Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa...

[linux-2.6-omap-h63xx.git] / drivers / gpu / drm / i915 / i915_gem_tiling.c

diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index e8b85ac4ca041159553f5211e0bc3cbe58f03cc8..a8cb69469c641ff28f4d57df20b51d0dd5772f7c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -119,9 +119,10 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
                            dcc & DCC_CHANNEL_XOR_DISABLE) {
                                swizzle_x = I915_BIT_6_SWIZZLE_9_10;
                                swizzle_y = I915_BIT_6_SWIZZLE_9;
-                       } else if (IS_I965GM(dev) || IS_GM45(dev)) {
-                               /* GM965 only does bit 11-based channel
-                                * randomization
+                       } else if ((IS_I965GM(dev) || IS_GM45(dev)) &&
+                                  (dcc & DCC_CHANNEL_XOR_BIT_17) == 0) {
+                               /* GM965/GM45 does either bit 11 or bit 17
+                                * swizzling.
                                 */
                                swizzle_x = I915_BIT_6_SWIZZLE_9_10_11;
                                swizzle_y = I915_BIT_6_SWIZZLE_9_11;