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arm-cci: Get the status of a counter

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Add helper routines to check if the counter is enabled or not.

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 10:49:49 +00:00 • committed by Will Deacon
commit 1ce6311b99
1 changed files with 6 additions and 0 deletions
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6
drivers/bus/arm-cci.c
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@ -707,6 +707,12 @@ static void pmu_enable_counter(struct cci_pmu *cci_pmu, int idx)
pmu_write_register(cci_pmu, 1, idx, CCI_PMU_CNTR_CTRL);
}
static bool __maybe_unused
pmu_counter_is_enabled(struct cci_pmu *cci_pmu, int idx)
{
return (pmu_read_register(cci_pmu, idx, CCI_PMU_CNTR_CTRL) & 0x1) != 0;
}
static void pmu_set_event(struct cci_pmu *cci_pmu, int idx, unsigned long event)
{
pmu_write_register(cci_pmu, event, idx, CCI_PMU_EVT_SEL);