Commit | Line | Data |
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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 | |
a7956113 | 18 | * - crash dumping code reserved region |
d8c97d5f | 19 | * - Kernel memory map built from EFI memory map |
cee87af2 | 20 | * - ELF core header |
1da177e4 LT |
21 | * |
22 | * More could be added if necessary | |
23 | */ | |
cee87af2 | 24 | #define IA64_MAX_RSVD_REGIONS 8 |
1da177e4 LT |
25 | |
26 | struct 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 | ||
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 (unsigned long start, unsigned long end, void *arg); | |
98075d24 | 38 | extern int filter_memory (unsigned long start, unsigned long end, void *arg); |
cb380853 | 39 | extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e); |
a3f5c338 | 40 | extern int find_max_min_low_pfn (unsigned long , unsigned long, void *); |
1da177e4 | 41 | |
cee87af2 MD |
42 | extern unsigned long vmcore_find_descriptor_size(unsigned long address); |
43 | extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); | |
44 | ||
1da177e4 LT |
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 | #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) | |
51 | ||
1be7d993 | 52 | #ifdef CONFIG_NUMA |
1da177e4 LT |
53 | extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); |
54 | #else | |
55 | # define call_pernode_memory(start, len, func) (*func)(start, len, 0) | |
56 | #endif | |
57 | ||
58 | #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ | |
59 | ||
98075d24 | 60 | extern int register_active_ranges(u64 start, u64 len, int nid); |
139b8304 | 61 | |
1da177e4 LT |
62 | #ifdef CONFIG_VIRTUAL_MEM_MAP |
63 | # define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ | |
64 | extern unsigned long vmalloc_end; | |
65 | extern struct page *vmem_map; | |
66 | extern int find_largest_hole (u64 start, u64 end, void *arg); | |
67 | extern int create_mem_map_page_table (u64 start, u64 end, void *arg); | |
e44e41d0 BP |
68 | extern int vmemmap_find_next_valid_pfn(int, int); |
69 | #else | |
70 | static inline int vmemmap_find_next_valid_pfn(int node, int i) | |
71 | { | |
72 | return i + 1; | |
73 | } | |
1da177e4 | 74 | #endif |
1da177e4 | 75 | #endif /* meminit_h */ |