Linux kernel mirror (for testing)
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linux
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#include <linux/config.h>
11
12/*
13 * Entries defined so far:
14 * - boot param structure itself
15 * - memory map
16 * - initrd (optional)
17 * - command line string
18 * - kernel code & data
19 * - Kernel memory map built from EFI memory map
20 *
21 * More could be added if necessary
22 */
23#define IA64_MAX_RSVD_REGIONS 6
24
25struct rsvd_region {
26 unsigned long start; /* virtual address of beginning of element */
27 unsigned long end; /* virtual address of end of element + 1 */
28};
29
30extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
31extern int num_rsvd_regions;
32
33extern void find_memory (void);
34extern void reserve_memory (void);
35extern void find_initrd (void);
36extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
37extern void efi_memmap_init(unsigned long *, unsigned long *);
38
39/*
40 * For rounding an address to the next IA64_GRANULE_SIZE or order
41 */
42#define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1))
43#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
44#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
45
46#ifdef CONFIG_NUMA
47 extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
48#else
49# define call_pernode_memory(start, len, func) (*func)(start, len, 0)
50#endif
51
52#define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */
53
54#ifdef CONFIG_VIRTUAL_MEM_MAP
55# define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */
56 extern unsigned long vmalloc_end;
57 extern struct page *vmem_map;
58 extern int find_largest_hole (u64 start, u64 end, void *arg);
59 extern int create_mem_map_page_table (u64 start, u64 end, void *arg);
60#endif
61
62#endif /* meminit_h */