diff options
Diffstat (limited to 'arch/powerpc/kernel/swsusp.c')
-rw-r--r-- | arch/powerpc/kernel/swsusp.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c new file mode 100644 index 0000000000..41dcb21752 --- /dev/null +++ b/arch/powerpc/kernel/swsusp.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Common powerpc suspend code for 32 and 64 bits + * + * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> + */ + +#include <linux/sched.h> +#include <linux/suspend.h> +#include <asm/current.h> +#include <asm/mmu_context.h> +#include <asm/switch_to.h> + +void save_processor_state(void) +{ + /* + * flush out all the special registers so we don't need + * to save them in the snapshot + */ + flush_all_to_thread(current); + +#ifdef CONFIG_PPC64 + hard_irq_disable(); +#endif + +} + +void restore_processor_state(void) +{ +#ifdef CONFIG_PPC32 + switch_mmu_context(current->active_mm, current->active_mm, NULL); +#endif +} |