/* $NetBSD: pci_subr.c,v 1.244 2024/04/19 21:24:00 andvar 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 1.244 2024/04/19 21:24:00 andvar Exp $"); #ifdef _KERNEL_OPT #include "opt_pci.h" #endif #include #ifdef _KERNEL #include #include #include #include #define MALLOC(sz) kmem_alloc(sz, KM_SLEEP) #define FREE(p, sz) kmem_free(p, sz) #else #include #include #include #include #include #include #define MALLOC(sz) malloc(sz) #define FREE(p, sz) free(p) #endif #include #include #ifdef _KERNEL #include #else #include #include #endif static int pci_conf_find_cap(const pcireg_t *, unsigned int, int *); static int pci_conf_find_extcap(const pcireg_t *, unsigned int, int *); static void pci_conf_print_pcie_power(uint8_t, unsigned int); #define PCIREG_SHIFTOUT(a, b) ((pcireg_t)__SHIFTOUT((a), (b))) #ifdef _KERNEL /* * Common routines used to match a compatible device by its PCI ID code. */ const struct device_compatible_entry * pci_compatible_lookup_id(pcireg_t const id, const struct device_compatible_entry *dce) { return device_compatible_lookup_id(id, PCI_COMPAT_EOL_VALUE, dce); } const struct device_compatible_entry * pci_compatible_lookup(const struct pci_attach_args * const pa, const struct device_compatible_entry * const dce) { return pci_compatible_lookup_id(pa->pa_id, dce); } const struct device_compatible_entry * pci_compatible_lookup_subsys(const struct pci_attach_args * const pa, const struct device_compatible_entry * const dce) { const pcireg_t subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); return pci_compatible_lookup_id(subsysid, dce); } int pci_compatible_match(const struct pci_attach_args * const pa, const struct device_compatible_entry * const dce) { return pci_compatible_lookup(pa, dce) != NULL; } int pci_compatible_match_subsys(const struct pci_attach_args * const pa, const struct device_compatible_entry * const dce) { return pci_compatible_lookup_subsys(pa, dce) != NULL; } #endif /* _KERNEL */ /* * 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; u_int val; /* as wide as pci_{,sub}class_t */ const struct pci_class *subclasses; }; /* * Class 0x00. * Before rev. 2.0. */ static const struct pci_class pci_subclass_prehistoric[] = { { "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC, NULL, }, { "VGA", PCI_SUBCLASS_PREHISTORIC_VGA, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x01. * Mass storage controller */ /* SCSI programming interface */ static const struct pci_class pci_interface_scsi[] = { { "vendor-specific", PCI_INTERFACE_SCSI_VND, NULL, }, { "PQI storage", PCI_INTERFACE_SCSI_PQI_STORAGE, NULL, }, { "PQI controller", PCI_INTERFACE_SCSI_PQI_CNTRL, NULL, }, { "PQI storage and controller", PCI_INTERFACE_SCSI_PQI_STORAGE_CNTRL, NULL, }, { "NVME", PCI_INTERFACE_SCSI_NVME, NULL, }, { NULL, 0, NULL, }, }; /* ATA programming interface */ static const struct pci_class pci_interface_ata[] = { { "with single DMA", PCI_INTERFACE_ATA_SINGLEDMA, NULL, }, { "with chained DMA", PCI_INTERFACE_ATA_CHAINEDDMA, NULL, }, { NULL, 0, NULL, }, }; /* SATA programming interface */ static const struct pci_class pci_interface_sata[] = { { "vendor-specific", PCI_INTERFACE_SATA_VND, NULL, }, { "AHCI 1.0", PCI_INTERFACE_SATA_AHCI10, NULL, }, { "Serial Storage Bus Interface", PCI_INTERFACE_SATA_SSBI, NULL, }, { NULL, 0, NULL, }, }; /* Flash programming interface */ static const struct pci_class pci_interface_nvm[] = { { "vendor-specific", PCI_INTERFACE_NVM_VND, NULL, }, { "NVMHCI 1.0", PCI_INTERFACE_NVM_NVMHCI10, NULL, }, { "NVMe I/O", PCI_INTERFACE_NVM_NVME_IO, NULL, }, { "NVMe admin", PCI_INTERFACE_NVM_NVME_ADMIN, NULL, }, { NULL, 0, NULL, }, }; /* UFS programming interface */ static const struct pci_class pci_interface_ufs[] = { { "vendor-specific", PCI_INTERFACE_UFS_VND, NULL, }, { "UFSHCI", PCI_INTERFACE_UFS_UFSHCI, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ static const struct pci_class pci_subclass_mass_storage[] = { { "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI, pci_interface_scsi }, { "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, pci_interface_ata }, { "SATA", PCI_SUBCLASS_MASS_STORAGE_SATA, pci_interface_sata }, { "SAS", PCI_SUBCLASS_MASS_STORAGE_SAS, NULL, }, { "Flash", PCI_SUBCLASS_MASS_STORAGE_NVM, pci_interface_nvm, }, { "UFS", PCI_SUBCLASS_MASS_STORAGE_UFS, pci_interface_ufs, }, { "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x02. * Network controller. */ 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, }, { "InfiniBand", PCI_SUBCLASS_NETWORK_INFINIBAND, NULL, }, { "Host fabric", PCI_SUBCLASS_NETWORK_HFC, NULL, }, { "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x03. * Display controller. */ /* VGA programming interface */ static const struct pci_class pci_interface_vga[] = { { "", PCI_INTERFACE_VGA_VGA, NULL, }, { "8514-compat", PCI_INTERFACE_VGA_8514, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ static const struct pci_class pci_subclass_display[] = { { "VGA", PCI_SUBCLASS_DISPLAY_VGA, pci_interface_vga,}, { "XGA", PCI_SUBCLASS_DISPLAY_XGA, NULL, }, { "3D", PCI_SUBCLASS_DISPLAY_3D, NULL, }, { "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x04. * Multimedia device. */ /* HD Audio programming interface */ static const struct pci_class pci_interface_hda[] = { { "HD Audio 1.0", PCI_INTERFACE_HDAUDIO, NULL, }, { "HD Audio 1.0 + vendor-ext", PCI_INTERFACE_HDAUDIO_VND, 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,}, { "mixed mode", PCI_SUBCLASS_MULTIMEDIA_HDAUDIO, pci_interface_hda, }, { "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x05. * Memory controller. */ 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, }, }; /* * Class 0x06. * Bridge device. */ /* PCI bridge programming interface */ static const struct pci_class pci_interface_pcibridge[] = { { "", PCI_INTERFACE_BRIDGE_PCI_PCI, NULL, }, { "subtractive decode", PCI_INTERFACE_BRIDGE_PCI_SUBDEC, NULL, }, { NULL, 0, NULL, }, }; /* Semi-transparent PCI-to-PCI bridge programming interface */ static const struct pci_class pci_interface_stpci[] = { { "primary side facing host", PCI_INTERFACE_STPCI_PRIMARY, NULL, }, { "secondary side facing host", PCI_INTERFACE_STPCI_SECONDARY, NULL, }, { NULL, 0, NULL, }, }; /* Advanced Switching programming interface */ static const struct pci_class pci_interface_advsw[] = { { "custom interface", PCI_INTERFACE_ADVSW_CUSTOM, NULL, }, { "ASI-SIG", PCI_INTERFACE_ADVSW_ASISIG, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ 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, pci_interface_pcibridge }, { "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, pci_interface_stpci, }, { "InfiniBand", PCI_SUBCLASS_BRIDGE_INFINIBAND, NULL, }, { "advanced switching", PCI_SUBCLASS_BRIDGE_ADVSW, pci_interface_advsw, }, { "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x07. * Simple communications controller. */ /* Serial controller programming interface */ static const struct pci_class pci_interface_serial[] = { { "generic XT-compat", PCI_INTERFACE_SERIAL_XT, NULL, }, { "16450-compat", PCI_INTERFACE_SERIAL_16450, NULL, }, { "16550-compat", PCI_INTERFACE_SERIAL_16550, NULL, }, { "16650-compat", PCI_INTERFACE_SERIAL_16650, NULL, }, { "16750-compat", PCI_INTERFACE_SERIAL_16750, NULL, }, { "16850-compat", PCI_INTERFACE_SERIAL_16850, NULL, }, { "16950-compat", PCI_INTERFACE_SERIAL_16950, NULL, }, { NULL, 0, NULL, }, }; /* Parallel controller programming interface */ static const struct pci_class pci_interface_parallel[] = { { "", PCI_INTERFACE_PARALLEL, NULL,}, { "bi-directional", PCI_INTERFACE_PARALLEL_BIDIRECTIONAL, NULL,}, { "ECP 1.X-compat", PCI_INTERFACE_PARALLEL_ECP1X, NULL,}, { "IEEE1284 controller", PCI_INTERFACE_PARALLEL_IEEE1284_CNTRL, NULL,}, { "IEEE1284 target", PCI_INTERFACE_PARALLEL_IEEE1284_TGT, NULL,}, { NULL, 0, NULL,}, }; /* Modem programming interface */ static const struct pci_class pci_interface_modem[] = { { "", PCI_INTERFACE_MODEM, NULL,}, { "Hayes&16450-compat", PCI_INTERFACE_MODEM_HAYES16450, NULL,}, { "Hayes&16550-compat", PCI_INTERFACE_MODEM_HAYES16550, NULL,}, { "Hayes&16650-compat", PCI_INTERFACE_MODEM_HAYES16650, NULL,}, { "Hayes&16750-compat", PCI_INTERFACE_MODEM_HAYES16750, NULL,}, { NULL, 0, NULL,}, }; /* Subclasses */ static const struct pci_class pci_subclass_communications[] = { { "serial", PCI_SUBCLASS_COMMUNICATIONS_SERIAL, pci_interface_serial, }, { "parallel", PCI_SUBCLASS_COMMUNICATIONS_PARALLEL, pci_interface_parallel, }, { "multi-port serial", PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL, NULL,}, { "modem", PCI_SUBCLASS_COMMUNICATIONS_MODEM, pci_interface_modem, }, { "GPIB", PCI_SUBCLASS_COMMUNICATIONS_GPIB, NULL,}, { "smartcard", PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD, NULL,}, { "miscellaneous", PCI_SUBCLASS_COMMUNICATIONS_MISC, NULL,}, { NULL, 0, NULL,}, }; /* * Class 0x08. * Base system peripheral. */ /* PIC programming interface */ static const struct pci_class pci_interface_pic[] = { { "generic 8259", PCI_INTERFACE_PIC_8259, NULL, }, { "ISA PIC", PCI_INTERFACE_PIC_ISA, NULL, }, { "EISA PIC", PCI_INTERFACE_PIC_EISA, NULL, }, { "IO APIC", PCI_INTERFACE_PIC_IOAPIC, NULL, }, { "IO(x) APIC", PCI_INTERFACE_PIC_IOXAPIC, NULL, }, { NULL, 0, NULL, }, }; /* DMA programming interface */ static const struct pci_class pci_interface_dma[] = { { "generic 8237", PCI_INTERFACE_DMA_8237, NULL, }, { "ISA", PCI_INTERFACE_DMA_ISA, NULL, }, { "EISA", PCI_INTERFACE_DMA_EISA, NULL, }, { NULL, 0, NULL, }, }; /* Timer programming interface */ static const struct pci_class pci_interface_tmr[] = { { "generic 8254", PCI_INTERFACE_TIMER_8254, NULL, }, { "ISA", PCI_INTERFACE_TIMER_ISA, NULL, }, { "EISA", PCI_INTERFACE_TIMER_EISA, NULL, }, { "HPET", PCI_INTERFACE_TIMER_HPET, NULL, }, { NULL, 0, NULL, }, }; /* RTC programming interface */ static const struct pci_class pci_interface_rtc[] = { { "generic", PCI_INTERFACE_RTC_GENERIC, NULL, }, { "ISA", PCI_INTERFACE_RTC_ISA, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ static const struct pci_class pci_subclass_system[] = { { "interrupt", PCI_SUBCLASS_SYSTEM_PIC, pci_interface_pic,}, { "DMA", PCI_SUBCLASS_SYSTEM_DMA, pci_interface_dma,}, { "timer", PCI_SUBCLASS_SYSTEM_TIMER, pci_interface_tmr,}, { "RTC", PCI_SUBCLASS_SYSTEM_RTC, pci_interface_rtc,}, { "PCI Hot-Plug", PCI_SUBCLASS_SYSTEM_PCIHOTPLUG, NULL, }, { "SD Host Controller", PCI_SUBCLASS_SYSTEM_SDHC, NULL, }, { "IOMMU", PCI_SUBCLASS_SYSTEM_IOMMU, NULL, }, { "Root Complex Event Collector", PCI_SUBCLASS_SYSTEM_RCEC, NULL, }, { "miscellaneous", PCI_SUBCLASS_SYSTEM_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x09. * Input device. */ /* Gameport programming interface */ static const struct pci_class pci_interface_game[] = { { "generic", PCI_INTERFACE_GAMEPORT_GENERIC, NULL, }, { "legacy", PCI_INTERFACE_GAMEPORT_LEGACY, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ 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, pci_interface_game, }, { "miscellaneous", PCI_SUBCLASS_INPUT_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0a. * Docking station. */ static const struct pci_class pci_subclass_dock[] = { { "generic", PCI_SUBCLASS_DOCK_GENERIC, NULL, }, { "miscellaneous", PCI_SUBCLASS_DOCK_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0b. * Processor. */ 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, }, { "miscellaneous", PCI_SUBCLASS_PROCESSOR_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0c. * Serial bus controller. */ /* IEEE1394 programming interface */ static const struct pci_class pci_interface_ieee1394[] = { { "Firewire", PCI_INTERFACE_IEEE1394_FIREWIRE, NULL,}, { "OpenHCI", PCI_INTERFACE_IEEE1394_OPENHCI, NULL,}, { NULL, 0, NULL,}, }; /* USB programming interface */ static const struct pci_class pci_interface_usb[] = { { "UHCI", PCI_INTERFACE_USB_UHCI, NULL, }, { "OHCI", PCI_INTERFACE_USB_OHCI, NULL, }, { "EHCI", PCI_INTERFACE_USB_EHCI, NULL, }, { "xHCI", PCI_INTERFACE_USB_XHCI, NULL, }, { "USB4 HCI", PCI_INTERFACE_USB_USB4HCI, NULL, }, { "other HC", PCI_INTERFACE_USB_OTHERHC, NULL, }, { "device", PCI_INTERFACE_USB_DEVICE, NULL, }, { NULL, 0, NULL, }, }; /* IPMI programming interface */ static const struct pci_class pci_interface_ipmi[] = { { "SMIC", PCI_INTERFACE_IPMI_SMIC, NULL, }, { "keyboard", PCI_INTERFACE_IPMI_KBD, NULL, }, { "block transfer", PCI_INTERFACE_IPMI_BLOCKXFER, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ static const struct pci_class pci_subclass_serialbus[] = { { "IEEE1394", PCI_SUBCLASS_SERIALBUS_FIREWIRE, pci_interface_ieee1394, }, { "ACCESS.bus", PCI_SUBCLASS_SERIALBUS_ACCESS, NULL, }, { "SSA", PCI_SUBCLASS_SERIALBUS_SSA, NULL, }, { "USB", PCI_SUBCLASS_SERIALBUS_USB, pci_interface_usb, }, /* 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, pci_interface_ipmi, }, { "SERCOS", PCI_SUBCLASS_SERIALBUS_SERCOS, NULL, }, { "CANbus", PCI_SUBCLASS_SERIALBUS_CANBUS, NULL, }, { "MIPI I3C", PCI_SUBCLASS_SERIALBUS_MIPI_I3C, NULL, }, { "miscellaneous", PCI_SUBCLASS_SERIALBUS_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0d. * Wireless Controller. */ static const struct pci_class pci_subclass_wireless[] = { { "IrDA", PCI_SUBCLASS_WIRELESS_IRDA, NULL, }, { "Consumer IR",/*XXX*/ 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, }, { "Cellular", PCI_SUBCLASS_WIRELESS_CELL, NULL, }, { "Cellular + Ethernet", PCI_SUBCLASS_WIRELESS_CELL_E, NULL, }, { "miscellaneous", PCI_SUBCLASS_WIRELESS_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0e. * Intelligent IO controller. */ /* Intelligent IO programming interface */ static const struct pci_class pci_interface_i2o[] = { { "FIFO at offset 0x40", PCI_INTERFACE_I2O_FIFOAT40, NULL, }, { NULL, 0, NULL, }, }; /* Subclasses */ static const struct pci_class pci_subclass_i2o[] = { { "standard", PCI_SUBCLASS_I2O_STANDARD, pci_interface_i2o,}, { "miscellaneous", PCI_SUBCLASS_I2O_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x0f. * Satellite communication controller. */ 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, }, { "miscellaneous", PCI_SUBCLASS_SATCOM_MISC, NULL, }, { NULL, 0, NULL, }, }; /* * Class 0x10. * Encryption/Decryption controller. */ 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, }, }; /* * Class 0x11. * Data acquisition and signal processing controller. */ static const struct pci_class pci_subclass_dasp[] = { { "DPIO", PCI_SUBCLASS_DASP_DPIO, NULL, }, { "performance counters", 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, }, }; /* List of classes */ static const struct pci_class pci_classes[] = { { "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, }, { "processing accelerators", PCI_CLASS_ACCEL, NULL, }, { "non-essential instrumentation", PCI_CLASS_INSTRUMENT, NULL, }, { "undefined", PCI_CLASS_UNDEFINED, NULL, }, { NULL, 0, NULL, }, }; DEV_VERBOSE_DEFINE(pci); /* * Append a formatted string to dest without writing more than len * characters (including the trailing NUL character). dest and len * are updated for use in subsequent calls to snappendf(). * * Returns 0 on success, a negative value if vnsprintf() fails, or * a positive value if the dest buffer would have overflowed. */ static int __printflike(3, 4) snappendf(char **dest, size_t *len, const char * restrict fmt, ...) { va_list ap; int count; va_start(ap, fmt); count = vsnprintf(*dest, *len, fmt, ap); va_end(ap); /* Let vsnprintf() errors bubble up to caller */ if (count < 0 || *len == 0) return count; /* Handle overflow */ if ((size_t)count >= *len) { *dest += *len - 1; *len = 1; return 1; } /* Update dest & len to point at trailing NUL */ *dest += count; *len -= count; return 0; } void pci_devinfo(pcireg_t id_reg, pcireg_t class_reg, int showclass, char *cp, size_t l) { pci_class_t class; pci_subclass_t subclass; pci_interface_t interface; pci_revision_t revision; char vendor[PCI_VENDORSTR_LEN], product[PCI_PRODUCTSTR_LEN]; const struct pci_class *classp, *subclassp, *interfacep; class = PCI_CLASS(class_reg); subclass = PCI_SUBCLASS(class_reg); interface = PCI_INTERFACE(class_reg); revision = PCI_REVISION(class_reg); pci_findvendor(vendor, sizeof(vendor), PCI_VENDOR(id_reg)); pci_findproduct(product, sizeof(product), PCI_VENDOR(id_reg), PCI_PRODUCT(id_reg)); classp = pci_classes; 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++; } interfacep = (subclassp && subclassp->name != NULL) ? subclassp->subclasses : NULL; while (interfacep && interfacep->name != NULL) { if (interface == interfacep->val) break; interfacep++; } (void)snappendf(&cp, &l, "%s %s", vendor, product); if (showclass) { (void)snappendf(&cp, &l, " ("); if (classp->name == NULL) (void)snappendf(&cp, &l, "class 0x%02x, subclass 0x%02x", class, subclass); else { if (subclassp == NULL || subclassp->name == NULL) (void)snappendf(&cp, &l, "%s, subclass 0x%02x", classp->name, subclass); else (void)snappendf(&cp, &l, "%s %s", subclassp->name, classp->name); } if ((interfacep == NULL) || (interfacep->name == NULL)) { if (interface != 0) (void)snappendf(&cp, &l, ", interface 0x%02x", interface); } else if (strncmp(interfacep->name, "", 1) != 0) (void)snappendf(&cp, &l, ", %s", interfacep->name); if (revision != 0) (void)snappendf(&cp, &l, ", revision 0x%02x", revision); (void)snappendf(&cp, &l, ")"); } } #ifdef _KERNEL void pci_aprint_devinfo_fancy(const struct pci_attach_args *pa, const char *naive, const char *known, int addrev) { char devinfo[256]; if (known) { aprint_normal(": %s", known); if (addrev) aprint_normal(" (rev. 0x%02x)", PCI_REVISION(pa->pa_class)); aprint_normal("\n"); } else { pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); } if (naive) aprint_naive(": %s\n", naive); else aprint_naive("\n"); } #endif /* * Print out most of the PCI configuration registers. Typically used * in a device attach routine like this: * * #ifdef MYDEV_DEBUG * printf("%s: ", device_xname(sc->sc_dev)); * pci_conf_print(pa->pa_pc, pa->pa_tag, NULL); * #endif */ #define i2o(i) ((i) * 4) #define o2i(o) ((o) / 4) #define onoff2(str, rval, bit, onstr, offstr) \ /*CONSTCOND*/ \ printf(" %s: %s\n", (str), ((rval) & (bit)) ? onstr : offstr); #define onoff(str, rval, bit) onoff2(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) { pci_class_t class; pci_subclass_t subclass; pci_interface_t interface; pci_revision_t revision; char vendor[PCI_VENDORSTR_LEN], product[PCI_PRODUCTSTR_LEN]; const struct pci_class *classp, *subclassp, *interfacep; const char *name; pcireg_t rval; unsigned int num; rval = regs[o2i(PCI_CLASS_REG)]; class = PCI_CLASS(rval); subclass = PCI_SUBCLASS(rval); interface = PCI_INTERFACE(rval); revision = PCI_REVISION(rval); rval = regs[o2i(PCI_ID_REG)]; name = pci_findvendor(vendor, sizeof(vendor), PCI_VENDOR(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(product, sizeof(product), PCI_VENDOR(rval), PCI_PRODUCT(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", rval, PCI_COMMAND_IO_ENABLE); onoff("Memory space accesses", rval, PCI_COMMAND_MEM_ENABLE); onoff("Bus mastering", rval, PCI_COMMAND_MASTER_ENABLE); onoff("Special cycles", rval, PCI_COMMAND_SPECIAL_ENABLE); onoff("MWI transactions", rval, PCI_COMMAND_INVALIDATE_ENABLE); onoff("Palette snooping", rval, PCI_COMMAND_PALETTE_ENABLE); onoff("Parity error checking", rval, PCI_COMMAND_PARITY_ENABLE); onoff("Address/data stepping", rval, PCI_COMMAND_STEPPING_ENABLE); onoff("System error (SERR)", rval, PCI_COMMAND_SERR_ENABLE); onoff("Fast back-to-back transactions", rval, PCI_COMMAND_BACKTOBACK_ENABLE); onoff("Interrupt disable", rval, PCI_COMMAND_INTERRUPT_DISABLE); printf(" Status register: 0x%04x\n", (rval >> 16) & 0xffff); onoff("Immediate Readiness", rval, PCI_STATUS_IMMD_READNESS); onoff2("Interrupt status", rval, PCI_STATUS_INT_STATUS, "active", "inactive"); onoff("Capability List support", rval, PCI_STATUS_CAPLIST_SUPPORT); onoff("66 MHz capable", rval, PCI_STATUS_66MHZ_SUPPORT); onoff("User Definable Features (UDF) support", rval, PCI_STATUS_UDF_SUPPORT); onoff("Fast back-to-back capable", rval, PCI_STATUS_BACKTOBACK_SUPPORT); onoff("Data parity error detected", rval, 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", PCIREG_SHIFTOUT(rval, PCI_STATUS_DEVSEL_MASK)); onoff("Slave signaled Target Abort", rval, PCI_STATUS_TARGET_TARGET_ABORT); onoff("Master received Target Abort", rval, PCI_STATUS_MASTER_TARGET_ABORT); onoff("Master received Master Abort", rval, PCI_STATUS_MASTER_ABORT); onoff("Asserted System Error (SERR)", rval, PCI_STATUS_SPECIAL_ERROR); onoff("Parity error detected", rval, PCI_STATUS_PARITY_DETECT); rval = regs[o2i(PCI_CLASS_REG)]; for (classp = pci_classes; classp->name != NULL; classp++) { if (class == classp->val) break; } /* * ECN: Change Root Complex Event Collector Class Code * Old RCEC has subclass 0x06. It's the same as IOMMU. Read the type * in PCIe extend capability to know whether it's RCEC or IOMMU. */ if ((class == PCI_CLASS_SYSTEM) && (subclass == PCI_SUBCLASS_SYSTEM_IOMMU)) { int pcie_capoff; pcireg_t reg; if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff)) { reg = regs[o2i(pcie_capoff + PCIE_XCAP)]; if (PCIE_XCAP_TYPE(reg) == PCIE_XCAP_TYPE_RC_EVNTC) subclass = PCI_SUBCLASS_SYSTEM_RCEC; } } subclassp = (classp->name != NULL) ? classp->subclasses : NULL; while (subclassp && subclassp->name != NULL) { if (subclass == subclassp->val) break; subclassp++; } interfacep = (subclassp && subclassp->name != NULL) ? subclassp->subclasses : NULL; while (interfacep && interfacep->name != NULL) { if (interface == interfacep->val) break; interfacep++; } if (classp->name != NULL) printf(" Class Name: %s (0x%02x)\n", classp->name, class); else printf(" Class ID: 0x%02x\n", class); 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)); if ((interfacep != NULL) && (interfacep->name != NULL) && (strncmp(interfacep->name, "", 1) != 0)) printf(" Interface Name: %s (0x%02x)\n", interfacep->name, interface); else printf(" Interface: 0x%02x\n", interface); printf(" Revision ID: 0x%02x\n", revision); 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)); num = PCI_CACHELINE(rval); printf(" Cache Line Size: %ubytes (0x%02x)\n", num * 4, num); } 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) { int width; pcireg_t rval, rval64h; bool ioen, memen; #ifdef _KERNEL pcireg_t mask, mask64h = 0; #endif rval = regs[o2i(PCI_COMMAND_STATUS_REG)]; ioen = rval & PCI_COMMAND_IO_ENABLE; memen = rval & PCI_COMMAND_MEM_ENABLE; 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 if (rval != 0 && memen) { int s; /* * 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); } 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))); if (!memen) printf(", disabled"); printf("\n"); #ifdef _KERNEL printf(" size: 0x%016llx\n", PCI_MAPREG_MEM64_SIZE( ((((long long) mask64h) << 32) | mask))); #endif break; case PCI_MAPREG_MEM_TYPE_32BIT: case PCI_MAPREG_MEM_TYPE_32BIT_1M: default: printf(" base: 0x%08x", PCI_MAPREG_MEM_ADDR(rval)); if (!memen) printf(", disabled"); printf("\n"); #ifdef _KERNEL printf(" size: 0x%08x\n", PCI_MAPREG_MEM_SIZE(mask)); #endif break; } } else { #ifdef _KERNEL if (ioen) printf("%d-bit ", mask & ~0x0000ffff ? 32 : 16); #endif printf("I/O\n"); printf(" base: 0x%08x", PCI_MAPREG_IO_ADDR(rval)); if (!ioen) printf(", disabled"); printf("\n"); #ifdef _KERNEL printf(" size: 0x%08x\n", PCI_MAPREG_IO_SIZE(mask)); #endif } 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 const char * pci_conf_print_agp_calcycle(uint8_t cal) { switch (cal) { case 0x0: return "4ms"; case 0x1: return "16ms"; case 0x2: return "64ms"; case 0x3: return "256ms"; case 0x7: return "Calibration Cycle Not Needed"; default: return "(reserved)"; } } static void pci_conf_print_agp_datarate(pcireg_t reg, bool isagp3) { if (isagp3) { /* AGP 3.0 */ if (reg & AGP_MODE_V3_RATE_4x) printf("x4"); if (reg & AGP_MODE_V3_RATE_8x) printf("x8"); } else { /* AGP 2.0 */ if (reg & AGP_MODE_V2_RATE_1x) printf("x1"); if (reg & AGP_MODE_V2_RATE_2x) printf("x2"); if (reg & AGP_MODE_V2_RATE_4x) printf("x4"); } printf("\n"); } static void pci_conf_print_agp_cap(const pcireg_t *regs, int capoff) { pcireg_t rval; bool isagp3; printf("\n AGP Capabilities Register\n"); rval = regs[o2i(capoff)]; printf(" Revision: %d.%d\n", PCI_CAP_AGP_MAJOR(rval), PCI_CAP_AGP_MINOR(rval)); rval = regs[o2i(capoff + PCI_AGP_STATUS)]; printf(" Status register: 0x%04x\n", rval); printf(" RQ: %u\n", PCIREG_SHIFTOUT(rval, AGP_MODE_RQ) + 1); printf(" ARQSZ: %u\n", PCIREG_SHIFTOUT(rval, AGP_MODE_ARQSZ)); printf(" CAL cycle: %s\n", pci_conf_print_agp_calcycle(PCIREG_SHIFTOUT(rval, AGP_MODE_CAL))); onoff("SBA", rval, AGP_MODE_SBA); onoff("htrans#", rval, AGP_MODE_HTRANS); onoff("Over 4G", rval, AGP_MODE_4G); onoff("Fast Write", rval, AGP_MODE_FW); onoff("AGP 3.0 Mode", rval, AGP_MODE_MODE_3); isagp3 = rval & AGP_MODE_MODE_3; printf(" Data Rate Support: "); pci_conf_print_agp_datarate(rval, isagp3); rval = regs[o2i(capoff + PCI_AGP_COMMAND)]; printf(" Command register: 0x%08x\n", rval); printf(" PRQ: %u\n", PCIREG_SHIFTOUT(rval, AGP_MODE_RQ) + 1); printf(" PARQSZ: %u\n", PCIREG_SHIFTOUT(rval, AGP_MODE_ARQSZ)); printf(" PCAL cycle: %s\n", pci_conf_print_agp_calcycle(PCIREG_SHIFTOUT(rval, AGP_MODE_CAL))); onoff("SBA", rval, AGP_MODE_SBA); onoff("AGP", rval, AGP_MODE_AGP); onoff("Over 4G", rval, AGP_MODE_4G); onoff("Fast Write", rval, AGP_MODE_FW); if (isagp3) { printf(" Data Rate Enable: "); /* * The Data Rate Enable bits are used only on 3.0 and the * Command register has no AGP_MODE_MODE_3 bit, so pass the * flag to print correctly. */ pci_conf_print_agp_datarate(rval, isagp3); } } static const char * pci_conf_print_pcipm_cap_aux(uint16_t caps) { switch ((caps >> 6) & 7) { case 0: return "self-powered"; case 1: return "55 mA"; case 2: return "100 mA"; case 3: return "160 mA"; case 4: return "220 mA"; case 5: return "270 mA"; case 6: return "320 mA"; case 7: default: return "375 mA"; } } static const char * pci_conf_print_pcipm_cap_pmrev(uint8_t val) { static const char unk[] = "unknown"; static const char *pmrev[8] = { unk, "1.0", "1.1", "1.2", unk, unk, unk, unk }; if (val > 7) return unk; return pmrev[val]; } static void pci_conf_print_pcipm_cap(const pcireg_t *regs, int capoff) { uint16_t caps, pmcsr; caps = regs[o2i(capoff)] >> PCI_PMCR_SHIFT; pmcsr = regs[o2i(capoff + PCI_PMCSR)]; printf("\n PCI Power Management Capabilities Register\n"); printf(" Capabilities register: 0x%04x\n", caps); printf(" Version: %s\n", pci_conf_print_pcipm_cap_pmrev(caps & PCI_PMCR_VERSION_MASK)); onoff("PME# clock", caps, PCI_PMCR_PME_CLOCK); onoff("Device specific initialization", caps, PCI_PMCR_DSI); printf(" 3.3V auxiliary current: %s\n", pci_conf_print_pcipm_cap_aux(caps)); onoff("D1 power management state support", caps, PCI_PMCR_D1SUPP); onoff("D2 power management state support", caps, PCI_PMCR_D2SUPP); onoff("PME# support D0", caps, PCI_PMCR_PME_D0); onoff("PME# support D1", caps, PCI_PMCR_PME_D1); onoff("PME# support D2", caps, PCI_PMCR_PME_D2); onoff("PME# support D3 hot", caps, PCI_PMCR_PME_D3HOT); onoff("PME# support D3 cold", caps, PCI_PMCR_PME_D3COLD); printf(" Control/status register: 0x%08x\n", pmcsr); printf(" Power state: D%d\n", pmcsr & PCI_PMCSR_STATE_MASK); onoff("PCI Express reserved", (pmcsr >> 2), 1); onoff("No soft reset", pmcsr, PCI_PMCSR_NO_SOFTRST); printf(" PME# assertion: %sabled\n", (pmcsr & PCI_PMCSR_PME_EN) ? "en" : "dis"); printf(" Data Select: %d\n", PCIREG_SHIFTOUT(pmcsr, PCI_PMCSR_DATASEL_MASK)); printf(" Data Scale: %d\n", PCIREG_SHIFTOUT(pmcsr, PCI_PMCSR_DATASCL_MASK)); onoff("PME# status", pmcsr, PCI_PMCSR_PME_STS); printf(" Bridge Support Extensions register: 0x%02x\n", (pmcsr >> 16) & 0xff); onoff("B2/B3 support", pmcsr, PCI_PMCSR_B2B3_SUPPORT); onoff("Bus Power/Clock Control Enable", pmcsr, PCI_PMCSR_BPCC_EN); printf(" Data register: 0x%02x\n", PCIREG_SHIFTOUT(pmcsr, PCI_PMCSR_DATA)); } /* XXX pci_conf_print_vpd_cap */ /* XXX pci_conf_print_slotid_cap */ static void pci_conf_print_msi_cap(const pcireg_t *regs, int capoff) { uint32_t ctl, mmc, mme; regs += o2i(capoff); ctl = *regs++; mmc = PCIREG_SHIFTOUT(ctl, PCI_MSI_CTL_MMC_MASK); mme = PCIREG_SHIFTOUT(ctl, PCI_MSI_CTL_MME_MASK); printf("\n PCI Message Signaled Interrupt\n"); printf(" Message Control register: 0x%04x\n", ctl >> 16); onoff("MSI Enabled", ctl, PCI_MSI_CTL_MSI_ENABLE); printf(" Multiple Message Capable: %s (%d vector%s)\n", mmc > 0 ? "yes" : "no", 1 << mmc, mmc > 0 ? "s" : ""); printf(" Multiple Message Enabled: %s (%d vector%s)\n", mme > 0 ? "on" : "off", 1 << mme, mme > 0 ? "s" : ""); onoff("64 Bit Address Capable", ctl, PCI_MSI_CTL_64BIT_ADDR); onoff("Per-Vector Masking Capable", ctl, PCI_MSI_CTL_PERVEC_MASK); onoff("Extended Message Data Capable", ctl, PCI_MSI_CTL_EXTMDATA_CAP); onoff("Extended Message Data Enable", ctl, PCI_MSI_CTL_EXTMDATA_EN); printf(" Message Address %sregister: 0x%08x\n", ctl & PCI_MSI_CTL_64BIT_ADDR ? "(lower) " : "", *regs++); if (ctl & PCI_MSI_CTL_64BIT_ADDR) { printf(" Message Address %sregister: 0x%08x\n", "(upper) ", *regs++); } printf(" Message Data register: "); if (ctl & PCI_MSI_CTL_EXTMDATA_CAP) printf("0x%08x\n", *regs); else printf("0x%04x\n", *regs & 0xffff); regs++; if (ctl & PCI_MSI_CTL_PERVEC_MASK) { printf(" Vector Mask register: 0x%08x\n", *regs++); printf(" Vector Pending register: 0x%08x\n", *regs++); } } /* XXX pci_conf_print_cpci_hostwap_cap */ /* * For both command register and status register. * The argument "idx" is index number (0 to 7). */ static int pcix_split_trans(unsigned int idx) { static int table[8] = { 1, 2, 3, 4, 8, 12, 16, 32 }; if (idx >= __arraycount(table)) return -1; return table[idx]; } static void pci_conf_print_pcix_cap_2ndbusmode(int num) { const char *maxfreq, *maxperiod; printf(" Mode: "); if (num <= 0x07) printf("PCI-X Mode 1\n"); else if (num <= 0x0b) printf("PCI-X 266 (Mode 2)\n"); else printf("PCI-X 533 (Mode 2)\n"); printf(" Error protection: %s\n", (num <= 3) ? "parity" : "ECC"); switch (num & 0x03) { default: case 0: maxfreq = "N/A"; maxperiod = "N/A"; break; case 1: maxfreq = "66MHz"; maxperiod = "15ns"; break; case 2: maxfreq = "100MHz"; maxperiod = "10ns"; break; case 3: maxfreq = "133MHz"; maxperiod = "7.5ns"; break; } printf(" Max Clock Freq: %s\n", maxfreq); printf(" Min Clock Period: %s\n", maxperiod); } static void pci_conf_print_pcix_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; int isbridge; int i; isbridge = (PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)]) & PCI_HDRTYPE_PPB) != 0 ? 1 : 0; printf("\n PCI-X %s Capabilities Register\n", isbridge ? "Bridge" : "Non-bridge"); reg = regs[o2i(capoff)]; if (isbridge != 0) { printf(" Secondary status register: 0x%04x\n", (reg & 0xffff0000) >> 16); onoff("64bit device", reg, PCIX_STATUS_64BIT); onoff("133MHz capable", reg, PCIX_STATUS_133); onoff("Split completion discarded", reg, PCIX_STATUS_SPLDISC); onoff("Unexpected split completion", reg, PCIX_STATUS_SPLUNEX); onoff("Split completion overrun", reg, PCIX_BRIDGE_ST_SPLOVRN); onoff("Split request delayed", reg, PCIX_BRIDGE_ST_SPLRQDL); pci_conf_print_pcix_cap_2ndbusmode( PCIREG_SHIFTOUT(reg, PCIX_BRIDGE_2NDST_CLKF)); printf(" Version: 0x%x\n", (reg & PCIX_BRIDGE_2NDST_VER_MASK) >> PCIX_BRIDGE_2NDST_VER_SHIFT); onoff("266MHz capable", reg, PCIX_BRIDGE_ST_266); onoff("533MHz capable", reg, PCIX_BRIDGE_ST_533); } else { printf(" Command register: 0x%04x\n", (reg & 0xffff0000) >> 16); onoff("Data Parity Error Recovery", reg, PCIX_CMD_PERR_RECOVER); onoff("Enable Relaxed Ordering", reg, PCIX_CMD_RELAXED_ORDER); printf(" Maximum Burst Read Count: %u\n", PCIX_CMD_BYTECNT(reg)); printf(" Maximum Split Transactions: %d\n", pcix_split_trans((reg & PCIX_CMD_SPLTRANS_MASK) >> PCIX_CMD_SPLTRANS_SHIFT)); } reg = regs[o2i(capoff+PCIX_STATUS)]; /* Or PCIX_BRIDGE_PRI_STATUS */ printf(" %sStatus register: 0x%08x\n", isbridge ? "Bridge " : "", reg); printf(" Function: %d\n", PCIX_STATUS_FN(reg)); printf(" Device: %d\n", PCIX_STATUS_DEV(reg)); printf(" Bus: %d\n", PCIX_STATUS_BUS(reg)); onoff("64bit device", reg, PCIX_STATUS_64BIT); onoff("133MHz capable", reg, PCIX_STATUS_133); onoff("Split completion discarded", reg, PCIX_STATUS_SPLDISC); onoff("Unexpected split completion", reg, PCIX_STATUS_SPLUNEX); if (isbridge != 0) { onoff("Split completion overrun", reg, PCIX_BRIDGE_ST_SPLOVRN); onoff("Split request delayed", reg, PCIX_BRIDGE_ST_SPLRQDL); } else { onoff2("Device Complexity", reg, PCIX_STATUS_DEVCPLX, "bridge device", "simple device"); printf(" Designed max memory read byte count: %d\n", 512 << ((reg & PCIX_STATUS_MAXB_MASK) >> PCIX_STATUS_MAXB_SHIFT)); printf(" Designed max outstanding split transaction: %d\n", pcix_split_trans((reg & PCIX_STATUS_MAXST_MASK) >> PCIX_STATUS_MAXST_SHIFT)); printf(" MAX cumulative Read Size: %u\n", 8 << ((reg & 0x1c000000) >> PCIX_STATUS_MAXRS_SHIFT)); onoff("Received split completion error", reg, PCIX_STATUS_SCERR); } onoff("266MHz capable", reg, PCIX_STATUS_266); onoff("533MHz capable", reg, PCIX_STATUS_533); if (isbridge == 0) return; /* Only for bridge */ for (i = 0; i < 2; i++) { reg = regs[o2i(capoff + PCIX_BRIDGE_UP_STCR + (4 * i))]; printf(" %s split transaction control register: 0x%08x\n", (i == 0) ? "Upstream" : "Downstream", reg); printf(" Capacity: %d\n", reg & PCIX_BRIDGE_STCAP); printf(" Commitment Limit: %d\n", (reg & PCIX_BRIDGE_STCLIM) >> PCIX_BRIDGE_STCLIM_SHIFT); } } /* pci_conf_print_ht_slave_cap */ /* pci_conf_print_ht_host_cap */ /* pci_conf_print_ht_switch_cap */ /* pci_conf_print_ht_intr_cap */ /* pci_conf_print_ht_revid_cap */ /* pci_conf_print_ht_unitid_cap */ /* pci_conf_print_ht_extcnf_cap */ /* pci_conf_print_ht_addrmap_cap */ /* pci_conf_print_ht_msimap_cap */ static void pci_conf_print_ht_msimap_cap(const pcireg_t *regs, int capoff) { pcireg_t val; uint32_t lo, hi; /* * Print the rest of the command register bits. Others are * printed in pci_conf_print_ht_cap(). */ val = regs[o2i(capoff + PCI_HT_CMD)]; onoff("Enable", val, PCI_HT_MSI_ENABLED); onoff("Fixed", val, PCI_HT_MSI_FIXED); lo = regs[o2i(capoff + PCI_HT_MSI_ADDR_LO)]; hi = regs[o2i(capoff + PCI_HT_MSI_ADDR_HI)]; printf(" Address Low register: 0x%08x\n", lo); printf(" Address high register: 0x%08x\n", hi); printf(" Address: 0x%016" PRIx64 "\n", (uint64_t)hi << 32 | (lo & PCI_HT_MSI_ADDR_LO_MASK)); } /* pci_conf_print_ht_droute_cap */ /* pci_conf_print_ht_vcset_cap */ /* pci_conf_print_ht_retry_cap */ /* pci_conf_print_ht_x86enc_cap */ /* pci_conf_print_ht_gen3_cap */ /* pci_conf_print_ht_fle_cap */ /* pci_conf_print_ht_pm_cap */ /* pci_conf_print_ht_hnc_cap */ static const struct ht_types { pcireg_t cap; const char *name; void (*printfunc)(const pcireg_t *, int); } ht_captab[] = { {PCI_HT_CAP_SLAVE, "Slave or Primary Interface", NULL }, {PCI_HT_CAP_HOST, "Host or Secondary Interface", NULL }, {PCI_HT_CAP_SWITCH, "Switch", NULL }, {PCI_HT_CAP_INTERRUPT, "Interrupt Discovery and Configuration", NULL}, {PCI_HT_CAP_REVID, "Revision ID", NULL }, {PCI_HT_CAP_UNITID_CLUMP, "UnitID Clumping", NULL }, {PCI_HT_CAP_EXTCNFSPACE, "Extended Configuration Space Access", NULL }, {PCI_HT_CAP_ADDRMAP, "Address Mapping", NULL }, {PCI_HT_CAP_MSIMAP, "MSI Mapping", pci_conf_print_ht_msimap_cap }, {PCI_HT_CAP_DIRECTROUTE, "Direct Route", NULL }, {PCI_HT_CAP_VCSET, "VCSet", NULL }, {PCI_HT_CAP_RETRYMODE, "Retry Mode", NULL }, {PCI_HT_CAP_X86ENCODE, "X86 Encoding", NULL }, {PCI_HT_CAP_GEN3, "Gen3", NULL }, {PCI_HT_CAP_FLE, "Function-Level Extension", NULL }, {PCI_HT_CAP_PM, "Power Management", NULL }, {PCI_HT_CAP_HIGHNODECNT, "High Node Count", NULL }, }; static void pci_conf_print_ht_cap(const pcireg_t *regs, int capoff) { pcireg_t val, foundcap; unsigned int off; val = regs[o2i(capoff + PCI_HT_CMD)]; printf("\n HyperTransport Capability Register at 0x%02x\n", capoff); printf(" Command register: 0x%04x\n", val >> 16); foundcap = PCI_HT_CAP(val); for (off = 0; off < __arraycount(ht_captab); off++) { if (ht_captab[off].cap == foundcap) break; } printf(" Capability Type: 0x%02x ", foundcap); if (off >= __arraycount(ht_captab)) { printf("(unknown)\n"); return; } printf("(%s)\n", ht_captab[off].name); if (ht_captab[off].printfunc != NULL) ht_captab[off].printfunc(regs, capoff); } static void pci_conf_print_vendspec_cap(const pcireg_t *regs, int capoff) { uint16_t caps; caps = regs[o2i(capoff)] >> PCI_VENDORSPECIFIC_SHIFT; printf("\n PCI Vendor Specific Capabilities Register\n"); printf(" Capabilities length: 0x%02x\n", caps & 0xff); } static void pci_conf_print_debugport_cap(const pcireg_t *regs, int capoff) { pcireg_t val; val = regs[o2i(capoff + PCI_DEBUG_BASER)]; printf("\n Debugport Capability Register\n"); printf(" Debug base Register: 0x%04x\n", val >> PCI_DEBUG_BASER_SHIFT); printf(" port offset: 0x%04x\n", (val & PCI_DEBUG_PORTOFF_MASK) >> PCI_DEBUG_PORTOFF_SHIFT); printf(" BAR number: %u\n", (val & PCI_DEBUG_BARNUM_MASK) >> PCI_DEBUG_BARNUM_SHIFT); } /* XXX pci_conf_print_cpci_rsrcctl_cap */ /* XXX pci_conf_print_hotplug_cap */ static void pci_conf_print_subsystem_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; reg = regs[o2i(capoff + PCI_CAP_SUBSYS_ID)]; printf("\n Subsystem ID Capability Register\n"); printf(" Subsystem ID: 0x%08x\n", reg); } /* XXX pci_conf_print_agp8_cap */ static void pci_conf_print_secure_cap(const pcireg_t *regs, int capoff) { pcireg_t reg, reg2, val; bool havemisc1; printf("\n Secure Capability Register\n"); reg = regs[o2i(capoff + PCI_SECURE_CAP)]; printf(" Capability Register: 0x%04x\n", reg >> 16); val = PCIREG_SHIFTOUT(reg, PCI_SECURE_CAP_TYPE); printf(" Capability block type: "); /* I know IOMMU Only */ if (val == PCI_SECURE_CAP_TYPE_IOMMU) printf("IOMMU\n"); else { printf("0x%x(unknown)\n", val); return; } val = PCIREG_SHIFTOUT(reg, PCI_SECURE_CAP_REV); printf(" Capability revision: 0x%02x ", val); if (val == PCI_SECURE_CAP_REV_IOMMU) printf("(IOMMU)\n"); else { printf("(unknown)\n"); return; } onoff("IOTLB support", reg, PCI_SECURE_CAP_IOTLBSUP); onoff("HyperTransport tunnel translation support", reg, PCI_SECURE_CAP_HTTUNNEL); onoff("Not present table entries cached", reg, PCI_SECURE_CAP_NPCACHE); onoff("IOMMU Extended Feature Register support", reg, PCI_SECURE_CAP_EFRSUP); onoff("IOMMU Miscellaneous Information Register 1", reg, PCI_SECURE_CAP_EXT); havemisc1 = reg & PCI_SECURE_CAP_EXT; reg = regs[o2i(capoff + PCI_SECURE_IOMMU_BAL)]; printf(" Base Address Low Register: 0x%08x\n", reg); onoff("Enable", reg, PCI_SECURE_IOMMU_BAL_EN); reg2 = regs[o2i(capoff + PCI_SECURE_IOMMU_BAH)]; printf(" Base Address High Register: 0x%08x\n", reg2); printf(" Base Address: 0x%016" PRIx64 "\n", ((uint64_t)reg2 << 32) | (reg & (PCI_SECURE_IOMMU_BAL_H | PCI_SECURE_IOMMU_BAL_L))); reg = regs[o2i(capoff + PCI_SECURE_IOMMU_RANGE)]; printf(" IOMMU Range Register: 0x%08x\n", reg); printf(" HyperTransport UnitID: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_RANGE_UNITID)); onoff("Range valid", reg, PCI_SECURE_IOMMU_RANGE_RNGVALID); printf(" Device range bus number: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_RANGE_BUSNUM)); printf(" First device: 0x%04x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_RANGE_FIRSTDEV)); printf(" Last device: 0x%04x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_RANGE_LASTDEV)); reg = regs[o2i(capoff + PCI_SECURE_IOMMU_MISC0)]; printf(" Miscellaneous Information Register 0: 0x%08x\n", reg); printf(" MSI Message number: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC0_MSINUM)); val = PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC0_GVASIZE); printf(" Guest Virtual Address size: "); if (val == PCI_SECURE_IOMMU_MISC0_GVASIZE_48B) printf("48bits\n"); else printf("0x%x(unknown)\n", val); val = PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC0_PASIZE); printf(" Physical Address size: %dbits\n", val); val = PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC0_VASIZE); printf(" Virtual Address size: %dbits\n", val); onoff("ATS response address range reserved", reg, PCI_SECURE_IOMMU_MISC0_ATSRESV); printf(" Peripheral Page Request MSI Message number: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC0_MISNPPR)); if (!havemisc1) return; reg = regs[o2i(capoff + PCI_SECURE_IOMMU_MISC1)]; printf(" Miscellaneous Information Register 1: 0x%08x\n", reg); printf(" MSI Message number (GA): 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_SECURE_IOMMU_MISC1_MSINUM)); } static void pci_print_pcie_L0s_latency(uint32_t val) { switch (val) { case 0x0: printf("Less than 64ns\n"); break; case 0x1: case 0x2: case 0x3: printf("%dns to less than %dns\n", 32 << val, 32 << (val + 1)); break; case 0x4: printf("512ns to less than 1us\n"); break; case 0x5: printf("1us to less than 2us\n"); break; case 0x6: printf("2us - 4us\n"); break; case 0x7: printf("More than 4us\n"); break; } } static void pci_print_pcie_L1_latency(uint32_t val) { switch (val) { case 0x0: printf("Less than 1us\n"); break; case 0x6: printf("32us - 64us\n"); break; case 0x7: printf("More than 64us\n"); break; default: printf("%dus to less than %dus\n", 1 << (val - 1), 1 << val); break; } } static void pci_print_pcie_compl_timeout(uint32_t val) { switch (val) { case 0x0: printf("50us to 50ms\n"); break; case 0x5: printf("16ms to 55ms\n"); break; case 0x6: printf("65ms to 210ms\n"); break; case 0x9: printf("260ms to 900ms\n"); break; case 0xa: printf("1s to 3.5s\n"); break; default: printf("unknown %u value\n", val); break; } } static const char * const pcie_linkspeeds[] = { "2.5", "5.0", "8.0", "16.0", "32.0" }; /* * Print link speed. This function is used for the following register bits: * Maximum Link Speed in LCAP * Current Link Speed in LCSR * Target Link Speed in LCSR2 * All of above bitfield's values start from 1. * For LCSR2, 0 is allowed for a device which supports 2.5GT/s only (and * this check also works for devices which compliant to versions of the base * specification prior to 3.0. */ static void pci_print_pcie_linkspeed(int regnum, pcireg_t val) { if ((regnum == PCIE_LCSR2) && (val == 0)) printf("2.5GT/s\n"); else if ((val < 1) || (val > __arraycount(pcie_linkspeeds))) printf("unknown value (%u)\n", val); else printf("%sGT/s\n", pcie_linkspeeds[val - 1]); } /* * Print link speed "vector". * This function is used for the following register bits: * Supported Link Speeds Vector in LCAP2 * Lower SKP OS Generation Supported Speed Vector in LCAP2 * Lower SKP OS Reception Supported Speed Vector in LCAP2 * Enable Lower SKP OS Generation Vector in LCTL3 * All of above bitfield's values start from 0. */ static void pci_print_pcie_linkspeedvector(pcireg_t val) { unsigned int i; /* Start from 0 */ for (i = 0; i < 16; i++) if (((val >> i) & 0x01) != 0) { if (i >= __arraycount(pcie_linkspeeds)) printf(" unknown vector (0x%x)", 1 << i); else printf(" %sGT/s", pcie_linkspeeds[i]); } } static void pci_print_pcie_link_deemphasis(pcireg_t val) { switch (val) { case 0: printf("-6dB"); break; case 1: printf("-3.5dB"); break; default: printf("(reserved value)"); } } static const struct _pcie_link_preset_preshoot_deemphasis { const char *preshoot; const char *deemphasis; } pcie_link_preset_preshoot_deemphasis[] = { { "0.0", "-6.0+-1.5" }, /* P0 */ { "0.0", "-3.5+-1" }, /* P1 */ { "0.0", "-4.4+-1.5" }, /* P2 */ { "0.0", "-2.5+-1" }, /* P3 */ { "0.0", "0.0" }, /* P4 */ { "1.9+-1", "0.0" }, /* P5 */ { "2.5+-1", "0.0" }, /* P6 */ { "3.5+-1", "-6.0+-1.5" }, /* P7 */ { "3.5+-1", "-3.5+-1" }, /* P8 */ { "3.5+-1", "0.0" }, /* P9 */ { "0.0", NULL } /* P10 */ }; static void pci_print_pcie_link_preset_preshoot_deemphasis(pcireg_t val) { const char *deemphasis; if (val >= __arraycount(pcie_link_preset_preshoot_deemphasis)) { /* * This may be printed because the default value of some * register fields is 0b1111. */ printf("reserved value (0x%x)", val); return; } printf("Preshoot %sdB", pcie_link_preset_preshoot_deemphasis[val].preshoot); deemphasis = pcie_link_preset_preshoot_deemphasis[val].deemphasis; if (deemphasis != NULL) printf(", De-emphasis %sdB", deemphasis); } static void pci_conf_print_pcie_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; /* for each register */ pcireg_t val; /* for each bitfield */ bool check_slot = false; unsigned int pcie_devtype; bool check_upstreamport = false; unsigned int pciever; unsigned int i; printf("\n PCI Express Capabilities Register\n"); /* Capability Register */ reg = regs[o2i(capoff)]; printf(" Capability register: 0x%04x\n", reg >> 16); pciever = (unsigned int)(PCIE_XCAP_VER(reg)); printf(" Capability version: %u\n", pciever); printf(" Device type: "); pcie_devtype = PCIE_XCAP_TYPE(reg); switch (pcie_devtype) { case PCIE_XCAP_TYPE_PCIE_DEV: /* 0x0 */ printf("PCI Express Endpoint device\n"); check_upstreamport = true; break; case PCIE_XCAP_TYPE_PCI_DEV: /* 0x1 */ printf("Legacy PCI Express Endpoint device\n"); check_upstreamport = true; break; case PCIE_XCAP_TYPE_RP: /* 0x4 */ printf("Root Port of PCI Express Root Complex\n"); check_slot = true; break; case PCIE_XCAP_TYPE_UP: /* 0x5 */ printf("Upstream Port of PCI Express Switch\n"); check_upstreamport = true; break; case PCIE_XCAP_TYPE_DOWN: /* 0x6 */ printf("Downstream Port of PCI Express Switch\n"); check_slot = true; break; case PCIE_XCAP_TYPE_PCIE2PCI: /* 0x7 */ printf("PCI Express to PCI/PCI-X Bridge\n"); check_upstreamport = true; break; case PCIE_XCAP_TYPE_PCI2PCIE: /* 0x8 */ printf("PCI/PCI-X to PCI Express Bridge\n"); /* Upstream port is not PCIe */ check_slot = true; break; case PCIE_XCAP_TYPE_RCIEP: /* 0x9 */ printf("Root Complex Integrated Endpoint\n"); break; case PCIE_XCAP_TYPE_RC_EVNTC: /* 0xa */ printf("Root Complex Event Collector\n"); break; default: printf("unknown\n"); break; } onoff("Slot implemented", reg, PCIE_XCAP_SI); printf(" Interrupt Message Number: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCIE_XCAP_IRQ)); /* Device Capability Register */ reg = regs[o2i(capoff + PCIE_DCAP)]; printf(" Device Capabilities Register: 0x%08x\n", reg); printf(" Max Payload Size Supported: %u bytes max\n", 128 << (unsigned int)(reg & PCIE_DCAP_MAX_PAYLOAD)); printf(" Phantom Functions Supported: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCAP_PHANTOM_FUNCS)) { case 0x0: printf("not available\n"); break; case 0x1: printf("MSB\n"); break; case 0x2: printf("two MSB\n"); break; case 0x3: printf("All three bits\n"); break; } printf(" Extended Tag Field Supported: %dbit\n", (reg & PCIE_DCAP_EXT_TAG_FIELD) == 0 ? 5 : 8); printf(" Endpoint L0 Acceptable Latency: "); pci_print_pcie_L0s_latency(PCIREG_SHIFTOUT(reg, PCIE_DCAP_L0S_LATENCY)); printf(" Endpoint L1 Acceptable Latency: "); pci_print_pcie_L1_latency(PCIREG_SHIFTOUT(reg, PCIE_DCAP_L1_LATENCY)); onoff("Attention Button Present", reg, PCIE_DCAP_ATTN_BUTTON); onoff("Attention Indicator Present", reg, PCIE_DCAP_ATTN_IND); onoff("Power Indicator Present", reg, PCIE_DCAP_PWR_IND); onoff("Role-Based Error Report", reg, PCIE_DCAP_ROLE_ERR_RPT); if (check_upstreamport) { printf(" Captured Slot Power Limit: "); pci_conf_print_pcie_power( PCIREG_SHIFTOUT(reg, PCIE_DCAP_SLOT_PWR_LIM_VAL), PCIREG_SHIFTOUT(reg, PCIE_DCAP_SLOT_PWR_LIM_SCALE)); } onoff("Function-Level Reset Capability", reg, PCIE_DCAP_FLR); /* Device Control Register */ reg = regs[o2i(capoff + PCIE_DCSR)]; printf(" Device Control Register: 0x%04x\n", reg & 0xffff); onoff("Correctable Error Reporting Enable", reg, PCIE_DCSR_ENA_COR_ERR); onoff("Non Fatal Error Reporting Enable", reg, PCIE_DCSR_ENA_NFER); onoff("Fatal Error Reporting Enable", reg, PCIE_DCSR_ENA_FER); onoff("Unsupported Request Reporting Enable", reg, PCIE_DCSR_ENA_URR); onoff("Enable Relaxed Ordering", reg, PCIE_DCSR_ENA_RELAX_ORD); printf(" Max Payload Size: %d byte\n", 128 << PCIREG_SHIFTOUT(reg, PCIE_DCSR_MAX_PAYLOAD)); onoff("Extended Tag Field Enable", reg, PCIE_DCSR_EXT_TAG_FIELD); onoff("Phantom Functions Enable", reg, PCIE_DCSR_PHANTOM_FUNCS); onoff("Aux Power PM Enable", reg, PCIE_DCSR_AUX_POWER_PM); onoff("Enable No Snoop", reg, PCIE_DCSR_ENA_NO_SNOOP); printf(" Max Read Request Size: %d byte\n", 128 << PCIREG_SHIFTOUT(reg, PCIE_DCSR_MAX_READ_REQ)); if (pcie_devtype == PCIE_XCAP_TYPE_PCIE2PCI) onoff("Bridge Config Retry Enable", reg, PCIE_DCSR_BRDG_CFG_RETRY); /* Device Status Register */ reg = regs[o2i(capoff + PCIE_DCSR)]; printf(" Device Status Register: 0x%04x\n", reg >> 16); onoff("Correctable Error Detected", reg, PCIE_DCSR_CED); onoff("Non Fatal Error Detected", reg, PCIE_DCSR_NFED); onoff("Fatal Error Detected", reg, PCIE_DCSR_FED); onoff("Unsupported Request Detected", reg, PCIE_DCSR_URD); onoff("Aux Power Detected", reg, PCIE_DCSR_AUX_PWR); onoff("Transaction Pending", reg, PCIE_DCSR_TRANSACTION_PND); onoff("Emergency Power Reduction Detected", reg, PCIE_DCSR_EMGPWRREDD); if (PCIE_HAS_LINKREGS(pcie_devtype)) { /* Link Capability Register */ reg = regs[o2i(capoff + PCIE_LCAP)]; printf(" Link Capabilities Register: 0x%08x\n", reg); printf(" Maximum Link Speed: "); pci_print_pcie_linkspeed(PCIE_LCAP, reg & PCIE_LCAP_MAX_SPEED); printf(" Maximum Link Width: x%u lanes\n", PCIREG_SHIFTOUT(reg, PCIE_LCAP_MAX_WIDTH)); printf(" Active State PM Support: "); switch (PCIREG_SHIFTOUT(reg, PCIE_LCAP_ASPM)) { case 0x0: printf("No ASPM support\n"); break; case 0x1: printf("L0s supported\n"); break; case 0x2: printf("L1 supported\n"); break; case 0x3: printf("L0s and L1 supported\n"); break; } printf(" L0 Exit Latency: "); pci_print_pcie_L0s_latency(PCIREG_SHIFTOUT(reg,PCIE_LCAP_L0S_EXIT)); printf(" L1 Exit Latency: "); pci_print_pcie_L1_latency(PCIREG_SHIFTOUT(reg, PCIE_LCAP_L1_EXIT)); printf(" Port Number: %u\n", PCIREG_SHIFTOUT(reg, PCIE_LCAP_PORT)); onoff("Clock Power Management", reg, PCIE_LCAP_CLOCK_PM); onoff("Surprise Down Error Report", reg, PCIE_LCAP_SURPRISE_DOWN); onoff("Data Link Layer Link Active", reg, PCIE_LCAP_DL_ACTIVE); onoff("Link BW Notification Capable", reg, PCIE_LCAP_LINK_BW_NOTIFY); onoff("ASPM Optionally Compliance", reg, PCIE_LCAP_ASPM_COMPLIANCE); /* Link Control Register */ reg = regs[o2i(capoff + PCIE_LCSR)]; printf(" Link Control Register: 0x%04x\n", reg & 0xffff); printf(" Active State PM Control: "); switch (reg & (PCIE_LCSR_ASPM_L1 | PCIE_LCSR_ASPM_L0S)) { case 0: printf("disabled\n"); break; case 1: printf("L0s Entry Enabled\n"); break; case 2: printf("L1 Entry Enabled\n"); break; case 3: printf("L0s and L1 Entry Enabled\n"); break; } onoff2("Read Completion Boundary Control", reg, PCIE_LCSR_RCB, "128bytes", "64bytes"); onoff("Link Disable", reg, PCIE_LCSR_LINK_DIS); onoff("Retrain Link", reg, PCIE_LCSR_RETRAIN); onoff("Common Clock Configuration", reg, PCIE_LCSR_COMCLKCFG); onoff("Extended Synch", reg, PCIE_LCSR_EXTNDSYNC); onoff("Enable Clock Power Management", reg, PCIE_LCSR_ENCLKPM); onoff("Hardware Autonomous Width Disable", reg,PCIE_LCSR_HAWD); onoff("Link Bandwidth Management Interrupt Enable", reg, PCIE_LCSR_LBMIE); onoff("Link Autonomous Bandwidth Interrupt Enable", reg, PCIE_LCSR_LABIE); printf(" DRS Signaling Control: "); switch (PCIREG_SHIFTOUT(reg, PCIE_LCSR_DRSSGNL)) { case 0: printf("not reported\n"); break; case 1: printf("Interrupt Enabled\n"); break; case 2: printf("DRS to FRS Signaling Enabled\n"); break; default: printf("reserved\n"); break; } /* Link Status Register */ reg = regs[o2i(capoff + PCIE_LCSR)]; printf(" Link Status Register: 0x%04x\n", reg >> 16); printf(" Negotiated Link Speed: "); pci_print_pcie_linkspeed(PCIE_LCSR, PCIREG_SHIFTOUT(reg, PCIE_LCSR_LINKSPEED)); printf(" Negotiated Link Width: x%u lanes\n", PCIREG_SHIFTOUT(reg, PCIE_LCSR_NLW)); onoff("Training Error", reg, PCIE_LCSR_LINKTRAIN_ERR); onoff("Link Training", reg, PCIE_LCSR_LINKTRAIN); onoff("Slot Clock Configuration", reg, PCIE_LCSR_SLOTCLKCFG); onoff("Data Link Layer Link Active", reg, PCIE_LCSR_DLACTIVE); onoff("Link Bandwidth Management Status", reg, PCIE_LCSR_LINK_BW_MGMT); onoff("Link Autonomous Bandwidth Status", reg, PCIE_LCSR_LINK_AUTO_BW); } if (check_slot == true) { pcireg_t slcap; /* Slot Capability Register */ slcap = reg = regs[o2i(capoff + PCIE_SLCAP)]; printf(" Slot Capability Register: 0x%08x\n", reg); onoff("Attention Button Present", reg, PCIE_SLCAP_ABP); onoff("Power Controller Present", reg, PCIE_SLCAP_PCP); onoff("MRL Sensor Present", reg, PCIE_SLCAP_MSP); onoff("Attention Indicator Present", reg, PCIE_SLCAP_AIP); onoff("Power Indicator Present", reg, PCIE_SLCAP_PIP); onoff("Hot-Plug Surprise", reg, PCIE_SLCAP_HPS); onoff("Hot-Plug Capable", reg, PCIE_SLCAP_HPC); printf(" Slot Power Limit Value: "); pci_conf_print_pcie_power(PCIREG_SHIFTOUT(reg, PCIE_SLCAP_SPLV), PCIREG_SHIFTOUT(reg, PCIE_SLCAP_SPLS)); onoff("Electromechanical Interlock Present", reg, PCIE_SLCAP_EIP); onoff("No Command Completed Support", reg, PCIE_SLCAP_NCCS); printf(" Physical Slot Number: %d\n", (unsigned int)(reg & PCIE_SLCAP_PSN) >> 19); /* Slot Control Register */ reg = regs[o2i(capoff + PCIE_SLCSR)]; printf(" Slot Control Register: 0x%04x\n", reg & 0xffff); onoff("Attention Button Pressed Enabled", reg, PCIE_SLCSR_ABE); onoff("Power Fault Detected Enabled", reg, PCIE_SLCSR_PFE); onoff("MRL Sensor Changed Enabled", reg, PCIE_SLCSR_MSE); onoff("Presence Detect Changed Enabled", reg, PCIE_SLCSR_PDE); onoff("Command Completed Interrupt Enabled", reg, PCIE_SLCSR_CCE); onoff("Hot-Plug Interrupt Enabled", reg, PCIE_SLCSR_HPE); /* * For Attention Indicator Control and Power Indicator Control, * it's allowed to be a read only value 0 if corresponding * capability register bit is 0. */ if (slcap & PCIE_SLCAP_AIP) { printf(" Attention Indicator Control: "); switch ((reg & PCIE_SLCSR_AIC) >> 6) { case 0x0: printf("reserved\n"); break; case PCIE_SLCSR_IND_ON: printf("on\n"); break; case PCIE_SLCSR_IND_BLINK: printf("blink\n"); break; case PCIE_SLCSR_IND_OFF: printf("off\n"); break; } } if (slcap & PCIE_SLCAP_PIP) { printf(" Power Indicator Control: "); switch ((reg & PCIE_SLCSR_PIC) >> 8) { case 0x0: printf("reserved\n"); break; case PCIE_SLCSR_IND_ON: printf("on\n"); break; case PCIE_SLCSR_IND_BLINK: printf("blink\n"); break; case PCIE_SLCSR_IND_OFF: printf("off\n"); break; } } printf(" Power Controller Control: Power %s\n", reg & PCIE_SLCSR_PCC ? "off" : "on"); onoff("Electromechanical Interlock Control", reg, PCIE_SLCSR_EIC); onoff("Data Link Layer State Changed Enable", reg, PCIE_SLCSR_DLLSCE); onoff("Auto Slot Power Limit Disable", reg, PCIE_SLCSR_AUTOSPLDIS); /* Slot Status Register */ printf(" Slot Status Register: 0x%04x\n", reg >> 16); onoff("Attention Button Pressed", reg, PCIE_SLCSR_ABP); onoff("Power Fault Detected", reg, PCIE_SLCSR_PFD); onoff("MRL Sensor Changed", reg, PCIE_SLCSR_MSC); onoff("Presence Detect Changed", reg, PCIE_SLCSR_PDC); onoff("Command Completed", reg, PCIE_SLCSR_CC); onoff("MRL Open", reg, PCIE_SLCSR_MS); onoff("Card Present in slot", reg, PCIE_SLCSR_PDS); onoff("Electromechanical Interlock engaged", reg, PCIE_SLCSR_EIS); onoff("Data Link Layer State Changed", reg, PCIE_SLCSR_LACS); } if (PCIE_HAS_ROOTREGS(pcie_devtype)) { /* Root Control Register */ reg = regs[o2i(capoff + PCIE_RCR)]; printf(" Root Control Register: 0x%04x\n", reg & 0xffff); onoff("SERR on Correctable Error Enable", reg, PCIE_RCR_SERR_CER); onoff("SERR on Non-Fatal Error Enable", reg, PCIE_RCR_SERR_NFER); onoff("SERR on Fatal Error Enable", reg, PCIE_RCR_SERR_FER); onoff("PME Interrupt Enable", reg, PCIE_RCR_PME_IE); onoff("CRS Software Visibility Enable", reg, PCIE_RCR_CRS_SVE); /* Root Capability Register */ printf(" Root Capability Register: 0x%04x\n", reg >> 16); onoff("CRS Software Visibility", reg, PCIE_RCR_CRS_SV); /* Root Status Register */ reg = regs[o2i(capoff + PCIE_RSR)]; printf(" Root Status Register: 0x%08x\n", reg); printf(" PME Requester ID: 0x%04x\n", (unsigned int)(reg & PCIE_RSR_PME_REQESTER)); onoff("PME was asserted", reg, PCIE_RSR_PME_STAT); onoff("another PME is pending", reg, PCIE_RSR_PME_PEND); } /* PCIe DW9 to DW14 is for PCIe 2.0 and newer */ if (pciever < 2) return; /* Device Capabilities 2 */ reg = regs[o2i(capoff + PCIE_DCAP2)]; printf(" Device Capabilities 2: 0x%08x\n", reg); printf(" Completion Timeout Ranges Supported: "); val = reg & PCIE_DCAP2_COMPT_RANGE; switch (val) { case 0: printf("not supported\n"); break; default: for (i = 0; i <= 3; i++) { if (((val >> i) & 0x01) != 0) printf("%c", 'A' + i); } printf("\n"); } onoff("Completion Timeout Disable Supported", reg, PCIE_DCAP2_COMPT_DIS); onoff("ARI Forwarding Supported", reg, PCIE_DCAP2_ARI_FWD); onoff("AtomicOp Routing Supported", reg, PCIE_DCAP2_ATOM_ROUT); onoff("32bit AtomicOp Completer Supported", reg, PCIE_DCAP2_32ATOM); onoff("64bit AtomicOp Completer Supported", reg, PCIE_DCAP2_64ATOM); onoff("128-bit CAS Completer Supported", reg, PCIE_DCAP2_128CAS); onoff("No RO-enabled PR-PR passing", reg, PCIE_DCAP2_NO_ROPR_PASS); onoff("LTR Mechanism Supported", reg, PCIE_DCAP2_LTR_MEC); printf(" TPH Completer Supported: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCAP2_TPH_COMP)) { case 0: printf("Not supported\n"); break; case 1: printf("TPH\n"); break; case 3: printf("TPH and Extended TPH\n"); break; default: printf("(reserved value)\n"); break; } printf(" LN System CLS: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCAP2_LNSYSCLS)) { case 0x0: printf("Not supported or not in effect\n"); break; case 0x1: printf("64byte cachelines in effect\n"); break; case 0x2: printf("128byte cachelines in effect\n"); break; case 0x3: printf("Reserved\n"); break; } onoff("10-bit Tag Completer Supported", reg, PCIE_DCAP2_TBT_COMP); onoff("10-bit Tag Requester Supported", reg, PCIE_DCAP2_TBT_REQ); printf(" OBFF Supported: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCAP2_OBFF)) { case 0x0: printf("Not supported\n"); break; case 0x1: printf("Message only\n"); break; case 0x2: printf("WAKE# only\n"); break; case 0x3: printf("Both\n"); break; } onoff("Extended Fmt Field Supported", reg, PCIE_DCAP2_EXTFMT_FLD); onoff("End-End TLP Prefix Supported", reg, PCIE_DCAP2_EETLP_PREF); val = PCIREG_SHIFTOUT(reg, PCIE_DCAP2_MAX_EETLP); printf(" Max End-End TLP Prefixes: %u\n", (val == 0) ? 4 : val); printf(" Emergency Power Reduction Supported: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCAP2_EMGPWRRED)) { case 0x0: printf("Not supported\n"); break; case 0x1: printf("Device Specific mechanism\n"); break; case 0x2: printf("Form Factor spec or Device Specific mechanism\n"); break; case 0x3: printf("Reserved\n"); break; } onoff("Emergency Power Reduction Initialization Required", reg, PCIE_DCAP2_EMGPWRRED_INI); onoff("FRS Supported", reg, PCIE_DCAP2_FRS); /* Device Control 2 */ reg = regs[o2i(capoff + PCIE_DCSR2)]; printf(" Device Control 2: 0x%04x\n", reg & 0xffff); printf(" Completion Timeout Value: "); pci_print_pcie_compl_timeout(reg & PCIE_DCSR2_COMPT_VAL); onoff("Completion Timeout Disabled", reg, PCIE_DCSR2_COMPT_DIS); onoff("ARI Forwarding Enabled", reg, PCIE_DCSR2_ARI_FWD); onoff("AtomicOp Requester Enabled", reg, PCIE_DCSR2_ATOM_REQ); onoff("AtomicOp Egress Blocking", reg, PCIE_DCSR2_ATOM_EBLK); onoff("IDO Request Enabled", reg, PCIE_DCSR2_IDO_REQ); onoff("IDO Completion Enabled", reg, PCIE_DCSR2_IDO_COMP); onoff("LTR Mechanism Enabled", reg, PCIE_DCSR2_LTR_MEC); onoff("Emergency Power Reduction Request", reg, PCIE_DCSR2_EMGPWRRED_REQ); onoff("10-bit Tag Requester Enabled", reg, PCIE_DCSR2_TBT_REQ); printf(" OBFF: "); switch (PCIREG_SHIFTOUT(reg, PCIE_DCSR2_OBFF_EN)) { case 0x0: printf("Disabled\n"); break; case 0x1: printf("Enabled with Message Signaling Variation A\n"); break; case 0x2: printf("Enabled with Message Signaling Variation B\n"); break; case 0x3: printf("Enabled using WAKE# signaling\n"); break; } onoff("End-End TLP Prefix Blocking on", reg, PCIE_DCSR2_EETLP); if (PCIE_HAS_LINKREGS(pcie_devtype)) { bool drs_supported = false; /* Link Capability 2 */ reg = regs[o2i(capoff + PCIE_LCAP2)]; /* If the vector is 0, LCAP2 is not implemented */ if ((reg & PCIE_LCAP2_SUP_LNKSV) != 0) { printf(" Link Capabilities 2: 0x%08x\n", reg); printf(" Supported Link Speeds Vector:"); pci_print_pcie_linkspeedvector( PCIREG_SHIFTOUT(reg, PCIE_LCAP2_SUP_LNKSV)); printf("\n"); onoff("Crosslink Supported", reg, PCIE_LCAP2_CROSSLNK); printf(" " "Lower SKP OS Generation Supported Speed Vector:"); pci_print_pcie_linkspeedvector( PCIREG_SHIFTOUT(reg, PCIE_LCAP2_LOWSKPOS_GENSUPPSV)); printf("\n"); printf(" " "Lower SKP OS Reception Supported Speed Vector:"); pci_print_pcie_linkspeedvector( PCIREG_SHIFTOUT(reg, PCIE_LCAP2_LOWSKPOS_RECSUPPSV)); printf("\n"); onoff("Retimer Presence Detect Supported", reg, PCIE_LCAP2_RETIMERPD); onoff("DRS Supported", reg, PCIE_LCAP2_DRS); drs_supported = (reg & PCIE_LCAP2_DRS) ? true : false; } /* Link Control 2 */ reg = regs[o2i(capoff + PCIE_LCSR2)]; /* If the vector is 0, LCAP2 is not implemented */ printf(" Link Control 2: 0x%04x\n", reg & 0xffff); printf(" Target Link Speed: "); pci_print_pcie_linkspeed(PCIE_LCSR2, PCIREG_SHIFTOUT(reg, PCIE_LCSR2_TGT_LSPEED)); onoff("Enter Compliance Enabled", reg, PCIE_LCSR2_ENT_COMPL); onoff("HW Autonomous Speed Disabled", reg, PCIE_LCSR2_HW_AS_DIS); printf(" Selectable De-emphasis: "); pci_print_pcie_link_deemphasis( PCIREG_SHIFTOUT(reg, PCIE_LCSR2_SEL_DEEMP)); printf("\n"); printf(" Transmit Margin: %u\n", PCIREG_SHIFTOUT(reg, PCIE_LCSR2_TX_MARGIN)); onoff("Enter Modified Compliance", reg, PCIE_LCSR2_EN_MCOMP); onoff("Compliance SOS", reg, PCIE_LCSR2_COMP_SOS); printf(" Compliance Preset/De-emphasis: "); pci_print_pcie_link_preset_preshoot_deemphasis( PCIREG_SHIFTOUT(reg, PCIE_LCSR2_COMP_DEEMP)); printf("\n"); /* Link Status 2 */ printf(" Link Status 2: 0x%04x\n", (reg >> 16) & 0xffff); printf(" Current De-emphasis Level: "); pci_print_pcie_link_deemphasis( PCIREG_SHIFTOUT(reg, PCIE_LCSR2_DEEMP_LVL)); printf("\n"); onoff("Equalization Complete", reg, PCIE_LCSR2_EQ_COMPL); onoff("Equalization Phase 1 Successful", reg, PCIE_LCSR2_EQP1_SUC); onoff("Equalization Phase 2 Successful", reg, PCIE_LCSR2_EQP2_SUC); onoff("Equalization Phase 3 Successful", reg, PCIE_LCSR2_EQP3_SUC); onoff("Link Equalization Request", reg, PCIE_LCSR2_LNKEQ_REQ); onoff("Retimer Presence Detected", reg, PCIE_LCSR2_RETIMERPD); if (drs_supported) { printf(" Downstream Component Presence: "); switch (PCIREG_SHIFTOUT(reg, PCIE_LCSR2_DSCOMPN)) { case PCIE_DSCOMPN_DOWN_NOTDETERM: printf("Link Down - Presence Not" " Determined\n"); break; case PCIE_DSCOMPN_DOWN_NOTPRES: printf("Link Down - Component Not Present\n"); break; case PCIE_DSCOMPN_DOWN_PRES: printf("Link Down - Component Present\n"); break; case PCIE_DSCOMPN_UP_PRES: printf("Link Up - Component Present\n"); break; case PCIE_DSCOMPN_UP_PRES_DRS: printf("Link Up - Component Present and DRS" " received\n"); break; default: printf("reserved\n"); break; } onoff("DRS Message Received", reg, PCIE_LCSR2_DRSRCV); } } /* Slot Capability 2 */ /* Slot Control 2 */ /* Slot Status 2 */ } static void pci_conf_print_msix_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; printf("\n MSI-X Capability Register\n"); reg = regs[o2i(capoff + PCI_MSIX_CTL)]; printf(" Message Control register: 0x%04x\n", (reg >> 16) & 0xff); printf(" Table Size: %d\n", PCI_MSIX_CTL_TBLSIZE(reg)); onoff("Function Mask", reg, PCI_MSIX_CTL_FUNCMASK); onoff("MSI-X Enable", reg, PCI_MSIX_CTL_ENABLE); reg = regs[o2i(capoff + PCI_MSIX_TBLOFFSET)]; printf(" Table offset register: 0x%08x\n", reg); printf(" Table offset: 0x%08x\n", (pcireg_t)(reg & PCI_MSIX_TBLOFFSET_MASK)); printf(" BIR: 0x%x\n", (pcireg_t)(reg & PCI_MSIX_TBLBIR_MASK)); reg = regs[o2i(capoff + PCI_MSIX_PBAOFFSET)]; printf(" Pending bit array register: 0x%08x\n", reg); printf(" Pending bit array offset: 0x%08x\n", (pcireg_t)(reg & PCI_MSIX_PBAOFFSET_MASK)); printf(" BIR: 0x%x\n", (pcireg_t)(reg & PCI_MSIX_PBABIR_MASK)); } static void pci_conf_print_sata_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; printf("\n Serial ATA Capability Register\n"); reg = regs[o2i(capoff + PCI_SATA_REV)]; printf(" Revision register: 0x%04x\n", (reg >> 16) & 0xff); printf(" Revision: %u.%u\n", PCIREG_SHIFTOUT(reg, PCI_SATA_REV_MAJOR), PCIREG_SHIFTOUT(reg, PCI_SATA_REV_MINOR)); reg = regs[o2i(capoff + PCI_SATA_BAR)]; printf(" BAR Register: 0x%08x\n", reg); printf(" Register location: "); if ((reg & PCI_SATA_BAR_SPEC) == PCI_SATA_BAR_INCONF) printf("in config space\n"); else { printf("BAR %d\n", (int)PCI_SATA_BAR_NUM(reg)); printf(" BAR offset: 0x%08x\n", PCIREG_SHIFTOUT(reg, PCI_SATA_BAR_OFFSET) * 4); } } static void pci_conf_print_pciaf_cap(const pcireg_t *regs, int capoff) { pcireg_t reg; printf("\n Advanced Features Capability Register\n"); reg = regs[o2i(capoff + PCI_AFCAPR)]; printf(" AF Capabilities register: 0x%02x\n", (reg >> 24) & 0xff); printf(" AF Structure Length: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_AF_LENGTH)); onoff("Transaction Pending", reg, PCI_AF_TP_CAP); onoff("Function Level Reset", reg, PCI_AF_FLR_CAP); reg = regs[o2i(capoff + PCI_AFCSR)]; printf(" AF Control register: 0x%02x\n", reg & 0xff); /* * Only PCI_AFCR_INITIATE_FLR is a member of the AF control register * and it's always 0 on read */ printf(" AF Status register: 0x%02x\n", (reg >> 8) & 0xff); onoff("Transaction Pending", reg, PCI_AFSR_TP); } static void pci_conf_print_ea_cap_prop(unsigned int prop) { switch (prop) { case PCI_EA_PROP_MEM_NONPREF: printf("Memory Space, Non-Prefetchable\n"); break; case PCI_EA_PROP_MEM_PREF: printf("Memory Space, Prefetchable\n"); break; case PCI_EA_PROP_IO: printf("I/O Space\n"); break; case PCI_EA_PROP_VF_MEM_NONPREF: printf("Resource for VF use, Memory Space, Non-Prefetchable\n"); break; case PCI_EA_PROP_VF_MEM_PREF: printf("Resource for VF use, Memory Space, Prefetch\n"); break; case PCI_EA_PROP_BB_MEM_NONPREF: printf("Behind the Bridge, Memory Space, Non-Pref\n"); break; case PCI_EA_PROP_BB_MEM_PREF: printf("Behind the Bridge, Memory Space. Prefetchable\n"); break; case PCI_EA_PROP_BB_IO: printf("Behind Bridge, I/O Space\n"); break; case PCI_EA_PROP_MEM_UNAVAIL: printf("Memory Space Unavailable\n"); break; case PCI_EA_PROP_IO_UNAVAIL: printf("IO Space Unavailable\n"); break; case PCI_EA_PROP_UNAVAIL: printf("Entry Unavailable for use\n"); break; default: printf("Reserved\n"); break; } } static void pci_conf_print_ea_cap(const pcireg_t *regs, int capoff) { pcireg_t reg, reg2; unsigned int entries, entoff, i; printf("\n Enhanced Allocation Capability Register\n"); reg = regs[o2i(capoff + PCI_EA_CAP1)]; printf(" EA Num Entries register: 0x%04x\n", reg >> 16); entries = PCIREG_SHIFTOUT(reg, PCI_EA_CAP1_NUMENTRIES); printf(" EA Num Entries: %u\n", entries); /* Type 1 only */ if (PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)]) == PCI_HDRTYPE_PPB) { reg = regs[o2i(capoff + PCI_EA_CAP2)]; printf(" EA Capability Second register: 0x%08x\n", reg); printf(" Fixed Secondary Bus Number: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_EA_CAP2_SECONDARY)); printf(" Fixed Subordinate Bus Number: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_EA_CAP2_SUBORDINATE)); entoff = capoff + 8; } else entoff = capoff + 4; for (i = 0; i < entries; i++) { uint64_t base, offset; bool baseis64, offsetis64; unsigned int bei, entry_size; printf(" Entry %u:\n", i); /* The first DW */ reg = regs[o2i(entoff)]; printf(" The first register: 0x%08x\n", reg); entry_size = PCIREG_SHIFTOUT(reg, PCI_EA_ES); printf(" Entry size: %u\n", entry_size); printf(" BAR Equivalent Indicator: "); bei = PCIREG_SHIFTOUT(reg, PCI_EA_BEI); switch (bei) { case PCI_EA_BEI_BAR0: case PCI_EA_BEI_BAR1: case PCI_EA_BEI_BAR2: case PCI_EA_BEI_BAR3: case PCI_EA_BEI_BAR4: case PCI_EA_BEI_BAR5: printf("BAR %u\n", bei - PCI_EA_BEI_BAR0); break; case PCI_EA_BEI_BEHIND: printf("Behind the function\n"); break; case PCI_EA_BEI_NOTIND: printf("Not Indicated\n"); break; case PCI_EA_BEI_EXPROM: printf("Expansion ROM\n"); break; case PCI_EA_BEI_VFBAR0: case PCI_EA_BEI_VFBAR1: case PCI_EA_BEI_VFBAR2: case PCI_EA_BEI_VFBAR3: case PCI_EA_BEI_VFBAR4: case PCI_EA_BEI_VFBAR5: printf("VF BAR %u\n", bei - PCI_EA_BEI_VFBAR0); break; case PCI_EA_BEI_RESERVED: default: printf("Reserved\n"); break; } printf(" Primary Properties: "); pci_conf_print_ea_cap_prop(PCIREG_SHIFTOUT(reg, PCI_EA_PP)); printf(" Secondary Properties: "); pci_conf_print_ea_cap_prop(PCIREG_SHIFTOUT(reg, PCI_EA_SP)); onoff("Writable", reg, PCI_EA_W); onoff("Enable for this entry", reg, PCI_EA_E); if (entry_size == 0) { entoff += 4; continue; } /* Base addr */ reg = regs[o2i(entoff + 4)]; base = reg & PCI_EA_LOWMASK; baseis64 = reg & PCI_EA_BASEMAXOFFSET_64BIT; printf(" Base Address Register Low: 0x%08x\n", reg); if (baseis64) { /* 64bit */ reg2 = regs[o2i(entoff + 12)]; printf(" Base Address Register high: 0x%08x\n", reg2); base |= (uint64_t)reg2 << 32; } /* Offset addr */ reg = regs[o2i(entoff + 8)]; offset = reg & PCI_EA_LOWMASK; offsetis64 = reg & PCI_EA_BASEMAXOFFSET_64BIT; printf(" Max Offset Register Low: 0x%08x\n", reg); if (offsetis64) { /* 64bit */ reg2 = regs[o2i(entoff + (baseis64 ? 16 : 12))]; printf(" Max Offset Register high: 0x%08x\n", reg2); offset |= (uint64_t)reg2 << 32; } printf(" range: 0x%016" PRIx64 "-0x%016" PRIx64 "\n", base, base + offset); entoff += 4 + (4 * entry_size); } } /* XXX pci_conf_print_fpb_cap */ static struct { pcireg_t cap; const char *name; void (*printfunc)(const pcireg_t *, int); } pci_captab[] = { { PCI_CAP_RESERVED0, "reserved", NULL }, { PCI_CAP_PWRMGMT, "Power Management", pci_conf_print_pcipm_cap }, { PCI_CAP_AGP, "AGP", pci_conf_print_agp_cap }, { PCI_CAP_VPD, "VPD", NULL }, { PCI_CAP_SLOTID, "SlotID", NULL }, { PCI_CAP_MSI, "MSI", pci_conf_print_msi_cap }, { PCI_CAP_CPCI_HOTSWAP, "CompactPCI Hot-swapping", NULL }, { PCI_CAP_PCIX, "PCI-X", pci_conf_print_pcix_cap }, { PCI_CAP_LDT, "HyperTransport", pci_conf_print_ht_cap }, { PCI_CAP_VENDSPEC, "Vendor-specific", pci_conf_print_vendspec_cap }, { PCI_CAP_DEBUGPORT, "Debug Port", pci_conf_print_debugport_cap }, { PCI_CAP_CPCI_RSRCCTL, "CompactPCI Resource Control", NULL }, { PCI_CAP_HOTPLUG, "Hot-Plug", NULL }, { PCI_CAP_SUBVENDOR, "Subsystem vendor ID", pci_conf_print_subsystem_cap }, { PCI_CAP_AGP8, "AGP 8x", NULL }, { PCI_CAP_SECURE, "Secure Device", pci_conf_print_secure_cap }, { PCI_CAP_PCIEXPRESS, "PCI Express", pci_conf_print_pcie_cap }, { PCI_CAP_MSIX, "MSI-X", pci_conf_print_msix_cap }, { PCI_CAP_SATA, "SATA", pci_conf_print_sata_cap }, { PCI_CAP_PCIAF, "Advanced Features", pci_conf_print_pciaf_cap}, { PCI_CAP_EA, "Enhanced Allocation", pci_conf_print_ea_cap }, { PCI_CAP_FPB, "Flattening Portal Bridge", NULL } }; static int pci_conf_find_cap(const pcireg_t *regs, unsigned int capid, int *offsetp) { pcireg_t rval; unsigned int capptr; int off; if (!(regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT)) return 0; /* Determine the Capability List Pointer register to start with. */ switch (PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)])) { case 0: /* standard device header */ case 1: /* PCI-PCI bridge header */ capptr = PCI_CAPLISTPTR_REG; break; case 2: /* PCI-CardBus Bridge header */ capptr = PCI_CARDBUS_CAPLISTPTR_REG; break; default: return 0; } for (off = PCI_CAPLIST_PTR(regs[o2i(capptr)]); off != 0; off = PCI_CAPLIST_NEXT(rval)) { rval = regs[o2i(off)]; if (capid == PCI_CAPLIST_CAP(rval)) { if (offsetp != NULL) *offsetp = off; return 1; } } return 0; } static void pci_conf_print_caplist( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs, int capoff) { int off; pcireg_t foundcap; pcireg_t rval; bool foundtable[__arraycount(pci_captab)]; unsigned int i; /* Clear table */ for (i = 0; i < __arraycount(pci_captab); i++) foundtable[i] = false; /* Print capability register's offset and the type first */ 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)); foundcap = PCI_CAPLIST_CAP(rval); if (foundcap < __arraycount(pci_captab)) { printf("%s)\n", pci_captab[foundcap].name); /* Mark as found */ foundtable[foundcap] = true; } else printf("unknown)\n"); } /* * And then, print the detail of each capability registers * in capability value's order. */ for (i = 0; i < __arraycount(pci_captab); i++) { if (foundtable[i] == false) continue; /* * The type was found. Search capability list again and * print all capabilities that the capability type is * the same. This is required because some capabilities * appear multiple times (e.g. HyperTransport capability). */ for (off = PCI_CAPLIST_PTR(regs[o2i(capoff)]); off != 0; off = PCI_CAPLIST_NEXT(regs[o2i(off)])) { rval = regs[o2i(off)]; if ((PCI_CAPLIST_CAP(rval) == i) && (pci_captab[i].printfunc != NULL)) pci_captab[i].printfunc(regs, off); } } } /* Extended Capability */ static void pci_conf_print_aer_cap_uc(pcireg_t reg) { onoff("Undefined", reg, PCI_AER_UC_UNDEFINED); onoff("Data Link Protocol Error", reg, PCI_AER_UC_DL_PROTOCOL_ERROR); onoff("Surprise Down Error", reg, PCI_AER_UC_SURPRISE_DOWN_ERROR); onoff("Poisoned TLP Received", reg, PCI_AER_UC_POISONED_TLP); onoff("Flow Control Protocol Error", reg, PCI_AER_UC_FC_PROTOCOL_ERROR); onoff("Completion Timeout", reg, PCI_AER_UC_COMPLETION_TIMEOUT); onoff("Completer Abort", reg, PCI_AER_UC_COMPLETER_ABORT); onoff("Unexpected Completion", reg, PCI_AER_UC_UNEXPECTED_COMPLETION); onoff("Receiver Overflow", reg, PCI_AER_UC_RECEIVER_OVERFLOW); onoff("Malformed TLP", reg, PCI_AER_UC_MALFORMED_TLP); onoff("ECRC Error", reg, PCI_AER_UC_ECRC_ERROR); onoff("Unsupported Request Error", reg, PCI_AER_UC_UNSUPPORTED_REQUEST_ERROR); onoff("ACS Violation", reg, PCI_AER_UC_ACS_VIOLATION); onoff("Uncorrectable Internal Error", reg, PCI_AER_UC_INTERNAL_ERROR); onoff("MC Blocked TLP", reg, PCI_AER_UC_MC_BLOCKED_TLP); onoff("AtomicOp Egress BLK", reg, PCI_AER_UC_ATOMIC_OP_EGRESS_BLOCKED); onoff("TLP Prefix Blocked Error", reg, PCI_AER_UC_TLP_PREFIX_BLOCKED_ERROR); onoff("Poisoned TLP Egress Blocked", reg, PCI_AER_UC_POISONTLP_EGRESS_BLOCKED); } static void pci_conf_print_aer_cap_cor(pcireg_t reg) { onoff("Receiver Error", reg, PCI_AER_COR_RECEIVER_ERROR); onoff("Bad TLP", reg, PCI_AER_COR_BAD_TLP); onoff("Bad DLLP", reg, PCI_AER_COR_BAD_DLLP); onoff("REPLAY_NUM Rollover", reg, PCI_AER_COR_REPLAY_NUM_ROLLOVER); onoff("Replay Timer Timeout", reg, PCI_AER_COR_REPLAY_TIMER_TIMEOUT); onoff("Advisory Non-Fatal Error", reg, PCI_AER_COR_ADVISORY_NF_ERROR); onoff("Corrected Internal Error", reg, PCI_AER_COR_INTERNAL_ERROR); onoff("Header Log Overflow", reg, PCI_AER_COR_HEADER_LOG_OVERFLOW); } static void pci_conf_print_aer_cap_control(pcireg_t reg, bool *tlp_prefix_log) { printf(" First Error Pointer: 0x%04x\n", PCIREG_SHIFTOUT(reg, PCI_AER_FIRST_ERROR_PTR)); onoff("ECRC Generation Capable", reg, PCI_AER_ECRC_GEN_CAPABLE); onoff("ECRC Generation Enable", reg, PCI_AER_ECRC_GEN_ENABLE); onoff("ECRC Check Capable", reg, PCI_AER_ECRC_CHECK_CAPABLE); onoff("ECRC Check Enable", reg, PCI_AER_ECRC_CHECK_ENABLE); onoff("Multiple Header Recording Capable", reg, PCI_AER_MULT_HDR_CAPABLE); onoff("Multiple Header Recording Enable", reg,PCI_AER_MULT_HDR_ENABLE); onoff("Completion Timeout Prefix/Header Log Capable", reg, PCI_AER_COMPTOUTPRFXHDRLOG_CAP); /* This bit is RsvdP if the End-End TLP Prefix Supported bit is Clear */ if (!tlp_prefix_log) return; onoff("TLP Prefix Log Present", reg, PCI_AER_TLP_PREFIX_LOG_PRESENT); *tlp_prefix_log = (reg & PCI_AER_TLP_PREFIX_LOG_PRESENT) ? true : false; } static void pci_conf_print_aer_cap_rooterr_cmd(pcireg_t reg) { onoff("Correctable Error Reporting Enable", reg, PCI_AER_ROOTERR_COR_ENABLE); onoff("Non-Fatal Error Reporting Enable", reg, PCI_AER_ROOTERR_NF_ENABLE); onoff("Fatal Error Reporting Enable", reg, PCI_AER_ROOTERR_F_ENABLE); } static void pci_conf_print_aer_cap_rooterr_status(pcireg_t reg) { onoff("ERR_COR Received", reg, PCI_AER_ROOTERR_COR_ERR); onoff("Multiple ERR_COR Received", reg, PCI_AER_ROOTERR_MULTI_COR_ERR); onoff("ERR_FATAL/NONFATAL_ERR Received", reg, PCI_AER_ROOTERR_UC_ERR); onoff("Multiple ERR_FATAL/NONFATAL_ERR Received", reg, PCI_AER_ROOTERR_MULTI_UC_ERR); onoff("First Uncorrectable Fatal", reg,PCI_AER_ROOTERR_FIRST_UC_FATAL); onoff("Non-Fatal Error Messages Received", reg,PCI_AER_ROOTERR_NF_ERR); onoff("Fatal Error Messages Received", reg, PCI_AER_ROOTERR_F_ERR); printf(" Advanced Error Interrupt Message Number: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_AER_ROOTERR_INT_MESSAGE)); } static void pci_conf_print_aer_cap_errsrc_id(pcireg_t reg) { printf(" Correctable Source ID: 0x%04x\n", PCIREG_SHIFTOUT(reg, PCI_AER_ERRSRC_ID_ERR_COR)); printf(" ERR_FATAL/NONFATAL Source ID: 0x%04x\n", PCIREG_SHIFTOUT(reg, PCI_AER_ERRSRC_ID_ERR_UC)); } static void pci_conf_print_aer_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; int pcie_capoff; int pcie_devtype = -1; bool tlp_prefix_log = false; if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff)) { reg = regs[o2i(pcie_capoff)]; pcie_devtype = PCIE_XCAP_TYPE(reg); /* PCIe DW9 to DW14 is for PCIe 2.0 and newer */ if (PCIREG_SHIFTOUT(reg, PCIE_XCAP_VER_MASK) >= 2) { reg = regs[o2i(pcie_capoff + PCIE_DCAP2)]; /* End-End TLP Prefix Supported */ if (reg & PCIE_DCAP2_EETLP_PREF) { tlp_prefix_log = true; } } } printf("\n Advanced Error Reporting Register\n"); reg = regs[o2i(extcapoff + PCI_AER_UC_STATUS)]; printf(" Uncorrectable Error Status register: 0x%08x\n", reg); pci_conf_print_aer_cap_uc(reg); reg = regs[o2i(extcapoff + PCI_AER_UC_MASK)]; printf(" Uncorrectable Error Mask register: 0x%08x\n", reg); pci_conf_print_aer_cap_uc(reg); reg = regs[o2i(extcapoff + PCI_AER_UC_SEVERITY)]; printf(" Uncorrectable Error Severity register: 0x%08x\n", reg); pci_conf_print_aer_cap_uc(reg); reg = regs[o2i(extcapoff + PCI_AER_COR_STATUS)]; printf(" Correctable Error Status register: 0x%08x\n", reg); pci_conf_print_aer_cap_cor(reg); reg = regs[o2i(extcapoff + PCI_AER_COR_MASK)]; printf(" Correctable Error Mask register: 0x%08x\n", reg); pci_conf_print_aer_cap_cor(reg); reg = regs[o2i(extcapoff + PCI_AER_CAP_CONTROL)]; printf(" Advanced Error Capabilities and Control register: 0x%08x\n", reg); pci_conf_print_aer_cap_control(reg, &tlp_prefix_log); reg = regs[o2i(extcapoff + PCI_AER_HEADER_LOG)]; printf(" Header Log register:\n"); pci_conf_print_regs(regs, extcapoff + PCI_AER_HEADER_LOG, extcapoff + PCI_AER_ROOTERR_CMD); switch (pcie_devtype) { case PCIE_XCAP_TYPE_RP: /* Root Port of PCI Express Root Complex */ case PCIE_XCAP_TYPE_RC_EVNTC: /* Root Complex Event Collector */ reg = regs[o2i(extcapoff + PCI_AER_ROOTERR_CMD)]; printf(" Root Error Command register: 0x%08x\n", reg); pci_conf_print_aer_cap_rooterr_cmd(reg); reg = regs[o2i(extcapoff + PCI_AER_ROOTERR_STATUS)]; printf(" Root Error Status register: 0x%08x\n", reg); pci_conf_print_aer_cap_rooterr_status(reg); reg = regs[o2i(extcapoff + PCI_AER_ERRSRC_ID)]; printf(" Error Source Identification register: 0x%08x\n", reg); pci_conf_print_aer_cap_errsrc_id(reg); break; } if (tlp_prefix_log) { reg = regs[o2i(extcapoff + PCI_AER_TLP_PREFIX_LOG)]; printf(" TLP Prefix Log register: 0x%08x\n", reg); } } /* * Helper function to print the arbitration phase register. * * phases: Number of phases in the arbitration tables. * arbsize: Number of bits in each phase. * indent: Add more two spaces if it's true. */ static void pci_conf_print_vc_cap_arbtab(const pcireg_t *regs, int off, const char *name, const int phases, int arbsize, bool indent) { pcireg_t reg; int num_per_reg = 32 / arbsize; int i, j; printf("%s %s Arbitration Table:\n", indent ? " " : "", name); for (i = 0; i < phases; i += num_per_reg) { reg = regs[o2i(off + (sizeof(uint32_t) * (i / num_per_reg)))]; for (j = 0; j < num_per_reg; j++) { printf("%s Phase[%d]: 0x%x\n", indent ? " " : "", i + j, (uint32_t)(reg & __BITS(arbsize - 1, 0))); reg >>= arbsize; } } } /* For VC, bit 4-7 are reserved. For Port, bit 6-7 are reserved */ static const int arb_phases[8] = {0, 32, 64, 128, 128, 256, 0, 0 }; static void pci_conf_print_vc_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, n; int arbtab, parbsize; pcireg_t arbsel; int i, count; printf("\n Virtual Channel Register\n"); reg = regs[o2i(extcapoff + PCI_VC_CAP1)]; printf(" Port VC Capability register 1: 0x%08x\n", reg); count = PCIREG_SHIFTOUT(reg, PCI_VC_CAP1_EXT_COUNT); printf(" Extended VC Count: %d\n", count); n = PCIREG_SHIFTOUT(reg, PCI_VC_CAP1_LOWPRI_EXT_COUNT); printf(" Low Priority Extended VC Count: %u\n", n); n = PCIREG_SHIFTOUT(reg, PCI_VC_CAP1_REFCLK); printf(" Reference Clock: %s\n", (n == PCI_VC_CAP1_REFCLK_100NS) ? "100ns" : "unknown"); parbsize = 1 << PCIREG_SHIFTOUT(reg, PCI_VC_CAP1_PORT_ARB_TABLE_SIZE); printf(" Port Arbitration Table Entry Size: %dbit\n", parbsize); reg = regs[o2i(extcapoff + PCI_VC_CAP2)]; printf(" Port VC Capability register 2: 0x%08x\n", reg); onoff("Hardware fixed arbitration scheme", reg, PCI_VC_CAP2_ARB_CAP_HW_FIXED_SCHEME); onoff("WRR arbitration with 32 phases", reg, PCI_VC_CAP2_ARB_CAP_WRR_32); onoff("WRR arbitration with 64 phases", reg, PCI_VC_CAP2_ARB_CAP_WRR_64); onoff("WRR arbitration with 128 phases", reg, PCI_VC_CAP2_ARB_CAP_WRR_128); arbtab = PCIREG_SHIFTOUT(reg, PCI_VC_CAP2_ARB_TABLE_OFFSET); printf(" VC Arbitration Table Offset: 0x%x\n", arbtab); reg = regs[o2i(extcapoff + PCI_VC_CONTROL)] & 0xffff; printf(" Port VC Control register: 0x%04x\n", reg); arbsel = PCIREG_SHIFTOUT(reg, PCI_VC_CONTROL_VC_ARB_SELECT); printf(" VC Arbitration Select: 0x%x\n", arbsel); reg = regs[o2i(extcapoff + PCI_VC_STATUS)] >> 16; printf(" Port VC Status register: 0x%04x\n", reg); onoff("VC Arbitration Table Status", reg, PCI_VC_STATUS_LOAD_VC_ARB_TABLE); if ((arbtab != 0) && (arbsel != 0)) pci_conf_print_vc_cap_arbtab(regs, extcapoff + (arbtab * 16), "VC", arb_phases[arbsel], 4, false); for (i = 0; i < count + 1; i++) { reg = regs[o2i(extcapoff + PCI_VC_RESOURCE_CAP(i))]; printf(" VC number %d\n", i); printf(" VC Resource Capability Register: 0x%08x\n", reg); onoff(" Non-configurable Hardware fixed arbitration scheme", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_HW_FIXED_SCHEME); onoff(" WRR arbitration with 32 phases", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_WRR_32); onoff(" WRR arbitration with 64 phases", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_WRR_64); onoff(" WRR arbitration with 128 phases", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_WRR_128); onoff(" Time-based WRR arbitration with 128 phases", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_TWRR_128); onoff(" WRR arbitration with 256 phases", reg, PCI_VC_RESOURCE_CAP_PORT_ARB_CAP_WRR_256); onoff(" Advanced Packet Switching", reg, PCI_VC_RESOURCE_CAP_ADV_PKT_SWITCH); onoff(" Reject Snoop Transaction", reg, PCI_VC_RESOURCE_CAP_REJCT_SNOOP_TRANS); n = PCIREG_SHIFTOUT(reg, PCI_VC_RESOURCE_CAP_MAX_TIME_SLOTS) + 1; printf(" Maximum Time Slots: %d\n", n); arbtab = PCIREG_SHIFTOUT(reg, PCI_VC_RESOURCE_CAP_PORT_ARB_TABLE_OFFSET); printf(" Port Arbitration Table offset: 0x%02x\n", arbtab); reg = regs[o2i(extcapoff + PCI_VC_RESOURCE_CTL(i))]; printf(" VC Resource Control Register: 0x%08x\n", reg); printf(" TC/VC Map: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_VC_RESOURCE_CTL_TCVC_MAP)); /* * The load Port Arbitration Table bit is used to update * the Port Arbitration logic and it's always 0 on read, so * we don't print it. */ arbsel = PCIREG_SHIFTOUT(reg, PCI_VC_RESOURCE_CTL_PORT_ARB_SELECT); printf(" Port Arbitration Select: 0x%x\n", arbsel); n = PCIREG_SHIFTOUT(reg, PCI_VC_RESOURCE_CTL_VC_ID); printf(" VC ID: %d\n", n); onoff(" VC Enable", reg, PCI_VC_RESOURCE_CTL_VC_ENABLE); reg = regs[o2i(extcapoff + PCI_VC_RESOURCE_STA(i))] >> 16; printf(" VC Resource Status Register: 0x%08x\n", reg); onoff(" Port Arbitration Table Status", reg, PCI_VC_RESOURCE_STA_PORT_ARB_TABLE); onoff(" VC Negotiation Pending", reg, PCI_VC_RESOURCE_STA_VC_NEG_PENDING); if ((arbtab != 0) && (arbsel != 0)) pci_conf_print_vc_cap_arbtab(regs, extcapoff + (arbtab * 16), "Port", arb_phases[arbsel], parbsize, true); } } /* * Print Power limit. This encoding is the same among the following registers: * - The Captured Slot Power Limit in the PCIe Device Capability Register. * - The Slot Power Limit in the PCIe Slot Capability Register. * - The Base Power in the Data register of Power Budgeting capability. */ static void pci_conf_print_pcie_power(uint8_t base, unsigned int scale) { unsigned int sdiv = 1; if ((scale == 0) && (base > 0xef)) { const char *s; switch (base) { case 0xf0: s = "239W < x <= 250W"; break; case 0xf1: s = "250W < x <= 275W"; break; case 0xf2: s = "275W < x <= 300W"; break; default: s = "reserved for greater than 300W"; break; } printf("%s\n", s); return; } for (unsigned int i = scale; i > 0; i--) sdiv *= 10; printf("%u", base / sdiv); if (scale != 0) { printf(".%u", base % sdiv); } printf ("W\n"); return; } static const char * pci_conf_print_pwrbdgt_type(uint8_t reg) { switch (reg) { case 0x00: return "PME Aux"; case 0x01: return "Auxilary"; case 0x02: return "Idle"; case 0x03: return "Sustained"; case 0x04: return "Sustained (Emergency Power Reduction)"; case 0x05: return "Maximum (Emergency Power Reduction)"; case 0x07: return "Maximum"; default: return "Unknown"; } } static const char * pci_conf_print_pwrbdgt_pwrrail(uint8_t reg) { switch (reg) { case 0x00: return "Power(12V)"; case 0x01: return "Power(3.3V)"; case 0x02: return "Power(1.5V or 1.8V)"; case 0x07: return "Thermal"; default: return "Unknown"; } } static void pci_conf_print_pwrbdgt_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; printf("\n Power Budgeting\n"); reg = regs[o2i(extcapoff + PCI_PWRBDGT_DSEL)]; printf(" Data Select register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_PWRBDGT_DATA)]; printf(" Data register: 0x%08x\n", reg); printf(" Base Power: "); pci_conf_print_pcie_power( PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_DATA_BASEPWR), PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_DATA_SCALE)); printf(" PM Sub State: 0x%hhx\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_PM_SUBSTAT)); printf(" PM State: D%u\n", PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_PM_STAT)); printf(" Type: %s\n", pci_conf_print_pwrbdgt_type( (uint8_t)(PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_TYPE)))); printf(" Power Rail: %s\n", pci_conf_print_pwrbdgt_pwrrail( (uint8_t)(PCIREG_SHIFTOUT(reg, PCI_PWRBDGT_PWRRAIL)))); reg = regs[o2i(extcapoff + PCI_PWRBDGT_CAP)]; printf(" Power Budget Capability register: 0x%08x\n", reg); onoff("System Allocated", reg, PCI_PWRBDGT_CAP_SYSALLOC); } static const char * pci_conf_print_rclink_dcl_cap_elmtype(unsigned char type) { switch (type) { case 0x00: return "Configuration Space Element"; case 0x01: return "System Egress Port or internal sink (memory)"; case 0x02: return "Internal Root Complex Link"; default: return "Unknown"; } } static void pci_conf_print_rclink_dcl_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; unsigned char nent, linktype; int i; printf("\n Root Complex Link Declaration\n"); reg = regs[o2i(extcapoff + PCI_RCLINK_DCL_ESDESC)]; printf(" Element Self Description Register: 0x%08x\n", reg); printf(" Element Type: %s\n", pci_conf_print_rclink_dcl_cap_elmtype((unsigned char)reg)); nent = PCIREG_SHIFTOUT(reg, PCI_RCLINK_DCL_ESDESC_NUMLINKENT); printf(" Number of Link Entries: %hhu\n", nent); printf(" Component ID: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_RCLINK_DCL_ESDESC_COMPID)); printf(" Port Number: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_RCLINK_DCL_ESDESC_PORTNUM)); for (i = 0; i < nent; i++) { reg = regs[o2i(extcapoff + PCI_RCLINK_DCL_LINKDESC(i))]; printf(" Link Entry %d:\n", i + 1); printf(" Link Description Register: 0x%08x\n", reg); onoff(" Link Valid", reg, PCI_RCLINK_DCL_LINKDESC_LVALID); linktype = reg & PCI_RCLINK_DCL_LINKDESC_LTYPE; onoff2(" Link Type", reg, PCI_RCLINK_DCL_LINKDESC_LTYPE, "Configuration Space", "Memory-Mapped Space"); onoff(" Associated RCRB Header", reg, PCI_RCLINK_DCL_LINKDESC_ARCRBH); printf(" Target Component ID: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_RCLINK_DCL_LINKDESC_TCOMPID)); printf(" Target Port Number: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(reg, PCI_RCLINK_DCL_LINKDESC_TPNUM)); if (linktype == 0) { /* Memory-Mapped Space */ reg = regs[o2i(extcapoff + PCI_RCLINK_DCL_LINKADDR_LT0_LO(i))]; printf(" Link Address Low Register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_RCLINK_DCL_LINKADDR_LT0_HI(i))]; printf(" Link Address High Register: 0x%08x\n", reg); } else { unsigned int nb; pcireg_t lo, hi; /* Configuration Space */ lo = regs[o2i(extcapoff + PCI_RCLINK_DCL_LINKADDR_LT1_LO(i))]; printf(" Configuration Space Low Register: " "0x%08x\n", lo); hi = regs[o2i(extcapoff + PCI_RCLINK_DCL_LINKADDR_LT1_HI(i))]; printf(" Configuration Space High Register: " "0x%08x\n", hi); nb = PCIREG_SHIFTOUT(lo, PCI_RCLINK_DCL_LINKADDR_LT1_N); printf(" N: %u\n", nb); printf(" Func: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(lo, PCI_RCLINK_DCL_LINKADDR_LT1_FUNC)); printf(" Dev: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(lo, PCI_RCLINK_DCL_LINKADDR_LT1_DEV)); printf(" Bus: %hhu\n", (uint8_t)PCIREG_SHIFTOUT(lo, PCI_RCLINK_DCL_LINKADDR_LT1_BUS(nb))); lo &= PCI_RCLINK_DCL_LINKADDR_LT1_BAL(i); printf(" Configuration Space Base Address: " "0x%016" PRIx64 "\n", ((uint64_t)hi << 32) + lo); } } } /* XXX pci_conf_print_rclink_ctl_cap */ static void pci_conf_print_rcec_assoc_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; printf("\n Root Complex Event Collector Association\n"); reg = regs[o2i(extcapoff + PCI_RCEC_ASSOC_ASSOCBITMAP)]; printf(" Association Bitmap for Root Complex Integrated Devices:" " 0x%08x\n", reg); if (PCI_EXTCAPLIST_VERSION(regs[o2i(extcapoff)]) >= 2) { reg = regs[o2i(extcapoff + PCI_RCEC_ASSOC_ASSOCBUSNUM)]; printf(" RCEC Associated Bus Numbers register: 0x%08x\n", reg); printf(" RCEC Next Bus: %u\n", PCIREG_SHIFTOUT(reg, PCI_RCEC_ASSOCBUSNUM_RCECNEXT)); printf(" RCEC Last Bus: %u\n", PCIREG_SHIFTOUT(reg, PCI_RCEC_ASSOCBUSNUM_RCECLAST)); } } /* XXX pci_conf_print_mfvc_cap */ /* XXX pci_conf_print_vc2_cap */ /* XXX pci_conf_print_rcrb_cap */ /* XXX pci_conf_print_vendor_cap */ /* XXX pci_conf_print_cac_cap */ static void pci_conf_print_acs_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; unsigned int size, i; printf("\n Access Control Services\n"); reg = regs[o2i(extcapoff + PCI_ACS_CAP)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" ACS Capability register: 0x%08x\n", cap); onoff("ACS Source Validation", cap, PCI_ACS_CAP_V); onoff("ACS Transaction Blocking", cap, PCI_ACS_CAP_B); onoff("ACS P2P Request Redirect", cap, PCI_ACS_CAP_R); onoff("ACS P2P Completion Redirect", cap, PCI_ACS_CAP_C); onoff("ACS Upstream Forwarding", cap, PCI_ACS_CAP_U); onoff("ACS Egress Control", cap, PCI_ACS_CAP_E); onoff("ACS Direct Translated P2P", cap, PCI_ACS_CAP_T); size = PCIREG_SHIFTOUT(cap, PCI_ACS_CAP_ECVSIZE); if (size == 0) size = 256; printf(" Egress Control Vector Size: %u\n", size); printf(" ACS Control register: 0x%08x\n", ctl); onoff("ACS Source Validation Enable", ctl, PCI_ACS_CTL_V); onoff("ACS Transaction Blocking Enable", ctl, PCI_ACS_CTL_B); onoff("ACS P2P Request Redirect Enable", ctl, PCI_ACS_CTL_R); onoff("ACS P2P Completion Redirect Enable", ctl, PCI_ACS_CTL_C); onoff("ACS Upstream Forwarding Enable", ctl, PCI_ACS_CTL_U); onoff("ACS Egress Control Enable", ctl, PCI_ACS_CTL_E); onoff("ACS Direct Translated P2P Enable", ctl, PCI_ACS_CTL_T); /* * If the P2P Egress Control Capability bit is 0, ignore the Egress * Control vector. */ if ((cap & PCI_ACS_CAP_E) == 0) return; for (i = 0; i < size; i += 32) printf(" Egress Control Vector [%u..%u]: 0x%08x\n", i + 31, i, regs[o2i(extcapoff + PCI_ACS_ECV + (i / 32) * 4 )]); } static void pci_conf_print_ari_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; printf("\n Alternative Routing-ID Interpretation Register\n"); reg = regs[o2i(extcapoff + PCI_ARI_CAP)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" Capability register: 0x%08x\n", cap); onoff("MVFC Function Groups Capability", reg, PCI_ARI_CAP_M); onoff("ACS Function Groups Capability", reg, PCI_ARI_CAP_A); printf(" Next Function Number: %u\n", PCIREG_SHIFTOUT(reg, PCI_ARI_CAP_NXTFN)); printf(" Control register: 0x%08x\n", ctl); onoff("MVFC Function Groups Enable", reg, PCI_ARI_CTL_M); onoff("ACS Function Groups Enable", reg, PCI_ARI_CTL_A); printf(" Function Group: %u\n", PCIREG_SHIFTOUT(reg, PCI_ARI_CTL_FUNCGRP)); } static void pci_conf_print_ats_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; unsigned int num; printf("\n Address Translation Services\n"); reg = regs[o2i(extcapoff + PCI_ARI_CAP)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" Capability register: 0x%04x\n", cap); num = PCIREG_SHIFTOUT(reg, PCI_ATS_CAP_INVQDEPTH); if (num == 0) num = 32; printf(" Invalidate Queue Depth: %u\n", num); onoff("Page Aligned Request", reg, PCI_ATS_CAP_PALIGNREQ); onoff("Global Invalidate", reg, PCI_ATS_CAP_GLOBALINVL); onoff("Relaxed Ordering", reg, PCI_ATS_CAP_RELAXORD); printf(" Control register: 0x%04x\n", ctl); printf(" Smallest Translation Unit: %u\n", PCIREG_SHIFTOUT(reg, PCI_ATS_CTL_STU)); onoff("Enable", reg, PCI_ATS_CTL_EN); } static void pci_conf_print_sernum_cap(const pcireg_t *regs, int extcapoff) { pcireg_t lo, hi; printf("\n Device Serial Number Register\n"); lo = regs[o2i(extcapoff + PCI_SERIAL_LOW)]; hi = regs[o2i(extcapoff + PCI_SERIAL_HIGH)]; printf(" Serial Number: %02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x\n", hi >> 24, (hi >> 16) & 0xff, (hi >> 8) & 0xff, hi & 0xff, lo >> 24, (lo >> 16) & 0xff, (lo >> 8) & 0xff, lo & 0xff); } static void pci_conf_print_sriov_cap(const pcireg_t *regs, int extcapoff) { char buf[sizeof("99999 MB")]; pcireg_t reg; pcireg_t total_vfs; int i; bool first; printf("\n Single Root IO Virtualization Register\n"); reg = regs[o2i(extcapoff + PCI_SRIOV_CAP)]; printf(" Capabilities register: 0x%08x\n", reg); onoff("VF Migration Capable", reg, PCI_SRIOV_CAP_VF_MIGRATION); onoff("ARI Capable Hierarchy Preserved", reg, PCI_SRIOV_CAP_ARI_CAP_HIER_PRESERVED); if (reg & PCI_SRIOV_CAP_VF_MIGRATION) { printf(" VF Migration Interrupt Message Number: 0x%03x\n", PCIREG_SHIFTOUT(reg, PCI_SRIOV_CAP_VF_MIGRATION_INTMSG_N)); } reg = regs[o2i(extcapoff + PCI_SRIOV_CTL)] & 0xffff; printf(" Control register: 0x%04x\n", reg); onoff("VF Enable", reg, PCI_SRIOV_CTL_VF_ENABLE); onoff("VF Migration Enable", reg, PCI_SRIOV_CTL_VF_MIGRATION_SUPPORT); onoff("VF Migration Interrupt Enable", reg, PCI_SRIOV_CTL_VF_MIGRATION_INT_ENABLE); onoff("VF Memory Space Enable", reg, PCI_SRIOV_CTL_VF_MSE); onoff("ARI Capable Hierarchy", reg, PCI_SRIOV_CTL_ARI_CAP_HIER); reg = regs[o2i(extcapoff + PCI_SRIOV_STA)] >> 16; printf(" Status register: 0x%04x\n", reg); onoff("VF Migration Status", reg, PCI_SRIOV_STA_VF_MIGRATION); reg = regs[o2i(extcapoff + PCI_SRIOV_INITIAL_VFS)] & 0xffff; printf(" InitialVFs register: 0x%04x\n", reg); total_vfs = reg = regs[o2i(extcapoff + PCI_SRIOV_TOTAL_VFS)] >> 16; printf(" TotalVFs register: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_NUM_VFS)] & 0xffff; printf(" NumVFs register: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_FUNC_DEP_LINK)] >> 16; printf(" Function Dependency Link register: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_VF_OFF)] & 0xffff; printf(" First VF Offset register: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_VF_STRIDE)] >> 16; printf(" VF Stride register: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_VF_DID)] >> 16; printf(" Device ID: 0x%04x\n", reg); reg = regs[o2i(extcapoff + PCI_SRIOV_PAGE_CAP)]; printf(" Supported Page Sizes register: 0x%08x\n", reg); printf(" Supported Page Size:"); for (i = 0, first = true; i < 32; i++) { if (reg & __BIT(i)) { #ifdef _KERNEL format_bytes(buf, sizeof(buf), 1LL << (i + 12)); #else humanize_number(buf, sizeof(buf), 1LL << (i + 12), "B", HN_AUTOSCALE, 0); #endif printf("%s %s", first ? "" : ",", buf); first = false; } } printf("\n"); reg = regs[o2i(extcapoff + PCI_SRIOV_PAGE_SIZE)]; printf(" System Page Sizes register: 0x%08x\n", reg); printf(" Page Size: "); if (reg != 0) { int bitpos = ffs(reg) -1; /* Assume only one bit is set. */ #ifdef _KERNEL format_bytes(buf, sizeof(buf), 1LL << (bitpos + 12)); #else humanize_number(buf, sizeof(buf), 1LL << (bitpos + 12), "B", HN_AUTOSCALE, 0); #endif printf("%s", buf); } else { printf("unknown"); } printf("\n"); for (i = 0; i < 6; i++) { reg = regs[o2i(extcapoff + PCI_SRIOV_BAR(i))]; printf(" VF BAR%d register: 0x%08x\n", i, reg); } if (total_vfs > 0) { reg = regs[o2i(extcapoff + PCI_SRIOV_VF_MIG_STA_AR)]; printf(" VF Migration State Array Offset register: 0x%08x\n", reg); printf(" VF Migration State Offset: 0x%08x\n", PCIREG_SHIFTOUT(reg, PCI_SRIOV_VF_MIG_STA_OFFSET)); i = PCIREG_SHIFTOUT(reg, PCI_SRIOV_VF_MIG_STA_BIR); printf(" VF Migration State BIR: "); if (i >= 0 && i <= 5) { printf("BAR%d", i); } else { printf("unknown BAR (%d)", i); } printf("\n"); } } /* XXX pci_conf_print_mriov_cap */ static void pci_conf_print_multicast_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; pcireg_t regl, regh; uint64_t addr; int n; printf("\n Multicast\n"); reg = regs[o2i(extcapoff + PCI_MCAST_CTL)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" Capability Register: 0x%04x\n", cap); printf(" Max Group: %u\n", (pcireg_t)(reg & PCI_MCAST_CAP_MAXGRP) + 1); /* Endpoint Only */ n = PCIREG_SHIFTOUT(reg, PCI_MCAST_CAP_WINSIZEREQ); if (n > 0) printf(" Window Size Requested: %d\n", 1 << (n - 1)); onoff("ECRC Regeneration Supported", reg, PCI_MCAST_CAP_ECRCREGEN); printf(" Control Register: 0x%04x\n", ctl); printf(" Num Group: %u\n", PCIREG_SHIFTOUT(reg, PCI_MCAST_CTL_NUMGRP) + 1); onoff("Enable", reg, PCI_MCAST_CTL_ENA); regl = regs[o2i(extcapoff + PCI_MCAST_BARL)]; regh = regs[o2i(extcapoff + PCI_MCAST_BARH)]; printf(" Base Address Register 0: 0x%08x\n", regl); printf(" Base Address Register 1: 0x%08x\n", regh); printf(" Index Position: %u\n", (unsigned int)(regl & PCI_MCAST_BARL_INDPOS)); addr = ((uint64_t)regh << 32) | (regl & PCI_MCAST_BARL_ADDR); printf(" Base Address: 0x%016" PRIx64 "\n", addr); regl = regs[o2i(extcapoff + PCI_MCAST_RECVL)]; regh = regs[o2i(extcapoff + PCI_MCAST_RECVH)]; printf(" Receive Register 0: 0x%08x\n", regl); printf(" Receive Register 1: 0x%08x\n", regh); regl = regs[o2i(extcapoff + PCI_MCAST_BLOCKALLL)]; regh = regs[o2i(extcapoff + PCI_MCAST_BLOCKALLH)]; printf(" Block All Register 0: 0x%08x\n", regl); printf(" Block All Register 1: 0x%08x\n", regh); regl = regs[o2i(extcapoff + PCI_MCAST_BLOCKUNTRNSL)]; regh = regs[o2i(extcapoff + PCI_MCAST_BLOCKUNTRNSH)]; printf(" Block Untranslated Register 0: 0x%08x\n", regl); printf(" Block Untranslated Register 1: 0x%08x\n", regh); regl = regs[o2i(extcapoff + PCI_MCAST_OVERLAYL)]; regh = regs[o2i(extcapoff + PCI_MCAST_OVERLAYH)]; printf(" Overlay BAR 0: 0x%08x\n", regl); printf(" Overlay BAR 1: 0x%08x\n", regh); n = regl & PCI_MCAST_OVERLAYL_SIZE; printf(" Overlay Size: "); if (n >= 6) printf("%d\n", n); else printf("off\n"); addr = ((uint64_t)regh << 32) | (regl & PCI_MCAST_OVERLAYL_ADDR); printf(" Overlay BAR: 0x%016" PRIx64 "\n", addr); } static void pci_conf_print_page_req_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, ctl, sta; printf("\n Page Request\n"); reg = regs[o2i(extcapoff + PCI_PAGE_REQ_CTL)]; ctl = reg & 0xffff; sta = reg >> 16; printf(" Control Register: 0x%04x\n", ctl); onoff("Enable", reg, PCI_PAGE_REQ_CTL_E); onoff("Reset", reg, PCI_PAGE_REQ_CTL_R); printf(" Status Register: 0x%04x\n", sta); onoff("Response Failure", reg, PCI_PAGE_REQ_STA_RF); onoff("Unexpected Page Request Group Index", reg, PCI_PAGE_REQ_STA_UPRGI); onoff("Stopped", reg, PCI_PAGE_REQ_STA_S); onoff("PRG Response PASID Required", reg, PCI_PAGE_REQ_STA_PASIDR); reg = regs[o2i(extcapoff + PCI_PAGE_REQ_OUTSTCAPA)]; printf(" Outstanding Page Request Capacity: %u\n", reg); reg = regs[o2i(extcapoff + PCI_PAGE_REQ_OUTSTALLOC)]; printf(" Outstanding Page Request Allocation: %u\n", reg); } /* XXX pci_conf_print_amd_cap */ #define MEM_PBUFSIZE sizeof("999GB") static void pci_conf_print_resizbar_cap(const pcireg_t *regs, int extcapoff) { pcireg_t cap, ctl; unsigned int bars, i, n; char pbuf[MEM_PBUFSIZE]; printf("\n Resizable BAR\n"); /* Get Number of Resizable BARs */ ctl = regs[o2i(extcapoff + PCI_RESIZBAR_CTL(0))]; bars = PCIREG_SHIFTOUT(ctl, PCI_RESIZBAR_CTL_NUMBAR); printf(" Number of Resizable BARs: "); if (bars <= 6) printf("%u\n", bars); else { printf("incorrect (%u)\n", bars); return; } for (n = 0; n < 6; n++) { cap = regs[o2i(extcapoff + PCI_RESIZBAR_CAP(n))]; printf(" Capability register(%u): 0x%08x\n", n, cap); if ((cap & PCI_RESIZBAR_CAP_SIZEMASK) == 0) continue; /* Not Used */ printf(" Acceptable BAR sizes:"); for (i = 4; i <= 23; i++) { if ((cap & (1 << i)) != 0) { humanize_number(pbuf, MEM_PBUFSIZE, (int64_t)1024 * 1024 << (i - 4), "B", #ifdef _KERNEL 1); #else HN_AUTOSCALE, HN_NOSPACE); #endif printf(" %s", pbuf); } } printf("\n"); ctl = regs[o2i(extcapoff + PCI_RESIZBAR_CTL(n))]; printf(" Control register(%u): 0x%08x\n", n, ctl); printf(" BAR Index: %u\n", PCIREG_SHIFTOUT(ctl, PCI_RESIZBAR_CTL_BARIDX)); humanize_number(pbuf, MEM_PBUFSIZE, (int64_t)1024 * 1024 << PCIREG_SHIFTOUT(ctl, PCI_RESIZBAR_CTL_BARSIZ), "B", #ifdef _KERNEL 1); #else HN_AUTOSCALE, HN_NOSPACE); #endif printf(" BAR Size: %s\n", pbuf); } } static void pci_conf_print_dpa_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; unsigned int substmax, i; printf("\n Dynamic Power Allocation\n"); reg = regs[o2i(extcapoff + PCI_DPA_CAP)]; printf(" Capability register: 0x%08x\n", reg); substmax = PCIREG_SHIFTOUT(reg, PCI_DPA_CAP_SUBSTMAX); printf(" Substate Max: %u\n", substmax); printf(" Transition Latency Unit: "); switch (PCIREG_SHIFTOUT(reg, PCI_DPA_CAP_TLUINT)) { case 0: printf("1ms\n"); break; case 1: printf("10ms\n"); break; case 2: printf("100ms\n"); break; default: printf("reserved\n"); break; } printf(" Power Allocation Scale: "); switch (PCIREG_SHIFTOUT(reg, PCI_DPA_CAP_PAS)) { case 0: printf("10.0x\n"); break; case 1: printf("1.0x\n"); break; case 2: printf("0.1x\n"); break; case 3: printf("0.01x\n"); break; } printf(" Transition Latency Value 0: %u\n", PCIREG_SHIFTOUT(reg, PCI_DPA_CAP_XLCY0)); printf(" Transition Latency Value 1: %u\n", PCIREG_SHIFTOUT(reg, PCI_DPA_CAP_XLCY1)); reg = regs[o2i(extcapoff + PCI_DPA_LATIND)]; printf(" Latency Indicator register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_DPA_CS)]; printf(" Status register: 0x%04x\n", reg & 0xffff); printf(" Substate Status: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_DPA_CS_SUBSTSTAT)); onoff("Substate Control Enabled", reg, PCI_DPA_CS_SUBSTCTLEN); printf(" Control register: 0x%04x\n", reg >> 16); printf(" Substate Control: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_DPA_CS_SUBSTCTL)); for (i = 0; i <= substmax; i++) printf(" Substate Power Allocation register %d: 0x%02x\n", i, (regs[PCI_DPA_PWRALLOC + (i / 4)] >> (i % 4) & 0xff)); } static const char * pci_conf_print_tph_req_cap_sttabloc(uint8_t val) { switch (val) { case PCI_TPH_REQ_STTBLLOC_NONE: return "Not Present"; case PCI_TPH_REQ_STTBLLOC_TPHREQ: return "in the TPH Requester Capability Structure"; case PCI_TPH_REQ_STTBLLOC_MSIX: return "in the MSI-X Table"; default: return "Unknown"; } } static void pci_conf_print_tph_req_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; int size = 0, i, j; uint8_t sttbloc; printf("\n TPH Requester Extended Capability\n"); reg = regs[o2i(extcapoff + PCI_TPH_REQ_CAP)]; printf(" TPH Requester Capabililty register: 0x%08x\n", reg); onoff("No ST Mode Supported", reg, PCI_TPH_REQ_CAP_NOST); onoff("Interrupt Vector Mode Supported", reg, PCI_TPH_REQ_CAP_INTVEC); onoff("Device Specific Mode Supported", reg, PCI_TPH_REQ_CAP_DEVSPEC); onoff("Extend TPH Requester Supported", reg, PCI_TPH_REQ_CAP_XTPHREQ); sttbloc = PCIREG_SHIFTOUT(reg, PCI_TPH_REQ_CAP_STTBLLOC); printf(" ST Table Location: %s\n", pci_conf_print_tph_req_cap_sttabloc(sttbloc)); if (sttbloc == PCI_TPH_REQ_STTBLLOC_TPHREQ) { size = PCIREG_SHIFTOUT(reg, PCI_TPH_REQ_CAP_STTBLSIZ) + 1; printf(" ST Table Size: %d\n", size); } reg = regs[o2i(extcapoff + PCI_TPH_REQ_CTL)]; printf(" TPH Requester Control register: 0x%08x\n", reg); printf(" ST Mode Select: "); switch (PCIREG_SHIFTOUT(reg, PCI_TPH_REQ_CTL_STSEL)) { case PCI_TPH_REQ_CTL_STSEL_NO: printf("No ST Mode\n"); break; case PCI_TPH_REQ_CTL_STSEL_IV: printf("Interrupt Vector Mode\n"); break; case PCI_TPH_REQ_CTL_STSEL_DS: printf("Device Specific Mode\n"); break; default: printf("(reserved value)\n"); break; } printf(" TPH Requester Enable: "); switch (PCIREG_SHIFTOUT(reg, PCI_TPH_REQ_CTL_TPHREQEN)) { case PCI_TPH_REQ_CTL_TPHREQEN_NO: /* 0x0 */ printf("Not permitted\n"); break; case PCI_TPH_REQ_CTL_TPHREQEN_TPH: printf("TPH and not Extended TPH\n"); break; case PCI_TPH_REQ_CTL_TPHREQEN_ETPH: printf("TPH and Extended TPH"); break; default: printf("(reserved value)\n"); break; } if (sttbloc != PCI_TPH_REQ_STTBLLOC_TPHREQ) return; for (i = 0; i < size ; i += 2) { reg = regs[o2i(extcapoff + PCI_TPH_REQ_STTBL + i / 2)]; for (j = 0; j < 2 ; j++) { uint32_t entry = reg; if (j != 0) entry >>= 16; entry &= 0xffff; printf(" TPH ST Table Entry (%d): 0x%04"PRIx32"\n", i + j, entry); } } } static void pci_conf_print_ltr_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; printf("\n Latency Tolerance Reporting\n"); reg = regs[o2i(extcapoff + PCI_LTR_MAXSNOOPLAT)]; printf(" Max Snoop Latency Register: 0x%04x\n", reg & 0xffff); printf(" Max Snoop Latency: %juns\n", (uintmax_t)(PCIREG_SHIFTOUT(reg, PCI_LTR_MAXSNOOPLAT_VAL) * PCI_LTR_SCALETONS(PCIREG_SHIFTOUT(reg, PCI_LTR_MAXSNOOPLAT_SCALE)))); printf(" Max No-Snoop Latency Register: 0x%04x\n", reg >> 16); printf(" Max No-Snoop Latency: %juns\n", (uintmax_t)(PCIREG_SHIFTOUT(reg, PCI_LTR_MAXNOSNOOPLAT_VAL) * PCI_LTR_SCALETONS(PCIREG_SHIFTOUT(reg, PCI_LTR_MAXNOSNOOPLAT_SCALE)))); } static void pci_conf_print_sec_pcie_cap(const pcireg_t *regs, int extcapoff) { int pcie_capoff; pcireg_t reg; int i, maxlinkwidth; printf("\n Secondary PCI Express Register\n"); reg = regs[o2i(extcapoff + PCI_SECPCIE_LCTL3)]; printf(" Link Control 3 register: 0x%08x\n", reg); onoff("Perform Equalization", reg, PCI_SECPCIE_LCTL3_PERFEQ); onoff("Link Equalization Request Interrupt Enable", reg, PCI_SECPCIE_LCTL3_LINKEQREQ_IE); printf(" Enable Lower SKP OS Generation Vector:"); pci_print_pcie_linkspeedvector( PCIREG_SHIFTOUT(reg, PCI_SECPCIE_LCTL3_ELSKPOSGENV)); printf("\n"); reg = regs[o2i(extcapoff + PCI_SECPCIE_LANEERR_STA)]; printf(" Lane Error Status register: 0x%08x\n", reg); /* Get Max Link Width */ if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff)) { reg = regs[o2i(pcie_capoff + PCIE_LCAP)]; maxlinkwidth = PCIREG_SHIFTOUT(reg, PCIE_LCAP_MAX_WIDTH); } else { printf("error: failed to get PCIe capability\n"); return; } for (i = 0; i < maxlinkwidth; i++) { reg = regs[o2i(extcapoff + PCI_SECPCIE_EQCTL(i))]; if (i % 2 != 0) reg >>= 16; else reg &= 0xffff; printf(" Equalization Control Register (Link %d): 0x%04x\n", i, reg); printf(" Downstream Port Transmit Preset: 0x%x\n", PCIREG_SHIFTOUT(reg, PCI_SECPCIE_EQCTL_DP_XMIT_PRESET)); printf(" Downstream Port Receive Hint: 0x%x\n", PCIREG_SHIFTOUT(reg, PCI_SECPCIE_EQCTL_DP_RCV_HINT)); printf(" Upstream Port Transmit Preset: 0x%x\n", PCIREG_SHIFTOUT(reg, PCI_SECPCIE_EQCTL_UP_XMIT_PRESET)); printf(" Upstream Port Receive Hint: 0x%x\n", PCIREG_SHIFTOUT(reg, PCI_SECPCIE_EQCTL_UP_RCV_HINT)); } } /* XXX pci_conf_print_pmux_cap */ static void pci_conf_print_pasid_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; unsigned int num; printf("\n Process Address Space ID\n"); reg = regs[o2i(extcapoff + PCI_PASID_CAP)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" PASID Capability Register: 0x%04x\n", cap); onoff("Execute Permission Supported", reg, PCI_PASID_CAP_XPERM); onoff("Privileged Mode Supported", reg, PCI_PASID_CAP_PRIVMODE); num = (1 << PCIREG_SHIFTOUT(reg, PCI_PASID_CAP_MAXPASIDW)) - 1; printf(" Max PASID Width: %u\n", num); printf(" PASID Control Register: 0x%04x\n", ctl); onoff("PASID Enable", reg, PCI_PASID_CTL_PASID_EN); onoff("Execute Permission Enable", reg, PCI_PASID_CTL_XPERM_EN); onoff("Privileged Mode Enable", reg, PCI_PASID_CTL_PRIVMODE_EN); } static void pci_conf_print_lnr_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl; unsigned int num; printf("\n LN Requester\n"); reg = regs[o2i(extcapoff + PCI_LNR_CAP)]; cap = reg & 0xffff; ctl = reg >> 16; printf(" LNR Capability register: 0x%04x\n", cap); onoff("LNR-64 Supported", reg, PCI_LNR_CAP_64); onoff("LNR-128 Supported", reg, PCI_LNR_CAP_128); num = 1 << PCIREG_SHIFTOUT(reg, PCI_LNR_CAP_REGISTMAX); printf(" LNR Registration MAX: %u\n", num); printf(" LNR Control register: 0x%04x\n", ctl); onoff("LNR Enable", reg, PCI_LNR_CTL_EN); onoff("LNR CLS", reg, PCI_LNR_CTL_CLS); num = 1 << PCIREG_SHIFTOUT(reg, PCI_LNR_CTL_REGISTLIM); printf(" LNR Registration Limit: %u\n", num); } static void pci_conf_print_dpc_pio(pcireg_t r) { onoff("Cfg Request received UR Completion", r,PCI_DPC_RPPIO_CFGUR_CPL); onoff("Cfg Request received CA Completion", r,PCI_DPC_RPPIO_CFGCA_CPL); onoff("Cfg Request Completion Timeout", r, PCI_DPC_RPPIO_CFG_CTO); onoff("I/O Request received UR Completion", r, PCI_DPC_RPPIO_IOUR_CPL); onoff("I/O Request received CA Completion", r, PCI_DPC_RPPIO_IOCA_CPL); onoff("I/O Request Completion Timeout", r, PCI_DPC_RPPIO_IO_CTO); onoff("Mem Request received UR Completion", r,PCI_DPC_RPPIO_MEMUR_CPL); onoff("Mem Request received CA Completion", r,PCI_DPC_RPPIO_MEMCA_CPL); onoff("Mem Request Completion Timeout", r, PCI_DPC_RPPIO_MEM_CTO); } static void pci_conf_print_dpc_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, cap, ctl, stat, errsrc; const char *trigstr; bool rpext; printf("\n Downstream Port Containment\n"); reg = regs[o2i(extcapoff + PCI_DPC_CCR)]; cap = reg & 0xffff; ctl = reg >> 16; rpext = (reg & PCI_DPCCAP_RPEXT) ? true : false; printf(" DPC Capability register: 0x%04x\n", cap); printf(" DPC Interrupt Message Number: %02x\n", (unsigned int)(cap & PCI_DPCCAP_IMSGN)); onoff("RP Extensions for DPC", reg, PCI_DPCCAP_RPEXT); onoff("Poisoned TLP Egress Blocking Supported", reg, PCI_DPCCAP_POISONTLPEB); onoff("DPC Software Triggering Supported", reg, PCI_DPCCAP_SWTRIG); printf(" RP PIO Log Size: %u\n", PCIREG_SHIFTOUT(reg, PCI_DPCCAP_RPPIOLOGSZ)); onoff("DL_Active ERR_COR Signaling Supported", reg, PCI_DPCCAP_DLACTECORS); printf(" DPC Control register: 0x%04x\n", ctl); switch (PCIREG_SHIFTOUT(reg, PCI_DPCCTL_TIRGEN)) { case 0: trigstr = "disabled"; break; case 1: trigstr = "enabled(ERR_FATAL)"; break; case 2: trigstr = "enabled(ERR_NONFATAL or ERR_FATAL)"; break; default: trigstr = "(reserverd)"; break; } printf(" DPC Trigger Enable: %s\n", trigstr); printf(" DPC Completion Control: %s Completion Status\n", (reg & PCI_DPCCTL_COMPCTL) ? "Unsupported Request(UR)" : "Completer Abort(CA)"); onoff("DPC Interrupt Enable", reg, PCI_DPCCTL_IE); onoff("DPC ERR_COR Enable", reg, PCI_DPCCTL_ERRCOREN); onoff("Poisoned TLP Egress Blocking Enable", reg, PCI_DPCCTL_POISONTLPEB); onoff("DPC Software Trigger", reg, PCI_DPCCTL_SWTRIG); onoff("DL_Active ERR_COR Enable", reg, PCI_DPCCTL_DLACTECOR); reg = regs[o2i(extcapoff + PCI_DPC_STATESID)]; stat = reg & 0xffff; errsrc = reg >> 16; printf(" DPC Status register: 0x%04x\n", stat); onoff("DPC Trigger Status", reg, PCI_DPCSTAT_TSTAT); switch (PCIREG_SHIFTOUT(reg, PCI_DPCSTAT_TREASON)) { case 0: trigstr = "an unmasked uncorrectable error"; break; case 1: trigstr = "receiving an ERR_NONFATAL"; break; case 2: trigstr = "receiving an ERR_FATAL"; break; case 3: trigstr = "DPC Trigger Reason Extension field"; break; } printf(" DPC Trigger Reason: Due to %s\n", trigstr); onoff("DPC Interrupt Status", reg, PCI_DPCSTAT_ISTAT); if (rpext) onoff("DPC RP Busy", reg, PCI_DPCSTAT_RPBUSY); switch (PCIREG_SHIFTOUT(reg, PCI_DPCSTAT_TREASON)) { case 0: trigstr = "Due to RP PIO error"; break; case 1: trigstr = "Due to the DPC Software trigger bit"; break; default: trigstr = "(reserved)"; break; } printf(" DPC Trigger Reason Extension: %s\n", trigstr); if (rpext) printf(" RP PIO First Error Pointer: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_DPCSTAT_RPPIOFEP)); printf(" DPC Error Source ID register: 0x%04x\n", errsrc); if (!rpext) return; /* * All of the following registers are implemented by a device which has * RP Extensions for DPC */ reg = regs[o2i(extcapoff + PCI_DPC_RPPIO_STAT)]; printf(" RP PIO Status Register: 0x%08x\n", reg); pci_conf_print_dpc_pio(reg); reg = regs[o2i(extcapoff + PCI_DPC_RPPIO_MASK)]; printf(" RP PIO Mask Register: 0x%08x\n", reg); pci_conf_print_dpc_pio(reg); reg = regs[o2i(extcapoff + PCI_DPC_RPPIO_SEVE)]; printf(" RP PIO Severity Register: 0x%08x\n", reg); pci_conf_print_dpc_pio(reg); reg = regs[o2i(extcapoff + PCI_DPC_RPPIO_SYSERR)]; printf(" RP PIO SysError Register: 0x%08x\n", reg); pci_conf_print_dpc_pio(reg); reg = regs[o2i(extcapoff + PCI_DPC_RPPIO_EXCPT)]; printf(" RP PIO Exception Register: 0x%08x\n", reg); pci_conf_print_dpc_pio(reg); printf(" RP PIO Header Log Register: start from 0x%03x\n", extcapoff + PCI_DPC_RPPIO_HLOG); printf(" RP PIO ImpSpec Log Register: start from 0x%03x\n", extcapoff + PCI_DPC_RPPIO_IMPSLOG); printf(" RP PIO TLP Prefix Log Register: start from 0x%03x\n", extcapoff + PCI_DPC_RPPIO_TLPPLOG); } static int pci_conf_l1pm_cap_tposcale(unsigned char scale) { /* Return scale in us */ switch (scale) { case 0x0: return 2; case 0x1: return 10; case 0x2: return 100; default: return -1; } } static void pci_conf_print_l1pm_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; int scale, val; int pcie_capoff; printf("\n L1 PM Substates\n"); reg = regs[o2i(extcapoff + PCI_L1PM_CAP)]; printf(" L1 PM Substates Capability register: 0x%08x\n", reg); onoff("PCI-PM L1.2 Supported", reg, PCI_L1PM_CAP_PCIPM12); onoff("PCI-PM L1.1 Supported", reg, PCI_L1PM_CAP_PCIPM11); onoff("ASPM L1.2 Supported", reg, PCI_L1PM_CAP_ASPM12); onoff("ASPM L1.1 Supported", reg, PCI_L1PM_CAP_ASPM11); onoff("L1 PM Substates Supported", reg, PCI_L1PM_CAP_L1PM); /* The Link Activation Supported bit is only for Downstream Port */ if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff)) { uint32_t t = regs[o2i(pcie_capoff)]; if ((t == PCIE_XCAP_TYPE_RP) || (t == PCIE_XCAP_TYPE_DOWN)) onoff("Link Activation Supported", reg, PCI_L1PM_CAP_LA); } printf(" Port Common Mode Restore Time: %uus\n", PCIREG_SHIFTOUT(reg, PCI_L1PM_CAP_PCMRT)); scale = pci_conf_l1pm_cap_tposcale( PCIREG_SHIFTOUT(reg, PCI_L1PM_CAP_PTPOSCALE)); val = PCIREG_SHIFTOUT(reg, PCI_L1PM_CAP_PTPOVAL); printf(" Port T_POWER_ON: "); if (scale == -1) printf("unknown\n"); else printf("%dus\n", val * scale); reg = regs[o2i(extcapoff + PCI_L1PM_CTL1)]; printf(" L1 PM Substates Control register 1: 0x%08x\n", reg); onoff("PCI-PM L1.2 Enable", reg, PCI_L1PM_CTL1_PCIPM12_EN); onoff("PCI-PM L1.1 Enable", reg, PCI_L1PM_CTL1_PCIPM11_EN); onoff("ASPM L1.2 Enable", reg, PCI_L1PM_CTL1_ASPM12_EN); onoff("ASPM L1.1 Enable", reg, PCI_L1PM_CTL1_ASPM11_EN); onoff("Link Activation Interrupt Enable", reg, PCI_L1PM_CTL1_LAIE); onoff("Link Activation Control", reg, PCI_L1PM_CTL1_LA); printf(" Common Mode Restore Time: %uus\n", PCIREG_SHIFTOUT(reg, PCI_L1PM_CTL1_CMRT)); scale = PCI_LTR_SCALETONS(PCIREG_SHIFTOUT(reg, PCI_L1PM_CTL1_LTRTHSCALE)); val = PCIREG_SHIFTOUT(reg, PCI_L1PM_CTL1_LTRTHVAL); printf(" LTR L1.2 THRESHOLD: %dus\n", val * scale); reg = regs[o2i(extcapoff + PCI_L1PM_CTL2)]; printf(" L1 PM Substates Control register 2: 0x%08x\n", reg); scale = pci_conf_l1pm_cap_tposcale( PCIREG_SHIFTOUT(reg, PCI_L1PM_CTL2_TPOSCALE)); val = PCIREG_SHIFTOUT(reg, PCI_L1PM_CTL2_TPOVAL); printf(" T_POWER_ON: "); if (scale == -1) printf("unknown\n"); else printf("%dus\n", val * scale); if (PCI_EXTCAPLIST_VERSION(regs[o2i(extcapoff)]) >= 2) { reg = regs[o2i(extcapoff + PCI_L1PM_CTL2)]; printf(" L1 PM Substates Status register: 0x%08x\n", reg); onoff("Link Activation Status", reg, PCI_L1PM_STAT_LA); } } static void pci_conf_print_ptm_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; uint32_t val; printf("\n Precision Time Measurement\n"); reg = regs[o2i(extcapoff + PCI_PTM_CAP)]; printf(" PTM Capability register: 0x%08x\n", reg); onoff("PTM Requester Capable", reg, PCI_PTM_CAP_REQ); onoff("PTM Responder Capable", reg, PCI_PTM_CAP_RESP); onoff("PTM Root Capable", reg, PCI_PTM_CAP_ROOT); printf(" Local Clock Granularity: "); val = PCIREG_SHIFTOUT(reg, PCI_PTM_CAP_LCLCLKGRNL); switch (val) { case 0: printf("Not implemented\n"); break; case 0xffff: printf("> 254ns\n"); break; default: printf("%uns\n", val); break; } reg = regs[o2i(extcapoff + PCI_PTM_CTL)]; printf(" PTM Control register: 0x%08x\n", reg); onoff("PTM Enable", reg, PCI_PTM_CTL_EN); onoff("Root Select", reg, PCI_PTM_CTL_ROOTSEL); printf(" Effective Granularity: "); val = PCIREG_SHIFTOUT(reg, PCI_PTM_CTL_EFCTGRNL); switch (val) { case 0: printf("Unknown\n"); break; case 0xffff: printf("> 254ns\n"); break; default: printf("%uns\n", val); break; } } /* XXX pci_conf_print_mpcie_cap */ /* XXX pci_conf_print_frsq_cap */ /* XXX pci_conf_print_rtr_cap */ /* XXX pci_conf_print_desigvndsp_cap */ /* XXX pci_conf_print_vf_resizbar_cap */ static void pci_conf_print_dlf_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg; printf("\n Data link Feature Register\n"); reg = regs[o2i(extcapoff + PCI_DLF_CAP)]; printf(" Capability register: 0x%08x\n", reg); onoff("Scaled Flow Control", reg, PCI_DLF_LFEAT_SCLFCTL); onoff("DLF Exchange enable", reg, PCI_DLF_CAP_XCHG); reg = regs[o2i(extcapoff + PCI_DLF_STAT)]; printf(" Status register: 0x%08x\n", reg); onoff("Scaled Flow Control", reg, PCI_DLF_LFEAT_SCLFCTL); onoff("Remote DLF supported Valid", reg, PCI_DLF_STAT_RMTVALID); } static void pci_conf_print_pl16g_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, lwidth; int pcie_capoff; unsigned int i, j; printf("\n Physical Layer 16.0 GT/s\n"); reg = regs[o2i(extcapoff + PCI_PL16G_CAP)]; printf(" Capability register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_PL16G_CTL)]; printf(" Control register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_PL16G_STAT)]; printf(" Status register: 0x%08x\n", reg); onoff("Equalization 16.0 GT/s Complete", reg, PCI_PL16G_STAT_EQ_COMPL); onoff("Equalization 16.0 GT/s Phase 1 Successful", reg, PCI_PL16G_STAT_EQ_P1S); onoff("Equalization 16.0 GT/s Phase 2 Successful", reg, PCI_PL16G_STAT_EQ_P2S); onoff("Equalization 16.0 GT/s Phase 3 Successful", reg, PCI_PL16G_STAT_EQ_P3S); reg = regs[o2i(extcapoff + PCI_PL16G_LDPMS)]; printf(" Local Data Parity Mismatch Status register: 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_PL16G_FRDPMS)]; printf(" First Retimer Data Parity Mismatch Status register:" " 0x%08x\n", reg); reg = regs[o2i(extcapoff + PCI_PL16G_SRDPMS)]; printf(" Second Retimer Data Parity Mismatch Status register:" " 0x%08x\n", reg); if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff) == 0) return; /* error */ reg = regs[o2i(pcie_capoff + PCIE_LCAP)]; lwidth = PCIREG_SHIFTOUT(reg, PCIE_LCAP_MAX_WIDTH); for (i = 0; i < lwidth;) { reg = regs[o2i(extcapoff + PCI_PL16G_LEC + i)]; for (j = 0; j < 4; j++) { pcireg_t up, down; down = reg & 0x0000000f; up = (reg >> 4) & 0x0000000f; printf(" Lane %d downstream: ", i); pci_print_pcie_link_preset_preshoot_deemphasis(down); printf("\n Lane %d upstream: ", i); pci_print_pcie_link_preset_preshoot_deemphasis(up); printf("\n"); reg >>= 8; i++; if (i >= lwidth) break; } } } static const char * const pcie_receive_number_dp[] = { [0] = ("Broadcast " "(Downstream Port Receiver and all Retimer Pseudo Port Receiver)"), [1] = "Rx(A) (Downstream Port Receiver)", [2] = "Rx(B) (Retimer X or Z Upstream Pseudo Port Receiver)", [3] = "Rx(C) (Retimer X or Z Downstream Pseudo Port Receiver)", [4] = "Rx(D) (Retimer Y Upstream Pseudo Port Receiver)", [5] = "Rx(E) (Retimer Y Downstream Pseudo Port Receiver)", [6] = "Reserved", [7] = "Reserved" }; static const char * const pcie_receive_number_up[] = { "Broadcast (Upstream Port Receiver)", "Reserved", "Reserved", "Reserved", "Reserved", "Reserved", "Rx(F) (Upstream Port Receiver)", "Reserved" }; /* * Print PCI_LMR_LANECSR. This function is used for both control and status * register. The reg argument in the lower 16bit has the control or status * register. The encoding is the same except the receive number, so use _LCTL_ * macro. */ static void pci_conf_print_lmr_lcsr(pcireg_t reg, bool up, bool dp) { int rnum; printf(" Receive Number: "); rnum = PCIREG_SHIFTOUT(reg, PCI_LMR_LCTL_RNUM); if (up) printf("%s\n", pcie_receive_number_up[rnum]); else if (dp) printf("%s\n", pcie_receive_number_dp[rnum]); else printf("%x\n", rnum); printf(" Margin Type: %x\n", PCIREG_SHIFTOUT(reg, PCI_LMR_LCTL_MTYPE)); printf(" Usage Model: %s\n", (PCIREG_SHIFTOUT(reg, PCI_LMR_LCTL_UMODEL) == 0) ? "Lane Margining at Receiver" : "Reserved Encoding"); printf(" Margin Payload: 0x%02x\n", PCIREG_SHIFTOUT(reg, PCI_LMR_LCTL_MPAYLOAD)); } static void pci_conf_print_lmr_cap(const pcireg_t *regs, int extcapoff) { pcireg_t reg, lwidth; int pcie_capoff; int pcie_devtype; unsigned int i; bool up, dp; printf("\n Lane Margining at the Receiver\n"); reg = regs[o2i(extcapoff + PCI_LMR_PCAPSTAT)]; printf(" Port Capability register: 0x%04x\n", reg & 0xffff); onoff("Margining uses Driver Software", reg, PCI_LMR_PCAP_MUDS); printf(" Port Status register: 0x%04x\n", (reg >> 16) & 0xffff); onoff("Margining Ready", reg, PCI_LMR_PSTAT_MR); onoff("Margining Software Ready", reg, PCI_LMR_PSTAT_MSR); if (pci_conf_find_cap(regs, PCI_CAP_PCIEXPRESS, &pcie_capoff) == 0) return; /* error */ up = dp = false; reg = regs[o2i(pcie_capoff)]; pcie_devtype = PCIE_XCAP_TYPE(reg); switch (pcie_devtype) { case PCIE_XCAP_TYPE_PCIE_DEV: /* 0x0 */ case PCIE_XCAP_TYPE_PCI_DEV: /* 0x1 */ case PCIE_XCAP_TYPE_UP: /* 0x5 */ case PCIE_XCAP_TYPE_PCIE2PCI: /* 0x7 */ up = true; break; case PCIE_XCAP_TYPE_RP: /* 0x4 */ case PCIE_XCAP_TYPE_DOWN: /* 0x6 */ dp = true; break; default: printf("neither upstream nor downstream?(%x)\n", pcie_devtype); break; } reg = regs[o2i(pcie_capoff + PCIE_LCAP)]; lwidth = PCIREG_SHIFTOUT(reg, PCIE_LCAP_MAX_WIDTH); for (i = 0; i < lwidth; i++) { pcireg_t lctl, lstat; reg = regs[o2i(extcapoff + PCI_LMR_LANECSR + (i * 4))]; lctl = reg & 0xffff; printf(" Lane %d control: 0x%04x\n", i, lctl); pci_conf_print_lmr_lcsr(lctl, up, dp); lstat = (reg >> 16) & 0xffff; printf(" Lane %d status: 0x%04x\n", i, lstat); pci_conf_print_lmr_lcsr(lstat, up, dp); } } /* XXX pci_conf_print_hierarchyid_cap */ /* XXX pci_conf_print_npem_cap */ #undef MS #undef SM #undef RW static struct { pcireg_t cap; const char *name; void (*printfunc)(const pcireg_t *, int); } pci_extcaptab[] = { { 0, "reserved", NULL }, { PCI_EXTCAP_AER, "Advanced Error Reporting", pci_conf_print_aer_cap }, { PCI_EXTCAP_VC, "Virtual Channel", pci_conf_print_vc_cap }, { PCI_EXTCAP_SERNUM, "Device Serial Number", pci_conf_print_sernum_cap }, { PCI_EXTCAP_PWRBDGT, "Power Budgeting", pci_conf_print_pwrbdgt_cap }, { PCI_EXTCAP_RCLINK_DCL,"Root Complex Link Declaration", pci_conf_print_rclink_dcl_cap }, { PCI_EXTCAP_RCLINK_CTL,"Root Complex Internal Link Control", NULL }, { PCI_EXTCAP_RCEC_ASSOC,"Root Complex Event Collector Association", pci_conf_print_rcec_assoc_cap }, { PCI_EXTCAP_MFVC, "Multi-Function Virtual Channel", NULL }, { PCI_EXTCAP_VC2, "Virtual Channel", NULL }, { PCI_EXTCAP_RCRB, "RCRB Header", NULL }, { PCI_EXTCAP_VENDOR, "Vendor Unique", NULL }, { PCI_EXTCAP_CAC, "Configuration Access Correction", NULL }, { PCI_EXTCAP_ACS, "Access Control Services", pci_conf_print_acs_cap }, { PCI_EXTCAP_ARI, "Alternative Routing-ID Interpretation", pci_conf_print_ari_cap }, { PCI_EXTCAP_ATS, "Address Translation Services", pci_conf_print_ats_cap }, { PCI_EXTCAP_SRIOV, "Single Root IO Virtualization", pci_conf_print_sriov_cap }, { PCI_EXTCAP_MRIOV, "Multiple Root IO Virtualization", NULL }, { PCI_EXTCAP_MCAST, "Multicast", pci_conf_print_multicast_cap }, { PCI_EXTCAP_PAGE_REQ, "Page Request", pci_conf_print_page_req_cap }, { PCI_EXTCAP_AMD, "Reserved for AMD", NULL }, { PCI_EXTCAP_RESIZBAR, "Resizable BAR", pci_conf_print_resizbar_cap }, { PCI_EXTCAP_DPA, "Dynamic Power Allocation", pci_conf_print_dpa_cap }, { PCI_EXTCAP_TPH_REQ, "TPH Requester", pci_conf_print_tph_req_cap }, { PCI_EXTCAP_LTR, "Latency Tolerance Reporting", pci_conf_print_ltr_cap }, { PCI_EXTCAP_SEC_PCIE, "Secondary PCI Express", pci_conf_print_sec_pcie_cap }, { PCI_EXTCAP_PMUX, "Protocol Multiplexing", NULL }, { PCI_EXTCAP_PASID, "Process Address Space ID", pci_conf_print_pasid_cap }, { PCI_EXTCAP_LNR, "LN Requester", pci_conf_print_lnr_cap }, { PCI_EXTCAP_DPC, "Downstream Port Containment", pci_conf_print_dpc_cap }, { PCI_EXTCAP_L1PM, "L1 PM Substates", pci_conf_print_l1pm_cap }, { PCI_EXTCAP_PTM, "Precision Time Measurement", pci_conf_print_ptm_cap }, { PCI_EXTCAP_MPCIE, "M-PCIe", NULL }, { PCI_EXTCAP_FRSQ, "Function Reading Status Queueing", NULL }, { PCI_EXTCAP_RTR, "Readiness Time Reporting", NULL }, { PCI_EXTCAP_DESIGVNDSP, "Designated Vendor-Specific", NULL }, { PCI_EXTCAP_VF_RESIZBAR, "VF Resizable BARs", NULL }, { PCI_EXTCAP_DLF, "Data link Feature", pci_conf_print_dlf_cap }, { PCI_EXTCAP_PL16G, "Physical Layer 16.0 GT/s", pci_conf_print_pl16g_cap }, { PCI_EXTCAP_LMR, "Lane Margining at the Receiver", pci_conf_print_lmr_cap }, { PCI_EXTCAP_HIERARCHYID, "Hierarchy ID", NULL }, { PCI_EXTCAP_NPEM, "Native PCIe Enclosure Management", NULL }, { PCI_EXTCAP_PL32G, "Physical Layer 32.0 GT/s", NULL }, { PCI_EXTCAP_AP, "Alternate Protocol", NULL }, { PCI_EXTCAP_SFI, "System Firmware Intermediary", NULL }, }; static int pci_conf_find_extcap(const pcireg_t *regs, unsigned int capid, int *offsetp) { int off; pcireg_t rval; for (off = PCI_EXTCAPLIST_BASE; off != 0; off = PCI_EXTCAPLIST_NEXT(rval)) { rval = regs[o2i(off)]; if (capid == PCI_EXTCAPLIST_CAP(rval)) { if (offsetp != NULL) *offsetp = off; return 1; } } return 0; } static void pci_conf_print_extcaplist( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs) { int off; pcireg_t foundcap; pcireg_t rval; bool foundtable[__arraycount(pci_extcaptab)]; unsigned int i; /* Check Extended capability structure */ off = PCI_EXTCAPLIST_BASE; rval = regs[o2i(off)]; if (rval == 0xffffffff || rval == 0) return; /* Clear table */ for (i = 0; i < __arraycount(pci_extcaptab); i++) foundtable[i] = false; /* Print extended capability register's offset and the type first */ for (;;) { printf(" Extended Capability Register at 0x%02x\n", off); foundcap = PCI_EXTCAPLIST_CAP(rval); printf(" type: 0x%04x (", foundcap); if (foundcap < __arraycount(pci_extcaptab)) { printf("%s)\n", pci_extcaptab[foundcap].name); /* Mark as found */ foundtable[foundcap] = true; } else printf("unknown)\n"); printf(" version: %d\n", PCI_EXTCAPLIST_VERSION(rval)); off = PCI_EXTCAPLIST_NEXT(rval); if (off == 0) break; else if (off <= PCI_CONF_SIZE) { printf(" next pointer: 0x%03x (incorrect)\n", off); return; } rval = regs[o2i(off)]; } /* * And then, print the detail of each capability registers * in capability value's order. */ for (i = 0; i < __arraycount(pci_extcaptab); i++) { if (foundtable[i] == false) continue; /* * The type was found. Search capability list again and * print all capabilities that the capability type is * the same. */ if (pci_conf_find_extcap(regs, i, &off) == 0) continue; rval = regs[o2i(off)]; if ((PCI_EXTCAPLIST_VERSION(rval) <= 0) || (pci_extcaptab[i].printfunc == NULL)) continue; pci_extcaptab[i].printfunc(regs, off); } } /* Print the Secondary Status Register. */ static void pci_conf_print_ssr(pcireg_t rval) { pcireg_t devsel; printf(" Secondary status register: 0x%04x\n", rval); /* XXX bits */ onoff("66 MHz capable", rval, __BIT(5)); onoff("User Definable Features (UDF) support", rval, __BIT(6)); onoff("Fast back-to-back capable", rval, __BIT(7)); onoff("Data parity error detected", rval, __BIT(8)); printf(" DEVSEL timing: "); devsel = PCIREG_SHIFTOUT(rval, __BITS(10, 9)); switch (devsel) { case 0: printf("fast"); break; case 1: printf("medium"); break; case 2: printf("slow"); break; default: printf("unknown/reserved"); /* XXX */ break; } printf(" (0x%x)\n", devsel); onoff("Signalled target abort", rval, __BIT(11)); onoff("Received target abort", rval, __BIT(12)); onoff("Received master abort", rval, __BIT(13)); onoff("Received system error", rval, __BIT(14)); onoff("Detected parity error", rval, __BIT(15)); } static void pci_conf_print_type0( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs) { int off, width; pcireg_t rval; const char *str; for (off = PCI_MAPREG_START; off < PCI_MAPREG_END; off += width) { #ifdef _KERNEL width = pci_conf_print_bar(pc, tag, regs, off, NULL); #else width = pci_conf_print_bar(regs, off, NULL); #endif } printf(" Cardbus CIS Pointer: 0x%08x\n", regs[o2i(PCI_CARDBUS_CIS_REG)]); 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)); rval = regs[o2i(PCI_MAPREG_ROM)]; printf(" Expansion ROM Base Address Register: 0x%08x\n", rval); printf(" base: 0x%08x\n", (uint32_t)PCI_MAPREG_ROM_ADDR(rval)); onoff("Expansion ROM Enable", rval, PCI_MAPREG_ROM_ENABLE); printf(" Validation Status: "); switch (PCIREG_SHIFTOUT(rval, PCI_MAPREG_ROM_VALID_STAT)) { case PCI_MAPREG_ROM_VSTAT_NOTSUPP: str = "Validation not supported"; break; case PCI_MAPREG_ROM_VSTAT_INPROG: str = "Validation in Progress"; break; case PCI_MAPREG_ROM_VSTAT_VPASS: str = "Validation Pass. " "Valid contents, trust test was not performed"; break; case PCI_MAPREG_ROM_VSTAT_VPASSTRUST: str = "Validation Pass. Valid and trusted contents"; break; case PCI_MAPREG_ROM_VSTAT_VFAIL: str = "Validation Fail. Invalid contents"; break; case PCI_MAPREG_ROM_VSTAT_VFAILUNTRUST: str = "Validation Fail. Valid but untrusted contents"; break; case PCI_MAPREG_ROM_VSTAT_WPASS: str = "Warning Pass. Validation passed with warning. " "Valid contents, trust test was not performed"; break; case PCI_MAPREG_ROM_VSTAT_WPASSTRUST: str = "Warning Pass. Validation passed with warning. " "Valid and trusted contents"; break; } printf("%s\n", str); printf(" Validation Details: 0x%x\n", PCIREG_SHIFTOUT(rval, PCI_MAPREG_ROM_VALID_DETAIL)); 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", PCI_MAX_LAT(rval)); printf(" Minimum Grant: 0x%02x\n", PCI_MIN_GNT(rval)); 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_type1( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs) { int off, width; pcireg_t rval, csreg; uint32_t base, limit; uint32_t base_h, limit_h; uint64_t pbase, plimit; int use_upper; /* * 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); #else width = pci_conf_print_bar(regs, off, NULL); #endif } rval = regs[o2i(PCI_BRIDGE_BUS_REG)]; printf(" Primary bus number: 0x%02x\n", PCI_BRIDGE_BUS_NUM_PRIMARY(rval)); printf(" Secondary bus number: 0x%02x\n", PCI_BRIDGE_BUS_NUM_SECONDARY(rval)); printf(" Subordinate bus number: 0x%02x\n", PCI_BRIDGE_BUS_NUM_SUBORDINATE(rval)); printf(" Secondary bus latency timer: 0x%02x\n", PCI_BRIDGE_BUS_SEC_LATTIMER_VAL(rval)); rval = regs[o2i(PCI_BRIDGE_STATIO_REG)]; pci_conf_print_ssr(PCIREG_SHIFTOUT(rval, __BITS(31, 16))); /* I/O region */ printf(" I/O region:\n"); printf(" base register: 0x%02x\n", (rval >> 0) & 0xff); printf(" limit register: 0x%02x\n", (rval >> 8) & 0xff); if (PCI_BRIDGE_IO_32BITS(rval)) use_upper = 1; else use_upper = 0; onoff("32bit I/O", rval, use_upper); base = PCI_BRIDGE_STATIO_IOBASE_ADDR(rval); limit = PCI_BRIDGE_STATIO_IOLIMIT_ADDR(rval); rval = regs[o2i(PCI_BRIDGE_IOHIGH_REG)]; base_h = PCIREG_SHIFTOUT(rval, PCI_BRIDGE_IOHIGH_BASE); limit_h = PCIREG_SHIFTOUT(rval, PCI_BRIDGE_IOHIGH_LIMIT); printf(" base upper 16 bits register: 0x%04x\n", base_h); printf(" limit upper 16 bits register: 0x%04x\n", limit_h); if (use_upper == 1) { base |= base_h << 16; limit |= limit_h << 16; } if (base < limit) { if (use_upper == 1) printf(" range: 0x%08x-0x%08x\n", base, limit); else printf(" range: 0x%04x-0x%04x\n", base, limit); } else printf(" range: not set\n"); /* Non-prefetchable memory region */ rval = regs[o2i(PCI_BRIDGE_MEMORY_REG)]; printf(" Memory region:\n"); printf(" base register: 0x%04hx\n", (uint16_t)PCIREG_SHIFTOUT(rval, PCI_BRIDGE_MEMORY_BASE)); printf(" limit register: 0x%04hx\n", (uint16_t)PCIREG_SHIFTOUT(rval, PCI_BRIDGE_MEMORY_LIMIT)); base = PCI_BRIDGE_MEMORY_BASE_ADDR(rval); limit = PCI_BRIDGE_MEMORY_LIMIT_ADDR(rval); if (base < limit) printf(" range: 0x%08x-0x%08x\n", base, limit); else printf(" range: not set\n"); /* Prefetchable memory region */ rval = regs[o2i(PCI_BRIDGE_PREFETCHMEM_REG)]; printf(" Prefetchable memory region:\n"); printf(" base register: 0x%04x\n", (rval >> 0) & 0xffff); printf(" limit register: 0x%04x\n", (rval >> 16) & 0xffff); base_h = regs[o2i(PCI_BRIDGE_PREFETCHBASEUP32_REG)]; limit_h = regs[o2i(PCI_BRIDGE_PREFETCHLIMITUP32_REG)]; printf(" base upper 32 bits register: 0x%08x\n", base_h); printf(" limit upper 32 bits register: 0x%08x\n", limit_h); if (PCI_BRIDGE_PREFETCHMEM_64BITS(rval)) use_upper = 1; else use_upper = 0; onoff("64bit memory address", rval, use_upper); pbase = PCI_BRIDGE_PREFETCHMEM_BASE_ADDR(rval); plimit = PCI_BRIDGE_PREFETCHMEM_LIMIT_ADDR(rval); if (use_upper == 1) { pbase |= (uint64_t)base_h << 32; plimit |= (uint64_t)limit_h << 32; } if (pbase < plimit) { if (use_upper == 1) printf(" range: 0x%016" PRIx64 "-0x%016" PRIx64 "\n", pbase, plimit); else printf(" range: 0x%08x-0x%08x\n", (uint32_t)pbase, (uint32_t)plimit); } else printf(" range: not set\n"); csreg = regs[o2i(PCI_COMMAND_STATUS_REG)]; if (csreg & 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(" Expansion ROM Base Address: 0x%08x\n", regs[o2i(PCI_BRIDGE_EXPROMADDR_REG)]); rval = regs[o2i(PCI_INTERRUPT_REG)]; printf(" Interrupt line: 0x%02x\n", (rval >> 0) & 0xff); printf(" Interrupt pin: 0x%02x ", (rval >> 8) & 0xff); switch ((rval >> 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(PCI_BRIDGE_CONTROL_REG)]; printf(" Bridge control register: 0x%04hx\n", (uint16_t)PCIREG_SHIFTOUT(rval, PCI_BRIDGE_CONTROL)); onoff("Parity error response", rval, PCI_BRIDGE_CONTROL_PERE); onoff("Secondary SERR forwarding", rval, PCI_BRIDGE_CONTROL_SERR); onoff("ISA enable", rval, PCI_BRIDGE_CONTROL_ISA); onoff("VGA enable", rval, PCI_BRIDGE_CONTROL_VGA); /* * VGA 16bit decode bit has meaning if the VGA enable bit or the * VGA Palette Snoop Enable bit is set. */ if (((rval & PCI_BRIDGE_CONTROL_VGA) != 0) || ((csreg & PCI_COMMAND_PALETTE_ENABLE) != 0)) onoff("VGA 16bit enable", rval, PCI_BRIDGE_CONTROL_VGA16); onoff("Master abort reporting", rval, PCI_BRIDGE_CONTROL_MABRT); onoff("Secondary bus reset", rval, PCI_BRIDGE_CONTROL_SECBR); onoff("Fast back-to-back enable", rval, PCI_BRIDGE_CONTROL_SECFASTB2B); onoff("Primary Discard Timer", rval, PCI_BRIDGE_CONTROL_PRI_DISC_TIMER); onoff("Secondary Discard Timer", rval, PCI_BRIDGE_CONTROL_SEC_DISC_TIMER); onoff("Discard Timer Status", rval, PCI_BRIDGE_CONTROL_DISC_TIMER_STAT); onoff("Discard Timer SERR# Enable", rval, PCI_BRIDGE_CONTROL_DISC_TIMER_SERR); } static void pci_conf_print_type2( #ifdef _KERNEL pci_chipset_tag_t pc, pcitag_t tag, #endif const pcireg_t *regs) { 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 PCI1420 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"); #else pci_conf_print_bar(regs, 0x10, "CardBus socket/ExCA registers"); #endif /* Capability list pointer and secondary status register */ rval = regs[o2i(PCI_CARDBUS_CAPLISTPTR_REG)]; if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) printf(" Capability list pointer: 0x%02x\n", PCI_CAPLIST_PTR(rval)); else printf(" Reserved @ 0x14: 0x%04x\n", PCIREG_SHIFTOUT(rval, __BITS(15, 0))); pci_conf_print_ssr(PCIREG_SHIFTOUT(rval, __BITS(31, 16))); rval = regs[o2i(PCI_BRIDGE_BUS_REG)]; printf(" PCI bus number: 0x%02x\n", (rval >> 0) & 0xff); printf(" CardBus bus number: 0x%02x\n", (rval >> 8) & 0xff); printf(" Subordinate bus number: 0x%02x\n", (rval >> 16) & 0xff); printf(" CardBus latency timer: 0x%02x\n", (rval >> 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)]); rval = regs[o2i(PCI_INTERRUPT_REG)]; printf(" Interrupt line: 0x%02x\n", (rval >> 0) & 0xff); printf(" Interrupt pin: 0x%02x ", (rval >> 8) & 0xff); switch ((rval >> 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(PCI_BRIDGE_CONTROL_REG)] >> 16) & 0xffff; printf(" Bridge control register: 0x%04x\n", rval); onoff("Parity error response", rval, __BIT(0)); onoff("SERR# enable", rval, __BIT(1)); onoff("ISA enable", rval, __BIT(2)); onoff("VGA enable", rval, __BIT(3)); onoff("Master abort mode", rval, __BIT(5)); onoff("Secondary (CardBus) bus reset", rval, __BIT(6)); onoff("Functional interrupts routed by ExCA registers", rval, __BIT(7)); onoff("Memory window 0 prefetchable", rval, __BIT(8)); onoff("Memory window 1 prefetchable", rval, __BIT(9)); onoff("Write posting enable", rval, __BIT(10)); 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"); #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; int off, capoff, endoff, hdrtype; const char *type_name; #ifdef _KERNEL void (*type_printfn)(pci_chipset_tag_t, pcitag_t, const pcireg_t *); #else void (*type_printfn)(const pcireg_t *); #endif regs = MALLOC(PCI_EXTCONF_SIZE); printf("PCI configuration registers:\n"); for (off = 0; off < PCI_EXTCONF_SIZE; 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 } /* 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 */ type_name = "\"normal\" device"; type_printfn = &pci_conf_print_type0; capoff = PCI_CAPLISTPTR_REG; endoff = 64; break; case 1: /* PCI-PCI bridge header */ type_name = "PCI-PCI bridge"; type_printfn = &pci_conf_print_type1; capoff = PCI_CAPLISTPTR_REG; endoff = 64; break; case 2: /* PCI-CardBus bridge header */ type_name = "PCI-CardBus bridge"; type_printfn = &pci_conf_print_type2; capoff = PCI_CARDBUS_CAPLISTPTR_REG; endoff = 72; break; default: type_name = NULL; type_printfn = 0; capoff = -1; endoff = 64; break; } printf(" Type %d ", hdrtype); if (type_name != NULL) printf("(%s) ", type_name); printf("header:\n"); pci_conf_print_regs(regs, 16, endoff); printf("\n"); if (type_printfn) { #ifdef _KERNEL (*type_printfn)(pc, tag, regs); #else (*type_printfn)(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, PCI_CONF_SIZE); #ifdef _KERNEL printf("\n"); if (printfn) (*printfn)(pc, tag, regs); else printf(" Don't know how to pretty-print device-dependent header.\n"); #endif /* _KERNEL */ if (regs[o2i(PCI_EXTCAPLIST_BASE)] == 0xffffffff || regs[o2i(PCI_EXTCAPLIST_BASE)] == 0) goto out; printf("\n"); #ifdef _KERNEL pci_conf_print_extcaplist(pc, tag, regs); #else pci_conf_print_extcaplist(regs); #endif printf("\n"); /* Extended Configuration Space, if present */ printf(" Extended Configuration Space:\n"); pci_conf_print_regs(regs, PCI_EXTCAPLIST_BASE, PCI_EXTCONF_SIZE); out: FREE(regs, PCI_EXTCONF_SIZE); }