From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Wed, 6 Mar 2013 23:03:12 +0000 (-0300)
Subject: drm/i915: capture the correct cursor registers on IVB
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/linux-imx.git/commitdiff_plain/a18c4c3d8fd5c0abe955b85a41f50798f321618f

drm/i915: capture the correct cursor registers on IVB

This solves some "unclaimed register" messages when there's a GPU hang
on Haswell.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Add missing IS_VLV check as spotted by Ville Syrjälä.]
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 502cb28a46c9..1dc6c18f3970 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9334,9 +9334,15 @@ intel_display_capture_error_state(struct drm_device *dev)
 	for_each_pipe(i) {
 		cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, 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));
+		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->plane[i].control = I915_READ(DSPCNTR(i));
 		error->plane[i].stride = I915_READ(DSPSTRIDE(i));