Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (24 commits)
  agp/intel: Make intel_i965_mask_memory use dma_addr_t for physical addresses
  agp: add user mapping support to ATI AGP bridge.
  drm/i915: enable GEM on PAE.
  drm/radeon: fix unused variables warning
  agp: switch AGP to use page array instead of unsigned long array
  agpgart: detected ALi M???? chipset with M1621
  drm/radeon: command stream checker for r3xx-r5xx hardware
  drm/radeon: Fully initialize LVDS info also when we can't get it from the ROM.
  radeon: Fix CP byte order on big endian architectures with KMS.
  agp/uninorth: Handle user memory types.
  drm/ttm: Add some powerpc cache flush code.
  radeon: Enable modesetting on non-x86.
  drm/radeon: Respect AGP cant_use_aperture flag.
  drm: EDID endianness fixes.
  drm/radeon: this VRAM vs aperture test is wrong, just remove it.
  drm/ttm: fix an error path to exit function correctly
  drm: Apply "Memory fragmentation from lost alignment blocks"
  ttm: Return -ERESTART when a signal interrupts bo eviction.
  drm: Remove memory debugging infrastructure.
  drm/i915: Clear fence register on tiling stride change.
  ...

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 028f5b66e3d..3e1c7816211 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -828,19 +828,31 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
         }
 
         mutex_lock(&dev->struct_mutex);
-        ret = i915_gem_object_pin(intel_fb->obj, alignment);
+        ret = i915_gem_object_pin(obj, alignment);
         if (ret != 0) {
                 mutex_unlock(&dev->struct_mutex);
                 return ret;
         }
 
-        ret = i915_gem_object_set_to_gtt_domain(intel_fb->obj, 1);
+        ret = i915_gem_object_set_to_gtt_domain(obj, 1);
         if (ret != 0) {
-                i915_gem_object_unpin(intel_fb->obj);
+                i915_gem_object_unpin(obj);
                 mutex_unlock(&dev->struct_mutex);
                 return ret;
         }
 
+        /* Pre-i965 needs to install a fence for tiled scan-out */
+        if (!IS_I965G(dev) &&
+            obj_priv->fence_reg == I915_FENCE_REG_NONE &&
+            obj_priv->tiling_mode != I915_TILING_NONE) {
+                ret = i915_gem_object_get_fence_reg(obj);
+                if (ret != 0) {
+                        i915_gem_object_unpin(obj);
+                        mutex_unlock(&dev->struct_mutex);
+                        return ret;
+                }
+        }
+
         dspcntr = I915_READ(dspcntr_reg);
         /* Mask out pixel format bits in case we change it */
         dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
@@ -860,7 +872,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 break;
         default:
                 DRM_ERROR("Unknown color depth\n");
-                i915_gem_object_unpin(intel_fb->obj);
+                i915_gem_object_unpin(obj);
                 mutex_unlock(&dev->struct_mutex);
                 return -EINVAL;
         }