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/**************************************************************
*
* Creation Date: <97/06/21 17:04:48 samuel>
* Time-stamp: <2001/06/21 14:44:51 samuel>
*
* <memory.h>
*
*
*
* Copyright (C) 1997, 1999, 2000, 2001 Samuel Rydh
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation;
*
**************************************************************/
#ifndef _H_MEMORY
#define _H_MEMORY
#include "mmu_mappings.h"
extern void mem_init( void );
extern void mem_cleanup( void );
extern char *map_phys_mem( char *wanted_ptr, ulong phys_ptr, size_t size, int prot );
extern int unmap_mem( char *start, size_t length );
extern char *map_zero( char *wanted_ptr, size_t size );
/* --- MMU memory interface --- */
/* The folowing functions return 0 for RAM, 1 for ROM, <0 if unmapped */
extern int mphys_to_lvptr( ulong mptr, char **ret );
extern int lvptr_to_mphys( char *lvptr, ulong *ret );
extern int verify_lvrange( char *base, size_t len );
extern int verify_mrange( ulong mbase, size_t len );
/* The following MMU-functions below should only be used by the debugger. */
/* The real MMU code is in the kernel */
extern int ea_to_mphys( ulong ea, int context, ulong *mphys, int data_trans );
extern int ea_to_lvptr( ulong ea, int context, char **lvptr, int data_trans );
extern int mphys_is_rom( char *lvptr );
/* ---- extern variables ---- */
extern struct mmu_mapping ram;
extern struct mmu_mapping rom;
extern int translate_ea( ulong mac_ea, int context_ident, int tea_flags, char **ret_lv );
extern int translate_mac_phys( ulong mac_physical_ptr, char **ret_lvptr );
/* ---- from emulation/misc.S ---- */
extern void flush_dcache_range( char *start, char *stop );
extern void flush_icache_range( char *start, char *stop );
#endif
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