drm/amd/display: Add tracepoint for amdgpu_dm

Debug amdgpu_dm could be a complicated task, therefore, this commit adds
tracepoints in some convenient functions such as plane and connector
check inside amdgpu_dm.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -5505,6 +5505,8 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	struct drm_crtc_state *new_crtc_state;
 	int ret;
 
+	trace_amdgpu_dm_connector_atomic_check(new_con_state);
+
 	if (!crtc)
 		return 0;
 
@@ -5610,6 +5612,8 @@ static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
 	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
 	int ret = -EINVAL;
 
+	trace_amdgpu_dm_crtc_atomic_check(state);
+
 	dm_update_crtc_active_planes(crtc, state);
 
 	if (unlikely(!dm_crtc_state->stream &&
@@ -5985,6 +5989,8 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
 	struct drm_crtc_state *new_crtc_state;
 	int ret;
 
+	trace_amdgpu_dm_plane_atomic_check(state);
+
 	dm_plane_state = to_dm_plane_state(state);
 
 	if (!dm_plane_state->dc_state)
@@ -6025,6 +6031,8 @@ static void dm_plane_atomic_async_update(struct drm_plane *plane,
 	struct drm_plane_state *old_state =
 		drm_atomic_get_old_plane_state(new_state->state, plane);
 
+	trace_amdgpu_dm_atomic_update_cursor(new_state);
+
 	swap(plane->state->fb, new_state->fb);
 
 	plane->state->src_x = new_state->src_x;
@@ -7588,6 +7596,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 	int crtc_disable_count = 0;
 	bool mode_set_reset_required = false;
 
+	trace_amdgpu_dm_atomic_commit_tail_begin(state);
+
 	drm_atomic_helper_update_legacy_modeset_state(dev, state);
 
 	dm_state = dm_atomic_get_new_state(state);
@@ -8674,6 +8684,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 	int ret, i;
 	bool lock_and_validation_needed = false;
 
+	trace_amdgpu_dm_atomic_check_begin(state);
+
 	ret = drm_atomic_helper_check_modeset(dev, state);
 	if (ret)
 		goto fail;
@@ -8970,6 +8982,9 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 
 	/* Must be success */
 	WARN_ON(ret);
+
+	trace_amdgpu_dm_atomic_check_finish(state, ret);
+
 	return ret;
 
 fail:
@@ -8980,6 +8995,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 	else
 		DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
 
+	trace_amdgpu_dm_atomic_check_finish(state, ret);
+
 	return ret;
 }