[Intel-xe] [PATCH i-g-t 02/12] lib/igt_fb: mark buffers as SCANOUT
Matthew Auld
matthew.auld at intel.com
Thu Oct 5 15:31:06 UTC 2023
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>
---
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 54a66eb6a..f8a0db22c 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
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