[igt-dev] [PATCH i-g-t v3 03/12] lib/igt_draw: mark buffers as SCANOUT

[Matthew Auld]

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 at intel.com>
Cc: José Roberto de Souza <jose.souza at intel.com>
Cc: Pallavi Mishra <pallavi.mishra at intel.com>
Reviewed-by: Pallavi Mishra <pallavi.mishra at intel.com>
---
 lib/igt_draw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/igt_draw.c b/lib/igt_draw.c
index 9a7664a37..1cf9d87c9 100644
--- a/lib/igt_draw.c
+++ b/lib/igt_draw.c
@@ -797,7 +797,8 @@ static void draw_rect_render(int fd, struct cmd_data *cmd_data,
 	else
 		tmp.handle = xe_bo_create_flags(fd, 0,
 						ALIGN(tmp.size, xe_get_default_alignment(fd)),
-						visible_vram_if_possible(fd, 0));
+						visible_vram_if_possible(fd, 0) |
+						XE_GEM_CREATE_FLAG_SCANOUT);
 
 	tmp.stride = rect->w * pixel_size;
 	tmp.bpp = buf->bpp;
-- 
2.41.0