| /* |
| * 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_ */ |
