diff options
| author | Will Deacon <will.deacon@arm.com> | 2015-02-04 12:17:55 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-27 14:34:39 +0100 |
| commit | d964b7229e7f94428a1e8d26999adffbe8a69db2 (patch) | |
| tree | aa0b764dee60f631d5a61b941f4fd40a6513724f /arch/arm64/include | |
| parent | 40a1db2434a1b62332b1af25cfa14d7b8c0301fe (diff) | |
| download | linux-d964b7229e7f94428a1e8d26999adffbe8a69db2.tar.bz2 | |
arm64: alternatives: add cpu feature for lse atomics
Add a CPU feature for the LSE atomic instructions, so that they can be
patched in at runtime when we detect that they are supported.
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 40e106f81f27..d9262d4b4dcd 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -26,8 +26,9 @@ #define ARM64_WORKAROUND_845719 2 #define ARM64_HAS_SYSREG_GIC_CPUIF 3 #define ARM64_HAS_PAN 4 +#define ARM64_CPU_FEAT_LSE_ATOMICS 5 -#define ARM64_NCAPS 5 +#define ARM64_NCAPS 6 #ifndef __ASSEMBLY__ |