Messages in this thread Patch in this message | | | From | "Suzuki K. Poulose" <> | Subject | [PATCHv3 2/5] arm-cci: Get the status of a counter | Date | Tue, 17 Nov 2015 18:03:24 +0000 |
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Add helper routines to get the counter status and the event programmed on it.
Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> --- Changes since V2: - Rename pmu_counter_get_ctrl => pmu_counter_is_enabled() --- drivers/bus/arm-cci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index f5793b9..48936c8 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -652,11 +652,23 @@ 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); } +static u32 __maybe_unused +pmu_get_event(struct cci_pmu *cci_pmu, int idx) +{ + return pmu_read_register(cci_pmu, idx, CCI_PMU_EVT_SEL); +} + /* * Returns the number of programmable counters actually implemented * by the cci -- 1.7.9.5
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