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| author | Huacai Chen <chenhuacai@loongson.cn> | 2022-12-10 17:40:15 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-12-14 03:41:53 +0300 |
| commit | 7db54bfe44a662c8f2c10277bccfa02c2f4c719c (patch) | |
| tree | 0718e06127149f29a103fee7fcccf6a458067f61 /arch/loongarch/kernel/setup.c | |
| parent | 366bb35a8e48198cefcd3484ac6b2374d1347873 (diff) | |
| download | linux-7db54bfe44a662c8f2c10277bccfa02c2f4c719c.tar.xz | |
LoongArch: Add hibernation (ACPI S4) support
Add hibernation (Suspend to Disk, aka ACPI S4) support for LoongArch.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/setup.c')
| -rw-r--r-- | arch/loongarch/kernel/setup.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index fdabf2ac1927..4344502c0b31 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -31,6 +31,7 @@ #include <linux/libfdt.h> #include <linux/of_fdt.h> #include <linux/of_address.h> +#include <linux/suspend.h> #include <linux/swiotlb.h> #include <asm/addrspace.h> @@ -370,6 +371,10 @@ static void __init arch_mem_init(char **cmdline_p) dma_contiguous_reserve(PFN_PHYS(max_low_pfn)); + /* Reserve for hibernation. */ + register_nosave_region(PFN_DOWN(__pa_symbol(&__nosave_begin)), + PFN_UP(__pa_symbol(&__nosave_end))); + memblock_dump_all(); early_memtest(PFN_PHYS(ARCH_PFN_OFFSET), PFN_PHYS(max_low_pfn)); |