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1da177e4 LT |
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 | ||
1da177e4 LT |
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 | |
d8c97d5f | 18 | * - Kernel memory map built from EFI memory map |
1da177e4 LT |
19 | * |
20 | * More could be added if necessary | |
21 | */ | |
d8c97d5f | 22 | #define IA64_MAX_RSVD_REGIONS 6 |
1da177e4 LT |
23 | |
24 | struct rsvd_region { | |
25 | unsigned long start; /* virtual address of beginning of element */ | |
26 | unsigned long end; /* virtual address of end of element + 1 */ | |
27 | }; | |
28 | ||
29 | extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1]; | |
30 | extern int num_rsvd_regions; | |
31 | ||
32 | extern void find_memory (void); | |
33 | extern void reserve_memory (void); | |
34 | extern void find_initrd (void); | |
35 | extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg); | |
d8c97d5f | 36 | extern void efi_memmap_init(unsigned long *, unsigned long *); |
1da177e4 LT |
37 | |
38 | /* | |
39 | * For rounding an address to the next IA64_GRANULE_SIZE or order | |
40 | */ | |
41 | #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) | |
42 | #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) | |
43 | #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) | |
44 | ||
1be7d993 | 45 | #ifdef CONFIG_NUMA |
1da177e4 LT |
46 | extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); |
47 | #else | |
48 | # define call_pernode_memory(start, len, func) (*func)(start, len, 0) | |
49 | #endif | |
50 | ||
51 | #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ | |
52 | ||
53 | #ifdef CONFIG_VIRTUAL_MEM_MAP | |
54 | # define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ | |
55 | extern unsigned long vmalloc_end; | |
56 | extern struct page *vmem_map; | |
57 | extern int find_largest_hole (u64 start, u64 end, void *arg); | |
05e0caad | 58 | extern int register_active_ranges (u64 start, u64 end, void *arg); |
1da177e4 | 59 | extern int create_mem_map_page_table (u64 start, u64 end, void *arg); |
e44e41d0 BP |
60 | extern int vmemmap_find_next_valid_pfn(int, int); |
61 | #else | |
62 | static inline int vmemmap_find_next_valid_pfn(int node, int i) | |
63 | { | |
64 | return i + 1; | |
65 | } | |
1da177e4 | 66 | #endif |
1da177e4 | 67 | #endif /* meminit_h */ |