diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m32r/mm/init.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/m32r/mm/init.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/ANDROID_3.4.5/arch/m32r/mm/init.c b/ANDROID_3.4.5/arch/m32r/mm/init.c deleted file mode 100644 index 78b660e9..00000000 --- a/ANDROID_3.4.5/arch/m32r/mm/init.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * linux/arch/m32r/mm/init.c - * - * Copyright (c) 2001, 2002 Hitoshi Yamamoto - * - * Some code taken from sh version. - * Copyright (C) 1999 Niibe Yutaka - * Based on linux/arch/i386/mm/init.c: - * Copyright (C) 1995 Linus Torvalds - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/pagemap.h> -#include <linux/bootmem.h> -#include <linux/swap.h> -#include <linux/highmem.h> -#include <linux/bitops.h> -#include <linux/nodemask.h> -#include <linux/pfn.h> -#include <linux/gfp.h> -#include <asm/types.h> -#include <asm/processor.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> -#include <asm/mmu_context.h> -#include <asm/setup.h> -#include <asm/tlb.h> - -/* References to section boundaries */ -extern char _text, _etext, _edata; -extern char __init_begin, __init_end; - -pgd_t swapper_pg_dir[1024]; - -/* - * Cache of MMU context last used. - */ -#ifndef CONFIG_SMP -unsigned long mmu_context_cache_dat; -#else -unsigned long mmu_context_cache_dat[NR_CPUS]; -#endif -static unsigned long hole_pages; - -/* - * function prototype - */ -void __init paging_init(void); -void __init mem_init(void); -void free_initmem(void); -#ifdef CONFIG_BLK_DEV_INITRD -void free_initrd_mem(unsigned long, unsigned long); -#endif - -/* It'd be good if these lines were in the standard header file. */ -#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn) -#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn) - -#ifndef CONFIG_DISCONTIGMEM -unsigned long __init zone_sizes_init(void) -{ - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - unsigned long max_dma; - unsigned long low; - unsigned long start_pfn; - -#ifdef CONFIG_MMU - start_pfn = START_PFN(0); - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - low = MAX_LOW_PFN(0); - - if (low < max_dma){ - zones_size[ZONE_DMA] = low - start_pfn; - zones_size[ZONE_NORMAL] = 0; - } else { - zones_size[ZONE_DMA] = low - start_pfn; - zones_size[ZONE_NORMAL] = low - max_dma; - } -#else - zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT; - zones_size[ZONE_NORMAL] = __MEMORY_SIZE >> PAGE_SHIFT; - start_pfn = __MEMORY_START >> PAGE_SHIFT; -#endif /* CONFIG_MMU */ - - free_area_init_node(0, zones_size, start_pfn, 0); - - return 0; -} -#else /* CONFIG_DISCONTIGMEM */ -extern unsigned long zone_sizes_init(void); -#endif /* CONFIG_DISCONTIGMEM */ - -/*======================================================================* - * paging_init() : sets up the page tables - *======================================================================*/ -void __init paging_init(void) -{ -#ifdef CONFIG_MMU - int i; - pgd_t *pg_dir; - - /* We don't need kernel mapping as hardware support that. */ - pg_dir = swapper_pg_dir; - - for (i = 0 ; i < USER_PTRS_PER_PGD * 2 ; i++) - pgd_val(pg_dir[i]) = 0; -#endif /* CONFIG_MMU */ - hole_pages = zone_sizes_init(); -} - -int __init reservedpages_count(void) -{ - int reservedpages, nid, i; - - reservedpages = 0; - for_each_online_node(nid) { - unsigned long flags; - pgdat_resize_lock(NODE_DATA(nid), &flags); - for (i = 0 ; i < MAX_LOW_PFN(nid) - START_PFN(nid) ; i++) - if (PageReserved(nid_page_nr(nid, i))) - reservedpages++; - pgdat_resize_unlock(NODE_DATA(nid), &flags); - } - - return reservedpages; -} - -/*======================================================================* - * mem_init() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void __init mem_init(void) -{ - int codesize, reservedpages, datasize, initsize; - int nid; -#ifndef CONFIG_MMU - extern unsigned long memory_end; -#endif - - num_physpages = 0; - for_each_online_node(nid) - num_physpages += MAX_LOW_PFN(nid) - START_PFN(nid) + 1; - - num_physpages -= hole_pages; - -#ifndef CONFIG_DISCONTIGMEM - max_mapnr = num_physpages; -#endif /* CONFIG_DISCONTIGMEM */ - -#ifdef CONFIG_MMU - high_memory = (void *)__va(PFN_PHYS(MAX_LOW_PFN(0))); -#else - high_memory = (void *)(memory_end & PAGE_MASK); -#endif /* CONFIG_MMU */ - - /* clear the zero-page */ - memset(empty_zero_page, 0, PAGE_SIZE); - - /* this will put all low memory onto the freelists */ - for_each_online_node(nid) - totalram_pages += free_all_bootmem_node(NODE_DATA(nid)); - - reservedpages = reservedpages_count() - hole_pages; - 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 (%dk kernel code, " - "%dk reserved, %dk data, %dk init)\n", - nr_free_pages() << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10); -} - -/*======================================================================* - * free_initmem() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void free_initmem(void) -{ - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk (KERN_INFO "Freeing unused kernel memory: %dk freed\n", \ - (int)(&__init_end - &__init_begin) >> 10); -} - -#ifdef CONFIG_BLK_DEV_INITRD -/*======================================================================* - * free_initrd_mem() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void free_initrd_mem(unsigned long start, unsigned long end) -{ - unsigned long p; - for (p = start; p < end; p += PAGE_SIZE) { - ClearPageReserved(virt_to_page(p)); - init_page_count(virt_to_page(p)); - free_page(p); - totalram_pages++; - } - printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10); -} -#endif |