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drm/ttm: refine ghost BO resv criteria 

Ghost BOs need to stick with the resv object only when the origin is imported.

This is a low hanging fruit to avoid OOM situations on evictions.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: xinhui pan <xinhui.pan@amd.com>
Link: https://patchwork.freedesktop.org/patch/352740/
This commit is contained in:
Christian König 2019-11-11 13:44:40 +01:00
parent 23575e7afd
commit 5b34406f54
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/ttm/ttm_bo_util.c
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@ -511,7 +511,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
kref_init(&fbo->base.kref);
fbo->base.destroy = &ttm_transfered_destroy;
fbo->base.acc_size = 0;
if (bo->base.resv == &bo->base._resv)
if (bo->type != ttm_bo_type_sg)
fbo->base.base.resv = &fbo->base.base._resv;
dma_resv_init(&fbo->base.base._resv);