From: xinhui pan Date: Wed, 10 Nov 2021 04:31:49 +0000 (+0800) Subject: drm/ttm: Double check mem_type of BO while eviction X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7120a447c7fe37a123ab7a63afefdbf0787b9002;p=linux.git drm/ttm: Double check mem_type of BO while eviction BO might sit in a wrong lru list as there is a small period of memory moving and lru list updating. Lets skip eviction if we hit such mismatch. Suggested-by: Christian König Signed-off-by: xinhui pan Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20211110043149.57554-2-xinhui.pan@amd.com Signed-off-by: Christian König --- diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index bb9e02c31946e..1ddf458aed71c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -617,7 +617,8 @@ static bool ttm_bo_evict_swapout_allowable(struct ttm_buffer_object *bo, *busy = !ret; } - if (ret && place && !bo->bdev->funcs->eviction_valuable(bo, place)) { + if (ret && place && (bo->resource->mem_type != place->mem_type || + !bo->bdev->funcs->eviction_valuable(bo, place))) { ret = false; if (*locked) { dma_resv_unlock(bo->base.resv);