diff options
Diffstat (limited to 'arch/m68k/mm/init.c')
-rw-r--r-- | arch/m68k/mm/init.c | 119 |
1 files changed, 78 insertions, 41 deletions
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index ab90213e5c54..f1de19e1dde6 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c | |||
@@ -7,6 +7,7 @@ | |||
7 | * to motorola.c and sun3mmu.c | 7 | * to motorola.c and sun3mmu.c |
8 | */ | 8 | */ |
9 | 9 | ||
10 | #include <linux/module.h> | ||
10 | #include <linux/signal.h> | 11 | #include <linux/signal.h> |
11 | #include <linux/sched.h> | 12 | #include <linux/sched.h> |
12 | #include <linux/mm.h> | 13 | #include <linux/mm.h> |
@@ -31,6 +32,37 @@ | |||
31 | 32 | ||
32 | DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); | 33 | DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); |
33 | 34 | ||
35 | static bootmem_data_t __initdata bootmem_data[MAX_NUMNODES]; | ||
36 | |||
37 | pg_data_t pg_data_map[MAX_NUMNODES]; | ||
38 | EXPORT_SYMBOL(pg_data_map); | ||
39 | |||
40 | int m68k_virt_to_node_shift; | ||
41 | |||
42 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
43 | pg_data_t *pg_data_table[65]; | ||
44 | EXPORT_SYMBOL(pg_data_table); | ||
45 | #endif | ||
46 | |||
47 | void m68k_setup_node(int node) | ||
48 | { | ||
49 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
50 | struct mem_info *info = m68k_memory + node; | ||
51 | int i, end; | ||
52 | |||
53 | i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); | ||
54 | end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); | ||
55 | for (; i <= end; i++) { | ||
56 | if (pg_data_table[i]) | ||
57 | printk("overlap at %u for chunk %u\n", i, node); | ||
58 | pg_data_table[i] = pg_data_map + node; | ||
59 | } | ||
60 | #endif | ||
61 | pg_data_map[node].bdata = bootmem_data + node; | ||
62 | node_set_online(node); | ||
63 | } | ||
64 | |||
65 | |||
34 | /* | 66 | /* |
35 | * ZERO_PAGE is a special page that is used for zero-initialized | 67 | * ZERO_PAGE is a special page that is used for zero-initialized |
36 | * data and COW. | 68 | * data and COW. |
@@ -40,52 +72,51 @@ void *empty_zero_page; | |||
40 | 72 | ||
41 | void show_mem(void) | 73 | void show_mem(void) |
42 | { | 74 | { |
43 | unsigned long i; | 75 | pg_data_t *pgdat; |
44 | int free = 0, total = 0, reserved = 0, shared = 0; | 76 | int free = 0, total = 0, reserved = 0, shared = 0; |
45 | int cached = 0; | 77 | int cached = 0; |
46 | 78 | int i; | |
47 | printk("\nMem-info:\n"); | 79 | |
48 | show_free_areas(); | 80 | printk("\nMem-info:\n"); |
49 | printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); | 81 | show_free_areas(); |
50 | i = max_mapnr; | 82 | printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); |
51 | while (i-- > 0) { | 83 | for_each_online_pgdat(pgdat) { |
52 | total++; | 84 | for (i = 0; i < pgdat->node_spanned_pages; i++) { |
53 | if (PageReserved(mem_map+i)) | 85 | struct page *page = pgdat->node_mem_map + i; |
54 | reserved++; | 86 | total++; |
55 | else if (PageSwapCache(mem_map+i)) | 87 | if (PageReserved(page)) |
56 | cached++; | 88 | reserved++; |
57 | else if (!page_count(mem_map+i)) | 89 | else if (PageSwapCache(page)) |
58 | free++; | 90 | cached++; |
59 | else | 91 | else if (!page_count(page)) |
60 | shared += page_count(mem_map+i) - 1; | 92 | free++; |
61 | } | 93 | else |
62 | printk("%d pages of RAM\n",total); | 94 | shared += page_count(page) - 1; |
63 | printk("%d free pages\n",free); | 95 | } |
64 | printk("%d reserved pages\n",reserved); | 96 | } |
65 | printk("%d pages shared\n",shared); | 97 | printk("%d pages of RAM\n",total); |
66 | printk("%d pages swap cached\n",cached); | 98 | printk("%d free pages\n",free); |
99 | printk("%d reserved pages\n",reserved); | ||
100 | printk("%d pages shared\n",shared); | ||
101 | printk("%d pages swap cached\n",cached); | ||
67 | } | 102 | } |
68 | 103 | ||
69 | extern void init_pointer_table(unsigned long ptable); | 104 | extern void init_pointer_table(unsigned long ptable); |
70 | 105 | ||
71 | /* References to section boundaries */ | 106 | /* References to section boundaries */ |
72 | 107 | ||
73 | extern char _text, _etext, _edata, __bss_start, _end; | 108 | extern char _text[], _etext[]; |
74 | extern char __init_begin, __init_end; | 109 | extern char __init_begin[], __init_end[]; |
75 | 110 | ||
76 | extern pmd_t *zero_pgtable; | 111 | extern pmd_t *zero_pgtable; |
77 | 112 | ||
78 | void __init mem_init(void) | 113 | void __init mem_init(void) |
79 | { | 114 | { |
115 | pg_data_t *pgdat; | ||
80 | int codepages = 0; | 116 | int codepages = 0; |
81 | int datapages = 0; | 117 | int datapages = 0; |
82 | int initpages = 0; | 118 | int initpages = 0; |
83 | unsigned long tmp; | ||
84 | #ifndef CONFIG_SUN3 | ||
85 | int i; | 119 | int i; |
86 | #endif | ||
87 | |||
88 | max_mapnr = num_physpages = (((unsigned long)high_memory - PAGE_OFFSET) >> PAGE_SHIFT); | ||
89 | 120 | ||
90 | #ifdef CONFIG_ATARI | 121 | #ifdef CONFIG_ATARI |
91 | if (MACH_IS_ATARI) | 122 | if (MACH_IS_ATARI) |
@@ -93,19 +124,25 @@ void __init mem_init(void) | |||
93 | #endif | 124 | #endif |
94 | 125 | ||
95 | /* this will put all memory onto the freelists */ | 126 | /* this will put all memory onto the freelists */ |
96 | totalram_pages = free_all_bootmem(); | 127 | totalram_pages = num_physpages = 0; |
97 | 128 | for_each_online_pgdat(pgdat) { | |
98 | for (tmp = PAGE_OFFSET ; tmp < (unsigned long)high_memory; tmp += PAGE_SIZE) { | 129 | num_physpages += pgdat->node_present_pages; |
99 | if (PageReserved(virt_to_page(tmp))) { | 130 | |
100 | if (tmp >= (unsigned long)&_text | 131 | totalram_pages += free_all_bootmem_node(pgdat); |
101 | && tmp < (unsigned long)&_etext) | 132 | for (i = 0; i < pgdat->node_spanned_pages; i++) { |
133 | struct page *page = pgdat->node_mem_map + i; | ||
134 | char *addr = page_to_virt(page); | ||
135 | |||
136 | if (!PageReserved(page)) | ||
137 | continue; | ||
138 | if (addr >= _text && | ||
139 | addr < _etext) | ||
102 | codepages++; | 140 | codepages++; |
103 | else if (tmp >= (unsigned long) &__init_begin | 141 | else if (addr >= __init_begin && |
104 | && tmp < (unsigned long) &__init_end) | 142 | addr < __init_end) |
105 | initpages++; | 143 | initpages++; |
106 | else | 144 | else |
107 | datapages++; | 145 | datapages++; |
108 | continue; | ||
109 | } | 146 | } |
110 | } | 147 | } |
111 | 148 | ||
@@ -124,7 +161,7 @@ void __init mem_init(void) | |||
124 | 161 | ||
125 | printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", | 162 | printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", |
126 | (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), | 163 | (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), |
127 | max_mapnr << (PAGE_SHIFT-10), | 164 | totalram_pages << (PAGE_SHIFT-10), |
128 | codepages << (PAGE_SHIFT-10), | 165 | codepages << (PAGE_SHIFT-10), |
129 | datapages << (PAGE_SHIFT-10), | 166 | datapages << (PAGE_SHIFT-10), |
130 | initpages << (PAGE_SHIFT-10)); | 167 | initpages << (PAGE_SHIFT-10)); |