18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */
28c2ecf20Sopenharmony_ci/*
38c2ecf20Sopenharmony_ci * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
48c2ecf20Sopenharmony_ci *
58c2ecf20Sopenharmony_ci * PowerPC64 port:
68c2ecf20Sopenharmony_ci * Copyright (C) 2002 Anton Blanchard, IBM Corp.
78c2ecf20Sopenharmony_ci */
88c2ecf20Sopenharmony_ci#ifndef _ASM_MMZONE_H_
98c2ecf20Sopenharmony_ci#define _ASM_MMZONE_H_
108c2ecf20Sopenharmony_ci#ifdef __KERNEL__
118c2ecf20Sopenharmony_ci
128c2ecf20Sopenharmony_ci#include <linux/cpumask.h>
138c2ecf20Sopenharmony_ci
148c2ecf20Sopenharmony_ci/*
158c2ecf20Sopenharmony_ci * generic non-linear memory support:
168c2ecf20Sopenharmony_ci *
178c2ecf20Sopenharmony_ci * 1) we will not split memory into more chunks than will fit into the
188c2ecf20Sopenharmony_ci *    flags field of the struct page
198c2ecf20Sopenharmony_ci */
208c2ecf20Sopenharmony_ci
218c2ecf20Sopenharmony_ci#ifdef CONFIG_NEED_MULTIPLE_NODES
228c2ecf20Sopenharmony_ci
238c2ecf20Sopenharmony_ciextern struct pglist_data *node_data[];
248c2ecf20Sopenharmony_ci/*
258c2ecf20Sopenharmony_ci * Return a pointer to the node data for node n.
268c2ecf20Sopenharmony_ci */
278c2ecf20Sopenharmony_ci#define NODE_DATA(nid)		(node_data[nid])
288c2ecf20Sopenharmony_ci
298c2ecf20Sopenharmony_ci/*
308c2ecf20Sopenharmony_ci * Following are specific to this numa platform.
318c2ecf20Sopenharmony_ci */
328c2ecf20Sopenharmony_ci
338c2ecf20Sopenharmony_ciextern int numa_cpu_lookup_table[];
348c2ecf20Sopenharmony_ciextern cpumask_var_t node_to_cpumask_map[];
358c2ecf20Sopenharmony_ci#ifdef CONFIG_MEMORY_HOTPLUG
368c2ecf20Sopenharmony_ciextern unsigned long max_pfn;
378c2ecf20Sopenharmony_ciu64 memory_hotplug_max(void);
388c2ecf20Sopenharmony_ci#else
398c2ecf20Sopenharmony_ci#define memory_hotplug_max() memblock_end_of_DRAM()
408c2ecf20Sopenharmony_ci#endif
418c2ecf20Sopenharmony_ci
428c2ecf20Sopenharmony_ci#else
438c2ecf20Sopenharmony_ci#define memory_hotplug_max() memblock_end_of_DRAM()
448c2ecf20Sopenharmony_ci#endif /* CONFIG_NEED_MULTIPLE_NODES */
458c2ecf20Sopenharmony_ci
468c2ecf20Sopenharmony_ci#ifdef CONFIG_MEMORY_HOTPLUG
478c2ecf20Sopenharmony_ciextern int create_section_mapping(unsigned long start, unsigned long end,
488c2ecf20Sopenharmony_ci				  int nid, pgprot_t prot);
498c2ecf20Sopenharmony_ci#endif
508c2ecf20Sopenharmony_ci
518c2ecf20Sopenharmony_ci#endif /* __KERNEL__ */
528c2ecf20Sopenharmony_ci#endif /* _ASM_MMZONE_H_ */
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