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authorDavid Woodhouse <dwmw2@infradead.org>2006-08-30 23:30:38 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2006-08-30 23:30:38 +0100
commit0a7d5f8ce960e74fa22986bda4af488539796e49 (patch)
treee29ad17808a5c3410518e22dae8dfe94801b59f3 /arch/mips/mm/init.c
parent0165508c80a2b5d5268d9c5dfa9b30c534a33693 (diff)
parentdc709bd190c130b299ac19d596594256265c042a (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/mips/mm/init.c')
-rw-r--r--arch/mips/mm/init.c65
1 files changed, 40 insertions, 25 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 802bdd32aa2..c52497bb102 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -139,10 +139,36 @@ void __init fixrange_init(unsigned long start, unsigned long end,
#ifndef CONFIG_NEED_MULTIPLE_NODES
extern void pagetable_init(void);
+static int __init page_is_ram(unsigned long pagenr)
+{
+ int i;
+
+ for (i = 0; i < boot_mem_map.nr_map; i++) {
+ unsigned long addr, end;
+
+ if (boot_mem_map.map[i].type != BOOT_MEM_RAM)
+ /* not usable memory */
+ continue;
+
+ addr = PFN_UP(boot_mem_map.map[i].addr);
+ end = PFN_DOWN(boot_mem_map.map[i].addr +
+ boot_mem_map.map[i].size);
+
+ if (pagenr >= addr && pagenr < end)
+ return 1;
+ }
+
+ return 0;
+}
+
void __init paging_init(void)
{
- unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
+ unsigned long zones_size[] = { [0 ... MAX_NR_ZONES - 1] = 0 };
unsigned long max_dma, high, low;
+#ifndef CONFIG_FLATMEM
+ unsigned long zholes_size[] = { [0 ... MAX_NR_ZONES - 1] = 0 };
+ unsigned long i, j, pfn;
+#endif
pagetable_init();
@@ -174,29 +200,16 @@ void __init paging_init(void)
zones_size[ZONE_HIGHMEM] = high - low;
#endif
+#ifdef CONFIG_FLATMEM
free_area_init(zones_size);
-}
-
-static inline int page_is_ram(unsigned long pagenr)
-{
- int i;
-
- for (i = 0; i < boot_mem_map.nr_map; i++) {
- unsigned long addr, end;
-
- if (boot_mem_map.map[i].type != BOOT_MEM_RAM)
- /* not usable memory */
- continue;
-
- addr = PFN_UP(boot_mem_map.map[i].addr);
- end = PFN_DOWN(boot_mem_map.map[i].addr +
- boot_mem_map.map[i].size);
-
- if (pagenr >= addr && pagenr < end)
- return 1;
- }
-
- return 0;
+#else
+ pfn = 0;
+ for (i = 0; i < MAX_NR_ZONES; i++)
+ for (j = 0; j < zones_size[i]; j++, pfn++)
+ if (!page_is_ram(pfn))
+ zholes_size[i]++;
+ free_area_init_node(0, NODE_DATA(0), zones_size, 0, zholes_size);
+#endif
}
static struct kcore_list kcore_mem, kcore_vmalloc;
@@ -213,9 +226,9 @@ void __init mem_init(void)
#ifdef CONFIG_DISCONTIGMEM
#error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet"
#endif
- max_mapnr = num_physpages = highend_pfn;
+ max_mapnr = highend_pfn;
#else
- max_mapnr = num_physpages = max_low_pfn;
+ max_mapnr = max_low_pfn;
#endif
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
@@ -229,6 +242,7 @@ void __init mem_init(void)
if (PageReserved(pfn_to_page(tmp)))
reservedpages++;
}
+ num_physpages = ram;
#ifdef CONFIG_HIGHMEM
for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
@@ -247,6 +261,7 @@ void __init mem_init(void)
totalhigh_pages++;
}
totalram_pages += totalhigh_pages;
+ num_physpages += totalhigh_pages;
#endif
codesize = (unsigned long) &_etext - (unsigned long) &_text;