| /* |
| * 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/config.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_NEED_MULTIPLE_NODES |
| |
| 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_t numa_cpumask_lookup_table[]; |
| #ifdef CONFIG_MEMORY_HOTPLUG |
| extern unsigned long max_pfn; |
| #endif |
| |
| /* |
| * Following are macros that each numa implmentation must define. |
| */ |
| |
| #define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) |
| #define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn) |
| |
| #endif /* CONFIG_NEED_MULTIPLE_NODES */ |
| |
| #ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID |
| extern int __init early_pfn_to_nid(unsigned long pfn); |
| #endif |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _ASM_MMZONE_H_ */ |