[PATCH AUTOSEL 5.1 015/141] drm/amdgpu: Reserve shared fence for eviction fence

Sasha Levin
2019-07-19T04:03:29Z

From: Felix Kuehling <Felix.Kuehling@amd.com>

[ Upstream commit dd68722c427d5b33420dce0ed0c44b4881e0a416 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 1921dec3df7a..c7de68c495b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -909,6 +909,9 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
amdgpu_bo_sync_wait(vm->root.base.bo, 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);
@@ -922,6 +925,7 @@ 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);
--
2.20.1