[PATCH 08/14] drm/i915: Drop intel_update_sprite_watermarks

[Matt Roper <matthew.d.roper@intel.com>]

The only platform that still has an update_sprite_wm entrypoint is SKL;
on SKL, intel_update_sprite_watermarks just updates intel_plane->wm and
then performs a regular watermark update.  However intel_plane->wm is
only used to update a couple fields in intel_wm_config, and those fields
are never used by the SKL code, so on SKL an update_sprite_wm is
effectively identical to an update_wm call.  Since we're already
ensuring that the regular intel_update_wm is called any time we'd try to
call intel_update_sprite_watermarks, the whole call is redundant and can
be dropped.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h      |  4 ---
 drivers/gpu/drm/i915/intel_display.c |  5 ----
 drivers/gpu/drm/i915/intel_drv.h     |  6 ----
 drivers/gpu/drm/i915/intel_pm.c      | 58 ------------------------------------
 drivers/gpu/drm/i915/intel_sprite.c  | 15 ----------
 5 files changed, 88 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 539bfa2..b197d41 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -628,10 +628,6 @@ struct drm_i915_display_funcs {
 			  struct dpll *match_clock,
 			  struct dpll *best_clock);
 	void (*update_wm)(struct drm_crtc *crtc);
-	void (*update_sprite_wm)(struct drm_plane *plane,
-				 struct drm_crtc *crtc,
-				 uint32_t sprite_width, uint32_t sprite_height,
-				 int pixel_size, bool enable, bool scaled);
 	int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
 	void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
 	/* Returns the active state of the crtc, and if the crtc is active,
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index daa0ede..96ceed7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4721,7 +4721,6 @@ static void intel_post_plane_update(struct intel_crtc *crtc)
 	struct intel_crtc_atomic_commit *atomic = &crtc->atomic;
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_plane *plane;
 
 	if (atomic->wait_vblank)
 		intel_wait_for_vblank(dev, crtc->pipe);
@@ -4740,10 +4739,6 @@ static void intel_post_plane_update(struct intel_crtc *crtc)
 	if (atomic->post_enable_primary)
 		intel_post_enable_primary(&crtc->base);
 
-	drm_for_each_plane_mask(plane, dev, atomic->update_sprite_watermarks)
-		intel_update_sprite_watermarks(plane, &crtc->base,
-					       0, 0, 0, false, false);
-
 	memset(atomic, 0, sizeof(*atomic));
 }
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3fa2e66..9885b25 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1380,12 +1380,6 @@ void intel_init_clock_gating(struct drm_device *dev);
 void intel_suspend_hw(struct drm_device *dev);
 int ilk_wm_max_level(const struct drm_device *dev);
 void intel_update_watermarks(struct drm_crtc *crtc);
-void intel_update_sprite_watermarks(struct drm_plane *plane,
-				    struct drm_crtc *crtc,
-				    uint32_t sprite_width,
-				    uint32_t sprite_height,
-				    int pixel_size,
-				    bool enabled, bool scaled);
 void intel_init_pm(struct drm_device *dev);
 void intel_pm_setup(struct drm_device *dev);
 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d601630..3f9e0e2 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3170,18 +3170,9 @@ static void skl_compute_wm_global_parameters(struct drm_device *dev,
 					     struct intel_wm_config *config)
 {
 	struct drm_crtc *crtc;
-	struct drm_plane *plane;
 
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 		config->num_pipes_active += to_intel_crtc(crtc)->active;
-
-	/* FIXME: I don't think we need those two global parameters on SKL */
-	list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
-		struct intel_plane *intel_plane = to_intel_plane(plane);
-
-		config->sprites_enabled |= intel_plane->wm.enabled;
-		config->sprites_scaled |= intel_plane->wm.scaled;
-	}
 }
 
 static bool skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
@@ -3680,39 +3671,6 @@ static void skl_update_wm(struct drm_crtc *crtc)
 	dev_priv->wm.skl_hw = *results;
 }
 
-static void
-skl_update_sprite_wm(struct drm_plane *plane, struct drm_crtc *crtc,
-		     uint32_t sprite_width, uint32_t sprite_height,
-		     int pixel_size, bool enabled, bool scaled)
-{
-	struct intel_plane *intel_plane = to_intel_plane(plane);
-	struct drm_framebuffer *fb = plane->state->fb;
-
-	intel_plane->wm.enabled = enabled;
-	intel_plane->wm.scaled = scaled;
-	intel_plane->wm.horiz_pixels = sprite_width;
-	intel_plane->wm.vert_pixels = sprite_height;
-	intel_plane->wm.tiling = DRM_FORMAT_MOD_NONE;
-
-	/* For planar: Bpp is for UV plane, y_Bpp is for Y plane */
-	intel_plane->wm.bytes_per_pixel =
-		(fb && fb->pixel_format == DRM_FORMAT_NV12) ?
-		drm_format_plane_cpp(plane->state->fb->pixel_format, 1) : pixel_size;
-	intel_plane->wm.y_bytes_per_pixel =
-		(fb && fb->pixel_format == DRM_FORMAT_NV12) ?
-		drm_format_plane_cpp(plane->state->fb->pixel_format, 0) : 0;
-
-	/*
-	 * Framebuffer can be NULL on plane disable, but it does not
-	 * matter for watermarks if we assume no tiling in that case.
-	 */
-	if (fb)
-		intel_plane->wm.tiling = fb->modifier[0];
-	intel_plane->wm.rotation = plane->state->rotation;
-
-	skl_update_wm(crtc);
-}
-
 static void ilk_update_wm(struct drm_crtc *crtc)
 {
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -4148,21 +4106,6 @@ void intel_update_watermarks(struct drm_crtc *crtc)
 		dev_priv->display.update_wm(crtc);
 }
 
-void intel_update_sprite_watermarks(struct drm_plane *plane,
-				    struct drm_crtc *crtc,
-				    uint32_t sprite_width,
-				    uint32_t sprite_height,
-				    int pixel_size,
-				    bool enabled, bool scaled)
-{
-	struct drm_i915_private *dev_priv = plane->dev->dev_private;
-
-	if (dev_priv->display.update_sprite_wm)
-		dev_priv->display.update_sprite_wm(plane, crtc,
-						   sprite_width, sprite_height,
-						   pixel_size, enabled, scaled);
-}
-
 /**
  * Lock protecting IPS related data structures
  */
@@ -7072,7 +7015,6 @@ void intel_init_pm(struct drm_device *dev)
 			dev_priv->display.init_clock_gating =
 				skl_init_clock_gating;
 		dev_priv->display.update_wm = skl_update_wm;
-		dev_priv->display.update_sprite_wm = skl_update_sprite_wm;
 	} else if (HAS_PCH_SPLIT(dev)) {
 		ilk_setup_wm_latency(dev);
 
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 4d27243..fb096e5 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -182,7 +182,6 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 	const int pipe = intel_plane->pipe;
 	const int plane = intel_plane->plane + 1;
 	u32 plane_ctl, stride_div, stride;
-	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 	const struct drm_intel_sprite_colorkey *key =
 		&to_intel_plane_state(drm_plane->state)->ckey;
 	unsigned long surf_addr;
@@ -201,10 +200,6 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 	rotation = drm_plane->state->rotation;
 	plane_ctl |= skl_plane_ctl_rotation(rotation);
 
-	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
-				       pixel_size, true,
-				       src_w != crtc_w || src_h != crtc_h);
-
 	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
 					       fb->pixel_format);
 
@@ -286,8 +281,6 @@ skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 
 	I915_WRITE(PLANE_SURF(pipe, plane), 0);
 	POSTING_READ(PLANE_SURF(pipe, plane));
-
-	intel_update_sprite_watermarks(dplane, crtc, 0, 0, 0, false, false);
 }
 
 static void
@@ -530,10 +523,6 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		sprctl |= SPRITE_PIPE_CSC_ENABLE;
 
-	intel_update_sprite_watermarks(plane, crtc, src_w, src_h, pixel_size,
-				       true,
-				       src_w != crtc_w || src_h != crtc_h);
-
 	/* Sizes are 0 based */
 	src_w--;
 	src_h--;
@@ -667,10 +656,6 @@ ilk_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 	if (IS_GEN6(dev))
 		dvscntr |= DVS_TRICKLE_FEED_DISABLE; /* must disable */
 
-	intel_update_sprite_watermarks(plane, crtc, src_w, src_h,
-				       pixel_size, true,
-				       src_w != crtc_w || src_h != crtc_h);
-
 	/* Sizes are 0 based */
 	src_w--;
 	src_h--;
-- 
2.1.4

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