| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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_NEED_MULTIPLE_NODES |
| 22 | |
| 23 | extern struct pglist_data *node_data[]; |
| 24 | /* |
| 25 | * Return a pointer to the node data for node n. |
| 26 | */ |
| 27 | #define NODE_DATA(nid) (node_data[nid]) |
| 28 | |
| 29 | /* |
| 30 | * Following are specific to this numa platform. |
| 31 | */ |
| 32 | |
| 33 | extern int numa_cpu_lookup_table[]; |
| 34 | extern cpumask_var_t node_to_cpumask_map[]; |
| 35 | #ifdef CONFIG_MEMORY_HOTPLUG |
| 36 | extern unsigned long max_pfn; |
| 37 | u64 memory_hotplug_max(void); |
| 38 | #else |
| 39 | #define memory_hotplug_max() memblock_end_of_DRAM() |
| 40 | #endif |
| 41 | |
| 42 | #else |
| 43 | #define memory_hotplug_max() memblock_end_of_DRAM() |
| 44 | #endif /* CONFIG_NEED_MULTIPLE_NODES */ |
| 45 | #ifdef CONFIG_FA_DUMP |
| 46 | #define __HAVE_ARCH_RESERVED_KERNEL_PAGES |
| 47 | #endif |
| 48 | |
| 49 | #endif /* __KERNEL__ */ |
| 50 | #endif /* _ASM_MMZONE_H_ */ |