[Mesa-dev] [PATCH 2/2] i965: Set tiling on BOs imported with modifiers

[Jason Ekstrand]

We need this to ensure that GTT maps work on buffers we get from Vulkan
on the off chance that someone does a readpixels or something.  Soon, we
will be removing GTT maps from i965 entirely and this can be reverted.
None the less, it's needed for stable.

Cc: mesa-stable at lists.freedesktop.org
Cc: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/intel_screen.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index b563bbf..e877f93 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1043,7 +1043,16 @@ intel_create_image_from_fds_common(__DRIscreen *dri_screen,
 
    image->planar_format = f;
 
-   image->bo = brw_bo_gem_create_from_prime(screen->bufmgr, fds[0]);
+   if (modifier != DRM_FORMAT_MOD_INVALID) {
+      const struct isl_drm_modifier_info *mod_info =
+         isl_drm_modifier_get_info(modifier);
+      uint32_t tiling = isl_tiling_to_i915_tiling(mod_info->tiling);
+      image->bo = brw_bo_gem_create_from_prime_tiled(screen->bufmgr, fds[0],
+                                                     tiling, strides[0]);
+   } else {
+      image->bo = brw_bo_gem_create_from_prime(screen->bufmgr, fds[0]);
+   }
+
    if (image->bo == NULL) {
       free(image);
       return NULL;
-- 
2.5.0.400.gff86faf