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

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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: Christian König <christian.koenig@amd.com>
Reported-by: Pelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Tested-by: Pelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20230707120826.3701-1-christian.koenig@amd.com
This commit is contained in:
Christian König 2023-07-07 11:25:00 +02:00
parent 15008052b3
commit a2848d0874
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/ttm/ttm_bo.c
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@ -517,6 +517,12 @@ static bool ttm_bo_evict_swapout_allowable(struct ttm_buffer_object *bo,
{ {
bool ret = false; bool ret = false;
if (bo->pin_count) {
*locked = false;
*busy = false;
return false;
}
if (bo->base.resv == ctx->resv) { if (bo->base.resv == ctx->resv) {
dma_resv_assert_held(bo->base.resv); dma_resv_assert_held(bo->base.resv);
if (ctx->allow_res_evict) if (ctx->allow_res_evict)