1 files changed, 43 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c
new file mode 100644
index 000000000000..064a7ba4f02c
--- /dev/null
+++ b/arch/powerpc/kernel/swsusp.c
@@ -0,0 +1,43 @@
+/*
+ * 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);
+
+#ifdef CONFIG_PPC64
+        hard_irq_disable();
+#endif
+
+}
+
+void restore_processor_state(void)
+{
+#ifdef CONFIG_PPC32
+        set_context(current->active_mm->context.id, current->active_mm->pgd);
+#endif
+
+#ifdef CONFIG_PPC64
+        hard_irq_enable();
+#endif
+}