/* $NetBSD: pci_subr.c,v 1.71 2006/11/16 01:33:09 christos Exp $ */ /* * Copyright (c) 1997 Zubin D. Dittia. All rights reserved. * Copyright (c) 1995, 1996, 1998, 2000 * Christopher G. Demetriou. All rights reserved. * Copyright (c) 1994 Charles M. Hannum. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles M. Hannum. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * PCI autoconfiguration support functions. * * Note: This file is also built into a userland library (libpci). * Pay attention to this when you make modifications. */ #include __KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.71 2006/11/16 01:33:09 christos Exp $"); #ifdef _KERNEL_OPT #include "opt_pci.h" #endif #include #ifdef _KERNEL #include #include #else #include #include #endif #include #ifdef _KERNEL #include #endif #ifdef PCIVERBOSE #include #endif /* * Descriptions of known PCI classes and subclasses. * * Subclasses are described in the same way as classes, but have a * NULL subclass pointer. */ struct pci_class { const char *name; int val; /* as wide as pci_{,sub}class_t */ const struct pci_class *subclasses; }; static const struct pci_class pci_subclass_prehistoric[] = { { "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC, NULL, }, { "VGA", PCI_SUBCLASS_PREHISTORIC_VGA, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_mass_storage[] = { { "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI, NULL, }, { "IDE", PCI_SUBCLASS_MASS_STORAGE_IDE, NULL, }, { "floppy", PCI_SUBCLASS_MASS_STORAGE_FLOPPY, NULL, }, { "IPI", PCI_SUBCLASS_MASS_STORAGE_IPI, NULL, }, { "RAID", PCI_SUBCLASS_MASS_STORAGE_RAID, NULL, }, { "ATA", PCI_SUBCLASS_MASS_STORAGE_ATA, NULL, }, { "SATA", PCI_SUBCLASS_MASS_STORAGE_SATA, NULL, }, { "SAS", PCI_SUBCLASS_MASS_STORAGE_SAS, NULL, }, { "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_network[] = { { "ethernet", PCI_SUBCLASS_NETWORK_ETHERNET, NULL, }, { "token ring", PCI_SUBCLASS_NETWORK_TOKENRING, NULL, }, { "FDDI", PCI_SUBCLASS_NETWORK_FDDI, NULL, }, { "ATM", PCI_SUBCLASS_NETWORK_ATM, NULL, }, { "ISDN", PCI_SUBCLASS_NETWORK_ISDN, NULL, }, { "WorldFip", PCI_SUBCLASS_NETWORK_WORLDFIP, NULL, }, { "PCMIG Multi Computing", PCI_SUBCLASS_NETWORK_PCIMGMULTICOMP, NULL, }, { "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_display[] = { { "VGA", PCI_SUBCLASS_DISPLAY_VGA, NULL, }, { "XGA", PCI_SUBCLASS_DISPLAY_XGA, NULL, }, { "3D", PCI_SUBCLASS_DISPLAY_3D, NULL, }, { "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_multimedia[] = { { "video", PCI_SUBCLASS_MULTIMEDIA_VIDEO, NULL, }, { "audio", PCI_SUBCLASS_MULTIMEDIA_AUDIO, NULL, }, { "telephony", PCI_SUBCLASS_MULTIMEDIA_TELEPHONY, NULL,}, { "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_memory[] = { { "RAM", PCI_SUBCLASS_MEMORY_RAM, NULL, }, { "flash", PCI_SUBCLASS_MEMORY_FLASH, NULL, }, { "miscellaneous", PCI_SUBCLASS_MEMORY_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_bridge[] = { { "host", PCI_SUBCLASS_BRIDGE_HOST, NULL, }, { "ISA", PCI_SUBCLASS_BRIDGE_ISA, NULL, }, { "EISA", PCI_SUBCLASS_BRIDGE_EISA, NULL, }, { "MicroChannel", PCI_SUBCLASS_BRIDGE_MC, NULL, }, { "PCI", PCI_SUBCLASS_BRIDGE_PCI, NULL, }, { "PCMCIA", PCI_SUBCLASS_BRIDGE_PCMCIA, NULL, }, { "NuBus", PCI_SUBCLASS_BRIDGE_NUBUS, NULL, }, { "CardBus", PCI_SUBCLASS_BRIDGE_CARDBUS, NULL, }, { "RACEway", PCI_SUBCLASS_BRIDGE_RACEWAY, NULL, }, { "Semi-transparent PCI", PCI_SUBCLASS_BRIDGE_STPCI, NULL, }, { "InfiniBand", PCI_SUBCLASS_BRIDGE_INFINIBAND, NULL, }, { "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_communications[] = { { "serial", PCI_SUBCLASS_COMMUNICATIONS_SERIAL, NULL, }, { "parallel", PCI_SUBCLASS_COMMUNICATIONS_PARALLEL, NULL, }, { "multi-port serial", PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL, NULL, }, { "modem", PCI_SUBCLASS_COMMUNICATIONS_MODEM, NULL, }, { "GPIB", PCI_SUBCLASS_COMMUNICATIONS_GPIB, NULL, }, { "smartcard", PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD, NULL, }, { "miscellaneous", PCI_SUBCLASS_COMMUNICATIONS_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_system[] = { { "interrupt", PCI_SUBCLASS_SYSTEM_PIC, NULL, }, { "8237 DMA", PCI_SUBCLASS_SYSTEM_DMA, NULL, }, { "8254 timer", PCI_SUBCLASS_SYSTEM_TIMER, NULL, }, { "RTC", PCI_SUBCLASS_SYSTEM_RTC, NULL, }, { "PCI Hot-Plug", PCI_SUBCLASS_SYSTEM_PCIHOTPLUG, NULL, }, { "SD Host Controller", PCI_SUBCLASS_SYSTEM_SDHC, NULL, }, { "miscellaneous", PCI_SUBCLASS_SYSTEM_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_input[] = { { "keyboard", PCI_SUBCLASS_INPUT_KEYBOARD, NULL, }, { "digitizer", PCI_SUBCLASS_INPUT_DIGITIZER, NULL, }, { "mouse", PCI_SUBCLASS_INPUT_MOUSE, NULL, }, { "scanner", PCI_SUBCLASS_INPUT_SCANNER, NULL, }, { "game port", PCI_SUBCLASS_INPUT_GAMEPORT, NULL, }, { "miscellaneous", PCI_SUBCLASS_INPUT_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_dock[] = { { "generic", PCI_SUBCLASS_DOCK_GENERIC, NULL, }, { "miscellaneous", PCI_SUBCLASS_DOCK_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_processor[] = { { "386", PCI_SUBCLASS_PROCESSOR_386, NULL, }, { "486", PCI_SUBCLASS_PROCESSOR_486, NULL, }, { "Pentium", PCI_SUBCLASS_PROCESSOR_PENTIUM, NULL, }, { "Alpha", PCI_SUBCLASS_PROCESSOR_ALPHA, NULL, }, { "PowerPC", PCI_SUBCLASS_PROCESSOR_POWERPC, NULL, }, { "MIPS", PCI_SUBCLASS_PROCESSOR_MIPS, NULL, }, { "Co-processor", PCI_SUBCLASS_PROCESSOR_COPROC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_serialbus[] = { { "Firewire", PCI_SUBCLASS_SERIALBUS_FIREWIRE, NULL, }, { "ACCESS.bus", PCI_SUBCLASS_SERIALBUS_ACCESS, NULL, }, { "SSA", PCI_SUBCLASS_SERIALBUS_SSA, NULL, }, { "USB", PCI_SUBCLASS_SERIALBUS_USB, NULL, }, /* XXX Fiber Channel/_FIBRECHANNEL */ { "Fiber Channel", PCI_SUBCLASS_SERIALBUS_FIBER, NULL, }, { "SMBus", PCI_SUBCLASS_SERIALBUS_SMBUS, NULL, }, { "InfiniBand", PCI_SUBCLASS_SERIALBUS_INFINIBAND, NULL,}, { "IPMI", PCI_SUBCLASS_SERIALBUS_IPMI, NULL, }, { "SERCOS", PCI_SUBCLASS_SERIALBUS_SERCOS, NULL, }, { "CANbus", PCI_SUBCLASS_SERIALBUS_CANBUS, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_wireless[] = { { "IrDA", PCI_SUBCLASS_WIRELESS_IRDA, NULL, }, { "Consumer IR", PCI_SUBCLASS_WIRELESS_CONSUMERIR, NULL, }, { "RF", PCI_SUBCLASS_WIRELESS_RF, NULL, }, { "bluetooth", PCI_SUBCLASS_WIRELESS_BLUETOOTH, NULL, }, { "broadband", PCI_SUBCLASS_WIRELESS_BROADBAND, NULL, }, { "802.11a (5 GHz)", PCI_SUBCLASS_WIRELESS_802_11A, NULL, }, { "802.11b (2.4 GHz)", PCI_SUBCLASS_WIRELESS_802_11B, NULL, }, { "miscellaneous", PCI_SUBCLASS_WIRELESS_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_i2o[] = { { "standard", PCI_SUBCLASS_I2O_STANDARD, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_satcom[] = { { "TV", PCI_SUBCLASS_SATCOM_TV, NULL, }, { "audio", PCI_SUBCLASS_SATCOM_AUDIO, NULL, }, { "voice", PCI_SUBCLASS_SATCOM_VOICE, NULL, }, { "data", PCI_SUBCLASS_SATCOM_DATA, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_crypto[] = { { "network/computing", PCI_SUBCLASS_CRYPTO_NETCOMP, NULL, }, { "entertainment", PCI_SUBCLASS_CRYPTO_ENTERTAINMENT, NULL,}, { "miscellaneous", PCI_SUBCLASS_CRYPTO_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_subclass_dasp[] = { { "DPIO", PCI_SUBCLASS_DASP_DPIO, NULL, }, { "Time and Frequency", PCI_SUBCLASS_DASP_TIMEFREQ, NULL, }, { "synchronization", PCI_SUBCLASS_DASP_SYNC, NULL, }, { "management", PCI_SUBCLASS_DASP_MGMT, NULL, }, { "miscellaneous", PCI_SUBCLASS_DASP_MISC, NULL, }, { NULL, 0, NULL, }, }; static const struct pci_class pci_class[] = { { "prehistoric", PCI_CLASS_PREHISTORIC, pci_subclass_prehistoric, }, { "mass storage", PCI_CLASS_MASS_STORAGE, pci_subclass_mass_storage, }, { "network", PCI_CLASS_NETWORK, pci_subclass_network, }, { "display", PCI_CLASS_DISPLAY, pci_subclass_display, }, { "multimedia", PCI_CLASS_MULTIMEDIA, pci_subclass_multimedia, }, { "memory", PCI_CLASS_MEMORY, pci_subclass_memory, }, { "bridge", PCI_CLASS_BRIDGE, pci_subclass_bridge, }, { "communications", PCI_CLASS_COMMUNICATIONS, pci_subclass_communications, }, { "system", PCI_CLASS_SYSTEM, pci_subclass_system, }, { "input", PCI_CLASS_INPUT, pci_subclass_input, }, { "dock", PCI_CLASS_DOCK, pci_subclass_dock, }, { "processor", PCI_CLASS_PROCESSOR, pci_subclass_processor, }, { "serial bus", PCI_CLASS_SERIALBUS, pci_subclass_serialbus, }, { "wireless", PCI_CLASS_WIRELESS, pci_subclass_wireless, }, { "I2O", PCI_CLASS_I2O, pci_subclass_i2o, }, { "satellite comm", PCI_CLASS_SATCOM, pci_subclass_satcom, }, { "crypto", PCI_CLASS_CRYPTO, pci_subclass_crypto, }, { "DASP", PCI_CLASS_DASP, pci_subclass_dasp, }, { "undefined", PCI_CLASS_UNDEFINED, NULL, }, { NULL, 0, NULL, }, }; #ifdef PCIVERBOSE /* * Descriptions of of known vendors and devices ("products"). */ struct pci_vendor { pci_vendor_id_t vendor; const char *vendorname; }; struct pci_product { pci_vendor_id_t vendor; pci_product_id_t product; const char *productname; }; #include #endif /* PCIVERBOSE */ const char * pci_findvendor(pcireg_t id_reg) { #ifdef PCIVERBOSE pci_vendor_id_t vendor = PCI_VENDOR(id_reg); int n; for (n = 0; n < pci_nvendors; n++) if (pci_vendors[n].vendor == vendor) return (pci_vendors[n].vendorname); #endif return (NULL); } const char * pci_findproduct(pcireg_t id_reg) { #ifdef PCIVERBOSE pci_vendor_id_t vendor = PCI_VENDOR(id_reg); pci_product_id_t product = PCI_PRODUCT(id_reg); int n; for (n = 0; n < pci_nproducts; n++) if (pci_products[n].vendor == vendor && pci_products[n].product == product) return (pci_products[n].productname); #endif return (NULL); } void pci_devinfo(pcireg_t id_reg, pcireg_t class_reg, int showclass, char *cp, size_t l) { pci_vendor_id_t vendor; pci_product_id_t product; pci_class_t class; pci_subclass_t subclass; pci_interface_t interface; pci_revision_t revision; const char *vendor_namep, *product_namep; const struct pci_class *classp, *subclassp; #ifdef PCIVERBOSE const char *unmatched = "unknown "; #else const char *unmatched = ""; #endif char *ep; ep = cp + l; vendor = PCI_VENDOR(id_reg); product = PCI_PRODUCT(id_reg); class = PCI_CLASS(class_reg); subclass = PCI_SUBCLASS(class_reg); interface = PCI_INTERFACE(class_reg); revision = PCI_REVISION(class_reg); vendor_namep = pci_findvendor(id_reg); product_namep = pci_findproduct(id_reg); classp = pci_class; while (classp->name != NULL) { if (class == classp->val) break; classp++; } subclassp = (classp->name != NULL) ? classp->subclasses : NULL; while (subclassp && subclassp->name != NULL) { if (subclass == subclassp->val) break; subclassp++; } if (vendor_namep == NULL) cp += snprintf(cp, ep - cp, "%svendor 0x%04x product 0x%04x", unmatched, vendor, product); else if (product_namep != NULL) cp += snprintf(cp, ep - cp, "%s %s", vendor_namep, product_namep); else cp += snprintf(cp, ep - cp, "%s product 0x%04x", vendor_namep, product); if (showclass) { cp += snprintf(cp, ep - cp, " ("); if (classp->name == NULL) cp += snprintf(cp, ep - cp, "class 0x%02x, subclass 0x%02x", class, subclass); else { if (subclassp == NULL || subclassp->name == NULL) cp += snprintf(cp, ep - cp, "%s subclass 0x%02x", classp->name, subclass); else cp += snprintf(cp, ep - cp, "%s %s", subclassp->name, classp->name); } if (interface != 0) cp += snprintf(cp, ep - cp, ", interface 0x%02x", interface); if (revision != 0) cp += snprintf(cp, ep - cp, ", revision 0x%02x", revision); cp += snprintf(cp, ep - cp, ")"); } } /* * Print out most of the PCI configuration registers. Typically used * in a device attach routine like this: * * #ifdef MYDEV_DEBUG * printf("%s: ", sc->sc_dev.dv_xname); * pci_conf_print(pa->pa_pc, pa->pa_tag, NULL); * #endif */ #define i2o(i) ((i) * 4) #define o2i(o) ((o) / 4) #define onoff(str, bit) \ printf(" %s: %s\n", (str), (rval & (bit)) ? "on" : "off"); static void pci_conf_print_common( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs) { const char *name; const struct pci_class *classp, *subclassp; pcireg_t rval; rval = regs[o2i(PCI_ID_REG)]; name = pci_findvendor(rval); if (name) printf(" Vendor Name: %s (0x%04x)\n", name, PCI_VENDOR(rval)); else printf(" Vendor ID: 0x%04x\n", PCI_VENDOR(rval)); name = pci_findproduct(rval); if (name) printf(" Device Name: %s (0x%04x)\n", name, PCI_PRODUCT(rval)); else printf(" Device ID: 0x%04x\n", PCI_PRODUCT(rval)); rval = regs[o2i(PCI_COMMAND_STATUS_REG)]; printf(" Command register: 0x%04x\n", rval & 0xffff); onoff("I/O space accesses", PCI_COMMAND_IO_ENABLE); onoff("Memory space accesses", PCI_COMMAND_MEM_ENABLE); onoff("Bus mastering", PCI_COMMAND_MASTER_ENABLE); onoff("Special cycles", PCI_COMMAND_SPECIAL_ENABLE); onoff("MWI transactions", PCI_COMMAND_INVALIDATE_ENABLE); onoff("Palette snooping", PCI_COMMAND_PALETTE_ENABLE); onoff("Parity error checking", PCI_COMMAND_PARITY_ENABLE); onoff("Address/data stepping", PCI_COMMAND_STEPPING_ENABLE); onoff("System error (SERR)", PCI_COMMAND_SERR_ENABLE); onoff("Fast back-to-back transactions", PCI_COMMAND_BACKTOBACK_ENABLE); onoff("Interrupt disable", PCI_COMMAND_INTERRUPT_DISABLE); printf(" Status register: 0x%04x\n", (rval >> 16) & 0xffff); onoff("Capability List support", PCI_STATUS_CAPLIST_SUPPORT); onoff("66 MHz capable", PCI_STATUS_66MHZ_SUPPORT); onoff("User Definable Features (UDF) support", PCI_STATUS_UDF_SUPPORT); onoff("Fast back-to-back capable", PCI_STATUS_BACKTOBACK_SUPPORT); onoff("Data parity error detected", PCI_STATUS_PARITY_ERROR); printf(" DEVSEL timing: "); switch (rval & PCI_STATUS_DEVSEL_MASK) { case PCI_STATUS_DEVSEL_FAST: printf("fast"); break; case PCI_STATUS_DEVSEL_MEDIUM: printf("medium"); break; case PCI_STATUS_DEVSEL_SLOW: printf("slow"); break; default: printf("unknown/reserved"); /* XXX */ break; } printf(" (0x%x)\n", (rval & PCI_STATUS_DEVSEL_MASK) >> 25); onoff("Slave signaled Target Abort", PCI_STATUS_TARGET_TARGET_ABORT); onoff("Master received Target Abort", PCI_STATUS_MASTER_TARGET_ABORT); onoff("Master received Master Abort", PCI_STATUS_MASTER_ABORT); onoff("Asserted System Error (SERR)", PCI_STATUS_SPECIAL_ERROR); onoff("Parity error detected", PCI_STATUS_PARITY_DETECT); rval = regs[o2i(PCI_CLASS_REG)]; for (classp = pci_class; classp->name != NULL; classp++) { if (PCI_CLASS(rval) == classp->val) break; } subclassp = (classp->name != NULL) ? classp->subclasses : NULL; while (subclassp && subclassp->name != NULL) { if (PCI_SUBCLASS(rval) == subclassp->val) break; subclassp++; } if (classp->name != NULL) { printf(" Class Name: %s (0x%02x)\n", classp->name, PCI_CLASS(rval)); if (subclassp != NULL && subclassp->name != NULL) printf(" Subclass Name: %s (0x%02x)\n", subclassp->name, PCI_SUBCLASS(rval)); else printf(" Subclass ID: 0x%02x\n", PCI_SUBCLASS(rval)); } else { printf(" Class ID: 0x%02x\n", PCI_CLASS(rval)); printf(" Subclass ID: 0x%02x\n", PCI_SUBCLASS(rval)); } printf(" Interface: 0x%02x\n", PCI_INTERFACE(rval)); printf(" Revision ID: 0x%02x\n", PCI_REVISION(rval)); rval = regs[o2i(PCI_BHLC_REG)]; printf(" BIST: 0x%02x\n", PCI_BIST(rval)); printf(" Header Type: 0x%02x%s (0x%02x)\n", PCI_HDRTYPE_TYPE(rval), PCI_HDRTYPE_MULTIFN(rval) ? "+multifunction" : "", PCI_HDRTYPE(rval)); printf(" Latency Timer: 0x%02x\n", PCI_LATTIMER(rval)); printf(" Cache Line Size: 0x%02x\n", PCI_CACHELINE(rval)); } static int pci_conf_print_bar( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs, int reg, const char *name #ifdef _KERNEL , int sizebar #endif ) { int width; pcireg_t rval, rval64h; #ifdef _KERNEL int s; pcireg_t mask, mask64h; #endif width = 4; /* * Section 6.2.5.1, `Address Maps', tells us that: * * 1) The builtin software should have already mapped the * device in a reasonable way. * * 2) A device which wants 2^n bytes of memory will hardwire * the bottom n bits of the address to 0. As recommended, * we write all 1s and see what we get back. */ rval = regs[o2i(reg)]; if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM && PCI_MAPREG_MEM_TYPE(rval) == PCI_MAPREG_MEM_TYPE_64BIT) { rval64h = regs[o2i(reg + 4)]; width = 8; } else rval64h = 0; #ifdef _KERNEL /* XXX don't size unknown memory type? */ if (rval != 0 && sizebar) { /* * The following sequence seems to make some devices * (e.g. host bus bridges, which don't normally * have their space mapped) very unhappy, to * the point of crashing the system. * * Therefore, if the mapping register is zero to * start out with, don't bother trying. */ s = splhigh(); pci_conf_write(pc, tag, reg, 0xffffffff); mask = pci_conf_read(pc, tag, reg); pci_conf_write(pc, tag, reg, rval); if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM && PCI_MAPREG_MEM_TYPE(rval) == PCI_MAPREG_MEM_TYPE_64BIT) { pci_conf_write(pc, tag, reg + 4, 0xffffffff); mask64h = pci_conf_read(pc, tag, reg + 4); pci_conf_write(pc, tag, reg + 4, rval64h); } else mask64h = 0; splx(s); } else mask = mask64h = 0; #endif /* _KERNEL */ printf(" Base address register at 0x%02x", reg); if (name) printf(" (%s)", name); printf("\n "); if (rval == 0) { printf("not implemented(?)\n"); return width; } printf("type: "); if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM) { const char *type, *prefetch; switch (PCI_MAPREG_MEM_TYPE(rval)) { case PCI_MAPREG_MEM_TYPE_32BIT: type = "32-bit"; break; case PCI_MAPREG_MEM_TYPE_32BIT_1M: type = "32-bit-1M"; break; case PCI_MAPREG_MEM_TYPE_64BIT: type = "64-bit"; break; default: type = "unknown (XXX)"; break; } if (PCI_MAPREG_MEM_PREFETCHABLE(rval)) prefetch = ""; else prefetch = "non"; printf("%s %sprefetchable memory\n", type, prefetch); switch (PCI_MAPREG_MEM_TYPE(rval)) { case PCI_MAPREG_MEM_TYPE_64BIT: printf(" base: 0x%016llx, ", PCI_MAPREG_MEM64_ADDR( ((((long long) rval64h) << 32) | rval))); #ifdef _KERNEL if (sizebar) printf("size: 0x%016llx", PCI_MAPREG_MEM64_SIZE( ((((long long) mask64h) << 32) | mask))); else #endif /* _KERNEL */ printf("not sized"); printf("\n"); break; case PCI_MAPREG_MEM_TYPE_32BIT: case PCI_MAPREG_MEM_TYPE_32BIT_1M: default: printf(" base: 0x%08x, ", PCI_MAPREG_MEM_ADDR(rval)); #ifdef _KERNEL if (sizebar) printf("size: 0x%08x", PCI_MAPREG_MEM_SIZE(mask)); else #endif /* _KERNEL */ printf("not sized"); printf("\n"); break; } } else { #ifdef _KERNEL if (sizebar) printf("%d-bit ", mask & ~0x0000ffff ? 32 : 16); #endif /* _KERNEL */ printf("i/o\n"); printf(" base: 0x%08x, ", PCI_MAPREG_IO_ADDR(rval)); #ifdef _KERNEL if (sizebar) printf("size: 0x%08x", PCI_MAPREG_IO_SIZE(mask)); else #endif /* _KERNEL */ printf("not sized"); printf("\n"); } return width; } static void pci_conf_print_regs(const pcireg_t *regs, int first, int pastlast) { int off, needaddr, neednl; needaddr = 1; neednl = 0; for (off = first; off < pastlast; off += 4) { if ((off % 16) == 0 || needaddr) { printf(" 0x%02x:", off); needaddr = 0; } printf(" 0x%08x", regs[o2i(off)]); neednl = 1; if ((off % 16) == 12) { printf("\n"); neednl = 0; } } if (neednl) printf("\n"); } static void pci_conf_print_type0( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs #ifdef _KERNEL , int sizebars #endif ) { int off, width; pcireg_t rval; for (off = PCI_MAPREG_START; off < PCI_MAPREG_END; off += width) { #ifdef _KERNEL width = pci_conf_print_bar(pc, tag, regs, off, NULL, sizebars); #else width = pci_conf_print_bar(regs, off, NULL); #endif } printf(" Cardbus CIS Pointer: 0x%08x\n", regs[o2i(0x28)]); rval = regs[o2i(PCI_SUBSYS_ID_REG)]; printf(" Subsystem vendor ID: 0x%04x\n", PCI_VENDOR(rval)); printf(" Subsystem ID: 0x%04x\n", PCI_PRODUCT(rval)); /* XXX */ printf(" Expansion ROM Base Address: 0x%08x\n", regs[o2i(0x30)]); if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) printf(" Capability list pointer: 0x%02x\n", PCI_CAPLIST_PTR(regs[o2i(PCI_CAPLISTPTR_REG)])); else printf(" Reserved @ 0x34: 0x%08x\n", regs[o2i(0x34)]); printf(" Reserved @ 0x38: 0x%08x\n", regs[o2i(0x38)]); rval = regs[o2i(PCI_INTERRUPT_REG)]; printf(" Maximum Latency: 0x%02x\n", (rval >> 24) & 0xff); printf(" Minimum Grant: 0x%02x\n", (rval >> 16) & 0xff); printf(" Interrupt pin: 0x%02x ", PCI_INTERRUPT_PIN(rval)); switch (PCI_INTERRUPT_PIN(rval)) { case PCI_INTERRUPT_PIN_NONE: printf("(none)"); break; case PCI_INTERRUPT_PIN_A: printf("(pin A)"); break; case PCI_INTERRUPT_PIN_B: printf("(pin B)"); break; case PCI_INTERRUPT_PIN_C: printf("(pin C)"); break; case PCI_INTERRUPT_PIN_D: printf("(pin D)"); break; default: printf("(? ? ?)"); break; } printf("\n"); printf(" Interrupt line: 0x%02x\n", PCI_INTERRUPT_LINE(rval)); } static void pci_conf_print_caplist( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs, int capoff) { static const char unk[] = "unknown"; static const char *pmrev[8] = { unk, "1.0", "1.1", "1.2", unk, unk, unk, unk }; int off; pcireg_t rval; for (off = PCI_CAPLIST_PTR(regs[o2i(capoff)]); off != 0; off = PCI_CAPLIST_NEXT(regs[o2i(off)])) { rval = regs[o2i(off)]; printf(" Capability register at 0x%02x\n", off); printf(" type: 0x%02x (", PCI_CAPLIST_CAP(rval)); switch (PCI_CAPLIST_CAP(rval)) { case PCI_CAP_RESERVED0: printf("reserved"); break; case PCI_CAP_PWRMGMT: printf("Power Management, rev. %s", pmrev[(rval >> 0) & 0x07]); break; case PCI_CAP_AGP: printf("AGP, rev. %d.%d", PCI_CAP_AGP_MAJOR(rval), PCI_CAP_AGP_MINOR(rval)); break; case PCI_CAP_VPD: printf("VPD"); break; case PCI_CAP_SLOTID: printf("SlotID"); break; case PCI_CAP_MSI: printf("MSI"); break; case PCI_CAP_CPCI_HOTSWAP: printf("CompactPCI Hot-swapping"); break; case PCI_CAP_PCIX: printf("PCI-X"); break; case PCI_CAP_LDT: printf("LDT"); break; case PCI_CAP_VENDSPEC: printf("Vendor-specific"); break; case PCI_CAP_DEBUGPORT: printf("Debug Port"); break; case PCI_CAP_CPCI_RSRCCTL: printf("CompactPCI Resource Control"); break; case PCI_CAP_HOTPLUG: printf("Hot-Plug"); break; case PCI_CAP_AGP8: printf("AGP 8x"); break; case PCI_CAP_SECURE: printf("Secure Device"); break; case PCI_CAP_PCIEXPRESS: printf("PCI Express"); break; case PCI_CAP_MSIX: printf("MSI-X"); break; default: printf("unknown"); } printf(")\n"); } } static void pci_conf_print_type1( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs #ifdef _KERNEL , int sizebars #endif ) { int off, width; pcireg_t rval; /* * XXX these need to be printed in more detail, need to be * XXX checked against specs/docs, etc. * * This layout was cribbed from the TI PCI2030 PCI-to-PCI * Bridge chip documentation, and may not be correct with * respect to various standards. (XXX) */ for (off = 0x10; off < 0x18; off += width) { #ifdef _KERNEL width = pci_conf_print_bar(pc, tag, regs, off, NULL, sizebars); #else width = pci_conf_print_bar(regs, off, NULL); #endif } printf(" Primary bus number: 0x%02x\n", (regs[o2i(0x18)] >> 0) & 0xff); printf(" Secondary bus number: 0x%02x\n", (regs[o2i(0x18)] >> 8) & 0xff); printf(" Subordinate bus number: 0x%02x\n", (regs[o2i(0x18)] >> 16) & 0xff); printf(" Secondary bus latency timer: 0x%02x\n", (regs[o2i(0x18)] >> 24) & 0xff); rval = (regs[o2i(0x1c)] >> 16) & 0xffff; printf(" Secondary status register: 0x%04x\n", rval); /* XXX bits */ onoff("66 MHz capable", 0x0020); onoff("User Definable Features (UDF) support", 0x0040); onoff("Fast back-to-back capable", 0x0080); onoff("Data parity error detected", 0x0100); printf(" DEVSEL timing: "); switch (rval & 0x0600) { case 0x0000: printf("fast"); break; case 0x0200: printf("medium"); break; case 0x0400: printf("slow"); break; default: printf("unknown/reserved"); /* XXX */ break; } printf(" (0x%x)\n", (rval & 0x0600) >> 9); onoff("Signaled Target Abort", 0x0800); onoff("Received Target Abort", 0x1000); onoff("Received Master Abort", 0x2000); onoff("System Error", 0x4000); onoff("Parity Error", 0x8000); /* XXX Print more prettily */ printf(" I/O region:\n"); printf(" base register: 0x%02x\n", (regs[o2i(0x1c)] >> 0) & 0xff); printf(" limit register: 0x%02x\n", (regs[o2i(0x1c)] >> 8) & 0xff); printf(" base upper 16 bits register: 0x%04x\n", (regs[o2i(0x30)] >> 0) & 0xffff); printf(" limit upper 16 bits register: 0x%04x\n", (regs[o2i(0x30)] >> 16) & 0xffff); /* XXX Print more prettily */ printf(" Memory region:\n"); printf(" base register: 0x%04x\n", (regs[o2i(0x20)] >> 0) & 0xffff); printf(" limit register: 0x%04x\n", (regs[o2i(0x20)] >> 16) & 0xffff); /* XXX Print more prettily */ printf(" Prefetchable memory region:\n"); printf(" base register: 0x%04x\n", (regs[o2i(0x24)] >> 0) & 0xffff); printf(" limit register: 0x%04x\n", (regs[o2i(0x24)] >> 16) & 0xffff); printf(" base upper 32 bits register: 0x%08x\n", regs[o2i(0x28)]); printf(" limit upper 32 bits register: 0x%08x\n", regs[o2i(0x2c)]); if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) printf(" Capability list pointer: 0x%02x\n", PCI_CAPLIST_PTR(regs[o2i(PCI_CAPLISTPTR_REG)])); else printf(" Reserved @ 0x34: 0x%08x\n", regs[o2i(0x34)]); /* XXX */ printf(" Expansion ROM Base Address: 0x%08x\n", regs[o2i(0x38)]); printf(" Interrupt line: 0x%02x\n", (regs[o2i(0x3c)] >> 0) & 0xff); printf(" Interrupt pin: 0x%02x ", (regs[o2i(0x3c)] >> 8) & 0xff); switch ((regs[o2i(0x3c)] >> 8) & 0xff) { case PCI_INTERRUPT_PIN_NONE: printf("(none)"); break; case PCI_INTERRUPT_PIN_A: printf("(pin A)"); break; case PCI_INTERRUPT_PIN_B: printf("(pin B)"); break; case PCI_INTERRUPT_PIN_C: printf("(pin C)"); break; case PCI_INTERRUPT_PIN_D: printf("(pin D)"); break; default: printf("(? ? ?)"); break; } printf("\n"); rval = (regs[o2i(0x3c)] >> 16) & 0xffff; printf(" Bridge control register: 0x%04x\n", rval); /* XXX bits */ onoff("Parity error response", 0x0001); onoff("Secondary SERR forwarding", 0x0002); onoff("ISA enable", 0x0004); onoff("VGA enable", 0x0008); onoff("Master abort reporting", 0x0020); onoff("Secondary bus reset", 0x0040); onoff("Fast back-to-back capable", 0x0080); } static void pci_conf_print_type2( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs #ifdef _KERNEL , int sizebars #endif ) { pcireg_t rval; /* * XXX these need to be printed in more detail, need to be * XXX checked against specs/docs, etc. * * This layout was cribbed from the TI PCI1130 PCI-to-CardBus * controller chip documentation, and may not be correct with * respect to various standards. (XXX) */ #ifdef _KERNEL pci_conf_print_bar(pc, tag, regs, 0x10, "CardBus socket/ExCA registers", sizebars); #else pci_conf_print_bar(regs, 0x10, "CardBus socket/ExCA registers"); #endif if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) printf(" Capability list pointer: 0x%02x\n", PCI_CAPLIST_PTR(regs[o2i(PCI_CARDBUS_CAPLISTPTR_REG)])); else printf(" Reserved @ 0x14: 0x%04x\n", (regs[o2i(0x14)] >> 0) & 0xffff); rval = (regs[o2i(0x14)] >> 16) & 0xffff; printf(" Secondary status register: 0x%04x\n", rval); onoff("66 MHz capable", 0x0020); onoff("User Definable Features (UDF) support", 0x0040); onoff("Fast back-to-back capable", 0x0080); onoff("Data parity error detection", 0x0100); printf(" DEVSEL timing: "); switch (rval & 0x0600) { case 0x0000: printf("fast"); break; case 0x0200: printf("medium"); break; case 0x0400: printf("slow"); break; default: printf("unknown/reserved"); /* XXX */ break; } printf(" (0x%x)\n", (rval & 0x0600) >> 9); onoff("PCI target aborts terminate CardBus bus master transactions", 0x0800); onoff("CardBus target aborts terminate PCI bus master transactions", 0x1000); onoff("Bus initiator aborts terminate initiator transactions", 0x2000); onoff("System error", 0x4000); onoff("Parity error", 0x8000); printf(" PCI bus number: 0x%02x\n", (regs[o2i(0x18)] >> 0) & 0xff); printf(" CardBus bus number: 0x%02x\n", (regs[o2i(0x18)] >> 8) & 0xff); printf(" Subordinate bus number: 0x%02x\n", (regs[o2i(0x18)] >> 16) & 0xff); printf(" CardBus latency timer: 0x%02x\n", (regs[o2i(0x18)] >> 24) & 0xff); /* XXX Print more prettily */ printf(" CardBus memory region 0:\n"); printf(" base register: 0x%08x\n", regs[o2i(0x1c)]); printf(" limit register: 0x%08x\n", regs[o2i(0x20)]); printf(" CardBus memory region 1:\n"); printf(" base register: 0x%08x\n", regs[o2i(0x24)]); printf(" limit register: 0x%08x\n", regs[o2i(0x28)]); printf(" CardBus I/O region 0:\n"); printf(" base register: 0x%08x\n", regs[o2i(0x2c)]); printf(" limit register: 0x%08x\n", regs[o2i(0x30)]); printf(" CardBus I/O region 1:\n"); printf(" base register: 0x%08x\n", regs[o2i(0x34)]); printf(" limit register: 0x%08x\n", regs[o2i(0x38)]); printf(" Interrupt line: 0x%02x\n", (regs[o2i(0x3c)] >> 0) & 0xff); printf(" Interrupt pin: 0x%02x ", (regs[o2i(0x3c)] >> 8) & 0xff); switch ((regs[o2i(0x3c)] >> 8) & 0xff) { case PCI_INTERRUPT_PIN_NONE: printf("(none)"); break; case PCI_INTERRUPT_PIN_A: printf("(pin A)"); break; case PCI_INTERRUPT_PIN_B: printf("(pin B)"); break; case PCI_INTERRUPT_PIN_C: printf("(pin C)"); break; case PCI_INTERRUPT_PIN_D: printf("(pin D)"); break; default: printf("(? ? ?)"); break; } printf("\n"); rval = (regs[o2i(0x3c)] >> 16) & 0xffff; printf(" Bridge control register: 0x%04x\n", rval); onoff("Parity error response", 0x0001); onoff("CardBus SERR forwarding", 0x0002); onoff("ISA enable", 0x0004); onoff("VGA enable", 0x0008); onoff("CardBus master abort reporting", 0x0020); onoff("CardBus reset", 0x0040); onoff("Functional interrupts routed by ExCA registers", 0x0080); onoff("Memory window 0 prefetchable", 0x0100); onoff("Memory window 1 prefetchable", 0x0200); onoff("Write posting enable", 0x0400); rval = regs[o2i(0x40)]; printf(" Subsystem vendor ID: 0x%04x\n", PCI_VENDOR(rval)); printf(" Subsystem ID: 0x%04x\n", PCI_PRODUCT(rval)); #ifdef _KERNEL pci_conf_print_bar(pc, tag, regs, 0x44, "legacy-mode registers", sizebars); #else pci_conf_print_bar(regs, 0x44, "legacy-mode registers"); #endif } void pci_conf_print( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, void (*printfn)(pci_chipset_tag_t, pcitag_t, const pcireg_t *) #else int pcifd, u_int bus, u_int dev, u_int func #endif ) { pcireg_t regs[o2i(256)]; int off, capoff, endoff, hdrtype; const char *typename; #ifdef _KERNEL void (*typeprintfn)(pci_chipset_tag_t, pcitag_t, const pcireg_t *, int); int sizebars; #else void (*typeprintfn)(const pcireg_t *); #endif printf("PCI configuration registers:\n"); for (off = 0; off < 256; off += 4) { #ifdef _KERNEL regs[o2i(off)] = pci_conf_read(pc, tag, off); #else if (pcibus_conf_read(pcifd, bus, dev, func, off, ®s[o2i(off)]) == -1) regs[o2i(off)] = 0; #endif } #ifdef _KERNEL sizebars = 1; if (PCI_CLASS(regs[o2i(PCI_CLASS_REG)]) == PCI_CLASS_BRIDGE && PCI_SUBCLASS(regs[o2i(PCI_CLASS_REG)]) == PCI_SUBCLASS_BRIDGE_HOST) sizebars = 0; #endif /* common header */ printf(" Common header:\n"); pci_conf_print_regs(regs, 0, 16); printf("\n"); #ifdef _KERNEL pci_conf_print_common(pc, tag, regs); #else pci_conf_print_common(regs); #endif printf("\n"); /* type-dependent header */ hdrtype = PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)]); switch (hdrtype) { /* XXX make a table, eventually */ case 0: /* Standard device header */ typename = "\"normal\" device"; typeprintfn = &pci_conf_print_type0; capoff = PCI_CAPLISTPTR_REG; endoff = 64; break; case 1: /* PCI-PCI bridge header */ typename = "PCI-PCI bridge"; typeprintfn = &pci_conf_print_type1; capoff = PCI_CAPLISTPTR_REG; endoff = 64; break; case 2: /* PCI-CardBus bridge header */ typename = "PCI-CardBus bridge"; typeprintfn = &pci_conf_print_type2; capoff = PCI_CARDBUS_CAPLISTPTR_REG; endoff = 72; break; default: typename = NULL; typeprintfn = 0; capoff = -1; endoff = 64; break; } printf(" Type %d ", hdrtype); if (typename != NULL) printf("(%s) ", typename); printf("header:\n"); pci_conf_print_regs(regs, 16, endoff); printf("\n"); if (typeprintfn) { #ifdef _KERNEL (*typeprintfn)(pc, tag, regs, sizebars); #else (*typeprintfn)(regs); #endif } else printf(" Don't know how to pretty-print type %d header.\n", hdrtype); printf("\n"); /* capability list, if present */ if ((regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) && (capoff > 0)) { #ifdef _KERNEL pci_conf_print_caplist(pc, tag, regs, capoff); #else pci_conf_print_caplist(regs, capoff); #endif printf("\n"); } /* device-dependent header */ printf(" Device-dependent header:\n"); pci_conf_print_regs(regs, endoff, 256); printf("\n"); #ifdef _KERNEL if (printfn) (*printfn)(pc, tag, regs); else printf(" Don't know how to pretty-print device-dependent header.\n"); printf("\n"); #endif /* _KERNEL */ }