diff options
Diffstat (limited to 'arch/m68k/mm/init_no.c')
| -rw-r--r-- | arch/m68k/mm/init_no.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/arch/m68k/mm/init_no.c b/arch/m68k/mm/init_no.c deleted file mode 100644 index 688e366..0000000 --- a/arch/m68k/mm/init_no.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * 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) - * - * Based on: - * - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) - * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/init.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/sections.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -void *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) -{ - /* - * Make sure start_mem is page aligned, otherwise bootmem and - * page_alloc get different views of the world. - */ - unsigned long end_mem = memory_end & PAGE_MASK; - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - - empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); - memset(empty_zero_page, 0, PAGE_SIZE); - - /* - * Set up SFC/DFC registers (user data space). - */ - set_fs (USER_DS); - - zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; - free_area_init(zones_size); -} - -void __init mem_init(void) -{ - int codek = 0, datak = 0, initk = 0; - unsigned long tmp; - unsigned long len = _ramend - _rambase; - unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ - unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ - - pr_debug("Mem_init: start=%lx, end=%lx\n", start_mem, end_mem); - - end_mem &= PAGE_MASK; - high_memory = (void *) end_mem; - - start_mem = PAGE_ALIGN(start_mem); - max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT; - - /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); - - codek = (_etext - _stext) >> 10; - datak = (__bss_stop - _sdata) >> 10; - initk = (__init_begin - __init_end) >> 10; - - tmp = nr_free_pages() << PAGE_SHIFT; - printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n", - tmp >> 10, - len >> 10, - codek, - datak - ); -} - - -#ifdef CONFIG_BLK_DEV_INITRD -void 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++; - } - pr_notice("Freeing initrd memory: %luk freed\n", - pages * (PAGE_SIZE / 1024)); -} -#endif - -void free_initmem(void) -{ -#ifdef CONFIG_RAMKERNEL - unsigned long addr; - /* - * The following code should be cool even if these sections - * are not page aligned. - */ - addr = PAGE_ALIGN((unsigned long) __init_begin); - /* next to check that the page we free is not a partial page */ - for (; addr + PAGE_SIZE < ((unsigned long) __init_end); addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - pr_notice("Freeing unused kernel memory: %luk freed (0x%x - 0x%x)\n", - (addr - PAGE_ALIGN((unsigned long) __init_begin)) >> 10, - (int)(PAGE_ALIGN((unsigned long) __init_begin)), - (int)(addr - PAGE_SIZE)); -#endif -} - |