i915_vm_alloc_pt_stash
err = i915_vm_alloc_pt_stash(&ppgtt->vm, &stash, ggtt->vm.total);
int i915_vm_alloc_pt_stash(struct i915_address_space *vm,
err = i915_vm_alloc_pt_stash(&vm->vm, &stash, sz);
err = i915_vm_alloc_pt_stash(vma->vm,
err = i915_vm_alloc_pt_stash(&ppgtt->vm, &stash, size);
err = i915_vm_alloc_pt_stash(&ppgtt->vm, &stash, size - last);
if (i915_vm_alloc_pt_stash(vm, &stash,