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| author | Christian König | 2018-11-29 16:25:10 +0100 |
|---|---|---|
| committer | Alex Deucher | 2018-11-30 18:00:57 +0100 |
| commit | 082f0f21f71c522491a0cac4895b32bbab1b1006 (patch) | |
| tree | 7525ddd4c305a97aa13e0f3b2ba4b1d752b5ef51 /drivers/gpu/drm/ttm | |
| parent | drm/amd/display: Fix NULL ptr deref for commit_planes_to_stream (diff) | |
| download | kernel-qcow2-linux-082f0f21f71c522491a0cac4895b32bbab1b1006.tar.gz kernel-qcow2-linux-082f0f21f71c522491a0cac4895b32bbab1b1006.tar.xz kernel-qcow2-linux-082f0f21f71c522491a0cac4895b32bbab1b1006.zip | |
drm/ttm: fix LRU handling in ttm_buffer_object_transfer
We need to set the NO_EVICT flag on the ghost object or otherwise we are
adding it to the LRU.
When it is added to the LRU we can run into a race between destroying
and evicting it again.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index ba80150d1052..895d77d799e4 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -492,8 +492,10 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo, if (!fbo) return -ENOMEM; - ttm_bo_get(bo); fbo->base = *bo; + fbo->base.mem.placement |= TTM_PL_FLAG_NO_EVICT; + + ttm_bo_get(bo); fbo->bo = bo; /** |