drm/amdgpu: Reserve shared fence for eviction fence

Need to reserve space for the shared eviction fence when initializing
a KFD VM.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 5b4fff9..123eb0d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -897,6 +897,9 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
                                  AMDGPU_FENCE_OWNER_KFD, false);
        if (ret)
                goto wait_pd_fail;
+       ret = reservation_object_reserve_shared(vm->root.base.bo->tbo.resv, 1);
+       if (ret)
+               goto reserve_shared_fail;
        amdgpu_bo_fence(vm->root.base.bo,
                        &vm->process_info->eviction_fence->base, true);
        amdgpu_bo_unreserve(vm->root.base.bo);
@@ -910,6 +913,7 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
 
        return 0;
 
+reserve_shared_fail:
 wait_pd_fail:
 validate_pd_fail:
        amdgpu_bo_unreserve(vm->root.base.bo);