1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c2c8e95ff14d..3387cf32f385 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -657,6 +657,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
         int dspbase = (pipe == 0 ? DSPAADDR : DSPBADDR);
         int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
         int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
+        int dsptileoff = (pipe == 0 ? DSPATILEOFF : DSPBTILEOFF);
         int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
         u32 dspcntr, alignment;
         int ret;
@@ -733,6 +734,13 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 mutex_unlock(&dev->struct_mutex);
                 return -EINVAL;
         }
+        if (IS_I965G(dev)) {
+                if (obj_priv->tiling_mode != I915_TILING_NONE)
+                        dspcntr |= DISPPLANE_TILED;
+                else
+                        dspcntr &= ~DISPPLANE_TILED;
+        }
+
         I915_WRITE(dspcntr_reg, dspcntr);
 
         Start = obj_priv->gtt_offset;
@@ -745,6 +753,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 I915_READ(dspbase);
                 I915_WRITE(dspsurf, Start);
                 I915_READ(dspsurf);
+                I915_WRITE(dsptileoff, (y << 16) | x);
         } else {
                 I915_WRITE(dspbase, Start + Offset);
                 I915_READ(dspbase);
@@ -1795,6 +1804,37 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
         }
 }
 
+int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
+                                struct drm_file *file_priv)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
+        struct drm_crtc *crtc = NULL;
+        int pipe = -1;
+
+        if (!dev_priv) {
+                DRM_ERROR("called with no initialization\n");
+                return -EINVAL;
+        }
+
+        list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+                struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+                if (crtc->base.id == pipe_from_crtc_id->crtc_id) {
+                        pipe = intel_crtc->pipe;
+                        break;
+                }
+        }
+
+        if (pipe == -1) {
+                DRM_ERROR("no such CRTC id\n");
+                return -EINVAL;
+        }
+
+        pipe_from_crtc_id->pipe = pipe;
+
+       return 0;
+}
+
 struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe)
 {
         struct drm_crtc *crtc = NULL;