On Mon, Jan 04, 2016 at 11:54:41AM +0000, Suzuki K. Poulose wrote: > Refactor pmu_write_counter to add __pmu_write_counter() which > will actually write to the counter once the event is validated. > This can be used by hooks specific to CCI PMU model to program > the counter, where the event is already validated. > > Cc: Mark Rutland <[email protected]> > Cc: Punit Agrawal <[email protected]> > Signed-off-by: Suzuki K. Poulose <[email protected]> > --- > drivers/bus/arm-cci.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-)
Acked-by: Mark Rutland <[email protected]> Mark. > diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c > index 3786879..ce0d3ef 100644 > --- a/drivers/bus/arm-cci.c > +++ b/drivers/bus/arm-cci.c > @@ -767,16 +767,22 @@ static u32 pmu_read_counter(struct perf_event *event) > return value; > } > > +static void __pmu_write_counter(struct cci_pmu *cci_pmu, u32 value, int idx) > +{ > + pmu_write_register(cci_pmu, value, idx, CCI_PMU_CNTR); > +} > + > static void pmu_write_counter(struct perf_event *event, u32 value) > { > struct cci_pmu *cci_pmu = to_cci_pmu(event->pmu); > struct hw_perf_event *hw_counter = &event->hw; > int idx = hw_counter->idx; > > - if (unlikely(!pmu_is_valid_counter(cci_pmu, idx))) > + if (unlikely(!pmu_is_valid_counter(cci_pmu, idx))) { > dev_err(&cci_pmu->plat_device->dev, "Invalid CCI PMU counter > %d\n", idx); > - else > - pmu_write_register(cci_pmu, value, idx, CCI_PMU_CNTR); > + return; > + } > + __pmu_write_counter(cci_pmu, value, idx); > } > > static u64 pmu_event_update(struct perf_event *event) > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
