* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include <linux/module.h>
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include <linux/module.h>
net: sch_generic remove redundant use of <linux/module.h>
net: inet_timewait_sock doesnt need <linux/module.h>
...
Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+ #include <linux/export.h>
#include <mach/map.h>
#include <mach/irqs.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
+ #include <linux/moduleparam.h>
#include <linux/smsc911x.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
.map_io = mx31_map_io,
.init_early = imx31_init_early,
.init_irq = mx31_init_irq,
+ .handle_irq = imx31_handle_irq,
.timer = &mx31lilly_timer,
.init_machine = mx31lilly_board_init,
MACHINE_END
#include <linux/memory.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+ #include <linux/moduleparam.h>
#include <linux/smsc911x.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
};
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
- .flags = MC13XXX_USE_RTC |
- MC13XXX_USE_REGULATOR,
+ .flags = MC13XXX_USE_RTC,
};
static struct spi_board_info mc13783_spi_dev __initdata = {
.map_io = mx31lite_map_io,
.init_early = imx31_init_early,
.init_irq = mx31_init_irq,
+ .handle_irq = imx31_handle_irq,
.timer = &mx31lite_timer,
.init_machine = mx31lite_init,
MACHINE_END
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+ #include <linux/moduleparam.h>
#include <linux/leds.h>
#include <linux/memory.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/types.h>
#include <linux/memblock.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/input.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
},
};
-static struct mc13783_led_platform_data moboard_led[] = {
+static struct mc13xxx_led_platform_data moboard_led[] = {
{
.id = MC13783_LED_R1,
.name = "coreboard-led-4:red",
},
};
-static struct mc13783_leds_platform_data moboard_leds = {
+static struct mc13xxx_leds_platform_data moboard_leds = {
.num_leds = ARRAY_SIZE(moboard_led),
.led = moboard_led,
.flags = MC13783_LED_SLEWLIMTC,
.tc2_period = MC13783_LED_PERIOD_10MS,
};
+static struct mc13xxx_buttons_platform_data moboard_buttons = {
+ .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
+ MC13783_BUTTON_POL_INVERT,
+ .b1on_key = KEY_POWER,
+};
+
static struct mc13xxx_platform_data moboard_pmic = {
.regulators = {
.regulators = moboard_regulators,
.num_regulators = ARRAY_SIZE(moboard_regulators),
},
.leds = &moboard_leds,
- .flags = MC13XXX_USE_REGULATOR | MC13XXX_USE_RTC |
- MC13XXX_USE_ADC | MC13XXX_USE_LED,
+ .buttons = &moboard_buttons,
+ .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC,
};
static struct spi_board_info moboard_spi_board_info[] __initdata = {
}
+static void mx31moboard_poweroff(void)
+{
+ struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
+
+ if (!IS_ERR(clk))
+ clk_enable(clk);
+
+ mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
+
+ __raw_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
+}
+
static int mx31moboard_baseboard;
core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
moboard_usbh2_init();
+ pm_power_off = mx31moboard_poweroff;
+
switch (mx31moboard_baseboard) {
case MX31NOBOARD:
break;
.map_io = mx31_map_io,
.init_early = imx31_init_early,
.init_irq = mx31_init_irq,
+ .handle_irq = imx31_handle_irq,
.timer = &mx31moboard_timer,
.init_machine = mx31moboard_init,
MACHINE_END
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
+ #include <linux/export.h>
#include <media/soc_camera.h>
*(volatile __u16 *) AMS_DELTA_LATCH2_VIRT = ams_delta_latch2_reg;
}
-static void __init ams_delta_init_irq(void)
-{
- omap1_init_common_hw();
- omap1_init_irq();
-}
-
static struct map_desc ams_delta_io_desc[] __initdata = {
/* AMS_DELTA_LATCH1 */
{
}
arch_initcall(ams_delta_modem_init);
-static void __init ams_delta_map_io(void)
-{
- omap1_map_common_io();
-}
-
MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
/* Maintainer: Jonathan McDowell <noodles@earth.li> */
.atag_offset = 0x100,
- .map_io = ams_delta_map_io,
+ .map_io = omap15xx_map_io,
+ .init_early = omap1_init_early,
.reserve = omap_reserve,
- .init_irq = ams_delta_init_irq,
+ .init_irq = omap1_init_irq,
.init_machine = ams_delta_init,
.timer = &omap1_timer,
MACHINE_END
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/errno.h>
+ #include <linux/export.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
gpio_direction_output(11, 0); /*A_SWITCH = 0 */
gpio_direction_output(15, 0); /*A_USB_ON = 0 */
}
-/*----------------------------------------*/
-static void __init omap_sx1_init_irq(void)
-{
- omap1_init_common_hw();
- omap1_init_irq();
-}
-/*----------------------------------------*/
-
-static void __init omap_sx1_map_io(void)
-{
- omap1_map_common_io();
-}
MACHINE_START(SX1, "OMAP310 based Siemens SX1")
.atag_offset = 0x100,
- .map_io = omap_sx1_map_io,
+ .map_io = omap15xx_map_io,
+ .init_early = omap1_init_early,
.reserve = omap_reserve,
- .init_irq = omap_sx1_init_irq,
+ .init_irq = omap1_init_irq,
.init_machine = omap_sx1_init,
.timer = &omap1_timer,
MACHINE_END
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <linux/smc91x.h>
+ #include <linux/export.h>
#include <mach/hardware.h>
#include <mach/system.h>
static struct omap_board_config_kernel voiceblue_config[] = {
};
-static void __init voiceblue_init_irq(void)
-{
- omap1_init_common_hw();
- omap1_init_irq();
-}
-
-static void __init voiceblue_map_io(void)
-{
- omap1_map_common_io();
-}
-
#define MACHINE_PANICED 1
#define MACHINE_REBOOTING 2
#define MACHINE_REBOOT 4
MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
/* Maintainer: Ladislav Michl <michl@2n.cz> */
.atag_offset = 0x100,
- .map_io = voiceblue_map_io,
+ .map_io = omap15xx_map_io,
+ .init_early = omap1_init_early,
.reserve = omap_reserve,
- .init_irq = voiceblue_init_irq,
+ .init_irq = omap1_init_irq,
.init_machine = voiceblue_init,
.timer = &omap1_timer,
MACHINE_END
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/mmc/host.h>
+ #include <linux/export.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
};
-static void __init omap3_evm_init_early(void)
-{
- omap2_init_common_infrastructure();
- omap2_init_common_devices(mt46h32m32lf6_sdrc_params, NULL);
-}
-
static struct usbhs_omap_board_data usbhs_bdata __initdata = {
.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
omap_display_init(&omap3_evm_dss_data);
omap_serial_init();
+ omap_sdrc_init(mt46h32m32lf6_sdrc_params, NULL);
/* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
usb_nop_xceiv_register();
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
- .init_early = omap3_evm_init_early,
+ .init_early = omap35xx_init_early,
.init_irq = omap3_init_irq,
.init_machine = omap3_evm_init,
.timer = &omap3_timer,
#include <linux/device.h>
#include <linux/list.h>
#include <linux/errno.h>
+ #include <linux/string.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/limits.h>
if (!clkdm || !clkdm->name)
return -EINVAL;
- if (!omap_chip_is(clkdm->omap_chip))
- return -EINVAL;
-
pwrdm = pwrdm_lookup(clkdm->pwrdm.name);
if (!pwrdm) {
pr_err("clockdomain: %s: powerdomain %s does not exist\n",
{
struct clkdm_dep *cd;
- if (!clkdm || !deps || !omap_chip_is(clkdm->omap_chip))
+ if (!clkdm || !deps)
return ERR_PTR(-EINVAL);
for (cd = deps; cd->clkdm_name; cd++) {
- if (!omap_chip_is(cd->omap_chip))
- continue;
-
if (!cd->clkdm && cd->clkdm_name)
cd->clkdm = _clkdm_lookup(cd->clkdm_name);
if (!autodep)
return;
- if (!omap_chip_is(autodep->omap_chip))
- return;
-
clkdm = clkdm_lookup(autodep->clkdm.name);
if (!clkdm) {
pr_err("clockdomain: autodeps: clockdomain %s does not exist\n",
if (IS_ERR(autodep->clkdm.ptr))
continue;
- if (!omap_chip_is(autodep->omap_chip))
- continue;
-
pr_debug("clockdomain: adding %s sleepdep/wkdep for "
"clkdm %s\n", autodep->clkdm.ptr->name,
clkdm->name);
if (IS_ERR(autodep->clkdm.ptr))
continue;
- if (!omap_chip_is(autodep->omap_chip))
- continue;
-
pr_debug("clockdomain: removing %s sleepdep/wkdep for "
"clkdm %s\n", autodep->clkdm.ptr->name,
clkdm->name);
struct clkdm_dep *cd;
for (cd = clkdm_deps; cd && cd->clkdm_name; cd++) {
- if (!omap_chip_is(cd->omap_chip))
- continue;
if (cd->clkdm)
continue;
cd->clkdm = _clkdm_lookup(cd->clkdm_name);
/* Public functions */
/**
- * clkdm_init - set up the clockdomain layer
- * @clkdms: optional pointer to an array of clockdomains to register
- * @init_autodeps: optional pointer to an array of autodeps to register
- * @custom_funcs: func pointers for arch specific implementations
+ * clkdm_register_platform_funcs - register clockdomain implementation fns
+ * @co: func pointers for arch specific implementations
*
- * Set up internal state. If a pointer to an array of clockdomains
- * @clkdms was supplied, loop through the list of clockdomains,
- * register all that are available on the current platform. Similarly,
- * if a pointer to an array of clockdomain autodependencies
- * @init_autodeps was provided, register those. No return value.
+ * Register the list of function pointers used to implement the
+ * clockdomain functions on different OMAP SoCs. Should be called
+ * before any other clkdm_register*() function. Returns -EINVAL if
+ * @co is null, -EEXIST if platform functions have already been
+ * registered, or 0 upon success.
*/
-void clkdm_init(struct clockdomain **clkdms,
- struct clkdm_autodep *init_autodeps,
- struct clkdm_ops *custom_funcs)
+int clkdm_register_platform_funcs(struct clkdm_ops *co)
+{
+ if (!co)
+ return -EINVAL;
+
+ if (arch_clkdm)
+ return -EEXIST;
+
+ arch_clkdm = co;
+
+ return 0;
+};
+
+/**
+ * clkdm_register_clkdms - register SoC clockdomains
+ * @cs: pointer to an array of struct clockdomain to register
+ *
+ * Register the clockdomains available on a particular OMAP SoC. Must
+ * be called after clkdm_register_platform_funcs(). May be called
+ * multiple times. Returns -EACCES if called before
+ * clkdm_register_platform_funcs(); -EINVAL if the argument @cs is
+ * null; or 0 upon success.
+ */
+int clkdm_register_clkdms(struct clockdomain **cs)
{
struct clockdomain **c = NULL;
- struct clockdomain *clkdm;
- struct clkdm_autodep *autodep = NULL;
- if (!custom_funcs)
- WARN(1, "No custom clkdm functions registered\n");
- else
- arch_clkdm = custom_funcs;
+ if (!arch_clkdm)
+ return -EACCES;
+
+ if (!cs)
+ return -EINVAL;
- if (clkdms)
- for (c = clkdms; *c; c++)
- _clkdm_register(*c);
+ for (c = cs; *c; c++)
+ _clkdm_register(*c);
+
+ return 0;
+}
+
+/**
+ * clkdm_register_autodeps - register autodeps (if required)
+ * @ia: pointer to a static array of struct clkdm_autodep to register
+ *
+ * Register clockdomain "automatic dependencies." These are
+ * clockdomain wakeup and sleep dependencies that are automatically
+ * added whenever the first clock inside a clockdomain is enabled, and
+ * removed whenever the last clock inside a clockdomain is disabled.
+ * These are currently only used on OMAP3 devices, and are deprecated,
+ * since they waste energy. However, until the OMAP2/3 IP block
+ * enable/disable sequence can be converted to match the OMAP4
+ * sequence, they are needed.
+ *
+ * Must be called only after all of the SoC clockdomains are
+ * registered, since the function will resolve autodep clockdomain
+ * names into clockdomain pointers.
+ *
+ * The struct clkdm_autodep @ia array must be static, as this function
+ * does not copy the array elements.
+ *
+ * Returns -EACCES if called before any clockdomains have been
+ * registered, -EINVAL if called with a null @ia argument, -EEXIST if
+ * autodeps have already been registered, or 0 upon success.
+ */
+int clkdm_register_autodeps(struct clkdm_autodep *ia)
+{
+ struct clkdm_autodep *a = NULL;
+
+ if (list_empty(&clkdm_list))
+ return -EACCES;
+
+ if (!ia)
+ return -EINVAL;
- autodeps = init_autodeps;
if (autodeps)
- for (autodep = autodeps; autodep->clkdm.ptr; autodep++)
- _autodep_lookup(autodep);
+ return -EEXIST;
+
+ autodeps = ia;
+ for (a = autodeps; a->clkdm.ptr; a++)
+ _autodep_lookup(a);
+
+ return 0;
+}
+
+/**
+ * clkdm_complete_init - set up the clockdomain layer
+ *
+ * Put all clockdomains into software-supervised mode; PM code should
+ * later enable hardware-supervised mode as appropriate. Must be
+ * called after clkdm_register_clkdms(). Returns -EACCES if called
+ * before clkdm_register_clkdms(), or 0 upon success.
+ */
+int clkdm_complete_init(void)
+{
+ struct clockdomain *clkdm;
+
+ if (list_empty(&clkdm_list))
+ return -EACCES;
- /*
- * Put all clockdomains into software-supervised mode; PM code
- * should later enable hardware-supervised mode as appropriate
- */
list_for_each_entry(clkdm, &clkdm_list, node) {
if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
clkdm_wakeup(clkdm);
_resolve_clkdm_deps(clkdm, clkdm->sleepdep_srcs);
clkdm_clear_all_sleepdeps(clkdm);
}
+
+ return 0;
}
/**
* GNU General Public License for more details.
*/
+ #include <linux/string.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
},
};
-static struct omap_device_pm_latency omap_dss_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
struct omap_dss_hwmod_data {
const char *oh_name;
const char *dev_name;
{
int r = 0;
struct omap_hwmod *oh;
- struct omap_device *od;
+ struct platform_device *pdev;
int i, oh_count;
struct omap_display_platform_data pdata;
const struct omap_dss_hwmod_data *curr_dss_hwmod;
return -ENODEV;
}
- od = omap_device_build(curr_dss_hwmod[i].dev_name,
+ pdev = omap_device_build(curr_dss_hwmod[i].dev_name,
curr_dss_hwmod[i].id, oh, &pdata,
sizeof(struct omap_display_platform_data),
- omap_dss_latency,
- ARRAY_SIZE(omap_dss_latency), 0);
+ NULL, 0, 0);
- if (WARN((IS_ERR(od)), "Could not build omap_device for %s\n",
+ if (WARN((IS_ERR(pdev)), "Could not build omap_device for %s\n",
curr_dss_hwmod[i].oh_name))
return -ENODEV;
}
#include <linux/io.h>
#include <linux/err.h>
#include <linux/opp.h>
+ #include <linux/export.h>
#include <plat/omap-pm.h>
#include <plat/omap_device.h>
static struct omap_device_pm_latency *pm_lats;
-static struct device *mpu_dev;
-static struct device *iva_dev;
-static struct device *l3_dev;
-static struct device *dsp_dev;
-
-struct device *omap2_get_mpuss_device(void)
-{
- WARN_ON_ONCE(!mpu_dev);
- return mpu_dev;
-}
-
-struct device *omap2_get_iva_device(void)
-{
- WARN_ON_ONCE(!iva_dev);
- return iva_dev;
-}
-
-struct device *omap2_get_l3_device(void)
-{
- WARN_ON_ONCE(!l3_dev);
- return l3_dev;
-}
-
-struct device *omap4_get_dsp_device(void)
-{
- WARN_ON_ONCE(!dsp_dev);
- return dsp_dev;
-}
-EXPORT_SYMBOL(omap4_get_dsp_device);
-
-/* static int _init_omap_device(struct omap_hwmod *oh, void *user) */
-static int _init_omap_device(char *name, struct device **new_dev)
+static int _init_omap_device(char *name)
{
struct omap_hwmod *oh;
- struct omap_device *od;
+ struct platform_device *pdev;
oh = omap_hwmod_lookup(name);
if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
__func__, name))
return -ENODEV;
- od = omap_device_build(oh->name, 0, oh, NULL, 0, pm_lats, 0, false);
- if (WARN(IS_ERR(od), "%s: could not build omap_device for %s\n",
+ pdev = omap_device_build(oh->name, 0, oh, NULL, 0, pm_lats, 0, false);
+ if (WARN(IS_ERR(pdev), "%s: could not build omap_device for %s\n",
__func__, name))
return -ENODEV;
- *new_dev = &od->pdev.dev;
-
return 0;
}
*/
static void omap2_init_processor_devices(void)
{
- _init_omap_device("mpu", &mpu_dev);
+ _init_omap_device("mpu");
if (omap3_has_iva())
- _init_omap_device("iva", &iva_dev);
+ _init_omap_device("iva");
if (cpu_is_omap44xx()) {
- _init_omap_device("l3_main_1", &l3_dev);
- _init_omap_device("dsp", &dsp_dev);
- _init_omap_device("iva", &iva_dev);
+ _init_omap_device("l3_main_1");
+ _init_omap_device("dsp");
+ _init_omap_device("iva");
} else {
- _init_omap_device("l3_main", &l3_dev);
+ _init_omap_device("l3_main");
}
}
ret = pwrdm_set_next_pwrst(pwrdm, state);
if (ret) {
- printk(KERN_ERR "Unable to set state of powerdomain: %s\n",
- pwrdm->name);
+ pr_err("%s: unable to set state of powerdomain: %s\n",
+ __func__, pwrdm->name);
goto err;
}
}
/*
- * This API is to be called during init to put the various voltage
+ * This API is to be called during init to set the various voltage
* domains to the voltage as per the opp table. Typically we boot up
* at the nominal voltage. So this function finds out the rate of
* the clock associated with the voltage domain, finds out the correct
- * opp entry and puts the voltage domain to the voltage specifies
+ * opp entry and sets the voltage domain to the voltage specified
* in the opp entry
*/
static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
- struct device *dev)
+ const char *oh_name)
{
struct voltagedomain *voltdm;
struct clk *clk;
struct opp *opp;
unsigned long freq, bootup_volt;
+ struct device *dev;
+
+ if (!vdd_name || !clk_name || !oh_name) {
+ pr_err("%s: invalid parameters\n", __func__);
+ goto exit;
+ }
- if (!vdd_name || !clk_name || !dev) {
- printk(KERN_ERR "%s: Invalid parameters!\n", __func__);
+ dev = omap_device_get_by_hwmod_name(oh_name);
+ if (IS_ERR(dev)) {
+ pr_err("%s: Unable to get dev pointer for hwmod %s\n",
+ __func__, oh_name);
goto exit;
}
- voltdm = omap_voltage_domain_lookup(vdd_name);
+ voltdm = voltdm_lookup(vdd_name);
if (IS_ERR(voltdm)) {
- printk(KERN_ERR "%s: Unable to get vdd pointer for vdd_%s\n",
+ pr_err("%s: unable to get vdd pointer for vdd_%s\n",
__func__, vdd_name);
goto exit;
}
clk = clk_get(NULL, clk_name);
if (IS_ERR(clk)) {
- printk(KERN_ERR "%s: unable to get clk %s\n",
- __func__, clk_name);
+ pr_err("%s: unable to get clk %s\n", __func__, clk_name);
goto exit;
}
opp = opp_find_freq_ceil(dev, &freq);
if (IS_ERR(opp)) {
- printk(KERN_ERR "%s: unable to find boot up OPP for vdd_%s\n",
+ pr_err("%s: unable to find boot up OPP for vdd_%s\n",
__func__, vdd_name);
goto exit;
}
bootup_volt = opp_get_voltage(opp);
if (!bootup_volt) {
- printk(KERN_ERR "%s: unable to find voltage corresponding"
+ pr_err("%s: unable to find voltage corresponding "
"to the bootup OPP for vdd_%s\n", __func__, vdd_name);
goto exit;
}
- omap_voltage_scale_vdd(voltdm, bootup_volt);
+ voltdm_scale(voltdm, bootup_volt);
return 0;
exit:
- printk(KERN_ERR "%s: Unable to put vdd_%s to its init voltage\n\n",
- __func__, vdd_name);
+ pr_err("%s: unable to set vdd_%s\n", __func__, vdd_name);
return -EINVAL;
}
if (!cpu_is_omap34xx())
return;
- omap2_set_init_voltage("mpu", "dpll1_ck", mpu_dev);
- omap2_set_init_voltage("core", "l3_ick", l3_dev);
+ omap2_set_init_voltage("mpu_iva", "dpll1_ck", "mpu");
+ omap2_set_init_voltage("core", "l3_ick", "l3_main");
}
static void __init omap4_init_voltages(void)
if (!cpu_is_omap44xx())
return;
- omap2_set_init_voltage("mpu", "dpll_mpu_ck", mpu_dev);
- omap2_set_init_voltage("core", "l3_div_ck", l3_dev);
- omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", iva_dev);
+ omap2_set_init_voltage("mpu", "dpll_mpu_ck", "mpu");
+ omap2_set_init_voltage("core", "l3_div_ck", "l3_main_1");
+ omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
}
static int __init omap2_common_pm_init(void)
{
- omap2_init_processor_devices();
+ if (!of_have_populated_dt())
+ omap2_init_processor_devices();
omap_pm_if_init();
return 0;
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/delay.h>
+ #include <linux/export.h>
#include <mach/system.h>
#include <plat/common.h>
void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals)
{
- /* Static mapping, never released */
- if (omap2_globals->prm) {
- prm_base = ioremap(omap2_globals->prm, SZ_8K);
- WARN_ON(!prm_base);
- }
- if (omap2_globals->cm) {
- cm_base = ioremap(omap2_globals->cm, SZ_8K);
- WARN_ON(!cm_base);
- }
- if (omap2_globals->cm2) {
- cm2_base = ioremap(omap2_globals->cm2, SZ_8K);
- WARN_ON(!cm2_base);
- }
+ if (omap2_globals->prm)
+ prm_base = omap2_globals->prm;
+ if (omap2_globals->cm)
+ cm_base = omap2_globals->cm;
+ if (omap2_globals->cm2)
+ cm2_base = omap2_globals->cm2;
}
#include <linux/delay.h>
#include <linux/io.h>
-#include <linux/clk.h>
#include <linux/err.h>
+ #include <linux/export.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
+#include <linux/clk.h>
#include <plat/common.h>
#include "control.h"
#include "voltage.h"
+#include "powerdomain.h"
#include "vc.h"
#include "vp.h"
-#define VOLTAGE_DIR_SIZE 16
-
-
-static struct omap_vdd_info **vdd_info;
-
-/*
- * Number of scalable voltage domains.
- */
-static int nr_scalable_vdd;
-
-/* XXX document */
-static s16 prm_mod_offs;
-static s16 prm_irqst_ocp_mod_offs;
-
-static struct dentry *voltage_dir;
-
-/* Init function pointers */
-static int vp_forceupdate_scale_voltage(struct omap_vdd_info *vdd,
- unsigned long target_volt);
-
-static u32 omap3_voltage_read_reg(u16 mod, u8 offset)
-{
- return omap2_prm_read_mod_reg(mod, offset);
-}
-
-static void omap3_voltage_write_reg(u32 val, u16 mod, u8 offset)
-{
- omap2_prm_write_mod_reg(val, mod, offset);
-}
-
-static u32 omap4_voltage_read_reg(u16 mod, u8 offset)
-{
- return omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
- mod, offset);
-}
-
-static void omap4_voltage_write_reg(u32 val, u16 mod, u8 offset)
-{
- omap4_prminst_write_inst_reg(val, OMAP4430_PRM_PARTITION, mod, offset);
-}
-
-static int __init _config_common_vdd_data(struct omap_vdd_info *vdd)
-{
- char *sys_ck_name;
- struct clk *sys_ck;
- u32 sys_clk_speed, timeout_val, waittime;
-
- /*
- * XXX Clockfw should handle this, or this should be in a
- * struct record
- */
- if (cpu_is_omap24xx() || cpu_is_omap34xx())
- sys_ck_name = "sys_ck";
- else if (cpu_is_omap44xx())
- sys_ck_name = "sys_clkin_ck";
- else
- return -EINVAL;
-
- /*
- * Sys clk rate is require to calculate vp timeout value and
- * smpswaittimemin and smpswaittimemax.
- */
- sys_ck = clk_get(NULL, sys_ck_name);
- if (IS_ERR(sys_ck)) {
- pr_warning("%s: Could not get the sys clk to calculate"
- "various vdd_%s params\n", __func__, vdd->voltdm.name);
- return -EINVAL;
- }
- sys_clk_speed = clk_get_rate(sys_ck);
- clk_put(sys_ck);
- /* Divide to avoid overflow */
- sys_clk_speed /= 1000;
-
- /* Generic voltage parameters */
- vdd->volt_scale = vp_forceupdate_scale_voltage;
- vdd->vp_enabled = false;
-
- vdd->vp_rt_data.vpconfig_erroroffset =
- (vdd->pmic_info->vp_erroroffset <<
- vdd->vp_data->vp_common->vpconfig_erroroffset_shift);
-
- timeout_val = (sys_clk_speed * vdd->pmic_info->vp_timeout_us) / 1000;
- vdd->vp_rt_data.vlimitto_timeout = timeout_val;
- vdd->vp_rt_data.vlimitto_vddmin = vdd->pmic_info->vp_vddmin;
- vdd->vp_rt_data.vlimitto_vddmax = vdd->pmic_info->vp_vddmax;
-
- waittime = ((vdd->pmic_info->step_size / vdd->pmic_info->slew_rate) *
- sys_clk_speed) / 1000;
- vdd->vp_rt_data.vstepmin_smpswaittimemin = waittime;
- vdd->vp_rt_data.vstepmax_smpswaittimemax = waittime;
- vdd->vp_rt_data.vstepmin_stepmin = vdd->pmic_info->vp_vstepmin;
- vdd->vp_rt_data.vstepmax_stepmax = vdd->pmic_info->vp_vstepmax;
-
- return 0;
-}
-
-/* Voltage debugfs support */
-static int vp_volt_debug_get(void *data, u64 *val)
-{
- struct omap_vdd_info *vdd = (struct omap_vdd_info *) data;
- u8 vsel;
-
- if (!vdd) {
- pr_warning("Wrong paramater passed\n");
- return -EINVAL;
- }
-
- vsel = vdd->read_reg(prm_mod_offs, vdd->vp_data->voltage);
-
- if (!vdd->pmic_info->vsel_to_uv) {
- pr_warning("PMIC function to convert vsel to voltage"
- "in uV not registerd\n");
- return -EINVAL;
- }
-
- *val = vdd->pmic_info->vsel_to_uv(vsel);
- return 0;
-}
-
-static int nom_volt_debug_get(void *data, u64 *val)
-{
- struct omap_vdd_info *vdd = (struct omap_vdd_info *) data;
-
- if (!vdd) {
- pr_warning("Wrong paramater passed\n");
- return -EINVAL;
- }
-
- *val = omap_voltage_get_nom_volt(&vdd->voltdm);
-
- return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(vp_volt_debug_fops, vp_volt_debug_get, NULL, "%llu\n");
-DEFINE_SIMPLE_ATTRIBUTE(nom_volt_debug_fops, nom_volt_debug_get, NULL,
- "%llu\n");
-static void vp_latch_vsel(struct omap_vdd_info *vdd)
-{
- u32 vpconfig;
- unsigned long uvdc;
- char vsel;
-
- uvdc = omap_voltage_get_nom_volt(&vdd->voltdm);
- if (!uvdc) {
- pr_warning("%s: unable to find current voltage for vdd_%s\n",
- __func__, vdd->voltdm.name);
- return;
- }
-
- if (!vdd->pmic_info || !vdd->pmic_info->uv_to_vsel) {
- pr_warning("%s: PMIC function to convert voltage in uV to"
- " vsel not registered\n", __func__);
- return;
- }
-
- vsel = vdd->pmic_info->uv_to_vsel(uvdc);
-
- vpconfig = vdd->read_reg(prm_mod_offs, vdd->vp_data->vpconfig);
- vpconfig &= ~(vdd->vp_data->vp_common->vpconfig_initvoltage_mask |
- vdd->vp_data->vp_common->vpconfig_initvdd);
- vpconfig |= vsel << vdd->vp_data->vp_common->vpconfig_initvoltage_shift;
-
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- /* Trigger initVDD value copy to voltage processor */
- vdd->write_reg((vpconfig | vdd->vp_data->vp_common->vpconfig_initvdd),
- prm_mod_offs, vdd->vp_data->vpconfig);
-
- /* Clear initVDD copy trigger bit */
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-}
-
-/* Generic voltage init functions */
-static void __init vp_init(struct omap_vdd_info *vdd)
-{
- u32 vp_val;
-
- if (!vdd->read_reg || !vdd->write_reg) {
- pr_err("%s: No read/write API for accessing vdd_%s regs\n",
- __func__, vdd->voltdm.name);
- return;
- }
-
- vp_val = vdd->vp_rt_data.vpconfig_erroroffset |
- (vdd->vp_rt_data.vpconfig_errorgain <<
- vdd->vp_data->vp_common->vpconfig_errorgain_shift) |
- vdd->vp_data->vp_common->vpconfig_timeouten;
- vdd->write_reg(vp_val, prm_mod_offs, vdd->vp_data->vpconfig);
-
- vp_val = ((vdd->vp_rt_data.vstepmin_smpswaittimemin <<
- vdd->vp_data->vp_common->vstepmin_smpswaittimemin_shift) |
- (vdd->vp_rt_data.vstepmin_stepmin <<
- vdd->vp_data->vp_common->vstepmin_stepmin_shift));
- vdd->write_reg(vp_val, prm_mod_offs, vdd->vp_data->vstepmin);
-
- vp_val = ((vdd->vp_rt_data.vstepmax_smpswaittimemax <<
- vdd->vp_data->vp_common->vstepmax_smpswaittimemax_shift) |
- (vdd->vp_rt_data.vstepmax_stepmax <<
- vdd->vp_data->vp_common->vstepmax_stepmax_shift));
- vdd->write_reg(vp_val, prm_mod_offs, vdd->vp_data->vstepmax);
-
- vp_val = ((vdd->vp_rt_data.vlimitto_vddmax <<
- vdd->vp_data->vp_common->vlimitto_vddmax_shift) |
- (vdd->vp_rt_data.vlimitto_vddmin <<
- vdd->vp_data->vp_common->vlimitto_vddmin_shift) |
- (vdd->vp_rt_data.vlimitto_timeout <<
- vdd->vp_data->vp_common->vlimitto_timeout_shift));
- vdd->write_reg(vp_val, prm_mod_offs, vdd->vp_data->vlimitto);
-}
-
-static void __init vdd_debugfs_init(struct omap_vdd_info *vdd)
-{
- char *name;
-
- name = kzalloc(VOLTAGE_DIR_SIZE, GFP_KERNEL);
- if (!name) {
- pr_warning("%s: Unable to allocate memory for debugfs"
- " directory name for vdd_%s",
- __func__, vdd->voltdm.name);
- return;
- }
- strcpy(name, "vdd_");
- strcat(name, vdd->voltdm.name);
-
- vdd->debug_dir = debugfs_create_dir(name, voltage_dir);
- kfree(name);
- if (IS_ERR(vdd->debug_dir)) {
- pr_warning("%s: Unable to create debugfs directory for"
- " vdd_%s\n", __func__, vdd->voltdm.name);
- vdd->debug_dir = NULL;
- return;
- }
-
- (void) debugfs_create_x16("vp_errorgain", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vpconfig_errorgain));
- (void) debugfs_create_x16("vp_smpswaittimemin", S_IRUGO,
- vdd->debug_dir,
- &(vdd->vp_rt_data.vstepmin_smpswaittimemin));
- (void) debugfs_create_x8("vp_stepmin", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vstepmin_stepmin));
- (void) debugfs_create_x16("vp_smpswaittimemax", S_IRUGO,
- vdd->debug_dir,
- &(vdd->vp_rt_data.vstepmax_smpswaittimemax));
- (void) debugfs_create_x8("vp_stepmax", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vstepmax_stepmax));
- (void) debugfs_create_x8("vp_vddmax", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vlimitto_vddmax));
- (void) debugfs_create_x8("vp_vddmin", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vlimitto_vddmin));
- (void) debugfs_create_x16("vp_timeout", S_IRUGO, vdd->debug_dir,
- &(vdd->vp_rt_data.vlimitto_timeout));
- (void) debugfs_create_file("curr_vp_volt", S_IRUGO, vdd->debug_dir,
- (void *) vdd, &vp_volt_debug_fops);
- (void) debugfs_create_file("curr_nominal_volt", S_IRUGO,
- vdd->debug_dir, (void *) vdd,
- &nom_volt_debug_fops);
-}
-
-/* Voltage scale and accessory APIs */
-static int _pre_volt_scale(struct omap_vdd_info *vdd,
- unsigned long target_volt, u8 *target_vsel, u8 *current_vsel)
-{
- struct omap_volt_data *volt_data;
- const struct omap_vc_common_data *vc_common;
- const struct omap_vp_common_data *vp_common;
- u32 vc_cmdval, vp_errgain_val;
-
- vc_common = vdd->vc_data->vc_common;
- vp_common = vdd->vp_data->vp_common;
-
- /* Check if suffiecient pmic info is available for this vdd */
- if (!vdd->pmic_info) {
- pr_err("%s: Insufficient pmic info to scale the vdd_%s\n",
- __func__, vdd->voltdm.name);
- return -EINVAL;
- }
-
- if (!vdd->pmic_info->uv_to_vsel) {
- pr_err("%s: PMIC function to convert voltage in uV to"
- "vsel not registered. Hence unable to scale voltage"
- "for vdd_%s\n", __func__, vdd->voltdm.name);
- return -ENODATA;
- }
-
- if (!vdd->read_reg || !vdd->write_reg) {
- pr_err("%s: No read/write API for accessing vdd_%s regs\n",
- __func__, vdd->voltdm.name);
- return -EINVAL;
- }
-
- /* Get volt_data corresponding to target_volt */
- volt_data = omap_voltage_get_voltdata(&vdd->voltdm, target_volt);
- if (IS_ERR(volt_data))
- volt_data = NULL;
-
- *target_vsel = vdd->pmic_info->uv_to_vsel(target_volt);
- *current_vsel = vdd->read_reg(prm_mod_offs, vdd->vp_data->voltage);
-
- /* Setting the ON voltage to the new target voltage */
- vc_cmdval = vdd->read_reg(prm_mod_offs, vdd->vc_data->cmdval_reg);
- vc_cmdval &= ~vc_common->cmd_on_mask;
- vc_cmdval |= (*target_vsel << vc_common->cmd_on_shift);
- vdd->write_reg(vc_cmdval, prm_mod_offs, vdd->vc_data->cmdval_reg);
-
- /* Setting vp errorgain based on the voltage */
- if (volt_data) {
- vp_errgain_val = vdd->read_reg(prm_mod_offs,
- vdd->vp_data->vpconfig);
- vdd->vp_rt_data.vpconfig_errorgain = volt_data->vp_errgain;
- vp_errgain_val &= ~vp_common->vpconfig_errorgain_mask;
- vp_errgain_val |= vdd->vp_rt_data.vpconfig_errorgain <<
- vp_common->vpconfig_errorgain_shift;
- vdd->write_reg(vp_errgain_val, prm_mod_offs,
- vdd->vp_data->vpconfig);
- }
-
- return 0;
-}
-
-static void _post_volt_scale(struct omap_vdd_info *vdd,
- unsigned long target_volt, u8 target_vsel, u8 current_vsel)
-{
- u32 smps_steps = 0, smps_delay = 0;
-
- smps_steps = abs(target_vsel - current_vsel);
- /* SMPS slew rate / step size. 2us added as buffer. */
- smps_delay = ((smps_steps * vdd->pmic_info->step_size) /
- vdd->pmic_info->slew_rate) + 2;
- udelay(smps_delay);
-
- vdd->curr_volt = target_volt;
-}
-
-/* vc_bypass_scale_voltage - VC bypass method of voltage scaling */
-static int vc_bypass_scale_voltage(struct omap_vdd_info *vdd,
- unsigned long target_volt)
-{
- u32 loop_cnt = 0, retries_cnt = 0;
- u32 vc_valid, vc_bypass_val_reg, vc_bypass_value;
- u8 target_vsel, current_vsel;
- int ret;
-
- ret = _pre_volt_scale(vdd, target_volt, &target_vsel, ¤t_vsel);
- if (ret)
- return ret;
-
- vc_valid = vdd->vc_data->vc_common->valid;
- vc_bypass_val_reg = vdd->vc_data->vc_common->bypass_val_reg;
- vc_bypass_value = (target_vsel << vdd->vc_data->vc_common->data_shift) |
- (vdd->pmic_info->pmic_reg <<
- vdd->vc_data->vc_common->regaddr_shift) |
- (vdd->pmic_info->i2c_slave_addr <<
- vdd->vc_data->vc_common->slaveaddr_shift);
-
- vdd->write_reg(vc_bypass_value, prm_mod_offs, vc_bypass_val_reg);
- vdd->write_reg(vc_bypass_value | vc_valid, prm_mod_offs,
- vc_bypass_val_reg);
-
- vc_bypass_value = vdd->read_reg(prm_mod_offs, vc_bypass_val_reg);
- /*
- * Loop till the bypass command is acknowledged from the SMPS.
- * NOTE: This is legacy code. The loop count and retry count needs
- * to be revisited.
- */
- while (!(vc_bypass_value & vc_valid)) {
- loop_cnt++;
-
- if (retries_cnt > 10) {
- pr_warning("%s: Retry count exceeded\n", __func__);
- return -ETIMEDOUT;
- }
-
- if (loop_cnt > 50) {
- retries_cnt++;
- loop_cnt = 0;
- udelay(10);
- }
- vc_bypass_value = vdd->read_reg(prm_mod_offs,
- vc_bypass_val_reg);
- }
-
- _post_volt_scale(vdd, target_volt, target_vsel, current_vsel);
- return 0;
-}
-
-/* VP force update method of voltage scaling */
-static int vp_forceupdate_scale_voltage(struct omap_vdd_info *vdd,
- unsigned long target_volt)
-{
- u32 vpconfig;
- u8 target_vsel, current_vsel, prm_irqst_reg;
- int ret, timeout = 0;
-
- ret = _pre_volt_scale(vdd, target_volt, &target_vsel, ¤t_vsel);
- if (ret)
- return ret;
-
- prm_irqst_reg = vdd->vp_data->prm_irqst_data->prm_irqst_reg;
-
- /*
- * Clear all pending TransactionDone interrupt/status. Typical latency
- * is <3us
- */
- while (timeout++ < VP_TRANXDONE_TIMEOUT) {
- vdd->write_reg(vdd->vp_data->prm_irqst_data->tranxdone_status,
- prm_irqst_ocp_mod_offs, prm_irqst_reg);
- if (!(vdd->read_reg(prm_irqst_ocp_mod_offs, prm_irqst_reg) &
- vdd->vp_data->prm_irqst_data->tranxdone_status))
- break;
- udelay(1);
- }
- if (timeout >= VP_TRANXDONE_TIMEOUT) {
- pr_warning("%s: vdd_%s TRANXDONE timeout exceeded."
- "Voltage change aborted", __func__, vdd->voltdm.name);
- return -ETIMEDOUT;
- }
-
- /* Configure for VP-Force Update */
- vpconfig = vdd->read_reg(prm_mod_offs, vdd->vp_data->vpconfig);
- vpconfig &= ~(vdd->vp_data->vp_common->vpconfig_initvdd |
- vdd->vp_data->vp_common->vpconfig_forceupdate |
- vdd->vp_data->vp_common->vpconfig_initvoltage_mask);
- vpconfig |= ((target_vsel <<
- vdd->vp_data->vp_common->vpconfig_initvoltage_shift));
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- /* Trigger initVDD value copy to voltage processor */
- vpconfig |= vdd->vp_data->vp_common->vpconfig_initvdd;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- /* Force update of voltage */
- vpconfig |= vdd->vp_data->vp_common->vpconfig_forceupdate;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- /*
- * Wait for TransactionDone. Typical latency is <200us.
- * Depends on SMPSWAITTIMEMIN/MAX and voltage change
- */
- timeout = 0;
- omap_test_timeout((vdd->read_reg(prm_irqst_ocp_mod_offs, prm_irqst_reg) &
- vdd->vp_data->prm_irqst_data->tranxdone_status),
- VP_TRANXDONE_TIMEOUT, timeout);
- if (timeout >= VP_TRANXDONE_TIMEOUT)
- pr_err("%s: vdd_%s TRANXDONE timeout exceeded."
- "TRANXDONE never got set after the voltage update\n",
- __func__, vdd->voltdm.name);
-
- _post_volt_scale(vdd, target_volt, target_vsel, current_vsel);
-
- /*
- * Disable TransactionDone interrupt , clear all status, clear
- * control registers
- */
- timeout = 0;
- while (timeout++ < VP_TRANXDONE_TIMEOUT) {
- vdd->write_reg(vdd->vp_data->prm_irqst_data->tranxdone_status,
- prm_irqst_ocp_mod_offs, prm_irqst_reg);
- if (!(vdd->read_reg(prm_irqst_ocp_mod_offs, prm_irqst_reg) &
- vdd->vp_data->prm_irqst_data->tranxdone_status))
- break;
- udelay(1);
- }
-
- if (timeout >= VP_TRANXDONE_TIMEOUT)
- pr_warning("%s: vdd_%s TRANXDONE timeout exceeded while trying"
- "to clear the TRANXDONE status\n",
- __func__, vdd->voltdm.name);
-
- vpconfig = vdd->read_reg(prm_mod_offs, vdd->vp_data->vpconfig);
- /* Clear initVDD copy trigger bit */
- vpconfig &= ~vdd->vp_data->vp_common->vpconfig_initvdd;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
- /* Clear force bit */
- vpconfig &= ~vdd->vp_data->vp_common->vpconfig_forceupdate;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- return 0;
-}
-
-static void __init omap3_vfsm_init(struct omap_vdd_info *vdd)
-{
- /*
- * Voltage Manager FSM parameters init
- * XXX This data should be passed in from the board file
- */
- vdd->write_reg(OMAP3_CLKSETUP, prm_mod_offs, OMAP3_PRM_CLKSETUP_OFFSET);
- vdd->write_reg(OMAP3_VOLTOFFSET, prm_mod_offs,
- OMAP3_PRM_VOLTOFFSET_OFFSET);
- vdd->write_reg(OMAP3_VOLTSETUP2, prm_mod_offs,
- OMAP3_PRM_VOLTSETUP2_OFFSET);
-}
-
-static void __init omap3_vc_init(struct omap_vdd_info *vdd)
-{
- static bool is_initialized;
- u8 on_vsel, onlp_vsel, ret_vsel, off_vsel;
- u32 vc_val;
-
- if (is_initialized)
- return;
-
- /* Set up the on, inactive, retention and off voltage */
- on_vsel = vdd->pmic_info->uv_to_vsel(vdd->pmic_info->on_volt);
- onlp_vsel = vdd->pmic_info->uv_to_vsel(vdd->pmic_info->onlp_volt);
- ret_vsel = vdd->pmic_info->uv_to_vsel(vdd->pmic_info->ret_volt);
- off_vsel = vdd->pmic_info->uv_to_vsel(vdd->pmic_info->off_volt);
- vc_val = ((on_vsel << vdd->vc_data->vc_common->cmd_on_shift) |
- (onlp_vsel << vdd->vc_data->vc_common->cmd_onlp_shift) |
- (ret_vsel << vdd->vc_data->vc_common->cmd_ret_shift) |
- (off_vsel << vdd->vc_data->vc_common->cmd_off_shift));
- vdd->write_reg(vc_val, prm_mod_offs, vdd->vc_data->cmdval_reg);
-
- /*
- * Generic VC parameters init
- * XXX This data should be abstracted out
- */
- vdd->write_reg(OMAP3430_CMD1_MASK | OMAP3430_RAV1_MASK, prm_mod_offs,
- OMAP3_PRM_VC_CH_CONF_OFFSET);
- vdd->write_reg(OMAP3430_MCODE_SHIFT | OMAP3430_HSEN_MASK, prm_mod_offs,
- OMAP3_PRM_VC_I2C_CFG_OFFSET);
-
- omap3_vfsm_init(vdd);
-
- is_initialized = true;
-}
-
-
-/* OMAP4 specific voltage init functions */
-static void __init omap4_vc_init(struct omap_vdd_info *vdd)
-{
- static bool is_initialized;
- u32 vc_val;
-
- if (is_initialized)
- return;
-
- /* TODO: Configure setup times and CMD_VAL values*/
-
- /*
- * Generic VC parameters init
- * XXX This data should be abstracted out
- */
- vc_val = (OMAP4430_RAV_VDD_MPU_L_MASK | OMAP4430_CMD_VDD_MPU_L_MASK |
- OMAP4430_RAV_VDD_IVA_L_MASK | OMAP4430_CMD_VDD_IVA_L_MASK |
- OMAP4430_RAV_VDD_CORE_L_MASK | OMAP4430_CMD_VDD_CORE_L_MASK);
- vdd->write_reg(vc_val, prm_mod_offs, OMAP4_PRM_VC_CFG_CHANNEL_OFFSET);
-
- /* XXX These are magic numbers and do not belong! */
- vc_val = (0x60 << OMAP4430_SCLL_SHIFT | 0x26 << OMAP4430_SCLH_SHIFT);
- vdd->write_reg(vc_val, prm_mod_offs, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET);
-
- is_initialized = true;
-}
-
-static void __init omap_vc_init(struct omap_vdd_info *vdd)
-{
- u32 vc_val;
-
- if (!vdd->pmic_info || !vdd->pmic_info->uv_to_vsel) {
- pr_err("%s: PMIC info requried to configure vc for"
- "vdd_%s not populated.Hence cannot initialize vc\n",
- __func__, vdd->voltdm.name);
- return;
- }
-
- if (!vdd->read_reg || !vdd->write_reg) {
- pr_err("%s: No read/write API for accessing vdd_%s regs\n",
- __func__, vdd->voltdm.name);
- return;
- }
-
- /* Set up the SMPS_SA(i2c slave address in VC */
- vc_val = vdd->read_reg(prm_mod_offs,
- vdd->vc_data->vc_common->smps_sa_reg);
- vc_val &= ~vdd->vc_data->smps_sa_mask;
- vc_val |= vdd->pmic_info->i2c_slave_addr << vdd->vc_data->smps_sa_shift;
- vdd->write_reg(vc_val, prm_mod_offs,
- vdd->vc_data->vc_common->smps_sa_reg);
-
- /* Setup the VOLRA(pmic reg addr) in VC */
- vc_val = vdd->read_reg(prm_mod_offs,
- vdd->vc_data->vc_common->smps_volra_reg);
- vc_val &= ~vdd->vc_data->smps_volra_mask;
- vc_val |= vdd->pmic_info->pmic_reg << vdd->vc_data->smps_volra_shift;
- vdd->write_reg(vc_val, prm_mod_offs,
- vdd->vc_data->vc_common->smps_volra_reg);
-
- /* Configure the setup times */
- vc_val = vdd->read_reg(prm_mod_offs, vdd->vfsm->voltsetup_reg);
- vc_val &= ~vdd->vfsm->voltsetup_mask;
- vc_val |= vdd->pmic_info->volt_setup_time <<
- vdd->vfsm->voltsetup_shift;
- vdd->write_reg(vc_val, prm_mod_offs, vdd->vfsm->voltsetup_reg);
-
- if (cpu_is_omap34xx())
- omap3_vc_init(vdd);
- else if (cpu_is_omap44xx())
- omap4_vc_init(vdd);
-}
-
-static int __init omap_vdd_data_configure(struct omap_vdd_info *vdd)
-{
- int ret = -EINVAL;
-
- if (!vdd->pmic_info) {
- pr_err("%s: PMIC info requried to configure vdd_%s not"
- "populated.Hence cannot initialize vdd_%s\n",
- __func__, vdd->voltdm.name, vdd->voltdm.name);
- goto ovdc_out;
- }
-
- if (IS_ERR_VALUE(_config_common_vdd_data(vdd)))
- goto ovdc_out;
-
- if (cpu_is_omap34xx()) {
- vdd->read_reg = omap3_voltage_read_reg;
- vdd->write_reg = omap3_voltage_write_reg;
- ret = 0;
- } else if (cpu_is_omap44xx()) {
- vdd->read_reg = omap4_voltage_read_reg;
- vdd->write_reg = omap4_voltage_write_reg;
- ret = 0;
- }
-
-ovdc_out:
- return ret;
-}
+static LIST_HEAD(voltdm_list);
/* Public functions */
/**
- * omap_voltage_get_nom_volt() - Gets the current non-auto-compensated voltage
- * @voltdm: pointer to the VDD for which current voltage info is needed
+ * voltdm_get_voltage() - Gets the current non-auto-compensated voltage
+ * @voltdm: pointer to the voltdm for which current voltage info is needed
*
- * API to get the current non-auto-compensated voltage for a VDD.
- * Returns 0 in case of error else returns the current voltage for the VDD.
+ * API to get the current non-auto-compensated voltage for a voltage domain.
+ * Returns 0 in case of error else returns the current voltage.
*/
-unsigned long omap_voltage_get_nom_volt(struct voltagedomain *voltdm)
+unsigned long voltdm_get_voltage(struct voltagedomain *voltdm)
{
- struct omap_vdd_info *vdd;
-
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return 0;
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- return vdd->curr_volt;
+ return voltdm->nominal_volt;
}
/**
- * omap_vp_get_curr_volt() - API to get the current vp voltage.
- * @voltdm: pointer to the VDD.
- *
- * This API returns the current voltage for the specified voltage processor
- */
-unsigned long omap_vp_get_curr_volt(struct voltagedomain *voltdm)
-{
- struct omap_vdd_info *vdd;
- u8 curr_vsel;
-
- if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
- return 0;
- }
-
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
- if (!vdd->read_reg) {
- pr_err("%s: No read API for reading vdd_%s regs\n",
- __func__, voltdm->name);
- return 0;
- }
-
- curr_vsel = vdd->read_reg(prm_mod_offs, vdd->vp_data->voltage);
-
- if (!vdd->pmic_info || !vdd->pmic_info->vsel_to_uv) {
- pr_warning("%s: PMIC function to convert vsel to voltage"
- "in uV not registerd\n", __func__);
- return 0;
- }
-
- return vdd->pmic_info->vsel_to_uv(curr_vsel);
-}
-
-/**
- * omap_vp_enable() - API to enable a particular VP
- * @voltdm: pointer to the VDD whose VP is to be enabled.
- *
- * This API enables a particular voltage processor. Needed by the smartreflex
- * class drivers.
- */
-void omap_vp_enable(struct voltagedomain *voltdm)
-{
- struct omap_vdd_info *vdd;
- u32 vpconfig;
-
- if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
- return;
- }
-
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
- if (!vdd->read_reg || !vdd->write_reg) {
- pr_err("%s: No read/write API for accessing vdd_%s regs\n",
- __func__, voltdm->name);
- return;
- }
-
- /* If VP is already enabled, do nothing. Return */
- if (vdd->vp_enabled)
- return;
-
- vp_latch_vsel(vdd);
-
- /* Enable VP */
- vpconfig = vdd->read_reg(prm_mod_offs, vdd->vp_data->vpconfig);
- vpconfig |= vdd->vp_data->vp_common->vpconfig_vpenable;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
- vdd->vp_enabled = true;
-}
-
-/**
- * omap_vp_disable() - API to disable a particular VP
- * @voltdm: pointer to the VDD whose VP is to be disabled.
- *
- * This API disables a particular voltage processor. Needed by the smartreflex
- * class drivers.
- */
-void omap_vp_disable(struct voltagedomain *voltdm)
-{
- struct omap_vdd_info *vdd;
- u32 vpconfig;
- int timeout;
-
- if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
- return;
- }
-
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
- if (!vdd->read_reg || !vdd->write_reg) {
- pr_err("%s: No read/write API for accessing vdd_%s regs\n",
- __func__, voltdm->name);
- return;
- }
-
- /* If VP is already disabled, do nothing. Return */
- if (!vdd->vp_enabled) {
- pr_warning("%s: Trying to disable VP for vdd_%s when"
- "it is already disabled\n", __func__, voltdm->name);
- return;
- }
-
- /* Disable VP */
- vpconfig = vdd->read_reg(prm_mod_offs, vdd->vp_data->vpconfig);
- vpconfig &= ~vdd->vp_data->vp_common->vpconfig_vpenable;
- vdd->write_reg(vpconfig, prm_mod_offs, vdd->vp_data->vpconfig);
-
- /*
- * Wait for VP idle Typical latency is <2us. Maximum latency is ~100us
- */
- omap_test_timeout((vdd->read_reg(prm_mod_offs, vdd->vp_data->vstatus)),
- VP_IDLE_TIMEOUT, timeout);
-
- if (timeout >= VP_IDLE_TIMEOUT)
- pr_warning("%s: vdd_%s idle timedout\n",
- __func__, voltdm->name);
-
- vdd->vp_enabled = false;
-
- return;
-}
-
-/**
- * omap_voltage_scale_vdd() - API to scale voltage of a particular
- * voltage domain.
- * @voltdm: pointer to the VDD which is to be scaled.
- * @target_volt: The target voltage of the voltage domain
+ * voltdm_scale() - API to scale voltage of a particular voltage domain.
+ * @voltdm: pointer to the voltage domain which is to be scaled.
+ * @target_volt: The target voltage of the voltage domain
*
* This API should be called by the kernel to do the voltage scaling
- * for a particular voltage domain during dvfs or any other situation.
+ * for a particular voltage domain during DVFS.
*/
-int omap_voltage_scale_vdd(struct voltagedomain *voltdm,
- unsigned long target_volt)
+int voltdm_scale(struct voltagedomain *voltdm,
+ unsigned long target_volt)
{
- struct omap_vdd_info *vdd;
+ int ret;
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return -EINVAL;
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- if (!vdd->volt_scale) {
+ if (!voltdm->scale) {
pr_err("%s: No voltage scale API registered for vdd_%s\n",
__func__, voltdm->name);
return -ENODATA;
}
- return vdd->volt_scale(vdd, target_volt);
+ ret = voltdm->scale(voltdm, target_volt);
+ if (!ret)
+ voltdm->nominal_volt = target_volt;
+
+ return ret;
}
/**
- * omap_voltage_reset() - Resets the voltage of a particular voltage domain
- * to that of the current OPP.
- * @voltdm: pointer to the VDD whose voltage is to be reset.
+ * voltdm_reset() - Resets the voltage of a particular voltage domain
+ * to that of the current OPP.
+ * @voltdm: pointer to the voltage domain whose voltage is to be reset.
*
* This API finds out the correct voltage the voltage domain is supposed
* to be at and resets the voltage to that level. Should be used especially
* while disabling any voltage compensation modules.
*/
-void omap_voltage_reset(struct voltagedomain *voltdm)
+void voltdm_reset(struct voltagedomain *voltdm)
{
- unsigned long target_uvdc;
+ unsigned long target_volt;
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return;
}
- target_uvdc = omap_voltage_get_nom_volt(voltdm);
- if (!target_uvdc) {
+ target_volt = voltdm_get_voltage(voltdm);
+ if (!target_volt) {
pr_err("%s: unable to find current voltage for vdd_%s\n",
__func__, voltdm->name);
return;
}
- omap_voltage_scale_vdd(voltdm, target_uvdc);
+ voltdm_scale(voltdm, target_volt);
}
/**
*
*/
void omap_voltage_get_volttable(struct voltagedomain *voltdm,
- struct omap_volt_data **volt_data)
+ struct omap_volt_data **volt_data)
{
- struct omap_vdd_info *vdd;
-
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return;
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- *volt_data = vdd->volt_data;
+ *volt_data = voltdm->volt_data;
}
/**
* domain or if there is no matching entry.
*/
struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
- unsigned long volt)
+ unsigned long volt)
{
- struct omap_vdd_info *vdd;
int i;
if (!voltdm || IS_ERR(voltdm)) {
return ERR_PTR(-EINVAL);
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- if (!vdd->volt_data) {
+ if (!voltdm->volt_data) {
pr_warning("%s: voltage table does not exist for vdd_%s\n",
__func__, voltdm->name);
return ERR_PTR(-ENODATA);
}
- for (i = 0; vdd->volt_data[i].volt_nominal != 0; i++) {
- if (vdd->volt_data[i].volt_nominal == volt)
- return &vdd->volt_data[i];
+ for (i = 0; voltdm->volt_data[i].volt_nominal != 0; i++) {
+ if (voltdm->volt_data[i].volt_nominal == volt)
+ return &voltdm->volt_data[i];
}
pr_notice("%s: Unable to match the current voltage with the voltage"
* omap_voltage_register_pmic() - API to register PMIC specific data
* @voltdm: pointer to the VDD for which the PMIC specific data is
* to be registered
- * @pmic_info: the structure containing pmic info
+ * @pmic: the structure containing pmic info
*
* This API is to be called by the SOC/PMIC file to specify the
- * pmic specific info as present in omap_volt_pmic_info structure.
+ * pmic specific info as present in omap_voltdm_pmic structure.
*/
int omap_voltage_register_pmic(struct voltagedomain *voltdm,
- struct omap_volt_pmic_info *pmic_info)
+ struct omap_voltdm_pmic *pmic)
{
- struct omap_vdd_info *vdd;
-
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return -EINVAL;
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- vdd->pmic_info = pmic_info;
+ voltdm->pmic = pmic;
return 0;
}
-/**
- * omap_voltage_get_dbgdir() - API to get pointer to the debugfs directory
- * corresponding to a voltage domain.
- *
- * @voltdm: pointer to the VDD whose debug directory is required.
- *
- * This API returns pointer to the debugfs directory corresponding
- * to the voltage domain. Should be used by drivers requiring to
- * add any debug entry for a particular voltage domain. Returns NULL
- * in case of error.
- */
-struct dentry *omap_voltage_get_dbgdir(struct voltagedomain *voltdm)
-{
- struct omap_vdd_info *vdd;
-
- if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
- return NULL;
- }
-
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
- return vdd->debug_dir;
-}
-
/**
* omap_change_voltscale_method() - API to change the voltage scaling method.
* @voltdm: pointer to the VDD whose voltage scaling method
* defined in voltage.h
*/
void omap_change_voltscale_method(struct voltagedomain *voltdm,
- int voltscale_method)
+ int voltscale_method)
{
- struct omap_vdd_info *vdd;
-
if (!voltdm || IS_ERR(voltdm)) {
pr_warning("%s: VDD specified does not exist!\n", __func__);
return;
}
- vdd = container_of(voltdm, struct omap_vdd_info, voltdm);
-
switch (voltscale_method) {
case VOLTSCALE_VPFORCEUPDATE:
- vdd->volt_scale = vp_forceupdate_scale_voltage;
+ voltdm->scale = omap_vp_forceupdate_scale;
return;
case VOLTSCALE_VCBYPASS:
- vdd->volt_scale = vc_bypass_scale_voltage;
+ voltdm->scale = omap_vc_bypass_scale;
return;
default:
pr_warning("%s: Trying to change the method of voltage scaling"
}
/**
- * omap_voltage_domain_lookup() - API to get the voltage domain pointer
- * @name: Name of the voltage domain
+ * omap_voltage_late_init() - Init the various voltage parameters
*
- * This API looks up in the global vdd_info struct for the
- * existence of voltage domain <name>. If it exists, the API returns
- * a pointer to the voltage domain structure corresponding to the
- * VDD<name>. Else retuns error pointer.
+ * This API is to be called in the later stages of the
+ * system boot to init the voltage controller and
+ * voltage processors.
*/
-struct voltagedomain *omap_voltage_domain_lookup(char *name)
+int __init omap_voltage_late_init(void)
{
- int i;
+ struct voltagedomain *voltdm;
- if (!vdd_info) {
- pr_err("%s: Voltage driver init not yet happened.Faulting!\n",
+ if (list_empty(&voltdm_list)) {
+ pr_err("%s: Voltage driver support not added\n",
__func__);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
- if (!name) {
- pr_err("%s: No name to get the votage domain!\n", __func__);
- return ERR_PTR(-EINVAL);
+ list_for_each_entry(voltdm, &voltdm_list, node) {
+ struct clk *sys_ck;
+
+ if (!voltdm->scalable)
+ continue;
+
+ sys_ck = clk_get(NULL, voltdm->sys_clk.name);
+ if (IS_ERR(sys_ck)) {
+ pr_warning("%s: Could not get sys clk.\n", __func__);
+ return -EINVAL;
+ }
+ voltdm->sys_clk.rate = clk_get_rate(sys_ck);
+ WARN_ON(!voltdm->sys_clk.rate);
+ clk_put(sys_ck);
+
+ if (voltdm->vc) {
+ voltdm->scale = omap_vc_bypass_scale;
+ omap_vc_init_channel(voltdm);
+ }
+
+ if (voltdm->vp) {
+ voltdm->scale = omap_vp_forceupdate_scale;
+ omap_vp_init(voltdm);
+ }
}
- for (i = 0; i < nr_scalable_vdd; i++) {
- if (!(strcmp(name, vdd_info[i]->voltdm.name)))
- return &vdd_info[i]->voltdm;
+ return 0;
+}
+
+static struct voltagedomain *_voltdm_lookup(const char *name)
+{
+ struct voltagedomain *voltdm, *temp_voltdm;
+
+ voltdm = NULL;
+
+ list_for_each_entry(temp_voltdm, &voltdm_list, node) {
+ if (!strcmp(name, temp_voltdm->name)) {
+ voltdm = temp_voltdm;
+ break;
+ }
}
- return ERR_PTR(-EINVAL);
+ return voltdm;
}
/**
- * omap_voltage_late_init() - Init the various voltage parameters
+ * voltdm_add_pwrdm - add a powerdomain to a voltagedomain
+ * @voltdm: struct voltagedomain * to add the powerdomain to
+ * @pwrdm: struct powerdomain * to associate with a voltagedomain
*
- * This API is to be called in the later stages of the
- * system boot to init the voltage controller and
- * voltage processors.
+ * Associate the powerdomain @pwrdm with a voltagedomain @voltdm. This
+ * enables the use of voltdm_for_each_pwrdm(). Returns -EINVAL if
+ * presented with invalid pointers; -ENOMEM if memory could not be allocated;
+ * or 0 upon success.
*/
-int __init omap_voltage_late_init(void)
+int voltdm_add_pwrdm(struct voltagedomain *voltdm, struct powerdomain *pwrdm)
{
- int i;
+ if (!voltdm || !pwrdm)
+ return -EINVAL;
- if (!vdd_info) {
- pr_err("%s: Voltage driver support not added\n",
- __func__);
+ pr_debug("voltagedomain: associating powerdomain %s with voltagedomain "
+ "%s\n", pwrdm->name, voltdm->name);
+
+ list_add(&pwrdm->voltdm_node, &voltdm->pwrdm_list);
+
+ return 0;
+}
+
+/**
+ * voltdm_for_each_pwrdm - call function for each pwrdm in a voltdm
+ * @voltdm: struct voltagedomain * to iterate over
+ * @fn: callback function *
+ *
+ * Call the supplied function @fn for each powerdomain in the
+ * voltagedomain @voltdm. Returns -EINVAL if presented with invalid
+ * pointers; or passes along the last return value of the callback
+ * function, which should be 0 for success or anything else to
+ * indicate failure.
+ */
+int voltdm_for_each_pwrdm(struct voltagedomain *voltdm,
+ int (*fn)(struct voltagedomain *voltdm,
+ struct powerdomain *pwrdm))
+{
+ struct powerdomain *pwrdm;
+ int ret = 0;
+
+ if (!fn)
return -EINVAL;
- }
- voltage_dir = debugfs_create_dir("voltage", NULL);
- if (IS_ERR(voltage_dir))
- pr_err("%s: Unable to create voltage debugfs main dir\n",
- __func__);
- for (i = 0; i < nr_scalable_vdd; i++) {
- if (omap_vdd_data_configure(vdd_info[i]))
- continue;
- omap_vc_init(vdd_info[i]);
- vp_init(vdd_info[i]);
- vdd_debugfs_init(vdd_info[i]);
+ list_for_each_entry(pwrdm, &voltdm->pwrdm_list, voltdm_node)
+ ret = (*fn)(voltdm, pwrdm);
+
+ return ret;
+}
+
+/**
+ * voltdm_for_each - call function on each registered voltagedomain
+ * @fn: callback function *
+ *
+ * Call the supplied function @fn for each registered voltagedomain.
+ * The callback function @fn can return anything but 0 to bail out
+ * early from the iterator. Returns the last return value of the
+ * callback function, which should be 0 for success or anything else
+ * to indicate failure; or -EINVAL if the function pointer is null.
+ */
+int voltdm_for_each(int (*fn)(struct voltagedomain *voltdm, void *user),
+ void *user)
+{
+ struct voltagedomain *temp_voltdm;
+ int ret = 0;
+
+ if (!fn)
+ return -EINVAL;
+
+ list_for_each_entry(temp_voltdm, &voltdm_list, node) {
+ ret = (*fn)(temp_voltdm, user);
+ if (ret)
+ break;
}
- return 0;
+ return ret;
}
-/* XXX document */
-int __init omap_voltage_early_init(s16 prm_mod, s16 prm_irqst_ocp_mod,
- struct omap_vdd_info *omap_vdd_array[],
- u8 omap_vdd_count)
+static int _voltdm_register(struct voltagedomain *voltdm)
{
- prm_mod_offs = prm_mod;
- prm_irqst_ocp_mod_offs = prm_irqst_ocp_mod;
- vdd_info = omap_vdd_array;
- nr_scalable_vdd = omap_vdd_count;
+ if (!voltdm || !voltdm->name)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&voltdm->pwrdm_list);
+ list_add(&voltdm->node, &voltdm_list);
+
+ pr_debug("voltagedomain: registered %s\n", voltdm->name);
+
return 0;
}
+
+/**
+ * voltdm_lookup - look up a voltagedomain by name, return a pointer
+ * @name: name of voltagedomain
+ *
+ * Find a registered voltagedomain by its name @name. Returns a pointer
+ * to the struct voltagedomain if found, or NULL otherwise.
+ */
+struct voltagedomain *voltdm_lookup(const char *name)
+{
+ struct voltagedomain *voltdm ;
+
+ if (!name)
+ return NULL;
+
+ voltdm = _voltdm_lookup(name);
+
+ return voltdm;
+}
+
+/**
+ * voltdm_init - set up the voltagedomain layer
+ * @voltdm_list: array of struct voltagedomain pointers to register
+ *
+ * Loop through the array of voltagedomains @voltdm_list, registering all
+ * that are available on the current CPU. If voltdm_list is supplied
+ * and not null, all of the referenced voltagedomains will be
+ * registered. No return value.
+ */
+void voltdm_init(struct voltagedomain **voltdms)
+{
+ struct voltagedomain **v;
+
+ if (voltdms) {
+ for (v = voltdms; *v; v++)
+ _voltdm_register(*v);
+ }
+}
#include <video/platform_lcd.h>
#include <linux/mmc/host.h>
+ #include <linux/export.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
S3C2410_MISCCR_USBSUSPND0 |
S3C2410_MISCCR_USBSUSPND1, 0x0);
- tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
- | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
- | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
+ tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
+ | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
+ | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
writel(tmp, S3C2410_UPLLCON);
gpio_request(S3C2410_GPC(0), "LCD power");
#include <linux/irq.h>
#include <linux/clk.h>
#include <linux/delay.h>
+ #include <linux/export.h>
#include <asm/sizes.h>
#include <asm/mach/pci.h>
#include <mach/clk.h>
#include <mach/powergate.h>
+#include "board.h"
+
/* register definitions */
#define AFI_OFFSET 0x3800
#define PADS_OFFSET 0x3000
static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE);
#define pmc_writel(value, reg) \
- __raw_writel(value, (u32)reg_pmc_base + (reg))
+ __raw_writel(value, reg_pmc_base + (reg))
#define pmc_readl(reg) \
- __raw_readl((u32)reg_pmc_base + (reg))
+ __raw_readl(reg_pmc_base + (reg))
/*
* Tegra2 defines 1GB in the AXI address map for PCIe.
struct tegra_pcie_port *pp;
if (nr >= tegra_pcie.num_ports)
- return 0;
+ return NULL;
pp = tegra_pcie.port + nr;
pp->root_bus_nr = sys->busnr;
#include <linux/gpio.h>
#include <linux/platform_device.h>
+ #include <linux/slab.h>
#include <linux/io.h>
#include <linux/pwm_backlight.h>
+#include <linux/slab.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
*/
#include <linux/kernel.h>
+ #include <linux/slab.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <plat/devs.h>
+#include <plat/sdhci.h>
void __init *s3c_set_platdata(void *pd, size_t pdsize,
struct platform_device *pdev)
pdev->dev.platform_data = npd;
return npd;
}
+
+void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd,
+ struct s3c_sdhci_platdata *set)
+{
+ set->cd_type = pd->cd_type;
+ set->ext_cd_init = pd->ext_cd_init;
+ set->ext_cd_cleanup = pd->ext_cd_cleanup;
+ set->ext_cd_gpio = pd->ext_cd_gpio;
+ set->ext_cd_gpio_invert = pd->ext_cd_gpio_invert;
+
+ if (pd->max_width)
+ set->max_width = pd->max_width;
+ if (pd->cfg_gpio)
+ set->cfg_gpio = pd->cfg_gpio;
+ if (pd->host_caps)
+ set->host_caps |= pd->host_caps;
+ if (pd->clk_type)
+ set->clk_type = pd->clk_type;
+}
#include <linux/dma-mapping.h>
#include <linux/gfp.h>
#include <linux/dma-debug.h>
+ #include <linux/export.h>
#include <asm/bug.h>
-#include <asm/cacheflush.h>
/*
* Generic direct DMA implementation
* can set archdata.dma_data to an unsigned long holding the offset. By
* default the offset is PCI_DRAM_OFFSET.
*/
-static inline void __dma_sync_page(unsigned long paddr, unsigned long offset,
- size_t size, enum dma_data_direction direction)
-{
- switch (direction) {
- case DMA_TO_DEVICE:
- case DMA_BIDIRECTIONAL:
- flush_dcache_range(paddr + offset, paddr + offset + size);
- break;
- case DMA_FROM_DEVICE:
- invalidate_dcache_range(paddr + offset, paddr + offset + size);
- break;
- default:
- BUG();
- }
-}
static unsigned long get_dma_direct_offset(struct device *dev)
{
/* FIXME this part of code is untested */
for_each_sg(sgl, sg, nents, i) {
sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
- __dma_sync_page(page_to_phys(sg_page(sg)), sg->offset,
+ __dma_sync(page_to_phys(sg_page(sg)) + sg->offset,
sg->length, direction);
}
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- __dma_sync_page(page_to_phys(page), offset, size, direction);
+ __dma_sync(page_to_phys(page) + offset, size, direction);
return page_to_phys(page) + offset + get_dma_direct_offset(dev);
}
* phys_to_virt is here because in __dma_sync_page is __virt_to_phys and
* dma_address is physical address
*/
- __dma_sync_page(dma_address, 0 , size, direction);
+ __dma_sync(dma_address, size, direction);
+}
+
+static inline void
+dma_direct_sync_single_for_cpu(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+ /*
+ * It's pointless to flush the cache as the memory segment
+ * is given to the CPU
+ */
+
+ if (direction == DMA_FROM_DEVICE)
+ __dma_sync(dma_handle, size, direction);
+}
+
+static inline void
+dma_direct_sync_single_for_device(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+ /*
+ * It's pointless to invalidate the cache if the device isn't
+ * supposed to write to the relevant region
+ */
+
+ if (direction == DMA_TO_DEVICE)
+ __dma_sync(dma_handle, size, direction);
+}
+
+static inline void
+dma_direct_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sgl, int nents,
+ enum dma_data_direction direction)
+{
+ struct scatterlist *sg;
+ int i;
+
+ /* FIXME this part of code is untested */
+ if (direction == DMA_FROM_DEVICE)
+ for_each_sg(sgl, sg, nents, i)
+ __dma_sync(sg->dma_address, sg->length, direction);
+}
+
+static inline void
+dma_direct_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sgl, int nents,
+ enum dma_data_direction direction)
+{
+ struct scatterlist *sg;
+ int i;
+
+ /* FIXME this part of code is untested */
+ if (direction == DMA_TO_DEVICE)
+ for_each_sg(sgl, sg, nents, i)
+ __dma_sync(sg->dma_address, sg->length, direction);
}
struct dma_map_ops dma_direct_ops = {
.dma_supported = dma_direct_dma_supported,
.map_page = dma_direct_map_page,
.unmap_page = dma_direct_unmap_page,
+ .sync_single_for_cpu = dma_direct_sync_single_for_cpu,
+ .sync_single_for_device = dma_direct_sync_single_for_device,
+ .sync_sg_for_cpu = dma_direct_sync_sg_for_cpu,
+ .sync_sg_for_device = dma_direct_sync_sg_for_device,
};
EXPORT_SYMBOL(dma_direct_ops);
#include <linux/ptrace.h>
#include <linux/smp.h>
#include <linux/stddef.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <asm/bugs.h>
#include <asm/cpu.h>
#include <asm/mipsregs.h>
#include <asm/system.h>
#include <asm/watch.h>
+ #include <asm/elf.h>
#include <asm/spram.h>
#include <asm/uaccess.h>
platform:
set_elf_platform(cpu, "octeon");
break;
+ case PRID_IMP_CAVIUM_CN61XX:
case PRID_IMP_CAVIUM_CN63XX:
+ case PRID_IMP_CAVIUM_CN66XX:
+ case PRID_IMP_CAVIUM_CN68XX:
c->cputype = CPU_CAVIUM_OCTEON2;
__cpu_name[cpu] = "Cavium Octeon II";
set_elf_platform(cpu, "octeon2");
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
+ #include <linux/export.h>
#include <asm/setup.h>
void (*pci_dma_dev_setup)(struct pci_dev *dev);
void (*pci_dma_bus_setup)(struct pci_bus *bus);
- /* Platform set_dma_mask override */
+ /* Platform set_dma_mask and dma_get_required_mask overrides */
int (*dma_set_mask)(struct device *dev, u64 dma_mask);
+ u64 (*dma_get_required_mask)(struct device *dev);
int (*probe)(void);
void (*setup_arch)(void); /* Optional, may be NULL */
* busses using the iommu infrastructure
*/
+ #include <linux/export.h>
#include <asm/iommu.h>
/*
return 1;
}
+static u64 dma_iommu_get_required_mask(struct device *dev)
+{
+ struct iommu_table *tbl = get_iommu_table_base(dev);
+ u64 mask;
+ if (!tbl)
+ return 0;
+
+ mask = 1ULL < (fls_long(tbl->it_offset + tbl->it_size) - 1);
+ mask += mask - 1;
+
+ return mask;
+}
+
struct dma_map_ops dma_iommu_ops = {
- .alloc_coherent = dma_iommu_alloc_coherent,
- .free_coherent = dma_iommu_free_coherent,
- .map_sg = dma_iommu_map_sg,
- .unmap_sg = dma_iommu_unmap_sg,
- .dma_supported = dma_iommu_dma_supported,
- .map_page = dma_iommu_map_page,
- .unmap_page = dma_iommu_unmap_page,
+ .alloc_coherent = dma_iommu_alloc_coherent,
+ .free_coherent = dma_iommu_free_coherent,
+ .map_sg = dma_iommu_map_sg,
+ .unmap_sg = dma_iommu_unmap_sg,
+ .dma_supported = dma_iommu_dma_supported,
+ .map_page = dma_iommu_map_page,
+ .unmap_page = dma_iommu_unmap_page,
+ .get_required_mask = dma_iommu_get_required_mask,
};
EXPORT_SYMBOL(dma_iommu_ops);
#include <linux/dma-debug.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
+ #include <linux/export.h>
#include <asm/bug.h>
#include <asm/abs_addr.h>
#include <asm/machdep.h>
#endif
}
+static u64 dma_direct_get_required_mask(struct device *dev)
+{
+ u64 end, mask;
+
+ end = memblock_end_of_DRAM() + get_dma_offset(dev);
+
+ mask = 1ULL << (fls64(end) - 1);
+ mask += mask - 1;
+
+ return mask;
+}
+
static inline dma_addr_t dma_direct_map_page(struct device *dev,
struct page *page,
unsigned long offset,
#endif
struct dma_map_ops dma_direct_ops = {
- .alloc_coherent = dma_direct_alloc_coherent,
- .free_coherent = dma_direct_free_coherent,
- .map_sg = dma_direct_map_sg,
- .unmap_sg = dma_direct_unmap_sg,
- .dma_supported = dma_direct_dma_supported,
- .map_page = dma_direct_map_page,
- .unmap_page = dma_direct_unmap_page,
+ .alloc_coherent = dma_direct_alloc_coherent,
+ .free_coherent = dma_direct_free_coherent,
+ .map_sg = dma_direct_map_sg,
+ .unmap_sg = dma_direct_unmap_sg,
+ .dma_supported = dma_direct_dma_supported,
+ .map_page = dma_direct_map_page,
+ .unmap_page = dma_direct_unmap_page,
+ .get_required_mask = dma_direct_get_required_mask,
#ifdef CONFIG_NOT_COHERENT_CACHE
.sync_single_for_cpu = dma_direct_sync_single,
.sync_single_for_device = dma_direct_sync_single,
}
EXPORT_SYMBOL(dma_set_mask);
+u64 dma_get_required_mask(struct device *dev)
+{
+ struct dma_map_ops *dma_ops = get_dma_ops(dev);
+
+ if (ppc_md.dma_get_required_mask)
+ return ppc_md.dma_get_required_mask(dev);
+
+ if (unlikely(dma_ops == NULL))
+ return 0;
+
+ if (dma_ops->get_required_mask)
+ return dma_ops->get_required_mask(dev);
+
+ return DMA_BIT_MASK(8 * sizeof(dma_addr_t));
+}
+EXPORT_SYMBOL_GPL(dma_get_required_mask);
+
static int __init dma_init(void)
{
dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
*/
#include <linux/init.h>
+ #include <linux/export.h>
#include <linux/console.h>
#include <linux/kobject.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/slab.h>
+ #include <linux/stat.h>
#include <linux/of_platform.h>
#include <asm/ibmebus.h>
#include <asm/abs_addr.h>
static int ibmebus_dma_supported(struct device *dev, u64 mask)
{
- return 1;
+ return mask == DMA_BIT_MASK(64);
+}
+
+static u64 ibmebus_dma_get_required_mask(struct device *dev)
+{
+ return DMA_BIT_MASK(64);
}
static struct dma_map_ops ibmebus_dma_ops = {
- .alloc_coherent = ibmebus_alloc_coherent,
- .free_coherent = ibmebus_free_coherent,
- .map_sg = ibmebus_map_sg,
- .unmap_sg = ibmebus_unmap_sg,
- .dma_supported = ibmebus_dma_supported,
- .map_page = ibmebus_map_page,
- .unmap_page = ibmebus_unmap_page,
+ .alloc_coherent = ibmebus_alloc_coherent,
+ .free_coherent = ibmebus_free_coherent,
+ .map_sg = ibmebus_map_sg,
+ .unmap_sg = ibmebus_unmap_sg,
+ .dma_supported = ibmebus_dma_supported,
+ .get_required_mask = ibmebus_dma_get_required_mask,
+ .map_page = ibmebus_map_page,
+ .unmap_page = ibmebus_unmap_page,
};
static int ibmebus_match_path(struct device *dev, void *data)
#include <linux/string.h>
#include <linux/init.h>
#include <linux/bootmem.h>
+ #include <linux/export.h>
#include <linux/of_address.h>
#include <linux/of_pci.h>
#include <linux/mm.h>
if (mode == PCI_PROBE_NORMAL)
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+
+ /* Configure PCI Express settings */
+ if (bus && !pci_has_flag(PCI_PROBE_ONLY)) {
+ struct pci_bus *child;
+ list_for_each_entry(child, &bus->children, node) {
+ struct pci_dev *self = child->self;
+ if (!self)
+ continue;
+ pcie_bus_configure_settings(child, self->pcie_mpss);
+ }
+ }
}
static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
#include <linux/delay.h>
#include <linux/initrd.h>
#include <linux/bitops.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/kexec.h>
#include <linux/debugfs.h>
#include <linux/irq.h>
#include <asm/pci-bridge.h>
#include <asm/phyp_dump.h>
#include <asm/kexec.h>
+#include <asm/opal.h>
+
#include <mm/mmu_decl.h>
#ifdef DEBUG
of_scan_flat_dt(early_init_dt_scan_rtas, NULL);
#endif
+#ifdef CONFIG_PPC_POWERNV
+ /* Some machines might need OPAL info for debugging, grab it now. */
+ of_scan_flat_dt(early_init_dt_scan_opal, NULL);
+#endif
+
#ifdef CONFIG_PHYP_DUMP
/* scan tree to see if dump occurred during last boot */
of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
#endif
+ /* Pre-initialize the cmd_line with the content of boot_commmand_line,
+ * which will be empty except when the content of the variable has
+ * been overriden by a bootloading mechanism. This happens typically
+ * with HAL takeover
+ */
+ strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
+
/* Retrieve various informations from the /chosen node of the
* device-tree, including the platform type, initrd location and
* size, TCE reserve, and more ...
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
- setup_initial_memory_limit(memstart_addr, first_memblock_size);
/* Save command line for /proc/cmdline and then parse parameters */
strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
parse_early_param();
+ /* make sure we've parsed cmdline for mem= before this */
+ if (memory_limit)
+ first_memblock_size = min(first_memblock_size, memory_limit);
+ setup_initial_memory_limit(memstart_addr, first_memblock_size);
/* Reserve MEMBLOCK regions used by kernel, initrd, dt, etc... */
memblock_reserve(PHYSICAL_START, __pa(klimit) - PHYSICAL_START);
/* If relocatable, reserve first 32k for interrupt vectors etc. */
#include <linux/seccomp.h>
#include <linux/audit.h>
#include <trace/syscall.h>
- #ifdef CONFIG_PPC32
- #include <linux/module.h>
- #endif
#include <linux/hw_breakpoint.h>
#include <linux/perf_event.h>
if (index < PT_FPR0) {
tmp = ptrace_get_reg(child, (int) index);
} else {
+ unsigned int fpidx = index - PT_FPR0;
+
flush_fp_to_thread(child);
- tmp = ((unsigned long *)child->thread.fpr)
- [TS_FPRWIDTH * (index - PT_FPR0)];
+ if (fpidx < (PT_FPSCR - PT_FPR0))
+ tmp = ((unsigned long *)child->thread.fpr)
+ [fpidx * TS_FPRWIDTH];
+ else
+ tmp = child->thread.fpscr.val;
}
ret = put_user(tmp, datalp);
break;
if (index < PT_FPR0) {
ret = ptrace_put_reg(child, index, data);
} else {
+ unsigned int fpidx = index - PT_FPR0;
+
flush_fp_to_thread(child);
- ((unsigned long *)child->thread.fpr)
- [TS_FPRWIDTH * (index - PT_FPR0)] = data;
+ if (fpidx < (PT_FPSCR - PT_FPR0))
+ ((unsigned long *)child->thread.fpr)
+ [fpidx * TS_FPRWIDTH] = data;
+ else
+ child->thread.fpscr.val = data;
ret = 0;
}
break;
#undef DEBUG
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/init.h>
DBG(" -> initialize_cache_info()\n");
- for (np = NULL; (np = of_find_node_by_type(np, "cpu"));) {
+ for_each_node_by_type(np, "cpu") {
num_cpus += 1;
- /* We're assuming *all* of the CPUs have the same
+ /*
+ * We're assuming *all* of the CPUs have the same
* d-cache and i-cache sizes... -Peter
*/
-
- if ( num_cpus == 1 ) {
+ if (num_cpus == 1) {
const u32 *sizep, *lsizep;
u32 size, lsize;
sizep = of_get_property(np, "d-cache-size", NULL);
if (sizep != NULL)
size = *sizep;
- lsizep = of_get_property(np, "d-cache-block-size", NULL);
+ lsizep = of_get_property(np, "d-cache-block-size",
+ NULL);
/* fallback if block size missing */
if (lsizep == NULL)
- lsizep = of_get_property(np, "d-cache-line-size", NULL);
+ lsizep = of_get_property(np,
+ "d-cache-line-size",
+ NULL);
if (lsizep != NULL)
lsize = *lsizep;
if (sizep == 0 || lsizep == 0)
sizep = of_get_property(np, "i-cache-size", NULL);
if (sizep != NULL)
size = *sizep;
- lsizep = of_get_property(np, "i-cache-block-size", NULL);
+ lsizep = of_get_property(np, "i-cache-block-size",
+ NULL);
if (lsizep == NULL)
- lsizep = of_get_property(np, "i-cache-line-size", NULL);
+ lsizep = of_get_property(np,
+ "i-cache-line-size",
+ NULL);
if (lsizep != NULL)
lsize = *lsizep;
if (sizep == 0 || lsizep == 0)
#undef DEBUG
#include <linux/kernel.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
#define get_idle_for_cpu(x) (per_cpu(idle_thread_array, x))
#define set_idle_for_cpu(x, p) (per_cpu(idle_thread_array, x) = (p))
+
+/* State of each CPU during hotplug phases */
+static DEFINE_PER_CPU(int, cpu_state) = { 0 };
+
#else
static struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
#define get_idle_for_cpu(x) (idle_thread_array[(x)])
* cpu_start field to become non-zero After we set cpu_start,
* the processor will continue on to secondary_start
*/
- paca[nr].cpu_start = 1;
- smp_mb();
+ if (!paca[nr].cpu_start) {
+ paca[nr].cpu_start = 1;
+ smp_mb();
+ return 0;
+ }
+
+#ifdef CONFIG_HOTPLUG_CPU
+ /*
+ * Ok it's not there, so it might be soft-unplugged, let's
+ * try to bring it back
+ */
+ per_cpu(cpu_state, nr) = CPU_UP_PREPARE;
+ smp_wmb();
+ smp_send_reschedule(nr);
+#endif /* CONFIG_HOTPLUG_CPU */
return 0;
}
-#endif
+#endif /* CONFIG_PPC64 */
static irqreturn_t call_function_action(int irq, void *data)
{
}
#ifdef CONFIG_HOTPLUG_CPU
-/* State of each CPU during hotplug phases */
-static DEFINE_PER_CPU(int, cpu_state) = { 0 };
int generic_cpu_disable(void)
{
{
per_cpu(cpu_state, cpu) = CPU_DEAD;
}
+
+int generic_check_cpu_restart(unsigned int cpu)
+{
+ return per_cpu(cpu_state, cpu) == CPU_UP_PREPARE;
+}
#endif
struct create_idle {
*/
#include <linux/types.h>
+ #include <linux/stat.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/console.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/kobject.h>
return dma_iommu_ops.dma_supported(dev, mask);
}
-struct dma_map_ops vio_dma_mapping_ops = {
- .alloc_coherent = vio_dma_iommu_alloc_coherent,
- .free_coherent = vio_dma_iommu_free_coherent,
- .map_sg = vio_dma_iommu_map_sg,
- .unmap_sg = vio_dma_iommu_unmap_sg,
- .map_page = vio_dma_iommu_map_page,
- .unmap_page = vio_dma_iommu_unmap_page,
- .dma_supported = vio_dma_iommu_dma_supported,
+static u64 vio_dma_get_required_mask(struct device *dev)
+{
+ return dma_iommu_ops.get_required_mask(dev);
+}
+struct dma_map_ops vio_dma_mapping_ops = {
+ .alloc_coherent = vio_dma_iommu_alloc_coherent,
+ .free_coherent = vio_dma_iommu_free_coherent,
+ .map_sg = vio_dma_iommu_map_sg,
+ .unmap_sg = vio_dma_iommu_unmap_sg,
+ .map_page = vio_dma_iommu_map_page,
+ .unmap_page = vio_dma_iommu_unmap_page,
+ .dma_supported = vio_dma_iommu_dma_supported,
+ .get_required_mask = vio_dma_get_required_mask,
};
/**
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/sysctl.h>
+ #include <linux/export.h>
#include <linux/ctype.h>
#include <linux/cache.h>
#include <linux/init.h>
int mmu_highuser_ssize = MMU_SEGSIZE_256M;
u16 mmu_slb_size = 64;
EXPORT_SYMBOL_GPL(mmu_slb_size);
-#ifdef CONFIG_HUGETLB_PAGE
-unsigned int HPAGE_SHIFT;
-#endif
#ifdef CONFIG_PPC_64K_PAGES
int mmu_ci_restrictions;
#endif
}
#ifdef CONFIG_MEMORY_HOTPLUG
-void create_section_mapping(unsigned long start, unsigned long end)
+int create_section_mapping(unsigned long start, unsigned long end)
{
- BUG_ON(htab_bolt_mapping(start, end, __pa(start),
+ return htab_bolt_mapping(start, end, __pa(start),
pgprot_val(PAGE_KERNEL), mmu_linear_psize,
- mmu_kernel_ssize));
+ mmu_kernel_ssize);
}
int remove_section_mapping(unsigned long start, unsigned long end)
*
*/
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
pgdata = NODE_DATA(nid);
start = (unsigned long)__va(start);
- create_section_mapping(start, start + size);
+ if (create_section_mapping(start, start + size))
+ return -EINVAL;
/* this should work for most non-highmem platforms */
zone = pgdata->node_zones;
return;
hash_preload(vma->vm_mm, address, access, trap);
#endif /* CONFIG_PPC_STD_MMU */
+#if (defined(CONFIG_PPC_BOOK3E_64) || defined(CONFIG_PPC_FSL_BOOK3E)) \
+ && defined(CONFIG_HUGETLB_PAGE)
+ if (is_vm_hugetlb_page(vma))
+ book3e_hugetlb_preload(vma->vm_mm, address, *ptep);
+#endif
}
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/gfp.h>
#include <linux/slab.h>
if (!mm || !acop)
return -EINVAL;
- /* We need to make sure mm_users doesn't change */
- down_read(&mm->mmap_sem);
+ /* The page_table_lock ensures mm_users won't change under us */
+ spin_lock(&mm->page_table_lock);
spin_lock(mm->context.cop_lockp);
if (mm->context.cop_pid == COP_PID_NONE) {
out:
spin_unlock(mm->context.cop_lockp);
- up_read(&mm->mmap_sem);
+ spin_unlock(&mm->page_table_lock);
return ret;
}
if (WARN_ON_ONCE(!mm))
return;
- /* We need to make sure mm_users doesn't change */
- down_read(&mm->mmap_sem);
+ /* The page_table_lock ensures mm_users won't change under us */
+ spin_lock(&mm->page_table_lock);
spin_lock(mm->context.cop_lockp);
mm->context.acop &= ~acop;
}
spin_unlock(mm->context.cop_lockp);
- up_read(&mm->mmap_sem);
+ spin_unlock(&mm->page_table_lock);
}
EXPORT_SYMBOL_GPL(drop_cop);
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/cpu.h>
#include <linux/notifier.h>
static int __init parse_numa_properties(void)
{
- struct device_node *cpu = NULL;
- struct device_node *memory = NULL;
+ struct device_node *memory;
int default_nid = 0;
unsigned long i;
* each node to be onlined must have NODE_DATA etc backing it.
*/
for_each_present_cpu(i) {
+ struct device_node *cpu;
int nid;
cpu = of_get_cpu_node(i, NULL);
}
get_n_mem_cells(&n_mem_addr_cells, &n_mem_size_cells);
- memory = NULL;
- while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
+
+ for_each_node_by_type(memory, "memory") {
unsigned long start;
unsigned long size;
int nid;
}
/*
- * Now do the same thing for each MEMBLOCK listed in the ibm,dynamic-memory
- * property in the ibm,dynamic-reconfiguration-memory node.
+ * Now do the same thing for each MEMBLOCK listed in the
+ * ibm,dynamic-memory property in the
+ * ibm,dynamic-reconfiguration-memory node.
*/
memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
if (memory)
*/
int hot_add_node_scn_to_nid(unsigned long scn_addr)
{
- struct device_node *memory = NULL;
+ struct device_node *memory;
int nid = -1;
- while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
+ for_each_node_by_type(memory, "memory") {
unsigned long start, size;
int ranges;
const unsigned int *memcell_buf;
break;
}
- of_node_put(memory);
if (nid >= 0)
break;
}
+ of_node_put(memory);
+
return nid;
}
*/
#include <linux/kernel.h>
+ #include <linux/export.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/highmem.h>
#include <linux/spinlock.h>
#include <linux/memblock.h>
#include <linux/of_fdt.h>
+#include <linux/hugetlb.h>
#include <asm/tlbflush.h>
#include <asm/tlb.h>
#include <asm/code-patching.h>
+#include <asm/hugetlb.h>
#include "mmu_decl.h"
-#ifdef CONFIG_PPC_BOOK3E
+/*
+ * This struct lists the sw-supported page sizes. The hardawre MMU may support
+ * other sizes not listed here. The .ind field is only used on MMUs that have
+ * indirect page table entries.
+ */
+#ifdef CONFIG_PPC_BOOK3E_MMU
+#ifdef CONFIG_FSL_BOOKE
+struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT] = {
+ [MMU_PAGE_4K] = {
+ .shift = 12,
+ .enc = BOOK3E_PAGESZ_4K,
+ },
+ [MMU_PAGE_4M] = {
+ .shift = 22,
+ .enc = BOOK3E_PAGESZ_4M,
+ },
+ [MMU_PAGE_16M] = {
+ .shift = 24,
+ .enc = BOOK3E_PAGESZ_16M,
+ },
+ [MMU_PAGE_64M] = {
+ .shift = 26,
+ .enc = BOOK3E_PAGESZ_64M,
+ },
+ [MMU_PAGE_256M] = {
+ .shift = 28,
+ .enc = BOOK3E_PAGESZ_256M,
+ },
+ [MMU_PAGE_1G] = {
+ .shift = 30,
+ .enc = BOOK3E_PAGESZ_1GB,
+ },
+};
+#else
struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT] = {
[MMU_PAGE_4K] = {
.shift = 12,
.enc = BOOK3E_PAGESZ_1GB,
},
};
+#endif /* CONFIG_FSL_BOOKE */
+
static inline int mmu_get_tsize(int psize)
{
return mmu_psize_defs[psize].enc;
/* This isn't used on !Book3E for now */
return 0;
}
-#endif
+#endif /* CONFIG_PPC_BOOK3E_MMU */
/* The variables below are currently only used on 64-bit Book3E
* though this will probably be made common with other nohash
void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
+#ifdef CONFIG_HUGETLB_PAGE
+ if (is_vm_hugetlb_page(vma))
+ flush_hugetlb_page(vma, vmaddr);
+#endif
+
__flush_tlb_page(vma ? vma->vm_mm : NULL, vmaddr,
mmu_get_tsize(mmu_virtual_psize), 0);
}
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
- /* On Embedded 64-bit, we adjust the RMA size to match
+ /* On non-FSL Embedded 64-bit, we adjust the RMA size to match
* the bolted TLB entry. We know for now that only 1G
* entries are supported though that may eventually
- * change. We crop it to the size of the first MEMBLOCK to
+ * change.
+ *
+ * on FSL Embedded 64-bit, we adjust the RMA size to match the
+ * first bolted TLB entry size. We still limit max to 1G even if
+ * the TLB could cover more. This is due to what the early init
+ * code is setup to do.
+ *
+ * We crop it to the size of the first MEMBLOCK to
* avoid going over total available memory just in case...
*/
- ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);
+#ifdef CONFIG_PPC_FSL_BOOK3E
+ if (mmu_has_feature(MMU_FTR_TYPE_FSL_E)) {
+ unsigned long linear_sz;
+ linear_sz = calc_cam_sz(first_memblock_size, PAGE_OFFSET,
+ first_memblock_base);
+ ppc64_rma_size = min_t(u64, linear_sz, 0x40000000);
+ } else
+#endif
+ ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);
/* Finally limit subsequent allocations */
memblock_set_current_limit(first_memblock_base + ppc64_rma_size);
#include <linux/kernel.h>
#include <linux/init.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/slab.h>
return mask >= DMA_BIT_MASK(32);
}
+static u64 ps3_dma_get_required_mask(struct device *_dev)
+{
+ return DMA_BIT_MASK(32);
+}
+
static struct dma_map_ops ps3_sb_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
.map_sg = ps3_sb_map_sg,
.unmap_sg = ps3_sb_unmap_sg,
.dma_supported = ps3_dma_supported,
+ .get_required_mask = ps3_dma_get_required_mask,
.map_page = ps3_sb_map_page,
.unmap_page = ps3_unmap_page,
};
.map_sg = ps3_ioc0_map_sg,
.unmap_sg = ps3_ioc0_unmap_sg,
.dma_supported = ps3_dma_supported,
+ .get_required_mask = ps3_dma_get_required_mask,
.map_page = ps3_ioc0_map_page,
.unmap_page = ps3_unmap_page,
};
*/
#include <linux/delay.h>
+ #include <linux/sched.h> /* for init_mm */
#include <linux/init.h>
#include <linux/list.h>
#include <linux/pci.h>
#include <linux/rbtree.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+ #include <linux/export.h>
#include <linux/of.h>
#include <linux/atomic.h>
static int __init eeh_init_proc(void)
{
if (machine_is(pseries))
- proc_create("ppc64/eeh", 0, NULL, &proc_eeh_operations);
+ proc_create("powerpc/eeh", 0, NULL, &proc_eeh_operations);
return 0;
}
__initcall(eeh_init_proc);
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
+ #include <linux/sched.h> /* for show_stack */
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
if (ret) {
dev_info(&dev->dev, "failed to map direct window for %s: %d\n",
dn->full_name, ret);
- goto out_clear_window;
+ goto out_free_window;
}
ret = prom_add_property(pdn, win64);
if (ret) {
dev_err(&dev->dev, "unable to add dma window property for %s: %d",
pdn->full_name, ret);
- goto out_clear_window;
+ goto out_free_window;
}
window->device = pdn;
dma_addr = of_read_number(&create.addr_hi, 2);
goto out_unlock;
+out_free_window:
+ kfree(window);
+
out_clear_window:
remove_ddw(pdn);
return 0;
}
+static u64 dma_get_required_mask_pSeriesLP(struct device *dev)
+{
+ if (!dev->dma_mask)
+ return 0;
+
+ if (!disable_ddw && dev_is_pci(dev)) {
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct device_node *dn;
+
+ dn = pci_device_to_OF_node(pdev);
+
+ /* search upwards for ibm,dma-window */
+ for (; dn && PCI_DN(dn) && !PCI_DN(dn)->iommu_table;
+ dn = dn->parent)
+ if (of_get_property(dn, "ibm,dma-window", NULL))
+ break;
+ /* if there is a ibm,ddw-applicable property require 64 bits */
+ if (dn && PCI_DN(dn) &&
+ of_get_property(dn, "ibm,ddw-applicable", NULL))
+ return DMA_BIT_MASK(64);
+ }
+
+ return dma_iommu_ops.get_required_mask(dev);
+}
+
#else /* CONFIG_PCI */
#define pci_dma_bus_setup_pSeries NULL
#define pci_dma_dev_setup_pSeries NULL
#define pci_dma_bus_setup_pSeriesLP NULL
#define pci_dma_dev_setup_pSeriesLP NULL
#define dma_set_mask_pSeriesLP NULL
+#define dma_get_required_mask_pSeriesLP NULL
#endif /* !CONFIG_PCI */
static int iommu_mem_notifier(struct notifier_block *nb, unsigned long action,
ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pSeriesLP;
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pSeriesLP;
ppc_md.dma_set_mask = dma_set_mask_pSeriesLP;
+ ppc_md.dma_get_required_mask = dma_get_required_mask_pSeriesLP;
} else {
ppc_md.tce_build = tce_build_pSeries;
ppc_md.tce_free = tce_free_pSeries;
*
* Author: Scott Wood <scottwood@freescale.com>
*
- * Copyright 2007 Freescale Semiconductor, Inc.
+ * Copyright 2007-2008,2010 Freescale Semiconductor, Inc.
*
* Some parts derived from commproc.c/cpm2_common.c, which is:
* Copyright (c) 1997 Dan error_act (dmalek@jlc.net)
#include <linux/init.h>
#include <linux/of_device.h>
#include <linux/spinlock.h>
+ #include <linux/export.h>
#include <linux/of.h>
#include <linux/slab.h>
spin_lock_irqsave(&cpm_muram_lock, flags);
cpm_muram_info.alignment = align;
start = rh_alloc(&cpm_muram_info, size, "commproc");
+ memset(cpm_muram_addr(start), 0, size);
spin_unlock_irqrestore(&cpm_muram_lock, flags);
return start;
*/
#include <linux/init.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/types.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
return 0;
err:
iounmap(priv->regs_win);
+ release_resource(&port->iores);
err_res:
kfree(priv);
err_priv:
#include <linux/delay.h>
#include <linux/kallsyms.h>
#include <linux/cpumask.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/sysrq.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
static inline int unrecoverable_excp(struct pt_regs *regs)
{
-#ifdef CONFIG_4xx
- /* We have no MSR_RI bit on 4xx, so we simply return false */
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOK3E)
+ /* We have no MSR_RI bit on 4xx or Book3e, so we simply return false */
return 0;
#else
return ((regs->msr & MSR_RI) == 0);
#include <linux/cpumask.h>
#include <linux/init.h>
#include <linux/percpu.h>
+#include <linux/topology.h>
#include <linux/node.h>
#include <linux/nodemask.h>
+ #include <linux/export.h>
static DEFINE_PER_CPU(struct cpu, cpu_devices);
#include <linux/io.h>
#include <linux/memblock.h>
#include <linux/dma-mapping.h>
+ #include <linux/export.h>
#include <asm/mmu_context.h>
#include <asm/mmzone.h>
#include <asm/kexec.h>
static void __init early_reserve_mem(void)
{
unsigned long start_pfn;
+ u32 zero_base = (u32)__MEMORY_START + (u32)PHYSICAL_OFFSET;
+ u32 start = zero_base + (u32)CONFIG_ZERO_PAGE_OFFSET;
/*
* Partially used pages are not usable - thus
* this catches the (definitely buggy) case of us accidentally
* initializing the bootmem allocator with an invalid RAM area.
*/
- memblock_reserve(__MEMORY_START + CONFIG_ZERO_PAGE_OFFSET,
- (PFN_PHYS(start_pfn) + PAGE_SIZE - 1) -
- (__MEMORY_START + CONFIG_ZERO_PAGE_OFFSET));
+ memblock_reserve(start, (PFN_PHYS(start_pfn) + PAGE_SIZE - 1) - start);
/*
* Reserve physical pages below CONFIG_ZERO_PAGE_OFFSET.
*/
if (CONFIG_ZERO_PAGE_OFFSET != 0)
- memblock_reserve(__MEMORY_START, CONFIG_ZERO_PAGE_OFFSET);
+ memblock_reserve(zero_base, CONFIG_ZERO_PAGE_OFFSET);
/*
* Handle additional early reservations
*
*/
+ #include <linux/module.h>
#include <crypto/aes.h>
+#include <asm/aes.h>
asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/debugfs.h>
-#include <linux/edac_mce.h>
#include <linux/irq_work.h>
+ #include <linux/export.h>
#include <asm/processor.h>
#include <asm/mce.h>
void mce_log(struct mce *mce)
{
unsigned next, entry;
+ int ret = 0;
/* Emit the trace record: */
trace_mce_record(mce);
+ ret = atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
+ if (ret == NOTIFY_STOP)
+ return;
+
mce->finished = 0;
wmb();
for (;;) {
entry = rcu_dereference_check_mce(mcelog.next);
for (;;) {
- /*
- * If edac_mce is enabled, it will check the error type
- * and will process it, if it is a known error.
- * Otherwise, the error will be sent through mcelog
- * interface
- */
- if (edac_mce_parse(mce))
- return;
/*
* When the buffer fills up discard new entries.
* Don't get the IP here because it's unlikely to
* have anything to do with the actual error location.
*/
- if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce) {
+ if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce)
mce_log(&m);
- atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, &m);
- }
/*
* Clear state for this bank.
#include <linux/capability.h>
#include <linux/blkdev.h>
+ #include <linux/export.h>
#include <linux/gfp.h>
#include <linux/blkpg.h>
#include <linux/hdreg.h>
struct gendisk *disk = bdev->bd_disk;
int res;
- if (!disk_partitionable(disk) || bdev != bdev->bd_contains)
+ if (!disk_part_scan_enabled(disk) || bdev != bdev->bd_contains)
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
*/
#include <linux/sched.h>
+ #include <linux/export.h>
#include <linux/pm_runtime.h>
#include <trace/events/rpm.h>
#include "power.h"
void update_pm_runtime_accounting(struct device *dev)
{
unsigned long now = jiffies;
- int delta;
+ unsigned long delta;
delta = now - dev->power.accounting_timestamp;
- if (delta < 0)
- delta = 0;
-
dev->power.accounting_timestamp = now;
if (dev->power.disable_depth > 0)
* the callback was running then carry it out, otherwise send an idle
* notification for its parent (if the suspend succeeded and both
* ignore_children of parent->power and irq_safe of dev->power are not set).
+ * If ->runtime_suspend failed with -EAGAIN or -EBUSY, and if the RPM_AUTO
+ * flag is set and the next autosuspend-delay expiration time is in the
+ * future, schedule another autosuspend attempt.
*
* This function must be called under dev->power.lock with interrupts disabled.
*/
if (retval) {
__update_runtime_status(dev, RPM_ACTIVE);
dev->power.deferred_resume = false;
- if (retval == -EAGAIN || retval == -EBUSY)
+ if (retval == -EAGAIN || retval == -EBUSY) {
dev->power.runtime_error = 0;
- else
+
+ /*
+ * If the callback routine failed an autosuspend, and
+ * if the last_busy time has been updated so that there
+ * is a new autosuspend expiration time, automatically
+ * reschedule another autosuspend.
+ */
+ if ((rpmflags & RPM_AUTO) &&
+ pm_runtime_autosuspend_expiration(dev) != 0)
+ goto repeat;
+ } else {
pm_runtime_cancel_pending(dev);
+ }
wake_up_all(&dev->power.wait_queue);
goto out;
}
#include <linux/genhd.h>
#include <linux/netdevice.h>
#include <linux/mutex.h>
+ #include <linux/export.h>
#include "aoe.h"
static DEFINE_MUTEX(aoeblk_mutex);
return 0;
}
-static int
+static void
aoeblk_make_request(struct request_queue *q, struct bio *bio)
{
struct sk_buff_head queue;
if (bio == NULL) {
printk(KERN_ERR "aoe: bio is NULL\n");
BUG();
- return 0;
+ return;
}
d = bio->bi_bdev->bd_disk->private_data;
if (d == NULL) {
printk(KERN_ERR "aoe: bd_disk->private_data is NULL\n");
BUG();
bio_endio(bio, -ENXIO);
- return 0;
+ return;
} else if (bio->bi_io_vec == NULL) {
printk(KERN_ERR "aoe: bi_io_vec is NULL\n");
BUG();
bio_endio(bio, -ENXIO);
- return 0;
+ return;
}
buf = mempool_alloc(d->bufpool, GFP_NOIO);
if (buf == NULL) {
printk(KERN_INFO "aoe: buf allocation failure\n");
bio_endio(bio, -ENOMEM);
- return 0;
+ return;
}
memset(buf, 0, sizeof(*buf));
INIT_LIST_HEAD(&buf->bufs);
spin_unlock_irqrestore(&d->lock, flags);
mempool_free(buf, d->bufpool);
bio_endio(bio, -ENXIO);
- return 0;
+ return;
}
list_add_tail(&buf->bufs, &d->bufq);
spin_unlock_irqrestore(&d->lock, flags);
aoenet_xmit(&queue);
-
- return 0;
}
static int
#include <linux/blkdev.h>
#include <linux/delay.h>
+ #include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
return next;
}
-static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
+static void ps3vram_make_request(struct request_queue *q, struct bio *bio)
{
struct ps3_system_bus_device *dev = q->queuedata;
struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
spin_unlock_irq(&priv->lock);
if (busy)
- return 0;
+ return;
do {
bio = ps3vram_do_bio(dev, bio);
} while (bio);
-
- return 0;
}
static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
+ #include <linux/module.h>
#include <linux/virtio.h>
#include <linux/virtio_blk.h>
#include <linux/scatterlist.h>
#include <linux/string_helpers.h>
#include <scsi/scsi_cmnd.h>
+#include <linux/idr.h>
#define PART_BITS 4
-static int major, index;
+static int major;
+static DEFINE_IDA(vd_index_ida);
+
struct workqueue_struct *virtblk_wq;
struct virtio_blk
/* What host tells us, plus 2 for header & tailer. */
unsigned int sg_elems;
+ /* Ida index - used to track minor number allocations. */
+ int index;
+
/* Scatterlist: can be too big for stack. */
struct scatterlist sg[/*sg_elems*/];
};
return index << PART_BITS;
}
+static int minor_to_index(int minor)
+{
+ return minor >> PART_BITS;
+}
+
static ssize_t virtblk_serial_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
{
struct virtio_blk *vblk;
struct request_queue *q;
- int err;
+ int err, index;
u64 cap;
u32 v, blk_size, sg_elems, opt_io_size;
u16 min_io_size;
u8 physical_block_exp, alignment_offset;
- if (index_to_minor(index) >= 1 << MINORBITS)
- return -ENOSPC;
+ err = ida_simple_get(&vd_index_ida, 0, minor_to_index(1 << MINORBITS),
+ GFP_KERNEL);
+ if (err < 0)
+ goto out;
+ index = err;
/* We need to know how many segments before we allocate. */
err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX,
sizeof(vblk->sg[0]) * sg_elems, GFP_KERNEL);
if (!vblk) {
err = -ENOMEM;
- goto out;
+ goto out_free_index;
}
INIT_LIST_HEAD(&vblk->reqs);
vblk->disk->private_data = vblk;
vblk->disk->fops = &virtblk_fops;
vblk->disk->driverfs_dev = &vdev->dev;
- index++;
+ vblk->index = index;
/* configure queue flush support */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
vdev->config->del_vqs(vdev);
out_free_vblk:
kfree(vblk);
+out_free_index:
+ ida_simple_remove(&vd_index_ida, index);
out:
return err;
}
static void __devexit virtblk_remove(struct virtio_device *vdev)
{
struct virtio_blk *vblk = vdev->priv;
+ int index = vblk->index;
flush_work(&vblk->config_work);
mempool_destroy(vblk->pool);
vdev->config->del_vqs(vdev);
kfree(vblk);
+ ida_simple_remove(&vd_index_ida, index);
}
static const struct virtio_device_id id_table[] = {
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
+ #include <linux/export.h>
struct ttyprintk_port {
struct tty_port port;
.ioctl = tpk_ioctl,
};
-struct tty_port_operations null_ops = { };
+static struct tty_port_operations null_ops = { };
static struct tty_driver *ttyprintk_driver;
*/
#include <linux/cdev.h>
#include <linux/debugfs.h>
+#include <linux/completion.h>
#include <linux/device.h>
#include <linux/err.h>
+#include <linux/freezer.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/virtio_console.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
+ #include <linux/module.h>
#include "../tty/hvc/hvc_console.h"
/*
static struct ports_driver_data pdrvdata;
DEFINE_SPINLOCK(pdrvdata_lock);
+DECLARE_COMPLETION(early_console_added);
/* This struct holds information that's relevant only for console ports */
struct console {
int chr_major;
};
+struct port_stats {
+ unsigned long bytes_sent, bytes_received, bytes_discarded;
+};
+
/* This struct holds the per-port data */
struct port {
/* Next port in the list, head is in the ports_device */
/* File in the debugfs directory that exposes this port's information */
struct dentry *debugfs_file;
+ /*
+ * Keep count of the bytes sent, received and discarded for
+ * this port for accounting and debugging purposes. These
+ * counts are not reset across port open / close events.
+ */
+ struct port_stats stats;
+
/*
* The entries in this struct will be valid if this port is
* hooked up to an hvc console
}
/* Callers should take appropriate locks */
-static void *get_inbuf(struct port *port)
+static struct port_buffer *get_inbuf(struct port *port)
{
struct port_buffer *buf;
- struct virtqueue *vq;
unsigned int len;
- vq = port->in_vq;
- buf = virtqueue_get_buf(vq, &len);
+ if (port->inbuf)
+ return port->inbuf;
+
+ buf = virtqueue_get_buf(port->in_vq, &len);
if (buf) {
buf->len = len;
buf->offset = 0;
+ port->stats.bytes_received += len;
}
return buf;
}
static void discard_port_data(struct port *port)
{
struct port_buffer *buf;
- struct virtqueue *vq;
- unsigned int len;
- int ret;
+ unsigned int err;
if (!port->portdev) {
/* Device has been unplugged. vqs are already gone. */
return;
}
- vq = port->in_vq;
- if (port->inbuf)
- buf = port->inbuf;
- else
- buf = virtqueue_get_buf(vq, &len);
+ buf = get_inbuf(port);
- ret = 0;
+ err = 0;
while (buf) {
- if (add_inbuf(vq, buf) < 0) {
- ret++;
+ port->stats.bytes_discarded += buf->len - buf->offset;
+ if (add_inbuf(port->in_vq, buf) < 0) {
+ err++;
free_buf(buf);
}
- buf = virtqueue_get_buf(vq, &len);
+ port->inbuf = NULL;
+ buf = get_inbuf(port);
}
- port->inbuf = NULL;
- if (ret)
+ if (err)
dev_warn(port->dev, "Errors adding %d buffers back to vq\n",
- ret);
+ err);
}
static bool port_has_data(struct port *port)
unsigned long flags;
bool ret;
+ ret = false;
spin_lock_irqsave(&port->inbuf_lock, flags);
- if (port->inbuf) {
- ret = true;
- goto out;
- }
port->inbuf = get_inbuf(port);
- if (port->inbuf) {
+ if (port->inbuf)
ret = true;
- goto out;
- }
- ret = false;
-out:
+
spin_unlock_irqrestore(&port->inbuf_lock, flags);
return ret;
}
cpu_relax();
done:
spin_unlock_irqrestore(&port->outvq_lock, flags);
+
+ port->stats.bytes_sent += in_count;
/*
* We're expected to return the amount of data we wrote -- all
* of it
if (filp->f_flags & O_NONBLOCK)
return -EAGAIN;
- ret = wait_event_interruptible(port->waitqueue,
- !will_read_block(port));
+ ret = wait_event_freezable(port->waitqueue,
+ !will_read_block(port));
if (ret < 0)
return ret;
}
if (nonblock)
return -EAGAIN;
- ret = wait_event_interruptible(port->waitqueue,
- !will_write_block(port));
+ ret = wait_event_freezable(port->waitqueue,
+ !will_write_block(port));
if (ret < 0)
return ret;
}
"host_connected: %d\n", port->host_connected);
out_offset += snprintf(buf + out_offset, out_count - out_offset,
"outvq_full: %d\n", port->outvq_full);
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "bytes_sent: %lu\n", port->stats.bytes_sent);
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "bytes_received: %lu\n",
+ port->stats.bytes_received);
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "bytes_discarded: %lu\n",
+ port->stats.bytes_discarded);
out_offset += snprintf(buf + out_offset, out_count - out_offset,
"is_console: %s\n",
is_console_port(port) ? "yes" : "no");
port->cons.ws.ws_row = port->cons.ws.ws_col = 0;
port->host_connected = port->guest_connected = false;
+ port->stats = (struct port_stats) { 0 };
port->outvq_full = false;
break;
init_port_console(port);
+ complete(&early_console_added);
/*
* Could remove the port here in case init fails - but
* have to notify the host first.
send_sigio_to_port(port);
break;
case VIRTIO_CONSOLE_PORT_NAME:
+ /*
+ * If we woke up after hibernation, we can get this
+ * again. Skip it in that case.
+ */
+ if (port->name)
+ break;
+
/*
* Skip the size of the header and the cpkt to get the size
* of the name that was sent
return;
spin_lock_irqsave(&port->inbuf_lock, flags);
- if (!port->inbuf)
- port->inbuf = get_inbuf(port);
+ port->inbuf = get_inbuf(port);
/*
* Don't queue up data when port is closed. This condition
portdev->out_vqs = kmalloc(nr_ports * sizeof(struct virtqueue *),
GFP_KERNEL);
if (!vqs || !io_callbacks || !io_names || !portdev->in_vqs ||
- !portdev->out_vqs) {
+ !portdev->out_vqs) {
err = -ENOMEM;
goto free;
}
struct ports_device *portdev;
int err;
bool multiport;
+ bool early = early_put_chars != NULL;
+
+ /* Ensure to read early_put_chars now */
+ barrier();
portdev = kmalloc(sizeof(*portdev), GFP_KERNEL);
if (!portdev) {
multiport = false;
portdev->config.max_nr_ports = 1;
- if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT)) {
+ if (virtio_config_val(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
+ offsetof(struct virtio_console_config,
+ max_nr_ports),
+ &portdev->config.max_nr_ports) == 0)
multiport = true;
- vdev->config->get(vdev, offsetof(struct virtio_console_config,
- max_nr_ports),
- &portdev->config.max_nr_ports,
- sizeof(portdev->config.max_nr_ports));
- }
err = init_vqs(portdev);
if (err < 0) {
__send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID,
VIRTIO_CONSOLE_DEVICE_READY, 1);
+
+ /*
+ * If there was an early virtio console, assume that there are no
+ * other consoles. We need to wait until the hvc_alloc matches the
+ * hvc_instantiate, otherwise tty_open will complain, resulting in
+ * a "Warning: unable to open an initial console" boot failure.
+ * Without multiport this is done in add_port above. With multiport
+ * this might take some host<->guest communication - thus we have to
+ * wait.
+ */
+ if (multiport && early)
+ wait_for_completion(&early_console_added);
+
return 0;
free_vqs:
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
+ #include <linux/module.h>
#include <asm/irq.h>
#include <mach/dma-v1.h>
*/
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/of.h>
#include <linux/of_device.h>
+ #include <linux/module.h>
#include <asm/irq.h>
#include <mach/sdma.h>
dma_addr_t context_phys;
struct dma_device dma_device;
struct clk *clk;
+ struct mutex channel_0_lock;
struct sdma_script_start_addrs *script_addrs;
};
dma_addr_t buf_phys;
int ret;
+ mutex_lock(&sdma->channel_0_lock);
+
buf_virt = dma_alloc_coherent(NULL,
size,
&buf_phys, GFP_KERNEL);
- if (!buf_virt)
- return -ENOMEM;
+ if (!buf_virt) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
bd0->mode.command = C0_SETPM;
bd0->mode.status = BD_DONE | BD_INTR | BD_WRAP | BD_EXTD;
dma_free_coherent(NULL, size, buf_virt, buf_phys);
+err_out:
+ mutex_unlock(&sdma->channel_0_lock);
+
return ret;
}
dev_dbg(sdma->dev, "event_mask0 = 0x%08x\n", sdmac->event_mask0);
dev_dbg(sdma->dev, "event_mask1 = 0x%08x\n", sdmac->event_mask1);
+ mutex_lock(&sdma->channel_0_lock);
+
memset(context, 0, sizeof(*context));
context->channel_state.pc = load_address;
ret = sdma_run_channel(&sdma->channel[0]);
+ mutex_unlock(&sdma->channel_0_lock);
+
return ret;
}
saddr_arr[i] = addr_arr[i];
}
-static int __init sdma_get_firmware(struct sdma_engine *sdma,
- const char *fw_name)
+static void sdma_load_firmware(const struct firmware *fw, void *context)
{
- const struct firmware *fw;
+ struct sdma_engine *sdma = context;
const struct sdma_firmware_header *header;
- int ret;
const struct sdma_script_start_addrs *addr;
unsigned short *ram_code;
- ret = request_firmware(&fw, fw_name, sdma->dev);
- if (ret)
- return ret;
+ if (!fw) {
+ dev_err(sdma->dev, "firmware not found\n");
+ return;
+ }
if (fw->size < sizeof(*header))
goto err_firmware;
err_firmware:
release_firmware(fw);
+}
+
+static int __init sdma_get_firmware(struct sdma_engine *sdma,
+ const char *fw_name)
+{
+ int ret;
+
+ ret = request_firmware_nowait(THIS_MODULE,
+ FW_ACTION_HOTPLUG, fw_name, sdma->dev,
+ GFP_KERNEL, sdma, sdma_load_firmware);
return ret;
}
struct sdma_platform_data *pdata = pdev->dev.platform_data;
int i;
struct sdma_engine *sdma;
+ s32 *saddr_arr;
sdma = kzalloc(sizeof(*sdma), GFP_KERNEL);
if (!sdma)
return -ENOMEM;
+ mutex_init(&sdma->channel_0_lock);
+
sdma->dev = &pdev->dev;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
goto err_alloc;
}
+ /* initially no scripts available */
+ saddr_arr = (s32 *)sdma->script_addrs;
+ for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++)
+ saddr_arr[i] = -EINVAL;
+
if (of_id)
pdev->id_entry = of_id->data;
sdma->devtype = pdev->id_entry->driver_data;
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/intel_mid_dma.h>
+ #include <linux/module.h>
#define MAX_CHAN 4 /*max ch across controllers*/
#include "intel_mid_dma_regs.h"
/**
* dmac1_mask_periphral_intr - mask the periphral interrupt
- * @midc: dma channel for which masking is required
+ * @mid: dma device for which masking is required
*
* Masks the DMA periphral interrupt
* this is valid for DMAC1 family controllers only
* This controller should have periphral mask registers already mapped
*/
-static void dmac1_mask_periphral_intr(struct intel_mid_dma_chan *midc)
+static void dmac1_mask_periphral_intr(struct middma_device *mid)
{
u32 pimr;
- struct middma_device *mid = to_middma_device(midc->chan.device);
if (mid->pimr_mask) {
pimr = readl(mid->mask_reg + LNW_PERIPHRAL_MASK);
static void disable_dma_interrupt(struct intel_mid_dma_chan *midc)
{
/*Check LPE PISR, make sure fwd is disabled*/
- dmac1_mask_periphral_intr(midc);
iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_BLOCK);
iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_TFR);
iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_ERR);
midch->chan.device = &dma->common;
midch->chan.cookie = 1;
- midch->chan.chan_id = i;
midch->ch_id = dma->chan_base + i;
pr_debug("MDMA:Init CH %d, ID %d\n", i, midch->ch_id);
dma_cap_set(DMA_SLAVE, dma->common.cap_mask);
dma_cap_set(DMA_PRIVATE, dma->common.cap_mask);
dma->common.dev = &pdev->dev;
- dma->common.chancnt = dma->max_chan;
dma->common.device_alloc_chan_resources =
intel_mid_dma_alloc_chan_resources;
if (device->ch[i].in_use)
return -EAGAIN;
}
+ dmac1_mask_periphral_intr(device);
device->state = SUSPENDED;
pci_save_state(pci);
pci_disable_device(pci);
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+ #include <linux/module.h>
#include <mach/ipu.h>
ipu_submit_buffer(ichan, descnew, sgnew, ichan->active_buffer) < 0) {
callback = descnew->txd.callback;
callback_param = descnew->txd.callback_param;
+ list_del_init(&descnew->list);
spin_unlock(&ichan->lock);
if (callback)
callback(callback_param);
{
struct idmac_channel *ichan = to_idmac_chan(chan);
struct idmac *idmac = to_idmac(chan->device);
+ struct ipu *ipu = to_ipu(idmac);
+ struct list_head *list, *tmp;
unsigned long flags;
int i;
- /* Only supports DMA_TERMINATE_ALL */
- if (cmd != DMA_TERMINATE_ALL)
- return -ENXIO;
+ switch (cmd) {
+ case DMA_PAUSE:
+ spin_lock_irqsave(&ipu->lock, flags);
+ ipu_ic_disable_task(ipu, chan->chan_id);
- ipu_disable_channel(idmac, ichan,
- ichan->status >= IPU_CHANNEL_ENABLED);
+ /* Return all descriptors into "prepared" state */
+ list_for_each_safe(list, tmp, &ichan->queue)
+ list_del_init(list);
- tasklet_disable(&to_ipu(idmac)->tasklet);
+ ichan->sg[0] = NULL;
+ ichan->sg[1] = NULL;
- /* ichan->queue is modified in ISR, have to spinlock */
- spin_lock_irqsave(&ichan->lock, flags);
- list_splice_init(&ichan->queue, &ichan->free_list);
+ spin_unlock_irqrestore(&ipu->lock, flags);
- if (ichan->desc)
- for (i = 0; i < ichan->n_tx_desc; i++) {
- struct idmac_tx_desc *desc = ichan->desc + i;
- if (list_empty(&desc->list))
- /* Descriptor was prepared, but not submitted */
- list_add(&desc->list, &ichan->free_list);
+ ichan->status = IPU_CHANNEL_INITIALIZED;
+ break;
+ case DMA_TERMINATE_ALL:
+ ipu_disable_channel(idmac, ichan,
+ ichan->status >= IPU_CHANNEL_ENABLED);
- async_tx_clear_ack(&desc->txd);
- }
+ tasklet_disable(&ipu->tasklet);
- ichan->sg[0] = NULL;
- ichan->sg[1] = NULL;
- spin_unlock_irqrestore(&ichan->lock, flags);
+ /* ichan->queue is modified in ISR, have to spinlock */
+ spin_lock_irqsave(&ichan->lock, flags);
+ list_splice_init(&ichan->queue, &ichan->free_list);
- tasklet_enable(&to_ipu(idmac)->tasklet);
+ if (ichan->desc)
+ for (i = 0; i < ichan->n_tx_desc; i++) {
+ struct idmac_tx_desc *desc = ichan->desc + i;
+ if (list_empty(&desc->list))
+ /* Descriptor was prepared, but not submitted */
+ list_add(&desc->list, &ichan->free_list);
- ichan->status = IPU_CHANNEL_INITIALIZED;
+ async_tx_clear_ack(&desc->txd);
+ }
+
+ ichan->sg[0] = NULL;
+ ichan->sg[1] = NULL;
+ spin_unlock_irqrestore(&ichan->lock, flags);
+
+ tasklet_enable(&ipu->tasklet);
+
+ ichan->status = IPU_CHANNEL_INITIALIZED;
+ break;
+ default:
+ return -ENOSYS;
+ }
return 0;
}
struct idmac_channel *ichan = ipu->channel + i;
idmac_control(&ichan->dma_chan, DMA_TERMINATE_ALL, 0);
- idmac_prep_slave_sg(&ichan->dma_chan, NULL, 0, DMA_NONE, 0);
}
dma_async_device_unregister(&idmac->dma);
#include <linux/basic_mmio_gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
+ #include <linux/module.h>
#include <asm-generic/bug.h>
#include <asm/mach/irq.h>
+#define irq_to_gpio(irq) ((irq) - MXC_GPIO_IRQ_START)
+
enum mxc_gpio_hwtype {
IMX1_GPIO, /* runs on i.mx1 */
IMX21_GPIO, /* runs on i.mx21 and i.mx27 */
mxc_gpio_hwtype = hwtype;
}
+static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct bgpio_chip *bgc = to_bgpio_chip(gc);
+ struct mxc_gpio_port *port =
+ container_of(bgc, struct mxc_gpio_port, bgc);
+
+ return port->virtual_irq_start + offset;
+}
+
static int __devinit mxc_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
if (err)
goto out_iounmap;
+ port->bgc.gc.to_irq = mxc_gpio_to_irq;
port->bgc.gc.base = pdev->id * 32;
port->bgc.dir = port->bgc.read_reg(port->bgc.reg_dir);
port->bgc.data = port->bgc.read_reg(port->bgc.reg_set);
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/basic_mmio_gpio.h>
+ #include <linux/module.h>
#include <mach/mxs.h>
#define MXS_SET 0x4
#define GPIO_INT_LEV_MASK (1 << 0)
#define GPIO_INT_POL_MASK (1 << 1)
+#define irq_to_gpio(irq) ((irq) - MXS_GPIO_IRQ_START)
+
struct mxs_gpio_port {
void __iomem *base;
int id;
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/hid-roccat.h>
+ #include <linux/module.h>
#define ROCCAT_FIRST_MINOR 0
#define ROCCAT_MAX_DEVICES 8
device = devices[minor];
- mutex_lock(&device->readers_lock);
-
if (!device) {
pr_emerg("roccat device with minor %d doesn't exist\n", minor);
error = -ENODEV;
- goto exit_err;
+ goto exit_err_devices;
}
+ mutex_lock(&device->readers_lock);
+
if (!device->open++) {
/* power on device on adding first reader */
error = hid_hw_power(device->hid, PM_HINT_FULLON);
if (error < 0) {
--device->open;
- goto exit_err;
+ goto exit_err_readers;
}
error = hid_hw_open(device->hid);
if (error < 0) {
hid_hw_power(device->hid, PM_HINT_NORMAL);
--device->open;
- goto exit_err;
+ goto exit_err_readers;
}
}
list_add_tail(&reader->node, &device->readers);
file->private_data = reader;
-exit_unlock:
+exit_err_readers:
mutex_unlock(&device->readers_lock);
+exit_err_devices:
mutex_unlock(&devices_lock);
+ if (error)
+ kfree(reader);
return error;
-exit_err:
- kfree(reader);
- goto exit_unlock;
}
static int roccat_release(struct inode *inode, struct file *file)
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/io.h>
+ #include <linux/module.h>
#include <asm/clock.h>
#include <asm/i2c-sh7760.h>
}
OUT32(id, I2CCCR, ret);
- if (request_irq(id->irq, sh7760_i2c_irq, IRQF_DISABLED,
+ if (request_irq(id->irq, sh7760_i2c_irq, 0,
SH7760_I2C_DEVNAME, id)) {
dev_err(&pdev->dev, "cannot get irq %d\n", id->irq);
ret = -EBUSY;
#include <linux/slab.h>
#include <linux/i2c-tegra.h>
#include <linux/of_i2c.h>
+ #include <linux/module.h>
#include <asm/unaligned.h>
struct clk *clk;
struct clk *i2c_clk;
const unsigned int *prop;
- void *base;
+ void __iomem *base;
int irq;
int ret = 0;
#include <linux/completion.h>
#include <linux/dma-mapping.h>
#include <linux/device.h>
+ #include <linux/module.h>
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
break;
case IB_CM_ESTABLISHED:
spin_unlock_irq(&cm_id_priv->lock);
+ if (cm_id_priv->qp_type == IB_QPT_XRC_TGT)
+ break;
ib_send_cm_dreq(cm_id, NULL, 0);
goto retest;
case IB_CM_DREQ_SENT:
req_msg->service_id = param->service_id;
req_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
cm_req_set_local_qpn(req_msg, cpu_to_be32(param->qp_num));
- cm_req_set_resp_res(req_msg, param->responder_resources);
cm_req_set_init_depth(req_msg, param->initiator_depth);
cm_req_set_remote_resp_timeout(req_msg,
param->remote_cm_response_timeout);
cm_req_set_starting_psn(req_msg, cpu_to_be32(param->starting_psn));
cm_req_set_local_resp_timeout(req_msg,
param->local_cm_response_timeout);
- cm_req_set_retry_count(req_msg, param->retry_count);
req_msg->pkey = param->primary_path->pkey;
cm_req_set_path_mtu(req_msg, param->primary_path->mtu);
- cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
cm_req_set_max_cm_retries(req_msg, param->max_cm_retries);
- cm_req_set_srq(req_msg, param->srq);
+
+ if (param->qp_type != IB_QPT_XRC_INI) {
+ cm_req_set_resp_res(req_msg, param->responder_resources);
+ cm_req_set_retry_count(req_msg, param->retry_count);
+ cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
+ cm_req_set_srq(req_msg, param->srq);
+ }
if (pri_path->hop_limit <= 1) {
req_msg->primary_local_lid = pri_path->slid;
if (!param->primary_path)
return -EINVAL;
- if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC)
+ if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC &&
+ param->qp_type != IB_QPT_XRC_INI)
return -EINVAL;
if (param->private_data &&
cm_format_mad_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid);
rep_msg->local_comm_id = cm_id_priv->id.local_id;
rep_msg->remote_comm_id = cm_id_priv->id.remote_id;
- cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
cm_rep_set_starting_psn(rep_msg, cpu_to_be32(param->starting_psn));
rep_msg->resp_resources = param->responder_resources;
- rep_msg->initiator_depth = param->initiator_depth;
cm_rep_set_target_ack_delay(rep_msg,
cm_id_priv->av.port->cm_dev->ack_delay);
cm_rep_set_failover(rep_msg, param->failover_accepted);
- cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
cm_rep_set_rnr_retry_count(rep_msg, param->rnr_retry_count);
- cm_rep_set_srq(rep_msg, param->srq);
rep_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
+ if (cm_id_priv->qp_type != IB_QPT_XRC_TGT) {
+ rep_msg->initiator_depth = param->initiator_depth;
+ cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
+ cm_rep_set_srq(rep_msg, param->srq);
+ cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
+ } else {
+ cm_rep_set_srq(rep_msg, 1);
+ cm_rep_set_local_eecn(rep_msg, cpu_to_be32(param->qp_num));
+ }
+
if (param->private_data && param->private_data_len)
memcpy(rep_msg->private_data, param->private_data,
param->private_data_len);
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->rq_psn = cm_rep_get_starting_psn(rep_msg);
- cm_id_priv->local_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->local_qpn = cpu_to_be32(param->qp_num & 0xFFFFFF);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
EXPORT_SYMBOL(ib_send_cm_rtu);
-static void cm_format_rep_event(struct cm_work *work)
+static void cm_format_rep_event(struct cm_work *work, enum ib_qp_type qp_type)
{
struct cm_rep_msg *rep_msg;
struct ib_cm_rep_event_param *param;
param = &work->cm_event.param.rep_rcvd;
param->remote_ca_guid = rep_msg->local_ca_guid;
param->remote_qkey = be32_to_cpu(rep_msg->local_qkey);
- param->remote_qpn = be32_to_cpu(cm_rep_get_local_qpn(rep_msg));
+ param->remote_qpn = be32_to_cpu(cm_rep_get_qpn(rep_msg, qp_type));
param->starting_psn = be32_to_cpu(cm_rep_get_starting_psn(rep_msg));
param->responder_resources = rep_msg->initiator_depth;
param->initiator_depth = rep_msg->resp_resources;
return -EINVAL;
}
- cm_format_rep_event(work);
+ cm_format_rep_event(work, cm_id_priv->qp_type);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
cm_id_priv->timewait_info->work.remote_id = rep_msg->local_comm_id;
cm_id_priv->timewait_info->remote_ca_guid = rep_msg->local_ca_guid;
- cm_id_priv->timewait_info->remote_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->timewait_info->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
spin_lock(&cm.lock);
/* Check for duplicate REP. */
cm_id_priv->id.state = IB_CM_REP_RCVD;
cm_id_priv->id.remote_id = rep_msg->local_comm_id;
- cm_id_priv->remote_qpn = cm_rep_get_local_qpn(rep_msg);
+ cm_id_priv->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
cm_id_priv->initiator_depth = rep_msg->resp_resources;
cm_id_priv->responder_resources = rep_msg->initiator_depth;
cm_id_priv->sq_psn = cm_rep_get_starting_psn(rep_msg);
qp_attr->path_mtu = cm_id_priv->path_mtu;
qp_attr->dest_qp_num = be32_to_cpu(cm_id_priv->remote_qpn);
qp_attr->rq_psn = be32_to_cpu(cm_id_priv->rq_psn);
- if (cm_id_priv->qp_type == IB_QPT_RC) {
+ if (cm_id_priv->qp_type == IB_QPT_RC ||
+ cm_id_priv->qp_type == IB_QPT_XRC_TGT) {
*qp_attr_mask |= IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER;
qp_attr->max_dest_rd_atomic =
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
*qp_attr_mask = IB_QP_STATE | IB_QP_SQ_PSN;
qp_attr->sq_psn = be32_to_cpu(cm_id_priv->sq_psn);
- if (cm_id_priv->qp_type == IB_QPT_RC) {
- *qp_attr_mask |= IB_QP_TIMEOUT | IB_QP_RETRY_CNT |
- IB_QP_RNR_RETRY |
+ switch (cm_id_priv->qp_type) {
+ case IB_QPT_RC:
+ case IB_QPT_XRC_INI:
+ *qp_attr_mask |= IB_QP_RETRY_CNT | IB_QP_RNR_RETRY |
IB_QP_MAX_QP_RD_ATOMIC;
- qp_attr->timeout = cm_id_priv->av.timeout;
qp_attr->retry_cnt = cm_id_priv->retry_count;
qp_attr->rnr_retry = cm_id_priv->rnr_retry_count;
- qp_attr->max_rd_atomic =
- cm_id_priv->initiator_depth;
+ qp_attr->max_rd_atomic = cm_id_priv->initiator_depth;
+ /* fall through */
+ case IB_QPT_XRC_TGT:
+ *qp_attr_mask |= IB_QP_TIMEOUT;
+ qp_attr->timeout = cm_id_priv->av.timeout;
+ break;
+ default:
+ break;
}
if (cm_id_priv->alt_av.ah_attr.dlid) {
*qp_attr_mask |= IB_QP_PATH_MIG_STATE;
#include <linux/idr.h>
#include <linux/inetdevice.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <net/tcp.h>
#include <net/ipv6.h>
static DEFINE_IDR(tcp_ps);
static DEFINE_IDR(udp_ps);
static DEFINE_IDR(ipoib_ps);
+static DEFINE_IDR(ib_ps);
struct cma_device {
struct list_head list;
event->param.conn.qp_num = req_data->remote_qpn;
}
+static int cma_check_req_qp_type(struct rdma_cm_id *id, struct ib_cm_event *ib_event)
+{
+ return (((ib_event->event == IB_CM_REQ_RECEIVED) ||
+ (ib_event->param.req_rcvd.qp_type == id->qp_type)) ||
+ ((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) &&
+ (id->qp_type == IB_QPT_UD)) ||
+ (!id->qp_type));
+}
+
static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
{
struct rdma_id_private *listen_id, *conn_id;
int offset, ret;
listen_id = cm_id->context;
+ if (!cma_check_req_qp_type(&listen_id->id, ib_event))
+ return -EINVAL;
+
if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
return -ECONNABORTED;
memset(&event, 0, sizeof event);
offset = cma_user_data_offset(listen_id->id.ps);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
- if (listen_id->id.qp_type == IB_QPT_UD) {
+ if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {
conn_id = cma_new_udp_id(&listen_id->id, ib_event);
event.param.ud.private_data = ib_event->private_data + offset;
event.param.ud.private_data_len =
switch (iw_event->status) {
case 0:
event.event = RDMA_CM_EVENT_ESTABLISHED;
+ event.param.conn.initiator_depth = iw_event->ird;
+ event.param.conn.responder_resources = iw_event->ord;
break;
case -ECONNRESET:
case -ECONNREFUSED:
break;
case IW_CM_EVENT_ESTABLISHED:
event.event = RDMA_CM_EVENT_ESTABLISHED;
+ event.param.conn.initiator_depth = iw_event->ird;
+ event.param.conn.responder_resources = iw_event->ord;
break;
default:
BUG_ON(1);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
event.param.conn.private_data = iw_event->private_data;
event.param.conn.private_data_len = iw_event->private_data_len;
- event.param.conn.initiator_depth = attr.max_qp_init_rd_atom;
- event.param.conn.responder_resources = attr.max_qp_rd_atom;
+ event.param.conn.initiator_depth = iw_event->ird;
+ event.param.conn.responder_resources = iw_event->ord;
/*
* Protect against the user destroying conn_id from another thread
case RDMA_PS_IPOIB:
ps = &ipoib_ps;
break;
+ case RDMA_PS_IB:
+ ps = &ib_ps;
+ break;
default:
return -EPROTONOSUPPORT;
}
req.service_id = cma_get_service_id(id_priv->id.ps,
(struct sockaddr *) &route->addr.dst_addr);
req.qp_num = id_priv->qp_num;
- req.qp_type = IB_QPT_RC;
+ req.qp_type = id_priv->id.qp_type;
req.starting_psn = id_priv->seq_num;
req.responder_resources = conn_param->responder_resources;
req.initiator_depth = conn_param->initiator_depth;
if (ret)
goto out;
- iw_param.ord = conn_param->initiator_depth;
- iw_param.ird = conn_param->responder_resources;
- iw_param.private_data = conn_param->private_data;
- iw_param.private_data_len = conn_param->private_data_len;
- if (id_priv->id.qp)
+ if (conn_param) {
+ iw_param.ord = conn_param->initiator_depth;
+ iw_param.ird = conn_param->responder_resources;
+ iw_param.private_data = conn_param->private_data;
+ iw_param.private_data_len = conn_param->private_data_len;
+ iw_param.qpn = id_priv->id.qp ? id_priv->qp_num : conn_param->qp_num;
+ } else {
+ memset(&iw_param, 0, sizeof iw_param);
iw_param.qpn = id_priv->qp_num;
- else
- iw_param.qpn = conn_param->qp_num;
+ }
ret = iw_cm_connect(cm_id, &iw_param);
out:
if (ret) {
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
- if (id->qp_type == IB_QPT_UD)
- ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
- conn_param->private_data,
- conn_param->private_data_len);
- else if (conn_param)
- ret = cma_accept_ib(id_priv, conn_param);
- else
- ret = cma_rep_recv(id_priv);
+ if (id->qp_type == IB_QPT_UD) {
+ if (conn_param)
+ ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
+ conn_param->private_data,
+ conn_param->private_data_len);
+ else
+ ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
+ NULL, 0);
+ } else {
+ if (conn_param)
+ ret = cma_accept_ib(id_priv, conn_param);
+ else
+ ret = cma_rep_recv(id_priv);
+ }
break;
case RDMA_TRANSPORT_IWARP:
ret = cma_accept_iw(id_priv, conn_param);
idr_destroy(&tcp_ps);
idr_destroy(&udp_ps);
idr_destroy(&ipoib_ps);
+ idr_destroy(&ib_ps);
}
module_init(cma_init);
*/
#include <linux/dma-mapping.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <rdma/ib_cache.h>
#include "mad_priv.h"
mad->mad_hdr.class_version].class;
if (!class)
goto out;
+ if (convert_mgmt_class(mad->mad_hdr.mgmt_class) >=
+ IB_MGMT_MAX_METHODS)
+ goto out;
method = class->method_table[convert_mgmt_class(
mad->mad_hdr.mgmt_class)];
if (method)
#include "core_priv.h"
#include <linux/slab.h>
+ #include <linux/stat.h>
#include <linux/string.h>
#include <rdma/ib_mad.h>
if (ret)
return ret;
+ rate = (25 * attr.active_speed) / 10;
+
switch (attr.active_speed) {
- case 2: speed = " DDR"; break;
- case 4: speed = " QDR"; break;
+ case 2:
+ speed = " DDR";
+ break;
+ case 4:
+ speed = " QDR";
+ break;
+ case 8:
+ speed = " FDR10";
+ rate = 10;
+ break;
+ case 16:
+ speed = " FDR";
+ rate = 14;
+ break;
+ case 32:
+ speed = " EDR";
+ rate = 25;
+ break;
}
- rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed;
+ rate *= ib_width_enum_to_int(attr.active_width);
if (rate < 0)
return -EINVAL;
return sprintf(buf, "%d%s Gb/sec (%dX%s)\n",
- rate / 10, rate % 10 ? ".5" : "",
+ rate, (attr.active_speed == 1) ? ".5" : "",
ib_width_enum_to_int(attr.active_width), speed);
}
#include <linux/miscdevice.h>
#include <linux/slab.h>
#include <linux/sysctl.h>
+ #include <linux/module.h>
#include <rdma/rdma_user_cm.h>
#include <rdma/ib_marshall.h>
ucma_set_event_context(ctx, event, uevent);
uevent->resp.event = event->event;
uevent->resp.status = event->status;
- if (cm_id->ps == RDMA_PS_UDP || cm_id->ps == RDMA_PS_IPOIB)
+ if (cm_id->qp_type == IB_QPT_UD)
ucma_copy_ud_event(&uevent->resp.param.ud, &event->param.ud);
else
ucma_copy_conn_event(&uevent->resp.param.conn,
case RDMA_PS_IPOIB:
*qp_type = IB_QPT_UD;
return 0;
+ case RDMA_PS_IB:
+ *qp_type = cmd->qp_type;
+ return 0;
default:
return -EINVAL;
}
if (copy_from_user(&hdr, buf, sizeof(hdr)))
return -EFAULT;
- if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
+ if (hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
return -EINVAL;
if (hdr.in + sizeof(hdr) > len)
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/sched.h>
+ #include <linux/export.h>
#include <linux/hugetlb.h>
#include <linux/dma-attrs.h>
#include <linux/slab.h>
down_write(¤t->mm->mmap_sem);
- locked = npages + current->mm->locked_vm;
+ locked = npages + current->mm->pinned_vm;
lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
if ((locked > lock_limit) && !capable(CAP_IPC_LOCK)) {
__ib_umem_release(context->device, umem, 0);
kfree(umem);
} else
- current->mm->locked_vm = locked;
+ current->mm->pinned_vm = locked;
up_write(¤t->mm->mmap_sem);
if (vma_list)
struct ib_umem *umem = container_of(work, struct ib_umem, work);
down_write(&umem->mm->mmap_sem);
- umem->mm->locked_vm -= umem->diff;
+ umem->mm->pinned_vm -= umem->diff;
up_write(&umem->mm->mmap_sem);
mmput(umem->mm);
kfree(umem);
#include <linux/errno.h>
#include <linux/err.h>
+ #include <linux/export.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
}
EXPORT_SYMBOL(mult_to_ib_rate);
+int ib_rate_to_mbps(enum ib_rate rate)
+{
+ switch (rate) {
+ case IB_RATE_2_5_GBPS: return 2500;
+ case IB_RATE_5_GBPS: return 5000;
+ case IB_RATE_10_GBPS: return 10000;
+ case IB_RATE_20_GBPS: return 20000;
+ case IB_RATE_30_GBPS: return 30000;
+ case IB_RATE_40_GBPS: return 40000;
+ case IB_RATE_60_GBPS: return 60000;
+ case IB_RATE_80_GBPS: return 80000;
+ case IB_RATE_120_GBPS: return 120000;
+ case IB_RATE_14_GBPS: return 14062;
+ case IB_RATE_56_GBPS: return 56250;
+ case IB_RATE_112_GBPS: return 112500;
+ case IB_RATE_168_GBPS: return 168750;
+ case IB_RATE_25_GBPS: return 25781;
+ case IB_RATE_100_GBPS: return 103125;
+ case IB_RATE_200_GBPS: return 206250;
+ case IB_RATE_300_GBPS: return 309375;
+ default: return -1;
+ }
+}
+EXPORT_SYMBOL(ib_rate_to_mbps);
+
enum rdma_transport_type
rdma_node_get_transport(enum rdma_node_type node_type)
{
srq->uobject = NULL;
srq->event_handler = srq_init_attr->event_handler;
srq->srq_context = srq_init_attr->srq_context;
+ srq->srq_type = srq_init_attr->srq_type;
+ if (srq->srq_type == IB_SRQT_XRC) {
+ srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd;
+ srq->ext.xrc.cq = srq_init_attr->ext.xrc.cq;
+ atomic_inc(&srq->ext.xrc.xrcd->usecnt);
+ atomic_inc(&srq->ext.xrc.cq->usecnt);
+ }
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
}
int ib_destroy_srq(struct ib_srq *srq)
{
struct ib_pd *pd;
+ enum ib_srq_type srq_type;
+ struct ib_xrcd *uninitialized_var(xrcd);
+ struct ib_cq *uninitialized_var(cq);
int ret;
if (atomic_read(&srq->usecnt))
return -EBUSY;
pd = srq->pd;
+ srq_type = srq->srq_type;
+ if (srq_type == IB_SRQT_XRC) {
+ xrcd = srq->ext.xrc.xrcd;
+ cq = srq->ext.xrc.cq;
+ }
ret = srq->device->destroy_srq(srq);
- if (!ret)
+ if (!ret) {
atomic_dec(&pd->usecnt);
+ if (srq_type == IB_SRQT_XRC) {
+ atomic_dec(&xrcd->usecnt);
+ atomic_dec(&cq->usecnt);
+ }
+ }
return ret;
}
/* Queue pairs */
+static void __ib_shared_qp_event_handler(struct ib_event *event, void *context)
+{
+ struct ib_qp *qp = context;
+
+ list_for_each_entry(event->element.qp, &qp->open_list, open_list)
+ event->element.qp->event_handler(event, event->element.qp->qp_context);
+}
+
+static void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp)
+{
+ mutex_lock(&xrcd->tgt_qp_mutex);
+ list_add(&qp->xrcd_list, &xrcd->tgt_qp_list);
+ mutex_unlock(&xrcd->tgt_qp_mutex);
+}
+
+static struct ib_qp *__ib_open_qp(struct ib_qp *real_qp,
+ void (*event_handler)(struct ib_event *, void *),
+ void *qp_context)
+{
+ struct ib_qp *qp;
+ unsigned long flags;
+
+ qp = kzalloc(sizeof *qp, GFP_KERNEL);
+ if (!qp)
+ return ERR_PTR(-ENOMEM);
+
+ qp->real_qp = real_qp;
+ atomic_inc(&real_qp->usecnt);
+ qp->device = real_qp->device;
+ qp->event_handler = event_handler;
+ qp->qp_context = qp_context;
+ qp->qp_num = real_qp->qp_num;
+ qp->qp_type = real_qp->qp_type;
+
+ spin_lock_irqsave(&real_qp->device->event_handler_lock, flags);
+ list_add(&qp->open_list, &real_qp->open_list);
+ spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags);
+
+ return qp;
+}
+
+struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd,
+ struct ib_qp_open_attr *qp_open_attr)
+{
+ struct ib_qp *qp, *real_qp;
+
+ if (qp_open_attr->qp_type != IB_QPT_XRC_TGT)
+ return ERR_PTR(-EINVAL);
+
+ qp = ERR_PTR(-EINVAL);
+ mutex_lock(&xrcd->tgt_qp_mutex);
+ list_for_each_entry(real_qp, &xrcd->tgt_qp_list, xrcd_list) {
+ if (real_qp->qp_num == qp_open_attr->qp_num) {
+ qp = __ib_open_qp(real_qp, qp_open_attr->event_handler,
+ qp_open_attr->qp_context);
+ break;
+ }
+ }
+ mutex_unlock(&xrcd->tgt_qp_mutex);
+ return qp;
+}
+EXPORT_SYMBOL(ib_open_qp);
+
struct ib_qp *ib_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *qp_init_attr)
{
- struct ib_qp *qp;
+ struct ib_qp *qp, *real_qp;
+ struct ib_device *device;
- qp = pd->device->create_qp(pd, qp_init_attr, NULL);
+ device = pd ? pd->device : qp_init_attr->xrcd->device;
+ qp = device->create_qp(pd, qp_init_attr, NULL);
if (!IS_ERR(qp)) {
- qp->device = pd->device;
- qp->pd = pd;
- qp->send_cq = qp_init_attr->send_cq;
- qp->recv_cq = qp_init_attr->recv_cq;
- qp->srq = qp_init_attr->srq;
- qp->uobject = NULL;
- qp->event_handler = qp_init_attr->event_handler;
- qp->qp_context = qp_init_attr->qp_context;
- qp->qp_type = qp_init_attr->qp_type;
- atomic_inc(&pd->usecnt);
- atomic_inc(&qp_init_attr->send_cq->usecnt);
- atomic_inc(&qp_init_attr->recv_cq->usecnt);
- if (qp_init_attr->srq)
- atomic_inc(&qp_init_attr->srq->usecnt);
+ qp->device = device;
+ qp->real_qp = qp;
+ qp->uobject = NULL;
+ qp->qp_type = qp_init_attr->qp_type;
+
+ if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) {
+ qp->event_handler = __ib_shared_qp_event_handler;
+ qp->qp_context = qp;
+ qp->pd = NULL;
+ qp->send_cq = qp->recv_cq = NULL;
+ qp->srq = NULL;
+ qp->xrcd = qp_init_attr->xrcd;
+ atomic_inc(&qp_init_attr->xrcd->usecnt);
+ INIT_LIST_HEAD(&qp->open_list);
+ atomic_set(&qp->usecnt, 0);
+
+ real_qp = qp;
+ qp = __ib_open_qp(real_qp, qp_init_attr->event_handler,
+ qp_init_attr->qp_context);
+ if (!IS_ERR(qp))
+ __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp);
+ else
+ real_qp->device->destroy_qp(real_qp);
+ } else {
+ qp->event_handler = qp_init_attr->event_handler;
+ qp->qp_context = qp_init_attr->qp_context;
+ if (qp_init_attr->qp_type == IB_QPT_XRC_INI) {
+ qp->recv_cq = NULL;
+ qp->srq = NULL;
+ } else {
+ qp->recv_cq = qp_init_attr->recv_cq;
+ atomic_inc(&qp_init_attr->recv_cq->usecnt);
+ qp->srq = qp_init_attr->srq;
+ if (qp->srq)
+ atomic_inc(&qp_init_attr->srq->usecnt);
+ }
+
+ qp->pd = pd;
+ qp->send_cq = qp_init_attr->send_cq;
+ qp->xrcd = NULL;
+
+ atomic_inc(&pd->usecnt);
+ atomic_inc(&qp_init_attr->send_cq->usecnt);
+ }
}
return qp;
static const struct {
int valid;
- enum ib_qp_attr_mask req_param[IB_QPT_RAW_ETHERTYPE + 1];
- enum ib_qp_attr_mask opt_param[IB_QPT_RAW_ETHERTYPE + 1];
+ enum ib_qp_attr_mask req_param[IB_QPT_MAX];
+ enum ib_qp_attr_mask opt_param[IB_QPT_MAX];
} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
[IB_QPS_RESET] = {
[IB_QPS_RESET] = { .valid = 1 },
[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
+ [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
IB_QP_PORT |
IB_QP_ACCESS_FLAGS),
+ [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
IB_QP_RQ_PSN |
IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER),
+ [IB_QPT_XRC_INI] = (IB_QP_AV |
+ IB_QP_PATH_MTU |
+ IB_QP_DEST_QPN |
+ IB_QP_RQ_PSN),
+ [IB_QPT_XRC_TGT] = (IB_QP_AV |
+ IB_QP_PATH_MTU |
+ IB_QP_DEST_QPN |
+ IB_QP_RQ_PSN |
+ IB_QP_MAX_DEST_RD_ATOMIC |
+ IB_QP_MIN_RNR_TIMER),
},
.opt_param = {
[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
[IB_QPT_RC] = (IB_QP_ALT_PATH |
IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX),
+ [IB_QPT_XRC_INI] = (IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX),
+ [IB_QPT_XRC_TGT] = (IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
IB_QP_RNR_RETRY |
IB_QP_SQ_PSN |
IB_QP_MAX_QP_RD_ATOMIC),
+ [IB_QPT_XRC_INI] = (IB_QP_TIMEOUT |
+ IB_QP_RETRY_CNT |
+ IB_QP_RNR_RETRY |
+ IB_QP_SQ_PSN |
+ IB_QP_MAX_QP_RD_ATOMIC),
+ [IB_QPT_XRC_TGT] = (IB_QP_TIMEOUT |
+ IB_QP_SQ_PSN),
[IB_QPT_SMI] = IB_QP_SQ_PSN,
[IB_QPT_GSI] = IB_QP_SQ_PSN,
},
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
IB_QP_ALT_PATH |
IB_QP_PATH_MIG_STATE |
IB_QP_MIN_RNR_TIMER),
+ [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_ALT_PATH |
+ IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_ALT_PATH |
+ IB_QP_PATH_MIG_STATE |
+ IB_QP_MIN_RNR_TIMER),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
[IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
+ [IB_QPT_XRC_INI] = IB_QP_EN_SQD_ASYNC_NOTIFY,
+ [IB_QPT_XRC_TGT] = IB_QP_EN_SQD_ASYNC_NOTIFY, /* ??? */
[IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY,
[IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY
}
IB_QP_ACCESS_FLAGS |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
IB_QP_PKEY_INDEX |
IB_QP_MIN_RNR_TIMER |
IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_INI] = (IB_QP_PORT |
+ IB_QP_AV |
+ IB_QP_TIMEOUT |
+ IB_QP_RETRY_CNT |
+ IB_QP_RNR_RETRY |
+ IB_QP_MAX_QP_RD_ATOMIC |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX |
+ IB_QP_PATH_MIG_STATE),
+ [IB_QPT_XRC_TGT] = (IB_QP_PORT |
+ IB_QP_AV |
+ IB_QP_TIMEOUT |
+ IB_QP_MAX_DEST_RD_ATOMIC |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
struct ib_qp_attr *qp_attr,
int qp_attr_mask)
{
- return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL);
+ return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_qp);
struct ib_qp_init_attr *qp_init_attr)
{
return qp->device->query_qp ?
- qp->device->query_qp(qp, qp_attr, qp_attr_mask, qp_init_attr) :
+ qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) :
-ENOSYS;
}
EXPORT_SYMBOL(ib_query_qp);
+int ib_close_qp(struct ib_qp *qp)
+{
+ struct ib_qp *real_qp;
+ unsigned long flags;
+
+ real_qp = qp->real_qp;
+ if (real_qp == qp)
+ return -EINVAL;
+
+ spin_lock_irqsave(&real_qp->device->event_handler_lock, flags);
+ list_del(&qp->open_list);
+ spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags);
+
+ atomic_dec(&real_qp->usecnt);
+ kfree(qp);
+
+ return 0;
+}
+EXPORT_SYMBOL(ib_close_qp);
+
+static int __ib_destroy_shared_qp(struct ib_qp *qp)
+{
+ struct ib_xrcd *xrcd;
+ struct ib_qp *real_qp;
+ int ret;
+
+ real_qp = qp->real_qp;
+ xrcd = real_qp->xrcd;
+
+ mutex_lock(&xrcd->tgt_qp_mutex);
+ ib_close_qp(qp);
+ if (atomic_read(&real_qp->usecnt) == 0)
+ list_del(&real_qp->xrcd_list);
+ else
+ real_qp = NULL;
+ mutex_unlock(&xrcd->tgt_qp_mutex);
+
+ if (real_qp) {
+ ret = ib_destroy_qp(real_qp);
+ if (!ret)
+ atomic_dec(&xrcd->usecnt);
+ else
+ __ib_insert_xrcd_qp(xrcd, real_qp);
+ }
+
+ return 0;
+}
+
int ib_destroy_qp(struct ib_qp *qp)
{
struct ib_pd *pd;
struct ib_srq *srq;
int ret;
- pd = qp->pd;
- scq = qp->send_cq;
- rcq = qp->recv_cq;
- srq = qp->srq;
+ if (atomic_read(&qp->usecnt))
+ return -EBUSY;
+
+ if (qp->real_qp != qp)
+ return __ib_destroy_shared_qp(qp);
+
+ pd = qp->pd;
+ scq = qp->send_cq;
+ rcq = qp->recv_cq;
+ srq = qp->srq;
ret = qp->device->destroy_qp(qp);
if (!ret) {
- atomic_dec(&pd->usecnt);
- atomic_dec(&scq->usecnt);
- atomic_dec(&rcq->usecnt);
+ if (pd)
+ atomic_dec(&pd->usecnt);
+ if (scq)
+ atomic_dec(&scq->usecnt);
+ if (rcq)
+ atomic_dec(&rcq->usecnt);
if (srq)
atomic_dec(&srq->usecnt);
}
return qp->device->detach_mcast(qp, gid, lid);
}
EXPORT_SYMBOL(ib_detach_mcast);
+
+struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device)
+{
+ struct ib_xrcd *xrcd;
+
+ if (!device->alloc_xrcd)
+ return ERR_PTR(-ENOSYS);
+
+ xrcd = device->alloc_xrcd(device, NULL, NULL);
+ if (!IS_ERR(xrcd)) {
+ xrcd->device = device;
+ xrcd->inode = NULL;
+ atomic_set(&xrcd->usecnt, 0);
+ mutex_init(&xrcd->tgt_qp_mutex);
+ INIT_LIST_HEAD(&xrcd->tgt_qp_list);
+ }
+
+ return xrcd;
+}
+EXPORT_SYMBOL(ib_alloc_xrcd);
+
+int ib_dealloc_xrcd(struct ib_xrcd *xrcd)
+{
+ struct ib_qp *qp;
+ int ret;
+
+ if (atomic_read(&xrcd->usecnt))
+ return -EBUSY;
+
+ while (!list_empty(&xrcd->tgt_qp_list)) {
+ qp = list_entry(xrcd->tgt_qp_list.next, struct ib_qp, xrcd_list);
+ ret = ib_destroy_qp(qp);
+ if (ret)
+ return ret;
+ }
+
+ return xrcd->device->dealloc_xrcd(xrcd);
+}
+EXPORT_SYMBOL(ib_dealloc_xrcd);
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
+
+ #include <linux/module.h>
+
#include "iw_cxgb4.h"
static int ocqp_support = 1;
wqe->u.terminate.type = FW_RI_TYPE_TERMINATE;
wqe->u.terminate.immdlen = cpu_to_be32(sizeof *term);
term = (struct terminate_message *)wqe->u.terminate.termmsg;
- build_term_codes(err_cqe, &term->layer_etype, &term->ecode);
+ if (qhp->attr.layer_etype == (LAYER_MPA|DDP_LLP)) {
+ term->layer_etype = qhp->attr.layer_etype;
+ term->ecode = qhp->attr.ecode;
+ } else
+ build_term_codes(err_cqe, &term->layer_etype, &term->ecode);
c4iw_ofld_send(&qhp->rhp->rdev, skb);
}
flushed = c4iw_flush_rq(&qhp->wq, &rchp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&rchp->lock, flag);
- if (flushed)
+ if (flushed) {
+ spin_lock_irqsave(&rchp->comp_handler_lock, flag);
(*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
+ spin_unlock_irqrestore(&rchp->comp_handler_lock, flag);
+ }
/* locking hierarchy: cq lock first, then qp lock. */
spin_lock_irqsave(&schp->lock, flag);
flushed = c4iw_flush_sq(&qhp->wq, &schp->cq, count);
spin_unlock(&qhp->lock);
spin_unlock_irqrestore(&schp->lock, flag);
- if (flushed)
+ if (flushed) {
+ spin_lock_irqsave(&schp->comp_handler_lock, flag);
(*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context);
+ spin_unlock_irqrestore(&schp->comp_handler_lock, flag);
+ }
}
static void flush_qp(struct c4iw_qp *qhp)
{
struct c4iw_cq *rchp, *schp;
+ unsigned long flag;
rchp = get_chp(qhp->rhp, qhp->attr.rcq);
schp = get_chp(qhp->rhp, qhp->attr.scq);
if (qhp->ibqp.uobject) {
t4_set_wq_in_error(&qhp->wq);
t4_set_cq_in_error(&rchp->cq);
- if (schp != rchp)
+ spin_lock_irqsave(&rchp->comp_handler_lock, flag);
+ (*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context);
+ spin_unlock_irqrestore(&rchp->comp_handler_lock, flag);
+ if (schp != rchp) {
t4_set_cq_in_error(&schp->cq);
+ spin_lock_irqsave(&schp->comp_handler_lock, flag);
+ (*schp->ibcq.comp_handler)(&schp->ibcq,
+ schp->ibcq.cq_context);
+ spin_unlock_irqrestore(&schp->comp_handler_lock, flag);
+ }
return;
}
__flush_qp(qhp, rchp, schp);
static void build_rtr_msg(u8 p2p_type, struct fw_ri_init *init)
{
+ PDBG("%s p2p_type = %d\n", __func__, p2p_type);
memset(&init->u, 0, sizeof init->u);
switch (p2p_type) {
case FW_RI_INIT_P2PTYPE_RDMA_WRITE:
disconnect = 1;
c4iw_get_ep(&qhp->ep->com);
}
+ if (qhp->ibqp.uobject)
+ t4_set_wq_in_error(&qhp->wq);
ret = rdma_fini(rhp, qhp, ep);
if (ret)
goto err;
break;
case C4IW_QP_STATE_TERMINATE:
set_state(qhp, C4IW_QP_STATE_TERMINATE);
+ qhp->attr.layer_etype = attrs->layer_etype;
+ qhp->attr.ecode = attrs->ecode;
if (qhp->ibqp.uobject)
t4_set_wq_in_error(&qhp->wq);
ep = qhp->ep;
break;
case C4IW_QP_STATE_ERROR:
set_state(qhp, C4IW_QP_STATE_ERROR);
+ if (qhp->ibqp.uobject)
+ t4_set_wq_in_error(&qhp->wq);
if (!internal) {
abort = 1;
disconnect = 1;
rhp = qhp->rhp;
attrs.next_state = C4IW_QP_STATE_ERROR;
- c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
+ if (qhp->attr.state == C4IW_QP_STATE_TERMINATE)
+ c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 1);
+ else
+ c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
wait_event(qhp->wait, !qhp->ep);
remove_handle(rhp, &rhp->qpidr, qhp->wq.sq.qid);
#include <linux/sched.h>
#include <linux/slab.h>
+ #include <linux/stat.h>
#include <linux/mm.h>
+ #include <linux/export.h>
#include "mthca_dev.h"
#include "mthca_cmd.h"
struct mthca_srq *srq;
int err;
+ if (init_attr->srq_type != IB_SRQT_BASIC)
+ return ERR_PTR(-ENOSYS);
+
srq = kmalloc(sizeof *srq, GFP_KERNEL);
if (!srq)
return ERR_PTR(-ENOMEM);
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
+ #include <linux/module.h>
#include "qib.h"
*/
static inline void *qib_get_egrbuf(const struct qib_ctxtdata *rcd, u32 etail)
{
- const u32 chunk = etail / rcd->rcvegrbufs_perchunk;
- const u32 idx = etail % rcd->rcvegrbufs_perchunk;
+ const u32 chunk = etail >> rcd->rcvegrbufs_perchunk_shift;
+ const u32 idx = etail & ((u32)rcd->rcvegrbufs_perchunk - 1);
- return rcd->rcvegrbuf[chunk] + idx * rcd->dd->rcvegrbufsize;
+ return rcd->rcvegrbuf[chunk] + (idx << rcd->dd->rcvegrbufsize_shift);
}
/*
u32 opcode;
u32 psn;
int diff;
- unsigned long flags;
/* Sanity check packet */
if (tlen < 24)
switch (qp->ibqp.qp_type) {
case IB_QPT_RC:
- spin_lock_irqsave(&qp->s_lock, flags);
ruc_res =
qib_ruc_check_hdr(
ibp, hdr,
qp,
be32_to_cpu(ohdr->bth[0]));
if (ruc_res) {
- spin_unlock_irqrestore(&qp->s_lock,
- flags);
goto unlock;
}
- spin_unlock_irqrestore(&qp->s_lock, flags);
/* Only deal with RDMA Writes for now */
if (opcode <
updegr = 0;
}
}
+ /*
+ * Notify qib_destroy_qp() if it is waiting
+ * for lookaside_qp to finish.
+ */
+ if (rcd->lookaside_qp) {
+ if (atomic_dec_and_test(&rcd->lookaside_qp->refcount))
+ wake_up(&rcd->lookaside_qp->wait);
+ rcd->lookaside_qp = NULL;
+ }
rcd->head = l;
rcd->pkt_count += i;
#include <linux/jiffies.h>
#include <asm/pgtable.h>
#include <linux/delay.h>
+ #include <linux/export.h>
#include "qib.h"
#include "qib_common.h"
strlcpy(rcd->comm, current->comm, sizeof(rcd->comm));
ctxt_fp(fp) = rcd;
qib_stats.sps_ctxts++;
+ dd->freectxts++;
ret = 0;
goto bail;
if (dd->pageshadow)
unlock_expected_tids(rcd);
qib_stats.sps_ctxts--;
+ dd->freectxts--;
}
mutex_unlock(&qib_mutex);
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/delay.h>
+ #include <linux/module.h>
#include <linux/io.h>
#include <rdma/ib_verbs.h>
/* we always allocate at least 2048 bytes for eager buffers */
ret = ib_mtu_enum_to_int(qib_ibmtu);
dd->rcvegrbufsize = ret != -1 ? max(ret, 2048) : QIB_DEFAULT_MTU;
+ BUG_ON(!is_power_of_2(dd->rcvegrbufsize));
+ dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize);
qib_7220_tidtemplate(dd);
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/jiffies.h>
+ #include <linux/module.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_smi.h>
val = ppd->cpspec->ibcctrl_a | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE <<
QLOGIC_IB_IBCC_LINKINITCMD_SHIFT);
+ ppd->cpspec->ibcctrl_a = val;
/*
* Reset the PCS interface to the serdes (and also ibc, which is still
* in reset from above). Writes new value of ibcctrl_a as last step.
*/
qib_7322_mini_pcs_reset(ppd);
qib_write_kreg(dd, kr_scratch, 0ULL);
+ /* clear the linkinit cmds */
+ ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, LinkInitCmd);
if (!ppd->cpspec->ibcctrl_b) {
unsigned lse = ppd->link_speed_enabled;
qib_write_kreg_port(ppd, krp_rcvctrl, ppd->p_rcvctrl);
spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags);
- /* Hold the link state machine for mezz boards */
- if (IS_QMH(dd) || IS_QME(dd))
- qib_set_ib_7322_lstate(ppd, 0,
- QLOGIC_IB_IBCC_LINKINITCMD_DISABLE);
-
/* Also enable IBSTATUSCHG interrupt. */
val = qib_read_kreg_port(ppd, krp_errmask);
qib_write_kreg_port(ppd, krp_errmask,
for (i = 0; i < dd->first_user_ctxt; i++) {
if (ctxtrbits & rmask) {
ctxtrbits &= ~rmask;
- if (dd->rcd[i]) {
+ if (dd->rcd[i])
qib_kreceive(dd->rcd[i], NULL, &npkts);
- }
}
rmask <<= 1;
}
QIBL_IB_AUTONEG_INPROG)))
set_7322_ibspeed_fast(ppd, ppd->link_speed_enabled);
if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) {
+ struct qib_qsfp_data *qd =
+ &ppd->cpspec->qsfp_data;
/* unlock the Tx settings, speed may change */
qib_write_kreg_port(ppd, krp_tx_deemph_override,
SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0,
qib_cancel_sends(ppd);
/* on link down, ensure sane pcs state */
qib_7322_mini_pcs_reset(ppd);
+ /* schedule the qsfp refresh which should turn the link
+ off */
+ if (ppd->dd->flags & QIB_HAS_QSFP) {
+ qd->t_insert = get_jiffies_64();
+ schedule_work(&qd->work);
+ }
spin_lock_irqsave(&ppd->sdma_lock, flags);
if (__qib_sdma_running(ppd))
__qib_sdma_process_event(ppd,
struct qib_qsfp_data *qd;
struct qib_pportdata *ppd;
u64 pwrup;
+ unsigned long flags;
int ret;
u32 le2;
qd = container_of(work, struct qib_qsfp_data, work);
ppd = qd->ppd;
- pwrup = qd->t_insert + msecs_to_jiffies(QSFP_PWR_LAG_MSEC);
+ pwrup = qd->t_insert +
+ msecs_to_jiffies(QSFP_PWR_LAG_MSEC - QSFP_MODPRS_LAG_MSEC);
- /*
- * Some QSFP's not only do not respond until the full power-up
- * time, but may behave badly if we try. So hold off responding
- * to insertion.
- */
- while (1) {
- u64 now = get_jiffies_64();
- if (time_after64(now, pwrup))
- break;
- msleep(20);
- }
- ret = qib_refresh_qsfp_cache(ppd, &qd->cache);
- /*
- * Need to change LE2 back to defaults if we couldn't
- * read the cable type (to handle cable swaps), so do this
- * even on failure to read cable information. We don't
- * get here for QME, so IS_QME check not needed here.
- */
- if (!ret && !ppd->dd->cspec->r1) {
- if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
- le2 = LE2_QME;
- else if (qd->cache.atten[1] >= qib_long_atten &&
- QSFP_IS_CU(qd->cache.tech))
- le2 = LE2_5m;
- else
+ /* Delay for 20 msecs to allow ModPrs resistor to setup */
+ mdelay(QSFP_MODPRS_LAG_MSEC);
+
+ if (!qib_qsfp_mod_present(ppd)) {
+ ppd->cpspec->qsfp_data.modpresent = 0;
+ /* Set the physical link to disabled */
+ qib_set_ib_7322_lstate(ppd, 0,
+ QLOGIC_IB_IBCC_LINKINITCMD_DISABLE);
+ spin_lock_irqsave(&ppd->lflags_lock, flags);
+ ppd->lflags &= ~QIBL_LINKV;
+ spin_unlock_irqrestore(&ppd->lflags_lock, flags);
+ } else {
+ /*
+ * Some QSFP's not only do not respond until the full power-up
+ * time, but may behave badly if we try. So hold off responding
+ * to insertion.
+ */
+ while (1) {
+ u64 now = get_jiffies_64();
+ if (time_after64(now, pwrup))
+ break;
+ msleep(20);
+ }
+
+ ret = qib_refresh_qsfp_cache(ppd, &qd->cache);
+
+ /*
+ * Need to change LE2 back to defaults if we couldn't
+ * read the cable type (to handle cable swaps), so do this
+ * even on failure to read cable information. We don't
+ * get here for QME, so IS_QME check not needed here.
+ */
+ if (!ret && !ppd->dd->cspec->r1) {
+ if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
+ le2 = LE2_QME;
+ else if (qd->cache.atten[1] >= qib_long_atten &&
+ QSFP_IS_CU(qd->cache.tech))
+ le2 = LE2_5m;
+ else
+ le2 = LE2_DEFAULT;
+ } else
le2 = LE2_DEFAULT;
- } else
- le2 = LE2_DEFAULT;
- ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
- init_txdds_table(ppd, 0);
+ ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
+ /*
+ * We always change parameteters, since we can choose
+ * values for cables without eeproms, and the cable may have
+ * changed from a cable with full or partial eeprom content
+ * to one with partial or no content.
+ */
+ init_txdds_table(ppd, 0);
+ /* The physical link is being re-enabled only when the
+ * previous state was DISABLED and the VALID bit is not
+ * set. This should only happen when the cable has been
+ * physically pulled. */
+ if (!ppd->cpspec->qsfp_data.modpresent &&
+ (ppd->lflags & (QIBL_LINKV | QIBL_IB_LINK_DISABLED))) {
+ ppd->cpspec->qsfp_data.modpresent = 1;
+ qib_set_ib_7322_lstate(ppd, 0,
+ QLOGIC_IB_IBCC_LINKINITCMD_SLEEP);
+ spin_lock_irqsave(&ppd->lflags_lock, flags);
+ ppd->lflags |= QIBL_LINKV;
+ spin_unlock_irqrestore(&ppd->lflags_lock, flags);
+ }
+ }
}
/*
/* now change the IBC and serdes, overriding generic */
init_txdds_table(ppd, 1);
/* Re-enable the physical state machine on mezz boards
- * now that the correct settings have been set. */
+ * now that the correct settings have been set.
+ * QSFP boards are handles by the QSFP event handler */
if (IS_QMH(dd) || IS_QME(dd))
qib_set_ib_7322_lstate(ppd, 0,
QLOGIC_IB_IBCC_LINKINITCMD_SLEEP);
/* we always allocate at least 2048 bytes for eager buffers */
dd->rcvegrbufsize = max(mtu, 2048);
+ BUG_ON(!is_power_of_2(dd->rcvegrbufsize));
+ dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize);
qib_7322_tidtemplate(dd);
}
}
- /* Lookup serdes setting by cable type and attenuation */
+ /* Active cables don't have attenuation so we only set SERDES
+ * settings to account for the attenuation of the board traces. */
if (!override && QSFP_IS_ACTIVE(qd->tech)) {
*sdr_dds = txdds_sdr + ppd->dd->board_atten;
*ddr_dds = txdds_ddr + ppd->dd->board_atten;
u32 le_val, rxcaldone;
int chan, chan_done = (1 << SERDES_CHANS) - 1;
- /*
- * Initialize the Tx DDS tables. Also done every QSFP event,
- * for adapters with QSFP
- */
- init_txdds_table(ppd, 0);
-
/* Clear cmode-override, may be set from older driver */
ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 0 << 14, 1 << 14);
/* VGA output common mode */
ibsd_wr_allchans(ppd, 12, (3 << 2), BMASK(3, 2));
+ /*
+ * Initialize the Tx DDS tables. Also done every QSFP event,
+ * for adapters with QSFP
+ */
+ init_txdds_table(ppd, 0);
+
return 0;
}
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/idr.h>
+ #include <linux/module.h>
#include "qib.h"
#include "qib_common.h"
rcd->rcvegrbuf_chunks = (rcd->rcvegrcnt +
rcd->rcvegrbufs_perchunk - 1) /
rcd->rcvegrbufs_perchunk;
+ BUG_ON(!is_power_of_2(rcd->rcvegrbufs_perchunk));
+ rcd->rcvegrbufs_perchunk_shift =
+ ilog2(rcd->rcvegrbufs_perchunk);
}
return rcd;
}
if (rcd)
dd->f_rcvctrl(rcd->ppd, rcvmask, i);
}
+ dd->freectxts = dd->cfgctxts - dd->first_user_ctxt;
}
static void verify_interrupt(unsigned long opaque)
continue;
}
- /* let link come up, and enable IBC */
- spin_lock_irqsave(&ppd->lflags_lock, flags);
- ppd->lflags &= ~QIBL_IB_LINK_DISABLED;
- spin_unlock_irqrestore(&ppd->lflags_lock, flags);
portok++;
}
#include <rdma/ib_mad.h>
#include <rdma/ib_user_verbs.h>
#include <linux/io.h>
+ #include <linux/module.h>
#include <linux/utsname.h>
#include <linux/rculist.h>
#include <linux/mm.h>
+#include <linux/random.h>
#include "qib.h"
#include "qib_common.h"
-static unsigned int ib_qib_qp_table_size = 251;
+static unsigned int ib_qib_qp_table_size = 256;
module_param_named(qp_table_size, ib_qib_qp_table_size, uint, S_IRUGO);
MODULE_PARM_DESC(qp_table_size, "QP table size");
if (atomic_dec_return(&mcast->refcount) <= 1)
wake_up(&mcast->wait);
} else {
- qp = qib_lookup_qpn(ibp, qp_num);
- if (!qp)
- goto drop;
+ if (rcd->lookaside_qp) {
+ if (rcd->lookaside_qpn != qp_num) {
+ if (atomic_dec_and_test(
+ &rcd->lookaside_qp->refcount))
+ wake_up(
+ &rcd->lookaside_qp->wait);
+ rcd->lookaside_qp = NULL;
+ }
+ }
+ if (!rcd->lookaside_qp) {
+ qp = qib_lookup_qpn(ibp, qp_num);
+ if (!qp)
+ goto drop;
+ rcd->lookaside_qp = qp;
+ rcd->lookaside_qpn = qp_num;
+ } else
+ qp = rcd->lookaside_qp;
ibp->n_unicast_rcv++;
qib_qp_rcv(rcd, hdr, lnh == QIB_LRH_GRH, data, tlen, qp);
- /*
- * Notify qib_destroy_qp() if it is waiting
- * for us to finish.
- */
- if (atomic_dec_and_test(&qp->refcount))
- wake_up(&qp->wait);
}
return;
ibp->z_excessive_buffer_overrun_errors =
cntrs.excessive_buffer_overrun_errors;
ibp->z_vl15_dropped = cntrs.vl15_dropped;
+ RCU_INIT_POINTER(ibp->qp0, NULL);
+ RCU_INIT_POINTER(ibp->qp1, NULL);
}
/**
int ret;
dev->qp_table_size = ib_qib_qp_table_size;
- dev->qp_table = kzalloc(dev->qp_table_size * sizeof *dev->qp_table,
+ get_random_bytes(&dev->qp_rnd, sizeof(dev->qp_rnd));
+ dev->qp_table = kmalloc(dev->qp_table_size * sizeof *dev->qp_table,
GFP_KERNEL);
if (!dev->qp_table) {
ret = -ENOMEM;
goto err_qpt;
}
+ for (i = 0; i < dev->qp_table_size; i++)
+ RCU_INIT_POINTER(dev->qp_table[i], NULL);
for (i = 0; i < dd->num_pports; i++)
init_ibport(ppd + i);
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+ #include <linux/moduleparam.h>
#include "ipoib.h"
ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
for (i = 0; i < frags; ++i)
- ib_dma_unmap_single(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE);
+ ib_dma_unmap_page(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE);
}
static int ipoib_cm_post_receive_srq(struct net_device *dev, int id)
ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_CM_HEAD_SIZE, DMA_FROM_DEVICE);
for (; i > 0; --i)
- ib_dma_unmap_single(priv->ca, mapping[i], PAGE_SIZE, DMA_FROM_DEVICE);
+ ib_dma_unmap_page(priv->ca, mapping[i], PAGE_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
return NULL;
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_srq_init_attr srq_init_attr = {
+ .srq_type = IB_SRQT_BASIC,
.attr = {
.max_wr = ipoib_recvq_size,
.max_sge = max_sge
struct file_operations;
#include <linux/debugfs.h>
+ #include <linux/export.h>
#include "ipoib.h"
gid_buf, path.pathrec.dlid ? "yes" : "no");
if (path.pathrec.dlid) {
- rate = ib_rate_to_mult(path.pathrec.rate) * 25;
+ rate = ib_rate_to_mbps(path.pathrec.rate);
seq_printf(file,
" DLID: 0x%04x\n"
" SL: %12d\n"
- " rate: %*d%s Gb/sec\n",
+ " rate: %8d.%d Gb/sec\n",
be16_to_cpu(path.pathrec.dlid),
path.pathrec.sl,
- 10 - ((rate % 10) ? 2 : 0),
- rate / 10, rate % 10 ? ".5" : "");
+ rate / 1000, rate % 1000);
}
seq_putc(file, '\n');
#include <linux/scatterlist.h>
#include <linux/delay.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <net/sock.h>
tx_desc->tx_sg[0].length = ISER_HEADERS_LEN;
tx_desc->tx_sg[0].lkey = device->mr->lkey;
- iser_task->headers_initialized = 1;
iser_task->iser_conn = iser_conn;
return 0;
}
{
struct iscsi_iser_task *iser_task = task->dd_data;
- if (!iser_task->headers_initialized)
- if (iser_initialize_task_headers(task, &iser_task->desc))
+ if (iser_initialize_task_headers(task, &iser_task->desc))
return -ENOMEM;
/* mgmt task */
static void iscsi_iser_cleanup_task(struct iscsi_task *task)
{
struct iscsi_iser_task *iser_task = task->dd_data;
+ struct iser_tx_desc *tx_desc = &iser_task->desc;
+
+ struct iscsi_iser_conn *iser_conn = task->conn->dd_data;
+ struct iser_device *device = iser_conn->ib_conn->device;
+
+ ib_dma_unmap_single(device->ib_device,
+ tx_desc->dma_addr, ISER_HEADERS_LEN, DMA_TO_DEVICE);
/* mgmt tasks do not need special cleanup */
if (!task->sc)
#include <linux/mfd/asic3.h>
#include <linux/mfd/core.h>
+ #include <linux/module.h>
/*
* The HTC ASIC3 LED GPIOs are inputs, not outputs.
}
led->cdev->name = led->name;
- led->cdev->default_trigger = led->default_trigger;
+ led->cdev->flags = LED_CORE_SUSPENDRESUME;
led->cdev->brightness_set = brightness_set;
led->cdev->blink_set = blink_set;
+ led->cdev->default_trigger = led->default_trigger;
ret = led_classdev_register(&pdev->dev, led->cdev);
if (ret < 0)
return mfd_cell_disable(pdev);
}
+static int asic3_led_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct mfd_cell *cell = mfd_get_cell(pdev);
+ int ret;
+
+ ret = 0;
+ if (cell->suspend)
+ ret = (*cell->suspend)(pdev);
+
+ return ret;
+}
+
+static int asic3_led_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct mfd_cell *cell = mfd_get_cell(pdev);
+ int ret;
+
+ ret = 0;
+ if (cell->resume)
+ ret = (*cell->resume)(pdev);
+
+ return ret;
+}
+
+static const struct dev_pm_ops asic3_led_pm_ops = {
+ .suspend = asic3_led_suspend,
+ .resume = asic3_led_resume,
+};
+
static struct platform_driver asic3_led_driver = {
.probe = asic3_led_probe,
.remove = __devexit_p(asic3_led_remove),
.driver = {
.name = "leds-asic3",
.owner = THIS_MODULE,
+ .pm = &asic3_led_pm_ops,
},
};
#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
+ #include <linux/module.h>
#include <asm/gpio.h>
}
led_dat->cdev.brightness_set = gpio_led_set;
if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP)
- state = !!gpio_get_value(led_dat->gpio) ^ led_dat->active_low;
+ state = !!gpio_get_value_cansleep(led_dat->gpio) ^ led_dat->active_low;
else
state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
led_dat->cdev.brightness = state ? LED_FULL : LED_OFF;
#include <linux/led-lm3530.h>
#include <linux/types.h>
#include <linux/regulator/consumer.h>
+ #include <linux/module.h>
#define LM3530_LED_DEV "lcd-backlight"
#define LM3530_NAME "lm3530-led"
err_reg_init:
regulator_put(drvdata->regulator);
err_regulator_get:
- i2c_set_clientdata(client, NULL);
kfree(drvdata);
err_out:
return err;
static struct i2c_driver lm3530_i2c_driver = {
.probe = lm3530_probe,
- .remove = lm3530_remove,
+ .remove = __devexit_p(lm3530_remove),
.id_table = lm3530_id,
.driver = {
.name = LM3530_NAME,
#include <linux/dm-dirty-log.h>
#include <linux/device-mapper.h>
#include <linux/dm-log-userspace.h>
+ #include <linux/module.h>
#include "dm-log-userspace-transfer.h"
struct log_c {
struct dm_target *ti;
+ struct dm_dev *log_dev;
uint32_t region_size;
region_t region_count;
uint64_t luid;
* <UUID> <other args>
* Where 'other args' is the userspace implementation specific log
* arguments. An example might be:
- * <UUID> clustered
_disk <arg count> <log dev> <region_size> [[no]sync]
+ * <UUID> clustered
-disk <arg count> <log dev> <region_size> [[no]sync]
*
* So, this module will strip off the <UUID> for identification purposes
* when communicating with userspace about a log; but will pass on everything
struct log_c *lc = NULL;
uint64_t rdata;
size_t rdata_size = sizeof(rdata);
+ char *devices_rdata = NULL;
+ size_t devices_rdata_size = DM_NAME_LEN;
if (argc < 3) {
DMWARN("Too few arguments to userspace dirty log");
return -EINVAL;
}
- lc = kmalloc(sizeof(*lc), GFP_KERNEL);
+ lc = kzalloc(sizeof(*lc), GFP_KERNEL);
if (!lc) {
DMWARN("Unable to allocate userspace log context.");
return -ENOMEM;
return str_size;
}
- /* Send table string */
+ devices_rdata = kzalloc(devices_rdata_size, GFP_KERNEL);
+ if (!devices_rdata) {
+ DMERR("Failed to allocate memory for device information");
+ r = -ENOMEM;
+ goto out;
+ }
+
+ /*
+ * Send table string and get back any opened device.
+ */
r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_CTR,
- ctr_str, str_size, NULL, NULL);
+ ctr_str, str_size,
+ devices_rdata, &devices_rdata_size);
if (r < 0) {
if (r == -ESRCH)
lc->region_size = (uint32_t)rdata;
lc->region_count = dm_sector_div_up(ti->len, lc->region_size);
+ if (devices_rdata_size) {
+ if (devices_rdata[devices_rdata_size - 1] != '\0') {
+ DMERR("DM_ULOG_CTR device return string not properly terminated");
+ r = -EINVAL;
+ goto out;
+ }
+ r = dm_get_device(ti, devices_rdata,
+ dm_table_get_mode(ti->table), &lc->log_dev);
+ if (r)
+ DMERR("Failed to register %s with device-mapper",
+ devices_rdata);
+ }
out:
+ kfree(devices_rdata);
if (r) {
kfree(lc);
kfree(ctr_str);
NULL, 0,
NULL, NULL);
+ if (lc->log_dev)
+ dm_put_device(lc->ti, lc->log_dev);
+
kfree(lc->usr_argv_str);
kfree(lc);
*/
#include <linux/slab.h>
+ #include <linux/module.h>
#include "md.h"
#include "raid1.h"
struct raid_set *rs = ti->private;
unsigned raid_param_cnt = 1; /* at least 1 for chunksize */
unsigned sz = 0;
- int i;
+ int i, array_in_sync = 0;
sector_t sync;
switch (type) {
case STATUSTYPE_INFO:
DMEMIT("%s %d ", rs->raid_type->name, rs->md.raid_disks);
- for (i = 0; i < rs->md.raid_disks; i++) {
- if (test_bit(Faulty, &rs->dev[i].rdev.flags))
- DMEMIT("D");
- else if (test_bit(In_sync, &rs->dev[i].rdev.flags))
- DMEMIT("A");
- else
- DMEMIT("a");
- }
-
if (test_bit(MD_RECOVERY_RUNNING, &rs->md.recovery))
sync = rs->md.curr_resync_completed;
else
sync = rs->md.recovery_cp;
- if (sync > rs->md.resync_max_sectors)
+ if (sync >= rs->md.resync_max_sectors) {
+ array_in_sync = 1;
sync = rs->md.resync_max_sectors;
+ } else {
+ /*
+ * The array may be doing an initial sync, or it may
+ * be rebuilding individual components. If all the
+ * devices are In_sync, then it is the array that is
+ * being initialized.
+ */
+ for (i = 0; i < rs->md.raid_disks; i++)
+ if (!test_bit(In_sync, &rs->dev[i].rdev.flags))
+ array_in_sync = 1;
+ }
+ /*
+ * Status characters:
+ * 'D' = Dead/Failed device
+ * 'a' = Alive but not in-sync
+ * 'A' = Alive and in-sync
+ */
+ for (i = 0; i < rs->md.raid_disks; i++) {
+ if (test_bit(Faulty, &rs->dev[i].rdev.flags))
+ DMEMIT("D");
+ else if (!array_in_sync ||
+ !test_bit(In_sync, &rs->dev[i].rdev.flags))
+ DMEMIT("a");
+ else
+ DMEMIT("A");
+ }
+ /*
+ * In-sync ratio:
+ * The in-sync ratio shows the progress of:
+ * - Initializing the array
+ * - Rebuilding a subset of devices of the array
+ * The user can distinguish between the two by referring
+ * to the status characters.
+ */
DMEMIT(" %llu/%llu",
(unsigned long long) sync,
(unsigned long long) rs->md.resync_max_sectors);
#define MaxFault 50
#include <linux/blkdev.h>
+ #include <linux/module.h>
#include <linux/raid/md_u.h>
#include <linux/slab.h>
#include "md.h"
conf->nfaults = n+1;
}
-static int make_request(struct mddev *mddev, struct bio *bio)
+static void make_request(struct mddev *mddev, struct bio *bio)
{
struct faulty_conf *conf = mddev->private;
int failit = 0;
* just fail immediately
*/
bio_endio(bio, -EIO);
- return 0;
+ return;
}
if (check_sector(conf, bio->bi_sector, bio->bi_sector+(bio->bi_size>>9),
}
if (failit) {
struct bio *b = bio_clone_mddev(bio, GFP_NOIO, mddev);
+
b->bi_bdev = conf->rdev->bdev;
b->bi_private = bio;
b->bi_end_io = faulty_fail;
- generic_make_request(b);
- return 0;
- } else {
+ bio = b;
+ } else
bio->bi_bdev = conf->rdev->bdev;
- return 1;
- }
+
+ generic_make_request(bio);
}
static void status(struct seq_file *seq, struct mddev *mddev)
#include <linux/blkdev.h>
#include <linux/raid/md_u.h>
#include <linux/seq_file.h>
+ #include <linux/module.h>
#include <linux/slab.h>
#include "md.h"
#include "linear.h"
return 0;
}
-static int linear_make_request (struct mddev *mddev, struct bio *bio)
+static void linear_make_request(struct mddev *mddev, struct bio *bio)
{
struct dev_info *tmp_dev;
sector_t start_sector;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
rcu_read_lock();
(unsigned long long)start_sector);
rcu_read_unlock();
bio_io_error(bio);
- return 0;
+ return;
}
if (unlikely(bio->bi_sector + (bio->bi_size >> 9) >
tmp_dev->end_sector)) {
bp = bio_split(bio, end_sector - bio->bi_sector);
- if (linear_make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (linear_make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
+ linear_make_request(mddev, &bp->bio1);
+ linear_make_request(mddev, &bp->bio2);
bio_pair_release(bp);
- return 0;
+ return;
}
bio->bi_bdev = tmp_dev->rdev->bdev;
bio->bi_sector = bio->bi_sector - start_sector
+ tmp_dev->rdev->data_offset;
rcu_read_unlock();
-
- return 1;
+ generic_make_request(bio);
}
static void linear_status (struct seq_file *seq, struct mddev *mddev)
#include <linux/hdreg.h>
#include <linux/proc_fs.h>
#include <linux/random.h>
+ #include <linux/module.h>
#include <linux/reboot.h>
#include <linux/file.h>
#include <linux/compat.h>
* call has finished, the bio has been linked into some internal structure
* and so is visible to ->quiesce(), so we don't need the refcount any more.
*/
-static int md_make_request(struct request_queue *q, struct bio *bio)
+static void md_make_request(struct request_queue *q, struct bio *bio)
{
const int rw = bio_data_dir(bio);
struct mddev *mddev = q->queuedata;
- int rv;
int cpu;
unsigned int sectors;
if (mddev == NULL || mddev->pers == NULL
|| !mddev->ready) {
bio_io_error(bio);
- return 0;
+ return;
}
smp_rmb(); /* Ensure implications of 'active' are visible */
rcu_read_lock();
* go away inside make_request
*/
sectors = bio_sectors(bio);
- rv = mddev->pers->make_request(mddev, bio);
+ mddev->pers->make_request(mddev, bio);
cpu = part_stat_lock();
part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
wake_up(&mddev->sb_wait);
-
- return rv;
}
/* mddev_suspend makes sure no new requests are submitted
bio_endio(bio, 0);
else {
bio->bi_rw &= ~REQ_FLUSH;
- if (mddev->pers->make_request(mddev, bio))
- generic_make_request(bio);
+ mddev->pers->make_request(mddev, bio);
}
mddev->flush_bio = NULL;
*/
#include <linux/blkdev.h>
+ #include <linux/module.h>
#include <linux/raid/md_u.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
rdev_dec_pending(rdev, conf->mddev);
}
-static int multipath_make_request(struct mddev *mddev, struct bio * bio)
+static void multipath_make_request(struct mddev *mddev, struct bio * bio)
{
struct mpconf *conf = mddev->private;
struct multipath_bh * mp_bh;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
mp_bh = mempool_alloc(conf->pool, GFP_NOIO);
if (mp_bh->path < 0) {
bio_endio(bio, -EIO);
mempool_free(mp_bh, conf->pool);
- return 0;
+ return;
}
multipath = conf->multipaths + mp_bh->path;
mp_bh->bio.bi_end_io = multipath_end_request;
mp_bh->bio.bi_private = mp_bh;
generic_make_request(&mp_bh->bio);
- return 0;
+ return;
}
static void multipath_status (struct seq_file *seq, struct mddev *mddev)
#include <linux/blkdev.h>
#include <linux/seq_file.h>
+ #include <linux/module.h>
#include <linux/slab.h>
#include "md.h"
#include "raid0.h"
}
}
-static int raid0_make_request(struct mddev *mddev, struct bio *bio)
+static void raid0_make_request(struct mddev *mddev, struct bio *bio)
{
unsigned int chunk_sects;
sector_t sector_offset;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
chunk_sects = mddev->chunk_sectors;
else
bp = bio_split(bio, chunk_sects -
sector_div(sector, chunk_sects));
- if (raid0_make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (raid0_make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
-
+ raid0_make_request(mddev, &bp->bio1);
+ raid0_make_request(mddev, &bp->bio2);
bio_pair_release(bp);
- return 0;
+ return;
}
sector_offset = bio->bi_sector;
bio->bi_bdev = tmp_dev->bdev;
bio->bi_sector = sector_offset + zone->dev_start +
tmp_dev->data_offset;
- /*
- * Let the main block layer submit the IO and resolve recursion:
- */
- return 1;
+
+ generic_make_request(bio);
+ return;
bad_map:
printk("md/raid0:%s: make_request bug: can't convert block across chunks"
(unsigned long long)bio->bi_sector, bio->bi_size >> 10);
bio_io_error(bio);
- return 0;
+ return;
}
static void raid0_status(struct seq_file *seq, struct mddev *mddev)
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
+ #include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/ratelimit.h>
#include "md.h"
pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
}
-static int make_request(struct mddev *mddev, struct bio * bio)
+static void make_request(struct mddev *mddev, struct bio * bio)
{
struct r1conf *conf = mddev->private;
struct mirror_info *mirror;
if (rdisk < 0) {
/* couldn't find anywhere to read from */
raid_end_bio_io(r1_bio);
- return 0;
+ return;
}
mirror = conf->mirrors + rdisk;
goto read_again;
} else
generic_make_request(read_bio);
- return 0;
+ return;
}
/*
if (do_sync || !bitmap || !plugged)
md_wakeup_thread(mddev->thread);
-
- return 0;
}
static void status(struct seq_file *seq, struct mddev *mddev)
bio->bi_next = NULL;
bio->bi_flags &= ~(BIO_POOL_MASK-1);
bio->bi_flags |= 1 << BIO_UPTODATE;
- bio->bi_comp_cpu = -1;
bio->bi_rw = READ;
bio->bi_vcnt = 0;
bio->bi_idx = 0;
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
+ #include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/ratelimit.h>
#include "md.h"
spin_unlock_irq(&conf->resync_lock);
}
-static int make_request(struct mddev *mddev, struct bio * bio)
+static void make_request(struct mddev *mddev, struct bio * bio)
{
struct r10conf *conf = mddev->private;
struct mirror_info *mirror;
if (unlikely(bio->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bio);
- return 0;
+ return;
}
/* If this request crosses a chunk boundary, we need to
conf->nr_waiting++;
spin_unlock_irq(&conf->resync_lock);
- if (make_request(mddev, &bp->bio1))
- generic_make_request(&bp->bio1);
- if (make_request(mddev, &bp->bio2))
- generic_make_request(&bp->bio2);
+ make_request(mddev, &bp->bio1);
+ make_request(mddev, &bp->bio2);
spin_lock_irq(&conf->resync_lock);
conf->nr_waiting--;
spin_unlock_irq(&conf->resync_lock);
bio_pair_release(bp);
- return 0;
+ return;
bad_map:
printk("md/raid10:%s: make_request bug: can't convert block across chunks"
" or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2,
(unsigned long long)bio->bi_sector, bio->bi_size >> 10);
bio_io_error(bio);
- return 0;
+ return;
}
md_write_start(mddev, bio);
slot = r10_bio->read_slot;
if (disk < 0) {
raid_end_bio_io(r10_bio);
- return 0;
+ return;
}
mirror = conf->mirrors + disk;
goto read_again;
} else
generic_make_request(read_bio);
- return 0;
+ return;
}
/*
if (do_sync || !mddev->bitmap || !plugged)
md_wakeup_thread(mddev->thread);
- return 0;
}
static void status(struct seq_file *seq, struct mddev *mddev)
struct mirror_info *p = &conf->mirrors[mirror];
if (p->recovery_disabled == mddev->recovery_disabled)
continue;
- if (!p->rdev)
+ if (p->rdev)
continue;
disk_stack_limits(mddev->gendisk, rdev->bdev,
#include <linux/kthread.h>
#include <linux/raid/pq.h>
#include <linux/async_tx.h>
+ #include <linux/module.h>
#include <linux/async.h>
#include <linux/seq_file.h>
#include <linux/cpu.h>
return sh;
}
-static int make_request(struct mddev *mddev, struct bio * bi)
+static void make_request(struct mddev *mddev, struct bio * bi)
{
struct r5conf *conf = mddev->private;
int dd_idx;
if (unlikely(bi->bi_rw & REQ_FLUSH)) {
md_flush_request(mddev, bi);
- return 0;
+ return;
}
md_write_start(mddev, bi);
if (rw == READ &&
mddev->reshape_position == MaxSector &&
chunk_aligned_read(mddev,bi))
- return 0;
+ return;
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bi->bi_sector + (bi->bi_size>>9);
bio_endio(bi, 0);
}
-
- return 0;
}
static sector_t raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks);
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <media/saa7146.h>
+ #include <linux/module.h>
LIST_HEAD(saa7146_devices);
DEFINE_MUTEX(saa7146_devices_lock);
{
int i = 0;
- INFO((" @ %li jiffies:\n",jiffies));
- for(i = 0; i <= 0x148; i+=4) {
- printk("0x%03x: 0x%08x\n",i,saa7146_read(dev,i));
- }
+ pr_info(" @ %li jiffies:\n", jiffies);
+ for (i = 0; i <= 0x148; i += 4)
+ pr_info("0x%03x: 0x%08x\n", i, saa7146_read(dev, i));
}
#endif
if (saa7146_read(dev, MC2) & 2)
break;
if (err) {
- printk(KERN_ERR "%s: %s timed out while waiting for "
- "registers getting programmed\n",
- dev->name, __func__);
+ pr_err("%s: %s timed out while waiting for registers getting programmed\n",
+ dev->name, __func__);
return -ETIMEDOUT;
}
msleep(1);
break;
saa7146_read(dev, MC2);
if (err) {
- DEB_S(("%s: %s timed out while waiting for transfer "
- "completion\n", dev->name, __func__));
+ DEB_S("%s: %s timed out while waiting for transfer completion\n",
+ dev->name, __func__);
return -ETIMEDOUT;
}
msleep(1);
if (saa7146_read(dev, MC2) & 2)
break;
if (!loops--) {
- printk(KERN_ERR "%s: %s timed out while waiting for "
- "registers getting programmed\n",
- dev->name, __func__);
+ pr_err("%s: %s timed out while waiting for registers getting programmed\n",
+ dev->name, __func__);
return -ETIMEDOUT;
}
udelay(1);
break;
saa7146_read(dev, MC2);
if (!loops--) {
- DEB_S(("%s: %s timed out while waiting for transfer "
- "completion\n", dev->name, __func__));
+ DEB_S("%s: %s timed out while waiting for transfer completion\n",
+ dev->name, __func__);
return -ETIMEDOUT;
}
udelay(5);
ptr = pt->cpu;
for (i = 0; i < sglen; i++, list++) {
/*
- printk("i:%d, adr:0x%08x, len:%d, offset:%d\n", i,sg_dma_address(list), sg_dma_len(list), list->offset);
+ pr_debug("i:%d, adr:0x%08x, len:%d, offset:%d\n",
+ i, sg_dma_address(list), sg_dma_len(list),
+ list->offset);
*/
for (p = 0; p * 4096 < list->length; p++, ptr++) {
*ptr = cpu_to_le32(sg_dma_address(list) + p * 4096);
/*
ptr = pt->cpu;
- printk("offset: %d\n",pt->offset);
+ pr_debug("offset: %d\n", pt->offset);
for(i=0;i<5;i++) {
- printk("ptr1 %d: 0x%08x\n",i,ptr[i]);
+ pr_debug("ptr1 %d: 0x%08x\n", i, ptr[i]);
}
*/
return 0;
}
}
if (0 != (isr & (MASK_27))) {
- DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
+ DEB_INT("irq: RPS0 (0x%08x)\n", isr);
if (dev->vv_data && dev->vv_callback)
dev->vv_callback(dev,isr);
isr &= ~MASK_27;
} else {
u32 psr = saa7146_read(dev, PSR);
u32 ssr = saa7146_read(dev, SSR);
- printk(KERN_WARNING "%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n",
- dev->name, isr, psr, ssr);
+ pr_warn("%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n",
+ dev->name, isr, psr, ssr);
}
isr &= ~(MASK_16|MASK_17);
}
if( 0 != isr ) {
- ERR(("warning: interrupt enabled, but not handled properly.(0x%08x)\n",isr));
- ERR(("disabling interrupt source(s)!\n"));
+ ERR("warning: interrupt enabled, but not handled properly.(0x%08x)\n",
+ isr);
+ ERR("disabling interrupt source(s)!\n");
SAA7146_IER_DISABLE(dev,isr);
}
saa7146_write(dev, ISR, ack_isr);
/* clear out mem for sure */
dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL);
if (!dev) {
- ERR(("out of memory.\n"));
+ ERR("out of memory\n");
goto out;
}
- DEB_EE(("pci:%p\n",pci));
+ DEB_EE("pci:%p\n", pci);
err = pci_enable_device(pci);
if (err < 0) {
- ERR(("pci_enable_device() failed.\n"));
+ ERR("pci_enable_device() failed\n");
goto err_free;
}
dev->mem = ioremap(pci_resource_start(pci, 0),
pci_resource_len(pci, 0));
if (!dev->mem) {
- ERR(("ioremap() failed.\n"));
+ ERR("ioremap() failed\n");
err = -ENODEV;
goto err_release;
}
err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED | IRQF_DISABLED,
dev->name, dev);
if (err < 0) {
- ERR(("request_irq() failed.\n"));
+ ERR("request_irq() failed\n");
goto err_unmap;
}
/* create a nice device name */
sprintf(dev->name, "saa7146 (%d)", saa7146_num);
- INFO(("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x).\n", dev->mem, dev->revision, pci->irq, pci->subsystem_vendor, pci->subsystem_device));
+ pr_info("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x)\n",
+ dev->mem, dev->revision, pci->irq,
+ pci->subsystem_vendor, pci->subsystem_device);
dev->ext = ext;
mutex_init(&dev->v4l2_lock);
err = -ENODEV;
if (ext->probe && ext->probe(dev)) {
- DEB_D(("ext->probe() failed for %p. skipping device.\n",dev));
+ DEB_D("ext->probe() failed for %p. skipping device.\n", dev);
goto err_free_i2c;
}
if (ext->attach(dev, pci_ext)) {
- DEB_D(("ext->attach() failed for %p. skipping device.\n",dev));
+ DEB_D("ext->attach() failed for %p. skipping device.\n", dev);
goto err_free_i2c;
}
/* V4L extensions will set the pci drvdata to the v4l2_device in the
{ NULL, 0 }
}, *p;
- DEB_EE(("dev:%p\n",dev));
+ DEB_EE("dev:%p\n", dev);
dev->ext->detach(dev);
/* Zero the PCI drvdata after use. */
int saa7146_register_extension(struct saa7146_extension* ext)
{
- DEB_EE(("ext:%p\n",ext));
+ DEB_EE("ext:%p\n", ext);
ext->driver.name = ext->name;
ext->driver.id_table = ext->pci_tbl;
ext->driver.probe = saa7146_init_one;
ext->driver.remove = saa7146_remove_one;
- printk("saa7146: register extension '%s'.\n",ext->name);
+ pr_info("register extension '%s'\n", ext->name);
return pci_register_driver(&ext->driver);
}
int saa7146_unregister_extension(struct saa7146_extension* ext)
{
- DEB_EE(("ext:%p\n",ext));
- printk("saa7146: unregister extension '%s'.\n",ext->name);
+ DEB_EE("ext:%p\n", ext);
+ pr_info("unregister extension '%s'\n", ext->name);
pci_unregister_driver(&ext->driver);
return 0;
}
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <media/saa7146_vv.h>
+ #include <linux/module.h>
/****************************************************************************/
/* resource management functions, shamelessly stolen from saa7134 driver */
struct saa7146_vv *vv = dev->vv_data;
if (fh->resources & bit) {
- DEB_D(("already allocated! want: 0x%02x, cur:0x%02x\n",bit,vv->resources));
+ DEB_D("already allocated! want: 0x%02x, cur:0x%02x\n",
+ bit, vv->resources);
/* have it already allocated */
return 1;
}
/* is it free? */
if (vv->resources & bit) {
- DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit));
+ DEB_D("locked! vv->resources:0x%02x, we want:0x%02x\n",
+ vv->resources, bit);
/* no, someone else uses it */
return 0;
}
/* it's free, grab it */
- fh->resources |= bit;
+ fh->resources |= bit;
vv->resources |= bit;
- DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources));
+ DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources);
return 1;
}
BUG_ON((fh->resources & bits) != bits);
- fh->resources &= ~bits;
+ fh->resources &= ~bits;
vv->resources &= ~bits;
- DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources));
+ DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources);
}
struct saa7146_buf *buf)
{
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- DEB_EE(("dev:%p, buf:%p\n",dev,buf));
+ DEB_EE("dev:%p, buf:%p\n", dev, buf);
BUG_ON(in_interrupt());
struct saa7146_buf *buf)
{
assert_spin_locked(&dev->slock);
- DEB_EE(("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf));
+ DEB_EE("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf);
BUG_ON(!q);
if (NULL == q->curr) {
q->curr = buf;
- DEB_D(("immediately activating buffer %p\n", buf));
+ DEB_D("immediately activating buffer %p\n", buf);
buf->activate(dev,buf,NULL);
} else {
list_add_tail(&buf->vb.queue,&q->queue);
buf->vb.state = VIDEOBUF_QUEUED;
- DEB_D(("adding buffer %p to queue. (active buffer present)\n", buf));
+ DEB_D("adding buffer %p to queue. (active buffer present)\n",
+ buf);
}
return 0;
}
int state)
{
assert_spin_locked(&dev->slock);
- DEB_EE(("dev:%p, dmaq:%p, state:%d\n", dev, q, state));
- DEB_EE(("q->curr:%p\n",q->curr));
+ DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state);
+ DEB_EE("q->curr:%p\n", q->curr);
BUG_ON(!q->curr);
/* finish current buffer */
if (NULL == q->curr) {
- DEB_D(("aiii. no current buffer\n"));
+ DEB_D("aiii. no current buffer\n");
return;
}
BUG_ON(!q);
- DEB_INT(("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi));
+ DEB_INT("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi);
assert_spin_locked(&dev->slock);
if (!list_empty(&q->queue)) {
if (!list_empty(&q->queue))
next = list_entry(q->queue.next,struct saa7146_buf, vb.queue);
q->curr = buf;
- DEB_INT(("next buffer: buf:%p, prev:%p, next:%p\n", buf, q->queue.prev,q->queue.next));
+ DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n",
+ buf, q->queue.prev, q->queue.next);
buf->activate(dev,buf,next);
} else {
- DEB_INT(("no next buffer. stopping.\n"));
+ DEB_INT("no next buffer. stopping.\n");
if( 0 != vbi ) {
/* turn off video-dma3 */
saa7146_write(dev,MC1, MASK_20);
struct saa7146_dev *dev = q->dev;
unsigned long flags;
- DEB_EE(("dev:%p, dmaq:%p\n", dev, q));
+ DEB_EE("dev:%p, dmaq:%p\n", dev, q);
spin_lock_irqsave(&dev->slock,flags);
if (q->curr) {
- DEB_D(("timeout on %p\n", q->curr));
+ DEB_D("timeout on %p\n", q->curr);
saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR);
}
enum v4l2_buf_type type;
- DEB_EE(("file:%p, dev:%s\n", file, video_device_node_name(vdev)));
+ DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev));
if (mutex_lock_interruptible(&saa7146_devices_lock))
return -ERESTARTSYS;
- DEB_D(("using: %p\n",dev));
+ DEB_D("using: %p\n", dev);
type = vdev->vfl_type == VFL_TYPE_GRABBER
? V4L2_BUF_TYPE_VIDEO_CAPTURE
/* check if an extension is registered */
if( NULL == dev->ext ) {
- DEB_S(("no extension registered for this device.\n"));
+ DEB_S("no extension registered for this device\n");
result = -ENODEV;
goto out;
}
/* allocate per open data */
fh = kzalloc(sizeof(*fh),GFP_KERNEL);
if (NULL == fh) {
- DEB_S(("cannot allocate memory for per open data.\n"));
+ DEB_S("cannot allocate memory for per open data\n");
result = -ENOMEM;
goto out;
}
fh->type = type;
if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
- DEB_S(("initializing vbi...\n"));
+ DEB_S("initializing vbi...\n");
if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
result = saa7146_vbi_uops.open(dev,file);
if (dev->ext_vv_data->vbi_fops.open)
dev->ext_vv_data->vbi_fops.open(file);
} else {
- DEB_S(("initializing video...\n"));
+ DEB_S("initializing video...\n");
result = saa7146_video_uops.open(dev,file);
}
struct saa7146_fh *fh = file->private_data;
struct saa7146_dev *dev = fh->dev;
- DEB_EE(("file:%p\n", file));
+ DEB_EE("file:%p\n", file);
if (mutex_lock_interruptible(&saa7146_devices_lock))
return -ERESTARTSYS;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
- DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",file, vma));
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",
+ file, vma);
q = &fh->video_q;
break;
}
case V4L2_BUF_TYPE_VBI_CAPTURE: {
- DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",file, vma));
+ DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",
+ file, vma);
q = &fh->vbi_q;
break;
}
struct videobuf_buffer *buf = NULL;
struct videobuf_queue *q;
- DEB_EE(("file:%p, poll:%p\n",file, wait));
+ DEB_EE("file:%p, poll:%p\n", file, wait);
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
if( 0 == fh->vbi_q.streaming )
return videobuf_poll_stream(file, &fh->vbi_q, wait);
q = &fh->vbi_q;
} else {
- DEB_D(("using video queue.\n"));
+ DEB_D("using video queue\n");
q = &fh->video_q;
}
buf = list_entry(q->stream.next, struct videobuf_buffer, stream);
if (!buf) {
- DEB_D(("buf == NULL!\n"));
+ DEB_D("buf == NULL!\n");
return POLLERR;
}
poll_wait(file, &buf->done, wait);
if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) {
- DEB_D(("poll succeeded!\n"));
+ DEB_D("poll succeeded!\n");
return POLLIN|POLLRDNORM;
}
- DEB_D(("nothing to poll for, buf->state:%d\n",buf->state));
+ DEB_D("nothing to poll for, buf->state:%d\n", buf->state);
return 0;
}
struct saa7146_fh *fh = file->private_data;
switch (fh->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
-// DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", file, data, (unsigned long)count));
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+/*
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun",
+ file, data, (unsigned long)count);
+*/
return saa7146_video_uops.read(file,data,count,ppos);
- }
- case V4L2_BUF_TYPE_VBI_CAPTURE: {
-// DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", file, data, (unsigned long)count));
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+/*
+ DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n",
+ file, data, (unsigned long)count);
+*/
if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
return saa7146_vbi_uops.read(file,data,count,ppos);
- else
- return -EINVAL;
- }
- break;
+ return -EINVAL;
default:
BUG();
return 0;
{
u32 isr = status;
- DEB_INT(("dev:%p, isr:0x%08x\n",dev,(u32)status));
+ DEB_INT("dev:%p, isr:0x%08x\n", dev, (u32)status);
if (0 != (isr & (MASK_27))) {
- DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
+ DEB_INT("irq: RPS0 (0x%08x)\n", isr);
saa7146_video_uops.irq_done(dev,isr);
}
if (0 != (isr & (MASK_28))) {
u32 mc2 = saa7146_read(dev, MC2);
if( 0 != (mc2 & MASK_15)) {
- DEB_INT(("irq: RPS1 vbi workaround (0x%08x).\n",isr));
+ DEB_INT("irq: RPS1 vbi workaround (0x%08x)\n", isr);
wake_up(&dev->vv_data->vbi_wq);
saa7146_write(dev,MC2, MASK_31);
return;
}
- DEB_INT(("irq: RPS1 (0x%08x).\n",isr));
+ DEB_INT("irq: RPS1 (0x%08x)\n", isr);
saa7146_vbi_uops.irq_done(dev,isr);
}
}
vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL);
if (vv == NULL) {
- ERR(("out of memory. aborting.\n"));
+ ERR("out of memory. aborting.\n");
return -ENOMEM;
}
ext_vv->ops = saa7146_video_ioctl_ops;
ext_vv->core_ops = &saa7146_video_ioctl_ops;
- DEB_EE(("dev:%p\n",dev));
+ DEB_EE("dev:%p\n", dev);
/* set default values for video parts of the saa7146 */
saa7146_write(dev, BCS_CTRL, 0x80400040);
vv->d_clipping.cpu_addr = pci_alloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle);
if( NULL == vv->d_clipping.cpu_addr ) {
- ERR(("out of memory. aborting.\n"));
+ ERR("out of memory. aborting.\n");
kfree(vv);
return -1;
}
{
struct saa7146_vv *vv = dev->vv_data;
- DEB_EE(("dev:%p\n",dev));
+ DEB_EE("dev:%p\n", dev);
v4l2_device_unregister(&dev->v4l2_dev);
pci_free_consistent(dev->pci, SAA7146_CLIPPING_MEM, vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle);
int err;
int i;
- DEB_EE(("dev:%p, name:'%s', type:%d\n",dev,name,type));
+ DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type);
// released by vfd->release
vfd = video_device_alloc();
err = video_register_device(vfd, type, -1);
if (err < 0) {
- ERR(("cannot register v4l2 device. skipping.\n"));
+ ERR("cannot register v4l2 device. skipping.\n");
video_device_release(vfd);
return err;
}
- INFO(("%s: registered device %s [v4l2]\n",
- dev->name, video_device_node_name(vfd)));
+ pr_info("%s: registered device %s [v4l2]\n",
+ dev->name, video_device_node_name(vfd));
*vid = vfd;
return 0;
int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev)
{
- DEB_EE(("dev:%p\n",dev));
+ DEB_EE("dev:%p\n", dev);
video_unregister_device(*vid);
*vid = NULL;
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
+ #include <linux/export.h>
#include <media/saa7146_vv.h>
static void calculate_output_format_register(struct saa7146_dev* saa, u32 palette, u32* clip_format)
int depth = sfmt->depth;
- DEB_CAP(("[size=%dx%d,fields=%s]\n",
- width,height,v4l2_field_names[field]));
+ DEB_CAP("[size=%dx%d,fields=%s]\n",
+ width, height, v4l2_field_names[field]);
if( bytesperline != 0) {
vdma1.pitch = bytesperline*2;
BUG_ON(0 == buf->pt[1].dma);
BUG_ON(0 == buf->pt[2].dma);
- DEB_CAP(("[size=%dx%d,fields=%s]\n",
- width,height,v4l2_field_names[field]));
+ DEB_CAP("[size=%dx%d,fields=%s]\n",
+ width, height, v4l2_field_names[field]);
/* fixme: look at bytesperline! */
struct saa7146_vv *vv = dev->vv_data;
u32 vdma1_prot_addr;
- DEB_CAP(("buf:%p, next:%p\n",buf,next));
+ DEB_CAP("buf:%p, next:%p\n", buf, next);
vdma1_prot_addr = saa7146_read(dev, PROT_ADDR1);
if( 0 == vdma1_prot_addr ) {
/* clear out beginning of streaming bit (rps register 0)*/
- DEB_CAP(("forcing sync to new frame\n"));
+ DEB_CAP("forcing sync to new frame\n");
saa7146_write(dev, MC2, MASK_27 );
}
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <media/saa7146_vv.h>
#include <media/v4l2-chip-ident.h>
+ #include <linux/module.h>
static int max_memory = 32;
}
}
- DEB_D(("unknown pixelformat:'%4.4s'\n",(char *)&fourcc));
+ DEB_D("unknown pixelformat:'%4.4s'\n", (char *)&fourcc);
return NULL;
}
struct v4l2_format fmt;
int ret = 0, err = 0;
- DEB_EE(("dev:%p, fh:%p\n",dev,fh));
+ DEB_EE("dev:%p, fh:%p\n", dev, fh);
/* check if we have overlay informations */
if( NULL == fh->ov.fh ) {
- DEB_D(("no overlay data available. try S_FMT first.\n"));
+ DEB_D("no overlay data available. try S_FMT first.\n");
return -EAGAIN;
}
/* check if streaming capture is running */
if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D(("streaming capture is active.\n"));
+ DEB_D("streaming capture is active\n");
return -EBUSY;
}
/* check if overlay is running */
if (IS_OVERLAY_ACTIVE(fh) != 0) {
if (vv->video_fh == fh) {
- DEB_D(("overlay is already active.\n"));
+ DEB_D("overlay is already active\n");
return 0;
}
- DEB_D(("overlay is already active in another open.\n"));
+ DEB_D("overlay is already active in another open\n");
return -EBUSY;
}
if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) {
- DEB_D(("cannot get necessary overlay resources\n"));
+ DEB_D("cannot get necessary overlay resources\n");
return -EBUSY;
}
fh->ov.win = fmt.fmt.win;
vv->ov_data = &fh->ov;
- DEB_D(("%dx%d+%d+%d %s field=%s\n",
- fh->ov.win.w.width,fh->ov.win.w.height,
- fh->ov.win.w.left,fh->ov.win.w.top,
- vv->ov_fmt->name,v4l2_field_names[fh->ov.win.field]));
+ DEB_D("%dx%d+%d+%d %s field=%s\n",
+ fh->ov.win.w.width, fh->ov.win.w.height,
+ fh->ov.win.w.left, fh->ov.win.w.top,
+ vv->ov_fmt->name, v4l2_field_names[fh->ov.win.field]);
if (0 != (ret = saa7146_enable_overlay(fh))) {
- DEB_D(("enabling overlay failed: %d\n",ret));
+ DEB_D("enabling overlay failed: %d\n", ret);
saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
return ret;
}
struct saa7146_dev *dev = fh->dev;
struct saa7146_vv *vv = dev->vv_data;
- DEB_EE(("dev:%p, fh:%p\n",dev,fh));
+ DEB_EE("dev:%p, fh:%p\n", dev, fh);
/* check if streaming capture is running */
if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D(("streaming capture is active.\n"));
+ DEB_D("streaming capture is active\n");
return -EBUSY;
}
/* check if overlay is running at all */
if ((vv->video_status & STATUS_OVERLAY) == 0) {
- DEB_D(("no active overlay.\n"));
+ DEB_D("no active overlay\n");
return 0;
}
if (vv->video_fh != fh) {
- DEB_D(("overlay is active, but in another open.\n"));
+ DEB_D("overlay is active, but in another open\n");
return -EBUSY;
}
int length = dma->sglen;
struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
- DEB_EE(("dev:%p, buf:%p, sg_len:%d\n",dev,buf,length));
+ DEB_EE("dev:%p, buf:%p, sg_len:%d\n", dev, buf, length);
if( 0 != IS_PLANAR(sfmt->trans)) {
struct saa7146_pgtable *pt1 = &buf->pt[0];
m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1;
o1 = size%PAGE_SIZE;
o2 = (size+(size/4))%PAGE_SIZE;
- DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2));
+ DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",
+ size, m1, m2, m3, o1, o2);
break;
}
case 16: {
m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1;
o1 = size%PAGE_SIZE;
o2 = (size+(size/2))%PAGE_SIZE;
- DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2));
+ DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",
+ size, m1, m2, m3, o1, o2);
break;
}
default: {
unsigned int resource;
int ret = 0, err = 0;
- DEB_EE(("dev:%p, fh:%p\n",dev,fh));
+ DEB_EE("dev:%p, fh:%p\n", dev, fh);
if ((vv->video_status & STATUS_CAPTURE) != 0) {
if (vv->video_fh == fh) {
- DEB_S(("already capturing.\n"));
+ DEB_S("already capturing\n");
return 0;
}
- DEB_S(("already capturing in another open.\n"));
+ DEB_S("already capturing in another open\n");
return -EBUSY;
}
if ((vv->video_status & STATUS_OVERLAY) != 0) {
- DEB_S(("warning: suspending overlay video for streaming capture.\n"));
+ DEB_S("warning: suspending overlay video for streaming capture\n");
vv->ov_suspend = vv->video_fh;
err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
if (0 != err) {
- DEB_D(("suspending video failed. aborting\n"));
+ DEB_D("suspending video failed. aborting\n");
return err;
}
}
ret = saa7146_res_get(fh, resource);
if (0 == ret) {
- DEB_S(("cannot get capture resource %d\n",resource));
+ DEB_S("cannot get capture resource %d\n", resource);
if (vv->ov_suspend != NULL) {
saa7146_start_preview(vv->ov_suspend);
vv->ov_suspend = NULL;
unsigned long flags;
unsigned int resource;
u32 dmas = 0;
- DEB_EE(("dev:%p, fh:%p\n",dev,fh));
+ DEB_EE("dev:%p, fh:%p\n", dev, fh);
if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S(("not capturing.\n"));
+ DEB_S("not capturing\n");
return 0;
}
if (vv->video_fh != fh) {
- DEB_S(("capturing, but in another open.\n"));
+ DEB_S("capturing, but in another open\n");
return -EBUSY;
}
struct saa7146_vv *vv = dev->vv_data;
struct saa7146_format *fmt;
- DEB_EE(("VIDIOC_S_FBUF\n"));
+ DEB_EE("VIDIOC_S_FBUF\n");
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
return -EPERM;
/* planar formats are not allowed for overlay video, clipping and video dma would clash */
if (fmt->flags & FORMAT_IS_PLANAR)
- DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n",
- (char *)&fmt->pixelformat));
+ DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n",
+ (char *)&fmt->pixelformat);
/* check if overlay is running */
if (IS_OVERLAY_ACTIVE(fh) != 0) {
if (vv->video_fh != fh) {
- DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n"));
+ DEB_D("refusing to change framebuffer informations while overlay is active in another open\n");
return -EBUSY;
}
}
if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) {
vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8;
- DEB_D(("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline));
+ DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline);
}
return 0;
}
if (ctrl == NULL)
return -EINVAL;
- DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id));
+ DEB_EE("VIDIOC_QUERYCTRL: id:%d\n", c->id);
*c = *ctrl;
return 0;
}
case V4L2_CID_BRIGHTNESS:
value = saa7146_read(dev, BCS_CTRL);
c->value = 0xff & (value >> 24);
- DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value));
+ DEB_D("V4L2_CID_BRIGHTNESS: %d\n", c->value);
break;
case V4L2_CID_CONTRAST:
value = saa7146_read(dev, BCS_CTRL);
c->value = 0x7f & (value >> 16);
- DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value));
+ DEB_D("V4L2_CID_CONTRAST: %d\n", c->value);
break;
case V4L2_CID_SATURATION:
value = saa7146_read(dev, BCS_CTRL);
c->value = 0x7f & (value >> 0);
- DEB_D(("V4L2_CID_SATURATION: %d\n", c->value));
+ DEB_D("V4L2_CID_SATURATION: %d\n", c->value);
break;
case V4L2_CID_VFLIP:
c->value = vv->vflip;
- DEB_D(("V4L2_CID_VFLIP: %d\n", c->value));
+ DEB_D("V4L2_CID_VFLIP: %d\n", c->value);
break;
case V4L2_CID_HFLIP:
c->value = vv->hflip;
- DEB_D(("V4L2_CID_HFLIP: %d\n", c->value));
+ DEB_D("V4L2_CID_HFLIP: %d\n", c->value);
break;
default:
return -EINVAL;
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl) {
- DEB_D(("unknown control %d\n", c->id));
+ DEB_D("unknown control %d\n", c->id);
return -EINVAL;
}
case V4L2_CID_HFLIP:
/* fixme: we can support changing VFLIP and HFLIP here... */
if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
+ DEB_D("V4L2_CID_HFLIP while active capture\n");
return -EBUSY;
}
vv->hflip = c->value;
break;
case V4L2_CID_VFLIP:
if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
+ DEB_D("V4L2_CID_VFLIP while active capture\n");
return -EBUSY;
}
vv->vflip = c->value;
int maxw, maxh;
int calc_bpl;
- DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh);
fmt = saa7146_format_by_fourcc(dev, f->fmt.pix.pixelformat);
if (NULL == fmt)
vv->last_field = V4L2_FIELD_INTERLACED;
break;
default:
- DEB_D(("no known field mode '%d'.\n", field));
+ DEB_D("no known field mode '%d'\n", field);
return -EINVAL;
}
f->fmt.pix.bytesperline = calc_bpl;
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
- DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width,
- f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage));
+ DEB_D("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n",
+ f->fmt.pix.width, f->fmt.pix.height,
+ f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
return 0;
}
enum v4l2_field field;
int maxw, maxh;
- DEB_EE(("dev:%p\n", dev));
+ DEB_EE("dev:%p\n", dev);
if (NULL == vv->ov_fb.base) {
- DEB_D(("no fb base set.\n"));
+ DEB_D("no fb base set\n");
return -EINVAL;
}
if (NULL == vv->ov_fmt) {
- DEB_D(("no fb fmt set.\n"));
+ DEB_D("no fb fmt set\n");
return -EINVAL;
}
if (win->w.width < 48 || win->w.height < 32) {
- DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height));
+ DEB_D("min width/height. (%d,%d)\n",
+ win->w.width, win->w.height);
return -EINVAL;
}
if (win->clipcount > 16) {
- DEB_D(("clipcount too big.\n"));
+ DEB_D("clipcount too big\n");
return -EINVAL;
}
case V4L2_FIELD_INTERLACED:
break;
default:
- DEB_D(("no known field mode '%d'.\n", field));
+ DEB_D("no known field mode '%d'\n", field);
return -EINVAL;
}
struct saa7146_vv *vv = dev->vv_data;
int err;
- DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh);
if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_EE(("streaming capture is active\n"));
+ DEB_EE("streaming capture is active\n");
return -EBUSY;
}
err = vidioc_try_fmt_vid_cap(file, fh, f);
if (0 != err)
return err;
fh->video_fmt = f->fmt.pix;
- DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat));
+ DEB_EE("set to pixelformat '%4.4s'\n",
+ (char *)&fh->video_fmt.pixelformat);
return 0;
}
struct saa7146_vv *vv = dev->vv_data;
int err;
- DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh));
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh);
err = vidioc_try_fmt_vid_overlay(file, fh, f);
if (0 != err)
return err;
if (e->index < 0 )
return -EINVAL;
if( e->index < dev->ext_vv_data->num_stds ) {
- DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index));
+ DEB_EE("VIDIOC_ENUMSTD: index:%d\n", e->index);
v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name);
return 0;
}
int found = 0;
int err, i;
- DEB_EE(("VIDIOC_S_STD\n"));
+ DEB_EE("VIDIOC_S_STD\n");
if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
- DEB_D(("cannot change video standard while streaming capture is active\n"));
+ DEB_D("cannot change video standard while streaming capture is active\n");
return -EBUSY;
}
vv->ov_suspend = vv->video_fh;
err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
if (0 != err) {
- DEB_D(("suspending video failed. aborting\n"));
+ DEB_D("suspending video failed. aborting\n");
return err;
}
}
}
if (!found) {
- DEB_EE(("VIDIOC_S_STD: standard not found.\n"));
+ DEB_EE("VIDIOC_S_STD: standard not found\n");
return -EINVAL;
}
- DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name));
+ DEB_EE("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name);
return 0;
}
{
int err;
- DEB_D(("VIDIOC_OVERLAY on:%d\n", on));
+ DEB_D("VIDIOC_OVERLAY on:%d\n", on);
if (on)
err = saa7146_start_preview(fh);
else
struct saa7146_fh *fh = __fh;
int err;
- DEB_D(("VIDIOC_STREAMON, type:%d\n", type));
+ DEB_D("VIDIOC_STREAMON, type:%d\n", type);
err = video_begin(fh);
if (err)
struct saa7146_vv *vv = dev->vv_data;
int err;
- DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type));
+ DEB_D("VIDIOC_STREAMOFF, type:%d\n", type);
/* ugly: we need to copy some checks from video_end(),
because videobuf_streamoff() relies on the capture running.
check and fix this */
if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S(("not capturing.\n"));
+ DEB_S("not capturing\n");
return 0;
}
if (vv->video_fh != fh) {
- DEB_S(("capturing, but in another open.\n"));
+ DEB_S("capturing, but in another open\n");
return -EBUSY;
}
else if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
err = videobuf_streamoff(&fh->vbi_q);
if (0 != err) {
- DEB_D(("warning: videobuf_streamoff() failed.\n"));
+ DEB_D("warning: videobuf_streamoff() failed\n");
video_end(fh, file);
} else {
err = video_end(fh, file);
struct saa7146_buf *buf = (struct saa7146_buf *)vb;
int size,err = 0;
- DEB_CAP(("vbuf:%p\n",vb));
+ DEB_CAP("vbuf:%p\n", vb);
/* sanity checks */
if (fh->video_fmt.width < 48 ||
fh->video_fmt.height < 32 ||
fh->video_fmt.width > vv->standard->h_max_out ||
fh->video_fmt.height > vv->standard->v_max_out) {
- DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height));
+ DEB_D("w (%d) / h (%d) out of bounds\n",
+ fh->video_fmt.width, fh->video_fmt.height);
return -EINVAL;
}
size = fh->video_fmt.sizeimage;
if (0 != buf->vb.baddr && buf->vb.bsize < size) {
- DEB_D(("size mismatch.\n"));
+ DEB_D("size mismatch\n");
return -EINVAL;
}
- DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n",
- fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field]));
+ DEB_CAP("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n",
+ fh->video_fmt.width, fh->video_fmt.height,
+ size, v4l2_field_names[fh->video_fmt.field]);
if (buf->vb.width != fh->video_fmt.width ||
buf->vb.bytesperline != fh->video_fmt.bytesperline ||
buf->vb.height != fh->video_fmt.height ||
return 0;
oops:
- DEB_D(("error out.\n"));
+ DEB_D("error out\n");
saa7146_dma_free(dev,q,buf);
return err;
*count = (max_memory*1048576) / *size;
}
- DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size));
+ DEB_CAP("%d buffers, %d bytes each\n", *count, *size);
return 0;
}
struct saa7146_vv *vv = dev->vv_data;
struct saa7146_buf *buf = (struct saa7146_buf *)vb;
- DEB_CAP(("vbuf:%p\n",vb));
+ DEB_CAP("vbuf:%p\n", vb);
saa7146_buffer_queue(fh->dev,&vv->video_q,buf);
}
struct saa7146_dev *dev = fh->dev;
struct saa7146_buf *buf = (struct saa7146_buf *)vb;
- DEB_CAP(("vbuf:%p\n",vb));
+ DEB_CAP("vbuf:%p\n", vb);
saa7146_dma_free(dev,q,buf);
struct saa7146_fh *fh = file->private_data;
struct saa7146_vv *vv = dev->vv_data;
struct videobuf_queue *q = &fh->video_q;
- int err;
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- err = video_end(fh, file);
- } else if (IS_OVERLAY_ACTIVE(fh) != 0) {
- err = saa7146_stop_preview(fh);
- }
+ if (IS_CAPTURE_ACTIVE(fh) != 0)
+ video_end(fh, file);
+ else if (IS_OVERLAY_ACTIVE(fh) != 0)
+ saa7146_stop_preview(fh);
videobuf_stop(q);
-
/* hmm, why is this function declared void? */
- /* return err */
}
struct saa7146_dmaqueue *q = &vv->video_q;
spin_lock(&dev->slock);
- DEB_CAP(("called.\n"));
+ DEB_CAP("called\n");
/* only finish the buffer if we have one... */
if( NULL != q->curr ) {
struct saa7146_vv *vv = dev->vv_data;
ssize_t ret = 0;
- DEB_EE(("called.\n"));
+ DEB_EE("called\n");
if ((vv->video_status & STATUS_CAPTURE) != 0) {
/* fixme: should we allow read() captures while streaming capture? */
if (vv->video_fh == fh) {
- DEB_S(("already capturing.\n"));
+ DEB_S("already capturing\n");
return -EBUSY;
}
- DEB_S(("already capturing in another open.\n"));
+ DEB_S("already capturing in another open\n");
return -EBUSY;
}
#include <linux/i2c.h>
+#include <linux/mutex.h>
+ #include <linux/module.h>
#include "dibx000_common.h"
static int dibx000_write_word(struct dibx000_i2c_master *mst, u16 reg, u16 val)
{
+ int ret;
+
+ if (mutex_lock_interruptible(&mst->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+
mst->i2c_write_buffer[0] = (reg >> 8) & 0xff;
mst->i2c_write_buffer[1] = reg & 0xff;
mst->i2c_write_buffer[2] = (val >> 8) & 0xff;
mst->msg[0].buf = mst->i2c_write_buffer;
mst->msg[0].len = 4;
- return i2c_transfer(mst->i2c_adap, mst->msg, 1) != 1 ? -EREMOTEIO : 0;
+ ret = i2c_transfer(mst->i2c_adap, mst->msg, 1) != 1 ? -EREMOTEIO : 0;
+ mutex_unlock(&mst->i2c_buffer_lock);
+
+ return ret;
}
static u16 dibx000_read_word(struct dibx000_i2c_master *mst, u16 reg)
{
+ u16 ret;
+
+ if (mutex_lock_interruptible(&mst->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
mst->i2c_write_buffer[0] = reg >> 8;
mst->i2c_write_buffer[1] = reg & 0xff;
if (i2c_transfer(mst->i2c_adap, mst->msg, 2) != 2)
dprintk("i2c read error on %d", reg);
- return (mst->i2c_read_buffer[0] << 8) | mst->i2c_read_buffer[1];
+ ret = (mst->i2c_read_buffer[0] << 8) | mst->i2c_read_buffer[1];
+ mutex_unlock(&mst->i2c_buffer_lock);
+
+ return ret;
}
static int dibx000_is_i2c_done(struct dibx000_i2c_master *mst)
struct i2c_msg msg[], int num)
{
struct dibx000_i2c_master *mst = i2c_get_adapdata(i2c_adap);
+ int ret;
if (num > 32) {
dprintk("%s: too much I2C message to be transmitted (%i).\
return -ENOMEM;
}
- memset(mst->msg, 0, sizeof(struct i2c_msg) * (2 + num));
-
dibx000_i2c_select_interface(mst, DIBX000_I2C_INTERFACE_GPIO_6_7);
+ if (mutex_lock_interruptible(&mst->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+
+ memset(mst->msg, 0, sizeof(struct i2c_msg) * (2 + num));
+
/* open the gate */
dibx000_i2c_gate_ctrl(mst, &mst->i2c_write_buffer[0], msg[0].addr, 1);
mst->msg[0].addr = mst->i2c_addr;
mst->msg[num + 1].buf = &mst->i2c_write_buffer[4];
mst->msg[num + 1].len = 4;
- return i2c_transfer(mst->i2c_adap, mst->msg, 2 + num) == 2 + num ? num : -EIO;
+ ret = (i2c_transfer(mst->i2c_adap, mst->msg, 2 + num) == 2 + num ?
+ num : -EIO);
+
+ mutex_unlock(&mst->i2c_buffer_lock);
+ return ret;
}
static struct i2c_algorithm dibx000_i2c_gated_gpio67_algo = {
struct i2c_msg msg[], int num)
{
struct dibx000_i2c_master *mst = i2c_get_adapdata(i2c_adap);
+ int ret;
if (num > 32) {
dprintk("%s: too much I2C message to be transmitted (%i).\
return -ENOMEM;
}
- memset(mst->msg, 0, sizeof(struct i2c_msg) * (2 + num));
-
dibx000_i2c_select_interface(mst, DIBX000_I2C_INTERFACE_TUNER);
+ if (mutex_lock_interruptible(&mst->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+ memset(mst->msg, 0, sizeof(struct i2c_msg) * (2 + num));
+
/* open the gate */
dibx000_i2c_gate_ctrl(mst, &mst->i2c_write_buffer[0], msg[0].addr, 1);
mst->msg[0].addr = mst->i2c_addr;
mst->msg[num + 1].buf = &mst->i2c_write_buffer[4];
mst->msg[num + 1].len = 4;
- return i2c_transfer(mst->i2c_adap, mst->msg, 2 + num) == 2 + num ? num : -EIO;
+ ret = (i2c_transfer(mst->i2c_adap, mst->msg, 2 + num) == 2 + num ?
+ num : -EIO);
+ mutex_unlock(&mst->i2c_buffer_lock);
+ return ret;
}
static struct i2c_algorithm dibx000_i2c_gated_tuner_algo = {
int dibx000_init_i2c_master(struct dibx000_i2c_master *mst, u16 device_rev,
struct i2c_adapter *i2c_adap, u8 i2c_addr)
{
- u8 tx[4];
- struct i2c_msg m = {.addr = i2c_addr >> 1,.buf = tx,.len = 4 };
+ int ret;
+
+ mutex_init(&mst->i2c_buffer_lock);
+ if (mutex_lock_interruptible(&mst->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return -EINVAL;
+ }
+ memset(mst->msg, 0, sizeof(struct i2c_msg));
+ mst->msg[0].addr = i2c_addr >> 1;
+ mst->msg[0].flags = 0;
+ mst->msg[0].buf = mst->i2c_write_buffer;
+ mst->msg[0].len = 4;
mst->device_rev = device_rev;
mst->i2c_adap = i2c_adap;
"DiBX000: could not initialize the master i2c_adapter\n");
/* initialize the i2c-master by closing the gate */
- dibx000_i2c_gate_ctrl(mst, tx, 0, 0);
+ dibx000_i2c_gate_ctrl(mst, mst->i2c_write_buffer, 0, 0);
+
+ ret = (i2c_transfer(i2c_adap, mst->msg, 1) == 1);
+ mutex_unlock(&mst->i2c_buffer_lock);
- return i2c_transfer(i2c_adap, &m, 1) == 1;
+ return ret;
}
EXPORT_SYMBOL(dibx000_init_i2c_master);
#include <linux/interrupt.h>
#include <linux/mfd/wl1273-core.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
V4L2_CID_TUNE_ANTENNA_CAPACITOR,
0, 255, 1, 255);
if (ctrl)
- ctrl->is_volatile = 1;
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
if (radio->ctrl_handler.error) {
r = radio->ctrl_handler.error;
*
*/
+ #include <linux/export.h>
+
#include "fmdrv.h"
#include "fmdrv_v4l2.h"
#include "fmdrv_common.h"
ret = copy_from_user(&rds, buf, sizeof(rds));
fmdbg("(%d)type: %d, text %s, af %d\n",
ret, rds.text_type, rds.text, rds.af_freq);
+ if (ret)
+ return -EFAULT;
fmdev = video_drvdata(file);
fm_tx_set_radio_text(fmdev, rds.text, rds.text_type);
fm_tx_set_af(fmdev, rds.af_freq);
- return 0;
+ return sizeof(rds);
}
static u32 fm_v4l2_fops_poll(struct file *file, struct poll_table_struct *pts)
255, 1, 255);
if (ctrl)
- ctrl->is_volatile = 1;
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
return 0;
}
#include <linux/sched.h>
#include <linux/wait.h>
+ #include <linux/module.h>
#include <media/lirc.h>
#include <media/lirc_dev.h>
#include <media/rc-core.h>
return 0;
}
-static ssize_t ir_lirc_transmit_ir(struct file *file, const char *buf,
+static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf,
size_t n, loff_t *ppos)
{
struct lirc_codec *lirc;
}
static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
- unsigned long __user arg)
+ unsigned long arg)
{
struct lirc_codec *lirc;
struct rc_dev *dev;
+ u32 __user *argp = (u32 __user *)(arg);
int ret = 0;
__u32 val = 0, tmp;
return -EFAULT;
if (_IOC_DIR(cmd) & _IOC_WRITE) {
- ret = get_user(val, (__u32 *)arg);
+ ret = get_user(val, argp);
if (ret)
return ret;
}
}
if (_IOC_DIR(cmd) & _IOC_READ)
- ret = put_user(val, (__u32 *)arg);
+ ret = put_user(val, argp);
return ret;
}
*/
#include <media/rc-map.h>
+ #include <linux/module.h>
/* Pinnacle PCTV HD 800i mini remote */
{ 0x0701, KEY_MENU }, /* Pinnacle logo */
{ 0x0739, KEY_POWER },
{ 0x0703, KEY_VOLUMEUP },
+ { 0x0705, KEY_OK },
{ 0x0709, KEY_VOLUMEDOWN },
{ 0x0706, KEY_CHANNELUP },
{ 0x070c, KEY_CHANNELDOWN },
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/device.h>
+ #include <linux/module.h>
#include "rc-core-priv.h"
/* Sizes are in bytes, 256 bytes allows for 32 entries on x64 */
static void rc_dev_release(struct device *device)
{
- struct rc_dev *dev = to_rc_dev(device);
-
- kfree(dev);
- module_put(THIS_MODULE);
}
#define ADD_HOTPLUG_VAR(fmt, val...) \
{
struct rc_dev *dev = to_rc_dev(device);
+ if (!dev || !dev->input_dev)
+ return -ENODEV;
+
if (dev->rc_map.name)
ADD_HOTPLUG_VAR("NAME=%s", dev->rc_map.name);
if (dev->driver_name)
void rc_free_device(struct rc_dev *dev)
{
- if (dev) {
+ if (!dev)
+ return;
+
+ if (dev->input_dev)
input_free_device(dev->input_dev);
- put_device(&dev->dev);
- }
+
+ put_device(&dev->dev);
+
+ kfree(dev);
+ module_put(THIS_MODULE);
}
EXPORT_SYMBOL_GPL(rc_free_device);
if (dev->driver_type == RC_DRIVER_IR_RAW)
ir_raw_event_unregister(dev);
+ /* Freeing the table should also call the stop callback */
+ ir_free_table(&dev->rc_map);
+ IR_dprintk(1, "Freed keycode table\n");
+
input_unregister_device(dev->input_dev);
dev->input_dev = NULL;
- ir_free_table(&dev->rc_map);
- IR_dprintk(1, "Freed keycode table\n");
+ device_del(&dev->dev);
- device_unregister(&dev->dev);
+ rc_free_device(dev);
}
+
EXPORT_SYMBOL_GPL(rc_unregister_device);
/*
*/
#include <linux/delay.h>
+ #include <linux/module.h>
#include <linux/i2c.h>
+#include <linux/module.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <media/adp1653.h>
if (flash->ctrls.error)
return flash->ctrls.error;
- fault->is_volatile = 1;
+ fault->flags |= V4L2_CTRL_FLAG_VOLATILE;
flash->subdev.ctrl_handler = &flash->ctrls;
return 0;
struct adp1653_flash *flash;
int ret;
+ /* we couldn't work without platform data */
+ if (client->dev.platform_data == NULL)
+ return -ENODEV;
+
flash = kzalloc(sizeof(*flash), GFP_KERNEL);
if (flash == NULL)
return -ENOMEM;
flash->subdev.internal_ops = &adp1653_internal_ops;
flash->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- adp1653_init_controls(flash);
+ ret = adp1653_init_controls(flash);
+ if (ret)
+ goto free_and_quit;
ret = media_entity_init(&flash->subdev.entity, 0, NULL, 0);
if (ret < 0)
- kfree(flash);
+ goto free_and_quit;
+
+ flash->subdev.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+ return 0;
+
+free_and_quit:
+ v4l2_ctrl_handler_free(&flash->ctrls);
+ kfree(flash);
return ret;
}
#include <linux/slab.h>
#include <linux/kfifo.h>
+ #include <linux/module.h>
#include <media/cx25840.h>
#include <media/rc-core.h>
u16 divider;
unsigned int i, n;
union cx25840_ir_fifo_rec *p;
- unsigned u, v;
+ unsigned u, v, w;
if (ir_state == NULL)
return -ENODEV;
if ((p->hw_fifo_data & FIFO_RXTX_RTO) == FIFO_RXTX_RTO) {
/* Assume RTO was because of no IR light input */
u = 0;
- v4l2_dbg(2, ir_debug, sd, "rx read: end of rx\n");
+ w = 1;
} else {
u = (p->hw_fifo_data & FIFO_RXTX_LVL) ? 1 : 0;
if (invert)
u = u ? 0 : 1;
+ w = 0;
}
v = (unsigned) pulse_width_count_to_ns(
init_ir_raw_event(&p->ir_core_data);
p->ir_core_data.pulse = u;
p->ir_core_data.duration = v;
+ p->ir_core_data.timeout = w;
- v4l2_dbg(2, ir_debug, sd, "rx read: %10u ns %s\n",
- v, u ? "mark" : "space");
+ v4l2_dbg(2, ir_debug, sd, "rx read: %10u ns %s %s\n",
+ v, u ? "mark" : "space", w ? "(timed out)" : "");
+ if (w)
+ v4l2_dbg(2, ir_debug, sd, "rx read: end of rx\n");
}
return 0;
}
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#define DEBUG_VARIABLE debug
#include <media/saa7146_vv.h>
+ #include <linux/module.h>
static int debug;
module_param(debug, int, 0);
union i2c_smbus_data data;
int i = 0;
- DEB_D(("hexium_init_done called.\n"));
+ DEB_D("hexium_init_done called\n");
/* initialize the helper ics to useful values */
for (i = 0; i < sizeof(hexium_ks0127b); i++) {
data.byte = hexium_ks0127b[i];
if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, i, I2C_SMBUS_BYTE_DATA, &data)) {
- printk("hexium_gemini: hexium_init_done() failed for address 0x%02x\n", i);
+ pr_err("hexium_init_done() failed for address 0x%02x\n",
+ i);
}
}
{
union i2c_smbus_data data;
- DEB_D((".\n"));
+ DEB_D("\n");
data.byte = hexium_input_select[input].byte;
if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, hexium_input_select[input].adr, I2C_SMBUS_BYTE_DATA, &data)) {
union i2c_smbus_data data;
int i = 0;
- DEB_D((".\n"));
+ DEB_D("\n");
while (vdec[i].adr != -1) {
data.byte = vdec[i].byte;
if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, vdec[i].adr, I2C_SMBUS_BYTE_DATA, &data)) {
- printk("hexium_init_done: hexium_set_standard() failed for address 0x%02x\n", i);
+ pr_err("hexium_init_done: hexium_set_standard() failed for address 0x%02x\n",
+ i);
return -1;
}
i++;
static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
{
- DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+ DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
if (i->index >= HEXIUM_INPUTS)
return -EINVAL;
memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
- DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
+ DEB_D("v4l2_ioctl: VIDIOC_ENUMINPUT %d\n", i->index);
return 0;
}
*input = hexium->cur_input;
- DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
+ DEB_D("VIDIOC_G_INPUT: %d\n", *input);
return 0;
}
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct hexium *hexium = (struct hexium *) dev->ext_priv;
- DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
+ DEB_EE("VIDIOC_S_INPUT %d\n", input);
if (input >= HEXIUM_INPUTS)
return -EINVAL;
for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
if (hexium_controls[i].id == qc->id) {
*qc = hexium_controls[i];
- DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
+ DEB_D("VIDIOC_QUERYCTRL %d\n", qc->id);
return 0;
}
}
if (vc->id == V4L2_CID_PRIVATE_BASE) {
vc->value = hexium->cur_bw;
- DEB_D(("VIDIOC_G_CTRL BW:%d.\n", vc->value));
+ DEB_D("VIDIOC_G_CTRL BW:%d\n", vc->value);
return 0;
}
return -EINVAL;
if (vc->id == V4L2_CID_PRIVATE_BASE)
hexium->cur_bw = vc->value;
- DEB_D(("VIDIOC_S_CTRL BW:%d.\n", hexium->cur_bw));
+ DEB_D("VIDIOC_S_CTRL BW:%d\n", hexium->cur_bw);
if (0 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
hexium_set_standard(hexium, hexium_pal);
/* this function only gets called when the probing was successful */
static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
{
- struct hexium *hexium = (struct hexium *) dev->ext_priv;
+ struct hexium *hexium;
int ret;
- DEB_EE((".\n"));
+ DEB_EE("\n");
hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
if (NULL == hexium) {
- printk("hexium_gemini: not enough kernel memory in hexium_attach().\n");
+ pr_err("not enough kernel memory in hexium_attach()\n");
return -ENOMEM;
}
dev->ext_priv = hexium;
};
saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
- DEB_S(("cannot register i2c-device. skipping.\n"));
+ DEB_S("cannot register i2c-device. skipping.\n");
kfree(hexium);
return -EFAULT;
}
vv_data.ops.vidioc_s_input = vidioc_s_input;
ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER);
if (ret < 0) {
- printk("hexium_gemini: cannot register capture v4l2 device. skipping.\n");
+ pr_err("cannot register capture v4l2 device. skipping.\n");
return ret;
}
- printk("hexium_gemini: found 'hexium gemini' frame grabber-%d.\n", hexium_num);
+ pr_info("found 'hexium gemini' frame grabber-%d\n", hexium_num);
hexium_num++;
return 0;
{
struct hexium *hexium = (struct hexium *) dev->ext_priv;
- DEB_EE(("dev:%p\n", dev));
+ DEB_EE("dev:%p\n", dev);
saa7146_unregister_device(&hexium->video_dev, dev);
saa7146_vv_release(dev);
static int __init hexium_init_module(void)
{
if (0 != saa7146_register_extension(&hexium_extension)) {
- DEB_S(("failed to register extension.\n"));
+ DEB_S("failed to register extension\n");
return -ENODEV;
}
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#define DEBUG_VARIABLE debug
#include <media/saa7146_vv.h>
+ #include <linux/module.h>
static int debug;
module_param(debug, int, 0);
union i2c_smbus_data data;
int err = 0;
- DEB_EE((".\n"));
+ DEB_EE("\n");
/* there are no hexium orion cards with revision 0 saa7146s */
if (0 == dev->revision) {
hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
if (NULL == hexium) {
- printk("hexium_orion: hexium_probe: not enough kernel memory.\n");
+ pr_err("hexium_probe: not enough kernel memory\n");
return -ENOMEM;
}
};
saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
- DEB_S(("cannot register i2c-device. skipping.\n"));
+ DEB_S("cannot register i2c-device. skipping.\n");
kfree(hexium);
return -EFAULT;
}
/* detect newer Hexium Orion cards by subsystem ids */
if (0x17c8 == dev->pci->subsystem_vendor && 0x0101 == dev->pci->subsystem_device) {
- printk("hexium_orion: device is a Hexium Orion w/ 1 SVHS + 3 BNC inputs.\n");
+ pr_info("device is a Hexium Orion w/ 1 SVHS + 3 BNC inputs\n");
/* we store the pointer in our private data field */
dev->ext_priv = hexium;
hexium->type = HEXIUM_ORION_1SVHS_3BNC;
}
if (0x17c8 == dev->pci->subsystem_vendor && 0x2101 == dev->pci->subsystem_device) {
- printk("hexium_orion: device is a Hexium Orion w/ 4 BNC inputs.\n");
+ pr_info("device is a Hexium Orion w/ 4 BNC inputs\n");
/* we store the pointer in our private data field */
dev->ext_priv = hexium;
hexium->type = HEXIUM_ORION_4BNC;
/* check if this is an old hexium Orion card by looking at
a saa7110 at address 0x4e */
if (0 == (err = i2c_smbus_xfer(&hexium->i2c_adapter, 0x4e, 0, I2C_SMBUS_READ, 0x00, I2C_SMBUS_BYTE_DATA, &data))) {
- printk("hexium_orion: device is a Hexium HV-PCI6/Orion (old).\n");
+ pr_info("device is a Hexium HV-PCI6/Orion (old)\n");
/* we store the pointer in our private data field */
dev->ext_priv = hexium;
hexium->type = HEXIUM_HV_PCI6_ORION;
union i2c_smbus_data data;
int i = 0;
- DEB_D(("hexium_init_done called.\n"));
+ DEB_D("hexium_init_done called\n");
/* initialize the helper ics to useful values */
for (i = 0; i < sizeof(hexium_saa7110); i++) {
data.byte = hexium_saa7110[i];
if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x4e, 0, I2C_SMBUS_WRITE, i, I2C_SMBUS_BYTE_DATA, &data)) {
- printk("hexium_orion: failed for address 0x%02x\n", i);
+ pr_err("failed for address 0x%02x\n", i);
}
}
union i2c_smbus_data data;
int i = 0;
- DEB_D((".\n"));
+ DEB_D("\n");
for (i = 0; i < 8; i++) {
int adr = hexium_input_select[input].data[i].adr;
if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x4e, 0, I2C_SMBUS_WRITE, adr, I2C_SMBUS_BYTE_DATA, &data)) {
return -1;
}
- printk("%d: 0x%02x => 0x%02x\n",input, adr,data.byte);
+ pr_debug("%d: 0x%02x => 0x%02x\n", input, adr, data.byte);
}
return 0;
static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
{
- DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+ DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
if (i->index >= HEXIUM_INPUTS)
return -EINVAL;
memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
- DEB_D(("v4l2_ioctl: VIDIOC_ENUMINPUT %d.\n", i->index));
+ DEB_D("v4l2_ioctl: VIDIOC_ENUMINPUT %d\n", i->index);
return 0;
}
*input = hexium->cur_input;
- DEB_D(("VIDIOC_G_INPUT: %d\n", *input));
+ DEB_D("VIDIOC_G_INPUT: %d\n", *input);
return 0;
}
{
struct hexium *hexium = (struct hexium *) dev->ext_priv;
- DEB_EE((".\n"));
+ DEB_EE("\n");
saa7146_vv_init(dev, &vv_data);
vv_data.ops.vidioc_enum_input = vidioc_enum_input;
vv_data.ops.vidioc_g_input = vidioc_g_input;
vv_data.ops.vidioc_s_input = vidioc_s_input;
if (0 != saa7146_register_device(&hexium->video_dev, dev, "hexium orion", VFL_TYPE_GRABBER)) {
- printk("hexium_orion: cannot register capture v4l2 device. skipping.\n");
+ pr_err("cannot register capture v4l2 device. skipping.\n");
return -1;
}
- printk("hexium_orion: found 'hexium orion' frame grabber-%d.\n", hexium_num);
+ pr_err("found 'hexium orion' frame grabber-%d\n", hexium_num);
hexium_num++;
/* the rest */
{
struct hexium *hexium = (struct hexium *) dev->ext_priv;
- DEB_EE(("dev:%p\n", dev));
+ DEB_EE("dev:%p\n", dev);
saa7146_unregister_device(&hexium->video_dev, dev);
saa7146_vv_release(dev);
static int __init hexium_init_module(void)
{
if (0 != saa7146_register_extension(&extension)) {
- DEB_S(("failed to register extension.\n"));
+ DEB_S("failed to register extension\n");
return -ENODEV;
}
#include <linux/delay.h>
#include <linux/i2c.h>
+#include <linux/v4l2-mediabus.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/soc_camera.h>
-#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
return 0;
}
+static int imx074_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ cfg->type = V4L2_MBUS_CSI2;
+ cfg->flags = V4L2_MBUS_CSI2_2_LANE |
+ V4L2_MBUS_CSI2_CHANNEL_0 |
+ V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
+
+ return 0;
+}
+
static struct v4l2_subdev_video_ops imx074_subdev_video_ops = {
.s_stream = imx074_s_stream,
.s_mbus_fmt = imx074_s_fmt,
.enum_mbus_fmt = imx074_enum_fmt,
.g_crop = imx074_g_crop,
.cropcap = imx074_cropcap,
+ .g_mbus_config = imx074_g_mbus_config,
};
static struct v4l2_subdev_core_ops imx074_subdev_core_ops = {
.video = &imx074_subdev_video_ops,
};
-/*
- * We have to provide soc-camera operations, but we don't have anything to say
- * there. The MIPI CSI2 driver will provide .query_bus_param and .set_bus_param
- */
-static unsigned long imx074_query_bus_param(struct soc_camera_device *icd)
-{
- return 0;
-}
-
-static int imx074_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- return -EINVAL;
-}
-
-static struct soc_camera_ops imx074_ops = {
- .query_bus_param = imx074_query_bus_param,
- .set_bus_param = imx074_set_bus_param,
-};
-
-static int imx074_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int imx074_video_probe(struct i2c_client *client)
{
int ret;
u16 id;
const struct i2c_device_id *did)
{
struct imx074 *priv;
- struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
- if (!icd) {
- dev_err(&client->dev, "IMX074: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "IMX074: missing platform data!\n");
return -EINVAL;
v4l2_i2c_subdev_init(&priv->subdev, client, &imx074_subdev_ops);
- icd->ops = &imx074_ops;
priv->fmt = &imx074_colour_fmts[0];
- ret = imx074_video_probe(icd, client);
+ ret = imx074_video_probe(client);
if (ret < 0) {
- icd->ops = NULL;
kfree(priv);
return ret;
}
static int imx074_remove(struct i2c_client *client)
{
struct imx074 *priv = to_imx074(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
if (icl->free_bus)
icl->free_bus(icl);
kfree(priv);
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
return -EINVAL;
}
- if (!pdata->irq) {
+ if (!client->irq) {
dev_err(&client->dev, "Interrupt not assigned\n");
return -EINVAL;
}
init_waitqueue_head(&info->irq_waitq);
INIT_WORK(&info->work_irq, m5mols_irq_work);
- ret = request_irq(pdata->irq, m5mols_irq_handler,
+ ret = request_irq(client->irq, m5mols_irq_handler,
IRQF_TRIGGER_RISING, MODULE_NAME, sd);
if (ret) {
dev_err(&client->dev, "Interrupt request failed: %d\n", ret);
struct m5mols_info *info = to_m5mols(sd);
v4l2_device_unregister_subdev(sd);
- free_irq(info->pdata->irq, sd);
+ free_irq(client->irq, sd);
regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
gpio_free(info->pdata->gpio_reset);
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/log2.h>
+ #include <linux/module.h>
+#include <media/soc_camera.h>
+#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
-#include <media/soc_camera.h>
+#include <media/v4l2-ctrls.h>
/*
* mt9m001 i2c address 0x5d
struct mt9m001 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/auto-exposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
struct v4l2_rect rect; /* Sensor window */
const struct mt9m001_datafmt *fmt;
const struct mt9m001_datafmt *fmts;
int num_fmts;
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
- unsigned int gain;
- unsigned int exposure;
+ unsigned int total_h;
unsigned short y_skip_top; /* Lines to skip at the top */
- unsigned char autoexposure;
};
static struct mt9m001 *to_mt9m001(const struct i2c_client *client)
return 0;
}
-static int mt9m001_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned long width_flag = flags & SOCAM_DATAWIDTH_MASK;
-
- /* Only one width bit may be set */
- if (!is_power_of_2(width_flag))
- return -EINVAL;
-
- if (icl->set_bus_param)
- return icl->set_bus_param(icl, width_flag);
-
- /*
- * Without board specific bus width settings we only support the
- * sensors native bus width
- */
- if (width_flag == SOCAM_DATAWIDTH_10)
- return 0;
-
- return -EINVAL;
-}
-
-static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- /* MT9M001 has all capture_format parameters fixed */
- unsigned long flags = SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_DATA_ACTIVE_HIGH | SOCAM_MASTER;
-
- if (icl->query_bus_param)
- flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK;
- else
- flags |= SOCAM_DATAWIDTH_10;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct mt9m001 *mt9m001 = to_mt9m001(client);
struct v4l2_rect rect = a->c;
- struct soc_camera_device *icd = client->dev.platform_data;
int ret;
const u16 hblank = 9, vblank = 25;
- unsigned int total_h;
if (mt9m001->fmts == mt9m001_colour_fmts)
/*
soc_camera_limit_side(&rect.top, &rect.height,
MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT);
- total_h = rect.height + mt9m001->y_skip_top + vblank;
+ mt9m001->total_h = rect.height + mt9m001->y_skip_top + vblank;
/* Blanking and start values - default... */
ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank);
/*
* The caller provides a supported format, as verified per
- * call to icd->try_fmt()
+ * call to .try_mbus_fmt()
*/
if (!ret)
ret = reg_write(client, MT9M001_COLUMN_START, rect.left);
if (!ret)
ret = reg_write(client, MT9M001_WINDOW_HEIGHT,
rect.height + mt9m001->y_skip_top - 1);
- if (!ret && mt9m001->autoexposure) {
- ret = reg_write(client, MT9M001_SHUTTER_WIDTH, total_h);
- if (!ret) {
- const struct v4l2_queryctrl *qctrl =
- soc_camera_find_qctrl(icd->ops,
- V4L2_CID_EXPOSURE);
- mt9m001->exposure = (524 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- 1048 + qctrl->minimum;
- }
- }
+ if (!ret && v4l2_ctrl_g_ctrl(mt9m001->autoexposure) == V4L2_EXPOSURE_AUTO)
+ ret = reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h);
if (!ret)
mt9m001->rect = rect;
}
#endif
-static const struct v4l2_queryctrl mt9m001_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 1,
- .maximum = 255,
- .step = 1,
- .default_value = 255,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9m001_ops = {
- .set_bus_param = mt9m001_set_bus_param,
- .query_bus_param = mt9m001_query_bus_param,
- .controls = mt9m001_controls,
- .num_controls = ARRAY_SIZE(mt9m001_controls),
-};
-
-static int mt9m001_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m001_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m001 *mt9m001 = to_mt9m001(client);
- int data;
+ struct mt9m001 *mt9m001 = container_of(ctrl->handler,
+ struct mt9m001, hdl);
+ s32 min, max;
switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- data = reg_read(client, MT9M001_READ_OPTIONS2);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x8000);
- break;
case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = mt9m001->autoexposure;
- break;
- case V4L2_CID_GAIN:
- ctrl->value = mt9m001->gain;
- break;
- case V4L2_CID_EXPOSURE:
- ctrl->value = mt9m001->exposure;
+ min = mt9m001->exposure->minimum;
+ max = mt9m001->exposure->maximum;
+ mt9m001->exposure->val =
+ (524 + (mt9m001->total_h - 1) * (max - min)) / 1048 + min;
break;
}
return 0;
}
-static int mt9m001_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m001_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct mt9m001 *mt9m001 = container_of(ctrl->handler,
+ struct mt9m001, hdl);
+ struct v4l2_subdev *sd = &mt9m001->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- const struct v4l2_queryctrl *qctrl;
+ struct v4l2_ctrl *exp = mt9m001->exposure;
int data;
- qctrl = soc_camera_find_qctrl(&mt9m001_ops, ctrl->id);
-
- if (!qctrl)
- return -EINVAL;
-
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9M001_READ_OPTIONS2, 0x8000);
else
data = reg_clear(client, MT9M001_READ_OPTIONS2, 0x8000);
if (data < 0)
return -EIO;
- break;
+ return 0;
+
case V4L2_CID_GAIN:
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
/* See Datasheet Table 7, Gain settings. */
- if (ctrl->value <= qctrl->default_value) {
+ if (ctrl->val <= ctrl->default_value) {
/* Pack it into 0..1 step 0.125, register values 0..8 */
- unsigned long range = qctrl->default_value - qctrl->minimum;
- data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range;
+ unsigned long range = ctrl->default_value - ctrl->minimum;
+ data = ((ctrl->val - ctrl->minimum) * 8 + range / 2) / range;
dev_dbg(&client->dev, "Setting gain %d\n", data);
data = reg_write(client, MT9M001_GLOBAL_GAIN, data);
} else {
/* Pack it into 1.125..15 variable step, register values 9..67 */
/* We assume qctrl->maximum - qctrl->default_value - 1 > 0 */
- unsigned long range = qctrl->maximum - qctrl->default_value - 1;
- unsigned long gain = ((ctrl->value - qctrl->default_value - 1) *
+ unsigned long range = ctrl->maximum - ctrl->default_value - 1;
+ unsigned long gain = ((ctrl->val - ctrl->default_value - 1) *
111 + range / 2) / range + 9;
if (gain <= 32)
if (data < 0)
return -EIO;
}
+ return 0;
- /* Success */
- mt9m001->gain = ctrl->value;
- break;
- case V4L2_CID_EXPOSURE:
- /* mt9m001 has maximum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- unsigned long range = qctrl->maximum - qctrl->minimum;
- unsigned long shutter = ((ctrl->value - qctrl->minimum) * 1048 +
+ case V4L2_CID_EXPOSURE_AUTO:
+ if (ctrl->val == V4L2_EXPOSURE_MANUAL) {
+ unsigned long range = exp->maximum - exp->minimum;
+ unsigned long shutter = ((exp->val - exp->minimum) * 1048 +
range / 2) / range + 1;
dev_dbg(&client->dev,
"Setting shutter width from %d to %lu\n",
- reg_read(client, MT9M001_SHUTTER_WIDTH),
- shutter);
+ reg_read(client, MT9M001_SHUTTER_WIDTH), shutter);
if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0)
return -EIO;
- mt9m001->exposure = ctrl->value;
- mt9m001->autoexposure = 0;
- }
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->value) {
+ } else {
const u16 vblank = 25;
- unsigned int total_h = mt9m001->rect.height +
+
+ mt9m001->total_h = mt9m001->rect.height +
mt9m001->y_skip_top + vblank;
- if (reg_write(client, MT9M001_SHUTTER_WIDTH,
- total_h) < 0)
+ if (reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h) < 0)
return -EIO;
- qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
- mt9m001->exposure = (524 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- 1048 + qctrl->minimum;
- mt9m001->autoexposure = 1;
- } else
- mt9m001->autoexposure = 0;
- break;
+ }
+ return 0;
}
- return 0;
+ return -EINVAL;
}
/*
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
*/
-static int mt9m001_video_probe(struct soc_camera_device *icd,
+static int mt9m001_video_probe(struct soc_camera_link *icl,
struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
s32 data;
unsigned long flags;
int ret;
- /* We must have a parent by now. And it cannot be a wrong one. */
- BUG_ON(!icd->parent ||
- to_soc_camera_host(icd->parent)->nr != icd->iface);
-
/* Enable the chip */
data = reg_write(client, MT9M001_CHIP_ENABLE, 1);
dev_dbg(&client->dev, "write: %d\n", data);
dev_err(&client->dev, "Failed to initialise the camera\n");
/* mt9m001_init() has reset the chip, returning registers to defaults */
- mt9m001->gain = 64;
- mt9m001->exposure = 255;
-
- return ret;
+ return v4l2_ctrl_handler_setup(&mt9m001->hdl);
}
-static void mt9m001_video_remove(struct soc_camera_device *icd)
+static void mt9m001_video_remove(struct soc_camera_link *icl)
{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
-
- dev_dbg(icd->pdev, "Video removed: %p, %p\n",
- icd->parent, icd->vdev);
if (icl->free_bus)
icl->free_bus(icl);
}
return 0;
}
+static const struct v4l2_ctrl_ops mt9m001_ctrl_ops = {
+ .g_volatile_ctrl = mt9m001_g_volatile_ctrl,
+ .s_ctrl = mt9m001_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
- .g_ctrl = mt9m001_g_ctrl,
- .s_ctrl = mt9m001_s_ctrl,
.g_chip_ident = mt9m001_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9m001_g_register,
return 0;
}
+static int mt9m001_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ /* MT9M001 has all capture_format parameters fixed */
+ cfg->flags = V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_DATA_ACTIVE_HIGH | V4L2_MBUS_MASTER;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9m001_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ const struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ struct mt9m001 *mt9m001 = to_mt9m001(client);
+ unsigned int bps = soc_mbus_get_fmtdesc(mt9m001->fmt->code)->bits_per_sample;
+
+ if (icl->set_bus_param)
+ return icl->set_bus_param(icl, 1 << (bps - 1));
+
+ /*
+ * Without board specific bus width settings we only support the
+ * sensors native bus width
+ */
+ return bps == 10 ? 0 : -EINVAL;
+}
+
static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = {
.s_stream = mt9m001_s_stream,
.s_mbus_fmt = mt9m001_s_fmt,
.g_crop = mt9m001_g_crop,
.cropcap = mt9m001_cropcap,
.enum_mbus_fmt = mt9m001_enum_fmt,
+ .g_mbus_config = mt9m001_g_mbus_config,
+ .s_mbus_config = mt9m001_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = {
const struct i2c_device_id *did)
{
struct mt9m001 *mt9m001;
- struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
- if (!icd) {
- dev_err(&client->dev, "MT9M001: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "MT9M001 driver needs platform data\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9m001->hdl, 4);
+ v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 64);
+ mt9m001->exposure = v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 255, 1, 255);
+ /*
+ * Simulated autoexposure. If enabled, we calculate shutter width
+ * ourselves in the driver based on vertical blanking and frame width
+ */
+ mt9m001->autoexposure = v4l2_ctrl_new_std_menu(&mt9m001->hdl,
+ &mt9m001_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9m001->subdev.ctrl_handler = &mt9m001->hdl;
+ if (mt9m001->hdl.error) {
+ int err = mt9m001->hdl.error;
- /* Second stage probe - when a capture adapter is there */
- icd->ops = &mt9m001_ops;
+ kfree(mt9m001);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &mt9m001->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
+ /* Second stage probe - when a capture adapter is there */
mt9m001->y_skip_top = 0;
mt9m001->rect.left = MT9M001_COLUMN_SKIP;
mt9m001->rect.top = MT9M001_ROW_SKIP;
mt9m001->rect.width = MT9M001_MAX_WIDTH;
mt9m001->rect.height = MT9M001_MAX_HEIGHT;
- /*
- * Simulated autoexposure. If enabled, we calculate shutter width
- * ourselves in the driver based on vertical blanking and frame width
- */
- mt9m001->autoexposure = 1;
-
- ret = mt9m001_video_probe(icd, client);
+ ret = mt9m001_video_probe(icl, client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9m001->hdl);
kfree(mt9m001);
}
static int mt9m001_remove(struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
- mt9m001_video_remove(icd);
+ v4l2_device_unregister_subdev(&mt9m001->subdev);
+ v4l2_ctrl_handler_free(&mt9m001->hdl);
+ mt9m001_video_remove(icl);
kfree(mt9m001);
return 0;
#include <linux/log2.h>
#include <linux/gpio.h>
#include <linux/delay.h>
+#include <linux/v4l2-mediabus.h>
+ #include <linux/module.h>
+#include <media/soc_camera.h>
#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
#include <media/v4l2-chip-ident.h>
-#include <media/soc_camera.h>
/*
* MT9M111, MT9M112 and MT9M131:
struct mt9m111 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct v4l2_ctrl *gain;
int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code
* from v4l2-chip-ident.h */
enum mt9m111_context context;
struct mutex power_lock; /* lock to protect power_count */
int power_count;
const struct mt9m111_datafmt *fmt;
- unsigned int gain;
- unsigned char autoexposure;
+ int lastpage; /* PageMap cache value */
unsigned char datawidth;
unsigned int powered:1;
- unsigned int hflip:1;
- unsigned int vflip:1;
- unsigned int autowhitebalance:1;
};
static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
{
int ret;
u16 page;
- static int lastpage = -1; /* PageMap cache value */
+ struct mt9m111 *mt9m111 = to_mt9m111(client);
page = (reg >> 8);
- if (page == lastpage)
+ if (page == mt9m111->lastpage)
return 0;
if (page > 2)
return -EINVAL;
ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
if (!ret)
- lastpage = page;
+ mt9m111->lastpage = page;
return ret;
}
return ret;
}
-static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
-static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
-{
- return 0;
-}
-
static int mt9m111_make_rect(struct mt9m111 *mt9m111,
struct v4l2_rect *rect)
{
}
#endif
-static const struct v4l2_queryctrl mt9m111_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Verticaly",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontaly",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, { /* gain = 1/32*val (=>gain=1 if val==32) */
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 63 * 2 * 2,
- .step = 1,
- .default_value = 32,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9m111_ops = {
- .query_bus_param = mt9m111_query_bus_param,
- .set_bus_param = mt9m111_set_bus_param,
- .controls = mt9m111_controls,
- .num_controls = ARRAY_SIZE(mt9m111_controls),
-};
-
static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
if (gain > 63 * 2 * 2)
return -EINVAL;
- mt9m111->gain = gain;
if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
val = (1 << 10) | (1 << 9) | (gain / 4);
else if ((gain >= 64) && (gain < 64 * 2))
static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
- int ret;
if (on)
- ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
- else
- ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
-
- if (!ret)
- mt9m111->autoexposure = on;
-
- return ret;
+ return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
+ return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
}
static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
- int ret;
if (on)
- ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
- else
- ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
-
- if (!ret)
- mt9m111->autowhitebalance = on;
-
- return ret;
-}
-
-static int mt9m111_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
- int data;
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- if (mt9m111->context == HIGHPOWER)
- data = reg_read(READ_MODE_B);
- else
- data = reg_read(READ_MODE_A);
-
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
- break;
- case V4L2_CID_HFLIP:
- if (mt9m111->context == HIGHPOWER)
- data = reg_read(READ_MODE_B);
- else
- data = reg_read(READ_MODE_A);
-
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
- break;
- case V4L2_CID_GAIN:
- data = mt9m111_get_global_gain(mt9m111);
- if (data < 0)
- return data;
- ctrl->value = data;
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = mt9m111->autoexposure;
- break;
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ctrl->value = mt9m111->autowhitebalance;
- break;
- }
- return 0;
+ return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
+ return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
}
-static int mt9m111_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
- const struct v4l2_queryctrl *qctrl;
- int ret;
-
- qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
- if (!qctrl)
- return -EINVAL;
+ struct mt9m111 *mt9m111 = container_of(ctrl->handler,
+ struct mt9m111, hdl);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- mt9m111->vflip = ctrl->value;
- ret = mt9m111_set_flip(mt9m111, ctrl->value,
+ return mt9m111_set_flip(mt9m111, ctrl->val,
MT9M111_RMB_MIRROR_ROWS);
- break;
case V4L2_CID_HFLIP:
- mt9m111->hflip = ctrl->value;
- ret = mt9m111_set_flip(mt9m111, ctrl->value,
+ return mt9m111_set_flip(mt9m111, ctrl->val,
MT9M111_RMB_MIRROR_COLS);
- break;
case V4L2_CID_GAIN:
- ret = mt9m111_set_global_gain(mt9m111, ctrl->value);
- break;
+ return mt9m111_set_global_gain(mt9m111, ctrl->val);
case V4L2_CID_EXPOSURE_AUTO:
- ret = mt9m111_set_autoexposure(mt9m111, ctrl->value);
- break;
+ return mt9m111_set_autoexposure(mt9m111, ctrl->val);
case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = mt9m111_set_autowhitebalance(mt9m111, ctrl->value);
- break;
- default:
- ret = -EINVAL;
+ return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
}
- return ret;
+ return -EINVAL;
}
static int mt9m111_suspend(struct mt9m111 *mt9m111)
{
- mt9m111->gain = mt9m111_get_global_gain(mt9m111);
+ v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
return 0;
}
mt9m111_set_context(mt9m111, mt9m111->context);
mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
mt9m111_setup_rect(mt9m111, &mt9m111->rect);
- mt9m111_set_flip(mt9m111, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
- mt9m111_set_flip(mt9m111, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
- mt9m111_set_global_gain(mt9m111, mt9m111->gain);
- mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
- mt9m111_set_autowhitebalance(mt9m111, mt9m111->autowhitebalance);
+ v4l2_ctrl_handler_setup(&mt9m111->hdl);
}
static int mt9m111_resume(struct mt9m111 *mt9m111)
ret = mt9m111_reset(mt9m111);
if (!ret)
ret = mt9m111_set_context(mt9m111, mt9m111->context);
- if (!ret)
- ret = mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
if (ret)
dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
return ret;
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
*/
-static int mt9m111_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int mt9m111_video_probe(struct i2c_client *client)
{
struct mt9m111 *mt9m111 = to_mt9m111(client);
s32 data;
int ret;
- /* We must have a parent by now. And it cannot be a wrong one. */
- BUG_ON(!icd->parent ||
- to_soc_camera_host(icd->parent)->nr != icd->iface);
-
- mt9m111->autoexposure = 1;
- mt9m111->autowhitebalance = 1;
-
data = reg_read(CHIP_VERSION);
switch (data) {
dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
break;
default:
- ret = -ENODEV;
dev_err(&client->dev,
"No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
data);
- goto ei2c;
+ return -ENODEV;
}
ret = mt9m111_init(mt9m111);
-
-ei2c:
- return ret;
+ if (ret)
+ return ret;
+ return v4l2_ctrl_handler_setup(&mt9m111->hdl);
}
static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
return ret;
}
+static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
+ .s_ctrl = mt9m111_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
- .g_ctrl = mt9m111_g_ctrl,
- .s_ctrl = mt9m111_s_ctrl,
.g_chip_ident = mt9m111_g_chip_ident,
.s_power = mt9m111_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
return 0;
}
+static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
.s_mbus_fmt = mt9m111_s_fmt,
.g_mbus_fmt = mt9m111_g_fmt,
.g_crop = mt9m111_g_crop,
.cropcap = mt9m111_cropcap,
.enum_mbus_fmt = mt9m111_enum_fmt,
+ .g_mbus_config = mt9m111_g_mbus_config,
};
static struct v4l2_subdev_ops mt9m111_subdev_ops = {
const struct i2c_device_id *did)
{
struct mt9m111 *mt9m111;
- struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
- if (!icd) {
- dev_err(&client->dev, "mt9m111: soc-camera data missing!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "mt9m111: driver needs platform data\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
+ mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
+ v4l2_ctrl_new_std_menu(&mt9m111->hdl,
+ &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
+ if (mt9m111->hdl.error) {
+ int err = mt9m111->hdl.error;
- /* Second stage probe - when a capture adapter is there */
- icd->ops = &mt9m111_ops;
+ kfree(mt9m111);
+ return err;
+ }
+ /* Second stage probe - when a capture adapter is there */
mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
mt9m111->rect.width = MT9M111_MAX_WIDTH;
mt9m111->rect.height = MT9M111_MAX_HEIGHT;
mt9m111->fmt = &mt9m111_colour_fmts[0];
+ mt9m111->lastpage = -1;
- ret = mt9m111_video_probe(icd, client);
+ ret = mt9m111_video_probe(client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9m111->hdl);
kfree(mt9m111);
}
static int mt9m111_remove(struct i2c_client *client)
{
struct mt9m111 *mt9m111 = to_mt9m111(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- icd->ops = NULL;
+ v4l2_device_unregister_subdev(&mt9m111->subdev);
+ v4l2_ctrl_handler_free(&mt9m111->hdl);
kfree(mt9m111);
return 0;
#include <linux/log2.h>
#include <linux/pm.h>
#include <linux/slab.h>
+#include <linux/v4l2-mediabus.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/soc_camera.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-subdev.h>
+#include <media/v4l2-ctrls.h>
+
+/*
+ * ATTENTION: this driver still cannot be used outside of the soc-camera
+ * framework because of its PM implementation, using the video_device node.
+ * If hardware becomes available for testing, alternative PM approaches shall
+ * be considered and tested.
+ */
/*
* mt9t031 i2c address 0x5d
#define MT9T031_COLUMN_SKIP 32
#define MT9T031_ROW_SKIP 20
-#define MT9T031_BUS_PARAM (SOCAM_PCLK_SAMPLE_RISING | \
- SOCAM_PCLK_SAMPLE_FALLING | SOCAM_HSYNC_ACTIVE_HIGH | \
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_HIGH | \
- SOCAM_MASTER | SOCAM_DATAWIDTH_10)
-
struct mt9t031 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/auto-exposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
struct v4l2_rect rect; /* Sensor window */
int model; /* V4L2_IDENT_MT9T031* codes from v4l2-chip-ident.h */
u16 xskip;
u16 yskip;
- unsigned int gain;
+ unsigned int total_h;
unsigned short y_skip_top; /* Lines to skip at the top */
- unsigned int exposure;
- unsigned char autoexposure;
};
static struct mt9t031 *to_mt9t031(const struct i2c_client *client)
return 0;
}
-static int mt9t031_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
-
- /* The caller should have queried our parameters, check anyway */
- if (flags & ~MT9T031_BUS_PARAM)
- return -EINVAL;
-
- if (flags & SOCAM_PCLK_SAMPLE_FALLING)
- reg_clear(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000);
- else
- reg_set(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000);
-
- return 0;
-}
-
-static unsigned long mt9t031_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
-
- return soc_camera_apply_sensor_flags(icl, MT9T031_BUS_PARAM);
-}
-
-enum {
- MT9T031_CTRL_VFLIP,
- MT9T031_CTRL_HFLIP,
- MT9T031_CTRL_GAIN,
- MT9T031_CTRL_EXPOSURE,
- MT9T031_CTRL_EXPOSURE_AUTO,
-};
-
-static const struct v4l2_queryctrl mt9t031_controls[] = {
- [MT9T031_CTRL_VFLIP] = {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
- [MT9T031_CTRL_HFLIP] = {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
- [MT9T031_CTRL_GAIN] = {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- },
- [MT9T031_CTRL_EXPOSURE] = {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 1,
- .maximum = 255,
- .step = 1,
- .default_value = 255,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- },
- [MT9T031_CTRL_EXPOSURE_AUTO] = {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9t031_ops = {
- .set_bus_param = mt9t031_set_bus_param,
- .query_bus_param = mt9t031_query_bus_param,
- .controls = mt9t031_controls,
- .num_controls = ARRAY_SIZE(mt9t031_controls),
-};
-
/* target must be _even_ */
static u16 mt9t031_skip(s32 *source, s32 target, s32 max)
{
/*
* The caller provides a supported format, as guaranteed by
- * icd->try_fmt_cap(), soc_camera_s_crop() and soc_camera_cropcap()
+ * .try_mbus_fmt(), soc_camera_s_crop() and soc_camera_cropcap()
*/
if (ret >= 0)
ret = reg_write(client, MT9T031_COLUMN_START, rect->left);
if (ret >= 0)
ret = reg_write(client, MT9T031_WINDOW_HEIGHT,
rect->height + mt9t031->y_skip_top - 1);
- if (ret >= 0 && mt9t031->autoexposure) {
- unsigned int total_h = rect->height + mt9t031->y_skip_top + vblank;
- ret = set_shutter(client, total_h);
- if (ret >= 0) {
- const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
- const struct v4l2_queryctrl *qctrl =
- &mt9t031_controls[MT9T031_CTRL_EXPOSURE];
- mt9t031->exposure = (shutter_max / 2 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- shutter_max + qctrl->minimum;
- }
+ if (ret >= 0 && v4l2_ctrl_g_ctrl(mt9t031->autoexposure) == V4L2_EXPOSURE_AUTO) {
+ mt9t031->total_h = rect->height + mt9t031->y_skip_top + vblank;
+
+ ret = set_shutter(client, mt9t031->total_h);
}
/* Re-enable register update, commit all changes */
}
#endif
-static int mt9t031_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9t031_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9t031 *mt9t031 = to_mt9t031(client);
- int data;
+ struct mt9t031 *mt9t031 = container_of(ctrl->handler,
+ struct mt9t031, hdl);
+ const u32 shutter_max = MT9T031_MAX_HEIGHT + MT9T031_VERTICAL_BLANK;
+ s32 min, max;
switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- data = reg_read(client, MT9T031_READ_MODE_2);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x8000);
- break;
- case V4L2_CID_HFLIP:
- data = reg_read(client, MT9T031_READ_MODE_2);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x4000);
- break;
case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = mt9t031->autoexposure;
- break;
- case V4L2_CID_GAIN:
- ctrl->value = mt9t031->gain;
- break;
- case V4L2_CID_EXPOSURE:
- ctrl->value = mt9t031->exposure;
+ min = mt9t031->exposure->minimum;
+ max = mt9t031->exposure->maximum;
+ mt9t031->exposure->val =
+ (shutter_max / 2 + (mt9t031->total_h - 1) * (max - min))
+ / shutter_max + min;
break;
}
return 0;
}
-static int mt9t031_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9t031_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct mt9t031 *mt9t031 = container_of(ctrl->handler,
+ struct mt9t031, hdl);
+ struct v4l2_subdev *sd = &mt9t031->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9t031 *mt9t031 = to_mt9t031(client);
- const struct v4l2_queryctrl *qctrl;
+ struct v4l2_ctrl *exp = mt9t031->exposure;
int data;
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9T031_READ_MODE_2, 0x8000);
else
data = reg_clear(client, MT9T031_READ_MODE_2, 0x8000);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_HFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9T031_READ_MODE_2, 0x4000);
else
data = reg_clear(client, MT9T031_READ_MODE_2, 0x4000);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_GAIN:
- qctrl = &mt9t031_controls[MT9T031_CTRL_GAIN];
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
/* See Datasheet Table 7, Gain settings. */
- if (ctrl->value <= qctrl->default_value) {
+ if (ctrl->val <= ctrl->default_value) {
/* Pack it into 0..1 step 0.125, register values 0..8 */
- unsigned long range = qctrl->default_value - qctrl->minimum;
- data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range;
+ unsigned long range = ctrl->default_value - ctrl->minimum;
+ data = ((ctrl->val - ctrl->minimum) * 8 + range / 2) / range;
dev_dbg(&client->dev, "Setting gain %d\n", data);
data = reg_write(client, MT9T031_GLOBAL_GAIN, data);
} else {
/* Pack it into 1.125..128 variable step, register values 9..0x7860 */
/* We assume qctrl->maximum - qctrl->default_value - 1 > 0 */
- unsigned long range = qctrl->maximum - qctrl->default_value - 1;
+ unsigned long range = ctrl->maximum - ctrl->default_value - 1;
/* calculated gain: map 65..127 to 9..1024 step 0.125 */
- unsigned long gain = ((ctrl->value - qctrl->default_value - 1) *
+ unsigned long gain = ((ctrl->val - ctrl->default_value - 1) *
1015 + range / 2) / range + 9;
if (gain <= 32) /* calculated gain 9..32 -> 9..32 */
if (data < 0)
return -EIO;
}
+ return 0;
- /* Success */
- mt9t031->gain = ctrl->value;
- break;
- case V4L2_CID_EXPOSURE:
- qctrl = &mt9t031_controls[MT9T031_CTRL_EXPOSURE];
- /* mt9t031 has maximum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- const unsigned long range = qctrl->maximum - qctrl->minimum;
- const u32 shutter = ((ctrl->value - qctrl->minimum) * 1048 +
- range / 2) / range + 1;
+ case V4L2_CID_EXPOSURE_AUTO:
+ if (ctrl->val == V4L2_EXPOSURE_MANUAL) {
+ unsigned int range = exp->maximum - exp->minimum;
+ unsigned int shutter = ((exp->val - exp->minimum) * 1048 +
+ range / 2) / range + 1;
u32 old;
get_shutter(client, &old);
old, shutter);
if (set_shutter(client, shutter) < 0)
return -EIO;
- mt9t031->exposure = ctrl->value;
- mt9t031->autoexposure = 0;
- }
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->value) {
+ } else {
const u16 vblank = MT9T031_VERTICAL_BLANK;
- const u32 shutter_max = MT9T031_MAX_HEIGHT + vblank;
- unsigned int total_h = mt9t031->rect.height +
+ mt9t031->total_h = mt9t031->rect.height +
mt9t031->y_skip_top + vblank;
- if (set_shutter(client, total_h) < 0)
+ if (set_shutter(client, mt9t031->total_h) < 0)
return -EIO;
- qctrl = &mt9t031_controls[MT9T031_CTRL_EXPOSURE];
- mt9t031->exposure = (shutter_max / 2 + (total_h - 1) *
- (qctrl->maximum - qctrl->minimum)) /
- shutter_max + qctrl->minimum;
- mt9t031->autoexposure = 1;
- } else
- mt9t031->autoexposure = 0;
- break;
+ }
+ return 0;
default:
return -EINVAL;
}
static int mt9t031_runtime_resume(struct device *dev)
{
struct video_device *vdev = to_video_device(dev);
- struct soc_camera_device *icd = dev_get_drvdata(vdev->parent);
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ struct v4l2_subdev *sd = soc_camera_vdev_to_subdev(vdev);
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct mt9t031 *mt9t031 = to_mt9t031(client);
.pm = &mt9t031_dev_pm_ops,
};
+static int mt9t031_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct video_device *vdev = soc_camera_i2c_to_vdev(client);
+
+ if (on)
+ vdev->dev.type = &mt9t031_dev_type;
+ else
+ vdev->dev.type = NULL;
+
+ return 0;
+}
+
/*
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
static int mt9t031_video_probe(struct i2c_client *client)
{
struct mt9t031 *mt9t031 = to_mt9t031(client);
- struct video_device *vdev = soc_camera_i2c_to_vdev(client);
s32 data;
int ret;
if (ret < 0)
dev_err(&client->dev, "Failed to initialise the camera\n");
else
- vdev->dev.type = &mt9t031_dev_type;
-
- /* mt9t031_idle() has reset the chip to default. */
- mt9t031->exposure = 255;
- mt9t031->gain = 64;
+ v4l2_ctrl_handler_setup(&mt9t031->hdl);
return ret;
}
return 0;
}
+static const struct v4l2_ctrl_ops mt9t031_ctrl_ops = {
+ .g_volatile_ctrl = mt9t031_g_volatile_ctrl,
+ .s_ctrl = mt9t031_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9t031_subdev_core_ops = {
- .g_ctrl = mt9t031_g_ctrl,
- .s_ctrl = mt9t031_s_ctrl,
.g_chip_ident = mt9t031_g_chip_ident,
+ .s_power = mt9t031_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9t031_g_register,
.s_register = mt9t031_s_register,
return 0;
}
+static int mt9t031_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
+ V4L2_MBUS_PCLK_SAMPLE_FALLING | V4L2_MBUS_HSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9t031_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ if (soc_camera_apply_board_flags(icl, cfg) &
+ V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ return reg_clear(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000);
+ else
+ return reg_set(client, MT9T031_PIXEL_CLOCK_CONTROL, 0x8000);
+}
+
static struct v4l2_subdev_video_ops mt9t031_subdev_video_ops = {
.s_stream = mt9t031_s_stream,
.s_mbus_fmt = mt9t031_s_fmt,
.g_crop = mt9t031_g_crop,
.cropcap = mt9t031_cropcap,
.enum_mbus_fmt = mt9t031_enum_fmt,
+ .g_mbus_config = mt9t031_g_mbus_config,
+ .s_mbus_config = mt9t031_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9t031_subdev_sensor_ops = {
const struct i2c_device_id *did)
{
struct mt9t031 *mt9t031;
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
int ret;
- if (icd) {
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- if (!icl) {
- dev_err(&client->dev, "MT9T031 driver needs platform data\n");
- return -EINVAL;
- }
-
- icd->ops = &mt9t031_ops;
+ if (!icl) {
+ dev_err(&client->dev, "MT9T031 driver needs platform data\n");
+ return -EINVAL;
}
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9t031->subdev, client, &mt9t031_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9t031->hdl, 5);
+ v4l2_ctrl_new_std(&mt9t031->hdl, &mt9t031_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9t031->hdl, &mt9t031_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9t031->hdl, &mt9t031_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 64);
+
+ /*
+ * Simulated autoexposure. If enabled, we calculate shutter width
+ * ourselves in the driver based on vertical blanking and frame width
+ */
+ mt9t031->autoexposure = v4l2_ctrl_new_std_menu(&mt9t031->hdl,
+ &mt9t031_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9t031->exposure = v4l2_ctrl_new_std(&mt9t031->hdl, &mt9t031_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 255, 1, 255);
+
+ mt9t031->subdev.ctrl_handler = &mt9t031->hdl;
+ if (mt9t031->hdl.error) {
+ int err = mt9t031->hdl.error;
+
+ kfree(mt9t031);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &mt9t031->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
mt9t031->y_skip_top = 0;
mt9t031->rect.left = MT9T031_COLUMN_SKIP;
mt9t031->rect.width = MT9T031_MAX_WIDTH;
mt9t031->rect.height = MT9T031_MAX_HEIGHT;
- /*
- * Simulated autoexposure. If enabled, we calculate shutter width
- * ourselves in the driver based on vertical blanking and frame width
- */
- mt9t031->autoexposure = 1;
-
mt9t031->xskip = 1;
mt9t031->yskip = 1;
mt9t031_disable(client);
if (ret) {
- if (icd)
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9t031->hdl);
kfree(mt9t031);
}
static int mt9t031_remove(struct i2c_client *client)
{
struct mt9t031 *mt9t031 = to_mt9t031(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- if (icd)
- icd->ops = NULL;
+ v4l2_device_unregister_subdev(&mt9t031->subdev);
+ v4l2_ctrl_handler_free(&mt9t031->hdl);
kfree(mt9t031);
return 0;
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/log2.h>
+ #include <linux/module.h>
+#include <media/soc_camera.h>
+#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
-#include <media/soc_camera.h>
+#include <media/v4l2-ctrls.h>
/*
* mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
struct mt9v022 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/auto-exposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
+ struct {
+ /* gain/auto-gain cluster */
+ struct v4l2_ctrl *autogain;
+ struct v4l2_ctrl *gain;
+ };
struct v4l2_rect rect; /* Sensor window */
const struct mt9v022_datafmt *fmt;
const struct mt9v022_datafmt *fmts;
ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1);
if (!ret)
ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0);
+ if (!ret)
+ return v4l2_ctrl_handler_setup(&mt9v022->hdl);
return ret;
}
return 0;
}
-static int mt9v022_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK;
- int ret;
- u16 pixclk = 0;
-
- /* Only one width bit may be set */
- if (!is_power_of_2(width_flag))
- return -EINVAL;
-
- if (icl->set_bus_param) {
- ret = icl->set_bus_param(icl, width_flag);
- if (ret)
- return ret;
- } else {
- /*
- * Without board specific bus width settings we only support the
- * sensors native bus width
- */
- if (width_flag != SOCAM_DATAWIDTH_10)
- return -EINVAL;
- }
-
- flags = soc_camera_apply_sensor_flags(icl, flags);
-
- if (flags & SOCAM_PCLK_SAMPLE_FALLING)
- pixclk |= 0x10;
-
- if (!(flags & SOCAM_HSYNC_ACTIVE_HIGH))
- pixclk |= 0x1;
-
- if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH))
- pixclk |= 0x2;
-
- ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
- if (ret < 0)
- return ret;
-
- if (!(flags & SOCAM_MASTER))
- mt9v022->chip_control &= ~0x8;
-
- ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
- if (ret < 0)
- return ret;
-
- dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
- pixclk, mt9v022->chip_control);
-
- return 0;
-}
-
-static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- unsigned int flags = SOCAM_MASTER | SOCAM_SLAVE |
- SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW |
- SOCAM_DATA_ACTIVE_HIGH;
-
- if (icl->query_bus_param)
- flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK;
- else
- flags |= SOCAM_DATAWIDTH_10;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
/*
* The caller provides a supported format, as verified per call to
- * icd->try_fmt(), datawidth is from our supported format list
+ * .try_mbus_fmt(), datawidth is from our supported format list
*/
switch (mf->code) {
case V4L2_MBUS_FMT_Y8_1X8:
}
#endif
-static const struct v4l2_queryctrl mt9v022_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Analog Gain",
- .minimum = 64,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 1,
- .maximum = 255,
- .step = 1,
- .default_value = 255,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Gain",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9v022_ops = {
- .set_bus_param = mt9v022_set_bus_param,
- .query_bus_param = mt9v022_query_bus_param,
- .controls = mt9v022_controls,
- .num_controls = ARRAY_SIZE(mt9v022_controls),
-};
-
-static int mt9v022_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct mt9v022 *mt9v022 = container_of(ctrl->handler,
+ struct mt9v022, hdl);
+ struct v4l2_subdev *sd = &mt9v022->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- const struct v4l2_queryctrl *qctrl;
+ struct v4l2_ctrl *gain = mt9v022->gain;
+ struct v4l2_ctrl *exp = mt9v022->exposure;
unsigned long range;
int data;
- qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id);
-
switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- data = reg_read(client, MT9V022_READ_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x10);
- break;
- case V4L2_CID_HFLIP:
- data = reg_read(client, MT9V022_READ_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x20);
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- data = reg_read(client, MT9V022_AEC_AGC_ENABLE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x1);
- break;
case V4L2_CID_AUTOGAIN:
- data = reg_read(client, MT9V022_AEC_AGC_ENABLE);
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & 0x2);
- break;
- case V4L2_CID_GAIN:
data = reg_read(client, MT9V022_ANALOG_GAIN);
if (data < 0)
return -EIO;
- range = qctrl->maximum - qctrl->minimum;
- ctrl->value = ((data - 16) * range + 24) / 48 + qctrl->minimum;
-
- break;
- case V4L2_CID_EXPOSURE:
+ range = gain->maximum - gain->minimum;
+ gain->val = ((data - 16) * range + 24) / 48 + gain->minimum;
+ return 0;
+ case V4L2_CID_EXPOSURE_AUTO:
data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH);
if (data < 0)
return -EIO;
- range = qctrl->maximum - qctrl->minimum;
- ctrl->value = ((data - 1) * range + 239) / 479 + qctrl->minimum;
-
- break;
+ range = exp->maximum - exp->minimum;
+ exp->val = ((data - 1) * range + 239) / 479 + exp->minimum;
+ return 0;
}
- return 0;
+ return -EINVAL;
}
-static int mt9v022_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl)
{
- int data;
+ struct mt9v022 *mt9v022 = container_of(ctrl->handler,
+ struct mt9v022, hdl);
+ struct v4l2_subdev *sd = &mt9v022->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- const struct v4l2_queryctrl *qctrl;
-
- qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id);
- if (!qctrl)
- return -EINVAL;
+ int data;
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9V022_READ_MODE, 0x10);
else
data = reg_clear(client, MT9V022_READ_MODE, 0x10);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_HFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, MT9V022_READ_MODE, 0x20);
else
data = reg_clear(client, MT9V022_READ_MODE, 0x20);
if (data < 0)
return -EIO;
- break;
- case V4L2_CID_GAIN:
- /* mt9v022 has minimum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- unsigned long range = qctrl->maximum - qctrl->minimum;
+ return 0;
+ case V4L2_CID_AUTOGAIN:
+ if (ctrl->val) {
+ if (reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
+ return -EIO;
+ } else {
+ struct v4l2_ctrl *gain = mt9v022->gain;
+ /* mt9v022 has minimum == default */
+ unsigned long range = gain->maximum - gain->minimum;
/* Valid values 16 to 64, 32 to 64 must be even. */
- unsigned long gain = ((ctrl->value - qctrl->minimum) *
+ unsigned long gain_val = ((gain->val - gain->minimum) *
48 + range / 2) / range + 16;
- if (gain >= 32)
- gain &= ~1;
+
+ if (gain_val >= 32)
+ gain_val &= ~1;
+
/*
* The user wants to set gain manually, hope, she
* knows, what she's doing... Switch AGC off.
*/
-
if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
return -EIO;
dev_dbg(&client->dev, "Setting gain from %d to %lu\n",
- reg_read(client, MT9V022_ANALOG_GAIN), gain);
- if (reg_write(client, MT9V022_ANALOG_GAIN, gain) < 0)
+ reg_read(client, MT9V022_ANALOG_GAIN), gain_val);
+ if (reg_write(client, MT9V022_ANALOG_GAIN, gain_val) < 0)
return -EIO;
}
- break;
- case V4L2_CID_EXPOSURE:
- /* mt9v022 has maximum == default */
- if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum)
- return -EINVAL;
- else {
- unsigned long range = qctrl->maximum - qctrl->minimum;
- unsigned long shutter = ((ctrl->value - qctrl->minimum) *
- 479 + range / 2) / range + 1;
+ return 0;
+ case V4L2_CID_EXPOSURE_AUTO:
+ if (ctrl->val == V4L2_EXPOSURE_AUTO) {
+ data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1);
+ } else {
+ struct v4l2_ctrl *exp = mt9v022->exposure;
+ unsigned long range = exp->maximum - exp->minimum;
+ unsigned long shutter = ((exp->val - exp->minimum) *
+ 479 + range / 2) / range + 1;
+
/*
* The user wants to set shutter width manually, hope,
* she knows, what she's doing... Switch AEC off.
*/
-
- if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1) < 0)
+ data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1);
+ if (data < 0)
return -EIO;
-
dev_dbg(&client->dev, "Shutter width from %d to %lu\n",
- reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH),
- shutter);
+ reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH),
+ shutter);
if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
- shutter) < 0)
+ shutter) < 0)
return -EIO;
}
- break;
- case V4L2_CID_AUTOGAIN:
- if (ctrl->value)
- data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2);
- else
- data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2);
- if (data < 0)
- return -EIO;
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->value)
- data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- else
- data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- if (data < 0)
- return -EIO;
- break;
+ return 0;
}
- return 0;
+ return -EINVAL;
}
/*
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
*/
-static int mt9v022_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int mt9v022_video_probe(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
s32 data;
int ret;
unsigned long flags;
- /* We must have a parent by now. And it cannot be a wrong one. */
- BUG_ON(!icd->parent ||
- to_soc_camera_host(icd->parent)->nr != icd->iface);
-
/* Read out the chip version register */
data = reg_read(client, MT9V022_CHIP_VERSION);
return ret;
}
-static void mt9v022_video_remove(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
-
- dev_dbg(icd->pdev, "Video removed: %p, %p\n",
- icd->parent, icd->vdev);
- if (icl->free_bus)
- icl->free_bus(icl);
-}
-
static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return 0;
}
+static const struct v4l2_ctrl_ops mt9v022_ctrl_ops = {
+ .g_volatile_ctrl = mt9v022_g_volatile_ctrl,
+ .s_ctrl = mt9v022_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
- .g_ctrl = mt9v022_g_ctrl,
- .s_ctrl = mt9v022_s_ctrl,
.g_chip_ident = mt9v022_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9v022_g_register,
return 0;
}
+static int mt9v022_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE |
+ V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
+ V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ struct mt9v022 *mt9v022 = to_mt9v022(client);
+ unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
+ unsigned int bps = soc_mbus_get_fmtdesc(mt9v022->fmt->code)->bits_per_sample;
+ int ret;
+ u16 pixclk = 0;
+
+ if (icl->set_bus_param) {
+ ret = icl->set_bus_param(icl, 1 << (bps - 1));
+ if (ret)
+ return ret;
+ } else if (bps != 10) {
+ /*
+ * Without board specific bus width settings we only support the
+ * sensors native bus width
+ */
+ return -EINVAL;
+ }
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ pixclk |= 0x10;
+
+ if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH))
+ pixclk |= 0x1;
+
+ if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH))
+ pixclk |= 0x2;
+
+ ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
+ if (ret < 0)
+ return ret;
+
+ if (!(flags & V4L2_MBUS_MASTER))
+ mt9v022->chip_control &= ~0x8;
+
+ ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
+ pixclk, mt9v022->chip_control);
+
+ return 0;
+}
+
static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.s_stream = mt9v022_s_stream,
.s_mbus_fmt = mt9v022_s_fmt,
.g_crop = mt9v022_g_crop,
.cropcap = mt9v022_cropcap,
.enum_mbus_fmt = mt9v022_enum_fmt,
+ .g_mbus_config = mt9v022_g_mbus_config,
+ .s_mbus_config = mt9v022_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
const struct i2c_device_id *did)
{
struct mt9v022 *mt9v022;
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
int ret;
- if (!icd) {
- dev_err(&client->dev, "MT9V022: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "MT9V022 driver needs platform data\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9v022->hdl, 6);
+ v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ mt9v022->autogain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ mt9v022->gain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 64);
+
+ /*
+ * Simulated autoexposure. If enabled, we calculate shutter width
+ * ourselves in the driver based on vertical blanking and frame width
+ */
+ mt9v022->autoexposure = v4l2_ctrl_new_std_menu(&mt9v022->hdl,
+ &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 255, 1, 255);
+
+ mt9v022->subdev.ctrl_handler = &mt9v022->hdl;
+ if (mt9v022->hdl.error) {
+ int err = mt9v022->hdl.error;
+
+ kfree(mt9v022);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &mt9v022->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
+ v4l2_ctrl_auto_cluster(2, &mt9v022->autogain, 0, true);
mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
- icd->ops = &mt9v022_ops;
/*
* MT9V022 _really_ corrupts the first read out line.
* TODO: verify on i.MX31
mt9v022->rect.width = MT9V022_MAX_WIDTH;
mt9v022->rect.height = MT9V022_MAX_HEIGHT;
- ret = mt9v022_video_probe(icd, client);
+ ret = mt9v022_video_probe(client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9v022->hdl);
kfree(mt9v022);
}
static int mt9v022_remove(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
- mt9v022_video_remove(icd);
+ v4l2_device_unregister_subdev(&mt9v022->subdev);
+ if (icl->free_bus)
+ icl->free_bus(icl);
+ v4l2_ctrl_handler_free(&mt9v022->hdl);
kfree(mt9v022);
return 0;
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#define DEBUG_VARIABLE debug
#include <media/saa7146_vv.h>
#include <media/tuner.h>
#include <media/v4l2-common.h>
#include <media/saa7115.h>
+ #include <linux/module.h>
#include "mxb.h"
#include "tea6415c.h"
mxb = kzalloc(sizeof(struct mxb), GFP_KERNEL);
if (mxb == NULL) {
- DEB_D(("not enough kernel memory.\n"));
+ DEB_D("not enough kernel memory\n");
return -ENOMEM;
}
saa7146_i2c_adapter_prepare(dev, &mxb->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
if (i2c_add_adapter(&mxb->i2c_adapter) < 0) {
- DEB_S(("cannot register i2c-device. skipping.\n"));
+ DEB_S("cannot register i2c-device. skipping.\n");
kfree(mxb);
return -EFAULT;
}
/* check if all devices are present */
if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
!mxb->tda9840 || !mxb->saa7111a || !mxb->tuner) {
- printk("mxb: did not find all i2c devices. aborting\n");
+ pr_err("did not find all i2c devices. aborting\n");
i2c_del_adapter(&mxb->i2c_adapter);
kfree(mxb);
return -ENODEV;
msg.buf = &mxb_saa7740_init[i].data[0];
err = i2c_transfer(&mxb->i2c_adapter, &msg, 1);
if (err != 1) {
- DEB_D(("failed to initialize 'sound arena module'.\n"));
+ DEB_D("failed to initialize 'sound arena module'\n");
goto err;
}
}
- INFO(("'sound arena module' detected.\n"));
+ pr_info("'sound arena module' detected\n");
}
err:
/* the rest for saa7146: you should definitely set some basic values
for (i = MAXCONTROLS - 1; i >= 0; i--) {
if (mxb_controls[i].id == qc->id) {
*qc = mxb_controls[i];
- DEB_D(("VIDIOC_QUERYCTRL %d.\n", qc->id));
+ DEB_D("VIDIOC_QUERYCTRL %d\n", qc->id);
return 0;
}
}
if (vc->id == V4L2_CID_AUDIO_MUTE) {
vc->value = mxb->cur_mute;
- DEB_D(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
+ DEB_D("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d\n", vc->value);
return 0;
}
- DEB_EE(("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d.\n", vc->value));
+ DEB_EE("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d\n", vc->value);
return 0;
}
/* switch the audio-source */
tea6420_route_line(mxb, vc->value ? 6 :
video_audio_connect[mxb->cur_input]);
- DEB_EE(("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d.\n", vc->value));
+ DEB_EE("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d\n", vc->value);
}
return 0;
}
static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
{
- DEB_EE(("VIDIOC_ENUMINPUT %d.\n", i->index));
+ DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
if (i->index >= MXB_INPUTS)
return -EINVAL;
memcpy(i, &mxb_inputs[i->index], sizeof(struct v4l2_input));
struct mxb *mxb = (struct mxb *)dev->ext_priv;
*i = mxb->cur_input;
- DEB_EE(("VIDIOC_G_INPUT %d.\n", *i));
+ DEB_EE("VIDIOC_G_INPUT %d\n", *i);
return 0;
}
int err = 0;
int i = 0;
- DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
+ DEB_EE("VIDIOC_S_INPUT %d\n", input);
if (input >= MXB_INPUTS)
return -EINVAL;
/* switch video in saa7111a */
if (saa7111a_call(mxb, video, s_routing, i, SAA7111_FMT_CCIR, 0))
- printk(KERN_ERR "VIDIOC_S_INPUT: could not address saa7111a.\n");
+ pr_err("VIDIOC_S_INPUT: could not address saa7111a\n");
/* switch the audio-source only if necessary */
if (0 == mxb->cur_mute)
struct mxb *mxb = (struct mxb *)dev->ext_priv;
if (t->index) {
- DEB_D(("VIDIOC_G_TUNER: channel %d does not have a tuner attached.\n", t->index));
+ DEB_D("VIDIOC_G_TUNER: channel %d does not have a tuner attached\n",
+ t->index);
return -EINVAL;
}
- DEB_EE(("VIDIOC_G_TUNER: %d\n", t->index));
+ DEB_EE("VIDIOC_G_TUNER: %d\n", t->index);
memset(t, 0, sizeof(*t));
strlcpy(t->name, "TV Tuner", sizeof(t->name));
struct mxb *mxb = (struct mxb *)dev->ext_priv;
if (t->index) {
- DEB_D(("VIDIOC_S_TUNER: channel %d does not have a tuner attached.\n", t->index));
+ DEB_D("VIDIOC_S_TUNER: channel %d does not have a tuner attached\n",
+ t->index);
return -EINVAL;
}
struct mxb *mxb = (struct mxb *)dev->ext_priv;
if (mxb->cur_input) {
- DEB_D(("VIDIOC_G_FREQ: channel %d does not have a tuner!\n",
- mxb->cur_input));
+ DEB_D("VIDIOC_G_FREQ: channel %d does not have a tuner!\n",
+ mxb->cur_input);
return -EINVAL;
}
*f = mxb->cur_freq;
- DEB_EE(("VIDIOC_G_FREQ: freq:0x%08x.\n", mxb->cur_freq.frequency));
+ DEB_EE("VIDIOC_G_FREQ: freq:0x%08x\n", mxb->cur_freq.frequency);
return 0;
}
return -EINVAL;
if (mxb->cur_input) {
- DEB_D(("VIDIOC_S_FREQ: channel %d does not have a tuner!\n", mxb->cur_input));
+ DEB_D("VIDIOC_S_FREQ: channel %d does not have a tuner!\n",
+ mxb->cur_input);
return -EINVAL;
}
mxb->cur_freq = *f;
- DEB_EE(("VIDIOC_S_FREQUENCY: freq:0x%08x.\n", mxb->cur_freq.frequency));
+ DEB_EE("VIDIOC_S_FREQUENCY: freq:0x%08x\n", mxb->cur_freq.frequency);
/* tune in desired frequency */
tuner_call(mxb, tuner, s_frequency, &mxb->cur_freq);
struct mxb *mxb = (struct mxb *)dev->ext_priv;
if (a->index > MXB_INPUTS) {
- DEB_D(("VIDIOC_G_AUDIO %d out of range.\n", a->index));
+ DEB_D("VIDIOC_G_AUDIO %d out of range\n", a->index);
return -EINVAL;
}
- DEB_EE(("VIDIOC_G_AUDIO %d.\n", a->index));
+ DEB_EE("VIDIOC_G_AUDIO %d\n", a->index);
memcpy(a, &mxb_audios[video_audio_connect[mxb->cur_input]], sizeof(struct v4l2_audio));
return 0;
}
static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
{
- DEB_D(("VIDIOC_S_AUDIO %d.\n", a->index));
+ DEB_D("VIDIOC_S_AUDIO %d\n", a->index);
return 0;
}
int i = *(int *)arg;
if (i < 0 || i >= MXB_AUDIOS) {
- DEB_D(("illegal argument to MXB_S_AUDIO_CD: i:%d.\n", i));
+ DEB_D("invalid argument to MXB_S_AUDIO_CD: i:%d\n", i);
return -EINVAL;
}
- DEB_EE(("MXB_S_AUDIO_CD: i:%d.\n", i));
+ DEB_EE("MXB_S_AUDIO_CD: i:%d\n", i);
tea6420_route_cd(mxb, i);
return 0;
int i = *(int *)arg;
if (i < 0 || i >= MXB_AUDIOS) {
- DEB_D(("illegal argument to MXB_S_AUDIO_LINE: i:%d.\n", i));
+ DEB_D("invalid argument to MXB_S_AUDIO_LINE: i:%d\n",
+ i);
return -EINVAL;
}
- DEB_EE(("MXB_S_AUDIO_LINE: i:%d.\n", i));
+ DEB_EE("MXB_S_AUDIO_LINE: i:%d\n", i);
tea6420_route_line(mxb, i);
return 0;
}
default:
/*
- DEB2(printk("does not handle this ioctl.\n"));
+ DEB2(pr_err("does not handle this ioctl\n"));
*/
return -ENOIOCTLCMD;
}
{
struct mxb *mxb;
- DEB_EE(("dev:%p\n", dev));
+ DEB_EE("dev:%p\n", dev);
saa7146_vv_init(dev, &vv_data);
if (mxb_probe(dev)) {
#endif
vv_data.ops.vidioc_default = vidioc_default;
if (saa7146_register_device(&mxb->video_dev, dev, "mxb", VFL_TYPE_GRABBER)) {
- ERR(("cannot register capture v4l2 device. skipping.\n"));
+ ERR("cannot register capture v4l2 device. skipping.\n");
saa7146_vv_release(dev);
return -1;
}
/* initialization stuff (vbi) (only for revision > 0 and for extensions which want it)*/
if (MXB_BOARD_CAN_DO_VBI(dev)) {
if (saa7146_register_device(&mxb->vbi_dev, dev, "mxb", VFL_TYPE_VBI)) {
- ERR(("cannot register vbi v4l2 device. skipping.\n"));
+ ERR("cannot register vbi v4l2 device. skipping.\n");
}
}
- printk("mxb: found Multimedia eXtension Board #%d.\n", mxb_num);
+ pr_info("found Multimedia eXtension Board #%d\n", mxb_num);
mxb_num++;
mxb_init_done(dev);
{
struct mxb *mxb = (struct mxb *)dev->ext_priv;
- DEB_EE(("dev:%p\n", dev));
+ DEB_EE("dev:%p\n", dev);
saa7146_unregister_device(&mxb->video_dev,dev);
if (MXB_BOARD_CAN_DO_VBI(dev))
if (V4L2_STD_PAL_I == standard->id) {
v4l2_std_id std = V4L2_STD_PAL_I;
- DEB_D(("VIDIOC_S_STD: setting mxb for PAL_I.\n"));
+ DEB_D("VIDIOC_S_STD: setting mxb for PAL_I\n");
/* set the 7146 gpio register -- I don't know what this does exactly */
saa7146_write(dev, GPIO_CTRL, 0x00404050);
/* unset the 7111 gpio register -- I don't know what this does exactly */
} else {
v4l2_std_id std = V4L2_STD_PAL_BG;
- DEB_D(("VIDIOC_S_STD: setting mxb for PAL/NTSC/SECAM.\n"));
+ DEB_D("VIDIOC_S_STD: setting mxb for PAL/NTSC/SECAM\n");
/* set the 7146 gpio register -- I don't know what this does exactly */
saa7146_write(dev, GPIO_CTRL, 0x00404050);
/* set the 7111 gpio register -- I don't know what this does exactly */
static int __init mxb_init_module(void)
{
if (saa7146_register_extension(&extension)) {
- DEB_S(("failed to register extension.\n"));
+ DEB_S("failed to register extension\n");
return -ENODEV;
}
/*
* Driver for SiliconFile NOON010PC30 CIF (1/11") Image Sensor with ISP
*
- * Copyright (C) 2010 Samsung Electronics
+ * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd.
* Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
*
* Initial register configuration based on a driver authored by
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later vergsion.
+ * (at your option) any later version.
*/
#include <linux/delay.h>
#include <media/noon010pc30.h>
#include <media/v4l2-chip-ident.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>
struct noon010_info {
struct v4l2_subdev sd;
+ struct media_pad pad;
struct v4l2_ctrl_handler hdl;
- const struct noon010pc30_platform_data *pdata;
+ struct regulator_bulk_data supply[NOON010_NUM_SUPPLIES];
+ u32 gpio_nreset;
+ u32 gpio_nstby;
+
+ /* Protects the struct members below */
+ struct mutex lock;
+
const struct noon010_format *curr_fmt;
const struct noon010_frmsize *curr_win;
+ unsigned int apply_new_cfg:1;
+ unsigned int streaming:1;
unsigned int hflip:1;
unsigned int vflip:1;
unsigned int power:1;
u8 i2c_reg_page;
- struct regulator_bulk_data supply[NOON010_NUM_SUPPLIES];
- u32 gpio_nreset;
- u32 gpio_nstby;
};
struct i2c_regval {
u8 reg = sleep ? 0xF1 : 0xF0;
int ret = 0;
- if (reset)
+ if (reset) {
ret = cam_i2c_write(sd, POWER_CTRL_REG, reg | 0x02);
+ udelay(20);
+ }
if (!ret) {
ret = cam_i2c_write(sd, POWER_CTRL_REG, reg);
if (reset && !ret)
return ret;
}
+/* Called with struct noon010_info.lock mutex held */
static int noon010_set_flip(struct v4l2_subdev *sd, int hflip, int vflip)
{
struct noon010_info *info = to_noon010(sd);
static int noon010_set_params(struct v4l2_subdev *sd)
{
struct noon010_info *info = to_noon010(sd);
- int ret;
- if (!info->curr_win)
- return -EINVAL;
-
- ret = cam_i2c_write(sd, VDO_CTL_REG(0), info->curr_win->vid_ctl1);
-
- if (!ret && info->curr_fmt)
- ret = cam_i2c_write(sd, ISP_CTL_REG(0),
- info->curr_fmt->ispctl1_reg);
- return ret;
+ int ret = cam_i2c_write(sd, VDO_CTL_REG(0),
+ info->curr_win->vid_ctl1);
+ if (ret)
+ return ret;
+ return cam_i2c_write(sd, ISP_CTL_REG(0),
+ info->curr_fmt->ispctl1_reg);
}
/* Find nearest matching image pixel size. */
-static int noon010_try_frame_size(struct v4l2_mbus_framefmt *mf)
+static int noon010_try_frame_size(struct v4l2_mbus_framefmt *mf,
+ const struct noon010_frmsize **size)
{
unsigned int min_err = ~0;
int i = ARRAY_SIZE(noon010_sizes);
if (match) {
mf->width = match->width;
mf->height = match->height;
+ if (size)
+ *size = match;
return 0;
}
return -EINVAL;
}
+/* Called with info.lock mutex held */
static int power_enable(struct noon010_info *info)
{
int ret;
return 0;
}
+/* Called with info.lock mutex held */
static int power_disable(struct noon010_info *info)
{
int ret;
static int noon010_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
+ struct noon010_info *info = to_noon010(sd);
+ int ret = 0;
v4l2_dbg(1, debug, sd, "%s: ctrl_id: %d, value: %d\n",
__func__, ctrl->id, ctrl->val);
+ mutex_lock(&info->lock);
+ /*
+ * If the device is not powered up by the host driver do
+ * not apply any controls to H/W at this time. Instead
+ * the controls will be restored right after power-up.
+ */
+ if (!info->power)
+ goto unlock;
+
switch (ctrl->id) {
case V4L2_CID_AUTO_WHITE_BALANCE:
- return noon010_enable_autowhitebalance(sd, ctrl->val);
+ ret = noon010_enable_autowhitebalance(sd, ctrl->val);
+ break;
case V4L2_CID_BLUE_BALANCE:
- return cam_i2c_write(sd, MWB_BGAIN_REG, ctrl->val);
+ ret = cam_i2c_write(sd, MWB_BGAIN_REG, ctrl->val);
+ break;
case V4L2_CID_RED_BALANCE:
- return cam_i2c_write(sd, MWB_RGAIN_REG, ctrl->val);
+ ret = cam_i2c_write(sd, MWB_RGAIN_REG, ctrl->val);
+ break;
default:
- return -EINVAL;
+ ret = -EINVAL;
}
+unlock:
+ mutex_unlock(&info->lock);
+ return ret;
}
-static int noon010_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
- enum v4l2_mbus_pixelcode *code)
+static int noon010_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_mbus_code_enum *code)
{
- if (!code || index >= ARRAY_SIZE(noon010_formats))
+ if (code->index >= ARRAY_SIZE(noon010_formats))
return -EINVAL;
- *code = noon010_formats[index].code;
+ code->code = noon010_formats[code->index].code;
return 0;
}
-static int noon010_g_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
+static int noon010_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
{
struct noon010_info *info = to_noon010(sd);
- int ret;
-
- if (!mf)
- return -EINVAL;
+ struct v4l2_mbus_framefmt *mf;
- if (!info->curr_win || !info->curr_fmt) {
- ret = noon010_set_params(sd);
- if (ret)
- return ret;
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ if (fh) {
+ mf = v4l2_subdev_get_try_format(fh, 0);
+ fmt->format = *mf;
+ }
+ return 0;
}
+ mf = &fmt->format;
- mf->width = info->curr_win->width;
- mf->height = info->curr_win->height;
- mf->code = info->curr_fmt->code;
- mf->colorspace = info->curr_fmt->colorspace;
- mf->field = V4L2_FIELD_NONE;
+ mutex_lock(&info->lock);
+ mf->width = info->curr_win->width;
+ mf->height = info->curr_win->height;
+ mf->code = info->curr_fmt->code;
+ mf->colorspace = info->curr_fmt->colorspace;
+ mf->field = V4L2_FIELD_NONE;
+ mutex_unlock(&info->lock);
return 0;
}
/* Return nearest media bus frame format. */
-static const struct noon010_format *try_fmt(struct v4l2_subdev *sd,
+static const struct noon010_format *noon010_try_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
int i = ARRAY_SIZE(noon010_formats);
- noon010_try_frame_size(mf);
-
- while (i--)
+ while (--i)
if (mf->code == noon010_formats[i].code)
break;
-
mf->code = noon010_formats[i].code;
return &noon010_formats[i];
}
-static int noon010_try_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- if (!sd || !mf)
- return -EINVAL;
-
- try_fmt(sd, mf);
- return 0;
-}
-
-static int noon010_s_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
+static int noon010_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
{
struct noon010_info *info = to_noon010(sd);
+ const struct noon010_frmsize *size = NULL;
+ const struct noon010_format *nf;
+ struct v4l2_mbus_framefmt *mf;
+ int ret = 0;
- if (!sd || !mf)
- return -EINVAL;
-
- info->curr_fmt = try_fmt(sd, mf);
+ nf = noon010_try_fmt(sd, &fmt->format);
+ noon010_try_frame_size(&fmt->format, &size);
+ fmt->format.colorspace = V4L2_COLORSPACE_JPEG;
- return noon010_set_params(sd);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ if (fh) {
+ mf = v4l2_subdev_get_try_format(fh, 0);
+ *mf = fmt->format;
+ }
+ return 0;
+ }
+ mutex_lock(&info->lock);
+ if (!info->streaming) {
+ info->apply_new_cfg = 1;
+ info->curr_fmt = nf;
+ info->curr_win = size;
+ } else {
+ ret = -EBUSY;
+ }
+ mutex_unlock(&info->lock);
+ return ret;
}
+/* Called with struct noon010_info.lock mutex held */
static int noon010_base_config(struct v4l2_subdev *sd)
{
- struct noon010_info *info = to_noon010(sd);
- int ret;
-
- ret = noon010_bulk_write_reg(sd, noon010_base_regs);
- if (!ret) {
- info->curr_fmt = &noon010_formats[0];
- info->curr_win = &noon010_sizes[0];
+ int ret = noon010_bulk_write_reg(sd, noon010_base_regs);
+ if (!ret)
ret = noon010_set_params(sd);
- }
if (!ret)
ret = noon010_set_flip(sd, 1, 0);
- if (!ret)
- ret = noon010_power_ctrl(sd, false, false);
- /* sync the handler and the registers state */
- v4l2_ctrl_handler_setup(&to_noon010(sd)->hdl);
return ret;
}
static int noon010_s_power(struct v4l2_subdev *sd, int on)
{
struct noon010_info *info = to_noon010(sd);
- const struct noon010pc30_platform_data *pdata = info->pdata;
- int ret = 0;
-
- if (WARN(pdata == NULL, "No platform data!\n"))
- return -ENOMEM;
+ int ret;
+ mutex_lock(&info->lock);
if (on) {
ret = power_enable(info);
- if (ret)
- return ret;
- ret = noon010_base_config(sd);
+ if (!ret)
+ ret = noon010_base_config(sd);
} else {
noon010_power_ctrl(sd, false, true);
ret = power_disable(info);
- info->curr_win = NULL;
- info->curr_fmt = NULL;
}
+ mutex_unlock(&info->lock);
+
+ /* Restore the controls state */
+ if (!ret && on)
+ ret = v4l2_ctrl_handler_setup(&info->hdl);
return ret;
}
-static int noon010_g_chip_ident(struct v4l2_subdev *sd,
- struct v4l2_dbg_chip_ident *chip)
+static int noon010_s_stream(struct v4l2_subdev *sd, int on)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct noon010_info *info = to_noon010(sd);
+ int ret = 0;
- return v4l2_chip_ident_i2c_client(client, chip,
- V4L2_IDENT_NOON010PC30, 0);
+ mutex_lock(&info->lock);
+ if (!info->streaming != !on) {
+ ret = noon010_power_ctrl(sd, false, !on);
+ if (!ret)
+ info->streaming = on;
+ }
+ if (!ret && on && info->apply_new_cfg) {
+ ret = noon010_set_params(sd);
+ if (!ret)
+ info->apply_new_cfg = 0;
+ }
+ mutex_unlock(&info->lock);
+ return ret;
}
static int noon010_log_status(struct v4l2_subdev *sd)
return 0;
}
+static int noon010_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct v4l2_mbus_framefmt *mf = v4l2_subdev_get_try_format(fh, 0);
+
+ mf->width = noon010_sizes[0].width;
+ mf->height = noon010_sizes[0].height;
+ mf->code = noon010_formats[0].code;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+ mf->field = V4L2_FIELD_NONE;
+ return 0;
+}
+
+static const struct v4l2_subdev_internal_ops noon010_subdev_internal_ops = {
+ .open = noon010_open,
+};
+
static const struct v4l2_ctrl_ops noon010_ctrl_ops = {
.s_ctrl = noon010_s_ctrl,
};
static const struct v4l2_subdev_core_ops noon010_core_ops = {
- .g_chip_ident = noon010_g_chip_ident,
.s_power = noon010_s_power,
.g_ctrl = v4l2_subdev_g_ctrl,
.s_ctrl = v4l2_subdev_s_ctrl,
.log_status = noon010_log_status,
};
-static const struct v4l2_subdev_video_ops noon010_video_ops = {
- .g_mbus_fmt = noon010_g_fmt,
- .s_mbus_fmt = noon010_s_fmt,
- .try_mbus_fmt = noon010_try_fmt,
- .enum_mbus_fmt = noon010_enum_fmt,
+static struct v4l2_subdev_pad_ops noon010_pad_ops = {
+ .enum_mbus_code = noon010_enum_mbus_code,
+ .get_fmt = noon010_get_fmt,
+ .set_fmt = noon010_set_fmt,
+};
+
+static struct v4l2_subdev_video_ops noon010_video_ops = {
+ .s_stream = noon010_s_stream,
};
static const struct v4l2_subdev_ops noon010_ops = {
.core = &noon010_core_ops,
+ .pad = &noon010_pad_ops,
.video = &noon010_video_ops,
};
if (!info)
return -ENOMEM;
+ mutex_init(&info->lock);
sd = &info->sd;
strlcpy(sd->name, MODULE_NAME, sizeof(sd->name));
v4l2_i2c_subdev_init(sd, client, &noon010_ops);
+ sd->internal_ops = &noon010_subdev_internal_ops;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
v4l2_ctrl_handler_init(&info->hdl, 3);
v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops,
if (ret)
goto np_err;
- info->pdata = client->dev.platform_data;
info->i2c_reg_page = -1;
info->gpio_nreset = -EINVAL;
info->gpio_nstby = -EINVAL;
+ info->curr_fmt = &noon010_formats[0];
+ info->curr_win = &noon010_sizes[0];
if (gpio_is_valid(pdata->gpio_nreset)) {
ret = gpio_request(pdata->gpio_nreset, "NOON010PC30 NRST");
if (ret)
goto np_reg_err;
+ info->pad.flags = MEDIA_PAD_FL_SOURCE;
+ sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
+ ret = media_entity_init(&sd->entity, 1, &info->pad, 0);
+ if (ret < 0)
+ goto np_me_err;
+
ret = noon010_detect(client, info);
if (!ret)
return 0;
- /* the sensor detection failed */
+np_me_err:
regulator_bulk_free(NOON010_NUM_SUPPLIES, info->supply);
np_reg_err:
if (gpio_is_valid(info->gpio_nstby))
if (gpio_is_valid(info->gpio_nstby))
gpio_free(info->gpio_nstby);
+ media_entity_cleanup(&sd->entity);
kfree(info);
return 0;
}
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/slab.h>
+#include <linux/v4l2-mediabus.h>
+ #include <linux/module.h>
#include <media/soc_camera.h>
#include <media/v4l2-chip-ident.h>
-
+#include <media/v4l2-ctrls.h>
/* Register definitions */
#define REG_GAIN 0x00 /* range 00 - 3F */
struct ov6650 {
struct v4l2_subdev subdev;
-
- int gain;
- int blue;
- int red;
- int saturation;
- int hue;
- int brightness;
- int exposure;
- int gamma;
- int aec;
- bool vflip;
- bool hflip;
- bool awb;
- bool agc;
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* exposure/autoexposure cluster */
+ struct v4l2_ctrl *autoexposure;
+ struct v4l2_ctrl *exposure;
+ };
+ struct {
+ /* gain/autogain cluster */
+ struct v4l2_ctrl *autogain;
+ struct v4l2_ctrl *gain;
+ };
+ struct {
+ /* blue/red/autowhitebalance cluster */
+ struct v4l2_ctrl *autowb;
+ struct v4l2_ctrl *blue;
+ struct v4l2_ctrl *red;
+ };
bool half_scale; /* scale down output by 2 */
struct v4l2_rect rect; /* sensor cropping window */
unsigned long pclk_limit; /* from host */
V4L2_MBUS_FMT_Y8_1X8,
};
-static const struct v4l2_queryctrl ov6650_controls[] = {
- {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "AGC",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- },
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 0x3f,
- .step = 1,
- .default_value = DEF_GAIN,
- },
- {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "AWB",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- },
- {
- .id = V4L2_CID_BLUE_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Blue",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = DEF_BLUE,
- },
- {
- .id = V4L2_CID_RED_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Red",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = DEF_RED,
- },
- {
- .id = V4L2_CID_SATURATION,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Saturation",
- .minimum = 0,
- .maximum = 0xf,
- .step = 1,
- .default_value = 0x8,
- },
- {
- .id = V4L2_CID_HUE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Hue",
- .minimum = 0,
- .maximum = HUE_MASK,
- .step = 1,
- .default_value = DEF_HUE,
- },
- {
- .id = V4L2_CID_BRIGHTNESS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Brightness",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = 0x80,
- },
- {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "AEC",
- .minimum = 0,
- .maximum = 3,
- .step = 1,
- .default_value = 0,
- },
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = DEF_AECH,
- },
- {
- .id = V4L2_CID_GAMMA,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gamma",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = 0x12,
- },
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
-};
-
/* read a register */
static int ov6650_reg_read(struct i2c_client *client, u8 reg, u8 *val)
{
return 0;
}
-/* Alter bus settings on camera side */
-static int ov6650_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
- int ret;
-
- flags = soc_camera_apply_sensor_flags(icl, flags);
-
- if (flags & SOCAM_PCLK_SAMPLE_RISING)
- ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_PCLK_RISING, 0);
- else
- ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_PCLK_RISING);
- if (ret)
- return ret;
-
- if (flags & SOCAM_HSYNC_ACTIVE_LOW)
- ret = ov6650_reg_rmw(client, REG_COMF, COMF_HREF_LOW, 0);
- else
- ret = ov6650_reg_rmw(client, REG_COMF, 0, COMF_HREF_LOW);
- if (ret)
- return ret;
-
- if (flags & SOCAM_VSYNC_ACTIVE_HIGH)
- ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_VSYNC_HIGH, 0);
- else
- ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_VSYNC_HIGH);
-
- return ret;
-}
-
-/* Request bus settings on camera side */
-static unsigned long ov6650_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
-
- unsigned long flags = SOCAM_MASTER |
- SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW |
- SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
/* Get status of additional camera capabilities */
-static int ov6650_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int ov6550_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct ov6650 *priv = container_of(ctrl->handler, struct ov6650, hdl);
+ struct v4l2_subdev *sd = &priv->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct ov6650 *priv = to_ov6650(client);
- uint8_t reg;
- int ret = 0;
+ uint8_t reg, reg2;
+ int ret;
switch (ctrl->id) {
case V4L2_CID_AUTOGAIN:
- ctrl->value = priv->agc;
- break;
- case V4L2_CID_GAIN:
- if (priv->agc) {
- ret = ov6650_reg_read(client, REG_GAIN, ®);
- ctrl->value = reg;
- } else {
- ctrl->value = priv->gain;
- }
- break;
+ ret = ov6650_reg_read(client, REG_GAIN, ®);
+ if (!ret)
+ priv->gain->val = reg;
+ return ret;
case V4L2_CID_AUTO_WHITE_BALANCE:
- ctrl->value = priv->awb;
- break;
- case V4L2_CID_BLUE_BALANCE:
- if (priv->awb) {
- ret = ov6650_reg_read(client, REG_BLUE, ®);
- ctrl->value = reg;
- } else {
- ctrl->value = priv->blue;
- }
- break;
- case V4L2_CID_RED_BALANCE:
- if (priv->awb) {
- ret = ov6650_reg_read(client, REG_RED, ®);
- ctrl->value = reg;
- } else {
- ctrl->value = priv->red;
+ ret = ov6650_reg_read(client, REG_BLUE, ®);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_RED, ®2);
+ if (!ret) {
+ priv->blue->val = reg;
+ priv->red->val = reg2;
}
- break;
- case V4L2_CID_SATURATION:
- ctrl->value = priv->saturation;
- break;
- case V4L2_CID_HUE:
- ctrl->value = priv->hue;
- break;
- case V4L2_CID_BRIGHTNESS:
- ctrl->value = priv->brightness;
- break;
+ return ret;
case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = priv->aec;
- break;
- case V4L2_CID_EXPOSURE:
- if (priv->aec) {
- ret = ov6650_reg_read(client, REG_AECH, ®);
- ctrl->value = reg;
- } else {
- ctrl->value = priv->exposure;
- }
- break;
- case V4L2_CID_GAMMA:
- ctrl->value = priv->gamma;
- break;
- case V4L2_CID_VFLIP:
- ctrl->value = priv->vflip;
- break;
- case V4L2_CID_HFLIP:
- ctrl->value = priv->hflip;
- break;
+ ret = ov6650_reg_read(client, REG_AECH, ®);
+ if (!ret)
+ priv->exposure->val = reg;
+ return ret;
}
- return ret;
+ return -EINVAL;
}
/* Set status of additional camera capabilities */
-static int ov6650_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int ov6550_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct ov6650 *priv = container_of(ctrl->handler, struct ov6650, hdl);
+ struct v4l2_subdev *sd = &priv->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct ov6650 *priv = to_ov6650(client);
- int ret = 0;
+ int ret;
switch (ctrl->id) {
case V4L2_CID_AUTOGAIN:
ret = ov6650_reg_rmw(client, REG_COMB,
- ctrl->value ? COMB_AGC : 0, COMB_AGC);
- if (!ret)
- priv->agc = ctrl->value;
- break;
- case V4L2_CID_GAIN:
- ret = ov6650_reg_write(client, REG_GAIN, ctrl->value);
- if (!ret)
- priv->gain = ctrl->value;
- break;
+ ctrl->val ? COMB_AGC : 0, COMB_AGC);
+ if (!ret && !ctrl->val)
+ ret = ov6650_reg_write(client, REG_GAIN, priv->gain->val);
+ return ret;
case V4L2_CID_AUTO_WHITE_BALANCE:
ret = ov6650_reg_rmw(client, REG_COMB,
- ctrl->value ? COMB_AWB : 0, COMB_AWB);
- if (!ret)
- priv->awb = ctrl->value;
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = ov6650_reg_write(client, REG_BLUE, ctrl->value);
- if (!ret)
- priv->blue = ctrl->value;
- break;
- case V4L2_CID_RED_BALANCE:
- ret = ov6650_reg_write(client, REG_RED, ctrl->value);
- if (!ret)
- priv->red = ctrl->value;
- break;
+ ctrl->val ? COMB_AWB : 0, COMB_AWB);
+ if (!ret && !ctrl->val) {
+ ret = ov6650_reg_write(client, REG_BLUE, priv->blue->val);
+ if (!ret)
+ ret = ov6650_reg_write(client, REG_RED,
+ priv->red->val);
+ }
+ return ret;
case V4L2_CID_SATURATION:
- ret = ov6650_reg_rmw(client, REG_SAT, SET_SAT(ctrl->value),
+ return ov6650_reg_rmw(client, REG_SAT, SET_SAT(ctrl->val),
SAT_MASK);
- if (!ret)
- priv->saturation = ctrl->value;
- break;
case V4L2_CID_HUE:
- ret = ov6650_reg_rmw(client, REG_HUE, SET_HUE(ctrl->value),
+ return ov6650_reg_rmw(client, REG_HUE, SET_HUE(ctrl->val),
HUE_MASK);
- if (!ret)
- priv->hue = ctrl->value;
- break;
case V4L2_CID_BRIGHTNESS:
- ret = ov6650_reg_write(client, REG_BRT, ctrl->value);
- if (!ret)
- priv->brightness = ctrl->value;
- break;
+ return ov6650_reg_write(client, REG_BRT, ctrl->val);
case V4L2_CID_EXPOSURE_AUTO:
- switch (ctrl->value) {
- case V4L2_EXPOSURE_AUTO:
- ret = ov6650_reg_rmw(client, REG_COMB, COMB_AEC, 0);
- break;
- default:
- ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AEC);
- break;
- }
- if (!ret)
- priv->aec = ctrl->value;
- break;
- case V4L2_CID_EXPOSURE:
- ret = ov6650_reg_write(client, REG_AECH, ctrl->value);
- if (!ret)
- priv->exposure = ctrl->value;
- break;
+ ret = ov6650_reg_rmw(client, REG_COMB, ctrl->val ==
+ V4L2_EXPOSURE_AUTO ? COMB_AEC : 0, COMB_AEC);
+ if (!ret && ctrl->val == V4L2_EXPOSURE_MANUAL)
+ ret = ov6650_reg_write(client, REG_AECH,
+ priv->exposure->val);
+ return ret;
case V4L2_CID_GAMMA:
- ret = ov6650_reg_write(client, REG_GAM1, ctrl->value);
- if (!ret)
- priv->gamma = ctrl->value;
- break;
+ return ov6650_reg_write(client, REG_GAM1, ctrl->val);
case V4L2_CID_VFLIP:
- ret = ov6650_reg_rmw(client, REG_COMB,
- ctrl->value ? COMB_FLIP_V : 0, COMB_FLIP_V);
- if (!ret)
- priv->vflip = ctrl->value;
- break;
+ return ov6650_reg_rmw(client, REG_COMB,
+ ctrl->val ? COMB_FLIP_V : 0, COMB_FLIP_V);
case V4L2_CID_HFLIP:
- ret = ov6650_reg_rmw(client, REG_COMB,
- ctrl->value ? COMB_FLIP_H : 0, COMB_FLIP_H);
- if (!ret)
- priv->hflip = ctrl->value;
- break;
+ return ov6650_reg_rmw(client, REG_COMB,
+ ctrl->val ? COMB_FLIP_H : 0, COMB_FLIP_H);
}
- return ret;
+ return -EINVAL;
}
/* Get chip identification */
static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id;
struct soc_camera_sense *sense = icd->sense;
struct ov6650 *priv = to_ov6650(client);
bool half_scale = !is_unscaled_ok(mf->width, mf->height, &priv->rect);
return ret;
}
-static int ov6650_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client)
+static int ov6650_video_probe(struct i2c_client *client)
{
u8 pidh, pidl, midh, midl;
int ret = 0;
return ret;
}
-static struct soc_camera_ops ov6650_ops = {
- .set_bus_param = ov6650_set_bus_param,
- .query_bus_param = ov6650_query_bus_param,
- .controls = ov6650_controls,
- .num_controls = ARRAY_SIZE(ov6650_controls),
+static const struct v4l2_ctrl_ops ov6550_ctrl_ops = {
+ .g_volatile_ctrl = ov6550_g_volatile_ctrl,
+ .s_ctrl = ov6550_s_ctrl,
};
static struct v4l2_subdev_core_ops ov6650_core_ops = {
- .g_ctrl = ov6650_g_ctrl,
- .s_ctrl = ov6650_s_ctrl,
.g_chip_ident = ov6650_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = ov6650_get_register,
#endif
};
+/* Request bus settings on camera side */
+static int ov6650_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags = V4L2_MBUS_MASTER |
+ V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
+ V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+/* Alter bus settings on camera side */
+static int ov6650_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+ unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
+ int ret;
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
+ ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_PCLK_RISING, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_PCLK_RISING);
+ if (ret)
+ return ret;
+
+ if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+ ret = ov6650_reg_rmw(client, REG_COMF, COMF_HREF_LOW, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMF, 0, COMF_HREF_LOW);
+ if (ret)
+ return ret;
+
+ if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
+ ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_VSYNC_HIGH, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_VSYNC_HIGH);
+
+ return ret;
+}
+
static struct v4l2_subdev_video_ops ov6650_video_ops = {
.s_stream = ov6650_s_stream,
.g_mbus_fmt = ov6650_g_fmt,
.s_crop = ov6650_s_crop,
.g_parm = ov6650_g_parm,
.s_parm = ov6650_s_parm,
+ .g_mbus_config = ov6650_g_mbus_config,
+ .s_mbus_config = ov6650_s_mbus_config,
};
static struct v4l2_subdev_ops ov6650_subdev_ops = {
const struct i2c_device_id *did)
{
struct ov6650 *priv;
- struct soc_camera_device *icd = client->dev.platform_data;
- struct soc_camera_link *icl;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
int ret;
- if (!icd) {
- dev_err(&client->dev, "Missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "Missing platform_data for driver\n");
return -EINVAL;
}
v4l2_i2c_subdev_init(&priv->subdev, client, &ov6650_subdev_ops);
+ v4l2_ctrl_handler_init(&priv->hdl, 13);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ priv->autogain = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+ priv->gain = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_GAIN, 0, 0x3f, 1, DEF_GAIN);
+ priv->autowb = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
+ priv->blue = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_BLUE_BALANCE, 0, 0xff, 1, DEF_BLUE);
+ priv->red = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_RED_BALANCE, 0, 0xff, 1, DEF_RED);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_SATURATION, 0, 0xf, 1, 0x8);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_HUE, 0, HUE_MASK, 1, DEF_HUE);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, 0, 0xff, 1, 0x80);
+ priv->autoexposure = v4l2_ctrl_new_std_menu(&priv->hdl,
+ &ov6550_ctrl_ops, V4L2_CID_EXPOSURE_AUTO,
+ V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO);
+ priv->exposure = v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_EXPOSURE, 0, 0xff, 1, DEF_AECH);
+ v4l2_ctrl_new_std(&priv->hdl, &ov6550_ctrl_ops,
+ V4L2_CID_GAMMA, 0, 0xff, 1, 0x12);
+
+ priv->subdev.ctrl_handler = &priv->hdl;
+ if (priv->hdl.error) {
+ int err = priv->hdl.error;
- icd->ops = &ov6650_ops;
+ kfree(priv);
+ return err;
+ }
+ v4l2_ctrl_auto_cluster(2, &priv->autogain, 0, true);
+ v4l2_ctrl_auto_cluster(3, &priv->autowb, 0, true);
+ v4l2_ctrl_auto_cluster(2, &priv->autoexposure,
+ V4L2_EXPOSURE_MANUAL, true);
priv->rect.left = DEF_HSTRT << 1;
priv->rect.top = DEF_VSTRT << 1;
priv->code = V4L2_MBUS_FMT_YUYV8_2X8;
priv->colorspace = V4L2_COLORSPACE_JPEG;
- ret = ov6650_video_probe(icd, client);
+ ret = ov6650_video_probe(client);
+ if (!ret)
+ ret = v4l2_ctrl_handler_setup(&priv->hdl);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&priv->hdl);
kfree(priv);
}
{
struct ov6650 *priv = to_ov6650(client);
+ v4l2_device_unregister_subdev(&priv->subdev);
+ v4l2_ctrl_handler_free(&priv->hdl);
kfree(priv);
return 0;
}
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <linux/firmware.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
pvr2_subdev_set_control(hdw, id, #lab, (hdw)->lab##_val); \
}
+int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std)
+{
+ v4l2_device_call_all(&hdw->v4l2_dev, 0,
+ video, querystd, std);
+ return 0;
+}
+
/* Execute whatever commands are required to update the state of all the
sub-devices so that they match our current control values. */
static void pvr2_subdev_update(struct pvr2_hdw *hdw)
#include "pvrusb2-v4l2.h"
#include "pvrusb2-ioread.h"
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
break;
}
+ case VIDIOC_QUERYSTD:
+ {
+ v4l2_std_id *std = arg;
+ *std = V4L2_STD_ALL;
+ ret = pvr2_hdw_get_detected_std(hdw, std);
+ break;
+ }
+
case VIDIOC_G_STD:
{
int val = 0;
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/slab.h>
+#include <linux/v4l2-mediabus.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/rj54n1cb0c.h>
#include <media/soc_camera.h>
-#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-ctrls.h>
#define RJ54N1_DEV_CODE 0x0400
#define RJ54N1_DEV_CODE2 0x0401
struct rj54n1 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
struct rj54n1_clock_div clk_div;
const struct rj54n1_datafmt *fmt;
struct v4l2_rect rect; /* Sensor window */
return reg_set(client, RJ54N1_STILL_CONTROL, (!enable) << 7, 0x80);
}
-static int rj54n1_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- /* Figures 2.5-1 to 2.5-3 - default falling pixclk edge */
-
- if (flags & SOCAM_PCLK_SAMPLE_RISING)
- return reg_write(client, RJ54N1_OUT_SIGPO, 1 << 4);
- else
- return reg_write(client, RJ54N1_OUT_SIGPO, 0);
-}
-
-static unsigned long rj54n1_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- const unsigned long flags =
- SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING |
- SOCAM_MASTER | SOCAM_DATAWIDTH_8 |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_DATA_ACTIVE_HIGH;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
static int rj54n1_set_rect(struct i2c_client *client,
u16 reg_x, u16 reg_y, u16 reg_xy,
u32 width, u32 height)
}
#endif
-static const struct v4l2_queryctrl rj54n1_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 127,
- .step = 1,
- .default_value = 66,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto white balance",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- },
-};
-
-static struct soc_camera_ops rj54n1_ops = {
- .set_bus_param = rj54n1_set_bus_param,
- .query_bus_param = rj54n1_query_bus_param,
- .controls = rj54n1_controls,
- .num_controls = ARRAY_SIZE(rj54n1_controls),
-};
-
-static int rj54n1_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int rj54n1_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct rj54n1 *rj54n1 = container_of(ctrl->handler, struct rj54n1, hdl);
+ struct v4l2_subdev *sd = &rj54n1->subdev;
struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct rj54n1 *rj54n1 = to_rj54n1(client);
int data;
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- data = reg_read(client, RJ54N1_MIRROR_STILL_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !(data & 1);
- break;
- case V4L2_CID_HFLIP:
- data = reg_read(client, RJ54N1_MIRROR_STILL_MODE);
- if (data < 0)
- return -EIO;
- ctrl->value = !(data & 2);
- break;
- case V4L2_CID_GAIN:
- data = reg_read(client, RJ54N1_Y_GAIN);
- if (data < 0)
- return -EIO;
-
- ctrl->value = data / 2;
- break;
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ctrl->value = rj54n1->auto_wb;
- break;
- }
-
- return 0;
-}
-
-static int rj54n1_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- int data;
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct rj54n1 *rj54n1 = to_rj54n1(client);
- const struct v4l2_queryctrl *qctrl;
-
- qctrl = soc_camera_find_qctrl(&rj54n1_ops, ctrl->id);
- if (!qctrl)
- return -EINVAL;
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 1);
else
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 1, 1);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_HFLIP:
- if (ctrl->value)
+ if (ctrl->val)
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 2);
else
data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 2, 2);
if (data < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_GAIN:
- if (ctrl->value > qctrl->maximum ||
- ctrl->value < qctrl->minimum)
- return -EINVAL;
- else if (reg_write(client, RJ54N1_Y_GAIN, ctrl->value * 2) < 0)
+ if (reg_write(client, RJ54N1_Y_GAIN, ctrl->val * 2) < 0)
return -EIO;
- break;
+ return 0;
case V4L2_CID_AUTO_WHITE_BALANCE:
/* Auto WB area - whole image */
- if (reg_set(client, RJ54N1_WB_SEL_WEIGHT_I, ctrl->value << 7,
+ if (reg_set(client, RJ54N1_WB_SEL_WEIGHT_I, ctrl->val << 7,
0x80) < 0)
return -EIO;
- rj54n1->auto_wb = ctrl->value;
- break;
+ rj54n1->auto_wb = ctrl->val;
+ return 0;
}
- return 0;
+ return -EINVAL;
}
+static const struct v4l2_ctrl_ops rj54n1_ctrl_ops = {
+ .s_ctrl = rj54n1_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops rj54n1_subdev_core_ops = {
- .g_ctrl = rj54n1_g_ctrl,
- .s_ctrl = rj54n1_s_ctrl,
.g_chip_ident = rj54n1_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = rj54n1_g_register,
#endif
};
+static int rj54n1_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ cfg->flags =
+ V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int rj54n1_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
+
+ /* Figures 2.5-1 to 2.5-3 - default falling pixclk edge */
+ if (soc_camera_apply_board_flags(icl, cfg) &
+ V4L2_MBUS_PCLK_SAMPLE_RISING)
+ return reg_write(client, RJ54N1_OUT_SIGPO, 1 << 4);
+ else
+ return reg_write(client, RJ54N1_OUT_SIGPO, 0);
+}
+
static struct v4l2_subdev_video_ops rj54n1_subdev_video_ops = {
.s_stream = rj54n1_s_stream,
.s_mbus_fmt = rj54n1_s_fmt,
.g_crop = rj54n1_g_crop,
.s_crop = rj54n1_s_crop,
.cropcap = rj54n1_cropcap,
+ .g_mbus_config = rj54n1_g_mbus_config,
+ .s_mbus_config = rj54n1_s_mbus_config,
};
static struct v4l2_subdev_ops rj54n1_subdev_ops = {
* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one
*/
-static int rj54n1_video_probe(struct soc_camera_device *icd,
- struct i2c_client *client,
+static int rj54n1_video_probe(struct i2c_client *client,
struct rj54n1_pdata *priv)
{
int data1, data2;
int ret;
- /* We must have a parent by now. And it cannot be a wrong one. */
- BUG_ON(!icd->parent ||
- to_soc_camera_host(icd->parent)->nr != icd->iface);
-
/* Read out the chip version register */
data1 = reg_read(client, RJ54N1_DEV_CODE);
data2 = reg_read(client, RJ54N1_DEV_CODE2);
const struct i2c_device_id *did)
{
struct rj54n1 *rj54n1;
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl;
struct rj54n1_pdata *rj54n1_priv;
int ret;
- if (!icd) {
- dev_err(&client->dev, "RJ54N1CB0C: missing soc-camera data!\n");
- return -EINVAL;
- }
-
- icl = to_soc_camera_link(icd);
if (!icl || !icl->priv) {
dev_err(&client->dev, "RJ54N1CB0C: missing platform data!\n");
return -EINVAL;
return -ENOMEM;
v4l2_i2c_subdev_init(&rj54n1->subdev, client, &rj54n1_subdev_ops);
+ v4l2_ctrl_handler_init(&rj54n1->hdl, 4);
+ v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops,
+ V4L2_CID_GAIN, 0, 127, 1, 66);
+ v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
+ rj54n1->subdev.ctrl_handler = &rj54n1->hdl;
+ if (rj54n1->hdl.error) {
+ int err = rj54n1->hdl.error;
- icd->ops = &rj54n1_ops;
+ kfree(rj54n1);
+ return err;
+ }
rj54n1->clk_div = clk_div;
rj54n1->rect.left = RJ54N1_COLUMN_SKIP;
rj54n1->tgclk_mhz = (rj54n1_priv->mclk_freq / PLL_L * PLL_N) /
(clk_div.ratio_tg + 1) / (clk_div.ratio_t + 1);
- ret = rj54n1_video_probe(icd, client, rj54n1_priv);
+ ret = rj54n1_video_probe(client, rj54n1_priv);
if (ret < 0) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&rj54n1->hdl);
kfree(rj54n1);
return ret;
}
-
- return ret;
+ return v4l2_ctrl_handler_setup(&rj54n1->hdl);
}
static int rj54n1_remove(struct i2c_client *client)
{
struct rj54n1 *rj54n1 = to_rj54n1(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- icd->ops = NULL;
+ v4l2_device_unregister_subdev(&rj54n1->subdev);
if (icl->free_bus)
icl->free_bus(icl);
+ v4l2_ctrl_handler_free(&rj54n1->hdl);
kfree(rj54n1);
return 0;
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/sh_mobile_ceu.h>
#include <media/sh_mobile_csi2.h>
#include <media/soc_camera.h>
+#include <media/soc_mediabus.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
struct v4l2_subdev subdev;
struct list_head list;
unsigned int irq;
+ unsigned long mipi_flags;
void __iomem *base;
struct platform_device *pdev;
struct sh_csi2_client_config *client;
- unsigned long (*query_bus_param)(struct soc_camera_device *);
- int (*set_bus_param)(struct soc_camera_device *, unsigned long);
};
static int sh_csi2_try_fmt(struct v4l2_subdev *sd,
return 0;
}
+static int sh_csi2_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+
+ return 0;
+}
+
+static int sh_csi2_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct sh_csi2 *priv = container_of(sd, struct sh_csi2, subdev);
+ struct soc_camera_device *icd = (struct soc_camera_device *)sd->grp_id;
+ struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
+ struct v4l2_mbus_config client_cfg = {.type = V4L2_MBUS_CSI2,
+ .flags = priv->mipi_flags};
+
+ return v4l2_subdev_call(client_sd, video, s_mbus_config, &client_cfg);
+}
+
static struct v4l2_subdev_video_ops sh_csi2_subdev_video_ops = {
.s_mbus_fmt = sh_csi2_s_fmt,
.try_mbus_fmt = sh_csi2_try_fmt,
+ .g_mbus_config = sh_csi2_g_mbus_config,
+ .s_mbus_config = sh_csi2_s_mbus_config,
};
static void sh_csi2_hwinit(struct sh_csi2 *priv)
udelay(5);
iowrite32(0x00000000, priv->base + SH_CSI2_SRST);
- if (priv->client->lanes & 3)
- tmp |= priv->client->lanes & 3;
- else
- /* Default - both lanes */
- tmp |= 3;
+ switch (pdata->type) {
+ case SH_CSI2C:
+ if (priv->client->lanes == 1)
+ tmp |= 1;
+ else
+ /* Default - both lanes */
+ tmp |= 3;
+ break;
+ case SH_CSI2I:
+ if (!priv->client->lanes || priv->client->lanes > 4)
+ /* Default - all 4 lanes */
+ tmp |= 0xf;
+ else
+ tmp |= (1 << priv->client->lanes) - 1;
+ }
if (priv->client->phy == SH_CSI2_PHY_MAIN)
tmp |= 0x8000;
iowrite32(tmp, priv->base + SH_CSI2_CHKSUM);
}
-static int sh_csi2_set_bus_param(struct soc_camera_device *icd,
- unsigned long flags)
-{
- return 0;
-}
-
-static unsigned long sh_csi2_query_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_link *icl = to_soc_camera_link(icd);
- const unsigned long flags = SOCAM_PCLK_SAMPLE_RISING |
- SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
- SOCAM_MASTER | SOCAM_DATAWIDTH_8 | SOCAM_DATA_ACTIVE_HIGH;
-
- return soc_camera_apply_sensor_flags(icl, flags);
-}
-
static int sh_csi2_client_connect(struct sh_csi2 *priv)
{
struct sh_csi2_pdata *pdata = priv->pdev->dev.platform_data;
- struct v4l2_subdev *sd, *csi2_sd = &priv->subdev;
- struct soc_camera_device *icd = NULL;
+ struct soc_camera_device *icd = (struct soc_camera_device *)priv->subdev.grp_id;
+ struct v4l2_subdev *client_sd = soc_camera_to_subdev(icd);
struct device *dev = v4l2_get_subdevdata(&priv->subdev);
- int i;
+ struct v4l2_mbus_config cfg;
+ unsigned long common_flags, csi2_flags;
+ int i, ret;
- v4l2_device_for_each_subdev(sd, csi2_sd->v4l2_dev)
- if (sd->grp_id) {
- icd = (struct soc_camera_device *)sd->grp_id;
- break;
- }
-
- if (!icd)
- return -EINVAL;
+ if (priv->client)
+ return -EBUSY;
for (i = 0; i < pdata->num_clients; i++)
if (&pdata->clients[i].pdev->dev == icd->pdev)
if (i == pdata->num_clients)
return -ENODEV;
- priv->client = pdata->clients + i;
+ /* Check if we can support this camera */
+ csi2_flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK | V4L2_MBUS_CSI2_1_LANE;
+
+ switch (pdata->type) {
+ case SH_CSI2C:
+ if (pdata->clients[i].lanes != 1)
+ csi2_flags |= V4L2_MBUS_CSI2_2_LANE;
+ break;
+ case SH_CSI2I:
+ switch (pdata->clients[i].lanes) {
+ default:
+ csi2_flags |= V4L2_MBUS_CSI2_4_LANE;
+ case 3:
+ csi2_flags |= V4L2_MBUS_CSI2_3_LANE;
+ case 2:
+ csi2_flags |= V4L2_MBUS_CSI2_2_LANE;
+ }
+ }
- priv->set_bus_param = icd->ops->set_bus_param;
- priv->query_bus_param = icd->ops->query_bus_param;
- icd->ops->set_bus_param = sh_csi2_set_bus_param;
- icd->ops->query_bus_param = sh_csi2_query_bus_param;
+ cfg.type = V4L2_MBUS_CSI2;
+ ret = v4l2_subdev_call(client_sd, video, g_mbus_config, &cfg);
+ if (ret == -ENOIOCTLCMD)
+ common_flags = csi2_flags;
+ else if (!ret)
+ common_flags = soc_mbus_config_compatible(&cfg,
+ csi2_flags);
+ else
+ common_flags = 0;
- csi2_sd->grp_id = (long)icd;
+ if (!common_flags)
+ return -EINVAL;
+
+ /* All good: camera MIPI configuration supported */
+ priv->mipi_flags = common_flags;
+ priv->client = pdata->clients + i;
pm_runtime_get_sync(dev);
static void sh_csi2_client_disconnect(struct sh_csi2 *priv)
{
- struct soc_camera_device *icd = (struct soc_camera_device *)priv->subdev.grp_id;
+ if (!priv->client)
+ return;
priv->client = NULL;
- priv->subdev.grp_id = 0;
-
- /* Driver is about to be unbound */
- icd->ops->set_bus_param = priv->set_bus_param;
- icd->ops->query_bus_param = priv->query_bus_param;
- priv->set_bus_param = NULL;
- priv->query_bus_param = NULL;
pm_runtime_put(v4l2_get_subdevdata(&priv->subdev));
}
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-mediabus.h>
return ret;
}
-static int sr030pc30_s_stream(struct v4l2_subdev *sd, int enable)
-{
- return 0;
-}
-
static int sr030pc30_s_power(struct v4l2_subdev *sd, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
};
static const struct v4l2_subdev_video_ops sr030pc30_video_ops = {
- .s_stream = sr030pc30_s_stream,
.g_mbus_fmt = sr030pc30_g_fmt,
.s_mbus_fmt = sr030pc30_s_fmt,
.try_mbus_fmt = sr030pc30_try_fmt,
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
+ #include <linux/module.h>
#include <media/tvp7002.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
{ TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
{ TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
{ TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
- { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
+ { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE },
{ TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
{ 0x32, 0x18, TVP7002_RESERVED },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
- { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
u8 cpl_msb;
int index;
+ /* Return invalid preset if no active input is detected */
+ qpreset->preset = V4L2_DV_INVALID;
+
device = to_tvp7002(sd);
/* Read standards from device registers */
if (index == NUM_PRESETS) {
v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
lpfr, cpln);
- /* Could not detect a signal, so return the 'invalid' preset */
- qpreset->preset = V4L2_DV_INVALID;
return 0;
}
#include <linux/ctype.h>
#include <linux/slab.h>
+ #include <linux/export.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
};
/* Small helper function to determine if the autocluster is set to manual
- mode. In that case the is_volatile flag should be ignored. */
+ mode. */
static bool is_cur_manual(const struct v4l2_ctrl *master)
{
return master->is_auto && master->cur.val == master->manual_mode_value;
"Disabled",
"50 Hz",
"60 Hz",
+ "Auto",
NULL
};
static const char * const camera_exposure_auto[] = {
break;
}
if (update_inactive) {
- ctrl->flags &= ~V4L2_CTRL_FLAG_INACTIVE;
- if (!is_cur_manual(ctrl->cluster[0]))
+ /* Note: update_inactive can only be true for auto clusters. */
+ ctrl->flags &=
+ ~(V4L2_CTRL_FLAG_INACTIVE | V4L2_CTRL_FLAG_VOLATILE);
+ if (!is_cur_manual(ctrl->cluster[0])) {
ctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
+ if (ctrl->cluster[0]->has_volatiles)
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+ }
}
if (changed || update_inactive) {
/* If a control was changed that was not one of the controls
type, min, max,
is_menu ? cfg->menu_skip_mask : step,
def, flags, qmenu, priv);
- if (ctrl) {
+ if (ctrl)
ctrl->is_private = cfg->is_private;
- ctrl->is_volatile = cfg->is_volatile;
- }
return ctrl;
}
EXPORT_SYMBOL(v4l2_ctrl_new_custom);
/* Cluster controls */
void v4l2_ctrl_cluster(unsigned ncontrols, struct v4l2_ctrl **controls)
{
+ bool has_volatiles = false;
int i;
/* The first control is the master control and it must not be NULL */
if (controls[i]) {
controls[i]->cluster = controls;
controls[i]->ncontrols = ncontrols;
+ if (controls[i]->flags & V4L2_CTRL_FLAG_VOLATILE)
+ has_volatiles = true;
}
}
+ controls[0]->has_volatiles = has_volatiles;
}
EXPORT_SYMBOL(v4l2_ctrl_cluster);
u8 manual_val, bool set_volatile)
{
struct v4l2_ctrl *master = controls[0];
- u32 flag;
+ u32 flag = 0;
int i;
v4l2_ctrl_cluster(ncontrols, controls);
WARN_ON(ncontrols <= 1);
WARN_ON(manual_val < master->minimum || manual_val > master->maximum);
+ WARN_ON(set_volatile && !has_op(master, g_volatile_ctrl));
master->is_auto = true;
+ master->has_volatiles = set_volatile;
master->manual_mode_value = manual_val;
master->flags |= V4L2_CTRL_FLAG_UPDATE;
- flag = is_cur_manual(master) ? 0 : V4L2_CTRL_FLAG_INACTIVE;
+
+ if (!is_cur_manual(master))
+ flag = V4L2_CTRL_FLAG_INACTIVE |
+ (set_volatile ? V4L2_CTRL_FLAG_VOLATILE : 0);
for (i = 1; i < ncontrols; i++)
- if (controls[i]) {
- controls[i]->is_volatile = set_volatile;
+ if (controls[i])
controls[i]->flags |= flag;
- }
}
EXPORT_SYMBOL(v4l2_ctrl_auto_cluster);
static void log_ctrl(const struct v4l2_ctrl *ctrl,
const char *prefix, const char *colon)
{
- int fl_inact = ctrl->flags & V4L2_CTRL_FLAG_INACTIVE;
- int fl_grabbed = ctrl->flags & V4L2_CTRL_FLAG_GRABBED;
-
if (ctrl->flags & (V4L2_CTRL_FLAG_DISABLED | V4L2_CTRL_FLAG_WRITE_ONLY))
return;
if (ctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS)
printk(KERN_CONT "unknown type %d", ctrl->type);
break;
}
- if (fl_inact && fl_grabbed)
- printk(KERN_CONT " (inactive, grabbed)\n");
- else if (fl_inact)
- printk(KERN_CONT " (inactive)\n");
- else if (fl_grabbed)
- printk(KERN_CONT " (grabbed)\n");
- else
- printk(KERN_CONT "\n");
+ if (ctrl->flags & (V4L2_CTRL_FLAG_INACTIVE |
+ V4L2_CTRL_FLAG_GRABBED |
+ V4L2_CTRL_FLAG_VOLATILE)) {
+ if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
+ printk(KERN_CONT " inactive");
+ if (ctrl->flags & V4L2_CTRL_FLAG_GRABBED)
+ printk(KERN_CONT " grabbed");
+ if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE)
+ printk(KERN_CONT " volatile");
+ }
+ printk(KERN_CONT "\n");
}
/* Log all controls owned by the handler */
v4l2_ctrl_lock(master);
/* g_volatile_ctrl will update the new control values */
- if (has_op(master, g_volatile_ctrl) && !is_cur_manual(master)) {
+ if ((master->flags & V4L2_CTRL_FLAG_VOLATILE) ||
+ (master->has_volatiles && !is_cur_manual(master))) {
for (j = 0; j < master->ncontrols; j++)
cur_to_new(master->cluster[j]);
ret = call_op(master, g_volatile_ctrl);
v4l2_ctrl_lock(master);
/* g_volatile_ctrl will update the current control values */
- if (ctrl->is_volatile && !is_cur_manual(master)) {
+ if (ctrl->flags & V4L2_CTRL_FLAG_VOLATILE) {
for (i = 0; i < master->ncontrols; i++)
cur_to_new(master->cluster[i]);
ret = call_op(master, g_volatile_ctrl);
return 0;
}
+/* Obtain the current volatile values of an autocluster and mark them
+ as new. */
+static void update_from_auto_cluster(struct v4l2_ctrl *master)
+{
+ int i;
+
+ for (i = 0; i < master->ncontrols; i++)
+ cur_to_new(master->cluster[i]);
+ if (!call_op(master, g_volatile_ctrl))
+ for (i = 1; i < master->ncontrols; i++)
+ if (master->cluster[i])
+ master->cluster[i]->is_new = 1;
+}
+
/* Try or try-and-set controls */
static int try_set_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,
struct v4l2_ext_controls *cs,
if (master->cluster[j])
master->cluster[j]->is_new = 0;
+ /* For volatile autoclusters that are currently in auto mode
+ we need to discover if it will be set to manual mode.
+ If so, then we have to copy the current volatile values
+ first since those will become the new manual values (which
+ may be overwritten by explicit new values from this set
+ of controls). */
+ if (master->is_auto && master->has_volatiles &&
+ !is_cur_manual(master)) {
+ /* Pick an initial non-manual value */
+ s32 new_auto_val = master->manual_mode_value + 1;
+ u32 tmp_idx = idx;
+
+ do {
+ /* Check if the auto control is part of the
+ list, and remember the new value. */
+ if (helpers[tmp_idx].ctrl == master)
+ new_auto_val = cs->controls[tmp_idx].value;
+ tmp_idx = helpers[tmp_idx].next;
+ } while (tmp_idx);
+ /* If the new value == the manual value, then copy
+ the current volatile values. */
+ if (new_auto_val == master->manual_mode_value)
+ update_from_auto_cluster(master);
+ }
+
/* Copy the new caller-supplied control values.
user_to_new() sets 'is_new' to 1. */
do {
if (master->cluster[i])
master->cluster[i]->is_new = 0;
+ /* For autoclusters with volatiles that are switched from auto to
+ manual mode we have to update the current volatile values since
+ those will become the initial manual values after such a switch. */
+ if (master->is_auto && master->has_volatiles && ctrl == master &&
+ !is_cur_manual(master) && *val == master->manual_mode_value)
+ update_from_auto_cluster(master);
ctrl->val = *val;
ctrl->is_new = 1;
ret = try_or_set_cluster(fh, master, true);
#include <linux/types.h>
#include <linux/ioctl.h>
+ #include <linux/module.h>
#include <linux/i2c.h>
+#include <linux/slab.h>
#if defined(CONFIG_SPI)
#include <linux/spi/spi.h>
#endif
}
EXPORT_SYMBOL_GPL(v4l2_device_register_subdev);
+static void v4l2_device_release_subdev_node(struct video_device *vdev)
+{
+ struct v4l2_subdev *sd = video_get_drvdata(vdev);
+ sd->devnode = NULL;
+ kfree(vdev);
+}
+
int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev)
{
struct video_device *vdev;
if (!(sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE))
continue;
- vdev = &sd->devnode;
+ vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
+ if (!vdev) {
+ err = -ENOMEM;
+ goto clean_up;
+ }
+
+ video_set_drvdata(vdev, sd);
strlcpy(vdev->name, sd->name, sizeof(vdev->name));
vdev->v4l2_dev = v4l2_dev;
vdev->fops = &v4l2_subdev_fops;
- vdev->release = video_device_release_empty;
+ vdev->release = v4l2_device_release_subdev_node;
vdev->ctrl_handler = sd->ctrl_handler;
err = __video_register_device(vdev, VFL_TYPE_SUBDEV, -1, 1,
sd->owner);
- if (err < 0)
- return err;
+ if (err < 0) {
+ kfree(vdev);
+ goto clean_up;
+ }
#if defined(CONFIG_MEDIA_CONTROLLER)
sd->entity.v4l.major = VIDEO_MAJOR;
sd->entity.v4l.minor = vdev->minor;
#endif
+ sd->devnode = vdev;
}
return 0;
+
+clean_up:
+ list_for_each_entry(sd, &v4l2_dev->subdevs, list) {
+ if (!sd->devnode)
+ break;
+ video_unregister_device(sd->devnode);
+ }
+
+ return err;
}
EXPORT_SYMBOL_GPL(v4l2_device_register_subdev_nodes);
if (v4l2_dev->mdev)
media_device_unregister_entity(&sd->entity);
#endif
- video_unregister_device(&sd->devnode);
+ video_unregister_device(sd->devnode);
module_put(sd->owner);
}
EXPORT_SYMBOL_GPL(v4l2_device_unregister_subdev);
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/videodev2.h>
+ #include <linux/export.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
case VIDIOC_UNSUBSCRIBE_EVENT:
return v4l2_subdev_call(sd, core, unsubscribe_event, vfh, arg);
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ case VIDIOC_DBG_G_REGISTER:
+ {
+ struct v4l2_dbg_register *p = arg;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ return v4l2_subdev_call(sd, core, g_register, p);
+ }
+ case VIDIOC_DBG_S_REGISTER:
+ {
+ struct v4l2_dbg_register *p = arg;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ return v4l2_subdev_call(sd, core, s_register, p);
+ }
+#endif
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
case VIDIOC_SUBDEV_G_FMT: {
struct v4l2_subdev_format *format = arg;
#include <linux/notifier.h>
#include <linux/slab.h>
#include <linux/err.h>
+ #include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/interrupt.h>
char *name;
};
-static const struct ab_family_id ids[] __devinitdata = {
+static const struct ab_family_id ids[] __devinitconst = {
/* AB3100 */
{
.id = 0xc0,
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio.h>
+ #include <linux/export.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
return gpiochip_remove(&asic->gpio);
}
-static int asic3_clk_enable(struct asic3 *asic, struct asic3_clk *clk)
+static void asic3_clk_enable(struct asic3 *asic, struct asic3_clk *clk)
{
unsigned long flags;
u32 cdex;
asic3_write_register(asic, ASIC3_OFFSET(CLOCK, CDEX), cdex);
}
spin_unlock_irqrestore(&asic->lock, flags);
-
- return 0;
}
static void asic3_clk_disable(struct asic3 *asic, struct asic3_clk *clk)
.name = "tmio-mmc",
.enable = asic3_mmc_enable,
.disable = asic3_mmc_disable,
+ .suspend = asic3_mmc_disable,
+ .resume = asic3_mmc_enable,
.platform_data = &asic3_mmc_data,
.pdata_size = sizeof(asic3_mmc_data),
.num_resources = ARRAY_SIZE(asic3_mmc_resources),
return 0;
}
+static int asic3_leds_suspend(struct platform_device *pdev)
+{
+ const struct mfd_cell *cell = mfd_get_cell(pdev);
+ struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
+
+ while (asic3_gpio_get(&asic->gpio, ASIC3_GPIO(C, cell->id)) != 0)
+ msleep(1);
+
+ asic3_clk_disable(asic, &asic->clocks[clock_ledn[cell->id]]);
+
+ return 0;
+}
+
static struct mfd_cell asic3_cell_leds[ASIC3_NUM_LEDS] = {
[0] = {
.name = "leds-asic3",
.id = 0,
.enable = asic3_leds_enable,
.disable = asic3_leds_disable,
+ .suspend = asic3_leds_suspend,
+ .resume = asic3_leds_enable,
},
[1] = {
.name = "leds-asic3",
.id = 1,
.enable = asic3_leds_enable,
.disable = asic3_leds_disable,
+ .suspend = asic3_leds_suspend,
+ .resume = asic3_leds_enable,
},
[2] = {
.name = "leds-asic3",
.id = 2,
.enable = asic3_leds_enable,
.disable = asic3_leds_disable,
+ .suspend = asic3_leds_suspend,
+ .resume = asic3_leds_enable,
},
};
goto out_unmap;
}
+ asic->gpio.label = "asic3";
asic->gpio.base = pdata->gpio_base;
asic->gpio.ngpio = ASIC3_NUM_GPIOS;
asic->gpio.get = asic3_gpio_get;
#include <linux/slab.h>
#include <linux/i2c.h>
+#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
+ #include <linux/module.h>
#include <linux/mutex.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max8997.h>
max8997->irq_base = pdata->irq_base;
max8997->ono = pdata->ono;
- max8997->wakeup = pdata->wakeup;
mutex_init(&max8997->iolock);
if (ret < 0)
goto err_mfd;
+ /* MAX8997 has a power button input. */
+ device_init_wakeup(max8997->dev, pdata->wakeup);
+
return ret;
err_mfd:
return 0;
}
+static int max8997_suspend(struct device *dev)
+{
+ struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+ struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
+
+ if (device_may_wakeup(dev))
+ irq_set_irq_wake(max8997->irq, 1);
+ return 0;
+}
+
+static int max8997_resume(struct device *dev)
+{
+ struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+ struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
+
+ if (device_may_wakeup(dev))
+ irq_set_irq_wake(max8997->irq, 0);
+ return max8997_irq_resume(max8997);
+}
+
const struct dev_pm_ops max8997_pm = {
+ .suspend = max8997_suspend,
+ .resume = max8997_resume,
.freeze = max8997_freeze,
.restore = max8997_restore,
};
#include <linux/init.h>
#include <linux/mutex.h>
+ #include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#define twl_has_watchdog() false
#endif
-#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\
+#if defined(CONFIG_MFD_TWL4030_AUDIO) || defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) ||\
defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE)
#define twl_has_codec() true
#else
*/
#include <linux/init.h>
+ #include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kthread.h>
#include <linux/i2c/twl.h>
#include <linux/platform_device.h>
+#include <linux/suspend.h>
#include "twl-core.h"
/*----------------------------------------------------------------------*/
static unsigned twl6030_irq_base;
+static int twl_irq;
+static bool twl_irq_wake_enabled;
static struct completion irq_event;
+static atomic_t twl6030_wakeirqs = ATOMIC_INIT(0);
+
+static int twl6030_irq_pm_notifier(struct notifier_block *notifier,
+ unsigned long pm_event, void *unused)
+{
+ int chained_wakeups;
+
+ switch (pm_event) {
+ case PM_SUSPEND_PREPARE:
+ chained_wakeups = atomic_read(&twl6030_wakeirqs);
+
+ if (chained_wakeups && !twl_irq_wake_enabled) {
+ if (enable_irq_wake(twl_irq))
+ pr_err("twl6030 IRQ wake enable failed\n");
+ else
+ twl_irq_wake_enabled = true;
+ } else if (!chained_wakeups && twl_irq_wake_enabled) {
+ disable_irq_wake(twl_irq);
+ twl_irq_wake_enabled = false;
+ }
+
+ disable_irq(twl_irq);
+ break;
+
+ case PM_POST_SUSPEND:
+ enable_irq(twl_irq);
+ break;
+
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block twl6030_irq_pm_notifier_block = {
+ .notifier_call = twl6030_irq_pm_notifier,
+};
/*
* This thread processes interrupts reported by the Primary Interrupt Handler.
#endif
}
+int twl6030_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+ if (on)
+ atomic_inc(&twl6030_wakeirqs);
+ else
+ atomic_dec(&twl6030_wakeirqs);
+
+ return 0;
+}
+
/*----------------------------------------------------------------------*/
static unsigned twl6030_irq_next;
twl6030_irq_chip = dummy_irq_chip;
twl6030_irq_chip.name = "twl6030";
twl6030_irq_chip.irq_set_type = NULL;
+ twl6030_irq_chip.irq_set_wake = twl6030_irq_set_wake;
for (i = irq_base; i < irq_end; i++) {
irq_set_chip_and_handler(i, &twl6030_irq_chip,
handle_simple_irq);
+ irq_set_chip_data(i, (void *)irq_num);
activate_irq(i);
}
/* install an irq handler to demultiplex the TWL6030 interrupt */
init_completion(&irq_event);
+
+ status = request_irq(irq_num, handle_twl6030_pih, 0,
+ "TWL6030-PIH", &irq_event);
+ if (status < 0) {
+ pr_err("twl6030: could not claim irq%d: %d\n", irq_num, status);
+ goto fail_irq;
+ }
+
task = kthread_run(twl6030_irq_thread, (void *)irq_num, "twl6030-irq");
if (IS_ERR(task)) {
pr_err("twl6030: could not create irq %d thread!\n", irq_num);
goto fail_kthread;
}
- status = request_irq(irq_num, handle_twl6030_pih, IRQF_DISABLED,
- "TWL6030-PIH", &irq_event);
- if (status < 0) {
- pr_err("twl6030: could not claim irq%d: %d\n", irq_num, status);
- goto fail_irq;
- }
+ twl_irq = irq_num;
+ register_pm_notifier(&twl6030_irq_pm_notifier_block);
return status;
-fail_irq:
- free_irq(irq_num, &irq_event);
fail_kthread:
+ free_irq(irq_num, &irq_event);
+
+fail_irq:
for (i = irq_base; i < irq_end; i++)
irq_set_chip_and_handler(i, NULL, NULL);
return status;
int twl6030_exit_irq(void)
{
+ unregister_pm_notifier(&twl6030_irq_pm_notifier_block);
if (twl6030_irq_base) {
pr_err("twl6030: can't yet clean up IRQs?\n");
#include <linux/proc_fs.h>
+ #include <linux/export.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include "bonding.h"
seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
seq_printf(seq, "MII Status: %s\n",
(slave->link == BOND_LINK_UP) ? "up" : "down");
- seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
- seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
+ if (slave->speed == -1)
+ seq_printf(seq, "Speed: %s\n", "Unknown");
+ else
+ seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
+
+ if (slave->duplex == -1)
+ seq_printf(seq, "Duplex: %s\n", "Unknown");
+ else
+ seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
+
seq_printf(seq, "Link Failure Count: %u\n",
slave->link_failure_count);
*/
#include <linux/prefetch.h>
+ #include <linux/module.h>
#include "be.h"
#include "be_cmds.h"
#include <asm/div64.h>
struct be_adapter *adapter = netdev_priv(netdev);
struct sockaddr *addr = p;
int status = 0;
+ u8 current_mac[ETH_ALEN];
+ u32 pmac_id = adapter->pmac_id;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
- /* MAC addr configuration will be done in hardware for VFs
- * by their corresponding PFs. Just copy to netdev addr here
- */
- if (!be_physfn(adapter))
- goto netdev_addr;
-
- status = be_cmd_pmac_del(adapter, adapter->if_handle,
- adapter->pmac_id, 0);
+ status = be_cmd_mac_addr_query(adapter, current_mac,
+ MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
if (status)
- return status;
+ goto err;
- status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
+ if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
+ status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
adapter->if_handle, &adapter->pmac_id, 0);
-netdev_addr:
- if (!status)
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ if (status)
+ goto err;
+ be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
+ }
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ return 0;
+err:
+ dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
return status;
}
be_rx_stats_update(rxo, rxcp);
}
+ be_cq_notify(adapter, rx_cq->id, false, work_done);
+
/* Refill the queue */
if (work_done && atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
be_post_rx_frags(rxo, GFP_ATOMIC);
/* All consumed */
if (work_done < budget) {
napi_complete(napi);
- be_cq_notify(adapter, rx_cq->id, true, work_done);
- } else {
- /* More to be consumed; continue with interrupts disabled */
- be_cq_notify(adapter, rx_cq->id, false, work_done);
+ /* Arm CQ */
+ be_cq_notify(adapter, rx_cq->id, true, 0);
}
return work_done;
}
void be_detect_dump_ue(struct be_adapter *adapter)
{
- u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
+ u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
+ u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
u32 i;
- pci_read_config_dword(adapter->pdev,
- PCICFG_UE_STATUS_LOW, &ue_status_lo);
- pci_read_config_dword(adapter->pdev,
- PCICFG_UE_STATUS_HIGH, &ue_status_hi);
- pci_read_config_dword(adapter->pdev,
- PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask);
- pci_read_config_dword(adapter->pdev,
- PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask);
-
- ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
- ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
+ if (lancer_chip(adapter)) {
+ sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
+ if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
+ sliport_err1 = ioread32(adapter->db +
+ SLIPORT_ERROR1_OFFSET);
+ sliport_err2 = ioread32(adapter->db +
+ SLIPORT_ERROR2_OFFSET);
+ }
+ } else {
+ pci_read_config_dword(adapter->pdev,
+ PCICFG_UE_STATUS_LOW, &ue_lo);
+ pci_read_config_dword(adapter->pdev,
+ PCICFG_UE_STATUS_HIGH, &ue_hi);
+ pci_read_config_dword(adapter->pdev,
+ PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
+ pci_read_config_dword(adapter->pdev,
+ PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
+
+ ue_lo = (ue_lo & (~ue_lo_mask));
+ ue_hi = (ue_hi & (~ue_hi_mask));
+ }
- if (ue_status_lo || ue_status_hi) {
+ if (ue_lo || ue_hi ||
+ sliport_status & SLIPORT_STATUS_ERR_MASK) {
adapter->ue_detected = true;
adapter->eeh_err = true;
dev_err(&adapter->pdev->dev, "UE Detected!!\n");
}
- if (ue_status_lo) {
- for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
- if (ue_status_lo & 1)
+ if (ue_lo) {
+ for (i = 0; ue_lo; ue_lo >>= 1, i++) {
+ if (ue_lo & 1)
dev_err(&adapter->pdev->dev,
"UE: %s bit set\n", ue_status_low_desc[i]);
}
}
- if (ue_status_hi) {
- for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) {
- if (ue_status_hi & 1)
+ if (ue_hi) {
+ for (i = 0; ue_hi; ue_hi >>= 1, i++) {
+ if (ue_hi & 1)
dev_err(&adapter->pdev->dev,
"UE: %s bit set\n", ue_status_hi_desc[i]);
}
}
+ if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
+ dev_err(&adapter->pdev->dev,
+ "sliport status 0x%x\n", sliport_status);
+ dev_err(&adapter->pdev->dev,
+ "sliport error1 0x%x\n", sliport_err1);
+ dev_err(&adapter->pdev->dev,
+ "sliport error2 0x%x\n", sliport_err2);
+ }
}
static void be_worker(struct work_struct *work)
struct be_rx_obj *rxo;
int i;
- if (!adapter->ue_detected && !lancer_chip(adapter))
+ if (!adapter->ue_detected)
be_detect_dump_ue(adapter);
/* when interrupts are not yet enabled, just reap any pending
#include <linux/interrupt.h>
#include <linux/slab.h>
+ #include <linux/export.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
mlx4_mtt_cleanup(dev, &eq->mtt);
for (i = 0; i < npages; ++i)
- pci_free_consistent(dev->pdev, PAGE_SIZE,
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
eq->page_list[i].buf,
eq->page_list[i].map);
*/
#include <linux/mlx4/cmd.h>
+ #include <linux/module.h>
#include <linux/cache.h>
#include "fw.h"
#define QUERY_DEV_CAP_MAX_MCG_OFFSET 0x63
#define QUERY_DEV_CAP_RSVD_PD_OFFSET 0x64
#define QUERY_DEV_CAP_MAX_PD_OFFSET 0x65
+#define QUERY_DEV_CAP_RSVD_XRC_OFFSET 0x66
+#define QUERY_DEV_CAP_MAX_XRC_OFFSET 0x67
#define QUERY_DEV_CAP_MAX_COUNTERS_OFFSET 0x68
#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET 0x80
#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET 0x82
dev_cap->reserved_pds = field >> 4;
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
dev_cap->max_pds = 1 << (field & 0x3f);
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
+ dev_cap->reserved_xrcds = field >> 4;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
+ dev_cap->max_xrcds = 1 << (field & 0x1f);
MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
dev_cap->rdmarc_entry_sz = size;
*/
#include <linux/errno.h>
+ #include <linux/export.h>
#include <linux/slab.h>
#include <linux/mlx4/cmd.h>
buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
GFP_KERNEL);
- buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *),
+ buddy->num_free = kcalloc((buddy->max_order + 1), sizeof *buddy->num_free,
GFP_KERNEL);
if (!buddy->bits || !buddy->num_free)
goto err_out;
*/
#include <linux/errno.h>
+ #include <linux/export.h>
#include <linux/io-mapping.h>
#include <asm/page.h>
}
EXPORT_SYMBOL_GPL(mlx4_pd_free);
+int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ *xrcdn = mlx4_bitmap_alloc(&priv->xrcd_bitmap);
+ if (*xrcdn == -1)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_xrcd_alloc);
+
+void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn)
+{
+ mlx4_bitmap_free(&mlx4_priv(dev)->xrcd_bitmap, xrcdn);
+}
+EXPORT_SYMBOL_GPL(mlx4_xrcd_free);
+
int mlx4_init_pd_table(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
}
+int mlx4_init_xrcd_table(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ return mlx4_bitmap_init(&priv->xrcd_bitmap, (1 << 16),
+ (1 << 16) - 1, dev->caps.reserved_xrcds + 1, 0);
+}
+
+void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev)
+{
+ mlx4_bitmap_cleanup(&mlx4_priv(dev)->xrcd_bitmap);
+}
int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
{
#include <linux/errno.h>
#include <linux/if_ether.h>
+ #include <linux/export.h>
#include <linux/mlx4/cmd.h>
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
- if (!err) {
- entry = kmalloc(sizeof *entry, GFP_KERNEL);
- if (!entry) {
- mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
- return -ENOMEM;
- }
- entry->mac = mac;
- err = radix_tree_insert(&info->mac_tree, *qpn, entry);
- if (err) {
- mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
- return err;
- }
- } else
+ if (err)
return err;
+
+ entry = kmalloc(sizeof *entry, GFP_KERNEL);
+ if (!entry) {
+ mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+ return -ENOMEM;
+ }
+
+ entry->mac = mac;
+ err = radix_tree_insert(&info->mac_tree, *qpn, entry);
+ if (err) {
+ kfree(entry);
+ mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
+ return err;
+ }
}
+
mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
+
mutex_lock(&table->mutex);
for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
if (free < 0 && !table->refs[i]) {
return err;
}
+int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port)
+{
+ struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
+ u8 *inbuf, *outbuf;
+ int err, packet_error;
+
+ inmailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(inmailbox))
+ return PTR_ERR(inmailbox);
+
+ outmailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(outmailbox)) {
+ mlx4_free_cmd_mailbox(dev, inmailbox);
+ return PTR_ERR(outmailbox);
+ }
+
+ inbuf = inmailbox->buf;
+ outbuf = outmailbox->buf;
+ memset(inbuf, 0, 256);
+ memset(outbuf, 0, 256);
+ inbuf[0] = 1;
+ inbuf[1] = 1;
+ inbuf[2] = 1;
+ inbuf[3] = 1;
+
+ *(__be16 *) (&inbuf[16]) = MLX4_ATTR_EXTENDED_PORT_INFO;
+ *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
+
+ err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
+ MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
+
+ packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4));
+
+ dev->caps.ext_port_cap[port] = (!err && !packet_error) ?
+ MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO
+ : 0;
+
+ mlx4_free_cmd_mailbox(dev, inmailbox);
+ mlx4_free_cmd_mailbox(dev, outmailbox);
+ return err;
+}
+
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *mailbox;
*/
#include <linux/gfp.h>
+ #include <linux/export.h>
#include <linux/mlx4/cmd.h>
#include <linux/mlx4/qp.h>
* We reserve 2 extra QPs per port for the special QPs. The
* block of special QPs must be aligned to a multiple of 8, so
* round up.
+ *
+ * We also reserve the MSB of the 24-bit QP number to indicate
+ * that a QP is an XRC QP.
*/
dev->caps.sqp_start =
ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);
*/
#include <linux/mlx4/cmd.h>
+ #include <linux/export.h>
#include <linux/gfp.h>
#include "mlx4.h"
struct mlx4_srq_context {
__be32 state_logsize_srqn;
u8 logstride;
- u8 reserved1[3];
- u8 pg_offset;
- u8 reserved2[3];
- u32 reserved3;
+ u8 reserved1;
+ __be16 xrcd;
+ __be32 pg_offset_cqn;
+ u32 reserved2;
u8 log_page_size;
- u8 reserved4[2];
+ u8 reserved3[2];
u8 mtt_base_addr_h;
__be32 mtt_base_addr_l;
__be32 pd;
__be16 limit_watermark;
__be16 wqe_cnt;
- u16 reserved5;
+ u16 reserved4;
__be16 wqe_counter;
- u32 reserved6;
+ u32 reserved5;
__be64 db_rec_addr;
};
MLX4_CMD_TIME_CLASS_A);
}
-int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
- u64 db_rec, struct mlx4_srq *srq)
+int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd,
+ struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq)
{
struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
struct mlx4_cmd_mailbox *mailbox;
srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
srq->srqn);
srq_context->logstride = srq->wqe_shift - 4;
+ srq_context->xrcd = cpu_to_be16(xrcd);
+ srq_context->pg_offset_cqn = cpu_to_be32(cqn & 0xffffff);
srq_context->log_page_size = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
mtt_addr = mlx4_mtt_addr(dev, mtt);
#include <linux/list.h>
#include <linux/acpi.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
struct wmi_block *wblock, *next;
/* Delete devices for all the GUIDs */
- list_for_each_entry_safe(wblock, next, &wmi_block_list, list)
+ list_for_each_entry_safe(wblock, next, &wmi_block_list, list) {
+ list_del(&wblock->list);
if (wblock->dev.class)
device_unregister(&wblock->dev);
+ else
+ kfree(wblock);
+ }
}
static bool guid_already_parsed(const char *guid_string)
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/88pm860x.h>
+ #include <linux/module.h>
struct pm8607_regulator_info {
struct regulator_desc desc;
if (info->desc.id == res->start)
break;
}
- if ((i < 0) || (i > PM8607_ID_RG_MAX)) {
+ if (i == ARRAY_SIZE(pm8607_regulator_info)) {
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
(unsigned long long)res->start);
return -EINVAL;
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
+ #include <linux/module.h>
#define CREATE_TRACE_POINTS
#include <trace/events/regulator.h>
ret = _regulator_enable(rdev);
mutex_unlock(&rdev->mutex);
- if (ret != 0)
+ if (ret != 0 && rdev->supply)
regulator_disable(rdev->supply);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_get_init_drvdata);
+#ifdef CONFIG_DEBUG_FS
+static ssize_t supply_map_read_file(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ ssize_t len, ret = 0;
+ struct regulator_map *map;
+
+ if (!buf)
+ return -ENOMEM;
+
+ list_for_each_entry(map, ®ulator_map_list, list) {
+ len = snprintf(buf + ret, PAGE_SIZE - ret,
+ "%s -> %s.%s\n",
+ rdev_get_name(map->regulator), map->dev_name,
+ map->supply);
+ if (len >= 0)
+ ret += len;
+ if (ret > PAGE_SIZE) {
+ ret = PAGE_SIZE;
+ break;
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+ kfree(buf);
+
+ return ret;
+}
+
+static const struct file_operations supply_map_fops = {
+ .read = supply_map_read_file,
+ .llseek = default_llseek,
+};
+#endif
+
static int __init regulator_init(void)
{
int ret;
pr_warn("regulator: Failed to create debugfs directory\n");
debugfs_root = NULL;
}
+
+ if (IS_ERR(debugfs_create_file("supply_map", 0444, debugfs_root,
+ NULL, &supply_map_fops)))
+ pr_warn("regulator: Failed to create supplies debugfs\n");
#endif
regulator_dummy_init();
#include <linux/err.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
-#include <linux/mfd/db8500-prcmu.h>
+#include <linux/mfd/dbx500-prcmu.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/db8500-prcmu.h>
+ #include <linux/module.h>
/*
* power state reference count
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
+ #include <linux/module.h>
#include "mc13xxx.h"
#define MC13783_REG_SWITCHERS5 29
{
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
- struct mc13783_regulator_platform_data *pdata =
+ struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
- struct mc13783_regulator_init_data *init_data;
+ struct mc13xxx_regulator_init_data *init_data;
int i, ret;
dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
- struct mc13783_regulator_platform_data *pdata =
+ struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
int i;
*/
#include <linux/kernel.h>
+ #include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
1 << ri->enable_bit[1]);
}
+static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev)
+{
+ struct device *parent = pdev->dev.parent;
+ struct regulator_init_data *p = pdev->dev.platform_data;
+ struct tps6586x_settings *setting = p->driver_data;
+ uint8_t reg;
+
+ if (setting == NULL)
+ return 0;
+
+ if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET))
+ return 0;
+
+ /* only SM0 and SM1 can have the slew rate settings */
+ switch (pdev->id) {
+ case TPS6586X_ID_SM_0:
+ reg = TPS6586X_SM0SL;
+ break;
+ case TPS6586X_ID_SM_1:
+ reg = TPS6586X_SM1SL;
+ break;
+ default:
+ dev_warn(&pdev->dev, "Only SM0/SM1 can set slew rate\n");
+ return -EINVAL;
+ }
+
+ return tps6586x_write(parent, reg,
+ setting->slew_rate & TPS6586X_SLEW_RATE_MASK);
+}
+
static inline struct tps6586x_regulator *find_regulator_info(int id)
{
struct tps6586x_regulator *ri;
platform_set_drvdata(pdev, rdev);
- return 0;
+ return tps6586x_regulator_set_slew_rate(pdev);
}
static int __devexit tps6586x_regulator_remove(struct platform_device *pdev)
#define KMSG_COMPONENT "vmur"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-#include <linux/kernel_stat.h>
#include <linux/cdev.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/cio.h>
.set_online = ur_set_online,
.set_offline = ur_set_offline,
.freeze = ur_pm_suspend,
+ .int_class = IOINT_VMR,
};
static DEFINE_MUTEX(vmur_mutex);
{
struct urdev *urd;
- kstat_cpu(smp_processor_id()).irqs[IOINT_VMR]++;
TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n",
intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
irb->scsw.cmd.count);
*/
#include <linux/seq_file.h>
#include <linux/debugfs.h>
+ #include <linux/uaccess.h>
+ #include <linux/export.h>
#include <asm/debug.h>
#include "qdio_debug.h"
#include "qdio.h"
if (!q)
return 0;
- seq_printf(m, "DSCI: %d nr_used: %d\n",
- *(u32 *)q->irq_ptr->dsci, atomic_read(&q->nr_buf_used));
- seq_printf(m, "ftc: %d last_move: %d\n",
+ seq_printf(m, "Timestamp: %Lx Last AI: %Lx\n",
+ q->timestamp, last_ai_time);
+ seq_printf(m, "nr_used: %d ftc: %d last_move: %d\n",
+ atomic_read(&q->nr_buf_used),
q->first_to_check, q->last_move);
if (q->is_input_q) {
seq_printf(m, "polling: %d ack start: %d ack count: %d\n",
q->u.in.polling, q->u.in.ack_start,
q->u.in.ack_count);
- seq_printf(m, "IRQs disabled: %u\n",
+ seq_printf(m, "DSCI: %d IRQs disabled: %u\n",
+ *(u32 *)q->irq_ptr->dsci,
test_bit(QDIO_QUEUE_IRQS_DISABLED,
&q->u.in.queue_irq_state));
}
#include <linux/virtio_console.h>
#include <linux/interrupt.h>
#include <linux/virtio_ring.h>
+ #include <linux/export.h>
#include <linux/pfn.h>
#include <asm/io.h>
#include <asm/kvm_para.h>
* The pointer to our (page) of device descriptions.
*/
static void *kvm_devices;
-struct work_struct hotplug_work;
+static struct work_struct hotplug_work;
struct kvm_device {
struct virtio_device vdev;
*/
static int match_desc(struct device *dev, void *data)
{
- if ((ulong)to_kvmdev(dev_to_virtio(dev))->desc == (ulong)data)
- return 1;
+ struct virtio_device *vdev = dev_to_virtio(dev);
+ struct kvm_device *kdev = to_kvmdev(vdev);
- return 0;
+ return kdev->desc == data;
}
/*
*/
#include <linux/slab.h>
+ #include <linux/module.h>
#include <scsi/scsi_dh.h>
#include "../scsi_priv.h"
spin_lock_irqsave(q->queue_lock, flags);
sdev = q->queuedata;
- if (sdev && sdev->scsi_dh_data)
+ if (!sdev) {
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ err = SCSI_DH_NOSYS;
+ if (fn)
+ fn(data, err);
+ return err;
+ }
+
+ if (sdev->scsi_dh_data)
scsi_dh = sdev->scsi_dh_data->scsi_dh;
dev = get_device(&sdev->sdev_gendev);
if (!scsi_dh || !dev ||
*/
#include <linux/slab.h>
#include <linux/delay.h>
+ #include <linux/module.h>
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_dh.h>
int len, k, off, valid_states = 0;
unsigned char *ucp;
unsigned err;
- unsigned long expiry, interval = 1;
+ unsigned long expiry, interval = 1000;
expiry = round_jiffies_up(jiffies + ALUA_FAILOVER_TIMEOUT);
retry:
spin_lock_irqsave(sdev->request_queue->queue_lock, flags);
sdev->scsi_dh_data = scsi_dh_data;
spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);
+ sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME);
return 0;
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/err.h>
+ #include <linux/export.h>
#include <scsi/fc/fc_fc2.h>
struct fc_frame_header *fh = fc_frame_header_get(fp);
int error;
u32 f_ctl;
+ u8 fh_type = fh->fh_type;
ep = fc_seq_exch(sp);
WARN_ON((ep->esb_stat & ESB_ST_SEQ_INIT) != ESB_ST_SEQ_INIT);
*/
error = lport->tt.frame_send(lport, fp);
- if (fh->fh_type == FC_TYPE_BLS)
+ if (fh_type == FC_TYPE_BLS)
return error;
/*
goto restart;
}
}
+ pool->next_index = 0;
+ pool->left = FC_XID_UNKNOWN;
+ pool->right = FC_XID_UNKNOWN;
spin_unlock_bh(&pool->lock);
}
goto free_mempool;
for_each_possible_cpu(cpu) {
pool = per_cpu_ptr(mp->pool, cpu);
+ pool->next_index = 0;
pool->left = FC_XID_UNKNOWN;
pool->right = FC_XID_UNKNOWN;
spin_lock_init(&pool->lock);
#include <linux/timer.h>
#include <linux/delay.h>
+ #include <linux/module.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
FCH_EVT_LIPRESET, 0);
fc_vports_linkchange(lport);
fc_lport_reset_locked(lport);
- if (lport->link_up) {
- /*
- * Wait upto resource allocation time out before
- * doing re-login since incomplete FIP exchanged
- * from last session may collide with exchanges
- * in new session.
- */
- msleep(lport->r_a_tov);
+ if (lport->link_up)
fc_lport_enter_flogi(lport);
- }
}
/**
void *lp_arg)
{
struct fc_lport *lport = lp_arg;
+ struct fc_frame_header *fh;
struct fc_els_flogi *flp;
u32 did;
u16 csp_flags;
goto err;
}
+ fh = fc_frame_header_get(fp);
did = fc_frame_did(fp);
- if (fc_frame_payload_op(fp) == ELS_LS_ACC && did) {
- flp = fc_frame_payload_get(fp, sizeof(*flp));
- if (flp) {
- mfs = ntohs(flp->fl_csp.sp_bb_data) &
- FC_SP_BB_DATA_MASK;
- if (mfs >= FC_SP_MIN_MAX_PAYLOAD &&
- mfs < lport->mfs)
- lport->mfs = mfs;
- csp_flags = ntohs(flp->fl_csp.sp_features);
- r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov);
- e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov);
- if (csp_flags & FC_SP_FT_EDTR)
- e_d_tov /= 1000000;
-
- lport->npiv_enabled = !!(csp_flags & FC_SP_FT_NPIV_ACC);
-
- if ((csp_flags & FC_SP_FT_FPORT) == 0) {
- if (e_d_tov > lport->e_d_tov)
- lport->e_d_tov = e_d_tov;
- lport->r_a_tov = 2 * e_d_tov;
- fc_lport_set_port_id(lport, did, fp);
- printk(KERN_INFO "host%d: libfc: "
- "Port (%6.6x) entered "
- "point-to-point mode\n",
- lport->host->host_no, did);
- fc_lport_ptp_setup(lport, fc_frame_sid(fp),
- get_unaligned_be64(
- &flp->fl_wwpn),
- get_unaligned_be64(
- &flp->fl_wwnn));
- } else {
- lport->e_d_tov = e_d_tov;
- lport->r_a_tov = r_a_tov;
- fc_host_fabric_name(lport->host) =
- get_unaligned_be64(&flp->fl_wwnn);
- fc_lport_set_port_id(lport, did, fp);
- fc_lport_enter_dns(lport);
- }
- }
- } else {
- FC_LPORT_DBG(lport, "FLOGI RJT or bad response\n");
+ if (fh->fh_r_ctl != FC_RCTL_ELS_REP || did == 0 ||
+ fc_frame_payload_op(fp) != ELS_LS_ACC) {
+ FC_LPORT_DBG(lport, "FLOGI not accepted or bad response\n");
fc_lport_error(lport, fp);
+ goto err;
+ }
+
+ flp = fc_frame_payload_get(fp, sizeof(*flp));
+ if (!flp) {
+ FC_LPORT_DBG(lport, "FLOGI bad response\n");
+ fc_lport_error(lport, fp);
+ goto err;
+ }
+
+ mfs = ntohs(flp->fl_csp.sp_bb_data) &
+ FC_SP_BB_DATA_MASK;
+ if (mfs >= FC_SP_MIN_MAX_PAYLOAD &&
+ mfs < lport->mfs)
+ lport->mfs = mfs;
+ csp_flags = ntohs(flp->fl_csp.sp_features);
+ r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov);
+ e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov);
+ if (csp_flags & FC_SP_FT_EDTR)
+ e_d_tov /= 1000000;
+
+ lport->npiv_enabled = !!(csp_flags & FC_SP_FT_NPIV_ACC);
+
+ if ((csp_flags & FC_SP_FT_FPORT) == 0) {
+ if (e_d_tov > lport->e_d_tov)
+ lport->e_d_tov = e_d_tov;
+ lport->r_a_tov = 2 * e_d_tov;
+ fc_lport_set_port_id(lport, did, fp);
+ printk(KERN_INFO "host%d: libfc: "
+ "Port (%6.6x) entered "
+ "point-to-point mode\n",
+ lport->host->host_no, did);
+ fc_lport_ptp_setup(lport, fc_frame_sid(fp),
+ get_unaligned_be64(
+ &flp->fl_wwpn),
+ get_unaligned_be64(
+ &flp->fl_wwnn));
+ } else {
+ lport->e_d_tov = e_d_tov;
+ lport->r_a_tov = r_a_tov;
+ fc_host_fabric_name(lport->host) =
+ get_unaligned_be64(&flp->fl_wwnn);
+ fc_lport_set_port_id(lport, did, fp);
+ fc_lport_enter_dns(lport);
}
out:
#include <linux/blkdev.h>
#include <linux/completion.h>
#include <linux/kernel.h>
+ #include <linux/export.h>
#include <linux/mempool.h>
#include <linux/slab.h>
#include <linux/init.h>
void scsi_free_queue(struct request_queue *q)
{
+ unsigned long flags;
+
+ WARN_ON(q->queuedata);
+
+ /* cause scsi_request_fn() to kill all non-finished requests */
+ spin_lock_irqsave(q->queue_lock, flags);
+ q->request_fn(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
blk_cleanup_queue(q);
}
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/freezer.h>
+ #include <linux/export.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <linux/kthread.h>
#include <linux/crypto.h>
#include <linux/completion.h>
+ #include <linux/module.h>
#include <asm/unaligned.h>
#include <scsi/scsi_device.h>
#include <scsi/iscsi_proto.h>
*/
if (!cmd->immediate_data) {
cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
- if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+ if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+ return 0;
+ else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
return iscsit_add_reject_from_cmd(
ISCSI_REASON_PROTOCOL_ERROR,
1, 0, buf, cmd);
int cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
if (cmdsn_ret == CMDSN_HIGHER_THAN_EXP)
out_of_order_cmdsn = 1;
- else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP) {
+ else if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
return 0;
- } else { /* (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER) */
+ else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
return iscsit_add_reject_from_cmd(
ISCSI_REASON_PROTOCOL_ERROR,
1, 0, buf, cmd);
- }
}
iscsit_ack_from_expstatsn(conn, hdr->exp_statsn);
- if (out_of_order_cmdsn)
+ if (out_of_order_cmdsn || !(hdr->opcode & ISCSI_OP_IMMEDIATE))
return 0;
/*
* Found the referenced task, send to transport for processing.
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/configfs.h>
+ #include <linux/export.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
*
* See spc4r17 section 6.27
*/
-int core_emulate_report_target_port_groups(struct se_cmd *cmd)
+int target_emulate_report_target_port_groups(struct se_task *task)
{
+ struct se_cmd *cmd = task->task_se_cmd;
struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev;
struct se_port *port;
struct t10_alua_tg_pt_gp *tg_pt_gp;
transport_kunmap_first_data_page(cmd);
+ task->task_scsi_status = GOOD;
+ transport_complete_task(task, 1);
return 0;
}
*
* See spc4r17 section 6.35
*/
-int core_emulate_set_target_port_groups(struct se_cmd *cmd)
+int target_emulate_set_target_port_groups(struct se_task *task)
{
+ struct se_cmd *cmd = task->task_se_cmd;
struct se_device *dev = cmd->se_dev;
struct se_subsystem_dev *su_dev = dev->se_sub_dev;
struct se_port *port, *l_port = cmd->se_lun->lun_sep;
out:
transport_kunmap_first_data_page(cmd);
-
+ task->task_scsi_status = GOOD;
+ transport_complete_task(task, 1);
return 0;
}
#include <linux/spinlock.h>
#include <linux/kthread.h>
#include <linux/in.h>
+ #include <linux/export.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <scsi/scsi.h>
lun->lun_se_dev = NULL;
}
-int transport_core_report_lun_response(struct se_cmd *se_cmd)
+int target_report_luns(struct se_task *se_task)
{
+ struct se_cmd *se_cmd = se_task->task_se_cmd;
struct se_dev_entry *deve;
struct se_lun *se_lun;
struct se_session *se_sess = se_cmd->se_sess;
- struct se_task *se_task;
unsigned char *buf;
u32 cdb_offset = 0, lun_count = 0, offset = 8, i;
- list_for_each_entry(se_task, &se_cmd->t_task_list, t_list)
- break;
-
- if (!se_task) {
- pr_err("Unable to locate struct se_task for struct se_cmd\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
- }
-
buf = transport_kmap_first_data_page(se_cmd);
/*
buf[2] = ((lun_count >> 8) & 0xff);
buf[3] = (lun_count & 0xff);
+ se_task->task_scsi_status = GOOD;
+ transport_complete_task(se_task, 1);
return PYX_TRANSPORT_SENT_TO_TRANSPORT;
}
#include <linux/genhd.h>
#include <linux/cdrom.h>
#include <linux/file.h>
+ #include <linux/module.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_cmnd.h>
req = blk_make_request(pdv->pdv_sd->request_queue, hbio,
GFP_KERNEL);
- if (!req) {
+ if (IS_ERR(req)) {
pr_err("pSCSI: blk_make_request() failed\n");
goto fail;
}
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/list.h>
+ #include <linux/export.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
/*
* Allow the received TMR to return with FUNCTION_COMPLETE.
*/
- if (tmr && (tmr_p == tmr))
+ if (tmr_p == tmr)
continue;
cmd = tmr_p->task_cmd;
}
spin_unlock(&cmd->t_state_lock);
- list_move_tail(&tmr->tmr_list, &drain_tmr_list);
+ list_move_tail(&tmr_p->tmr_list, &drain_tmr_list);
}
spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
- while (!list_empty(&drain_tmr_list)) {
- tmr = list_entry(drain_tmr_list.next, struct se_tmr_req, tmr_list);
- list_del(&tmr->tmr_list);
+ list_for_each_entry_safe(tmr_p, tmr_pp, &drain_tmr_list, tmr_list) {
+ list_del_init(&tmr_p->tmr_list);
cmd = tmr_p->task_cmd;
pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x,"
" Response: 0x%02x, t_state: %d\n",
- (preempt_and_abort_list) ? "Preempt" : "", tmr,
- tmr->function, tmr->response, cmd->t_state);
+ (preempt_and_abort_list) ? "Preempt" : "", tmr_p,
+ tmr_p->function, tmr_p->response, cmd->t_state);
transport_cmd_finish_abort(cmd, 1);
}
*/
if (prout_cmd == cmd)
continue;
- /*
- * Skip direct processing of TRANSPORT_FREE_CMD_INTR for
- * HW target mode fabrics.
- */
- spin_lock(&cmd->t_state_lock);
- if (cmd->t_state == TRANSPORT_FREE_CMD_INTR) {
- spin_unlock(&cmd->t_state_lock);
- continue;
- }
- spin_unlock(&cmd->t_state_lock);
atomic_set(&cmd->t_transport_queue_active, 0);
atomic_dec(&qobj->queue_cnt);
#include <linux/kthread.h>
#include <linux/in.h>
#include <linux/cdrom.h>
+ #include <linux/module.h>
#include <asm/unaligned.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <target/target_core_configfs.h>
#include "target_core_alua.h"
+#include "target_core_cdb.h"
#include "target_core_hba.h"
#include "target_core_pr.h"
#include "target_core_ua.h"
}
INIT_LIST_HEAD(&se_sess->sess_list);
INIT_LIST_HEAD(&se_sess->sess_acl_list);
+ INIT_LIST_HEAD(&se_sess->sess_cmd_list);
+ INIT_LIST_HEAD(&se_sess->sess_wait_list);
+ spin_lock_init(&se_sess->sess_cmd_lock);
return se_sess;
}
* Some fabric modules like tcm_loop can release
* their internally allocated I/O reference now and
* struct se_cmd now.
+ *
+ * Fabric modules are expected to return '1' here if the
+ * se_cmd being passed is released at this point,
+ * or zero if not being released.
*/
if (cmd->se_tfo->check_stop_free != NULL) {
spin_unlock_irqrestore(
&cmd->t_state_lock, flags);
- cmd->se_tfo->check_stop_free(cmd);
- return 1;
+ return cmd->se_tfo->check_stop_free(cmd);
}
}
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
complete(&task->task_stop_comp);
return;
}
+
+ if (!success)
+ cmd->t_tasks_failed = 1;
+
/*
* Decrement the outstanding t_task_cdbs_left count. The last
* struct se_task from struct se_cmd will complete itself into the
return;
}
- if (!success || cmd->t_tasks_failed) {
+ if (cmd->t_tasks_failed) {
if (!task->task_error_status) {
task->task_error_status =
PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
}
/*
- * Handle QUEUE_FULL / -EAGAIN status
+ * Handle QUEUE_FULL / -EAGAIN and -ENOMEM status
*/
static void target_qf_do_work(struct work_struct *work)
INIT_LIST_HEAD(&cmd->se_ordered_node);
INIT_LIST_HEAD(&cmd->se_qf_node);
INIT_LIST_HEAD(&cmd->se_queue_node);
-
+ INIT_LIST_HEAD(&cmd->se_cmd_list);
INIT_LIST_HEAD(&cmd->t_task_list);
init_completion(&cmd->transport_lun_fe_stop_comp);
init_completion(&cmd->transport_lun_stop_comp);
init_completion(&cmd->t_transport_stop_comp);
+ init_completion(&cmd->cmd_wait_comp);
spin_lock_init(&cmd->t_state_lock);
atomic_set(&cmd->transport_dev_active, 1);
* and call transport_generic_request_failure() if necessary..
*/
ret = transport_generic_new_cmd(cmd);
- if (ret == -EAGAIN)
- return 0;
- else if (ret < 0) {
+ if (ret < 0) {
cmd->transport_error_status = ret;
transport_generic_request_failure(cmd, 0,
(cmd->data_direction != DMA_TO_DEVICE));
}
EXPORT_SYMBOL(transport_generic_handle_tmr);
-void transport_generic_free_cmd_intr(
- struct se_cmd *cmd)
-{
- transport_add_cmd_to_queue(cmd, TRANSPORT_FREE_CMD_INTR, false);
-}
-EXPORT_SYMBOL(transport_generic_free_cmd_intr);
-
/*
* If the task is active, request it to be stopped and sleep until it
* has completed.
ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
ret = cmd->se_tfo->queue_status(cmd);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
goto check_stop;
case PYX_TRANSPORT_USE_SENSE_REASON:
else {
ret = transport_send_check_condition_and_sense(cmd,
cmd->scsi_sense_reason, 0);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
}
atomic_set(&cmd->t_transport_sent, 1);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- /*
- * The struct se_cmd->transport_emulate_cdb() function pointer is used
- * to grab REPORT_LUNS and other CDBs we want to handle before they hit the
- * struct se_subsystem_api->do_task() caller below.
- */
- if (cmd->transport_emulate_cdb) {
- error = cmd->transport_emulate_cdb(cmd);
- if (error != 0) {
- cmd->transport_error_status = error;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- task->task_flags &= ~TF_ACTIVE;
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- atomic_set(&cmd->t_transport_sent, 0);
- transport_stop_tasks_for_cmd(cmd);
- atomic_inc(&dev->depth_left);
- transport_generic_request_failure(cmd, 0, 1);
- goto check_depth;
- }
- /*
- * Handle the successful completion for transport_emulate_cdb()
- * for synchronous operation, following SCF_EMULATE_CDB_ASYNC
- * Otherwise the caller is expected to complete the task with
- * proper status.
- */
- if (!(cmd->se_cmd_flags & SCF_EMULATE_CDB_ASYNC)) {
- cmd->scsi_status = SAM_STAT_GOOD;
- task->task_scsi_status = GOOD;
- transport_complete_task(task, 1);
- }
- } else {
- /*
- * Currently for all virtual TCM plugins including IBLOCK, FILEIO and
- * RAMDISK we use the internal transport_emulate_control_cdb() logic
- * with struct se_subsystem_api callers for the primary SPC-3 TYPE_DISK
- * LUN emulation code.
- *
- * For TCM/pSCSI and all other SCF_SCSI_DATA_SG_IO_CDB I/O tasks we
- * call ->do_task() directly and let the underlying TCM subsystem plugin
- * code handle the CDB emulation.
- */
- if ((dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) &&
- (!(task->task_se_cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)))
- error = transport_emulate_control_cdb(task);
- else
- error = dev->transport->do_task(task);
- if (error != 0) {
- cmd->transport_error_status = error;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- task->task_flags &= ~TF_ACTIVE;
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- atomic_set(&cmd->t_transport_sent, 0);
- transport_stop_tasks_for_cmd(cmd);
- atomic_inc(&dev->depth_left);
- transport_generic_request_failure(cmd, 0, 1);
- }
+ if (cmd->execute_task)
+ error = cmd->execute_task(task);
+ else
+ error = dev->transport->do_task(task);
+ if (error != 0) {
+ cmd->transport_error_status = error;
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ task->task_flags &= ~TF_ACTIVE;
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ atomic_set(&cmd->t_transport_sent, 0);
+ transport_stop_tasks_for_cmd(cmd);
+ atomic_inc(&dev->depth_left);
+ transport_generic_request_failure(cmd, 0, 1);
}
goto check_depth;
*/
}
+ /*
+ * If we operate in passthrough mode we skip most CDB emulation and
+ * instead hand the commands down to the physical SCSI device.
+ */
+ passthrough =
+ (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV);
+
switch (cdb[0]) {
case READ_6:
sectors = transport_get_sectors_6(cdb, cmd, §or_ret);
cmd->t_task_lba = transport_lba_32(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
- if (dev->transport->transport_type ==
- TRANSPORT_PLUGIN_PHBA_PDEV)
+ /*
+ * Do now allow BIDI commands for passthrough mode.
+ */
+ if (passthrough)
goto out_unsupported_cdb;
+
/*
* Setup BIDI XOR callback to be run after I/O completion.
*/
break;
case VARIABLE_LENGTH_CMD:
service_action = get_unaligned_be16(&cdb[8]);
- /*
- * Determine if this is TCM/PSCSI device and we should disable
- * internal emulation for this CDB.
- */
- passthrough = (dev->transport->transport_type ==
- TRANSPORT_PLUGIN_PHBA_PDEV);
-
switch (service_action) {
case XDWRITEREAD_32:
sectors = transport_get_sectors_32(cdb, cmd, §or_ret);
cmd->t_task_lba = transport_lba_64_ext(cdb);
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
+ /*
+ * Do now allow BIDI commands for passthrough mode.
+ */
if (passthrough)
goto out_unsupported_cdb;
+
/*
* Setup BIDI XOR callback to be run during after I/O
* completion.
if (target_check_write_same_discard(&cdb[10], dev) < 0)
goto out_invalid_cdb_field;
-
+ if (!passthrough)
+ cmd->execute_task = target_emulate_write_same;
break;
default:
pr_err("VARIABLE_LENGTH_CMD service action"
/*
* Check for emulated MI_REPORT_TARGET_PGS.
*/
- if (cdb[1] == MI_REPORT_TARGET_PGS) {
- cmd->transport_emulate_cdb =
- (su_dev->t10_alua.alua_type ==
- SPC3_ALUA_EMULATED) ?
- core_emulate_report_target_port_groups :
- NULL;
+ if (cdb[1] == MI_REPORT_TARGET_PGS &&
+ su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) {
+ cmd->execute_task =
+ target_emulate_report_target_port_groups;
}
size = (cdb[6] << 24) | (cdb[7] << 16) |
(cdb[8] << 8) | cdb[9];
case MODE_SENSE:
size = cdb[4];
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_modesense;
break;
case MODE_SENSE_10:
+ size = (cdb[7] << 8) + cdb[8];
+ cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_modesense;
+ break;
case GPCMD_READ_BUFFER_CAPACITY:
case GPCMD_SEND_OPC:
case LOG_SELECT:
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
break;
case PERSISTENT_RESERVE_IN:
+ if (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS)
+ cmd->execute_task = target_scsi3_emulate_pr_in;
+ size = (cdb[7] << 8) + cdb[8];
+ cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ break;
case PERSISTENT_RESERVE_OUT:
- cmd->transport_emulate_cdb =
- (su_dev->t10_pr.res_type ==
- SPC3_PERSISTENT_RESERVATIONS) ?
- core_scsi3_emulate_pr : NULL;
+ if (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS)
+ cmd->execute_task = target_scsi3_emulate_pr_out;
size = (cdb[7] << 8) + cdb[8];
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
break;
*
* Check for emulated MO_SET_TARGET_PGS.
*/
- if (cdb[1] == MO_SET_TARGET_PGS) {
- cmd->transport_emulate_cdb =
- (su_dev->t10_alua.alua_type ==
- SPC3_ALUA_EMULATED) ?
- core_emulate_set_target_port_groups :
- NULL;
+ if (cdb[1] == MO_SET_TARGET_PGS &&
+ su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) {
+ cmd->execute_task =
+ target_emulate_set_target_port_groups;
}
size = (cdb[6] << 24) | (cdb[7] << 16) |
if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
cmd->sam_task_attr = MSG_HEAD_TAG;
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_inquiry;
break;
case READ_BUFFER:
size = (cdb[6] << 16) + (cdb[7] << 8) + cdb[8];
case READ_CAPACITY:
size = READ_CAP_LEN;
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_readcapacity;
break;
case READ_MEDIA_SERIAL_NUMBER:
case SECURITY_PROTOCOL_IN:
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
break;
case SERVICE_ACTION_IN:
+ switch (cmd->t_task_cdb[1] & 0x1f) {
+ case SAI_READ_CAPACITY_16:
+ if (!passthrough)
+ cmd->execute_task =
+ target_emulate_readcapacity_16;
+ break;
+ default:
+ if (passthrough)
+ break;
+
+ pr_err("Unsupported SA: 0x%02x\n",
+ cmd->t_task_cdb[1] & 0x1f);
+ goto out_unsupported_cdb;
+ }
+ /*FALLTHROUGH*/
case ACCESS_CONTROL_IN:
case ACCESS_CONTROL_OUT:
case EXTENDED_COPY:
case REQUEST_SENSE:
size = cdb[4];
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_request_sense;
break;
case READ_ELEMENT_STATUS:
size = 65536 * cdb[7] + 256 * cdb[8] + cdb[9];
* is running in SPC_PASSTHROUGH, and wants reservations
* emulation disabled.
*/
- cmd->transport_emulate_cdb =
- (su_dev->t10_pr.res_type !=
- SPC_PASSTHROUGH) ?
- core_scsi2_emulate_crh : NULL;
+ if (su_dev->t10_pr.res_type != SPC_PASSTHROUGH)
+ cmd->execute_task = target_scsi2_reservation_reserve;
cmd->se_cmd_flags |= SCF_SCSI_NON_DATA_CDB;
break;
case RELEASE:
else
size = cmd->data_length;
- cmd->transport_emulate_cdb =
- (su_dev->t10_pr.res_type !=
- SPC_PASSTHROUGH) ?
- core_scsi2_emulate_crh : NULL;
+ if (su_dev->t10_pr.res_type != SPC_PASSTHROUGH)
+ cmd->execute_task = target_scsi2_reservation_release;
cmd->se_cmd_flags |= SCF_SCSI_NON_DATA_CDB;
break;
case SYNCHRONIZE_CACHE:
size = transport_get_size(sectors, cdb, cmd);
cmd->se_cmd_flags |= SCF_SCSI_NON_DATA_CDB;
- /*
- * For TCM/pSCSI passthrough, skip cmd->transport_emulate_cdb()
- */
- if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
+ if (passthrough)
break;
- /*
- * Set SCF_EMULATE_CDB_ASYNC to ensure asynchronous operation
- * for SYNCHRONIZE_CACHE* Immed=1 case in __transport_execute_tasks()
- */
- cmd->se_cmd_flags |= SCF_EMULATE_CDB_ASYNC;
+
/*
* Check to ensure that LBA + Range does not exceed past end of
* device for IBLOCK and FILEIO ->do_sync_cache() backend calls
if (transport_cmd_get_valid_sectors(cmd) < 0)
goto out_invalid_cdb_field;
}
+ cmd->execute_task = target_emulate_synchronize_cache;
break;
case UNMAP:
size = get_unaligned_be16(&cdb[7]);
cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_unmap;
break;
case WRITE_SAME_16:
sectors = transport_get_sectors_16(cdb, cmd, §or_ret);
if (target_check_write_same_discard(&cdb[1], dev) < 0)
goto out_invalid_cdb_field;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_write_same;
break;
case WRITE_SAME:
sectors = transport_get_sectors_10(cdb, cmd, §or_ret);
*/
if (target_check_write_same_discard(&cdb[1], dev) < 0)
goto out_invalid_cdb_field;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_write_same;
break;
case ALLOW_MEDIUM_REMOVAL:
- case GPCMD_CLOSE_TRACK:
case ERASE:
- case INITIALIZE_ELEMENT_STATUS:
- case GPCMD_LOAD_UNLOAD:
case REZERO_UNIT:
case SEEK_10:
- case GPCMD_SET_SPEED:
case SPACE:
case START_STOP:
case TEST_UNIT_READY:
case VERIFY:
case WRITE_FILEMARKS:
+ cmd->se_cmd_flags |= SCF_SCSI_NON_DATA_CDB;
+ if (!passthrough)
+ cmd->execute_task = target_emulate_noop;
+ break;
+ case GPCMD_CLOSE_TRACK:
+ case INITIALIZE_ELEMENT_STATUS:
+ case GPCMD_LOAD_UNLOAD:
+ case GPCMD_SET_SPEED:
case MOVE_MEDIUM:
cmd->se_cmd_flags |= SCF_SCSI_NON_DATA_CDB;
break;
case REPORT_LUNS:
- cmd->transport_emulate_cdb =
- transport_core_report_lun_response;
+ cmd->execute_task = target_report_luns;
size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
/*
* Do implict HEAD_OF_QUEUE processing for REPORT_LUNS
cmd->data_length = size;
}
+ /* reject any command that we don't have a handler for */
+ if (!(passthrough || cmd->execute_task ||
+ (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)))
+ goto out_unsupported_cdb;
+
/* Let's limit control cdbs to a page, for simplicity's sake. */
if ((cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB) &&
size > PAGE_SIZE)
if (cmd->scsi_status) {
ret = transport_send_check_condition_and_sense(
cmd, reason, 1);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
transport_lun_remove_cmd(cmd);
spin_unlock(&cmd->se_lun->lun_sep_lock);
ret = cmd->se_tfo->queue_data_in(cmd);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
break;
case DMA_TO_DEVICE:
}
spin_unlock(&cmd->se_lun->lun_sep_lock);
ret = cmd->se_tfo->queue_data_in(cmd);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
break;
}
/* Fall through for DMA_TO_DEVICE */
case DMA_NONE:
ret = cmd->se_tfo->queue_status(cmd);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
break;
default:
static void transport_write_pending_qf(struct se_cmd *cmd)
{
- if (cmd->se_tfo->write_pending(cmd) == -EAGAIN) {
+ int ret;
+
+ ret = cmd->se_tfo->write_pending(cmd);
+ if (ret == -EAGAIN || ret == -ENOMEM) {
pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n",
cmd);
transport_handle_queue_full(cmd, cmd->se_dev);
* frontend know that WRITE buffers are ready.
*/
ret = cmd->se_tfo->write_pending(cmd);
- if (ret == -EAGAIN)
+ if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
else if (ret < 0)
return ret;
pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd);
cmd->t_state = TRANSPORT_COMPLETE_QF_WP;
transport_handle_queue_full(cmd, cmd->se_dev);
- return ret;
+ return 0;
}
/**
core_tmr_release_req(cmd->se_tmr_req);
if (cmd->t_task_cdb != cmd->__t_task_cdb)
kfree(cmd->t_task_cdb);
+ /*
+ * Check if target_wait_for_sess_cmds() is expecting to
+ * release se_cmd directly here..
+ */
+ if (cmd->check_release != 0 && cmd->se_tfo->check_release_cmd)
+ if (cmd->se_tfo->check_release_cmd(cmd) != 0)
+ return;
+
cmd->se_tfo->release_cmd(cmd);
}
EXPORT_SYMBOL(transport_release_cmd);
}
EXPORT_SYMBOL(transport_generic_free_cmd);
+/* target_get_sess_cmd - Add command to active ->sess_cmd_list
+ * @se_sess: session to reference
+ * @se_cmd: command descriptor to add
+ */
+void target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+ list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list);
+ se_cmd->check_release = 1;
+ spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+}
+EXPORT_SYMBOL(target_get_sess_cmd);
+
+/* target_put_sess_cmd - Check for active I/O shutdown or list delete
+ * @se_sess: session to reference
+ * @se_cmd: command descriptor to drop
+ */
+int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+ if (list_empty(&se_cmd->se_cmd_list)) {
+ spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+ WARN_ON(1);
+ return 0;
+ }
+
+ if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
+ spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+ complete(&se_cmd->cmd_wait_comp);
+ return 1;
+ }
+ list_del(&se_cmd->se_cmd_list);
+ spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(target_put_sess_cmd);
+
+/* target_splice_sess_cmd_list - Split active cmds into sess_wait_list
+ * @se_sess: session to split
+ */
+void target_splice_sess_cmd_list(struct se_session *se_sess)
+{
+ struct se_cmd *se_cmd;
+ unsigned long flags;
+
+ WARN_ON(!list_empty(&se_sess->sess_wait_list));
+ INIT_LIST_HEAD(&se_sess->sess_wait_list);
+
+ spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+ se_sess->sess_tearing_down = 1;
+
+ list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
+
+ list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
+ se_cmd->cmd_wait_set = 1;
+
+ spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+}
+EXPORT_SYMBOL(target_splice_sess_cmd_list);
+
+/* target_wait_for_sess_cmds - Wait for outstanding descriptors
+ * @se_sess: session to wait for active I/O
+ * @wait_for_tasks: Make extra transport_wait_for_tasks call
+ */
+void target_wait_for_sess_cmds(
+ struct se_session *se_sess,
+ int wait_for_tasks)
+{
+ struct se_cmd *se_cmd, *tmp_cmd;
+ bool rc = false;
+
+ list_for_each_entry_safe(se_cmd, tmp_cmd,
+ &se_sess->sess_wait_list, se_cmd_list) {
+ list_del(&se_cmd->se_cmd_list);
+
+ pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
+ " %d\n", se_cmd, se_cmd->t_state,
+ se_cmd->se_tfo->get_cmd_state(se_cmd));
+
+ if (wait_for_tasks) {
+ pr_debug("Calling transport_wait_for_tasks se_cmd: %p t_state: %d,"
+ " fabric state: %d\n", se_cmd, se_cmd->t_state,
+ se_cmd->se_tfo->get_cmd_state(se_cmd));
+
+ rc = transport_wait_for_tasks(se_cmd);
+
+ pr_debug("After transport_wait_for_tasks se_cmd: %p t_state: %d,"
+ " fabric state: %d\n", se_cmd, se_cmd->t_state,
+ se_cmd->se_tfo->get_cmd_state(se_cmd));
+ }
+
+ if (!rc) {
+ wait_for_completion(&se_cmd->cmd_wait_comp);
+ pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d"
+ " fabric state: %d\n", se_cmd, se_cmd->t_state,
+ se_cmd->se_tfo->get_cmd_state(se_cmd));
+ }
+
+ se_cmd->se_tfo->release_cmd(se_cmd);
+ }
+}
+EXPORT_SYMBOL(target_wait_for_sess_cmds);
+
/* transport_lun_wait_for_tasks():
*
* Called from ConfigFS context to stop the passed struct se_cmd to allow
* Called from frontend fabric context to wait for storage engine
* to pause and/or release frontend generated struct se_cmd.
*/
-void transport_wait_for_tasks(struct se_cmd *cmd)
+bool transport_wait_for_tasks(struct se_cmd *cmd)
{
unsigned long flags;
spin_lock_irqsave(&cmd->t_state_lock, flags);
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) && !(cmd->se_tmr_req)) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- return;
+ return false;
}
/*
* Only perform a possible wait_for_tasks if SCF_SUPPORTED_SAM_OPCODE
*/
if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) && !cmd->se_tmr_req) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- return;
+ return false;
}
/*
* If we are already stopped due to an external event (ie: LUN shutdown)
if (!atomic_read(&cmd->t_transport_active) ||
atomic_read(&cmd->t_transport_aborted)) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- return;
+ return false;
}
atomic_set(&cmd->t_transport_stop, 1);
cmd->se_tfo->get_task_tag(cmd));
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
+ return true;
}
EXPORT_SYMBOL(transport_wait_for_tasks);
break;
}
ret = transport_generic_new_cmd(cmd);
- if (ret == -EAGAIN)
- break;
- else if (ret < 0) {
+ if (ret < 0) {
cmd->transport_error_status = ret;
transport_generic_request_failure(cmd,
0, (cmd->data_direction !=
case TRANSPORT_PROCESS_WRITE:
transport_generic_process_write(cmd);
break;
- case TRANSPORT_FREE_CMD_INTR:
- transport_generic_free_cmd(cmd, 0);
- break;
case TRANSPORT_PROCESS_TMR:
transport_generic_do_tmr(cmd);
break;
#include <linux/device.h>
#include <linux/slab.h>
+ #include <linux/export.h>
#include <linux/usb.h>
#include <linux/usb/quirks.h>
#include <linux/usb/hcd.h>
return -EAGAIN;
status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND);
+
+ /* Allow a retry if autosuspend failed temporarily */
+ if (status == -EAGAIN || status == -EBUSY)
+ usb_mark_last_busy(udev);
+
/* The PM core reacts badly unless the return code is 0,
* -EAGAIN, or -EBUSY, so always return -EBUSY on an error.
*/
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/delay.h>
+ #include <linux/module.h>
#include <linux/gpio.h>
#include <linux/lcd.h>
#include <linux/slab.h>
dev_dbg(&spi->dev, "initializing LCD\n");
- if (priv->io_reg) {
- regulator_set_voltage(priv->io_reg, 1800000, 1800000);
- regulator_enable(priv->io_reg);
- }
+ regulator_set_voltage(priv->io_reg, 1800000, 1800000);
+ regulator_enable(priv->io_reg);
- if (priv->core_reg) {
- regulator_set_voltage(priv->core_reg, 2800000, 2800000);
- regulator_enable(priv->core_reg);
- }
+ regulator_set_voltage(priv->core_reg, 2800000, 2800000);
+ regulator_enable(priv->core_reg);
l4f00242t03_reset(pdata->reset_gpio);
gpio_set_value(pdata->data_enable_gpio, 0);
- if (priv->io_reg)
- regulator_disable(priv->io_reg);
-
- if (priv->core_reg)
- regulator_disable(priv->core_reg);
+ regulator_disable(priv->io_reg);
+ regulator_disable(priv->core_reg);
}
static int l4f00242t03_lcd_power_get(struct lcd_device *ld)
priv->spi = spi;
- ret = gpio_request(pdata->reset_gpio, "lcd l4f00242t03 reset");
+ ret = gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH,
+ "lcd l4f00242t03 reset");
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n");
goto err;
}
- ret = gpio_direction_output(pdata->reset_gpio, 1);
- if (ret)
- goto err2;
-
- ret = gpio_request(pdata->data_enable_gpio,
- "lcd l4f00242t03 data enable");
+ ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW,
+ "lcd l4f00242t03 data enable");
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n");
goto err2;
}
- ret = gpio_direction_output(pdata->data_enable_gpio, 0);
- if (ret)
+ priv->io_reg = regulator_get(&spi->dev, "vdd");
+ if (IS_ERR(priv->io_reg)) {
+ dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
+ __func__);
goto err3;
-
- if (pdata->io_supply) {
- priv->io_reg = regulator_get(NULL, pdata->io_supply);
-
- if (IS_ERR(priv->io_reg)) {
- pr_err("%s: Unable to get the IO regulator\n",
- __func__);
- goto err3;
- }
}
- if (pdata->core_supply) {
- priv->core_reg = regulator_get(NULL, pdata->core_supply);
-
- if (IS_ERR(priv->core_reg)) {
- pr_err("%s: Unable to get the core regulator\n",
- __func__);
- goto err4;
- }
+ priv->core_reg = regulator_get(&spi->dev, "vcore");
+ if (IS_ERR(priv->core_reg)) {
+ dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
+ __func__);
+ goto err4;
}
priv->ld = lcd_device_register("l4f00242t03",
return 0;
err5:
- if (priv->core_reg)
- regulator_put(priv->core_reg);
+ regulator_put(priv->core_reg);
err4:
- if (priv->io_reg)
- regulator_put(priv->io_reg);
+ regulator_put(priv->io_reg);
err3:
gpio_free(pdata->data_enable_gpio);
err2:
gpio_free(pdata->data_enable_gpio);
gpio_free(pdata->reset_gpio);
- if (priv->io_reg)
- regulator_put(priv->io_reg);
- if (priv->core_reg)
- regulator_put(priv->core_reg);
+ regulator_put(priv->io_reg);
+ regulator_put(priv->core_reg);
kfree(priv);
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+ #include <linux/export.h>
+ #include <linux/moduleparam.h>
#include "w1.h"
#include "w1_log.h"
memcpy(&dev->dev, device, sizeof(struct device));
dev_set_name(&dev->dev, "w1_bus_master%u", dev->id);
snprintf(dev->name, sizeof(dev->name), "w1_bus_master%u", dev->id);
+ dev->dev.init_name = dev->name;
dev->driver = driver;
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
+ #include <linux/export.h>
#include <asm/xen/hypervisor.h>
#include <xen/interface/xen.h>
#include <xen/interface/event_channel.h>
*vaddr = NULL;
- area = xen_alloc_vm_area(PAGE_SIZE);
+ area = alloc_vm_area(PAGE_SIZE);
if (!area)
return -ENOMEM;
BUG();
if (op.status != GNTST_okay) {
- xen_free_vm_area(area);
+ free_vm_area(area);
xenbus_dev_fatal(dev, op.status,
"mapping in shared page %d from domain %d",
gnt_ref, dev->otherend_id);
BUG();
if (op.status == GNTST_okay)
- xen_free_vm_area(area);
+ free_vm_area(area);
else
xenbus_dev_error(dev, op.status,
"unmapping page at handle %d error %d",
#include <asm/uaccess.h>
#include <asm/processor.h>
#include <linux/inet.h>
+ #include <linux/module.h>
#include <net/ipv6.h>
#include "cifspdu.h"
#include "cifsglob.h"
else
#endif /* CIFS_WEAK_PW_HASH */
rc = SMBNTencrypt(tcon->password, ses->server->cryptkey,
- bcc_ptr);
+ bcc_ptr, nls_codepage);
bcc_ptr += CIFS_AUTH_RESP_SIZE;
if (ses->capabilities & CAP_UNICODE) {
#include <linux/bio.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
+ #include <linux/module.h>
#include <linux/mtd/mtd.h>
#include <linux/statfs.h>
#include <linux/buffer_head.h>
dump_segfile(sb);
}
-/*
- * TODO: move to lib/string.c
- */
-/**
- * memchr_inv - Find a character in an area of memory.
- * @s: The memory area
- * @c: The byte to search for
- * @n: The size of the area.
- *
- * returns the address of the first character other than @c, or %NULL
- * if the whole buffer contains just @c.
- */
-void *memchr_inv(const void *s, int c, size_t n)
-{
- const unsigned char *p = s;
- while (n-- != 0)
- if ((unsigned char)c != *p++)
- return (void *)(p - 1);
-
- return NULL;
-}
-
/*
* FIXME: There should be a reserve for root, similar to ext2.
*/
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
+ #include <linux/module.h>
#include "internal.h"
#include "nfs4filelayout.h"
fl->dsaddr = dsaddr;
- if (fl->first_stripe_index < 0 ||
- fl->first_stripe_index >= dsaddr->stripe_count) {
- dprintk("%s Bad first_stripe_index %d\n",
+ if (fl->first_stripe_index >= dsaddr->stripe_count) {
+ dprintk("%s Bad first_stripe_index %u\n",
__func__, fl->first_stripe_index);
goto out_put;
}
/* Note that a zero value for num_fh is legal for STRIPE_SPARSE.
* Futher checking is done in filelayout_check_layout */
- if (fl->num_fh < 0 || fl->num_fh >
+ if (fl->num_fh >
max(NFS4_PNFS_MAX_STRIPE_CNT, NFS4_PNFS_MAX_MULTI_CNT))
goto out_err;
#include <linux/nfs_page.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_mount.h>
+ #include <linux/export.h>
#include "internal.h"
#include "pnfs.h"
/**
* nfs_create_request - Create an NFS read/write request.
- * @file: file descriptor to use
+ * @ctx: open context to use
* @inode: inode to which the request is attached
* @page: page to write
* @offset: starting offset within the page for the write
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
+ #include <linux/module.h>
#include "internal.h"
#include "pnfs.h"
#include "iostat.h"
/* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */
data = kzalloc(sizeof(*data), GFP_NOFS);
if (!data) {
- mark_inode_dirty_sync(inode);
status = -ENOMEM;
goto out;
}
+ if (!test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags))
+ goto out_free;
+
+ if (test_and_set_bit(NFS_INO_LAYOUTCOMMITTING, &nfsi->flags)) {
+ if (!sync) {
+ status = -EAGAIN;
+ goto out_free;
+ }
+ status = wait_on_bit_lock(&nfsi->flags, NFS_INO_LAYOUTCOMMITTING,
+ nfs_wait_bit_killable, TASK_KILLABLE);
+ if (status)
+ goto out_free;
+ }
+
INIT_LIST_HEAD(&data->lseg_list);
spin_lock(&inode->i_lock);
if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
+ clear_bit(NFS_INO_LAYOUTCOMMITTING, &nfsi->flags);
spin_unlock(&inode->i_lock);
- kfree(data);
- goto out;
+ wake_up_bit(&nfsi->flags, NFS_INO_LAYOUTCOMMITTING);
+ goto out_free;
}
pnfs_list_write_lseg(inode, &data->lseg_list);
status = nfs4_proc_layoutcommit(data, sync);
out:
+ if (status)
+ mark_inode_dirty_sync(inode);
dprintk("<-- %s status %d\n", __func__, status);
return status;
+out_free:
+ kfree(data);
+ goto out;
}
#include <linux/nfs_mount.h>
#include <linux/nfs_page.h>
#include <linux/backing-dev.h>
+ #include <linux/export.h>
#include <asm/uaccess.h>
{
struct nfs_writeargs *argp = &data->args;
struct nfs_writeres *resp = &data->res;
- struct nfs_server *server = NFS_SERVER(data->inode);
int status;
dprintk("NFS: %5u nfs_writeback_done (status %d)\n",
if (time_before(complain, jiffies)) {
dprintk("NFS: faulty NFS server %s:"
" (committed = %d) != (stable = %d)\n",
- server->nfs_client->cl_hostname,
+ NFS_SERVER(data->inode)->nfs_client->cl_hostname,
resp->verf->committed, argp->stable);
complain = jiffies + 300 * HZ;
}
#include <linux/sched.h>
#include <linux/freezer.h>
+ #include <linux/module.h>
#include <linux/fs_struct.h>
#include <linux/swap.h>
nfsd_serv = NULL;
nfsd_shutdown();
+ svc_rpcb_cleanup(serv);
+
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
nfsd_export_flush();
* can build the DRM (part of PI DRI). 4/21/2000 S + B */
#include <asm/current.h>
#endif /* __alpha__ */
- #include <linux/module.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
+ struct module;
+
struct drm_file;
struct drm_device;
* using the DRM_DEBUG_KMS and DRM_DEBUG.
*/
-extern __attribute__((format (printf, 4, 5)))
+extern __printf(4, 5)
void drm_ut_debug_printk(unsigned int request_level,
- const char *prefix,
- const char *function_name,
- const char *format, ...);
-extern __attribute__((format (printf, 2, 3)))
+ const char *prefix,
+ const char *function_name,
+ const char *format, ...);
+extern __printf(2, 3)
int drm_err(const char *func, const char *format, ...);
/***********************************************************************/
#include <linux/wait.h>
#include <linux/mempool.h>
#include <linux/bio.h>
- #include <linux/module.h>
#include <linux/stringify.h>
#include <linux/gfp.h>
#include <linux/bsg.h>
#include <asm/scatterlist.h>
+ struct module;
struct scsi_ioctl_command;
struct request_queue;
#include <linux/elevator.h>
typedef void (request_fn_proc) (struct request_queue *q);
-typedef int (make_request_fn) (struct request_queue *q, struct bio *bio);
+typedef void (make_request_fn) (struct request_queue *q, struct bio *bio);
typedef int (prep_rq_fn) (struct request_queue *, struct request *);
typedef void (unprep_rq_fn) (struct request_queue *, struct request *);
extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
struct scsi_ioctl_command __user *);
+extern void blk_queue_bio(struct request_queue *q, struct bio *bio);
+
/*
* A queue has just exitted congestion. Note this in the global counter of
* congested queues, and wake up anyone who was waiting for requests to be
extern void blk_put_queue(struct request_queue *);
/*
- * Note: Code in between changing the blk_plug list/cb_list or element of such
- * lists is preemptable, but such code can't do sleep (or be very careful),
- * otherwise data is corrupted. For details, please check schedule() where
- * blk_schedule_flush_plug() is called.
+ * blk_plug permits building a queue of related requests by holding the I/O
+ * fragments for a short period. This allows merging of sequential requests
+ * into single larger request. As the requests are moved from a per-task list to
+ * the device's request_queue in a batch, this results in improved scalability
+ * as the lock contention for request_queue lock is reduced.
+ *
+ * It is ok not to disable preemption when adding the request to the plug list
+ * or when attempting a merge, because blk_schedule_flush_list() will only flush
+ * the plug list when the task sleeps by itself. For details, please see
+ * schedule() where blk_schedule_flush_plug() is called.
*/
struct blk_plug {
- unsigned long magic;
- struct list_head list;
- struct list_head cb_list;
- unsigned int should_sort;
+ unsigned long magic; /* detect uninitialized use-cases */
+ struct list_head list; /* requests */
+ struct list_head cb_list; /* md requires an unplug callback */
+ unsigned int should_sort; /* list to be sorted before flushing? */
};
#define BLK_MAX_REQUEST_COUNT 16
}
#endif
-#ifdef CONFIG_BLK_DEV_THROTTLING
-extern int blk_throtl_init(struct request_queue *q);
-extern void blk_throtl_exit(struct request_queue *q);
-extern int blk_throtl_bio(struct request_queue *q, struct bio **bio);
-#else /* CONFIG_BLK_DEV_THROTTLING */
-static inline int blk_throtl_bio(struct request_queue *q, struct bio **bio)
-{
- return 0;
-}
-
-static inline int blk_throtl_init(struct request_queue *q) { return 0; }
-static inline int blk_throtl_exit(struct request_queue *q) { return 0; }
-#endif /* CONFIG_BLK_DEV_THROTTLING */
-
#define MODULE_ALIAS_BLOCKDEV(major,minor) \
MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))
#define MODULE_ALIAS_BLOCKDEV_MAJOR(major) \
#define _LINUX_CRYPTO_H
#include <linux/atomic.h>
- #include <linux/module.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/slab.h>
#define CRYPTO_ALG_TESTED 0x00000400
+/*
+ * Set if the algorithm is an instance that is build from templates.
+ */
+#define CRYPTO_ALG_INSTANCE 0x00000800
+
/*
* Transform masks and values (for crt_flags).
*/
return tfm->__crt_alg->cra_priority;
}
- static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm)
- {
- return module_name(tfm->__crt_alg->cra_module);
- }
-
static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
{
return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
#include <linux/lockdep.h>
#include <linux/compiler.h>
#include <linux/types.h>
- #include <linux/module.h>
+ #include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/atomic.h>
#include <asm/device.h>
struct device_private;
struct device_driver;
struct driver_private;
+ struct module;
struct class;
struct subsys_private;
struct bus_type;
return kobject_name(&dev->kobj);
}
-extern int dev_set_name(struct device *dev, const char *name, ...)
- __attribute__((format(printf, 2, 3)));
+extern __printf(2, 3)
+int dev_set_name(struct device *dev, const char *name, ...);
#ifdef CONFIG_NUMA
static inline int dev_to_node(struct device *dev)
*/
extern struct device *__root_device_register(const char *name,
struct module *owner);
- static inline struct device *root_device_register(const char *name)
- {
- return __root_device_register(name, THIS_MODULE);
- }
+
+ /*
+ * This is a macro to avoid include problems with THIS_MODULE,
+ * just as per what is done for device_schedule_callback() above.
+ */
+ #define root_device_register(name) \
+ __root_device_register(name, THIS_MODULE)
+
extern void root_device_unregister(struct device *root);
static inline void *dev_get_platdata(const struct device *dev)
void *drvdata,
const char *fmt,
va_list vargs);
-extern struct device *device_create(struct class *cls, struct device *parent,
- dev_t devt, void *drvdata,
- const char *fmt, ...)
- __attribute__((format(printf, 5, 6)));
+extern __printf(5, 6)
+struct device *device_create(struct class *cls, struct device *parent,
+ dev_t devt, void *drvdata,
+ const char *fmt, ...);
extern void device_destroy(struct class *cls, dev_t devt);
/*
extern int __dev_printk(const char *level, const struct device *dev,
struct va_format *vaf);
-extern int dev_printk(const char *level, const struct device *dev,
- const char *fmt, ...)
- __attribute__ ((format (printf, 3, 4)));
-extern int dev_emerg(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int dev_alert(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int dev_crit(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int dev_err(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int dev_warn(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int dev_notice(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-extern int _dev_info(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
+extern __printf(3, 4)
+int dev_printk(const char *level, const struct device *dev,
+ const char *fmt, ...)
+ ;
+extern __printf(2, 3)
+int dev_emerg(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_alert(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_crit(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_err(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_warn(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_notice(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int _dev_info(const struct device *dev, const char *fmt, ...);
#else
static inline int __dev_printk(const char *level, const struct device *dev,
struct va_format *vaf)
- { return 0; }
-static inline int dev_printk(const char *level, const struct device *dev,
- const char *fmt, ...)
- __attribute__ ((format (printf, 3, 4)));
-static inline int dev_printk(const char *level, const struct device *dev,
- const char *fmt, ...)
- { return 0; }
-
-static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int dev_crit(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_crit(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int dev_alert(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_alert(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int dev_err(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_err(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int dev_warn(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_warn(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int dev_notice(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int dev_notice(const struct device *dev, const char *fmt, ...)
- { return 0; }
-static inline int _dev_info(const struct device *dev, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-static inline int _dev_info(const struct device *dev, const char *fmt, ...)
- { return 0; }
+{ return 0; }
+static inline __printf(3, 4)
+int dev_printk(const char *level, const struct device *dev,
+ const char *fmt, ...)
+{ return 0; }
+
+static inline __printf(2, 3)
+int dev_emerg(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_crit(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_alert(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_err(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_warn(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_notice(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int _dev_info(const struct device *dev, const char *fmt, ...)
+{ return 0; }
#endif
#include <linux/device.h>
#include <linux/uio.h>
#include <linux/dma-direction.h>
+#include <linux/scatterlist.h>
+ #include <linux/bitmap.h>
+ #include <asm/page.h>
-struct scatterlist;
-
/**
* typedef dma_cookie_t - an opaque DMA cookie
*
(unsigned long)config);
}
+static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(
+ struct dma_chan *chan, void *buf, size_t len,
+ enum dma_data_direction dir, unsigned long flags)
+{
+ struct scatterlist sg;
+ sg_init_one(&sg, buf, len);
+
+ return chan->device->device_prep_slave_sg(chan, &sg, 1, dir, flags);
+}
+
static inline int dmaengine_terminate_all(struct dma_chan *chan)
{
return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0);
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
void __gameport_register_port(struct gameport *gameport, struct module *owner);
- static inline void gameport_register_port(struct gameport *gameport)
- {
- __gameport_register_port(gameport, THIS_MODULE);
- }
+ /* use a define to avoid include chaining to get THIS_MODULE */
+ #define gameport_register_port(gameport) \
+ __gameport_register_port(gameport, THIS_MODULE)
void gameport_unregister_port(struct gameport *gameport);
-void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
+__printf(2, 3)
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...);
#else
return;
}
-static inline void gameport_set_phys(struct gameport *gameport,
- const char *fmt, ...)
+static inline __printf(2, 3)
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
{
return;
}
mutex_unlock(&gameport->drv_mutex);
}
- int __gameport_register_driver(struct gameport_driver *drv,
+ int __must_check __gameport_register_driver(struct gameport_driver *drv,
struct module *owner, const char *mod_name);
- static inline int __must_check gameport_register_driver(struct gameport_driver *drv)
- {
- return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME);
- }
+
+ /* use a define to avoid include chaining to get THIS_MODULE & friends */
+ #define gameport_register_driver(drv) \
+ __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)
void gameport_unregister_driver(struct gameport_driver *drv);
#include <linux/spinlock.h>
#include <asm/byteorder.h>
+ #include <asm/errno.h>
typedef u32 phandle;
typedef u32 ihandle;
extern int of_property_read_string(struct device_node *np,
const char *propname,
const char **out_string);
+extern int of_property_read_string_index(struct device_node *np,
+ const char *propname,
+ int index, const char **output);
+extern int of_property_count_strings(struct device_node *np,
+ const char *propname);
extern int of_device_is_compatible(const struct device_node *device,
const char *);
extern int of_device_is_available(const struct device_node *device);
return -ENOSYS;
}
+static inline int of_property_read_string_index(struct device_node *np,
+ const char *propname, int index,
+ const char **out_string)
+{
+ return -ENOSYS;
+}
+
+static inline int of_property_count_strings(struct device_node *np,
+ const char *propname)
+{
+ return -ENOSYS;
+}
+
static inline const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp)
return NULL;
}
+static inline int of_alias_get_id(struct device_node *np, const char *stem)
+{
+ return -ENOSYS;
+}
+
+static inline int of_machine_is_compatible(const char *compat)
+{
+ return 0;
+}
+
#define of_match_ptr(_ptr) NULL
#define of_match_node(_matches, _node) NULL
#endif /* CONFIG_OF */
#ifndef __SAA7146__
#define __SAA7146__
- #include <linux/module.h> /* for module-version */
#include <linux/delay.h> /* for delay-stuff */
#include <linux/slab.h> /* for kmalloc/kfree */
#include <linux/pci.h> /* for pci-config-stuff, vendor ids etc. */
extern unsigned int saa7146_debug;
-//#define DEBUG_PROLOG printk("(0x%08x)(0x%08x) %s: %s(): ",(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,RPS_ADDR0))),(dev==0?-1:(dev->mem==0?-1:saa7146_read(dev,IER))),KBUILD_MODNAME,__func__)
-
#ifndef DEBUG_VARIABLE
#define DEBUG_VARIABLE saa7146_debug
#endif
-#define DEBUG_PROLOG printk("%s: %s(): ",KBUILD_MODNAME, __func__)
-#define INFO(x) { printk("%s: ",KBUILD_MODNAME); printk x; }
-
-#define ERR(x) { DEBUG_PROLOG; printk x; }
-
-#define DEB_S(x) if (0!=(DEBUG_VARIABLE&0x01)) { DEBUG_PROLOG; printk x; } /* simple debug messages */
-#define DEB_D(x) if (0!=(DEBUG_VARIABLE&0x02)) { DEBUG_PROLOG; printk x; } /* more detailed debug messages */
-#define DEB_EE(x) if (0!=(DEBUG_VARIABLE&0x04)) { DEBUG_PROLOG; printk x; } /* print enter and exit of functions */
-#define DEB_I2C(x) if (0!=(DEBUG_VARIABLE&0x08)) { DEBUG_PROLOG; printk x; } /* i2c debug messages */
-#define DEB_VBI(x) if (0!=(DEBUG_VARIABLE&0x10)) { DEBUG_PROLOG; printk x; } /* vbi debug messages */
-#define DEB_INT(x) if (0!=(DEBUG_VARIABLE&0x20)) { DEBUG_PROLOG; printk x; } /* interrupt debug messages */
-#define DEB_CAP(x) if (0!=(DEBUG_VARIABLE&0x40)) { DEBUG_PROLOG; printk x; } /* capture debug messages */
+#define ERR(fmt, ...) pr_err("%s: " fmt, __func__, ##__VA_ARGS__)
+
+#define _DBG(mask, fmt, ...) \
+do { \
+ if (DEBUG_VARIABLE & mask) \
+ pr_debug("%s(): " fmt, __func__, ##__VA_ARGS__); \
+} while (0)
+
+/* simple debug messages */
+#define DEB_S(fmt, ...) _DBG(0x01, fmt, ##__VA_ARGS__)
+/* more detailed debug messages */
+#define DEB_D(fmt, ...) _DBG(0x02, fmt, ##__VA_ARGS__)
+/* print enter and exit of functions */
+#define DEB_EE(fmt, ...) _DBG(0x04, fmt, ##__VA_ARGS__)
+/* i2c debug messages */
+#define DEB_I2C(fmt, ...) _DBG(0x08, fmt, ##__VA_ARGS__)
+/* vbi debug messages */
+#define DEB_VBI(fmt, ...) _DBG(0x10, fmt, ##__VA_ARGS__)
+/* interrupt debug messages */
+#define DEB_INT(fmt, ...) _DBG(0x20, fmt, ##__VA_ARGS__)
+/* capture debug messages */
+#define DEB_CAP(fmt, ...) _DBG(0x40, fmt, ##__VA_ARGS__)
#define SAA7146_ISR_CLEAR(x,y) \
saa7146_write(x, ISR, (y));
+ struct module;
+
struct saa7146_dev;
struct saa7146_extension;
struct saa7146_vv;
#include <linux/kmemcheck.h>
#include <linux/list.h>
- #include <linux/module.h>
#include <linux/timer.h>
#include <linux/types.h>
#include <linux/workqueue.h>
struct inet_bind_bucket *tw_tb;
struct hlist_node tw_death_node;
};
+#define tw_tclass tw_tos
static inline void inet_twsk_add_node_rcu(struct inet_timewait_sock *tw,
struct hlist_nulls_head *list)
const char *(*state_name)(int state);
- int (*state_transition)(struct ip_vs_conn *cp, int direction,
- const struct sk_buff *skb,
- struct ip_vs_proto_data *pd);
+ void (*state_transition)(struct ip_vs_conn *cp, int direction,
+ const struct sk_buff *skb,
+ struct ip_vs_proto_data *pd);
int (*register_app)(struct net *net, struct ip_vs_app *inc);
struct ip_vs_pe *ip_vs_pe_getbyname(const char *name);
struct ip_vs_pe *__ip_vs_pe_getbyname(const char *pe_name);
- static inline void ip_vs_pe_get(const struct ip_vs_pe *pe)
- {
- if (pe && pe->module)
+ /*
+ * Use a #define to avoid all of module.h just for these trivial ops
+ */
+ #define ip_vs_pe_get(pe) \
+ if (pe && pe->module) \
__module_get(pe->module);
- }
- static inline void ip_vs_pe_put(const struct ip_vs_pe *pe)
- {
- if (pe && pe->module)
+ #define ip_vs_pe_put(pe) \
+ if (pe && pe->module) \
module_put(pe->module);
- }
/*
* IPVS protocol functions (from ip_vs_proto.c)
extern void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
int outin);
-extern int ip_vs_confirm_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp);
+extern int ip_vs_confirm_conntrack(struct sk_buff *skb);
extern void ip_vs_nfct_expect_related(struct sk_buff *skb, struct nf_conn *ct,
struct ip_vs_conn *cp, u_int8_t proto,
const __be16 port, int from_rs);
{
}
-static inline int ip_vs_confirm_conntrack(struct sk_buff *skb,
- struct ip_vs_conn *cp)
+static inline int ip_vs_confirm_conntrack(struct sk_buff *skb)
{
return NF_ACCEPT;
}
#include <linux/list_nulls.h>
#include <linux/timer.h>
#include <linux/cache.h>
- #include <linux/module.h>
#include <linux/lockdep.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h> /* struct sk_buff */
printk(KERN_DEBUG msg); } while (0)
#else
/* Validate arguments and do nothing */
-static inline void __attribute__ ((format (printf, 2, 3)))
-SOCK_DEBUG(struct sock *sk, const char *msg, ...)
+static inline __printf(2, 3)
+void SOCK_DEBUG(struct sock *sk, const char *msg, ...)
{
}
#endif
struct timewait_sock_ops;
struct inet_hashinfo;
struct raw_hashinfo;
+ struct module;
/* Networking protocol blocks we attach to sockets.
* socket layer -> transport layer interface
*
*/
- #include <linux/module.h>
#include <linux/sched.h> /* wake_up() */
#include <linux/mutex.h> /* struct mutex */
#include <linux/rwsem.h> /* struct rw_semaphore */
#ifdef CONFIG_PCI
struct pci_dev;
#endif
+ struct module;
/* device allocation stuff */
/* --- */
#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
+__printf(4, 5)
void __snd_printk(unsigned int level, const char *file, int line,
- const char *format, ...)
- __attribute__ ((format (printf, 4, 5)));
+ const char *format, ...);
#else
#define __snd_printk(level, file, line, format, args...) \
printk(format, ##args)
#include <linux/device.h>
#include <linux/notifier.h>
#include <linux/mutex.h>
+ #include <linux/export.h>
#include <linux/completion.h>
#include <linux/init.h>
#include <linux/slab.h>
__attribute__((format(scanf, 4, 5)));
/* Single printf and write: returns -errno or 0. */
+__printf(4, 5)
int xenbus_printf(struct xenbus_transaction t,
- const char *dir, const char *node, const char *fmt, ...)
- __attribute__((format(printf, 4, 5)));
+ const char *dir, const char *node, const char *fmt, ...);
/* Generic read function: NULL-terminated triples of name,
* sprintf-style type string, and pointer. Returns 0 or errno.*/
struct xenbus_watch *watch,
void (*callback)(struct xenbus_watch *,
const char **, unsigned int));
+__printf(4, 5)
int xenbus_watch_pathfmt(struct xenbus_device *dev, struct xenbus_watch *watch,
void (*callback)(struct xenbus_watch *,
const char **, unsigned int),
- const char *pathfmt, ...)
- __attribute__ ((format (printf, 4, 5)));
+ const char *pathfmt, ...);
int xenbus_switch_state(struct xenbus_device *dev, enum xenbus_state new_state);
int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn);
enum xenbus_state xenbus_read_driver_state(const char *path);
-__attribute__((format(printf, 3, 4)))
+__printf(3, 4)
void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...);
-__attribute__((format(printf, 3, 4)))
+__printf(3, 4)
void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...);
const char *xenbus_strstate(enum xenbus_state state);
#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/kthread.h>
#include <linux/stop_machine.h>
#include <linux/mutex.h>
#include <linux/gfp.h>
+#include <linux/suspend.h>
#ifdef CONFIG_SMP
/* Serializes the updates to cpu_online_mask, cpu_present_mask */
return 0;
}
core_initcall(alloc_frozen_cpus);
+
+/*
+ * Prevent regular CPU hotplug from racing with the freezer, by disabling CPU
+ * hotplug when tasks are about to be frozen. Also, don't allow the freezer
+ * to continue until any currently running CPU hotplug operation gets
+ * completed.
+ * To modify the 'cpu_hotplug_disabled' flag, we need to acquire the
+ * 'cpu_add_remove_lock'. And this same lock is also taken by the regular
+ * CPU hotplug path and released only after it is complete. Thus, we
+ * (and hence the freezer) will block here until any currently running CPU
+ * hotplug operation gets completed.
+ */
+void cpu_hotplug_disable_before_freeze(void)
+{
+ cpu_maps_update_begin();
+ cpu_hotplug_disabled = 1;
+ cpu_maps_update_done();
+}
+
+
+/*
+ * When tasks have been thawed, re-enable regular CPU hotplug (which had been
+ * disabled while beginning to freeze tasks).
+ */
+void cpu_hotplug_enable_after_thaw(void)
+{
+ cpu_maps_update_begin();
+ cpu_hotplug_disabled = 0;
+ cpu_maps_update_done();
+}
+
+/*
+ * When callbacks for CPU hotplug notifications are being executed, we must
+ * ensure that the state of the system with respect to the tasks being frozen
+ * or not, as reported by the notification, remains unchanged *throughout the
+ * duration* of the execution of the callbacks.
+ * Hence we need to prevent the freezer from racing with regular CPU hotplug.
+ *
+ * This synchronization is implemented by mutually excluding regular CPU
+ * hotplug and Suspend/Hibernate call paths by hooking onto the Suspend/
+ * Hibernate notifications.
+ */
+static int
+cpu_hotplug_pm_callback(struct notifier_block *nb,
+ unsigned long action, void *ptr)
+{
+ switch (action) {
+
+ case PM_SUSPEND_PREPARE:
+ case PM_HIBERNATION_PREPARE:
+ cpu_hotplug_disable_before_freeze();
+ break;
+
+ case PM_POST_SUSPEND:
+ case PM_POST_HIBERNATION:
+ cpu_hotplug_enable_after_thaw();
+ break;
+
+ default:
+ return NOTIFY_DONE;
+ }
+
+ return NOTIFY_OK;
+}
+
+
+int cpu_hotplug_pm_sync_init(void)
+{
+ pm_notifier(cpu_hotplug_pm_callback, 0);
+ return 0;
+}
+core_initcall(cpu_hotplug_pm_sync_init);
+
#endif /* CONFIG_PM_SLEEP_SMP */
/**
#include <linux/mempolicy.h>
#include <linux/mm.h>
#include <linux/memory.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/pagemap.h>
static void cpuset_change_task_nodemask(struct task_struct *tsk,
nodemask_t *newmems)
{
+ bool masks_disjoint = !nodes_intersects(*newmems, tsk->mems_allowed);
+
repeat:
/*
* Allow tasks that have access to memory reserves because they have
nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems);
mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1);
-
/*
* ensure checking ->mems_allowed_change_disable after setting all new
* allowed nodes.
/*
* Allocation of memory is very fast, we needn't sleep when waiting
- * for the read-side.
+ * for the read-side. No wait is necessary, however, if at least one
+ * node remains unchanged.
*/
- while (ACCESS_ONCE(tsk->mems_allowed_change_disable)) {
+ while (masks_disjoint &&
+ ACCESS_ONCE(tsk->mems_allowed_change_disable)) {
task_unlock(tsk);
if (!task_curr(tsk))
yield();
#include <linux/crash_dump.h>
#include <linux/init.h>
#include <linux/errno.h>
- #include <linux/module.h>
+ #include <linux/export.h>
/*
* If we have booted due to a crash, max_pfn will be a very low value. We need
*/
unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
+/*
+ * stores the size of elf header of crash image
+ */
+unsigned long long elfcorehdr_size;
+
/*
* elfcorehdr= specifies the location of elf core header stored by the crashed
* kernel. This option will be passed by kexec loader to the capture kernel.
+ *
+ * Syntax: elfcorehdr=[size[KMG]@]offset[KMG]
*/
static int __init setup_elfcorehdr(char *arg)
{
if (!arg)
return -EINVAL;
elfcorehdr_addr = memparse(arg, &end);
+ if (*end == '@') {
+ elfcorehdr_size = elfcorehdr_addr;
+ elfcorehdr_addr = memparse(end + 1, &end);
+ }
return end > arg ? 0 : -EINVAL;
}
early_param("elfcorehdr", setup_elfcorehdr);
#include <linux/reboot.h>
#include <linux/vmstat.h>
#include <linux/device.h>
+ #include <linux/export.h>
#include <linux/vmalloc.h>
#include <linux/hardirq.h>
#include <linux/rculist.h>
#include <linux/uaccess.h>
-#include <linux/suspend.h>
#include <linux/syscalls.h>
#include <linux/anon_inodes.h>
#include <linux/kernel_stat.h>
struct ring_buffer *rb = event->rb;
atomic_long_sub((size >> PAGE_SHIFT) + 1, &user->locked_vm);
- vma->vm_mm->locked_vm -= event->mmap_locked;
+ vma->vm_mm->pinned_vm -= event->mmap_locked;
rcu_assign_pointer(event->rb, NULL);
mutex_unlock(&event->mmap_mutex);
lock_limit = rlimit(RLIMIT_MEMLOCK);
lock_limit >>= PAGE_SHIFT;
- locked = vma->vm_mm->locked_vm + extra;
+ locked = vma->vm_mm->pinned_vm + extra;
if ((locked > lock_limit) && perf_paranoid_tracepoint_raw() &&
!capable(CAP_IPC_LOCK)) {
atomic_long_add(user_extra, &user->locked_vm);
event->mmap_locked = extra;
event->mmap_user = get_current_user();
- vma->vm_mm->locked_vm += event->mmap_locked;
+ vma->vm_mm->pinned_vm += event->mmap_locked;
unlock:
if (!ret)
struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu);
mutex_lock(&swhash->hlist_mutex);
- if (swhash->hlist_refcount > 0 && !swhash->swevent_hlist) {
+ if (swhash->hlist_refcount > 0) {
struct swevent_hlist *hlist;
hlist = kzalloc_node(sizeof(*hlist), GFP_KERNEL, cpu_to_node(cpu));
{
unsigned int cpu = (long)hcpu;
- /*
- * Ignore suspend/resume action, the perf_pm_notifier will
- * take care of that.
- */
- if (action & CPU_TASKS_FROZEN)
- return NOTIFY_OK;
-
- switch (action) {
+ switch (action & ~CPU_TASKS_FROZEN) {
case CPU_UP_PREPARE:
case CPU_DOWN_FAILED:
return NOTIFY_OK;
}
-static void perf_pm_resume_cpu(void *unused)
-{
- struct perf_cpu_context *cpuctx;
- struct perf_event_context *ctx;
- struct pmu *pmu;
- int idx;
-
- idx = srcu_read_lock(&pmus_srcu);
- list_for_each_entry_rcu(pmu, &pmus, entry) {
- cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
- ctx = cpuctx->task_ctx;
-
- perf_ctx_lock(cpuctx, ctx);
- perf_pmu_disable(cpuctx->ctx.pmu);
-
- cpu_ctx_sched_out(cpuctx, EVENT_ALL);
- if (ctx)
- ctx_sched_out(ctx, cpuctx, EVENT_ALL);
-
- perf_pmu_enable(cpuctx->ctx.pmu);
- perf_ctx_unlock(cpuctx, ctx);
- }
- srcu_read_unlock(&pmus_srcu, idx);
-}
-
-static void perf_pm_suspend_cpu(void *unused)
-{
- struct perf_cpu_context *cpuctx;
- struct perf_event_context *ctx;
- struct pmu *pmu;
- int idx;
-
- idx = srcu_read_lock(&pmus_srcu);
- list_for_each_entry_rcu(pmu, &pmus, entry) {
- cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
- ctx = cpuctx->task_ctx;
-
- perf_ctx_lock(cpuctx, ctx);
- perf_pmu_disable(cpuctx->ctx.pmu);
-
- perf_event_sched_in(cpuctx, ctx, current);
-
- perf_pmu_enable(cpuctx->ctx.pmu);
- perf_ctx_unlock(cpuctx, ctx);
- }
- srcu_read_unlock(&pmus_srcu, idx);
-}
-
-static int perf_resume(void)
-{
- get_online_cpus();
- smp_call_function(perf_pm_resume_cpu, NULL, 1);
- put_online_cpus();
-
- return NOTIFY_OK;
-}
-
-static int perf_suspend(void)
-{
- get_online_cpus();
- smp_call_function(perf_pm_suspend_cpu, NULL, 1);
- put_online_cpus();
-
- return NOTIFY_OK;
-}
-
-static int perf_pm(struct notifier_block *self, unsigned long action, void *ptr)
-{
- switch (action) {
- case PM_POST_HIBERNATION:
- case PM_POST_SUSPEND:
- return perf_resume();
- case PM_HIBERNATION_PREPARE:
- case PM_SUSPEND_PREPARE:
- return perf_suspend();
- default:
- return NOTIFY_DONE;
- }
-}
-
-static struct notifier_block perf_pm_notifier = {
- .notifier_call = perf_pm,
-};
-
void __init perf_event_init(void)
{
int ret;
perf_tp_register();
perf_cpu_notifier(perf_cpu_notify);
register_reboot_notifier(&perf_reboot_notifier);
- register_pm_notifier(&perf_pm_notifier);
ret = init_hw_breakpoint();
WARN(ret, "hw_breakpoint initialization failed with: %d", ret);
#include <linux/interrupt.h>
#include <linux/suspend.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/syscalls.h>
#include <linux/freezer.h>
unsigned long flags;
spin_lock_irqsave(&p->sighand->siglock, flags);
- signal_wake_up(p, 1);
+ signal_wake_up(p, 0);
spin_unlock_irqrestore(&p->sighand->siglock, flags);
}
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/moduleloader.h>
#include <linux/ftrace_event.h>
#include <linux/init.h>
return -ENOEXEC;
}
+ if (!get_modinfo(info, "intree"))
+ add_taint_module(mod, TAINT_OOT_MODULE);
+
if (get_modinfo(info, "staging")) {
add_taint_module(mod, TAINT_CRAP);
printk(KERN_WARNING "%s: module is from the staging directory,"
}
/* This has to be done once we're sure module name is unique. */
- if (!mod->taints || mod->taints == (1U<<TAINT_CRAP))
- dynamic_debug_setup(info.debug, info.num_debug);
+ dynamic_debug_setup(info.debug, info.num_debug);
/* Find duplicate symbols */
err = verify_export_symbols(mod);
module_bug_cleanup(mod);
ddebug:
- if (!mod->taints || mod->taints == (1U<<TAINT_CRAP))
- dynamic_debug_remove(info.debug);
+ dynamic_debug_remove(info.debug);
unlock:
mutex_unlock(&module_mutex);
synchronize_sched();
buf[bx++] = '(';
if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
buf[bx++] = 'P';
+ else if (mod->taints & (1 << TAINT_OOT_MODULE))
+ buf[bx++] = 'O';
if (mod->taints & (1 << TAINT_FORCED_MODULE))
buf[bx++] = 'F';
if (mod->taints & (1 << TAINT_CRAP))
#include <linux/kernel.h>
#include <linux/uaccess.h>
+ #include <linux/export.h>
/*
* locking rule: all changes to constraints or notifiers lists
pm_qos_add_request(req, pm_qos_class, PM_QOS_DEFAULT_VALUE);
filp->private_data = req;
- if (filp->private_data)
- return 0;
+ return 0;
}
return -EPERM;
}
#include <linux/cpu.h>
#include <linux/init.h>
#include <linux/kthread.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/percpu.h>
#include <linux/sched.h>
#include <linux/stop_machine.h>
};
static DEFINE_PER_CPU(struct cpu_stopper, cpu_stopper);
+static bool stop_machine_initialized = false;
static void cpu_stop_init_done(struct cpu_stop_done *done, unsigned int nr_todo)
{
cpu_stop_cpu_callback(&cpu_stop_cpu_notifier, CPU_ONLINE, bcpu);
register_cpu_notifier(&cpu_stop_cpu_notifier);
+ stop_machine_initialized = true;
+
return 0;
}
early_initcall(cpu_stop_init);
.num_threads = num_online_cpus(),
.active_cpus = cpus };
+ if (!stop_machine_initialized) {
+ /*
+ * Handle the case where stop_machine() is called
+ * early in boot before stop_machine() has been
+ * initialized.
+ */
+ unsigned long flags;
+ int ret;
+
+ WARN_ON_ONCE(smdata.num_threads != 1);
+
+ local_irq_save(flags);
+ hard_irq_disable();
+ ret = (*fn)(data);
+ local_irq_restore(flags);
+
+ return ret;
+ }
+
/* Set the initial state and stop all online cpus. */
set_state(&smdata, STOPMACHINE_PREPARE);
return stop_cpus(cpu_online_mask, stop_machine_cpu_stop, &smdata);
* Copyright (C) 1991, 1992 Linus Torvalds
*/
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/mm.h>
#include <linux/utsname.h>
#include <linux/mman.h>
#include <linux/prctl.h>
#include <linux/highuid.h>
#include <linux/fs.h>
+ #include <linux/kmod.h>
#include <linux/perf_event.h>
#include <linux/resource.h>
#include <linux/kernel.h>
memset(u->nodename + len, 0, sizeof(u->nodename) - len);
errno = 0;
}
+ uts_proc_notify(UTS_PROC_HOSTNAME);
up_write(&uts_sem);
return errno;
}
memset(u->domainname + len, 0, sizeof(u->domainname) - len);
errno = 0;
}
+ uts_proc_notify(UTS_PROC_DOMAINNAME);
up_write(&uts_sem);
return errno;
}
* License.
*/
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/uts.h>
#include <linux/utsname.h>
#include <linux/sysctl.h>
+#include <linux/wait.h>
static void *get_uts(ctl_table *table, int write)
{
uts_table.data = get_uts(table, write);
r = proc_dostring(&uts_table,write,buffer,lenp, ppos);
put_uts(table, write, uts_table.data);
+
+ if (write)
+ proc_sys_poll_notify(table->poll);
+
return r;
}
#else
#define proc_do_uts_string NULL
#endif
+static DEFINE_CTL_TABLE_POLL(hostname_poll);
+static DEFINE_CTL_TABLE_POLL(domainname_poll);
+
static struct ctl_table uts_kern_table[] = {
{
.procname = "ostype",
.maxlen = sizeof(init_uts_ns.name.nodename),
.mode = 0644,
.proc_handler = proc_do_uts_string,
+ .poll = &hostname_poll,
},
{
.procname = "domainname",
.maxlen = sizeof(init_uts_ns.name.domainname),
.mode = 0644,
.proc_handler = proc_do_uts_string,
+ .poll = &domainname_poll,
},
{}
};
{}
};
+#ifdef CONFIG_PROC_SYSCTL
+/*
+ * Notify userspace about a change in a certain entry of uts_kern_table,
+ * identified by the parameter proc.
+ */
+void uts_proc_notify(enum uts_proc proc)
+{
+ struct ctl_table *table = &uts_kern_table[proc];
+
+ proc_sys_poll_notify(table->poll);
+}
+#endif
+
static int __init utsname_sysctl_init(void)
{
register_sysctl_table(uts_root_table);
*/
#include <linux/mm.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/swap.h>
#include <linux/gfp.h>
#include <linux/bio.h>
#include <linux/init.h>
#include <linux/hash.h>
#include <linux/highmem.h>
+#include <linux/bootmem.h>
#include <asm/tlbflush.h>
#include <trace/events/block.h>
#ifdef CONFIG_HIGHMEM
static __init int init_emergency_pool(void)
{
- struct sysinfo i;
- si_meminfo(&i);
- si_swapinfo(&i);
-
- if (!i.totalhigh)
+#ifndef CONFIG_MEMORY_HOTPLUG
+ if (max_pfn <= max_low_pfn)
return 0;
+#endif
page_pool = mempool_create_page_pool(POOL_SIZE, 0);
BUG_ON(!page_pool);
*/
#include <linux/mm.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/swap.h>
#include <linux/bio.h>
#include <linux/pagemap.h>
#endif
/**
- * kunmap_high - map a highmem page into memory
+ * kunmap_high - unmap a highmem page into memory
* @page: &struct page to unmap
*
* If ARCH_NEEDS_KMAP_HIGH_GET is not defined then this may be called
#include <linux/bit_spinlock.h>
#include <linux/rcupdate.h>
#include <linux/limits.h>
+ #include <linux/export.h>
#include <linux/mutex.h>
#include <linux/rbtree.h>
#include <linux/slab.h>
struct eventfd_ctx *eventfd;
};
-static void mem_cgroup_threshold(struct mem_cgroup *mem);
-static void mem_cgroup_oom_notify(struct mem_cgroup *mem);
+static void mem_cgroup_threshold(struct mem_cgroup *memcg);
+static void mem_cgroup_oom_notify(struct mem_cgroup *memcg);
/*
* The memory controller data structure. The memory controller controls both
#define MEM_CGROUP_RECLAIM_SOFT_BIT 0x2
#define MEM_CGROUP_RECLAIM_SOFT (1 << MEM_CGROUP_RECLAIM_SOFT_BIT)
-static void mem_cgroup_get(struct mem_cgroup *mem);
-static void mem_cgroup_put(struct mem_cgroup *mem);
-static struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *mem);
-static void drain_all_stock_async(struct mem_cgroup *mem);
+static void mem_cgroup_get(struct mem_cgroup *memcg);
+static void mem_cgroup_put(struct mem_cgroup *memcg);
+static struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg);
+static void drain_all_stock_async(struct mem_cgroup *memcg);
static struct mem_cgroup_per_zone *
-mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid)
+mem_cgroup_zoneinfo(struct mem_cgroup *memcg, int nid, int zid)
{
- return &mem->info.nodeinfo[nid]->zoneinfo[zid];
+ return &memcg->info.nodeinfo[nid]->zoneinfo[zid];
}
-struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *mem)
+struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *memcg)
{
- return &mem->css;
+ return &memcg->css;
}
static struct mem_cgroup_per_zone *
-page_cgroup_zoneinfo(struct mem_cgroup *mem, struct page *page)
+page_cgroup_zoneinfo(struct mem_cgroup *memcg, struct page *page)
{
int nid = page_to_nid(page);
int zid = page_zonenum(page);
- return mem_cgroup_zoneinfo(mem, nid, zid);
+ return mem_cgroup_zoneinfo(memcg, nid, zid);
}
static struct mem_cgroup_tree_per_zone *
}
static void
-__mem_cgroup_insert_exceeded(struct mem_cgroup *mem,
+__mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
struct mem_cgroup_per_zone *mz,
struct mem_cgroup_tree_per_zone *mctz,
unsigned long long new_usage_in_excess)
}
static void
-__mem_cgroup_remove_exceeded(struct mem_cgroup *mem,
+__mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
struct mem_cgroup_per_zone *mz,
struct mem_cgroup_tree_per_zone *mctz)
{
}
static void
-mem_cgroup_remove_exceeded(struct mem_cgroup *mem,
+mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
struct mem_cgroup_per_zone *mz,
struct mem_cgroup_tree_per_zone *mctz)
{
spin_lock(&mctz->lock);
- __mem_cgroup_remove_exceeded(mem, mz, mctz);
+ __mem_cgroup_remove_exceeded(memcg, mz, mctz);
spin_unlock(&mctz->lock);
}
-static void mem_cgroup_update_tree(struct mem_cgroup *mem, struct page *page)
+static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
{
unsigned long long excess;
struct mem_cgroup_per_zone *mz;
* Necessary to update all ancestors when hierarchy is used.
* because their event counter is not touched.
*/
- for (; mem; mem = parent_mem_cgroup(mem)) {
- mz = mem_cgroup_zoneinfo(mem, nid, zid);
- excess = res_counter_soft_limit_excess(&mem->res);
+ for (; memcg; memcg = parent_mem_cgroup(memcg)) {
+ mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ excess = res_counter_soft_limit_excess(&memcg->res);
/*
* We have to update the tree if mz is on RB-tree or
* mem is over its softlimit.
spin_lock(&mctz->lock);
/* if on-tree, remove it */
if (mz->on_tree)
- __mem_cgroup_remove_exceeded(mem, mz, mctz);
+ __mem_cgroup_remove_exceeded(memcg, mz, mctz);
/*
* Insert again. mz->usage_in_excess will be updated.
* If excess is 0, no tree ops.
*/
- __mem_cgroup_insert_exceeded(mem, mz, mctz, excess);
+ __mem_cgroup_insert_exceeded(memcg, mz, mctz, excess);
spin_unlock(&mctz->lock);
}
}
}
-static void mem_cgroup_remove_from_trees(struct mem_cgroup *mem)
+static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
{
int node, zone;
struct mem_cgroup_per_zone *mz;
for_each_node_state(node, N_POSSIBLE) {
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
- mz = mem_cgroup_zoneinfo(mem, node, zone);
+ mz = mem_cgroup_zoneinfo(memcg, node, zone);
mctz = soft_limit_tree_node_zone(node, zone);
- mem_cgroup_remove_exceeded(mem, mz, mctz);
+ mem_cgroup_remove_exceeded(memcg, mz, mctz);
}
}
}
* common workload, threashold and synchonization as vmstat[] should be
* implemented.
*/
-static long mem_cgroup_read_stat(struct mem_cgroup *mem,
+static long mem_cgroup_read_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
long val = 0;
get_online_cpus();
for_each_online_cpu(cpu)
- val += per_cpu(mem->stat->count[idx], cpu);
+ val += per_cpu(memcg->stat->count[idx], cpu);
#ifdef CONFIG_HOTPLUG_CPU
- spin_lock(&mem->pcp_counter_lock);
- val += mem->nocpu_base.count[idx];
- spin_unlock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
+ val += memcg->nocpu_base.count[idx];
+ spin_unlock(&memcg->pcp_counter_lock);
#endif
put_online_cpus();
return val;
}
-static void mem_cgroup_swap_statistics(struct mem_cgroup *mem,
+static void mem_cgroup_swap_statistics(struct mem_cgroup *memcg,
bool charge)
{
int val = (charge) ? 1 : -1;
- this_cpu_add(mem->stat->count[MEM_CGROUP_STAT_SWAPOUT], val);
+ this_cpu_add(memcg->stat->count[MEM_CGROUP_STAT_SWAPOUT], val);
}
-void mem_cgroup_pgfault(struct mem_cgroup *mem, int val)
+void mem_cgroup_pgfault(struct mem_cgroup *memcg, int val)
{
- this_cpu_add(mem->stat->events[MEM_CGROUP_EVENTS_PGFAULT], val);
+ this_cpu_add(memcg->stat->events[MEM_CGROUP_EVENTS_PGFAULT], val);
}
-void mem_cgroup_pgmajfault(struct mem_cgroup *mem, int val)
+void mem_cgroup_pgmajfault(struct mem_cgroup *memcg, int val)
{
- this_cpu_add(mem->stat->events[MEM_CGROUP_EVENTS_PGMAJFAULT], val);
+ this_cpu_add(memcg->stat->events[MEM_CGROUP_EVENTS_PGMAJFAULT], val);
}
-static unsigned long mem_cgroup_read_events(struct mem_cgroup *mem,
+static unsigned long mem_cgroup_read_events(struct mem_cgroup *memcg,
enum mem_cgroup_events_index idx)
{
unsigned long val = 0;
int cpu;
for_each_online_cpu(cpu)
- val += per_cpu(mem->stat->events[idx], cpu);
+ val += per_cpu(memcg->stat->events[idx], cpu);
#ifdef CONFIG_HOTPLUG_CPU
- spin_lock(&mem->pcp_counter_lock);
- val += mem->nocpu_base.events[idx];
- spin_unlock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
+ val += memcg->nocpu_base.events[idx];
+ spin_unlock(&memcg->pcp_counter_lock);
#endif
return val;
}
-static void mem_cgroup_charge_statistics(struct mem_cgroup *mem,
+static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
bool file, int nr_pages)
{
preempt_disable();
if (file)
- __this_cpu_add(mem->stat->count[MEM_CGROUP_STAT_CACHE], nr_pages);
+ __this_cpu_add(memcg->stat->count[MEM_CGROUP_STAT_CACHE],
+ nr_pages);
else
- __this_cpu_add(mem->stat->count[MEM_CGROUP_STAT_RSS], nr_pages);
+ __this_cpu_add(memcg->stat->count[MEM_CGROUP_STAT_RSS],
+ nr_pages);
/* pagein of a big page is an event. So, ignore page size */
if (nr_pages > 0)
- __this_cpu_inc(mem->stat->events[MEM_CGROUP_EVENTS_PGPGIN]);
+ __this_cpu_inc(memcg->stat->events[MEM_CGROUP_EVENTS_PGPGIN]);
else {
- __this_cpu_inc(mem->stat->events[MEM_CGROUP_EVENTS_PGPGOUT]);
+ __this_cpu_inc(memcg->stat->events[MEM_CGROUP_EVENTS_PGPGOUT]);
nr_pages = -nr_pages; /* for event */
}
- __this_cpu_add(mem->stat->events[MEM_CGROUP_EVENTS_COUNT], nr_pages);
+ __this_cpu_add(memcg->stat->events[MEM_CGROUP_EVENTS_COUNT], nr_pages);
preempt_enable();
}
unsigned long
-mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *mem, int nid, int zid,
+mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
unsigned int lru_mask)
{
struct mem_cgroup_per_zone *mz;
enum lru_list l;
unsigned long ret = 0;
- mz = mem_cgroup_zoneinfo(mem, nid, zid);
+ mz = mem_cgroup_zoneinfo(memcg, nid, zid);
for_each_lru(l) {
if (BIT(l) & lru_mask)
}
static unsigned long
-mem_cgroup_node_nr_lru_pages(struct mem_cgroup *mem,
+mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
int nid, unsigned int lru_mask)
{
u64 total = 0;
int zid;
for (zid = 0; zid < MAX_NR_ZONES; zid++)
- total += mem_cgroup_zone_nr_lru_pages(mem, nid, zid, lru_mask);
+ total += mem_cgroup_zone_nr_lru_pages(memcg,
+ nid, zid, lru_mask);
return total;
}
-static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *mem,
+static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask)
{
int nid;
u64 total = 0;
for_each_node_state(nid, N_HIGH_MEMORY)
- total += mem_cgroup_node_nr_lru_pages(mem, nid, lru_mask);
+ total += mem_cgroup_node_nr_lru_pages(memcg, nid, lru_mask);
return total;
}
-static bool __memcg_event_check(struct mem_cgroup *mem, int target)
+static bool __memcg_event_check(struct mem_cgroup *memcg, int target)
{
unsigned long val, next;
- val = this_cpu_read(mem->stat->events[MEM_CGROUP_EVENTS_COUNT]);
- next = this_cpu_read(mem->stat->targets[target]);
+ val = __this_cpu_read(memcg->stat->events[MEM_CGROUP_EVENTS_COUNT]);
+ next = __this_cpu_read(memcg->stat->targets[target]);
/* from time_after() in jiffies.h */
return ((long)next - (long)val < 0);
}
-static void __mem_cgroup_target_update(struct mem_cgroup *mem, int target)
+static void __mem_cgroup_target_update(struct mem_cgroup *memcg, int target)
{
unsigned long val, next;
- val = this_cpu_read(mem->stat->events[MEM_CGROUP_EVENTS_COUNT]);
+ val = __this_cpu_read(memcg->stat->events[MEM_CGROUP_EVENTS_COUNT]);
switch (target) {
case MEM_CGROUP_TARGET_THRESH:
return;
}
- this_cpu_write(mem->stat->targets[target], next);
+ __this_cpu_write(memcg->stat->targets[target], next);
}
/*
* Check events in order.
*
*/
-static void memcg_check_events(struct mem_cgroup *mem, struct page *page)
+static void memcg_check_events(struct mem_cgroup *memcg, struct page *page)
{
+ preempt_disable();
/* threshold event is triggered in finer grain than soft limit */
- if (unlikely(__memcg_event_check(mem, MEM_CGROUP_TARGET_THRESH))) {
- mem_cgroup_threshold(mem);
- __mem_cgroup_target_update(mem, MEM_CGROUP_TARGET_THRESH);
- if (unlikely(__memcg_event_check(mem,
+ if (unlikely(__memcg_event_check(memcg, MEM_CGROUP_TARGET_THRESH))) {
+ mem_cgroup_threshold(memcg);
+ __mem_cgroup_target_update(memcg, MEM_CGROUP_TARGET_THRESH);
+ if (unlikely(__memcg_event_check(memcg,
MEM_CGROUP_TARGET_SOFTLIMIT))) {
- mem_cgroup_update_tree(mem, page);
- __mem_cgroup_target_update(mem,
+ mem_cgroup_update_tree(memcg, page);
+ __mem_cgroup_target_update(memcg,
MEM_CGROUP_TARGET_SOFTLIMIT);
}
#if MAX_NUMNODES > 1
- if (unlikely(__memcg_event_check(mem,
+ if (unlikely(__memcg_event_check(memcg,
MEM_CGROUP_TARGET_NUMAINFO))) {
- atomic_inc(&mem->numainfo_events);
- __mem_cgroup_target_update(mem,
+ atomic_inc(&memcg->numainfo_events);
+ __mem_cgroup_target_update(memcg,
MEM_CGROUP_TARGET_NUMAINFO);
}
#endif
}
+ preempt_enable();
}
static struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont)
struct mem_cgroup *try_get_mem_cgroup_from_mm(struct mm_struct *mm)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
if (!mm)
return NULL;
*/
rcu_read_lock();
do {
- mem = mem_cgroup_from_task(rcu_dereference(mm->owner));
- if (unlikely(!mem))
+ memcg = mem_cgroup_from_task(rcu_dereference(mm->owner));
+ if (unlikely(!memcg))
break;
- } while (!css_tryget(&mem->css));
+ } while (!css_tryget(&memcg->css));
rcu_read_unlock();
- return mem;
+ return memcg;
}
/* The caller has to guarantee "mem" exists before calling this */
-static struct mem_cgroup *mem_cgroup_start_loop(struct mem_cgroup *mem)
+static struct mem_cgroup *mem_cgroup_start_loop(struct mem_cgroup *memcg)
{
struct cgroup_subsys_state *css;
int found;
- if (!mem) /* ROOT cgroup has the smallest ID */
+ if (!memcg) /* ROOT cgroup has the smallest ID */
return root_mem_cgroup; /*css_put/get against root is ignored*/
- if (!mem->use_hierarchy) {
- if (css_tryget(&mem->css))
- return mem;
+ if (!memcg->use_hierarchy) {
+ if (css_tryget(&memcg->css))
+ return memcg;
return NULL;
}
rcu_read_lock();
* searching a memory cgroup which has the smallest ID under given
* ROOT cgroup. (ID >= 1)
*/
- css = css_get_next(&mem_cgroup_subsys, 1, &mem->css, &found);
+ css = css_get_next(&mem_cgroup_subsys, 1, &memcg->css, &found);
if (css && css_tryget(css))
- mem = container_of(css, struct mem_cgroup, css);
+ memcg = container_of(css, struct mem_cgroup, css);
else
- mem = NULL;
+ memcg = NULL;
rcu_read_unlock();
- return mem;
+ return memcg;
}
static struct mem_cgroup *mem_cgroup_get_next(struct mem_cgroup *iter,
for_each_mem_cgroup_tree_cond(iter, NULL, true)
-static inline bool mem_cgroup_is_root(struct mem_cgroup *mem)
+static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
{
- return (mem == root_mem_cgroup);
+ return (memcg == root_mem_cgroup);
}
void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx)
{
- struct mem_cgroup *mem;
+ struct mem_cgroup *memcg;
if (!mm)
return;
rcu_read_lock();
- mem = mem_cgroup_from_task(rcu_dereference(mm->owner));
- if (unlikely(!mem))
+ memcg = mem_cgroup_from_task(rcu_dereference(mm->owner));
+ if (unlikely(!memcg))
goto out;
switch (idx) {
case PGMAJFAULT:
- mem_cgroup_pgmajfault(mem, 1);
+ mem_cgroup_pgmajfault(memcg, 1);
break;
case PGFAULT:
- mem_cgroup_pgfault(mem, 1);
+ mem_cgroup_pgfault(memcg, 1);
break;
default:
BUG();
return;
pc = lookup_page_cgroup(page);
VM_BUG_ON(PageCgroupAcctLRU(pc));
+ /*
+ * putback: charge:
+ * SetPageLRU SetPageCgroupUsed
+ * smp_mb smp_mb
+ * PageCgroupUsed && add to memcg LRU PageLRU && add to memcg LRU
+ *
+ * Ensure that one of the two sides adds the page to the memcg
+ * LRU during a race.
+ */
+ smp_mb();
if (!PageCgroupUsed(pc))
return;
/* Ensure pc->mem_cgroup is visible after reading PCG_USED. */
unsigned long flags;
struct zone *zone = page_zone(page);
struct page_cgroup *pc = lookup_page_cgroup(page);
-
+ /*
+ * putback: charge:
+ * SetPageLRU SetPageCgroupUsed
+ * smp_mb smp_mb
+ * PageCgroupUsed && add to memcg LRU PageLRU && add to memcg LRU
+ *
+ * Ensure that one of the two sides adds the page to the memcg
+ * LRU during a race.
+ */
+ smp_mb();
/* taking care of that the page is added to LRU while we commit it */
if (likely(!PageLRU(page)))
return;
}
/*
- * Checks whether given mem is same or in the root_mem's
+ * Checks whether given mem is same or in the root_mem_cgroup's
* hierarchy subtree
*/
-static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_mem,
- struct mem_cgroup *mem)
+static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
+ struct mem_cgroup *memcg)
{
- if (root_mem != mem) {
- return (root_mem->use_hierarchy &&
- css_is_ancestor(&mem->css, &root_mem->css));
+ if (root_memcg != memcg) {
+ return (root_memcg->use_hierarchy &&
+ css_is_ancestor(&memcg->css, &root_memcg->css));
}
return true;
}
-int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
+int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg)
{
int ret;
struct mem_cgroup *curr = NULL;
if (!curr)
return 0;
/*
- * We should check use_hierarchy of "mem" not "curr". Because checking
+ * We should check use_hierarchy of "memcg" not "curr". Because checking
* use_hierarchy of "curr" here make this function true if hierarchy is
- * enabled in "curr" and "curr" is a child of "mem" in *cgroup*
- * hierarchy(even if use_hierarchy is disabled in "mem").
+ * enabled in "curr" and "curr" is a child of "memcg" in *cgroup*
+ * hierarchy(even if use_hierarchy is disabled in "memcg").
*/
- ret = mem_cgroup_same_or_subtree(mem, curr);
+ ret = mem_cgroup_same_or_subtree(memcg, curr);
css_put(&curr->css);
return ret;
}
-static int calc_inactive_ratio(struct mem_cgroup *memcg, unsigned long *present_pages)
+int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone)
{
- unsigned long active;
+ unsigned long inactive_ratio;
+ int nid = zone_to_nid(zone);
+ int zid = zone_idx(zone);
unsigned long inactive;
+ unsigned long active;
unsigned long gb;
- unsigned long inactive_ratio;
- inactive = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_ANON));
- active = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_ANON));
+ inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
+ BIT(LRU_INACTIVE_ANON));
+ active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
+ BIT(LRU_ACTIVE_ANON));
gb = (inactive + active) >> (30 - PAGE_SHIFT);
if (gb)
else
inactive_ratio = 1;
- if (present_pages) {
- present_pages[0] = inactive;
- present_pages[1] = active;
- }
-
- return inactive_ratio;
+ return inactive * inactive_ratio < active;
}
-int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg)
-{
- unsigned long active;
- unsigned long inactive;
- unsigned long present_pages[2];
- unsigned long inactive_ratio;
-
- inactive_ratio = calc_inactive_ratio(memcg, present_pages);
-
- inactive = present_pages[0];
- active = present_pages[1];
-
- if (inactive * inactive_ratio < active)
- return 1;
-
- return 0;
-}
-
-int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg)
+int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, struct zone *zone)
{
unsigned long active;
unsigned long inactive;
+ int zid = zone_idx(zone);
+ int nid = zone_to_nid(zone);
- inactive = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_FILE));
- active = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_FILE));
+ inactive = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
+ BIT(LRU_INACTIVE_FILE));
+ active = mem_cgroup_zone_nr_lru_pages(memcg, nid, zid,
+ BIT(LRU_ACTIVE_FILE));
return (active > inactive);
}
unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
struct list_head *dst,
unsigned long *scanned, int order,
- int mode, struct zone *z,
+ isolate_mode_t mode,
+ struct zone *z,
struct mem_cgroup *mem_cont,
int active, int file)
{
* Returns the maximum amount of memory @mem can be charged with, in
* pages.
*/
-static unsigned long mem_cgroup_margin(struct mem_cgroup *mem)
+static unsigned long mem_cgroup_margin(struct mem_cgroup *memcg)
{
unsigned long long margin;
- margin = res_counter_margin(&mem->res);
+ margin = res_counter_margin(&memcg->res);
if (do_swap_account)
- margin = min(margin, res_counter_margin(&mem->memsw));
+ margin = min(margin, res_counter_margin(&memcg->memsw));
return margin >> PAGE_SHIFT;
}
return memcg->swappiness;
}
-static void mem_cgroup_start_move(struct mem_cgroup *mem)
+static void mem_cgroup_start_move(struct mem_cgroup *memcg)
{
int cpu;
get_online_cpus();
- spin_lock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
for_each_online_cpu(cpu)
- per_cpu(mem->stat->count[MEM_CGROUP_ON_MOVE], cpu) += 1;
- mem->nocpu_base.count[MEM_CGROUP_ON_MOVE] += 1;
- spin_unlock(&mem->pcp_counter_lock);
+ per_cpu(memcg->stat->count[MEM_CGROUP_ON_MOVE], cpu) += 1;
+ memcg->nocpu_base.count[MEM_CGROUP_ON_MOVE] += 1;
+ spin_unlock(&memcg->pcp_counter_lock);
put_online_cpus();
synchronize_rcu();
}
-static void mem_cgroup_end_move(struct mem_cgroup *mem)
+static void mem_cgroup_end_move(struct mem_cgroup *memcg)
{
int cpu;
- if (!mem)
+ if (!memcg)
return;
get_online_cpus();
- spin_lock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
for_each_online_cpu(cpu)
- per_cpu(mem->stat->count[MEM_CGROUP_ON_MOVE], cpu) -= 1;
- mem->nocpu_base.count[MEM_CGROUP_ON_MOVE] -= 1;
- spin_unlock(&mem->pcp_counter_lock);
+ per_cpu(memcg->stat->count[MEM_CGROUP_ON_MOVE], cpu) -= 1;
+ memcg->nocpu_base.count[MEM_CGROUP_ON_MOVE] -= 1;
+ spin_unlock(&memcg->pcp_counter_lock);
put_online_cpus();
}
/*
* waiting at hith-memory prressure caused by "move".
*/
-static bool mem_cgroup_stealed(struct mem_cgroup *mem)
+static bool mem_cgroup_stealed(struct mem_cgroup *memcg)
{
VM_BUG_ON(!rcu_read_lock_held());
- return this_cpu_read(mem->stat->count[MEM_CGROUP_ON_MOVE]) > 0;
+ return this_cpu_read(memcg->stat->count[MEM_CGROUP_ON_MOVE]) > 0;
}
-static bool mem_cgroup_under_move(struct mem_cgroup *mem)
+static bool mem_cgroup_under_move(struct mem_cgroup *memcg)
{
struct mem_cgroup *from;
struct mem_cgroup *to;
if (!from)
goto unlock;
- ret = mem_cgroup_same_or_subtree(mem, from)
- || mem_cgroup_same_or_subtree(mem, to);
+ ret = mem_cgroup_same_or_subtree(memcg, from)
+ || mem_cgroup_same_or_subtree(memcg, to);
unlock:
spin_unlock(&mc.lock);
return ret;
}
-static bool mem_cgroup_wait_acct_move(struct mem_cgroup *mem)
+static bool mem_cgroup_wait_acct_move(struct mem_cgroup *memcg)
{
if (mc.moving_task && current != mc.moving_task) {
- if (mem_cgroup_under_move(mem)) {
+ if (mem_cgroup_under_move(memcg)) {
DEFINE_WAIT(wait);
prepare_to_wait(&mc.waitq, &wait, TASK_INTERRUPTIBLE);
/* moving charge context might have finished. */
* This function returns the number of memcg under hierarchy tree. Returns
* 1(self count) if no children.
*/
-static int mem_cgroup_count_children(struct mem_cgroup *mem)
+static int mem_cgroup_count_children(struct mem_cgroup *memcg)
{
int num = 0;
struct mem_cgroup *iter;
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
num++;
return num;
}
* that to reclaim free pages from.
*/
static struct mem_cgroup *
-mem_cgroup_select_victim(struct mem_cgroup *root_mem)
+mem_cgroup_select_victim(struct mem_cgroup *root_memcg)
{
struct mem_cgroup *ret = NULL;
struct cgroup_subsys_state *css;
int nextid, found;
- if (!root_mem->use_hierarchy) {
- css_get(&root_mem->css);
- ret = root_mem;
+ if (!root_memcg->use_hierarchy) {
+ css_get(&root_memcg->css);
+ ret = root_memcg;
}
while (!ret) {
rcu_read_lock();
- nextid = root_mem->last_scanned_child + 1;
- css = css_get_next(&mem_cgroup_subsys, nextid, &root_mem->css,
+ nextid = root_memcg->last_scanned_child + 1;
+ css = css_get_next(&mem_cgroup_subsys, nextid, &root_memcg->css,
&found);
if (css && css_tryget(css))
ret = container_of(css, struct mem_cgroup, css);
/* Updates scanning parameter */
if (!css) {
/* this means start scan from ID:1 */
- root_mem->last_scanned_child = 0;
+ root_memcg->last_scanned_child = 0;
} else
- root_mem->last_scanned_child = found;
+ root_memcg->last_scanned_child = found;
}
return ret;
* reclaimable pages on a node. Returns true if there are any reclaimable
* pages in the node.
*/
-static bool test_mem_cgroup_node_reclaimable(struct mem_cgroup *mem,
+static bool test_mem_cgroup_node_reclaimable(struct mem_cgroup *memcg,
int nid, bool noswap)
{
- if (mem_cgroup_node_nr_lru_pages(mem, nid, LRU_ALL_FILE))
+ if (mem_cgroup_node_nr_lru_pages(memcg, nid, LRU_ALL_FILE))
return true;
if (noswap || !total_swap_pages)
return false;
- if (mem_cgroup_node_nr_lru_pages(mem, nid, LRU_ALL_ANON))
+ if (mem_cgroup_node_nr_lru_pages(memcg, nid, LRU_ALL_ANON))
return true;
return false;
* nodes based on the zonelist. So update the list loosely once per 10 secs.
*
*/
-static void mem_cgroup_may_update_nodemask(struct mem_cgroup *mem)
+static void mem_cgroup_may_update_nodemask(struct mem_cgroup *memcg)
{
int nid;
/*
* numainfo_events > 0 means there was at least NUMAINFO_EVENTS_TARGET
* pagein/pageout changes since the last update.
*/
- if (!atomic_read(&mem->numainfo_events))
+ if (!atomic_read(&memcg->numainfo_events))
return;
- if (atomic_inc_return(&mem->numainfo_updating) > 1)
+ if (atomic_inc_return(&memcg->numainfo_updating) > 1)
return;
/* make a nodemask where this memcg uses memory from */
- mem->scan_nodes = node_states[N_HIGH_MEMORY];
+ memcg->scan_nodes = node_states[N_HIGH_MEMORY];
for_each_node_mask(nid, node_states[N_HIGH_MEMORY]) {
- if (!test_mem_cgroup_node_reclaimable(mem, nid, false))
- node_clear(nid, mem->scan_nodes);
+ if (!test_mem_cgroup_node_reclaimable(memcg, nid, false))
+ node_clear(nid, memcg->scan_nodes);
}
- atomic_set(&mem->numainfo_events, 0);
- atomic_set(&mem->numainfo_updating, 0);
+ atomic_set(&memcg->numainfo_events, 0);
+ atomic_set(&memcg->numainfo_updating, 0);
}
/*
*
* Now, we use round-robin. Better algorithm is welcomed.
*/
-int mem_cgroup_select_victim_node(struct mem_cgroup *mem)
+int mem_cgroup_select_victim_node(struct mem_cgroup *memcg)
{
int node;
- mem_cgroup_may_update_nodemask(mem);
- node = mem->last_scanned_node;
+ mem_cgroup_may_update_nodemask(memcg);
+ node = memcg->last_scanned_node;
- node = next_node(node, mem->scan_nodes);
+ node = next_node(node, memcg->scan_nodes);
if (node == MAX_NUMNODES)
- node = first_node(mem->scan_nodes);
+ node = first_node(memcg->scan_nodes);
/*
* We call this when we hit limit, not when pages are added to LRU.
* No LRU may hold pages because all pages are UNEVICTABLE or
if (unlikely(node == MAX_NUMNODES))
node = numa_node_id();
- mem->last_scanned_node = node;
+ memcg->last_scanned_node = node;
return node;
}
* unused nodes. But scan_nodes is lazily updated and may not cotain
* enough new information. We need to do double check.
*/
-bool mem_cgroup_reclaimable(struct mem_cgroup *mem, bool noswap)
+bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
{
int nid;
* quick check...making use of scan_node.
* We can skip unused nodes.
*/
- if (!nodes_empty(mem->scan_nodes)) {
- for (nid = first_node(mem->scan_nodes);
+ if (!nodes_empty(memcg->scan_nodes)) {
+ for (nid = first_node(memcg->scan_nodes);
nid < MAX_NUMNODES;
- nid = next_node(nid, mem->scan_nodes)) {
+ nid = next_node(nid, memcg->scan_nodes)) {
- if (test_mem_cgroup_node_reclaimable(mem, nid, noswap))
+ if (test_mem_cgroup_node_reclaimable(memcg, nid, noswap))
return true;
}
}
* Check rest of nodes.
*/
for_each_node_state(nid, N_HIGH_MEMORY) {
- if (node_isset(nid, mem->scan_nodes))
+ if (node_isset(nid, memcg->scan_nodes))
continue;
- if (test_mem_cgroup_node_reclaimable(mem, nid, noswap))
+ if (test_mem_cgroup_node_reclaimable(memcg, nid, noswap))
return true;
}
return false;
}
#else
-int mem_cgroup_select_victim_node(struct mem_cgroup *mem)
+int mem_cgroup_select_victim_node(struct mem_cgroup *memcg)
{
return 0;
}
-bool mem_cgroup_reclaimable(struct mem_cgroup *mem, bool noswap)
+bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
{
- return test_mem_cgroup_node_reclaimable(mem, 0, noswap);
+ return test_mem_cgroup_node_reclaimable(memcg, 0, noswap);
}
#endif
* we reclaimed from, so that we don't end up penalizing one child extensively
* based on its position in the children list.
*
- * root_mem is the original ancestor that we've been reclaim from.
+ * root_memcg is the original ancestor that we've been reclaim from.
*
- * We give up and return to the caller when we visit root_mem twice.
+ * We give up and return to the caller when we visit root_memcg twice.
* (other groups can be removed while we're walking....)
*
* If shrink==true, for avoiding to free too much, this returns immedieately.
*/
-static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem,
+static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_memcg,
struct zone *zone,
gfp_t gfp_mask,
unsigned long reclaim_options,
unsigned long excess;
unsigned long nr_scanned;
- excess = res_counter_soft_limit_excess(&root_mem->res) >> PAGE_SHIFT;
+ excess = res_counter_soft_limit_excess(&root_memcg->res) >> PAGE_SHIFT;
/* If memsw_is_minimum==1, swap-out is of-no-use. */
- if (!check_soft && !shrink && root_mem->memsw_is_minimum)
+ if (!check_soft && !shrink && root_memcg->memsw_is_minimum)
noswap = true;
while (1) {
- victim = mem_cgroup_select_victim(root_mem);
- if (victim == root_mem) {
+ victim = mem_cgroup_select_victim(root_memcg);
+ if (victim == root_memcg) {
loop++;
/*
* We are not draining per cpu cached charges during
* charges will not give any.
*/
if (!check_soft && loop >= 1)
- drain_all_stock_async(root_mem);
+ drain_all_stock_async(root_memcg);
if (loop >= 2) {
/*
* If we have not been able to reclaim
return ret;
total += ret;
if (check_soft) {
- if (!res_counter_soft_limit_excess(&root_mem->res))
+ if (!res_counter_soft_limit_excess(&root_memcg->res))
return total;
- } else if (mem_cgroup_margin(root_mem))
+ } else if (mem_cgroup_margin(root_memcg))
return total;
}
return total;
* If someone is running, return false.
* Has to be called with memcg_oom_lock
*/
-static bool mem_cgroup_oom_lock(struct mem_cgroup *mem)
+static bool mem_cgroup_oom_lock(struct mem_cgroup *memcg)
{
struct mem_cgroup *iter, *failed = NULL;
bool cond = true;
- for_each_mem_cgroup_tree_cond(iter, mem, cond) {
+ for_each_mem_cgroup_tree_cond(iter, memcg, cond) {
if (iter->oom_lock) {
/*
* this subtree of our hierarchy is already locked
* what we set up to the failing subtree
*/
cond = true;
- for_each_mem_cgroup_tree_cond(iter, mem, cond) {
+ for_each_mem_cgroup_tree_cond(iter, memcg, cond) {
if (iter == failed) {
cond = false;
continue;
/*
* Has to be called with memcg_oom_lock
*/
-static int mem_cgroup_oom_unlock(struct mem_cgroup *mem)
+static int mem_cgroup_oom_unlock(struct mem_cgroup *memcg)
{
struct mem_cgroup *iter;
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
iter->oom_lock = false;
return 0;
}
-static void mem_cgroup_mark_under_oom(struct mem_cgroup *mem)
+static void mem_cgroup_mark_under_oom(struct mem_cgroup *memcg)
{
struct mem_cgroup *iter;
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
atomic_inc(&iter->under_oom);
}
-static void mem_cgroup_unmark_under_oom(struct mem_cgroup *mem)
+static void mem_cgroup_unmark_under_oom(struct mem_cgroup *memcg)
{
struct mem_cgroup *iter;
* mem_cgroup_oom_lock() may not be called. We have to use
* atomic_add_unless() here.
*/
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
atomic_add_unless(&iter->under_oom, -1, 0);
}
static int memcg_oom_wake_function(wait_queue_t *wait,
unsigned mode, int sync, void *arg)
{
- struct mem_cgroup *wake_mem = (struct mem_cgroup *)arg,
- *oom_wait_mem;
+ struct mem_cgroup *wake_memcg = (struct mem_cgroup *)arg,
+ *oom_wait_memcg;
struct oom_wait_info *oom_wait_info;
oom_wait_info = container_of(wait, struct oom_wait_info, wait);
- oom_wait_mem = oom_wait_info->mem;
+ oom_wait_memcg = oom_wait_info->mem;
/*
* Both of oom_wait_info->mem and wake_mem are stable under us.
* Then we can use css_is_ancestor without taking care of RCU.
*/
- if (!mem_cgroup_same_or_subtree(oom_wait_mem, wake_mem)
- && !mem_cgroup_same_or_subtree(wake_mem, oom_wait_mem))
+ if (!mem_cgroup_same_or_subtree(oom_wait_memcg, wake_memcg)
+ && !mem_cgroup_same_or_subtree(wake_memcg, oom_wait_memcg))
return 0;
return autoremove_wake_function(wait, mode, sync, arg);
}
-static void memcg_wakeup_oom(struct mem_cgroup *mem)
+static void memcg_wakeup_oom(struct mem_cgroup *memcg)
{
- /* for filtering, pass "mem" as argument. */
- __wake_up(&memcg_oom_waitq, TASK_NORMAL, 0, mem);
+ /* for filtering, pass "memcg" as argument. */
+ __wake_up(&memcg_oom_waitq, TASK_NORMAL, 0, memcg);
}
-static void memcg_oom_recover(struct mem_cgroup *mem)
+static void memcg_oom_recover(struct mem_cgroup *memcg)
{
- if (mem && atomic_read(&mem->under_oom))
- memcg_wakeup_oom(mem);
+ if (memcg && atomic_read(&memcg->under_oom))
+ memcg_wakeup_oom(memcg);
}
/*
* try to call OOM killer. returns false if we should exit memory-reclaim loop.
*/
-bool mem_cgroup_handle_oom(struct mem_cgroup *mem, gfp_t mask)
+bool mem_cgroup_handle_oom(struct mem_cgroup *memcg, gfp_t mask)
{
struct oom_wait_info owait;
bool locked, need_to_kill;
- owait.mem = mem;
+ owait.mem = memcg;
owait.wait.flags = 0;
owait.wait.func = memcg_oom_wake_function;
owait.wait.private = current;
INIT_LIST_HEAD(&owait.wait.task_list);
need_to_kill = true;
- mem_cgroup_mark_under_oom(mem);
+ mem_cgroup_mark_under_oom(memcg);
- /* At first, try to OOM lock hierarchy under mem.*/
+ /* At first, try to OOM lock hierarchy under memcg.*/
spin_lock(&memcg_oom_lock);
- locked = mem_cgroup_oom_lock(mem);
+ locked = mem_cgroup_oom_lock(memcg);
/*
* Even if signal_pending(), we can't quit charge() loop without
* accounting. So, UNINTERRUPTIBLE is appropriate. But SIGKILL
* under OOM is always welcomed, use TASK_KILLABLE here.
*/
prepare_to_wait(&memcg_oom_waitq, &owait.wait, TASK_KILLABLE);
- if (!locked || mem->oom_kill_disable)
+ if (!locked || memcg->oom_kill_disable)
need_to_kill = false;
if (locked)
- mem_cgroup_oom_notify(mem);
+ mem_cgroup_oom_notify(memcg);
spin_unlock(&memcg_oom_lock);
if (need_to_kill) {
finish_wait(&memcg_oom_waitq, &owait.wait);
- mem_cgroup_out_of_memory(mem, mask);
+ mem_cgroup_out_of_memory(memcg, mask);
} else {
schedule();
finish_wait(&memcg_oom_waitq, &owait.wait);
}
spin_lock(&memcg_oom_lock);
if (locked)
- mem_cgroup_oom_unlock(mem);
- memcg_wakeup_oom(mem);
+ mem_cgroup_oom_unlock(memcg);
+ memcg_wakeup_oom(memcg);
spin_unlock(&memcg_oom_lock);
- mem_cgroup_unmark_under_oom(mem);
+ mem_cgroup_unmark_under_oom(memcg);
if (test_thread_flag(TIF_MEMDIE) || fatal_signal_pending(current))
return false;
/* Give chance to dying process */
- schedule_timeout(1);
+ schedule_timeout_uninterruptible(1);
return true;
}
void mem_cgroup_update_page_stat(struct page *page,
enum mem_cgroup_page_stat_item idx, int val)
{
- struct mem_cgroup *mem;
+ struct mem_cgroup *memcg;
struct page_cgroup *pc = lookup_page_cgroup(page);
bool need_unlock = false;
unsigned long uninitialized_var(flags);
return;
rcu_read_lock();
- mem = pc->mem_cgroup;
- if (unlikely(!mem || !PageCgroupUsed(pc)))
+ memcg = pc->mem_cgroup;
+ if (unlikely(!memcg || !PageCgroupUsed(pc)))
goto out;
/* pc->mem_cgroup is unstable ? */
- if (unlikely(mem_cgroup_stealed(mem)) || PageTransHuge(page)) {
+ if (unlikely(mem_cgroup_stealed(memcg)) || PageTransHuge(page)) {
/* take a lock against to access pc->mem_cgroup */
move_lock_page_cgroup(pc, &flags);
need_unlock = true;
- mem = pc->mem_cgroup;
- if (!mem || !PageCgroupUsed(pc))
+ memcg = pc->mem_cgroup;
+ if (!memcg || !PageCgroupUsed(pc))
goto out;
}
BUG();
}
- this_cpu_add(mem->stat->count[idx], val);
+ this_cpu_add(memcg->stat->count[idx], val);
out:
if (unlikely(need_unlock))
* cgroup which is not current target, returns false. This stock will be
* refilled.
*/
-static bool consume_stock(struct mem_cgroup *mem)
+static bool consume_stock(struct mem_cgroup *memcg)
{
struct memcg_stock_pcp *stock;
bool ret = true;
stock = &get_cpu_var(memcg_stock);
- if (mem == stock->cached && stock->nr_pages)
+ if (memcg == stock->cached && stock->nr_pages)
stock->nr_pages--;
else /* need to call res_counter_charge */
ret = false;
* Cache charges(val) which is from res_counter, to local per_cpu area.
* This will be consumed by consume_stock() function, later.
*/
-static void refill_stock(struct mem_cgroup *mem, unsigned int nr_pages)
+static void refill_stock(struct mem_cgroup *memcg, unsigned int nr_pages)
{
struct memcg_stock_pcp *stock = &get_cpu_var(memcg_stock);
- if (stock->cached != mem) { /* reset if necessary */
+ if (stock->cached != memcg) { /* reset if necessary */
drain_stock(stock);
- stock->cached = mem;
+ stock->cached = memcg;
}
stock->nr_pages += nr_pages;
put_cpu_var(memcg_stock);
}
/*
- * Drains all per-CPU charge caches for given root_mem resp. subtree
+ * Drains all per-CPU charge caches for given root_memcg resp. subtree
* of the hierarchy under it. sync flag says whether we should block
* until the work is done.
*/
-static void drain_all_stock(struct mem_cgroup *root_mem, bool sync)
+static void drain_all_stock(struct mem_cgroup *root_memcg, bool sync)
{
int cpu, curcpu;
curcpu = get_cpu();
for_each_online_cpu(cpu) {
struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);
- struct mem_cgroup *mem;
+ struct mem_cgroup *memcg;
- mem = stock->cached;
- if (!mem || !stock->nr_pages)
+ memcg = stock->cached;
+ if (!memcg || !stock->nr_pages)
continue;
- if (!mem_cgroup_same_or_subtree(root_mem, mem))
+ if (!mem_cgroup_same_or_subtree(root_memcg, memcg))
continue;
if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags)) {
if (cpu == curcpu)
* expects some charges will be back to res_counter later but cannot wait for
* it.
*/
-static void drain_all_stock_async(struct mem_cgroup *root_mem)
+static void drain_all_stock_async(struct mem_cgroup *root_memcg)
{
/*
* If someone calls draining, avoid adding more kworker runs.
*/
if (!mutex_trylock(&percpu_charge_mutex))
return;
- drain_all_stock(root_mem, false);
+ drain_all_stock(root_memcg, false);
mutex_unlock(&percpu_charge_mutex);
}
/* This is a synchronous drain interface. */
-static void drain_all_stock_sync(struct mem_cgroup *root_mem)
+static void drain_all_stock_sync(struct mem_cgroup *root_memcg)
{
/* called when force_empty is called */
mutex_lock(&percpu_charge_mutex);
- drain_all_stock(root_mem, true);
+ drain_all_stock(root_memcg, true);
mutex_unlock(&percpu_charge_mutex);
}
* This function drains percpu counter value from DEAD cpu and
* move it to local cpu. Note that this function can be preempted.
*/
-static void mem_cgroup_drain_pcp_counter(struct mem_cgroup *mem, int cpu)
+static void mem_cgroup_drain_pcp_counter(struct mem_cgroup *memcg, int cpu)
{
int i;
- spin_lock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
for (i = 0; i < MEM_CGROUP_STAT_DATA; i++) {
- long x = per_cpu(mem->stat->count[i], cpu);
+ long x = per_cpu(memcg->stat->count[i], cpu);
- per_cpu(mem->stat->count[i], cpu) = 0;
- mem->nocpu_base.count[i] += x;
+ per_cpu(memcg->stat->count[i], cpu) = 0;
+ memcg->nocpu_base.count[i] += x;
}
for (i = 0; i < MEM_CGROUP_EVENTS_NSTATS; i++) {
- unsigned long x = per_cpu(mem->stat->events[i], cpu);
+ unsigned long x = per_cpu(memcg->stat->events[i], cpu);
- per_cpu(mem->stat->events[i], cpu) = 0;
- mem->nocpu_base.events[i] += x;
+ per_cpu(memcg->stat->events[i], cpu) = 0;
+ memcg->nocpu_base.events[i] += x;
}
/* need to clear ON_MOVE value, works as a kind of lock. */
- per_cpu(mem->stat->count[MEM_CGROUP_ON_MOVE], cpu) = 0;
- spin_unlock(&mem->pcp_counter_lock);
+ per_cpu(memcg->stat->count[MEM_CGROUP_ON_MOVE], cpu) = 0;
+ spin_unlock(&memcg->pcp_counter_lock);
}
-static void synchronize_mem_cgroup_on_move(struct mem_cgroup *mem, int cpu)
+static void synchronize_mem_cgroup_on_move(struct mem_cgroup *memcg, int cpu)
{
int idx = MEM_CGROUP_ON_MOVE;
- spin_lock(&mem->pcp_counter_lock);
- per_cpu(mem->stat->count[idx], cpu) = mem->nocpu_base.count[idx];
- spin_unlock(&mem->pcp_counter_lock);
+ spin_lock(&memcg->pcp_counter_lock);
+ per_cpu(memcg->stat->count[idx], cpu) = memcg->nocpu_base.count[idx];
+ spin_unlock(&memcg->pcp_counter_lock);
}
static int __cpuinit memcg_cpu_hotplug_callback(struct notifier_block *nb,
CHARGE_OOM_DIE, /* the current is killed because of OOM */
};
-static int mem_cgroup_do_charge(struct mem_cgroup *mem, gfp_t gfp_mask,
+static int mem_cgroup_do_charge(struct mem_cgroup *memcg, gfp_t gfp_mask,
unsigned int nr_pages, bool oom_check)
{
unsigned long csize = nr_pages * PAGE_SIZE;
unsigned long flags = 0;
int ret;
- ret = res_counter_charge(&mem->res, csize, &fail_res);
+ ret = res_counter_charge(&memcg->res, csize, &fail_res);
if (likely(!ret)) {
if (!do_swap_account)
return CHARGE_OK;
- ret = res_counter_charge(&mem->memsw, csize, &fail_res);
+ ret = res_counter_charge(&memcg->memsw, csize, &fail_res);
if (likely(!ret))
return CHARGE_OK;
- res_counter_uncharge(&mem->res, csize);
+ res_counter_uncharge(&memcg->res, csize);
mem_over_limit = mem_cgroup_from_res_counter(fail_res, memsw);
flags |= MEM_CGROUP_RECLAIM_NOSWAP;
} else
static int __mem_cgroup_try_charge(struct mm_struct *mm,
gfp_t gfp_mask,
unsigned int nr_pages,
- struct mem_cgroup **memcg,
+ struct mem_cgroup **ptr,
bool oom)
{
unsigned int batch = max(CHARGE_BATCH, nr_pages);
int nr_oom_retries = MEM_CGROUP_RECLAIM_RETRIES;
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
int ret;
/*
* thread group leader migrates. It's possible that mm is not
* set, if so charge the init_mm (happens for pagecache usage).
*/
- if (!*memcg && !mm)
+ if (!*ptr && !mm)
goto bypass;
again:
- if (*memcg) { /* css should be a valid one */
- mem = *memcg;
- VM_BUG_ON(css_is_removed(&mem->css));
- if (mem_cgroup_is_root(mem))
+ if (*ptr) { /* css should be a valid one */
+ memcg = *ptr;
+ VM_BUG_ON(css_is_removed(&memcg->css));
+ if (mem_cgroup_is_root(memcg))
goto done;
- if (nr_pages == 1 && consume_stock(mem))
+ if (nr_pages == 1 && consume_stock(memcg))
goto done;
- css_get(&mem->css);
+ css_get(&memcg->css);
} else {
struct task_struct *p;
p = rcu_dereference(mm->owner);
/*
* Because we don't have task_lock(), "p" can exit.
- * In that case, "mem" can point to root or p can be NULL with
+ * In that case, "memcg" can point to root or p can be NULL with
* race with swapoff. Then, we have small risk of mis-accouning.
* But such kind of mis-account by race always happens because
* we don't have cgroup_mutex(). It's overkill and we allo that
* (*) swapoff at el will charge against mm-struct not against
* task-struct. So, mm->owner can be NULL.
*/
- mem = mem_cgroup_from_task(p);
- if (!mem || mem_cgroup_is_root(mem)) {
+ memcg = mem_cgroup_from_task(p);
+ if (!memcg || mem_cgroup_is_root(memcg)) {
rcu_read_unlock();
goto done;
}
- if (nr_pages == 1 && consume_stock(mem)) {
+ if (nr_pages == 1 && consume_stock(memcg)) {
/*
* It seems dagerous to access memcg without css_get().
* But considering how consume_stok works, it's not
goto done;
}
/* after here, we may be blocked. we need to get refcnt */
- if (!css_tryget(&mem->css)) {
+ if (!css_tryget(&memcg->css)) {
rcu_read_unlock();
goto again;
}
/* If killed, bypass charge */
if (fatal_signal_pending(current)) {
- css_put(&mem->css);
+ css_put(&memcg->css);
goto bypass;
}
nr_oom_retries = MEM_CGROUP_RECLAIM_RETRIES;
}
- ret = mem_cgroup_do_charge(mem, gfp_mask, batch, oom_check);
+ ret = mem_cgroup_do_charge(memcg, gfp_mask, batch, oom_check);
switch (ret) {
case CHARGE_OK:
break;
case CHARGE_RETRY: /* not in OOM situation but retry */
batch = nr_pages;
- css_put(&mem->css);
- mem = NULL;
+ css_put(&memcg->css);
+ memcg = NULL;
goto again;
case CHARGE_WOULDBLOCK: /* !__GFP_WAIT */
- css_put(&mem->css);
+ css_put(&memcg->css);
goto nomem;
case CHARGE_NOMEM: /* OOM routine works */
if (!oom) {
- css_put(&mem->css);
+ css_put(&memcg->css);
goto nomem;
}
/* If oom, we never return -ENOMEM */
nr_oom_retries--;
break;
case CHARGE_OOM_DIE: /* Killed by OOM Killer */
- css_put(&mem->css);
+ css_put(&memcg->css);
goto bypass;
}
} while (ret != CHARGE_OK);
if (batch > nr_pages)
- refill_stock(mem, batch - nr_pages);
- css_put(&mem->css);
+ refill_stock(memcg, batch - nr_pages);
+ css_put(&memcg->css);
done:
- *memcg = mem;
+ *ptr = memcg;
return 0;
nomem:
- *memcg = NULL;
+ *ptr = NULL;
return -ENOMEM;
bypass:
- *memcg = NULL;
+ *ptr = NULL;
return 0;
}
* This function is for that and do uncharge, put css's refcnt.
* gotten by try_charge().
*/
-static void __mem_cgroup_cancel_charge(struct mem_cgroup *mem,
+static void __mem_cgroup_cancel_charge(struct mem_cgroup *memcg,
unsigned int nr_pages)
{
- if (!mem_cgroup_is_root(mem)) {
+ if (!mem_cgroup_is_root(memcg)) {
unsigned long bytes = nr_pages * PAGE_SIZE;
- res_counter_uncharge(&mem->res, bytes);
+ res_counter_uncharge(&memcg->res, bytes);
if (do_swap_account)
- res_counter_uncharge(&mem->memsw, bytes);
+ res_counter_uncharge(&memcg->memsw, bytes);
}
}
struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
struct page_cgroup *pc;
unsigned short id;
swp_entry_t ent;
pc = lookup_page_cgroup(page);
lock_page_cgroup(pc);
if (PageCgroupUsed(pc)) {
- mem = pc->mem_cgroup;
- if (mem && !css_tryget(&mem->css))
- mem = NULL;
+ memcg = pc->mem_cgroup;
+ if (memcg && !css_tryget(&memcg->css))
+ memcg = NULL;
} else if (PageSwapCache(page)) {
ent.val = page_private(page);
id = lookup_swap_cgroup(ent);
rcu_read_lock();
- mem = mem_cgroup_lookup(id);
- if (mem && !css_tryget(&mem->css))
- mem = NULL;
+ memcg = mem_cgroup_lookup(id);
+ if (memcg && !css_tryget(&memcg->css))
+ memcg = NULL;
rcu_read_unlock();
}
unlock_page_cgroup(pc);
- return mem;
+ return memcg;
}
-static void __mem_cgroup_commit_charge(struct mem_cgroup *mem,
+static void __mem_cgroup_commit_charge(struct mem_cgroup *memcg,
struct page *page,
unsigned int nr_pages,
struct page_cgroup *pc,
lock_page_cgroup(pc);
if (unlikely(PageCgroupUsed(pc))) {
unlock_page_cgroup(pc);
- __mem_cgroup_cancel_charge(mem, nr_pages);
+ __mem_cgroup_cancel_charge(memcg, nr_pages);
return;
}
/*
* we don't need page_cgroup_lock about tail pages, becase they are not
* accessed by any other context at this point.
*/
- pc->mem_cgroup = mem;
+ pc->mem_cgroup = memcg;
/*
* We access a page_cgroup asynchronously without lock_page_cgroup().
* Especially when a page_cgroup is taken from a page, pc->mem_cgroup
break;
}
- mem_cgroup_charge_statistics(mem, PageCgroupCache(pc), nr_pages);
+ mem_cgroup_charge_statistics(memcg, PageCgroupCache(pc), nr_pages);
unlock_page_cgroup(pc);
/*
* "charge_statistics" updated event counter. Then, check it.
* Insert ancestor (and ancestor's ancestors), to softlimit RB-tree.
* if they exceeds softlimit.
*/
- memcg_check_events(mem, page);
+ memcg_check_events(memcg, page);
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask, enum charge_type ctype)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
unsigned int nr_pages = 1;
struct page_cgroup *pc;
bool oom = true;
pc = lookup_page_cgroup(page);
BUG_ON(!pc); /* XXX: remove this and move pc lookup into commit */
- ret = __mem_cgroup_try_charge(mm, gfp_mask, nr_pages, &mem, oom);
- if (ret || !mem)
+ ret = __mem_cgroup_try_charge(mm, gfp_mask, nr_pages, &memcg, oom);
+ if (ret || !memcg)
return ret;
- __mem_cgroup_commit_charge(mem, page, nr_pages, pc, ctype);
+ __mem_cgroup_commit_charge(memcg, page, nr_pages, pc, ctype);
return 0;
}
enum charge_type ctype);
static void
-__mem_cgroup_commit_charge_lrucare(struct page *page, struct mem_cgroup *mem,
+__mem_cgroup_commit_charge_lrucare(struct page *page, struct mem_cgroup *memcg,
enum charge_type ctype)
{
struct page_cgroup *pc = lookup_page_cgroup(page);
* LRU. Take care of it.
*/
mem_cgroup_lru_del_before_commit(page);
- __mem_cgroup_commit_charge(mem, page, 1, pc, ctype);
+ __mem_cgroup_commit_charge(memcg, page, 1, pc, ctype);
mem_cgroup_lru_add_after_commit(page);
return;
}
int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
int ret;
if (mem_cgroup_disabled())
mm = &init_mm;
if (page_is_file_cache(page)) {
- ret = __mem_cgroup_try_charge(mm, gfp_mask, 1, &mem, true);
- if (ret || !mem)
+ ret = __mem_cgroup_try_charge(mm, gfp_mask, 1, &memcg, true);
+ if (ret || !memcg)
return ret;
/*
* put that would remove them from the LRU list, make
* sure that they get relinked properly.
*/
- __mem_cgroup_commit_charge_lrucare(page, mem,
+ __mem_cgroup_commit_charge_lrucare(page, memcg,
MEM_CGROUP_CHARGE_TYPE_CACHE);
return ret;
}
/* shmem */
if (PageSwapCache(page)) {
- ret = mem_cgroup_try_charge_swapin(mm, page, gfp_mask, &mem);
+ ret = mem_cgroup_try_charge_swapin(mm, page, gfp_mask, &memcg);
if (!ret)
- __mem_cgroup_commit_charge_swapin(page, mem,
+ __mem_cgroup_commit_charge_swapin(page, memcg,
MEM_CGROUP_CHARGE_TYPE_SHMEM);
} else
ret = mem_cgroup_charge_common(page, mm, gfp_mask,
struct page *page,
gfp_t mask, struct mem_cgroup **ptr)
{
- struct mem_cgroup *mem;
+ struct mem_cgroup *memcg;
int ret;
*ptr = NULL;
*/
if (!PageSwapCache(page))
goto charge_cur_mm;
- mem = try_get_mem_cgroup_from_page(page);
- if (!mem)
+ memcg = try_get_mem_cgroup_from_page(page);
+ if (!memcg)
goto charge_cur_mm;
- *ptr = mem;
+ *ptr = memcg;
ret = __mem_cgroup_try_charge(NULL, mask, 1, ptr, true);
- css_put(&mem->css);
+ css_put(&memcg->css);
return ret;
charge_cur_mm:
if (unlikely(!mm))
MEM_CGROUP_CHARGE_TYPE_MAPPED);
}
-void mem_cgroup_cancel_charge_swapin(struct mem_cgroup *mem)
+void mem_cgroup_cancel_charge_swapin(struct mem_cgroup *memcg)
{
if (mem_cgroup_disabled())
return;
- if (!mem)
+ if (!memcg)
return;
- __mem_cgroup_cancel_charge(mem, 1);
+ __mem_cgroup_cancel_charge(memcg, 1);
}
-static void mem_cgroup_do_uncharge(struct mem_cgroup *mem,
+static void mem_cgroup_do_uncharge(struct mem_cgroup *memcg,
unsigned int nr_pages,
const enum charge_type ctype)
{
* uncharges. Then, it's ok to ignore memcg's refcnt.
*/
if (!batch->memcg)
- batch->memcg = mem;
+ batch->memcg = memcg;
/*
* do_batch > 0 when unmapping pages or inode invalidate/truncate.
* In those cases, all pages freed continuously can be expected to be in
* merge a series of uncharges to an uncharge of res_counter.
* If not, we uncharge res_counter ony by one.
*/
- if (batch->memcg != mem)
+ if (batch->memcg != memcg)
goto direct_uncharge;
/* remember freed charge and uncharge it later */
batch->nr_pages++;
batch->memsw_nr_pages++;
return;
direct_uncharge:
- res_counter_uncharge(&mem->res, nr_pages * PAGE_SIZE);
+ res_counter_uncharge(&memcg->res, nr_pages * PAGE_SIZE);
if (uncharge_memsw)
- res_counter_uncharge(&mem->memsw, nr_pages * PAGE_SIZE);
- if (unlikely(batch->memcg != mem))
- memcg_oom_recover(mem);
+ res_counter_uncharge(&memcg->memsw, nr_pages * PAGE_SIZE);
+ if (unlikely(batch->memcg != memcg))
+ memcg_oom_recover(memcg);
return;
}
static struct mem_cgroup *
__mem_cgroup_uncharge_common(struct page *page, enum charge_type ctype)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
unsigned int nr_pages = 1;
struct page_cgroup *pc;
lock_page_cgroup(pc);
- mem = pc->mem_cgroup;
+ memcg = pc->mem_cgroup;
if (!PageCgroupUsed(pc))
goto unlock_out;
break;
}
- mem_cgroup_charge_statistics(mem, PageCgroupCache(pc), -nr_pages);
+ mem_cgroup_charge_statistics(memcg, PageCgroupCache(pc), -nr_pages);
ClearPageCgroupUsed(pc);
/*
unlock_page_cgroup(pc);
/*
- * even after unlock, we have mem->res.usage here and this memcg
+ * even after unlock, we have memcg->res.usage here and this memcg
* will never be freed.
*/
- memcg_check_events(mem, page);
+ memcg_check_events(memcg, page);
if (do_swap_account && ctype == MEM_CGROUP_CHARGE_TYPE_SWAPOUT) {
- mem_cgroup_swap_statistics(mem, true);
- mem_cgroup_get(mem);
+ mem_cgroup_swap_statistics(memcg, true);
+ mem_cgroup_get(memcg);
}
- if (!mem_cgroup_is_root(mem))
- mem_cgroup_do_uncharge(mem, nr_pages, ctype);
+ if (!mem_cgroup_is_root(memcg))
+ mem_cgroup_do_uncharge(memcg, nr_pages, ctype);
- return mem;
+ return memcg;
unlock_out:
unlock_page_cgroup(pc);
int mem_cgroup_prepare_migration(struct page *page,
struct page *newpage, struct mem_cgroup **ptr, gfp_t gfp_mask)
{
- struct mem_cgroup *mem = NULL;
+ struct mem_cgroup *memcg = NULL;
struct page_cgroup *pc;
enum charge_type ctype;
int ret = 0;
pc = lookup_page_cgroup(page);
lock_page_cgroup(pc);
if (PageCgroupUsed(pc)) {
- mem = pc->mem_cgroup;
- css_get(&mem->css);
+ memcg = pc->mem_cgroup;
+ css_get(&memcg->css);
/*
* At migrating an anonymous page, its mapcount goes down
* to 0 and uncharge() will be called. But, even if it's fully
* If the page is not charged at this point,
* we return here.
*/
- if (!mem)
+ if (!memcg)
return 0;
- *ptr = mem;
+ *ptr = memcg;
ret = __mem_cgroup_try_charge(NULL, gfp_mask, 1, ptr, false);
- css_put(&mem->css);/* drop extra refcnt */
+ css_put(&memcg->css);/* drop extra refcnt */
if (ret || *ptr == NULL) {
if (PageAnon(page)) {
lock_page_cgroup(pc);
ctype = MEM_CGROUP_CHARGE_TYPE_CACHE;
else
ctype = MEM_CGROUP_CHARGE_TYPE_SHMEM;
- __mem_cgroup_commit_charge(mem, page, 1, pc, ctype);
+ __mem_cgroup_commit_charge(memcg, page, 1, pc, ctype);
return ret;
}
/* remove redundant charge if migration failed*/
-void mem_cgroup_end_migration(struct mem_cgroup *mem,
+void mem_cgroup_end_migration(struct mem_cgroup *memcg,
struct page *oldpage, struct page *newpage, bool migration_ok)
{
struct page *used, *unused;
struct page_cgroup *pc;
- if (!mem)
+ if (!memcg)
return;
/* blocks rmdir() */
- cgroup_exclude_rmdir(&mem->css);
+ cgroup_exclude_rmdir(&memcg->css);
if (!migration_ok) {
used = oldpage;
unused = newpage;
* So, rmdir()->pre_destroy() can be called while we do this charge.
* In that case, we need to call pre_destroy() again. check it here.
*/
- cgroup_release_and_wakeup_rmdir(&mem->css);
+ cgroup_release_and_wakeup_rmdir(&memcg->css);
}
#ifdef CONFIG_DEBUG_VM
/*
* Rather than hide all in some function, I do this in
* open coded manner. You see what this really does.
- * We have to guarantee mem->res.limit < mem->memsw.limit.
+ * We have to guarantee memcg->res.limit < memcg->memsw.limit.
*/
mutex_lock(&set_limit_mutex);
memswlimit = res_counter_read_u64(&memcg->memsw, RES_LIMIT);
/*
* Rather than hide all in some function, I do this in
* open coded manner. You see what this really does.
- * We have to guarantee mem->res.limit < mem->memsw.limit.
+ * We have to guarantee memcg->res.limit < memcg->memsw.limit.
*/
mutex_lock(&set_limit_mutex);
memlimit = res_counter_read_u64(&memcg->res, RES_LIMIT);
* This routine traverse page_cgroup in given list and drop them all.
* *And* this routine doesn't reclaim page itself, just removes page_cgroup.
*/
-static int mem_cgroup_force_empty_list(struct mem_cgroup *mem,
+static int mem_cgroup_force_empty_list(struct mem_cgroup *memcg,
int node, int zid, enum lru_list lru)
{
struct zone *zone;
int ret = 0;
zone = &NODE_DATA(node)->node_zones[zid];
- mz = mem_cgroup_zoneinfo(mem, node, zid);
+ mz = mem_cgroup_zoneinfo(memcg, node, zid);
list = &mz->lists[lru];
loop = MEM_CGROUP_ZSTAT(mz, lru);
page = lookup_cgroup_page(pc);
- ret = mem_cgroup_move_parent(page, pc, mem, GFP_KERNEL);
+ ret = mem_cgroup_move_parent(page, pc, memcg, GFP_KERNEL);
if (ret == -ENOMEM)
break;
* make mem_cgroup's charge to be 0 if there is no task.
* This enables deleting this mem_cgroup.
*/
-static int mem_cgroup_force_empty(struct mem_cgroup *mem, bool free_all)
+static int mem_cgroup_force_empty(struct mem_cgroup *memcg, bool free_all)
{
int ret;
int node, zid, shrink;
int nr_retries = MEM_CGROUP_RECLAIM_RETRIES;
- struct cgroup *cgrp = mem->css.cgroup;
+ struct cgroup *cgrp = memcg->css.cgroup;
- css_get(&mem->css);
+ css_get(&memcg->css);
shrink = 0;
/* should free all ? */
goto out;
/* This is for making all *used* pages to be on LRU. */
lru_add_drain_all();
- drain_all_stock_sync(mem);
+ drain_all_stock_sync(memcg);
ret = 0;
- mem_cgroup_start_move(mem);
+ mem_cgroup_start_move(memcg);
for_each_node_state(node, N_HIGH_MEMORY) {
for (zid = 0; !ret && zid < MAX_NR_ZONES; zid++) {
enum lru_list l;
for_each_lru(l) {
- ret = mem_cgroup_force_empty_list(mem,
+ ret = mem_cgroup_force_empty_list(memcg,
node, zid, l);
if (ret)
break;
if (ret)
break;
}
- mem_cgroup_end_move(mem);
- memcg_oom_recover(mem);
+ mem_cgroup_end_move(memcg);
+ memcg_oom_recover(memcg);
/* it seems parent cgroup doesn't have enough mem */
if (ret == -ENOMEM)
goto try_to_free;
cond_resched();
/* "ret" should also be checked to ensure all lists are empty. */
- } while (mem->res.usage > 0 || ret);
+ } while (memcg->res.usage > 0 || ret);
out:
- css_put(&mem->css);
+ css_put(&memcg->css);
return ret;
try_to_free:
lru_add_drain_all();
/* try to free all pages in this cgroup */
shrink = 1;
- while (nr_retries && mem->res.usage > 0) {
+ while (nr_retries && memcg->res.usage > 0) {
int progress;
if (signal_pending(current)) {
ret = -EINTR;
goto out;
}
- progress = try_to_free_mem_cgroup_pages(mem, GFP_KERNEL,
+ progress = try_to_free_mem_cgroup_pages(memcg, GFP_KERNEL,
false);
if (!progress) {
nr_retries--;
u64 val)
{
int retval = 0;
- struct mem_cgroup *mem = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
struct cgroup *parent = cont->parent;
- struct mem_cgroup *parent_mem = NULL;
+ struct mem_cgroup *parent_memcg = NULL;
if (parent)
- parent_mem = mem_cgroup_from_cont(parent);
+ parent_memcg = mem_cgroup_from_cont(parent);
cgroup_lock();
/*
* For the root cgroup, parent_mem is NULL, we allow value to be
* set if there are no children.
*/
- if ((!parent_mem || !parent_mem->use_hierarchy) &&
+ if ((!parent_memcg || !parent_memcg->use_hierarchy) &&
(val == 1 || val == 0)) {
if (list_empty(&cont->children))
- mem->use_hierarchy = val;
+ memcg->use_hierarchy = val;
else
retval = -EBUSY;
} else
}
-static unsigned long mem_cgroup_recursive_stat(struct mem_cgroup *mem,
+static unsigned long mem_cgroup_recursive_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
struct mem_cgroup *iter;
long val = 0;
/* Per-cpu values can be negative, use a signed accumulator */
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
val += mem_cgroup_read_stat(iter, idx);
if (val < 0) /* race ? */
return val;
}
-static inline u64 mem_cgroup_usage(struct mem_cgroup *mem, bool swap)
+static inline u64 mem_cgroup_usage(struct mem_cgroup *memcg, bool swap)
{
u64 val;
- if (!mem_cgroup_is_root(mem)) {
+ if (!mem_cgroup_is_root(memcg)) {
if (!swap)
- return res_counter_read_u64(&mem->res, RES_USAGE);
+ return res_counter_read_u64(&memcg->res, RES_USAGE);
else
- return res_counter_read_u64(&mem->memsw, RES_USAGE);
+ return res_counter_read_u64(&memcg->memsw, RES_USAGE);
}
- val = mem_cgroup_recursive_stat(mem, MEM_CGROUP_STAT_CACHE);
- val += mem_cgroup_recursive_stat(mem, MEM_CGROUP_STAT_RSS);
+ val = mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_CACHE);
+ val += mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_RSS);
if (swap)
- val += mem_cgroup_recursive_stat(mem, MEM_CGROUP_STAT_SWAPOUT);
+ val += mem_cgroup_recursive_stat(memcg, MEM_CGROUP_STAT_SWAPOUT);
return val << PAGE_SHIFT;
}
static u64 mem_cgroup_read(struct cgroup *cont, struct cftype *cft)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
u64 val;
int type, name;
switch (type) {
case _MEM:
if (name == RES_USAGE)
- val = mem_cgroup_usage(mem, false);
+ val = mem_cgroup_usage(memcg, false);
else
- val = res_counter_read_u64(&mem->res, name);
+ val = res_counter_read_u64(&memcg->res, name);
break;
case _MEMSWAP:
if (name == RES_USAGE)
- val = mem_cgroup_usage(mem, true);
+ val = mem_cgroup_usage(memcg, true);
else
- val = res_counter_read_u64(&mem->memsw, name);
+ val = res_counter_read_u64(&memcg->memsw, name);
break;
default:
BUG();
static int mem_cgroup_reset(struct cgroup *cont, unsigned int event)
{
- struct mem_cgroup *mem;
+ struct mem_cgroup *memcg;
int type, name;
- mem = mem_cgroup_from_cont(cont);
+ memcg = mem_cgroup_from_cont(cont);
type = MEMFILE_TYPE(event);
name = MEMFILE_ATTR(event);
switch (name) {
case RES_MAX_USAGE:
if (type == _MEM)
- res_counter_reset_max(&mem->res);
+ res_counter_reset_max(&memcg->res);
else
- res_counter_reset_max(&mem->memsw);
+ res_counter_reset_max(&memcg->memsw);
break;
case RES_FAILCNT:
if (type == _MEM)
- res_counter_reset_failcnt(&mem->res);
+ res_counter_reset_failcnt(&memcg->res);
else
- res_counter_reset_failcnt(&mem->memsw);
+ res_counter_reset_failcnt(&memcg->memsw);
break;
}
static int mem_cgroup_move_charge_write(struct cgroup *cgrp,
struct cftype *cft, u64 val)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cgrp);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp);
if (val >= (1 << NR_MOVE_TYPE))
return -EINVAL;
* inconsistent.
*/
cgroup_lock();
- mem->move_charge_at_immigrate = val;
+ memcg->move_charge_at_immigrate = val;
cgroup_unlock();
return 0;
static void
-mem_cgroup_get_local_stat(struct mem_cgroup *mem, struct mcs_total_stat *s)
+mem_cgroup_get_local_stat(struct mem_cgroup *memcg, struct mcs_total_stat *s)
{
s64 val;
/* per cpu stat */
- val = mem_cgroup_read_stat(mem, MEM_CGROUP_STAT_CACHE);
+ val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_CACHE);
s->stat[MCS_CACHE] += val * PAGE_SIZE;
- val = mem_cgroup_read_stat(mem, MEM_CGROUP_STAT_RSS);
+ val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_RSS);
s->stat[MCS_RSS] += val * PAGE_SIZE;
- val = mem_cgroup_read_stat(mem, MEM_CGROUP_STAT_FILE_MAPPED);
+ val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_FILE_MAPPED);
s->stat[MCS_FILE_MAPPED] += val * PAGE_SIZE;
- val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGPGIN);
+ val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGPGIN);
s->stat[MCS_PGPGIN] += val;
- val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGPGOUT);
+ val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGPGOUT);
s->stat[MCS_PGPGOUT] += val;
if (do_swap_account) {
- val = mem_cgroup_read_stat(mem, MEM_CGROUP_STAT_SWAPOUT);
+ val = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_SWAPOUT);
s->stat[MCS_SWAP] += val * PAGE_SIZE;
}
- val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGFAULT);
+ val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGFAULT);
s->stat[MCS_PGFAULT] += val;
- val = mem_cgroup_read_events(mem, MEM_CGROUP_EVENTS_PGMAJFAULT);
+ val = mem_cgroup_read_events(memcg, MEM_CGROUP_EVENTS_PGMAJFAULT);
s->stat[MCS_PGMAJFAULT] += val;
/* per zone stat */
- val = mem_cgroup_nr_lru_pages(mem, BIT(LRU_INACTIVE_ANON));
+ val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_ANON));
s->stat[MCS_INACTIVE_ANON] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(mem, BIT(LRU_ACTIVE_ANON));
+ val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_ANON));
s->stat[MCS_ACTIVE_ANON] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(mem, BIT(LRU_INACTIVE_FILE));
+ val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_INACTIVE_FILE));
s->stat[MCS_INACTIVE_FILE] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(mem, BIT(LRU_ACTIVE_FILE));
+ val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_ACTIVE_FILE));
s->stat[MCS_ACTIVE_FILE] += val * PAGE_SIZE;
- val = mem_cgroup_nr_lru_pages(mem, BIT(LRU_UNEVICTABLE));
+ val = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_UNEVICTABLE));
s->stat[MCS_UNEVICTABLE] += val * PAGE_SIZE;
}
static void
-mem_cgroup_get_total_stat(struct mem_cgroup *mem, struct mcs_total_stat *s)
+mem_cgroup_get_total_stat(struct mem_cgroup *memcg, struct mcs_total_stat *s)
{
struct mem_cgroup *iter;
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
mem_cgroup_get_local_stat(iter, s);
}
}
#ifdef CONFIG_DEBUG_VM
- cb->fill(cb, "inactive_ratio", calc_inactive_ratio(mem_cont, NULL));
-
{
int nid, zid;
struct mem_cgroup_per_zone *mz;
return _a->threshold - _b->threshold;
}
-static int mem_cgroup_oom_notify_cb(struct mem_cgroup *mem)
+static int mem_cgroup_oom_notify_cb(struct mem_cgroup *memcg)
{
struct mem_cgroup_eventfd_list *ev;
- list_for_each_entry(ev, &mem->oom_notify, list)
+ list_for_each_entry(ev, &memcg->oom_notify, list)
eventfd_signal(ev->eventfd, 1);
return 0;
}
-static void mem_cgroup_oom_notify(struct mem_cgroup *mem)
+static void mem_cgroup_oom_notify(struct mem_cgroup *memcg)
{
struct mem_cgroup *iter;
- for_each_mem_cgroup_tree(iter, mem)
+ for_each_mem_cgroup_tree(iter, memcg)
mem_cgroup_oom_notify_cb(iter);
}
static void mem_cgroup_oom_unregister_event(struct cgroup *cgrp,
struct cftype *cft, struct eventfd_ctx *eventfd)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cgrp);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp);
struct mem_cgroup_eventfd_list *ev, *tmp;
int type = MEMFILE_TYPE(cft->private);
spin_lock(&memcg_oom_lock);
- list_for_each_entry_safe(ev, tmp, &mem->oom_notify, list) {
+ list_for_each_entry_safe(ev, tmp, &memcg->oom_notify, list) {
if (ev->eventfd == eventfd) {
list_del(&ev->list);
kfree(ev);
static int mem_cgroup_oom_control_read(struct cgroup *cgrp,
struct cftype *cft, struct cgroup_map_cb *cb)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cgrp);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp);
- cb->fill(cb, "oom_kill_disable", mem->oom_kill_disable);
+ cb->fill(cb, "oom_kill_disable", memcg->oom_kill_disable);
- if (atomic_read(&mem->under_oom))
+ if (atomic_read(&memcg->under_oom))
cb->fill(cb, "under_oom", 1);
else
cb->fill(cb, "under_oom", 0);
static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
struct cftype *cft, u64 val)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cgrp);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp);
struct mem_cgroup *parent;
/* cannot set to root cgroup and only 0 and 1 are allowed */
cgroup_lock();
/* oom-kill-disable is a flag for subhierarchy. */
if ((parent->use_hierarchy) ||
- (mem->use_hierarchy && !list_empty(&cgrp->children))) {
+ (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
cgroup_unlock();
return -EINVAL;
}
- mem->oom_kill_disable = val;
+ memcg->oom_kill_disable = val;
if (!val)
- memcg_oom_recover(mem);
+ memcg_oom_recover(memcg);
cgroup_unlock();
return 0;
}
}
#endif
-static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
+static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *memcg, int node)
{
struct mem_cgroup_per_node *pn;
struct mem_cgroup_per_zone *mz;
if (!pn)
return 1;
- mem->info.nodeinfo[node] = pn;
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
mz = &pn->zoneinfo[zone];
for_each_lru(l)
INIT_LIST_HEAD(&mz->lists[l]);
mz->usage_in_excess = 0;
mz->on_tree = false;
- mz->mem = mem;
+ mz->mem = memcg;
}
+ memcg->info.nodeinfo[node] = pn;
return 0;
}
-static void free_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
+static void free_mem_cgroup_per_zone_info(struct mem_cgroup *memcg, int node)
{
- kfree(mem->info.nodeinfo[node]);
+ kfree(memcg->info.nodeinfo[node]);
}
static struct mem_cgroup *mem_cgroup_alloc(void)
* Removal of cgroup itself succeeds regardless of refs from swap.
*/
-static void __mem_cgroup_free(struct mem_cgroup *mem)
+static void __mem_cgroup_free(struct mem_cgroup *memcg)
{
int node;
- mem_cgroup_remove_from_trees(mem);
- free_css_id(&mem_cgroup_subsys, &mem->css);
+ mem_cgroup_remove_from_trees(memcg);
+ free_css_id(&mem_cgroup_subsys, &memcg->css);
for_each_node_state(node, N_POSSIBLE)
- free_mem_cgroup_per_zone_info(mem, node);
+ free_mem_cgroup_per_zone_info(memcg, node);
- free_percpu(mem->stat);
+ free_percpu(memcg->stat);
if (sizeof(struct mem_cgroup) < PAGE_SIZE)
- kfree(mem);
+ kfree(memcg);
else
- vfree(mem);
+ vfree(memcg);
}
-static void mem_cgroup_get(struct mem_cgroup *mem)
+static void mem_cgroup_get(struct mem_cgroup *memcg)
{
- atomic_inc(&mem->refcnt);
+ atomic_inc(&memcg->refcnt);
}
-static void __mem_cgroup_put(struct mem_cgroup *mem, int count)
+static void __mem_cgroup_put(struct mem_cgroup *memcg, int count)
{
- if (atomic_sub_and_test(count, &mem->refcnt)) {
- struct mem_cgroup *parent = parent_mem_cgroup(mem);
- __mem_cgroup_free(mem);
+ if (atomic_sub_and_test(count, &memcg->refcnt)) {
+ struct mem_cgroup *parent = parent_mem_cgroup(memcg);
+ __mem_cgroup_free(memcg);
if (parent)
mem_cgroup_put(parent);
}
}
-static void mem_cgroup_put(struct mem_cgroup *mem)
+static void mem_cgroup_put(struct mem_cgroup *memcg)
{
- __mem_cgroup_put(mem, 1);
+ __mem_cgroup_put(memcg, 1);
}
/*
* Returns the parent mem_cgroup in memcgroup hierarchy with hierarchy enabled.
*/
-static struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *mem)
+static struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg)
{
- if (!mem->res.parent)
+ if (!memcg->res.parent)
return NULL;
- return mem_cgroup_from_res_counter(mem->res.parent, res);
+ return mem_cgroup_from_res_counter(memcg->res.parent, res);
}
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
static struct cgroup_subsys_state * __ref
mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont)
{
- struct mem_cgroup *mem, *parent;
+ struct mem_cgroup *memcg, *parent;
long error = -ENOMEM;
int node;
- mem = mem_cgroup_alloc();
- if (!mem)
+ memcg = mem_cgroup_alloc();
+ if (!memcg)
return ERR_PTR(error);
for_each_node_state(node, N_POSSIBLE)
- if (alloc_mem_cgroup_per_zone_info(mem, node))
+ if (alloc_mem_cgroup_per_zone_info(memcg, node))
goto free_out;
/* root ? */
int cpu;
enable_swap_cgroup();
parent = NULL;
- root_mem_cgroup = mem;
+ root_mem_cgroup = memcg;
if (mem_cgroup_soft_limit_tree_init())
goto free_out;
for_each_possible_cpu(cpu) {
hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
} else {
parent = mem_cgroup_from_cont(cont->parent);
- mem->use_hierarchy = parent->use_hierarchy;
- mem->oom_kill_disable = parent->oom_kill_disable;
+ memcg->use_hierarchy = parent->use_hierarchy;
+ memcg->oom_kill_disable = parent->oom_kill_disable;
}
if (parent && parent->use_hierarchy) {
- res_counter_init(&mem->res, &parent->res);
- res_counter_init(&mem->memsw, &parent->memsw);
+ res_counter_init(&memcg->res, &parent->res);
+ res_counter_init(&memcg->memsw, &parent->memsw);
/*
* We increment refcnt of the parent to ensure that we can
* safely access it on res_counter_charge/uncharge.
*/
mem_cgroup_get(parent);
} else {
- res_counter_init(&mem->res, NULL);
- res_counter_init(&mem->memsw, NULL);
+ res_counter_init(&memcg->res, NULL);
+ res_counter_init(&memcg->memsw, NULL);
}
- mem->last_scanned_child = 0;
- mem->last_scanned_node = MAX_NUMNODES;
- INIT_LIST_HEAD(&mem->oom_notify);
+ memcg->last_scanned_child = 0;
+ memcg->last_scanned_node = MAX_NUMNODES;
+ INIT_LIST_HEAD(&memcg->oom_notify);
if (parent)
- mem->swappiness = mem_cgroup_swappiness(parent);
- atomic_set(&mem->refcnt, 1);
- mem->move_charge_at_immigrate = 0;
- mutex_init(&mem->thresholds_lock);
- return &mem->css;
+ memcg->swappiness = mem_cgroup_swappiness(parent);
+ atomic_set(&memcg->refcnt, 1);
+ memcg->move_charge_at_immigrate = 0;
+ mutex_init(&memcg->thresholds_lock);
+ return &memcg->css;
free_out:
- __mem_cgroup_free(mem);
+ __mem_cgroup_free(memcg);
root_mem_cgroup = NULL;
return ERR_PTR(error);
}
static int mem_cgroup_pre_destroy(struct cgroup_subsys *ss,
struct cgroup *cont)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
- return mem_cgroup_force_empty(mem, false);
+ return mem_cgroup_force_empty(memcg, false);
}
static void mem_cgroup_destroy(struct cgroup_subsys *ss,
struct cgroup *cont)
{
- struct mem_cgroup *mem = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
- mem_cgroup_put(mem);
+ mem_cgroup_put(memcg);
}
static int mem_cgroup_populate(struct cgroup_subsys *ss,
{
int ret = 0;
int batch_count = PRECHARGE_COUNT_AT_ONCE;
- struct mem_cgroup *mem = mc.to;
+ struct mem_cgroup *memcg = mc.to;
- if (mem_cgroup_is_root(mem)) {
+ if (mem_cgroup_is_root(memcg)) {
mc.precharge += count;
/* we don't need css_get for root */
return ret;
if (count > 1) {
struct res_counter *dummy;
/*
- * "mem" cannot be under rmdir() because we've already checked
+ * "memcg" cannot be under rmdir() because we've already checked
* by cgroup_lock_live_cgroup() that it is not removed and we
* are still under the same cgroup_mutex. So we can postpone
* css_get().
*/
- if (res_counter_charge(&mem->res, PAGE_SIZE * count, &dummy))
+ if (res_counter_charge(&memcg->res, PAGE_SIZE * count, &dummy))
goto one_by_one;
- if (do_swap_account && res_counter_charge(&mem->memsw,
+ if (do_swap_account && res_counter_charge(&memcg->memsw,
PAGE_SIZE * count, &dummy)) {
- res_counter_uncharge(&mem->res, PAGE_SIZE * count);
+ res_counter_uncharge(&memcg->res, PAGE_SIZE * count);
goto one_by_one;
}
mc.precharge += count;
batch_count = PRECHARGE_COUNT_AT_ONCE;
cond_resched();
}
- ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, 1, &mem, false);
- if (ret || !mem)
+ ret = __mem_cgroup_try_charge(NULL,
+ GFP_KERNEL, 1, &memcg, false);
+ if (ret || !memcg)
/* mem_cgroup_clear_mc() will do uncharge later */
return -ENOMEM;
mc.precharge++;
struct task_struct *p)
{
int ret = 0;
- struct mem_cgroup *mem = mem_cgroup_from_cont(cgroup);
+ struct mem_cgroup *memcg = mem_cgroup_from_cont(cgroup);
- if (mem->move_charge_at_immigrate) {
+ if (memcg->move_charge_at_immigrate) {
struct mm_struct *mm;
struct mem_cgroup *from = mem_cgroup_from_task(p);
- VM_BUG_ON(from == mem);
+ VM_BUG_ON(from == memcg);
mm = get_task_mm(p);
if (!mm)
mem_cgroup_start_move(from);
spin_lock(&mc.lock);
mc.from = from;
- mc.to = mem;
+ mc.to = memcg;
spin_unlock(&mc.lock);
/* We set mc.moving_task later */
#include <linux/sched.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
+ #include <linux/export.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
#include <linux/backing-dev.h>
* to the end.
*/
if (PageHuge(page)) {
- pr_debug("MCE: Memory failure is now running on free hugepage %#lx\n", pfn);
+ pr_info("MCE: Memory failure is now running on free hugepage %#lx\n", pfn);
return 0;
}
if (TestClearPageHWPoison(p))
if (PageHWPoison(hpage)) {
put_page(hpage);
- pr_debug("soft offline: %#lx hugepage already poisoned\n", pfn);
+ pr_info("soft offline: %#lx hugepage already poisoned\n", pfn);
return -EBUSY;
}
list_for_each_entry_safe(page1, page2, &pagelist, lru)
put_page(page1);
- pr_debug("soft offline: %#lx: migration failed %d, type %lx\n",
- pfn, ret, page->flags);
+ pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
+ pfn, ret, page->flags);
if (ret > 0)
ret = -EIO;
return ret;
}
if (!PageLRU(page)) {
pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n",
- pfn, page->flags);
+ pfn, page->flags);
return -EIO;
}
}
} else {
pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
- pfn, ret, page_count(page), page->flags);
+ pfn, ret, page_count(page), page->flags);
}
if (ret)
return ret;
#include <linux/pagemap.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/delayacct.h>
#include <linux/init.h>
#include <linux/writeback.h>
}
if (flags & FOLL_GET)
- get_page(page);
+ get_page_foll(page);
if (flags & FOLL_TOUCH) {
if ((flags & FOLL_WRITE) &&
!pte_dirty(pte) && !PageDirty(page))
#include <linux/cpuset.h>
#include <linux/slab.h>
#include <linux/string.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/nsproxy.h>
#include <linux/interrupt.h>
#include <linux/init.h>
/*
* run-time system-wide default policy => local allocation
*/
-struct mempolicy default_policy = {
+static struct mempolicy default_policy = {
.refcnt = ATOMIC_INIT(1), /* never free it */
.mode = MPOL_PREFERRED,
.flags = MPOL_F_LOCAL,
*/
#include <linux/migrate.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/swap.h>
#include <linux/swapops.h>
#include <linux/pagemap.h>
return rc;
}
-/*
- * Obtain the lock on page, remove all ptes and migrate the page
- * to the newly allocated page in newpage.
- */
-static int unmap_and_move(new_page_t get_new_page, unsigned long private,
- struct page *page, int force, bool offlining, bool sync)
+static int __unmap_and_move(struct page *page, struct page *newpage,
+ int force, bool offlining, bool sync)
{
- int rc = 0;
- int *result = NULL;
- struct page *newpage = get_new_page(page, private, &result);
+ int rc = -EAGAIN;
int remap_swapcache = 1;
int charge = 0;
struct mem_cgroup *mem;
struct anon_vma *anon_vma = NULL;
- if (!newpage)
- return -ENOMEM;
-
- if (page_count(page) == 1) {
- /* page was freed from under us. So we are done. */
- goto move_newpage;
- }
- if (unlikely(PageTransHuge(page)))
- if (unlikely(split_huge_page(page)))
- goto move_newpage;
-
- /* prepare cgroup just returns 0 or -ENOMEM */
- rc = -EAGAIN;
-
if (!trylock_page(page)) {
if (!force || !sync)
- goto move_newpage;
+ goto out;
/*
* It's not safe for direct compaction to call lock_page.
* altogether.
*/
if (current->flags & PF_MEMALLOC)
- goto move_newpage;
+ goto out;
lock_page(page);
}
mem_cgroup_end_migration(mem, page, newpage, rc == 0);
unlock:
unlock_page(page);
+out:
+ return rc;
+}
-move_newpage:
+/*
+ * Obtain the lock on page, remove all ptes and migrate the page
+ * to the newly allocated page in newpage.
+ */
+static int unmap_and_move(new_page_t get_new_page, unsigned long private,
+ struct page *page, int force, bool offlining, bool sync)
+{
+ int rc = 0;
+ int *result = NULL;
+ struct page *newpage = get_new_page(page, private, &result);
+
+ if (!newpage)
+ return -ENOMEM;
+
+ if (page_count(page) == 1) {
+ /* page was freed from under us. So we are done. */
+ goto out;
+ }
+
+ if (unlikely(PageTransHuge(page)))
+ if (unlikely(split_huge_page(page)))
+ goto out;
+
+ rc = __unmap_and_move(page, newpage, force, offlining, sync);
+out:
if (rc != -EAGAIN) {
- /*
- * A page that has been migrated has all references
- * removed and will be freed. A page that has not been
- * migrated will have kepts its references and be
- * restored.
- */
- list_del(&page->lru);
+ /*
+ * A page that has been migrated has all references
+ * removed and will be freed. A page that has not been
+ * migrated will have kepts its references and be
+ * restored.
+ */
+ list_del(&page->lru);
dec_zone_page_state(page, NR_ISOLATED_ANON +
page_is_file_cache(page));
putback_lru_page(page);
}
-
/*
* Move the new page to the LRU. If migration was not successful
* then this will free the page.
*/
putback_lru_page(newpage);
-
if (result) {
if (rc)
*result = rc;
#include <linux/mempolicy.h>
#include <linux/syscalls.h>
#include <linux/sched.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/rmap.h>
#include <linux/mmzone.h>
#include <linux/hugetlb.h>
if (TestClearPageMlocked(page)) {
dec_zone_page_state(page, NR_MLOCK);
if (!isolate_lru_page(page)) {
- int ret = try_to_munlock(page);
+ int ret = SWAP_AGAIN;
+
+ /*
+ * Optimization: if the page was mapped just once,
+ * that's our mapping and we don't need to check all the
+ * other vmas.
+ */
+ if (page_mapcount(page) > 1)
+ ret = try_to_munlock(page);
/*
* did try_to_unlock() succeed or punt?
*/
if (!can_do_mlock())
goto out;
- lru_add_drain_all(); /* flush pagevec */
+ if (flags & MCL_CURRENT)
+ lru_add_drain_all(); /* flush pagevec */
down_write(¤t->mm->mmap_sem);
#include <linux/security.h>
#include <linux/hugetlb.h>
#include <linux/profile.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/mount.h>
#include <linux/mempolicy.h>
#include <linux/rmap.h>
{
struct vm_area_struct *vma;
struct anon_vma_chain *avc;
- int ret = -EINTR;
BUG_ON(down_read_trylock(&mm->mmap_sem));
vm_lock_anon_vma(mm, avc->anon_vma);
}
- ret = 0;
+ return 0;
out_unlock:
- if (ret)
- mm_drop_all_locks(mm);
-
- return ret;
+ mm_drop_all_locks(mm);
+ return -EINTR;
}
static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
#include <linux/timex.h>
#include <linux/jiffies.h>
#include <linux/cpuset.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/notifier.h>
#include <linux/memcontrol.h>
#include <linux/mempolicy.h>
#include <linux/security.h>
#include <linux/ptrace.h>
+#include <linux/freezer.h>
int sysctl_panic_on_oom;
int sysctl_oom_kill_allocating_task;
int sysctl_oom_dump_tasks = 1;
static DEFINE_SPINLOCK(zone_scan_lock);
+/*
+ * compare_swap_oom_score_adj() - compare and swap current's oom_score_adj
+ * @old_val: old oom_score_adj for compare
+ * @new_val: new oom_score_adj for swap
+ *
+ * Sets the oom_score_adj value for current to @new_val iff its present value is
+ * @old_val. Usually used to reinstate a previous value to prevent racing with
+ * userspacing tuning the value in the interim.
+ */
+void compare_swap_oom_score_adj(int old_val, int new_val)
+{
+ struct sighand_struct *sighand = current->sighand;
+
+ spin_lock_irq(&sighand->siglock);
+ if (current->signal->oom_score_adj == old_val)
+ current->signal->oom_score_adj = new_val;
+ spin_unlock_irq(&sighand->siglock);
+}
+
/**
* test_set_oom_score_adj() - set current's oom_score_adj and return old value
* @new_val: new oom_score_adj value
spin_lock_irq(&sighand->siglock);
old_val = current->signal->oom_score_adj;
- if (new_val != old_val) {
- if (new_val == OOM_SCORE_ADJ_MIN)
- atomic_inc(¤t->mm->oom_disable_count);
- else if (old_val == OOM_SCORE_ADJ_MIN)
- atomic_dec(¤t->mm->oom_disable_count);
- current->signal->oom_score_adj = new_val;
- }
+ current->signal->oom_score_adj = new_val;
spin_unlock_irq(&sighand->siglock);
return old_val;
if (!p)
return 0;
- /*
- * Shortcut check for a thread sharing p->mm that is OOM_SCORE_ADJ_MIN
- * so the entire heuristic doesn't need to be executed for something
- * that cannot be killed.
- */
- if (atomic_read(&p->mm->oom_disable_count)) {
- task_unlock(p);
- return 0;
- }
-
/*
* The memory controller may have a limit of 0 bytes, so avoid a divide
* by zero, if necessary.
* blocked waiting for another task which itself is waiting
* for memory. Is there a better alternative?
*/
- if (test_tsk_thread_flag(p, TIF_MEMDIE))
+ if (test_tsk_thread_flag(p, TIF_MEMDIE)) {
+ if (unlikely(frozen(p)))
+ thaw_process(p);
return ERR_PTR(-1UL);
+ }
if (!p->mm)
continue;
task_unlock(p);
/*
- * Kill all processes sharing p->mm in other thread groups, if any.
+ * Kill all user processes sharing p->mm in other thread groups, if any.
* They don't get access to memory reserves or a higher scheduler
* priority, though, to avoid depletion of all memory or task
* starvation. This prevents mm->mmap_sem livelock when an oom killed
* signal.
*/
for_each_process(q)
- if (q->mm == mm && !same_thread_group(q, p)) {
+ if (q->mm == mm && !same_thread_group(q, p) &&
+ !(q->flags & PF_KTHREAD)) {
+ if (q->signal->oom_score_adj == OOM_SCORE_ADJ_MIN)
+ continue;
+
task_lock(q); /* Protect ->comm from prctl() */
pr_err("Kill process %d (%s) sharing same memory\n",
task_pid_nr(q), q->comm);
read_lock(&tasklist_lock);
if (sysctl_oom_kill_allocating_task &&
!oom_unkillable_task(current, NULL, nodemask) &&
- current->mm && !atomic_read(¤t->mm->oom_disable_count)) {
+ current->mm) {
/*
* oom_kill_process() needs tasklist_lock held. If it returns
* non-zero, current could not be killed so we must fallback to
*/
#include <linux/kernel.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/mm.h>
*/
#define BANDWIDTH_INTERVAL max(HZ/5, 1)
+#define RATELIMIT_CALC_SHIFT 10
+
/*
* After a CPU has dirtied this many pages, balance_dirty_pages_ratelimited
* will look to see if it needs to force writeback or throttling.
*/
static long ratelimit_pages = 32;
-/*
- * When balance_dirty_pages decides that the caller needs to perform some
- * non-background writeback, this is how many pages it will attempt to write.
- * It should be somewhat larger than dirtied pages to ensure that reasonably
- * large amounts of I/O are submitted.
- */
-static inline long sync_writeback_pages(unsigned long dirtied)
-{
- if (dirtied < ratelimit_pages)
- dirtied = ratelimit_pages;
-
- return dirtied + dirtied / 2;
-}
-
/* The following parameters are exported via /proc/sys/vm */
/*
int shift = calc_period_shift();
prop_change_shift(&vm_completions, shift);
prop_change_shift(&vm_dirties, shift);
+
+ writeback_set_ratelimit();
}
int dirty_background_ratio_handler(struct ctl_table *table, int write,
numerator, denominator);
}
-static inline void task_dirties_fraction(struct task_struct *tsk,
- long *numerator, long *denominator)
-{
- prop_fraction_single(&vm_dirties, &tsk->dirties,
- numerator, denominator);
-}
-
/*
- * task_dirty_limit - scale down dirty throttling threshold for one task
- *
- * task specific dirty limit:
- *
- * dirty -= (dirty/8) * p_{t}
- *
- * To protect light/slow dirtying tasks from heavier/fast ones, we start
- * throttling individual tasks before reaching the bdi dirty limit.
- * Relatively low thresholds will be allocated to heavy dirtiers. So when
- * dirty pages grow large, heavy dirtiers will be throttled first, which will
- * effectively curb the growth of dirty pages. Light dirtiers with high enough
- * dirty threshold may never get throttled.
- */
-#define TASK_LIMIT_FRACTION 8
-static unsigned long task_dirty_limit(struct task_struct *tsk,
- unsigned long bdi_dirty)
-{
- long numerator, denominator;
- unsigned long dirty = bdi_dirty;
- u64 inv = dirty / TASK_LIMIT_FRACTION;
-
- task_dirties_fraction(tsk, &numerator, &denominator);
- inv *= numerator;
- do_div(inv, denominator);
-
- dirty -= inv;
-
- return max(dirty, bdi_dirty/2);
-}
-
-/* Minimum limit for any task */
-static unsigned long task_min_dirty_limit(unsigned long bdi_dirty)
-{
- return bdi_dirty - bdi_dirty / TASK_LIMIT_FRACTION;
-}
-
-/*
- *
+ * bdi_min_ratio keeps the sum of the minimum dirty shares of all
+ * registered backing devices, which, for obvious reasons, can not
+ * exceed 100%.
*/
static unsigned int bdi_min_ratio;
return x + 1; /* Ensure that we never return 0 */
}
+static unsigned long dirty_freerun_ceiling(unsigned long thresh,
+ unsigned long bg_thresh)
+{
+ return (thresh + bg_thresh) / 2;
+}
+
static unsigned long hard_dirty_limit(unsigned long thresh)
{
return max(thresh, global_dirty_limit);
return bdi_dirty;
}
+/*
+ * Dirty position control.
+ *
+ * (o) global/bdi setpoints
+ *
+ * We want the dirty pages be balanced around the global/bdi setpoints.
+ * When the number of dirty pages is higher/lower than the setpoint, the
+ * dirty position control ratio (and hence task dirty ratelimit) will be
+ * decreased/increased to bring the dirty pages back to the setpoint.
+ *
+ * pos_ratio = 1 << RATELIMIT_CALC_SHIFT
+ *
+ * if (dirty < setpoint) scale up pos_ratio
+ * if (dirty > setpoint) scale down pos_ratio
+ *
+ * if (bdi_dirty < bdi_setpoint) scale up pos_ratio
+ * if (bdi_dirty > bdi_setpoint) scale down pos_ratio
+ *
+ * task_ratelimit = dirty_ratelimit * pos_ratio >> RATELIMIT_CALC_SHIFT
+ *
+ * (o) global control line
+ *
+ * ^ pos_ratio
+ * |
+ * | |<===== global dirty control scope ======>|
+ * 2.0 .............*
+ * | .*
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * 1.0 ................................*
+ * | . . *
+ * | . . *
+ * | . . *
+ * | . . *
+ * | . . *
+ * 0 +------------.------------------.----------------------*------------->
+ * freerun^ setpoint^ limit^ dirty pages
+ *
+ * (o) bdi control line
+ *
+ * ^ pos_ratio
+ * |
+ * | *
+ * | *
+ * | *
+ * | *
+ * | * |<=========== span ============>|
+ * 1.0 .......................*
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * | . *
+ * 1/4 ...............................................* * * * * * * * * * * *
+ * | . .
+ * | . .
+ * | . .
+ * 0 +----------------------.-------------------------------.------------->
+ * bdi_setpoint^ x_intercept^
+ *
+ * The bdi control line won't drop below pos_ratio=1/4, so that bdi_dirty can
+ * be smoothly throttled down to normal if it starts high in situations like
+ * - start writing to a slow SD card and a fast disk at the same time. The SD
+ * card's bdi_dirty may rush to many times higher than bdi_setpoint.
+ * - the bdi dirty thresh drops quickly due to change of JBOD workload
+ */
+static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
+ unsigned long thresh,
+ unsigned long bg_thresh,
+ unsigned long dirty,
+ unsigned long bdi_thresh,
+ unsigned long bdi_dirty)
+{
+ unsigned long write_bw = bdi->avg_write_bandwidth;
+ unsigned long freerun = dirty_freerun_ceiling(thresh, bg_thresh);
+ unsigned long limit = hard_dirty_limit(thresh);
+ unsigned long x_intercept;
+ unsigned long setpoint; /* dirty pages' target balance point */
+ unsigned long bdi_setpoint;
+ unsigned long span;
+ long long pos_ratio; /* for scaling up/down the rate limit */
+ long x;
+
+ if (unlikely(dirty >= limit))
+ return 0;
+
+ /*
+ * global setpoint
+ *
+ * setpoint - dirty 3
+ * f(dirty) := 1.0 + (----------------)
+ * limit - setpoint
+ *
+ * it's a 3rd order polynomial that subjects to
+ *
+ * (1) f(freerun) = 2.0 => rampup dirty_ratelimit reasonably fast
+ * (2) f(setpoint) = 1.0 => the balance point
+ * (3) f(limit) = 0 => the hard limit
+ * (4) df/dx <= 0 => negative feedback control
+ * (5) the closer to setpoint, the smaller |df/dx| (and the reverse)
+ * => fast response on large errors; small oscillation near setpoint
+ */
+ setpoint = (freerun + limit) / 2;
+ x = div_s64((setpoint - dirty) << RATELIMIT_CALC_SHIFT,
+ limit - setpoint + 1);
+ pos_ratio = x;
+ pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
+ pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
+ pos_ratio += 1 << RATELIMIT_CALC_SHIFT;
+
+ /*
+ * We have computed basic pos_ratio above based on global situation. If
+ * the bdi is over/under its share of dirty pages, we want to scale
+ * pos_ratio further down/up. That is done by the following mechanism.
+ */
+
+ /*
+ * bdi setpoint
+ *
+ * f(bdi_dirty) := 1.0 + k * (bdi_dirty - bdi_setpoint)
+ *
+ * x_intercept - bdi_dirty
+ * := --------------------------
+ * x_intercept - bdi_setpoint
+ *
+ * The main bdi control line is a linear function that subjects to
+ *
+ * (1) f(bdi_setpoint) = 1.0
+ * (2) k = - 1 / (8 * write_bw) (in single bdi case)
+ * or equally: x_intercept = bdi_setpoint + 8 * write_bw
+ *
+ * For single bdi case, the dirty pages are observed to fluctuate
+ * regularly within range
+ * [bdi_setpoint - write_bw/2, bdi_setpoint + write_bw/2]
+ * for various filesystems, where (2) can yield in a reasonable 12.5%
+ * fluctuation range for pos_ratio.
+ *
+ * For JBOD case, bdi_thresh (not bdi_dirty!) could fluctuate up to its
+ * own size, so move the slope over accordingly and choose a slope that
+ * yields 100% pos_ratio fluctuation on suddenly doubled bdi_thresh.
+ */
+ if (unlikely(bdi_thresh > thresh))
+ bdi_thresh = thresh;
+ bdi_thresh = max(bdi_thresh, (limit - dirty) / 8);
+ /*
+ * scale global setpoint to bdi's:
+ * bdi_setpoint = setpoint * bdi_thresh / thresh
+ */
+ x = div_u64((u64)bdi_thresh << 16, thresh + 1);
+ bdi_setpoint = setpoint * (u64)x >> 16;
+ /*
+ * Use span=(8*write_bw) in single bdi case as indicated by
+ * (thresh - bdi_thresh ~= 0) and transit to bdi_thresh in JBOD case.
+ *
+ * bdi_thresh thresh - bdi_thresh
+ * span = ---------- * (8 * write_bw) + ------------------- * bdi_thresh
+ * thresh thresh
+ */
+ span = (thresh - bdi_thresh + 8 * write_bw) * (u64)x >> 16;
+ x_intercept = bdi_setpoint + span;
+
+ if (bdi_dirty < x_intercept - span / 4) {
+ pos_ratio = div_u64(pos_ratio * (x_intercept - bdi_dirty),
+ x_intercept - bdi_setpoint + 1);
+ } else
+ pos_ratio /= 4;
+
+ /*
+ * bdi reserve area, safeguard against dirty pool underrun and disk idle
+ * It may push the desired control point of global dirty pages higher
+ * than setpoint.
+ */
+ x_intercept = bdi_thresh / 2;
+ if (bdi_dirty < x_intercept) {
+ if (bdi_dirty > x_intercept / 8)
+ pos_ratio = div_u64(pos_ratio * x_intercept, bdi_dirty);
+ else
+ pos_ratio *= 8;
+ }
+
+ return pos_ratio;
+}
+
static void bdi_update_write_bandwidth(struct backing_dev_info *bdi,
unsigned long elapsed,
unsigned long written)
spin_unlock(&dirty_lock);
}
+/*
+ * Maintain bdi->dirty_ratelimit, the base dirty throttle rate.
+ *
+ * Normal bdi tasks will be curbed at or below it in long term.
+ * Obviously it should be around (write_bw / N) when there are N dd tasks.
+ */
+static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
+ unsigned long thresh,
+ unsigned long bg_thresh,
+ unsigned long dirty,
+ unsigned long bdi_thresh,
+ unsigned long bdi_dirty,
+ unsigned long dirtied,
+ unsigned long elapsed)
+{
+ unsigned long freerun = dirty_freerun_ceiling(thresh, bg_thresh);
+ unsigned long limit = hard_dirty_limit(thresh);
+ unsigned long setpoint = (freerun + limit) / 2;
+ unsigned long write_bw = bdi->avg_write_bandwidth;
+ unsigned long dirty_ratelimit = bdi->dirty_ratelimit;
+ unsigned long dirty_rate;
+ unsigned long task_ratelimit;
+ unsigned long balanced_dirty_ratelimit;
+ unsigned long pos_ratio;
+ unsigned long step;
+ unsigned long x;
+
+ /*
+ * The dirty rate will match the writeout rate in long term, except
+ * when dirty pages are truncated by userspace or re-dirtied by FS.
+ */
+ dirty_rate = (dirtied - bdi->dirtied_stamp) * HZ / elapsed;
+
+ pos_ratio = bdi_position_ratio(bdi, thresh, bg_thresh, dirty,
+ bdi_thresh, bdi_dirty);
+ /*
+ * task_ratelimit reflects each dd's dirty rate for the past 200ms.
+ */
+ task_ratelimit = (u64)dirty_ratelimit *
+ pos_ratio >> RATELIMIT_CALC_SHIFT;
+ task_ratelimit++; /* it helps rampup dirty_ratelimit from tiny values */
+
+ /*
+ * A linear estimation of the "balanced" throttle rate. The theory is,
+ * if there are N dd tasks, each throttled at task_ratelimit, the bdi's
+ * dirty_rate will be measured to be (N * task_ratelimit). So the below
+ * formula will yield the balanced rate limit (write_bw / N).
+ *
+ * Note that the expanded form is not a pure rate feedback:
+ * rate_(i+1) = rate_(i) * (write_bw / dirty_rate) (1)
+ * but also takes pos_ratio into account:
+ * rate_(i+1) = rate_(i) * (write_bw / dirty_rate) * pos_ratio (2)
+ *
+ * (1) is not realistic because pos_ratio also takes part in balancing
+ * the dirty rate. Consider the state
+ * pos_ratio = 0.5 (3)
+ * rate = 2 * (write_bw / N) (4)
+ * If (1) is used, it will stuck in that state! Because each dd will
+ * be throttled at
+ * task_ratelimit = pos_ratio * rate = (write_bw / N) (5)
+ * yielding
+ * dirty_rate = N * task_ratelimit = write_bw (6)
+ * put (6) into (1) we get
+ * rate_(i+1) = rate_(i) (7)
+ *
+ * So we end up using (2) to always keep
+ * rate_(i+1) ~= (write_bw / N) (8)
+ * regardless of the value of pos_ratio. As long as (8) is satisfied,
+ * pos_ratio is able to drive itself to 1.0, which is not only where
+ * the dirty count meet the setpoint, but also where the slope of
+ * pos_ratio is most flat and hence task_ratelimit is least fluctuated.
+ */
+ balanced_dirty_ratelimit = div_u64((u64)task_ratelimit * write_bw,
+ dirty_rate | 1);
+
+ /*
+ * We could safely do this and return immediately:
+ *
+ * bdi->dirty_ratelimit = balanced_dirty_ratelimit;
+ *
+ * However to get a more stable dirty_ratelimit, the below elaborated
+ * code makes use of task_ratelimit to filter out sigular points and
+ * limit the step size.
+ *
+ * The below code essentially only uses the relative value of
+ *
+ * task_ratelimit - dirty_ratelimit
+ * = (pos_ratio - 1) * dirty_ratelimit
+ *
+ * which reflects the direction and size of dirty position error.
+ */
+
+ /*
+ * dirty_ratelimit will follow balanced_dirty_ratelimit iff
+ * task_ratelimit is on the same side of dirty_ratelimit, too.
+ * For example, when
+ * - dirty_ratelimit > balanced_dirty_ratelimit
+ * - dirty_ratelimit > task_ratelimit (dirty pages are above setpoint)
+ * lowering dirty_ratelimit will help meet both the position and rate
+ * control targets. Otherwise, don't update dirty_ratelimit if it will
+ * only help meet the rate target. After all, what the users ultimately
+ * feel and care are stable dirty rate and small position error.
+ *
+ * |task_ratelimit - dirty_ratelimit| is used to limit the step size
+ * and filter out the sigular points of balanced_dirty_ratelimit. Which
+ * keeps jumping around randomly and can even leap far away at times
+ * due to the small 200ms estimation period of dirty_rate (we want to
+ * keep that period small to reduce time lags).
+ */
+ step = 0;
+ if (dirty < setpoint) {
+ x = min(bdi->balanced_dirty_ratelimit,
+ min(balanced_dirty_ratelimit, task_ratelimit));
+ if (dirty_ratelimit < x)
+ step = x - dirty_ratelimit;
+ } else {
+ x = max(bdi->balanced_dirty_ratelimit,
+ max(balanced_dirty_ratelimit, task_ratelimit));
+ if (dirty_ratelimit > x)
+ step = dirty_ratelimit - x;
+ }
+
+ /*
+ * Don't pursue 100% rate matching. It's impossible since the balanced
+ * rate itself is constantly fluctuating. So decrease the track speed
+ * when it gets close to the target. Helps eliminate pointless tremors.
+ */
+ step >>= dirty_ratelimit / (2 * step + 1);
+ /*
+ * Limit the tracking speed to avoid overshooting.
+ */
+ step = (step + 7) / 8;
+
+ if (dirty_ratelimit < balanced_dirty_ratelimit)
+ dirty_ratelimit += step;
+ else
+ dirty_ratelimit -= step;
+
+ bdi->dirty_ratelimit = max(dirty_ratelimit, 1UL);
+ bdi->balanced_dirty_ratelimit = balanced_dirty_ratelimit;
+
+ trace_bdi_dirty_ratelimit(bdi, dirty_rate, task_ratelimit);
+}
+
void __bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
{
unsigned long now = jiffies;
unsigned long elapsed = now - bdi->bw_time_stamp;
+ unsigned long dirtied;
unsigned long written;
/*
if (elapsed < BANDWIDTH_INTERVAL)
return;
+ dirtied = percpu_counter_read(&bdi->bdi_stat[BDI_DIRTIED]);
written = percpu_counter_read(&bdi->bdi_stat[BDI_WRITTEN]);
/*
if (elapsed > HZ && time_before(bdi->bw_time_stamp, start_time))
goto snapshot;
- if (thresh)
+ if (thresh) {
global_update_bandwidth(thresh, dirty, now);
-
+ bdi_update_dirty_ratelimit(bdi, thresh, bg_thresh, dirty,
+ bdi_thresh, bdi_dirty,
+ dirtied, elapsed);
+ }
bdi_update_write_bandwidth(bdi, elapsed, written);
snapshot:
+ bdi->dirtied_stamp = dirtied;
bdi->written_stamp = written;
bdi->bw_time_stamp = now;
}
static void bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
if (time_is_after_eq_jiffies(bdi->bw_time_stamp + BANDWIDTH_INTERVAL))
return;
spin_lock(&bdi->wb.list_lock);
- __bdi_update_bandwidth(bdi, thresh, dirty, bdi_thresh, bdi_dirty,
- start_time);
+ __bdi_update_bandwidth(bdi, thresh, bg_thresh, dirty,
+ bdi_thresh, bdi_dirty, start_time);
spin_unlock(&bdi->wb.list_lock);
}
+/*
+ * After a task dirtied this many pages, balance_dirty_pages_ratelimited_nr()
+ * will look to see if it needs to start dirty throttling.
+ *
+ * If dirty_poll_interval is too low, big NUMA machines will call the expensive
+ * global_page_state() too often. So scale it near-sqrt to the safety margin
+ * (the number of pages we may dirty without exceeding the dirty limits).
+ */
+static unsigned long dirty_poll_interval(unsigned long dirty,
+ unsigned long thresh)
+{
+ if (thresh > dirty)
+ return 1UL << (ilog2(thresh - dirty) >> 1);
+
+ return 1;
+}
+
+static unsigned long bdi_max_pause(struct backing_dev_info *bdi,
+ unsigned long bdi_dirty)
+{
+ unsigned long bw = bdi->avg_write_bandwidth;
+ unsigned long hi = ilog2(bw);
+ unsigned long lo = ilog2(bdi->dirty_ratelimit);
+ unsigned long t;
+
+ /* target for 20ms max pause on 1-dd case */
+ t = HZ / 50;
+
+ /*
+ * Scale up pause time for concurrent dirtiers in order to reduce CPU
+ * overheads.
+ *
+ * (N * 20ms) on 2^N concurrent tasks.
+ */
+ if (hi > lo)
+ t += (hi - lo) * (20 * HZ) / 1024;
+
+ /*
+ * Limit pause time for small memory systems. If sleeping for too long
+ * time, a small pool of dirty/writeback pages may go empty and disk go
+ * idle.
+ *
+ * 8 serves as the safety ratio.
+ */
+ if (bdi_dirty)
+ t = min(t, bdi_dirty * HZ / (8 * bw + 1));
+
+ /*
+ * The pause time will be settled within range (max_pause/4, max_pause).
+ * Apply a minimal value of 4 to get a non-zero max_pause/4.
+ */
+ return clamp_val(t, 4, MAX_PAUSE);
+}
+
/*
* balance_dirty_pages() must be called by processes which are generating dirty
* data. It looks at the number of dirty pages in the machine and will force
- * the caller to perform writeback if the system is over `vm_dirty_ratio'.
+ * the caller to wait once crossing the (background_thresh + dirty_thresh) / 2.
* If we're over `background_thresh' then the writeback threads are woken to
* perform some writeout.
*/
static void balance_dirty_pages(struct address_space *mapping,
- unsigned long write_chunk)
+ unsigned long pages_dirtied)
{
- unsigned long nr_reclaimable, bdi_nr_reclaimable;
+ unsigned long nr_reclaimable; /* = file_dirty + unstable_nfs */
+ unsigned long bdi_reclaimable;
unsigned long nr_dirty; /* = file_dirty + writeback + unstable_nfs */
unsigned long bdi_dirty;
+ unsigned long freerun;
unsigned long background_thresh;
unsigned long dirty_thresh;
unsigned long bdi_thresh;
- unsigned long task_bdi_thresh;
- unsigned long min_task_bdi_thresh;
- unsigned long pages_written = 0;
- unsigned long pause = 1;
+ long pause = 0;
+ long uninitialized_var(max_pause);
bool dirty_exceeded = false;
- bool clear_dirty_exceeded = true;
+ unsigned long task_ratelimit;
+ unsigned long uninitialized_var(dirty_ratelimit);
+ unsigned long pos_ratio;
struct backing_dev_info *bdi = mapping->backing_dev_info;
unsigned long start_time = jiffies;
for (;;) {
+ /*
+ * Unstable writes are a feature of certain networked
+ * filesystems (i.e. NFS) in which data may have been
+ * written to the server's write cache, but has not yet
+ * been flushed to permanent storage.
+ */
nr_reclaimable = global_page_state(NR_FILE_DIRTY) +
global_page_state(NR_UNSTABLE_NFS);
nr_dirty = nr_reclaimable + global_page_state(NR_WRITEBACK);
* catch-up. This avoids (excessively) small writeouts
* when the bdi limits are ramping up.
*/
- if (nr_dirty <= (background_thresh + dirty_thresh) / 2)
+ freerun = dirty_freerun_ceiling(dirty_thresh,
+ background_thresh);
+ if (nr_dirty <= freerun)
break;
+ if (unlikely(!writeback_in_progress(bdi)))
+ bdi_start_background_writeback(bdi);
+
+ /*
+ * bdi_thresh is not treated as some limiting factor as
+ * dirty_thresh, due to reasons
+ * - in JBOD setup, bdi_thresh can fluctuate a lot
+ * - in a system with HDD and USB key, the USB key may somehow
+ * go into state (bdi_dirty >> bdi_thresh) either because
+ * bdi_dirty starts high, or because bdi_thresh drops low.
+ * In this case we don't want to hard throttle the USB key
+ * dirtiers for 100 seconds until bdi_dirty drops under
+ * bdi_thresh. Instead the auxiliary bdi control line in
+ * bdi_position_ratio() will let the dirtier task progress
+ * at some rate <= (write_bw / 2) for bringing down bdi_dirty.
+ */
bdi_thresh = bdi_dirty_limit(bdi, dirty_thresh);
- min_task_bdi_thresh = task_min_dirty_limit(bdi_thresh);
- task_bdi_thresh = task_dirty_limit(current, bdi_thresh);
/*
* In order to avoid the stacked BDI deadlock we need
* actually dirty; with m+n sitting in the percpu
* deltas.
*/
- if (task_bdi_thresh < 2 * bdi_stat_error(bdi)) {
- bdi_nr_reclaimable = bdi_stat_sum(bdi, BDI_RECLAIMABLE);
- bdi_dirty = bdi_nr_reclaimable +
+ if (bdi_thresh < 2 * bdi_stat_error(bdi)) {
+ bdi_reclaimable = bdi_stat_sum(bdi, BDI_RECLAIMABLE);
+ bdi_dirty = bdi_reclaimable +
bdi_stat_sum(bdi, BDI_WRITEBACK);
} else {
- bdi_nr_reclaimable = bdi_stat(bdi, BDI_RECLAIMABLE);
- bdi_dirty = bdi_nr_reclaimable +
+ bdi_reclaimable = bdi_stat(bdi, BDI_RECLAIMABLE);
+ bdi_dirty = bdi_reclaimable +
bdi_stat(bdi, BDI_WRITEBACK);
}
- /*
- * The bdi thresh is somehow "soft" limit derived from the
- * global "hard" limit. The former helps to prevent heavy IO
- * bdi or process from holding back light ones; The latter is
- * the last resort safeguard.
- */
- dirty_exceeded = (bdi_dirty > task_bdi_thresh) ||
+ dirty_exceeded = (bdi_dirty > bdi_thresh) ||
(nr_dirty > dirty_thresh);
- clear_dirty_exceeded = (bdi_dirty <= min_task_bdi_thresh) &&
- (nr_dirty <= dirty_thresh);
-
- if (!dirty_exceeded)
- break;
-
- if (!bdi->dirty_exceeded)
+ if (dirty_exceeded && !bdi->dirty_exceeded)
bdi->dirty_exceeded = 1;
- bdi_update_bandwidth(bdi, dirty_thresh, nr_dirty,
- bdi_thresh, bdi_dirty, start_time);
+ bdi_update_bandwidth(bdi, dirty_thresh, background_thresh,
+ nr_dirty, bdi_thresh, bdi_dirty,
+ start_time);
- /* Note: nr_reclaimable denotes nr_dirty + nr_unstable.
- * Unstable writes are a feature of certain networked
- * filesystems (i.e. NFS) in which data may have been
- * written to the server's write cache, but has not yet
- * been flushed to permanent storage.
- * Only move pages to writeback if this bdi is over its
- * threshold otherwise wait until the disk writes catch
- * up.
- */
- trace_balance_dirty_start(bdi);
- if (bdi_nr_reclaimable > task_bdi_thresh) {
- pages_written += writeback_inodes_wb(&bdi->wb,
- write_chunk);
- trace_balance_dirty_written(bdi, pages_written);
- if (pages_written >= write_chunk)
- break; /* We've done our duty */
+ max_pause = bdi_max_pause(bdi, bdi_dirty);
+
+ dirty_ratelimit = bdi->dirty_ratelimit;
+ pos_ratio = bdi_position_ratio(bdi, dirty_thresh,
+ background_thresh, nr_dirty,
+ bdi_thresh, bdi_dirty);
+ if (unlikely(pos_ratio == 0)) {
+ pause = max_pause;
+ goto pause;
+ }
+ task_ratelimit = (u64)dirty_ratelimit *
+ pos_ratio >> RATELIMIT_CALC_SHIFT;
+ pause = (HZ * pages_dirtied) / (task_ratelimit | 1);
+ if (unlikely(pause <= 0)) {
+ trace_balance_dirty_pages(bdi,
+ dirty_thresh,
+ background_thresh,
+ nr_dirty,
+ bdi_thresh,
+ bdi_dirty,
+ dirty_ratelimit,
+ task_ratelimit,
+ pages_dirtied,
+ pause,
+ start_time);
+ pause = 1; /* avoid resetting nr_dirtied_pause below */
+ break;
}
+ pause = min(pause, max_pause);
+
+pause:
+ trace_balance_dirty_pages(bdi,
+ dirty_thresh,
+ background_thresh,
+ nr_dirty,
+ bdi_thresh,
+ bdi_dirty,
+ dirty_ratelimit,
+ task_ratelimit,
+ pages_dirtied,
+ pause,
+ start_time);
__set_current_state(TASK_UNINTERRUPTIBLE);
io_schedule_timeout(pause);
- trace_balance_dirty_wait(bdi);
dirty_thresh = hard_dirty_limit(dirty_thresh);
/*
* 200ms is typically more than enough to curb heavy dirtiers;
* (b) the pause time limit makes the dirtiers more responsive.
*/
- if (nr_dirty < dirty_thresh &&
- bdi_dirty < (task_bdi_thresh + bdi_thresh) / 2 &&
- time_after(jiffies, start_time + MAX_PAUSE))
+ if (nr_dirty < dirty_thresh)
break;
-
- /*
- * Increase the delay for each loop, up to our previous
- * default of taking a 100ms nap.
- */
- pause <<= 1;
- if (pause > HZ / 10)
- pause = HZ / 10;
}
- /* Clear dirty_exceeded flag only when no task can exceed the limit */
- if (clear_dirty_exceeded && bdi->dirty_exceeded)
+ if (!dirty_exceeded && bdi->dirty_exceeded)
bdi->dirty_exceeded = 0;
+ current->nr_dirtied = 0;
+ if (pause == 0) { /* in freerun area */
+ current->nr_dirtied_pause =
+ dirty_poll_interval(nr_dirty, dirty_thresh);
+ } else if (pause <= max_pause / 4 &&
+ pages_dirtied >= current->nr_dirtied_pause) {
+ current->nr_dirtied_pause = clamp_val(
+ dirty_ratelimit * (max_pause / 2) / HZ,
+ pages_dirtied + pages_dirtied / 8,
+ pages_dirtied * 4);
+ } else if (pause >= max_pause) {
+ current->nr_dirtied_pause = 1 | clamp_val(
+ dirty_ratelimit * (max_pause / 2) / HZ,
+ pages_dirtied / 4,
+ pages_dirtied - pages_dirtied / 8);
+ }
+
if (writeback_in_progress(bdi))
return;
* In normal mode, we start background writeout at the lower
* background_thresh, to keep the amount of dirty memory low.
*/
- if ((laptop_mode && pages_written) ||
- (!laptop_mode && (nr_reclaimable > background_thresh)))
+ if (laptop_mode)
+ return;
+
+ if (nr_reclaimable > background_thresh)
bdi_start_background_writeback(bdi);
}
}
}
-static DEFINE_PER_CPU(unsigned long, bdp_ratelimits) = 0;
+static DEFINE_PER_CPU(int, bdp_ratelimits);
/**
* balance_dirty_pages_ratelimited_nr - balance dirty memory state
unsigned long nr_pages_dirtied)
{
struct backing_dev_info *bdi = mapping->backing_dev_info;
- unsigned long ratelimit;
- unsigned long *p;
+ int ratelimit;
+ int *p;
if (!bdi_cap_account_dirty(bdi))
return;
- ratelimit = ratelimit_pages;
- if (mapping->backing_dev_info->dirty_exceeded)
- ratelimit = 8;
+ ratelimit = current->nr_dirtied_pause;
+ if (bdi->dirty_exceeded)
+ ratelimit = min(ratelimit, 32 >> (PAGE_SHIFT - 10));
+
+ current->nr_dirtied += nr_pages_dirtied;
+ preempt_disable();
/*
- * Check the rate limiting. Also, we do not want to throttle real-time
- * tasks in balance_dirty_pages(). Period.
+ * This prevents one CPU to accumulate too many dirtied pages without
+ * calling into balance_dirty_pages(), which can happen when there are
+ * 1000+ tasks, all of them start dirtying pages at exactly the same
+ * time, hence all honoured too large initial task->nr_dirtied_pause.
*/
- preempt_disable();
p = &__get_cpu_var(bdp_ratelimits);
- *p += nr_pages_dirtied;
- if (unlikely(*p >= ratelimit)) {
- ratelimit = sync_writeback_pages(*p);
+ if (unlikely(current->nr_dirtied >= ratelimit))
*p = 0;
- preempt_enable();
- balance_dirty_pages(mapping, ratelimit);
- return;
+ else {
+ *p += nr_pages_dirtied;
+ if (unlikely(*p >= ratelimit_pages)) {
+ *p = 0;
+ ratelimit = 0;
+ }
}
preempt_enable();
+
+ if (unlikely(current->nr_dirtied >= ratelimit))
+ balance_dirty_pages(mapping, current->nr_dirtied);
}
EXPORT_SYMBOL(balance_dirty_pages_ratelimited_nr);
* threshold
*/
if (bdi_has_dirty_io(&q->backing_dev_info))
- bdi_start_writeback(&q->backing_dev_info, nr_pages);
+ bdi_start_writeback(&q->backing_dev_info, nr_pages,
+ WB_REASON_LAPTOP_TIMER);
}
/*
*
* Here we set ratelimit_pages to a level which ensures that when all CPUs are
* dirtying in parallel, we cannot go more than 3% (1/32) over the dirty memory
- * thresholds before writeback cuts in.
- *
- * But the limit should not be set too high. Because it also controls the
- * amount of memory which the balance_dirty_pages() caller has to write back.
- * If this is too large then the caller will block on the IO queue all the
- * time. So limit it to four megabytes - the balance_dirty_pages() caller
- * will write six megabyte chunks, max.
+ * thresholds.
*/
void writeback_set_ratelimit(void)
{
- ratelimit_pages = vm_total_pages / (num_online_cpus() * 32);
+ unsigned long background_thresh;
+ unsigned long dirty_thresh;
+ global_dirty_limits(&background_thresh, &dirty_thresh);
+ ratelimit_pages = dirty_thresh / (num_online_cpus() * 32);
if (ratelimit_pages < 16)
ratelimit_pages = 16;
- if (ratelimit_pages * PAGE_CACHE_SIZE > 4096 * 1024)
- ratelimit_pages = (4096 * 1024) / PAGE_CACHE_SIZE;
}
static int __cpuinit
__inc_zone_page_state(page, NR_FILE_DIRTY);
__inc_zone_page_state(page, NR_DIRTIED);
__inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE);
+ __inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED);
task_dirty_inc(current);
task_io_account_write(PAGE_CACHE_SIZE);
}
#include <linux/ksm.h>
#include <linux/rmap.h>
#include <linux/rcupdate.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/memcontrol.h>
#include <linux/mmu_notifier.h>
#include <linux/migrate.h>
/*
* Subfunctions of try_to_unmap: try_to_unmap_one called
- * repeatedly from either try_to_unmap_anon or try_to_unmap_file.
+ * repeatedly from try_to_unmap_ksm, try_to_unmap_anon or try_to_unmap_file.
*/
int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
unsigned long address, enum ttu_flags flags)
#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/mm.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/swap.h>
static struct vfsmount *shm_mnt;
user_shm_unlock(inode->i_size, user);
info->flags &= ~VM_LOCKED;
mapping_clear_unevictable(file->f_mapping);
+ /*
+ * Ensure that a racing putback_lru_page() can see
+ * the pages of this mapping are evictable when we
+ * skip them due to !PageLRU during the scan.
+ */
+ smp_mb__after_clear_bit();
scan_mapping_unevictable_pages(file->f_mapping);
}
retval = 0;
d_instantiate(path.dentry, inode);
inode->i_size = size;
- inode->i_nlink = 0; /* It is unlinked */
+ clear_nlink(inode); /* It is unlinked */
#ifndef CONFIG_MMU
error = ramfs_nommu_expand_for_mapping(inode, size);
if (error)
#include <linux/pagemap.h>
#include <linux/pagevec.h>
#include <linux/init.h>
- #include <linux/module.h>
+ #include <linux/export.h>
#include <linux/mm_inline.h>
#include <linux/buffer_head.h> /* for try_to_release_page() */
#include <linux/percpu_counter.h>
{
if (unlikely(PageTail(page))) {
/* __split_huge_page_refcount can run under us */
- struct page *page_head = page->first_page;
- smp_rmb();
- /*
- * If PageTail is still set after smp_rmb() we can be sure
- * that the page->first_page we read wasn't a dangling pointer.
- * See __split_huge_page_refcount() smp_wmb().
- */
- if (likely(PageTail(page) && get_page_unless_zero(page_head))) {
+ struct page *page_head = compound_trans_head(page);
+
+ if (likely(page != page_head &&
+ get_page_unless_zero(page_head))) {
unsigned long flags;
/*
- * Verify that our page_head wasn't converted
- * to a a regular page before we got a
- * reference on it.
- */
- if (unlikely(!PageHead(page_head))) {
- /* PageHead is cleared after PageTail */
- smp_rmb();
- VM_BUG_ON(PageTail(page));
- goto out_put_head;
- }
- /*
- * Only run compound_lock on a valid PageHead,
- * after having it pinned with
- * get_page_unless_zero() above.
+ * page_head wasn't a dangling pointer but it
+ * may not be a head page anymore by the time
+ * we obtain the lock. That is ok as long as it
+ * can't be freed from under us.
*/
- smp_mb();
- /* page_head wasn't a dangling pointer */
flags = compound_lock_irqsave(page_head);
if (unlikely(!PageTail(page))) {
/* __split_huge_page_refcount run before us */
compound_unlock_irqrestore(page_head, flags);
VM_BUG_ON(PageHead(page_head));
- out_put_head:
if (put_page_testzero(page_head))
__put_single_page(page_head);
out_put_single:
VM_BUG_ON(page_head != page->first_page);
/*
* We can release the refcount taken by
- * get_page_unless_zero now that
- * split_huge_page_refcount is blocked on the
- * compound_lock.
+ * get_page_unless_zero() now that
+ * __split_huge_page_refcount() is blocked on
+ * the compound_lock.
*/
if (put_page_testzero(page_head))
VM_BUG_ON(1);
/* __split_huge_page_refcount will wait now */
- VM_BUG_ON(atomic_read(&page->_count) <= 0);
- atomic_dec(&page->_count);
+ VM_BUG_ON(page_mapcount(page) <= 0);
+ atomic_dec(&page->_mapcount);
VM_BUG_ON(atomic_read(&page_head->_count) <= 0);
+ VM_BUG_ON(atomic_read(&page->_count) != 0);
compound_unlock_irqrestore(page_head, flags);
if (put_page_testzero(page_head)) {
if (PageHead(page_head))
}
EXPORT_SYMBOL(put_page);
+/*
+ * This function is exported but must not be called by anything other
+ * than get_page(). It implements the slow path of get_page().
+ */
+bool __get_page_tail(struct page *page)
+{
+ /*
+ * This takes care of get_page() if run on a tail page
+ * returned by one of the get_user_pages/follow_page variants.
+ * get_user_pages/follow_page itself doesn't need the compound
+ * lock because it runs __get_page_tail_foll() under the
+ * proper PT lock that already serializes against
+ * split_huge_page().
+ */
+ unsigned long flags;
+ bool got = false;
+ struct page *page_head = compound_trans_head(page);
+
+ if (likely(page != page_head && get_page_unless_zero(page_head))) {
+ /*
+ * page_head wasn't a dangling pointer but it
+ * may not be a head page anymore by the time
+ * we obtain the lock. That is ok as long as it
+ * can't be freed from under us.
+ */
+ flags = compound_lock_irqsave(page_head);
+ /* here __split_huge_page_refcount won't run anymore */
+ if (likely(PageTail(page))) {
+ __get_page_tail_foll(page, false);
+ got = true;
+ }
+ compound_unlock_irqrestore(page_head, flags);
+ if (unlikely(!got))
+ put_page(page_head);
+ }
+ return got;
+}
+EXPORT_SYMBOL(__get_page_tail);
+
/**
* put_pages_list() - release a list of pages
* @pages: list of pages threaded on page->lru
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
- #include <linux/module.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
#include <linux/security.h>
oom_score_adj = test_set_oom_score_adj(OOM_SCORE_ADJ_MAX);
err = try_to_unuse(type);
- test_set_oom_score_adj(oom_score_adj);
+ compare_swap_oom_score_adj(OOM_SCORE_ADJ_MAX, oom_score_adj);
if (err) {
/*
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <linux/netpoll.h>
+ #include <linux/export.h>
#include "vlan.h"
-bool vlan_do_receive(struct sk_buff **skbp)
+bool vlan_do_receive(struct sk_buff **skbp, bool last_handler)
{
struct sk_buff *skb = *skbp;
u16 vlan_id = skb->vlan_tci & VLAN_VID_MASK;
vlan_dev = vlan_find_dev(skb->dev, vlan_id);
if (!vlan_dev) {
- if (vlan_id)
+ /* Only the last call to vlan_do_receive() should change
+ * pkt_type to PACKET_OTHERHOST
+ */
+ if (vlan_id && last_handler)
skb->pkt_type = PACKET_OTHERHOST;
return false;
}
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
+ #include <linux/export.h>
#include "udp_impl.h"
struct udp_table udplite_table __read_mostly;
};
#ifdef CONFIG_PROC_FS
+
+static const struct file_operations udplite_afinfo_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = udp_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net
+};
+
static struct udp_seq_afinfo udplite4_seq_afinfo = {
.name = "udplite",
.family = AF_INET,
.udp_table = &udplite_table,
- .seq_fops = {
- .owner = THIS_MODULE,
- },
+ .seq_fops = &udplite_afinfo_seq_fops,
.seq_ops = {
.show = udp4_seq_show,
},
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+ #include <linux/export.h>
/* Set to 3 to get tracing... */
#define ACONF_DEBUG 2
ip6_route_add(&cfg);
}
+
+static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
+ int plen,
+ const struct net_device *dev,
+ u32 flags, u32 noflags)
+{
+ struct fib6_node *fn;
+ struct rt6_info *rt = NULL;
+ struct fib6_table *table;
+
+ table = fib6_get_table(dev_net(dev), RT6_TABLE_PREFIX);
+ if (table == NULL)
+ return NULL;
+
+ write_lock_bh(&table->tb6_lock);
+ fn = fib6_locate(&table->tb6_root, pfx, plen, NULL, 0);
+ if (!fn)
+ goto out;
+ for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
+ if (rt->rt6i_dev->ifindex != dev->ifindex)
+ continue;
+ if ((rt->rt6i_flags & flags) != flags)
+ continue;
+ if ((noflags != 0) && ((rt->rt6i_flags & flags) != 0))
+ continue;
+ dst_hold(&rt->dst);
+ break;
+ }
+out:
+ write_unlock_bh(&table->tb6_lock);
+ return rt;
+}
+
+
/* Create "default" multicast route to the interface */
static void addrconf_add_mroute(struct net_device *dev)
if (addrconf_finite_timeout(rt_expires))
rt_expires *= HZ;
- rt = rt6_lookup(net, &pinfo->prefix, NULL,
- dev->ifindex, 1);
+ rt = addrconf_get_prefix_route(&pinfo->prefix,
+ pinfo->prefix_len,
+ dev,
+ RTF_ADDRCONF | RTF_PREFIX_RT,
+ RTF_GATEWAY | RTF_DEFAULT);
- if (rt && addrconf_is_prefix_route(rt)) {
+ if (rt) {
/* Autoconf prefix route */
if (valid_lft == 0) {
ip6_del_rt(rt);
#include <linux/ipv6.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
+ #include <linux/export.h>
#include <net/dst.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
.pinet6 = (struct ipv6_pinfo *) &fake_pinfo,
};
const void *sk = strict ? &fake_sk : NULL;
-
- *dst = ip6_route_output(net, sk, &fl->u.ip6);
- return (*dst)->error;
+ struct dst_entry *result;
+ int err;
+
+ result = ip6_route_output(net, sk, &fl->u.ip6);
+ err = result->error;
+ if (err)
+ dst_release(result);
+ else
+ *dst = result;
+ return err;
}
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
#include <linux/capability.h>
#include <linux/errno.h>
+ #include <linux/export.h>
#include <linux/types.h>
#include <linux/times.h>
#include <linux/socket.h>
rt->dst.output = ip6_output;
dst_set_neighbour(&rt->dst, neigh);
atomic_set(&rt->dst.__refcnt, 1);
- dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
-
ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
rt->rt6i_dst.plen = 128;
rt->rt6i_idev = idev;
+ dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
spin_lock_bh(&icmp6_dst_lock);
rt->dst.next = icmp6_dst_gc_list;
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
+ #include <linux/export.h>
#include "udp_impl.h"
static int udplitev6_rcv(struct sk_buff *skb)
}
#ifdef CONFIG_PROC_FS
+
+static const struct file_operations udplite6_afinfo_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = udp_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net
+};
+
static struct udp_seq_afinfo udplite6_seq_afinfo = {
.name = "udplite6",
.family = AF_INET6,
.udp_table = &udplite_table,
- .seq_fops = {
- .owner = THIS_MODULE,
- },
+ .seq_fops = &udplite6_afinfo_seq_fops,
.seq_ops = {
.show = udp6_seq_show,
},
#include <linux/threads.h>
#include <linux/interrupt.h>
+ #include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
char *names, *p;
size_t buf_len, name_len;
unsigned int i;
+ const uintptr_t user_ptrval = ue->info.value.enumerated.names_ptr;
if (ue->info.value.enumerated.names_length > 64 * 1024)
return -EINVAL;
- names = memdup_user(
- (const void __user *)ue->info.value.enumerated.names_ptr,
+ names = memdup_user((const void __user *)user_ptrval,
ue->info.value.enumerated.names_length);
if (IS_ERR(names))
return PTR_ERR(names);
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/mutex.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/minors.h>
if (get_user(device, (int __user *)arg))
return -EFAULT;
mutex_lock(®ister_mutex);
- device = device < 0 ? 0 : device + 1;
+
+ if (device < 0)
+ device = 0;
+ else if (device < SNDRV_MINOR_HWDEPS)
+ device++;
+ else
+ device = SNDRV_MINOR_HWDEPS;
+
while (device < SNDRV_MINOR_HWDEPS) {
if (snd_hwdep_search(card, device))
break;
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/firmware.h>
+ #include <linux/export.h>
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"
}
if (!fw->size)
return 0;
- if (size < fw->size)
- size = fw->size;
for (len = 0; len < fw->size; len++) {
if (!*p)
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
- #include <linux/moduleparam.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/jack.h>
#include "hda_codec.h"
unsigned int caps, config;
int pin_idx;
struct hdmi_spec_per_pin *per_pin;
- struct hdmi_eld *eld;
int err;
caps = snd_hda_param_read(codec, pin_nid, AC_PAR_PIN_CAP);
pin_idx = spec->num_pins;
per_pin = &spec->pins[pin_idx];
- eld = &per_pin->sink_eld;
per_pin->pin_nid = pin_nid;
struct snd_pcm_substream *substream)
{
int chs;
- unsigned int dataDCC1, dataDCC2, channel_id;
+ unsigned int dataDCC2, channel_id;
int i;
struct hdmi_spec *spec = codec->spec;
struct hda_spdif_out *spdif =
chs = substream->runtime->channels;
- dataDCC1 = AC_DIG1_ENABLE | AC_DIG1_COPYRIGHT;
dataDCC2 = 0x2;
/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/jack.h>
#include "hda_codec.h"
static void alc_auto_parse_digital(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
- int i, err;
+ int i, err, nums;
hda_nid_t dig_nid;
/* support multiple SPDIFs; the secondary is set up as a slave */
+ nums = 0;
for (i = 0; i < spec->autocfg.dig_outs; i++) {
hda_nid_t conn[4];
err = snd_hda_get_connections(codec,
spec->autocfg.dig_out_pins[i],
conn, ARRAY_SIZE(conn));
- if (err < 0)
+ if (err <= 0)
continue;
dig_nid = conn[0]; /* assume the first element is audio-out */
- if (!i) {
+ if (!nums) {
spec->multiout.dig_out_nid = dig_nid;
spec->dig_out_type = spec->autocfg.dig_out_type[0];
} else {
spec->multiout.slave_dig_outs = spec->slave_dig_outs;
- if (i >= ARRAY_SIZE(spec->slave_dig_outs) - 1)
+ if (nums >= ARRAY_SIZE(spec->slave_dig_outs) - 1)
break;
- spec->slave_dig_outs[i - 1] = dig_nid;
+ spec->slave_dig_outs[nums - 1] = dig_nid;
}
+ nums++;
}
if (spec->autocfg.dig_in_pin) {
struct alc_spec *spec = codec->spec;
struct hda_pcm *info = spec->pcm_rec;
const struct hda_pcm_stream *p;
+ bool have_multi_adcs;
int i;
codec->num_pcms = 1;
/* If the use of more than one ADC is requested for the current
* model, configure a second analog capture-only PCM.
*/
+ have_multi_adcs = (spec->num_adc_nids > 1) &&
+ !spec->dyn_adc_switch && !spec->auto_mic &&
+ (!spec->input_mux || spec->input_mux->num_items > 1);
/* Additional Analaog capture for index #2 */
- if (spec->alt_dac_nid || spec->num_adc_nids > 1) {
+ if (spec->alt_dac_nid || have_multi_adcs) {
codec->num_pcms = 3;
info = spec->pcm_rec + 2;
info->name = spec->stream_name_analog;
alc_pcm_null_stream;
info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = 0;
}
- if (spec->num_adc_nids > 1) {
+ if (have_multi_adcs) {
p = spec->stream_analog_alt_capture;
if (!p)
p = &alc_pcm_analog_alt_capture;
hda_nid_t *adc_nids = spec->private_adc_nids;
hda_nid_t *cap_nids = spec->private_capsrc_nids;
int max_nums = ARRAY_SIZE(spec->private_adc_nids);
- bool indep_capsrc = false;
int i, nums = 0;
nid = codec->start_nid;
break;
if (type == AC_WID_AUD_SEL) {
cap_nids[nums] = src;
- indep_capsrc = true;
break;
}
n = snd_hda_get_conn_list(codec, src, &list);
if (n > 1) {
cap_nids[nums] = src;
- indep_capsrc = true;
break;
} else if (n != 1)
break;
if (nid)
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
AMP_OUT_ZERO);
+
+ /* unmute DAC if it's not assigned to a mixer */
+ nid = alc_look_for_out_mute_nid(codec, pin, dac);
+ if (nid == mix && nid_has_mute(codec, dac, HDA_OUTPUT))
+ snd_hda_codec_write(codec, dac, 0, AC_VERB_SET_AMP_GAIN_MUTE,
+ AMP_OUT_ZERO);
}
static void alc_auto_init_multi_out(struct hda_codec *codec)
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/dmi.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/asoundef.h>
#include <sound/jack.h>
}
-static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out, hda_nid_t dig_in)
+static int stac92xx_parse_auto_config(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
+ hda_nid_t dig_out = 0, dig_in = 0;
int hp_swap = 0;
int i, err;
if (spec->multiout.max_channels > 2)
spec->surr_switch = 1;
+ /* find digital out and in converters */
+ for (i = codec->start_nid; i < codec->start_nid + codec->num_nodes; i++) {
+ unsigned int wid_caps = get_wcaps(codec, i);
+ if (wid_caps & AC_WCAP_DIGITAL) {
+ switch (get_wcaps_type(wid_caps)) {
+ case AC_WID_AUD_OUT:
+ if (!dig_out)
+ dig_out = i;
+ break;
+ case AC_WID_AUD_IN:
+ if (!dig_in)
+ dig_in = i;
+ break;
+ }
+ }
+ }
if (spec->autocfg.dig_outs)
spec->multiout.dig_out_nid = dig_out;
if (dig_in && spec->autocfg.dig_in_pin)
spec->capvols = stac925x_capvols;
spec->capsws = stac925x_capsws;
- err = stac92xx_parse_auto_config(codec, 0x8, 0x7);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
spec->num_pwrs = ARRAY_SIZE(stac92hd73xx_pwr_nids);
spec->pwr_nids = stac92hd73xx_pwr_nids;
- err = stac92xx_parse_auto_config(codec, 0x25, 0x27);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
stac92xx_set_config_regs(codec,
stac92hd83xxx_brd_tbl[spec->board_config]);
- switch (codec->vendor_id) {
- case 0x111d76d1:
- case 0x111d76d9:
- case 0x111d76df:
- case 0x111d76e5:
- case 0x111d7666:
- case 0x111d7667:
- case 0x111d7668:
- case 0x111d7669:
- case 0x111d76e3:
- case 0x111d7604:
- case 0x111d76d4:
- case 0x111d7605:
- case 0x111d76d5:
- case 0x111d76e7:
- if (spec->board_config == STAC_92HD83XXX_PWR_REF)
- break;
+ if (spec->board_config != STAC_92HD83XXX_PWR_REF)
spec->num_pwrs = 0;
- break;
- }
codec->patch_ops = stac92xx_patch_ops;
}
#endif
- err = stac92xx_parse_auto_config(codec, 0x1d, 0);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
spec->multiout.dac_nids = spec->dac_nids;
- err = stac92xx_parse_auto_config(codec, 0x21, 0);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
spec->multiout.dac_nids = spec->dac_nids;
- err = stac92xx_parse_auto_config(codec, 0x08, 0x09);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
spec->aloopback_shift = 0;
spec->eapd_switch = 1;
- err = stac92xx_parse_auto_config(codec, 0x1e, 0x20);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
break;
}
- err = stac92xx_parse_auto_config(codec, 0x1f, 0x20);
+ err = stac92xx_parse_auto_config(codec);
if (!err) {
if (spec->board_config < 0) {
printk(KERN_WARNING "hda_codec: No auto-config is "
spec->capvols = stac9872_capvols;
spec->capsws = stac9872_capsws;
- err = stac92xx_parse_auto_config(codec, 0x10, 0x12);
+ err = stac92xx_parse_auto_config(codec);
if (err < 0) {
stac92xx_free(codec);
return -EINVAL;
{ .id = 0x111d76e3, .name = "92HD98BXX", .patch = patch_stac92hd83xxx},
{ .id = 0x111d76e5, .name = "92HD99BXX", .patch = patch_stac92hd83xxx},
{ .id = 0x111d76e7, .name = "92HD90BXX", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76e8, .name = "92HD66B1X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76e9, .name = "92HD66B2X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76ea, .name = "92HD66B3X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76eb, .name = "92HD66C1X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76ec, .name = "92HD66C2X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76ed, .name = "92HD66C3X5", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76ee, .name = "92HD66B1X3", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76ef, .name = "92HD66B2X3", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76f0, .name = "92HD66B3X3", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76f1, .name = "92HD66C1X3", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76f2, .name = "92HD66C2X3", .patch = patch_stac92hd83xxx},
+ { .id = 0x111d76f3, .name = "92HD66C3/65", .patch = patch_stac92hd83xxx},
{} /* terminator */
};
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/asoundef.h>
#include "hda_codec.h"
static void set_widgets_power_state_vt1812(struct hda_codec *codec)
{
struct via_spec *spec = codec->spec;
- int imux_is_smixer =
- snd_hda_codec_read(codec, 0x13, 0, AC_VERB_GET_CONNECT_SEL, 0x00) == 3;
unsigned int parm;
unsigned int present;
- /* MUX10 (1eh) = stereo mixer */
- imux_is_smixer =
- snd_hda_codec_read(codec, 0x1e, 0, AC_VERB_GET_CONNECT_SEL, 0x00) == 5;
/* inputs */
/* PW 5/6/7 (29h/2ah/2bh) */
parm = AC_PWRST_D3;
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
- #include <linux/moduleparam.h>
+ #include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
+#ifdef CONFIG_KVM_GUEST
+#include <linux/kvm_para.h>
+#else
+#define kvm_para_available() (0)
+#endif
+
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
MODULE_LICENSE("GPL");
static int buggy_irq = -1; /* auto-check */
static int xbox;
static int spdif_aclink = -1;
+static int inside_vm = -1;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
module_param(spdif_aclink, int, 0444);
MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
+module_param(inside_vm, bool, 0444);
+MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
/* just for backward compatibility */
static int enable;
unsigned buggy_irq: 1; /* workaround for buggy mobos */
unsigned xbox: 1; /* workaround for Xbox AC'97 detection */
unsigned buggy_semaphore: 1; /* workaround for buggy codec semaphore */
+ unsigned inside_vm: 1; /* enable VM optimization */
int spdif_idx; /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
unsigned int sdm_saved; /* SDM reg value */
udelay(10);
continue;
}
- if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
- ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
+ if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
+ continue;
+ if (chip->inside_vm)
+ break;
+ if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
break;
} while (timeout--);
ptr = ichdev->last_pos;
if (xbox)
chip->xbox = 1;
+ chip->inside_vm = inside_vm;
+ if (inside_vm)
+ printk(KERN_INFO "intel8x0: enable KVM optimization\n");
+
if (pci->vendor == PCI_VENDOR_ID_INTEL &&
pci->device == PCI_DEVICE_ID_INTEL_440MX)
chip->fix_nocache = 1; /* enable workaround */
buggy_irq = 0;
}
+ if (inside_vm < 0) {
+ /* detect KVM and Parallels virtual environments */
+ inside_vm = kvm_para_available();
+#if defined(__i386__) || defined(__x86_64__)
+ inside_vm = inside_vm || boot_cpu_has(X86_FEATURE_HYPERVISOR);
+#endif
+ }
+
if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
&chip)) < 0) {
snd_card_free(card);
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/firmware.h>
- #include <linux/moduleparam.h>
+ #include <linux/module.h>
#include <linux/math64.h>
#include <sound/core.h>
#define HDSP_PROGRAM 0x020
#define HDSP_CONFIG_MODE_0 0x040
#define HDSP_CONFIG_MODE_1 0x080
-#define HDSP_VERSION_BIT 0x100
+#define HDSP_VERSION_BIT (0x100 | HDSP_S_LOAD)
#define HDSP_BIGENDIAN_MODE 0x200
#define HDSP_RD_MULTIPLE 0x400
#define HDSP_9652_ENABLE_MIXER 0x800
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
- #include <linux/moduleparam.h>
+ #include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/math64.h>
#define HDSPM_DMA_AREA_BYTES (HDSPM_MAX_CHANNELS * HDSPM_CHANNEL_BUFFER_BYTES)
#define HDSPM_DMA_AREA_KILOBYTES (HDSPM_DMA_AREA_BYTES/1024)
-/* revisions >= 230 indicate AES32 card */
-#define HDSPM_MADI_ANCIENT_REV 204
-#define HDSPM_MADI_OLD_REV 207
-#define HDSPM_MADI_REV 210
#define HDSPM_RAYDAT_REV 211
#define HDSPM_AIO_REV 212
#define HDSPM_MADIFACE_REV 213
-#define HDSPM_AES_REV 240
-#define HDSPM_AES32_REV 234
-#define HDSPM_AES32_OLD_REV 233
/* speed factor modes */
#define HDSPM_SPEED_SINGLE 0
status.card_specific.madi.madi_input =
(statusregister & HDSPM_AB_int) ? 1 : 0;
status.card_specific.madi.channel_format =
- (statusregister & HDSPM_TX_64ch) ? 1 : 0;
+ (statusregister & HDSPM_RX_64ch) ? 1 : 0;
/* TODO: Mac driver sets it when f_s>48kHz */
status.card_specific.madi.frame_format = 0;
strcpy(card->driver, "HDSPM");
switch (hdspm->firmware_rev) {
- case HDSPM_MADI_REV:
- case HDSPM_MADI_OLD_REV:
- case HDSPM_MADI_ANCIENT_REV:
- hdspm->io_type = MADI;
- hdspm->card_name = "RME MADI";
- hdspm->midiPorts = 3;
- break;
case HDSPM_RAYDAT_REV:
hdspm->io_type = RayDAT;
hdspm->card_name = "RME RayDAT";
hdspm->card_name = "RME MADIface";
hdspm->midiPorts = 1;
break;
- case HDSPM_AES_REV:
- case HDSPM_AES32_REV:
- case HDSPM_AES32_OLD_REV:
- hdspm->io_type = AES32;
- hdspm->card_name = "RME AES32";
- hdspm->midiPorts = 2;
- break;
default:
- snd_printk(KERN_ERR "HDSPM: unknown firmware revision %x\n",
+ if ((hdspm->firmware_rev == 0xf0) ||
+ ((hdspm->firmware_rev >= 0xe6) &&
+ (hdspm->firmware_rev <= 0xea))) {
+ hdspm->io_type = AES32;
+ hdspm->card_name = "RME AES32";
+ hdspm->midiPorts = 2;
+ } else if ((hdspm->firmware_rev == 0xd5) ||
+ ((hdspm->firmware_rev >= 0xc8) &&
+ (hdspm->firmware_rev <= 0xcf))) {
+ hdspm->io_type = MADI;
+ hdspm->card_name = "RME MADI";
+ hdspm->midiPorts = 3;
+ } else {
+ snd_printk(KERN_ERR
+ "HDSPM: unknown firmware revision %x\n",
hdspm->firmware_rev);
- return -ENODEV;
+ return -ENODEV;
+ }
}
err = pci_enable_device(pci);
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/clk.h>
+ #include <linux/module.h>
#include <sound/soc.h>
writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+ if (!dma_data->ops)
+ dma_data->ops = samsung_dma_get_ops();
+
+ dma_data->ops->started(dma_data->channel);
return 0;
}
writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+ if (!dma_data->ops)
+ dma_data->ops = samsung_dma_get_ops();
+
+ dma_data->ops->started(dma_data->channel);
return 0;
}
#include <linux/slab.h>
#include <linux/dma-mapping.h>
+ #include <linux/module.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
spinlock_t lock;
int state;
unsigned int dma_loaded;
- unsigned int dma_limit;
unsigned int dma_period;
dma_addr_t dma_start;
dma_addr_t dma_pos;
struct s3c_dma_params *params;
};
+static void audio_buffdone(void *data);
+
/* dma_enqueue
*
* place a dma buffer onto the queue for the dma system
* to handle.
-*/
+ */
static void dma_enqueue(struct snd_pcm_substream *substream)
{
struct runtime_data *prtd = substream->runtime->private_data;
dma_addr_t pos = prtd->dma_pos;
unsigned int limit;
- int ret;
+ struct samsung_dma_prep_info dma_info;
pr_debug("Entered %s\n", __func__);
- if (s3c_dma_has_circular())
- limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
- else
- limit = prtd->dma_limit;
+ limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
pr_debug("%s: loaded %d, limit %d\n",
__func__, prtd->dma_loaded, limit);
- while (prtd->dma_loaded < limit) {
- unsigned long len = prtd->dma_period;
+ dma_info.cap = (samsung_dma_has_circular() ? DMA_CYCLIC : DMA_SLAVE);
+ dma_info.direction =
+ (substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+ ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+ dma_info.fp = audio_buffdone;
+ dma_info.fp_param = substream;
+ dma_info.period = prtd->dma_period;
+ dma_info.len = prtd->dma_period*limit;
+ while (prtd->dma_loaded < limit) {
pr_debug("dma_loaded: %d\n", prtd->dma_loaded);
- if ((pos + len) > prtd->dma_end) {
- len = prtd->dma_end - pos;
- pr_debug("%s: corrected dma len %ld\n", __func__, len);
+ if ((pos + dma_info.period) > prtd->dma_end) {
+ dma_info.period = prtd->dma_end - pos;
+ pr_debug("%s: corrected dma len %ld\n",
+ __func__, dma_info.period);
}
- ret = s3c2410_dma_enqueue(prtd->params->channel,
- substream, pos, len);
+ dma_info.buf = pos;
+ prtd->params->ops->prepare(prtd->params->ch, &dma_info);
- if (ret == 0) {
- prtd->dma_loaded++;
- pos += prtd->dma_period;
- if (pos >= prtd->dma_end)
- pos = prtd->dma_start;
- } else
- break;
+ prtd->dma_loaded++;
+ pos += prtd->dma_period;
+ if (pos >= prtd->dma_end)
+ pos = prtd->dma_start;
}
prtd->dma_pos = pos;
}
-static void audio_buffdone(struct s3c2410_dma_chan *channel,
- void *dev_id, int size,
- enum s3c2410_dma_buffresult result)
+static void audio_buffdone(void *data)
{
- struct snd_pcm_substream *substream = dev_id;
- struct runtime_data *prtd;
+ struct snd_pcm_substream *substream = data;
+ struct runtime_data *prtd = substream->runtime->private_data;
pr_debug("Entered %s\n", __func__);
- if (result == S3C2410_RES_ABORT || result == S3C2410_RES_ERR)
- return;
-
- prtd = substream->runtime->private_data;
+ if (prtd->state & ST_RUNNING) {
+ prtd->dma_pos += prtd->dma_period;
+ if (prtd->dma_pos >= prtd->dma_end)
+ prtd->dma_pos = prtd->dma_start;
- if (substream)
- snd_pcm_period_elapsed(substream);
+ if (substream)
+ snd_pcm_period_elapsed(substream);
- spin_lock(&prtd->lock);
- if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
- prtd->dma_loaded--;
- dma_enqueue(substream);
+ spin_lock(&prtd->lock);
+ if (!samsung_dma_has_circular()) {
+ prtd->dma_loaded--;
+ dma_enqueue(substream);
+ }
+ spin_unlock(&prtd->lock);
}
-
- spin_unlock(&prtd->lock);
}
static int dma_hw_params(struct snd_pcm_substream *substream,
unsigned long totbytes = params_buffer_bytes(params);
struct s3c_dma_params *dma =
snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
- int ret = 0;
-
+ struct samsung_dma_info dma_info;
pr_debug("Entered %s\n", __func__);
pr_debug("params %p, client %p, channel %d\n", prtd->params,
prtd->params->client, prtd->params->channel);
- ret = s3c2410_dma_request(prtd->params->channel,
- prtd->params->client, NULL);
-
- if (ret < 0) {
- printk(KERN_ERR "failed to get dma channel\n");
- return ret;
- }
-
- /* use the circular buffering if we have it available. */
- if (s3c_dma_has_circular())
- s3c2410_dma_setflags(prtd->params->channel,
- S3C2410_DMAF_CIRCULAR);
+ prtd->params->ops = samsung_dma_get_ops();
+
+ dma_info.cap = (samsung_dma_has_circular() ?
+ DMA_CYCLIC : DMA_SLAVE);
+ dma_info.client = prtd->params->client;
+ dma_info.direction =
+ (substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+ ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+ dma_info.width = prtd->params->dma_size;
+ dma_info.fifo = prtd->params->dma_addr;
+ prtd->params->ch = prtd->params->ops->request(
+ prtd->params->channel, &dma_info);
}
- s3c2410_dma_set_buffdone_fn(prtd->params->channel,
- audio_buffdone);
-
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = totbytes;
spin_lock_irq(&prtd->lock);
prtd->dma_loaded = 0;
- prtd->dma_limit = runtime->hw.periods_min;
prtd->dma_period = params_period_bytes(params);
prtd->dma_start = runtime->dma_addr;
prtd->dma_pos = prtd->dma_start;
pr_debug("Entered %s\n", __func__);
- /* TODO - do we need to ensure DMA flushed */
snd_pcm_set_runtime_buffer(substream, NULL);
if (prtd->params) {
- s3c2410_dma_free(prtd->params->channel, prtd->params->client);
+ prtd->params->ops->flush(prtd->params->ch);
+ prtd->params->ops->release(prtd->params->ch,
+ prtd->params->client);
prtd->params = NULL;
}
if (!prtd->params)
return 0;
- /* channel needs configuring for mem=>device, increment memory addr,
- * sync to pclk, half-word transfers to the IIS-FIFO. */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM,
- prtd->params->dma_addr);
- } else {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW,
- prtd->params->dma_addr);
- }
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size);
-
/* flush the DMA channel */
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
+ prtd->params->ops->flush(prtd->params->ch);
+
prtd->dma_loaded = 0;
prtd->dma_pos = prtd->dma_start;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
prtd->state |= ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_START);
+ prtd->params->ops->trigger(prtd->params->ch);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
prtd->state &= ~ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_STOP);
+ prtd->params->ops->stop(prtd->params->ch);
break;
default:
struct snd_pcm_runtime *runtime = substream->runtime;
struct runtime_data *prtd = runtime->private_data;
unsigned long res;
- dma_addr_t src, dst;
pr_debug("Entered %s\n", __func__);
- spin_lock(&prtd->lock);
- s3c2410_dma_getposition(prtd->params->channel, &src, &dst);
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- res = dst - prtd->dma_start;
- else
- res = src - prtd->dma_start;
-
- spin_unlock(&prtd->lock);
+ res = prtd->dma_pos - prtd->dma_start;
- pr_debug("Pointer %x %x\n", src, dst);
+ pr_debug("Pointer offset: %lu\n", res);
/* we seem to be getting the odd error from the pcm library due
* to out-of-bounds pointers. this is maybe due to the dma engine
git.openpandora.org / pandora-kernel.git / commitdiff