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 * - xen start info if CONFIG_XEN
22 *
23 * More could be added if necessary
24 */
25 #define IA64_MAX_RSVD_REGIONS 9
26
27 struct rsvd_region {
28 unsigned long start; /* virtual address of beginning of element */
29 unsigned long end; /* virtual address of end of element + 1 */
30 };
31
32 extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
33 extern int num_rsvd_regions;
34
35 extern void find_memory (void);
36 extern void reserve_memory (void);
37 extern void find_initrd (void);
38 extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
39 extern int filter_memory (unsigned long start, unsigned long end, void *arg);
40 extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e);
41 extern int find_max_min_low_pfn (unsigned long , unsigned long, void *);
42
43 extern unsigned long vmcore_find_descriptor_size(unsigned long address);
44 extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end);
45
46 /*
47 * For rounding an address to the next IA64_GRANULE_SIZE or order
48 */
49 #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1))
50 #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
51
52 #ifdef CONFIG_NUMA
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
60 extern int register_active_ranges(u64 start, u64 len, int nid);
61
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);
68 extern int vmemmap_find_next_valid_pfn(int, int);
69 #else
vmemmap_find_next_valid_pfn(int node,int i)70 static inline int vmemmap_find_next_valid_pfn(int node, int i)
71 {
72 return i + 1;
73 }
74 #endif
75 #endif /* meminit_h */
76