sim/ppc/vm.h

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #ifndef _VM_H_
  23 #define _VM_H_
  24
  25 typedef struct _vm vm;
  26 typedef struct _vm_data_map vm_data_map;
  27 typedef struct _vm_instruction_map vm_instruction_map;
  28
  29
  30 /* each PowerPC requires two virtual memory maps */
  31
  32 INLINE_VM\
  33 (vm *) vm_create
  34 (core *memory);
  35
  36 INLINE_VM\
  37 (vm_data_map *) vm_create_data_map
  38 (vm *memory);
  39
  40 INLINE_VM\
  41 (vm_instruction_map *) vm_create_instruction_map
  42 (vm *memory);
  43
  44
  45 /* address translation, if the translation is invalid
  46    these will not return */
  47
  48 INLINE_VM\
  49 (unsigned_word) vm_real_data_addr
  50 (vm_data_map *data_map,
  51  unsigned_word ea,
  52  int is_read,
  53  cpu *processor,
  54  unsigned_word cia);
  55
  56 INLINE_VM\
  57 (unsigned_word) vm_real_instruction_addr
  58 (vm_instruction_map *instruction_map,
  59  cpu *processor,
  60  unsigned_word cia);
  61
  62
  63 /* generic block transfers.  Dependant on the presence of the
  64    PROCESSOR arg, either returns the number of bytes transfered or (if
  65    PROCESSOR is non NULL) aborts the simulation */
  66
  67 INLINE_VM\
  68 (int) vm_data_map_read_buffer
  69 (vm_data_map *map,
  70  void *target,
  71  unsigned_word addr,
  72  unsigned len,
  73  cpu *processor,
  74  unsigned_word cia);
  75
  76 INLINE_VM\
  77 (int) vm_data_map_write_buffer
  78 (vm_data_map *map,
  79  const void *source,
  80  unsigned_word addr,
  81  unsigned len,
  82  int violate_read_only_section,
  83  cpu *processor,
  84  unsigned_word cia);
  85
  86
  87 /* fetch the next instruction from memory */
  88
  89 INLINE_VM\
  90 (instruction_word) vm_instruction_map_read
  91 (vm_instruction_map *instruction_map,
  92  cpu *processor,
  93  unsigned_word cia);
  94
  95
  96 /* read data from memory */
  97
  98 #define DECLARE_VM_DATA_MAP_READ_N(N) \
  99 INLINE_VM\
 100 (unsigned_##N) vm_data_map_read_##N \
 101 (vm_data_map *map, \
 102  unsigned_word ea, \
 103  cpu *processor, \
 104  unsigned_word cia);
 105
 106 DECLARE_VM_DATA_MAP_READ_N(1)
 107 DECLARE_VM_DATA_MAP_READ_N(2)
 108 DECLARE_VM_DATA_MAP_READ_N(4)
 109 DECLARE_VM_DATA_MAP_READ_N(8)
 110 DECLARE_VM_DATA_MAP_READ_N(word)
 111
 112
 113 /* write data to memory */
 114
 115 #define DECLARE_VM_DATA_MAP_WRITE_N(N) \
 116 INLINE_VM\
 117 (void) vm_data_map_write_##N \
 118 (vm_data_map *map, \
 119  unsigned_word addr, \
 120  unsigned_##N val, \
 121  cpu *processor, \
 122  unsigned_word cia);
 123
 124 DECLARE_VM_DATA_MAP_WRITE_N(1)
 125 DECLARE_VM_DATA_MAP_WRITE_N(2)
 126 DECLARE_VM_DATA_MAP_WRITE_N(4)
 127 DECLARE_VM_DATA_MAP_WRITE_N(8)
 128 DECLARE_VM_DATA_MAP_WRITE_N(word)
 129
 130
 131 /* update vm data structures due to a synchronization point */
 132
 133 INLINE_VM\
 134 (void) vm_synchronize_context
 135 (vm *memory,
 136  spreg *sprs,
 137  sreg *srs,
 138  msreg msr,
 139  /**/
 140  cpu *processor,
 141  unsigned_word cia);
 142
 143
 144 /* update vm data structures due to a TLB operation */
 145
 146 INLINE_VM\
 147 (void) vm_page_tlb_invalidate_entry
 148 (vm *memory,
 149  unsigned_word ea);
 150
 151 INLINE_VM\
 152 (void) vm_page_tlb_invalidate_all
 153 (vm *memory);
 154
 155 #endif