diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/init.c | 86 |
1 files changed, 57 insertions, 29 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 9b7f0bf26f5..82c4b421798 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -79,7 +79,7 @@ void show_mem(void) show_free_areas(); for_each_online_node(node) { pg_data_t *n = NODE_DATA(node); - struct page *map = n->node_mem_map - n->node_start_pfn; + struct page *map = pgdat_page_nr(n, 0) - n->node_start_pfn; for_each_nodebank (i,mi,node) { struct membank *bank = &mi->bank[i]; @@ -207,10 +207,8 @@ static inline void map_memory_bank(struct membank *bank) #endif } -static unsigned long __init -bootmem_init_node(int node, int initrd_node, struct meminfo *mi) +static unsigned long __init bootmem_init_node(int node, struct meminfo *mi) { - unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; unsigned long start_pfn, end_pfn, boot_pfn; unsigned int boot_pages; pg_data_t *pgdat; @@ -260,6 +258,7 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi) for_each_nodebank(i, mi, node) { struct membank *bank = &mi->bank[i]; free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank)); + memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank)); } /* @@ -268,31 +267,39 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi) reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT, boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT); - /* - * Reserve any special node zero regions. - */ - if (node == 0) - reserve_node_zero(pgdat); + return end_pfn; +} +static void __init bootmem_reserve_initrd(int node) +{ #ifdef CONFIG_BLK_DEV_INITRD - /* - * If the initrd is in this node, reserve its memory. - */ - if (node == initrd_node) { - int res = reserve_bootmem_node(pgdat, phys_initrd_start, - phys_initrd_size, BOOTMEM_EXCLUSIVE); - - if (res == 0) { - initrd_start = __phys_to_virt(phys_initrd_start); - initrd_end = initrd_start + phys_initrd_size; - } else { - printk(KERN_ERR - "INITRD: 0x%08lx+0x%08lx overlaps in-use " - "memory region - disabling initrd\n", - phys_initrd_start, phys_initrd_size); - } + pg_data_t *pgdat = NODE_DATA(node); + int res; + + res = reserve_bootmem_node(pgdat, phys_initrd_start, + phys_initrd_size, BOOTMEM_EXCLUSIVE); + + if (res == 0) { + initrd_start = __phys_to_virt(phys_initrd_start); + initrd_end = initrd_start + phys_initrd_size; + } else { + printk(KERN_ERR + "INITRD: 0x%08lx+0x%08lx overlaps in-use " + "memory region - disabling initrd\n", + phys_initrd_start, phys_initrd_size); } #endif +} + +static void __init bootmem_free_node(int node, struct meminfo *mi) +{ + unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; + unsigned long start_pfn, end_pfn; + pg_data_t *pgdat = NODE_DATA(node); + int i; + + start_pfn = pgdat->bdata->node_min_pfn; + end_pfn = pgdat->bdata->node_low_pfn; /* * initialise the zones within this node. @@ -322,8 +329,6 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi) arch_adjust_zones(node, zone_size, zhole_size); free_area_init_node(node, zone_size, start_pfn, zhole_size); - - return end_pfn; } void __init bootmem_init(struct meminfo *mi) @@ -342,9 +347,19 @@ void __init bootmem_init(struct meminfo *mi) * Run through each node initialising the bootmem allocator. */ for_each_node(node) { - unsigned long end_pfn; + unsigned long end_pfn = bootmem_init_node(node, mi); - end_pfn = bootmem_init_node(node, initrd_node, mi); + /* + * Reserve any special node zero regions. + */ + if (node == 0) + reserve_node_zero(NODE_DATA(node)); + + /* + * If the initrd is in this node, reserve its memory. + */ + if (node == initrd_node) + bootmem_reserve_initrd(node); /* * Remember the highest memory PFN. @@ -353,6 +368,19 @@ void __init bootmem_init(struct meminfo *mi) memend_pfn = end_pfn; } + /* + * sparse_init() needs the bootmem allocator up and running. + */ + sparse_init(); + + /* + * Now free memory in each node - free_area_init_node needs + * the sparse mem_map arrays initialized by sparse_init() + * for memmap_init_zone(), otherwise all PFNs are invalid. + */ + for_each_node(node) + bootmem_free_node(node, mi); + high_memory = __va(memend_pfn << PAGE_SHIFT); /* |