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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070010
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
Zou Nan haia79561132006-12-07 09:51:35 -080018 * - crash dumping code reserved region
Tony Luckd8c97d52005-09-08 12:39:59 -070019 * - Kernel memory map built from EFI memory map
Magnus Dammcee87af2007-03-06 02:34:26 -080020 * - ELF core header
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 *
22 * More could be added if necessary
23 */
Magnus Dammcee87af2007-03-06 02:34:26 -080024#define IA64_MAX_RSVD_REGIONS 8
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
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);
Bernhard Wallecb380852007-10-18 23:41:00 -070038extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e);
Zou Nan haia3f5c332007-03-20 13:41:57 -070039extern int find_max_min_low_pfn (unsigned long , unsigned long, void *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Magnus Dammcee87af2007-03-06 02:34:26 -080041extern unsigned long vmcore_find_descriptor_size(unsigned long address);
42extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end);
43
Linus Torvalds1da177e2005-04-16 15:20:36 -070044/*
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
Bob Picco1be7d992005-10-04 15:13:50 -040051#ifdef CONFIG_NUMA
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 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
Bob Picco139b8302007-01-30 02:11:09 -080059extern int register_active_ranges(u64 start, u64 end, void *arg);
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#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);
Bob Piccoe44e41d2006-06-28 12:55:43 -040067 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}
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070074#endif /* meminit_h */