[PATCH 18/19] drm/i915: Use new atomic iterator macros in display code

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 156 ++++++++++++++++++-----------------
 1 file changed, 80 insertions(+), 76 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3bd3f6a93c12..d310abace86a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3510,7 +3510,12 @@ __intel_display_resume(struct drm_device *dev,
 	if (!state)
 		return 0;
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	/*
+	 * We've duplicated the state, pointers to the old state are invalid.
+	 *
+	 * Don't attempt to use the old state until we commit the duplicated state.
+	 */
+	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
 		/*
 		 * Force recalculation even if we restore
 		 * current state. With fast modeset this may not result
@@ -5078,13 +5083,12 @@ static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
 	}
 }
 
-static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state)
+static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
+				   struct intel_crtc_state *pipe_config)
 {
 	struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_crtc_state *pipe_config =
-		to_intel_crtc_state(crtc->base.state);
 	struct drm_atomic_state *old_state = old_crtc_state->base.state;
 	struct drm_plane *primary = crtc->base.primary;
 	struct drm_plane_state *old_pri_state =
@@ -5186,12 +5190,11 @@ 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;
+	struct drm_connector_state *conn_state;
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
-		struct drm_connector_state *conn_state = conn->state;
+	for_each_new_connector_in_state(old_state, conn, conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(conn_state->best_encoder);
 
@@ -5207,12 +5210,11 @@ 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;
+	struct drm_connector_state *conn_state;
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
-		struct drm_connector_state *conn_state = conn->state;
+	for_each_new_connector_in_state(old_state, conn, conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(conn_state->best_encoder);
 
@@ -5228,12 +5230,11 @@ 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;
+	struct drm_connector_state *conn_state;
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
-		struct drm_connector_state *conn_state = conn->state;
+	for_each_new_connector_in_state(old_state, conn, conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(conn_state->best_encoder);
 
@@ -5253,7 +5254,7 @@ static void intel_encoders_disable(struct drm_crtc *crtc,
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+	for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(old_conn_state->best_encoder);
 
@@ -5273,7 +5274,7 @@ static void intel_encoders_post_disable(struct drm_crtc *crtc,
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+	for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(old_conn_state->best_encoder);
 
@@ -5293,7 +5294,7 @@ static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
 	struct drm_connector *conn;
 	int i;
 
-	for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+	for_each_old_connector_in_state(old_state, conn, old_conn_state, i) {
 		struct intel_encoder *encoder =
 			to_intel_encoder(old_conn_state->best_encoder);
 
@@ -6573,7 +6574,7 @@ static int intel_mode_max_pixclk(struct drm_device *dev,
 	memcpy(intel_state->min_pixclk, dev_priv->min_pixclk,
 	       sizeof(intel_state->min_pixclk));
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
 		int pixclk = 0;
 
 		if (crtc_state->enable)
@@ -10238,7 +10239,7 @@ static int ilk_max_pixel_rate(struct drm_atomic_state *state)
 	memcpy(intel_state->min_pixclk, dev_priv->min_pixclk,
 	       sizeof(intel_state->min_pixclk));
 
-	for_each_crtc_in_state(state, crtc, cstate, i) {
+	for_each_new_crtc_in_state(state, crtc, cstate, i) {
 		int pixel_rate;
 
 		crtc_state = to_intel_crtc_state(cstate);
@@ -12530,7 +12531,7 @@ static bool check_single_encoder_cloning(struct drm_atomic_state *state,
 	struct drm_connector_state *connector_state;
 	int i;
 
-	for_each_connector_in_state(state, connector, connector_state, i) {
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
 		if (connector_state->crtc != &crtc->base)
 			continue;
 
@@ -12700,7 +12701,7 @@ compute_baseline_pipe_bpp(struct intel_crtc *crtc,
 	state = pipe_config->base.state;
 
 	/* Clamp display bpp to EDID value */
-	for_each_connector_in_state(state, connector, connector_state, i) {
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
 		if (connector_state->crtc != &crtc->base)
 			continue;
 
@@ -12992,7 +12993,7 @@ intel_modeset_pipe_config(struct drm_crtc *crtc,
 			       &pipe_config->pipe_src_w,
 			       &pipe_config->pipe_src_h);
 
-	for_each_connector_in_state(state, connector, connector_state, i) {
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
 		if (connector_state->crtc != crtc)
 			continue;
 
@@ -13023,7 +13024,7 @@ encoder_retry:
 	 * adjust it according to limitations or connector properties, and also
 	 * a chance to reject the mode entirely.
 	 */
-	for_each_connector_in_state(state, connector, connector_state, i) {
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
 		if (connector_state->crtc != crtc)
 			continue;
 
@@ -13072,16 +13073,16 @@ static void
 intel_modeset_update_crtc_state(struct drm_atomic_state *state)
 {
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *new_crtc_state;
 	int i;
 
 	/* Double check state. */
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		to_intel_crtc(crtc)->config = to_intel_crtc_state(new_crtc_state);
 
 		/* Update hwmode for vblank functions */
-		if (crtc->state->active)
-			crtc->hwmode = crtc->state->adjusted_mode;
+		if (new_crtc_state->active)
+			crtc->hwmode = new_crtc_state->adjusted_mode;
 		else
 			crtc->hwmode.crtc_clock = 0;
 
@@ -13753,21 +13754,21 @@ static void intel_modeset_clear_plls(struct drm_atomic_state *state)
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_shared_dpll_config *shared_dpll = NULL;
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	int i;
 
 	if (!dev_priv->display.crtc_compute_clock)
 		return;
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
 		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 		struct intel_shared_dpll *old_dpll =
-			to_intel_crtc_state(crtc->state)->shared_dpll;
+			to_intel_crtc_state(old_crtc_state)->shared_dpll;
 
-		if (!needs_modeset(crtc_state))
+		if (!needs_modeset(new_crtc_state))
 			continue;
 
-		to_intel_crtc_state(crtc_state)->shared_dpll = NULL;
+		to_intel_crtc_state(new_crtc_state)->shared_dpll = NULL;
 
 		if (!old_dpll)
 			continue;
@@ -13796,7 +13797,7 @@ static int haswell_mode_set_planes_workaround(struct drm_atomic_state *state)
 	int i;
 
 	/* look at all crtc's that are going to be enabled in during modeset */
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
 		intel_crtc = to_intel_crtc(crtc);
 
 		if (!crtc_state->active || !needs_modeset(crtc_state))
@@ -13878,7 +13879,7 @@ static int intel_modeset_checks(struct drm_atomic_state *state)
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct drm_i915_private *dev_priv = to_i915(state->dev);
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	int ret = 0, i;
 
 	if (!check_digital_port_conflicts(state)) {
@@ -13889,13 +13890,13 @@ static int intel_modeset_checks(struct drm_atomic_state *state)
 	intel_state->modeset = true;
 	intel_state->active_crtcs = dev_priv->active_crtcs;
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (crtc_state->active)
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		if (new_crtc_state->active)
 			intel_state->active_crtcs |= 1 << i;
 		else
 			intel_state->active_crtcs &= ~(1 << i);
 
-		if (crtc_state->active != crtc->state->active)
+		if (old_crtc_state->active != new_crtc_state->active)
 			intel_state->active_pipe_changes |= drm_crtc_mask(crtc);
 	}
 
@@ -13964,7 +13965,7 @@ static int intel_atomic_check(struct drm_device *dev,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *old_crtc_state, *crtc_state;
 	int ret, i;
 	bool any_ms = false;
 
@@ -13972,12 +13973,12 @@ static int intel_atomic_check(struct drm_device *dev,
 	if (ret)
 		return ret;
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) {
 		struct intel_crtc_state *pipe_config =
 			to_intel_crtc_state(crtc_state);
 
 		/* Catch I915_MODE_FLAG_INHERITED */
-		if (crtc_state->mode.private_flags != crtc->state->mode.private_flags)
+		if (crtc_state->mode.private_flags != old_crtc_state->mode.private_flags)
 			crtc_state->mode_changed = true;
 
 		if (!needs_modeset(crtc_state))
@@ -14004,7 +14005,7 @@ static int intel_atomic_check(struct drm_device *dev,
 
 		if (i915.fastboot &&
 		    intel_pipe_config_compare(dev,
-					to_intel_crtc_state(crtc->state),
+					to_intel_crtc_state(old_crtc_state),
 					pipe_config, true)) {
 			crtc_state->mode_changed = false;
 			to_intel_crtc_state(crtc_state)->update_pipe = true;
@@ -14049,7 +14050,7 @@ static int intel_atomic_prepare_commit(struct drm_device *dev,
 	struct drm_crtc *crtc;
 	int i, ret;
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
 		if (state->legacy_cursor_update)
 			continue;
 
@@ -14069,7 +14070,7 @@ static int intel_atomic_prepare_commit(struct drm_device *dev,
 	mutex_unlock(&dev->struct_mutex);
 
 	if (!ret && !nonblock) {
-		for_each_plane_in_state(state, plane, plane_state, i) {
+		for_each_new_plane_in_state(state, plane, plane_state, i) {
 			struct intel_plane_state *intel_plane_state =
 				to_intel_plane_state(plane_state);
 
@@ -14171,19 +14172,21 @@ static bool needs_vblank_wait(struct intel_crtc_state *crtc_state)
 static void intel_update_crtc(struct drm_crtc *crtc,
 			      struct drm_atomic_state *state,
 			      struct drm_crtc_state *old_crtc_state,
+			      struct drm_crtc_state *new_crtc_state,
 			      unsigned int *crtc_vblank_mask)
 {
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc->state);
-	bool modeset = needs_modeset(crtc->state);
+	struct intel_crtc_state *pipe_config = to_intel_crtc_state(new_crtc_state);
+	bool modeset = needs_modeset(new_crtc_state);
 
 	if (modeset) {
 		update_scanline_offset(intel_crtc);
 		dev_priv->display.crtc_enable(pipe_config, state);
 	} else {
-		intel_pre_plane_update(to_intel_crtc_state(old_crtc_state));
+		intel_pre_plane_update(to_intel_crtc_state(old_crtc_state),
+				       pipe_config);
 	}
 
 	if (drm_atomic_get_existing_plane_state(state, crtc->primary)) {
@@ -14202,15 +14205,15 @@ static void intel_update_crtcs(struct drm_atomic_state *state,
 			       unsigned int *crtc_vblank_mask)
 {
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *old_crtc_state;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	int i;
 
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
-		if (!crtc->state->active)
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		if (!new_crtc_state->active)
 			continue;
 
 		intel_update_crtc(crtc, state, old_crtc_state,
-				  crtc_vblank_mask);
+				  new_crtc_state, crtc_vblank_mask);
 	}
 }
 
@@ -14221,7 +14224,7 @@ static void skl_update_crtcs(struct drm_atomic_state *state,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *old_crtc_state;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	struct skl_ddb_allocation *new_ddb = &intel_state->wm_results.ddb;
 	struct skl_ddb_allocation *cur_ddb = &dev_priv->wm.skl_hw.ddb;
 	unsigned int updated = 0;
@@ -14238,12 +14241,12 @@ static void skl_update_crtcs(struct drm_atomic_state *state,
 		int i;
 		progress = false;
 
-		for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+		for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
 			bool vbl_wait = false;
 			unsigned int cmask = drm_crtc_mask(crtc);
 			pipe = to_intel_crtc(crtc)->pipe;
 
-			if (updated & cmask || !crtc->state->active)
+			if (updated & cmask || !new_crtc_state->active)
 				continue;
 			if (skl_ddb_allocation_overlaps(state, cur_ddb, new_ddb,
 							pipe))
@@ -14258,12 +14261,12 @@ static void skl_update_crtcs(struct drm_atomic_state *state,
 			 * new ddb allocation to take effect.
 			 */
 			if (!skl_ddb_allocation_equals(cur_ddb, new_ddb, pipe) &&
-			    !crtc->state->active_changed &&
+			    !new_crtc_state->active_changed &&
 			    intel_state->wm_results.dirty_pipes != updated)
 				vbl_wait = true;
 
 			intel_update_crtc(crtc, state, old_crtc_state,
-					  crtc_vblank_mask);
+					  new_crtc_state, crtc_vblank_mask);
 
 			if (vbl_wait)
 				intel_wait_for_vblank(dev, pipe);
@@ -14278,7 +14281,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	struct drm_device *dev = state->dev;
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_crtc_state *old_crtc_state;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	struct drm_crtc *crtc;
 	struct intel_crtc_state *intel_cstate;
 	struct drm_plane *plane;
@@ -14288,7 +14291,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	unsigned crtc_vblank_mask = 0;
 	int i, ret;
 
-	for_each_plane_in_state(state, plane, plane_state, i) {
+	for_each_new_plane_in_state(state, plane, plane_state, i) {
 		struct intel_plane_state *intel_plane_state =
 			to_intel_plane_state(plane_state);
 
@@ -14313,22 +14316,23 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 		intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET);
 	}
 
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
 		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 
-		if (needs_modeset(crtc->state) ||
-		    to_intel_crtc_state(crtc->state)->update_pipe) {
+		if (needs_modeset(new_crtc_state) ||
+		    to_intel_crtc_state(new_crtc_state)->update_pipe) {
 			hw_check = true;
 
 			put_domains[to_intel_crtc(crtc)->pipe] =
 				modeset_get_crtc_power_domains(crtc,
-					to_intel_crtc_state(crtc->state));
+					to_intel_crtc_state(new_crtc_state));
 		}
 
-		if (!needs_modeset(crtc->state))
+		if (!needs_modeset(new_crtc_state))
 			continue;
 
-		intel_pre_plane_update(to_intel_crtc_state(old_crtc_state));
+		intel_pre_plane_update(to_intel_crtc_state(old_crtc_state),
+				       to_intel_crtc_state(new_crtc_state));
 
 		if (old_crtc_state->active) {
 			intel_crtc_disable_planes(crtc, old_crtc_state->plane_mask);
@@ -14372,16 +14376,16 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	}
 
 	/* Complete the events for pipes that have now been disabled */
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
-		bool modeset = needs_modeset(crtc->state);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		bool modeset = needs_modeset(new_crtc_state);
 
 		/* Complete events for now disable pipes here. */
-		if (modeset && !crtc->state->active && crtc->state->event) {
+		if (modeset && !new_crtc_state->active && new_crtc_state->event) {
 			spin_lock_irq(&dev->event_lock);
-			drm_crtc_send_vblank_event(crtc, crtc->state->event);
+			drm_crtc_send_vblank_event(crtc, new_crtc_state->event);
 			spin_unlock_irq(&dev->event_lock);
 
-			crtc->state->event = NULL;
+			new_crtc_state->event = NULL;
 		}
 	}
 
@@ -14407,20 +14411,20 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	 *
 	 * TODO: Move this (and other cleanup) to an async worker eventually.
 	 */
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
-		intel_cstate = to_intel_crtc_state(crtc->state);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		intel_cstate = to_intel_crtc_state(new_crtc_state);
 
 		if (dev_priv->display.optimize_watermarks)
 			dev_priv->display.optimize_watermarks(intel_cstate);
 	}
 
-	for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
 		intel_post_plane_update(to_intel_crtc_state(old_crtc_state));
 
 		if (put_domains[i])
 			modeset_put_power_domains(dev_priv, put_domains[i]);
 
-		intel_modeset_verify_crtc(crtc, old_crtc_state, crtc->state);
+		intel_modeset_verify_crtc(crtc, old_crtc_state, new_crtc_state);
 	}
 
 	if (IS_SKYLAKE(dev_priv) && intel_state->modeset &&
@@ -14464,13 +14468,13 @@ static void intel_atomic_commit_work(struct work_struct *work)
 
 static void intel_atomic_track_fbs(struct drm_atomic_state *state)
 {
-	struct drm_plane_state *old_plane_state;
+	struct drm_plane_state *old_plane_state, *new_plane_state;
 	struct drm_plane *plane;
 	int i;
 
-	for_each_plane_in_state(state, plane, old_plane_state, i)
+	for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i)
 		i915_gem_track_fb(intel_fb_obj(old_plane_state->fb),
-				  intel_fb_obj(plane->state->fb),
+				  intel_fb_obj(new_plane_state->fb),
 				  to_intel_plane(plane)->frontbuffer_bit);
 }
 
@@ -16299,7 +16303,7 @@ retry:
 	}
 
 	/* Write calculated watermark values back */
-	for_each_crtc_in_state(state, crtc, cstate, i) {
+	for_each_new_crtc_in_state(state, crtc, cstate, i) {
 		struct intel_crtc_state *cs = to_intel_crtc_state(cstate);
 
 		cs->wm.need_postvbl_update = true;
-- 
2.7.4

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