[igt-dev] [PATCH i-g-t v4 02/15] lib/igt_fb: mark buffers as SCANOUT

[Matthew Auld <matthew.auld@intel.com>]

Display buffers likely will want WC, instead of the default WB on the
CPU side, given that display engine is incoherent with CPU caches.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Pallavi Mishra <pallavi.mishra@intel.com>
Reviewed-by: Pallavi Mishra <pallavi.mishra@intel.com>
---
 lib/igt_fb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index e531a041e..ad0148339 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -1206,7 +1206,8 @@ static int create_bo_for_fb(struct igt_fb *fb, bool prefer_sysmem)
 			igt_assert(err == 0 || err == -EOPNOTSUPP);
 		} else if (is_xe_device(fd)) {
 			fb->gem_handle = xe_bo_create_flags(fd, 0, fb->size,
-							visible_vram_if_possible(fd, 0));
+							    visible_vram_if_possible(fd, 0) |
+							    XE_GEM_CREATE_FLAG_SCANOUT);
 		} else if (is_vc4_device(fd)) {
 			fb->gem_handle = igt_vc4_create_bo(fd, fb->size);
 
-- 
2.41.0