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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/powerpc/kernel/swsusp.c | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | arch/powerpc/kernel/swsusp.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c new file mode 100644 index 000000000..0050b2d2f --- /dev/null +++ b/arch/powerpc/kernel/swsusp.c @@ -0,0 +1,37 @@ +/* + * 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 <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 +} |