Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/mips/nlm/bus_space_rmi_pci.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights 5 * reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are 9 * met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * NETLOGIC_BSD */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/bus.h> 38 #include <sys/kernel.h> 39 #include <sys/endian.h> 40 #include <sys/malloc.h> 41 #include <sys/ktr.h> 42 43 #include <vm/vm.h> 44 #include <vm/pmap.h> 45 #include <vm/vm_kern.h> 46 #include <vm/vm_extern.h> 47 48 #include <machine/bus.h> 49 #include <machine/cache.h> 50 51 static int 52 rmi_pci_bus_space_map(void *t, bus_addr_t addr, 53 bus_size_t size, int flags, 54 bus_space_handle_t * bshp); 55 56 static void 57 rmi_pci_bus_space_unmap(void *t, bus_space_handle_t bsh, 58 bus_size_t size); 59 60 static int 61 rmi_pci_bus_space_subregion(void *t, 62 bus_space_handle_t bsh, 63 bus_size_t offset, bus_size_t size, 64 bus_space_handle_t * nbshp); 65 66 static u_int8_t 67 rmi_pci_bus_space_read_1(void *t, 68 bus_space_handle_t handle, 69 bus_size_t offset); 70 71 static u_int16_t 72 rmi_pci_bus_space_read_2(void *t, 73 bus_space_handle_t handle, 74 bus_size_t offset); 75 76 static u_int32_t 77 rmi_pci_bus_space_read_4(void *t, 78 bus_space_handle_t handle, 79 bus_size_t offset); 80 81 static void 82 rmi_pci_bus_space_read_multi_1(void *t, 83 bus_space_handle_t handle, 84 bus_size_t offset, u_int8_t * addr, 85 size_t count); 86 87 static void 88 rmi_pci_bus_space_read_multi_2(void *t, 89 bus_space_handle_t handle, 90 bus_size_t offset, u_int16_t * addr, 91 size_t count); 92 93 static void 94 rmi_pci_bus_space_read_multi_4(void *t, 95 bus_space_handle_t handle, 96 bus_size_t offset, u_int32_t * addr, 97 size_t count); 98 99 static void 100 rmi_pci_bus_space_read_region_1(void *t, 101 bus_space_handle_t bsh, 102 bus_size_t offset, u_int8_t * addr, 103 size_t count); 104 105 static void 106 rmi_pci_bus_space_read_region_2(void *t, 107 bus_space_handle_t bsh, 108 bus_size_t offset, u_int16_t * addr, 109 size_t count); 110 111 static void 112 rmi_pci_bus_space_read_region_4(void *t, 113 bus_space_handle_t bsh, 114 bus_size_t offset, u_int32_t * addr, 115 size_t count); 116 117 static void 118 rmi_pci_bus_space_write_1(void *t, 119 bus_space_handle_t handle, 120 bus_size_t offset, u_int8_t value); 121 122 static void 123 rmi_pci_bus_space_write_2(void *t, 124 bus_space_handle_t handle, 125 bus_size_t offset, u_int16_t value); 126 127 static void 128 rmi_pci_bus_space_write_4(void *t, 129 bus_space_handle_t handle, 130 bus_size_t offset, u_int32_t value); 131 132 static void 133 rmi_pci_bus_space_write_multi_1(void *t, 134 bus_space_handle_t handle, 135 bus_size_t offset, 136 const u_int8_t * addr, 137 size_t count); 138 139 static void 140 rmi_pci_bus_space_write_multi_2(void *t, 141 bus_space_handle_t handle, 142 bus_size_t offset, 143 const u_int16_t * addr, 144 size_t count); 145 146 static void 147 rmi_pci_bus_space_write_multi_4(void *t, 148 bus_space_handle_t handle, 149 bus_size_t offset, 150 const u_int32_t * addr, 151 size_t count); 152 153 static void 154 rmi_pci_bus_space_write_region_2(void *t, 155 bus_space_handle_t bsh, 156 bus_size_t offset, 157 const u_int16_t * addr, 158 size_t count); 159 160 static void 161 rmi_pci_bus_space_write_region_4(void *t, 162 bus_space_handle_t bsh, 163 bus_size_t offset, 164 const u_int32_t * addr, 165 size_t count); 166 167 static void 168 rmi_pci_bus_space_set_region_2(void *t, 169 bus_space_handle_t bsh, 170 bus_size_t offset, u_int16_t value, 171 size_t count); 172 173 static void 174 rmi_pci_bus_space_set_region_4(void *t, 175 bus_space_handle_t bsh, 176 bus_size_t offset, u_int32_t value, 177 size_t count); 178 179 static void 180 rmi_pci_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused, 181 bus_size_t offset __unused, bus_size_t len __unused, int flags); 182 183 static void 184 rmi_pci_bus_space_copy_region_2(void *t, 185 bus_space_handle_t bsh1, 186 bus_size_t off1, 187 bus_space_handle_t bsh2, 188 bus_size_t off2, size_t count); 189 190 u_int8_t 191 rmi_pci_bus_space_read_stream_1(void *t, bus_space_handle_t handle, 192 bus_size_t offset); 193 194 static u_int16_t 195 rmi_pci_bus_space_read_stream_2(void *t, bus_space_handle_t handle, 196 bus_size_t offset); 197 198 static u_int32_t 199 rmi_pci_bus_space_read_stream_4(void *t, bus_space_handle_t handle, 200 bus_size_t offset); 201 202 static void 203 rmi_pci_bus_space_read_multi_stream_1(void *t, 204 bus_space_handle_t handle, 205 bus_size_t offset, u_int8_t * addr, 206 size_t count); 207 208 static void 209 rmi_pci_bus_space_read_multi_stream_2(void *t, 210 bus_space_handle_t handle, 211 bus_size_t offset, u_int16_t * addr, 212 size_t count); 213 214 static void 215 rmi_pci_bus_space_read_multi_stream_4(void *t, 216 bus_space_handle_t handle, 217 bus_size_t offset, u_int32_t * addr, 218 size_t count); 219 220 void 221 rmi_pci_bus_space_write_stream_1(void *t, bus_space_handle_t bsh, 222 bus_size_t offset, u_int8_t value); 223 224 static void 225 rmi_pci_bus_space_write_stream_2(void *t, bus_space_handle_t handle, 226 bus_size_t offset, u_int16_t value); 227 228 static void 229 rmi_pci_bus_space_write_stream_4(void *t, bus_space_handle_t handle, 230 bus_size_t offset, u_int32_t value); 231 232 static void 233 rmi_pci_bus_space_write_multi_stream_1(void *t, 234 bus_space_handle_t handle, 235 bus_size_t offset, 236 const u_int8_t * addr, 237 size_t count); 238 239 static void 240 rmi_pci_bus_space_write_multi_stream_2(void *t, 241 bus_space_handle_t handle, 242 bus_size_t offset, 243 const u_int16_t * addr, 244 size_t count); 245 246 static void 247 rmi_pci_bus_space_write_multi_stream_4(void *t, 248 bus_space_handle_t handle, 249 bus_size_t offset, 250 const u_int32_t * addr, 251 size_t count); 252 253 #define TODO() printf("XLR memory bus space function '%s' unimplemented\n", __func__) 254 255 static struct bus_space local_rmi_pci_bus_space = { 256 /* cookie */ 257 (void *)0, 258 259 /* mapping/unmapping */ 260 rmi_pci_bus_space_map, 261 rmi_pci_bus_space_unmap, 262 rmi_pci_bus_space_subregion, 263 264 /* allocation/deallocation */ 265 NULL, 266 NULL, 267 268 /* barrier */ 269 rmi_pci_bus_space_barrier, 270 271 /* read (single) */ 272 rmi_pci_bus_space_read_1, 273 rmi_pci_bus_space_read_2, 274 rmi_pci_bus_space_read_4, 275 NULL, 276 277 /* read multiple */ 278 rmi_pci_bus_space_read_multi_1, 279 rmi_pci_bus_space_read_multi_2, 280 rmi_pci_bus_space_read_multi_4, 281 NULL, 282 283 /* read region */ 284 rmi_pci_bus_space_read_region_1, 285 rmi_pci_bus_space_read_region_2, 286 rmi_pci_bus_space_read_region_4, 287 NULL, 288 289 /* write (single) */ 290 rmi_pci_bus_space_write_1, 291 rmi_pci_bus_space_write_2, 292 rmi_pci_bus_space_write_4, 293 NULL, 294 295 /* write multiple */ 296 rmi_pci_bus_space_write_multi_1, 297 rmi_pci_bus_space_write_multi_2, 298 rmi_pci_bus_space_write_multi_4, 299 NULL, 300 301 /* write region */ 302 NULL, 303 rmi_pci_bus_space_write_region_2, 304 rmi_pci_bus_space_write_region_4, 305 NULL, 306 307 /* set multiple */ 308 NULL, 309 NULL, 310 NULL, 311 NULL, 312 313 /* set region */ 314 NULL, 315 rmi_pci_bus_space_set_region_2, 316 rmi_pci_bus_space_set_region_4, 317 NULL, 318 319 /* copy */ 320 NULL, 321 rmi_pci_bus_space_copy_region_2, 322 NULL, 323 NULL, 324 325 /* read (single) stream */ 326 rmi_pci_bus_space_read_stream_1, 327 rmi_pci_bus_space_read_stream_2, 328 rmi_pci_bus_space_read_stream_4, 329 NULL, 330 331 /* read multiple stream */ 332 rmi_pci_bus_space_read_multi_stream_1, 333 rmi_pci_bus_space_read_multi_stream_2, 334 rmi_pci_bus_space_read_multi_stream_4, 335 NULL, 336 337 /* read region stream */ 338 rmi_pci_bus_space_read_region_1, 339 rmi_pci_bus_space_read_region_2, 340 rmi_pci_bus_space_read_region_4, 341 NULL, 342 343 /* write (single) stream */ 344 rmi_pci_bus_space_write_stream_1, 345 rmi_pci_bus_space_write_stream_2, 346 rmi_pci_bus_space_write_stream_4, 347 NULL, 348 349 /* write multiple stream */ 350 rmi_pci_bus_space_write_multi_stream_1, 351 rmi_pci_bus_space_write_multi_stream_2, 352 rmi_pci_bus_space_write_multi_stream_4, 353 NULL, 354 355 /* write region stream */ 356 NULL, 357 rmi_pci_bus_space_write_region_2, 358 rmi_pci_bus_space_write_region_4, 359 NULL, 360 }; 361 362 /* generic bus_space tag */ 363 bus_space_tag_t rmi_pci_bus_space = &local_rmi_pci_bus_space; 364 365 /* 366 * Map a region of device bus space into CPU virtual address space. 367 */ 368 static int 369 rmi_pci_bus_space_map(void *t __unused, bus_addr_t addr, 370 bus_size_t size __unused, int flags __unused, 371 bus_space_handle_t * bshp) 372 { 373 *bshp = addr; 374 return (0); 375 } 376 377 /* 378 * Unmap a region of device bus space. 379 */ 380 static void 381 rmi_pci_bus_space_unmap(void *t __unused, bus_space_handle_t bsh __unused, 382 bus_size_t size __unused) 383 { 384 } 385 386 /* 387 * Get a new handle for a subregion of an already-mapped area of bus space. 388 */ 389 390 static int 391 rmi_pci_bus_space_subregion(void *t __unused, bus_space_handle_t bsh, 392 bus_size_t offset, bus_size_t size __unused, 393 bus_space_handle_t * nbshp) 394 { 395 *nbshp = bsh + offset; 396 return (0); 397 } 398 399 /* 400 * Read a 1, 2, 4, or 8 byte quantity from bus space 401 * described by tag/handle/offset. 402 */ 403 404 static u_int8_t 405 rmi_pci_bus_space_read_1(void *tag, bus_space_handle_t handle, 406 bus_size_t offset) 407 { 408 return (u_int8_t) (*(volatile u_int8_t *)(handle + offset)); 409 } 410 411 static u_int16_t 412 rmi_pci_bus_space_read_2(void *tag, bus_space_handle_t handle, 413 bus_size_t offset) 414 { 415 u_int16_t value; 416 417 value = *(volatile u_int16_t *)(handle + offset); 418 return bswap16(value); 419 } 420 421 static u_int32_t 422 rmi_pci_bus_space_read_4(void *tag, bus_space_handle_t handle, 423 bus_size_t offset) 424 { 425 uint32_t value; 426 427 value = *(volatile u_int32_t *)(handle + offset); 428 return bswap32(value); 429 } 430 431 /* 432 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 433 * described by tag/handle/offset and copy into buffer provided. 434 */ 435 static void 436 rmi_pci_bus_space_read_multi_1(void *tag, bus_space_handle_t handle, 437 bus_size_t offset, u_int8_t * addr, size_t count) 438 { 439 while (count--) { 440 *addr = *(volatile u_int8_t *)(handle + offset); 441 addr++; 442 } 443 } 444 445 static void 446 rmi_pci_bus_space_read_multi_2(void *tag, bus_space_handle_t handle, 447 bus_size_t offset, u_int16_t * addr, size_t count) 448 { 449 450 while (count--) { 451 *addr = *(volatile u_int16_t *)(handle + offset); 452 *addr = bswap16(*addr); 453 addr++; 454 } 455 } 456 457 static void 458 rmi_pci_bus_space_read_multi_4(void *tag, bus_space_handle_t handle, 459 bus_size_t offset, u_int32_t * addr, size_t count) 460 { 461 462 while (count--) { 463 *addr = *(volatile u_int32_t *)(handle + offset); 464 *addr = bswap32(*addr); 465 addr++; 466 } 467 } 468 469 /* 470 * Write the 1, 2, 4, or 8 byte value `value' to bus space 471 * described by tag/handle/offset. 472 */ 473 474 static void 475 rmi_pci_bus_space_write_1(void *tag, bus_space_handle_t handle, 476 bus_size_t offset, u_int8_t value) 477 { 478 mips_sync(); 479 *(volatile u_int8_t *)(handle + offset) = value; 480 } 481 482 static void 483 rmi_pci_bus_space_write_2(void *tag, bus_space_handle_t handle, 484 bus_size_t offset, u_int16_t value) 485 { 486 mips_sync(); 487 *(volatile u_int16_t *)(handle + offset) = bswap16(value); 488 } 489 490 static void 491 rmi_pci_bus_space_write_4(void *tag, bus_space_handle_t handle, 492 bus_size_t offset, u_int32_t value) 493 { 494 mips_sync(); 495 *(volatile u_int32_t *)(handle + offset) = bswap32(value); 496 } 497 498 /* 499 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer 500 * provided to bus space described by tag/handle/offset. 501 */ 502 503 static void 504 rmi_pci_bus_space_write_multi_1(void *tag, bus_space_handle_t handle, 505 bus_size_t offset, const u_int8_t * addr, size_t count) 506 { 507 mips_sync(); 508 while (count--) { 509 (*(volatile u_int8_t *)(handle + offset)) = *addr; 510 addr++; 511 } 512 } 513 514 static void 515 rmi_pci_bus_space_write_multi_2(void *tag, bus_space_handle_t handle, 516 bus_size_t offset, const u_int16_t * addr, size_t count) 517 { 518 mips_sync(); 519 while (count--) { 520 (*(volatile u_int16_t *)(handle + offset)) = bswap16(*addr); 521 addr++; 522 } 523 } 524 525 static void 526 rmi_pci_bus_space_write_multi_4(void *tag, bus_space_handle_t handle, 527 bus_size_t offset, const u_int32_t * addr, size_t count) 528 { 529 mips_sync(); 530 while (count--) { 531 (*(volatile u_int32_t *)(handle + offset)) = bswap32(*addr); 532 addr++; 533 } 534 } 535 536 /* 537 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 538 * by tag/handle starting at `offset'. 539 */ 540 541 static void 542 rmi_pci_bus_space_set_region_2(void *t, bus_space_handle_t bsh, 543 bus_size_t offset, u_int16_t value, size_t count) 544 { 545 bus_addr_t addr = bsh + offset; 546 547 for (; count != 0; count--, addr += 2) 548 (*(volatile u_int16_t *)(addr)) = value; 549 } 550 551 static void 552 rmi_pci_bus_space_set_region_4(void *t, bus_space_handle_t bsh, 553 bus_size_t offset, u_int32_t value, size_t count) 554 { 555 bus_addr_t addr = bsh + offset; 556 557 for (; count != 0; count--, addr += 4) 558 (*(volatile u_int32_t *)(addr)) = value; 559 } 560 561 /* 562 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting 563 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. 564 */ 565 static void 566 rmi_pci_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1, 567 bus_size_t off1, bus_space_handle_t bsh2, 568 bus_size_t off2, size_t count) 569 { 570 TODO(); 571 } 572 573 /* 574 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 575 * described by tag/handle/offset and copy into buffer provided. 576 */ 577 578 u_int8_t 579 rmi_pci_bus_space_read_stream_1(void *t, bus_space_handle_t handle, 580 bus_size_t offset) 581 { 582 583 return *((volatile u_int8_t *)(handle + offset)); 584 } 585 586 static u_int16_t 587 rmi_pci_bus_space_read_stream_2(void *t, bus_space_handle_t handle, 588 bus_size_t offset) 589 { 590 return *(volatile u_int16_t *)(handle + offset); 591 } 592 593 static u_int32_t 594 rmi_pci_bus_space_read_stream_4(void *t, bus_space_handle_t handle, 595 bus_size_t offset) 596 { 597 return (*(volatile u_int32_t *)(handle + offset)); 598 } 599 600 static void 601 rmi_pci_bus_space_read_multi_stream_1(void *tag, bus_space_handle_t handle, 602 bus_size_t offset, u_int8_t * addr, size_t count) 603 { 604 while (count--) { 605 *addr = (*(volatile u_int8_t *)(handle + offset)); 606 addr++; 607 } 608 } 609 610 static void 611 rmi_pci_bus_space_read_multi_stream_2(void *tag, bus_space_handle_t handle, 612 bus_size_t offset, u_int16_t * addr, size_t count) 613 { 614 while (count--) { 615 *addr = (*(volatile u_int16_t *)(handle + offset)); 616 addr++; 617 } 618 } 619 620 static void 621 rmi_pci_bus_space_read_multi_stream_4(void *tag, bus_space_handle_t handle, 622 bus_size_t offset, u_int32_t * addr, size_t count) 623 { 624 while (count--) { 625 *addr = (*(volatile u_int32_t *)(handle + offset)); 626 addr++; 627 } 628 } 629 630 /* 631 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 632 * described by tag/handle and starting at `offset' and copy into 633 * buffer provided. 634 */ 635 void 636 rmi_pci_bus_space_read_region_1(void *t, bus_space_handle_t bsh, 637 bus_size_t offset, u_int8_t * addr, size_t count) 638 { 639 bus_addr_t baddr = bsh + offset; 640 641 while (count--) { 642 *addr++ = (*(volatile u_int8_t *)(baddr)); 643 baddr += 1; 644 } 645 } 646 647 void 648 rmi_pci_bus_space_read_region_2(void *t, bus_space_handle_t bsh, 649 bus_size_t offset, u_int16_t * addr, size_t count) 650 { 651 bus_addr_t baddr = bsh + offset; 652 653 while (count--) { 654 *addr++ = (*(volatile u_int16_t *)(baddr)); 655 baddr += 2; 656 } 657 } 658 659 void 660 rmi_pci_bus_space_read_region_4(void *t, bus_space_handle_t bsh, 661 bus_size_t offset, u_int32_t * addr, size_t count) 662 { 663 bus_addr_t baddr = bsh + offset; 664 665 while (count--) { 666 *addr++ = (*(volatile u_int32_t *)(baddr)); 667 baddr += 4; 668 } 669 } 670 671 void 672 rmi_pci_bus_space_write_stream_1(void *t, bus_space_handle_t handle, 673 bus_size_t offset, u_int8_t value) 674 { 675 mips_sync(); 676 *(volatile u_int8_t *)(handle + offset) = value; 677 } 678 679 static void 680 rmi_pci_bus_space_write_stream_2(void *t, bus_space_handle_t handle, 681 bus_size_t offset, u_int16_t value) 682 { 683 mips_sync(); 684 *(volatile u_int16_t *)(handle + offset) = value; 685 } 686 687 static void 688 rmi_pci_bus_space_write_stream_4(void *t, bus_space_handle_t handle, 689 bus_size_t offset, u_int32_t value) 690 { 691 mips_sync(); 692 *(volatile u_int32_t *)(handle + offset) = value; 693 } 694 695 static void 696 rmi_pci_bus_space_write_multi_stream_1(void *tag, bus_space_handle_t handle, 697 bus_size_t offset, const u_int8_t * addr, size_t count) 698 { 699 mips_sync(); 700 while (count--) { 701 (*(volatile u_int8_t *)(handle + offset)) = *addr; 702 addr++; 703 } 704 } 705 706 static void 707 rmi_pci_bus_space_write_multi_stream_2(void *tag, bus_space_handle_t handle, 708 bus_size_t offset, const u_int16_t * addr, size_t count) 709 { 710 mips_sync(); 711 while (count--) { 712 (*(volatile u_int16_t *)(handle + offset)) = *addr; 713 addr++; 714 } 715 } 716 717 static void 718 rmi_pci_bus_space_write_multi_stream_4(void *tag, bus_space_handle_t handle, 719 bus_size_t offset, const u_int32_t * addr, size_t count) 720 { 721 mips_sync(); 722 while (count--) { 723 (*(volatile u_int32_t *)(handle + offset)) = *addr; 724 addr++; 725 } 726 } 727 728 void 729 rmi_pci_bus_space_write_region_2(void *t, 730 bus_space_handle_t bsh, 731 bus_size_t offset, 732 const u_int16_t * addr, 733 size_t count) 734 { 735 bus_addr_t baddr = (bus_addr_t) bsh + offset; 736 737 while (count--) { 738 (*(volatile u_int16_t *)(baddr)) = *addr; 739 addr++; 740 baddr += 2; 741 } 742 } 743 744 void 745 rmi_pci_bus_space_write_region_4(void *t, bus_space_handle_t bsh, 746 bus_size_t offset, const u_int32_t * addr, size_t count) 747 { 748 bus_addr_t baddr = bsh + offset; 749 750 while (count--) { 751 (*(volatile u_int32_t *)(baddr)) = *addr; 752 addr++; 753 baddr += 4; 754 } 755 } 756 757 static void 758 rmi_pci_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused, 759 bus_size_t offset __unused, bus_size_t len __unused, int flags) 760 { 761 762 }
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