drm/i915: Pass crtc_state and connector_state to encoder functions

This is mostly code churn, with exception of a few places:
- intel_display.c has changes in intel_sanitize_encoder
- intel_ddi.c has intel_ddi_fdi_disable calling intel_ddi_post_disable,
  and required a function change. Also affects intel_display.c
- intel_dp_mst.c passes a NULL crtc_state and conn_state to
  intel_ddi_post_disable for shutting down the real encoder.

  If we would pass conn_state, then conn_state->connector !=
  intel_dig_port->connector and conn_state->best_encoder !=
  to_intel_encoder(intel_dig_port).

  We also shouldn't pass crtc_state, because in that case the
  disabling sequence may potentially be different depending on
  which crtc is disabled last. Nice way to introduce bugs.

No other functional changes are done, diff stat is already huge.
Each encoder type will need to be fixed to use the atomic states
separately.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470755054-32699-6-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 58 insertions, 44 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ed187e94b02d..554b3f69f4a5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5155,6 +5155,7 @@ static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask
 }
 
 static void intel_encoders_pre_pll_enable(struct drm_crtc *crtc,
+					  struct intel_crtc_state *crtc_state,
 					  struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5170,11 +5171,12 @@ static void intel_encoders_pre_pll_enable(struct drm_crtc *crtc,
 			continue;
 
 		if (encoder->pre_pll_enable)
-			encoder->pre_pll_enable(encoder);
+			encoder->pre_pll_enable(encoder, crtc_state, conn_state);
 	}
 }
 
 static void intel_encoders_pre_enable(struct drm_crtc *crtc,
+				      struct intel_crtc_state *crtc_state,
 				      struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5190,11 +5192,12 @@ static void intel_encoders_pre_enable(struct drm_crtc *crtc,
 			continue;
 
 		if (encoder->pre_enable)
-			encoder->pre_enable(encoder);
+			encoder->pre_enable(encoder, crtc_state, conn_state);
 	}
 }
 
 static void intel_encoders_enable(struct drm_crtc *crtc,
+				  struct intel_crtc_state *crtc_state,
 				  struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5209,12 +5212,13 @@ static void intel_encoders_enable(struct drm_crtc *crtc,
 		if (conn_state->crtc != crtc)
 			continue;
 
-		encoder->enable(encoder);
+		encoder->enable(encoder, crtc_state, conn_state);
 		intel_opregion_notify_encoder(encoder, true);
 	}
 }
 
 static void intel_encoders_disable(struct drm_crtc *crtc,
+				   struct intel_crtc_state *old_crtc_state,
 				   struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5229,11 +5233,12 @@ static void intel_encoders_disable(struct drm_crtc *crtc,
 			continue;
 
 		intel_opregion_notify_encoder(encoder, false);
-		encoder->disable(encoder);
+		encoder->disable(encoder, old_crtc_state, old_conn_state);
 	}
 }
 
 static void intel_encoders_post_disable(struct drm_crtc *crtc,
+					struct intel_crtc_state *old_crtc_state,
 					struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5248,11 +5253,12 @@ static void intel_encoders_post_disable(struct drm_crtc *crtc,
 			continue;
 
 		if (encoder->post_disable)
-			encoder->post_disable(encoder);
+			encoder->post_disable(encoder, old_crtc_state, old_conn_state);
 	}
 }
 
 static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
+					    struct intel_crtc_state *old_crtc_state,
 					    struct drm_atomic_state *old_state)
 {
 	struct drm_connector_state *old_conn_state;
@@ -5267,7 +5273,7 @@ static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
 			continue;
 
 		if (encoder->post_pll_disable)
-			encoder->post_pll_disable(encoder);
+			encoder->post_pll_disable(encoder, old_crtc_state, old_conn_state);
 	}
 }
 
@@ -5316,7 +5322,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	intel_crtc->active = true;
 
-	intel_encoders_pre_enable(crtc, old_state);
+	intel_encoders_pre_enable(crtc, pipe_config, old_state);
 
 	if (intel_crtc->config->has_pch_encoder) {
 		/* Note: FDI PLL enabling _must_ be done before we enable the
@@ -5346,7 +5352,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
 	assert_vblank_disabled(crtc);
 	drm_crtc_vblank_on(crtc);
 
-	intel_encoders_enable(crtc, old_state);
+	intel_encoders_enable(crtc, pipe_config, old_state);
 
 	if (HAS_PCH_CPT(dev))
 		cpt_verify_modeset(dev, intel_crtc->pipe);
@@ -5381,7 +5387,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 		intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
 						      false);
 
-	intel_encoders_pre_pll_enable(crtc, old_state);
+	intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);
 
 	if (intel_crtc->config->shared_dpll)
 		intel_enable_shared_dpll(intel_crtc);
@@ -5419,7 +5425,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 	else
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 
-	intel_encoders_pre_enable(crtc, old_state);
+	intel_encoders_pre_enable(crtc, pipe_config, old_state);
 
 	if (intel_crtc->config->has_pch_encoder)
 		dev_priv->display.fdi_link_train(crtc);
@@ -5460,7 +5466,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 	assert_vblank_disabled(crtc);
 	drm_crtc_vblank_on(crtc);
 
-	intel_encoders_enable(crtc, old_state);
+	intel_encoders_enable(crtc, pipe_config, old_state);
 
 	if (intel_crtc->config->has_pch_encoder) {
 		intel_wait_for_vblank(dev, pipe);
@@ -5513,7 +5519,7 @@ static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
 		intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false);
 	}
 
-	intel_encoders_disable(crtc, old_state);
+	intel_encoders_disable(crtc, old_crtc_state, old_state);
 
 	drm_crtc_vblank_off(crtc);
 	assert_vblank_disabled(crtc);
@@ -5525,7 +5531,7 @@ static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
 	if (intel_crtc->config->has_pch_encoder)
 		ironlake_fdi_disable(crtc);
 
-	intel_encoders_post_disable(crtc, old_state);
+	intel_encoders_post_disable(crtc, old_crtc_state, old_state);
 
 	if (intel_crtc->config->has_pch_encoder) {
 		ironlake_disable_pch_transcoder(dev_priv, pipe);
@@ -5568,7 +5574,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
 		intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
 						      false);
 
-	intel_encoders_disable(crtc, old_state);
+	intel_encoders_disable(crtc, old_crtc_state, old_state);
 
 	drm_crtc_vblank_off(crtc);
 	assert_vblank_disabled(crtc);
@@ -5591,12 +5597,26 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
 	if (!transcoder_is_dsi(cpu_transcoder))
 		intel_ddi_disable_pipe_clock(intel_crtc);
 
-	intel_encoders_post_disable(crtc, old_state);
+	intel_encoders_post_disable(crtc, old_crtc_state, old_state);
 
 	if (intel_crtc->config->has_pch_encoder) {
+		struct drm_connector_state *old_conn_state;
+		struct drm_connector *conn;
+		int i;
+
 		lpt_disable_pch_transcoder(dev_priv);
 		lpt_disable_iclkip(dev_priv);
-		intel_ddi_fdi_disable(crtc);
+
+		for_each_connector_in_state(old_state, conn, old_conn_state, i)
+			if (old_conn_state->crtc == crtc) {
+				struct intel_encoder *encoder =
+					to_intel_encoder(old_conn_state->best_encoder);
+
+				intel_ddi_fdi_disable(encoder,
+						      old_crtc_state,
+						      old_conn_state);
+				break;
+			}
 
 		intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
 						      true);
@@ -6687,7 +6707,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 
-	intel_encoders_pre_pll_enable(crtc, old_state);
+	intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);
 
 	if (IS_CHERRYVIEW(dev)) {
 		chv_prepare_pll(intel_crtc, intel_crtc->config);
@@ -6697,7 +6717,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
 		vlv_enable_pll(intel_crtc, intel_crtc->config);
 	}
 
-	intel_encoders_pre_enable(crtc, old_state);
+	intel_encoders_pre_enable(crtc, pipe_config, old_state);
 
 	i9xx_pfit_enable(intel_crtc);
 
@@ -6709,7 +6729,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
 	assert_vblank_disabled(crtc);
 	drm_crtc_vblank_on(crtc);
 
-	intel_encoders_enable(crtc, old_state);
+	intel_encoders_enable(crtc, pipe_config, old_state);
 }
 
 static void i9xx_set_pll_dividers(struct intel_crtc *crtc)
@@ -6748,7 +6768,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
 	if (!IS_GEN2(dev))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 
-	intel_encoders_pre_enable(crtc, old_state);
+	intel_encoders_pre_enable(crtc, pipe_config, old_state);
 
 	i9xx_enable_pll(intel_crtc);
 
@@ -6762,7 +6782,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
 	assert_vblank_disabled(crtc);
 	drm_crtc_vblank_on(crtc);
 
-	intel_encoders_enable(crtc, old_state);
+	intel_encoders_enable(crtc, pipe_config, old_state);
 }
 
 static void i9xx_pfit_disable(struct intel_crtc *crtc)
@@ -6796,7 +6816,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
 	if (IS_GEN2(dev))
 		intel_wait_for_vblank(dev, pipe);
 
-	intel_encoders_disable(crtc, old_state);
+	intel_encoders_disable(crtc, old_crtc_state, old_state);
 
 	drm_crtc_vblank_off(crtc);
 	assert_vblank_disabled(crtc);
@@ -6805,7 +6825,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
 
 	i9xx_pfit_disable(intel_crtc);
 
-	intel_encoders_post_disable(crtc, old_state);
+	intel_encoders_post_disable(crtc, old_crtc_state, old_state);
 
 	if (!intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DSI)) {
 		if (IS_CHERRYVIEW(dev))
@@ -6816,7 +6836,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
 			i9xx_disable_pll(intel_crtc);
 	}
 
-	intel_encoders_post_pll_disable(crtc, old_state);
+	intel_encoders_post_pll_disable(crtc, old_crtc_state, old_state);
 
 	if (!IS_GEN2(dev))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
@@ -16386,17 +16406,6 @@ static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
 	return false;
 }
 
-static bool intel_encoder_has_connectors(struct intel_encoder *encoder)
-{
-	struct drm_device *dev = encoder->base.dev;
-	struct intel_connector *connector;
-
-	for_each_connector_on_encoder(dev, &encoder->base, connector)
-		return true;
-
-	return false;
-}
-
 static bool has_pch_trancoder(struct drm_i915_private *dev_priv,
 			      enum transcoder pch_transcoder)
 {
@@ -16500,6 +16509,7 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
 {
 	struct intel_connector *connector;
 	struct drm_device *dev = encoder->base.dev;
+	bool found_connector = false;
 
 	/* We need to check both for a crtc link (meaning that the
 	 * encoder is active and trying to read from a pipe) and the
@@ -16507,7 +16517,12 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
 	bool has_active_crtc = encoder->base.crtc &&
 		to_intel_crtc(encoder->base.crtc)->active;
 
-	if (intel_encoder_has_connectors(encoder) && !has_active_crtc) {
+	for_each_connector_on_encoder(dev, &encoder->base, connector) {
+		found_connector = true;
+		break;
+	}
+
+	if (found_connector && !has_active_crtc) {
 		DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
 			      encoder->base.base.id,
 			      encoder->base.name);
@@ -16516,12 +16531,14 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
 		 * fallout from our resume register restoring. Disable
 		 * the encoder manually again. */
 		if (encoder->base.crtc) {
+			struct drm_crtc_state *crtc_state = encoder->base.crtc->state;
+
 			DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
 				      encoder->base.base.id,
 				      encoder->base.name);
-			encoder->disable(encoder);
+			encoder->disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
 			if (encoder->post_disable)
-				encoder->post_disable(encoder);
+				encoder->post_disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
 		}
 		encoder->base.crtc = NULL;
 
@@ -16529,12 +16546,9 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
 		 * a bug in one of the get_hw_state functions. Or someplace else
 		 * in our code, like the register restore mess on resume. Clamp
 		 * things to off as a safer default. */
-		for_each_intel_connector(dev, connector) {
-			if (connector->encoder != encoder)
-				continue;
-			connector->base.dpms = DRM_MODE_DPMS_OFF;
-			connector->base.encoder = NULL;
-		}
+
+		connector->base.dpms = DRM_MODE_DPMS_OFF;
+		connector->base.encoder = NULL;
 	}
 	/* Enabled encoders without active connectors will be fixed in
 	 * the crtc fixup. */