From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Thu, 13 Jul 2017 00:06:29 +0000 (-0700)
Subject: i965/screen: Allocate ZEROED BOs for images
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cbee2d1102c50c631285fda4411bd6abc86c3d66;p=mesa.git

i965/screen: Allocate ZEROED BOs for images

Reviewed-by: Chad Versace <chadversary@chromium.org>
---

diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 68026d991be..f137e3ecf97 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -674,9 +674,13 @@ intel_create_image_common(__DRIscreen *dri_screen,
       return NULL;
    }
 
+   /* We request that the bufmgr zero because, if a buffer gets re-used from
+    * the pool, we don't want to leak random garbage from our process to some
+    * other.
+    */
    image->bo = brw_bo_alloc_tiled(screen->bufmgr, "image", surf.size,
                                   isl_tiling_to_i915_tiling(mod_info->tiling),
-                                  surf.row_pitch, 0);
+                                  surf.row_pitch, BO_ALLOC_ZEROED);
    if (image->bo == NULL) {
       free(image);
       return NULL;