[PATCH 2/2] perf: arm_spe: Enable CONTEXT packets if profiling in CPU mode

From: German Gomez
Date: Thu Jan 13 2022 - 12:54:50 EST


Enable CONTEXT packets in SPE traces if the profiler runs in CPU mode.

Signed-off-by: German Gomez <german.gomez@xxxxxxx>
---
drivers/perf/arm_spe_pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index 8515bf85c..7d9a7fa4f 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -711,7 +711,7 @@ static int arm_spe_pmu_event_init(struct perf_event *event)
!(spe_pmu->features & SPE_PMU_FEAT_FILT_LAT))
return -EOPNOTSUPP;

- spe_pmu->pmscr_cx = perfmon_capable();
+ spe_pmu->pmscr_cx = perfmon_capable() || (event->cpu != -1);
reg = arm_spe_event_to_pmscr(event);
if (!perfmon_capable() &&
(reg & (BIT(SYS_PMSCR_EL1_PA_SHIFT) |
--
2.25.1