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| author | Jinyang He <hejinyang@loongson.cn> | 2020-11-25 11:11:02 +0100 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-11-27 10:56:26 +0100 |
| commit | 1dac4585f585d3aa1a5af4821128ea2642700e48 (patch) | |
| tree | c4a71852780705c759ac849cd95940e469ee2063 /arch/mips | |
| parent | MIPS: mm: Remove unused is_aligned_hugepage_range (diff) | |
| download | linux-1dac4585f585d3aa1a5af4821128ea2642700e48.tar.xz linux-1dac4585f585d3aa1a5af4821128ea2642700e48.zip | |
MIPS: Loongson64: Fix up reserving kernel memory range
Reserve memory from &_text to &_end. Otherwise if kernel address
was modified, the memory range of start_pfn to kernel_start_pfn
would be reserved. Then we could not use this range.
Signed-off-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/loongson64/numa.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c index 509b360e4d28..c6f0c48384f8 100644 --- a/arch/mips/loongson64/numa.c +++ b/arch/mips/loongson64/numa.c @@ -151,6 +151,9 @@ static void __init node_mem_init(unsigned int node) NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn; if (node == 0) { + /* kernel start address */ + unsigned long kernel_start_pfn = PFN_DOWN(__pa_symbol(&_text)); + /* kernel end address */ unsigned long kernel_end_pfn = PFN_UP(__pa_symbol(&_end)); @@ -158,8 +161,8 @@ static void __init node_mem_init(unsigned int node) max_low_pfn = end_pfn; /* Reserve the kernel text/data/bss */ - memblock_reserve(start_pfn << PAGE_SHIFT, - ((kernel_end_pfn - start_pfn) << PAGE_SHIFT)); + memblock_reserve(kernel_start_pfn << PAGE_SHIFT, + ((kernel_end_pfn - kernel_start_pfn) << PAGE_SHIFT)); /* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */ if (node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT)) |