Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
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 } 489 490 491 static void 492 rmi_pci_bus_space_write_4(void *tag, bus_space_handle_t handle, 493 bus_size_t offset, u_int32_t value) 494 { 495 mips_sync(); 496 *(volatile u_int32_t *)(handle + offset) = bswap32(value); 497 } 498 499 /* 500 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer 501 * provided to bus space described by tag/handle/offset. 502 */ 503 504 505 static void 506 rmi_pci_bus_space_write_multi_1(void *tag, bus_space_handle_t handle, 507 bus_size_t offset, const u_int8_t * addr, size_t count) 508 { 509 mips_sync(); 510 while (count--) { 511 (*(volatile u_int8_t *)(handle + offset)) = *addr; 512 addr++; 513 } 514 } 515 516 static void 517 rmi_pci_bus_space_write_multi_2(void *tag, bus_space_handle_t handle, 518 bus_size_t offset, const u_int16_t * addr, size_t count) 519 { 520 mips_sync(); 521 while (count--) { 522 (*(volatile u_int16_t *)(handle + offset)) = bswap16(*addr); 523 addr++; 524 } 525 } 526 527 static void 528 rmi_pci_bus_space_write_multi_4(void *tag, bus_space_handle_t handle, 529 bus_size_t offset, const u_int32_t * addr, size_t count) 530 { 531 mips_sync(); 532 while (count--) { 533 (*(volatile u_int32_t *)(handle + offset)) = bswap32(*addr); 534 addr++; 535 } 536 } 537 538 /* 539 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 540 * by tag/handle starting at `offset'. 541 */ 542 543 static void 544 rmi_pci_bus_space_set_region_2(void *t, bus_space_handle_t bsh, 545 bus_size_t offset, u_int16_t value, size_t count) 546 { 547 bus_addr_t addr = bsh + offset; 548 549 for (; count != 0; count--, addr += 2) 550 (*(volatile u_int16_t *)(addr)) = value; 551 } 552 553 static void 554 rmi_pci_bus_space_set_region_4(void *t, bus_space_handle_t bsh, 555 bus_size_t offset, u_int32_t value, size_t count) 556 { 557 bus_addr_t addr = bsh + offset; 558 559 for (; count != 0; count--, addr += 4) 560 (*(volatile u_int32_t *)(addr)) = value; 561 } 562 563 564 /* 565 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting 566 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. 567 */ 568 static void 569 rmi_pci_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1, 570 bus_size_t off1, bus_space_handle_t bsh2, 571 bus_size_t off2, size_t count) 572 { 573 TODO(); 574 } 575 576 /* 577 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 578 * described by tag/handle/offset and copy into buffer provided. 579 */ 580 581 u_int8_t 582 rmi_pci_bus_space_read_stream_1(void *t, bus_space_handle_t handle, 583 bus_size_t offset) 584 { 585 586 return *((volatile u_int8_t *)(handle + offset)); 587 } 588 589 590 static u_int16_t 591 rmi_pci_bus_space_read_stream_2(void *t, bus_space_handle_t handle, 592 bus_size_t offset) 593 { 594 return *(volatile u_int16_t *)(handle + offset); 595 } 596 597 598 static u_int32_t 599 rmi_pci_bus_space_read_stream_4(void *t, bus_space_handle_t handle, 600 bus_size_t offset) 601 { 602 return (*(volatile u_int32_t *)(handle + offset)); 603 } 604 605 606 static void 607 rmi_pci_bus_space_read_multi_stream_1(void *tag, bus_space_handle_t handle, 608 bus_size_t offset, u_int8_t * addr, size_t count) 609 { 610 while (count--) { 611 *addr = (*(volatile u_int8_t *)(handle + offset)); 612 addr++; 613 } 614 } 615 616 static void 617 rmi_pci_bus_space_read_multi_stream_2(void *tag, bus_space_handle_t handle, 618 bus_size_t offset, u_int16_t * addr, size_t count) 619 { 620 while (count--) { 621 *addr = (*(volatile u_int16_t *)(handle + offset)); 622 addr++; 623 } 624 } 625 626 static void 627 rmi_pci_bus_space_read_multi_stream_4(void *tag, bus_space_handle_t handle, 628 bus_size_t offset, u_int32_t * addr, size_t count) 629 { 630 while (count--) { 631 *addr = (*(volatile u_int32_t *)(handle + offset)); 632 addr++; 633 } 634 } 635 636 637 638 /* 639 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 640 * described by tag/handle and starting at `offset' and copy into 641 * buffer provided. 642 */ 643 void 644 rmi_pci_bus_space_read_region_1(void *t, bus_space_handle_t bsh, 645 bus_size_t offset, u_int8_t * addr, size_t count) 646 { 647 bus_addr_t baddr = bsh + offset; 648 649 while (count--) { 650 *addr++ = (*(volatile u_int8_t *)(baddr)); 651 baddr += 1; 652 } 653 } 654 655 void 656 rmi_pci_bus_space_read_region_2(void *t, bus_space_handle_t bsh, 657 bus_size_t offset, u_int16_t * addr, size_t count) 658 { 659 bus_addr_t baddr = bsh + offset; 660 661 while (count--) { 662 *addr++ = (*(volatile u_int16_t *)(baddr)); 663 baddr += 2; 664 } 665 } 666 667 void 668 rmi_pci_bus_space_read_region_4(void *t, bus_space_handle_t bsh, 669 bus_size_t offset, u_int32_t * addr, size_t count) 670 { 671 bus_addr_t baddr = bsh + offset; 672 673 while (count--) { 674 *addr++ = (*(volatile u_int32_t *)(baddr)); 675 baddr += 4; 676 } 677 } 678 679 680 void 681 rmi_pci_bus_space_write_stream_1(void *t, bus_space_handle_t handle, 682 bus_size_t offset, u_int8_t value) 683 { 684 mips_sync(); 685 *(volatile u_int8_t *)(handle + offset) = value; 686 } 687 688 static void 689 rmi_pci_bus_space_write_stream_2(void *t, bus_space_handle_t handle, 690 bus_size_t offset, u_int16_t value) 691 { 692 mips_sync(); 693 *(volatile u_int16_t *)(handle + offset) = value; 694 } 695 696 697 static void 698 rmi_pci_bus_space_write_stream_4(void *t, bus_space_handle_t handle, 699 bus_size_t offset, u_int32_t value) 700 { 701 mips_sync(); 702 *(volatile u_int32_t *)(handle + offset) = value; 703 } 704 705 706 static void 707 rmi_pci_bus_space_write_multi_stream_1(void *tag, bus_space_handle_t handle, 708 bus_size_t offset, const u_int8_t * addr, size_t count) 709 { 710 mips_sync(); 711 while (count--) { 712 (*(volatile u_int8_t *)(handle + offset)) = *addr; 713 addr++; 714 } 715 } 716 717 static void 718 rmi_pci_bus_space_write_multi_stream_2(void *tag, bus_space_handle_t handle, 719 bus_size_t offset, const u_int16_t * addr, size_t count) 720 { 721 mips_sync(); 722 while (count--) { 723 (*(volatile u_int16_t *)(handle + offset)) = *addr; 724 addr++; 725 } 726 } 727 728 static void 729 rmi_pci_bus_space_write_multi_stream_4(void *tag, bus_space_handle_t handle, 730 bus_size_t offset, const u_int32_t * addr, size_t count) 731 { 732 mips_sync(); 733 while (count--) { 734 (*(volatile u_int32_t *)(handle + offset)) = *addr; 735 addr++; 736 } 737 } 738 739 void 740 rmi_pci_bus_space_write_region_2(void *t, 741 bus_space_handle_t bsh, 742 bus_size_t offset, 743 const u_int16_t * addr, 744 size_t count) 745 { 746 bus_addr_t baddr = (bus_addr_t) bsh + offset; 747 748 while (count--) { 749 (*(volatile u_int16_t *)(baddr)) = *addr; 750 addr++; 751 baddr += 2; 752 } 753 } 754 755 void 756 rmi_pci_bus_space_write_region_4(void *t, bus_space_handle_t bsh, 757 bus_size_t offset, const u_int32_t * addr, size_t count) 758 { 759 bus_addr_t baddr = bsh + offset; 760 761 while (count--) { 762 (*(volatile u_int32_t *)(baddr)) = *addr; 763 addr++; 764 baddr += 4; 765 } 766 } 767 768 static void 769 rmi_pci_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused, 770 bus_size_t offset __unused, bus_size_t len __unused, int flags) 771 { 772 773 }
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