Re: [DPU PATCH 05/19] drm/msm: dpu_kms: Replace DPU_EVT with tracepoints

[ryadav-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org]

On 2018-06-21 02:18, Sean Paul wrote:
> This patch converts all DPU_EVTs in dpu_kms with either a DRM_* log
> message or a linux tracepoint.
> 
> Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Rajesh Yadav <ryadav@codeaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c   | 19 ++++++++++++-------
>  drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 16 ++++++++++++++++
>  2 files changed, 28 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index fe614c06bb7b..6ae5bba21074 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -362,7 +362,7 @@ static void
> dpu_kms_wait_for_frame_transfer_complete(struct msm_kms *kms,
>  		 * Cmd Mode   - Wait for PP_DONE. Will be no-op if transfer is
>  		 *              complete
>  		 */
> -		DPU_EVT32_VERBOSE(DRMID(crtc));
> +		trace_dpu_kms_wait_for_frame_transfer(DRMID(crtc));
>  		ret = dpu_encoder_wait_for_event(encoder, MSM_ENC_TX_COMPLETE);
>  		if (ret && ret != -EWOULDBLOCK) {
>  			DPU_ERROR(
> @@ -410,7 +410,7 @@ void dpu_kms_encoder_enable(struct drm_encoder 
> *encoder)
>  		funcs->commit(encoder);
> 
>  	if (crtc && crtc->state->active) {
> -		DPU_EVT32(DRMID(crtc));
> +		trace_dpu_kms_enc_enable(DRMID(crtc));
>  		dpu_crtc_commit_kickoff(crtc);
>  	}
>  }
> @@ -427,7 +427,7 @@ static void dpu_kms_commit(struct msm_kms *kms,
> struct drm_atomic_state *state)
>  			continue;
> 
>  		if (crtc->state->active) {
> -			DPU_EVT32(DRMID(crtc));
> +			trace_dpu_kms_commit(DRMID(crtc));
>  			dpu_crtc_commit_kickoff(crtc);
>  		}
>  	}
> @@ -450,12 +450,14 @@ static void dpu_kms_complete_commit(struct 
> msm_kms *kms,
>  		return;
>  	priv = dpu_kms->dev->dev_private;
> 
> +	DPU_ATRACE_BEGIN("kms_complete_commit");
> +
>  	for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i)
>  		dpu_crtc_complete_commit(crtc, old_crtc_state);
> 
>  	pm_runtime_put_sync(&dpu_kms->pdev->dev);
> 
> -	DPU_EVT32_VERBOSE(DPU_EVTLOG_FUNC_EXIT);
> +	DPU_ATRACE_END("kms_complete_commit");
>  }
> 
>  static void dpu_kms_wait_for_commit_done(struct msm_kms *kms,
> @@ -490,7 +492,7 @@ static void dpu_kms_wait_for_commit_done(struct
> msm_kms *kms,
>  		 * plane_cleanup. For example, wait for vsync in case of video
>  		 * mode panels. This may be a no-op for command mode panels.
>  		 */
> -		DPU_EVT32_VERBOSE(DRMID(crtc));
> +		trace_dpu_kms_wait_for_commit_done(DRMID(crtc));
>  		ret = dpu_encoder_wait_for_event(encoder, MSM_ENC_COMMIT_DONE);
>  		if (ret && ret != -EWOULDBLOCK) {
>  			DPU_ERROR("wait for commit done returned %d\n", ret);
> @@ -1137,7 +1139,6 @@ static int dpu_kms_pm_suspend(struct device *dev)
>  		return -EINVAL;
> 
>  	dpu_kms = to_dpu_kms(ddev_to_msm_kms(ddev));
> -	DPU_EVT32(0);
> 
>  	/* disable hot-plug polling */
>  	drm_kms_helper_poll_disable(ddev);
> @@ -1146,6 +1147,8 @@ static int dpu_kms_pm_suspend(struct device *dev)
>  	drm_modeset_acquire_init(&ctx, 0);
> 
>  retry:
> +	DPU_ATRACE_BEGIN("kms_pm_suspend");
> +
>  	ret = drm_modeset_lock_all_ctx(ddev, &ctx);
>  	if (ret)
>  		goto unlock;
> @@ -1195,6 +1198,7 @@ static int dpu_kms_pm_suspend(struct device *dev)
>  	drm_modeset_drop_locks(&ctx);
>  	drm_modeset_acquire_fini(&ctx);
> 
> +	DPU_ATRACE_END("kms_pm_suspend");
>  	return 0;
>  }
> 
> @@ -1213,7 +1217,7 @@ static int dpu_kms_pm_resume(struct device *dev)
> 
>  	dpu_kms = to_dpu_kms(ddev_to_msm_kms(ddev));
> 
> -	DPU_EVT32(dpu_kms->suspend_state != NULL);
> +	DPU_ATRACE_BEGIN("kms_pm_resume");
> 
>  	drm_mode_config_reset(ddev);
> 
> @@ -1236,6 +1240,7 @@ static int dpu_kms_pm_resume(struct device *dev)
>  	/* enable hot-plug polling */
>  	drm_kms_helper_poll_enable(ddev);
> 
> +	DPU_ATRACE_END("kms_pm_resume");
>  	return 0;
>  }
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> index 99c45b8d84c0..7169ff3a9805 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> @@ -338,6 +338,22 @@ DEFINE_EVENT(dpu_drm_obj_template,
> dpu_crtc_complete_commit,
>  	TP_PROTO(uint32_t drm_id),
>  	TP_ARGS(drm_id)
>  );
> +DEFINE_EVENT(dpu_drm_obj_template, dpu_kms_wait_for_frame_transfer,
> +	TP_PROTO(uint32_t drm_id),
> +	TP_ARGS(drm_id)
> +);
> +DEFINE_EVENT(dpu_drm_obj_template, dpu_kms_enc_enable,
> +	TP_PROTO(uint32_t drm_id),
> +	TP_ARGS(drm_id)
> +);
> +DEFINE_EVENT(dpu_drm_obj_template, dpu_kms_commit,
> +	TP_PROTO(uint32_t drm_id),
> +	TP_ARGS(drm_id)
> +);
> +DEFINE_EVENT(dpu_drm_obj_template, dpu_kms_wait_for_commit_done,
> +	TP_PROTO(uint32_t drm_id),
> +	TP_ARGS(drm_id)
> +);
> 
>  TRACE_EVENT(dpu_enc_enable,
>  	TP_PROTO(uint32_t drm_id, int hdisplay, int vdisplay),
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