diff options
Diffstat (limited to 'include/asm-ia64/meminit.h')
-rw-r--r-- | include/asm-ia64/meminit.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/asm-ia64/meminit.h b/include/asm-ia64/meminit.h new file mode 100644 index 000000000000..1590dc65b30b --- /dev/null +++ b/include/asm-ia64/meminit.h | |||
@@ -0,0 +1,60 @@ | |||
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 | * | ||
20 | * More could be added if necessary | ||
21 | */ | ||
22 | #define IA64_MAX_RSVD_REGIONS 5 | ||
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); | ||
36 | |||
37 | /* | ||
38 | * For rounding an address to the next IA64_GRANULE_SIZE or order | ||
39 | */ | ||
40 | #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) | ||
41 | #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) | ||
42 | #define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) | ||
43 | |||
44 | #ifdef CONFIG_DISCONTIGMEM | ||
45 | extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); | ||
46 | #else | ||
47 | # define call_pernode_memory(start, len, func) (*func)(start, len, 0) | ||
48 | #endif | ||
49 | |||
50 | #define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */ | ||
51 | |||
52 | #ifdef CONFIG_VIRTUAL_MEM_MAP | ||
53 | # define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */ | ||
54 | extern unsigned long vmalloc_end; | ||
55 | extern struct page *vmem_map; | ||
56 | extern int find_largest_hole (u64 start, u64 end, void *arg); | ||
57 | extern int create_mem_map_page_table (u64 start, u64 end, void *arg); | ||
58 | #endif | ||
59 | |||
60 | #endif /* meminit_h */ | ||