diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2017-07-25 11:55:40 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-09 11:00:35 +0100 |
| commit | 7aac405ebb3224037efd56b73d82d181111cdac3 (patch) | |
| tree | 04820d65325b5e9cfce27e0df511edd8c71a499c /arch/arm64/include/uapi | |
| parent | d46befef4c03fb61a62b3319ff5265aaac7bc465 (diff) | |
| download | linux-7aac405ebb3224037efd56b73d82d181111cdac3.tar.gz linux-7aac405ebb3224037efd56b73d82d181111cdac3.tar.bz2 linux-7aac405ebb3224037efd56b73d82d181111cdac3.zip | |
arm64: Expose DC CVAP to userspace
The ARMv8.2-DCPoP feature introduces persistent memory support to the
architecture, by defining a point of persistence in the memory
hierarchy, and a corresponding cache maintenance operation, DC CVAP.
Expose the support via HWCAP and MRS emulation.
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/uapi')
| -rw-r--r-- | arch/arm64/include/uapi/asm/hwcap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h index 4e187ce2a811..4b9344cba83a 100644 --- a/arch/arm64/include/uapi/asm/hwcap.h +++ b/arch/arm64/include/uapi/asm/hwcap.h @@ -35,5 +35,6 @@ #define HWCAP_JSCVT (1 << 13) #define HWCAP_FCMA (1 << 14) #define HWCAP_LRCPC (1 << 15) +#define HWCAP_DCPOP (1 << 16) #endif /* _UAPI__ASM_HWCAP_H */ |