summaryrefslogtreecommitdiff
path: root/arch/s390/numa/numa_mode.h
blob: dfd3e27840817ca583da975bf734e35d53c0faca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * NUMA support for s390
 *
 * Define declarations used for communication between NUMA mode
 * implementations and NUMA core functionality.
 *
 * Copyright IBM Corp. 2015
 */
#ifndef __S390_NUMA_MODE_H
#define __S390_NUMA_MODE_H

struct numa_mode {
	char *name;				/* Name of mode */
	void (*setup)(void);			/* Initizalize mode */
	void (*update_cpu_topology)(void);	/* Called by topology code */
	int (*__pfn_to_nid)(unsigned long pfn);	/* PFN to node ID */
	unsigned long (*align)(void);		/* Minimum node alignment */
	int (*distance)(int a, int b);		/* Distance between two nodes */
};

extern const struct numa_mode numa_mode_plain;
extern const struct numa_mode numa_mode_emu;

#endif /* __S390_NUMA_MODE_H */