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- /*
- * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
- * Rewritten for Linux 2.6 by Christoph Hellwig (hch@lst.de) Jan 2004
- */
- #ifndef _ASM_MMZONE_H_
- #define _ASM_MMZONE_H_
- #include <linux/config.h>
- #include <asm/page.h>
- #include <mmzone.h>
- #ifdef CONFIG_DISCONTIGMEM
- #define kvaddr_to_nid(kvaddr) pa_to_nid(__pa(kvaddr))
- #define pfn_to_nid(pfn) pa_to_nid((pfn) << PAGE_SHIFT)
- #define pfn_valid(pfn) \
- ({ \
- unsigned long __pfn = (pfn); \
- int __n = pfn_to_nid(__pfn); \
- ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \
- NODE_DATA(__n)->node_spanned_pages) : 0);\
- })
- /* XXX: FIXME -- wli */
- #define kern_addr_valid(addr) (0)
- #endif /* CONFIG_DISCONTIGMEM */
- #endif /* _ASM_MMZONE_H_ */
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