drm/i915: dspaddr_offset doesn't need to be more than local variable

Move u32 dspaddr_offset from struct intel_crtc member into local
variable in i9xx_update_primary_plane()

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1508270891-22186-3-git-send-email-juhapekka.heikkila@gmail.com

drivers/gpu/drm/i915/intel_display.c

@@ -3289,7 +3289,6 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
 				      const struct intel_plane_state *plane_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 	const struct drm_framebuffer *fb = plane_state->base.fb;
 	enum plane plane = primary->plane;
 	u32 linear_offset;
@@ -3298,13 +3297,14 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
 	int x = plane_state->main.x;
 	int y = plane_state->main.y;
 	unsigned long irqflags;
+	u32 dspaddr_offset;
 
 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 
 	if (INTEL_GEN(dev_priv) >= 4)
-		crtc->dspaddr_offset = plane_state->main.offset;
+		dspaddr_offset = plane_state->main.offset;
 	else
-		crtc->dspaddr_offset = linear_offset;
+		dspaddr_offset = linear_offset;
 
 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
@@ -3330,18 +3330,18 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
 		I915_WRITE_FW(DSPSURF(plane),
 			      intel_plane_ggtt_offset(plane_state) +
-			      crtc->dspaddr_offset);
+			      dspaddr_offset);
 		I915_WRITE_FW(DSPOFFSET(plane), (y << 16) | x);
 	} else if (INTEL_GEN(dev_priv) >= 4) {
 		I915_WRITE_FW(DSPSURF(plane),
 			      intel_plane_ggtt_offset(plane_state) +
-			      crtc->dspaddr_offset);
+			      dspaddr_offset);
 		I915_WRITE_FW(DSPTILEOFF(plane), (y << 16) | x);
 		I915_WRITE_FW(DSPLINOFF(plane), linear_offset);
 	} else {
 		I915_WRITE_FW(DSPADDR(plane),
 			      intel_plane_ggtt_offset(plane_state) +
-			      crtc->dspaddr_offset);
+			      dspaddr_offset);
 	}
 	POSTING_READ_FW(reg);
 
@@ -3546,7 +3546,6 @@ static void skylake_update_primary_plane(struct intel_plane *plane,
 					 const struct intel_plane_state *plane_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 	const struct drm_framebuffer *fb = plane_state->base.fb;
 	enum plane_id plane_id = plane->id;
 	enum pipe pipe = plane->pipe;
@@ -3572,8 +3571,6 @@ static void skylake_update_primary_plane(struct intel_plane *plane,
 	dst_w--;
 	dst_h--;
 
-	crtc->dspaddr_offset = surf_addr;
-
 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
 	if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {

drivers/gpu/drm/i915/intel_drv.h

@@ -808,11 +808,6 @@ struct intel_crtc {
 	unsigned long long enabled_power_domains;
 	struct intel_overlay *overlay;
 
-	/* Display surface base address adjustement for pageflips. Note that on
-	 * gen4+ this only adjusts up to a tile, offsets within a tile are
-	 * handled in the hw itself (with the TILEOFF register). */
-	u32 dspaddr_offset;
-
 	struct intel_crtc_state *config;
 
 	/* global reset count when the last flip was submitted */