[PATCH v2 resend 4/5] ARM: introduce HWCAP2 feature bits for ARMv8 Crypto Extensions
From: Ard Biesheuvel <hidden>
Date: 2014-01-17 09:25:45
Also in:
lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
This allocates feature bits 0-4 in HWCAP2 for the crypto and CRC extensions introduced in ARMv8. Signed-off-by: Ard Biesheuvel <redacted> --- 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 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 ce3049c89c18..ac3a7f218b7f 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