From mboxrd@z Thu Jan 1 00:00:00 1970 From: ard.biesheuvel@linaro.org (Ard Biesheuvel) Date: Mon, 23 Dec 2013 15:06:31 +0100 Subject: [PATCH v2 4/5] ARM: introduce HWCAP2 feature bits for ARMv8 Crypto Extensions In-Reply-To: <1387807592-26375-1-git-send-email-ard.biesheuvel@linaro.org> References: <1387807592-26375-1-git-send-email-ard.biesheuvel@linaro.org> Message-ID: <1387807592-26375-5-git-send-email-ard.biesheuvel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This allocates feature bits 0-4 in HWCAP2 for the crypto and CRC extensions introduced in ARMv8. Signed-off-by: Ard Biesheuvel --- arch/arm/include/uapi/asm/hwcap.h | 5 +++++ arch/arm/kernel/setup.c | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index 87768b5..20d12f2 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 ce3049c..ac3a7f2 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -996,6 +996,11 @@ static const char *hwcap_str[] = { }; static const char *hwcap2_str[] = { + "aes", + "pmull", + "sha1", + "sha2", + "crc32", NULL }; -- 1.8.3.2