3 files changed, 35 insertions, 65 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index e0fa80eca366..949f36a62aae 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_GENERIC_TBSYNC)	+= smp-tbsync.o
 obj-$(CONFIG_CRASH_DUMP)        += crash_dump.o
 obj-$(CONFIG_6xx)               += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
 obj-$(CONFIG_TAU)               += tau_6xx.o
+obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o
 obj32-$(CONFIG_SOFTWARE_SUSPEND) += swsusp_32.o
 obj32-$(CONFIG_MODULES)         += module_32.o
 
diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c
new file mode 100644
index 000000000000..b89e4f5a0b08
--- /dev/null
+++ b/arch/powerpc/kernel/swsusp.c
@@ -0,0 +1,34 @@
+/*
+ * Common powerpc suspend code for 32 and 64 bits
+ *
+ * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
+ *
+ * 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 version.
+ */
+
+#include <linux/sched.h>
+#include <asm/suspend.h>
+#include <asm/system.h>
+#include <asm/current.h>
+#include <asm/mmu_context.h>
+
+void save_processor_state(void)
+{
+        /*
+         * flush out all the special registers so we don't need
+         * to save them in the snapshot
+         */
+        flush_fp_to_thread(current);
+        flush_altivec_to_thread(current);
+        flush_spe_to_thread(current);
+}
+
+void restore_processor_state(void)
+{
+#ifdef CONFIG_PPC32
+        set_context(current->active_mm->context.id, current->active_mm->pgd);
+#endif
+}
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index b820cabac697..5ae57e17d2ba 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -439,76 +439,11 @@ static void __init find_boot_device(void)
 #endif
 }
 
-/* TODO: Merge the suspend-to-ram with the common code !!!
- * currently, this is a stub implementation for suspend-to-disk
- * only
- */
-
-#ifdef CONFIG_SOFTWARE_SUSPEND
-
-static int pmac_pm_prepare(suspend_state_t state)
-{
-        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
-
-        return 0;
-}
-
-static int pmac_pm_enter(suspend_state_t state)
-{
-        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
-
-        /* Giveup the lazy FPU & vec so we don't have to back them
-         * up from the low level code
-         */
-        enable_kernel_fp();
-
-#ifdef CONFIG_ALTIVEC
-        if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
-                enable_kernel_altivec();
-#endif /* CONFIG_ALTIVEC */
-
-        return 0;
-}
-
-static int pmac_pm_finish(suspend_state_t state)
-{
-        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
-
-        /* Restore userland MMU context */
-        set_context(current->active_mm->context.id, current->active_mm->pgd);
-
-        return 0;
-}
-
-static int pmac_pm_valid(suspend_state_t state)
-{
-        switch (state) {
-        case PM_SUSPEND_DISK:
-                return 1;
-        /* can't do any other states via generic mechanism yet */
-        default:
-                return 0;
-        }
-}
-
-static struct pm_ops pmac_pm_ops = {
-        .pm_disk_mode   = PM_DISK_SHUTDOWN,
-        .prepare        = pmac_pm_prepare,
-        .enter          = pmac_pm_enter,
-        .finish         = pmac_pm_finish,
-        .valid          = pmac_pm_valid,
-};
-
-#endif /* CONFIG_SOFTWARE_SUSPEND */
-
 static int initializing = 1;
 
 static int pmac_late_init(void)
 {
         initializing = 0;
-#ifdef CONFIG_SOFTWARE_SUSPEND
-        pm_set_ops(&pmac_pm_ops);
-#endif /* CONFIG_SOFTWARE_SUSPEND */
         return 0;
 }