Add helper routines to check if the counter is enabled or not.
Cc: Punit Agrawal <punit.agra...@arm.com>
Acked-by: Mark Rutland <mark.rutl...@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@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 420c30c..d289037 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -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);
--
1.7.9.5
