drm/i915: Handle tiled buffers in vblank tasklet

The vblank tasklet update code must build 2D blt commands with the appropriate
tiled flags

Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 16 insertions, 4 deletions

diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index 675d88bda066..50cd68d6b6cc 100644
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -566,6 +566,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 #define XY_SRC_COPY_BLT_CMD             ((2<<29)|(0x53<<22)|6)
 #define XY_SRC_COPY_BLT_WRITE_ALPHA     (1<<21)
 #define XY_SRC_COPY_BLT_WRITE_RGB       (1<<20)
+#define XY_SRC_COPY_BLT_SRC_TILED       (1<<15)
+#define XY_SRC_COPY_BLT_DST_TILED       (1<<11)
 
 #define MI_BATCH_BUFFER         ((0x30<<23)|1)
 #define MI_BATCH_BUFFER_START   (0x31<<23)
diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index 5a6f8309d8be..f7f16e7a8bf3 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -57,10 +57,20 @@ static void i915_vblank_tasklet(struct drm_device *dev)
                                 XY_SRC_COPY_BLT_WRITE_ALPHA |
                                 XY_SRC_COPY_BLT_WRITE_RGB)
                              : XY_SRC_COPY_BLT_CMD;
-        u32 pitchropcpp = (sarea_priv->pitch * cpp) | (0xcc << 16) |
-                          (cpp << 23) | (1 << 24);
+        u32 src_pitch = sarea_priv->pitch * cpp;
+        u32 dst_pitch = sarea_priv->pitch * cpp;
+        u32 ropcpp = (0xcc << 16) | ((cpp - 1) << 24);
         RING_LOCALS;
 
+        if (sarea_priv->front_tiled) {
+                cmd |= XY_SRC_COPY_BLT_DST_TILED;
+                dst_pitch >>= 2;
+        }
+        if (sarea_priv->back_tiled) {
+                cmd |= XY_SRC_COPY_BLT_SRC_TILED;
+                src_pitch >>= 2;
+        }
+
         DRM_DEBUG("\n");
 
         INIT_LIST_HEAD(&hits);
@@ -194,12 +204,12 @@ static void i915_vblank_tasklet(struct drm_device *dev)
                                 BEGIN_LP_RING(8);
 
                                 OUT_RING(cmd);
-                                OUT_RING(pitchropcpp);
+                                OUT_RING(ropcpp | dst_pitch);
                                 OUT_RING((y1 << 16) | rect->x1);
                                 OUT_RING((y2 << 16) | rect->x2);
                                 OUT_RING(sarea_priv->front_offset);
                                 OUT_RING((y1 << 16) | rect->x1);
-                                OUT_RING(pitchropcpp & 0xffff);
+                                OUT_RING(src_pitch);
                                 OUT_RING(sarea_priv->back_offset);
 
                                 ADVANCE_LP_RING();