diff options
| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2014-02-19 22:29:40 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-02-25 11:40:50 +0000 |
| commit | 8258a9895c99cdaacad8edc4748c0a624c710961 (patch) | |
| tree | da09fd689000370d04cd450867dab909fa08769a /arch | |
| parent | ARM: 7981/1: add support for AT_HWCAP2 ELF auxv entry (diff) | |
| download | linux-dev-8258a9895c99cdaacad8edc4748c0a624c710961.tar.xz linux-dev-8258a9895c99cdaacad8edc4748c0a624c710961.zip | |
ARM: 7982/1: introduce HWCAP2 feature bits for ARMv8 Crypto Extensions
This allocates feature bits 0-4 in HWCAP2 for the crypto and CRC
extensions introduced in ARMv8.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/uapi/asm/hwcap.h | 5 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index 87768b5cffd1..20d12f230a2f 100644 --- a/arch/arm/include/uapi/asm/hwcap.h +++ b/arch/arm/include/uapi/asm/hwcap.h @@ -31,5 +31,10 @@ /* * HWCAP2 flags - for elf_hwcap2 (in kernel) and AT_HWCAP2 */ +#define HWCAP2_AES (1 << 0) +#define HWCAP2_PMULL (1 << 1) +#define HWCAP2_SHA1 (1 << 2) +#define HWCAP2_SHA2 (1 << 3) +#define HWCAP2_CRC32 (1 << 4) #endif /* _UAPI__ASMARM_HWCAP_H */ diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index dbb5449d6b79..0a6c70b0b0f9 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1009,6 +1009,11 @@ static const char *hwcap_str[] = { }; static const char *hwcap2_str[] = { + "aes", + "pmull", + "sha1", + "sha2", + "crc32", NULL }; |