1/*- 2 * Copyright (c) 2009 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */ 28 29/*- 30 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 31 * All rights reserved. 32 * 33 * This code is derived from software contributed to The NetBSD Foundation 34 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 35 * NASA Ames Research Center. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 47 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 48 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 49 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 50 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 51 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 52 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 53 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 54 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 56 * POSSIBILITY OF SUCH DAMAGE. 57 */ 58 59/*- 60 * Copyright (c) 1996 Charles M. Hannum. All rights reserved. 61 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 1. Redistributions of source code must retain the above copyright 67 * notice, this list of conditions and the following disclaimer. 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in the 70 * documentation and/or other materials provided with the distribution. 71 * 3. All advertising materials mentioning features or use of this software 72 * must display the following acknowledgement: 73 * This product includes software developed by Christopher G. Demetriou 74 * for the NetBSD Project. 75 * 4. The name of the author may not be used to endorse or promote products 76 * derived from this software without specific prior written permission 77 * 78 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 79 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 80 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 81 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 82 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 83 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 87 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 88 */ 89/* $FreeBSD$ */ 90 91#ifndef _MACHINE_BUS_H_ 92#define _MACHINE_BUS_H_ 93 94#include <machine/_bus.h> 95#include <machine/cpufunc.h> 96 97/* 98 * I/O port reads with ia32 semantics. 99 */ 100#define inb bus_space_read_io_1 101#define inw bus_space_read_io_2 102#define inl bus_space_read_io_4 103 104#define outb bus_space_write_io_1 105#define outw bus_space_write_io_2 106#define outl bus_space_write_io_4 107 108/* 109 * Values for the ia64 bus space tag, not to be used directly by MI code. 110 */ 111#define IA64_BUS_SPACE_IO 0 /* space is i/o space */ 112#define IA64_BUS_SPACE_MEM 1 /* space is mem space */ 113 114#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ 115#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ 116 117#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF 118#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF 119#define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFF 120#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF 121#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF 122#define BUS_SPACE_MAXADDR 0xFFFFFFFFFFFFFFFF 123 124#define BUS_SPACE_UNRESTRICTED (~0) 125 126 127/* 128 * Map and unmap a region of device bus space into CPU virtual address space. 129 */ 130int 131bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t, int, 132 bus_space_handle_t *); 133 134void 135bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t size); 136 137/* 138 * Get a new handle for a subregion of an already-mapped area of bus space. 139 */ 140static __inline int 141bus_space_subregion(bus_space_tag_t bst, bus_space_handle_t bsh, 142 bus_size_t ofs, bus_size_t size __unused, bus_space_handle_t *nbshp) 143{ 144 *nbshp = bsh + ofs; 145 return (0); 146} 147 148 149/* 150 * Allocate a region of memory that is accessible to devices in bus space. 151 */ 152int 153bus_space_alloc(bus_space_tag_t bst, bus_addr_t rstart, bus_addr_t rend, 154 bus_size_t size, bus_size_t align, bus_size_t boundary, int flags, 155 bus_addr_t *addrp, bus_space_handle_t *bshp); 156 157 158/* 159 * Free a region of bus space accessible memory. 160 */ 161void 162bus_space_free(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t size); 163 164 165/* 166 * Bus read/write barrier method. 167 */ 168static __inline void 169bus_space_barrier(bus_space_tag_t bst __unused, bus_space_handle_t bsh __unused, 170 bus_size_t ofs __unused, bus_size_t size __unused, int flags __unused) 171{ 172 ia64_mf_a(); 173 ia64_mf(); 174} 175 176 177/* 178 * Read 1 unit of data from bus space described by the tag, handle and ofs 179 * tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 180 * data is returned. 181 */ 182uint8_t bus_space_read_io_1(u_long); 183uint16_t bus_space_read_io_2(u_long); 184uint32_t bus_space_read_io_4(u_long); 185uint64_t bus_space_read_io_8(u_long); 186 187static __inline uint8_t 188bus_space_read_1(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs) 189{ 190 uint8_t val; 191 192 val = (__predict_false(bst == IA64_BUS_SPACE_IO)) 193 ? bus_space_read_io_1(bsh + ofs) 194 : ia64_ld1((void *)(bsh + ofs)); 195 return (val); 196} 197 198static __inline uint16_t 199bus_space_read_2(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs) 200{ 201 uint16_t val; 202 203 val = (__predict_false(bst == IA64_BUS_SPACE_IO)) 204 ? bus_space_read_io_2(bsh + ofs) 205 : ia64_ld2((void *)(bsh + ofs)); 206 return (val); 207} 208 209static __inline uint32_t 210bus_space_read_4(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs) 211{ 212 uint32_t val; 213 214 val = (__predict_false(bst == IA64_BUS_SPACE_IO)) 215 ? bus_space_read_io_4(bsh + ofs) 216 : ia64_ld4((void *)(bsh + ofs)); 217 return (val); 218} 219 220static __inline uint64_t 221bus_space_read_8(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs) 222{ 223 uint64_t val; 224 225 val = (__predict_false(bst == IA64_BUS_SPACE_IO)) 226 ? bus_space_read_io_8(bsh + ofs) 227 : ia64_ld8((void *)(bsh + ofs)); 228 return (val); 229} 230 231 232/* 233 * Write 1 unit of data to bus space described by the tag, handle and ofs 234 * tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 235 * data is passed by value. 236 */ 237void bus_space_write_io_1(u_long, uint8_t); 238void bus_space_write_io_2(u_long, uint16_t); 239void bus_space_write_io_4(u_long, uint32_t); 240void bus_space_write_io_8(u_long, uint64_t); 241 242static __inline void 243bus_space_write_1(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs, 244 uint8_t val) 245{ 246 247 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 248 bus_space_write_io_1(bsh + ofs, val); 249 else 250 ia64_st1((void *)(bsh + ofs), val); 251} 252 253static __inline void 254bus_space_write_2(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs, 255 uint16_t val) 256{ 257 258 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 259 bus_space_write_io_2(bsh + ofs, val); 260 else 261 ia64_st2((void *)(bsh + ofs), val); 262} 263 264static __inline void 265bus_space_write_4(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs, 266 uint32_t val) 267{ 268 269 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 270 bus_space_write_io_4(bsh + ofs, val); 271 else 272 ia64_st4((void *)(bsh + ofs), val); 273} 274 275static __inline void 276bus_space_write_8(bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t ofs, 277 uint64_t val) 278{ 279 280 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 281 bus_space_write_io_8(bsh + ofs, val); 282 else 283 ia64_st8((void *)(bsh + ofs), val); 284} 285 286 287/* 288 * Read count units of data from bus space described by the tag, handle and 289 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 290 * data is returned in the buffer passed by reference. 291 */ 292void bus_space_read_multi_io_1(u_long, uint8_t *, size_t); 293void bus_space_read_multi_io_2(u_long, uint16_t *, size_t); 294void bus_space_read_multi_io_4(u_long, uint32_t *, size_t); 295void bus_space_read_multi_io_8(u_long, uint64_t *, size_t); 296 297static __inline void 298bus_space_read_multi_1(bus_space_tag_t bst, bus_space_handle_t bsh, 299 bus_size_t ofs, uint8_t *bufp, size_t count) 300{ 301 302 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 303 bus_space_read_multi_io_1(bsh + ofs, bufp, count); 304 else { 305 while (count-- > 0) 306 *bufp++ = ia64_ld1((void *)(bsh + ofs)); 307 } 308} 309 310static __inline void 311bus_space_read_multi_2(bus_space_tag_t bst, bus_space_handle_t bsh, 312 bus_size_t ofs, uint16_t *bufp, size_t count) 313{ 314 315 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 316 bus_space_read_multi_io_2(bsh + ofs, bufp, count); 317 else { 318 while (count-- > 0) 319 *bufp++ = ia64_ld2((void *)(bsh + ofs)); 320 } 321} 322 323static __inline void 324bus_space_read_multi_4(bus_space_tag_t bst, bus_space_handle_t bsh, 325 bus_size_t ofs, uint32_t *bufp, size_t count) 326{ 327 328 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 329 bus_space_read_multi_io_4(bsh + ofs, bufp, count); 330 else { 331 while (count-- > 0) 332 *bufp++ = ia64_ld4((void *)(bsh + ofs)); 333 } 334} 335 336static __inline void 337bus_space_read_multi_8(bus_space_tag_t bst, bus_space_handle_t bsh, 338 bus_size_t ofs, uint64_t *bufp, size_t count) 339{ 340 341 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 342 bus_space_read_multi_io_8(bsh + ofs, bufp, count); 343 else { 344 while (count-- > 0) 345 *bufp++ = ia64_ld8((void *)(bsh + ofs)); 346 } 347} 348 349 350/* 351 * Write count units of data to bus space described by the tag, handle and 352 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 353 * data is read from the buffer passed by reference. 354 */ 355void bus_space_write_multi_io_1(u_long, const uint8_t *, size_t); 356void bus_space_write_multi_io_2(u_long, const uint16_t *, size_t); 357void bus_space_write_multi_io_4(u_long, const uint32_t *, size_t); 358void bus_space_write_multi_io_8(u_long, const uint64_t *, size_t); 359 360static __inline void 361bus_space_write_multi_1(bus_space_tag_t bst, bus_space_handle_t bsh, 362 bus_size_t ofs, const uint8_t *bufp, size_t count) 363{ 364 365 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 366 bus_space_write_multi_io_1(bsh + ofs, bufp, count); 367 else { 368 while (count-- > 0) 369 ia64_st1((void *)(bsh + ofs), *bufp++); 370 } 371} 372 373static __inline void 374bus_space_write_multi_2(bus_space_tag_t bst, bus_space_handle_t bsh, 375 bus_size_t ofs, const uint16_t *bufp, size_t count) 376{ 377 378 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 379 bus_space_write_multi_io_2(bsh + ofs, bufp, count); 380 else { 381 while (count-- > 0) 382 ia64_st2((void *)(bsh + ofs), *bufp++); 383 } 384} 385 386static __inline void 387bus_space_write_multi_4(bus_space_tag_t bst, bus_space_handle_t bsh, 388 bus_size_t ofs, const uint32_t *bufp, size_t count) 389{ 390 391 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 392 bus_space_write_multi_io_4(bsh + ofs, bufp, count); 393 else { 394 while (count-- > 0) 395 ia64_st4((void *)(bsh + ofs), *bufp++); 396 } 397} 398 399static __inline void 400bus_space_write_multi_8(bus_space_tag_t bst, bus_space_handle_t bsh, 401 bus_size_t ofs, const uint64_t *bufp, size_t count) 402{ 403 404 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 405 bus_space_write_multi_io_8(bsh + ofs, bufp, count); 406 else { 407 while (count-- > 0) 408 ia64_st8((void *)(bsh + ofs), *bufp++); 409 } 410} 411 412 413/* 414 * Read count units of data from bus space described by the tag, handle and 415 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 416 * data is written to the buffer passed by reference and read from successive 417 * bus space addresses. Access is unordered. 418 */ 419void bus_space_read_region_io_1(u_long, uint8_t *, size_t); 420void bus_space_read_region_io_2(u_long, uint16_t *, size_t); 421void bus_space_read_region_io_4(u_long, uint32_t *, size_t); 422void bus_space_read_region_io_8(u_long, uint64_t *, size_t); 423 424static __inline void 425bus_space_read_region_1(bus_space_tag_t bst, bus_space_handle_t bsh, 426 bus_size_t ofs, uint8_t *bufp, size_t count) 427{ 428 429 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 430 bus_space_read_region_io_1(bsh + ofs, bufp, count); 431 else { 432 uint8_t *bsp = (void *)(bsh + ofs); 433 while (count-- > 0) 434 *bufp++ = ia64_ld1(bsp++); 435 } 436} 437 438static __inline void 439bus_space_read_region_2(bus_space_tag_t bst, bus_space_handle_t bsh, 440 bus_size_t ofs, uint16_t *bufp, size_t count) 441{ 442 443 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 444 bus_space_read_region_io_2(bsh + ofs, bufp, count); 445 else { 446 uint16_t *bsp = (void *)(bsh + ofs); 447 while (count-- > 0) 448 *bufp++ = ia64_ld2(bsp++); 449 } 450} 451 452static __inline void 453bus_space_read_region_4(bus_space_tag_t bst, bus_space_handle_t bsh, 454 bus_size_t ofs, uint32_t *bufp, size_t count) 455{ 456 457 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 458 bus_space_read_region_io_4(bsh + ofs, bufp, count); 459 else { 460 uint32_t *bsp = (void *)(bsh + ofs); 461 while (count-- > 0) 462 *bufp++ = ia64_ld4(bsp++); 463 } 464} 465 466static __inline void 467bus_space_read_region_8(bus_space_tag_t bst, bus_space_handle_t bsh, 468 bus_size_t ofs, uint64_t *bufp, size_t count) 469{ 470 471 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 472 bus_space_read_region_io_8(bsh + ofs, bufp, count); 473 else { 474 uint64_t *bsp = (void *)(bsh + ofs); 475 while (count-- > 0) 476 *bufp++ = ia64_ld8(bsp++); 477 } 478} 479 480 481/* 482 * Write count units of data from bus space described by the tag, handle and 483 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 484 * data is read from the buffer passed by reference and written to successive 485 * bus space addresses. Access is unordered. 486 */ 487void bus_space_write_region_io_1(u_long, const uint8_t *, size_t); 488void bus_space_write_region_io_2(u_long, const uint16_t *, size_t); 489void bus_space_write_region_io_4(u_long, const uint32_t *, size_t); 490void bus_space_write_region_io_8(u_long, const uint64_t *, size_t); 491 492static __inline void 493bus_space_write_region_1(bus_space_tag_t bst, bus_space_handle_t bsh, 494 bus_size_t ofs, const uint8_t *bufp, size_t count) 495{ 496 497 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 498 bus_space_write_region_io_1(bsh + ofs, bufp, count); 499 else { 500 uint8_t *bsp = (void *)(bsh + ofs); 501 while (count-- > 0) 502 ia64_st1(bsp++, *bufp++); 503 } 504} 505 506static __inline void 507bus_space_write_region_2(bus_space_tag_t bst, bus_space_handle_t bsh, 508 bus_size_t ofs, const uint16_t *bufp, size_t count) 509{ 510 511 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 512 bus_space_write_region_io_2(bsh + ofs, bufp, count); 513 else { 514 uint16_t *bsp = (void *)(bsh + ofs); 515 while (count-- > 0) 516 ia64_st2(bsp++, *bufp++); 517 } 518} 519 520static __inline void 521bus_space_write_region_4(bus_space_tag_t bst, bus_space_handle_t bsh, 522 bus_size_t ofs, const uint32_t *bufp, size_t count) 523{ 524 525 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 526 bus_space_write_region_io_4(bsh + ofs, bufp, count); 527 else { 528 uint32_t *bsp = (void *)(bsh + ofs); 529 while (count-- > 0) 530 ia64_st4(bsp++, *bufp++); 531 } 532} 533 534static __inline void 535bus_space_write_region_8(bus_space_tag_t bst, bus_space_handle_t bsh, 536 bus_size_t ofs, const uint64_t *bufp, size_t count) 537{ 538 539 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 540 bus_space_write_region_io_8(bsh + ofs, bufp, count); 541 else { 542 uint64_t *bsp = (void *)(bsh + ofs); 543 while (count-- > 0) 544 ia64_st8(bsp++, *bufp++); 545 } 546} 547 548 549/* 550 * Write count units of data from bus space described by the tag, handle and 551 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 552 * data is passed by value. Writes are unordered. 553 */ 554static __inline void 555bus_space_set_multi_1(bus_space_tag_t bst, bus_space_handle_t bsh, 556 bus_size_t ofs, uint8_t val, size_t count) 557{ 558 559 while (count-- > 0) 560 bus_space_write_1(bst, bsh, ofs, val); 561} 562 563static __inline void 564bus_space_set_multi_2(bus_space_tag_t bst, bus_space_handle_t bsh, 565 bus_size_t ofs, uint16_t val, size_t count) 566{ 567 568 while (count-- > 0) 569 bus_space_write_2(bst, bsh, ofs, val); 570} 571 572static __inline void 573bus_space_set_multi_4(bus_space_tag_t bst, bus_space_handle_t bsh, 574 bus_size_t ofs, uint32_t val, size_t count) 575{ 576 577 while (count-- > 0) 578 bus_space_write_4(bst, bsh, ofs, val); 579} 580 581static __inline void 582bus_space_set_multi_8(bus_space_tag_t bst, bus_space_handle_t bsh, 583 bus_size_t ofs, uint64_t val, size_t count) 584{ 585 586 while (count-- > 0) 587 bus_space_write_8(bst, bsh, ofs, val); 588} 589 590 591/* 592 * Write count units of data from bus space described by the tag, handle and 593 * ofs tuple. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. The 594 * data is passed by value and written to successive bus space addresses. 595 * Writes are unordered. 596 */ 597void bus_space_set_region_io_1(u_long, uint8_t, size_t); 598void bus_space_set_region_io_2(u_long, uint16_t, size_t); 599void bus_space_set_region_io_4(u_long, uint32_t, size_t); 600void bus_space_set_region_io_8(u_long, uint64_t, size_t); 601 602static __inline void 603bus_space_set_region_1(bus_space_tag_t bst, bus_space_handle_t bsh, 604 bus_size_t ofs, uint8_t val, size_t count) 605{ 606 607 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 608 bus_space_set_region_io_1(bsh + ofs, val, count); 609 else { 610 uint8_t *bsp = (void *)(bsh + ofs); 611 while (count-- > 0) 612 ia64_st1(bsp++, val); 613 } 614} 615 616static __inline void 617bus_space_set_region_2(bus_space_tag_t bst, bus_space_handle_t bsh, 618 bus_size_t ofs, uint16_t val, size_t count) 619{ 620 621 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 622 bus_space_set_region_io_2(bsh + ofs, val, count); 623 else { 624 uint16_t *bsp = (void *)(bsh + ofs); 625 while (count-- > 0) 626 ia64_st2(bsp++, val); 627 } 628} 629 630static __inline void 631bus_space_set_region_4(bus_space_tag_t bst, bus_space_handle_t bsh, 632 bus_size_t ofs, uint32_t val, size_t count) 633{ 634 635 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 636 bus_space_set_region_io_4(bsh + ofs, val, count); 637 else { 638 uint32_t *bsp = (void *)(bsh + ofs); 639 while (count-- > 0) 640 ia64_st4(bsp++, val); 641 } 642} 643 644static __inline void 645bus_space_set_region_8(bus_space_tag_t bst, bus_space_handle_t bsh, 646 bus_size_t ofs, uint64_t val, size_t count) 647{ 648 649 if (__predict_false(bst == IA64_BUS_SPACE_IO)) 650 bus_space_set_region_io_4(bsh + ofs, val, count); 651 else { 652 uint64_t *bsp = (void *)(bsh + ofs); 653 while (count-- > 0) 654 ia64_st8(bsp++, val); 655 } 656} 657 658 659/* 660 * Copy count units of data from bus space described by the tag and the first 661 * handle and ofs pair to bus space described by the tag and the second handle 662 * and ofs pair. A unit of data can be 1 byte, 2 bytes, 4 bytes or 8 bytes. 663 * The data is read from successive bus space addresses and also written to 664 * successive bus space addresses. Both reads and writes are unordered. 665 */ 666void bus_space_copy_region_io_1(u_long, u_long, size_t); 667void bus_space_copy_region_io_2(u_long, u_long, size_t); 668void bus_space_copy_region_io_4(u_long, u_long, size_t); 669void bus_space_copy_region_io_8(u_long, u_long, size_t); 670 671static __inline void 672bus_space_copy_region_1(bus_space_tag_t bst, bus_space_handle_t sbsh, 673 bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count) 674{ 675 uint8_t *dst, *src; 676 677 if (__predict_false(bst == IA64_BUS_SPACE_IO)) { 678 bus_space_copy_region_io_1(sbsh + sofs, dbsh + dofs, count); 679 return; 680 } 681 682 src = (void *)(sbsh + sofs); 683 dst = (void *)(dbsh + dofs); 684 if (src < dst) { 685 src += count - 1; 686 dst += count - 1; 687 while (count-- > 0) 688 ia64_st1(dst--, ia64_ld1(src--)); 689 } else { 690 while (count-- > 0) 691 ia64_st1(dst++, ia64_ld1(src++)); 692 } 693} 694 695static __inline void 696bus_space_copy_region_2(bus_space_tag_t bst, bus_space_handle_t sbsh, 697 bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count) 698{ 699 uint16_t *dst, *src; 700 701 if (__predict_false(bst == IA64_BUS_SPACE_IO)) { 702 bus_space_copy_region_io_2(sbsh + sofs, dbsh + dofs, count); 703 return; 704 } 705 706 src = (void *)(sbsh + sofs); 707 dst = (void *)(dbsh + dofs); 708 if (src < dst) { 709 src += count - 1; 710 dst += count - 1; 711 while (count-- > 0) 712 ia64_st2(dst--, ia64_ld2(src--)); 713 } else { 714 while (count-- > 0) 715 ia64_st2(dst++, ia64_ld2(src++)); 716 } 717} 718 719static __inline void 720bus_space_copy_region_4(bus_space_tag_t bst, bus_space_handle_t sbsh, 721 bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count) 722{ 723 uint32_t *dst, *src; 724 725 if (__predict_false(bst == IA64_BUS_SPACE_IO)) { 726 bus_space_copy_region_io_4(sbsh + sofs, dbsh + dofs, count); 727 return; 728 } 729 730 src = (void *)(sbsh + sofs); 731 dst = (void *)(dbsh + dofs); 732 if (src < dst) { 733 src += count - 1; 734 dst += count - 1; 735 while (count-- > 0) 736 ia64_st4(dst--, ia64_ld4(src--)); 737 } else { 738 while (count-- > 0) 739 ia64_st4(dst++, ia64_ld4(src++)); 740 } 741} 742 743static __inline void 744bus_space_copy_region_8(bus_space_tag_t bst, bus_space_handle_t sbsh, 745 bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count) 746{ 747 uint64_t *dst, *src; 748 749 if (__predict_false(bst == IA64_BUS_SPACE_IO)) { 750 bus_space_copy_region_io_8(sbsh + sofs, dbsh + dofs, count); 751 return; 752 } 753 754 src = (void *)(sbsh + sofs); 755 dst = (void *)(dbsh + dofs); 756 if (src < dst) { 757 src += count - 1; 758 dst += count - 1; 759 while (count-- > 0) 760 ia64_st8(dst--, ia64_ld8(src--)); 761 } else { 762 while (count-- > 0) 763 ia64_st8(dst++, ia64_ld8(src++)); 764 } 765} 766 767 768/* 769 * Stream accesses are the same as normal accesses on ia64; there are no 770 * supported bus systems with an endianess different from the host one. 771 */ 772 773#define bus_space_read_stream_1 bus_space_read_1 774#define bus_space_read_stream_2 bus_space_read_2 775#define bus_space_read_stream_4 bus_space_read_4 776#define bus_space_read_stream_8 bus_space_read_8 777 778#define bus_space_write_stream_1 bus_space_write_1 779#define bus_space_write_stream_2 bus_space_write_2 780#define bus_space_write_stream_4 bus_space_write_4 781#define bus_space_write_stream_8 bus_space_write_8 782 783#define bus_space_read_multi_stream_1 bus_space_read_multi_1 784#define bus_space_read_multi_stream_2 bus_space_read_multi_2 785#define bus_space_read_multi_stream_4 bus_space_read_multi_4 786#define bus_space_read_multi_stream_8 bus_space_read_multi_8 787 788#define bus_space_write_multi_stream_1 bus_space_write_multi_1 789#define bus_space_write_multi_stream_2 bus_space_write_multi_2 790#define bus_space_write_multi_stream_4 bus_space_write_multi_4 791#define bus_space_write_multi_stream_8 bus_space_write_multi_8 792 793#define bus_space_read_region_stream_1 bus_space_read_region_1 794#define bus_space_read_region_stream_2 bus_space_read_region_2 795#define bus_space_read_region_stream_4 bus_space_read_region_4 796#define bus_space_read_region_stream_8 bus_space_read_region_8 797 798#define bus_space_write_region_stream_1 bus_space_write_region_1 799#define bus_space_write_region_stream_2 bus_space_write_region_2 800#define bus_space_write_region_stream_4 bus_space_write_region_4 801#define bus_space_write_region_stream_8 bus_space_write_region_8 802 803#define bus_space_set_multi_stream_1 bus_space_set_multi_1 804#define bus_space_set_multi_stream_2 bus_space_set_multi_2 805#define bus_space_set_multi_stream_4 bus_space_set_multi_4 806#define bus_space_set_multi_stream_8 bus_space_set_multi_8 807 808#define bus_space_set_region_stream_1 bus_space_set_region_1 809#define bus_space_set_region_stream_2 bus_space_set_region_2 810#define bus_space_set_region_stream_4 bus_space_set_region_4 811#define bus_space_set_region_stream_8 bus_space_set_region_8 812 813#define bus_space_copy_region_stream_1 bus_space_copy_region_1 814#define bus_space_copy_region_stream_2 bus_space_copy_region_2 815#define bus_space_copy_region_stream_4 bus_space_copy_region_4 816#define bus_space_copy_region_stream_8 bus_space_copy_region_8 817 818#include <machine/bus_dma.h> 819 820#endif /* _MACHINE_BUS_H_ */ 821