diff options
| -rw-r--r-- | arch/mips/mm/init.c | 65 |
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; |