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Diffstat (limited to '')
| -rw-r--r-- | arch/m32r/mm/init.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c deleted file mode 100644 index 93abc8c3a46e..000000000000 --- a/arch/m32r/mm/init.c +++ /dev/null @@ -1,152 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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> -#include <asm/sections.h> - -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 - -/* - * 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 -void __init zone_sizes_init(void) -{ - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - unsigned long start_pfn; - -#ifdef CONFIG_MMU - { - unsigned long low; - unsigned long max_dma; - - 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); -} -#else /* CONFIG_DISCONTIGMEM */ -extern void 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 */ - zone_sizes_init(); -} - -/*======================================================================* - * mem_init() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void __init mem_init(void) -{ -#ifndef CONFIG_MMU - extern unsigned long memory_end; - - high_memory = (void *)(memory_end & PAGE_MASK); -#else - high_memory = (void *)__va(PFN_PHYS(MAX_LOW_PFN(0))); -#endif /* CONFIG_MMU */ - - /* clear the zero-page */ - memset(empty_zero_page, 0, PAGE_SIZE); - - set_max_mapnr(get_num_physpages()); - free_all_bootmem(); - mem_init_print_info(NULL); -} - -/*======================================================================* - * free_initmem() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void free_initmem(void) -{ - free_initmem_default(-1); -} - -#ifdef CONFIG_BLK_DEV_INITRD -/*======================================================================* - * free_initrd_mem() : - * orig : arch/sh/mm/init.c - *======================================================================*/ -void free_initrd_mem(unsigned long start, unsigned long end) -{ - free_reserved_area((void *)start, (void *)end, -1, "initrd"); -} -#endif |