This is a note to let you know that I've just added the patch titled
powerpc: Add AT_HWCAP2 to indicate V.CRYPTO category support
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-add-at_hwcap2-to-indicate-v.crypto-category-support.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dd58a092c4202f2bd490adab7285b3ff77f8e467 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 10 Jun 2014 15:04:40 +1000
Subject: powerpc: Add AT_HWCAP2 to indicate V.CRYPTO category support
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
commit dd58a092c4202f2bd490adab7285b3ff77f8e467 upstream.
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@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/include/uapi/asm/cputable.h | 1 +
arch/powerpc/kernel/cputable.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -41,5 +41,6 @@
#define PPC_FEATURE2_EBB 0x10000000
#define PPC_FEATURE2_ISEL 0x08000000
#define PPC_FEATURE2_TAR 0x04000000
+#define PPC_FEATURE2_VEC_CRYPTO 0x02000000
#endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -109,7 +109,8 @@ extern void __restore_cpu_e6500(void);
PPC_FEATURE_PSERIES_PERFMON_COMPAT)
#define COMMON_USER2_POWER8 (PPC_FEATURE2_ARCH_2_07 | \
PPC_FEATURE2_HTM_COMP | PPC_FEATURE2_DSCR | \
- PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR)
+ PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR | \
+ PPC_FEATURE2_VEC_CRYPTO)
#define COMMON_USER_PA6T (COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
PPC_FEATURE_TRUE_LE | \
PPC_FEATURE_HAS_ALTIVEC_COMP)
Patches currently in stable-queue which might be from benh@xxxxxxxxxxxxxxxxxxx are
queue-3.15/powerpc-fix-typo-config_ppc_cpu.patch
queue-3.15/powerpc-perf-ensure-all-ebb-register-state-is-cleared-on-fork.patch
queue-3.15/powernv-fix-permissions-on-sysparam-sysfs-entries.patch
queue-3.15/powerpc-don-t-skip-epapr-spin-table-cpus.patch
queue-3.15/powerpc-add-at_hwcap2-to-indicate-v.crypto-category-support.patch
queue-3.15/powerpc-mm-check-paca-psize-is-up-to-date-for-huge-mappings.patch
queue-3.15/powerpc-pseries-fix-overwritten-pe-state.patch
queue-3.15/powerpc-don-t-setup-cpus-with-bad-status.patch
queue-3.15/powerpc-64bit-sendfile-is-capped-at-2gb.patch
queue-3.15/powerpc-serial-use-saner-flags-when-creating-legacy-ports.patch
queue-3.15/powerpc-fix-typo-config_pmac.patch
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