Am 31.05.21 um 13:30 schrieb Lang Yu:
If a BO's backing store is temporary GTT memory, we should
move it in BO validation.
v2: move the check outside of for loop
Signed-off-by: Lang Yu <Lang.Yu@xxxxxxx>
In general those patches now have my rb, but let me add some more
documentation to them to better explain why we do this.
Thanks,
Christian.
---
drivers/gpu/drm/ttm/ttm_bo.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c32a37d0a460..1802fc77cfcb 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -938,6 +938,9 @@ static bool ttm_bo_places_compat(const struct ttm_place *places,
{
unsigned i;
+ if (mem->placement & TTM_PL_FLAG_TEMPORARY)
+ return false;
+
for (i = 0; i < num_placement; i++) {
const struct ttm_place *heap = &places[i];