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powerpc: Add AT_HWCAP2 to indicate V.CRYPTO category support
The Vector Crypto category instructions are supported by current POWER8 chips, advertise them to userspace using a specific bit to properly differentiate with chips of the same architecture level that might not have them. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org> [v3.10+]
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@ -41,5 +41,6 @@
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#define PPC_FEATURE2_EBB 0x10000000
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#define PPC_FEATURE2_ISEL 0x08000000
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#define PPC_FEATURE2_TAR 0x04000000
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#define PPC_FEATURE2_VEC_CRYPTO 0x02000000
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#endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */
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@ -109,7 +109,8 @@ extern void __restore_cpu_e6500(void);
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PPC_FEATURE_PSERIES_PERFMON_COMPAT)
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#define COMMON_USER2_POWER8 (PPC_FEATURE2_ARCH_2_07 | \
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PPC_FEATURE2_HTM_COMP | PPC_FEATURE2_DSCR | \
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PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR)
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PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR | \
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PPC_FEATURE2_VEC_CRYPTO)
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#define COMMON_USER_PA6T (COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
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PPC_FEATURE_TRUE_LE | \
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PPC_FEATURE_HAS_ALTIVEC_COMP)
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