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| author | Shaokun Zhang <zhangshaokun@hisilicon.com> | 2017-05-24 09:43:18 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-05-30 13:15:14 +0200 |
| commit | fe7296e19221c6dc125a06b52e28ccbdb76d9b58 (patch) | |
| tree | 19eac9bcefe8cfc0f7bbcfc77473c4befa398215 /arch/arm64/kernel | |
| parent | Linux 4.12-rc3 (diff) | |
| download | linux-fe7296e19221c6dc125a06b52e28ccbdb76d9b58.tar.xz linux-fe7296e19221c6dc125a06b52e28ccbdb76d9b58.zip | |
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/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 2 |
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, |