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author | Jiang Liu <liuj97@gmail.com> | 2013-07-03 15:04:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:07:37 -0700 |
commit | 369a9d8523dc7317eccb64b7aee6e9641d84cc8b (patch) | |
tree | 9a7872928fd74bc52e8f49d256ce88ae390532f6 /arch/powerpc/mm | |
parent | 7d2c7747086354f7889e8d577c537f9ad8985230 (diff) | |
download | op-kernel-dev-369a9d8523dc7317eccb64b7aee6e9641d84cc8b.zip op-kernel-dev-369a9d8523dc7317eccb64b7aee6e9641d84cc8b.tar.gz |
mm/ppc: prepare for removing num_physpages and simplify mem_init()
Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r-- | arch/powerpc/mm/mem.c | 56 |
1 files changed, 12 insertions, 44 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 3bcfc0d..49c18b6 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -299,46 +299,27 @@ void __init paging_init(void) void __init mem_init(void) { -#ifdef CONFIG_NEED_MULTIPLE_NODES - int nid; -#endif - pg_data_t *pgdat; - unsigned long i; - struct page *page; - unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize; - #ifdef CONFIG_SWIOTLB swiotlb_init(0); #endif - num_physpages = memblock_phys_mem_size() >> PAGE_SHIFT; high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); #ifdef CONFIG_NEED_MULTIPLE_NODES - for_each_online_node(nid) { - if (NODE_DATA(nid)->node_spanned_pages != 0) { - printk("freeing bootmem node %d\n", nid); - free_all_bootmem_node(NODE_DATA(nid)); - } + { + pg_data_t *pgdat; + + for_each_online_pgdat(pgdat) + if (pgdat->node_spanned_pages != 0) { + printk("freeing bootmem node %d\n", + pgdat->node_id); + free_all_bootmem_node(pgdat); + } } #else max_mapnr = max_pfn; free_all_bootmem(); #endif - for_each_online_pgdat(pgdat) { - for (i = 0; i < pgdat->node_spanned_pages; i++) { - if (!pfn_valid(pgdat->node_start_pfn + i)) - continue; - page = pgdat_page_nr(pgdat, i); - if (PageReserved(page)) - reservedpages++; - } - } - - codesize = (unsigned long)&_sdata - (unsigned long)&_stext; - datasize = (unsigned long)&_edata - (unsigned long)&_sdata; - initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin; - bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start; #ifdef CONFIG_HIGHMEM { @@ -348,13 +329,9 @@ void __init mem_init(void) for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) { phys_addr_t paddr = (phys_addr_t)pfn << PAGE_SHIFT; struct page *page = pfn_to_page(pfn); - if (memblock_is_reserved(paddr)) - continue; - free_highmem_page(page); - reservedpages--; + if (!memblock_is_reserved(paddr)) + free_highmem_page(page); } - printk(KERN_DEBUG "High memory: %luk\n", - totalhigh_pages << (PAGE_SHIFT-10)); } #endif /* CONFIG_HIGHMEM */ @@ -367,16 +344,7 @@ void __init mem_init(void) (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) - 1; #endif - printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, " - "%luk reserved, %luk data, %luk bss, %luk init)\n", - nr_free_pages() << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - bsssize >> 10, - initsize >> 10); - + mem_init_print_info(NULL); #ifdef CONFIG_PPC32 pr_info("Kernel virtual memory layout:\n"); pr_info(" * 0x%08lx..0x%08lx : fixmap\n", FIXADDR_START, FIXADDR_TOP); |