diff options
Diffstat (limited to 'arch/arm/mm/init.c')
| -rw-r--r-- | arch/arm/mm/init.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index f68c93bb1fd..8e1edbc6116 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -148,14 +148,13 @@ static void __init find_limits(struct meminfo *mi, } } -static void __init arm_bootmem_init(struct meminfo *mi, - unsigned long start_pfn, unsigned long end_pfn) +static void __init arm_bootmem_init(unsigned long start_pfn, + unsigned long end_pfn) { struct memblock_region *reg; unsigned int boot_pages; phys_addr_t bitmap; pg_data_t *pgdat; - int i; /* * Allocate the bootmem bitmap page. This must be in a region @@ -173,22 +172,31 @@ static void __init arm_bootmem_init(struct meminfo *mi, pgdat = NODE_DATA(0); init_bootmem_node(pgdat, __phys_to_pfn(bitmap), start_pfn, end_pfn); - for_each_bank(i, mi) { - struct membank *bank = &mi->bank[i]; - if (!bank->highmem) - free_bootmem(bank_phys_start(bank), bank_phys_size(bank)); + /* Free the lowmem regions from memblock into bootmem. */ + for_each_memblock(memory, reg) { + unsigned long start = memblock_region_memory_base_pfn(reg); + unsigned long end = memblock_region_memory_end_pfn(reg); + + if (end >= end_pfn) + end = end_pfn; + if (start >= end) + break; + + free_bootmem(__pfn_to_phys(start), (end - start) << PAGE_SHIFT); } - /* - * Reserve the memblock reserved regions in bootmem. - */ + /* Reserve the lowmem memblock reserved regions in bootmem. */ for_each_memblock(reserved, reg) { - phys_addr_t start = memblock_region_reserved_base_pfn(reg); - phys_addr_t end = memblock_region_reserved_end_pfn(reg); - if (start >= start_pfn && end <= end_pfn) - reserve_bootmem_node(pgdat, __pfn_to_phys(start), - (end - start) << PAGE_SHIFT, - BOOTMEM_DEFAULT); + unsigned long start = memblock_region_reserved_base_pfn(reg); + unsigned long end = memblock_region_reserved_end_pfn(reg); + + if (end >= end_pfn) + end = end_pfn; + if (start >= end) + break; + + reserve_bootmem(__pfn_to_phys(start), + (end - start) << PAGE_SHIFT, BOOTMEM_DEFAULT); } } @@ -316,7 +324,7 @@ void __init bootmem_init(void) find_limits(mi, &min, &max_low, &max_high); - arm_bootmem_init(mi, min, max_low); + arm_bootmem_init(min, max_low); /* * Sparsemem tries to allocate bootmem in memory_present(), |