Commit 03875ad5 authored Oct 12, 2015 by yalin wang Committed by Catalin Marinas Oct 13, 2015

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>

parent 1b6d7f87

arch/arm64/include/asm/pgtable.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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 */