1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * NUMA support for s390
 4 *
 5 * Define declarations used for communication between NUMA mode
 6 * implementations and NUMA core functionality.
 7 *
 8 * Copyright IBM Corp. 2015
 9 */
10#ifndef __S390_NUMA_MODE_H
11#define __S390_NUMA_MODE_H
12
13struct numa_mode {
14	char *name;				/* Name of mode */
15	void (*setup)(void);			/* Initizalize mode */
16	void (*update_cpu_topology)(void);	/* Called by topology code */
17	int (*__pfn_to_nid)(unsigned long pfn);	/* PFN to node ID */
18	unsigned long (*align)(void);		/* Minimum node alignment */
19	int (*distance)(int a, int b);		/* Distance between two nodes */
20};
21
22extern const struct numa_mode numa_mode_plain;
23extern const struct numa_mode numa_mode_emu;
24
25#endif /* __S390_NUMA_MODE_H */