drm/msm/gpu: Add suspend/resume tracepoints

Signed-off-by: Rob Clark <robdclark@chromium.org>
mariux64 · Sep 12, 2020 · ec1cb6e · ec1cb6e
1 parent 1ef7c99
commit ec1cb6e
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Showing 3 changed files with 32 additions and 0 deletions.
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -931,6 +931,8 @@ static int a6xx_pm_resume(struct msm_gpu *gpu)
 
 	gpu->needs_hw_init = true;
 
+	trace_msm_gpu_resume(0);
+
 	ret = a6xx_gmu_resume(a6xx_gpu);
 	if (ret)
 		return ret;
@@ -945,6 +947,8 @@ static int a6xx_pm_suspend(struct msm_gpu *gpu)
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
 	struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
 
+	trace_msm_gpu_suspend(0);
+
 	devfreq_suspend_device(gpu->devfreq.devfreq);
 
 	return a6xx_gmu_stop(a6xx_gpu);

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
@@ -202,6 +202,7 @@ int msm_gpu_pm_resume(struct msm_gpu *gpu)
 	int ret;
 
 	DBG("%s", gpu->name);
+	trace_msm_gpu_resume(0);
 
 	ret = enable_pwrrail(gpu);
 	if (ret)
@@ -227,6 +228,7 @@ int msm_gpu_pm_suspend(struct msm_gpu *gpu)
 	int ret;
 
 	DBG("%s", gpu->name);
+	trace_msm_gpu_suspend(0);
 
 	devfreq_suspend_device(gpu->devfreq.devfreq);
 

diff --git a/drivers/gpu/drm/msm/msm_gpu_trace.h b/drivers/gpu/drm/msm/msm_gpu_trace.h
@@ -140,6 +140,32 @@ TRACE_EVENT(msm_gem_purge_vmaps,
 		TP_printk("Purging %u vmaps", __entry->unmapped)
 );
 
+
+TRACE_EVENT(msm_gpu_suspend,
+		TP_PROTO(int dummy),
+		TP_ARGS(dummy),
+		TP_STRUCT__entry(
+			__field(u32, dummy)
+			),
+		TP_fast_assign(
+			__entry->dummy = dummy;
+			),
+		TP_printk("%u", __entry->dummy)
+);
+
+
+TRACE_EVENT(msm_gpu_resume,
+		TP_PROTO(int dummy),
+		TP_ARGS(dummy),
+		TP_STRUCT__entry(
+			__field(u32, dummy)
+			),
+		TP_fast_assign(
+			__entry->dummy = dummy;
+			),
+		TP_printk("%u", __entry->dummy)
+);
+
 #endif
 
 #undef TRACE_INCLUDE_PATH