[PATCH v4 5/5] arm64/perf: Extend event mask for ARMv8.1
Jan Glauber
jglauber at cavium.com
Thu Feb 18 08:50:14 PST 2016
ARMv8.1 increases the PMU event number space to 16 bit so increase
the EVTYPE mask.
Signed-off-by: Jan Glauber <jglauber at cavium.com>
---
arch/arm64/kernel/perf_event.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index c68fa98..8746781 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -419,8 +419,8 @@ static const struct attribute_group *armv8_pmuv3_attr_groups[] = {
/*
* PMXEVTYPER: Event selection reg
*/
-#define ARMV8_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */
-#define ARMV8_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */
+#define ARMV8_EVTYPE_MASK 0xc800ffff /* Mask for writable bits */
+#define ARMV8_EVTYPE_EVENT 0xffff /* Mask for EVENT bits */
/*
* Event filters for PMUv3
--
1.9.1
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