Commit 780194b1 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/vm: make each vma take a reference on its parent vm 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 51a506c0

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