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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/kmem.h> 31 #include <sys/conf.h> 32 #include <sys/ddi.h> 33 #include <sys/sunddi.h> 34 #include <sys/fm/protocol.h> 35 #include <sys/fm/util.h> 36 #include <sys/modctl.h> 37 #include <sys/disp.h> 38 #include <sys/stat.h> 39 #include <sys/ddi_impldefs.h> 40 #include <sys/vmem.h> 41 #include <sys/iommutsb.h> 42 #include <sys/cpuvar.h> 43 #include <sys/ivintr.h> 44 #include <sys/byteorder.h> 45 #include <px_obj.h> 46 #include <pcie_pwr.h> 47 #include <px_regs.h> 48 #include <px_csr.h> 49 #include <sys/machsystm.h> 50 #include "px_lib4u.h" 51 #include "px_err.h" 52 53 #pragma weak jbus_stst_order 54 55 extern void jbus_stst_order(); 56 57 ulong_t px_mmu_dvma_end = 0xfffffffful; 58 uint_t px_ranges_phi_mask = 0xfffffffful; 59 60 static int px_goto_l23ready(px_t *px_p); 61 static int px_goto_l0(px_t *px_p); 62 static int px_pre_pwron_check(px_t *px_p); 63 static uint32_t px_identity_chip(px_t *px_p); 64 static boolean_t px_cpr_callb(void *arg, int code); 65 66 /* 67 * px_lib_map_registers 68 * 69 * This function is called from the attach routine to map the registers 70 * accessed by this driver. 71 * 72 * used by: px_attach() 73 * 74 * return value: DDI_FAILURE on failure 75 */ 76 int 77 px_lib_map_regs(pxu_t *pxu_p, dev_info_t *dip) 78 { 79 ddi_device_acc_attr_t attr; 80 px_reg_bank_t reg_bank = PX_REG_CSR; 81 82 DBG(DBG_ATTACH, dip, "px_lib_map_regs: pxu_p:0x%p, dip 0x%p\n", 83 pxu_p, dip); 84 85 attr.devacc_attr_version = DDI_DEVICE_ATTR_V0; 86 attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; 87 attr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC; 88 89 /* 90 * PCI CSR Base 91 */ 92 if (ddi_regs_map_setup(dip, reg_bank, &pxu_p->px_address[reg_bank], 93 0, 0, &attr, &pxu_p->px_ac[reg_bank]) != DDI_SUCCESS) { 94 goto fail; 95 } 96 97 reg_bank++; 98 99 /* 100 * XBUS CSR Base 101 */ 102 if (ddi_regs_map_setup(dip, reg_bank, &pxu_p->px_address[reg_bank], 103 0, 0, &attr, &pxu_p->px_ac[reg_bank]) != DDI_SUCCESS) { 104 goto fail; 105 } 106 107 pxu_p->px_address[reg_bank] -= FIRE_CONTROL_STATUS; 108 109 done: 110 for (; reg_bank >= PX_REG_CSR; reg_bank--) { 111 DBG(DBG_ATTACH, dip, "reg_bank 0x%x address 0x%p\n", 112 reg_bank, pxu_p->px_address[reg_bank]); 113 } 114 115 return (DDI_SUCCESS); 116 117 fail: 118 cmn_err(CE_WARN, "%s%d: unable to map reg entry %d\n", 119 ddi_driver_name(dip), ddi_get_instance(dip), reg_bank); 120 121 for (reg_bank--; reg_bank >= PX_REG_CSR; reg_bank--) { 122 pxu_p->px_address[reg_bank] = NULL; 123 ddi_regs_map_free(&pxu_p->px_ac[reg_bank]); 124 } 125 126 return (DDI_FAILURE); 127 } 128 129 /* 130 * px_lib_unmap_regs: 131 * 132 * This routine unmaps the registers mapped by map_px_registers. 133 * 134 * used by: px_detach(), and error conditions in px_attach() 135 * 136 * return value: none 137 */ 138 void 139 px_lib_unmap_regs(pxu_t *pxu_p) 140 { 141 int i; 142 143 for (i = 0; i < PX_REG_MAX; i++) { 144 if (pxu_p->px_ac[i]) 145 ddi_regs_map_free(&pxu_p->px_ac[i]); 146 } 147 } 148 149 int 150 px_lib_dev_init(dev_info_t *dip, devhandle_t *dev_hdl) 151 { 152 px_t *px_p = DIP_TO_STATE(dip); 153 caddr_t xbc_csr_base, csr_base; 154 px_dvma_range_prop_t px_dvma_range; 155 uint32_t chip_id; 156 pxu_t *pxu_p; 157 158 DBG(DBG_ATTACH, dip, "px_lib_dev_init: dip 0x%p\n", dip); 159 160 if ((chip_id = px_identity_chip(px_p)) == PX_CHIP_UNIDENTIFIED) 161 return (DDI_FAILURE); 162 163 switch (chip_id) { 164 case FIRE_VER_10: 165 cmn_err(CE_WARN, "FIRE Hardware Version 1.0 is not supported"); 166 return (DDI_FAILURE); 167 case FIRE_VER_20: 168 DBG(DBG_ATTACH, dip, "FIRE Hardware Version 2.0\n"); 169 break; 170 default: 171 cmn_err(CE_WARN, "%s%d: FIRE Hardware Version Unknown\n", 172 ddi_driver_name(dip), ddi_get_instance(dip)); 173 return (DDI_FAILURE); 174 } 175 176 /* 177 * Allocate platform specific structure and link it to 178 * the px state structure. 179 */ 180 pxu_p = kmem_zalloc(sizeof (pxu_t), KM_SLEEP); 181 pxu_p->chip_id = chip_id; 182 pxu_p->portid = ddi_getprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 183 "portid", -1); 184 185 /* Map in the registers */ 186 if (px_lib_map_regs(pxu_p, dip) == DDI_FAILURE) { 187 kmem_free(pxu_p, sizeof (pxu_t)); 188 189 return (DDI_FAILURE); 190 } 191 192 xbc_csr_base = (caddr_t)pxu_p->px_address[PX_REG_XBC]; 193 csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR]; 194 195 pxu_p->tsb_cookie = iommu_tsb_alloc(pxu_p->portid); 196 pxu_p->tsb_size = iommu_tsb_cookie_to_size(pxu_p->tsb_cookie); 197 pxu_p->tsb_vaddr = iommu_tsb_cookie_to_va(pxu_p->tsb_cookie); 198 199 /* 200 * Create "virtual-dma" property to support child devices 201 * needing to know DVMA range. 202 */ 203 px_dvma_range.dvma_base = (uint32_t)px_mmu_dvma_end + 1 204 - ((pxu_p->tsb_size >> 3) << MMU_PAGE_SHIFT); 205 px_dvma_range.dvma_len = (uint32_t) 206 px_mmu_dvma_end - px_dvma_range.dvma_base + 1; 207 208 (void) ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP, 209 "virtual-dma", (caddr_t)&px_dvma_range, 210 sizeof (px_dvma_range_prop_t)); 211 /* 212 * Initilize all fire hardware specific blocks. 213 */ 214 hvio_cb_init(xbc_csr_base, pxu_p); 215 hvio_ib_init(csr_base, pxu_p); 216 hvio_pec_init(csr_base, pxu_p); 217 hvio_mmu_init(csr_base, pxu_p); 218 219 px_p->px_plat_p = (void *)pxu_p; 220 221 /* 222 * Initialize all the interrupt handlers 223 */ 224 px_err_reg_enable(px_p, PX_ERR_JBC); 225 px_err_reg_enable(px_p, PX_ERR_MMU); 226 px_err_reg_enable(px_p, PX_ERR_IMU); 227 px_err_reg_enable(px_p, PX_ERR_TLU_UE); 228 px_err_reg_enable(px_p, PX_ERR_TLU_CE); 229 px_err_reg_enable(px_p, PX_ERR_TLU_OE); 230 px_err_reg_enable(px_p, PX_ERR_ILU); 231 px_err_reg_enable(px_p, PX_ERR_LPU_LINK); 232 px_err_reg_enable(px_p, PX_ERR_LPU_PHY); 233 px_err_reg_enable(px_p, PX_ERR_LPU_RX); 234 px_err_reg_enable(px_p, PX_ERR_LPU_TX); 235 px_err_reg_enable(px_p, PX_ERR_LPU_LTSSM); 236 px_err_reg_enable(px_p, PX_ERR_LPU_GIGABLZ); 237 238 /* Initilize device handle */ 239 *dev_hdl = (devhandle_t)csr_base; 240 241 DBG(DBG_ATTACH, dip, "px_lib_dev_init: dev_hdl 0x%llx\n", *dev_hdl); 242 243 return (DDI_SUCCESS); 244 } 245 246 int 247 px_lib_dev_fini(dev_info_t *dip) 248 { 249 px_t *px_p = DIP_TO_STATE(dip); 250 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 251 252 DBG(DBG_DETACH, dip, "px_lib_dev_fini: dip 0x%p\n", dip); 253 254 /* 255 * Deinitialize all the interrupt handlers 256 */ 257 px_err_reg_disable(px_p, PX_ERR_JBC); 258 px_err_reg_disable(px_p, PX_ERR_MMU); 259 px_err_reg_disable(px_p, PX_ERR_IMU); 260 px_err_reg_disable(px_p, PX_ERR_TLU_UE); 261 px_err_reg_disable(px_p, PX_ERR_TLU_CE); 262 px_err_reg_disable(px_p, PX_ERR_TLU_OE); 263 px_err_reg_disable(px_p, PX_ERR_ILU); 264 px_err_reg_disable(px_p, PX_ERR_LPU_LINK); 265 px_err_reg_disable(px_p, PX_ERR_LPU_PHY); 266 px_err_reg_disable(px_p, PX_ERR_LPU_RX); 267 px_err_reg_disable(px_p, PX_ERR_LPU_TX); 268 px_err_reg_disable(px_p, PX_ERR_LPU_LTSSM); 269 px_err_reg_disable(px_p, PX_ERR_LPU_GIGABLZ); 270 271 iommu_tsb_free(pxu_p->tsb_cookie); 272 273 px_lib_unmap_regs((pxu_t *)px_p->px_plat_p); 274 kmem_free(px_p->px_plat_p, sizeof (pxu_t)); 275 px_p->px_plat_p = NULL; 276 277 return (DDI_SUCCESS); 278 } 279 280 /*ARGSUSED*/ 281 int 282 px_lib_intr_devino_to_sysino(dev_info_t *dip, devino_t devino, 283 sysino_t *sysino) 284 { 285 px_t *px_p = DIP_TO_STATE(dip); 286 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 287 uint64_t ret; 288 289 DBG(DBG_LIB_INT, dip, "px_lib_intr_devino_to_sysino: dip 0x%p " 290 "devino 0x%x\n", dip, devino); 291 292 if ((ret = hvio_intr_devino_to_sysino(DIP_TO_HANDLE(dip), 293 pxu_p, devino, sysino)) != H_EOK) { 294 DBG(DBG_LIB_INT, dip, 295 "hvio_intr_devino_to_sysino failed, ret 0x%lx\n", ret); 296 return (DDI_FAILURE); 297 } 298 299 DBG(DBG_LIB_INT, dip, "px_lib_intr_devino_to_sysino: sysino 0x%llx\n", 300 *sysino); 301 302 return (DDI_SUCCESS); 303 } 304 305 /*ARGSUSED*/ 306 int 307 px_lib_intr_getvalid(dev_info_t *dip, sysino_t sysino, 308 intr_valid_state_t *intr_valid_state) 309 { 310 uint64_t ret; 311 312 DBG(DBG_LIB_INT, dip, "px_lib_intr_getvalid: dip 0x%p sysino 0x%llx\n", 313 dip, sysino); 314 315 if ((ret = hvio_intr_getvalid(DIP_TO_HANDLE(dip), 316 sysino, intr_valid_state)) != H_EOK) { 317 DBG(DBG_LIB_INT, dip, "hvio_intr_getvalid failed, ret 0x%lx\n", 318 ret); 319 return (DDI_FAILURE); 320 } 321 322 DBG(DBG_LIB_INT, dip, "px_lib_intr_getvalid: intr_valid_state 0x%x\n", 323 *intr_valid_state); 324 325 return (DDI_SUCCESS); 326 } 327 328 /*ARGSUSED*/ 329 int 330 px_lib_intr_setvalid(dev_info_t *dip, sysino_t sysino, 331 intr_valid_state_t intr_valid_state) 332 { 333 uint64_t ret; 334 335 DBG(DBG_LIB_INT, dip, "px_lib_intr_setvalid: dip 0x%p sysino 0x%llx " 336 "intr_valid_state 0x%x\n", dip, sysino, intr_valid_state); 337 338 if ((ret = hvio_intr_setvalid(DIP_TO_HANDLE(dip), 339 sysino, intr_valid_state)) != H_EOK) { 340 DBG(DBG_LIB_INT, dip, "hvio_intr_setvalid failed, ret 0x%lx\n", 341 ret); 342 return (DDI_FAILURE); 343 } 344 345 return (DDI_SUCCESS); 346 } 347 348 /*ARGSUSED*/ 349 int 350 px_lib_intr_getstate(dev_info_t *dip, sysino_t sysino, 351 intr_state_t *intr_state) 352 { 353 uint64_t ret; 354 355 DBG(DBG_LIB_INT, dip, "px_lib_intr_getstate: dip 0x%p sysino 0x%llx\n", 356 dip, sysino); 357 358 if ((ret = hvio_intr_getstate(DIP_TO_HANDLE(dip), 359 sysino, intr_state)) != H_EOK) { 360 DBG(DBG_LIB_INT, dip, "hvio_intr_getstate failed, ret 0x%lx\n", 361 ret); 362 return (DDI_FAILURE); 363 } 364 365 DBG(DBG_LIB_INT, dip, "px_lib_intr_getstate: intr_state 0x%x\n", 366 *intr_state); 367 368 return (DDI_SUCCESS); 369 } 370 371 /*ARGSUSED*/ 372 int 373 px_lib_intr_setstate(dev_info_t *dip, sysino_t sysino, 374 intr_state_t intr_state) 375 { 376 uint64_t ret; 377 378 DBG(DBG_LIB_INT, dip, "px_lib_intr_setstate: dip 0x%p sysino 0x%llx " 379 "intr_state 0x%x\n", dip, sysino, intr_state); 380 381 if ((ret = hvio_intr_setstate(DIP_TO_HANDLE(dip), 382 sysino, intr_state)) != H_EOK) { 383 DBG(DBG_LIB_INT, dip, "hvio_intr_setstate failed, ret 0x%lx\n", 384 ret); 385 return (DDI_FAILURE); 386 } 387 388 return (DDI_SUCCESS); 389 } 390 391 /*ARGSUSED*/ 392 int 393 px_lib_intr_gettarget(dev_info_t *dip, sysino_t sysino, cpuid_t *cpuid) 394 { 395 uint64_t ret; 396 397 DBG(DBG_LIB_INT, dip, "px_lib_intr_gettarget: dip 0x%p sysino 0x%llx\n", 398 dip, sysino); 399 400 if ((ret = hvio_intr_gettarget(DIP_TO_HANDLE(dip), 401 sysino, cpuid)) != H_EOK) { 402 DBG(DBG_LIB_INT, dip, "hvio_intr_gettarget failed, ret 0x%lx\n", 403 ret); 404 return (DDI_FAILURE); 405 } 406 407 DBG(DBG_LIB_INT, dip, "px_lib_intr_gettarget: cpuid 0x%x\n", cpuid); 408 409 return (DDI_SUCCESS); 410 } 411 412 /*ARGSUSED*/ 413 int 414 px_lib_intr_settarget(dev_info_t *dip, sysino_t sysino, cpuid_t cpuid) 415 { 416 uint64_t ret; 417 418 DBG(DBG_LIB_INT, dip, "px_lib_intr_settarget: dip 0x%p sysino 0x%llx " 419 "cpuid 0x%x\n", dip, sysino, cpuid); 420 421 if ((ret = hvio_intr_settarget(DIP_TO_HANDLE(dip), 422 sysino, cpuid)) != H_EOK) { 423 DBG(DBG_LIB_INT, dip, "hvio_intr_settarget failed, ret 0x%lx\n", 424 ret); 425 return (DDI_FAILURE); 426 } 427 428 return (DDI_SUCCESS); 429 } 430 431 /*ARGSUSED*/ 432 int 433 px_lib_intr_reset(dev_info_t *dip) 434 { 435 devino_t ino; 436 sysino_t sysino; 437 438 DBG(DBG_LIB_INT, dip, "px_lib_intr_reset: dip 0x%p\n", dip); 439 440 /* Reset all Interrupts */ 441 for (ino = 0; ino < INTERRUPT_MAPPING_ENTRIES; ino++) { 442 if (px_lib_intr_devino_to_sysino(dip, ino, 443 &sysino) != DDI_SUCCESS) 444 return (BF_FATAL); 445 446 if (px_lib_intr_setstate(dip, sysino, 447 INTR_IDLE_STATE) != DDI_SUCCESS) 448 return (BF_FATAL); 449 } 450 451 return (BF_NONE); 452 } 453 454 /*ARGSUSED*/ 455 int 456 px_lib_iommu_map(dev_info_t *dip, tsbid_t tsbid, pages_t pages, 457 io_attributes_t io_attributes, void *addr, size_t pfn_index, 458 int flag) 459 { 460 px_t *px_p = DIP_TO_STATE(dip); 461 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 462 uint64_t ret; 463 464 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_map: dip 0x%p tsbid 0x%llx " 465 "pages 0x%x atrr 0x%x addr 0x%p pfn_index 0x%llx, flag 0x%x\n", 466 dip, tsbid, pages, io_attributes, addr, pfn_index, flag); 467 468 if ((ret = hvio_iommu_map(px_p->px_dev_hdl, pxu_p, tsbid, pages, 469 io_attributes, addr, pfn_index, flag)) != H_EOK) { 470 DBG(DBG_LIB_DMA, dip, 471 "px_lib_iommu_map failed, ret 0x%lx\n", ret); 472 return (DDI_FAILURE); 473 } 474 475 return (DDI_SUCCESS); 476 } 477 478 /*ARGSUSED*/ 479 int 480 px_lib_iommu_demap(dev_info_t *dip, tsbid_t tsbid, pages_t pages) 481 { 482 px_t *px_p = DIP_TO_STATE(dip); 483 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 484 uint64_t ret; 485 486 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_demap: dip 0x%p tsbid 0x%llx " 487 "pages 0x%x\n", dip, tsbid, pages); 488 489 if ((ret = hvio_iommu_demap(px_p->px_dev_hdl, pxu_p, tsbid, pages)) 490 != H_EOK) { 491 DBG(DBG_LIB_DMA, dip, 492 "px_lib_iommu_demap failed, ret 0x%lx\n", ret); 493 494 return (DDI_FAILURE); 495 } 496 497 return (DDI_SUCCESS); 498 } 499 500 /*ARGSUSED*/ 501 int 502 px_lib_iommu_getmap(dev_info_t *dip, tsbid_t tsbid, 503 io_attributes_t *attributes_p, r_addr_t *r_addr_p) 504 { 505 px_t *px_p = DIP_TO_STATE(dip); 506 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 507 uint64_t ret; 508 509 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getmap: dip 0x%p tsbid 0x%llx\n", 510 dip, tsbid); 511 512 if ((ret = hvio_iommu_getmap(DIP_TO_HANDLE(dip), pxu_p, tsbid, 513 attributes_p, r_addr_p)) != H_EOK) { 514 DBG(DBG_LIB_DMA, dip, 515 "hvio_iommu_getmap failed, ret 0x%lx\n", ret); 516 517 return ((ret == H_ENOMAP) ? DDI_DMA_NOMAPPING:DDI_FAILURE); 518 } 519 520 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getmap: attr 0x%x r_addr 0x%llx\n", 521 *attributes_p, *r_addr_p); 522 523 return (DDI_SUCCESS); 524 } 525 526 527 /* 528 * Checks dma attributes against system bypass ranges 529 * The bypass range is determined by the hardware. Return them so the 530 * common code can do generic checking against them. 531 */ 532 /*ARGSUSED*/ 533 int 534 px_lib_dma_bypass_rngchk(ddi_dma_attr_t *attrp, uint64_t *lo_p, uint64_t *hi_p) 535 { 536 *lo_p = MMU_BYPASS_BASE; 537 *hi_p = MMU_BYPASS_END; 538 539 return (DDI_SUCCESS); 540 } 541 542 543 /*ARGSUSED*/ 544 int 545 px_lib_iommu_getbypass(dev_info_t *dip, r_addr_t ra, 546 io_attributes_t io_attributes, io_addr_t *io_addr_p) 547 { 548 uint64_t ret; 549 550 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getbypass: dip 0x%p ra 0x%llx " 551 "attr 0x%x\n", dip, ra, io_attributes); 552 553 if ((ret = hvio_iommu_getbypass(DIP_TO_HANDLE(dip), ra, 554 io_attributes, io_addr_p)) != H_EOK) { 555 DBG(DBG_LIB_DMA, dip, 556 "hvio_iommu_getbypass failed, ret 0x%lx\n", ret); 557 return (DDI_FAILURE); 558 } 559 560 DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getbypass: io_addr 0x%llx\n", 561 *io_addr_p); 562 563 return (DDI_SUCCESS); 564 } 565 566 /* 567 * bus dma sync entry point. 568 */ 569 /*ARGSUSED*/ 570 int 571 px_lib_dma_sync(dev_info_t *dip, dev_info_t *rdip, ddi_dma_handle_t handle, 572 off_t off, size_t len, uint_t cache_flags) 573 { 574 ddi_dma_impl_t *mp = (ddi_dma_impl_t *)handle; 575 576 DBG(DBG_LIB_DMA, dip, "px_lib_dma_sync: dip 0x%p rdip 0x%p " 577 "handle 0x%llx off 0x%x len 0x%x flags 0x%x\n", 578 dip, rdip, handle, off, len, cache_flags); 579 580 /* 581 * jbus_stst_order is found only in certain cpu modules. 582 * Just return success if not present. 583 */ 584 if (&jbus_stst_order == NULL) 585 return (DDI_SUCCESS); 586 587 if (!(mp->dmai_flags & DMAI_FLAGS_INUSE)) { 588 cmn_err(CE_WARN, "%s%d: Unbound dma handle %p.", 589 ddi_driver_name(rdip), ddi_get_instance(rdip), (void *)mp); 590 591 return (DDI_FAILURE); 592 } 593 594 if (mp->dmai_flags & DMAI_FLAGS_NOSYNC) 595 return (DDI_SUCCESS); 596 597 /* 598 * No flush needed when sending data from memory to device. 599 * Nothing to do to "sync" memory to what device would already see. 600 */ 601 if (!(mp->dmai_rflags & DDI_DMA_READ) || 602 ((cache_flags & PX_DMA_SYNC_DDI_FLAGS) == DDI_DMA_SYNC_FORDEV)) 603 return (DDI_SUCCESS); 604 605 /* 606 * Perform necessary cpu workaround to ensure jbus ordering. 607 * CPU's internal "invalidate FIFOs" are flushed. 608 */ 609 610 #if !defined(lint) 611 kpreempt_disable(); 612 #endif 613 jbus_stst_order(); 614 #if !defined(lint) 615 kpreempt_enable(); 616 #endif 617 return (DDI_SUCCESS); 618 } 619 620 /* 621 * MSIQ Functions: 622 */ 623 /*ARGSUSED*/ 624 int 625 px_lib_msiq_init(dev_info_t *dip) 626 { 627 px_t *px_p = DIP_TO_STATE(dip); 628 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 629 px_msiq_state_t *msiq_state_p = &px_p->px_ib_p->ib_msiq_state; 630 caddr_t msiq_addr; 631 px_dvma_addr_t pg_index; 632 size_t size; 633 int ret; 634 635 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_init: dip 0x%p\n", dip); 636 637 /* 638 * Map the EQ memory into the Fire MMU (has to be 512KB aligned) 639 * and then initialize the base address register. 640 * 641 * Allocate entries from Fire IOMMU so that the resulting address 642 * is properly aligned. Calculate the index of the first allocated 643 * entry. Note: The size of the mapping is assumed to be a multiple 644 * of the page size. 645 */ 646 msiq_addr = (caddr_t)(((uint64_t)msiq_state_p->msiq_buf_p + 647 (MMU_PAGE_SIZE - 1)) >> MMU_PAGE_SHIFT << MMU_PAGE_SHIFT); 648 649 size = msiq_state_p->msiq_cnt * 650 msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t); 651 652 pxu_p->msiq_mapped_p = vmem_xalloc(px_p->px_mmu_p->mmu_dvma_map, 653 size, (512 * 1024), 0, 0, NULL, NULL, VM_NOSLEEP | VM_BESTFIT); 654 655 if (pxu_p->msiq_mapped_p == NULL) 656 return (DDI_FAILURE); 657 658 pg_index = MMU_PAGE_INDEX(px_p->px_mmu_p, 659 MMU_BTOP((ulong_t)pxu_p->msiq_mapped_p)); 660 661 if ((ret = px_lib_iommu_map(px_p->px_dip, PCI_TSBID(0, pg_index), 662 MMU_BTOP(size), PCI_MAP_ATTR_WRITE, (void *)msiq_addr, 0, 663 MMU_MAP_BUF)) != DDI_SUCCESS) { 664 DBG(DBG_LIB_MSIQ, dip, 665 "hvio_msiq_init failed, ret 0x%lx\n", ret); 666 667 (void) px_lib_msiq_fini(dip); 668 return (DDI_FAILURE); 669 } 670 671 (void) hvio_msiq_init(DIP_TO_HANDLE(dip), pxu_p); 672 673 return (DDI_SUCCESS); 674 } 675 676 /*ARGSUSED*/ 677 int 678 px_lib_msiq_fini(dev_info_t *dip) 679 { 680 px_t *px_p = DIP_TO_STATE(dip); 681 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 682 px_msiq_state_t *msiq_state_p = &px_p->px_ib_p->ib_msiq_state; 683 px_dvma_addr_t pg_index; 684 size_t size; 685 686 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_fini: dip 0x%p\n", dip); 687 688 /* 689 * Unmap and free the EQ memory that had been mapped 690 * into the Fire IOMMU. 691 */ 692 size = msiq_state_p->msiq_cnt * 693 msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t); 694 695 pg_index = MMU_PAGE_INDEX(px_p->px_mmu_p, 696 MMU_BTOP((ulong_t)pxu_p->msiq_mapped_p)); 697 698 (void) px_lib_iommu_demap(px_p->px_dip, 699 PCI_TSBID(0, pg_index), MMU_BTOP(size)); 700 701 /* Free the entries from the Fire MMU */ 702 vmem_xfree(px_p->px_mmu_p->mmu_dvma_map, 703 (void *)pxu_p->msiq_mapped_p, size); 704 705 return (DDI_SUCCESS); 706 } 707 708 /*ARGSUSED*/ 709 int 710 px_lib_msiq_info(dev_info_t *dip, msiqid_t msiq_id, r_addr_t *ra_p, 711 uint_t *msiq_rec_cnt_p) 712 { 713 px_t *px_p = DIP_TO_STATE(dip); 714 px_msiq_state_t *msiq_state_p = &px_p->px_ib_p->ib_msiq_state; 715 uint64_t *msiq_addr; 716 size_t msiq_size; 717 718 DBG(DBG_LIB_MSIQ, dip, "px_msiq_info: dip 0x%p msiq_id 0x%x\n", 719 dip, msiq_id); 720 721 msiq_addr = (uint64_t *)(((uint64_t)msiq_state_p->msiq_buf_p + 722 (MMU_PAGE_SIZE - 1)) >> MMU_PAGE_SHIFT << MMU_PAGE_SHIFT); 723 msiq_size = msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t); 724 ra_p = (r_addr_t *)((caddr_t)msiq_addr + (msiq_id * msiq_size)); 725 726 *msiq_rec_cnt_p = msiq_state_p->msiq_rec_cnt; 727 728 DBG(DBG_LIB_MSIQ, dip, "px_msiq_info: ra_p 0x%p msiq_rec_cnt 0x%x\n", 729 ra_p, *msiq_rec_cnt_p); 730 731 return (DDI_SUCCESS); 732 } 733 734 /*ARGSUSED*/ 735 int 736 px_lib_msiq_getvalid(dev_info_t *dip, msiqid_t msiq_id, 737 pci_msiq_valid_state_t *msiq_valid_state) 738 { 739 uint64_t ret; 740 741 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getvalid: dip 0x%p msiq_id 0x%x\n", 742 dip, msiq_id); 743 744 if ((ret = hvio_msiq_getvalid(DIP_TO_HANDLE(dip), 745 msiq_id, msiq_valid_state)) != H_EOK) { 746 DBG(DBG_LIB_MSIQ, dip, 747 "hvio_msiq_getvalid failed, ret 0x%lx\n", ret); 748 return (DDI_FAILURE); 749 } 750 751 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getvalid: msiq_valid_state 0x%x\n", 752 *msiq_valid_state); 753 754 return (DDI_SUCCESS); 755 } 756 757 /*ARGSUSED*/ 758 int 759 px_lib_msiq_setvalid(dev_info_t *dip, msiqid_t msiq_id, 760 pci_msiq_valid_state_t msiq_valid_state) 761 { 762 uint64_t ret; 763 764 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_setvalid: dip 0x%p msiq_id 0x%x " 765 "msiq_valid_state 0x%x\n", dip, msiq_id, msiq_valid_state); 766 767 if ((ret = hvio_msiq_setvalid(DIP_TO_HANDLE(dip), 768 msiq_id, msiq_valid_state)) != H_EOK) { 769 DBG(DBG_LIB_MSIQ, dip, 770 "hvio_msiq_setvalid failed, ret 0x%lx\n", ret); 771 return (DDI_FAILURE); 772 } 773 774 return (DDI_SUCCESS); 775 } 776 777 /*ARGSUSED*/ 778 int 779 px_lib_msiq_getstate(dev_info_t *dip, msiqid_t msiq_id, 780 pci_msiq_state_t *msiq_state) 781 { 782 uint64_t ret; 783 784 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getstate: dip 0x%p msiq_id 0x%x\n", 785 dip, msiq_id); 786 787 if ((ret = hvio_msiq_getstate(DIP_TO_HANDLE(dip), 788 msiq_id, msiq_state)) != H_EOK) { 789 DBG(DBG_LIB_MSIQ, dip, 790 "hvio_msiq_getstate failed, ret 0x%lx\n", ret); 791 return (DDI_FAILURE); 792 } 793 794 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getstate: msiq_state 0x%x\n", 795 *msiq_state); 796 797 return (DDI_SUCCESS); 798 } 799 800 /*ARGSUSED*/ 801 int 802 px_lib_msiq_setstate(dev_info_t *dip, msiqid_t msiq_id, 803 pci_msiq_state_t msiq_state) 804 { 805 uint64_t ret; 806 807 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_setstate: dip 0x%p msiq_id 0x%x " 808 "msiq_state 0x%x\n", dip, msiq_id, msiq_state); 809 810 if ((ret = hvio_msiq_setstate(DIP_TO_HANDLE(dip), 811 msiq_id, msiq_state)) != H_EOK) { 812 DBG(DBG_LIB_MSIQ, dip, 813 "hvio_msiq_setstate failed, ret 0x%lx\n", ret); 814 return (DDI_FAILURE); 815 } 816 817 return (DDI_SUCCESS); 818 } 819 820 /*ARGSUSED*/ 821 int 822 px_lib_msiq_gethead(dev_info_t *dip, msiqid_t msiq_id, 823 msiqhead_t *msiq_head) 824 { 825 uint64_t ret; 826 827 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gethead: dip 0x%p msiq_id 0x%x\n", 828 dip, msiq_id); 829 830 if ((ret = hvio_msiq_gethead(DIP_TO_HANDLE(dip), 831 msiq_id, msiq_head)) != H_EOK) { 832 DBG(DBG_LIB_MSIQ, dip, 833 "hvio_msiq_gethead failed, ret 0x%lx\n", ret); 834 return (DDI_FAILURE); 835 } 836 837 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gethead: msiq_head 0x%x\n", 838 *msiq_head); 839 840 return (DDI_SUCCESS); 841 } 842 843 /*ARGSUSED*/ 844 int 845 px_lib_msiq_sethead(dev_info_t *dip, msiqid_t msiq_id, 846 msiqhead_t msiq_head) 847 { 848 uint64_t ret; 849 850 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_sethead: dip 0x%p msiq_id 0x%x " 851 "msiq_head 0x%x\n", dip, msiq_id, msiq_head); 852 853 if ((ret = hvio_msiq_sethead(DIP_TO_HANDLE(dip), 854 msiq_id, msiq_head)) != H_EOK) { 855 DBG(DBG_LIB_MSIQ, dip, 856 "hvio_msiq_sethead failed, ret 0x%lx\n", ret); 857 return (DDI_FAILURE); 858 } 859 860 return (DDI_SUCCESS); 861 } 862 863 /*ARGSUSED*/ 864 int 865 px_lib_msiq_gettail(dev_info_t *dip, msiqid_t msiq_id, 866 msiqtail_t *msiq_tail) 867 { 868 uint64_t ret; 869 870 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gettail: dip 0x%p msiq_id 0x%x\n", 871 dip, msiq_id); 872 873 if ((ret = hvio_msiq_gettail(DIP_TO_HANDLE(dip), 874 msiq_id, msiq_tail)) != H_EOK) { 875 DBG(DBG_LIB_MSIQ, dip, 876 "hvio_msiq_gettail failed, ret 0x%lx\n", ret); 877 return (DDI_FAILURE); 878 } 879 880 DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gettail: msiq_tail 0x%x\n", 881 *msiq_tail); 882 883 return (DDI_SUCCESS); 884 } 885 886 /*ARGSUSED*/ 887 void 888 px_lib_get_msiq_rec(dev_info_t *dip, px_msiq_t *msiq_p, msiq_rec_t *msiq_rec_p) 889 { 890 eq_rec_t *eq_rec_p = (eq_rec_t *)msiq_p->msiq_curr; 891 892 DBG(DBG_LIB_MSIQ, dip, "px_lib_get_msiq_rec: dip 0x%p eq_rec_p 0x%p\n", 893 dip, eq_rec_p); 894 895 if (!eq_rec_p->eq_rec_fmt_type) { 896 /* Set msiq_rec_type to zero */ 897 msiq_rec_p->msiq_rec_type = 0; 898 899 return; 900 } 901 902 DBG(DBG_LIB_MSIQ, dip, "px_lib_get_msiq_rec: EQ RECORD, " 903 "eq_rec_rid 0x%llx eq_rec_fmt_type 0x%llx " 904 "eq_rec_len 0x%llx eq_rec_addr0 0x%llx " 905 "eq_rec_addr1 0x%llx eq_rec_data0 0x%llx " 906 "eq_rec_data1 0x%llx\n", eq_rec_p->eq_rec_rid, 907 eq_rec_p->eq_rec_fmt_type, eq_rec_p->eq_rec_len, 908 eq_rec_p->eq_rec_addr0, eq_rec_p->eq_rec_addr1, 909 eq_rec_p->eq_rec_data0, eq_rec_p->eq_rec_data1); 910 911 /* 912 * Only upper 4 bits of eq_rec_fmt_type is used 913 * to identify the EQ record type. 914 */ 915 switch (eq_rec_p->eq_rec_fmt_type >> 3) { 916 case EQ_REC_MSI32: 917 msiq_rec_p->msiq_rec_type = MSI32_REC; 918 919 msiq_rec_p->msiq_rec_data.msi.msi_data = 920 eq_rec_p->eq_rec_data0; 921 break; 922 case EQ_REC_MSI64: 923 msiq_rec_p->msiq_rec_type = MSI64_REC; 924 925 msiq_rec_p->msiq_rec_data.msi.msi_data = 926 eq_rec_p->eq_rec_data0; 927 break; 928 case EQ_REC_MSG: 929 msiq_rec_p->msiq_rec_type = MSG_REC; 930 931 msiq_rec_p->msiq_rec_data.msg.msg_route = 932 eq_rec_p->eq_rec_fmt_type & 7; 933 msiq_rec_p->msiq_rec_data.msg.msg_targ = eq_rec_p->eq_rec_rid; 934 msiq_rec_p->msiq_rec_data.msg.msg_code = eq_rec_p->eq_rec_data0; 935 break; 936 default: 937 cmn_err(CE_WARN, "%s%d: px_lib_get_msiq_rec: " 938 "0x%lx is an unknown EQ record type", 939 ddi_driver_name(dip), ddi_get_instance(dip), 940 eq_rec_p->eq_rec_fmt_type); 941 break; 942 } 943 944 msiq_rec_p->msiq_rec_rid = eq_rec_p->eq_rec_rid; 945 msiq_rec_p->msiq_rec_msi_addr = ((eq_rec_p->eq_rec_addr1 << 16) | 946 (eq_rec_p->eq_rec_addr0 << 2)); 947 948 /* Zero out eq_rec_fmt_type field */ 949 eq_rec_p->eq_rec_fmt_type = 0; 950 } 951 952 /* 953 * MSI Functions: 954 */ 955 /*ARGSUSED*/ 956 int 957 px_lib_msi_init(dev_info_t *dip) 958 { 959 px_t *px_p = DIP_TO_STATE(dip); 960 px_msi_state_t *msi_state_p = &px_p->px_ib_p->ib_msi_state; 961 uint64_t ret; 962 963 DBG(DBG_LIB_MSI, dip, "px_lib_msi_init: dip 0x%p\n", dip); 964 965 if ((ret = hvio_msi_init(DIP_TO_HANDLE(dip), 966 msi_state_p->msi_addr32, msi_state_p->msi_addr64)) != H_EOK) { 967 DBG(DBG_LIB_MSIQ, dip, "px_lib_msi_init failed, ret 0x%lx\n", 968 ret); 969 return (DDI_FAILURE); 970 } 971 972 return (DDI_SUCCESS); 973 } 974 975 /*ARGSUSED*/ 976 int 977 px_lib_msi_getmsiq(dev_info_t *dip, msinum_t msi_num, 978 msiqid_t *msiq_id) 979 { 980 uint64_t ret; 981 982 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getmsiq: dip 0x%p msi_num 0x%x\n", 983 dip, msi_num); 984 985 if ((ret = hvio_msi_getmsiq(DIP_TO_HANDLE(dip), 986 msi_num, msiq_id)) != H_EOK) { 987 DBG(DBG_LIB_MSI, dip, 988 "hvio_msi_getmsiq failed, ret 0x%lx\n", ret); 989 return (DDI_FAILURE); 990 } 991 992 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getmsiq: msiq_id 0x%x\n", 993 *msiq_id); 994 995 return (DDI_SUCCESS); 996 } 997 998 /*ARGSUSED*/ 999 int 1000 px_lib_msi_setmsiq(dev_info_t *dip, msinum_t msi_num, 1001 msiqid_t msiq_id, msi_type_t msitype) 1002 { 1003 uint64_t ret; 1004 1005 DBG(DBG_LIB_MSI, dip, "px_lib_msi_setmsiq: dip 0x%p msi_num 0x%x " 1006 "msq_id 0x%x\n", dip, msi_num, msiq_id); 1007 1008 if ((ret = hvio_msi_setmsiq(DIP_TO_HANDLE(dip), 1009 msi_num, msiq_id)) != H_EOK) { 1010 DBG(DBG_LIB_MSI, dip, 1011 "hvio_msi_setmsiq failed, ret 0x%lx\n", ret); 1012 return (DDI_FAILURE); 1013 } 1014 1015 return (DDI_SUCCESS); 1016 } 1017 1018 /*ARGSUSED*/ 1019 int 1020 px_lib_msi_getvalid(dev_info_t *dip, msinum_t msi_num, 1021 pci_msi_valid_state_t *msi_valid_state) 1022 { 1023 uint64_t ret; 1024 1025 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getvalid: dip 0x%p msi_num 0x%x\n", 1026 dip, msi_num); 1027 1028 if ((ret = hvio_msi_getvalid(DIP_TO_HANDLE(dip), 1029 msi_num, msi_valid_state)) != H_EOK) { 1030 DBG(DBG_LIB_MSI, dip, 1031 "hvio_msi_getvalid failed, ret 0x%lx\n", ret); 1032 return (DDI_FAILURE); 1033 } 1034 1035 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getvalid: msiq_id 0x%x\n", 1036 *msi_valid_state); 1037 1038 return (DDI_SUCCESS); 1039 } 1040 1041 /*ARGSUSED*/ 1042 int 1043 px_lib_msi_setvalid(dev_info_t *dip, msinum_t msi_num, 1044 pci_msi_valid_state_t msi_valid_state) 1045 { 1046 uint64_t ret; 1047 1048 DBG(DBG_LIB_MSI, dip, "px_lib_msi_setvalid: dip 0x%p msi_num 0x%x " 1049 "msi_valid_state 0x%x\n", dip, msi_num, msi_valid_state); 1050 1051 if ((ret = hvio_msi_setvalid(DIP_TO_HANDLE(dip), 1052 msi_num, msi_valid_state)) != H_EOK) { 1053 DBG(DBG_LIB_MSI, dip, 1054 "hvio_msi_setvalid failed, ret 0x%lx\n", ret); 1055 return (DDI_FAILURE); 1056 } 1057 1058 return (DDI_SUCCESS); 1059 } 1060 1061 /*ARGSUSED*/ 1062 int 1063 px_lib_msi_getstate(dev_info_t *dip, msinum_t msi_num, 1064 pci_msi_state_t *msi_state) 1065 { 1066 uint64_t ret; 1067 1068 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getstate: dip 0x%p msi_num 0x%x\n", 1069 dip, msi_num); 1070 1071 if ((ret = hvio_msi_getstate(DIP_TO_HANDLE(dip), 1072 msi_num, msi_state)) != H_EOK) { 1073 DBG(DBG_LIB_MSI, dip, 1074 "hvio_msi_getstate failed, ret 0x%lx\n", ret); 1075 return (DDI_FAILURE); 1076 } 1077 1078 DBG(DBG_LIB_MSI, dip, "px_lib_msi_getstate: msi_state 0x%x\n", 1079 *msi_state); 1080 1081 return (DDI_SUCCESS); 1082 } 1083 1084 /*ARGSUSED*/ 1085 int 1086 px_lib_msi_setstate(dev_info_t *dip, msinum_t msi_num, 1087 pci_msi_state_t msi_state) 1088 { 1089 uint64_t ret; 1090 1091 DBG(DBG_LIB_MSI, dip, "px_lib_msi_setstate: dip 0x%p msi_num 0x%x " 1092 "msi_state 0x%x\n", dip, msi_num, msi_state); 1093 1094 if ((ret = hvio_msi_setstate(DIP_TO_HANDLE(dip), 1095 msi_num, msi_state)) != H_EOK) { 1096 DBG(DBG_LIB_MSI, dip, 1097 "hvio_msi_setstate failed, ret 0x%lx\n", ret); 1098 return (DDI_FAILURE); 1099 } 1100 1101 return (DDI_SUCCESS); 1102 } 1103 1104 /* 1105 * MSG Functions: 1106 */ 1107 /*ARGSUSED*/ 1108 int 1109 px_lib_msg_getmsiq(dev_info_t *dip, pcie_msg_type_t msg_type, 1110 msiqid_t *msiq_id) 1111 { 1112 uint64_t ret; 1113 1114 DBG(DBG_LIB_MSG, dip, "px_lib_msg_getmsiq: dip 0x%p msg_type 0x%x\n", 1115 dip, msg_type); 1116 1117 if ((ret = hvio_msg_getmsiq(DIP_TO_HANDLE(dip), 1118 msg_type, msiq_id)) != H_EOK) { 1119 DBG(DBG_LIB_MSG, dip, 1120 "hvio_msg_getmsiq failed, ret 0x%lx\n", ret); 1121 return (DDI_FAILURE); 1122 } 1123 1124 DBG(DBG_LIB_MSI, dip, "px_lib_msg_getmsiq: msiq_id 0x%x\n", 1125 *msiq_id); 1126 1127 return (DDI_SUCCESS); 1128 } 1129 1130 /*ARGSUSED*/ 1131 int 1132 px_lib_msg_setmsiq(dev_info_t *dip, pcie_msg_type_t msg_type, 1133 msiqid_t msiq_id) 1134 { 1135 uint64_t ret; 1136 1137 DBG(DBG_LIB_MSG, dip, "px_lib_msi_setstate: dip 0x%p msg_type 0x%x " 1138 "msiq_id 0x%x\n", dip, msg_type, msiq_id); 1139 1140 if ((ret = hvio_msg_setmsiq(DIP_TO_HANDLE(dip), 1141 msg_type, msiq_id)) != H_EOK) { 1142 DBG(DBG_LIB_MSG, dip, 1143 "hvio_msg_setmsiq failed, ret 0x%lx\n", ret); 1144 return (DDI_FAILURE); 1145 } 1146 1147 return (DDI_SUCCESS); 1148 } 1149 1150 /*ARGSUSED*/ 1151 int 1152 px_lib_msg_getvalid(dev_info_t *dip, pcie_msg_type_t msg_type, 1153 pcie_msg_valid_state_t *msg_valid_state) 1154 { 1155 uint64_t ret; 1156 1157 DBG(DBG_LIB_MSG, dip, "px_lib_msg_getvalid: dip 0x%p msg_type 0x%x\n", 1158 dip, msg_type); 1159 1160 if ((ret = hvio_msg_getvalid(DIP_TO_HANDLE(dip), msg_type, 1161 msg_valid_state)) != H_EOK) { 1162 DBG(DBG_LIB_MSG, dip, 1163 "hvio_msg_getvalid failed, ret 0x%lx\n", ret); 1164 return (DDI_FAILURE); 1165 } 1166 1167 DBG(DBG_LIB_MSI, dip, "px_lib_msg_getvalid: msg_valid_state 0x%x\n", 1168 *msg_valid_state); 1169 1170 return (DDI_SUCCESS); 1171 } 1172 1173 /*ARGSUSED*/ 1174 int 1175 px_lib_msg_setvalid(dev_info_t *dip, pcie_msg_type_t msg_type, 1176 pcie_msg_valid_state_t msg_valid_state) 1177 { 1178 uint64_t ret; 1179 1180 DBG(DBG_LIB_MSG, dip, "px_lib_msg_setvalid: dip 0x%p msg_type 0x%x " 1181 "msg_valid_state 0x%x\n", dip, msg_type, msg_valid_state); 1182 1183 if ((ret = hvio_msg_setvalid(DIP_TO_HANDLE(dip), msg_type, 1184 msg_valid_state)) != H_EOK) { 1185 DBG(DBG_LIB_MSG, dip, 1186 "hvio_msg_setvalid failed, ret 0x%lx\n", ret); 1187 return (DDI_FAILURE); 1188 } 1189 1190 return (DDI_SUCCESS); 1191 } 1192 1193 /* 1194 * Suspend/Resume Functions: 1195 * Currently unsupported by hypervisor 1196 */ 1197 int 1198 px_lib_suspend(dev_info_t *dip) 1199 { 1200 px_t *px_p = DIP_TO_STATE(dip); 1201 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1202 devhandle_t dev_hdl, xbus_dev_hdl; 1203 uint64_t ret; 1204 1205 DBG(DBG_DETACH, dip, "px_lib_suspend: dip 0x%p\n", dip); 1206 1207 dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_CSR]; 1208 xbus_dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_XBC]; 1209 1210 if ((ret = hvio_suspend(dev_hdl, pxu_p)) == H_EOK) { 1211 px_p->px_cb_p->xbc_attachcnt--; 1212 if (px_p->px_cb_p->xbc_attachcnt == 0) 1213 if ((ret = hvio_cb_suspend(xbus_dev_hdl, pxu_p)) 1214 != H_EOK) 1215 px_p->px_cb_p->xbc_attachcnt++; 1216 } 1217 1218 return ((ret != H_EOK) ? DDI_FAILURE: DDI_SUCCESS); 1219 } 1220 1221 void 1222 px_lib_resume(dev_info_t *dip) 1223 { 1224 px_t *px_p = DIP_TO_STATE(dip); 1225 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1226 devhandle_t dev_hdl, xbus_dev_hdl; 1227 devino_t pec_ino = px_p->px_inos[PX_INTR_PEC]; 1228 devino_t xbc_ino = px_p->px_inos[PX_INTR_XBC]; 1229 1230 DBG(DBG_ATTACH, dip, "px_lib_resume: dip 0x%p\n", dip); 1231 1232 dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_CSR]; 1233 xbus_dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_XBC]; 1234 1235 px_p->px_cb_p->xbc_attachcnt++; 1236 if (px_p->px_cb_p->xbc_attachcnt == 1) 1237 hvio_cb_resume(dev_hdl, xbus_dev_hdl, xbc_ino, pxu_p); 1238 hvio_resume(dev_hdl, pec_ino, pxu_p); 1239 } 1240 1241 /* 1242 * Misc Functions: 1243 * Currently unsupported by hypervisor 1244 */ 1245 uint64_t 1246 px_lib_get_cb(dev_info_t *dip) 1247 { 1248 px_t *px_p = DIP_TO_STATE(dip); 1249 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1250 1251 return (CSR_XR((caddr_t)pxu_p->px_address[PX_REG_XBC], JBUS_SCRATCH_1)); 1252 } 1253 1254 void 1255 px_lib_set_cb(dev_info_t *dip, uint64_t val) 1256 { 1257 px_t *px_p = DIP_TO_STATE(dip); 1258 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1259 1260 CSR_XS((caddr_t)pxu_p->px_address[PX_REG_XBC], JBUS_SCRATCH_1, val); 1261 } 1262 1263 /*ARGSUSED*/ 1264 int 1265 px_lib_map_vconfig(dev_info_t *dip, 1266 ddi_map_req_t *mp, pci_config_offset_t off, 1267 pci_regspec_t *rp, caddr_t *addrp) 1268 { 1269 /* 1270 * No special config space access services in this layer. 1271 */ 1272 return (DDI_FAILURE); 1273 } 1274 1275 void 1276 px_lib_clr_errs(px_t *px_p) 1277 { 1278 px_pec_t *pec_p = px_p->px_pec_p; 1279 dev_info_t *rpdip = px_p->px_dip; 1280 px_cb_t *cb_p = px_p->px_cb_p; 1281 int err = PX_OK, ret; 1282 int acctype = pec_p->pec_safeacc_type; 1283 ddi_fm_error_t derr; 1284 1285 /* Create the derr */ 1286 bzero(&derr, sizeof (ddi_fm_error_t)); 1287 derr.fme_version = DDI_FME_VERSION; 1288 derr.fme_ena = fm_ena_generate(0, FM_ENA_FMT1); 1289 derr.fme_flag = acctype; 1290 1291 if (acctype == DDI_FM_ERR_EXPECTED) { 1292 derr.fme_status = DDI_FM_NONFATAL; 1293 ndi_fm_acc_err_set(pec_p->pec_acc_hdl, &derr); 1294 } 1295 1296 mutex_enter(&cb_p->xbc_fm_mutex); 1297 1298 /* send ereport/handle/clear fire registers */ 1299 err = px_err_handle(px_p, &derr, PX_LIB_CALL, B_TRUE); 1300 1301 /* Check all child devices for errors */ 1302 ret = ndi_fm_handler_dispatch(rpdip, NULL, &derr); 1303 1304 mutex_exit(&cb_p->xbc_fm_mutex); 1305 1306 /* 1307 * PX_FATAL_HW indicates a condition recovered from Fatal-Reset, 1308 * therefore it does not cause panic. 1309 */ 1310 if ((err & (PX_FATAL_GOS | PX_FATAL_SW)) || (ret == DDI_FM_FATAL)) 1311 fm_panic("Fatal System Port Error has occurred\n"); 1312 } 1313 1314 #ifdef DEBUG 1315 int px_peekfault_cnt = 0; 1316 int px_pokefault_cnt = 0; 1317 #endif /* DEBUG */ 1318 1319 /*ARGSUSED*/ 1320 static int 1321 px_lib_do_poke(dev_info_t *dip, dev_info_t *rdip, 1322 peekpoke_ctlops_t *in_args) 1323 { 1324 px_t *px_p = DIP_TO_STATE(dip); 1325 px_pec_t *pec_p = px_p->px_pec_p; 1326 int err = DDI_SUCCESS; 1327 on_trap_data_t otd; 1328 1329 mutex_enter(&pec_p->pec_pokefault_mutex); 1330 pec_p->pec_ontrap_data = &otd; 1331 pec_p->pec_safeacc_type = DDI_FM_ERR_POKE; 1332 1333 /* Set up protected environment. */ 1334 if (!on_trap(&otd, OT_DATA_ACCESS)) { 1335 uintptr_t tramp = otd.ot_trampoline; 1336 1337 otd.ot_trampoline = (uintptr_t)&poke_fault; 1338 err = do_poke(in_args->size, (void *)in_args->dev_addr, 1339 (void *)in_args->host_addr); 1340 otd.ot_trampoline = tramp; 1341 } else 1342 err = DDI_FAILURE; 1343 1344 px_lib_clr_errs(px_p); 1345 1346 if (otd.ot_trap & OT_DATA_ACCESS) 1347 err = DDI_FAILURE; 1348 1349 /* Take down protected environment. */ 1350 no_trap(); 1351 1352 pec_p->pec_ontrap_data = NULL; 1353 pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED; 1354 mutex_exit(&pec_p->pec_pokefault_mutex); 1355 1356 #ifdef DEBUG 1357 if (err == DDI_FAILURE) 1358 px_pokefault_cnt++; 1359 #endif 1360 return (err); 1361 } 1362 1363 /*ARGSUSED*/ 1364 static int 1365 px_lib_do_caut_put(dev_info_t *dip, dev_info_t *rdip, 1366 peekpoke_ctlops_t *cautacc_ctlops_arg) 1367 { 1368 size_t size = cautacc_ctlops_arg->size; 1369 uintptr_t dev_addr = cautacc_ctlops_arg->dev_addr; 1370 uintptr_t host_addr = cautacc_ctlops_arg->host_addr; 1371 ddi_acc_impl_t *hp = (ddi_acc_impl_t *)cautacc_ctlops_arg->handle; 1372 size_t repcount = cautacc_ctlops_arg->repcount; 1373 uint_t flags = cautacc_ctlops_arg->flags; 1374 1375 px_t *px_p = DIP_TO_STATE(dip); 1376 px_pec_t *pec_p = px_p->px_pec_p; 1377 int err = DDI_SUCCESS; 1378 1379 /* 1380 * Note that i_ndi_busop_access_enter ends up grabbing the pokefault 1381 * mutex. 1382 */ 1383 i_ndi_busop_access_enter(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp); 1384 1385 pec_p->pec_ontrap_data = (on_trap_data_t *)hp->ahi_err->err_ontrap; 1386 pec_p->pec_safeacc_type = DDI_FM_ERR_EXPECTED; 1387 hp->ahi_err->err_expected = DDI_FM_ERR_EXPECTED; 1388 1389 if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) { 1390 for (; repcount; repcount--) { 1391 switch (size) { 1392 1393 case sizeof (uint8_t): 1394 i_ddi_put8(hp, (uint8_t *)dev_addr, 1395 *(uint8_t *)host_addr); 1396 break; 1397 1398 case sizeof (uint16_t): 1399 i_ddi_put16(hp, (uint16_t *)dev_addr, 1400 *(uint16_t *)host_addr); 1401 break; 1402 1403 case sizeof (uint32_t): 1404 i_ddi_put32(hp, (uint32_t *)dev_addr, 1405 *(uint32_t *)host_addr); 1406 break; 1407 1408 case sizeof (uint64_t): 1409 i_ddi_put64(hp, (uint64_t *)dev_addr, 1410 *(uint64_t *)host_addr); 1411 break; 1412 } 1413 1414 host_addr += size; 1415 1416 if (flags == DDI_DEV_AUTOINCR) 1417 dev_addr += size; 1418 1419 px_lib_clr_errs(px_p); 1420 1421 if (pec_p->pec_ontrap_data->ot_trap & OT_DATA_ACCESS) { 1422 err = DDI_FAILURE; 1423 #ifdef DEBUG 1424 px_pokefault_cnt++; 1425 #endif 1426 break; 1427 } 1428 } 1429 } 1430 1431 i_ddi_notrap((ddi_acc_handle_t)hp); 1432 pec_p->pec_ontrap_data = NULL; 1433 pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED; 1434 i_ndi_busop_access_exit(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp); 1435 hp->ahi_err->err_expected = DDI_FM_ERR_UNEXPECTED; 1436 1437 return (err); 1438 } 1439 1440 1441 int 1442 px_lib_ctlops_poke(dev_info_t *dip, dev_info_t *rdip, 1443 peekpoke_ctlops_t *in_args) 1444 { 1445 return (in_args->handle ? px_lib_do_caut_put(dip, rdip, in_args) : 1446 px_lib_do_poke(dip, rdip, in_args)); 1447 } 1448 1449 1450 /*ARGSUSED*/ 1451 static int 1452 px_lib_do_peek(dev_info_t *dip, peekpoke_ctlops_t *in_args) 1453 { 1454 px_t *px_p = DIP_TO_STATE(dip); 1455 px_pec_t *pec_p = px_p->px_pec_p; 1456 int err = DDI_SUCCESS; 1457 on_trap_data_t otd; 1458 1459 mutex_enter(&pec_p->pec_pokefault_mutex); 1460 pec_p->pec_safeacc_type = DDI_FM_ERR_PEEK; 1461 1462 if (!on_trap(&otd, OT_DATA_ACCESS)) { 1463 uintptr_t tramp = otd.ot_trampoline; 1464 1465 otd.ot_trampoline = (uintptr_t)&peek_fault; 1466 err = do_peek(in_args->size, (void *)in_args->dev_addr, 1467 (void *)in_args->host_addr); 1468 otd.ot_trampoline = tramp; 1469 } else 1470 err = DDI_FAILURE; 1471 1472 no_trap(); 1473 pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED; 1474 mutex_exit(&pec_p->pec_pokefault_mutex); 1475 1476 #ifdef DEBUG 1477 if (err == DDI_FAILURE) 1478 px_peekfault_cnt++; 1479 #endif 1480 return (err); 1481 } 1482 1483 1484 static int 1485 px_lib_do_caut_get(dev_info_t *dip, peekpoke_ctlops_t *cautacc_ctlops_arg) 1486 { 1487 size_t size = cautacc_ctlops_arg->size; 1488 uintptr_t dev_addr = cautacc_ctlops_arg->dev_addr; 1489 uintptr_t host_addr = cautacc_ctlops_arg->host_addr; 1490 ddi_acc_impl_t *hp = (ddi_acc_impl_t *)cautacc_ctlops_arg->handle; 1491 size_t repcount = cautacc_ctlops_arg->repcount; 1492 uint_t flags = cautacc_ctlops_arg->flags; 1493 1494 px_t *px_p = DIP_TO_STATE(dip); 1495 px_pec_t *pec_p = px_p->px_pec_p; 1496 int err = DDI_SUCCESS; 1497 1498 /* 1499 * Note that i_ndi_busop_access_enter ends up grabbing the pokefault 1500 * mutex. 1501 */ 1502 i_ndi_busop_access_enter(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp); 1503 1504 pec_p->pec_ontrap_data = (on_trap_data_t *)hp->ahi_err->err_ontrap; 1505 pec_p->pec_safeacc_type = DDI_FM_ERR_EXPECTED; 1506 hp->ahi_err->err_expected = DDI_FM_ERR_EXPECTED; 1507 1508 if (repcount == 1) { 1509 if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) { 1510 i_ddi_caut_get(size, (void *)dev_addr, 1511 (void *)host_addr); 1512 } else { 1513 int i; 1514 uint8_t *ff_addr = (uint8_t *)host_addr; 1515 for (i = 0; i < size; i++) 1516 *ff_addr++ = 0xff; 1517 1518 err = DDI_FAILURE; 1519 #ifdef DEBUG 1520 px_peekfault_cnt++; 1521 #endif 1522 } 1523 } else { 1524 if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) { 1525 for (; repcount; repcount--) { 1526 i_ddi_caut_get(size, (void *)dev_addr, 1527 (void *)host_addr); 1528 1529 host_addr += size; 1530 1531 if (flags == DDI_DEV_AUTOINCR) 1532 dev_addr += size; 1533 } 1534 } else { 1535 err = DDI_FAILURE; 1536 #ifdef DEBUG 1537 px_peekfault_cnt++; 1538 #endif 1539 } 1540 } 1541 1542 i_ddi_notrap((ddi_acc_handle_t)hp); 1543 pec_p->pec_ontrap_data = NULL; 1544 pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED; 1545 i_ndi_busop_access_exit(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp); 1546 hp->ahi_err->err_expected = DDI_FM_ERR_UNEXPECTED; 1547 1548 return (err); 1549 } 1550 1551 /*ARGSUSED*/ 1552 int 1553 px_lib_ctlops_peek(dev_info_t *dip, dev_info_t *rdip, 1554 peekpoke_ctlops_t *in_args, void *result) 1555 { 1556 result = (void *)in_args->host_addr; 1557 return (in_args->handle ? px_lib_do_caut_get(dip, in_args) : 1558 px_lib_do_peek(dip, in_args)); 1559 } 1560 1561 /* 1562 * implements PPM interface 1563 */ 1564 int 1565 px_lib_pmctl(int cmd, px_t *px_p) 1566 { 1567 ASSERT((cmd & ~PPMREQ_MASK) == PPMREQ); 1568 switch (cmd) { 1569 case PPMREQ_PRE_PWR_OFF: 1570 /* 1571 * Currently there is no device power management for 1572 * the root complex (fire). When there is we need to make 1573 * sure that it is at full power before trying to send the 1574 * PME_Turn_Off message. 1575 */ 1576 DBG(DBG_PWR, px_p->px_dip, 1577 "ioctl: request to send PME_Turn_Off\n"); 1578 return (px_goto_l23ready(px_p)); 1579 1580 case PPMREQ_PRE_PWR_ON: 1581 DBG(DBG_PWR, px_p->px_dip, "ioctl: PRE_PWR_ON request\n"); 1582 return (px_pre_pwron_check(px_p)); 1583 1584 case PPMREQ_POST_PWR_ON: 1585 DBG(DBG_PWR, px_p->px_dip, "ioctl: POST_PWR_ON request\n"); 1586 return (px_goto_l0(px_p)); 1587 1588 default: 1589 return (DDI_FAILURE); 1590 } 1591 } 1592 1593 #define MSEC_TO_USEC 1000 1594 1595 /* 1596 * sends PME_Turn_Off message to put the link in L2/L3 ready state. 1597 * called by px_ioctl. 1598 * returns DDI_SUCCESS or DDI_FAILURE 1599 * 1. Wait for link to be in L1 state (link status reg) 1600 * 2. write to PME_Turn_off reg to boradcast 1601 * 3. set timeout 1602 * 4. If timeout, return failure. 1603 * 5. If PM_TO_Ack, wait till link is in L2/L3 ready 1604 */ 1605 static int 1606 px_goto_l23ready(px_t *px_p) 1607 { 1608 pcie_pwr_t *pwr_p; 1609 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1610 caddr_t csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR]; 1611 int ret = DDI_SUCCESS; 1612 clock_t end, timeleft; 1613 int mutex_held = 1; 1614 1615 /* If no PM info, return failure */ 1616 if (!PCIE_PMINFO(px_p->px_dip) || 1617 !(pwr_p = PCIE_NEXUS_PMINFO(px_p->px_dip))) 1618 return (DDI_FAILURE); 1619 1620 mutex_enter(&pwr_p->pwr_lock); 1621 mutex_enter(&px_p->px_l23ready_lock); 1622 /* Clear the PME_To_ACK receieved flag */ 1623 px_p->px_pm_flags &= ~PX_PMETOACK_RECVD; 1624 /* 1625 * When P25 is the downstream device, after receiving 1626 * PME_To_ACK, fire will go to Detect state, which causes 1627 * the link down event. Inform FMA that this is expected. 1628 * In case of all other cards complaint with the pci express 1629 * spec, this will happen when the power is re-applied. FMA 1630 * code will clear this flag after one instance of LDN. Since 1631 * there will not be a LDN event for the spec compliant cards, 1632 * we need to clear the flag after receiving PME_To_ACK. 1633 */ 1634 px_p->px_pm_flags |= PX_LDN_EXPECTED; 1635 if (px_send_pme_turnoff(csr_base) != DDI_SUCCESS) { 1636 ret = DDI_FAILURE; 1637 goto l23ready_done; 1638 } 1639 px_p->px_pm_flags |= PX_PME_TURNOFF_PENDING; 1640 1641 end = ddi_get_lbolt() + drv_usectohz(px_pme_to_ack_timeout); 1642 while (!(px_p->px_pm_flags & PX_PMETOACK_RECVD)) { 1643 timeleft = cv_timedwait(&px_p->px_l23ready_cv, 1644 &px_p->px_l23ready_lock, end); 1645 /* 1646 * if cv_timedwait returns -1, it is either 1647 * 1) timed out or 1648 * 2) there was a pre-mature wakeup but by the time 1649 * cv_timedwait is called again end < lbolt i.e. 1650 * end is in the past. 1651 * 3) By the time we make first cv_timedwait call, 1652 * end < lbolt is true. 1653 */ 1654 if (timeleft == -1) 1655 break; 1656 } 1657 if (!(px_p->px_pm_flags & PX_PMETOACK_RECVD)) { 1658 /* 1659 * Either timedout or interrupt didn't get a 1660 * chance to grab the mutex and set the flag. 1661 * release the mutex and delay for sometime. 1662 * This will 1) give a chance for interrupt to 1663 * set the flag 2) creates a delay between two 1664 * consequetive requests. 1665 */ 1666 mutex_exit(&px_p->px_l23ready_lock); 1667 delay(drv_usectohz(50 * MSEC_TO_USEC)); 1668 mutex_held = 0; 1669 if (!(px_p->px_pm_flags & PX_PMETOACK_RECVD)) { 1670 ret = DDI_FAILURE; 1671 DBG(DBG_PWR, px_p->px_dip, " Timed out while waiting" 1672 " for PME_TO_ACK\n"); 1673 } 1674 } 1675 px_p->px_pm_flags &= 1676 ~(PX_PME_TURNOFF_PENDING | PX_PMETOACK_RECVD | PX_LDN_EXPECTED); 1677 1678 l23ready_done: 1679 if (mutex_held) 1680 mutex_exit(&px_p->px_l23ready_lock); 1681 /* 1682 * Wait till link is in L1 idle, if sending PME_Turn_Off 1683 * was succesful. 1684 */ 1685 if (ret == DDI_SUCCESS) { 1686 if (px_link_wait4l1idle(csr_base) != DDI_SUCCESS) { 1687 DBG(DBG_PWR, px_p->px_dip, " Link is not at L1" 1688 " even though we received PME_To_ACK.\n"); 1689 /* 1690 * Workaround for hardware bug with P25. 1691 * Due to a hardware bug with P25, link state 1692 * will be Detect state rather than L1 after 1693 * link is transitioned to L23Ready state. Since 1694 * we don't know whether link is L23ready state 1695 * without Fire's state being L1_idle, we delay 1696 * here just to make sure that we wait till link 1697 * is transitioned to L23Ready state. 1698 */ 1699 delay(drv_usectohz(100 * MSEC_TO_USEC)); 1700 } 1701 pwr_p->pwr_link_lvl = PM_LEVEL_L3; 1702 1703 } 1704 mutex_exit(&pwr_p->pwr_lock); 1705 return (ret); 1706 } 1707 1708 /* 1709 * Message interrupt handler intended to be shared for both 1710 * PME and PME_TO_ACK msg handling, currently only handles 1711 * PME_To_ACK message. 1712 */ 1713 uint_t 1714 px_pmeq_intr(caddr_t arg) 1715 { 1716 px_t *px_p = (px_t *)arg; 1717 1718 DBG(DBG_PWR, px_p->px_dip, " PME_To_ACK received \n"); 1719 mutex_enter(&px_p->px_l23ready_lock); 1720 cv_broadcast(&px_p->px_l23ready_cv); 1721 if (px_p->px_pm_flags & PX_PME_TURNOFF_PENDING) { 1722 px_p->px_pm_flags |= PX_PMETOACK_RECVD; 1723 } else { 1724 /* 1725 * This maybe the second ack received. If so then, 1726 * we should be receiving it during wait4L1 stage. 1727 */ 1728 px_p->px_pmetoack_ignored++; 1729 } 1730 mutex_exit(&px_p->px_l23ready_lock); 1731 return (DDI_INTR_CLAIMED); 1732 } 1733 1734 static int 1735 px_pre_pwron_check(px_t *px_p) 1736 { 1737 pcie_pwr_t *pwr_p; 1738 1739 /* If no PM info, return failure */ 1740 if (!PCIE_PMINFO(px_p->px_dip) || 1741 !(pwr_p = PCIE_NEXUS_PMINFO(px_p->px_dip))) 1742 return (DDI_FAILURE); 1743 1744 /* 1745 * For the spec compliant downstream cards link down 1746 * is expected when the device is powered on. 1747 */ 1748 px_p->px_pm_flags |= PX_LDN_EXPECTED; 1749 return (pwr_p->pwr_link_lvl == PM_LEVEL_L3 ? DDI_SUCCESS : DDI_FAILURE); 1750 } 1751 1752 static int 1753 px_goto_l0(px_t *px_p) 1754 { 1755 pcie_pwr_t *pwr_p; 1756 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1757 caddr_t csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR]; 1758 int ret = DDI_SUCCESS; 1759 clock_t end, timeleft; 1760 int mutex_held = 1; 1761 1762 /* If no PM info, return failure */ 1763 if (!PCIE_PMINFO(px_p->px_dip) || 1764 !(pwr_p = PCIE_NEXUS_PMINFO(px_p->px_dip))) 1765 return (DDI_FAILURE); 1766 1767 mutex_enter(&pwr_p->pwr_lock); 1768 mutex_enter(&px_p->px_lupsoft_lock); 1769 /* Clear the LINKUP_RECVD receieved flag */ 1770 px_p->px_pm_flags &= ~PX_LINKUP_RECVD; 1771 /* 1772 * Set flags LUP_EXPECTED to inform FMA code that LUP is 1773 * expected as part of link training and no ereports should 1774 * be posted for this event. FMA code will clear this flag 1775 * after one instance of this event. In case of P25, there 1776 * will not be a LDN event. So clear the flag set at PRE_PWRON 1777 * time. 1778 */ 1779 px_p->px_pm_flags |= PX_LUP_EXPECTED; 1780 px_p->px_pm_flags &= ~PX_LDN_EXPECTED; 1781 if (px_link_retrain(csr_base) != DDI_SUCCESS) { 1782 ret = DDI_FAILURE; 1783 goto l0_done; 1784 } 1785 px_p->px_pm_flags |= PX_LINKUP_PENDING; 1786 1787 end = ddi_get_lbolt() + drv_usectohz(px_linkup_timeout); 1788 while (!(px_p->px_pm_flags & PX_LINKUP_RECVD)) { 1789 timeleft = cv_timedwait(&px_p->px_lup_cv, 1790 &px_p->px_lupsoft_lock, end); 1791 /* 1792 * if cv_timedwait returns -1, it is either 1793 * 1) timed out or 1794 * 2) there was a pre-mature wakeup but by the time 1795 * cv_timedwait is called again end < lbolt i.e. 1796 * end is in the past. 1797 * 3) By the time we make first cv_timedwait call, 1798 * end < lbolt is true. 1799 */ 1800 if (timeleft == -1) 1801 break; 1802 } 1803 if (!(px_p->px_pm_flags & PX_LINKUP_RECVD)) { 1804 /* 1805 * Either timedout or interrupt didn't get a 1806 * chance to grab the mutex and set the flag. 1807 * release the mutex and delay for sometime. 1808 * This will 1) give a chance for interrupt to 1809 * set the flag 2) creates a delay between two 1810 * consequetive requests. 1811 */ 1812 mutex_exit(&px_p->px_lupsoft_lock); 1813 mutex_held = 0; 1814 delay(drv_usectohz(50 * MSEC_TO_USEC)); 1815 if (!(px_p->px_pm_flags & PX_LINKUP_RECVD)) { 1816 ret = DDI_FAILURE; 1817 DBG(DBG_PWR, px_p->px_dip, " Timed out while waiting" 1818 " for link up\n"); 1819 } 1820 } 1821 px_p->px_pm_flags &= 1822 ~(PX_LINKUP_PENDING | PX_LINKUP_RECVD | PX_LUP_EXPECTED); 1823 1824 l0_done: 1825 if (mutex_held) 1826 mutex_exit(&px_p->px_lupsoft_lock); 1827 px_enable_detect_quiet(csr_base); 1828 if (ret == DDI_SUCCESS) 1829 pwr_p->pwr_link_lvl = PM_LEVEL_L0; 1830 mutex_exit(&pwr_p->pwr_lock); 1831 return (ret); 1832 } 1833 1834 uint_t 1835 px_lup_softintr(caddr_t arg) 1836 { 1837 px_t *px_p = (px_t *)arg; 1838 1839 DBG(DBG_PWR, px_p->px_dip, " Link up soft interrupt received \n"); 1840 mutex_enter(&px_p->px_lup_lock); 1841 if (!(px_p->px_lupsoft_pending > 0)) { 1842 /* Spurious */ 1843 mutex_exit(&px_p->px_lup_lock); 1844 return (DDI_INTR_UNCLAIMED); 1845 } 1846 px_p->px_lupsoft_pending--; 1847 if (px_p->px_lupsoft_pending > 0) { 1848 /* More than one lup soft intr posted - unlikely */ 1849 mutex_exit(&px_p->px_lup_lock); 1850 return (DDI_INTR_UNCLAIMED); 1851 } 1852 mutex_exit(&px_p->px_lup_lock); 1853 1854 mutex_enter(&px_p->px_lupsoft_lock); 1855 cv_broadcast(&px_p->px_lup_cv); 1856 if (px_p->px_pm_flags & PX_LINKUP_PENDING) { 1857 px_p->px_pm_flags |= PX_LINKUP_RECVD; 1858 } else { 1859 /* Nobody waiting for this! */ 1860 px_p->px_lup_ignored++; 1861 } 1862 mutex_exit(&px_p->px_lupsoft_lock); 1863 return (DDI_INTR_CLAIMED); 1864 } 1865 1866 /* 1867 * Extract the drivers binding name to identify which chip we're binding to. 1868 * Whenever a new bus bridge is created, the driver alias entry should be 1869 * added here to identify the device if needed. If a device isn't added, 1870 * the identity defaults to PX_CHIP_UNIDENTIFIED. 1871 */ 1872 static uint32_t 1873 px_identity_chip(px_t *px_p) 1874 { 1875 dev_info_t *dip = px_p->px_dip; 1876 char *name = ddi_binding_name(dip); 1877 uint32_t revision = 0; 1878 1879 revision = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 1880 "module-revision#", 0); 1881 1882 /* Check for Fire driver binding name */ 1883 if ((strcmp(name, "pci108e,80f0") == 0) || 1884 (strcmp(name, "pciex108e,80f0") == 0)) { 1885 DBG(DBG_ATTACH, dip, "px_identity_chip: %s%d: " 1886 "name %s module-revision %d\n", ddi_driver_name(dip), 1887 ddi_get_instance(dip), name, revision); 1888 1889 return (PX_CHIP_ID(PX_CHIP_FIRE, revision, 0x00)); 1890 } 1891 1892 DBG(DBG_ATTACH, dip, "%s%d: Unknown PCI Express Host bridge %s %x\n", 1893 ddi_driver_name(dip), ddi_get_instance(dip), name, revision); 1894 1895 return (PX_CHIP_UNIDENTIFIED); 1896 } 1897 1898 int 1899 px_err_add_intr(px_fault_t *px_fault_p) 1900 { 1901 dev_info_t *dip = px_fault_p->px_fh_dip; 1902 px_t *px_p = DIP_TO_STATE(dip); 1903 1904 VERIFY(add_ivintr(px_fault_p->px_fh_sysino, PX_ERR_PIL, 1905 px_fault_p->px_err_func, (caddr_t)px_fault_p, NULL) == 0); 1906 1907 px_ib_intr_enable(px_p, intr_dist_cpuid(), px_fault_p->px_intr_ino); 1908 1909 return (DDI_SUCCESS); 1910 } 1911 1912 void 1913 px_err_rem_intr(px_fault_t *px_fault_p) 1914 { 1915 dev_info_t *dip = px_fault_p->px_fh_dip; 1916 px_t *px_p = DIP_TO_STATE(dip); 1917 1918 rem_ivintr(px_fault_p->px_fh_sysino, NULL); 1919 1920 px_ib_intr_disable(px_p->px_ib_p, px_fault_p->px_intr_ino, 1921 IB_INTR_WAIT); 1922 } 1923 1924 #ifdef FMA 1925 void 1926 px_fill_rc_status(px_fault_t *px_fault_p, pciex_rc_error_regs_t *rc_status) 1927 { 1928 /* populate the rc_status by reading the registers - TBD */ 1929 } 1930 #endif /* FMA */ 1931 1932 /* 1933 * Unprotected raw reads/writes of fabric device's config space. 1934 * Only used for temporary PCI-E Fabric Error Handling. 1935 */ 1936 uint32_t 1937 px_fab_get(px_t *px_p, pcie_req_id_t bdf, uint16_t offset) { 1938 px_ranges_t *rp = px_p->px_ranges_p; 1939 uint64_t range_prop, base_addr; 1940 int bank = PCI_REG_ADDR_G(PCI_ADDR_CONFIG); 1941 uint32_t val; 1942 1943 /* Get Fire's Physical Base Address */ 1944 range_prop = (((uint64_t)(rp[bank].parent_high & 0x7ff)) << 32) | 1945 rp[bank].parent_low; 1946 1947 /* Get config space first. */ 1948 base_addr = range_prop + PX_BDF_TO_CFGADDR(bdf, offset); 1949 1950 val = ldphysio(base_addr); 1951 1952 return (LE_32(val)); 1953 } 1954 1955 void 1956 px_fab_set(px_t *px_p, pcie_req_id_t bdf, uint16_t offset, 1957 uint32_t val) { 1958 px_ranges_t *rp = px_p->px_ranges_p; 1959 uint64_t range_prop, base_addr; 1960 int bank = PCI_REG_ADDR_G(PCI_ADDR_CONFIG); 1961 1962 /* Get Fire's Physical Base Address */ 1963 range_prop = (((uint64_t)(rp[bank].parent_high & 0x7ff)) << 32) | 1964 rp[bank].parent_low; 1965 1966 /* Get config space first. */ 1967 base_addr = range_prop + PX_BDF_TO_CFGADDR(bdf, offset); 1968 1969 stphysio(base_addr, LE_32(val)); 1970 } 1971 1972 /* 1973 * cpr callback 1974 * 1975 * disable fabric error msg interrupt prior to suspending 1976 * all device drivers; re-enable fabric error msg interrupt 1977 * after all devices are resumed. 1978 */ 1979 static boolean_t 1980 px_cpr_callb(void *arg, int code) 1981 { 1982 px_t *px_p = (px_t *)arg; 1983 px_ib_t *ib_p = px_p->px_ib_p; 1984 px_pec_t *pec_p = px_p->px_pec_p; 1985 pxu_t *pxu_p = (pxu_t *)px_p->px_plat_p; 1986 caddr_t csr_base; 1987 devino_t ce_ino, nf_ino, f_ino; 1988 px_ib_ino_info_t *ce_ino_p, *nf_ino_p, *f_ino_p; 1989 uint64_t imu_log_enable, imu_intr_enable; 1990 uint64_t imu_log_mask, imu_intr_mask; 1991 1992 ce_ino = px_msiqid_to_devino(px_p, pec_p->pec_corr_msg_msiq_id); 1993 nf_ino = px_msiqid_to_devino(px_p, pec_p->pec_non_fatal_msg_msiq_id); 1994 f_ino = px_msiqid_to_devino(px_p, pec_p->pec_fatal_msg_msiq_id); 1995 csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR]; 1996 1997 imu_log_enable = CSR_XR(csr_base, IMU_ERROR_LOG_ENABLE); 1998 imu_intr_enable = CSR_XR(csr_base, IMU_INTERRUPT_ENABLE); 1999 2000 imu_log_mask = BITMASK(IMU_ERROR_LOG_ENABLE_FATAL_MES_NOT_EN_LOG_EN) | 2001 BITMASK(IMU_ERROR_LOG_ENABLE_NONFATAL_MES_NOT_EN_LOG_EN) | 2002 BITMASK(IMU_ERROR_LOG_ENABLE_COR_MES_NOT_EN_LOG_EN); 2003 2004 imu_intr_mask = 2005 BITMASK(IMU_INTERRUPT_ENABLE_FATAL_MES_NOT_EN_S_INT_EN) | 2006 BITMASK(IMU_INTERRUPT_ENABLE_NONFATAL_MES_NOT_EN_S_INT_EN) | 2007 BITMASK(IMU_INTERRUPT_ENABLE_COR_MES_NOT_EN_S_INT_EN) | 2008 BITMASK(IMU_INTERRUPT_ENABLE_FATAL_MES_NOT_EN_P_INT_EN) | 2009 BITMASK(IMU_INTERRUPT_ENABLE_NONFATAL_MES_NOT_EN_P_INT_EN) | 2010 BITMASK(IMU_INTERRUPT_ENABLE_COR_MES_NOT_EN_P_INT_EN); 2011 2012 switch (code) { 2013 case CB_CODE_CPR_CHKPT: 2014 /* disable imu rbne on corr/nonfatal/fatal errors */ 2015 CSR_XS(csr_base, IMU_ERROR_LOG_ENABLE, 2016 imu_log_enable & (~imu_log_mask)); 2017 2018 CSR_XS(csr_base, IMU_INTERRUPT_ENABLE, 2019 imu_intr_enable & (~imu_intr_mask)); 2020 2021 /* disable CORR intr mapping */ 2022 px_ib_intr_disable(ib_p, ce_ino, IB_INTR_NOWAIT); 2023 2024 /* disable NON FATAL intr mapping */ 2025 px_ib_intr_disable(ib_p, nf_ino, IB_INTR_NOWAIT); 2026 2027 /* disable FATAL intr mapping */ 2028 px_ib_intr_disable(ib_p, f_ino, IB_INTR_NOWAIT); 2029 2030 break; 2031 2032 case CB_CODE_CPR_RESUME: 2033 mutex_enter(&ib_p->ib_ino_lst_mutex); 2034 2035 ce_ino_p = px_ib_locate_ino(ib_p, ce_ino); 2036 nf_ino_p = px_ib_locate_ino(ib_p, nf_ino); 2037 f_ino_p = px_ib_locate_ino(ib_p, f_ino); 2038 2039 /* enable CORR intr mapping */ 2040 if (ce_ino_p) 2041 px_ib_intr_enable(px_p, ce_ino_p->ino_cpuid, ce_ino); 2042 else 2043 cmn_err(CE_WARN, "px_cpr_callb: RESUME unable to " 2044 "reenable PCIe Correctable msg intr.\n"); 2045 2046 /* enable NON FATAL intr mapping */ 2047 if (nf_ino_p) 2048 px_ib_intr_enable(px_p, nf_ino_p->ino_cpuid, nf_ino); 2049 else 2050 cmn_err(CE_WARN, "px_cpr_callb: RESUME unable to " 2051 "reenable PCIe Non Fatal msg intr.\n"); 2052 2053 /* enable FATAL intr mapping */ 2054 if (f_ino_p) 2055 px_ib_intr_enable(px_p, f_ino_p->ino_cpuid, f_ino); 2056 else 2057 cmn_err(CE_WARN, "px_cpr_callb: RESUME unable to " 2058 "reenable PCIe Fatal msg intr.\n"); 2059 2060 mutex_exit(&ib_p->ib_ino_lst_mutex); 2061 2062 /* enable corr/nonfatal/fatal not enable error */ 2063 CSR_XS(csr_base, IMU_ERROR_LOG_ENABLE, (imu_log_enable | 2064 (imu_log_mask & px_imu_log_mask))); 2065 CSR_XS(csr_base, IMU_INTERRUPT_ENABLE, (imu_intr_enable | 2066 (imu_intr_mask & px_imu_intr_mask))); 2067 2068 break; 2069 } 2070 2071 return (B_TRUE); 2072 } 2073 2074 /* 2075 * add cpr callback 2076 */ 2077 void 2078 px_cpr_add_callb(px_t *px_p) 2079 { 2080 px_p->px_cprcb_id = callb_add(px_cpr_callb, (void *)px_p, 2081 CB_CL_CPR_POST_USER, "px_cpr"); 2082 } 2083 2084 /* 2085 * remove cpr callback 2086 */ 2087 void 2088 px_cpr_rem_callb(px_t *px_p) 2089 { 2090 (void) callb_delete(px_p->px_cprcb_id); 2091 } 2092