提交 b4f061a4 编写于 作者: D David S. Miller

sparc64: Make sparc_pmu_{enable,disable}_event() multi-pcr aware.

Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 5ab96841
......@@ -623,27 +623,35 @@ static u64 nop_for_index(int idx)
static inline void sparc_pmu_enable_event(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc, int idx)
{
u64 val, mask = mask_for_index(idx);
int pcr_index = 0;
val = cpuc->pcr[0];
if (sparc_pmu->num_pcrs > 1)
pcr_index = idx;
val = cpuc->pcr[pcr_index];
val &= ~mask;
val |= hwc->config;
cpuc->pcr[0] = val;
cpuc->pcr[pcr_index] = val;
pcr_ops->write_pcr(0, cpuc->pcr[0]);
pcr_ops->write_pcr(pcr_index, cpuc->pcr[pcr_index]);
}
static inline void sparc_pmu_disable_event(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc, int idx)
{
u64 mask = mask_for_index(idx);
u64 nop = nop_for_index(idx);
int pcr_index = 0;
u64 val;
val = cpuc->pcr[0];
if (sparc_pmu->num_pcrs > 1)
pcr_index = idx;
val = cpuc->pcr[pcr_index];
val &= ~mask;
val |= nop;
cpuc->pcr[0] = val;
cpuc->pcr[pcr_index] = val;
pcr_ops->write_pcr(0, cpuc->pcr[0]);
pcr_ops->write_pcr(pcr_index, cpuc->pcr[pcr_index]);
}
static u64 sparc_perf_event_update(struct perf_event *event,
......
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