drm/i915/dsb: s/dsb/dsb_color_vblank/

We'll soon utilize several DSBs during the commit. To that end
rename the current crtc_state->dsb to crtc_state->dsb_color_vblank
to better reflect its role (color managemnent stuff programmed during
vblank).
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240624191032.27333-14-ville.syrjala@linux.intel.comReviewed-by: Animesh Manna <animesh.manna@intel.com>

drivers/gpu/drm/i915/display/intel_atomic.c

@@ -276,7 +276,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
 	crtc_state->do_async_flip = false;
 	crtc_state->fb_bits = 0;
 	crtc_state->update_planes = 0;
-	crtc_state->dsb = NULL;
+	crtc_state->dsb_color_vblank = NULL;
 
 	return &crtc_state->uapi;
 }
@@ -310,7 +310,7 @@ intel_crtc_destroy_state(struct drm_crtc *crtc,
 {
 	struct intel_crtc_state *crtc_state = to_intel_crtc_state(state);
 
-	drm_WARN_ON(crtc->dev, crtc_state->dsb);
+	drm_WARN_ON(crtc->dev, crtc_state->dsb_color_vblank);
 
 	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
 	intel_crtc_free_hw_state(crtc_state);

drivers/gpu/drm/i915/display/intel_color.c

@@ -1313,8 +1313,8 @@ static void ilk_lut_write(const struct intel_crtc_state *crtc_state,
 {
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
-	if (crtc_state->dsb)
-		intel_dsb_reg_write(crtc_state->dsb, reg, val);
+	if (crtc_state->dsb_color_vblank)
+		intel_dsb_reg_write(crtc_state->dsb_color_vblank, reg, val);
 	else
 		intel_de_write_fw(i915, reg, val);
 }
@@ -1337,15 +1337,15 @@ static void ilk_load_lut_8(const struct intel_crtc_state *crtc_state,
 	 * unless we either write each entry twice,
 	 * or use non-posted writes
 	 */
-	if (crtc_state->dsb)
-		intel_dsb_nonpost_start(crtc_state->dsb);
+	if (crtc_state->dsb_color_vblank)
+		intel_dsb_nonpost_start(crtc_state->dsb_color_vblank);
 
 	for (i = 0; i < 256; i++)
 		ilk_lut_write(crtc_state, LGC_PALETTE(pipe, i),
 			      i9xx_lut_8(&lut[i]));
 
-	if (crtc_state->dsb)
-		intel_dsb_nonpost_end(crtc_state->dsb);
+	if (crtc_state->dsb_color_vblank)
+		intel_dsb_nonpost_end(crtc_state->dsb_color_vblank);
 }
 
 static void ilk_load_lut_10(const struct intel_crtc_state *crtc_state,
@@ -1870,7 +1870,7 @@ void intel_color_load_luts(const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
-	if (crtc_state->dsb)
+	if (crtc_state->dsb_color_vblank)
 		return;
 
 	i915->display.funcs.color->load_luts(crtc_state);
@@ -1890,8 +1890,8 @@ void intel_color_commit_arm(const struct intel_crtc_state *crtc_state)
 
 	i915->display.funcs.color->color_commit_arm(crtc_state);
 
-	if (crtc_state->dsb)
-		intel_dsb_commit(crtc_state->dsb, true);
+	if (crtc_state->dsb_color_vblank)
+		intel_dsb_commit(crtc_state->dsb_color_vblank, true);
 }
 
 void intel_color_post_update(const struct intel_crtc_state *crtc_state)
@@ -1919,33 +1919,33 @@ void intel_color_prepare_commit(struct intel_atomic_state *state,
 	if (!crtc_state->pre_csc_lut && !crtc_state->post_csc_lut)
 		return;
 
-	crtc_state->dsb = intel_dsb_prepare(state, crtc, INTEL_DSB_0, 1024);
-	if (!crtc_state->dsb)
+	crtc_state->dsb_color_vblank = intel_dsb_prepare(state, crtc, INTEL_DSB_0, 1024);
+	if (!crtc_state->dsb_color_vblank)
 		return;
 
 	i915->display.funcs.color->load_luts(crtc_state);
 
-	intel_dsb_finish(crtc_state->dsb);
+	intel_dsb_finish(crtc_state->dsb_color_vblank);
 }
 
 void intel_color_cleanup_commit(struct intel_crtc_state *crtc_state)
 {
-	if (!crtc_state->dsb)
+	if (!crtc_state->dsb_color_vblank)
 		return;
 
-	intel_dsb_cleanup(crtc_state->dsb);
-	crtc_state->dsb = NULL;
+	intel_dsb_cleanup(crtc_state->dsb_color_vblank);
+	crtc_state->dsb_color_vblank = NULL;
 }
 
 void intel_color_wait_commit(const struct intel_crtc_state *crtc_state)
 {
-	if (crtc_state->dsb)
-		intel_dsb_wait(crtc_state->dsb);
+	if (crtc_state->dsb_color_vblank)
+		intel_dsb_wait(crtc_state->dsb_color_vblank);
 }
 
 bool intel_color_uses_dsb(const struct intel_crtc_state *crtc_state)
 {
-	return crtc_state->dsb;
+	return crtc_state->dsb_color_vblank;
 }
 
 static bool intel_can_preload_luts(struct intel_atomic_state *state,

drivers/gpu/drm/i915/display/intel_display.c

@@ -7513,7 +7513,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 		 *
 		 * FIXME get rid of this funny new->old swapping
 		 */
-		old_crtc_state->dsb = fetch_and_zero(&new_crtc_state->dsb);
+		old_crtc_state->dsb_color_vblank = fetch_and_zero(&new_crtc_state->dsb_color_vblank);
 	}
 
 	/* Underruns don't always raise interrupts, so check manually */

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -1396,8 +1396,8 @@ struct intel_crtc_state {
 	/* Only valid on TGL+ */
 	enum transcoder mst_master_transcoder;
 
-	/* For DSB related info */
-	struct intel_dsb *dsb;
+	/* For DSB based color LUT updates */
+	struct intel_dsb *dsb_color_vblank;
 
 	u32 psr2_man_track_ctl;