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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Yasunori Goto762834e2006-06-23 02:03:19 -07002#ifndef __ACPI_NUMA_H
3#define __ACPI_NUMA_H
4
5#ifdef CONFIG_ACPI_NUMA
6#include <linux/kernel.h>
Ross Zwislera0c2d9c2017-07-21 16:51:23 -06007#include <linux/numa.h>
Yasunori Goto762834e2006-06-23 02:03:19 -07008
9/* Proximity bitmap length */
10#if MAX_NUMNODES > 256
11#define MAX_PXM_DOMAINS MAX_NUMNODES
12#else
Len Brownfd350942007-05-09 23:34:35 -040013#define MAX_PXM_DOMAINS (256) /* Old pxm spec is defined 8 bit */
Yasunori Goto762834e2006-06-23 02:03:19 -070014#endif
15
Aaron Durbinf363d162007-05-16 22:11:06 -070016extern int pxm_to_node(int);
17extern int node_to_pxm(int);
Luck, Tony8ff6f482007-05-24 13:57:40 -070018extern int acpi_map_pxm_to_node(int);
Kurt Garloff8df0eb7c2012-01-17 04:18:02 -050019extern unsigned char acpi_srat_revision;
David Daneye84025e2016-05-24 15:35:39 -070020extern int acpi_numa __initdata;
21
22extern void bad_srat(void);
23extern int srat_disabled(void);
Yasunori Goto762834e2006-06-23 02:03:19 -070024
25#endif /* CONFIG_ACPI_NUMA */
26#endif /* __ACP_NUMA_H */