Commit a2848d08 authored by Christian König's avatar Christian König
Browse files

drm/ttm: never consider pinned BOs for eviction&swap 



There is a small window where we have already incremented the pin count
but not yet moved the bo from the lru to the pinned list.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reported-by: default avatarPelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Tested-by: default avatarPelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20230707120826.3701-1-christian.koenig@amd.com
parent 15008052

drivers/gpu/drm/ttm/ttm_bo.c

+6 −0
Original line number Diff line number Diff line
@@ -517,6 +517,12 @@ static bool ttm_bo_evict_swapout_allowable(struct ttm_buffer_object *bo, 
{

	bool ret = false;



	if (bo->pin_count) {

		*locked = false;

		*busy = false;

		return false;

	}



	if (bo->base.resv == ctx->resv) {

		dma_resv_assert_held(bo->base.resv);

		if (ctx->allow_res_evict)