Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/powerpc/ps3/ps3disk.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (C) 2011 glevand (geoffrey.levand@mail.ru) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/sysctl.h> 35 #include <sys/disk.h> 36 #include <sys/bio.h> 37 #include <sys/bus.h> 38 #include <sys/conf.h> 39 #include <sys/kernel.h> 40 #include <sys/kthread.h> 41 #include <sys/lock.h> 42 #include <sys/malloc.h> 43 #include <sys/module.h> 44 #include <sys/mutex.h> 45 46 #include <vm/vm.h> 47 #include <vm/pmap.h> 48 49 #include <machine/pio.h> 50 #include <machine/bus.h> 51 #include <machine/platform.h> 52 #include <machine/resource.h> 53 #include <sys/bus.h> 54 #include <sys/rman.h> 55 56 #include <geom/geom_disk.h> 57 58 #include "ps3bus.h" 59 #include "ps3-hvcall.h" 60 61 #define PS3DISK_LOCK_INIT(_sc) \ 62 mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), "ps3disk", MTX_DEF) 63 #define PS3DISK_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx); 64 #define PS3DISK_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 65 #define PS3DISK_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 66 #define PS3DISK_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED); 67 #define PS3DISK_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); 68 69 #define LV1_STORAGE_ATA_HDDOUT 0x23 70 71 static SYSCTL_NODE(_hw, OID_AUTO, ps3disk, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 72 "PS3 Disk driver parameters"); 73 74 #ifdef PS3DISK_DEBUG 75 static int ps3disk_debug = 0; 76 SYSCTL_INT(_hw_ps3disk, OID_AUTO, debug, CTLFLAG_RW, &ps3disk_debug, 77 0, "control debugging printfs"); 78 TUNABLE_INT("hw.ps3disk.debug", &ps3disk_debug); 79 enum { 80 PS3DISK_DEBUG_INTR = 0x00000001, 81 PS3DISK_DEBUG_TASK = 0x00000002, 82 PS3DISK_DEBUG_READ = 0x00000004, 83 PS3DISK_DEBUG_WRITE = 0x00000008, 84 PS3DISK_DEBUG_FLUSH = 0x00000010, 85 PS3DISK_DEBUG_ANY = 0xffffffff 86 }; 87 #define DPRINTF(sc, m, fmt, ...) \ 88 do { \ 89 if (sc->sc_debug & (m)) \ 90 printf(fmt, __VA_ARGS__); \ 91 } while (0) 92 #else 93 #define DPRINTF(sc, m, fmt, ...) 94 #endif 95 96 struct ps3disk_region { 97 uint64_t r_id; 98 uint64_t r_start; 99 uint64_t r_size; 100 uint64_t r_flags; 101 }; 102 103 struct ps3disk_softc { 104 device_t sc_dev; 105 106 struct mtx sc_mtx; 107 108 uint64_t sc_blksize; 109 uint64_t sc_nblocks; 110 111 uint64_t sc_nregs; 112 struct ps3disk_region *sc_reg; 113 114 int sc_irqid; 115 struct resource *sc_irq; 116 void *sc_irqctx; 117 118 struct disk **sc_disk; 119 120 struct bio_queue_head sc_bioq; 121 struct bio_queue_head sc_deferredq; 122 struct proc *sc_task; 123 124 bus_dma_tag_t sc_dmatag; 125 126 int sc_running; 127 int sc_debug; 128 }; 129 130 static int ps3disk_open(struct disk *dp); 131 static int ps3disk_close(struct disk *dp); 132 static void ps3disk_strategy(struct bio *bp); 133 134 static void ps3disk_task(void *arg); 135 static void ps3disk_intr(void *arg); 136 static int ps3disk_get_disk_geometry(struct ps3disk_softc *sc); 137 static int ps3disk_enum_regions(struct ps3disk_softc *sc); 138 static void ps3disk_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, 139 int error); 140 141 static void ps3disk_sysctlattach(struct ps3disk_softc *sc); 142 143 static MALLOC_DEFINE(M_PS3DISK, "ps3disk", "PS3 Disk"); 144 145 static int 146 ps3disk_probe(device_t dev) 147 { 148 if (ps3bus_get_bustype(dev) != PS3_BUSTYPE_STORAGE || 149 ps3bus_get_devtype(dev) != PS3_DEVTYPE_DISK) 150 return (ENXIO); 151 152 device_set_desc(dev, "Playstation 3 Disk"); 153 154 return (BUS_PROBE_SPECIFIC); 155 } 156 157 static int 158 ps3disk_attach(device_t dev) 159 { 160 struct ps3disk_softc *sc; 161 struct disk *d; 162 intmax_t mb; 163 uint64_t junk; 164 char unit; 165 int i, err; 166 167 sc = device_get_softc(dev); 168 sc->sc_dev = dev; 169 170 PS3DISK_LOCK_INIT(sc); 171 172 err = ps3disk_get_disk_geometry(sc); 173 if (err) { 174 device_printf(dev, "Could not get disk geometry\n"); 175 err = ENXIO; 176 goto fail_destroy_lock; 177 } 178 179 device_printf(dev, "block size %lu total blocks %lu\n", 180 sc->sc_blksize, sc->sc_nblocks); 181 182 err = ps3disk_enum_regions(sc); 183 if (err) { 184 device_printf(dev, "Could not enumerate disk regions\n"); 185 err = ENXIO; 186 goto fail_destroy_lock; 187 } 188 189 device_printf(dev, "Found %lu regions\n", sc->sc_nregs); 190 191 if (!sc->sc_nregs) { 192 err = ENXIO; 193 goto fail_destroy_lock; 194 } 195 196 /* Setup interrupt handler */ 197 sc->sc_irqid = 0; 198 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irqid, 199 RF_ACTIVE); 200 if (!sc->sc_irq) { 201 device_printf(dev, "Could not allocate IRQ\n"); 202 err = ENXIO; 203 goto fail_free_regions; 204 } 205 206 err = bus_setup_intr(dev, sc->sc_irq, 207 INTR_TYPE_BIO | INTR_MPSAFE | INTR_ENTROPY, 208 NULL, ps3disk_intr, sc, &sc->sc_irqctx); 209 if (err) { 210 device_printf(dev, "Could not setup IRQ\n"); 211 err = ENXIO; 212 goto fail_release_intr; 213 } 214 215 /* Setup DMA */ 216 err = bus_dma_tag_create(bus_get_dma_tag(dev), 4096, 0, 217 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, 218 BUS_SPACE_UNRESTRICTED, 1, PAGE_SIZE, 0, 219 busdma_lock_mutex, &sc->sc_mtx, &sc->sc_dmatag); 220 if (err) { 221 device_printf(dev, "Could not create DMA tag\n"); 222 err = ENXIO; 223 goto fail_teardown_intr; 224 } 225 226 /* Setup disks */ 227 228 sc->sc_disk = malloc(sc->sc_nregs * sizeof(struct disk *), 229 M_PS3DISK, M_ZERO | M_WAITOK); 230 if (!sc->sc_disk) { 231 device_printf(dev, "Could not allocate disk(s)\n"); 232 err = ENOMEM; 233 goto fail_teardown_intr; 234 } 235 236 for (i = 0; i < sc->sc_nregs; i++) { 237 struct ps3disk_region *rp = &sc->sc_reg[i]; 238 239 d = sc->sc_disk[i] = disk_alloc(); 240 d->d_open = ps3disk_open; 241 d->d_close = ps3disk_close; 242 d->d_strategy = ps3disk_strategy; 243 d->d_name = "ps3disk"; 244 d->d_drv1 = sc; 245 d->d_maxsize = PAGE_SIZE; 246 d->d_sectorsize = sc->sc_blksize; 247 d->d_unit = i; 248 d->d_mediasize = sc->sc_reg[i].r_size * sc->sc_blksize; 249 d->d_flags |= DISKFLAG_CANFLUSHCACHE; 250 251 mb = d->d_mediasize >> 20; 252 unit = 'M'; 253 if (mb >= 10240) { 254 unit = 'G'; 255 mb /= 1024; 256 } 257 258 /* Test to see if we can read this region */ 259 err = lv1_storage_read(ps3bus_get_device(dev), d->d_unit, 260 0, 0, rp->r_flags, 0, &junk); 261 device_printf(dev, "region %d %ju%cB%s\n", i, mb, unit, 262 (err == LV1_DENIED_BY_POLICY) ? " (hypervisor protected)" 263 : ""); 264 265 if (err != LV1_DENIED_BY_POLICY) 266 disk_create(d, DISK_VERSION); 267 } 268 err = 0; 269 270 bioq_init(&sc->sc_bioq); 271 bioq_init(&sc->sc_deferredq); 272 kproc_create(&ps3disk_task, sc, &sc->sc_task, 0, 0, "ps3disk"); 273 274 ps3disk_sysctlattach(sc); 275 sc->sc_running = 1; 276 return (0); 277 278 fail_teardown_intr: 279 bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx); 280 fail_release_intr: 281 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq); 282 fail_free_regions: 283 free(sc->sc_reg, M_PS3DISK); 284 fail_destroy_lock: 285 PS3DISK_LOCK_DESTROY(sc); 286 return (err); 287 } 288 289 static int 290 ps3disk_detach(device_t dev) 291 { 292 struct ps3disk_softc *sc = device_get_softc(dev); 293 int i; 294 295 for (i = 0; i < sc->sc_nregs; i++) 296 disk_destroy(sc->sc_disk[i]); 297 298 bus_dma_tag_destroy(sc->sc_dmatag); 299 300 bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx); 301 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq); 302 303 free(sc->sc_disk, M_PS3DISK); 304 free(sc->sc_reg, M_PS3DISK); 305 306 PS3DISK_LOCK_DESTROY(sc); 307 308 return (0); 309 } 310 311 static int 312 ps3disk_open(struct disk *dp) 313 { 314 return (0); 315 } 316 317 static int 318 ps3disk_close(struct disk *dp) 319 { 320 return (0); 321 } 322 323 /* Process deferred blocks */ 324 static void 325 ps3disk_task(void *arg) 326 { 327 struct ps3disk_softc *sc = (struct ps3disk_softc *) arg; 328 struct bio *bp; 329 330 while (1) { 331 kproc_suspend_check(sc->sc_task); 332 tsleep(&sc->sc_deferredq, PRIBIO, "ps3disk", 10); 333 334 PS3DISK_LOCK(sc); 335 bp = bioq_takefirst(&sc->sc_deferredq); 336 PS3DISK_UNLOCK(sc); 337 338 if (bp == NULL) 339 continue; 340 341 if (bp->bio_driver1 != NULL) { 342 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 343 bp->bio_driver1); 344 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 345 bp->bio_driver1); 346 } 347 348 ps3disk_strategy(bp); 349 } 350 351 kproc_exit(0); 352 } 353 354 static void 355 ps3disk_strategy(struct bio *bp) 356 { 357 struct ps3disk_softc *sc = (struct ps3disk_softc *)bp->bio_disk->d_drv1; 358 int err; 359 360 if (sc == NULL) { 361 bp->bio_flags |= BIO_ERROR; 362 bp->bio_error = EINVAL; 363 biodone(bp); 364 return; 365 } 366 367 PS3DISK_LOCK(sc); 368 bp->bio_resid = bp->bio_bcount; 369 bioq_insert_tail(&sc->sc_bioq, bp); 370 371 DPRINTF(sc, PS3DISK_DEBUG_TASK, "%s: bio_cmd 0x%02x\n", 372 __func__, bp->bio_cmd); 373 374 err = 0; 375 if (bp->bio_cmd == BIO_FLUSH) { 376 bp->bio_driver1 = 0; 377 err = lv1_storage_send_device_command( 378 ps3bus_get_device(sc->sc_dev), LV1_STORAGE_ATA_HDDOUT, 379 0, 0, 0, 0, (uint64_t *)&bp->bio_driver2); 380 if (err == LV1_BUSY) 381 err = EAGAIN; 382 } else if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 383 if (bp->bio_bcount % sc->sc_blksize != 0) { 384 err = EINVAL; 385 } else { 386 bus_dmamap_create(sc->sc_dmatag, BUS_DMA_COHERENT, 387 (bus_dmamap_t *)(&bp->bio_driver1)); 388 err = bus_dmamap_load(sc->sc_dmatag, 389 (bus_dmamap_t)(bp->bio_driver1), bp->bio_data, 390 bp->bio_bcount, ps3disk_transfer, bp, 0); 391 if (err == EINPROGRESS) 392 err = 0; 393 } 394 } else { 395 err = EINVAL; 396 } 397 398 if (err == EAGAIN) { 399 bioq_remove(&sc->sc_bioq, bp); 400 bioq_insert_tail(&sc->sc_deferredq, bp); 401 } else if (err != 0) { 402 bp->bio_error = err; 403 bp->bio_flags |= BIO_ERROR; 404 bioq_remove(&sc->sc_bioq, bp); 405 disk_err(bp, "hard error", -1, 1); 406 biodone(bp); 407 } 408 409 PS3DISK_UNLOCK(sc); 410 } 411 412 static void 413 ps3disk_intr(void *arg) 414 { 415 struct ps3disk_softc *sc = (struct ps3disk_softc *) arg; 416 device_t dev = sc->sc_dev; 417 uint64_t devid = ps3bus_get_device(dev); 418 struct bio *bp; 419 uint64_t tag, status; 420 421 if (lv1_storage_get_async_status(devid, &tag, &status) != 0) 422 return; 423 424 PS3DISK_LOCK(sc); 425 426 DPRINTF(sc, PS3DISK_DEBUG_INTR, "%s: tag 0x%016lx " 427 "status 0x%016lx\n", __func__, tag, status); 428 429 /* Locate the matching request */ 430 TAILQ_FOREACH(bp, &sc->sc_bioq.queue, bio_queue) { 431 if ((uint64_t)bp->bio_driver2 != tag) 432 continue; 433 434 if (status != 0) { 435 device_printf(sc->sc_dev, "%s error (%#lx)\n", 436 (bp->bio_cmd == BIO_READ) ? "Read" : "Write", 437 status); 438 bp->bio_error = EIO; 439 bp->bio_flags |= BIO_ERROR; 440 } else { 441 bp->bio_error = 0; 442 bp->bio_resid = 0; 443 bp->bio_flags |= BIO_DONE; 444 } 445 446 if (bp->bio_driver1 != NULL) { 447 if (bp->bio_cmd == BIO_READ) 448 bus_dmamap_sync(sc->sc_dmatag, (bus_dmamap_t) 449 bp->bio_driver1, BUS_DMASYNC_POSTREAD); 450 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 451 bp->bio_driver1); 452 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 453 bp->bio_driver1); 454 } 455 456 bioq_remove(&sc->sc_bioq, bp); 457 biodone(bp); 458 break; 459 } 460 461 if (bioq_first(&sc->sc_deferredq) != NULL) 462 wakeup(&sc->sc_deferredq); 463 464 PS3DISK_UNLOCK(sc); 465 } 466 467 static int 468 ps3disk_get_disk_geometry(struct ps3disk_softc *sc) 469 { 470 device_t dev = sc->sc_dev; 471 uint64_t bus_index = ps3bus_get_busidx(dev); 472 uint64_t dev_index = ps3bus_get_devidx(dev); 473 uint64_t junk; 474 int err; 475 476 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 477 (lv1_repository_string("bus") >> 32) | bus_index, 478 lv1_repository_string("dev") | dev_index, 479 lv1_repository_string("blk_size"), 0, &sc->sc_blksize, &junk); 480 if (err) { 481 device_printf(dev, "Could not get block size (0x%08x)\n", err); 482 return (ENXIO); 483 } 484 485 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 486 (lv1_repository_string("bus") >> 32) | bus_index, 487 lv1_repository_string("dev") | dev_index, 488 lv1_repository_string("n_blocks"), 0, &sc->sc_nblocks, &junk); 489 if (err) { 490 device_printf(dev, "Could not get total number of blocks " 491 "(0x%08x)\n", err); 492 err = ENXIO; 493 } 494 495 return (err); 496 } 497 498 static int 499 ps3disk_enum_regions(struct ps3disk_softc *sc) 500 { 501 device_t dev = sc->sc_dev; 502 uint64_t bus_index = ps3bus_get_busidx(dev); 503 uint64_t dev_index = ps3bus_get_devidx(dev); 504 uint64_t junk; 505 int i, err; 506 507 /* Read number of regions */ 508 509 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 510 (lv1_repository_string("bus") >> 32) | bus_index, 511 lv1_repository_string("dev") | dev_index, 512 lv1_repository_string("n_regs"), 0, &sc->sc_nregs, &junk); 513 if (err) { 514 device_printf(dev, "Could not get number of regions (0x%08x)\n", 515 err); 516 err = ENXIO; 517 goto fail; 518 } 519 520 if (!sc->sc_nregs) 521 return 0; 522 523 sc->sc_reg = malloc(sc->sc_nregs * sizeof(struct ps3disk_region), 524 M_PS3DISK, M_ZERO | M_WAITOK); 525 if (!sc->sc_reg) { 526 err = ENOMEM; 527 goto fail; 528 } 529 530 /* Setup regions */ 531 532 for (i = 0; i < sc->sc_nregs; i++) { 533 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 534 (lv1_repository_string("bus") >> 32) | bus_index, 535 lv1_repository_string("dev") | dev_index, 536 lv1_repository_string("region") | i, 537 lv1_repository_string("id"), &sc->sc_reg[i].r_id, &junk); 538 if (err) { 539 device_printf(dev, "Could not get region id (0x%08x)\n", 540 err); 541 err = ENXIO; 542 goto fail; 543 } 544 545 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 546 (lv1_repository_string("bus") >> 32) | bus_index, 547 lv1_repository_string("dev") | dev_index, 548 lv1_repository_string("region") | i, 549 lv1_repository_string("start"), &sc->sc_reg[i].r_start, 550 &junk); 551 if (err) { 552 device_printf(dev, "Could not get region start " 553 "(0x%08x)\n", err); 554 err = ENXIO; 555 goto fail; 556 } 557 558 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 559 (lv1_repository_string("bus") >> 32) | bus_index, 560 lv1_repository_string("dev") | dev_index, 561 lv1_repository_string("region") | i, 562 lv1_repository_string("size"), &sc->sc_reg[i].r_size, 563 &junk); 564 if (err) { 565 device_printf(dev, "Could not get region size " 566 "(0x%08x)\n", err); 567 err = ENXIO; 568 goto fail; 569 } 570 571 if (i == 0) 572 sc->sc_reg[i].r_flags = 0x2; 573 else 574 sc->sc_reg[i].r_flags = 0; 575 } 576 577 return (0); 578 579 fail: 580 581 sc->sc_nregs = 0; 582 if (sc->sc_reg) 583 free(sc->sc_reg, M_PS3DISK); 584 585 return (err); 586 } 587 588 static void 589 ps3disk_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 590 { 591 struct bio *bp = (struct bio *)(arg); 592 struct ps3disk_softc *sc = (struct ps3disk_softc *)bp->bio_disk->d_drv1; 593 struct ps3disk_region *rp = &sc->sc_reg[bp->bio_disk->d_unit]; 594 uint64_t devid = ps3bus_get_device(sc->sc_dev); 595 uint64_t block; 596 int i, err; 597 598 /* Locks already held by busdma */ 599 PS3DISK_ASSERT_LOCKED(sc); 600 601 if (error) { 602 bp->bio_error = error; 603 bp->bio_flags |= BIO_ERROR; 604 bioq_remove(&sc->sc_bioq, bp); 605 biodone(bp); 606 return; 607 } 608 609 block = bp->bio_pblkno; 610 for (i = 0; i < nsegs; i++) { 611 KASSERT((segs[i].ds_len % sc->sc_blksize) == 0, 612 ("DMA fragments not blocksize multiples")); 613 614 if (bp->bio_cmd == BIO_READ) { 615 err = lv1_storage_read(devid, rp->r_id, 616 block, segs[i].ds_len/sc->sc_blksize, 617 rp->r_flags, segs[i].ds_addr, 618 (uint64_t *)&bp->bio_driver2); 619 } else { 620 bus_dmamap_sync(sc->sc_dmatag, 621 (bus_dmamap_t)bp->bio_driver1, 622 BUS_DMASYNC_PREWRITE); 623 err = lv1_storage_write(devid, rp->r_id, 624 block, segs[i].ds_len/sc->sc_blksize, 625 rp->r_flags, segs[i].ds_addr, 626 (uint64_t *)&bp->bio_driver2); 627 } 628 629 if (err) { 630 if (err == LV1_BUSY) { 631 bioq_remove(&sc->sc_bioq, bp); 632 bioq_insert_tail(&sc->sc_deferredq, bp); 633 } else { 634 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 635 bp->bio_driver1); 636 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 637 bp->bio_driver1); 638 device_printf(sc->sc_dev, "Could not read " 639 "sectors (0x%08x)\n", err); 640 bp->bio_error = EINVAL; 641 bp->bio_flags |= BIO_ERROR; 642 bioq_remove(&sc->sc_bioq, bp); 643 biodone(bp); 644 } 645 646 break; 647 } 648 649 DPRINTF(sc, PS3DISK_DEBUG_READ, "%s: tag 0x%016lx\n", 650 __func__, sc->sc_bounce_tag); 651 } 652 } 653 654 #ifdef PS3DISK_DEBUG 655 static int 656 ps3disk_sysctl_debug(SYSCTL_HANDLER_ARGS) 657 { 658 struct ps3disk_softc *sc = arg1; 659 int debug, error; 660 661 debug = sc->sc_debug; 662 663 error = sysctl_handle_int(oidp, &debug, 0, req); 664 if (error || !req->newptr) 665 return error; 666 667 sc->sc_debug = debug; 668 669 return 0; 670 } 671 #endif 672 673 static void 674 ps3disk_sysctlattach(struct ps3disk_softc *sc) 675 { 676 #ifdef PS3DISK_DEBUG 677 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 678 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 679 680 sc->sc_debug = ps3disk_debug; 681 682 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 683 "debug", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0, 684 ps3disk_sysctl_debug, "I", "control debugging printfs"); 685 #endif 686 } 687 688 static device_method_t ps3disk_methods[] = { 689 DEVMETHOD(device_probe, ps3disk_probe), 690 DEVMETHOD(device_attach, ps3disk_attach), 691 DEVMETHOD(device_detach, ps3disk_detach), 692 {0, 0}, 693 }; 694 695 static driver_t ps3disk_driver = { 696 "ps3disk", 697 ps3disk_methods, 698 sizeof(struct ps3disk_softc), 699 }; 700 701 DRIVER_MODULE(ps3disk, ps3bus, ps3disk_driver, 0, 0);
Cache object: 8108d7bed132633f5059e38dddefd604
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