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 8 25 26struct rsvd_region { 27 unsigned long start; /* virtual address of beginning of element */ 28 unsigned long end; /* virtual address of end of element + 1 */ 29}; 30 31extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1]; 32extern int num_rsvd_regions; 33 34extern void find_memory (void); 35extern void reserve_memory (void); 36extern void find_initrd (void); 37extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg); 38extern void efi_memmap_init(unsigned long *, unsigned long *); 39extern int find_max_min_low_pfn (unsigned long , unsigned long, void *); 40 41extern unsigned long vmcore_find_descriptor_size(unsigned long address); 42extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); 43 44/* 45 * For rounding an address to the next IA64_GRANULE_SIZE or order 46 */ 47#define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) 48#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) 49#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-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 58 59extern int register_active_ranges(u64 start, u64 end, void *arg); 60 61#ifdef CONFIG_VIRTUAL_MEM_MAP 62# define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ 63 extern unsigned long vmalloc_end; 64 extern struct page *vmem_map; 65 extern int find_largest_hole (u64 start, u64 end, void *arg); 66 extern int create_mem_map_page_table (u64 start, u64 end, void *arg); 67 extern int vmemmap_find_next_valid_pfn(int, int); 68#else 69static inline int vmemmap_find_next_valid_pfn(int node, int i) 70{ 71 return i + 1; 72} 73#endif 74#endif /* meminit_h */ 75