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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/frv/mm/init.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/frv/mm/init.c')
-rw-r--r-- | ANDROID_3.4.5/arch/frv/mm/init.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/ANDROID_3.4.5/arch/frv/mm/init.c b/ANDROID_3.4.5/arch/frv/mm/init.c deleted file mode 100644 index a19effcc..00000000 --- a/ANDROID_3.4.5/arch/frv/mm/init.c +++ /dev/null @@ -1,206 +0,0 @@ -/* init.c: memory initialisation for FRV - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.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. - * - * Derived from: - * - linux/arch/m68knommu/mm/init.c - * - Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, Kenneth Albanowski <kjahds@kjahds.com>, - * - Copyright (C) 2000 Lineo, Inc. (www.lineo.com) - * - linux/arch/m68k/mm/init.c - * - Copyright (C) 1995 Hamish Macdonald - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/pagemap.h> -#include <linux/gfp.h> -#include <linux/swap.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/bootmem.h> -#include <linux/highmem.h> -#include <linux/module.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/mmu_context.h> -#include <asm/virtconvert.h> -#include <asm/sections.h> -#include <asm/tlb.h> - -#undef DEBUG - -/* - * BAD_PAGE is the page that is used for page faults when linux - * is out-of-memory. Older versions of linux just did a - * do_exit(), but using this instead means there is less risk - * for a process dying in kernel mode, possibly leaving a inode - * unused etc.. - * - * BAD_PAGETABLE is the accompanying page-table: it is initialized - * to point to BAD_PAGE entries. - * - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -static unsigned long empty_bad_page_table; -static unsigned long empty_bad_page; - -unsigned long empty_zero_page; -EXPORT_SYMBOL(empty_zero_page); - -/*****************************************************************************/ -/* - * paging_init() continues the virtual memory environment setup which - * was begun by the code in arch/head.S. - * The parameters are pointers to where to stick the starting and ending - * addresses of available kernel virtual memory. - */ -void __init paging_init(void) -{ - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - - /* allocate some pages for kernel housekeeping tasks */ - empty_bad_page_table = (unsigned long) alloc_bootmem_pages(PAGE_SIZE); - empty_bad_page = (unsigned long) alloc_bootmem_pages(PAGE_SIZE); - empty_zero_page = (unsigned long) alloc_bootmem_pages(PAGE_SIZE); - - memset((void *) empty_zero_page, 0, PAGE_SIZE); - -#ifdef CONFIG_HIGHMEM - if (num_physpages - num_mappedpages) { - pgd_t *pge; - pud_t *pue; - pmd_t *pme; - - pkmap_page_table = alloc_bootmem_pages(PAGE_SIZE); - - pge = swapper_pg_dir + pgd_index_k(PKMAP_BASE); - pue = pud_offset(pge, PKMAP_BASE); - pme = pmd_offset(pue, PKMAP_BASE); - __set_pmd(pme, virt_to_phys(pkmap_page_table) | _PAGE_TABLE); - } -#endif - - /* distribute the allocatable pages across the various zones and pass them to the allocator - */ - zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn; -#ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = num_physpages - num_mappedpages; -#endif - - free_area_init(zones_size); - -#ifdef CONFIG_MMU - /* initialise init's MMU context */ - init_new_context(&init_task, &init_mm); -#endif - -} /* end paging_init() */ - -/*****************************************************************************/ -/* - * - */ -void __init mem_init(void) -{ - unsigned long npages = (memory_end - memory_start) >> PAGE_SHIFT; - unsigned long tmp; -#ifdef CONFIG_MMU - unsigned long loop, pfn; - int datapages = 0; -#endif - int codek = 0, datak = 0; - - /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); - -#ifdef CONFIG_MMU - for (loop = 0 ; loop < npages ; loop++) - if (PageReserved(&mem_map[loop])) - datapages++; - -#ifdef CONFIG_HIGHMEM - for (pfn = num_physpages - 1; pfn >= num_mappedpages; pfn--) { - struct page *page = &mem_map[pfn]; - - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalram_pages++; - } -#endif - - codek = ((unsigned long) &_etext - (unsigned long) &_stext) >> 10; - datak = datapages << (PAGE_SHIFT - 10); - -#else - codek = (_etext - _stext) >> 10; - datak = 0; //(_ebss - _sdata) >> 10; -#endif - - tmp = nr_free_pages() << PAGE_SHIFT; - printk("Memory available: %luKiB/%luKiB RAM, %luKiB/%luKiB ROM (%dKiB kernel code, %dKiB data)\n", - tmp >> 10, - npages << (PAGE_SHIFT - 10), - (rom_length > 0) ? ((rom_length >> 10) - codek) : 0, - rom_length >> 10, - codek, - datak - ); - -} /* end mem_init() */ - -/*****************************************************************************/ -/* - * free the memory that was only required for initialisation - */ -void free_initmem(void) -{ -#if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL) - unsigned long start, end, addr; - - start = PAGE_ALIGN((unsigned long) &__init_begin); /* round up */ - end = ((unsigned long) &__init_end) & PAGE_MASK; /* round down */ - - /* next to check that the page we free is not a partial page */ - for (addr = start; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - - printk("Freeing unused kernel memory: %ldKiB freed (0x%lx - 0x%lx)\n", - (end - start) >> 10, start, end); -#endif -} /* end free_initmem() */ - -/*****************************************************************************/ -/* - * free the initial ramdisk memory - */ -#ifdef CONFIG_BLK_DEV_INITRD -void __init free_initrd_mem(unsigned long start, unsigned long end) -{ - int pages = 0; - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - pages++; - } - printk("Freeing initrd memory: %dKiB freed\n", (pages * PAGE_SIZE) >> 10); -} /* end free_initrd_mem() */ -#endif |