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| author | yalin wang <yalin.wang2010@gmail.com> | 2015-10-12 09:52:59 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-10-13 17:15:24 +0300 |
| commit | 03875ad52fdde1f110f663470a45d3dcc34b8fef (patch) | |
| tree | ae3441386bd181149356f521614fe6e1d98e02a7 /arch/arm64 | |
| parent | 1b6d7f8742d5d46c478f10c9e57da18d049b116d (diff) | |
| download | linux-03875ad52fdde1f110f663470a45d3dcc34b8fef.tar.xz | |
arm64: add kc_offset_to_vaddr and kc_vaddr_to_offset macro
This patch add kc_offset_to_vaddr() and kc_vaddr_to_offset(),
the default version doesn't work on arm64, because arm64 kernel address
is below the PAGE_OFFSET, like module address and vmemmap address are
all below PAGE_OFFSET address.
Signed-off-by: yalin wang <yalin.wang2010@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index e3b515fbf0c2..83965dd63d2f 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -673,6 +673,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #define update_mmu_cache_pmd(vma, address, pmd) do { } while (0) +#define kc_vaddr_to_offset(v) ((v) & ~VA_START) +#define kc_offset_to_vaddr(o) ((o) | VA_START) #endif /* !__ASSEMBLY__ */ #endif /* __ASM_PGTABLE_H */ |