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Diffstat (limited to 'include/asm-parisc/mmzone.h')
-rw-r--r-- | include/asm-parisc/mmzone.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/include/asm-parisc/mmzone.h b/include/asm-parisc/mmzone.h deleted file mode 100644 index 9608d2cf214..00000000000 --- a/include/asm-parisc/mmzone.h +++ /dev/null @@ -1,73 +0,0 @@ -#ifndef _PARISC_MMZONE_H -#define _PARISC_MMZONE_H - -#ifdef CONFIG_DISCONTIGMEM - -#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */ -extern int npmem_ranges; - -struct node_map_data { - pg_data_t pg_data; -}; - -extern struct node_map_data node_data[]; - -#define NODE_DATA(nid) (&node_data[nid].pg_data) - -#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) -#define node_end_pfn(nid) \ -({ \ - pg_data_t *__pgdat = NODE_DATA(nid); \ - __pgdat->node_start_pfn + __pgdat->node_spanned_pages; \ -}) - -/* We have these possible memory map layouts: - * Astro: 0-3.75, 67.75-68, 4-64 - * zx1: 0-1, 257-260, 4-256 - * Stretch (N-class): 0-2, 4-32, 34-xxx - */ - -/* Since each 1GB can only belong to one region (node), we can create - * an index table for pfn to nid lookup; each entry in pfnnid_map - * represents 1GB, and contains the node that the memory belongs to. */ - -#define PFNNID_SHIFT (30 - PAGE_SHIFT) -#define PFNNID_MAP_MAX 512 /* support 512GB */ -extern unsigned char pfnnid_map[PFNNID_MAP_MAX]; - -#ifndef CONFIG_64BIT -#define pfn_is_io(pfn) ((pfn & (0xf0000000UL >> PAGE_SHIFT)) == (0xf0000000UL >> PAGE_SHIFT)) -#else -/* io can be 0xf0f0f0f0f0xxxxxx or 0xfffffffff0000000 */ -#define pfn_is_io(pfn) ((pfn & (0xf000000000000000UL >> PAGE_SHIFT)) == (0xf000000000000000UL >> PAGE_SHIFT)) -#endif - -static inline int pfn_to_nid(unsigned long pfn) -{ - unsigned int i; - unsigned char r; - - if (unlikely(pfn_is_io(pfn))) - return 0; - - i = pfn >> PFNNID_SHIFT; - BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0])); - r = pfnnid_map[i]; - BUG_ON(r == 0xff); - - return (int)r; -} - -static inline int pfn_valid(int pfn) -{ - int nid = pfn_to_nid(pfn); - - if (nid >= 0) - return (pfn < node_end_pfn(nid)); - return 0; -} - -#else /* !CONFIG_DISCONTIGMEM */ -#define MAX_PHYSMEM_RANGES 1 -#endif -#endif /* _PARISC_MMZONE_H */ |