| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99 |
| * |
| * PowerPC64 port: |
| * Copyright (C) 2002 Anton Blanchard, IBM Corp. |
| */ |
| #ifndef _ASM_MMZONE_H_ |
| #define _ASM_MMZONE_H_ |
| #ifdef __KERNEL__ |
| |
| #include <linux/cpumask.h> |
| |
| /* |
| * generic non-linear memory support: |
| * |
| * 1) we will not split memory into more chunks than will fit into the |
| * flags field of the struct page |
| */ |
| |
| #ifdef CONFIG_NUMA |
| |
| extern struct pglist_data *node_data[]; |
| /* |
| * Return a pointer to the node data for node n. |
| */ |
| #define NODE_DATA(nid) (node_data[nid]) |
| |
| /* |
| * Following are specific to this numa platform. |
| */ |
| |
| extern int numa_cpu_lookup_table[]; |
| extern cpumask_var_t node_to_cpumask_map[]; |
| #ifdef CONFIG_MEMORY_HOTPLUG |
| extern unsigned long max_pfn; |
| u64 memory_hotplug_max(void); |
| #else |
| #define memory_hotplug_max() memblock_end_of_DRAM() |
| #endif |
| |
| #else |
| #define memory_hotplug_max() memblock_end_of_DRAM() |
| #endif /* CONFIG_NUMA */ |
| #ifdef CONFIG_FA_DUMP |
| #define __HAVE_ARCH_RESERVED_KERNEL_PAGES |
| #endif |
| |
| #ifdef CONFIG_MEMORY_HOTPLUG |
| extern int create_section_mapping(unsigned long start, unsigned long end, |
| int nid, pgprot_t prot); |
| #endif |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _ASM_MMZONE_H_ */ |
