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 * Copyright (C) 2011 glevand (geoffrey.levand@mail.ru) 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 ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD: releng/11.2/sys/powerpc/ps3/ps3disk.c 331722 2018-03-29 02:50:57Z eadler $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/sysctl.h> 33 #include <sys/disk.h> 34 #include <sys/bio.h> 35 #include <sys/bus.h> 36 #include <sys/conf.h> 37 #include <sys/kernel.h> 38 #include <sys/kthread.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/module.h> 42 #include <sys/mutex.h> 43 44 #include <vm/vm.h> 45 #include <vm/pmap.h> 46 47 #include <machine/pio.h> 48 #include <machine/bus.h> 49 #include <machine/platform.h> 50 #include <machine/resource.h> 51 #include <sys/bus.h> 52 #include <sys/rman.h> 53 54 #include <geom/geom_disk.h> 55 56 #include "ps3bus.h" 57 #include "ps3-hvcall.h" 58 59 #define PS3DISK_LOCK_INIT(_sc) \ 60 mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), "ps3disk", MTX_DEF) 61 #define PS3DISK_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx); 62 #define PS3DISK_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 63 #define PS3DISK_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 64 #define PS3DISK_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED); 65 #define PS3DISK_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); 66 67 #define LV1_STORAGE_ATA_HDDOUT 0x23 68 69 static SYSCTL_NODE(_hw, OID_AUTO, ps3disk, CTLFLAG_RD, 0, 70 "PS3 Disk driver parameters"); 71 72 #ifdef PS3DISK_DEBUG 73 static int ps3disk_debug = 0; 74 SYSCTL_INT(_hw_ps3disk, OID_AUTO, debug, CTLFLAG_RW, &ps3disk_debug, 75 0, "control debugging printfs"); 76 TUNABLE_INT("hw.ps3disk.debug", &ps3disk_debug); 77 enum { 78 PS3DISK_DEBUG_INTR = 0x00000001, 79 PS3DISK_DEBUG_TASK = 0x00000002, 80 PS3DISK_DEBUG_READ = 0x00000004, 81 PS3DISK_DEBUG_WRITE = 0x00000008, 82 PS3DISK_DEBUG_FLUSH = 0x00000010, 83 PS3DISK_DEBUG_ANY = 0xffffffff 84 }; 85 #define DPRINTF(sc, m, fmt, ...) \ 86 do { \ 87 if (sc->sc_debug & (m)) \ 88 printf(fmt, __VA_ARGS__); \ 89 } while (0) 90 #else 91 #define DPRINTF(sc, m, fmt, ...) 92 #endif 93 94 struct ps3disk_region { 95 uint64_t r_id; 96 uint64_t r_start; 97 uint64_t r_size; 98 uint64_t r_flags; 99 }; 100 101 struct ps3disk_softc { 102 device_t sc_dev; 103 104 struct mtx sc_mtx; 105 106 uint64_t sc_blksize; 107 uint64_t sc_nblocks; 108 109 uint64_t sc_nregs; 110 struct ps3disk_region *sc_reg; 111 112 int sc_irqid; 113 struct resource *sc_irq; 114 void *sc_irqctx; 115 116 struct disk **sc_disk; 117 118 struct bio_queue_head sc_bioq; 119 struct bio_queue_head sc_deferredq; 120 struct proc *sc_task; 121 122 bus_dma_tag_t sc_dmatag; 123 124 int sc_running; 125 int sc_debug; 126 }; 127 128 static int ps3disk_open(struct disk *dp); 129 static int ps3disk_close(struct disk *dp); 130 static void ps3disk_strategy(struct bio *bp); 131 132 static void ps3disk_task(void *arg); 133 static void ps3disk_intr(void *arg); 134 static int ps3disk_get_disk_geometry(struct ps3disk_softc *sc); 135 static int ps3disk_enum_regions(struct ps3disk_softc *sc); 136 static void ps3disk_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, 137 int error); 138 139 static void ps3disk_sysctlattach(struct ps3disk_softc *sc); 140 141 static MALLOC_DEFINE(M_PS3DISK, "ps3disk", "PS3 Disk"); 142 143 static int 144 ps3disk_probe(device_t dev) 145 { 146 if (ps3bus_get_bustype(dev) != PS3_BUSTYPE_STORAGE || 147 ps3bus_get_devtype(dev) != PS3_DEVTYPE_DISK) 148 return (ENXIO); 149 150 device_set_desc(dev, "Playstation 3 Disk"); 151 152 return (BUS_PROBE_SPECIFIC); 153 } 154 155 static int 156 ps3disk_attach(device_t dev) 157 { 158 struct ps3disk_softc *sc; 159 struct disk *d; 160 intmax_t mb; 161 uint64_t junk; 162 char unit; 163 int i, err; 164 165 sc = device_get_softc(dev); 166 sc->sc_dev = dev; 167 168 PS3DISK_LOCK_INIT(sc); 169 170 err = ps3disk_get_disk_geometry(sc); 171 if (err) { 172 device_printf(dev, "Could not get disk geometry\n"); 173 err = ENXIO; 174 goto fail_destroy_lock; 175 } 176 177 device_printf(dev, "block size %lu total blocks %lu\n", 178 sc->sc_blksize, sc->sc_nblocks); 179 180 err = ps3disk_enum_regions(sc); 181 if (err) { 182 device_printf(dev, "Could not enumerate disk regions\n"); 183 err = ENXIO; 184 goto fail_destroy_lock; 185 } 186 187 device_printf(dev, "Found %lu regions\n", sc->sc_nregs); 188 189 if (!sc->sc_nregs) { 190 err = ENXIO; 191 goto fail_destroy_lock; 192 } 193 194 /* Setup interrupt handler */ 195 sc->sc_irqid = 0; 196 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irqid, 197 RF_ACTIVE); 198 if (!sc->sc_irq) { 199 device_printf(dev, "Could not allocate IRQ\n"); 200 err = ENXIO; 201 goto fail_free_regions; 202 } 203 204 err = bus_setup_intr(dev, sc->sc_irq, 205 INTR_TYPE_BIO | INTR_MPSAFE | INTR_ENTROPY, 206 NULL, ps3disk_intr, sc, &sc->sc_irqctx); 207 if (err) { 208 device_printf(dev, "Could not setup IRQ\n"); 209 err = ENXIO; 210 goto fail_release_intr; 211 } 212 213 /* Setup DMA */ 214 err = bus_dma_tag_create(bus_get_dma_tag(dev), 4096, 0, 215 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, 216 BUS_SPACE_UNRESTRICTED, 1, PAGE_SIZE, 0, 217 busdma_lock_mutex, &sc->sc_mtx, &sc->sc_dmatag); 218 if (err) { 219 device_printf(dev, "Could not create DMA tag\n"); 220 err = ENXIO; 221 goto fail_teardown_intr; 222 } 223 224 /* Setup disks */ 225 226 sc->sc_disk = malloc(sc->sc_nregs * sizeof(struct disk *), 227 M_PS3DISK, M_ZERO | M_WAITOK); 228 if (!sc->sc_disk) { 229 device_printf(dev, "Could not allocate disk(s)\n"); 230 err = ENOMEM; 231 goto fail_teardown_intr; 232 } 233 234 for (i = 0; i < sc->sc_nregs; i++) { 235 struct ps3disk_region *rp = &sc->sc_reg[i]; 236 237 d = sc->sc_disk[i] = disk_alloc(); 238 d->d_open = ps3disk_open; 239 d->d_close = ps3disk_close; 240 d->d_strategy = ps3disk_strategy; 241 d->d_name = "ps3disk"; 242 d->d_drv1 = sc; 243 d->d_maxsize = PAGE_SIZE; 244 d->d_sectorsize = sc->sc_blksize; 245 d->d_unit = i; 246 d->d_mediasize = sc->sc_reg[i].r_size * sc->sc_blksize; 247 d->d_flags |= DISKFLAG_CANFLUSHCACHE; 248 249 mb = d->d_mediasize >> 20; 250 unit = 'M'; 251 if (mb >= 10240) { 252 unit = 'G'; 253 mb /= 1024; 254 } 255 256 /* Test to see if we can read this region */ 257 err = lv1_storage_read(ps3bus_get_device(dev), d->d_unit, 258 0, 0, rp->r_flags, 0, &junk); 259 device_printf(dev, "region %d %ju%cB%s\n", i, mb, unit, 260 (err == LV1_DENIED_BY_POLICY) ? " (hypervisor protected)" 261 : ""); 262 263 if (err != LV1_DENIED_BY_POLICY) 264 disk_create(d, DISK_VERSION); 265 } 266 err = 0; 267 268 bioq_init(&sc->sc_bioq); 269 bioq_init(&sc->sc_deferredq); 270 kproc_create(&ps3disk_task, sc, &sc->sc_task, 0, 0, "ps3disk"); 271 272 ps3disk_sysctlattach(sc); 273 sc->sc_running = 1; 274 return (0); 275 276 fail_teardown_intr: 277 bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx); 278 fail_release_intr: 279 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq); 280 fail_free_regions: 281 free(sc->sc_reg, M_PS3DISK); 282 fail_destroy_lock: 283 PS3DISK_LOCK_DESTROY(sc); 284 return (err); 285 } 286 287 static int 288 ps3disk_detach(device_t dev) 289 { 290 struct ps3disk_softc *sc = device_get_softc(dev); 291 int i; 292 293 for (i = 0; i < sc->sc_nregs; i++) 294 disk_destroy(sc->sc_disk[i]); 295 296 bus_dma_tag_destroy(sc->sc_dmatag); 297 298 bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx); 299 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq); 300 301 free(sc->sc_disk, M_PS3DISK); 302 free(sc->sc_reg, M_PS3DISK); 303 304 PS3DISK_LOCK_DESTROY(sc); 305 306 return (0); 307 } 308 309 static int 310 ps3disk_open(struct disk *dp) 311 { 312 return (0); 313 } 314 315 static int 316 ps3disk_close(struct disk *dp) 317 { 318 return (0); 319 } 320 321 /* Process deferred blocks */ 322 static void 323 ps3disk_task(void *arg) 324 { 325 struct ps3disk_softc *sc = (struct ps3disk_softc *) arg; 326 struct bio *bp; 327 328 329 while (1) { 330 kproc_suspend_check(sc->sc_task); 331 tsleep(&sc->sc_deferredq, PRIBIO, "ps3disk", 10); 332 333 PS3DISK_LOCK(sc); 334 bp = bioq_takefirst(&sc->sc_deferredq); 335 PS3DISK_UNLOCK(sc); 336 337 if (bp == NULL) 338 continue; 339 340 if (bp->bio_driver1 != NULL) { 341 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 342 bp->bio_driver1); 343 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 344 bp->bio_driver1); 345 } 346 347 ps3disk_strategy(bp); 348 } 349 350 kproc_exit(0); 351 } 352 353 static void 354 ps3disk_strategy(struct bio *bp) 355 { 356 struct ps3disk_softc *sc = (struct ps3disk_softc *)bp->bio_disk->d_drv1; 357 int err; 358 359 if (sc == NULL) { 360 bp->bio_flags |= BIO_ERROR; 361 bp->bio_error = EINVAL; 362 biodone(bp); 363 return; 364 } 365 366 PS3DISK_LOCK(sc); 367 bp->bio_resid = bp->bio_bcount; 368 bioq_insert_tail(&sc->sc_bioq, bp); 369 370 DPRINTF(sc, PS3DISK_DEBUG_TASK, "%s: bio_cmd 0x%02x\n", 371 __func__, bp->bio_cmd); 372 373 err = 0; 374 if (bp->bio_cmd == BIO_FLUSH) { 375 bp->bio_driver1 = 0; 376 err = lv1_storage_send_device_command( 377 ps3bus_get_device(sc->sc_dev), LV1_STORAGE_ATA_HDDOUT, 378 0, 0, 0, 0, (uint64_t *)&bp->bio_driver2); 379 if (err == LV1_BUSY) 380 err = EAGAIN; 381 } else if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 382 if (bp->bio_bcount % sc->sc_blksize != 0) { 383 err = EINVAL; 384 } else { 385 bus_dmamap_create(sc->sc_dmatag, BUS_DMA_COHERENT, 386 (bus_dmamap_t *)(&bp->bio_driver1)); 387 err = bus_dmamap_load(sc->sc_dmatag, 388 (bus_dmamap_t)(bp->bio_driver1), bp->bio_data, 389 bp->bio_bcount, ps3disk_transfer, bp, 0); 390 if (err == EINPROGRESS) 391 err = 0; 392 } 393 } else { 394 err = EINVAL; 395 } 396 397 if (err == EAGAIN) { 398 bioq_remove(&sc->sc_bioq, bp); 399 bioq_insert_tail(&sc->sc_deferredq, bp); 400 } else if (err != 0) { 401 bp->bio_error = err; 402 bp->bio_flags |= BIO_ERROR; 403 bioq_remove(&sc->sc_bioq, bp); 404 disk_err(bp, "hard error", -1, 1); 405 biodone(bp); 406 } 407 408 PS3DISK_UNLOCK(sc); 409 } 410 411 static void 412 ps3disk_intr(void *arg) 413 { 414 struct ps3disk_softc *sc = (struct ps3disk_softc *) arg; 415 device_t dev = sc->sc_dev; 416 uint64_t devid = ps3bus_get_device(dev); 417 struct bio *bp; 418 uint64_t tag, status; 419 420 if (lv1_storage_get_async_status(devid, &tag, &status) != 0) 421 return; 422 423 PS3DISK_LOCK(sc); 424 425 DPRINTF(sc, PS3DISK_DEBUG_INTR, "%s: tag 0x%016lx " 426 "status 0x%016lx\n", __func__, tag, status); 427 428 /* Locate the matching request */ 429 TAILQ_FOREACH(bp, &sc->sc_bioq.queue, bio_queue) { 430 if ((uint64_t)bp->bio_driver2 != tag) 431 continue; 432 433 if (status != 0) { 434 device_printf(sc->sc_dev, "%s error (%#lx)\n", 435 (bp->bio_cmd == BIO_READ) ? "Read" : "Write", 436 status); 437 bp->bio_error = EIO; 438 bp->bio_flags |= BIO_ERROR; 439 } else { 440 bp->bio_error = 0; 441 bp->bio_resid = 0; 442 bp->bio_flags |= BIO_DONE; 443 } 444 445 if (bp->bio_driver1 != NULL) { 446 if (bp->bio_cmd == BIO_READ) 447 bus_dmamap_sync(sc->sc_dmatag, (bus_dmamap_t) 448 bp->bio_driver1, BUS_DMASYNC_POSTREAD); 449 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 450 bp->bio_driver1); 451 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 452 bp->bio_driver1); 453 } 454 455 bioq_remove(&sc->sc_bioq, bp); 456 biodone(bp); 457 break; 458 } 459 460 if (bioq_first(&sc->sc_deferredq) != NULL) 461 wakeup(&sc->sc_deferredq); 462 463 PS3DISK_UNLOCK(sc); 464 } 465 466 static int 467 ps3disk_get_disk_geometry(struct ps3disk_softc *sc) 468 { 469 device_t dev = sc->sc_dev; 470 uint64_t bus_index = ps3bus_get_busidx(dev); 471 uint64_t dev_index = ps3bus_get_devidx(dev); 472 uint64_t junk; 473 int err; 474 475 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 476 (lv1_repository_string("bus") >> 32) | bus_index, 477 lv1_repository_string("dev") | dev_index, 478 lv1_repository_string("blk_size"), 0, &sc->sc_blksize, &junk); 479 if (err) { 480 device_printf(dev, "Could not get block size (0x%08x)\n", err); 481 return (ENXIO); 482 } 483 484 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 485 (lv1_repository_string("bus") >> 32) | bus_index, 486 lv1_repository_string("dev") | dev_index, 487 lv1_repository_string("n_blocks"), 0, &sc->sc_nblocks, &junk); 488 if (err) { 489 device_printf(dev, "Could not get total number of blocks " 490 "(0x%08x)\n", err); 491 err = ENXIO; 492 } 493 494 return (err); 495 } 496 497 static int 498 ps3disk_enum_regions(struct ps3disk_softc *sc) 499 { 500 device_t dev = sc->sc_dev; 501 uint64_t bus_index = ps3bus_get_busidx(dev); 502 uint64_t dev_index = ps3bus_get_devidx(dev); 503 uint64_t junk; 504 int i, err; 505 506 /* Read number of regions */ 507 508 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 509 (lv1_repository_string("bus") >> 32) | bus_index, 510 lv1_repository_string("dev") | dev_index, 511 lv1_repository_string("n_regs"), 0, &sc->sc_nregs, &junk); 512 if (err) { 513 device_printf(dev, "Could not get number of regions (0x%08x)\n", 514 err); 515 err = ENXIO; 516 goto fail; 517 } 518 519 if (!sc->sc_nregs) 520 return 0; 521 522 sc->sc_reg = malloc(sc->sc_nregs * sizeof(struct ps3disk_region), 523 M_PS3DISK, M_ZERO | M_WAITOK); 524 if (!sc->sc_reg) { 525 err = ENOMEM; 526 goto fail; 527 } 528 529 /* Setup regions */ 530 531 for (i = 0; i < sc->sc_nregs; i++) { 532 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 533 (lv1_repository_string("bus") >> 32) | bus_index, 534 lv1_repository_string("dev") | dev_index, 535 lv1_repository_string("region") | i, 536 lv1_repository_string("id"), &sc->sc_reg[i].r_id, &junk); 537 if (err) { 538 device_printf(dev, "Could not get region id (0x%08x)\n", 539 err); 540 err = ENXIO; 541 goto fail; 542 } 543 544 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 545 (lv1_repository_string("bus") >> 32) | bus_index, 546 lv1_repository_string("dev") | dev_index, 547 lv1_repository_string("region") | i, 548 lv1_repository_string("start"), &sc->sc_reg[i].r_start, 549 &junk); 550 if (err) { 551 device_printf(dev, "Could not get region start " 552 "(0x%08x)\n", err); 553 err = ENXIO; 554 goto fail; 555 } 556 557 err = lv1_get_repository_node_value(PS3_LPAR_ID_PME, 558 (lv1_repository_string("bus") >> 32) | bus_index, 559 lv1_repository_string("dev") | dev_index, 560 lv1_repository_string("region") | i, 561 lv1_repository_string("size"), &sc->sc_reg[i].r_size, 562 &junk); 563 if (err) { 564 device_printf(dev, "Could not get region size " 565 "(0x%08x)\n", err); 566 err = ENXIO; 567 goto fail; 568 } 569 570 if (i == 0) 571 sc->sc_reg[i].r_flags = 0x2; 572 else 573 sc->sc_reg[i].r_flags = 0; 574 } 575 576 return (0); 577 578 fail: 579 580 sc->sc_nregs = 0; 581 if (sc->sc_reg) 582 free(sc->sc_reg, M_PS3DISK); 583 584 return (err); 585 } 586 587 static void 588 ps3disk_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 589 { 590 struct bio *bp = (struct bio *)(arg); 591 struct ps3disk_softc *sc = (struct ps3disk_softc *)bp->bio_disk->d_drv1; 592 struct ps3disk_region *rp = &sc->sc_reg[bp->bio_disk->d_unit]; 593 uint64_t devid = ps3bus_get_device(sc->sc_dev); 594 uint64_t block; 595 int i, err; 596 597 /* Locks already held by busdma */ 598 PS3DISK_ASSERT_LOCKED(sc); 599 600 if (error) { 601 bp->bio_error = error; 602 bp->bio_flags |= BIO_ERROR; 603 bioq_remove(&sc->sc_bioq, bp); 604 biodone(bp); 605 return; 606 } 607 608 block = bp->bio_pblkno; 609 for (i = 0; i < nsegs; i++) { 610 KASSERT((segs[i].ds_len % sc->sc_blksize) == 0, 611 ("DMA fragments not blocksize multiples")); 612 613 if (bp->bio_cmd == BIO_READ) { 614 err = lv1_storage_read(devid, rp->r_id, 615 block, segs[i].ds_len/sc->sc_blksize, 616 rp->r_flags, segs[i].ds_addr, 617 (uint64_t *)&bp->bio_driver2); 618 } else { 619 bus_dmamap_sync(sc->sc_dmatag, 620 (bus_dmamap_t)bp->bio_driver1, 621 BUS_DMASYNC_PREWRITE); 622 err = lv1_storage_write(devid, rp->r_id, 623 block, segs[i].ds_len/sc->sc_blksize, 624 rp->r_flags, segs[i].ds_addr, 625 (uint64_t *)&bp->bio_driver2); 626 } 627 628 if (err) { 629 if (err == LV1_BUSY) { 630 bioq_remove(&sc->sc_bioq, bp); 631 bioq_insert_tail(&sc->sc_deferredq, bp); 632 } else { 633 bus_dmamap_unload(sc->sc_dmatag, (bus_dmamap_t) 634 bp->bio_driver1); 635 bus_dmamap_destroy(sc->sc_dmatag, (bus_dmamap_t) 636 bp->bio_driver1); 637 device_printf(sc->sc_dev, "Could not read " 638 "sectors (0x%08x)\n", err); 639 bp->bio_error = EINVAL; 640 bp->bio_flags |= BIO_ERROR; 641 bioq_remove(&sc->sc_bioq, bp); 642 biodone(bp); 643 } 644 645 break; 646 } 647 648 DPRINTF(sc, PS3DISK_DEBUG_READ, "%s: tag 0x%016lx\n", 649 __func__, sc->sc_bounce_tag); 650 } 651 } 652 653 #ifdef PS3DISK_DEBUG 654 static int 655 ps3disk_sysctl_debug(SYSCTL_HANDLER_ARGS) 656 { 657 struct ps3disk_softc *sc = arg1; 658 int debug, error; 659 660 debug = sc->sc_debug; 661 662 error = sysctl_handle_int(oidp, &debug, 0, req); 663 if (error || !req->newptr) 664 return error; 665 666 sc->sc_debug = debug; 667 668 return 0; 669 } 670 #endif 671 672 static void 673 ps3disk_sysctlattach(struct ps3disk_softc *sc) 674 { 675 #ifdef PS3DISK_DEBUG 676 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 677 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 678 679 sc->sc_debug = ps3disk_debug; 680 681 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 682 "debug", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 683 ps3disk_sysctl_debug, "I", "control debugging printfs"); 684 #endif 685 } 686 687 static device_method_t ps3disk_methods[] = { 688 DEVMETHOD(device_probe, ps3disk_probe), 689 DEVMETHOD(device_attach, ps3disk_attach), 690 DEVMETHOD(device_detach, ps3disk_detach), 691 {0, 0}, 692 }; 693 694 static driver_t ps3disk_driver = { 695 "ps3disk", 696 ps3disk_methods, 697 sizeof(struct ps3disk_softc), 698 }; 699 700 static devclass_t ps3disk_devclass; 701 702 DRIVER_MODULE(ps3disk, ps3bus, ps3disk_driver, ps3disk_devclass, 0, 0);
Cache object: dd5ef160c3f06a4e5a6e2e3d8fba3adb
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