Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...

[pandora-kernel.git] / arch / powerpc / platforms / pseries / setup.c

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 042ecae..34aff47 100644 (file)
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -55,7 +55,6 @@
 #include <asm/dma.h>
 #include <asm/machdep.h>
 #include <asm/irq.h>
-#include <asm/kexec.h>
 #include <asm/time.h>
 #include <asm/nvram.h>
 #include "xics.h"
@@ -65,10 +64,10 @@
 #include <asm/i8259.h>
 #include <asm/udbg.h>
 #include <asm/smp.h>
+#include <asm/firmware.h>
 
 #include "plpar_wrappers.h"
-#include "ras.h"
-#include "firmware.h"
+#include "pseries.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -77,8 +76,6 @@
 #endif
 
 /* move those away to a .h */
-extern void smp_init_pseries_mpic(void);
-extern void smp_init_pseries_xics(void);
 extern void find_udbg_vterm(void);
 
 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
@@ -221,42 +218,6 @@ static void pseries_lpar_enable_pmcs(void)
                get_lppaca()->pmcregs_in_use = 1;
 }
 
-#ifdef CONFIG_KEXEC
-static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
-{
-       /* Don't risk a hypervisor call if we're crashing */
-       if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
-               unsigned long addr;
-
-               addr = __pa(get_slb_shadow());
-               if (unregister_slb_shadow(hard_smp_processor_id(), addr))
-                       printk("SLB shadow buffer deregistration of "
-                              "cpu %u (hw_cpu_id %d) failed\n",
-                              smp_processor_id(),
-                              hard_smp_processor_id());
-
-               addr = __pa(get_lppaca());
-               if (unregister_vpa(hard_smp_processor_id(), addr)) {
-                       printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
-                                       "failed\n", smp_processor_id(),
-                                       hard_smp_processor_id());
-               }
-       }
-}
-
-static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
-{
-       pseries_kexec_cpu_down(crash_shutdown, secondary);
-       mpic_teardown_this_cpu(secondary);
-}
-
-static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
-{
-       pseries_kexec_cpu_down(crash_shutdown, secondary);
-       xics_teardown_cpu(secondary);
-}
-#endif /* CONFIG_KEXEC */
-
 static void __init pseries_discover_pic(void)
 {
        struct device_node *np;
@@ -269,21 +230,13 @@ static void __init pseries_discover_pic(void)
                        pSeries_mpic_node = of_node_get(np);
                        ppc_md.init_IRQ       = pseries_mpic_init_IRQ;
                        ppc_md.get_irq        = mpic_get_irq;
-#ifdef CONFIG_KEXEC
-                       ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic;
-#endif
-#ifdef CONFIG_SMP
+                       setup_kexec_cpu_down_mpic();
                        smp_init_pseries_mpic();
-#endif
                        return;
                } else if (strstr(typep, "ppc-xicp")) {
                        ppc_md.init_IRQ       = xics_init_IRQ;
-#ifdef CONFIG_KEXEC
-                       ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics;
-#endif
-#ifdef CONFIG_SMP
+                       setup_kexec_cpu_down_xics();
                        smp_init_pseries_xics();
-#endif
                        return;
                }
        }
@@ -533,6 +486,34 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus)
        return PCI_PROBE_NORMAL;
 }
 
+/**
+ * pSeries_power_off - tell firmware about how to power off the system.
+ *
+ * This function calls either the power-off rtas token in normal cases
+ * or the ibm,power-off-ups token (if present & requested) in case of
+ * a power failure. If power-off token is used, power on will only be
+ * possible with power button press. If ibm,power-off-ups token is used
+ * it will allow auto poweron after power is restored.
+ */
+void pSeries_power_off(void)
+{
+       int rc;
+       int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups");
+
+       if (rtas_flash_term_hook)
+               rtas_flash_term_hook(SYS_POWER_OFF);
+
+       if (rtas_poweron_auto == 0 ||
+               rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) {
+               rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1);
+               printk(KERN_INFO "RTAS power-off returned %d\n", rc);
+       } else {
+               rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL);
+               printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc);
+       }
+       for (;;);
+}
+
 define_machine(pseries) {
        .name                   = "pSeries",
        .probe                  = pSeries_probe,
@@ -543,7 +524,7 @@ define_machine(pseries) {
        .pcibios_fixup          = pSeries_final_fixup,
        .pci_probe_mode         = pSeries_pci_probe_mode,
        .restart                = rtas_restart,
-       .power_off              = rtas_power_off,
+       .power_off              = pSeries_power_off,
        .halt                   = rtas_halt,
        .panic                  = rtas_os_term,
        .get_boot_time          = rtas_get_boot_time,
@@ -554,9 +535,4 @@ define_machine(pseries) {
        .check_legacy_ioport    = pSeries_check_legacy_ioport,
        .system_reset_exception = pSeries_system_reset_exception,
        .machine_check_exception = pSeries_machine_check_exception,
-#ifdef CONFIG_KEXEC
-       .machine_kexec          = default_machine_kexec,
-       .machine_kexec_prepare  = default_machine_kexec_prepare,
-       .machine_crash_shutdown = default_machine_crash_shutdown,
-#endif
 };