drm/i915/chv: Add cursor pipe offsets

Unsurprisingly the cursor C regiters are also at a weird offset on CHV.
Add more pipe offsets to handle them.

This also gets rid of most of the differences between the i9xx vs. ivb
cursor code. We can unify the remaining code as well, but I'll leave
that for another patch.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Antti Koskipää <antti.koskipaa@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 00a214a..a68dcce 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1190,10 +1190,8 @@
 
 	if (IS_845G(dev) || IS_I865G(dev))
 		cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
-	else if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev))
-		cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
 	else
-		cur_state = I915_READ(CURCNTR_IVB(pipe)) & CURSOR_MODE;
+		cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
 
 	WARN(cur_state != state,
 	     "cursor on pipe %c assertion failure (expected %s, current %s)\n",
@@ -7910,7 +7908,7 @@
 
 	if (intel_crtc->cursor_visible != visible) {
 		int16_t width = intel_crtc->cursor_width;
-		uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
+		uint32_t cntl = I915_READ(CURCNTR(pipe));
 		if (base) {
 			cntl &= ~CURSOR_MODE;
 			cntl |= MCURSOR_GAMMA_ENABLE;
@@ -7936,14 +7934,14 @@
 			cntl |= CURSOR_PIPE_CSC_ENABLE;
 			cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
 		}
-		I915_WRITE(CURCNTR_IVB(pipe), cntl);
+		I915_WRITE(CURCNTR(pipe), cntl);
 
 		intel_crtc->cursor_visible = visible;
 	}
 	/* and commit changes on next vblank */
-	POSTING_READ(CURCNTR_IVB(pipe));
-	I915_WRITE(CURBASE_IVB(pipe), base);
-	POSTING_READ(CURBASE_IVB(pipe));
+	POSTING_READ(CURCNTR(pipe));
+	I915_WRITE(CURBASE(pipe), base);
+	POSTING_READ(CURBASE(pipe));
 }
 
 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
@@ -7990,16 +7988,14 @@
 	if (!visible && !intel_crtc->cursor_visible)
 		return;
 
-	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev)) {
-		I915_WRITE(CURPOS_IVB(pipe), pos);
+	I915_WRITE(CURPOS(pipe), pos);
+
+	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev))
 		ivb_update_cursor(crtc, base);
-	} else {
-		I915_WRITE(CURPOS(pipe), pos);
-		if (IS_845G(dev) || IS_I865G(dev))
-			i845_update_cursor(crtc, base);
-		else
-			i9xx_update_cursor(crtc, base);
-	}
+	else if (IS_845G(dev) || IS_I865G(dev))
+		i845_update_cursor(crtc, base);
+	else
+		i9xx_update_cursor(crtc, base);
 }
 
 static int intel_crtc_cursor_set(struct drm_crtc *crtc,
@@ -12290,15 +12286,9 @@
 		if (!error->pipe[i].power_domain_on)
 			continue;
 
-		if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
-			error->cursor[i].control = I915_READ(CURCNTR(i));
-			error->cursor[i].position = I915_READ(CURPOS(i));
-			error->cursor[i].base = I915_READ(CURBASE(i));
-		} else {
-			error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
-			error->cursor[i].position = I915_READ(CURPOS_IVB(i));
-			error->cursor[i].base = I915_READ(CURBASE_IVB(i));
-		}
+		error->cursor[i].control = I915_READ(CURCNTR(i));
+		error->cursor[i].position = I915_READ(CURPOS(i));
+		error->cursor[i].base = I915_READ(CURBASE(i));
 
 		error->plane[i].control = I915_READ(DSPCNTR(i));
 		error->plane[i].stride = I915_READ(DSPSTRIDE(i));