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.wang2...@gmail.com>
---
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 d374191..ef1ed5c 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -660,6 +660,8 @@ 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) & ((1UL << VA_BITS) - 1))
+#define kc_offset_to_vaddr(o) ((o) | ~((1UL << VA_BITS) - 1))
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_PGTABLE_H */
--
1.9.1
--
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