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Diffstat (limited to 'include/asm-powerpc/mmzone.h')
| -rw-r--r-- | include/asm-powerpc/mmzone.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-powerpc/mmzone.h b/include/asm-powerpc/mmzone.h new file mode 100644 index 00000000000..54958d6cae0 --- /dev/null +++ b/include/asm-powerpc/mmzone.h @@ -0,0 +1,50 @@ +/* + * 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_ + +#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 /* _ASM_MMZONE_H_ */ |