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drm/amdgpu: Reserve space for shared fence

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Call reservation_object_reserve_shared to reserve
space for shared fence. Otherwise it will trigger
BUG_ON condition in reservation_object_add_shared_fence.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Acked-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oak Zeng 2019-06-11 11:15:00 -05:00 committed by Alex Deucher
parent c5e4c6bbbd
commit 96cf624b16
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@ -2152,12 +2152,16 @@ int amdgpu_amdkfd_add_gws_to_process(void *info, void *gws, struct kgd_mem **mem
* Add process eviction fence to bo so they can
* evict each other.
*/
ret = reservation_object_reserve_shared(gws_bo->tbo.resv, 1);
if (ret)
goto reserve_shared_fail;
amdgpu_bo_fence(gws_bo, &process_info->eviction_fence->base, true);
amdgpu_bo_unreserve(gws_bo);
mutex_unlock(&(*mem)->process_info->lock);
return ret;
reserve_shared_fail:
bo_validation_failure:
amdgpu_bo_unreserve(gws_bo);
bo_reservation_failure: