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 3 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, see <http://www.gnu.org/licenses/>.
  17
  18     */
  19
  20
  21 #ifndef _VM_H_
  22 #define _VM_H_
  23
  24 typedef struct _vm vm;
  25 typedef struct _vm_data_map vm_data_map;
  26 typedef struct _vm_instruction_map vm_instruction_map;
  27
  28
  29 /* each PowerPC requires two virtual memory maps */
  30
  31 INLINE_VM\
  32 (vm *) vm_create
  33 (core *memory);
  34
  35 INLINE_VM\
  36 (vm_data_map *) vm_create_data_map
  37 (vm *memory);
  38
  39 INLINE_VM\
  40 (vm_instruction_map *) vm_create_instruction_map
  41 (vm *memory);
  42
  43
  44 /* address translation, if the translation is invalid
  45    these will not return */
  46
  47 INLINE_VM\
  48 (unsigned_word) vm_real_data_addr
  49 (vm_data_map *data_map,
  50  unsigned_word ea,
  51  int is_read,
  52  cpu *processor,
  53  unsigned_word cia);
  54
  55 INLINE_VM\
  56 (unsigned_word) vm_real_instruction_addr
  57 (vm_instruction_map *instruction_map,
  58  cpu *processor,
  59  unsigned_word cia);
  60
  61
  62 /* generic block transfers.  Dependant on the presence of the
  63    PROCESSOR arg, either returns the number of bytes transfered or (if
  64    PROCESSOR is non NULL) aborts the simulation */
  65
  66 INLINE_VM\
  67 (int) vm_data_map_read_buffer
  68 (vm_data_map *map,
  69  void *target,
  70  unsigned_word addr,
  71  unsigned len,
  72  cpu *processor,
  73  unsigned_word cia);
  74
  75 INLINE_VM\
  76 (int) vm_data_map_write_buffer
  77 (vm_data_map *map,
  78  const void *source,
  79  unsigned_word addr,
  80  unsigned len,
  81  int violate_read_only_section,
  82  cpu *processor,
  83  unsigned_word cia);
  84
  85
  86 /* fetch the next instruction from memory */
  87
  88 INLINE_VM\
  89 (instruction_word) vm_instruction_map_read
  90 (vm_instruction_map *instruction_map,
  91  cpu *processor,
  92  unsigned_word cia);
  93
  94
  95 /* read data from memory */
  96
  97 #define DECLARE_VM_DATA_MAP_READ_N(N) \
  98 INLINE_VM\
  99 (unsigned_##N) vm_data_map_read_##N \
 100 (vm_data_map *map, \
 101  unsigned_word ea, \
 102  cpu *processor, \
 103  unsigned_word cia);
 104
 105 DECLARE_VM_DATA_MAP_READ_N(1)
 106 DECLARE_VM_DATA_MAP_READ_N(2)
 107 DECLARE_VM_DATA_MAP_READ_N(4)
 108 DECLARE_VM_DATA_MAP_READ_N(8)
 109 DECLARE_VM_DATA_MAP_READ_N(word)
 110
 111
 112 /* write data to memory */
 113
 114 #define DECLARE_VM_DATA_MAP_WRITE_N(N) \
 115 INLINE_VM\
 116 (void) vm_data_map_write_##N \
 117 (vm_data_map *map, \
 118  unsigned_word addr, \
 119  unsigned_##N val, \
 120  cpu *processor, \
 121  unsigned_word cia);
 122
 123 DECLARE_VM_DATA_MAP_WRITE_N(1)
 124 DECLARE_VM_DATA_MAP_WRITE_N(2)
 125 DECLARE_VM_DATA_MAP_WRITE_N(4)
 126 DECLARE_VM_DATA_MAP_WRITE_N(8)
 127 DECLARE_VM_DATA_MAP_WRITE_N(word)
 128
 129
 130 /* update vm data structures due to a synchronization point */
 131
 132 INLINE_VM\
 133 (void) vm_synchronize_context
 134 (vm *memory,
 135  spreg *sprs,
 136  sreg *srs,
 137  msreg msr,
 138  /**/
 139  cpu *processor,
 140  unsigned_word cia);
 141
 142
 143 /* update vm data structures due to a TLB operation */
 144
 145 INLINE_VM\
 146 (void) vm_page_tlb_invalidate_entry
 147 (vm *memory,
 148  unsigned_word ea);
 149
 150 INLINE_VM\
 151 (void) vm_page_tlb_invalidate_all
 152 (vm *memory);
 153
 154 #endif