1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * Niagara2 Network Interface Unit (NIU) Nexus Driver 30 */ 31 32 #include <sys/conf.h> 33 #include <sys/modctl.h> 34 #include <sys/ddi_impldefs.h> 35 #include <sys/ddi_subrdefs.h> 36 #include <sys/ddi.h> 37 #include <sys/sunndi.h> 38 #include <sys/sunddi.h> 39 #include <sys/open.h> 40 #include <sys/stat.h> 41 #include <sys/file.h> 42 #include <sys/machsystm.h> 43 #include <sys/hsvc.h> 44 #include <sys/sdt.h> 45 #include <sys/hypervisor_api.h> 46 #include "niumx_var.h" 47 48 static int niumx_fm_init_child(dev_info_t *, dev_info_t *, int, 49 ddi_iblock_cookie_t *); 50 static int niumx_intr_ops(dev_info_t *dip, dev_info_t *rdip, 51 ddi_intr_op_t intr_op, ddi_intr_handle_impl_t *hdlp, void *result); 52 static int niumx_attach(dev_info_t *devi, ddi_attach_cmd_t cmd); 53 static int niumx_detach(dev_info_t *devi, ddi_detach_cmd_t cmd); 54 static int niumx_set_intr(dev_info_t *dip, dev_info_t *rdip, 55 ddi_intr_handle_impl_t *hdlp, int valid); 56 static int niumx_add_intr(dev_info_t *dip, dev_info_t *rdip, 57 ddi_intr_handle_impl_t *hdlp); 58 static int niumx_rem_intr(dev_info_t *dip, dev_info_t *rdip, 59 ddi_intr_handle_impl_t *hdlp); 60 static uint_t niumx_intr_hdlr(void *arg); 61 static int niumx_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp, 62 off_t offset, off_t len, caddr_t *addrp); 63 static int niumx_dma_allochdl(dev_info_t *dip, dev_info_t *rdip, 64 ddi_dma_attr_t *attrp, 65 int (*waitfp)(caddr_t), caddr_t arg, ddi_dma_handle_t *handlep); 66 static int niumx_dma_freehdl(dev_info_t *dip, dev_info_t *rdip, 67 ddi_dma_handle_t handlep); 68 static int niumx_dma_bindhdl(dev_info_t *dip, dev_info_t *rdip, 69 ddi_dma_handle_t handle, ddi_dma_req_t *dmareq, 70 ddi_dma_cookie_t *cookiep, uint_t *ccountp); 71 static int niumx_dma_unbindhdl(dev_info_t *dip, dev_info_t *rdip, 72 ddi_dma_handle_t handle); 73 static int niumx_ctlops(dev_info_t *dip, dev_info_t *rdip, 74 ddi_ctl_enum_t op, void *arg, void *result); 75 76 static struct bus_ops niumx_bus_ops = { 77 BUSO_REV, 78 niumx_map, 79 0, 80 0, 81 0, 82 i_ddi_map_fault, 83 0, 84 niumx_dma_allochdl, 85 niumx_dma_freehdl, 86 niumx_dma_bindhdl, 87 niumx_dma_unbindhdl, 88 0, 89 0, 90 0, 91 niumx_ctlops, 92 ddi_bus_prop_op, 93 0, /* (*bus_get_eventcookie)(); */ 94 0, /* (*bus_add_eventcall)(); */ 95 0, /* (*bus_remove_eventcall)(); */ 96 0, /* (*bus_post_event)(); */ 97 0, /* (*bus_intr_ctl)(); */ 98 0, /* (*bus_config)(); */ 99 0, /* (*bus_unconfig)(); */ 100 niumx_fm_init_child, /* (*bus_fm_init)(); */ 101 0, /* (*bus_fm_fini)(); */ 102 0, /* (*bus_enter)() */ 103 0, /* (*bus_exit)() */ 104 0, /* (*bus_power)() */ 105 niumx_intr_ops /* (*bus_intr_op)(); */ 106 }; 107 108 static struct dev_ops niumx_ops = { 109 DEVO_REV, /* devo_rev */ 110 0, /* refcnt */ 111 ddi_no_info, /* info */ 112 nulldev, /* identify */ 113 0, /* probe */ 114 niumx_attach, /* attach */ 115 niumx_detach, /* detach */ 116 nulldev, /* reset */ 117 (struct cb_ops *)0, /* driver operations */ 118 &niumx_bus_ops, /* bus operations */ 119 0 120 }; 121 122 /* Module linkage information for the kernel. */ 123 static struct modldrv modldrv = { 124 &mod_driverops, /* Type of module */ 125 "NIU Nexus Driver %I%", 126 &niumx_ops, /* driver ops */ 127 }; 128 129 static struct modlinkage modlinkage = { 130 MODREV_1, 131 (void *)&modldrv, 132 NULL 133 }; 134 135 static void *niumx_state; 136 static niumx_ih_t niumx_ihtable[NIUMX_MAX_INTRS]; 137 138 /* 139 * forward function declarations: 140 */ 141 static void niumx_removechild(dev_info_t *); 142 static int niumx_initchild(dev_info_t *child); 143 144 int 145 _init(void) 146 { 147 int e; 148 if ((e = ddi_soft_state_init(&niumx_state, sizeof (niumx_devstate_t), 149 1)) == 0 && (e = mod_install(&modlinkage)) != 0) 150 ddi_soft_state_fini(&niumx_state); 151 return (e); 152 } 153 154 int 155 _fini(void) 156 { 157 int e; 158 if ((e = mod_remove(&modlinkage)) == 0) 159 ddi_soft_state_fini(&niumx_state); 160 return (e); 161 } 162 163 int 164 _info(struct modinfo *modinfop) 165 { 166 return (mod_info(&modlinkage, modinfop)); 167 } 168 169 void 170 niumx_intr_dist(void *arg) 171 { 172 kmutex_t *lock_p = (kmutex_t *)arg; 173 int i = NIUMX_RSVD_INTRS; 174 niumx_ih_t *ih_p = niumx_ihtable + i; 175 176 DBG(DBG_A_INTX, NULL, "niumx_intr_dist entered\n"); 177 mutex_enter(lock_p); 178 for (; i < NIUMX_MAX_INTRS; i++, ih_p++) { 179 sysino_t sysino = ih_p->ih_sysino; 180 cpuid_t cpuid; 181 int intr_state; 182 if (!sysino || /* sequence is significant */ 183 (hvio_intr_getvalid(sysino, &intr_state) != H_EOK) || 184 (intr_state == HV_INTR_NOTVALID) || 185 (cpuid = intr_dist_cpuid()) == ih_p->ih_cpuid) 186 continue; 187 188 (void) hvio_intr_setvalid(sysino, HV_INTR_NOTVALID); 189 (void) hvio_intr_settarget(sysino, cpuid); 190 (void) hvio_intr_setvalid(sysino, HV_INTR_VALID); 191 ih_p->ih_cpuid = cpuid; 192 } 193 mutex_exit(lock_p); 194 } 195 196 /* 197 * Hypervisor INTR services information for the NIU nexus driver. 198 */ 199 static uint64_t niumx_intr_min_ver; /* Neg. API minor version */ 200 static hsvc_info_t niumx_hv_intr = { 201 HSVC_REV_1, NULL, HSVC_GROUP_INTR, NIUMX_INTR_MAJOR_VER, 202 NIUMX_INTR_MINOR_VER, "NIUMX" 203 }; 204 205 static int 206 niumx_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 207 { 208 int instance = ddi_get_instance(dip); 209 niumx_devstate_t *niumxds_p; /* devstate pointer */ 210 niu_regspec_t *reg_p; 211 uint_t reglen; 212 int ret = DDI_SUCCESS; 213 214 switch (cmd) { 215 case DDI_ATTACH: 216 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 217 DDI_PROP_DONTPASS, "reg", (int **)®_p, ®len) 218 != DDI_PROP_SUCCESS) { 219 DBG(DBG_ATTACH, dip, "reg lookup failed\n"); 220 ret = DDI_FAILURE; 221 goto done; 222 } 223 224 /* 225 * Allocate and get soft state structure. 226 */ 227 if (ddi_soft_state_zalloc(niumx_state, instance) 228 != DDI_SUCCESS) { 229 ret = DDI_FAILURE; 230 goto prop_free; 231 } 232 niumxds_p = (niumx_devstate_t *)ddi_get_soft_state(niumx_state, 233 instance); 234 niumxds_p->dip = dip; 235 mutex_init(&niumxds_p->niumx_mutex, NULL, MUTEX_DRIVER, NULL); 236 237 DBG(DBG_ATTACH, dip, "soft state alloc'd instance = %d, " 238 "niumxds_p = %p\n", instance, niumxds_p); 239 240 /* 241 * Negotiate the API version for HV INTR services. 242 */ 243 if ((ret = hsvc_register(&niumx_hv_intr, &niumx_intr_min_ver)) 244 != H_EOK) { 245 cmn_err(CE_WARN, "%s: cannot negotiate hypervisor services " 246 "group: 0x%lx major: 0x%lx minor: 0x%lx errno: %d\n", 247 niumx_hv_intr.hsvc_modname, niumx_hv_intr.hsvc_group, 248 niumx_hv_intr.hsvc_major, niumx_hv_intr.hsvc_minor, ret); 249 ret = DDI_FAILURE; 250 goto cleanup; 251 } 252 253 DBG(DBG_ATTACH, dip, "neg. HV API major 0x%lx minor 0x%lx\n", 254 niumx_hv_intr.hsvc_major, niumx_intr_min_ver); 255 256 /* hv devhdl: low 28-bit of 1st "reg" entry's addr.hi */ 257 niumxds_p->niumx_dev_hdl = (devhandle_t)(reg_p->addr_high & 258 NIUMX_DEVHDLE_MASK); 259 260 /* add interrupt redistribution callback */ 261 intr_dist_add(niumx_intr_dist, &niumxds_p->niumx_mutex); 262 263 niumxds_p->niumx_fm_cap = DDI_FM_EREPORT_CAPABLE; 264 265 ddi_fm_init(niumxds_p->dip, &niumxds_p->niumx_fm_cap, 266 &niumxds_p->niumx_fm_ibc); 267 268 ret = DDI_SUCCESS; 269 goto prop_free; 270 cleanup: 271 mutex_destroy(&niumxds_p->niumx_mutex); 272 ddi_soft_state_free(niumx_state, ddi_get_instance(dip)); 273 prop_free: 274 ddi_prop_free(reg_p); 275 done: 276 return (ret); 277 278 case DDI_RESUME: 279 default: 280 break; 281 } 282 return (ret); 283 } 284 285 static int 286 niumx_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 287 { 288 niumx_devstate_t *niumxds_p; 289 290 switch (cmd) { 291 case DDI_DETACH: 292 (void) hsvc_unregister(&niumx_hv_intr); 293 294 niumxds_p = (niumx_devstate_t *) 295 ddi_get_soft_state(niumx_state, ddi_get_instance(dip)); 296 297 intr_dist_rem(niumx_intr_dist, &niumxds_p->niumx_mutex); 298 ddi_fm_fini(dip); 299 mutex_destroy(&niumxds_p->niumx_mutex); 300 ddi_soft_state_free(niumx_state, ddi_get_instance(dip)); 301 return (DDI_SUCCESS); 302 303 case DDI_SUSPEND: 304 default: 305 break; 306 } 307 return (DDI_FAILURE); 308 } 309 310 311 /* 312 * Function used to initialize FMA for our children nodes. Called 313 * through pci busops when child node calls ddi_fm_init. 314 */ 315 /*ARGSUSED*/ 316 int 317 niumx_fm_init_child(dev_info_t *dip, dev_info_t *cdip, int cap, 318 ddi_iblock_cookie_t *ibc_p) 319 { 320 niumx_devstate_t *niumxds_p = DIP_TO_STATE(dip); 321 322 ASSERT(ibc_p != NULL); 323 *ibc_p = niumxds_p->niumx_fm_ibc; 324 325 return (niumxds_p->niumx_fm_cap); 326 } 327 328 329 /*ARGSUSED*/ 330 int 331 niumx_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp, 332 off_t offset, off_t len, caddr_t *vaddrp) 333 { 334 struct regspec p_regspec; 335 ddi_map_req_t p_mapreq; 336 niu_regspec_t *reg_p; 337 int i, rn = mp->map_obj.rnumber, reglen, rnglen, rngnum, ret; 338 niumx_ranges_t *rng_p; 339 340 uint32_t reg_begin, rng_begin; 341 342 DBG(DBG_MAP, dip, "%s%d: mapping %s%d reg %d\n", NAMEINST(dip), 343 NAMEINST(rdip), rn); 344 345 if (ddi_getlongprop(DDI_DEV_T_ANY, rdip, DDI_PROP_DONTPASS, 346 "reg", (caddr_t)®_p, ®len) != DDI_SUCCESS) 347 return (DDI_FAILURE); 348 349 if (rn < 0 || (rn >= reglen / sizeof (niu_regspec_t))) { 350 DBG(DBG_MAP, dip, "rnumber out of range: %d\n", rn); 351 kmem_free(reg_p, reglen); 352 return (DDI_ME_RNUMBER_RANGE); 353 } 354 355 /* build regspec up for parent */ 356 p_mapreq = *mp; /* dup the whole structure */ 357 p_mapreq.map_type = DDI_MT_REGSPEC; 358 p_mapreq.map_obj.rp = &p_regspec; 359 360 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, "ranges", 361 (caddr_t)&rng_p, &rnglen) != DDI_SUCCESS) { 362 DBG(DBG_MAP, dip, "%s%d: no ranges property\n", 363 ddi_driver_name(dip), ddi_get_instance(dip)); 364 kmem_free(reg_p, reglen); 365 return (DDI_FAILURE); 366 } 367 368 /* locate matching ranges record */ 369 rngnum = rnglen / sizeof (niumx_ranges_t); 370 for (i = 0, reg_p += rn; i < rngnum; rng_p++, i++) { 371 if (reg_p->addr_high == rng_p->child_hi) 372 break; 373 } 374 375 if (i >= rngnum) { 376 DBG(DBG_MAP, dip, "ranges record for reg[%d] not found.\n", rn); 377 ret = DDI_ME_REGSPEC_RANGE; 378 goto err; 379 } 380 381 /* 382 * validate request has matching bus type and within 4G 383 * limit by comparing addr.hi of "ranges" and child "reg". 384 */ 385 386 ASSERT(reg_p->size_high == 0); 387 388 rng_begin = rng_p->child_lo; 389 reg_begin = reg_p->addr_low; 390 /* check to verify reg bounds are within rng bounds */ 391 if (reg_begin < rng_begin || (reg_begin + (reg_p->size_low - 1)) > 392 (rng_begin + (rng_p->size_lo - 1))) { 393 DBG(DBG_MAP, dip, "size out of range for reg[%d].\n", rn); 394 ret = DDI_ME_REGSPEC_RANGE; 395 goto err; 396 } 397 398 p_regspec.regspec_bustype = rng_p->parent_hi; 399 p_regspec.regspec_addr = reg_begin - rng_begin + rng_p->parent_lo; 400 p_regspec.regspec_size = reg_p->size_low; 401 DBG(DBG_MAP, dip, "regspec:bus,addr,size = (%x,%x,%x)\n", 402 p_regspec.regspec_bustype, p_regspec.regspec_addr, 403 p_regspec.regspec_size); 404 ret = ddi_map(dip, &p_mapreq, 0, 0, vaddrp); 405 DBG(DBG_MAP, dip, "niumx_map: ret %d.\n", ret); 406 err: 407 kmem_free(rng_p - i, rnglen); 408 kmem_free(reg_p - rn, reglen); 409 return (ret); 410 } 411 412 /* 413 * niumx_ctlops 414 */ 415 int 416 niumx_ctlops(dev_info_t *dip, dev_info_t *rdip, 417 ddi_ctl_enum_t ctlop, void *arg, void *result) 418 { 419 niu_regspec_t *reg_p; 420 int reglen, totreg; 421 422 DBG(DBG_CTLOPS, dip, "niumx_ctlops ctlop=%d.\n", ctlop); 423 if (rdip == (dev_info_t *)0) 424 return (DDI_FAILURE); 425 426 switch (ctlop) { 427 case DDI_CTLOPS_REPORTDEV: 428 cmn_err(CE_NOTE, "device: %s@%s, %s%d\n", 429 ddi_node_name(rdip), ddi_get_name_addr(rdip), 430 NAMEINST(rdip)); 431 return (DDI_SUCCESS); 432 433 case DDI_CTLOPS_INITCHILD: 434 return (niumx_initchild((dev_info_t *)arg)); 435 436 case DDI_CTLOPS_UNINITCHILD: 437 niumx_removechild((dev_info_t *)arg); 438 return (DDI_SUCCESS); 439 440 case DDI_CTLOPS_REGSIZE: 441 case DDI_CTLOPS_NREGS: 442 /* fall through */ 443 break; 444 default: 445 DBG(DBG_CTLOPS, dip, "just pass to ddi_cltops.\n"); 446 return (ddi_ctlops(dip, rdip, ctlop, arg, result)); 447 } 448 449 /* REGSIZE/NREGS */ 450 451 *(int *)result = 0; 452 453 if (ddi_getlongprop(DDI_DEV_T_NONE, rdip, DDI_PROP_DONTPASS | 454 DDI_PROP_CANSLEEP, "reg", (caddr_t)®_p, ®len) 455 != DDI_SUCCESS) 456 return (DDI_FAILURE); 457 458 totreg = reglen / sizeof (niu_regspec_t); 459 if (ctlop == DDI_CTLOPS_NREGS) { 460 DBG(DBG_CTLOPS, (dev_info_t *)dip, "niumx_ctlops NREGS=%d.\n", 461 totreg); 462 *(int *)result = totreg; 463 } else if (ctlop == DDI_CTLOPS_REGSIZE) { 464 int rn; 465 rn = *(int *)arg; 466 if (rn >= totreg) { 467 kmem_free(reg_p, reglen); 468 return (DDI_FAILURE); 469 } 470 *(off_t *)result = (reg_p + rn)->size_low; 471 DBG(DBG_CTLOPS, (dev_info_t *)dip, "rn = %d, REGSIZE=%x.\n", 472 rn, *(off_t *)result); 473 } 474 475 kmem_free(reg_p, reglen); 476 return (DDI_SUCCESS); 477 } 478 479 static int 480 niumx_initchild(dev_info_t *child) 481 { 482 char name[MAXNAMELEN]; 483 niu_regspec_t *r; 484 uint_t n; 485 486 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, child, DDI_PROP_DONTPASS, 487 "reg", (int **)&r, &n) != DDI_SUCCESS) { 488 return (DDI_FAILURE); 489 } 490 (void) snprintf(name, MAXNAMELEN, "%x", (r[0].addr_high & 491 NIUMX_FUNC_NUM_MASK)); 492 ddi_prop_free(r); 493 ddi_set_name_addr(child, name); 494 return (DDI_SUCCESS); 495 } 496 497 static void 498 niumx_removechild(dev_info_t *dip) 499 { 500 ddi_set_name_addr(dip, NULL); 501 ddi_remove_minor_node(dip, NULL); 502 impl_rem_dev_props(dip); 503 } 504 505 506 507 /* 508 * bus dma alloc handle entry point: 509 */ 510 /*ARGSUSED*/ 511 int 512 niumx_dma_allochdl(dev_info_t *dip, dev_info_t *rdip, ddi_dma_attr_t *attrp, 513 int (*waitfp)(caddr_t), caddr_t arg, ddi_dma_handle_t *handlep) 514 { 515 ddi_dma_impl_t *mp; 516 int sleep = (waitfp == DDI_DMA_SLEEP) ? KM_SLEEP : KM_NOSLEEP; 517 518 DBG(DBG_DMA_ALLOCH, dip, "rdip=%s%d\n", NAMEINST(rdip)); 519 520 if (attrp->dma_attr_version != DMA_ATTR_V0) { 521 DBG(DBG_DMA_ALLOCH, (dev_info_t *)dip, "DDI_DMA_BADATTR\n"); 522 return (DDI_DMA_BADATTR); 523 } 524 525 /* Caution: we don't use zalloc to enhance performance! */ 526 if ((mp = kmem_alloc(sizeof (ddi_dma_impl_t), sleep)) == 0) { 527 DBG(DBG_DMA_ALLOCH, dip, "can't alloc ddi_dma_impl_t\n"); 528 return (DDI_FAILURE); 529 } 530 mp->dmai_rdip = rdip; 531 mp->dmai_pfnlst = NULL; 532 mp->dmai_cookie = NULL; 533 mp->dmai_fault = 0; 534 mp->dmai_fault_check = NULL; 535 mp->dmai_fault_notify = NULL; 536 537 mp->dmai_attr = *attrp; /* set requestors attr info */ 538 539 DBG(DBG_DMA_ALLOCH, dip, "mp=%p\n", mp); 540 541 *handlep = (ddi_dma_handle_t)mp; 542 return (DDI_SUCCESS); 543 } 544 545 546 /* 547 * bus dma free handle entry point: 548 */ 549 /*ARGSUSED*/ 550 int 551 niumx_dma_freehdl(dev_info_t *dip, dev_info_t *rdip, ddi_dma_handle_t handle) 552 { 553 ddi_dma_impl_t *mp = (ddi_dma_impl_t *)handle; 554 555 if (mp->dmai_cookie) 556 kmem_free(mp->dmai_cookie, sizeof (ddi_dma_cookie_t)); 557 kmem_free(mp, sizeof (ddi_dma_impl_t)); 558 559 return (DDI_SUCCESS); 560 } 561 562 563 /* 564 * bus dma bind handle entry point: 565 * 566 * check/enforce DMA type, setup pfn0 and some other key pieces 567 * of this dma request. 568 * Note: this only works with DMA_OTYP_VADDR, and makes use of the known 569 * fact that only contiguous memory blocks will be passed in. 570 * Therefore only one cookie will ever be returned. 571 * 572 * return values: 573 * DDI_DMA_NOMAPPING - can't get valid pfn0, or bad dma type 574 * DDI_DMA_NORESOURCES 575 * DDI_SUCCESS 576 * 577 * dma handle members affected (set on exit): 578 * mp->dmai_object - dmareq->dmar_object 579 * mp->dmai_rflags - dmareq->dmar_flags 580 * mp->dmai_pfn0 - 1st page pfn (if va/size pair and not shadow) 581 * mp->dmai_roffset - initialized to starting page offset 582 * mp->dmai_size - # of total pages of entire object 583 * mp->dmai_cookie - new cookie alloc'd 584 */ 585 /*ARGSUSED*/ 586 int 587 niumx_dma_bindhdl(dev_info_t *dip, dev_info_t *rdip, 588 ddi_dma_handle_t handle, ddi_dma_req_t *dmareq, 589 ddi_dma_cookie_t *cookiep, uint_t *ccountp) 590 { 591 int (*waitfp)(caddr_t) = dmareq->dmar_fp; 592 ddi_dma_impl_t *mp = (ddi_dma_impl_t *)handle; 593 ddi_dma_obj_t *dobj_p = &dmareq->dmar_object; 594 uint32_t offset; 595 pfn_t pfn0; 596 int ret; 597 598 DBG(DBG_DMA_BINDH, dip, "rdip=%s%d mp=%p dmareq=%p\n", NAMEINST(rdip), 599 mp, dmareq); 600 601 /* first check dma type */ 602 mp->dmai_rflags = dmareq->dmar_flags & DMP_DDIFLAGS | DMP_NOSYNC; 603 switch (dobj_p->dmao_type) { 604 case DMA_OTYP_VADDR: { 605 caddr_t vaddr = dobj_p->dmao_obj.virt_obj.v_addr; 606 struct as *as_p = dobj_p->dmao_obj.virt_obj.v_as; 607 struct hat *hat_p = as_p ? as_p->a_hat : kas.a_hat; 608 offset = (ulong_t)vaddr & NIUMX_PAGE_OFFSET; 609 pfn0 = hat_getpfnum(hat_p, vaddr); 610 } 611 break; 612 613 case DMA_OTYP_BUFVADDR: 614 case DMA_OTYP_PAGES: 615 case DMA_OTYP_PADDR: 616 default: 617 cmn_err(CE_WARN, "%s%d requested unsupported dma type %x", 618 NAMEINST(mp->dmai_rdip), dobj_p->dmao_type); 619 ret = DDI_DMA_NOMAPPING; 620 goto err; 621 } 622 if (pfn0 == PFN_INVALID) { 623 cmn_err(CE_WARN, "%s%d: invalid pfn0 for DMA object %p", 624 NAMEINST(dip), (void *)dobj_p); 625 ret = DDI_DMA_NOMAPPING; 626 goto err; 627 } 628 mp->dmai_object = *dobj_p; /* whole object */ 629 mp->dmai_pfn0 = (void *)pfn0; /* cache pfn0 */ 630 mp->dmai_roffset = offset; /* pg0 offset */ 631 mp->dmai_mapping = mp->dmai_roffset | NIUMX_PTOB(pfn0); 632 mp->dmai_size = mp->dmai_object.dmao_size; 633 634 DBG(DBG_DMA_BINDH, dip, "check pfn: mp=%p pfn0=%x\n", 635 mp, mp->dmai_pfn0); 636 if (!(mp->dmai_cookie = kmem_zalloc(sizeof (ddi_dma_cookie_t), 637 waitfp == DDI_DMA_SLEEP ? KM_SLEEP : KM_NOSLEEP))) { 638 ret = DDI_DMA_NORESOURCES; 639 goto err; 640 } 641 mp->dmai_cookie->dmac_laddress = mp->dmai_mapping; 642 mp->dmai_cookie->dmac_size = mp->dmai_size; 643 *ccountp = 1; 644 *cookiep = *mp->dmai_cookie; 645 DBG(DBG_DMA_BINDH, dip, "cookie %" PRIx64 "+%x, count=%d\n", 646 cookiep->dmac_address, cookiep->dmac_size, *ccountp); 647 return (DDI_DMA_MAPPED); 648 649 err: 650 DBG(DBG_DMA_BINDH, (dev_info_t *)dip, 651 "niumx_dma_bindhdl error ret=%d\n", ret); 652 return (ret); 653 } 654 655 /* 656 * bus dma unbind handle entry point: 657 */ 658 /*ARGSUSED*/ 659 int 660 niumx_dma_unbindhdl(dev_info_t *dip, dev_info_t *rdip, ddi_dma_handle_t handle) 661 { 662 ddi_dma_impl_t *mp = (ddi_dma_impl_t *)handle; 663 664 DBG(DBG_DMA_UNBINDH, dip, "rdip=%s%d, mp=%p\n", 665 ddi_driver_name(rdip), ddi_get_instance(rdip), handle); 666 if (mp->dmai_cookie) { 667 kmem_free(mp->dmai_cookie, sizeof (ddi_dma_cookie_t)); 668 mp->dmai_cookie = NULL; 669 } 670 671 return (DDI_SUCCESS); 672 } 673 674 /*ARGSUSED*/ 675 int 676 niumx_intr_ops(dev_info_t *dip, dev_info_t *rdip, ddi_intr_op_t intr_op, 677 ddi_intr_handle_impl_t *hdlp, void *result) 678 { 679 680 int ret = DDI_SUCCESS; 681 682 DBG(DBG_INTROPS, dip, "niumx_intr_ops: dip=%p rdip=%p intr_op=%x " 683 "handle=%p\n", dip, rdip, intr_op, hdlp); 684 685 switch (intr_op) { 686 687 case DDI_INTROP_SUPPORTED_TYPES: 688 *(int *)result = DDI_INTR_TYPE_FIXED; 689 break; 690 case DDI_INTROP_GETCAP: 691 *(int *)result = DDI_INTR_FLAG_LEVEL; 692 break; 693 case DDI_INTROP_SETCAP: 694 ret = DDI_ENOTSUP; 695 break; 696 case DDI_INTROP_ALLOC: 697 /* scratch1 = count, # of intrs from DDI framework */ 698 *(int *)result = hdlp->ih_scratch1; 699 break; 700 case DDI_INTROP_FREE: 701 /* Do we need to do anything here? */ 702 break; 703 case DDI_INTROP_GETPRI: 704 *(int *)result = NIUMX_DEFAULT_PIL; 705 break; 706 case DDI_INTROP_SETPRI: 707 ret = DDI_ENOTSUP; 708 break; 709 case DDI_INTROP_ADDISR: 710 ret = niumx_add_intr(dip, rdip, hdlp); 711 break; 712 case DDI_INTROP_REMISR: 713 ret = niumx_rem_intr(dip, rdip, hdlp); 714 break; 715 case DDI_INTROP_ENABLE: 716 ret = niumx_set_intr(dip, rdip, hdlp, HV_INTR_VALID); 717 break; 718 case DDI_INTROP_DISABLE: 719 ret = niumx_set_intr(dip, rdip, hdlp, HV_INTR_NOTVALID); 720 break; 721 case DDI_INTROP_SETMASK: 722 ret = DDI_ENOTSUP; 723 break; 724 case DDI_INTROP_CLRMASK: 725 ret = DDI_ENOTSUP; 726 break; 727 case DDI_INTROP_GETPENDING: 728 ret = DDI_ENOTSUP; 729 break; 730 case DDI_INTROP_NINTRS: 731 case DDI_INTROP_NAVAIL: { 732 devino_t *inos_p; 733 int inoslen; 734 if (ddi_getlongprop(DDI_DEV_T_ANY, rdip, DDI_PROP_DONTPASS, 735 "interrupts", (caddr_t)&inos_p, &inoslen) 736 != DDI_SUCCESS) { 737 ret = DDI_FAILURE; 738 break; 739 } 740 *(int *)result = inoslen / sizeof (uint32_t); 741 kmem_free(inos_p, inoslen); 742 } 743 break; 744 default: 745 ret = DDI_ENOTSUP; 746 break; 747 } 748 749 DBG(DBG_INTROPS, dip, "niumx_intr_ops: ret=%d\n", ret); 750 return (ret); 751 } 752 753 int 754 niumx_set_intr(dev_info_t *dip, dev_info_t *rdip, 755 ddi_intr_handle_impl_t *hdlp, int valid) 756 { 757 niumx_ih_t *ih_p; 758 devino_t *inos_p; 759 int inoslen, ret = DDI_SUCCESS; 760 uint64_t hvret; 761 762 ASSERT(hdlp->ih_inum < NIUMX_MAX_INTRS); 763 764 /* find the appropriate slot from the fixed table */ 765 if (ddi_getlongprop(DDI_DEV_T_ANY, rdip, DDI_PROP_DONTPASS, 766 "interrupts", (caddr_t)&inos_p, &inoslen) != DDI_SUCCESS) { 767 ret = DDI_FAILURE; 768 goto fail; 769 } 770 ih_p = niumx_ihtable + inos_p[hdlp->ih_inum]; 771 DBG(DBG_A_INTX, dip, "niumx_set_intr: rdip=%s%d, valid=%d %s (%x,%x)\n", 772 NAMEINST(rdip), valid, valid ? "enabling" : "disabling", 773 ih_p->ih_inum, ih_p->ih_sysino); 774 775 if ((hvret = hvio_intr_setvalid(ih_p->ih_sysino, valid)) 776 != H_EOK) { 777 DBG(DBG_A_INTX, dip, "hvio_intr_setvalid failed, ret 0x%x\n", 778 hvret); 779 ret = DDI_FAILURE; 780 } 781 kmem_free(inos_p, inoslen); 782 fail: 783 return (ret); 784 } 785 786 787 788 /* 789 * niumx_add_intr: 790 * 791 * This is the leaf/nexus/HV mapping, now read from "interrupts": 792 * 793 * we have a range of 64 to work with: 794 * [0-15] - reserved 795 * [16] - mac0 796 * [17] - MIF 797 * [18] - SYSERR 798 * [19-26] - func0 Rx (qty. 8) 799 * [27-34] - func0 Tx (qty. 8) 800 * [35] - mac1 801 * [36-43] - func1 Rx (qty. 8) 802 * [44-51] - func1 Tx (qty. 8) 803 */ 804 int 805 niumx_add_intr(dev_info_t *dip, dev_info_t *rdip, 806 ddi_intr_handle_impl_t *hdlp) 807 { 808 niumx_ih_t *ih_p; 809 int inoslen, ret = DDI_SUCCESS; 810 uint64_t hvret; 811 devino_t *inos_p, ino; /* INO numbers, from "interrupts" prop */ 812 sysino_t sysino; 813 814 /* get new ino */ 815 if (hdlp->ih_inum >= NIUMX_MAX_INTRS) { 816 DBG(DBG_INTR, dip, "error: inum %d out of range\n", 817 hdlp->ih_inum); 818 ret = DDI_FAILURE; 819 goto done; 820 } 821 if (ddi_getlongprop(DDI_DEV_T_ANY, rdip, DDI_PROP_DONTPASS, 822 "interrupts", (caddr_t)&inos_p, &inoslen) != DDI_SUCCESS) { 823 ret = DDI_FAILURE; 824 goto done; 825 } 826 ih_p = niumx_ihtable + inos_p[hdlp->ih_inum]; 827 ino = inos_p[hdlp->ih_inum]; 828 kmem_free(inos_p, inoslen); 829 if ((hvret = hvio_intr_devino_to_sysino(DIP_TO_HANDLE(dip), ino, 830 &sysino)) != H_EOK) { 831 DBG(DBG_INTR, dip, "hvio_intr_devino_to_sysino failed, " 832 "ret 0x%x\n", hvret); 833 ret = DDI_FAILURE; 834 goto done; 835 } 836 ih_p->ih_sysino = sysino; 837 ih_p->ih_dip = dip; 838 ih_p->ih_inum = hdlp->ih_inum; 839 ih_p->ih_hdlr = hdlp->ih_cb_func; 840 ih_p->ih_arg1 = hdlp->ih_cb_arg1; 841 ih_p->ih_arg2 = hdlp->ih_cb_arg2; 842 843 DBG(DBG_A_INTX, dip, "niumx_add_intr: rdip=%s%d inum=0x%x " 844 "handler=%p arg1=%p arg2=%p, new ih_p = %p\n", NAMEINST(rdip), 845 hdlp->ih_inum, hdlp->ih_cb_func, hdlp->ih_cb_arg1, 846 hdlp->ih_cb_arg2, ih_p); 847 848 if (hdlp->ih_pri == 0) 849 hdlp->ih_pri = NIUMX_DEFAULT_PIL; 850 851 /* Save sysino value in hdlp */ 852 hdlp->ih_vector = ih_p->ih_sysino; 853 854 /* swap in our handler & arg */ 855 DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp, (ddi_intr_handler_t *)niumx_intr_hdlr, 856 (void *)ih_p, NULL); 857 858 DBG(DBG_A_INTX, dip, "for ino %x adding (%x,%x)\n", ino, ih_p->ih_inum, 859 ih_p->ih_sysino); 860 ret = i_ddi_add_ivintr(hdlp); 861 862 /* Restore orig. interrupt handler & args in handle. */ 863 DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp, ih_p->ih_hdlr, ih_p->ih_arg1, 864 ih_p->ih_arg2); 865 866 if (ret != DDI_SUCCESS) { 867 DBG(DBG_A_INTX, dip, "i_ddi_add_ivintr error ret=%x\n", ret); 868 goto done; 869 } 870 871 /* select cpu, saving it for removal */ 872 ih_p->ih_cpuid = intr_dist_cpuid(); 873 874 if ((hvret = hvio_intr_settarget(ih_p->ih_sysino, ih_p->ih_cpuid)) 875 != H_EOK) { 876 DBG(DBG_A_INTX, dip, "hvio_intr_settarget failed, ret 0x%x\n", 877 hvret); 878 ret = DDI_FAILURE; 879 } 880 done: 881 DBG(DBG_A_INTX, dip, "done, ret = %d, ih_p 0x%p, hdlp 0x%p\n", ih_p, 882 hdlp, ret); 883 return (ret); 884 } 885 886 /* 887 * niumx_rem_intr: 888 * 889 * This function is called to unregister interrupts. 890 */ 891 int 892 niumx_rem_intr(dev_info_t *dip, dev_info_t *rdip, 893 ddi_intr_handle_impl_t *hdlp) 894 { 895 niumx_ih_t *ih_p; 896 cpuid_t curr_cpu; 897 devino_t *inos_p; 898 int inoslen, ret = DDI_SUCCESS; 899 uint64_t hvret; 900 901 ASSERT(hdlp->ih_inum < NIUMX_MAX_INTRS); 902 903 /* find the appropriate slot from the fixed table */ 904 if (ddi_getlongprop(DDI_DEV_T_ANY, rdip, DDI_PROP_DONTPASS, 905 "interrupts", (caddr_t)&inos_p, &inoslen) != DDI_SUCCESS) { 906 ret = DDI_FAILURE; 907 goto fail1; 908 } 909 ih_p = niumx_ihtable + inos_p[hdlp->ih_inum]; 910 DBG(DBG_R_INTX, dip, "removing (%x,%x)\n", ih_p->ih_inum, 911 ih_p->ih_sysino); 912 913 /* Get the current cpu */ 914 if ((hvret = hvio_intr_gettarget(ih_p->ih_sysino, &curr_cpu)) 915 != H_EOK) { 916 DBG(DBG_R_INTX, dip, "hvio_intr_gettarget failed, ret 0x%x\n", 917 hvret); 918 ret = DDI_FAILURE; 919 goto fail2; 920 } 921 922 intr_dist_cpuid_rem_device_weight(ih_p->ih_cpuid, rdip); 923 924 hdlp->ih_vector = ih_p->ih_sysino; 925 if (hdlp->ih_vector != NULL) i_ddi_rem_ivintr(hdlp); 926 927 fail2: 928 kmem_free(inos_p, inoslen); 929 fail1: 930 return (ret); 931 } 932 933 /* 934 * niumx_intr_hdlr (our interrupt handler) 935 */ 936 uint_t 937 niumx_intr_hdlr(void *arg) 938 { 939 niumx_ih_t *ih_p = (niumx_ih_t *)arg; 940 uint_t r; 941 942 DTRACE_PROBE4(interrupt__start, dev_info_t, ih_p->ih_dip, void *, 943 ih_p->ih_hdlr, caddr_t, ih_p->ih_arg1, caddr_t, ih_p->ih_arg2); 944 945 r = (*ih_p->ih_hdlr)(ih_p->ih_arg1, ih_p->ih_arg2); 946 947 DTRACE_PROBE4(interrupt__complete, dev_info_t, ih_p->ih_dip, void *, 948 ih_p->ih_hdlr, caddr_t, ih_p->ih_arg1, int, r); 949 return (r); 950 } 951 952 #ifdef DEBUG 953 uint64_t niumx_debug_flags = 0; 954 955 static char *niumx_debug_sym [] = { /* same sequence as niumx_debug_bit */ 956 /* 0 */ "attach", 957 /* 1 */ "map", 958 /* 2 */ "nex-ctlops", 959 /* 3 */ "introps", 960 /* 4 */ "intr-add", 961 /* 5 */ "intr-rem", 962 /* 6 */ "intr", 963 /* 7 */ "dma-alloc", 964 /* 8 */ "dma-bind", 965 /* 9 */ "dma-unbind", 966 /* 10 */ "chk-dma-mode" 967 }; 968 969 /*ARGSUSED*/ 970 void 971 niumx_dbg(niumx_debug_bit_t bit, dev_info_t *dip, char *fmt, ...) 972 { 973 va_list ap; 974 char msgbuf[1024]; 975 976 if (!(1ull << bit & niumx_debug_flags)) 977 return; 978 va_start(ap, fmt); 979 (void) vsprintf(msgbuf, fmt, ap); 980 va_end(ap); 981 cmn_err(CE_NOTE, "%s: %s", niumx_debug_sym[bit], msgbuf); 982 } 983 984 #endif /* DEBUG */ 985