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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2014-03-03 11:34:46 +0400
committerCatalin Marinas <catalin.marinas@arm.com>2014-03-04 12:06:32 +0400
commit4cf761cdccc3b050f768f25dc36342cdfec4efdd (patch)
treedd57fc3def90b6203be901773bc148850df13c3f /arch/arm64/include/asm/hwcap.h
parent28964d32d495a0753986d464c48c8e1ae73699be (diff)
downloadlinux-4cf761cdccc3b050f768f25dc36342cdfec4efdd.tar.xz
arm64: advertise ARMv8 extensions to 32-bit compat ELF binaries
This adds support for advertising the presence of ARMv8 Crypto Extensions in the Aarch32 execution state to 32-bit ELF binaries running in 32-bit compat mode under the arm64 kernel. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/hwcap.h')
-rw-r--r--arch/arm64/include/asm/hwcap.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 9a4cbd60c88e..024c46183c3c 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -32,6 +32,12 @@
#define COMPAT_HWCAP_IDIV (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
#define COMPAT_HWCAP_EVTSTRM (1 << 21)
+#define COMPAT_HWCAP2_AES (1 << 0)
+#define COMPAT_HWCAP2_PMULL (1 << 1)
+#define COMPAT_HWCAP2_SHA1 (1 << 2)
+#define COMPAT_HWCAP2_SHA2 (1 << 3)
+#define COMPAT_HWCAP2_CRC32 (1 << 4)
+
#ifndef __ASSEMBLY__
/*
* This yields a mask that user programs can use to figure out what