[PATCH 20/24] drm/i915: clean up atomic plane check functions

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

By passing crtc_state to the check_plane functions a lot of duplicated
code can be removed. And now that the transitional helpers are gone the
crtc_state can be reliably obtained.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_atomic_plane.c | 20 +++++--------
 drivers/gpu/drm/i915/intel_display.c      | 48 ++++++++++---------------------
 drivers/gpu/drm/i915/intel_drv.h          |  1 +
 drivers/gpu/drm/i915/intel_sprite.c       | 13 +++------
 4 files changed, 27 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index c79c07ef665c..4d112f6eb122 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -117,9 +117,11 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 	struct intel_plane_state *intel_state = to_intel_plane_state(state);
 	int ret;
 
-	crtc = crtc ? crtc : plane->crtc;
+	crtc = crtc ? crtc : plane->state->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	intel_state->visible = false;
+
 	/*
 	 * Both crtc and plane->crtc could be NULL if we're updating a
 	 * property while the plane is disabled.  We don't actually have
@@ -129,16 +131,8 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 	if (!crtc)
 		return 0;
 
-	/* FIXME: temporary hack necessary while we still use the plane update
-	 * helper. */
-	if (state->state) {
-		crtc_state =
-			intel_atomic_get_crtc_state(state->state, intel_crtc);
-		if (IS_ERR(crtc_state))
-			return PTR_ERR(crtc_state);
-	} else {
-		crtc_state = intel_crtc->config;
-	}
+	crtc_state = to_intel_crtc_state(
+		drm_atomic_get_existing_crtc_state(state->state, crtc));
 
 	/*
 	 * The original src/dest coordinates are stored in state->base, but
@@ -186,8 +180,8 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 		}
 	}
 
-	ret = intel_plane->check_plane(plane, intel_state);
-	if (ret || !state->state)
+	ret = intel_plane->check_plane(plane, crtc_state, intel_state);
+	if (ret)
 		return ret;
 
 	return intel_plane_atomic_calc_changes(&crtc_state->base, state);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 53000a98f865..f31ed51760f7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13374,36 +13374,25 @@ skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state
 
 static int
 intel_check_primary_plane(struct drm_plane *plane,
+			  struct intel_crtc_state *crtc_state,
 			  struct intel_plane_state *state)
 {
-	struct drm_device *dev = plane->dev;
 	struct drm_crtc *crtc = state->base.crtc;
-	struct intel_crtc *intel_crtc;
-	struct intel_crtc_state *crtc_state;
 	struct drm_framebuffer *fb = state->base.fb;
-	struct drm_rect *dest = &state->dst;
-	struct drm_rect *src = &state->src;
-	const struct drm_rect *clip = &state->clip;
-	bool can_position = false;
-	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
 	int min_scale = DRM_PLANE_HELPER_NO_SCALING;
+	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
+	bool can_position = false;
 
-	crtc = crtc ? crtc : plane->crtc;
-	intel_crtc = to_intel_crtc(crtc);
-	crtc_state = state->base.state ?
-		intel_atomic_get_crtc_state(state->base.state, intel_crtc) : NULL;
-
-	if (INTEL_INFO(dev)->gen >= 9) {
-		/* use scaler when colorkey is not required */
-		if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
-			min_scale = 1;
-			max_scale = skl_max_scale(intel_crtc, crtc_state);
-		}
+	/* use scaler when colorkey is not required */
+	if (INTEL_INFO(plane->dev)->gen >= 9 &&
+	    state->ckey.flags == I915_SET_COLORKEY_NONE) {
+		min_scale = 1;
+		max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
 		can_position = true;
 	}
 
-	return drm_plane_helper_check_update(plane, crtc, fb,
-					     src, dest, clip,
+	return drm_plane_helper_check_update(plane, crtc, fb, &state->src,
+					     &state->dst, &state->clip,
 					     min_scale, max_scale,
 					     can_position, true,
 					     &state->visible);
@@ -13601,24 +13590,17 @@ void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *
 
 static int
 intel_check_cursor_plane(struct drm_plane *plane,
+			 struct intel_crtc_state *crtc_state,
 			 struct intel_plane_state *state)
 {
-	struct drm_crtc *crtc = state->base.crtc;
-	struct drm_device *dev = plane->dev;
+	struct drm_crtc *crtc = crtc_state->base.crtc;
 	struct drm_framebuffer *fb = state->base.fb;
-	struct drm_rect *dest = &state->dst;
-	struct drm_rect *src = &state->src;
-	const struct drm_rect *clip = &state->clip;
 	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
-	struct intel_crtc *intel_crtc;
 	unsigned stride;
 	int ret;
 
-	crtc = crtc ? crtc : plane->crtc;
-	intel_crtc = to_intel_crtc(crtc);
-
-	ret = drm_plane_helper_check_update(plane, crtc, fb,
-					    src, dest, clip,
+	ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src,
+					    &state->dst, &state->clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    true, true, &state->visible);
@@ -13630,7 +13612,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
 		return 0;
 
 	/* Check for which cursor types we support */
-	if (!cursor_size_ok(dev, state->base.crtc_w, state->base.crtc_h)) {
+	if (!cursor_size_ok(plane->dev, state->base.crtc_w, state->base.crtc_h)) {
 		DRM_DEBUG("Cursor dimension %dx%d not supported\n",
 			  state->base.crtc_w, state->base.crtc_h);
 		return -EINVAL;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index abf902451466..79e181b3f77b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -602,6 +602,7 @@ struct intel_plane {
 	void (*disable_plane)(struct drm_plane *plane,
 			      struct drm_crtc *crtc, bool force);
 	int (*check_plane)(struct drm_plane *plane,
+			   struct intel_crtc_state *crtc_state,
 			   struct intel_plane_state *state);
 	void (*commit_plane)(struct drm_plane *plane,
 			     struct intel_plane_state *state);
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 1988f0f0364b..5457c8daff3b 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -743,11 +743,12 @@ ilk_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc, bool force)
 
 static int
 intel_check_sprite_plane(struct drm_plane *plane,
+			 struct intel_crtc_state *crtc_state,
 			 struct intel_plane_state *state)
 {
 	struct drm_device *dev = plane->dev;
-	struct intel_crtc *intel_crtc = to_intel_crtc(state->base.crtc);
-	struct intel_crtc_state *crtc_state;
+	struct drm_crtc *crtc = state->base.crtc;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_plane *intel_plane = to_intel_plane(plane);
 	struct drm_framebuffer *fb = state->base.fb;
 	int crtc_x, crtc_y;
@@ -761,14 +762,8 @@ intel_check_sprite_plane(struct drm_plane *plane,
 	bool can_scale;
 	int pixel_size;
 
-	intel_crtc = intel_crtc ? intel_crtc : to_intel_crtc(plane->crtc);
-	crtc_state = state->base.state ?
-		intel_atomic_get_crtc_state(state->base.state, intel_crtc) : NULL;
-
-	if (!fb) {
-		state->visible = false;
+	if (!fb)
 		return 0;
-	}
 
 	/* Don't modify another pipe's plane */
 	if (intel_plane->pipe != intel_crtc->pipe) {
-- 
2.1.0

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