From 03875ad52fdde1f110f663470a45d3dcc34b8fef Mon Sep 17 00:00:00 2001 From: yalin wang Date: Mon, 12 Oct 2015 14:52:59 +0800 Subject: [PATCH] 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 Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) 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 */