You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.6 KiB
67 lines
1.6 KiB
/*
|
|
* arch/arm/include/asm/map.h
|
|
*
|
|
* Copyright (C) 1999-2000 Russell King
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Page table mapping constructs and function prototypes
|
|
*/
|
|
#ifndef __ASM_MACH_MAP_H
|
|
#define __ASM_MACH_MAP_H
|
|
|
|
#include <asm/io.h>
|
|
|
|
struct map_desc {
|
|
unsigned long virtual;
|
|
unsigned long pfn;
|
|
unsigned long length;
|
|
unsigned int type;
|
|
};
|
|
|
|
/* types 0-3 are defined in asm/io.h */
|
|
enum {
|
|
MT_UNCACHED = 4,
|
|
MT_CACHECLEAN,
|
|
MT_MINICLEAN,
|
|
MT_LOW_VECTORS,
|
|
MT_HIGH_VECTORS,
|
|
MT_MEMORY_RWX,
|
|
MT_MEMORY_RW,
|
|
MT_ROM,
|
|
MT_MEMORY_RWX_NONCACHED,
|
|
MT_MEMORY_RW_DTCM,
|
|
MT_MEMORY_RWX_ITCM,
|
|
MT_MEMORY_RW_SO,
|
|
MT_MEMORY_DMA_READY,
|
|
};
|
|
|
|
#ifdef CONFIG_MMU
|
|
extern void iotable_init(struct map_desc *, int);
|
|
extern void vm_reserve_area_early(unsigned long addr, unsigned long size,
|
|
void *caller);
|
|
extern void create_mapping_late(struct mm_struct *mm, struct map_desc *md,
|
|
bool ng);
|
|
|
|
#ifdef CONFIG_DEBUG_LL
|
|
extern void debug_ll_addr(unsigned long *paddr, unsigned long *vaddr);
|
|
extern void debug_ll_io_init(void);
|
|
#else
|
|
static inline void debug_ll_io_init(void) {}
|
|
#endif
|
|
|
|
struct mem_type;
|
|
extern const struct mem_type *get_mem_type(unsigned int type);
|
|
/*
|
|
* external interface to remap single page with appropriate type
|
|
*/
|
|
extern int ioremap_page(unsigned long virt, unsigned long phys,
|
|
const struct mem_type *mtype);
|
|
#else
|
|
#define iotable_init(map,num) do { } while (0)
|
|
#define vm_reserve_area_early(a,s,c) do { } while (0)
|
|
#endif
|
|
|
|
#endif
|
|
|