diff options
Diffstat (limited to 'arch/m68k/mm/init_mm.c')
| -rw-r--r-- | arch/m68k/mm/init_mm.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c deleted file mode 100644 index 282f9de..0000000 --- a/arch/m68k/mm/init_mm.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * Contains common initialization routines, specific init code moved - * to motorola.c and sun3mmu.c - */ - -#include <linux/module.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/io.h> -#ifdef CONFIG_ATARI -#include <asm/atari_stram.h> -#endif -#include <asm/sections.h> -#include <asm/tlb.h> - -pg_data_t pg_data_map[MAX_NUMNODES]; -EXPORT_SYMBOL(pg_data_map); - -int m68k_virt_to_node_shift; - -#ifndef CONFIG_SINGLE_MEMORY_CHUNK -pg_data_t *pg_data_table[65]; -EXPORT_SYMBOL(pg_data_table); -#endif - -void __init m68k_setup_node(int node) -{ -#ifndef CONFIG_SINGLE_MEMORY_CHUNK - struct mem_info *info = m68k_memory + node; - int i, end; - - i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); - end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); - for (; i <= end; i++) { - if (pg_data_table[i]) - printk("overlap at %u for chunk %u\n", i, node); - pg_data_table[i] = pg_data_map + node; - } -#endif - pg_data_map[node].bdata = bootmem_node_data + node; - node_set_online(node); -} - - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ - -void *empty_zero_page; -EXPORT_SYMBOL(empty_zero_page); - -extern void init_pointer_table(unsigned long ptable); - -/* References to section boundaries */ - -extern pmd_t *zero_pgtable; - -#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE) -#define VECTORS &vectors[0] -#else -#define VECTORS _ramvec -#endif - -void __init print_memmap(void) -{ -#define UL(x) ((unsigned long) (x)) -#define MLK(b, t) UL(b), UL(t), (UL(t) - UL(b)) >> 10 -#define MLM(b, t) UL(b), UL(t), (UL(t) - UL(b)) >> 20 -#define MLK_ROUNDUP(b, t) b, t, DIV_ROUND_UP(((t) - (b)), 1024) - - pr_notice("Virtual kernel memory layout:\n" - " vector : 0x%08lx - 0x%08lx (%4ld KiB)\n" - " kmap : 0x%08lx - 0x%08lx (%4ld MiB)\n" - " vmalloc : 0x%08lx - 0x%08lx (%4ld MiB)\n" - " lowmem : 0x%08lx - 0x%08lx (%4ld MiB)\n" - " .init : 0x%p" " - 0x%p" " (%4d KiB)\n" - " .text : 0x%p" " - 0x%p" " (%4d KiB)\n" - " .data : 0x%p" " - 0x%p" " (%4d KiB)\n" - " .bss : 0x%p" " - 0x%p" " (%4d KiB)\n", - MLK(VECTORS, VECTORS + 256), - MLM(KMAP_START, KMAP_END), - MLM(VMALLOC_START, VMALLOC_END), - MLM(PAGE_OFFSET, (unsigned long)high_memory), - MLK_ROUNDUP(__init_begin, __init_end), - MLK_ROUNDUP(_stext, _etext), - MLK_ROUNDUP(_sdata, _edata), - MLK_ROUNDUP(__bss_start, __bss_stop)); -} - -void __init mem_init(void) -{ - pg_data_t *pgdat; - int codepages = 0; - int datapages = 0; - int initpages = 0; - int i; - - /* this will put all memory onto the freelists */ - totalram_pages = num_physpages = 0; - for_each_online_pgdat(pgdat) { - num_physpages += pgdat->node_present_pages; - - totalram_pages += free_all_bootmem_node(pgdat); - for (i = 0; i < pgdat->node_spanned_pages; i++) { - struct page *page = pgdat->node_mem_map + i; - char *addr = page_to_virt(page); - - if (!PageReserved(page)) - continue; - if (addr >= _text && - addr < _etext) - codepages++; - else if (addr >= __init_begin && - addr < __init_end) - initpages++; - else - datapages++; - } - } - -#if !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE) - /* insert pointer tables allocated so far into the tablelist */ - init_pointer_table((unsigned long)kernel_pg_dir); - for (i = 0; i < PTRS_PER_PGD; i++) { - if (pgd_present(kernel_pg_dir[i])) - init_pointer_table(__pgd_page(kernel_pg_dir[i])); - } - - /* insert also pointer table that we used to unmap the zero page */ - if (zero_pgtable) - init_pointer_table((unsigned long)zero_pgtable); -#endif - - printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", - nr_free_pages() << (PAGE_SHIFT-10), - totalram_pages << (PAGE_SHIFT-10), - codepages << (PAGE_SHIFT-10), - datapages << (PAGE_SHIFT-10), - initpages << (PAGE_SHIFT-10)); - print_memmap(); -} - -#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++; - } - printk ("Freeing initrd memory: %dk freed\n", pages); -} -#endif |
