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authorShaokun Zhang <zhangshaokun@hisilicon.com>2017-05-24 15:43:18 +0800
committerWill Deacon <will.deacon@arm.com>2017-05-30 12:15:14 +0100
commitfe7296e19221c6dc125a06b52e28ccbdb76d9b58 (patch)
tree19eac9bcefe8cfc0f7bbcfc77473c4befa398215 /arch
parent5ed02dbb497422bf225783f46e6eadd237d23d6b (diff)
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arm64: perf: Extend event config for ARMv8.1
Perf has supported ARMv8.1 feature with 16-bit evtCount filed [see c210ae8 arm64: perf: Extend event mask for ARMv8.1], event config should be extended to 16-bit too, otherwise, if use -e event_name whose event_code is more than 0x3ff, pmu_config_term will return -EINVAL because function pmu_format_max_value depends on event config. This patch extends event config to 16-bit. Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/kernel/perf_event.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 83a1b1ad189f..b5798ba21189 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -529,7 +529,7 @@ static struct attribute_group armv8_pmuv3_events_attr_group = {
.is_visible = armv8pmu_event_attr_is_visible,
};
-PMU_FORMAT_ATTR(event, "config:0-9");
+PMU_FORMAT_ATTR(event, "config:0-15");
static struct attribute *armv8_pmuv3_format_attrs[] = {
&format_attr_event.attr,