diff options
Diffstat (limited to 'arch/powerpc/kernel/swsusp.c')
| -rw-r--r-- | arch/powerpc/kernel/swsusp.c | 43 |
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 00000000000..064a7ba4f02 --- /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 +} |