mmu.c (69dbdd819599e2f3b77c172e83af512845bca5ad) mmu.c (247055aa21ffef1c49dd64710d5e94c2aee19b58)
1/*
2 * linux/arch/arm/mm/mmu.c
3 *
4 * Copyright (C) 1995-2005 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

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19#include <asm/cputype.h>
20#include <asm/sections.h>
21#include <asm/cachetype.h>
22#include <asm/setup.h>
23#include <asm/sizes.h>
24#include <asm/smp_plat.h>
25#include <asm/tlb.h>
26#include <asm/highmem.h>
1/*
2 * linux/arch/arm/mm/mmu.c
3 *
4 * Copyright (C) 1995-2005 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

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19#include <asm/cputype.h>
20#include <asm/sections.h>
21#include <asm/cachetype.h>
22#include <asm/setup.h>
23#include <asm/sizes.h>
24#include <asm/smp_plat.h>
25#include <asm/tlb.h>
26#include <asm/highmem.h>
27#include <asm/traps.h>
27
28#include <asm/mach/arch.h>
29#include <asm/mach/map.h>
30
31#include "mm.h"
32
33DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
34

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909 * This means you have to be careful how you debug this function, or any
910 * called function. This means you can't use any function or debugging
911 * method which may touch any device, otherwise the kernel _will_ crash.
912 */
913static void __init devicemaps_init(struct machine_desc *mdesc)
914{
915 struct map_desc map;
916 unsigned long addr;
28
29#include <asm/mach/arch.h>
30#include <asm/mach/map.h>
31
32#include "mm.h"
33
34DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
35

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910 * This means you have to be careful how you debug this function, or any
911 * called function. This means you can't use any function or debugging
912 * method which may touch any device, otherwise the kernel _will_ crash.
913 */
914static void __init devicemaps_init(struct machine_desc *mdesc)
915{
916 struct map_desc map;
917 unsigned long addr;
917 void *vectors;
918
919 /*
920 * Allocate the vector page early.
921 */
918
919 /*
920 * Allocate the vector page early.
921 */
922 vectors = early_alloc(PAGE_SIZE);
922 vectors_page = early_alloc(PAGE_SIZE);
923
924 for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
925 pmd_clear(pmd_off_k(addr));
926
927 /*
928 * Map the kernel if it is XIP.
929 * It is always first in the modulearea.
930 */

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954 create_mapping(&map);
955#endif
956
957 /*
958 * Create a mapping for the machine vectors at the high-vectors
959 * location (0xffff0000). If we aren't using high-vectors, also
960 * create a mapping at the low-vectors virtual address.
961 */
923
924 for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
925 pmd_clear(pmd_off_k(addr));
926
927 /*
928 * Map the kernel if it is XIP.
929 * It is always first in the modulearea.
930 */

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954 create_mapping(&map);
955#endif
956
957 /*
958 * Create a mapping for the machine vectors at the high-vectors
959 * location (0xffff0000). If we aren't using high-vectors, also
960 * create a mapping at the low-vectors virtual address.
961 */
962 map.pfn = __phys_to_pfn(virt_to_phys(vectors));
962 map.pfn = __phys_to_pfn(virt_to_phys(vectors_page));
963 map.virtual = 0xffff0000;
964 map.length = PAGE_SIZE;
965 map.type = MT_HIGH_VECTORS;
966 create_mapping(&map);
967
968 if (!vectors_high()) {
969 map.virtual = 0;
970 map.type = MT_LOW_VECTORS;

--- 111 unchanged lines hidden --- 		963 map.virtual = 0xffff0000;
964 map.length = PAGE_SIZE;
965 map.type = MT_HIGH_VECTORS;
966 create_mapping(&map);
967
968 if (!vectors_high()) {
969 map.virtual = 0;
970 map.type = MT_LOW_VECTORS;

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