Merge "drm/msm/sde: add kernel traces to measure enable/disable/kickoff times" (41f7afc1) · Commits · e / devices / android_kernel_sony_msm8998

drivers/gpu/drm/msm/dsi-staging/dsi_drm.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@
		#include "msm_kms.h"
		#include "sde_connector.h"
		#include "dsi_drm.h"
		#include "sde_trace.h"

		#define to_dsi_bridge(x) container_of((x), struct dsi_bridge, base)
		#define to_dsi_state(x) container_of((x), struct dsi_connector_state, base)
		@@ -138,19 +139,24 @@ static void dsi_bridge_pre_enable(struct drm_bridge *bridge)
		return;
		}

		SDE_ATRACE_BEGIN("dsi_bridge_pre_enable");
		rc = dsi_display_prepare(c_bridge->display);
		if (rc) {
		pr_err("[%d] DSI display prepare failed, rc=%d\n",
		c_bridge->id, rc);
		SDE_ATRACE_END("dsi_bridge_pre_enable");
		return;
		}

		SDE_ATRACE_BEGIN("dsi_display_enable");
		rc = dsi_display_enable(c_bridge->display);
		if (rc) {
		pr_err("[%d] DSI display enable failed, rc=%d\n",
		c_bridge->id, rc);
		(void)dsi_display_unprepare(c_bridge->display);
		}
		SDE_ATRACE_END("dsi_display_enable");
		SDE_ATRACE_END("dsi_bridge_pre_enable");
		}

		static void dsi_bridge_enable(struct drm_bridge *bridge)
		@@ -201,19 +207,25 @@ static void dsi_bridge_post_disable(struct drm_bridge *bridge)
		return;
		}

		SDE_ATRACE_BEGIN("dsi_bridge_post_disable");
		SDE_ATRACE_BEGIN("dsi_display_disable");
		rc = dsi_display_disable(c_bridge->display);
		if (rc) {
		pr_err("[%d] DSI display disable failed, rc=%d\n",
		c_bridge->id, rc);
		SDE_ATRACE_END("dsi_display_disable");
		return;
		}
		SDE_ATRACE_END("dsi_display_disable");

		rc = dsi_display_unprepare(c_bridge->display);
		if (rc) {
		pr_err("[%d] DSI display unprepare failed, rc=%d\n",
		c_bridge->id, rc);
		SDE_ATRACE_END("dsi_bridge_post_disable");
		return;
		}
		SDE_ATRACE_END("dsi_bridge_post_disable");
		}

		static void dsi_bridge_mode_set(struct drm_bridge *bridge,

drivers/gpu/drm/msm/msm_atomic.c

+17 −2

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		#include "msm_drv.h"
		#include "msm_kms.h"
		#include "msm_gem.h"
		#include "sde_trace.h"

		struct msm_commit {
		struct drm_device *dev;
		@@ -108,6 +109,7 @@ msm_disable_outputs(struct drm_device dev, struct drm_atomic_state old_state)
		struct drm_crtc_state *old_crtc_state;
		int i;

		SDE_ATRACE_BEGIN("msm_disable");
		for_each_connector_in_state(old_state, connector, old_conn_state, i) {
		const struct drm_encoder_helper_funcs *funcs;
		struct drm_encoder *encoder;
		@@ -188,6 +190,7 @@ msm_disable_outputs(struct drm_device dev, struct drm_atomic_state old_state)
		else
		funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
		}
		SDE_ATRACE_END("msm_disable");
		}

		static void
		@@ -297,6 +300,7 @@ static void msm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
		int bridge_enable_count = 0;
		int i;

		SDE_ATRACE_BEGIN("msm_enable");
		for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
		const struct drm_crtc_helper_funcs *funcs;

		@@ -364,8 +368,10 @@ static void msm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
		}

		/* If no bridges were pre_enabled, skip iterating over them again */
		if (bridge_enable_count == 0)
		if (bridge_enable_count == 0) {
		SDE_ATRACE_END("msm_enable");
		return;
		}

		for_each_connector_in_state(old_state, connector, old_conn_state, i) {
		struct drm_encoder *encoder;
		@@ -385,6 +391,7 @@ static void msm_atomic_helper_commit_modeset_enables(struct drm_device *dev,

		drm_bridge_enable(encoder->bridge);
		}
		SDE_ATRACE_END("msm_enable");
		}

		/* The (potentially) asynchronous part of the commit. At this point
		@@ -457,7 +464,9 @@ static void _msm_drm_commit_work_cb(struct kthread_work *work)

		commit = container_of(work, struct msm_commit, commit_work);

		SDE_ATRACE_BEGIN("complete_commit");
		complete_commit(commit);
		SDE_ATRACE_END("complete_commit");
		}

		static struct msm_commit commit_init(struct drm_atomic_state state)
		@@ -553,9 +562,12 @@ int msm_atomic_commit(struct drm_device *dev,
		struct msm_commit *commit;
		int i, ret;

		SDE_ATRACE_BEGIN("atomic_commit");
		ret = drm_atomic_helper_prepare_planes(dev, state);
		if (ret)
		if (ret) {
		SDE_ATRACE_END("atomic_commit");
		return ret;
		}

		commit = commit_init(state);
		if (IS_ERR_OR_NULL(commit)) {
		@@ -635,6 +647,7 @@ int msm_atomic_commit(struct drm_device *dev,

		if (async) {
		msm_queue_fence_cb(dev, &commit->fence_cb, commit->fence);
		SDE_ATRACE_END("atomic_commit");
		return 0;
		}

		@@ -645,9 +658,11 @@ int msm_atomic_commit(struct drm_device *dev,

		complete_commit(commit);

		SDE_ATRACE_END("atomic_commit");
		return 0;

		error:
		drm_atomic_helper_cleanup_planes(dev, state);
		SDE_ATRACE_END("atomic_commit");
		return ret;
		}

drivers/gpu/drm/msm/sde/sde_crtc.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@
		#include "sde_connector.h"
		#include "sde_power_handle.h"
		#include "sde_core_perf.h"
		#include "sde_trace.h"

		/* default input fence timeout, in ms */
		#define SDE_CRTC_INPUT_FENCE_TIMEOUT 2000
		@@ -642,6 +643,7 @@ static void _sde_crtc_wait_for_fences(struct drm_crtc *crtc)
		* that each plane can check its fence status and react appropriately
		* if its fence has timed out.
		*/
		SDE_ATRACE_BEGIN("plane_wait_input_fence");
		drm_atomic_crtc_for_each_plane(plane, crtc) {
		if (wait_ms) {
		/* determine updated wait time */
		@@ -653,6 +655,7 @@ static void _sde_crtc_wait_for_fences(struct drm_crtc *crtc)
		}
		sde_plane_wait_input_fence(plane, wait_ms);
		}
		SDE_ATRACE_END("plane_wait_input_fence");
		}

		static void _sde_crtc_setup_mixer_for_encoder(
		@@ -887,6 +890,7 @@ void sde_crtc_commit_kickoff(struct drm_crtc *crtc)
		sde_kms = _sde_crtc_get_kms(crtc);
		priv = sde_kms->dev->dev_private;

		SDE_ATRACE_BEGIN("crtc_commit");
		list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
		if (encoder->crtc != crtc)
		continue;
		@@ -903,7 +907,7 @@ void sde_crtc_commit_kickoff(struct drm_crtc *crtc)
		SDE_ERROR("crtc%d invalid frame pending\n",
		crtc->base.id);
		SDE_EVT32(DRMID(crtc), 0);
		return;
		goto end;
		} else if (atomic_inc_return(&sde_crtc->frame_pending) == 1) {
		/* acquire bandwidth and other resources */
		SDE_DEBUG("crtc%d first commit\n", crtc->base.id);
		@@ -921,6 +925,9 @@ void sde_crtc_commit_kickoff(struct drm_crtc *crtc)

		sde_encoder_kickoff(encoder);
		}
		end:
		SDE_ATRACE_END("crtc_commit");
		return;
		}

		/**

drivers/gpu/drm/msm/sde/sde_encoder.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@
		#include "sde_formats.h"
		#include "sde_encoder_phys.h"
		#include "sde_color_processing.h"
		#include "sde_trace.h"

		#define SDE_DEBUG_ENC(e, fmt, ...) SDE_DEBUG("enc%d " fmt,\
		(e) ? (e)->base.base.id : -1, ##__VA_ARGS__)
		@@ -514,6 +515,7 @@ static void sde_encoder_vblank_callback(struct drm_encoder *drm_enc,
		if (!drm_enc \|\| !phy_enc)
		return;

		SDE_ATRACE_BEGIN("encoder_vblank_callback");
		sde_enc = to_sde_encoder_virt(drm_enc);

		spin_lock_irqsave(&sde_enc->enc_spinlock, lock_flags);
		@@ -522,6 +524,7 @@ static void sde_encoder_vblank_callback(struct drm_encoder *drm_enc,
		spin_unlock_irqrestore(&sde_enc->enc_spinlock, lock_flags);

		atomic_inc(&phy_enc->vsync_cnt);
		SDE_ATRACE_END("encoder_vblank_callback");
		}

		static void sde_encoder_underrun_callback(struct drm_encoder *drm_enc,
		@@ -530,8 +533,10 @@ static void sde_encoder_underrun_callback(struct drm_encoder *drm_enc,
		if (!phy_enc)
		return;

		SDE_ATRACE_BEGIN("encoder_underrun_callback");
		atomic_inc(&phy_enc->underrun_cnt);
		SDE_EVT32(DRMID(drm_enc), atomic_read(&phy_enc->underrun_cnt));
		SDE_ATRACE_END("encoder_underrun_callback");
		}

		void sde_encoder_register_vblank_callback(struct drm_encoder *drm_enc,
		@@ -832,6 +837,7 @@ void sde_encoder_kickoff(struct drm_encoder *drm_enc)
		SDE_ERROR("invalid encoder\n");
		return;
		}
		SDE_ATRACE_BEGIN("encoder_kickoff");
		sde_enc = to_sde_encoder_virt(drm_enc);

		SDE_DEBUG_ENC(sde_enc, "\n");
		@@ -851,6 +857,7 @@ void sde_encoder_kickoff(struct drm_encoder *drm_enc)
		if (phys && phys->ops.handle_post_kickoff)
		phys->ops.handle_post_kickoff(phys);
		}
		SDE_ATRACE_END("encoder_kickoff");
		}

		static int _sde_encoder_status_show(struct seq_file s, void data)