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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 9
25 
26 struct rsvd_region {
27 	u64 start;	/* virtual address of beginning of element */
28 	u64 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 (u64 start, u64 end, void *arg);
38 extern int filter_memory (u64 start, u64 end, void *arg);
39 extern unsigned long efi_memmap_init(u64 *s, u64 *e);
40 extern int find_max_min_low_pfn (u64, u64, void *);
41 
42 extern unsigned long vmcore_find_descriptor_size(unsigned long address);
43 extern int reserve_elfcorehdr(u64 *start, u64 *end);
44 
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 
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	/* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */
58 
59 extern int register_active_ranges(u64 start, u64 len, int nid);
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
vmemmap_find_next_valid_pfn(int node,int i)69 static inline int vmemmap_find_next_valid_pfn(int node, int i)
70 {
71 	return i + 1;
72 }
73 #endif
74 #endif /* meminit_h */
75