Mesa (master): i965/miptree: Initialize mcs with a linear map

[Scott D Phillips]

Module: Mesa
Branch: master
Commit: 3b4f432d9bbdf86bb6e0e84c6053959aa3194daa
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3b4f432d9bbdf86bb6e0e84c6053959aa3194daa

Author: Scott D Phillips <scott.d.phillips at intel.com>
Date:   Tue Jan  9 23:17:00 2018 -0800

i965/miptree: Initialize mcs with a linear map

When initializing mcs, map with MAP_RAW and fill in the linear
map. Removes a place where gtt mapping is used.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 22977d6659..da5e3b0989 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -1652,7 +1652,7 @@ intel_miptree_init_mcs(struct brw_context *brw,
     *
     * Note: the clear value for MCS buffers is all 1's, so we memset to 0xff.
     */
-   void *map = brw_bo_map(brw, mt->mcs_buf->bo, MAP_WRITE);
+   void *map = brw_bo_map(brw, mt->mcs_buf->bo, MAP_WRITE | MAP_RAW);
    if (unlikely(map == NULL)) {
       fprintf(stderr, "Failed to map mcs buffer into GTT\n");
       brw_bo_unreference(mt->mcs_buf->bo);