diff options
Diffstat (limited to 'arch/blackfin/mm/init.c')
| -rw-r--r-- | arch/blackfin/mm/init.c | 71 |
1 files changed, 14 insertions, 57 deletions
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index f8435cd36c7..166842de3dc 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -8,6 +8,7 @@ #include <linux/swap.h> #include <linux/bootmem.h> #include <linux/uaccess.h> +#include <linux/export.h> #include <asm/bfin-global.h> #include <asm/pda.h> #include <asm/cplbinit.h> @@ -47,7 +48,7 @@ void __init paging_init(void) unsigned long zones_size[MAX_NR_ZONES] = { [0] = 0, - [ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT, + [ZONE_DMA] = (end_mem - CONFIG_PHY_RAM_BASE_ADDRESS) >> PAGE_SHIFT, [ZONE_NORMAL] = 0, #ifdef CONFIG_HIGHMEM [ZONE_HIGHMEM] = 0, @@ -59,7 +60,8 @@ void __init paging_init(void) pr_debug("free_area_init -> start_mem is %#lx virtual_end is %#lx\n", PAGE_ALIGN(memory_start), end_mem); - free_area_init(zones_size); + free_area_init_node(0, zones_size, + CONFIG_PHY_RAM_BASE_ADDRESS >> PAGE_SHIFT, NULL); } asmlinkage void __init init_pda(void) @@ -74,9 +76,6 @@ asmlinkage void __init init_pda(void) valid pointers to it. */ memset(&cpu_pda[cpu], 0, sizeof(cpu_pda[cpu])); - cpu_pda[0].next = &cpu_pda[1]; - cpu_pda[1].next = &cpu_pda[0]; - #ifdef CONFIG_EXCEPTION_L1_SCRATCH cpu_pda[cpu].ex_stack = (unsigned long *)(L1_SCRATCH_START + \ L1_SCRATCH_LENGTH); @@ -91,63 +90,24 @@ asmlinkage void __init init_pda(void) void __init mem_init(void) { - unsigned int codek = 0, datak = 0, initk = 0; - unsigned int reservedpages = 0, freepages = 0; - unsigned long tmp; - unsigned long start_mem = memory_start; - unsigned long end_mem = memory_end; - - end_mem &= PAGE_MASK; - high_memory = (void *)end_mem; - - start_mem = PAGE_ALIGN(start_mem); - max_mapnr = num_physpages = MAP_NR(high_memory); - printk(KERN_DEBUG "Kernel managed physical pages: %lu\n", num_physpages); - - /* This will put all memory onto the freelists. */ - totalram_pages = free_all_bootmem(); - - reservedpages = 0; - for (tmp = 0; tmp < max_mapnr; tmp++) - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - freepages = max_mapnr - reservedpages; - - /* do not count in kernel image between _rambase and _ramstart */ - reservedpages -= (_ramstart - _rambase) >> PAGE_SHIFT; -#if (defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) && ANOMALY_05000263) - reservedpages += (_ramend - memory_end - DMA_UNCACHED_REGION) >> PAGE_SHIFT; -#endif + char buf[64]; - codek = (_etext - _stext) >> 10; - initk = (__init_end - __init_begin) >> 10; - datak = ((_ramstart - _rambase) >> 10) - codek - initk; + high_memory = (void *)(memory_end & PAGE_MASK); + max_mapnr = MAP_NR(high_memory); + printk(KERN_DEBUG "Kernel managed physical pages: %lu\n", max_mapnr); - printk(KERN_INFO - "Memory available: %luk/%luk RAM, " - "(%uk init code, %uk kernel code, %uk data, %uk dma, %uk reserved)\n", - (unsigned long) freepages << (PAGE_SHIFT-10), _ramend >> 10, - initk, codek, datak, DMA_UNCACHED_REGION >> 10, (reservedpages << (PAGE_SHIFT-10))); -} + /* This will put all low memory onto the freelists. */ + free_all_bootmem(); -static void __init free_init_pages(const char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - /* next to check that the page we free is not a partial page */ - for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); + snprintf(buf, sizeof(buf) - 1, "%uK DMA", DMA_UNCACHED_REGION >> 10); + mem_init_print_info(buf); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { #ifndef CONFIG_MPU - free_init_pages("initrd memory", start, end); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); #endif } #endif @@ -155,10 +115,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) void __init_refok free_initmem(void) { #if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); - + free_initmem_default(-1); if (memory_start == (unsigned long)(&__init_end)) memory_start = (unsigned long)(&__init_begin); #endif |