mmzone.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
 4 *
 5 * PowerPC64 port:
 6 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
 7 */
 8#ifndef _ASM_MMZONE_H_
 9#define _ASM_MMZONE_H_
10#ifdef __KERNEL__
11
12#include <linux/cpumask.h>
13
14/*
15 * generic non-linear memory support:
16 *
17 * 1) we will not split memory into more chunks than will fit into the
18 *    flags field of the struct page
19 */
20
21#ifdef CONFIG_NUMA
22
23/*
24 * Following are specific to this numa platform.
25 */
26
27extern int numa_cpu_lookup_table[];
28extern cpumask_var_t node_to_cpumask_map[];
29#ifdef CONFIG_MEMORY_HOTPLUG
30extern unsigned long max_pfn;
31u64 memory_hotplug_max(void);
32u64 hot_add_drconf_memory_max(void);
33#else
34#define memory_hotplug_max() memblock_end_of_DRAM()
35#endif
36
37#else
38#define memory_hotplug_max() memblock_end_of_DRAM()
39#endif /* CONFIG_NUMA */
40
41#endif /* __KERNEL__ */
42#endif /* _ASM_MMZONE_H_ */