[PATCH 08/42] drm/i915: Implement intel_crtc_toggle using atomic state

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Assume the function is locked with drm_modeset_lock_all for now.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_irq.c      |  2 +-
 drivers/gpu/drm/i915/intel_display.c | 79 ++++++++++++++++++++++--------------
 2 files changed, 50 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 9da955e4f355..a6816503a080 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -796,7 +796,7 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe,
 		return -EINVAL;
 	}
 
-	if (!crtc->state->enable) {
+	if (!crtc->state->active) {
 		DRM_DEBUG_KMS("crtc %d is disabled\n", pipe);
 		return -EBUSY;
 	}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8c2fb951029b..a21b2e51c054 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4656,7 +4656,7 @@ static void intel_crtc_load_lut(struct drm_crtc *crtc)
 	bool reenable_ips = false;
 
 	/* The clocks have to be on to load the palette. */
-	if (!crtc->state->enable || !intel_crtc->active)
+	if (!crtc->state->active || !intel_crtc->active)
 		return;
 
 	if (HAS_GMCH_DISPLAY(dev_priv->dev)) {
@@ -5767,7 +5767,7 @@ static int valleyview_modeset_global_pipes(struct drm_atomic_state *state)
 
 	/* add all active pipes to the state */
 	for_each_crtc(state->dev, crtc) {
-		if (!crtc->state->enable)
+		if (!crtc->state->active)
 			continue;
 
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
@@ -5865,7 +5865,7 @@ static void valleyview_crtc_enable(struct drm_crtc *crtc)
 	int pipe = intel_crtc->pipe;
 	bool is_dsi;
 
-	WARN_ON(!crtc->state->enable);
+	WARN_ON(!crtc->state->active);
 
 	if (intel_crtc->active)
 		return;
@@ -5943,7 +5943,7 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
 	struct intel_encoder *encoder;
 	int pipe = intel_crtc->pipe;
 
-	WARN_ON(!crtc->state->enable);
+	WARN_ON(!crtc->state->active);
 
 	if (intel_crtc->active)
 		return;
@@ -6054,10 +6054,13 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
 void intel_crtc_control(struct drm_crtc *crtc, bool enable)
 {
 	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_mode_config *config = &dev->mode_config;
+	struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	enum intel_display_power_domain domain;
-	unsigned long domains;
+	struct intel_crtc_state *pipe_config;
+	struct drm_plane_state *plane_state;
+	struct drm_atomic_state *state;
+	int ret;
 
 	if (enable == intel_crtc->active)
 		return;
@@ -6065,24 +6068,40 @@ void intel_crtc_control(struct drm_crtc *crtc, bool enable)
 	if (enable && !crtc->state->enable)
 		return;
 
-	crtc->state->active = enable;
-	if (enable) {
-		domains = get_crtc_power_domains(crtc);
-		for_each_power_domain(domain, domains)
-			intel_display_power_get(dev_priv, domain);
-		intel_crtc->enabled_power_domains = domains;
+	/* this function should be called with drm_modeset_lock_all for now */
+	if (WARN_ON(!ctx))
+		return;
+	lockdep_assert_held(&ctx->ww_ctx);
 
-		dev_priv->display.crtc_enable(crtc);
-		intel_crtc_enable_planes(crtc);
-	} else {
-		intel_crtc_disable_planes(crtc);
-		dev_priv->display.crtc_disable(crtc);
+	state = drm_atomic_state_alloc(dev);
+	if (WARN_ON(!state))
+		return;
 
-		domains = intel_crtc->enabled_power_domains;
-		for_each_power_domain(domain, domains)
-			intel_display_power_put(dev_priv, domain);
-		intel_crtc->enabled_power_domains = 0;
+	state->acquire_ctx = ctx;
+	state->allow_modeset = true;
+
+	pipe_config = intel_atomic_get_crtc_state(state, intel_crtc);
+	if (IS_ERR(pipe_config)) {
+		ret = PTR_ERR(pipe_config);
+		goto err;
 	}
+	pipe_config->base.active = enable;
+
+	plane_state = drm_atomic_get_plane_state(state, crtc->primary);
+	if (IS_ERR(plane_state)) {
+		ret = PTR_ERR(plane_state);
+		goto err;
+	}
+
+	ret = intel_set_mode(crtc, state);
+	if (!ret)
+		return;
+
+	DRM_ERROR("Failed to toggle crtc!\n");
+
+err:
+	DRM_ERROR("Updating crtc active failed with %i\n", ret);
+	drm_atomic_state_free(state);
 }
 
 /**
@@ -6158,7 +6177,7 @@ static void intel_connector_check_state(struct intel_connector *connector)
 
 			crtc = encoder->base.crtc;
 
-			I915_STATE_WARN(!crtc->state->enable,
+			I915_STATE_WARN(!crtc->state->active,
 					"crtc not enabled\n");
 			I915_STATE_WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
 			I915_STATE_WARN(pipe != to_intel_crtc(crtc)->pipe,
@@ -11554,7 +11573,7 @@ intel_modeset_update_state(struct drm_atomic_state *state)
 		if (!crtc_state || !needs_modeset(crtc->state))
 			continue;
 
-		if (crtc->state->enable) {
+		if (crtc->state->active) {
 			struct drm_property *dpms_property =
 				dev->mode_config.dpms_property;
 
@@ -12018,7 +12037,7 @@ check_shared_dpll_state(struct drm_device *dev)
 		     pll->on, active);
 
 		for_each_intel_crtc(dev, crtc) {
-			if (crtc->base.state->enable && intel_crtc_to_shared_dpll(crtc) == pll)
+			if (crtc->base.state->active && intel_crtc_to_shared_dpll(crtc) == pll)
 				enabled_crtcs++;
 			if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
 				active_crtcs++;
@@ -12185,7 +12204,7 @@ static int __intel_set_mode_setup_plls(struct drm_atomic_state *state)
 		goto done;
 
 	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (!needs_modeset(crtc_state) || !crtc_state->enable)
+		if (!needs_modeset(crtc_state) || !crtc_state->active)
 			continue;
 
 		intel_crtc = to_intel_crtc(crtc);
@@ -12265,7 +12284,7 @@ static int __intel_set_mode(struct drm_crtc *modeset_crtc,
 	 * pipes; here we assume a single modeset_pipe and only track the
 	 * single crtc and mode.
 	 */
-	if (pipe_config->base.enable && needs_modeset(&pipe_config->base)) {
+	if (pipe_config->base.active && needs_modeset(&pipe_config->base)) {
 		modeset_crtc->mode = pipe_config->base.mode;
 
 		/*
@@ -12290,7 +12309,7 @@ static int __intel_set_mode(struct drm_crtc *modeset_crtc,
 
 	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
 	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (!needs_modeset(crtc->state) || !crtc->state->enable)
+		if (!crtc->state->active)
 			continue;
 
 		update_scanline_offset(to_intel_crtc(crtc));
@@ -14516,7 +14535,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
 	 * have active connectors/encoders. */
 	intel_crtc_update_dpms(&crtc->base);
 
-	if (crtc->active != crtc->base.state->enable) {
+	if (crtc->active != crtc->base.state->active) {
 		struct intel_encoder *encoder;
 
 		/* This can happen either due to bugs in the get_hw_state
@@ -14665,7 +14684,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev,
 
 		crtc->config->quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE;
 
-		if (crtc->active)
+		if (crtc->base.state->active)
 			*crtc_mask |= drm_crtc_index(&crtc->base);
 
 		crtc->active = dev_priv->display.get_pipe_config(crtc,
-- 
2.1.0

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