Revert "drm/amdgpu: install stub fence into potential unused fence pointers"

This reverts commit 4921792e04f2125b5eadef9dbe9417a8354c7eff which is
commit 187916e6ed9d0c3b3abc27429f7a5f8c936bd1f0 upstream.

It is reported to cause a lot of log spam, so should be reverted.

Link: https://lore.kernel.org/r/d32d6919-47cf-4ddc-955a-0759088220ae@gmail.com
Link: https://lore.kernel.org/r/BL1PR12MB5144A0E84378A2666A26AE18F7F2A@BL1PR12MB5144.namprd12.prod.outlook.com
Reported-by: Bryan Jennings <bryjen423@gmail.com>
Reported-by: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Lang Yu <Lang.Yu@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 788611a50a68e5ffb553e9f8dba7b7bade61c65e..0e4554950e07268e7081361faa2f0b3c9fba6773 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2260,7 +2260,6 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
        amdgpu_vm_bo_base_init(&bo_va->base, vm, bo);
 
        bo_va->ref_count = 1;
-       bo_va->last_pt_update = dma_fence_get_stub();
        INIT_LIST_HEAD(&bo_va->valids);
        INIT_LIST_HEAD(&bo_va->invalids);
 
@@ -2975,8 +2974,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
                vm->update_funcs = &amdgpu_vm_cpu_funcs;
        else
                vm->update_funcs = &amdgpu_vm_sdma_funcs;
-
-       vm->last_update = dma_fence_get_stub();
+       vm->last_update = NULL;
        vm->last_unlocked = dma_fence_get_stub();
 
        mutex_init(&vm->eviction_lock);
@@ -3119,7 +3117,7 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
                vm->update_funcs = &amdgpu_vm_sdma_funcs;
        }
        dma_fence_put(vm->last_update);
-       vm->last_update = dma_fence_get_stub();
+       vm->last_update = NULL;
        vm->is_compute_context = true;
 
        /* Free the shadow bo for compute VM */