drm/nouveau/vm: make each vma take a reference on its parent vm (780194b1) · Commits · 戴 / test

drivers/gpu/drm/nouveau/core/subdev/vm/base.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -320,7 +320,8 @@ nouveau_vm_get(struct nouveau_vm *vm, u64 size, u32 page_shift,
		}
		mutex_unlock(&nv_subdev(vmm)->mutex);

		vma->vm = vm;
		vma->vm = NULL;
		nouveau_vm_ref(vm, &vma->vm, NULL);
		vma->offset = (u64)vma->node->offset << 12;
		vma->access = access;
		return 0;
		@@ -342,6 +343,8 @@ nouveau_vm_put(struct nouveau_vma *vma)
		nouveau_vm_unmap_pgt(vm, vma->node->type != vmm->spg_shift, fpde, lpde);
		nouveau_mm_free(&vm->mm, &vma->node);
		mutex_unlock(&nv_subdev(vmm)->mutex);

		nouveau_vm_ref(NULL, &vma->vm, NULL);
		}

		int