A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

arm-cci: Group writes to counter

Browse source 
Add a helper to group the writes to PMU counter, this will be
used to delay setting the event period to pmu::pmu_enable()

Cc: Punit Agrawal <[email protected]>
Acked-by: Olof Johansson <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Suzuki K. Poulose <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
This commit is contained in:
Suzuki K Poulose 2016-02-23 10:49:45 +00:00 • committed by Will Deacon
commit a53eb5c62f
1 changed files with 15 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

15
drivers/bus/arm-cci.c
View file

@ -771,6 +771,21 @@ static void pmu_write_counter(struct perf_event *event, u32 value)
pmu_write_register(cci_pmu, value, idx, CCI_PMU_CNTR);
}
static void __maybe_unused
pmu_write_counters(struct cci_pmu *cci_pmu, unsigned long *mask)
{
int i;
struct cci_pmu_hw_events *cci_hw = &cci_pmu->hw_events;
for_each_set_bit(i, mask, cci_pmu->num_cntrs) {
struct perf_event *event = cci_hw->events[i];
if (WARN_ON(!event))
continue;
pmu_write_counter(event, local64_read(&event->hw.prev_count));
}
}
static u64 pmu_event_update(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;