drm/i915: Fix plane state dumps

Stop dumping plane->state for planes. That is the old state most of the
time and dumping stale information only serves to confuse people.
Instead dump the new state just for the planes included in the
operation. For now we'll include only the planes for the modeset/fastset
pipes in the dumps. But probably we want to dump them all eventually,
just not quite sure how to present that information nicely to the user.

And while at it let's dump a few more interesting bits from the state.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190517193132.8140-14-ville.syrjala@linux.intel.comReviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

drivers/gpu/drm/i915/intel_display.c

@@ -11795,22 +11795,50 @@ static const char *output_formats(enum intel_output_format format)
 	return output_format_str[format];
 }
 
+static void intel_dump_plane_state(const struct intel_plane_state *plane_state)
+{
+	struct intel_plane *plane = to_intel_plane(plane_state->base.plane);
+	const struct drm_framebuffer *fb = plane_state->base.fb;
+	struct drm_format_name_buf format_name;
+
+	if (!fb) {
+		DRM_DEBUG_KMS("[PLANE:%d:%s] fb: [NOFB], visible: %s\n",
+			      plane->base.base.id, plane->base.name,
+			      yesno(plane_state->base.visible));
+		return;
+	}
+
+	DRM_DEBUG_KMS("[PLANE:%d:%s] fb: [FB:%d] %ux%u format = %s, visible: %s\n",
+		      plane->base.base.id, plane->base.name,
+		      fb->base.id, fb->width, fb->height,
+		      drm_get_format_name(fb->format->format, &format_name),
+		      yesno(plane_state->base.visible));
+	DRM_DEBUG_KMS("\trotation: 0x%x, scaler: %d\n",
+		      plane_state->base.rotation, plane_state->scaler_id);
+	if (plane_state->base.visible)
+		DRM_DEBUG_KMS("\tsrc: " DRM_RECT_FP_FMT " dst: " DRM_RECT_FMT "\n",
+			      DRM_RECT_FP_ARG(&plane_state->base.src),
+			      DRM_RECT_ARG(&plane_state->base.dst));
+}
+
 static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
+				   struct intel_atomic_state *state,
 				   const char *context)
 {
 	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
-	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_plane *plane;
-	struct intel_plane *intel_plane;
-	struct intel_plane_state *state;
-	struct drm_framebuffer *fb;
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	const struct intel_plane_state *plane_state;
+	struct intel_plane *plane;
 	char buf[64];
+	int i;
 
 	DRM_DEBUG_KMS("[CRTC:%d:%s] enable: %s %s\n",
 		      crtc->base.base.id, crtc->base.name,
 		      yesno(pipe_config->base.enable), context);
 
+	if (!pipe_config->base.enable)
+		goto dump_planes;
+
 	snprintf_output_types(buf, sizeof(buf), pipe_config->output_types);
 	DRM_DEBUG_KMS("active: %s, output_types: %s (0x%x), output format: %s\n",
 		      yesno(pipe_config->base.active),
@@ -11885,35 +11913,13 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
 
 	intel_dpll_dump_hw_state(dev_priv, &pipe_config->dpll_hw_state);
 
-	DRM_DEBUG_KMS("planes on this crtc\n");
-	list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
-		struct drm_format_name_buf format_name;
-		intel_plane = to_intel_plane(plane);
-		if (intel_plane->pipe != crtc->pipe)
-			continue;
-
-		state = to_intel_plane_state(plane->state);
-		fb = state->base.fb;
-		if (!fb) {
-			DRM_DEBUG_KMS("[PLANE:%d:%s] disabled, scaler_id = %d\n",
-				      plane->base.id, plane->name, state->scaler_id);
-			continue;
-		}
+dump_planes:
+	if (!state)
+		return;
 
-		DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d, fb = %ux%u format = %s\n",
-			      plane->base.id, plane->name,
-			      fb->base.id, fb->width, fb->height,
-			      drm_get_format_name(fb->format->format, &format_name));
-		if (INTEL_GEN(dev_priv) >= 9)
-			DRM_DEBUG_KMS("\tscaler:%d src %dx%d+%d+%d dst %dx%d+%d+%d\n",
-				      state->scaler_id,
-				      state->base.src.x1 >> 16,
-				      state->base.src.y1 >> 16,
-				      drm_rect_width(&state->base.src) >> 16,
-				      drm_rect_height(&state->base.src) >> 16,
-				      state->base.dst.x1, state->base.dst.y1,
-				      drm_rect_width(&state->base.dst),
-				      drm_rect_height(&state->base.dst));
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+		if (plane->pipe == crtc->pipe)
+			intel_dump_plane_state(plane_state);
 	}
 }
 
@@ -12903,8 +12909,8 @@ verify_crtc_state(struct drm_crtc *crtc,
 	if (!intel_pipe_config_compare(dev_priv, sw_config,
 				       pipe_config, false)) {
 		I915_STATE_WARN(1, "pipe state doesn't match!\n");
-		intel_dump_pipe_config(pipe_config, "[hw state]");
-		intel_dump_pipe_config(sw_config, "[sw state]");
+		intel_dump_pipe_config(pipe_config, NULL, "[hw state]");
+		intel_dump_pipe_config(sw_config, NULL, "[sw state]");
 	}
 }
 
@@ -13432,7 +13438,7 @@ static int intel_atomic_check(struct drm_device *dev,
 		    !new_crtc_state->update_pipe)
 			continue;
 
-		intel_dump_pipe_config(new_crtc_state,
+		intel_dump_pipe_config(new_crtc_state, state,
 				       needs_modeset(&new_crtc_state->base) ?
 				       "[modeset]" : "[fastset]");
 	}
@@ -13449,7 +13455,7 @@ static int intel_atomic_check(struct drm_device *dev,
 	 */
 	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
 					    new_crtc_state, i)
-		intel_dump_pipe_config(new_crtc_state, "[failed]");
+		intel_dump_pipe_config(new_crtc_state, state, "[failed]");
 
 	return ret;
 }
@@ -16677,7 +16683,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev,
 	for_each_intel_crtc(&dev_priv->drm, crtc) {
 		crtc_state = to_intel_crtc_state(crtc->base.state);
 		intel_sanitize_crtc(crtc, ctx);
-		intel_dump_pipe_config(crtc_state, "[setup_hw_state]");
+		intel_dump_pipe_config(crtc_state, NULL, "[setup_hw_state]");
 	}
 
 	intel_modeset_update_connector_atomic_state(dev);