Commit 8258a989 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Russell King
Browse files

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: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent b342ea4e

arch/arm/include/uapi/asm/hwcap.h

+5 −0
Original line number Diff line number Diff line
@@ -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 */

arch/arm/kernel/setup.c

+5 −0
Original line number Diff line number Diff line
@@ -1009,6 +1009,11 @@ static const char *hwcap_str[] = { 
};



static const char *hwcap2_str[] = {

	"aes",

	"pmull",

	"sha1",

	"sha2",

	"crc32",

	NULL

};

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