| Message ID | 1444632779-23369-1-git-send-email-yalin.wang2010@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Oct 12, 2015 at 02:52:59PM +0800, yalin wang wrote: > 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> Applied. Thanks.
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 4331d84..23070a8 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -658,6 +658,8 @@ 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 */
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> --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+)