This is a note to let you know that I've just added the patch titled
ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit
to the 3.8-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:
arm-7663-1-perf-fix-armv7-evtype_mask-to-include-nsh-bit.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f2fe09b055e2549de41fb107b34c60bac4a1b0cf Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@xxxxxxx>
Date: Thu, 28 Feb 2013 17:49:11 +0100
Subject: ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit
From: Will Deacon <will.deacon@xxxxxxx>
commit f2fe09b055e2549de41fb107b34c60bac4a1b0cf upstream.
Masked out PMXEVTYPER.NSH means that we can't enable profiling at PL2,
regardless of the settings in the HDCR.
This patch fixes the broken mask.
Reported-by: Christoffer Dall <cdall@xxxxxxxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/kernel/perf_event_v7.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -774,7 +774,7 @@ static const unsigned armv7_a7_perf_cach
/*
* PMXEVTYPER: Event selection reg
*/
-#define ARMV7_EVTYPE_MASK 0xc00000ff /* Mask for writable bits */
+#define ARMV7_EVTYPE_MASK 0xc80000ff /* Mask for writable bits */
#define ARMV7_EVTYPE_EVENT 0xff /* Mask for EVENT bits */
/*
Patches currently in stable-queue which might be from will.deacon@xxxxxxx are
queue-3.8/arm-7659-1-mm-make-mm-context.id-an-atomic64_t-variable.patch
queue-3.8/arm-7663-1-perf-fix-armv7-evtype_mask-to-include-nsh-bit.patch
queue-3.8/arm-7658-1-mm-fix-race-updating-mm-context.id-on-asid-rollover.patch
queue-3.8/arm-7654-1-preserve-l_pte_valid-in-pte_modify.patch
queue-3.8/arm-7657-1-head-fix-swapper-and-idmap-population-with-lpae-and-big-endian.patch
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