psycho.c revision 225931
1/*- 2 * Copyright (c) 1999, 2000 Matthew R. Green 3 * Copyright (c) 2001 - 2003 by Thomas Moestl <tmm@FreeBSD.org> 4 * Copyright (c) 2005 - 2006 Marius Strobl <marius@FreeBSD.org> 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * from: NetBSD: psycho.c,v 1.39 2001/10/07 20:30:41 eeh Exp 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: head/sys/sparc64/pci/psycho.c 225931 2011-10-02 23:22:38Z marius $"); 35 36/* 37 * Support for `Hummingbird' (UltraSPARC IIe), `Psycho' and `Psycho+' 38 * (UltraSPARC II) and `Sabre' (UltraSPARC IIi) UPA to PCI bridges. 39 */ 40 41#include "opt_ofw_pci.h" 42#include "opt_psycho.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/bus.h> 47#include <sys/endian.h> 48#include <sys/kdb.h> 49#include <sys/kernel.h> 50#include <sys/lock.h> 51#include <sys/malloc.h> 52#include <sys/module.h> 53#include <sys/mutex.h> 54#include <sys/pcpu.h> 55#include <sys/reboot.h> 56#include <sys/rman.h> 57 58#include <dev/ofw/ofw_bus.h> 59#include <dev/ofw/ofw_pci.h> 60#include <dev/ofw/openfirm.h> 61 62#include <machine/bus.h> 63#include <machine/bus_common.h> 64#include <machine/bus_private.h> 65#include <machine/iommureg.h> 66#include <machine/iommuvar.h> 67#include <machine/resource.h> 68#include <machine/ver.h> 69 70#include <dev/pci/pcireg.h> 71#include <dev/pci/pcivar.h> 72 73#include <sparc64/pci/ofw_pci.h> 74#include <sparc64/pci/psychoreg.h> 75#include <sparc64/pci/psychovar.h> 76 77#include "pcib_if.h" 78 79static const struct psycho_desc *psycho_find_desc(const struct psycho_desc *, 80 const char *); 81static const struct psycho_desc *psycho_get_desc(device_t); 82static void psycho_set_intr(struct psycho_softc *, u_int, bus_addr_t, 83 driver_filter_t, driver_intr_t); 84static int psycho_find_intrmap(struct psycho_softc *, u_int, bus_addr_t *, 85 bus_addr_t *, u_long *); 86static void sabre_dmamap_sync(bus_dma_tag_t dt, bus_dmamap_t map, 87 bus_dmasync_op_t op); 88static void psycho_intr_enable(void *); 89static void psycho_intr_disable(void *); 90static void psycho_intr_assign(void *); 91static void psycho_intr_clear(void *); 92 93/* Interrupt handlers */ 94static driver_filter_t psycho_ue; 95static driver_filter_t psycho_ce; 96static driver_filter_t psycho_pci_bus; 97static driver_filter_t psycho_powerfail; 98static driver_intr_t psycho_overtemp; 99#ifdef PSYCHO_MAP_WAKEUP 100static driver_filter_t psycho_wakeup; 101#endif 102 103/* IOMMU support */ 104static void psycho_iommu_init(struct psycho_softc *, int, uint32_t); 105 106/* 107 * Methods 108 */ 109static device_probe_t psycho_probe; 110static device_attach_t psycho_attach; 111static bus_read_ivar_t psycho_read_ivar; 112static bus_setup_intr_t psycho_setup_intr; 113static bus_alloc_resource_t psycho_alloc_resource; 114static bus_activate_resource_t psycho_activate_resource; 115static bus_adjust_resource_t psycho_adjust_resource; 116static bus_get_dma_tag_t psycho_get_dma_tag; 117static pcib_maxslots_t psycho_maxslots; 118static pcib_read_config_t psycho_read_config; 119static pcib_write_config_t psycho_write_config; 120static pcib_route_interrupt_t psycho_route_interrupt; 121static ofw_bus_get_node_t psycho_get_node; 122static ofw_pci_setup_device_t psycho_setup_device; 123 124static device_method_t psycho_methods[] = { 125 /* Device interface */ 126 DEVMETHOD(device_probe, psycho_probe), 127 DEVMETHOD(device_attach, psycho_attach), 128 DEVMETHOD(device_shutdown, bus_generic_shutdown), 129 DEVMETHOD(device_suspend, bus_generic_suspend), 130 DEVMETHOD(device_resume, bus_generic_resume), 131 132 /* Bus interface */ 133 DEVMETHOD(bus_print_child, bus_generic_print_child), 134 DEVMETHOD(bus_read_ivar, psycho_read_ivar), 135 DEVMETHOD(bus_setup_intr, psycho_setup_intr), 136 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 137 DEVMETHOD(bus_alloc_resource, psycho_alloc_resource), 138 DEVMETHOD(bus_activate_resource, psycho_activate_resource), 139 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 140 DEVMETHOD(bus_adjust_resource, psycho_adjust_resource), 141 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 142 DEVMETHOD(bus_describe_intr, bus_generic_describe_intr), 143 DEVMETHOD(bus_get_dma_tag, psycho_get_dma_tag), 144 145 /* pcib interface */ 146 DEVMETHOD(pcib_maxslots, psycho_maxslots), 147 DEVMETHOD(pcib_read_config, psycho_read_config), 148 DEVMETHOD(pcib_write_config, psycho_write_config), 149 DEVMETHOD(pcib_route_interrupt, psycho_route_interrupt), 150 151 /* ofw_bus interface */ 152 DEVMETHOD(ofw_bus_get_node, psycho_get_node), 153 154 /* ofw_pci interface */ 155 DEVMETHOD(ofw_pci_setup_device, psycho_setup_device), 156 157 KOBJMETHOD_END 158}; 159 160static devclass_t psycho_devclass; 161 162DEFINE_CLASS_0(pcib, psycho_driver, psycho_methods, 163 sizeof(struct psycho_softc)); 164EARLY_DRIVER_MODULE(psycho, nexus, psycho_driver, psycho_devclass, 0, 0, 165 BUS_PASS_BUS); 166 167static SLIST_HEAD(, psycho_softc) psycho_softcs = 168 SLIST_HEAD_INITIALIZER(psycho_softcs); 169 170static const struct intr_controller psycho_ic = { 171 psycho_intr_enable, 172 psycho_intr_disable, 173 psycho_intr_assign, 174 psycho_intr_clear 175}; 176 177struct psycho_icarg { 178 struct psycho_softc *pica_sc; 179 bus_addr_t pica_map; 180 bus_addr_t pica_clr; 181}; 182 183#define PSYCHO_READ8(sc, off) \ 184 bus_read_8((sc)->sc_mem_res, (off)) 185#define PSYCHO_WRITE8(sc, off, v) \ 186 bus_write_8((sc)->sc_mem_res, (off), (v)) 187#define PCICTL_READ8(sc, off) \ 188 PSYCHO_READ8((sc), (sc)->sc_pcictl + (off)) 189#define PCICTL_WRITE8(sc, off, v) \ 190 PSYCHO_WRITE8((sc), (sc)->sc_pcictl + (off), (v)) 191 192/* 193 * "Sabre" is the UltraSPARC IIi onboard UPA to PCI bridge. It manages a 194 * single PCI bus and does not have a streaming buffer. It often has an APB 195 * (advanced PCI bridge) connected to it, which was designed specifically for 196 * the IIi. The APB let's the IIi handle two independednt PCI buses, and 197 * appears as two "Simba"'s underneath the Sabre. 198 * 199 * "Hummingbird" is the UltraSPARC IIe onboard UPA to PCI bridge. It's 200 * basically the same as Sabre but without an APB underneath it. 201 * 202 * "Psycho" and "Psycho+" are dual UPA to PCI bridges. They sit on the UPA 203 * bus and manage two PCI buses. "Psycho" has two 64-bit 33MHz buses, while 204 * "Psycho+" controls both a 64-bit 33Mhz and a 64-bit 66Mhz PCI bus. You 205 * will usually find a "Psycho+" since I don't think the original "Psycho" 206 * ever shipped, and if it did it would be in the U30. 207 * 208 * Each "Psycho" PCI bus appears as a separate OFW node, but since they are 209 * both part of the same IC, they only have a single register space. As such, 210 * they need to be configured together, even though the autoconfiguration will 211 * attach them separately. 212 * 213 * On UltraIIi machines, "Sabre" itself usually takes pci0, with "Simba" often 214 * as pci1 and pci2, although they have been implemented with other PCI bus 215 * numbers on some machines. 216 * 217 * On UltraII machines, there can be any number of "Psycho+" ICs, each 218 * providing two PCI buses. 219 */ 220 221struct psycho_desc { 222 const char *pd_string; 223 int pd_mode; 224 const char *pd_name; 225}; 226 227static const struct psycho_desc const psycho_compats[] = { 228 { "pci108e,8000", PSYCHO_MODE_PSYCHO, "Psycho compatible" }, 229 { "pci108e,a000", PSYCHO_MODE_SABRE, "Sabre compatible" }, 230 { "pci108e,a001", PSYCHO_MODE_SABRE, "Hummingbird compatible" }, 231 { NULL, 0, NULL } 232}; 233 234static const struct psycho_desc const psycho_models[] = { 235 { "SUNW,psycho", PSYCHO_MODE_PSYCHO, "Psycho" }, 236 { "SUNW,sabre", PSYCHO_MODE_SABRE, "Sabre" }, 237 { NULL, 0, NULL } 238}; 239 240static const struct psycho_desc * 241psycho_find_desc(const struct psycho_desc *table, const char *string) 242{ 243 const struct psycho_desc *desc; 244 245 if (string == NULL) 246 return (NULL); 247 for (desc = table; desc->pd_string != NULL; desc++) 248 if (strcmp(desc->pd_string, string) == 0) 249 return (desc); 250 return (NULL); 251} 252 253static const struct psycho_desc * 254psycho_get_desc(device_t dev) 255{ 256 const struct psycho_desc *rv; 257 258 rv = psycho_find_desc(psycho_models, ofw_bus_get_model(dev)); 259 if (rv == NULL) 260 rv = psycho_find_desc(psycho_compats, 261 ofw_bus_get_compat(dev)); 262 return (rv); 263} 264 265static int 266psycho_probe(device_t dev) 267{ 268 const char *dtype; 269 270 dtype = ofw_bus_get_type(dev); 271 if (dtype != NULL && strcmp(dtype, OFW_TYPE_PCI) == 0 && 272 psycho_get_desc(dev) != NULL) { 273 device_set_desc(dev, "U2P UPA-PCI bridge"); 274 return (0); 275 } 276 return (ENXIO); 277} 278 279static int 280psycho_attach(device_t dev) 281{ 282 struct psycho_icarg *pica; 283 struct psycho_softc *asc, *sc, *osc; 284 struct ofw_pci_ranges *range; 285 const struct psycho_desc *desc; 286 bus_addr_t intrclr, intrmap; 287 uint64_t csr, dr; 288 phandle_t node; 289 uint32_t dvmabase, prop, prop_array[2]; 290 u_int rerun, ver; 291 int i, j; 292 293 node = ofw_bus_get_node(dev); 294 sc = device_get_softc(dev); 295 desc = psycho_get_desc(dev); 296 297 sc->sc_node = node; 298 sc->sc_dev = dev; 299 sc->sc_mode = desc->pd_mode; 300 301 /* 302 * The Psycho gets three register banks: 303 * (0) per-PBM configuration and status registers 304 * (1) per-PBM PCI configuration space, containing only the 305 * PBM 256-byte PCI header 306 * (2) the shared Psycho configuration registers 307 */ 308 if (sc->sc_mode == PSYCHO_MODE_PSYCHO) { 309 i = 2; 310 sc->sc_pcictl = 311 bus_get_resource_start(dev, SYS_RES_MEMORY, 0) - 312 bus_get_resource_start(dev, SYS_RES_MEMORY, 2); 313 switch (sc->sc_pcictl) { 314 case PSR_PCICTL0: 315 sc->sc_half = 0; 316 break; 317 case PSR_PCICTL1: 318 sc->sc_half = 1; 319 break; 320 default: 321 panic("%s: bogus PCI control register location", 322 __func__); 323 /* NOTREACHED */ 324 } 325 } else { 326 i = 0; 327 sc->sc_pcictl = PSR_PCICTL0; 328 sc->sc_half = 0; 329 } 330 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, 331 (sc->sc_mode == PSYCHO_MODE_PSYCHO ? RF_SHAREABLE : 0) | 332 RF_ACTIVE); 333 if (sc->sc_mem_res == NULL) 334 panic("%s: could not allocate registers", __func__); 335 336 /* 337 * Match other Psychos that are already configured against 338 * the base physical address. This will be the same for a 339 * pair of devices that share register space. 340 */ 341 osc = NULL; 342 SLIST_FOREACH(asc, &psycho_softcs, sc_link) { 343 if (rman_get_start(asc->sc_mem_res) == 344 rman_get_start(sc->sc_mem_res)) { 345 /* Found partner. */ 346 osc = asc; 347 break; 348 } 349 } 350 if (osc == NULL) { 351 sc->sc_mtx = malloc(sizeof(*sc->sc_mtx), M_DEVBUF, 352 M_NOWAIT | M_ZERO); 353 if (sc->sc_mtx == NULL) 354 panic("%s: could not malloc mutex", __func__); 355 mtx_init(sc->sc_mtx, "pcib_mtx", NULL, MTX_SPIN); 356 } else { 357 if (sc->sc_mode != PSYCHO_MODE_PSYCHO) 358 panic("%s: no partner expected", __func__); 359 if (mtx_initialized(osc->sc_mtx) == 0) 360 panic("%s: mutex not initialized", __func__); 361 sc->sc_mtx = osc->sc_mtx; 362 } 363 364 csr = PSYCHO_READ8(sc, PSR_CS); 365 ver = PSYCHO_GCSR_VERS(csr); 366 sc->sc_ign = 0x1f; /* Hummingbird/Sabre IGN is always 0x1f. */ 367 if (sc->sc_mode == PSYCHO_MODE_PSYCHO) 368 sc->sc_ign = PSYCHO_GCSR_IGN(csr); 369 if (OF_getprop(node, "clock-frequency", &prop, sizeof(prop)) == -1) 370 prop = 33000000; 371 372 device_printf(dev, 373 "%s, impl %d, version %d, IGN %#x, bus %c, %dMHz\n", 374 desc->pd_name, (u_int)PSYCHO_GCSR_IMPL(csr), ver, sc->sc_ign, 375 'A' + sc->sc_half, prop / 1000 / 1000); 376 377 /* Set up the PCI control and PCI diagnostic registers. */ 378 379 csr = PCICTL_READ8(sc, PCR_CS); 380 csr &= ~PCICTL_ARB_PARK; 381 if (OF_getproplen(node, "no-bus-parking") < 0) 382 csr |= PCICTL_ARB_PARK; 383 384 /* Workarounds for version specific bugs. */ 385 dr = PCICTL_READ8(sc, PCR_DIAG); 386 switch (ver) { 387 case 0: 388 dr |= DIAG_RTRY_DIS; 389 dr &= ~DIAG_DWSYNC_DIS; 390 rerun = 0; 391 break; 392 case 1: 393 csr &= ~PCICTL_ARB_PARK; 394 dr |= DIAG_RTRY_DIS | DIAG_DWSYNC_DIS; 395 rerun = 0; 396 break; 397 default: 398 dr |= DIAG_DWSYNC_DIS; 399 dr &= ~DIAG_RTRY_DIS; 400 rerun = 1; 401 break; 402 } 403 404 csr |= PCICTL_ERRINTEN | PCICTL_ARB_4; 405 csr &= ~(PCICTL_SBHINTEN | PCICTL_WAKEUPEN); 406#ifdef PSYCHO_DEBUG 407 device_printf(dev, "PCI CSR 0x%016llx -> 0x%016llx\n", 408 (unsigned long long)PCICTL_READ8(sc, PCR_CS), 409 (unsigned long long)csr); 410#endif 411 PCICTL_WRITE8(sc, PCR_CS, csr); 412 413 dr &= ~DIAG_ISYNC_DIS; 414#ifdef PSYCHO_DEBUG 415 device_printf(dev, "PCI DR 0x%016llx -> 0x%016llx\n", 416 (unsigned long long)PCICTL_READ8(sc, PCR_DIAG), 417 (unsigned long long)dr); 418#endif 419 PCICTL_WRITE8(sc, PCR_DIAG, dr); 420 421 if (sc->sc_mode == PSYCHO_MODE_SABRE) { 422 /* Use the PROM preset for now. */ 423 csr = PCICTL_READ8(sc, PCR_TAS); 424 if (csr == 0) 425 panic("%s: Hummingbird/Sabre TAS not initialized.", 426 __func__); 427 dvmabase = (ffs(csr) - 1) << PCITAS_ADDR_SHIFT; 428 } else 429 dvmabase = -1; 430 431 /* Initialize memory and I/O rmans. */ 432 sc->sc_pci_io_rman.rm_type = RMAN_ARRAY; 433 sc->sc_pci_io_rman.rm_descr = "Psycho PCI I/O Ports"; 434 if (rman_init(&sc->sc_pci_io_rman) != 0 || 435 rman_manage_region(&sc->sc_pci_io_rman, 0, PSYCHO_IO_SIZE) != 0) 436 panic("%s: failed to set up I/O rman", __func__); 437 sc->sc_pci_mem_rman.rm_type = RMAN_ARRAY; 438 sc->sc_pci_mem_rman.rm_descr = "Psycho PCI Memory"; 439 if (rman_init(&sc->sc_pci_mem_rman) != 0 || 440 rman_manage_region(&sc->sc_pci_mem_rman, 0, PSYCHO_MEM_SIZE) != 0) 441 panic("%s: failed to set up memory rman", __func__); 442 443 i = OF_getprop_alloc(node, "ranges", sizeof(*range), (void **)&range); 444 /* 445 * Make sure that the expected ranges are present. The 446 * OFW_PCI_CS_MEM64 one is not currently used though. 447 */ 448 if (i != PSYCHO_NRANGE) 449 panic("%s: unsupported number of ranges", __func__); 450 /* 451 * Find the addresses of the various bus spaces. 452 * There should not be multiple ones of one kind. 453 * The physical start addresses of the ranges are the configuration, 454 * memory and I/O handles. 455 */ 456 for (i = 0; i < PSYCHO_NRANGE; i++) { 457 j = OFW_PCI_RANGE_CS(&range[i]); 458 if (sc->sc_pci_bh[j] != 0) 459 panic("%s: duplicate range for space %d", 460 __func__, j); 461 sc->sc_pci_bh[j] = OFW_PCI_RANGE_PHYS(&range[i]); 462 } 463 free(range, M_OFWPROP); 464 465 /* Register the softc, this is needed for paired Psychos. */ 466 SLIST_INSERT_HEAD(&psycho_softcs, sc, sc_link); 467 468 /* 469 * If we're a Hummingbird/Sabre or the first of a pair of Psychos 470 * to arrive here, do the interrupt setup and start up the IOMMU. 471 */ 472 if (osc == NULL) { 473 /* 474 * Hunt through all the interrupt mapping regs and register 475 * our interrupt controller for the corresponding interrupt 476 * vectors. We do this early in order to be able to catch 477 * stray interrupts. 478 */ 479 for (i = 0; i <= PSYCHO_MAX_INO; i++) { 480 if (psycho_find_intrmap(sc, i, &intrmap, &intrclr, 481 NULL) == 0) 482 continue; 483 pica = malloc(sizeof(*pica), M_DEVBUF, M_NOWAIT); 484 if (pica == NULL) 485 panic("%s: could not allocate interrupt " 486 "controller argument", __func__); 487 pica->pica_sc = sc; 488 pica->pica_map = intrmap; 489 pica->pica_clr = intrclr; 490#ifdef PSYCHO_DEBUG 491 /* 492 * Enable all interrupts and clear all interrupt 493 * states. This aids the debugging of interrupt 494 * routing problems. 495 */ 496 device_printf(dev, 497 "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n", 498 i, intrmap <= PSR_PCIB3_INT_MAP ? "PCI" : "OBIO", 499 (u_long)intrmap, (u_long)PSYCHO_READ8(sc, 500 intrmap), (u_long)intrclr); 501 PSYCHO_WRITE8(sc, intrmap, INTMAP_VEC(sc->sc_ign, i)); 502 PSYCHO_WRITE8(sc, intrclr, INTCLR_IDLE); 503 PSYCHO_WRITE8(sc, intrmap, 504 INTMAP_ENABLE(INTMAP_VEC(sc->sc_ign, i), 505 PCPU_GET(mid))); 506#endif 507 j = intr_controller_register(INTMAP_VEC(sc->sc_ign, 508 i), &psycho_ic, pica); 509 if (j != 0) 510 device_printf(dev, "could not register " 511 "interrupt controller for INO %d (%d)\n", 512 i, j); 513 } 514 515 if (sc->sc_mode == PSYCHO_MODE_PSYCHO) 516 sparc64_counter_init(device_get_nameunit(dev), 517 rman_get_bustag(sc->sc_mem_res), 518 rman_get_bushandle(sc->sc_mem_res), PSR_TC0); 519 520 /* 521 * Set up IOMMU and PCI configuration if we're the first 522 * of a pair of Psychos to arrive here or a Hummingbird 523 * or Sabre. 524 * 525 * We should calculate a TSB size based on amount of RAM 526 * and number of bus controllers and number and type of 527 * child devices. 528 * 529 * For the moment, 32KB should be more than enough. 530 */ 531 sc->sc_is = malloc(sizeof(*sc->sc_is), M_DEVBUF, M_NOWAIT | 532 M_ZERO); 533 if (sc->sc_is == NULL) 534 panic("%s: could not malloc IOMMU state", __func__); 535 sc->sc_is->is_flags = IOMMU_PRESERVE_PROM; 536 if (sc->sc_mode == PSYCHO_MODE_SABRE) { 537 sc->sc_dma_methods = 538 malloc(sizeof(*sc->sc_dma_methods), M_DEVBUF, 539 M_NOWAIT); 540 if (sc->sc_dma_methods == NULL) 541 panic("%s: could not malloc DMA methods", 542 __func__); 543 memcpy(sc->sc_dma_methods, &iommu_dma_methods, 544 sizeof(*sc->sc_dma_methods)); 545 sc->sc_dma_methods->dm_dmamap_sync = 546 sabre_dmamap_sync; 547 sc->sc_is->is_pmaxaddr = 548 IOMMU_MAXADDR(SABRE_IOMMU_BITS); 549 } else { 550 sc->sc_dma_methods = &iommu_dma_methods; 551 sc->sc_is->is_pmaxaddr = 552 IOMMU_MAXADDR(PSYCHO_IOMMU_BITS); 553 } 554 sc->sc_is->is_sb[0] = sc->sc_is->is_sb[1] = 0; 555 if (OF_getproplen(node, "no-streaming-cache") < 0) 556 sc->sc_is->is_sb[0] = sc->sc_pcictl + PCR_STRBUF; 557 sc->sc_is->is_flags |= (rerun != 1) ? IOMMU_RERUN_DISABLE : 0; 558 psycho_iommu_init(sc, 3, dvmabase); 559 } else { 560 /* Just copy IOMMU state, config tag and address. */ 561 sc->sc_dma_methods = &iommu_dma_methods; 562 sc->sc_is = osc->sc_is; 563 if (OF_getproplen(node, "no-streaming-cache") < 0) 564 sc->sc_is->is_sb[1] = sc->sc_pcictl + PCR_STRBUF; 565 iommu_reset(sc->sc_is); 566 } 567 568 /* Allocate our tags. */ 569 sc->sc_pci_iot = sparc64_alloc_bus_tag(NULL, rman_get_bustag( 570 sc->sc_mem_res), PCI_IO_BUS_SPACE, NULL); 571 if (sc->sc_pci_iot == NULL) 572 panic("%s: could not allocate PCI I/O tag", __func__); 573 sc->sc_pci_cfgt = sparc64_alloc_bus_tag(NULL, rman_get_bustag( 574 sc->sc_mem_res), PCI_CONFIG_BUS_SPACE, NULL); 575 if (sc->sc_pci_cfgt == NULL) 576 panic("%s: could not allocate PCI configuration space tag", 577 __func__); 578 if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, 579 sc->sc_is->is_pmaxaddr, ~0, NULL, NULL, sc->sc_is->is_pmaxaddr, 580 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_pci_dmat) != 0) 581 panic("%s: could not create PCI DMA tag", __func__); 582 /* Customize the tag. */ 583 sc->sc_pci_dmat->dt_cookie = sc->sc_is; 584 sc->sc_pci_dmat->dt_mt = sc->sc_dma_methods; 585 586 i = OF_getprop(node, "bus-range", (void *)prop_array, 587 sizeof(prop_array)); 588 if (i == -1) 589 panic("%s: could not get bus-range", __func__); 590 if (i != sizeof(prop_array)) 591 panic("%s: broken bus-range (%d)", __func__, i); 592 sc->sc_pci_secbus = prop_array[0]; 593 sc->sc_pci_subbus = prop_array[1]; 594 if (bootverbose) 595 device_printf(dev, "bus range %u to %u; PCI bus %d\n", 596 sc->sc_pci_secbus, sc->sc_pci_subbus, sc->sc_pci_secbus); 597 598 /* Clear any pending PCI error bits. */ 599 PCIB_WRITE_CONFIG(dev, sc->sc_pci_secbus, PCS_DEVICE, PCS_FUNC, 600 PCIR_STATUS, PCIB_READ_CONFIG(dev, sc->sc_pci_secbus, 601 PCS_DEVICE, PCS_FUNC, PCIR_STATUS, 2), 2); 602 PCICTL_WRITE8(sc, PCR_CS, PCICTL_READ8(sc, PCR_CS)); 603 PCICTL_WRITE8(sc, PCR_AFS, PCICTL_READ8(sc, PCR_AFS)); 604 605 if (osc == NULL) { 606 /* 607 * Establish handlers for interesting interrupts... 608 * 609 * XXX We need to remember these and remove this to support 610 * hotplug on the UPA/FHC bus. 611 * 612 * XXX Not all controllers have these, but installing them 613 * is better than trying to sort through this mess. 614 */ 615 psycho_set_intr(sc, 1, PSR_UE_INT_MAP, psycho_ue, NULL); 616 psycho_set_intr(sc, 2, PSR_CE_INT_MAP, psycho_ce, NULL); 617#ifdef DEBUGGER_ON_POWERFAIL 618 psycho_set_intr(sc, 3, PSR_POWER_INT_MAP, psycho_powerfail, 619 NULL); 620#else 621 psycho_set_intr(sc, 3, PSR_POWER_INT_MAP, NULL, 622 (driver_intr_t *)psycho_powerfail); 623#endif 624 if (sc->sc_mode == PSYCHO_MODE_PSYCHO) { 625 /* 626 * Hummingbirds/Sabres do not have the following two 627 * interrupts. 628 */ 629 630 /* 631 * The spare hardware interrupt is used for the 632 * over-temperature interrupt. 633 */ 634 psycho_set_intr(sc, 4, PSR_SPARE_INT_MAP, 635 NULL, psycho_overtemp); 636#ifdef PSYCHO_MAP_WAKEUP 637 /* 638 * psycho_wakeup() doesn't do anything useful right 639 * now. 640 */ 641 psycho_set_intr(sc, 5, PSR_PWRMGT_INT_MAP, 642 psycho_wakeup, NULL); 643#endif /* PSYCHO_MAP_WAKEUP */ 644 } 645 } 646 /* 647 * Register a PCI bus error interrupt handler according to which 648 * half this is. Hummingbird/Sabre don't have a PCI bus B error 649 * interrupt but they are also only used for PCI bus A. 650 */ 651 psycho_set_intr(sc, 0, sc->sc_half == 0 ? PSR_PCIAERR_INT_MAP : 652 PSR_PCIBERR_INT_MAP, psycho_pci_bus, NULL); 653 654 /* 655 * Set the latency timer register as this isn't always done by the 656 * firmware. 657 */ 658 PCIB_WRITE_CONFIG(dev, sc->sc_pci_secbus, PCS_DEVICE, PCS_FUNC, 659 PCIR_LATTIMER, OFW_PCI_LATENCY, 1); 660 661 for (i = PCIR_VENDOR; i < PCIR_STATUS; i += sizeof(uint16_t)) 662 le16enc(&sc->sc_pci_hpbcfg[i], bus_space_read_2( 663 sc->sc_pci_cfgt, sc->sc_pci_bh[OFW_PCI_CS_CONFIG], 664 PSYCHO_CONF_OFF(sc->sc_pci_secbus, PCS_DEVICE, 665 PCS_FUNC, i))); 666 for (i = PCIR_REVID; i <= PCIR_BIST; i += sizeof(uint8_t)) 667 sc->sc_pci_hpbcfg[i] = bus_space_read_1(sc->sc_pci_cfgt, 668 sc->sc_pci_bh[OFW_PCI_CS_CONFIG], PSYCHO_CONF_OFF( 669 sc->sc_pci_secbus, PCS_DEVICE, PCS_FUNC, i)); 670 671 ofw_bus_setup_iinfo(node, &sc->sc_pci_iinfo, sizeof(ofw_pci_intr_t)); 672 /* 673 * On E250 the interrupt map entry for the EBus bridge is wrong, 674 * causing incorrect interrupts to be assigned to some devices on 675 * the EBus. Work around it by changing our copy of the interrupt 676 * map mask to perform a full comparison of the INO. That way 677 * the interrupt map entry for the EBus bridge won't match at all 678 * and the INOs specified in the "interrupts" properties of the 679 * EBus devices will be used directly instead. 680 */ 681 if (strcmp(sparc64_model, "SUNW,Ultra-250") == 0 && 682 sc->sc_pci_iinfo.opi_imapmsk != NULL) 683 *(ofw_pci_intr_t *)(&sc->sc_pci_iinfo.opi_imapmsk[ 684 sc->sc_pci_iinfo.opi_addrc]) = INTMAP_INO_MASK; 685 686 device_add_child(dev, "pci", -1); 687 return (bus_generic_attach(dev)); 688} 689 690static void 691psycho_set_intr(struct psycho_softc *sc, u_int index, bus_addr_t intrmap, 692 driver_filter_t filt, driver_intr_t intr) 693{ 694 u_long vec; 695 int rid; 696 697 rid = index; 698 sc->sc_irq_res[index] = bus_alloc_resource_any(sc->sc_dev, 699 SYS_RES_IRQ, &rid, RF_ACTIVE); 700 if (sc->sc_irq_res[index] == NULL && intrmap >= PSR_POWER_INT_MAP) { 701 /* 702 * These interrupts aren't mandatory and not available 703 * with all controllers (not even Psychos). 704 */ 705 return; 706 } 707 if (sc->sc_irq_res[index] == NULL || 708 INTIGN(vec = rman_get_start(sc->sc_irq_res[index])) != 709 sc->sc_ign || 710 INTVEC(PSYCHO_READ8(sc, intrmap)) != vec || 711 intr_vectors[vec].iv_ic != &psycho_ic || 712 bus_setup_intr(sc->sc_dev, sc->sc_irq_res[index], 713 INTR_TYPE_MISC | INTR_BRIDGE, filt, intr, sc, 714 &sc->sc_ihand[index]) != 0) 715 panic("%s: failed to set up interrupt %d", __func__, index); 716} 717 718static int 719psycho_find_intrmap(struct psycho_softc *sc, u_int ino, 720 bus_addr_t *intrmapptr, bus_addr_t *intrclrptr, bus_addr_t *intrdiagptr) 721{ 722 bus_addr_t intrclr, intrmap; 723 uint64_t diag; 724 int found; 725 726 /* 727 * XXX we only compare INOs rather than INRs since the firmware may 728 * not provide the IGN and the IGN is constant for all devices on 729 * that PCI controller. 730 * This could cause problems for the FFB/external interrupt which 731 * has a full vector that can be set arbitrarily. 732 */ 733 734 if (ino > PSYCHO_MAX_INO) { 735 device_printf(sc->sc_dev, "out of range INO %d requested\n", 736 ino); 737 return (0); 738 } 739 740 found = 0; 741 /* Hunt through OBIO first. */ 742 diag = PSYCHO_READ8(sc, PSR_OBIO_INT_DIAG); 743 for (intrmap = PSR_SCSI_INT_MAP, intrclr = PSR_SCSI_INT_CLR; 744 intrmap <= PSR_PWRMGT_INT_MAP; intrmap += 8, intrclr += 8, 745 diag >>= 2) { 746 if (sc->sc_mode == PSYCHO_MODE_SABRE && 747 (intrmap == PSR_TIMER0_INT_MAP || 748 intrmap == PSR_TIMER1_INT_MAP || 749 intrmap == PSR_PCIBERR_INT_MAP || 750 intrmap == PSR_PWRMGT_INT_MAP)) 751 continue; 752 if (INTINO(PSYCHO_READ8(sc, intrmap)) == ino) { 753 diag &= 2; 754 found = 1; 755 break; 756 } 757 } 758 759 if (!found) { 760 diag = PSYCHO_READ8(sc, PSR_PCI_INT_DIAG); 761 /* Now do PCI interrupts. */ 762 for (intrmap = PSR_PCIA0_INT_MAP, intrclr = PSR_PCIA0_INT_CLR; 763 intrmap <= PSR_PCIB3_INT_MAP; intrmap += 8, intrclr += 32, 764 diag >>= 8) { 765 if (sc->sc_mode == PSYCHO_MODE_PSYCHO && 766 (intrmap == PSR_PCIA2_INT_MAP || 767 intrmap == PSR_PCIA3_INT_MAP)) 768 continue; 769 if (((PSYCHO_READ8(sc, intrmap) ^ ino) & 0x3c) == 0) { 770 intrclr += 8 * (ino & 3); 771 diag = (diag >> ((ino & 3) * 2)) & 2; 772 found = 1; 773 break; 774 } 775 } 776 } 777 if (intrmapptr != NULL) 778 *intrmapptr = intrmap; 779 if (intrclrptr != NULL) 780 *intrclrptr = intrclr; 781 if (intrdiagptr != NULL) 782 *intrdiagptr = diag; 783 return (found); 784} 785 786/* 787 * Interrupt handlers 788 */ 789static int 790psycho_ue(void *arg) 791{ 792 struct psycho_softc *sc = arg; 793 uint64_t afar, afsr; 794 795 afar = PSYCHO_READ8(sc, PSR_UE_AFA); 796 afsr = PSYCHO_READ8(sc, PSR_UE_AFS); 797 /* 798 * On the UltraSPARC-IIi/IIe, IOMMU misses/protection faults cause 799 * the AFAR to be set to the physical address of the TTE entry that 800 * was invalid/write protected. Call into the IOMMU code to have 801 * them decoded to virtual I/O addresses. 802 */ 803 if ((afsr & UEAFSR_P_DTE) != 0) 804 iommu_decode_fault(sc->sc_is, afar); 805 panic("%s: uncorrectable DMA error AFAR %#lx AFSR %#lx", 806 device_get_nameunit(sc->sc_dev), (u_long)afar, (u_long)afsr); 807 return (FILTER_HANDLED); 808} 809 810static int 811psycho_ce(void *arg) 812{ 813 struct psycho_softc *sc = arg; 814 uint64_t afar, afsr; 815 816 mtx_lock_spin(sc->sc_mtx); 817 afar = PSYCHO_READ8(sc, PSR_CE_AFA); 818 afsr = PSYCHO_READ8(sc, PSR_CE_AFS); 819 device_printf(sc->sc_dev, "correctable DMA error AFAR %#lx " 820 "AFSR %#lx\n", (u_long)afar, (u_long)afsr); 821 /* Clear the error bits that we caught. */ 822 PSYCHO_WRITE8(sc, PSR_CE_AFS, afsr); 823 mtx_unlock_spin(sc->sc_mtx); 824 return (FILTER_HANDLED); 825} 826 827static int 828psycho_pci_bus(void *arg) 829{ 830 struct psycho_softc *sc = arg; 831 uint64_t afar, afsr; 832 833 afar = PCICTL_READ8(sc, PCR_AFA); 834 afsr = PCICTL_READ8(sc, PCR_AFS); 835 panic("%s: PCI bus %c error AFAR %#lx AFSR %#lx", 836 device_get_nameunit(sc->sc_dev), 'A' + sc->sc_half, (u_long)afar, 837 (u_long)afsr); 838 return (FILTER_HANDLED); 839} 840 841static int 842psycho_powerfail(void *arg) 843{ 844#ifdef DEBUGGER_ON_POWERFAIL 845 struct psycho_softc *sc = arg; 846 847 kdb_enter(KDB_WHY_POWERFAIL, "powerfail"); 848#else 849 static int shutdown; 850 851 /* As the interrupt is cleared we may be called multiple times. */ 852 if (shutdown != 0) 853 return (FILTER_HANDLED); 854 shutdown++; 855 printf("Power Failure Detected: Shutting down NOW.\n"); 856 shutdown_nice(0); 857#endif 858 return (FILTER_HANDLED); 859} 860 861static void 862psycho_overtemp(void *arg) 863{ 864 static int shutdown; 865 866 /* As the interrupt is cleared we may be called multiple times. */ 867 if (shutdown != 0) 868 return; 869 shutdown++; 870 printf("DANGER: OVER TEMPERATURE detected.\nShutting down NOW.\n"); 871 shutdown_nice(RB_POWEROFF); 872} 873 874#ifdef PSYCHO_MAP_WAKEUP 875static int 876psycho_wakeup(void *arg) 877{ 878 struct psycho_softc *sc = arg; 879 880 /* We don't really have a framework to deal with this properly. */ 881 device_printf(sc->sc_dev, "power management wakeup\n"); 882 return (FILTER_HANDLED); 883} 884#endif /* PSYCHO_MAP_WAKEUP */ 885 886static void 887psycho_iommu_init(struct psycho_softc *sc, int tsbsize, uint32_t dvmabase) 888{ 889 struct iommu_state *is = sc->sc_is; 890 891 /* Punch in our copies. */ 892 is->is_bustag = rman_get_bustag(sc->sc_mem_res); 893 is->is_bushandle = rman_get_bushandle(sc->sc_mem_res); 894 is->is_iommu = PSR_IOMMU; 895 is->is_dtag = PSR_IOMMU_TLB_TAG_DIAG; 896 is->is_ddram = PSR_IOMMU_TLB_DATA_DIAG; 897 is->is_dqueue = PSR_IOMMU_QUEUE_DIAG; 898 is->is_dva = PSR_IOMMU_SVADIAG; 899 is->is_dtcmp = PSR_IOMMU_TLB_CMP_DIAG; 900 901 iommu_init(device_get_nameunit(sc->sc_dev), is, tsbsize, dvmabase, 0); 902} 903 904static int 905psycho_maxslots(device_t dev) 906{ 907 908 /* XXX: is this correct? */ 909 return (PCI_SLOTMAX); 910} 911 912static uint32_t 913psycho_read_config(device_t dev, u_int bus, u_int slot, u_int func, u_int reg, 914 int width) 915{ 916 struct psycho_softc *sc; 917 bus_space_handle_t bh; 918 u_long offset = 0; 919 uint8_t byte; 920 uint16_t shrt; 921 uint32_t r, wrd; 922 int i; 923 924 sc = device_get_softc(dev); 925 if (bus < sc->sc_pci_secbus || bus > sc->sc_pci_subbus || 926 slot > PCI_SLOTMAX || func > PCI_FUNCMAX || reg > PCI_REGMAX) 927 return (-1); 928 929 bh = sc->sc_pci_bh[OFW_PCI_CS_CONFIG]; 930 931 /* 932 * The Hummingbird and Sabre bridges are picky in that they 933 * only allow their config space to be accessed using the 934 * "native" width of the respective register being accessed 935 * and return semi-random other content of their config space 936 * otherwise. Given that the PCI specs don't say anything 937 * about such a (unusual) limitation and lots of stuff expects 938 * to be able to access the contents of the config space at 939 * any width we allow just that. We do this by using a copy 940 * of the header of the bridge (the rest is all zero anyway) 941 * read during attach (expect for PCIR_STATUS) in order to 942 * simplify things. 943 * The Psycho bridges contain a dupe of their header at 0x80 944 * which we nullify that way also. 945 */ 946 if (bus == sc->sc_pci_secbus && slot == PCS_DEVICE && 947 func == PCS_FUNC) { 948 if (offset % width != 0) 949 return (-1); 950 951 if (reg >= sizeof(sc->sc_pci_hpbcfg)) 952 return (0); 953 954 if ((reg < PCIR_STATUS && reg + width > PCIR_STATUS) || 955 reg == PCIR_STATUS || reg == PCIR_STATUS + 1) 956 le16enc(&sc->sc_pci_hpbcfg[PCIR_STATUS], 957 bus_space_read_2(sc->sc_pci_cfgt, bh, 958 PSYCHO_CONF_OFF(sc->sc_pci_secbus, 959 PCS_DEVICE, PCS_FUNC, PCIR_STATUS))); 960 961 switch (width) { 962 case 1: 963 return (sc->sc_pci_hpbcfg[reg]); 964 case 2: 965 return (le16dec(&sc->sc_pci_hpbcfg[reg])); 966 case 4: 967 return (le32dec(&sc->sc_pci_hpbcfg[reg])); 968 } 969 } 970 971 offset = PSYCHO_CONF_OFF(bus, slot, func, reg); 972 switch (width) { 973 case 1: 974 i = bus_space_peek_1(sc->sc_pci_cfgt, bh, offset, &byte); 975 r = byte; 976 break; 977 case 2: 978 i = bus_space_peek_2(sc->sc_pci_cfgt, bh, offset, &shrt); 979 r = shrt; 980 break; 981 case 4: 982 i = bus_space_peek_4(sc->sc_pci_cfgt, bh, offset, &wrd); 983 r = wrd; 984 break; 985 default: 986 panic("%s: bad width", __func__); 987 /* NOTREACHED */ 988 } 989 990 if (i) { 991#ifdef PSYCHO_DEBUG 992 printf("%s: read data error reading: %d.%d.%d: 0x%x\n", 993 __func__, bus, slot, func, reg); 994#endif 995 r = -1; 996 } 997 return (r); 998} 999 1000static void 1001psycho_write_config(device_t dev, u_int bus, u_int slot, u_int func, 1002 u_int reg, uint32_t val, int width) 1003{ 1004 struct psycho_softc *sc; 1005 bus_space_handle_t bh; 1006 u_long offset = 0; 1007 1008 sc = device_get_softc(dev); 1009 if (bus < sc->sc_pci_secbus || bus > sc->sc_pci_subbus || 1010 slot > PCI_SLOTMAX || func > PCI_FUNCMAX || reg > PCI_REGMAX) 1011 return; 1012 1013 offset = PSYCHO_CONF_OFF(bus, slot, func, reg); 1014 bh = sc->sc_pci_bh[OFW_PCI_CS_CONFIG]; 1015 switch (width) { 1016 case 1: 1017 bus_space_write_1(sc->sc_pci_cfgt, bh, offset, val); 1018 break; 1019 case 2: 1020 bus_space_write_2(sc->sc_pci_cfgt, bh, offset, val); 1021 break; 1022 case 4: 1023 bus_space_write_4(sc->sc_pci_cfgt, bh, offset, val); 1024 break; 1025 default: 1026 panic("%s: bad width", __func__); 1027 /* NOTREACHED */ 1028 } 1029} 1030 1031static int 1032psycho_route_interrupt(device_t bridge, device_t dev, int pin) 1033{ 1034 struct psycho_softc *sc; 1035 struct ofw_pci_register reg; 1036 bus_addr_t intrmap; 1037 ofw_pci_intr_t pintr, mintr; 1038 uint8_t maskbuf[sizeof(reg) + sizeof(pintr)]; 1039 1040 sc = device_get_softc(bridge); 1041 pintr = pin; 1042 if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), &sc->sc_pci_iinfo, 1043 ®, sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr), 1044 NULL, maskbuf)) 1045 return (mintr); 1046 /* 1047 * If this is outside of the range for an intpin, it's likely a full 1048 * INO, and no mapping is required at all; this happens on the U30, 1049 * where there's no interrupt map at the Psycho node. Fortunately, 1050 * there seem to be no INOs in the intpin range on this boxen, so 1051 * this easy heuristics will do. 1052 */ 1053 if (pin > 4) 1054 return (pin); 1055 /* 1056 * Guess the INO; we always assume that this is a non-OBIO 1057 * device, and that pin is a "real" intpin number. Determine 1058 * the mapping register to be used by the slot number. 1059 * We only need to do this on E450s, it seems; here, the slot numbers 1060 * for bus A are one-based, while those for bus B seemingly have an 1061 * offset of 2 (hence the factor of 3 below). 1062 */ 1063 intrmap = PSR_PCIA0_INT_MAP + 1064 8 * (pci_get_slot(dev) - 1 + 3 * sc->sc_half); 1065 mintr = INTINO(PSYCHO_READ8(sc, intrmap)) + pin - 1; 1066 device_printf(bridge, 1067 "guessing interrupt %d for device %d.%d pin %d\n", 1068 (int)mintr, pci_get_slot(dev), pci_get_function(dev), pin); 1069 return (mintr); 1070} 1071 1072static int 1073psycho_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 1074{ 1075 struct psycho_softc *sc; 1076 1077 sc = device_get_softc(dev); 1078 switch (which) { 1079 case PCIB_IVAR_DOMAIN: 1080 *result = device_get_unit(dev); 1081 return (0); 1082 case PCIB_IVAR_BUS: 1083 *result = sc->sc_pci_secbus; 1084 return (0); 1085 } 1086 return (ENOENT); 1087} 1088 1089static void 1090sabre_dmamap_sync(bus_dma_tag_t dt, bus_dmamap_t map, bus_dmasync_op_t op) 1091{ 1092 struct iommu_state *is = dt->dt_cookie; 1093 1094 if ((map->dm_flags & DMF_LOADED) == 0) 1095 return; 1096 1097 if ((op & BUS_DMASYNC_POSTREAD) != 0) 1098 (void)bus_space_read_8(is->is_bustag, is->is_bushandle, 1099 PSR_DMA_WRITE_SYNC); 1100 1101 if ((op & BUS_DMASYNC_PREWRITE) != 0) 1102 membar(Sync); 1103} 1104 1105static void 1106psycho_intr_enable(void *arg) 1107{ 1108 struct intr_vector *iv = arg; 1109 struct psycho_icarg *pica = iv->iv_icarg; 1110 1111 PSYCHO_WRITE8(pica->pica_sc, pica->pica_map, 1112 INTMAP_ENABLE(iv->iv_vec, iv->iv_mid)); 1113} 1114 1115static void 1116psycho_intr_disable(void *arg) 1117{ 1118 struct intr_vector *iv = arg; 1119 struct psycho_icarg *pica = iv->iv_icarg; 1120 1121 PSYCHO_WRITE8(pica->pica_sc, pica->pica_map, iv->iv_vec); 1122} 1123 1124static void 1125psycho_intr_assign(void *arg) 1126{ 1127 struct intr_vector *iv = arg; 1128 struct psycho_icarg *pica = iv->iv_icarg; 1129 1130 PSYCHO_WRITE8(pica->pica_sc, pica->pica_map, INTMAP_TID( 1131 PSYCHO_READ8(pica->pica_sc, pica->pica_map), iv->iv_mid)); 1132} 1133 1134static void 1135psycho_intr_clear(void *arg) 1136{ 1137 struct intr_vector *iv = arg; 1138 struct psycho_icarg *pica = iv->iv_icarg; 1139 1140 PSYCHO_WRITE8(pica->pica_sc, pica->pica_clr, INTCLR_IDLE); 1141} 1142 1143static int 1144psycho_setup_intr(device_t dev, device_t child, struct resource *ires, 1145 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, 1146 void **cookiep) 1147{ 1148 struct psycho_softc *sc; 1149 u_long vec; 1150 1151 sc = device_get_softc(dev); 1152 /* 1153 * Make sure the vector is fully specified and we registered 1154 * our interrupt controller for it. 1155 */ 1156 vec = rman_get_start(ires); 1157 if (INTIGN(vec) != sc->sc_ign || 1158 intr_vectors[vec].iv_ic != &psycho_ic) { 1159 device_printf(dev, "invalid interrupt vector 0x%lx\n", vec); 1160 return (EINVAL); 1161 } 1162 return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr, 1163 arg, cookiep)); 1164} 1165 1166static struct resource * 1167psycho_alloc_resource(device_t bus, device_t child, int type, int *rid, 1168 u_long start, u_long end, u_long count, u_int flags) 1169{ 1170 struct psycho_softc *sc; 1171 struct resource *rv; 1172 struct rman *rm; 1173 1174 sc = device_get_softc(bus); 1175 switch (type) { 1176 case SYS_RES_IRQ: 1177 /* 1178 * XXX: Don't accept blank ranges for now, only single 1179 * interrupts. The other case should not happen with 1180 * the MI PCI code... 1181 * XXX: This may return a resource that is out of the 1182 * range that was specified. Is this correct...? 1183 */ 1184 if (start != end) 1185 panic("%s: XXX: interrupt range", __func__); 1186 start = end = INTMAP_VEC(sc->sc_ign, end); 1187 return (bus_generic_alloc_resource(bus, child, type, rid, 1188 start, end, count, flags)); 1189 case SYS_RES_MEMORY: 1190 rm = &sc->sc_pci_mem_rman; 1191 break; 1192 case SYS_RES_IOPORT: 1193 rm = &sc->sc_pci_io_rman; 1194 break; 1195 default: 1196 return (NULL); 1197 } 1198 1199 rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 1200 child); 1201 if (rv == NULL) 1202 return (NULL); 1203 rman_set_rid(rv, *rid); 1204 1205 if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type, 1206 *rid, rv) != 0) { 1207 rman_release_resource(rv); 1208 return (NULL); 1209 } 1210 return (rv); 1211} 1212 1213static int 1214psycho_activate_resource(device_t bus, device_t child, int type, int rid, 1215 struct resource *r) 1216{ 1217 struct psycho_softc *sc; 1218 struct bus_space_tag *tag; 1219 1220 sc = device_get_softc(bus); 1221 switch (type) { 1222 case SYS_RES_IRQ: 1223 return (bus_generic_activate_resource(bus, child, type, rid, 1224 r)); 1225 case SYS_RES_MEMORY: 1226 tag = sparc64_alloc_bus_tag(r, rman_get_bustag( 1227 sc->sc_mem_res), PCI_MEMORY_BUS_SPACE, NULL); 1228 if (tag == NULL) 1229 return (ENOMEM); 1230 rman_set_bustag(r, tag); 1231 rman_set_bushandle(r, sc->sc_pci_bh[OFW_PCI_CS_MEM32] + 1232 rman_get_start(r)); 1233 break; 1234 case SYS_RES_IOPORT: 1235 rman_set_bustag(r, sc->sc_pci_iot); 1236 rman_set_bushandle(r, sc->sc_pci_bh[OFW_PCI_CS_IO] + 1237 rman_get_start(r)); 1238 break; 1239 } 1240 return (rman_activate_resource(r)); 1241} 1242 1243static int 1244psycho_adjust_resource(device_t bus, device_t child, int type, 1245 struct resource *r, u_long start, u_long end) 1246{ 1247 struct psycho_softc *sc; 1248 struct rman *rm; 1249 1250 sc = device_get_softc(bus); 1251 switch (type) { 1252 case SYS_RES_IRQ: 1253 return (bus_generic_adjust_resource(bus, child, type, r, 1254 start, end)); 1255 case SYS_RES_MEMORY: 1256 rm = &sc->sc_pci_mem_rman; 1257 break; 1258 case SYS_RES_IOPORT: 1259 rm = &sc->sc_pci_io_rman; 1260 break; 1261 default: 1262 return (EINVAL); 1263 } 1264 if (rman_is_region_manager(r, rm) == 0) 1265 return (EINVAL); 1266 return (rman_adjust_resource(r, start, end)); 1267} 1268 1269static bus_dma_tag_t 1270psycho_get_dma_tag(device_t bus, device_t child __unused) 1271{ 1272 struct psycho_softc *sc; 1273 1274 sc = device_get_softc(bus); 1275 return (sc->sc_pci_dmat); 1276} 1277 1278static phandle_t 1279psycho_get_node(device_t bus, device_t child __unused) 1280{ 1281 struct psycho_softc *sc; 1282 1283 sc = device_get_softc(bus); 1284 /* We only have one child, the PCI bus, which needs our own node. */ 1285 return (sc->sc_node); 1286} 1287 1288static void 1289psycho_setup_device(device_t bus, device_t child) 1290{ 1291 struct psycho_softc *sc; 1292 uint32_t rev; 1293 1294 sc = device_get_softc(bus); 1295 /* 1296 * Revision 0 EBus bridges have a bug which prevents them from 1297 * working when bus parking is enabled. 1298 */ 1299 if ((strcmp(ofw_bus_get_name(child), "ebus") == 0 || 1300 strcmp(ofw_bus_get_name(child), "pci108e,1000") == 0) && 1301 OF_getprop(ofw_bus_get_node(child), "revision-id", &rev, 1302 sizeof(rev)) > 0 && rev == 0) 1303 PCICTL_WRITE8(sc, PCR_CS, PCICTL_READ8(sc, PCR_CS) & 1304 ~PCICTL_ARB_PARK); 1305} 1306