Subversion Repositories openrisc_2011-10-31

/*  This file is part of the program psim.

    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>

    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; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    */

#ifndef _VM_H_

#define _VM_H_

typedef struct _vm vm;

typedef struct _vm_data_map vm_data_map;

typedef struct _vm_instruction_map vm_instruction_map;

/* each PowerPC requires two virtual memory maps */

INLINE_VM\

(vm *) vm_create

(core *memory);

INLINE_VM\

(vm_data_map *) vm_create_data_map

(vm *memory);

INLINE_VM\

(vm_instruction_map *) vm_create_instruction_map

(vm *memory);

/* address translation, if the translation is invalid

   these will not return */

INLINE_VM\

(unsigned_word) vm_real_data_addr

(vm_data_map *data_map,

 unsigned_word ea,

 int is_read,

 cpu *processor,

 unsigned_word cia);

INLINE_VM\

(unsigned_word) vm_real_instruction_addr

(vm_instruction_map *instruction_map,

 cpu *processor,

 unsigned_word cia);

/* generic block transfers.  Dependant on the presence of the

   PROCESSOR arg, either returns the number of bytes transfered or (if

   PROCESSOR is non NULL) aborts the simulation */

INLINE_VM\

(int) vm_data_map_read_buffer

(vm_data_map *map,

 void *target,

 unsigned_word addr,

 unsigned len,

 cpu *processor,

 unsigned_word cia);

INLINE_VM\

(int) vm_data_map_write_buffer

(vm_data_map *map,

 const void *source,

 unsigned_word addr,

 unsigned len,

 int violate_read_only_section,

 cpu *processor,

 unsigned_word cia);

/* fetch the next instruction from memory */

INLINE_VM\

(instruction_word) vm_instruction_map_read

(vm_instruction_map *instruction_map,

 cpu *processor,

 unsigned_word cia);

/* read data from memory */

#define DECLARE_VM_DATA_MAP_READ_N(N) \

INLINE_VM\

(unsigned_##N) vm_data_map_read_##N \

(vm_data_map *map, \

 unsigned_word ea, \

 cpu *processor, \

 unsigned_word cia);

DECLARE_VM_DATA_MAP_READ_N(1)

DECLARE_VM_DATA_MAP_READ_N(2)

DECLARE_VM_DATA_MAP_READ_N(4)

DECLARE_VM_DATA_MAP_READ_N(8)

DECLARE_VM_DATA_MAP_READ_N(word)

/* write data to memory */

#define DECLARE_VM_DATA_MAP_WRITE_N(N) \

INLINE_VM\

(void) vm_data_map_write_##N \

(vm_data_map *map, \

 unsigned_word addr, \

 unsigned_##N val, \

 cpu *processor, \

 unsigned_word cia);

DECLARE_VM_DATA_MAP_WRITE_N(1)

DECLARE_VM_DATA_MAP_WRITE_N(2)

DECLARE_VM_DATA_MAP_WRITE_N(4)

DECLARE_VM_DATA_MAP_WRITE_N(8)

DECLARE_VM_DATA_MAP_WRITE_N(word)

/* update vm data structures due to a synchronization point */

INLINE_VM\

(void) vm_synchronize_context

(vm *memory,

 spreg *sprs,

 sreg *srs,

 msreg msr,

 /**/

 cpu *processor,

 unsigned_word cia);

/* update vm data structures due to a TLB operation */

INLINE_VM\

(void) vm_page_tlb_invalidate_entry

(vm *memory,

 unsigned_word ea);

INLINE_VM\

(void) vm_page_tlb_invalidate_all

(vm *memory);

#endif