| Message ID | 20190612172658.28522-10-steve.capper@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | 52-bit kernel + user VAs | expand |
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index d0fe2fa9169d..d3932463822c 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -55,8 +55,9 @@ * VA_START - the first kernel virtual address. */ #define VA_BITS (CONFIG_ARM64_VA_BITS) -#define PAGE_OFFSET (UL(0xffffffffffffffff) - \ - (UL(1) << VA_BITS) + 1) +#define _PAGE_OFFSET(va) (UL(0xffffffffffffffff) - \ + (UL(1) << (va)) + 1) +#define PAGE_OFFSET (_PAGE_OFFSET(VA_BITS)) #define KIMAGE_VADDR (MODULES_END) #define BPF_JIT_REGION_START (KASAN_SHADOW_END) #define BPF_JIT_REGION_SIZE (SZ_128M)
This patch introduces _PAGE_OFFSET(va) to allow for computing the largest possible direct linear map for use with 48/52-bit selectable kernel VAs. Signed-off-by: Steve Capper <steve.capper@arm.com> --- arch/arm64/include/asm/memory.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)