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arm64: perf: Extend event config for ARMv8.1

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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>
This commit is contained in:
Shaokun Zhang 2017-05-24 15:43:18 +08:00 committed by Will Deacon
parent 5ed02dbb49
commit fe7296e192
1 changed files with 1 additions and 1 deletions
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arch/arm64/kernel/perf_event.c
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@ -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,