1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * PowerPC64 port: 6*4882a593Smuzhiyun * Copyright (C) 2002 Anton Blanchard, IBM Corp. 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #ifndef _ASM_MMZONE_H_ 9*4882a593Smuzhiyun #define _ASM_MMZONE_H_ 10*4882a593Smuzhiyun #ifdef __KERNEL__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/cpumask.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * generic non-linear memory support: 16*4882a593Smuzhiyun * 17*4882a593Smuzhiyun * 1) we will not split memory into more chunks than will fit into the 18*4882a593Smuzhiyun * flags field of the struct page 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #ifdef CONFIG_NEED_MULTIPLE_NODES 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun extern struct pglist_data *node_data[]; 24*4882a593Smuzhiyun /* 25*4882a593Smuzhiyun * Return a pointer to the node data for node n. 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun #define NODE_DATA(nid) (node_data[nid]) 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* 30*4882a593Smuzhiyun * Following are specific to this numa platform. 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun extern int numa_cpu_lookup_table[]; 34*4882a593Smuzhiyun extern cpumask_var_t node_to_cpumask_map[]; 35*4882a593Smuzhiyun #ifdef CONFIG_MEMORY_HOTPLUG 36*4882a593Smuzhiyun extern unsigned long max_pfn; 37*4882a593Smuzhiyun u64 memory_hotplug_max(void); 38*4882a593Smuzhiyun #else 39*4882a593Smuzhiyun #define memory_hotplug_max() memblock_end_of_DRAM() 40*4882a593Smuzhiyun #endif 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #else 43*4882a593Smuzhiyun #define memory_hotplug_max() memblock_end_of_DRAM() 44*4882a593Smuzhiyun #endif /* CONFIG_NEED_MULTIPLE_NODES */ 45*4882a593Smuzhiyun #ifdef CONFIG_FA_DUMP 46*4882a593Smuzhiyun #define __HAVE_ARCH_RESERVED_KERNEL_PAGES 47*4882a593Smuzhiyun #endif 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #ifdef CONFIG_MEMORY_HOTPLUG 50*4882a593Smuzhiyun extern int create_section_mapping(unsigned long start, unsigned long end, 51*4882a593Smuzhiyun int nid, pgprot_t prot); 52*4882a593Smuzhiyun #endif 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #endif /* __KERNEL__ */ 55*4882a593Smuzhiyun #endif /* _ASM_MMZONE_H_ */ 56