diff options
Diffstat (limited to 'arch/frv/mm/init.c')
| -rw-r--r-- | arch/frv/mm/init.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c deleted file mode 100644 index cf464100e838..000000000000 --- a/arch/frv/mm/init.c +++ /dev/null @@ -1,144 +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/sched/task.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 - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -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_zero_page = (unsigned long) alloc_bootmem_pages(PAGE_SIZE); - - memset((void *) empty_zero_page, 0, PAGE_SIZE); - -#ifdef CONFIG_HIGHMEM - if (get_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] = get_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 code_size = _etext - _stext; - - /* this will put all low memory onto the freelists */ - free_all_bootmem(); -#if defined(CONFIG_MMU) && defined(CONFIG_HIGHMEM) - { - unsigned long pfn; - - for (pfn = get_num_physpages() - 1; - pfn >= num_mappedpages; pfn--) - free_highmem_page(&mem_map[pfn]); - } -#endif - - mem_init_print_info(NULL); - if (rom_length > 0 && rom_length >= code_size) - printk("Memory available: %luKiB/%luKiB ROM\n", - (rom_length - code_size) >> 10, rom_length >> 10); -} /* end mem_init() */ - -/*****************************************************************************/ -/* - * free the memory that was only required for initialisation - */ -void free_initmem(void) -{ -#if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL) - free_initmem_default(-1); -#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) -{ - free_reserved_area((void *)start, (void *)end, -1, "initrd"); -} /* end free_initrd_mem() */ -#endif |