1/* 2 * pci_regs.h 3 * 4 * PCI standard defines 5 * Copyright 1994, Drew Eckhardt 6 * Copyright 1997--1999 Martin Mares <mj@ucw.cz> 7 * 8 * For more information, please consult the following manuals (look at 9 * http://www.pcisig.com/ for how to get them): 10 * 11 * PCI BIOS Specification 12 * PCI Local Bus Specification 13 * PCI to PCI Bridge Specification 14 * PCI System Design Guide 15 * 16 * For hypertransport information, please consult the following manuals 17 * from http://www.hypertransport.org 18 * 19 * The Hypertransport I/O Link Specification 20 */ 21 22#ifndef LINUX_PCI_REGS_H 23#define LINUX_PCI_REGS_H 24 25/* 26 * Under PCI, each device has 256 bytes of configuration address space, 27 * of which the first 64 bytes are standardized as follows: 28 */ 29#define PCI_VENDOR_ID 0x00 /* 16 bits */ 30#define PCI_DEVICE_ID 0x02 /* 16 bits */ 31#define PCI_COMMAND 0x04 /* 16 bits */ 32#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */ 33#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */ 34#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */ 35#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */ 36#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */ 37#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */ 38#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */ 39#define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */ 40#define PCI_COMMAND_SERR 0x100 /* Enable SERR */ 41#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */ 42#define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */ 43 44#define PCI_STATUS 0x06 /* 16 bits */ 45#define PCI_STATUS_INTERRUPT 0x08 /* Interrupt status */ 46#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */ 47#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */ 48#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */ 49#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */ 50#define PCI_STATUS_PARITY 0x100 /* Detected parity error */ 51#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */ 52#define PCI_STATUS_DEVSEL_FAST 0x000 53#define PCI_STATUS_DEVSEL_MEDIUM 0x200 54#define PCI_STATUS_DEVSEL_SLOW 0x400 55#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */ 56#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */ 57#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */ 58#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */ 59#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */ 60 61#define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 revision */ 62#define PCI_REVISION_ID 0x08 /* Revision ID */ 63#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */ 64#define PCI_CLASS_DEVICE 0x0a /* Device class */ 65 66#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */ 67#define PCI_LATENCY_TIMER 0x0d /* 8 bits */ 68#define PCI_HEADER_TYPE 0x0e /* 8 bits */ 69#define PCI_HEADER_TYPE_NORMAL 0 70#define PCI_HEADER_TYPE_BRIDGE 1 71#define PCI_HEADER_TYPE_CARDBUS 2 72 73#define PCI_BIST 0x0f /* 8 bits */ 74#define PCI_BIST_CODE_MASK 0x0f /* Return result */ 75#define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */ 76#define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */ 77 78/* 79 * Base addresses specify locations in memory or I/O space. 80 * Decoded size can be determined by writing a value of 81 * 0xffffffff to the register, and reading it back. Only 82 * 1 bits are decoded. 83 */ 84#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */ 85#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */ 86#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */ 87#define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */ 88#define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */ 89#define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */ 90#define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */ 91#define PCI_BASE_ADDRESS_SPACE_IO 0x01 92#define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00 93#define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06 94#define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */ 95#define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */ 96#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */ 97#define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */ 98#define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL) 99#define PCI_BASE_ADDRESS_IO_MASK (~0x03UL) 100/* bit 1 is reserved if address_space = 1 */ 101 102/* Header type 0 (normal devices) */ 103#define PCI_CARDBUS_CIS 0x28 104#define PCI_SUBSYSTEM_VENDOR_ID 0x2c 105#define PCI_SUBSYSTEM_ID 0x2e 106#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ 107#define PCI_ROM_ADDRESS_ENABLE 0x01 108#define PCI_ROM_ADDRESS_MASK (~0x7ffUL) 109 110#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */ 111 112/* 0x35-0x3b are reserved */ 113#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ 114#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ 115#define PCI_MIN_GNT 0x3e /* 8 bits */ 116#define PCI_MAX_LAT 0x3f /* 8 bits */ 117 118/* Header type 1 (PCI-to-PCI bridges) */ 119#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */ 120#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */ 121#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */ 122#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */ 123#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */ 124#define PCI_IO_LIMIT 0x1d 125#define PCI_IO_RANGE_TYPE_MASK 0x0fUL /* I/O bridging type */ 126#define PCI_IO_RANGE_TYPE_16 0x00 127#define PCI_IO_RANGE_TYPE_32 0x01 128#define PCI_IO_RANGE_MASK (~0x0fUL) 129#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */ 130#define PCI_MEMORY_BASE 0x20 /* Memory range behind */ 131#define PCI_MEMORY_LIMIT 0x22 132#define PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL 133#define PCI_MEMORY_RANGE_MASK (~0x0fUL) 134#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */ 135#define PCI_PREF_MEMORY_LIMIT 0x26 136#define PCI_PREF_RANGE_TYPE_MASK 0x0fUL 137#define PCI_PREF_RANGE_TYPE_32 0x00 138#define PCI_PREF_RANGE_TYPE_64 0x01 139#define PCI_PREF_RANGE_MASK (~0x0fUL) 140#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */ 141#define PCI_PREF_LIMIT_UPPER32 0x2c 142#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */ 143#define PCI_IO_LIMIT_UPPER16 0x32 144/* 0x34 same as for htype 0 */ 145/* 0x35-0x3b is reserved */ 146#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */ 147/* 0x3c-0x3d are same as for htype 0 */ 148#define PCI_BRIDGE_CONTROL 0x3e 149#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */ 150#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */ 151#define PCI_BRIDGE_CTL_ISA 0x04 /* Enable ISA mode */ 152#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */ 153#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */ 154#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */ 155#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */ 156 157/* Header type 2 (CardBus bridges) */ 158#define PCI_CB_CAPABILITY_LIST 0x14 159/* 0x15 reserved */ 160#define PCI_CB_SEC_STATUS 0x16 /* Secondary status */ 161#define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */ 162#define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */ 163#define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */ 164#define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */ 165#define PCI_CB_MEMORY_BASE_0 0x1c 166#define PCI_CB_MEMORY_LIMIT_0 0x20 167#define PCI_CB_MEMORY_BASE_1 0x24 168#define PCI_CB_MEMORY_LIMIT_1 0x28 169#define PCI_CB_IO_BASE_0 0x2c 170#define PCI_CB_IO_BASE_0_HI 0x2e 171#define PCI_CB_IO_LIMIT_0 0x30 172#define PCI_CB_IO_LIMIT_0_HI 0x32 173#define PCI_CB_IO_BASE_1 0x34 174#define PCI_CB_IO_BASE_1_HI 0x36 175#define PCI_CB_IO_LIMIT_1 0x38 176#define PCI_CB_IO_LIMIT_1_HI 0x3a 177#define PCI_CB_IO_RANGE_MASK (~0x03UL) 178/* 0x3c-0x3d are same as for htype 0 */ 179#define PCI_CB_BRIDGE_CONTROL 0x3e 180#define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */ 181#define PCI_CB_BRIDGE_CTL_SERR 0x02 182#define PCI_CB_BRIDGE_CTL_ISA 0x04 183#define PCI_CB_BRIDGE_CTL_VGA 0x08 184#define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20 185#define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */ 186#define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */ 187#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */ 188#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200 189#define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400 190#define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40 191#define PCI_CB_SUBSYSTEM_ID 0x42 192#define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */ 193/* 0x48-0x7f reserved */ 194 195/* Capability lists */ 196 197#define PCI_CAP_LIST_ID 0 /* Capability ID */ 198#define PCI_CAP_ID_PM 0x01 /* Power Management */ 199#define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */ 200#define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */ 201#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */ 202#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ 203#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ 204#define PCI_CAP_ID_PCIX 0x07 /* PCI-X */ 205#define PCI_CAP_ID_HT 0x08 /* HyperTransport */ 206#define PCI_CAP_ID_VNDR 0x09 /* Vendor specific */ 207#define PCI_CAP_ID_DBG 0x0A /* Debug port */ 208#define PCI_CAP_ID_CCRC 0x0B /* CompactPCI Central Resource Control */ 209#define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */ 210#define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */ 211#define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */ 212#define PCI_CAP_ID_EXP 0x10 /* PCI Express */ 213#define PCI_CAP_ID_MSIX 0x11 /* MSI-X */ 214#define PCI_CAP_ID_AF 0x13 /* PCI Advanced Features */ 215#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */ 216#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */ 217#define PCI_CAP_SIZEOF 4 218 219/* Power Management Registers */ 220 221#define PCI_PM_PMC 2 /* PM Capabilities Register */ 222#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */ 223#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */ 224#define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */ 225#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */ 226#define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxilliary power support mask */ 227#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */ 228#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */ 229#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */ 230#define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */ 231#define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */ 232#define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */ 233#define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */ 234#define PCI_PM_CAP_PME_D3 0x4000 /* PME# from D3 (hot) */ 235#define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */ 236#define PCI_PM_CAP_PME_SHIFT 11 /* Start of the PME Mask in PMC */ 237#define PCI_PM_CTRL 4 /* PM control and status register */ 238#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */ 239#define PCI_PM_CTRL_NO_SOFT_RESET 0x0008 /* No reset for D3hot->D0 */ 240#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */ 241#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */ 242#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */ 243#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */ 244#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */ 245#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */ 246#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */ 247#define PCI_PM_DATA_REGISTER 7 /* (??) */ 248#define PCI_PM_SIZEOF 8 249 250/* AGP registers */ 251 252#define PCI_AGP_VERSION 2 /* BCD version number */ 253#define PCI_AGP_RFU 3 /* Rest of capability flags */ 254#define PCI_AGP_STATUS 4 /* Status register */ 255#define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */ 256#define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */ 257#define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */ 258#define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */ 259#define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */ 260#define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */ 261#define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */ 262#define PCI_AGP_COMMAND 8 /* Control register */ 263#define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */ 264#define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */ 265#define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */ 266#define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */ 267#define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */ 268#define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */ 269#define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */ 270#define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */ 271#define PCI_AGP_SIZEOF 12 272 273/* Vital Product Data */ 274 275#define PCI_VPD_ADDR 2 /* Address to access (15 bits!) */ 276#define PCI_VPD_ADDR_MASK 0x7fff /* Address mask */ 277#define PCI_VPD_ADDR_F 0x8000 /* Write 0, 1 indicates completion */ 278#define PCI_VPD_DATA 4 /* 32-bits of data returned here */ 279 280/* Slot Identification */ 281 282#define PCI_SID_ESR 2 /* Expansion Slot Register */ 283#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */ 284#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */ 285#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */ 286 287/* Message Signalled Interrupts registers */ 288 289#define PCI_MSI_FLAGS 2 /* Various flags */ 290#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */ 291#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */ 292#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */ 293#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */ 294#define PCI_MSI_FLAGS_MASKBIT 0x100 /* 64-bit mask bits allowed */ 295#define PCI_MSI_RFU 3 /* Rest of capability flags */ 296#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */ 297#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */ 298#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */ 299#define PCI_MSI_MASK_32 12 /* Mask bits register for 32-bit devices */ 300#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ 301#define PCI_MSI_MASK_64 16 /* Mask bits register for 64-bit devices */ 302 303/* MSI-X registers (these are at offset PCI_MSIX_FLAGS) */ 304#define PCI_MSIX_FLAGS 2 305#define PCI_MSIX_FLAGS_QSIZE 0x7FF 306#define PCI_MSIX_FLAGS_ENABLE (1 << 15) 307#define PCI_MSIX_FLAGS_MASKALL (1 << 14) 308#define PCI_MSIX_FLAGS_BIRMASK (7 << 0) 309 310/* CompactPCI Hotswap Register */ 311 312#define PCI_CHSWP_CSR 2 /* Control and Status Register */ 313#define PCI_CHSWP_DHA 0x01 /* Device Hiding Arm */ 314#define PCI_CHSWP_EIM 0x02 /* ENUM# Signal Mask */ 315#define PCI_CHSWP_PIE 0x04 /* Pending Insert or Extract */ 316#define PCI_CHSWP_LOO 0x08 /* LED On / Off */ 317#define PCI_CHSWP_PI 0x30 /* Programming Interface */ 318#define PCI_CHSWP_EXT 0x40 /* ENUM# status - extraction */ 319#define PCI_CHSWP_INS 0x80 /* ENUM# status - insertion */ 320 321/* PCI Advanced Feature registers */ 322 323#define PCI_AF_LENGTH 2 324#define PCI_AF_CAP 3 325#define PCI_AF_CAP_TP 0x01 326#define PCI_AF_CAP_FLR 0x02 327#define PCI_AF_CTRL 4 328#define PCI_AF_CTRL_FLR 0x01 329#define PCI_AF_STATUS 5 330#define PCI_AF_STATUS_TP 0x01 331 332/* PCI-X registers */ 333 334#define PCI_X_CMD 2 /* Modes & Features */ 335#define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */ 336#define PCI_X_CMD_ERO 0x0002 /* Enable Relaxed Ordering */ 337#define PCI_X_CMD_READ_512 0x0000 /* 512 byte maximum read byte count */ 338#define PCI_X_CMD_READ_1K 0x0004 /* 1Kbyte maximum read byte count */ 339#define PCI_X_CMD_READ_2K 0x0008 /* 2Kbyte maximum read byte count */ 340#define PCI_X_CMD_READ_4K 0x000c /* 4Kbyte maximum read byte count */ 341#define PCI_X_CMD_MAX_READ 0x000c /* Max Memory Read Byte Count */ 342 /* Max # of outstanding split transactions */ 343#define PCI_X_CMD_SPLIT_1 0x0000 /* Max 1 */ 344#define PCI_X_CMD_SPLIT_2 0x0010 /* Max 2 */ 345#define PCI_X_CMD_SPLIT_3 0x0020 /* Max 3 */ 346#define PCI_X_CMD_SPLIT_4 0x0030 /* Max 4 */ 347#define PCI_X_CMD_SPLIT_8 0x0040 /* Max 8 */ 348#define PCI_X_CMD_SPLIT_12 0x0050 /* Max 12 */ 349#define PCI_X_CMD_SPLIT_16 0x0060 /* Max 16 */ 350#define PCI_X_CMD_SPLIT_32 0x0070 /* Max 32 */ 351#define PCI_X_CMD_MAX_SPLIT 0x0070 /* Max Outstanding Split Transactions */ 352#define PCI_X_CMD_VERSION(x) (((x) >> 12) & 3) /* Version */ 353#define PCI_X_STATUS 4 /* PCI-X capabilities */ 354#define PCI_X_STATUS_DEVFN 0x000000ff /* A copy of devfn */ 355#define PCI_X_STATUS_BUS 0x0000ff00 /* A copy of bus nr */ 356#define PCI_X_STATUS_64BIT 0x00010000 /* 64-bit device */ 357#define PCI_X_STATUS_133MHZ 0x00020000 /* 133 MHz capable */ 358#define PCI_X_STATUS_SPL_DISC 0x00040000 /* Split Completion Discarded */ 359#define PCI_X_STATUS_UNX_SPL 0x00080000 /* Unexpected Split Completion */ 360#define PCI_X_STATUS_COMPLEX 0x00100000 /* Device Complexity */ 361#define PCI_X_STATUS_MAX_READ 0x00600000 /* Designed Max Memory Read Count */ 362#define PCI_X_STATUS_MAX_SPLIT 0x03800000 /* Designed Max Outstanding Split Transactions */ 363#define PCI_X_STATUS_MAX_CUM 0x1c000000 /* Designed Max Cumulative Read Size */ 364#define PCI_X_STATUS_SPL_ERR 0x20000000 /* Rcvd Split Completion Error Msg */ 365#define PCI_X_STATUS_266MHZ 0x40000000 /* 266 MHz capable */ 366#define PCI_X_STATUS_533MHZ 0x80000000 /* 533 MHz capable */ 367 368/* PCI Bridge Subsystem ID registers */ 369 370#define PCI_SSVID_VENDOR_ID 4 /* PCI-Bridge subsystem vendor id register */ 371#define PCI_SSVID_DEVICE_ID 6 /* PCI-Bridge subsystem device id register */ 372 373/* PCI Express capability registers */ 374 375#define PCI_EXP_FLAGS 2 /* Capabilities register */ 376#define PCI_EXP_FLAGS_VERS 0x000f /* Capability version */ 377#define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */ 378#define PCI_EXP_TYPE_ENDPOINT 0x0 /* Express Endpoint */ 379#define PCI_EXP_TYPE_LEG_END 0x1 /* Legacy Endpoint */ 380#define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */ 381#define PCI_EXP_TYPE_UPSTREAM 0x5 /* Upstream Port */ 382#define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */ 383#define PCI_EXP_TYPE_PCI_BRIDGE 0x7 /* PCI/PCI-X Bridge */ 384#define PCI_EXP_TYPE_RC_END 0x9 /* Root Complex Integrated Endpoint */ 385#define PCI_EXP_TYPE_RC_EC 0x10 /* Root Complex Event Collector */ 386#define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */ 387#define PCI_EXP_FLAGS_IRQ 0x3e00 /* Interrupt message number */ 388#define PCI_EXP_DEVCAP 4 /* Device capabilities */ 389#define PCI_EXP_DEVCAP_PAYLOAD 0x07 /* Max_Payload_Size */ 390#define PCI_EXP_DEVCAP_PHANTOM 0x18 /* Phantom functions */ 391#define PCI_EXP_DEVCAP_EXT_TAG 0x20 /* Extended tags */ 392#define PCI_EXP_DEVCAP_L0S 0x1c0 /* L0s Acceptable Latency */ 393#define PCI_EXP_DEVCAP_L1 0xe00 /* L1 Acceptable Latency */ 394#define PCI_EXP_DEVCAP_ATN_BUT 0x1000 /* Attention Button Present */ 395#define PCI_EXP_DEVCAP_ATN_IND 0x2000 /* Attention Indicator Present */ 396#define PCI_EXP_DEVCAP_PWR_IND 0x4000 /* Power Indicator Present */ 397#define PCI_EXP_DEVCAP_RBER 0x8000 /* Role-Based Error Reporting */ 398#define PCI_EXP_DEVCAP_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */ 399#define PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */ 400#define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */ 401#define PCI_EXP_DEVCTL 8 /* Device Control */ 402#define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */ 403#define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */ 404#define PCI_EXP_DEVCTL_FERE 0x0004 /* Fatal Error Reporting Enable */ 405#define PCI_EXP_DEVCTL_URRE 0x0008 /* Unsupported Request Reporting En. */ 406#define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */ 407#define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */ 408#define PCI_EXP_DEVCTL_EXT_TAG 0x0100 /* Extended Tag Field Enable */ 409#define PCI_EXP_DEVCTL_PHANTOM 0x0200 /* Phantom Functions Enable */ 410#define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */ 411#define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */ 412#define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */ 413#define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */ 414#define PCI_EXP_DEVSTA 10 /* Device Status */ 415#define PCI_EXP_DEVSTA_CED 0x01 /* Correctable Error Detected */ 416#define PCI_EXP_DEVSTA_NFED 0x02 /* Non-Fatal Error Detected */ 417#define PCI_EXP_DEVSTA_FED 0x04 /* Fatal Error Detected */ 418#define PCI_EXP_DEVSTA_URD 0x08 /* Unsupported Request Detected */ 419#define PCI_EXP_DEVSTA_AUXPD 0x10 /* AUX Power Detected */ 420#define PCI_EXP_DEVSTA_TRPND 0x20 /* Transactions Pending */ 421#define PCI_EXP_LNKCAP 12 /* Link Capabilities */ 422#define PCI_EXP_LNKCAP_SLS 0x0000000f /* Supported Link Speeds */ 423#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */ 424#define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */ 425#define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */ 426#define PCI_EXP_LNKCAP_L1EL 0x00038000 /* L1 Exit Latency */ 427#define PCI_EXP_LNKCAP_CLKPM 0x00040000 /* L1 Clock Power Management */ 428#define PCI_EXP_LNKCAP_SDERC 0x00080000 /* Suprise Down Error Reporting Capable */ 429#define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */ 430#define PCI_EXP_LNKCAP_LBNC 0x00200000 /* Link Bandwidth Notification Capability */ 431#define PCI_EXP_LNKCAP_PN 0xff000000 /* Port Number */ 432#define PCI_EXP_LNKCTL 16 /* Link Control */ 433#define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */ 434#define PCI_EXP_LNKCTL_RCB 0x0008 /* Read Completion Boundary */ 435#define PCI_EXP_LNKCTL_LD 0x0010 /* Link Disable */ 436#define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */ 437#define PCI_EXP_LNKCTL_CCC 0x0040 /* Common Clock Configuration */ 438#define PCI_EXP_LNKCTL_ES 0x0080 /* Extended Synch */ 439#define PCI_EXP_LNKCTL_CLKREQ_EN 0x100 /* Enable clkreq */ 440#define PCI_EXP_LNKCTL_HAWD 0x0200 /* Hardware Autonomous Width Disable */ 441#define PCI_EXP_LNKCTL_LBMIE 0x0400 /* Link Bandwidth Management Interrupt Enable */ 442#define PCI_EXP_LNKCTL_LABIE 0x0800 /* Lnk Autonomous Bandwidth Interrupt Enable */ 443#define PCI_EXP_LNKSTA 18 /* Link Status */ 444#define PCI_EXP_LNKSTA_CLS 0x000f /* Current Link Speed */ 445#define PCI_EXP_LNKSTA_CLS_2_5GB 0x01 /* Current Link Speed 2.5GT/s */ 446#define PCI_EXP_LNKSTA_CLS_5_0GB 0x02 /* Current Link Speed 5.0GT/s */ 447#define PCI_EXP_LNKSTA_NLW 0x03f0 /* Nogotiated Link Width */ 448#define PCI_EXP_LNKSTA_NLW_SHIFT 4 /* start of NLW mask in link status */ 449#define PCI_EXP_LNKSTA_LT 0x0800 /* Link Training */ 450#define PCI_EXP_LNKSTA_SLC 0x1000 /* Slot Clock Configuration */ 451#define PCI_EXP_LNKSTA_DLLLA 0x2000 /* Data Link Layer Link Active */ 452#define PCI_EXP_LNKSTA_LBMS 0x4000 /* Link Bandwidth Management Status */ 453#define PCI_EXP_LNKSTA_LABS 0x8000 /* Link Autonomous Bandwidth Status */ 454#define PCI_EXP_SLTCAP 20 /* Slot Capabilities */ 455#define PCI_EXP_SLTCAP_ABP 0x00000001 /* Attention Button Present */ 456#define PCI_EXP_SLTCAP_PCP 0x00000002 /* Power Controller Present */ 457#define PCI_EXP_SLTCAP_MRLSP 0x00000004 /* MRL Sensor Present */ 458#define PCI_EXP_SLTCAP_AIP 0x00000008 /* Attention Indicator Present */ 459#define PCI_EXP_SLTCAP_PIP 0x00000010 /* Power Indicator Present */ 460#define PCI_EXP_SLTCAP_HPS 0x00000020 /* Hot-Plug Surprise */ 461#define PCI_EXP_SLTCAP_HPC 0x00000040 /* Hot-Plug Capable */ 462#define PCI_EXP_SLTCAP_SPLV 0x00007f80 /* Slot Power Limit Value */ 463#define PCI_EXP_SLTCAP_SPLS 0x00018000 /* Slot Power Limit Scale */ 464#define PCI_EXP_SLTCAP_EIP 0x00020000 /* Electromechanical Interlock Present */ 465#define PCI_EXP_SLTCAP_NCCS 0x00040000 /* No Command Completed Support */ 466#define PCI_EXP_SLTCAP_PSN 0xfff80000 /* Physical Slot Number */ 467#define PCI_EXP_SLTCTL 24 /* Slot Control */ 468#define PCI_EXP_SLTCTL_ABPE 0x0001 /* Attention Button Pressed Enable */ 469#define PCI_EXP_SLTCTL_PFDE 0x0002 /* Power Fault Detected Enable */ 470#define PCI_EXP_SLTCTL_MRLSCE 0x0004 /* MRL Sensor Changed Enable */ 471#define PCI_EXP_SLTCTL_PDCE 0x0008 /* Presence Detect Changed Enable */ 472#define PCI_EXP_SLTCTL_CCIE 0x0010 /* Command Completed Interrupt Enable */ 473#define PCI_EXP_SLTCTL_HPIE 0x0020 /* Hot-Plug Interrupt Enable */ 474#define PCI_EXP_SLTCTL_AIC 0x00c0 /* Attention Indicator Control */ 475#define PCI_EXP_SLTCTL_PIC 0x0300 /* Power Indicator Control */ 476#define PCI_EXP_SLTCTL_PCC 0x0400 /* Power Controller Control */ 477#define PCI_EXP_SLTCTL_EIC 0x0800 /* Electromechanical Interlock Control */ 478#define PCI_EXP_SLTCTL_DLLSCE 0x1000 /* Data Link Layer State Changed Enable */ 479#define PCI_EXP_SLTSTA 26 /* Slot Status */ 480#define PCI_EXP_SLTSTA_ABP 0x0001 /* Attention Button Pressed */ 481#define PCI_EXP_SLTSTA_PFD 0x0002 /* Power Fault Detected */ 482#define PCI_EXP_SLTSTA_MRLSC 0x0004 /* MRL Sensor Changed */ 483#define PCI_EXP_SLTSTA_PDC 0x0008 /* Presence Detect Changed */ 484#define PCI_EXP_SLTSTA_CC 0x0010 /* Command Completed */ 485#define PCI_EXP_SLTSTA_MRLSS 0x0020 /* MRL Sensor State */ 486#define PCI_EXP_SLTSTA_PDS 0x0040 /* Presence Detect State */ 487#define PCI_EXP_SLTSTA_EIS 0x0080 /* Electromechanical Interlock Status */ 488#define PCI_EXP_SLTSTA_DLLSC 0x0100 /* Data Link Layer State Changed */ 489#define PCI_EXP_RTCTL 28 /* Root Control */ 490#define PCI_EXP_RTCTL_SECEE 0x01 /* System Error on Correctable Error */ 491#define PCI_EXP_RTCTL_SENFEE 0x02 /* System Error on Non-Fatal Error */ 492#define PCI_EXP_RTCTL_SEFEE 0x04 /* System Error on Fatal Error */ 493#define PCI_EXP_RTCTL_PMEIE 0x08 /* PME Interrupt Enable */ 494#define PCI_EXP_RTCTL_CRSSVE 0x10 /* CRS Software Visibility Enable */ 495#define PCI_EXP_RTCAP 30 /* Root Capabilities */ 496#define PCI_EXP_RTSTA 32 /* Root Status */ 497#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */ 498#define PCI_EXP_DEVCAP2_ARI 0x20 /* Alternative Routing-ID */ 499#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */ 500#define PCI_EXP_DEVCTL2_ARI 0x20 /* Alternative Routing-ID */ 501#define PCI_EXP_LNKCTL2 48 /* Link Control 2 */ 502#define PCI_EXP_SLTCTL2 56 /* Slot Control 2 */ 503 504/* Extended Capabilities (PCI-X 2.0 and Express) */ 505#define PCI_EXT_CAP_ID(header) (header & 0x0000ffff) 506#define PCI_EXT_CAP_VER(header) ((header >> 16) & 0xf) 507#define PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc) 508 509#define PCI_EXT_CAP_ID_ERR 1 510#define PCI_EXT_CAP_ID_VC 2 511#define PCI_EXT_CAP_ID_DSN 3 512#define PCI_EXT_CAP_ID_PWR 4 513#define PCI_EXT_CAP_ID_VNDR 11 514#define PCI_EXT_CAP_ID_ACS 13 515#define PCI_EXT_CAP_ID_ARI 14 516#define PCI_EXT_CAP_ID_ATS 15 517#define PCI_EXT_CAP_ID_SRIOV 16 518 519/* Advanced Error Reporting */ 520#define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */ 521#define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */ 522#define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */ 523#define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */ 524#define PCI_ERR_UNC_FCP 0x00002000 /* Flow Control Protocol */ 525#define PCI_ERR_UNC_COMP_TIME 0x00004000 /* Completion Timeout */ 526#define PCI_ERR_UNC_COMP_ABORT 0x00008000 /* Completer Abort */ 527#define PCI_ERR_UNC_UNX_COMP 0x00010000 /* Unexpected Completion */ 528#define PCI_ERR_UNC_RX_OVER 0x00020000 /* Receiver Overflow */ 529#define PCI_ERR_UNC_MALF_TLP 0x00040000 /* Malformed TLP */ 530#define PCI_ERR_UNC_ECRC 0x00080000 /* ECRC Error Status */ 531#define PCI_ERR_UNC_UNSUP 0x00100000 /* Unsupported Request */ 532#define PCI_ERR_UNCOR_MASK 8 /* Uncorrectable Error Mask */ 533 /* Same bits as above */ 534#define PCI_ERR_UNCOR_SEVER 12 /* Uncorrectable Error Severity */ 535 /* Same bits as above */ 536#define PCI_ERR_COR_STATUS 16 /* Correctable Error Status */ 537#define PCI_ERR_COR_RCVR 0x00000001 /* Receiver Error Status */ 538#define PCI_ERR_COR_BAD_TLP 0x00000040 /* Bad TLP Status */ 539#define PCI_ERR_COR_BAD_DLLP 0x00000080 /* Bad DLLP Status */ 540#define PCI_ERR_COR_REP_ROLL 0x00000100 /* REPLAY_NUM Rollover */ 541#define PCI_ERR_COR_REP_TIMER 0x00001000 /* Replay Timer Timeout */ 542#define PCI_ERR_COR_MASK 20 /* Correctable Error Mask */ 543 /* Same bits as above */ 544#define PCI_ERR_CAP 24 /* Advanced Error Capabilities */ 545#define PCI_ERR_CAP_FEP(x) ((x) & 31) /* First Error Pointer */ 546#define PCI_ERR_CAP_ECRC_GENC 0x00000020 /* ECRC Generation Capable */ 547#define PCI_ERR_CAP_ECRC_GENE 0x00000040 /* ECRC Generation Enable */ 548#define PCI_ERR_CAP_ECRC_CHKC 0x00000080 /* ECRC Check Capable */ 549#define PCI_ERR_CAP_ECRC_CHKE 0x00000100 /* ECRC Check Enable */ 550#define PCI_ERR_HEADER_LOG 28 /* Header Log Register (16 bytes) */ 551#define PCI_ERR_ROOT_COMMAND 44 /* Root Error Command */ 552/* Correctable Err Reporting Enable */ 553#define PCI_ERR_ROOT_CMD_COR_EN 0x00000001 554/* Non-fatal Err Reporting Enable */ 555#define PCI_ERR_ROOT_CMD_NONFATAL_EN 0x00000002 556/* Fatal Err Reporting Enable */ 557#define PCI_ERR_ROOT_CMD_FATAL_EN 0x00000004 558#define PCI_ERR_ROOT_STATUS 48 559#define PCI_ERR_ROOT_COR_RCV 0x00000001 /* ERR_COR Received */ 560/* Multi ERR_COR Received */ 561#define PCI_ERR_ROOT_MULTI_COR_RCV 0x00000002 562/* ERR_FATAL/NONFATAL Recevied */ 563#define PCI_ERR_ROOT_UNCOR_RCV 0x00000004 564/* Multi ERR_FATAL/NONFATAL Recevied */ 565#define PCI_ERR_ROOT_MULTI_UNCOR_RCV 0x00000008 566#define PCI_ERR_ROOT_FIRST_FATAL 0x00000010 /* First Fatal */ 567#define PCI_ERR_ROOT_NONFATAL_RCV 0x00000020 /* Non-Fatal Received */ 568#define PCI_ERR_ROOT_FATAL_RCV 0x00000040 /* Fatal Received */ 569#define PCI_ERR_ROOT_ERR_SRC 52 /* Error Source Identification */ 570 571/* Virtual Channel */ 572#define PCI_VC_PORT_REG1 4 573#define PCI_VC_PORT_REG2 8 574#define PCI_VC_PORT_CTRL 12 575#define PCI_VC_PORT_STATUS 14 576#define PCI_VC_RES_CAP 16 577#define PCI_VC_RES_CTRL 20 578#define PCI_VC_RES_STATUS 26 579 580/* Power Budgeting */ 581#define PCI_PWR_DSR 4 /* Data Select Register */ 582#define PCI_PWR_DATA 8 /* Data Register */ 583#define PCI_PWR_DATA_BASE(x) ((x) & 0xff) /* Base Power */ 584#define PCI_PWR_DATA_SCALE(x) (((x) >> 8) & 3) /* Data Scale */ 585#define PCI_PWR_DATA_PM_SUB(x) (((x) >> 10) & 7) /* PM Sub State */ 586#define PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */ 587#define PCI_PWR_DATA_TYPE(x) (((x) >> 15) & 7) /* Type */ 588#define PCI_PWR_DATA_RAIL(x) (((x) >> 18) & 7) /* Power Rail */ 589#define PCI_PWR_CAP 12 /* Capability */ 590#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */ 591 592/* 593 * Hypertransport sub capability types 594 * 595 * Unfortunately there are both 3 bit and 5 bit capability types defined 596 * in the HT spec, catering for that is a little messy. You probably don't 597 * want to use these directly, just use pci_find_ht_capability() and it 598 * will do the right thing for you. 599 */ 600#define HT_3BIT_CAP_MASK 0xE0 601#define HT_CAPTYPE_SLAVE 0x00 /* Slave/Primary link configuration */ 602#define HT_CAPTYPE_HOST 0x20 /* Host/Secondary link configuration */ 603 604#define HT_5BIT_CAP_MASK 0xF8 605#define HT_CAPTYPE_IRQ 0x80 /* IRQ Configuration */ 606#define HT_CAPTYPE_REMAPPING_40 0xA0 /* 40 bit address remapping */ 607#define HT_CAPTYPE_REMAPPING_64 0xA2 /* 64 bit address remapping */ 608#define HT_CAPTYPE_UNITID_CLUMP 0x90 /* Unit ID clumping */ 609#define HT_CAPTYPE_EXTCONF 0x98 /* Extended Configuration Space Access */ 610#define HT_CAPTYPE_MSI_MAPPING 0xA8 /* MSI Mapping Capability */ 611#define HT_MSI_FLAGS 0x02 /* Offset to flags */ 612#define HT_MSI_FLAGS_ENABLE 0x1 /* Mapping enable */ 613#define HT_MSI_FLAGS_FIXED 0x2 /* Fixed mapping only */ 614#define HT_MSI_FIXED_ADDR 0x00000000FEE00000ULL /* Fixed addr */ 615#define HT_MSI_ADDR_LO 0x04 /* Offset to low addr bits */ 616#define HT_MSI_ADDR_LO_MASK 0xFFF00000 /* Low address bit mask */ 617#define HT_MSI_ADDR_HI 0x08 /* Offset to high addr bits */ 618#define HT_CAPTYPE_DIRECT_ROUTE 0xB0 /* Direct routing configuration */ 619#define HT_CAPTYPE_VCSET 0xB8 /* Virtual Channel configuration */ 620#define HT_CAPTYPE_ERROR_RETRY 0xC0 /* Retry on error configuration */ 621#define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 hypertransport configuration */ 622#define HT_CAPTYPE_PM 0xE0 /* Hypertransport powermanagement configuration */ 623 624/* Alternative Routing-ID Interpretation */ 625#define PCI_ARI_CAP 0x04 /* ARI Capability Register */ 626#define PCI_ARI_CAP_MFVC 0x0001 /* MFVC Function Groups Capability */ 627#define PCI_ARI_CAP_ACS 0x0002 /* ACS Function Groups Capability */ 628#define PCI_ARI_CAP_NFN(x) (((x) >> 8) & 0xff) /* Next Function Number */ 629#define PCI_ARI_CTRL 0x06 /* ARI Control Register */ 630#define PCI_ARI_CTRL_MFVC 0x0001 /* MFVC Function Groups Enable */ 631#define PCI_ARI_CTRL_ACS 0x0002 /* ACS Function Groups Enable */ 632#define PCI_ARI_CTRL_FG(x) (((x) >> 4) & 7) /* Function Group */ 633 634/* Address Translation Service */ 635#define PCI_ATS_CAP 0x04 /* ATS Capability Register */ 636#define PCI_ATS_CAP_QDEP(x) ((x) & 0x1f) /* Invalidate Queue Depth */ 637#define PCI_ATS_MAX_QDEP 32 /* Max Invalidate Queue Depth */ 638#define PCI_ATS_CTRL 0x06 /* ATS Control Register */ 639#define PCI_ATS_CTRL_ENABLE 0x8000 /* ATS Enable */ 640#define PCI_ATS_CTRL_STU(x) ((x) & 0x1f) /* Smallest Translation Unit */ 641#define PCI_ATS_MIN_STU 12 /* shift of minimum STU block */ 642 643/* Single Root I/O Virtualization */ 644#define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */ 645#define PCI_SRIOV_CAP_VFM 0x01 /* VF Migration Capable */ 646#define PCI_SRIOV_CAP_INTR(x) ((x) >> 21) /* Interrupt Message Number */ 647#define PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */ 648#define PCI_SRIOV_CTRL_VFE 0x01 /* VF Enable */ 649#define PCI_SRIOV_CTRL_VFM 0x02 /* VF Migration Enable */ 650#define PCI_SRIOV_CTRL_INTR 0x04 /* VF Migration Interrupt Enable */ 651#define PCI_SRIOV_CTRL_MSE 0x08 /* VF Memory Space Enable */ 652#define PCI_SRIOV_CTRL_ARI 0x10 /* ARI Capable Hierarchy */ 653#define PCI_SRIOV_STATUS 0x0a /* SR-IOV Status */ 654#define PCI_SRIOV_STATUS_VFM 0x01 /* VF Migration Status */ 655#define PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */ 656#define PCI_SRIOV_TOTAL_VF 0x0e /* Total VFs */ 657#define PCI_SRIOV_NUM_VF 0x10 /* Number of VFs */ 658#define PCI_SRIOV_FUNC_LINK 0x12 /* Function Dependency Link */ 659#define PCI_SRIOV_VF_OFFSET 0x14 /* First VF Offset */ 660#define PCI_SRIOV_VF_STRIDE 0x16 /* Following VF Stride */ 661#define PCI_SRIOV_VF_DID 0x1a /* VF Device ID */ 662#define PCI_SRIOV_SUP_PGSIZE 0x1c /* Supported Page Sizes */ 663#define PCI_SRIOV_SYS_PGSIZE 0x20 /* System Page Size */ 664#define PCI_SRIOV_BAR 0x24 /* VF BAR0 */ 665#define PCI_SRIOV_NUM_BARS 6 /* Number of VF BARs */ 666#define PCI_SRIOV_VFM 0x3c /* VF Migration State Array Offset*/ 667#define PCI_SRIOV_VFM_BIR(x) ((x) & 7) /* State BIR */ 668#define PCI_SRIOV_VFM_OFFSET(x) ((x) & ~7) /* State Offset */ 669#define PCI_SRIOV_VFM_UA 0x0 /* Inactive.Unavailable */ 670#define PCI_SRIOV_VFM_MI 0x1 /* Dormant.MigrateIn */ 671#define PCI_SRIOV_VFM_MO 0x2 /* Active.MigrateOut */ 672#define PCI_SRIOV_VFM_AV 0x3 /* Active.Available */ 673 674/* Access Control Service */ 675#define PCI_ACS_CAP 0x04 /* ACS Capability Register */ 676#define PCI_ACS_SV 0x01 /* Source Validation */ 677#define PCI_ACS_TB 0x02 /* Translation Blocking */ 678#define PCI_ACS_RR 0x04 /* P2P Request Redirect */ 679#define PCI_ACS_CR 0x08 /* P2P Completion Redirect */ 680#define PCI_ACS_UF 0x10 /* Upstream Forwarding */ 681#define PCI_ACS_EC 0x20 /* P2P Egress Control */ 682#define PCI_ACS_DT 0x40 /* Direct Translated P2P */ 683#define PCI_ACS_CTRL 0x06 /* ACS Control Register */ 684#define PCI_ACS_EGRESS_CTL_V 0x08 /* ACS Egress Control Vector */ 685 686#endif /* LINUX_PCI_REGS_H */ 687