Re: [PATCH v1 2/6] perf auxtrace arm: Set the 'auxtrace' flag for AUX events

From: Leo Yan
Date: Mon Jul 22 2024 - 10:36:13 EST


On 7/22/24 11:49, Adrian Hunter wrote:
On 21/07/24 23:21, Leo Yan wrote:
Originally, the 'auxtrace' flag in the PMU event is used for AUX area
sampling. It indicates a PMU event is for AUX tracing.

Set this flag for AUX trace events on Arm.

Signed-off-by: Leo Yan <leo.yan@xxxxxxx>

Note same as:

https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Fall%2F20240715160712.127117-6-adrian.hunter%40intel.com%2F&data=05%7C02%7Cleo.yan%40arm.com%7C909e738ccfd84b1ad1dc08dcaa3bf922%7Cf34e597957d94aaaad4db122a662184d%7C0%7C0%7C638572421778104310%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=rJq9SLjbFOrZRkWIGLj8Xj682h%2BW%2FD8O0IL3ac0UcO4%3D&reserved=0

Either should be fine:

Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>

Thank you for the patch, I will drop my one.

Leo
---
tools/perf/arch/arm/util/pmu.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c
index 1c9541d01722..b7fa1245e242 100644
--- a/tools/perf/arch/arm/util/pmu.c
+++ b/tools/perf/arch/arm/util/pmu.c
@@ -25,6 +25,7 @@ void perf_pmu__arch_init(struct perf_pmu *pmu)
/* add ETM default config here */
pmu->selectable = true;
pmu->perf_event_attr_init_default = cs_etm_get_default_config;
+ pmu->auxtrace = true;
#if defined(__aarch64__)
} else if (strstarts(pmu->name, ARM_SPE_PMU_NAME)) {
pmu->selectable = true;
@@ -32,8 +33,10 @@ void perf_pmu__arch_init(struct perf_pmu *pmu)
pmu->perf_event_attr_init_default = arm_spe_pmu_default_config;
if (strstarts(pmu->name, "arm_spe_"))
pmu->mem_events = perf_mem_events_arm;
+ pmu->auxtrace = true;
} else if (strstarts(pmu->name, HISI_PTT_PMU_NAME)) {
pmu->selectable = true;
+ pmu->auxtrace = true;
#endif
}
#endif