cris: remove redundant display of free swap space in show_mem()
[linux-2.6.git] / arch / cris / mm / init.c
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  *
9  */
10
11 #include <linux/init.h>
12 #include <linux/bootmem.h>
13 #include <asm/tlb.h>
14
15 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
16
17 unsigned long empty_zero_page;
18
19 extern char _stext, _edata, _etext; /* From linkerscript */
20 extern char __init_begin, __init_end;
21
22 void 
23 show_mem(void)
24 {
25         int i,free = 0,total = 0,cached = 0, reserved = 0, nonshared = 0;
26         int shared = 0;
27
28         printk("\nMem-info:\n");
29         show_free_areas();
30         i = max_mapnr;
31         while (i-- > 0) {
32                 total++;
33                 if (PageReserved(mem_map+i))
34                         reserved++;
35                 else if (PageSwapCache(mem_map+i))
36                         cached++;
37                 else if (!page_count(mem_map+i))
38                         free++;
39                 else if (page_count(mem_map+i) == 1)
40                         nonshared++;
41                 else
42                         shared += page_count(mem_map+i) - 1;
43         }
44         printk("%d pages of RAM\n",total);
45         printk("%d free pages\n",free);
46         printk("%d reserved pages\n",reserved);
47         printk("%d pages nonshared\n",nonshared);
48         printk("%d pages shared\n",shared);
49         printk("%d pages swap cached\n",cached);
50 }
51
52 void __init
53 mem_init(void)
54 {
55         int codesize, reservedpages, datasize, initsize;
56         unsigned long tmp;
57
58         if(!mem_map)
59                 BUG();
60
61         /* max/min_low_pfn was set by setup.c
62          * now we just copy it to some other necessary places...
63          *
64          * high_memory was also set in setup.c
65          */
66
67         max_mapnr = num_physpages = max_low_pfn - min_low_pfn;
68  
69         /* this will put all memory onto the freelists */
70         totalram_pages = free_all_bootmem();
71
72         reservedpages = 0;
73         for (tmp = 0; tmp < max_mapnr; tmp++) {
74                 /*
75                  * Only count reserved RAM pages
76                  */
77                 if (PageReserved(mem_map + tmp))
78                         reservedpages++;
79         }
80
81         codesize =  (unsigned long) &_etext - (unsigned long) &_stext;
82         datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
83         initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
84         
85         printk(KERN_INFO
86                "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, "
87                "%dk init)\n" ,
88                (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
89                max_mapnr << (PAGE_SHIFT-10),
90                codesize >> 10,
91                reservedpages << (PAGE_SHIFT-10),
92                datasize >> 10,
93                initsize >> 10
94                );
95 }
96
97 /* free the pages occupied by initialization code */
98
99 void 
100 free_initmem(void)
101 {
102         unsigned long addr;
103
104         addr = (unsigned long)(&__init_begin);
105         for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
106                 ClearPageReserved(virt_to_page(addr));
107                 init_page_count(virt_to_page(addr));
108                 free_page(addr);
109                 totalram_pages++;
110         }
111         printk (KERN_INFO "Freeing unused kernel memory: %luk freed\n",
112                 (unsigned long)((&__init_end - &__init_begin) >> 10));
113 }