From: Chunming Zhou David1.Zhou@amd.com
The release of the vmid owner was not handled correctly. We need to take the lock and walk the lru list.
Signed-off-by: Chunming Zhou David1.Zhou@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Monk Liu monk.liu@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 856116a..e06d066 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1454,6 +1454,7 @@ error_free_sched_entity: void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) { struct amdgpu_bo_va_mapping *mapping, *tmp; + struct amdgpu_vm_id *id, *id_tmp; int i;
amd_sched_entity_fini(vm->entity.sched, &vm->entity); @@ -1478,14 +1479,17 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) amdgpu_bo_unref(&vm->page_directory); fence_put(vm->page_directory_fence);
- for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { - struct amdgpu_vm_id *id = vm->ids[i]; - + mutex_lock(&adev->vm_manager.lock); + list_for_each_entry_safe(id, id_tmp, &adev->vm_manager.ids_lru, + list) { if (!id) continue; - - atomic_long_cmpxchg(&id->owner, (long)vm, 0); + if (atomic_long_read(&id->owner) == (long)vm) { + atomic_long_set(&id->owner, 0); + id->pd_gpu_addr = 0; + } } + mutex_unlock(&adev->vm_manager.lock); }
/**