17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <sys/types.h> 307c478bd9Sstevel@tonic-gate #include <sys/sunndi.h> 317c478bd9Sstevel@tonic-gate #include <sys/ddifm_impl.h> 327c478bd9Sstevel@tonic-gate #include <sys/fm/util.h> 337c478bd9Sstevel@tonic-gate #include <sys/fm/protocol.h> 347c478bd9Sstevel@tonic-gate #include <sys/fm/io/pci.h> 357c478bd9Sstevel@tonic-gate #include <sys/fm/io/ddi.h> 367c478bd9Sstevel@tonic-gate #include <sys/pci.h> 37*9164eb65Stimh #include <sys/pcie.h> 387c478bd9Sstevel@tonic-gate #include <sys/pci_impl.h> 397c478bd9Sstevel@tonic-gate #include <sys/epm.h> 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate int 437c478bd9Sstevel@tonic-gate pci_config_setup(dev_info_t *dip, ddi_acc_handle_t *handle) 447c478bd9Sstevel@tonic-gate { 457c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 467c478bd9Sstevel@tonic-gate ddi_device_acc_attr_t attr; 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate attr.devacc_attr_version = DDI_DEVICE_ATTR_V0; 497c478bd9Sstevel@tonic-gate attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC; 507c478bd9Sstevel@tonic-gate attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate /* Check for fault management capabilities */ 537c478bd9Sstevel@tonic-gate if (DDI_FM_ACC_ERR_CAP(ddi_fm_capable(dip))) 547c478bd9Sstevel@tonic-gate attr.devacc_attr_access = DDI_FLAGERR_ACC; 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate return (ddi_regs_map_setup(dip, 0, &cfgaddr, 0, 0, &attr, handle)); 577c478bd9Sstevel@tonic-gate } 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate void 607c478bd9Sstevel@tonic-gate pci_config_teardown(ddi_acc_handle_t *handle) 617c478bd9Sstevel@tonic-gate { 627c478bd9Sstevel@tonic-gate ddi_regs_map_free(handle); 637c478bd9Sstevel@tonic-gate } 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate /* 667c478bd9Sstevel@tonic-gate * pci_ereport_setup, pci_ereport_teardown, pci_ereport_post: 677c478bd9Sstevel@tonic-gate * Interfaces to be used by ereport capable PCI device drivers to setup, 687c478bd9Sstevel@tonic-gate * teardown, and post generic PCI error reports. This is to guarantee a 697c478bd9Sstevel@tonic-gate * consistant error report model for all PCI devices. Please see 707c478bd9Sstevel@tonic-gate * PSARC/2004/391. 717c478bd9Sstevel@tonic-gate */ 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate typedef struct pci_erpt { 747c478bd9Sstevel@tonic-gate caddr_t pci_cfg_addr; /* Config space address */ 757c478bd9Sstevel@tonic-gate ddi_acc_handle_t pci_cfg_hdl; /* Config space access handle */ 767c478bd9Sstevel@tonic-gate } pci_erpt_t; 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate pci_fm_err_t pci_err_tbl[] = { 797c478bd9Sstevel@tonic-gate PCI_DET_PERR, PCI_STAT_PERROR, NULL, 807c478bd9Sstevel@tonic-gate PCI_MDPE, PCI_STAT_S_PERROR, PCI_TARG_MDPE, 817c478bd9Sstevel@tonic-gate PCI_SIG_SERR, PCI_STAT_S_SYSERR, NULL, 827c478bd9Sstevel@tonic-gate PCI_MA, PCI_STAT_R_MAST_AB, PCI_TARG_MA, 837c478bd9Sstevel@tonic-gate PCI_REC_TA, PCI_STAT_R_TARG_AB, PCI_TARG_REC_TA, 847c478bd9Sstevel@tonic-gate PCI_SIG_TA, PCI_STAT_S_TARG_AB, NULL, 857c478bd9Sstevel@tonic-gate NULL, NULL, 867c478bd9Sstevel@tonic-gate }; 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate pci_fm_err_t pci_bdg_err_tbl[] = { 897c478bd9Sstevel@tonic-gate PCI_DET_PERR, PCI_STAT_PERROR, NULL, 907c478bd9Sstevel@tonic-gate PCI_MDPE, PCI_STAT_S_PERROR, NULL, 917c478bd9Sstevel@tonic-gate PCI_REC_SERR, PCI_STAT_S_SYSERR, NULL, 927c478bd9Sstevel@tonic-gate PCI_MA, PCI_STAT_R_MAST_AB, NULL, 937c478bd9Sstevel@tonic-gate PCI_REC_TA, PCI_STAT_R_TARG_AB, NULL, 947c478bd9Sstevel@tonic-gate PCI_SIG_TA, PCI_STAT_S_TARG_AB, NULL, 957c478bd9Sstevel@tonic-gate NULL, NULL, 967c478bd9Sstevel@tonic-gate }; 97*9164eb65Stimh 987c478bd9Sstevel@tonic-gate void 997c478bd9Sstevel@tonic-gate pci_ereport_setup(dev_info_t *dip) 1007c478bd9Sstevel@tonic-gate { 1017c478bd9Sstevel@tonic-gate struct dev_info *devi = DEVI(dip); 1027c478bd9Sstevel@tonic-gate struct i_ddi_fmhdl *fmhdl = devi->devi_fmhdl; 1037c478bd9Sstevel@tonic-gate pci_erpt_t *erpt_p; 1047c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 105*9164eb65Stimh uint16_t pci_devstat = 0; 106*9164eb65Stimh uint16_t pcie_cap = 0; 107*9164eb65Stimh uint8_t ecap_ptr = 0; 108*9164eb65Stimh uint8_t cap_ptr = 0; 109*9164eb65Stimh uint8_t cap_id = 0; 110*9164eb65Stimh int have_pciex; 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate if (!DDI_FM_EREPORT_CAP(ddi_fm_capable(dip))) { 1137c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_SLEEP); 1147c478bd9Sstevel@tonic-gate return; 1157c478bd9Sstevel@tonic-gate } 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate ASSERT(fmhdl); 1187c478bd9Sstevel@tonic-gate ASSERT(fmhdl->fh_bus_specific == NULL); 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate if ((erpt_p = kmem_zalloc(sizeof (pci_erpt_t), KM_SLEEP)) == NULL) 1217c478bd9Sstevel@tonic-gate return; 1227c478bd9Sstevel@tonic-gate 123*9164eb65Stimh /* 124*9164eb65Stimh * Setup config space and store config address 125*9164eb65Stimh * in pci_erpt struct. 126*9164eb65Stimh */ 1277c478bd9Sstevel@tonic-gate if (pci_config_setup(dip, &erpt_p->pci_cfg_hdl) == DDI_SUCCESS) { 1287c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(erpt_p->pci_cfg_hdl); 1297c478bd9Sstevel@tonic-gate erpt_p->pci_cfg_addr = (caddr_t)hp->ah_addr; 1307c478bd9Sstevel@tonic-gate fmhdl->fh_bus_specific = (void *)erpt_p; 131*9164eb65Stimh } else { 132*9164eb65Stimh return; 133*9164eb65Stimh } 134*9164eb65Stimh 135*9164eb65Stimh /* 136*9164eb65Stimh * Determine if this device supports a capabilities list. We 137*9164eb65Stimh * do so by looking at a bit in the status register. If we are 138*9164eb65Stimh * unable to retrieve the status register, something is horribly 139*9164eb65Stimh * wrong and we should just bail. 140*9164eb65Stimh */ 141*9164eb65Stimh if ((pci_devstat = ddi_get16(erpt_p->pci_cfg_hdl, 142*9164eb65Stimh (uint16_t *)(erpt_p->pci_cfg_addr + PCI_CONF_STAT))) == 0xff) 143*9164eb65Stimh return; 144*9164eb65Stimh if ((pci_devstat & PCI_STAT_CAP) == 0) 145*9164eb65Stimh return; 146*9164eb65Stimh 147*9164eb65Stimh /* 148*9164eb65Stimh * Determine if we are on a machine with pci express. We do so 149*9164eb65Stimh * by looping through the capabilities of the device and looking 150*9164eb65Stimh * to see if one of those capabilities is support of PCI 151*9164eb65Stimh * express. 152*9164eb65Stimh */ 153*9164eb65Stimh have_pciex = 0; 154*9164eb65Stimh if ((cap_ptr = ddi_get8(erpt_p->pci_cfg_hdl, 155*9164eb65Stimh (uint8_t *)(erpt_p->pci_cfg_addr + PCI_CONF_CAP_PTR))) != 156*9164eb65Stimh 0xff) { 157*9164eb65Stimh while ((cap_id = ddi_get8(erpt_p->pci_cfg_hdl, 158*9164eb65Stimh (uint8_t *)(erpt_p->pci_cfg_addr + cap_ptr))) != 159*9164eb65Stimh 0xff) { 160*9164eb65Stimh if (cap_id == PCI_CAP_ID_PCI_E) { 161*9164eb65Stimh ecap_ptr = cap_ptr; 162*9164eb65Stimh have_pciex = 1; 163*9164eb65Stimh break; 164*9164eb65Stimh } 165*9164eb65Stimh if ((cap_ptr = ddi_get8(erpt_p->pci_cfg_hdl, 166*9164eb65Stimh (uint8_t *)(erpt_p->pci_cfg_addr + 167*9164eb65Stimh cap_ptr + 1))) == 0xff || cap_ptr == 0) 168*9164eb65Stimh break; 169*9164eb65Stimh } 170*9164eb65Stimh } 171*9164eb65Stimh 172*9164eb65Stimh /* 173*9164eb65Stimh * If not pci express, we're done 174*9164eb65Stimh */ 175*9164eb65Stimh if (have_pciex == 0) 176*9164eb65Stimh return; 177*9164eb65Stimh 178*9164eb65Stimh /* 179*9164eb65Stimh * Save and export the pci express capabilities reg. 180*9164eb65Stimh */ 181*9164eb65Stimh pcie_cap = ddi_get16(erpt_p->pci_cfg_hdl, 182*9164eb65Stimh (uint16_t *)(erpt_p->pci_cfg_addr + ecap_ptr + PCIE_PCIECAP)); 183*9164eb65Stimh (void) ndi_prop_update_int(DDI_DEV_T_NONE, 184*9164eb65Stimh dip, SAVED_PCIEX_CAP_REG, pcie_cap); 185*9164eb65Stimh 186*9164eb65Stimh /* 187*9164eb65Stimh * Find and export any slot capabilities register 188*9164eb65Stimh */ 189*9164eb65Stimh if (pcie_cap & PCIE_PCIECAP_SLOT_IMPL) { 190*9164eb65Stimh int sltcap = ddi_get32(erpt_p->pci_cfg_hdl, 191*9164eb65Stimh (uint32_t *) 192*9164eb65Stimh (erpt_p->pci_cfg_addr + ecap_ptr + PCIE_SLOTCAP)); 193*9164eb65Stimh (void) ndi_prop_update_int(DDI_DEV_T_NONE, 194*9164eb65Stimh dip, SAVED_PCIEX_SLOTCAP_REG, sltcap); 1957c478bd9Sstevel@tonic-gate } 1967c478bd9Sstevel@tonic-gate } 1977c478bd9Sstevel@tonic-gate 1987c478bd9Sstevel@tonic-gate void 1997c478bd9Sstevel@tonic-gate pci_ereport_teardown(dev_info_t *dip) 2007c478bd9Sstevel@tonic-gate { 2017c478bd9Sstevel@tonic-gate struct i_ddi_fmhdl *fmhdl = DEVI(dip)->devi_fmhdl; 2027c478bd9Sstevel@tonic-gate pci_erpt_t *erpt_p; 2037c478bd9Sstevel@tonic-gate 2047c478bd9Sstevel@tonic-gate if (!DDI_FM_EREPORT_CAP(ddi_fm_capable(dip))) { 2057c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_SLEEP); 2067c478bd9Sstevel@tonic-gate } 2077c478bd9Sstevel@tonic-gate 2087c478bd9Sstevel@tonic-gate ASSERT(fmhdl); 2097c478bd9Sstevel@tonic-gate 2107c478bd9Sstevel@tonic-gate erpt_p = (pci_erpt_t *)fmhdl->fh_bus_specific; 2117c478bd9Sstevel@tonic-gate if (erpt_p == NULL) 2127c478bd9Sstevel@tonic-gate return; 2137c478bd9Sstevel@tonic-gate 214*9164eb65Stimh (void) ndi_prop_remove(DDI_DEV_T_NONE, dip, SAVED_PCIEX_CAP_REG); 215*9164eb65Stimh (void) ndi_prop_remove(DDI_DEV_T_NONE, dip, SAVED_PCIEX_SLOTCAP_REG); 2167c478bd9Sstevel@tonic-gate pci_config_teardown(&erpt_p->pci_cfg_hdl); 2177c478bd9Sstevel@tonic-gate kmem_free(erpt_p, sizeof (pci_erpt_t)); 2187c478bd9Sstevel@tonic-gate fmhdl->fh_bus_specific = NULL; 2197c478bd9Sstevel@tonic-gate } 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate void 2227c478bd9Sstevel@tonic-gate pci_ereport_post(dev_info_t *dip, ddi_fm_error_t *derr, uint16_t *status) 2237c478bd9Sstevel@tonic-gate { 2247c478bd9Sstevel@tonic-gate struct i_ddi_fmhdl *fmhdl; 2257c478bd9Sstevel@tonic-gate pci_erpt_t *erpt_p; 2267c478bd9Sstevel@tonic-gate char buf[FM_MAX_CLASS]; 2277c478bd9Sstevel@tonic-gate uint16_t cfg_comm = 0xffff; 2287c478bd9Sstevel@tonic-gate uint16_t cfg_stat = 0xffff; 2297c478bd9Sstevel@tonic-gate int i; 2307c478bd9Sstevel@tonic-gate fmhdl = DEVI(dip)->devi_fmhdl; 2317c478bd9Sstevel@tonic-gate 2327c478bd9Sstevel@tonic-gate if (!DDI_FM_EREPORT_CAP(ddi_fm_capable(dip))) { 2337c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_NOSLEEP); 2347c478bd9Sstevel@tonic-gate return; 2357c478bd9Sstevel@tonic-gate } 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate ASSERT(fmhdl); 2387c478bd9Sstevel@tonic-gate 2397c478bd9Sstevel@tonic-gate derr->fme_ena = derr->fme_ena ? derr->fme_ena : fm_ena_generate(0, 2407c478bd9Sstevel@tonic-gate FM_ENA_FMT1); 2417c478bd9Sstevel@tonic-gate 2427c478bd9Sstevel@tonic-gate erpt_p = (pci_erpt_t *)fmhdl->fh_bus_specific; 2437c478bd9Sstevel@tonic-gate if (erpt_p == NULL) { 2447c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_NOSLEEP); 2457c478bd9Sstevel@tonic-gate return; 2467c478bd9Sstevel@tonic-gate } 2477c478bd9Sstevel@tonic-gate 2487c478bd9Sstevel@tonic-gate if ((cfg_stat = ddi_get16(erpt_p->pci_cfg_hdl, 2497c478bd9Sstevel@tonic-gate (uint16_t *)(erpt_p->pci_cfg_addr + PCI_CONF_STAT))) == 0xffff) { 2507c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2517c478bd9Sstevel@tonic-gate PCI_ERROR_SUBCLASS, PCI_NR); 2527c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, DDI_NOSLEEP, 2537c478bd9Sstevel@tonic-gate FM_VERSION, DATA_TYPE_UINT8, 0, NULL); 2547c478bd9Sstevel@tonic-gate goto done; 2557c478bd9Sstevel@tonic-gate } 2567c478bd9Sstevel@tonic-gate if ((cfg_comm = ddi_get16(erpt_p->pci_cfg_hdl, 2577c478bd9Sstevel@tonic-gate (uint16_t *)(erpt_p->pci_cfg_addr + PCI_CONF_COMM))) == 0xffff) { 2587c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2597c478bd9Sstevel@tonic-gate PCI_ERROR_SUBCLASS, PCI_NR); 2607c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, DDI_NOSLEEP, 2617c478bd9Sstevel@tonic-gate FM_VERSION, DATA_TYPE_UINT8, 0, NULL); 2627c478bd9Sstevel@tonic-gate goto done; 2637c478bd9Sstevel@tonic-gate } 2647c478bd9Sstevel@tonic-gate 2657c478bd9Sstevel@tonic-gate if (derr->fme_flag == DDI_FM_ERR_UNEXPECTED) { 2667c478bd9Sstevel@tonic-gate for (i = 0; pci_err_tbl[i].err_class != NULL; i++) { 2677c478bd9Sstevel@tonic-gate if (cfg_stat & pci_err_tbl[i].reg_bit) { 2687c478bd9Sstevel@tonic-gate 2697c478bd9Sstevel@tonic-gate /* 2707c478bd9Sstevel@tonic-gate * Generate an ereport for this error bit. 2717c478bd9Sstevel@tonic-gate */ 2727c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2737c478bd9Sstevel@tonic-gate PCI_ERROR_SUBCLASS, 2747c478bd9Sstevel@tonic-gate pci_err_tbl[i].err_class); 2757c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, 2767c478bd9Sstevel@tonic-gate DDI_NOSLEEP, FM_VERSION, DATA_TYPE_UINT8, 0, 2777c478bd9Sstevel@tonic-gate PCI_CONFIG_STATUS, DATA_TYPE_UINT16, 2787c478bd9Sstevel@tonic-gate cfg_stat, PCI_CONFIG_COMMAND, 2797c478bd9Sstevel@tonic-gate DATA_TYPE_UINT16, cfg_comm, NULL); 2807c478bd9Sstevel@tonic-gate 2817c478bd9Sstevel@tonic-gate /* 2827c478bd9Sstevel@tonic-gate * Generate a corresponding ereport on behalf 2837c478bd9Sstevel@tonic-gate * of the target (the parent dip) of the 2847c478bd9Sstevel@tonic-gate * transaction. 2857c478bd9Sstevel@tonic-gate */ 2867c478bd9Sstevel@tonic-gate if (pci_err_tbl[i].terr_class != NULL && 2877c478bd9Sstevel@tonic-gate DDI_FM_EREPORT_CAP(ddi_fm_capable( 2887c478bd9Sstevel@tonic-gate (dev_info_t *)DEVI(dip)->devi_parent))) { 2897c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, 2907c478bd9Sstevel@tonic-gate "%s.%s", PCI_ERROR_SUBCLASS, 2917c478bd9Sstevel@tonic-gate pci_err_tbl[i].terr_class); 2927c478bd9Sstevel@tonic-gate ddi_fm_ereport_post((dev_info_t *) 2937c478bd9Sstevel@tonic-gate DEVI(dip)->devi_parent, buf, 2947c478bd9Sstevel@tonic-gate derr->fme_ena, DDI_NOSLEEP, 2957c478bd9Sstevel@tonic-gate FM_VERSION, DATA_TYPE_UINT8, 0, 2967c478bd9Sstevel@tonic-gate NULL); 2977c478bd9Sstevel@tonic-gate } 2987c478bd9Sstevel@tonic-gate } 2997c478bd9Sstevel@tonic-gate } 3007c478bd9Sstevel@tonic-gate } 3017c478bd9Sstevel@tonic-gate 3027c478bd9Sstevel@tonic-gate /* 3037c478bd9Sstevel@tonic-gate * Clear error bits 3047c478bd9Sstevel@tonic-gate */ 3057c478bd9Sstevel@tonic-gate ddi_put16(erpt_p->pci_cfg_hdl, 3067c478bd9Sstevel@tonic-gate (uint16_t *)(erpt_p->pci_cfg_addr + PCI_CONF_STAT), 3077c478bd9Sstevel@tonic-gate (uint16_t)cfg_stat); 3087c478bd9Sstevel@tonic-gate done: 3097c478bd9Sstevel@tonic-gate if (status != NULL) 3107c478bd9Sstevel@tonic-gate *status = cfg_stat; 3117c478bd9Sstevel@tonic-gate } 3127c478bd9Sstevel@tonic-gate 3137c478bd9Sstevel@tonic-gate /* 3147c478bd9Sstevel@tonic-gate * Generic pci-pci bridge error report function 3157c478bd9Sstevel@tonic-gate */ 3167c478bd9Sstevel@tonic-gate void 3177c478bd9Sstevel@tonic-gate pci_bdg_ereport_post(dev_info_t *dip, ddi_fm_error_t *derr, uint16_t *status) 3187c478bd9Sstevel@tonic-gate { 3197c478bd9Sstevel@tonic-gate struct i_ddi_fmhdl *fmhdl; 3207c478bd9Sstevel@tonic-gate pci_erpt_t *erpt_p; 3217c478bd9Sstevel@tonic-gate char buf[FM_MAX_CLASS]; 3227c478bd9Sstevel@tonic-gate uint16_t bdg_ctrl = 0xffff; 3237c478bd9Sstevel@tonic-gate uint16_t cfg_sec_stat = 0xffff; 3247c478bd9Sstevel@tonic-gate int i; 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate if (!DDI_FM_EREPORT_CAP(ddi_fm_capable(dip))) { 3277c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_NOSLEEP); 3287c478bd9Sstevel@tonic-gate return; 3297c478bd9Sstevel@tonic-gate } 3307c478bd9Sstevel@tonic-gate 3317c478bd9Sstevel@tonic-gate fmhdl = DEVI(dip)->devi_fmhdl; 3327c478bd9Sstevel@tonic-gate 3337c478bd9Sstevel@tonic-gate ASSERT(fmhdl); 3347c478bd9Sstevel@tonic-gate 3357c478bd9Sstevel@tonic-gate derr->fme_ena = derr->fme_ena ? derr->fme_ena : fm_ena_generate(0, 3367c478bd9Sstevel@tonic-gate FM_ENA_FMT1); 3377c478bd9Sstevel@tonic-gate 3387c478bd9Sstevel@tonic-gate erpt_p = (pci_erpt_t *)fmhdl->fh_bus_specific; 3397c478bd9Sstevel@tonic-gate if (erpt_p == NULL) { 3407c478bd9Sstevel@tonic-gate i_ddi_drv_ereport_post(dip, DVR_EFMCAP, NULL, DDI_NOSLEEP); 3417c478bd9Sstevel@tonic-gate return; 3427c478bd9Sstevel@tonic-gate } 3437c478bd9Sstevel@tonic-gate 3447c478bd9Sstevel@tonic-gate if ((cfg_sec_stat = ddi_get16(erpt_p->pci_cfg_hdl, 3457c478bd9Sstevel@tonic-gate (uint16_t *)(erpt_p->pci_cfg_addr + PCI_BCNF_SEC_STATUS))) 3467c478bd9Sstevel@tonic-gate == 0xffff) { 3477c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", PCI_ERROR_SUBCLASS, 3487c478bd9Sstevel@tonic-gate PCI_NR); 3497c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, DDI_NOSLEEP, 3507c478bd9Sstevel@tonic-gate FM_VERSION, DATA_TYPE_UINT8, 0, NULL); 3517c478bd9Sstevel@tonic-gate goto done; 3527c478bd9Sstevel@tonic-gate } 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate if ((bdg_ctrl = ddi_get16(erpt_p->pci_cfg_hdl, 3557c478bd9Sstevel@tonic-gate (uint16_t *)(erpt_p->pci_cfg_addr + PCI_BCNF_BCNTRL))) == 0xffff) { 3567c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", PCI_ERROR_SUBCLASS, 3577c478bd9Sstevel@tonic-gate PCI_NR); 3587c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, DDI_NOSLEEP, 3597c478bd9Sstevel@tonic-gate FM_VERSION, DATA_TYPE_UINT8, 0, NULL); 3607c478bd9Sstevel@tonic-gate goto done; 3617c478bd9Sstevel@tonic-gate } 3627c478bd9Sstevel@tonic-gate 3637c478bd9Sstevel@tonic-gate if (derr->fme_flag == DDI_FM_ERR_UNEXPECTED) { 3647c478bd9Sstevel@tonic-gate if (bdg_ctrl & PCI_BCNF_BCNTRL_DTO_STAT) { 3657c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 3667c478bd9Sstevel@tonic-gate PCI_ERROR_SUBCLASS, PCI_DTO); 3677c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, 3687c478bd9Sstevel@tonic-gate DDI_NOSLEEP, FM_VERSION, DATA_TYPE_UINT8, 0, 3697c478bd9Sstevel@tonic-gate PCI_SEC_CONFIG_STATUS, DATA_TYPE_UINT16, 3707c478bd9Sstevel@tonic-gate cfg_sec_stat, PCI_BCNTRL, DATA_TYPE_UINT16, 3717c478bd9Sstevel@tonic-gate bdg_ctrl, NULL); 3727c478bd9Sstevel@tonic-gate } 3737c478bd9Sstevel@tonic-gate 3747c478bd9Sstevel@tonic-gate for (i = 0; pci_bdg_err_tbl[i].err_class != NULL; i++) { 3757c478bd9Sstevel@tonic-gate if (cfg_sec_stat & pci_bdg_err_tbl[i].reg_bit) { 3767c478bd9Sstevel@tonic-gate (void) snprintf(buf, FM_MAX_CLASS, "%s.%s-%s", 3777c478bd9Sstevel@tonic-gate PCI_ERROR_SUBCLASS, PCI_SEC_ERROR_SUBCLASS, 3787c478bd9Sstevel@tonic-gate pci_bdg_err_tbl[i].err_class); 3797c478bd9Sstevel@tonic-gate ddi_fm_ereport_post(dip, buf, derr->fme_ena, 3807c478bd9Sstevel@tonic-gate DDI_NOSLEEP, FM_VERSION, DATA_TYPE_UINT8, 0, 3817c478bd9Sstevel@tonic-gate PCI_SEC_CONFIG_STATUS, DATA_TYPE_UINT16, 3827c478bd9Sstevel@tonic-gate cfg_sec_stat, PCI_BCNTRL, DATA_TYPE_UINT16, 3837c478bd9Sstevel@tonic-gate bdg_ctrl, NULL); 3847c478bd9Sstevel@tonic-gate } 3857c478bd9Sstevel@tonic-gate } 3867c478bd9Sstevel@tonic-gate } 3877c478bd9Sstevel@tonic-gate 3887c478bd9Sstevel@tonic-gate /* 3897c478bd9Sstevel@tonic-gate * Clear error bits 3907c478bd9Sstevel@tonic-gate */ 3917c478bd9Sstevel@tonic-gate ddi_put16(erpt_p->pci_cfg_hdl, (uint16_t *) 3927c478bd9Sstevel@tonic-gate (erpt_p->pci_cfg_addr + PCI_BCNF_SEC_STATUS), 3937c478bd9Sstevel@tonic-gate (uint16_t)cfg_sec_stat); 3947c478bd9Sstevel@tonic-gate ddi_put16(erpt_p->pci_cfg_hdl, (uint16_t *) 3957c478bd9Sstevel@tonic-gate (erpt_p->pci_cfg_addr + PCI_BCNF_BCNTRL), 3967c478bd9Sstevel@tonic-gate (uint16_t)bdg_ctrl); 3977c478bd9Sstevel@tonic-gate 3987c478bd9Sstevel@tonic-gate done: 3997c478bd9Sstevel@tonic-gate if (status != NULL) 4007c478bd9Sstevel@tonic-gate *status = cfg_sec_stat; 4017c478bd9Sstevel@tonic-gate } 4027c478bd9Sstevel@tonic-gate 4037c478bd9Sstevel@tonic-gate /* 4047c478bd9Sstevel@tonic-gate * Generic pci-pci bridge error analysis function 4057c478bd9Sstevel@tonic-gate */ 4067c478bd9Sstevel@tonic-gate int 4077c478bd9Sstevel@tonic-gate pci_bdg_check_status(dev_info_t *dip, ddi_fm_error_t *derr, 4087c478bd9Sstevel@tonic-gate uint16_t pci_cfg_stat, uint16_t pci_cfg_sec_stat) 4097c478bd9Sstevel@tonic-gate { 4107c478bd9Sstevel@tonic-gate int ret; 4117c478bd9Sstevel@tonic-gate int fatal = 0; 4127c478bd9Sstevel@tonic-gate int nonfatal = 0; 4137c478bd9Sstevel@tonic-gate int unknown = 0; 4147c478bd9Sstevel@tonic-gate 4157c478bd9Sstevel@tonic-gate if (derr->fme_flag == DDI_FM_ERR_POKE) { 4167c478bd9Sstevel@tonic-gate /* 4177c478bd9Sstevel@tonic-gate * special case for pokes - we only consider master abort 4187c478bd9Sstevel@tonic-gate * and target abort as nonfatal. Sserr with no master abort is 4197c478bd9Sstevel@tonic-gate * fatal, but master/target abort can come in on separate 4207c478bd9Sstevel@tonic-gate * instance, so return unknown and parent will determine if 4217c478bd9Sstevel@tonic-gate * nonfatal (if another child returned nonfatal - ie master 4227c478bd9Sstevel@tonic-gate * or target abort) or fatal otherwise 4237c478bd9Sstevel@tonic-gate */ 4247c478bd9Sstevel@tonic-gate if (pci_cfg_sec_stat & (PCI_STAT_R_TARG_AB | 4257c478bd9Sstevel@tonic-gate PCI_STAT_R_MAST_AB)) 4267c478bd9Sstevel@tonic-gate nonfatal++; 4277c478bd9Sstevel@tonic-gate if (pci_cfg_stat & PCI_STAT_S_SYSERR) 4287c478bd9Sstevel@tonic-gate unknown++; 4297c478bd9Sstevel@tonic-gate } else if (derr->fme_flag == DDI_FM_ERR_UNEXPECTED) { 4307c478bd9Sstevel@tonic-gate /* 4317c478bd9Sstevel@tonic-gate * Only sserr on primary bus is considered fatal. 4327c478bd9Sstevel@tonic-gate * In all other conditions, the bridge has been able to notify 4337c478bd9Sstevel@tonic-gate * the initiator of the error condition, so let the initiator 4347c478bd9Sstevel@tonic-gate * (be it the host for PIO or the leaf device for DMA) handle it 4357c478bd9Sstevel@tonic-gate */ 4367c478bd9Sstevel@tonic-gate if (pci_cfg_stat & PCI_STAT_S_SYSERR) 4377c478bd9Sstevel@tonic-gate fatal++; 4387c478bd9Sstevel@tonic-gate if (pci_cfg_stat & (PCI_STAT_PERROR | 4397c478bd9Sstevel@tonic-gate PCI_STAT_R_MAST_AB | PCI_STAT_S_PERROR | 4407c478bd9Sstevel@tonic-gate PCI_STAT_R_TARG_AB | PCI_STAT_S_TARG_AB)) 4417c478bd9Sstevel@tonic-gate nonfatal++; 4427c478bd9Sstevel@tonic-gate if (pci_cfg_sec_stat & (PCI_STAT_R_TARG_AB | 4437c478bd9Sstevel@tonic-gate PCI_STAT_S_SYSERR | PCI_STAT_R_MAST_AB | PCI_STAT_S_PERROR | 4447c478bd9Sstevel@tonic-gate PCI_STAT_PERROR | PCI_STAT_S_TARG_AB)) 4457c478bd9Sstevel@tonic-gate nonfatal++; 4467c478bd9Sstevel@tonic-gate } 4477c478bd9Sstevel@tonic-gate 4487c478bd9Sstevel@tonic-gate /* 4497c478bd9Sstevel@tonic-gate * now check children below the bridge 4507c478bd9Sstevel@tonic-gate */ 4517c478bd9Sstevel@tonic-gate ret = ndi_fm_handler_dispatch(dip, NULL, derr); 4527c478bd9Sstevel@tonic-gate if (ret == DDI_FM_FATAL) 4537c478bd9Sstevel@tonic-gate fatal++; 4547c478bd9Sstevel@tonic-gate else if (ret == DDI_FM_NONFATAL) 4557c478bd9Sstevel@tonic-gate nonfatal++; 4567c478bd9Sstevel@tonic-gate else if (ret == DDI_FM_UNKNOWN) 4577c478bd9Sstevel@tonic-gate unknown++; 4587c478bd9Sstevel@tonic-gate 4597c478bd9Sstevel@tonic-gate return (fatal ? DDI_FM_FATAL : (nonfatal ? DDI_FM_NONFATAL : 4607c478bd9Sstevel@tonic-gate (unknown ? DDI_FM_UNKNOWN : DDI_FM_OK))); 4617c478bd9Sstevel@tonic-gate } 4627c478bd9Sstevel@tonic-gate 4637c478bd9Sstevel@tonic-gate #ifdef _LP64 4647c478bd9Sstevel@tonic-gate uint8_t 4657c478bd9Sstevel@tonic-gate pci_config_get8(ddi_acc_handle_t handle, off_t offset) 4667c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 4677c478bd9Sstevel@tonic-gate uint8_t 4687c478bd9Sstevel@tonic-gate pci_config_getb(ddi_acc_handle_t handle, off_t offset) 4697c478bd9Sstevel@tonic-gate #endif 4707c478bd9Sstevel@tonic-gate { 4717c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 4727c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 4737c478bd9Sstevel@tonic-gate 4747c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 4757c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 4767c478bd9Sstevel@tonic-gate return (ddi_get8(handle, (uint8_t *)cfgaddr)); 4777c478bd9Sstevel@tonic-gate } 4787c478bd9Sstevel@tonic-gate 4797c478bd9Sstevel@tonic-gate #ifdef _LP64 4807c478bd9Sstevel@tonic-gate uint16_t 4817c478bd9Sstevel@tonic-gate pci_config_get16(ddi_acc_handle_t handle, off_t offset) 4827c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 4837c478bd9Sstevel@tonic-gate uint16_t 4847c478bd9Sstevel@tonic-gate pci_config_getw(ddi_acc_handle_t handle, off_t offset) 4857c478bd9Sstevel@tonic-gate #endif 4867c478bd9Sstevel@tonic-gate { 4877c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 4887c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 4897c478bd9Sstevel@tonic-gate 4907c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 4917c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 4927c478bd9Sstevel@tonic-gate return (ddi_get16(handle, (uint16_t *)cfgaddr)); 4937c478bd9Sstevel@tonic-gate } 4947c478bd9Sstevel@tonic-gate 4957c478bd9Sstevel@tonic-gate #ifdef _LP64 4967c478bd9Sstevel@tonic-gate uint32_t 4977c478bd9Sstevel@tonic-gate pci_config_get32(ddi_acc_handle_t handle, off_t offset) 4987c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 4997c478bd9Sstevel@tonic-gate uint32_t 5007c478bd9Sstevel@tonic-gate pci_config_getl(ddi_acc_handle_t handle, off_t offset) 5017c478bd9Sstevel@tonic-gate #endif 5027c478bd9Sstevel@tonic-gate { 5037c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5047c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5057c478bd9Sstevel@tonic-gate 5067c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5077c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5087c478bd9Sstevel@tonic-gate return (ddi_get32(handle, (uint32_t *)cfgaddr)); 5097c478bd9Sstevel@tonic-gate } 5107c478bd9Sstevel@tonic-gate 5117c478bd9Sstevel@tonic-gate #ifdef _LP64 5127c478bd9Sstevel@tonic-gate uint64_t 5137c478bd9Sstevel@tonic-gate pci_config_get64(ddi_acc_handle_t handle, off_t offset) 5147c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 5157c478bd9Sstevel@tonic-gate uint64_t 5167c478bd9Sstevel@tonic-gate pci_config_getll(ddi_acc_handle_t handle, off_t offset) 5177c478bd9Sstevel@tonic-gate #endif 5187c478bd9Sstevel@tonic-gate { 5197c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5207c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5217c478bd9Sstevel@tonic-gate 5227c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5237c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5247c478bd9Sstevel@tonic-gate return (ddi_get64(handle, (uint64_t *)cfgaddr)); 5257c478bd9Sstevel@tonic-gate } 5267c478bd9Sstevel@tonic-gate 5277c478bd9Sstevel@tonic-gate #ifdef _LP64 5287c478bd9Sstevel@tonic-gate void 5297c478bd9Sstevel@tonic-gate pci_config_put8(ddi_acc_handle_t handle, off_t offset, uint8_t value) 5307c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 5317c478bd9Sstevel@tonic-gate void 5327c478bd9Sstevel@tonic-gate pci_config_putb(ddi_acc_handle_t handle, off_t offset, uint8_t value) 5337c478bd9Sstevel@tonic-gate #endif 5347c478bd9Sstevel@tonic-gate { 5357c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5367c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5377c478bd9Sstevel@tonic-gate 5387c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5397c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5407c478bd9Sstevel@tonic-gate ddi_put8(handle, (uint8_t *)cfgaddr, value); 5417c478bd9Sstevel@tonic-gate } 5427c478bd9Sstevel@tonic-gate 5437c478bd9Sstevel@tonic-gate #ifdef _LP64 5447c478bd9Sstevel@tonic-gate void 5457c478bd9Sstevel@tonic-gate pci_config_put16(ddi_acc_handle_t handle, off_t offset, uint16_t value) 5467c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 5477c478bd9Sstevel@tonic-gate void 5487c478bd9Sstevel@tonic-gate pci_config_putw(ddi_acc_handle_t handle, off_t offset, uint16_t value) 5497c478bd9Sstevel@tonic-gate #endif 5507c478bd9Sstevel@tonic-gate { 5517c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5527c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5537c478bd9Sstevel@tonic-gate 5547c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5557c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5567c478bd9Sstevel@tonic-gate ddi_put16(handle, (uint16_t *)cfgaddr, value); 5577c478bd9Sstevel@tonic-gate } 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate #ifdef _LP64 5607c478bd9Sstevel@tonic-gate void 5617c478bd9Sstevel@tonic-gate pci_config_put32(ddi_acc_handle_t handle, off_t offset, uint32_t value) 5627c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 5637c478bd9Sstevel@tonic-gate void 5647c478bd9Sstevel@tonic-gate pci_config_putl(ddi_acc_handle_t handle, off_t offset, uint32_t value) 5657c478bd9Sstevel@tonic-gate #endif 5667c478bd9Sstevel@tonic-gate { 5677c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5687c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5697c478bd9Sstevel@tonic-gate 5707c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5717c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5727c478bd9Sstevel@tonic-gate ddi_put32(handle, (uint32_t *)cfgaddr, value); 5737c478bd9Sstevel@tonic-gate } 5747c478bd9Sstevel@tonic-gate 5757c478bd9Sstevel@tonic-gate #ifdef _LP64 5767c478bd9Sstevel@tonic-gate void 5777c478bd9Sstevel@tonic-gate pci_config_put64(ddi_acc_handle_t handle, off_t offset, uint64_t value) 5787c478bd9Sstevel@tonic-gate #else /* _ILP32 */ 5797c478bd9Sstevel@tonic-gate void 5807c478bd9Sstevel@tonic-gate pci_config_putll(ddi_acc_handle_t handle, off_t offset, uint64_t value) 5817c478bd9Sstevel@tonic-gate #endif 5827c478bd9Sstevel@tonic-gate { 5837c478bd9Sstevel@tonic-gate caddr_t cfgaddr; 5847c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 5857c478bd9Sstevel@tonic-gate 5867c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(handle); 5877c478bd9Sstevel@tonic-gate cfgaddr = hp->ah_addr + offset; 5887c478bd9Sstevel@tonic-gate ddi_put64(handle, (uint64_t *)cfgaddr, value); 5897c478bd9Sstevel@tonic-gate } 5907c478bd9Sstevel@tonic-gate 5917c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 5927c478bd9Sstevel@tonic-gate int 5937c478bd9Sstevel@tonic-gate pci_report_pmcap(dev_info_t *dip, int cap, void *arg) 5947c478bd9Sstevel@tonic-gate { 5957c478bd9Sstevel@tonic-gate return (DDI_SUCCESS); 5967c478bd9Sstevel@tonic-gate } 5977c478bd9Sstevel@tonic-gate 5987c478bd9Sstevel@tonic-gate /* 5997c478bd9Sstevel@tonic-gate * Note about saving and restoring config space. 6007c478bd9Sstevel@tonic-gate * PCI devices have only upto 256 bytes of config space while PCI Express 6017c478bd9Sstevel@tonic-gate * devices can have upto 4k config space. In case of PCI Express device, 6027c478bd9Sstevel@tonic-gate * we save all 4k config space and restore it even if it doesn't make use 6037c478bd9Sstevel@tonic-gate * of all 4k. But some devices don't respond to reads to non-existent 6047c478bd9Sstevel@tonic-gate * registers within the config space. To avoid any panics, we use ddi_peek 6057c478bd9Sstevel@tonic-gate * to do the reads. A bit mask is used to indicate which words of the 6067c478bd9Sstevel@tonic-gate * config space are accessible. While restoring the config space, only those 6077c478bd9Sstevel@tonic-gate * readable words are restored. We do all this in 32 bit size words. 6087c478bd9Sstevel@tonic-gate */ 6097c478bd9Sstevel@tonic-gate #define INDEX_SHIFT 3 6107c478bd9Sstevel@tonic-gate #define BITMASK 0x7 6117c478bd9Sstevel@tonic-gate 6127c478bd9Sstevel@tonic-gate static uint32_t pci_save_caps(ddi_acc_handle_t confhdl, uint32_t *regbuf, 6137c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t *ncapsp); 6147c478bd9Sstevel@tonic-gate static void pci_restore_caps(ddi_acc_handle_t confhdl, uint32_t *regbuf, 6157c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t elements); 6167c478bd9Sstevel@tonic-gate static uint32_t pci_generic_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 6177c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t nwords); 6187c478bd9Sstevel@tonic-gate static uint32_t pci_msi_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 6197c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t notused); 6207c478bd9Sstevel@tonic-gate static uint32_t pci_pcix_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 6217c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t notused); 6227c478bd9Sstevel@tonic-gate static uint32_t pci_pcie_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 6237c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t notused); 6247c478bd9Sstevel@tonic-gate static void pci_fill_buf(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 6257c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t nwords); 6267c478bd9Sstevel@tonic-gate static uint32_t cap_walk_and_save(ddi_acc_handle_t confhdl, uint32_t *regbuf, 6277c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t *ncapsp, int xspace); 6287c478bd9Sstevel@tonic-gate static void pci_pmcap_check(ddi_acc_handle_t confhdl, uint32_t *regbuf, 6297c478bd9Sstevel@tonic-gate uint16_t pmcap_offset); 6307c478bd9Sstevel@tonic-gate 6317c478bd9Sstevel@tonic-gate /* 6327c478bd9Sstevel@tonic-gate * Table below specifies the number of registers to be saved for each PCI 6337c478bd9Sstevel@tonic-gate * capability. pci_generic_save saves the number of words specified in the 6347c478bd9Sstevel@tonic-gate * table. Any special considerations will be taken care by the capability 6357c478bd9Sstevel@tonic-gate * specific save function e.g. use pci_msi_save to save registers associated 6367c478bd9Sstevel@tonic-gate * with MSI capability. PCI_UNKNOWN_SIZE indicates that number of registers 6377c478bd9Sstevel@tonic-gate * to be saved is variable and will be determined by the specific save function. 6387c478bd9Sstevel@tonic-gate * Currently we save/restore all the registers associated with the capability 6397c478bd9Sstevel@tonic-gate * including read only registers. Regsiters are saved and restored in 32 bit 6407c478bd9Sstevel@tonic-gate * size words. 6417c478bd9Sstevel@tonic-gate */ 6427c478bd9Sstevel@tonic-gate static pci_cap_entry_t pci_cap_table[] = { 6437c478bd9Sstevel@tonic-gate {PCI_CAP_ID_PM, PCI_PMCAP_NDWORDS, pci_generic_save}, 6447c478bd9Sstevel@tonic-gate {PCI_CAP_ID_AGP, PCI_AGP_NDWORDS, pci_generic_save}, 6457c478bd9Sstevel@tonic-gate {PCI_CAP_ID_SLOT_ID, PCI_SLOTID_NDWORDS, pci_generic_save}, 6467c478bd9Sstevel@tonic-gate {PCI_CAP_ID_MSI_X, PCI_MSIX_NDWORDS, pci_generic_save}, 6477c478bd9Sstevel@tonic-gate {PCI_CAP_ID_MSI, PCI_CAP_SZUNKNOWN, pci_msi_save}, 6487c478bd9Sstevel@tonic-gate {PCI_CAP_ID_PCIX, PCI_CAP_SZUNKNOWN, pci_pcix_save}, 6497c478bd9Sstevel@tonic-gate {PCI_CAP_ID_PCI_E, PCI_CAP_SZUNKNOWN, pci_pcie_save}, 6507c478bd9Sstevel@tonic-gate /* 6517c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_cPCI_CRC, 0, NULL}, 6527c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_VPD, 0, NULL}, 6537c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_cPCI_HS, 0, NULL}, 6547c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_PCI_HOTPLUG, 0, NULL}, 6557c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_AGP_8X, 0, NULL}, 6567c478bd9Sstevel@tonic-gate * {PCI_CAP_ID_SECURE_DEV, 0, NULL}, 6577c478bd9Sstevel@tonic-gate */ 6587c478bd9Sstevel@tonic-gate {PCI_CAP_NEXT_PTR_NULL, 0, NULL} 6597c478bd9Sstevel@tonic-gate }; 6607c478bd9Sstevel@tonic-gate 6617c478bd9Sstevel@tonic-gate /* 6627c478bd9Sstevel@tonic-gate * Save the configuration registers for cdip as a property 6637c478bd9Sstevel@tonic-gate * so that it persists after detach/uninitchild. 6647c478bd9Sstevel@tonic-gate */ 6657c478bd9Sstevel@tonic-gate int 6667c478bd9Sstevel@tonic-gate pci_save_config_regs(dev_info_t *dip) 6677c478bd9Sstevel@tonic-gate { 6687c478bd9Sstevel@tonic-gate ddi_acc_handle_t confhdl; 6697c478bd9Sstevel@tonic-gate pci_config_header_state_t *chsp; 6707c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *pci_cap_descp; 6717c478bd9Sstevel@tonic-gate int ret; 6727c478bd9Sstevel@tonic-gate uint32_t i, ncaps, nwords; 6737c478bd9Sstevel@tonic-gate uint32_t *regbuf, *p; 6747c478bd9Sstevel@tonic-gate uint8_t *maskbuf; 6757c478bd9Sstevel@tonic-gate size_t maskbufsz, regbufsz, capbufsz; 6767c478bd9Sstevel@tonic-gate ddi_acc_hdl_t *hp; 6777c478bd9Sstevel@tonic-gate off_t offset = 0; 6787c478bd9Sstevel@tonic-gate uint8_t cap_ptr, cap_id; 6797c478bd9Sstevel@tonic-gate int pcie = 0; 6807c478bd9Sstevel@tonic-gate 6817c478bd9Sstevel@tonic-gate if (pci_config_setup(dip, &confhdl) != DDI_SUCCESS) { 6827c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't get config handle", 6837c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip)); 6847c478bd9Sstevel@tonic-gate 6857c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 6867c478bd9Sstevel@tonic-gate } 6877c478bd9Sstevel@tonic-gate /* 6887c478bd9Sstevel@tonic-gate * Determine if it is a pci express device. If it is, save entire 6897c478bd9Sstevel@tonic-gate * 4k config space treating it as a array of 32 bit integers. 6907c478bd9Sstevel@tonic-gate * If it is not, do it in a usual PCI way. 6917c478bd9Sstevel@tonic-gate */ 6927c478bd9Sstevel@tonic-gate cap_ptr = pci_config_get8(confhdl, PCI_BCNF_CAP_PTR); 6937c478bd9Sstevel@tonic-gate /* 6947c478bd9Sstevel@tonic-gate * Walk the capabilities searching for pci express capability 6957c478bd9Sstevel@tonic-gate */ 6967c478bd9Sstevel@tonic-gate while (cap_ptr != PCI_CAP_NEXT_PTR_NULL) { 6977c478bd9Sstevel@tonic-gate cap_id = pci_config_get8(confhdl, 6987c478bd9Sstevel@tonic-gate cap_ptr + PCI_CAP_ID); 6997c478bd9Sstevel@tonic-gate if (cap_id == PCI_CAP_ID_PCI_E) { 7007c478bd9Sstevel@tonic-gate pcie = 1; 7017c478bd9Sstevel@tonic-gate break; 7027c478bd9Sstevel@tonic-gate } 7037c478bd9Sstevel@tonic-gate cap_ptr = pci_config_get8(confhdl, 7047c478bd9Sstevel@tonic-gate cap_ptr + PCI_CAP_NEXT_PTR); 7057c478bd9Sstevel@tonic-gate } 7067c478bd9Sstevel@tonic-gate 7077c478bd9Sstevel@tonic-gate if (pcie) { 7087c478bd9Sstevel@tonic-gate /* PCI express device. Can have data in all 4k space */ 7097c478bd9Sstevel@tonic-gate regbuf = (uint32_t *)kmem_zalloc((size_t)PCIE_CONF_HDR_SIZE, 7107c478bd9Sstevel@tonic-gate KM_SLEEP); 7117c478bd9Sstevel@tonic-gate p = regbuf; 7127c478bd9Sstevel@tonic-gate /* 7137c478bd9Sstevel@tonic-gate * Allocate space for mask. 7147c478bd9Sstevel@tonic-gate * mask size is 128 bytes (4096 / 4 / 8 ) 7157c478bd9Sstevel@tonic-gate */ 7167c478bd9Sstevel@tonic-gate maskbufsz = (size_t)((PCIE_CONF_HDR_SIZE/ sizeof (uint32_t)) >> 7177c478bd9Sstevel@tonic-gate INDEX_SHIFT); 7187c478bd9Sstevel@tonic-gate maskbuf = (uint8_t *)kmem_zalloc(maskbufsz, KM_SLEEP); 7197c478bd9Sstevel@tonic-gate hp = impl_acc_hdl_get(confhdl); 7207c478bd9Sstevel@tonic-gate for (i = 0; i < (PCIE_CONF_HDR_SIZE / sizeof (uint32_t)); i++) { 7217c478bd9Sstevel@tonic-gate if (ddi_peek32(dip, (int32_t *)(hp->ah_addr + offset), 7227c478bd9Sstevel@tonic-gate (int32_t *)p) == DDI_SUCCESS) { 7237c478bd9Sstevel@tonic-gate /* it is readable register. set the bit */ 7247c478bd9Sstevel@tonic-gate maskbuf[i >> INDEX_SHIFT] |= 7257c478bd9Sstevel@tonic-gate (uint8_t)(1 << (i & BITMASK)); 7267c478bd9Sstevel@tonic-gate } 7277c478bd9Sstevel@tonic-gate p++; 7287c478bd9Sstevel@tonic-gate offset += sizeof (uint32_t); 7297c478bd9Sstevel@tonic-gate } 7307c478bd9Sstevel@tonic-gate 7317c478bd9Sstevel@tonic-gate if ((ret = ndi_prop_update_byte_array(DDI_DEV_T_NONE, dip, 7327c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK, (uchar_t *)maskbuf, 7337c478bd9Sstevel@tonic-gate maskbufsz)) != DDI_PROP_SUCCESS) { 7347c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "couldn't create %s property while" 7357c478bd9Sstevel@tonic-gate "saving config space for %s@%d\n", 7367c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK, ddi_driver_name(dip), 7377c478bd9Sstevel@tonic-gate ddi_get_instance(dip)); 7387c478bd9Sstevel@tonic-gate } else if ((ret = ndi_prop_update_byte_array(DDI_DEV_T_NONE, 7397c478bd9Sstevel@tonic-gate dip, SAVED_CONFIG_REGS, (uchar_t *)regbuf, 7407c478bd9Sstevel@tonic-gate (size_t)PCIE_CONF_HDR_SIZE)) != DDI_PROP_SUCCESS) { 7417c478bd9Sstevel@tonic-gate (void) ddi_prop_remove(DDI_DEV_T_NONE, dip, 7427c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK); 7437c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't update prop %s", 7447c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip), 7457c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS); 7467c478bd9Sstevel@tonic-gate } 7477c478bd9Sstevel@tonic-gate 7487c478bd9Sstevel@tonic-gate kmem_free(maskbuf, (size_t)maskbufsz); 7497c478bd9Sstevel@tonic-gate kmem_free(regbuf, (size_t)PCIE_CONF_HDR_SIZE); 7507c478bd9Sstevel@tonic-gate } else { 7517c478bd9Sstevel@tonic-gate regbuf = (uint32_t *)kmem_zalloc((size_t)PCI_CONF_HDR_SIZE, 7527c478bd9Sstevel@tonic-gate KM_SLEEP); 7537c478bd9Sstevel@tonic-gate chsp = (pci_config_header_state_t *)regbuf; 7547c478bd9Sstevel@tonic-gate 7557c478bd9Sstevel@tonic-gate chsp->chs_command = pci_config_get16(confhdl, PCI_CONF_COMM); 7567c478bd9Sstevel@tonic-gate chsp->chs_header_type = pci_config_get8(confhdl, 7577c478bd9Sstevel@tonic-gate PCI_CONF_HEADER); 7587c478bd9Sstevel@tonic-gate if ((chsp->chs_header_type & PCI_HEADER_TYPE_M) == 7597c478bd9Sstevel@tonic-gate PCI_HEADER_ONE) 7607c478bd9Sstevel@tonic-gate chsp->chs_bridge_control = 7617c478bd9Sstevel@tonic-gate pci_config_get16(confhdl, PCI_BCNF_BCNTRL); 7627c478bd9Sstevel@tonic-gate chsp->chs_cache_line_size = pci_config_get8(confhdl, 7637c478bd9Sstevel@tonic-gate PCI_CONF_CACHE_LINESZ); 7647c478bd9Sstevel@tonic-gate chsp->chs_latency_timer = pci_config_get8(confhdl, 7657c478bd9Sstevel@tonic-gate PCI_CONF_LATENCY_TIMER); 7667c478bd9Sstevel@tonic-gate if ((chsp->chs_header_type & PCI_HEADER_TYPE_M) == 7677c478bd9Sstevel@tonic-gate PCI_HEADER_ONE) { 7687c478bd9Sstevel@tonic-gate chsp->chs_sec_latency_timer = 7697c478bd9Sstevel@tonic-gate pci_config_get8(confhdl, PCI_BCNF_LATENCY_TIMER); 7707c478bd9Sstevel@tonic-gate } 7717c478bd9Sstevel@tonic-gate 7727c478bd9Sstevel@tonic-gate chsp->chs_base0 = pci_config_get32(confhdl, PCI_CONF_BASE0); 7737c478bd9Sstevel@tonic-gate chsp->chs_base1 = pci_config_get32(confhdl, PCI_CONF_BASE1); 7747c478bd9Sstevel@tonic-gate chsp->chs_base2 = pci_config_get32(confhdl, PCI_CONF_BASE2); 7757c478bd9Sstevel@tonic-gate chsp->chs_base3 = pci_config_get32(confhdl, PCI_CONF_BASE3); 7767c478bd9Sstevel@tonic-gate chsp->chs_base4 = pci_config_get32(confhdl, PCI_CONF_BASE4); 7777c478bd9Sstevel@tonic-gate chsp->chs_base5 = pci_config_get32(confhdl, PCI_CONF_BASE5); 7787c478bd9Sstevel@tonic-gate 7797c478bd9Sstevel@tonic-gate /* 7807c478bd9Sstevel@tonic-gate * Allocate maximum space required for capability descriptions. 7817c478bd9Sstevel@tonic-gate * The maximum number of capabilties saved is the number of 7827c478bd9Sstevel@tonic-gate * capabilities listed in the pci_cap_table. 7837c478bd9Sstevel@tonic-gate */ 7847c478bd9Sstevel@tonic-gate ncaps = (sizeof (pci_cap_table) / sizeof (pci_cap_entry_t)); 7857c478bd9Sstevel@tonic-gate capbufsz = ncaps * sizeof (pci_cap_save_desc_t); 7867c478bd9Sstevel@tonic-gate pci_cap_descp = (pci_cap_save_desc_t *)kmem_zalloc( 7877c478bd9Sstevel@tonic-gate capbufsz, KM_SLEEP); 7887c478bd9Sstevel@tonic-gate p = (uint32_t *)((caddr_t)regbuf + 7897c478bd9Sstevel@tonic-gate sizeof (pci_config_header_state_t)); 7907c478bd9Sstevel@tonic-gate nwords = pci_save_caps(confhdl, p, pci_cap_descp, &ncaps); 7917c478bd9Sstevel@tonic-gate regbufsz = sizeof (pci_config_header_state_t) + 7927c478bd9Sstevel@tonic-gate nwords * sizeof (uint32_t); 7937c478bd9Sstevel@tonic-gate 7947c478bd9Sstevel@tonic-gate if ((ret = ndi_prop_update_byte_array(DDI_DEV_T_NONE, dip, 7957c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS, (uchar_t *)regbuf, regbufsz)) != 7967c478bd9Sstevel@tonic-gate DDI_PROP_SUCCESS) { 7977c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't update prop %s", 7987c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip), 7997c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS); 8007c478bd9Sstevel@tonic-gate } else if (ncaps) { 8017c478bd9Sstevel@tonic-gate ret = ndi_prop_update_byte_array(DDI_DEV_T_NONE, dip, 8027c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_CAPINFO, (uchar_t *)pci_cap_descp, 8037c478bd9Sstevel@tonic-gate ncaps * sizeof (pci_cap_save_desc_t)); 8047c478bd9Sstevel@tonic-gate if (ret != DDI_PROP_SUCCESS) 8057c478bd9Sstevel@tonic-gate (void) ddi_prop_remove(DDI_DEV_T_NONE, dip, 8067c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS); 8077c478bd9Sstevel@tonic-gate } 8087c478bd9Sstevel@tonic-gate kmem_free(regbuf, (size_t)PCI_CONF_HDR_SIZE); 8097c478bd9Sstevel@tonic-gate kmem_free(pci_cap_descp, capbufsz); 8107c478bd9Sstevel@tonic-gate } 8117c478bd9Sstevel@tonic-gate pci_config_teardown(&confhdl); 8127c478bd9Sstevel@tonic-gate 8137c478bd9Sstevel@tonic-gate if (ret != DDI_PROP_SUCCESS) 8147c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 8157c478bd9Sstevel@tonic-gate 8167c478bd9Sstevel@tonic-gate return (DDI_SUCCESS); 8177c478bd9Sstevel@tonic-gate } 8187c478bd9Sstevel@tonic-gate 8197c478bd9Sstevel@tonic-gate /* 8207c478bd9Sstevel@tonic-gate * Saves registers associated with PCI capabilities. 8217c478bd9Sstevel@tonic-gate * Returns number of 32 bit words saved. 8227c478bd9Sstevel@tonic-gate * Number of capabilities saved is returned in ncapsp. 8237c478bd9Sstevel@tonic-gate */ 8247c478bd9Sstevel@tonic-gate static uint32_t 8257c478bd9Sstevel@tonic-gate pci_save_caps(ddi_acc_handle_t confhdl, uint32_t *regbuf, 8267c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t *ncapsp) 8277c478bd9Sstevel@tonic-gate { 8287c478bd9Sstevel@tonic-gate return (cap_walk_and_save(confhdl, regbuf, cap_descp, ncapsp, 0)); 8297c478bd9Sstevel@tonic-gate } 8307c478bd9Sstevel@tonic-gate 8317c478bd9Sstevel@tonic-gate static uint32_t 8327c478bd9Sstevel@tonic-gate cap_walk_and_save(ddi_acc_handle_t confhdl, uint32_t *regbuf, 8337c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t *ncapsp, int xspace) 8347c478bd9Sstevel@tonic-gate { 8357c478bd9Sstevel@tonic-gate pci_cap_entry_t *pci_cap_entp; 8367c478bd9Sstevel@tonic-gate uint16_t cap_id, offset; 8377c478bd9Sstevel@tonic-gate uint32_t words_saved = 0, nwords = 0; 8387c478bd9Sstevel@tonic-gate uint16_t cap_ptr = PCI_CAP_NEXT_PTR_NULL; 8397c478bd9Sstevel@tonic-gate 8407c478bd9Sstevel@tonic-gate *ncapsp = 0; 8417c478bd9Sstevel@tonic-gate if (!xspace) 8427c478bd9Sstevel@tonic-gate cap_ptr = pci_config_get8(confhdl, PCI_BCNF_CAP_PTR); 8437c478bd9Sstevel@tonic-gate /* 8447c478bd9Sstevel@tonic-gate * Walk the capabilities 8457c478bd9Sstevel@tonic-gate */ 8467c478bd9Sstevel@tonic-gate while (cap_ptr != PCI_CAP_NEXT_PTR_NULL) { 8477c478bd9Sstevel@tonic-gate cap_id = CAP_ID(confhdl, cap_ptr, xspace); 8487c478bd9Sstevel@tonic-gate /* Search for this cap id in our table */ 8497c478bd9Sstevel@tonic-gate if (!xspace) 8507c478bd9Sstevel@tonic-gate pci_cap_entp = pci_cap_table; 8517c478bd9Sstevel@tonic-gate while (pci_cap_entp->cap_id != PCI_CAP_NEXT_PTR_NULL && 8527c478bd9Sstevel@tonic-gate pci_cap_entp->cap_id != cap_id) 8537c478bd9Sstevel@tonic-gate pci_cap_entp++; 8547c478bd9Sstevel@tonic-gate 8557c478bd9Sstevel@tonic-gate offset = cap_ptr; 8567c478bd9Sstevel@tonic-gate cap_ptr = NEXT_CAP(confhdl, cap_ptr, xspace); 8577c478bd9Sstevel@tonic-gate /* 8587c478bd9Sstevel@tonic-gate * If this cap id is not found in the table, there is nothing 8597c478bd9Sstevel@tonic-gate * to save. 8607c478bd9Sstevel@tonic-gate */ 8617c478bd9Sstevel@tonic-gate if (pci_cap_entp->cap_id == PCI_CAP_NEXT_PTR_NULL) 8627c478bd9Sstevel@tonic-gate continue; 8637c478bd9Sstevel@tonic-gate if (pci_cap_entp->cap_save_func) { 8647c478bd9Sstevel@tonic-gate if ((nwords = pci_cap_entp->cap_save_func(confhdl, 8657c478bd9Sstevel@tonic-gate offset, regbuf, pci_cap_entp->cap_ndwords))) { 8667c478bd9Sstevel@tonic-gate cap_descp->cap_nregs = nwords; 8677c478bd9Sstevel@tonic-gate cap_descp->cap_offset = offset; 8687c478bd9Sstevel@tonic-gate cap_descp->cap_id = cap_id; 8697c478bd9Sstevel@tonic-gate regbuf += nwords; 8707c478bd9Sstevel@tonic-gate cap_descp++; 8717c478bd9Sstevel@tonic-gate words_saved += nwords; 8727c478bd9Sstevel@tonic-gate (*ncapsp)++; 8737c478bd9Sstevel@tonic-gate } 8747c478bd9Sstevel@tonic-gate } 8757c478bd9Sstevel@tonic-gate 8767c478bd9Sstevel@tonic-gate } 8777c478bd9Sstevel@tonic-gate return (words_saved); 8787c478bd9Sstevel@tonic-gate } 8797c478bd9Sstevel@tonic-gate 8807c478bd9Sstevel@tonic-gate static void 8817c478bd9Sstevel@tonic-gate pci_fill_buf(ddi_acc_handle_t confhdl, uint16_t cap_ptr, 8827c478bd9Sstevel@tonic-gate uint32_t *regbuf, uint32_t nwords) 8837c478bd9Sstevel@tonic-gate { 8847c478bd9Sstevel@tonic-gate int i; 8857c478bd9Sstevel@tonic-gate 8867c478bd9Sstevel@tonic-gate for (i = 0; i < nwords; i++) { 8877c478bd9Sstevel@tonic-gate *regbuf = pci_config_get32(confhdl, cap_ptr); 8887c478bd9Sstevel@tonic-gate regbuf++; 8897c478bd9Sstevel@tonic-gate cap_ptr += 4; 8907c478bd9Sstevel@tonic-gate } 8917c478bd9Sstevel@tonic-gate } 8927c478bd9Sstevel@tonic-gate 8937c478bd9Sstevel@tonic-gate static uint32_t 8947c478bd9Sstevel@tonic-gate pci_generic_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, uint32_t *regbuf, 8957c478bd9Sstevel@tonic-gate uint32_t nwords) 8967c478bd9Sstevel@tonic-gate { 8977c478bd9Sstevel@tonic-gate pci_fill_buf(confhdl, cap_ptr, regbuf, nwords); 8987c478bd9Sstevel@tonic-gate return (nwords); 8997c478bd9Sstevel@tonic-gate } 9007c478bd9Sstevel@tonic-gate 9017c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 9027c478bd9Sstevel@tonic-gate static uint32_t 9037c478bd9Sstevel@tonic-gate pci_msi_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, uint32_t *regbuf, 9047c478bd9Sstevel@tonic-gate uint32_t notused) 9057c478bd9Sstevel@tonic-gate { 9067c478bd9Sstevel@tonic-gate uint32_t nwords = PCI_MSI_MIN_WORDS; 9077c478bd9Sstevel@tonic-gate uint16_t msi_ctrl; 9087c478bd9Sstevel@tonic-gate 9097c478bd9Sstevel@tonic-gate /* Figure out how many registers to be saved */ 9107c478bd9Sstevel@tonic-gate msi_ctrl = pci_config_get16(confhdl, cap_ptr + PCI_MSI_CTRL); 9117c478bd9Sstevel@tonic-gate /* If 64 bit address capable add one word */ 9127c478bd9Sstevel@tonic-gate if (msi_ctrl & PCI_MSI_64BIT_MASK) 9137c478bd9Sstevel@tonic-gate nwords++; 9147c478bd9Sstevel@tonic-gate /* If per vector masking capable, add two more words */ 9157c478bd9Sstevel@tonic-gate if (msi_ctrl & PCI_MSI_PVM_MASK) 9167c478bd9Sstevel@tonic-gate nwords += 2; 9177c478bd9Sstevel@tonic-gate pci_fill_buf(confhdl, cap_ptr, regbuf, nwords); 9187c478bd9Sstevel@tonic-gate 9197c478bd9Sstevel@tonic-gate return (nwords); 9207c478bd9Sstevel@tonic-gate } 9217c478bd9Sstevel@tonic-gate 9227c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 9237c478bd9Sstevel@tonic-gate static uint32_t 9247c478bd9Sstevel@tonic-gate pci_pcix_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, uint32_t *regbuf, 9257c478bd9Sstevel@tonic-gate uint32_t notused) 9267c478bd9Sstevel@tonic-gate { 9277c478bd9Sstevel@tonic-gate uint32_t nwords = PCI_PCIX_MIN_WORDS; 9287c478bd9Sstevel@tonic-gate uint16_t pcix_command; 9297c478bd9Sstevel@tonic-gate 9307c478bd9Sstevel@tonic-gate /* Figure out how many registers to be saved */ 9317c478bd9Sstevel@tonic-gate pcix_command = pci_config_get16(confhdl, cap_ptr + PCI_PCIX_COMMAND); 9327c478bd9Sstevel@tonic-gate /* If it is version 1 or version 2, add 4 words */ 9337c478bd9Sstevel@tonic-gate if (((pcix_command & PCI_PCIX_VER_MASK) == PCI_PCIX_VER_1) || 9347c478bd9Sstevel@tonic-gate ((pcix_command & PCI_PCIX_VER_MASK) == PCI_PCIX_VER_2)) 9357c478bd9Sstevel@tonic-gate nwords += 4; 9367c478bd9Sstevel@tonic-gate pci_fill_buf(confhdl, cap_ptr, regbuf, nwords); 9377c478bd9Sstevel@tonic-gate 9387c478bd9Sstevel@tonic-gate return (nwords); 9397c478bd9Sstevel@tonic-gate } 9407c478bd9Sstevel@tonic-gate 9417c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 9427c478bd9Sstevel@tonic-gate static uint32_t 9437c478bd9Sstevel@tonic-gate pci_pcie_save(ddi_acc_handle_t confhdl, uint16_t cap_ptr, uint32_t *regbuf, 9447c478bd9Sstevel@tonic-gate uint32_t notused) 9457c478bd9Sstevel@tonic-gate { 9467c478bd9Sstevel@tonic-gate return (0); 9477c478bd9Sstevel@tonic-gate } 9487c478bd9Sstevel@tonic-gate 9497c478bd9Sstevel@tonic-gate static void 9507c478bd9Sstevel@tonic-gate pci_pmcap_check(ddi_acc_handle_t confhdl, uint32_t *regbuf, 9517c478bd9Sstevel@tonic-gate uint16_t pmcap_offset) 9527c478bd9Sstevel@tonic-gate { 9537c478bd9Sstevel@tonic-gate uint16_t pmcsr; 9547c478bd9Sstevel@tonic-gate uint16_t pmcsr_offset = pmcap_offset + PCI_PMCSR; 9557c478bd9Sstevel@tonic-gate uint32_t *saved_pmcsrp = (uint32_t *)((caddr_t)regbuf + PCI_PMCSR); 9567c478bd9Sstevel@tonic-gate 9577c478bd9Sstevel@tonic-gate /* 9587c478bd9Sstevel@tonic-gate * Copy the power state bits from the PMCSR to our saved copy. 9597c478bd9Sstevel@tonic-gate * This is to make sure that we don't change the D state when 9607c478bd9Sstevel@tonic-gate * we restore config space of the device. 9617c478bd9Sstevel@tonic-gate */ 9627c478bd9Sstevel@tonic-gate pmcsr = pci_config_get16(confhdl, pmcsr_offset); 9637c478bd9Sstevel@tonic-gate (*saved_pmcsrp) &= ~PCI_PMCSR_STATE_MASK; 9647c478bd9Sstevel@tonic-gate (*saved_pmcsrp) |= (pmcsr & PCI_PMCSR_STATE_MASK); 9657c478bd9Sstevel@tonic-gate } 9667c478bd9Sstevel@tonic-gate 9677c478bd9Sstevel@tonic-gate static void 9687c478bd9Sstevel@tonic-gate pci_restore_caps(ddi_acc_handle_t confhdl, uint32_t *regbuf, 9697c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp, uint32_t elements) 9707c478bd9Sstevel@tonic-gate { 9717c478bd9Sstevel@tonic-gate int i, j; 9727c478bd9Sstevel@tonic-gate uint16_t offset; 9737c478bd9Sstevel@tonic-gate 9747c478bd9Sstevel@tonic-gate for (i = 0; i < (elements / sizeof (pci_cap_save_desc_t)); i++) { 9757c478bd9Sstevel@tonic-gate offset = cap_descp->cap_offset; 9767c478bd9Sstevel@tonic-gate if (cap_descp->cap_id == PCI_CAP_ID_PM) 9777c478bd9Sstevel@tonic-gate pci_pmcap_check(confhdl, regbuf, offset); 9787c478bd9Sstevel@tonic-gate for (j = 0; j < cap_descp->cap_nregs; j++) { 9797c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, offset, *regbuf); 9807c478bd9Sstevel@tonic-gate regbuf++; 9817c478bd9Sstevel@tonic-gate offset += 4; 9827c478bd9Sstevel@tonic-gate } 9837c478bd9Sstevel@tonic-gate cap_descp++; 9847c478bd9Sstevel@tonic-gate } 9857c478bd9Sstevel@tonic-gate } 9867c478bd9Sstevel@tonic-gate 9877c478bd9Sstevel@tonic-gate /* 9887c478bd9Sstevel@tonic-gate * Restore config_regs from a single devinfo node. 9897c478bd9Sstevel@tonic-gate */ 9907c478bd9Sstevel@tonic-gate int 9917c478bd9Sstevel@tonic-gate pci_restore_config_regs(dev_info_t *dip) 9927c478bd9Sstevel@tonic-gate { 9937c478bd9Sstevel@tonic-gate ddi_acc_handle_t confhdl; 9947c478bd9Sstevel@tonic-gate pci_config_header_state_t *chs_p; 9957c478bd9Sstevel@tonic-gate pci_cap_save_desc_t *cap_descp; 9967c478bd9Sstevel@tonic-gate uint32_t elements, i; 9977c478bd9Sstevel@tonic-gate uint8_t *maskbuf; 9987c478bd9Sstevel@tonic-gate uint32_t *regbuf, *p; 9997c478bd9Sstevel@tonic-gate off_t offset = 0; 10007c478bd9Sstevel@tonic-gate 10017c478bd9Sstevel@tonic-gate if (pci_config_setup(dip, &confhdl) != DDI_SUCCESS) { 10027c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't get config handle", 10037c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip)); 10047c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 10057c478bd9Sstevel@tonic-gate } 10067c478bd9Sstevel@tonic-gate 10077c478bd9Sstevel@tonic-gate if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, dip, 10087c478bd9Sstevel@tonic-gate DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, SAVED_CONFIG_REGS_MASK, 10097c478bd9Sstevel@tonic-gate (uchar_t **)&maskbuf, &elements) == DDI_PROP_SUCCESS) { 10107c478bd9Sstevel@tonic-gate 10117c478bd9Sstevel@tonic-gate if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, dip, 10127c478bd9Sstevel@tonic-gate DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, SAVED_CONFIG_REGS, 10137c478bd9Sstevel@tonic-gate (uchar_t **)®buf, &elements) != DDI_PROP_SUCCESS) { 10147c478bd9Sstevel@tonic-gate goto restoreconfig_err; 10157c478bd9Sstevel@tonic-gate } 10167c478bd9Sstevel@tonic-gate ASSERT(elements == PCIE_CONF_HDR_SIZE); 10177c478bd9Sstevel@tonic-gate /* pcie device and has 4k config space saved */ 10187c478bd9Sstevel@tonic-gate p = regbuf; 10197c478bd9Sstevel@tonic-gate for (i = 0; i < PCIE_CONF_HDR_SIZE / sizeof (uint32_t); i++) { 10207c478bd9Sstevel@tonic-gate /* If the word is readable then restore it */ 10217c478bd9Sstevel@tonic-gate if (maskbuf[i >> INDEX_SHIFT] & 10227c478bd9Sstevel@tonic-gate (uint8_t)(1 << (i & BITMASK))) 10237c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, offset, *p); 10247c478bd9Sstevel@tonic-gate p++; 10257c478bd9Sstevel@tonic-gate offset += sizeof (uint32_t); 10267c478bd9Sstevel@tonic-gate } 10277c478bd9Sstevel@tonic-gate ddi_prop_free(regbuf); 10287c478bd9Sstevel@tonic-gate ddi_prop_free(maskbuf); 10297c478bd9Sstevel@tonic-gate if (ndi_prop_remove(DDI_DEV_T_NONE, dip, 10307c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK) != DDI_PROP_SUCCESS) { 10317c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't remove prop %s", 10327c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip), 10337c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK); 10347c478bd9Sstevel@tonic-gate } 10357c478bd9Sstevel@tonic-gate } else { 10367c478bd9Sstevel@tonic-gate if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, dip, 10377c478bd9Sstevel@tonic-gate DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, SAVED_CONFIG_REGS, 10387c478bd9Sstevel@tonic-gate (uchar_t **)®buf, &elements) != DDI_PROP_SUCCESS) { 10397c478bd9Sstevel@tonic-gate 10407c478bd9Sstevel@tonic-gate pci_config_teardown(&confhdl); 10417c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 10427c478bd9Sstevel@tonic-gate } 10437c478bd9Sstevel@tonic-gate 10447c478bd9Sstevel@tonic-gate chs_p = (pci_config_header_state_t *)regbuf; 10457c478bd9Sstevel@tonic-gate pci_config_put16(confhdl, PCI_CONF_COMM, 10467c478bd9Sstevel@tonic-gate chs_p->chs_command); 10477c478bd9Sstevel@tonic-gate if ((chs_p->chs_header_type & PCI_HEADER_TYPE_M) == 10487c478bd9Sstevel@tonic-gate PCI_HEADER_ONE) { 10497c478bd9Sstevel@tonic-gate pci_config_put16(confhdl, PCI_BCNF_BCNTRL, 10507c478bd9Sstevel@tonic-gate chs_p->chs_bridge_control); 10517c478bd9Sstevel@tonic-gate } 10527c478bd9Sstevel@tonic-gate pci_config_put8(confhdl, PCI_CONF_CACHE_LINESZ, 10537c478bd9Sstevel@tonic-gate chs_p->chs_cache_line_size); 10547c478bd9Sstevel@tonic-gate pci_config_put8(confhdl, PCI_CONF_LATENCY_TIMER, 10557c478bd9Sstevel@tonic-gate chs_p->chs_latency_timer); 10567c478bd9Sstevel@tonic-gate if ((chs_p->chs_header_type & PCI_HEADER_TYPE_M) == 10577c478bd9Sstevel@tonic-gate PCI_HEADER_ONE) 10587c478bd9Sstevel@tonic-gate pci_config_put8(confhdl, PCI_BCNF_LATENCY_TIMER, 10597c478bd9Sstevel@tonic-gate chs_p->chs_sec_latency_timer); 10607c478bd9Sstevel@tonic-gate 10617c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE0, chs_p->chs_base0); 10627c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE1, chs_p->chs_base1); 10637c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE2, chs_p->chs_base2); 10647c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE3, chs_p->chs_base3); 10657c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE4, chs_p->chs_base4); 10667c478bd9Sstevel@tonic-gate pci_config_put32(confhdl, PCI_CONF_BASE5, chs_p->chs_base5); 10677c478bd9Sstevel@tonic-gate 10687c478bd9Sstevel@tonic-gate if (ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, dip, 10697c478bd9Sstevel@tonic-gate DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 10707c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_CAPINFO, 10717c478bd9Sstevel@tonic-gate (uchar_t **)&cap_descp, &elements) == DDI_PROP_SUCCESS) { 10727c478bd9Sstevel@tonic-gate /* 10737c478bd9Sstevel@tonic-gate * PCI capability related regsiters are saved. 10747c478bd9Sstevel@tonic-gate * Restore them based on the description. 10757c478bd9Sstevel@tonic-gate */ 10767c478bd9Sstevel@tonic-gate p = (uint32_t *)((caddr_t)regbuf + 10777c478bd9Sstevel@tonic-gate sizeof (pci_config_header_state_t)); 10787c478bd9Sstevel@tonic-gate pci_restore_caps(confhdl, p, cap_descp, elements); 10797c478bd9Sstevel@tonic-gate ddi_prop_free(cap_descp); 10807c478bd9Sstevel@tonic-gate } 10817c478bd9Sstevel@tonic-gate 10827c478bd9Sstevel@tonic-gate ddi_prop_free(regbuf); 10837c478bd9Sstevel@tonic-gate } 10847c478bd9Sstevel@tonic-gate 10857c478bd9Sstevel@tonic-gate /* 10867c478bd9Sstevel@tonic-gate * Make sure registers are flushed 10877c478bd9Sstevel@tonic-gate */ 10887c478bd9Sstevel@tonic-gate (void) pci_config_get32(confhdl, PCI_CONF_BASE5); 10897c478bd9Sstevel@tonic-gate 10907c478bd9Sstevel@tonic-gate 10917c478bd9Sstevel@tonic-gate if (ndi_prop_remove(DDI_DEV_T_NONE, dip, SAVED_CONFIG_REGS) != 10927c478bd9Sstevel@tonic-gate DDI_PROP_SUCCESS) { 10937c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't remove prop %s", 10947c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip), 10957c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS); 10967c478bd9Sstevel@tonic-gate } 10977c478bd9Sstevel@tonic-gate 10987c478bd9Sstevel@tonic-gate pci_config_teardown(&confhdl); 10997c478bd9Sstevel@tonic-gate 11007c478bd9Sstevel@tonic-gate return (DDI_SUCCESS); 11017c478bd9Sstevel@tonic-gate 11027c478bd9Sstevel@tonic-gate restoreconfig_err: 11037c478bd9Sstevel@tonic-gate ddi_prop_free(maskbuf); 11047c478bd9Sstevel@tonic-gate if (ndi_prop_remove(DDI_DEV_T_NONE, dip, SAVED_CONFIG_REGS_MASK) != 11057c478bd9Sstevel@tonic-gate DDI_PROP_SUCCESS) { 11067c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d can't remove prop %s", 11077c478bd9Sstevel@tonic-gate ddi_driver_name(dip), ddi_get_instance(dip), 11087c478bd9Sstevel@tonic-gate SAVED_CONFIG_REGS_MASK); 11097c478bd9Sstevel@tonic-gate } 11107c478bd9Sstevel@tonic-gate pci_config_teardown(&confhdl); 11117c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 11127c478bd9Sstevel@tonic-gate } 1113