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drm/amdgpu: fix Null pointer dereference error in amdgpu_device_recover_vram
Use the function of amdgpu_bo_vm_destroy to handle the resource release
of shadow bo. During the amdgpu_mes_self_test, shadow bo released, but
vmbo->shadow_list was not, which caused a null pointer reference error
in amdgpu_device_recover_vram when GPU reset.
Fixes: 6c032c37ac
("drm/amdgpu: Fix vram recover doesn't work after whole GPU reset (v2)")
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Signed-off-by: Horatio Zhang <Hongkun.Zhang@amd.com>
Acked-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
parent
30c3d3b70a
commit
2a1eb1a343
2 changed files with 4 additions and 7 deletions
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@ -79,9 +79,10 @@ static void amdgpu_bo_user_destroy(struct ttm_buffer_object *tbo)
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static void amdgpu_bo_vm_destroy(struct ttm_buffer_object *tbo)
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static void amdgpu_bo_vm_destroy(struct ttm_buffer_object *tbo)
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{
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{
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struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
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struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
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struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
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struct amdgpu_bo *shadow_bo = ttm_to_amdgpu_bo(tbo), *bo;
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struct amdgpu_bo_vm *vmbo;
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struct amdgpu_bo_vm *vmbo;
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bo = shadow_bo->parent;
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vmbo = to_amdgpu_bo_vm(bo);
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vmbo = to_amdgpu_bo_vm(bo);
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/* in case amdgpu_device_recover_vram got NULL of bo->parent */
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/* in case amdgpu_device_recover_vram got NULL of bo->parent */
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if (!list_empty(&vmbo->shadow_list)) {
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if (!list_empty(&vmbo->shadow_list)) {
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@ -694,11 +695,6 @@ int amdgpu_bo_create_vm(struct amdgpu_device *adev,
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return r;
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return r;
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*vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
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*vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
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INIT_LIST_HEAD(&(*vmbo_ptr)->shadow_list);
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/* Set destroy callback to amdgpu_bo_vm_destroy after vmbo->shadow_list
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* is initialized.
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*/
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bo_ptr->tbo.destroy = &amdgpu_bo_vm_destroy;
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return r;
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return r;
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}
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}
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@ -715,6 +711,8 @@ void amdgpu_bo_add_to_shadow_list(struct amdgpu_bo_vm *vmbo)
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mutex_lock(&adev->shadow_list_lock);
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mutex_lock(&adev->shadow_list_lock);
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list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
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list_add_tail(&vmbo->shadow_list, &adev->shadow_list);
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vmbo->shadow->parent = amdgpu_bo_ref(&vmbo->bo);
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vmbo->shadow->tbo.destroy = &amdgpu_bo_vm_destroy;
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mutex_unlock(&adev->shadow_list_lock);
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mutex_unlock(&adev->shadow_list_lock);
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}
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}
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@ -564,7 +564,6 @@ int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
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return r;
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return r;
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}
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}
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(*vmbo)->shadow->parent = amdgpu_bo_ref(bo);
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amdgpu_bo_add_to_shadow_list(*vmbo);
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amdgpu_bo_add_to_shadow_list(*vmbo);
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return 0;
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return 0;
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