| 878ddf1f |
1 | /** @file\r |
| 2 | I/O Library.\r |
| 3 | \r |
| 4 | Copyright (c) 2006, Intel Corporation<BR>\r |
| 5 | All rights reserved. This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r |
| 8 | http://opensource.org/licenses/bsd-license.php\r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | \r |
| 13 | Module Name: IoLib.c\r |
| 14 | \r |
| 15 | **/\r |
| 16 | \r |
| 17 | /**\r |
| 18 | Reads an 8-bit I/O port.\r |
| 19 | \r |
| 20 | Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.\r |
| 21 | This function must guarantee that all I/O read and write operations are\r |
| 22 | serialized.\r |
| 23 | \r |
| 24 | If 8-bit I/O port operations are not supported, then ASSERT().\r |
| 25 | \r |
| 26 | @param Port The I/O port to read.\r |
| 27 | \r |
| 28 | @return The value read.\r |
| 29 | \r |
| 30 | **/\r |
| 31 | UINT8\r |
| 32 | EFIAPI\r |
| 33 | IoRead8 (\r |
| 34 | IN UINTN Port\r |
| 35 | )\r |
| 36 | {\r |
| 37 | EFI_PEI_SERVICES **PeiServices;\r |
| 38 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 39 | \r |
| 40 | PeiServices = GetPeiServicesTablePointer ();\r |
| 41 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
42 | ASSERT (CpuIo != NULL);\r |
| 43 | \r |
| 44 | return CpuIo->IoRead8 (PeiServices, CpuIo, (UINT64) Port);\r |
| 45 | }\r |
| 46 | \r |
| 47 | /**\r |
| 48 | Writes an 8-bit I/O port.\r |
| 49 | \r |
| 50 | Writes the 8-bit I/O port specified by Port with the value specified by Value\r |
| 51 | and returns Value. This function must guarantee that all I/O read and write\r |
| 52 | operations are serialized.\r |
| 53 | \r |
| 54 | If 8-bit I/O port operations are not supported, then ASSERT().\r |
| 55 | \r |
| 56 | @param Port The I/O port to write.\r |
| 57 | @param Value The value to write to the I/O port.\r |
| 58 | \r |
| 59 | @return The value written the I/O port.\r |
| 60 | \r |
| 61 | **/\r |
| 62 | UINT8\r |
| 63 | EFIAPI\r |
| 64 | IoWrite8 (\r |
| 65 | IN UINTN Port,\r |
| 66 | IN UINT8 Value\r |
| 67 | )\r |
| 68 | {\r |
| 69 | EFI_PEI_SERVICES **PeiServices;\r |
| 70 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 71 | \r |
| 72 | PeiServices = GetPeiServicesTablePointer ();\r |
| 73 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
74 | ASSERT (CpuIo != NULL);\r |
| 75 | \r |
| 76 | CpuIo->IoWrite8 (PeiServices, CpuIo, (UINT64) Port, Value);\r |
| 77 | return Value;\r |
| 78 | }\r |
| 79 | \r |
| 80 | /**\r |
| 81 | Reads a 16-bit I/O port.\r |
| 82 | \r |
| 83 | Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.\r |
| 84 | This function must guarantee that all I/O read and write operations are\r |
| 85 | serialized.\r |
| 86 | \r |
| 87 | If 16-bit I/O port operations are not supported, then ASSERT().\r |
| 88 | \r |
| 89 | @param Port The I/O port to read.\r |
| 90 | \r |
| 91 | @return The value read.\r |
| 92 | \r |
| 93 | **/\r |
| 94 | UINT16\r |
| 95 | EFIAPI\r |
| 96 | IoRead16 (\r |
| 97 | IN UINTN Port\r |
| 98 | )\r |
| 99 | {\r |
| 100 | EFI_PEI_SERVICES **PeiServices;\r |
| 101 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 102 | \r |
| 103 | PeiServices = GetPeiServicesTablePointer ();\r |
| 104 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
105 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
106 | //\r |
| 107 | // Make sure Port is aligned on a 16-bit boundary.\r |
| 108 | //\r |
| 109 | ASSERT ((Port & 1) == 0);\r |
| 878ddf1f |
110 | return CpuIo->IoRead16 (PeiServices, CpuIo, (UINT64) Port);\r |
| 111 | }\r |
| 112 | \r |
| 113 | /**\r |
| 114 | Writes a 16-bit I/O port.\r |
| 115 | \r |
| 116 | Writes the 16-bit I/O port specified by Port with the value specified by Value\r |
| 117 | and returns Value. This function must guarantee that all I/O read and write\r |
| 118 | operations are serialized.\r |
| 119 | \r |
| 120 | If 16-bit I/O port operations are not supported, then ASSERT().\r |
| 121 | \r |
| 122 | @param Port The I/O port to write.\r |
| 123 | @param Value The value to write to the I/O port.\r |
| 124 | \r |
| 125 | @return The value written the I/O port.\r |
| 126 | \r |
| 127 | **/\r |
| 128 | UINT16\r |
| 129 | EFIAPI\r |
| 130 | IoWrite16 (\r |
| 131 | IN UINTN Port,\r |
| 132 | IN UINT16 Value\r |
| 133 | )\r |
| 134 | {\r |
| 135 | EFI_PEI_SERVICES **PeiServices;\r |
| 136 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 137 | \r |
| 138 | PeiServices = GetPeiServicesTablePointer ();\r |
| 139 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
140 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
141 | //\r |
| 142 | // Make sure Port is aligned on a 16-bit boundary.\r |
| 143 | //\r |
| 144 | ASSERT ((Port & 1) == 0);\r |
| 878ddf1f |
145 | CpuIo->IoWrite16 (PeiServices, CpuIo, (UINT64) Port, Value);\r |
| 146 | return Value;\r |
| 147 | }\r |
| 148 | \r |
| 149 | /**\r |
| 150 | Reads a 32-bit I/O port.\r |
| 151 | \r |
| 152 | Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.\r |
| 153 | This function must guarantee that all I/O read and write operations are\r |
| 154 | serialized.\r |
| 155 | \r |
| 156 | If 32-bit I/O port operations are not supported, then ASSERT().\r |
| 157 | \r |
| 158 | @param Port The I/O port to read.\r |
| 159 | \r |
| 160 | @return The value read.\r |
| 161 | \r |
| 162 | **/\r |
| 163 | UINT32\r |
| 164 | EFIAPI\r |
| 165 | IoRead32 (\r |
| 166 | IN UINTN Port\r |
| 167 | )\r |
| 168 | {\r |
| 169 | EFI_PEI_SERVICES **PeiServices;\r |
| 170 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 171 | \r |
| 172 | PeiServices = GetPeiServicesTablePointer ();\r |
| 173 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
174 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
175 | //\r |
| 176 | // Make sure Port is aligned on a 32-bit boundary.\r |
| 177 | //\r |
| 178 | ASSERT ((Port & 3) == 0);\r |
| 878ddf1f |
179 | return CpuIo->IoRead32 (PeiServices, CpuIo, (UINT64) Port);\r |
| 180 | }\r |
| 181 | \r |
| 182 | /**\r |
| 183 | Writes a 32-bit I/O port.\r |
| 184 | \r |
| 185 | Writes the 32-bit I/O port specified by Port with the value specified by Value\r |
| 186 | and returns Value. This function must guarantee that all I/O read and write\r |
| 187 | operations are serialized.\r |
| 188 | \r |
| 189 | If 32-bit I/O port operations are not supported, then ASSERT().\r |
| 190 | \r |
| 191 | @param Port The I/O port to write.\r |
| 192 | @param Value The value to write to the I/O port.\r |
| 193 | \r |
| 194 | @return The value written the I/O port.\r |
| 195 | \r |
| 196 | **/\r |
| 197 | UINT32\r |
| 198 | EFIAPI\r |
| 199 | IoWrite32 (\r |
| 200 | IN UINTN Port,\r |
| 201 | IN UINT32 Value\r |
| 202 | )\r |
| 203 | {\r |
| 204 | EFI_PEI_SERVICES **PeiServices;\r |
| 205 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 206 | \r |
| 207 | PeiServices = GetPeiServicesTablePointer ();\r |
| 208 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
209 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
210 | //\r |
| 211 | // Make sure Port is aligned on a 32-bit boundary.\r |
| 212 | //\r |
| 213 | ASSERT ((Port & 3) == 0);\r |
| 878ddf1f |
214 | CpuIo->IoWrite32 (PeiServices, CpuIo, (UINT64) Port, Value);\r |
| 215 | return Value;\r |
| 216 | }\r |
| 217 | \r |
| 218 | /**\r |
| 219 | Reads a 64-bit I/O port.\r |
| 220 | \r |
| 221 | Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.\r |
| 222 | This function must guarantee that all I/O read and write operations are\r |
| 223 | serialized.\r |
| 224 | \r |
| 225 | If 64-bit I/O port operations are not supported, then ASSERT().\r |
| 226 | \r |
| 227 | @param Port The I/O port to read.\r |
| 228 | \r |
| 229 | @return The value read.\r |
| 230 | \r |
| 231 | **/\r |
| 232 | UINT64\r |
| 233 | EFIAPI\r |
| 234 | IoRead64 (\r |
| 235 | IN UINTN Port\r |
| 236 | )\r |
| 237 | {\r |
| 238 | EFI_PEI_SERVICES **PeiServices;\r |
| 239 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 240 | \r |
| 241 | PeiServices = GetPeiServicesTablePointer ();\r |
| 242 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
243 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
244 | //\r |
| 245 | // Make sure Port is aligned on a 64-bit boundary.\r |
| 246 | //\r |
| 247 | ASSERT ((Port & 7) == 0);\r |
| 878ddf1f |
248 | return CpuIo->IoRead64 (PeiServices, CpuIo, (UINT64) Port);\r |
| 249 | }\r |
| 250 | \r |
| 251 | /**\r |
| 252 | Writes a 64-bit I/O port.\r |
| 253 | \r |
| 254 | Writes the 64-bit I/O port specified by Port with the value specified by Value\r |
| 255 | and returns Value. This function must guarantee that all I/O read and write\r |
| 256 | operations are serialized.\r |
| 257 | \r |
| 258 | If 64-bit I/O port operations are not supported, then ASSERT().\r |
| 259 | \r |
| 260 | @param Port The I/O port to write.\r |
| 261 | @param Value The value to write to the I/O port.\r |
| 262 | \r |
| 263 | @return The value written the I/O port.\r |
| 264 | \r |
| 265 | **/\r |
| 266 | UINT64\r |
| 267 | EFIAPI\r |
| 268 | IoWrite64 (\r |
| 269 | IN UINTN Port,\r |
| 270 | IN UINT64 Value\r |
| 271 | )\r |
| 272 | {\r |
| 273 | EFI_PEI_SERVICES **PeiServices;\r |
| 274 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 275 | \r |
| 276 | PeiServices = GetPeiServicesTablePointer ();\r |
| 277 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
278 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
279 | //\r |
| 280 | // Make sure Port is aligned on a 64-bit boundary.\r |
| 281 | //\r |
| 282 | ASSERT ((Port & 7) == 0);\r |
| 878ddf1f |
283 | CpuIo->IoWrite64 (PeiServices, CpuIo, (UINT64) Port, Value);\r |
| 284 | return Value;;\r |
| 285 | }\r |
| 286 | \r |
| 287 | /**\r |
| 288 | Reads an 8-bit MMIO register.\r |
| 289 | \r |
| 290 | Reads the 8-bit MMIO register specified by Address. The 8-bit read value is\r |
| 291 | returned. This function must guarantee that all MMIO read and write\r |
| 292 | operations are serialized.\r |
| 293 | \r |
| 294 | If 8-bit MMIO register operations are not supported, then ASSERT().\r |
| 295 | \r |
| 296 | @param Address The MMIO register to read.\r |
| 297 | \r |
| 298 | @return The value read.\r |
| 299 | \r |
| 300 | **/\r |
| 301 | UINT8\r |
| 302 | EFIAPI\r |
| 303 | MmioRead8 (\r |
| 304 | IN UINTN Address\r |
| 305 | )\r |
| 306 | {\r |
| 307 | EFI_PEI_SERVICES **PeiServices;\r |
| 308 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 309 | \r |
| 310 | PeiServices = GetPeiServicesTablePointer ();\r |
| 311 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
312 | ASSERT (CpuIo != NULL);\r |
| 313 | \r |
| 314 | return CpuIo->MemRead8 (PeiServices, CpuIo, (UINT64) Address);\r |
| 315 | }\r |
| 316 | \r |
| 317 | /**\r |
| 318 | Writes an 8-bit MMIO register.\r |
| 319 | \r |
| 320 | Writes the 8-bit MMIO register specified by Address with the value specified\r |
| 321 | by Value and returns Value. This function must guarantee that all MMIO read\r |
| 322 | and write operations are serialized.\r |
| 323 | \r |
| 324 | If 8-bit MMIO register operations are not supported, then ASSERT().\r |
| 325 | \r |
| 326 | @param Address The MMIO register to write.\r |
| 327 | @param Value The value to write to the MMIO register.\r |
| 328 | \r |
| 329 | **/\r |
| 330 | UINT8\r |
| 331 | EFIAPI\r |
| 332 | MmioWrite8 (\r |
| 333 | IN UINTN Address,\r |
| 334 | IN UINT8 Value\r |
| 335 | )\r |
| 336 | {\r |
| 337 | EFI_PEI_SERVICES **PeiServices;\r |
| 338 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 339 | \r |
| 340 | PeiServices = GetPeiServicesTablePointer ();\r |
| 341 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
342 | ASSERT (CpuIo != NULL);\r |
| 343 | \r |
| 344 | CpuIo->MemWrite8 (PeiServices, CpuIo, (UINT64) Address, Value);\r |
| 345 | return Value;\r |
| 346 | }\r |
| 347 | \r |
| 348 | /**\r |
| 349 | Reads a 16-bit MMIO register.\r |
| 350 | \r |
| 351 | Reads the 16-bit MMIO register specified by Address. The 16-bit read value is\r |
| 352 | returned. This function must guarantee that all MMIO read and write\r |
| 353 | operations are serialized.\r |
| 354 | \r |
| 355 | If 16-bit MMIO register operations are not supported, then ASSERT().\r |
| 356 | \r |
| 357 | @param Address The MMIO register to read.\r |
| 358 | \r |
| 359 | @return The value read.\r |
| 360 | \r |
| 361 | **/\r |
| 362 | UINT16\r |
| 363 | EFIAPI\r |
| 364 | MmioRead16 (\r |
| 365 | IN UINTN Address\r |
| 366 | )\r |
| 367 | {\r |
| 368 | EFI_PEI_SERVICES **PeiServices;\r |
| 369 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 370 | \r |
| 371 | PeiServices = GetPeiServicesTablePointer ();\r |
| 372 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
373 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
374 | //\r |
| 375 | // Make sure Address is aligned on a 16-bit boundary.\r |
| 376 | //\r |
| 377 | ASSERT ((Address & 1) == 0);\r |
| 878ddf1f |
378 | return CpuIo->MemRead16 (PeiServices, CpuIo, (UINT64) Address);\r |
| 379 | \r |
| 380 | }\r |
| 381 | \r |
| 382 | /**\r |
| 383 | Writes a 16-bit MMIO register.\r |
| 384 | \r |
| 385 | Writes the 16-bit MMIO register specified by Address with the value specified\r |
| 386 | by Value and returns Value. This function must guarantee that all MMIO read\r |
| 387 | and write operations are serialized.\r |
| 388 | \r |
| 389 | If 16-bit MMIO register operations are not supported, then ASSERT().\r |
| 390 | \r |
| 391 | @param Address The MMIO register to write.\r |
| 392 | @param Value The value to write to the MMIO register.\r |
| 393 | \r |
| 394 | **/\r |
| 395 | UINT16\r |
| 396 | EFIAPI\r |
| 397 | MmioWrite16 (\r |
| 398 | IN UINTN Address,\r |
| 399 | IN UINT16 Value\r |
| 400 | )\r |
| 401 | {\r |
| 402 | EFI_PEI_SERVICES **PeiServices;\r |
| 403 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 404 | \r |
| 405 | PeiServices = GetPeiServicesTablePointer ();\r |
| 406 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
407 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
408 | //\r |
| 409 | // Make sure Address is aligned on a 16-bit boundary.\r |
| 410 | //\r |
| 411 | ASSERT ((Address & 1) == 0);\r |
| 878ddf1f |
412 | CpuIo->MemWrite16 (PeiServices, CpuIo, (UINT64) Address, Value);\r |
| 413 | return Value;\r |
| 414 | }\r |
| 415 | \r |
| 416 | /**\r |
| 417 | Reads a 32-bit MMIO register.\r |
| 418 | \r |
| 419 | Reads the 32-bit MMIO register specified by Address. The 32-bit read value is\r |
| 420 | returned. This function must guarantee that all MMIO read and write\r |
| 421 | operations are serialized.\r |
| 422 | \r |
| 423 | If 32-bit MMIO register operations are not supported, then ASSERT().\r |
| 424 | \r |
| 425 | @param Address The MMIO register to read.\r |
| 426 | \r |
| 427 | @return The value read.\r |
| 428 | \r |
| 429 | **/\r |
| 430 | UINT32\r |
| 431 | EFIAPI\r |
| 432 | MmioRead32 (\r |
| 433 | IN UINTN Address\r |
| 434 | )\r |
| 435 | {\r |
| 436 | EFI_PEI_SERVICES **PeiServices;\r |
| 437 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 438 | \r |
| 439 | PeiServices = GetPeiServicesTablePointer ();\r |
| 440 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
441 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
442 | //\r |
| 443 | // Make sure Address is aligned on a 32-bit boundary.\r |
| 444 | //\r |
| 445 | ASSERT ((Address & 3) == 0);\r |
| 878ddf1f |
446 | return CpuIo->MemRead32 (PeiServices, CpuIo, (UINT64) Address);\r |
| 447 | \r |
| 448 | }\r |
| 449 | \r |
| 450 | /**\r |
| 451 | Writes a 32-bit MMIO register.\r |
| 452 | \r |
| 453 | Writes the 32-bit MMIO register specified by Address with the value specified\r |
| 454 | by Value and returns Value. This function must guarantee that all MMIO read\r |
| 455 | and write operations are serialized.\r |
| 456 | \r |
| 457 | If 32-bit MMIO register operations are not supported, then ASSERT().\r |
| 458 | \r |
| 459 | @param Address The MMIO register to write.\r |
| 460 | @param Value The value to write to the MMIO register.\r |
| 461 | \r |
| 462 | **/\r |
| 463 | UINT32\r |
| 464 | EFIAPI\r |
| 465 | MmioWrite32 (\r |
| 466 | IN UINTN Address,\r |
| 467 | IN UINT32 Value\r |
| 468 | )\r |
| 469 | {\r |
| 470 | EFI_PEI_SERVICES **PeiServices;\r |
| 471 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 472 | \r |
| 473 | PeiServices = GetPeiServicesTablePointer ();\r |
| 474 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
475 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
476 | //\r |
| 477 | // Make sure Address is aligned on a 32-bit boundary.\r |
| 478 | //\r |
| 479 | ASSERT ((Address & 3) == 0);\r |
| 878ddf1f |
480 | CpuIo->MemWrite32 (PeiServices, CpuIo, (UINT64) Address, Value);\r |
| 481 | return Value;\r |
| 482 | }\r |
| 483 | \r |
| 484 | /**\r |
| 485 | Reads a 64-bit MMIO register.\r |
| 486 | \r |
| 487 | Reads the 64-bit MMIO register specified by Address. The 64-bit read value is\r |
| 488 | returned. This function must guarantee that all MMIO read and write\r |
| 489 | operations are serialized.\r |
| 490 | \r |
| 491 | If 64-bit MMIO register operations are not supported, then ASSERT().\r |
| 492 | \r |
| 493 | @param Address The MMIO register to read.\r |
| 494 | \r |
| 495 | @return The value read.\r |
| 496 | \r |
| 497 | **/\r |
| 498 | UINT64\r |
| 499 | EFIAPI\r |
| 500 | MmioRead64 (\r |
| 501 | IN UINTN Address\r |
| 502 | )\r |
| 503 | {\r |
| 504 | EFI_PEI_SERVICES **PeiServices;\r |
| 505 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 506 | \r |
| 507 | PeiServices = GetPeiServicesTablePointer ();\r |
| 508 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
509 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
510 | //\r |
| 511 | // Make sure Address is aligned on a 64-bit boundary.\r |
| 512 | //\r |
| 513 | ASSERT ((Address & 7) == 0);\r |
| 878ddf1f |
514 | return CpuIo->MemRead64 (PeiServices, CpuIo, (UINT64) Address);\r |
| 515 | \r |
| 516 | }\r |
| 517 | \r |
| 518 | /**\r |
| 519 | Writes a 64-bit MMIO register.\r |
| 520 | \r |
| 521 | Writes the 64-bit MMIO register specified by Address with the value specified\r |
| 522 | by Value and returns Value. This function must guarantee that all MMIO read\r |
| 523 | and write operations are serialized.\r |
| 524 | \r |
| 525 | If 64-bit MMIO register operations are not supported, then ASSERT().\r |
| 526 | \r |
| 527 | @param Address The MMIO register to write.\r |
| 528 | @param Value The value to write to the MMIO register.\r |
| 529 | \r |
| 530 | **/\r |
| 531 | UINT64\r |
| 532 | EFIAPI\r |
| 533 | MmioWrite64 (\r |
| 534 | IN UINTN Address,\r |
| 535 | IN UINT64 Value\r |
| 536 | )\r |
| 537 | {\r |
| 538 | EFI_PEI_SERVICES **PeiServices;\r |
| 539 | EFI_PEI_CPU_IO_PPI *CpuIo;\r |
| 540 | \r |
| 541 | PeiServices = GetPeiServicesTablePointer ();\r |
| 542 | CpuIo = (*PeiServices)->CpuIo;\r |
| 878ddf1f |
543 | ASSERT (CpuIo != NULL);\r |
| 9a462b41 |
544 | //\r |
| 545 | // Make sure Address is aligned on a 64-bit boundary.\r |
| 546 | //\r |
| 547 | ASSERT ((Address & 7) == 0);\r |
| 878ddf1f |
548 | CpuIo->MemWrite64 (PeiServices, CpuIo, (UINT64) Address, Value);\r |
| 549 | return Value;\r |
| 550 | }\r |
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