Messages in this thread Patch in this message | | | From | "Suzuki K. Poulose" <> | Subject | [PATCH v5 06/11] arm-cci: Get the status of a counter | Date | Mon, 4 Jan 2016 11:54:45 +0000 |
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Add helper routines to check if the counter is enabled or not.
Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> --- drivers/bus/arm-cci.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index c768ee4..a3938ef 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -660,6 +660,12 @@ 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); -- 1.7.9.5
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