Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753708Ab3CXH3h (ORCPT ); Sun, 24 Mar 2013 03:29:37 -0400 Received: from mail-pb0-f49.google.com ([209.85.160.49]:42054 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753668Ab3CXH3c (ORCPT ); Sun, 24 Mar 2013 03:29:32 -0400 From: Jiang Liu To: Andrew Morton , David Rientjes Cc: Jiang Liu , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , Jianguo Wu , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mike Frysinger , Bob Liu , uclinux-dist-devel@blackfin.uclinux.org Subject: [RFC PATCH v2, part4 14/39] mm/blackfin: prepare for removing num_physpages and simplify mem_init() Date: Sun, 24 Mar 2013 15:24:45 +0800 Message-Id: <1364109934-7851-20-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1364109934-7851-1-git-send-email-jiang.liu@huawei.com> References: <1364109934-7851-1-git-send-email-jiang.liu@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2636 Lines: 73 Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Cc: Mike Frysinger Cc: Bob Liu Cc: uclinux-dist-devel@blackfin.uclinux.org Cc: linux-kernel@vger.kernel.org --- arch/blackfin/mm/init.c | 38 ++++++-------------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 1cc8607..e4b6e11 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -90,43 +90,17 @@ 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; + char buf[64]; - 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); + high_memory = (void *)(memory_end & PAGE_MASK); + max_mapnr = MAP_NR(high_memory); + printk(KERN_DEBUG "Kernel managed physical pages: %lu\n", max_mapnr); /* This will put all low memory onto the freelists. */ free_all_bootmem(); - reservedpages = 0; - for (tmp = ARCH_PFN_OFFSET; tmp < max_mapnr; tmp++) - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - freepages = max_mapnr - ARCH_PFN_OFFSET - 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 - - codek = (_etext - _stext) >> 10; - initk = (__init_end - __init_begin) >> 10; - datak = ((_ramstart - _rambase) >> 10) - codek - initk; - - 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 - CONFIG_PHY_RAM_BASE_ADDRESS) >> 10, - initk, codek, datak, DMA_UNCACHED_REGION >> 10, (reservedpages << (PAGE_SHIFT-10))); + snprintf(buf, sizeof(buf) - 1, "%uK DMA", DMA_UNCACHED_REGION >> 10); + mem_init_print_info(buf); } #ifdef CONFIG_BLK_DEV_INITRD -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/