diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/score/mm/init.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/score/mm/init.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/ANDROID_3.4.5/arch/score/mm/init.c b/ANDROID_3.4.5/arch/score/mm/init.c deleted file mode 100644 index cee6bce1..00000000 --- a/ANDROID_3.4.5/arch/score/mm/init.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * arch/score/mm/init.c - * - * Score Processor version. - * - * Copyright (C) 2009 Sunplus Core Technology Co., Ltd. - * Lennox Wu <lennox.wu@sunplusct.com> - * Chen Liqin <liqin.chen@sunplusct.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/errno.h> -#include <linux/bootmem.h> -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/mman.h> -#include <linux/pagemap.h> -#include <linux/proc_fs.h> -#include <linux/sched.h> -#include <linux/initrd.h> - -#include <asm/sections.h> -#include <asm/tlb.h> - -unsigned long empty_zero_page; -EXPORT_SYMBOL_GPL(empty_zero_page); - -static struct kcore_list kcore_mem, kcore_vmalloc; - -static unsigned long setup_zero_page(void) -{ - struct page *page; - - empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, 0); - if (!empty_zero_page) - panic("Oh boy, that early out of memory?"); - - page = virt_to_page((void *) empty_zero_page); - SetPageReserved(page); - - return 1UL; -} - -#ifndef CONFIG_NEED_MULTIPLE_NODES -int page_is_ram(unsigned long pagenr) -{ - if (pagenr >= min_low_pfn && pagenr < max_low_pfn) - return 1; - else - return 0; -} - -void __init paging_init(void) -{ - unsigned long max_zone_pfns[MAX_NR_ZONES]; - unsigned long lastpfn; - - pagetable_init(); - max_zone_pfns[ZONE_NORMAL] = max_low_pfn; - lastpfn = max_low_pfn; - free_area_init_nodes(max_zone_pfns); -} - -void __init mem_init(void) -{ - unsigned long codesize, reservedpages, datasize, initsize; - unsigned long tmp, ram = 0; - - high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); - totalram_pages += free_all_bootmem(); - totalram_pages -= setup_zero_page(); /* Setup zeroed pages. */ - reservedpages = 0; - - for (tmp = 0; tmp < max_low_pfn; tmp++) - if (page_is_ram(tmp)) { - ram++; - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - } - - num_physpages = ram; - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - ram << (PAGE_SHIFT-10), codesize >> 10, - reservedpages << (PAGE_SHIFT-10), datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); -} -#endif /* !CONFIG_NEED_MULTIPLE_NODES */ - -static void free_init_pages(const char *what, unsigned long begin, unsigned long end) -{ - unsigned long pfn; - - for (pfn = PFN_UP(begin); pfn < PFN_DOWN(end); pfn++) { - struct page *page = pfn_to_page(pfn); - void *addr = phys_to_virt(PFN_PHYS(pfn)); - - ClearPageReserved(page); - init_page_count(page); - memset(addr, POISON_FREE_INITMEM, PAGE_SIZE); - __free_page(page); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - -#ifdef CONFIG_BLK_DEV_INITRD -void free_initrd_mem(unsigned long start, unsigned long end) -{ - free_init_pages("initrd memory", - virt_to_phys((void *) start), - virt_to_phys((void *) end)); -} -#endif - -void __init_refok free_initmem(void) -{ - free_init_pages("unused kernel memory", - __pa(&__init_begin), - __pa(&__init_end)); -} - -unsigned long pgd_current; - -#define __page_aligned(order) __attribute__((__aligned__(PAGE_SIZE<<order))) - -/* - * gcc 3.3 and older have trouble determining that PTRS_PER_PGD and PGD_ORDER - * are constants. So we use the variants from asm-offset.h until that gcc - * will officially be retired. - */ -pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned(PTE_ORDER); -pte_t invalid_pte_table[PTRS_PER_PTE] __page_aligned(PTE_ORDER); |