i915: Don't rely on fence regs when we don't have to.

We're on the way to telling the kernel about when we need fence regs on our
objects or not, and this will cut the number of places needing them.

1 files changed, 21 insertions, 14 deletions

diff --git a/src/mesa/drivers/dri/i915/i915_vtbl.c b/src/mesa/drivers/dri/i915/i915_vtbl.c
index 115004616f..6ecbc4709b 100644
--- a/src/mesa/drivers/dri/i915/i915_vtbl.c
+++ b/src/mesa/drivers/dri/i915/i915_vtbl.c
@@ -529,6 +529,23 @@ i915_destroy_context(struct intel_context *intel)
    _tnl_free_vertices(&intel->ctx);
 }
 
+void
+i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
+			     uint32_t buffer_id)
+{
+   state[0] = _3DSTATE_BUF_INFO_CMD;
+   state[1] = buffer_id;
+
+   if (region != NULL) {
+      state[1] |= BUF_3D_PITCH(region->pitch * region->cpp);
+
+      if (region->tiling != I915_TILING_NONE) {
+	 state[1] |= BUF_3D_TILED_SURFACE;
+	 if (region->tiling == I915_TILING_Y)
+	    state[1] |= BUF_3D_TILE_WALK_Y;
+      }
+   }
+}
 
 /**
  * Set the drawing regions for the color and depth/stencil buffers.
@@ -562,21 +579,11 @@ i915_state_draw_region(struct intel_context *intel,
    /*
     * Set stride/cpp values
     */
-   if (color_region) {
-      state->Buffer[I915_DESTREG_CBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
-      state->Buffer[I915_DESTREG_CBUFADDR1] =
-         (BUF_3D_ID_COLOR_BACK |
-          BUF_3D_PITCH(color_region->pitch * color_region->cpp) |
-          BUF_3D_USE_FENCE);
-   }
+   i915_set_buf_info_for_region(&state->Buffer[I915_DESTREG_CBUFADDR0],
+				color_region, BUF_3D_ID_COLOR_BACK);
 
-   if (depth_region) {
-      state->Buffer[I915_DESTREG_DBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
-      state->Buffer[I915_DESTREG_DBUFADDR1] =
-         (BUF_3D_ID_DEPTH |
-          BUF_3D_PITCH(depth_region->pitch * depth_region->cpp) |
-          BUF_3D_USE_FENCE);
-   }
+   i915_set_buf_info_for_region(&state->Buffer[I915_DESTREG_DBUFADDR0],
+				depth_region, BUF_3D_ID_DEPTH);
 
    /*
     * Compute/set I915_DESTREG_DV1 value