#include <linux/root_dev.h>
#include <linux/nodemask.h>
#include <linux/pm.h>
+#include <linux/efi.h>
#include <asm/io.h>
#include <asm/sal.h>
#define MAX_PHYS_MEMORY (1UL << IA64_MAX_PHYS_BITS) /* Max physical address supported */
-lboard_t *root_lboard[MAX_COMPACT_NODES];
-
extern void bte_init_node(nodepda_t *, cnodeid_t);
extern void sn_timer_init(void);
extern void (*ia64_mark_idle) (int);
extern void snidle(int);
extern unsigned char acpi_kbd_controller_present;
+extern unsigned long long (*ia64_printk_clock)(void);
unsigned long sn_rtc_cycles_per_second;
EXPORT_SYMBOL(sn_rtc_cycles_per_second);
EXPORT_SYMBOL(sn_region_size);
int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */
-short physical_node_map[MAX_PHYSNODE_ID];
+short physical_node_map[MAX_NUMALINK_NODES];
static unsigned long sn_prom_features[MAX_PROM_FEATURE_SETS];
EXPORT_SYMBOL(physical_node_map);
-int numionodes;
+int num_cnodes;
static void sn_init_pdas(char **);
-static void scan_for_ionodes(void);
+static void build_cnode_tables(void);
static nodepda_t *nodepdaindr[MAX_COMPACT_NODES];
.orig_video_points = 16
};
-/*
- * This is here so we can use the CMOS detection in ide-probe.c to
- * determine what drives are present. In theory, we don't need this
- * as the auto-detection could be done via ide-probe.c:do_probe() but
- * in practice that would be much slower, which is painful when
- * running in the simulator. Note that passing zeroes in DRIVE_INFO
- * is sufficient (the IDE driver will autodetect the drive geometry).
- */
-#ifdef CONFIG_IA64_GENERIC
-extern char drive_info[4 * 16];
-#else
-char drive_info[4 * 16];
-#endif
-
-/*
- * Get nasid of current cpu early in boot before nodepda is initialized
- */
-static int
-boot_get_nasid(void)
-{
- int nasid;
-
- if (ia64_sn_get_sapic_info(get_sapicid(), &nasid, NULL, NULL))
- BUG();
- return nasid;
-}
-
/*
* This routine can only be used during init, since
* smp_boot_data is an init data structure.
}
extern int platform_intr_list[];
-extern nasid_t master_nasid;
-static int __initdata shub_1_1_found = 0;
+static int __initdata shub_1_1_found;
/*
* sn_check_for_wars
}
}
+/*
+ * Scan the EFI PCDP table (if it exists) for an acceptable VGA console
+ * output device. If one exists, pick it and set sn_legacy_{io,mem} to
+ * reflect the bus offsets needed to address it.
+ *
+ * Since pcdp support in SN is not supported in the 2.4 kernel (or at least
+ * the one lbs is based on) just declare the needed structs here.
+ *
+ * Reference spec http://www.dig64.org/specifications/DIG64_PCDPv20.pdf
+ *
+ * Returns 0 if no acceptable vga is found, !0 otherwise.
+ *
+ * Note: This stuff is duped here because Altix requires the PCDP to
+ * locate a usable VGA device due to lack of proper ACPI support. Structures
+ * could be used from drivers/firmware/pcdp.h, but it was decided that moving
+ * this file to a more public location just for Altix use was undesireable.
+ */
+
+struct hcdp_uart_desc {
+ u8 pad[45];
+};
+
+struct pcdp {
+ u8 signature[4]; /* should be 'HCDP' */
+ u32 length;
+ u8 rev; /* should be >=3 for pcdp, <3 for hcdp */
+ u8 sum;
+ u8 oem_id[6];
+ u64 oem_tableid;
+ u32 oem_rev;
+ u32 creator_id;
+ u32 creator_rev;
+ u32 num_type0;
+ struct hcdp_uart_desc uart[0]; /* num_type0 of these */
+ /* pcdp descriptors follow */
+} __attribute__((packed));
+
+struct pcdp_device_desc {
+ u8 type;
+ u8 primary;
+ u16 length;
+ u16 index;
+ /* interconnect specific structure follows */
+ /* device specific structure follows that */
+} __attribute__((packed));
+
+struct pcdp_interface_pci {
+ u8 type; /* 1 == pci */
+ u8 reserved;
+ u16 length;
+ u8 segment;
+ u8 bus;
+ u8 dev;
+ u8 fun;
+ u16 devid;
+ u16 vendid;
+ u32 acpi_interrupt;
+ u64 mmio_tra;
+ u64 ioport_tra;
+ u8 flags;
+ u8 translation;
+} __attribute__((packed));
+
+struct pcdp_vga_device {
+ u8 num_eas_desc;
+ /* ACPI Extended Address Space Desc follows */
+} __attribute__((packed));
+
+/* from pcdp_device_desc.primary */
+#define PCDP_PRIMARY_CONSOLE 0x01
+
+/* from pcdp_device_desc.type */
+#define PCDP_CONSOLE_INOUT 0x0
+#define PCDP_CONSOLE_DEBUG 0x1
+#define PCDP_CONSOLE_OUT 0x2
+#define PCDP_CONSOLE_IN 0x3
+#define PCDP_CONSOLE_TYPE_VGA 0x8
+
+#define PCDP_CONSOLE_VGA (PCDP_CONSOLE_TYPE_VGA | PCDP_CONSOLE_OUT)
+
+/* from pcdp_interface_pci.type */
+#define PCDP_IF_PCI 1
+
+/* from pcdp_interface_pci.translation */
+#define PCDP_PCI_TRANS_IOPORT 0x02
+#define PCDP_PCI_TRANS_MMIO 0x01
+
+static void
+sn_scan_pcdp(void)
+{
+ u8 *bp;
+ struct pcdp *pcdp;
+ struct pcdp_device_desc device;
+ struct pcdp_interface_pci if_pci;
+ extern struct efi efi;
+
+ pcdp = efi.hcdp;
+ if (! pcdp)
+ return; /* no hcdp/pcdp table */
+
+ if (pcdp->rev < 3)
+ return; /* only support PCDP (rev >= 3) */
+
+ for (bp = (u8 *)&pcdp->uart[pcdp->num_type0];
+ bp < (u8 *)pcdp + pcdp->length;
+ bp += device.length) {
+ memcpy(&device, bp, sizeof(device));
+ if (! (device.primary & PCDP_PRIMARY_CONSOLE))
+ continue; /* not primary console */
+
+ if (device.type != PCDP_CONSOLE_VGA)
+ continue; /* not VGA descriptor */
+
+ memcpy(&if_pci, bp+sizeof(device), sizeof(if_pci));
+ if (if_pci.type != PCDP_IF_PCI)
+ continue; /* not PCI interconnect */
+
+ if (if_pci.translation & PCDP_PCI_TRANS_IOPORT)
+ vga_console_iobase =
+ if_pci.ioport_tra | __IA64_UNCACHED_OFFSET;
+
+ if (if_pci.translation & PCDP_PCI_TRANS_MMIO)
+ vga_console_membase =
+ if_pci.mmio_tra | __IA64_UNCACHED_OFFSET;
+
+ break; /* once we find the primary, we're done */
+ }
+}
+
+static unsigned long sn2_rtc_initial;
+
+static unsigned long long ia64_sn2_printk_clock(void)
+{
+ unsigned long rtc_now = rtc_time();
+
+ return (rtc_now - sn2_rtc_initial) *
+ (1000000000 / sn_rtc_cycles_per_second);
+}
+
/**
* sn_setup - SN platform setup routine
* @cmdline_p: kernel command line
void __init sn_setup(char **cmdline_p)
{
long status, ticks_per_sec, drift;
- int pxm;
u32 version = sn_sal_rev();
extern void sn_cpu_init(void);
+ sn2_rtc_initial = rtc_time();
ia64_sn_plat_set_error_handling_features(); // obsolete
ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV);
ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES);
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
/*
- * If there was a primary vga adapter identified through the
- * EFI PCDP table, make it the preferred console. Otherwise
- * zero out conswitchp.
+ * Handle SN vga console.
+ *
+ * SN systems do not have enough ACPI table information
+ * being passed from prom to identify VGA adapters and the legacy
+ * addresses to access them. Until that is done, SN systems rely
+ * on the PCDP table to identify the primary VGA console if one
+ * exists.
+ *
+ * However, kernel PCDP support is optional, and even if it is built
+ * into the kernel, it will not be used if the boot cmdline contains
+ * console= directives.
+ *
+ * So, to work around this mess, we duplicate some of the PCDP code
+ * here so that the primary VGA console (as defined by PCDP) will
+ * work on SN systems even if a different console (e.g. serial) is
+ * selected on the boot line (or CONFIG_EFI_PCDP is off).
*/
+ if (! vga_console_membase)
+ sn_scan_pcdp();
+
if (vga_console_membase) {
/* usable vga ... make tty0 the preferred default console */
- add_preferred_console("tty", 0, NULL);
+ if (!strstr(*cmdline_p, "console="))
+ add_preferred_console("tty", 0, NULL);
} else {
printk(KERN_DEBUG "SGI: Disabling VGA console\n");
+ if (!strstr(*cmdline_p, "console="))
+ add_preferred_console("ttySG", 0, NULL);
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#else
MAX_DMA_ADDRESS = PAGE_OFFSET + MAX_PHYS_MEMORY;
- memset(physical_node_map, -1, sizeof(physical_node_map));
- for (pxm = 0; pxm < MAX_PXM_DOMAINS; pxm++)
- if (pxm_to_nid_map[pxm] != -1)
- physical_node_map[pxm_to_nasid(pxm)] =
- pxm_to_nid_map[pxm];
-
/*
- * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
- * support here so we don't have to listen to failed keyboard probe
- * messages.
+ * Build the tables for managing cnodes.
*/
- if (version <= 0x0209 && acpi_kbd_controller_present) {
- printk(KERN_INFO "Disabling legacy keyboard support as prom "
- "is too old and doesn't provide FADT\n");
- acpi_kbd_controller_present = 0;
- }
-
- printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
-
- master_nasid = boot_get_nasid();
+ build_cnode_tables();
status =
ia64_sal_freq_base(SAL_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec,
platform_intr_list[ACPI_INTERRUPT_CPEI] = IA64_CPE_VECTOR;
+ ia64_printk_clock = ia64_sn2_printk_clock;
+
+ /*
+ * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
+ * support here so we don't have to listen to failed keyboard probe
+ * messages.
+ */
+ if (version <= 0x0209 && acpi_kbd_controller_present) {
+ printk(KERN_INFO "Disabling legacy keyboard support as prom "
+ "is too old and doesn't provide FADT\n");
+ acpi_kbd_controller_present = 0;
+ }
+
+ printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
+
/*
* we set the default root device to /dev/hda
* to make simulation easy
{
cnodeid_t cnode;
- memset(sn_cnodeid_to_nasid, -1,
- sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
- for_each_online_node(cnode)
- sn_cnodeid_to_nasid[cnode] =
- pxm_to_nasid(nid_to_pxm_map[cnode]);
-
- numionodes = num_online_nodes();
- scan_for_ionodes();
-
/*
* Allocate & initalize the nodepda for each node.
*/
/*
* Allocate & initialize nodepda for TIOs. For now, put them on node 0.
*/
- for (cnode = num_online_nodes(); cnode < numionodes; cnode++) {
+ for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++) {
nodepdaindr[cnode] =
alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
/*
* Now copy the array of nodepda pointers to each nodepda.
*/
- for (cnode = 0; cnode < numionodes; cnode++)
+ for (cnode = 0; cnode < num_cnodes; cnode++)
memcpy(nodepdaindr[cnode]->pernode_pdaindr, nodepdaindr,
sizeof(nodepdaindr));
* Initialize the per node hubdev. This includes IO Nodes and
* headless/memless nodes.
*/
- for (cnode = 0; cnode < numionodes; cnode++) {
+ for (cnode = 0; cnode < num_cnodes; cnode++) {
hubdev_init_node(nodepdaindr[cnode], cnode);
}
}
sn_prom_type = 2;
else
sn_prom_type = 1;
- printk("Running on medusa with %s PROM\n", (sn_prom_type == 1) ? "real" : "fake");
+ printk(KERN_INFO "Running on medusa with %s PROM\n",
+ (sn_prom_type == 1) ? "real" : "fake");
}
memset(pda, 0, sizeof(pda));
- if (ia64_sn_get_sn_info(0, &sn_hub_info->shub2, &sn_hub_info->nasid_bitmask, &sn_hub_info->nasid_shift,
- &sn_system_size, &sn_sharing_domain_size, &sn_partition_id,
- &sn_coherency_id, &sn_region_size))
+ if (ia64_sn_get_sn_info(0, &sn_hub_info->shub2,
+ &sn_hub_info->nasid_bitmask,
+ &sn_hub_info->nasid_shift,
+ &sn_system_size, &sn_sharing_domain_size,
+ &sn_partition_id, &sn_coherency_id,
+ &sn_region_size))
BUG();
sn_hub_info->as_shift = sn_hub_info->nasid_shift - 2;
}
/*
- * Scan klconfig for ionodes. Add the nasids to the
- * physical_node_map and the pda and increment numionodes.
+ * Build tables for converting between NASIDs and cnodes.
*/
+static inline int __init board_needs_cnode(int type)
+{
+ return (type == KLTYPE_SNIA || type == KLTYPE_TIO);
+}
-static void __init scan_for_ionodes(void)
+void __init build_cnode_tables(void)
{
- int nasid = 0;
+ int nasid;
+ int node;
lboard_t *brd;
- /* fakeprom does not support klgraph */
- if (IS_RUNNING_ON_FAKE_PROM())
- return;
-
- /* Setup ionodes with memory */
- for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
- char *klgraph_header;
- cnodeid_t cnodeid;
-
- if (physical_node_map[nasid] == -1)
- continue;
+ memset(physical_node_map, -1, sizeof(physical_node_map));
+ memset(sn_cnodeid_to_nasid, -1,
+ sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
- cnodeid = -1;
- klgraph_header = __va(ia64_sn_get_klconfig_addr(nasid));
- if (!klgraph_header) {
- BUG(); /* All nodes must have klconfig tables! */
- }
- cnodeid = nasid_to_cnodeid(nasid);
- root_lboard[cnodeid] = (lboard_t *)
- NODE_OFFSET_TO_LBOARD((nasid),
- ((kl_config_hdr_t
- *) (klgraph_header))->
- ch_board_info);
+ /*
+ * First populate the tables with C/M bricks. This ensures that
+ * cnode == node for all C & M bricks.
+ */
+ for_each_online_node(node) {
+ nasid = pxm_to_nasid(nid_to_pxm_map[node]);
+ sn_cnodeid_to_nasid[node] = nasid;
+ physical_node_map[nasid] = node;
}
- /* Scan headless/memless IO Nodes. */
- for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
- /* if there's no nasid, don't try to read the klconfig on the node */
- if (physical_node_map[nasid] == -1)
- continue;
- brd = find_lboard_any((lboard_t *)
- root_lboard[nasid_to_cnodeid(nasid)],
- KLTYPE_SNIA);
- if (brd) {
- brd = KLCF_NEXT_ANY(brd); /* Skip this node's lboard */
- if (!brd)
- continue;
- }
-
- brd = find_lboard_any(brd, KLTYPE_SNIA);
+ /*
+ * num_cnodes is total number of C/M/TIO bricks. Because of the 256 node
+ * limit on the number of nodes, we can't use the generic node numbers
+ * for this. Note that num_cnodes is incremented below as TIOs or
+ * headless/memoryless nodes are discovered.
+ */
+ num_cnodes = num_online_nodes();
- while (brd) {
- sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
- physical_node_map[brd->brd_nasid] = numionodes;
- root_lboard[numionodes] = brd;
- numionodes++;
- brd = KLCF_NEXT_ANY(brd);
- if (!brd)
- break;
-
- brd = find_lboard_any(brd, KLTYPE_SNIA);
- }
- }
+ /* fakeprom does not support klgraph */
+ if (IS_RUNNING_ON_FAKE_PROM())
+ return;
- /* Scan for TIO nodes. */
- for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
- /* if there's no nasid, don't try to read the klconfig on the node */
- if (physical_node_map[nasid] == -1)
- continue;
- brd = find_lboard_any((lboard_t *)
- root_lboard[nasid_to_cnodeid(nasid)],
- KLTYPE_TIO);
+ /* Find TIOs & headless/memoryless nodes and add them to the tables */
+ for_each_online_node(node) {
+ kl_config_hdr_t *klgraph_header;
+ nasid = cnodeid_to_nasid(node);
+ klgraph_header = ia64_sn_get_klconfig_addr(nasid);
+ if (klgraph_header == NULL)
+ BUG();
+ brd = NODE_OFFSET_TO_LBOARD(nasid, klgraph_header->ch_board_info);
while (brd) {
- sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
- physical_node_map[brd->brd_nasid] = numionodes;
- root_lboard[numionodes] = brd;
- numionodes++;
- brd = KLCF_NEXT_ANY(brd);
- if (!brd)
- break;
-
- brd = find_lboard_any(brd, KLTYPE_TIO);
+ if (board_needs_cnode(brd->brd_type) && physical_node_map[brd->brd_nasid] < 0) {
+ sn_cnodeid_to_nasid[num_cnodes] = brd->brd_nasid;
+ physical_node_map[brd->brd_nasid] = num_cnodes++;
+ }
+ brd = find_lboard_next(brd);
}
}
}
{
long cpu;
- for (cpu=0; cpu < NR_CPUS; cpu++)
+ for (cpu = 0; cpu < NR_CPUS; cpu++)
if (cpuid_to_nasid(cpu) == nasid &&
cpuid_to_slice(cpu) == slice)
return cpu;
git.openpandora.org / pandora-kernel.git / blobdiff