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1da177e4 LT |
1 | /* |
2 | * linux/arch/cris/mm/init.c | |
3 | * | |
4 | * Copyright (C) 1995 Linus Torvalds | |
5 | * Copyright (C) 2000,2001 Axis Communications AB | |
6 | * | |
7 | * Authors: Bjorn Wesen (bjornw@axis.com) | |
8 | * | |
1da177e4 LT |
9 | */ |
10 | ||
5a0e3ad6 | 11 | #include <linux/gfp.h> |
1da177e4 LT |
12 | #include <linux/init.h> |
13 | #include <linux/bootmem.h> | |
14 | #include <asm/tlb.h> | |
2e529815 | 15 | #include <asm/sections.h> |
1da177e4 | 16 | |
1da177e4 LT |
17 | unsigned long empty_zero_page; |
18 | ||
1da177e4 LT |
19 | void __init |
20 | mem_init(void) | |
21 | { | |
22 | int codesize, reservedpages, datasize, initsize; | |
23 | unsigned long tmp; | |
24 | ||
59b97760 | 25 | BUG_ON(!mem_map); |
1da177e4 LT |
26 | |
27 | /* max/min_low_pfn was set by setup.c | |
28 | * now we just copy it to some other necessary places... | |
29 | * | |
30 | * high_memory was also set in setup.c | |
31 | */ | |
32 | ||
33 | max_mapnr = num_physpages = max_low_pfn - min_low_pfn; | |
34 | ||
35 | /* this will put all memory onto the freelists */ | |
36 | totalram_pages = free_all_bootmem(); | |
37 | ||
38 | reservedpages = 0; | |
39 | for (tmp = 0; tmp < max_mapnr; tmp++) { | |
40 | /* | |
41 | * Only count reserved RAM pages | |
42 | */ | |
43 | if (PageReserved(mem_map + tmp)) | |
44 | reservedpages++; | |
45 | } | |
46 | ||
47 | codesize = (unsigned long) &_etext - (unsigned long) &_stext; | |
48 | datasize = (unsigned long) &_edata - (unsigned long) &_etext; | |
49 | initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; | |
50 | ||
51 | printk(KERN_INFO | |
52 | "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, " | |
53 | "%dk init)\n" , | |
cc013a88 | 54 | nr_free_pages() << (PAGE_SHIFT-10), |
1da177e4 LT |
55 | max_mapnr << (PAGE_SHIFT-10), |
56 | codesize >> 10, | |
57 | reservedpages << (PAGE_SHIFT-10), | |
58 | datasize >> 10, | |
59 | initsize >> 10 | |
60 | ); | |
61 | } | |
62 | ||
63 | /* free the pages occupied by initialization code */ | |
64 | ||
65 | void | |
66 | free_initmem(void) | |
67 | { | |
2e529815 | 68 | free_initmem_default(0); |
1da177e4 | 69 | } |