This is a note to let you know that I've just added the patch titled
arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit
to the 3.11-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:
arm64-perf-fix-armv8-evtype_mask-to-include-nsh-bit.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 178cd9ce377232518ec17ff2ecab2e80fa60784c Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@xxxxxxx>
Date: Tue, 20 Aug 2013 11:47:42 +0100
Subject: arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit
From: Will Deacon <will.deacon@xxxxxxx>
commit 178cd9ce377232518ec17ff2ecab2e80fa60784c upstream.
This is a port of f2fe09b055e2 ("ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK
to include NSH bit") to arm64, which fixes the broken evtype mask to
include the NSH bit, allowing profiling at EL2.
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/kernel/perf_event.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -784,7 +784,7 @@ static const unsigned armv8_pmuv3_perf_c
/*
* PMXEVTYPER: Event selection reg
*/
-#define ARMV8_EVTYPE_MASK 0xc00000ff /* Mask for writable bits */
+#define ARMV8_EVTYPE_MASK 0xc80000ff /* Mask for writable bits */
#define ARMV8_EVTYPE_EVENT 0xff /* Mask for EVENT bits */
/*
Patches currently in stable-queue which might be from will.deacon@xxxxxxx are
queue-3.11/arm64-perf-fix-group-validation-when-using-enable_on_exec.patch
queue-3.11/arm64-perf-fix-armv8-evtype_mask-to-include-nsh-bit.patch
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