1 #ifndef meminit_h 2 #define meminit_h 3 4 /* 5 * This file is subject to the terms and conditions of the GNU General Public 6 * License. See the file "COPYING" in the main directory of this archive 7 * for more details. 8 */ 9 10 11 /* 12 * Entries defined so far: 13 * - boot param structure itself 14 * - memory map 15 * - initrd (optional) 16 * - command line string 17 * - kernel code & data 18 * - crash dumping code reserved region 19 * - Kernel memory map built from EFI memory map 20 * - ELF core header 21 * 22 * More could be added if necessary 23 */ 24 #define IA64_MAX_RSVD_REGIONS 9 25 26 struct rsvd_region { 27 u64 start; /* virtual address of beginning of element */ 28 u64 end; /* virtual address of end of element + 1 */ 29 }; 30 31 extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1]; 32 extern int num_rsvd_regions; 33 34 extern void find_memory (void); 35 extern void reserve_memory (void); 36 extern void find_initrd (void); 37 extern int filter_rsvd_memory (u64 start, u64 end, void *arg); 38 extern int filter_memory (u64 start, u64 end, void *arg); 39 extern unsigned long efi_memmap_init(u64 *s, u64 *e); 40 extern int find_max_min_low_pfn (u64, u64, void *); 41 42 extern unsigned long vmcore_find_descriptor_size(unsigned long address); 43 extern int reserve_elfcorehdr(u64 *start, u64 *end); 44 45 /* 46 * For rounding an address to the next IA64_GRANULE_SIZE or order 47 */ 48 #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) 49 #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) 50 51 #ifdef CONFIG_NUMA 52 extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); 53 #else 54 # define call_pernode_memory(start, len, func) (*func)(start, len, 0) 55 #endif 56 57 #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ 58 59 extern int register_active_ranges(u64 start, u64 len, int nid); 60 61 #ifdef CONFIG_VIRTUAL_MEM_MAP 62 extern unsigned long VMALLOC_END; 63 extern struct page *vmem_map; 64 extern int create_mem_map_page_table(u64 start, u64 end, void *arg); 65 extern int vmemmap_find_next_valid_pfn(int, int); 66 #else 67 static inline int vmemmap_find_next_valid_pfn(int node, int i) 68 { 69 return i + 1; 70 } 71 #endif 72 #endif /* meminit_h */ 73