[pciutils.git] / lib / header.h

/*
 *      The PCI Library -- PCI Header Structure (based on <linux/pci.h>)
 *
 *      Copyright (c) 1997--2010 Martin Mares <mj@ucw.cz>
 *
 *      Can be freely distributed and used under the terms of the GNU GPL.
 */

/*
 * Under PCI, each device has 256 bytes of configuration address space,
 * of which the first 64 bytes are standardized as follows:
 */
#define PCI_VENDOR_ID           0x00    /* 16 bits */
#define PCI_DEVICE_ID           0x02    /* 16 bits */
#define PCI_COMMAND             0x04    /* 16 bits */
#define  PCI_COMMAND_IO         0x1     /* Enable response in I/O space */
#define  PCI_COMMAND_MEMORY     0x2     /* Enable response in Memory space */
#define  PCI_COMMAND_MASTER     0x4     /* Enable bus mastering */
#define  PCI_COMMAND_SPECIAL    0x8     /* Enable response to special cycles */
#define  PCI_COMMAND_INVALIDATE 0x10    /* Use memory write and invalidate */
#define  PCI_COMMAND_VGA_PALETTE 0x20   /* Enable palette snooping */
#define  PCI_COMMAND_PARITY     0x40    /* Enable parity checking */
#define  PCI_COMMAND_WAIT       0x80    /* Enable address/data stepping */
#define  PCI_COMMAND_SERR       0x100   /* Enable SERR */
#define  PCI_COMMAND_FAST_BACK  0x200   /* Enable back-to-back writes */
#define  PCI_COMMAND_DISABLE_INTx       0x400   /* PCIE: Disable INTx interrupts */

#define PCI_STATUS              0x06    /* 16 bits */
#define  PCI_STATUS_INTx        0x08    /* PCIE: INTx interrupt pending */
#define  PCI_STATUS_CAP_LIST    0x10    /* Support Capability List */
#define  PCI_STATUS_66MHZ       0x20    /* Support 66 Mhz PCI 2.1 bus */
#define  PCI_STATUS_UDF         0x40    /* Support User Definable Features [obsolete] */
#define  PCI_STATUS_FAST_BACK   0x80    /* Accept fast-back to back */
#define  PCI_STATUS_PARITY      0x100   /* Detected parity error */
#define  PCI_STATUS_DEVSEL_MASK 0x600   /* DEVSEL timing */
#define  PCI_STATUS_DEVSEL_FAST 0x000
#define  PCI_STATUS_DEVSEL_MEDIUM 0x200
#define  PCI_STATUS_DEVSEL_SLOW 0x400
#define  PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
#define  PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
#define  PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
#define  PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
#define  PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */

#define PCI_CLASS_REVISION      0x08    /* High 24 bits are class, low 8
                                           revision */
#define PCI_REVISION_ID         0x08    /* Revision ID */
#define PCI_CLASS_PROG          0x09    /* Reg. Level Programming Interface */
#define PCI_CLASS_DEVICE        0x0a    /* Device class */

#define PCI_CACHE_LINE_SIZE     0x0c    /* 8 bits */
#define PCI_LATENCY_TIMER       0x0d    /* 8 bits */
#define PCI_HEADER_TYPE         0x0e    /* 8 bits */
#define  PCI_HEADER_TYPE_NORMAL 0
#define  PCI_HEADER_TYPE_BRIDGE 1
#define  PCI_HEADER_TYPE_CARDBUS 2

#define PCI_BIST                0x0f    /* 8 bits */
#define PCI_BIST_CODE_MASK      0x0f    /* Return result */
#define PCI_BIST_START          0x40    /* 1 to start BIST, 2 secs or less */
#define PCI_BIST_CAPABLE        0x80    /* 1 if BIST capable */

/*
 * Base addresses specify locations in memory or I/O space.
 * Decoded size can be determined by writing a value of
 * 0xffffffff to the register, and reading it back.  Only
 * 1 bits are decoded.
 */
#define PCI_BASE_ADDRESS_0      0x10    /* 32 bits */
#define PCI_BASE_ADDRESS_1      0x14    /* 32 bits [htype 0,1 only] */
#define PCI_BASE_ADDRESS_2      0x18    /* 32 bits [htype 0 only] */
#define PCI_BASE_ADDRESS_3      0x1c    /* 32 bits */
#define PCI_BASE_ADDRESS_4      0x20    /* 32 bits */
#define PCI_BASE_ADDRESS_5      0x24    /* 32 bits */
#define  PCI_BASE_ADDRESS_SPACE 0x01    /* 0 = memory, 1 = I/O */
#define  PCI_BASE_ADDRESS_SPACE_IO 0x01
#define  PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
#define  PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
#define  PCI_BASE_ADDRESS_MEM_TYPE_32   0x00    /* 32 bit address */
#define  PCI_BASE_ADDRESS_MEM_TYPE_1M   0x02    /* Below 1M [obsolete] */
#define  PCI_BASE_ADDRESS_MEM_TYPE_64   0x04    /* 64 bit address */
#define  PCI_BASE_ADDRESS_MEM_PREFETCH  0x08    /* prefetchable? */
#define  PCI_BASE_ADDRESS_MEM_MASK      (~(pciaddr_t)0x0f)
#define  PCI_BASE_ADDRESS_IO_MASK       (~(pciaddr_t)0x03)
/* bit 1 is reserved if address_space = 1 */

/* Header type 0 (normal devices) */
#define PCI_CARDBUS_CIS         0x28
#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
#define PCI_SUBSYSTEM_ID        0x2e
#define PCI_ROM_ADDRESS         0x30    /* Bits 31..11 are address, 10..1 reserved */
#define  PCI_ROM_ADDRESS_ENABLE 0x01
#define PCI_ROM_ADDRESS_MASK    (~(pciaddr_t)0x7ff)

#define PCI_CAPABILITY_LIST     0x34    /* Offset of first capability list entry */

/* 0x35-0x3b are reserved */
#define PCI_INTERRUPT_LINE      0x3c    /* 8 bits */
#define PCI_INTERRUPT_PIN       0x3d    /* 8 bits */
#define PCI_MIN_GNT             0x3e    /* 8 bits */
#define PCI_MAX_LAT             0x3f    /* 8 bits */

/* Header type 1 (PCI-to-PCI bridges) */
#define PCI_PRIMARY_BUS         0x18    /* Primary bus number */
#define PCI_SECONDARY_BUS       0x19    /* Secondary bus number */
#define PCI_SUBORDINATE_BUS     0x1a    /* Highest bus number behind the bridge */
#define PCI_SEC_LATENCY_TIMER   0x1b    /* Latency timer for secondary interface */
#define PCI_IO_BASE             0x1c    /* I/O range behind the bridge */
#define PCI_IO_LIMIT            0x1d
#define  PCI_IO_RANGE_TYPE_MASK 0x0f    /* I/O bridging type */
#define  PCI_IO_RANGE_TYPE_16   0x00
#define  PCI_IO_RANGE_TYPE_32   0x01
#define  PCI_IO_RANGE_MASK      ~0x0f
#define PCI_SEC_STATUS          0x1e    /* Secondary status register */
#define PCI_MEMORY_BASE         0x20    /* Memory range behind */
#define PCI_MEMORY_LIMIT        0x22
#define  PCI_MEMORY_RANGE_TYPE_MASK 0x0f
#define  PCI_MEMORY_RANGE_MASK  ~0x0f
#define PCI_PREF_MEMORY_BASE    0x24    /* Prefetchable memory range behind */
#define PCI_PREF_MEMORY_LIMIT   0x26
#define  PCI_PREF_RANGE_TYPE_MASK 0x0f
#define  PCI_PREF_RANGE_TYPE_32 0x00
#define  PCI_PREF_RANGE_TYPE_64 0x01
#define  PCI_PREF_RANGE_MASK    ~0x0f
#define PCI_PREF_BASE_UPPER32   0x28    /* Upper half of prefetchable memory range */
#define PCI_PREF_LIMIT_UPPER32  0x2c
#define PCI_IO_BASE_UPPER16     0x30    /* Upper half of I/O addresses */
#define PCI_IO_LIMIT_UPPER16    0x32
/* 0x34 same as for htype 0 */
/* 0x35-0x3b is reserved */
#define PCI_ROM_ADDRESS1        0x38    /* Same as PCI_ROM_ADDRESS, but for htype 1 */
/* 0x3c-0x3d are same as for htype 0 */
#define PCI_BRIDGE_CONTROL      0x3e
#define  PCI_BRIDGE_CTL_PARITY  0x01    /* Enable parity detection on secondary interface */
#define  PCI_BRIDGE_CTL_SERR    0x02    /* The same for SERR forwarding */
#define  PCI_BRIDGE_CTL_NO_ISA  0x04    /* Disable bridging of ISA ports */
#define  PCI_BRIDGE_CTL_VGA     0x08    /* Forward VGA addresses */
#define  PCI_BRIDGE_CTL_VGA_16BIT 0x10  /* VGA 16-bit decode */
#define  PCI_BRIDGE_CTL_MASTER_ABORT 0x20  /* Report master aborts */
#define  PCI_BRIDGE_CTL_BUS_RESET 0x40  /* Secondary bus reset */
#define  PCI_BRIDGE_CTL_FAST_BACK 0x80  /* Fast Back2Back enabled on secondary interface */
#define  PCI_BRIDGE_CTL_PRI_DISCARD_TIMER 0x100         /* PCI-X? */
#define  PCI_BRIDGE_CTL_SEC_DISCARD_TIMER 0x200         /* PCI-X? */
#define  PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS 0x400      /* PCI-X? */
#define  PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN 0x800     /* PCI-X? */

/* Header type 2 (CardBus bridges) */
#define PCI_CB_CAPABILITY_LIST  0x14
/* 0x15 reserved */
#define PCI_CB_SEC_STATUS       0x16    /* Secondary status */
#define PCI_CB_PRIMARY_BUS      0x18    /* PCI bus number */
#define PCI_CB_CARD_BUS         0x19    /* CardBus bus number */
#define PCI_CB_SUBORDINATE_BUS  0x1a    /* Subordinate bus number */
#define PCI_CB_LATENCY_TIMER    0x1b    /* CardBus latency timer */
#define PCI_CB_MEMORY_BASE_0    0x1c
#define PCI_CB_MEMORY_LIMIT_0   0x20
#define PCI_CB_MEMORY_BASE_1    0x24
#define PCI_CB_MEMORY_LIMIT_1   0x28
#define PCI_CB_IO_BASE_0        0x2c
#define PCI_CB_IO_BASE_0_HI     0x2e
#define PCI_CB_IO_LIMIT_0       0x30
#define PCI_CB_IO_LIMIT_0_HI    0x32
#define PCI_CB_IO_BASE_1        0x34
#define PCI_CB_IO_BASE_1_HI     0x36
#define PCI_CB_IO_LIMIT_1       0x38
#define PCI_CB_IO_LIMIT_1_HI    0x3a
#define  PCI_CB_IO_RANGE_MASK   ~0x03
/* 0x3c-0x3d are same as for htype 0 */
#define PCI_CB_BRIDGE_CONTROL   0x3e
#define  PCI_CB_BRIDGE_CTL_PARITY       0x01    /* Similar to standard bridge control register */
#define  PCI_CB_BRIDGE_CTL_SERR         0x02
#define  PCI_CB_BRIDGE_CTL_ISA          0x04
#define  PCI_CB_BRIDGE_CTL_VGA          0x08
#define  PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
#define  PCI_CB_BRIDGE_CTL_CB_RESET     0x40    /* CardBus reset */
#define  PCI_CB_BRIDGE_CTL_16BIT_INT    0x80    /* Enable interrupt for 16-bit cards */
#define  PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100  /* Prefetch enable for both memory regions */
#define  PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
#define  PCI_CB_BRIDGE_CTL_POST_WRITES  0x400
#define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
#define PCI_CB_SUBSYSTEM_ID     0x42
#define PCI_CB_LEGACY_MODE_BASE 0x44    /* 16-bit PC Card legacy mode base address (ExCa) */
/* 0x48-0x7f reserved */

/* Capability lists */

#define PCI_CAP_LIST_ID         0       /* Capability ID */
#define  PCI_CAP_ID_NULL        0x00    /* Null Capability */
#define  PCI_CAP_ID_PM          0x01    /* Power Management */
#define  PCI_CAP_ID_AGP         0x02    /* Accelerated Graphics Port */
#define  PCI_CAP_ID_VPD         0x03    /* Vital Product Data */
#define  PCI_CAP_ID_SLOTID      0x04    /* Slot Identification */
#define  PCI_CAP_ID_MSI         0x05    /* Message Signaled Interrupts */
#define  PCI_CAP_ID_CHSWP       0x06    /* CompactPCI HotSwap */
#define  PCI_CAP_ID_PCIX        0x07    /* PCI-X */
#define  PCI_CAP_ID_HT          0x08    /* HyperTransport */
#define  PCI_CAP_ID_VNDR        0x09    /* Vendor specific */
#define  PCI_CAP_ID_DBG         0x0A    /* Debug port */
#define  PCI_CAP_ID_CCRC        0x0B    /* CompactPCI Central Resource Control */
#define  PCI_CAP_ID_HOTPLUG     0x0C    /* PCI hot-plug */
#define  PCI_CAP_ID_SSVID       0x0D    /* Bridge subsystem vendor/device ID */
#define  PCI_CAP_ID_AGP3        0x0E    /* AGP 8x */
#define  PCI_CAP_ID_SECURE      0x0F    /* Secure device (?) */
#define  PCI_CAP_ID_EXP         0x10    /* PCI Express */
#define  PCI_CAP_ID_MSIX        0x11    /* MSI-X */
#define  PCI_CAP_ID_SATA        0x12    /* Serial-ATA HBA */
#define  PCI_CAP_ID_AF          0x13    /* Advanced features of PCI devices integrated in PCIe root cplx */
#define  PCI_CAP_ID_EA          0x14    /* Enhanced Allocation */
#define PCI_CAP_LIST_NEXT       1       /* Next capability in the list */
#define PCI_CAP_FLAGS           2       /* Capability defined flags (16 bits) */
#define PCI_CAP_SIZEOF          4

/* Capabilities residing in the PCI Express extended configuration space */

#define PCI_EXT_CAP_ID_NULL     0x00    /* Null Capability */
#define PCI_EXT_CAP_ID_AER      0x01    /* Advanced Error Reporting */
#define PCI_EXT_CAP_ID_VC       0x02    /* Virtual Channel */
#define PCI_EXT_CAP_ID_DSN      0x03    /* Device Serial Number */
#define PCI_EXT_CAP_ID_PB       0x04    /* Power Budgeting */
#define PCI_EXT_CAP_ID_RCLINK   0x05    /* Root Complex Link Declaration */
#define PCI_EXT_CAP_ID_RCILINK  0x06    /* Root Complex Internal Link Declaration */
#define PCI_EXT_CAP_ID_RCEC     0x07    /* Root Complex Event Collector */
#define PCI_EXT_CAP_ID_MFVC     0x08    /* Multi-Function Virtual Channel */
#define PCI_EXT_CAP_ID_VC2      0x09    /* Virtual Channel (2nd ID) */
#define PCI_EXT_CAP_ID_RCRB     0x0a    /* Root Complex Register Block */
#define PCI_EXT_CAP_ID_VNDR     0x0b    /* Vendor specific */
#define PCI_EXT_CAP_ID_ACS      0x0d    /* Access Controls */
#define PCI_EXT_CAP_ID_ARI      0x0e    /* Alternative Routing-ID Interpretation */
#define PCI_EXT_CAP_ID_ATS      0x0f    /* Address Translation Service */
#define PCI_EXT_CAP_ID_SRIOV    0x10    /* Single Root I/O Virtualization */
#define PCI_EXT_CAP_ID_MRIOV    0x11    /* Multi-Root I/O Virtualization */
#define PCI_EXT_CAP_ID_MCAST    0x12    /* Multicast */
#define PCI_EXT_CAP_ID_PRI      0x13    /* Page Request Interface */
#define PCI_EXT_CAP_ID_REBAR    0x15    /* Resizable BAR */
#define PCI_EXT_CAP_ID_DPA      0x16    /* Dynamic Power Allocation */
#define PCI_EXT_CAP_ID_TPH      0x17    /* Transaction processing hints */
#define PCI_EXT_CAP_ID_LTR      0x18    /* Latency Tolerance Reporting */
#define PCI_EXT_CAP_ID_SECPCI   0x19    /* Secondary PCI Express */
#define PCI_EXT_CAP_ID_PMUX     0x1a    /* Protocol Multiplexing */
#define PCI_EXT_CAP_ID_PASID    0x1b    /* Process Address Space ID */
#define PCI_EXT_CAP_ID_LNR      0x1c    /* LN Requester */
#define PCI_EXT_CAP_ID_DPC      0x1d    /* Downstream Port Containment */
#define PCI_EXT_CAP_ID_L1PM     0x1e    /* L1 PM Substates */
#define PCI_EXT_CAP_ID_PTM      0x1f    /* Precision Time Measurement */
#define PCI_EXT_CAP_ID_M_PCIE   0x20    /* PCIe over M-PHY */
#define PCI_EXT_CAP_ID_FRS      0x21    /* FRS Queuing */
#define PCI_EXT_CAP_ID_RTR      0x22    /* Readiness Time Reporting */
#define PCI_EXT_CAP_ID_DVSEC    0x23    /* Designated Vendor-Specific */
#define PCI_EXT_CAP_ID_VF_REBAR 0x24    /* VF Resizable BAR */
#define PCI_EXT_CAP_ID_DLNK     0x25    /* Data Link Feature */
#define PCI_EXT_CAP_ID_16GT     0x26    /* Physical Layer 16.0 GT/s */
#define PCI_EXT_CAP_ID_LMR      0x27    /* Lane Margining at Receiver */
#define PCI_EXT_CAP_ID_HIER_ID  0x28    /* Hierarchy ID */
#define PCI_EXT_CAP_ID_NPEM     0x29    /* Native PCIe Enclosure Management */
#define PCI_EXT_CAP_ID_DOE      0x2e    /* Data Object Exchange */

/*** Definitions of capabilities ***/

/* Power Management Registers */

#define  PCI_PM_CAP_VER_MASK    0x0007  /* Version (2=PM1.1) */
#define  PCI_PM_CAP_PME_CLOCK   0x0008  /* Clock required for PME generation */
#define  PCI_PM_CAP_DSI         0x0020  /* Device specific initialization required */
#define  PCI_PM_CAP_AUX_C_MASK  0x01c0  /* Maximum aux current required in D3cold */
#define  PCI_PM_CAP_D1          0x0200  /* D1 power state support */
#define  PCI_PM_CAP_D2          0x0400  /* D2 power state support */
#define  PCI_PM_CAP_PME_D0      0x0800  /* PME can be asserted from D0 */
#define  PCI_PM_CAP_PME_D1      0x1000  /* PME can be asserted from D1 */
#define  PCI_PM_CAP_PME_D2      0x2000  /* PME can be asserted from D2 */
#define  PCI_PM_CAP_PME_D3_HOT  0x4000  /* PME can be asserted from D3hot */
#define  PCI_PM_CAP_PME_D3_COLD 0x8000  /* PME can be asserted from D3cold */
#define PCI_PM_CTRL             4       /* PM control and status register */
#define  PCI_PM_CTRL_STATE_MASK 0x0003  /* Current power state (D0 to D3) */
#define  PCI_PM_CTRL_NO_SOFT_RST        0x0008  /* No Soft Reset from D3hot to D0 */
#define  PCI_PM_CTRL_PME_ENABLE 0x0100  /* PME pin enable */
#define  PCI_PM_CTRL_DATA_SEL_MASK      0x1e00  /* PM table data index */
#define  PCI_PM_CTRL_DATA_SCALE_MASK    0x6000  /* PM table data scaling factor */
#define  PCI_PM_CTRL_PME_STATUS 0x8000  /* PME pin status */
#define PCI_PM_PPB_EXTENSIONS   6       /* PPB support extensions */
#define  PCI_PM_PPB_B2_B3       0x40    /* If bridge enters D3hot, bus enters: 0=B3, 1=B2 */
#define  PCI_PM_BPCC_ENABLE     0x80    /* Secondary bus is power managed */
#define PCI_PM_DATA_REGISTER    7       /* PM table contents read here */
#define PCI_PM_SIZEOF           8

/* AGP registers */

#define PCI_AGP_VERSION         2       /* BCD version number */
#define PCI_AGP_RFU             3       /* Rest of capability flags */
#define PCI_AGP_STATUS          4       /* Status register */
#define  PCI_AGP_STATUS_RQ_MASK 0xff000000      /* Maximum number of requests - 1 */
#define  PCI_AGP_STATUS_ISOCH   0x10000 /* Isochronous transactions supported */
#define  PCI_AGP_STATUS_ARQSZ_MASK      0xe000  /* log2(optimum async req size in bytes) - 4 */
#define  PCI_AGP_STATUS_CAL_MASK        0x1c00  /* Calibration cycle timing */
#define  PCI_AGP_STATUS_SBA     0x0200  /* Sideband addressing supported */
#define  PCI_AGP_STATUS_ITA_COH 0x0100  /* In-aperture accesses always coherent */
#define  PCI_AGP_STATUS_GART64  0x0080  /* 64-bit GART entries supported */
#define  PCI_AGP_STATUS_HTRANS  0x0040  /* If 0, core logic can xlate host CPU accesses thru aperture */
#define  PCI_AGP_STATUS_64BIT   0x0020  /* 64-bit addressing cycles supported */
#define  PCI_AGP_STATUS_FW      0x0010  /* Fast write transfers supported */
#define  PCI_AGP_STATUS_AGP3    0x0008  /* AGP3 mode supported */
#define  PCI_AGP_STATUS_RATE4   0x0004  /* 4x transfer rate supported (RFU in AGP3 mode) */
#define  PCI_AGP_STATUS_RATE2   0x0002  /* 2x transfer rate supported (8x in AGP3 mode) */
#define  PCI_AGP_STATUS_RATE1   0x0001  /* 1x transfer rate supported (4x in AGP3 mode) */
#define PCI_AGP_COMMAND         8       /* Control register */
#define  PCI_AGP_COMMAND_RQ_MASK 0xff000000  /* Master: Maximum number of requests */
#define  PCI_AGP_COMMAND_ARQSZ_MASK     0xe000  /* log2(optimum async req size in bytes) - 4 */
#define  PCI_AGP_COMMAND_CAL_MASK       0x1c00  /* Calibration cycle timing */
#define  PCI_AGP_COMMAND_SBA    0x0200  /* Sideband addressing enabled */
#define  PCI_AGP_COMMAND_AGP    0x0100  /* Allow processing of AGP transactions */
#define  PCI_AGP_COMMAND_GART64 0x0080  /* 64-bit GART entries enabled */
#define  PCI_AGP_COMMAND_64BIT  0x0020  /* Allow generation of 64-bit addr cycles */
#define  PCI_AGP_COMMAND_FW     0x0010  /* Enable FW transfers */
#define  PCI_AGP_COMMAND_RATE4  0x0004  /* Use 4x rate (RFU in AGP3 mode) */
#define  PCI_AGP_COMMAND_RATE2  0x0002  /* Use 2x rate (8x in AGP3 mode) */
#define  PCI_AGP_COMMAND_RATE1  0x0001  /* Use 1x rate (4x in AGP3 mode) */
#define PCI_AGP_SIZEOF          12

/* Vital Product Data */

#define PCI_VPD_ADDR            2       /* Address to access (15 bits!) */
#define  PCI_VPD_ADDR_MASK      0x7fff  /* Address mask */
#define  PCI_VPD_ADDR_F         0x8000  /* Write 0, 1 indicates completion */
#define PCI_VPD_DATA            4       /* 32-bits of data returned here */

/* Slot Identification */

#define PCI_SID_ESR             2       /* Expansion Slot Register */
#define  PCI_SID_ESR_NSLOTS     0x1f    /* Number of expansion slots available */
#define  PCI_SID_ESR_FIC        0x20    /* First In Chassis Flag */
#define PCI_SID_CHASSIS_NR      3       /* Chassis Number */

/* Message Signaled Interrupts registers */

#define PCI_MSI_FLAGS           2       /* Various flags */
#define  PCI_MSI_FLAGS_MASK_BIT 0x100   /* interrupt masking & reporting supported */
#define  PCI_MSI_FLAGS_64BIT    0x080   /* 64-bit addresses allowed */
#define  PCI_MSI_FLAGS_QSIZE    0x070   /* Message queue size configured */
#define  PCI_MSI_FLAGS_QMASK    0x00e   /* Maximum queue size available */
#define  PCI_MSI_FLAGS_ENABLE   0x001   /* MSI feature enabled */
#define PCI_MSI_RFU             3       /* Rest of capability flags */
#define PCI_MSI_ADDRESS_LO      4       /* Lower 32 bits */
#define PCI_MSI_ADDRESS_HI      8       /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
#define PCI_MSI_DATA_32         8       /* 16 bits of data for 32-bit devices */
#define PCI_MSI_DATA_64         12      /* 16 bits of data for 64-bit devices */
#define PCI_MSI_MASK_BIT_32     12      /* per-vector masking for 32-bit devices */
#define PCI_MSI_MASK_BIT_64     16      /* per-vector masking for 64-bit devices */
#define PCI_MSI_PENDING_32      16      /* per-vector interrupt pending for 32-bit devices */
#define PCI_MSI_PENDING_64      20      /* per-vector interrupt pending for 64-bit devices */

/* PCI-X */
#define PCI_PCIX_COMMAND                                                2 /* Command register offset */
#define PCI_PCIX_COMMAND_DPERE                                     0x0001 /* Data Parity Error Recover Enable */
#define PCI_PCIX_COMMAND_ERO                                       0x0002 /* Enable Relaxed Ordering */
#define PCI_PCIX_COMMAND_MAX_MEM_READ_BYTE_COUNT                   0x000c /* Maximum Memory Read Byte Count */
#define PCI_PCIX_COMMAND_MAX_OUTSTANDING_SPLIT_TRANS               0x0070
#define PCI_PCIX_COMMAND_RESERVED                                   0xf80
#define PCI_PCIX_STATUS                                                 4 /* Status register offset */
#define PCI_PCIX_STATUS_FUNCTION                               0x00000007
#define PCI_PCIX_STATUS_DEVICE                                 0x000000f8
#define PCI_PCIX_STATUS_BUS                                    0x0000ff00
#define PCI_PCIX_STATUS_64BIT                                  0x00010000
#define PCI_PCIX_STATUS_133MHZ                                 0x00020000
#define PCI_PCIX_STATUS_SC_DISCARDED                           0x00040000 /* Split Completion Discarded */
#define PCI_PCIX_STATUS_UNEXPECTED_SC                          0x00080000 /* Unexpected Split Completion */
#define PCI_PCIX_STATUS_DEVICE_COMPLEXITY                      0x00100000 /* 0 = simple device, 1 = bridge device */
#define PCI_PCIX_STATUS_DESIGNED_MAX_MEM_READ_BYTE_COUNT       0x00600000 /* 0 = 512 bytes, 1 = 1024, 2 = 2048, 3 = 4096 */
#define PCI_PCIX_STATUS_DESIGNED_MAX_OUTSTANDING_SPLIT_TRANS   0x03800000
#define PCI_PCIX_STATUS_DESIGNED_MAX_CUMULATIVE_READ_SIZE      0x1c000000
#define PCI_PCIX_STATUS_RCVD_SC_ERR_MESS                       0x20000000 /* Received Split Completion Error Message */
#define PCI_PCIX_STATUS_266MHZ                                 0x40000000 /* 266 MHz capable */
#define PCI_PCIX_STATUS_533MHZ                                 0x80000000 /* 533 MHz capable */
#define PCI_PCIX_SIZEOF         4

/* PCI-X Bridges */
#define PCI_PCIX_BRIDGE_SEC_STATUS                                      2 /* Secondary bus status register offset */
#define PCI_PCIX_BRIDGE_SEC_STATUS_64BIT                           0x0001
#define PCI_PCIX_BRIDGE_SEC_STATUS_133MHZ                          0x0002
#define PCI_PCIX_BRIDGE_SEC_STATUS_SC_DISCARDED                    0x0004 /* Split Completion Discarded on secondary bus */
#define PCI_PCIX_BRIDGE_SEC_STATUS_UNEXPECTED_SC                   0x0008 /* Unexpected Split Completion on secondary bus */
#define PCI_PCIX_BRIDGE_SEC_STATUS_SC_OVERRUN                      0x0010 /* Split Completion Overrun on secondary bus */
#define PCI_PCIX_BRIDGE_SEC_STATUS_SPLIT_REQUEST_DELAYED           0x0020
#define PCI_PCIX_BRIDGE_SEC_STATUS_CLOCK_FREQ                      0x01c0
#define PCI_PCIX_BRIDGE_SEC_STATUS_RESERVED                        0xfe00
#define PCI_PCIX_BRIDGE_STATUS                                          4 /* Primary bus status register offset */
#define PCI_PCIX_BRIDGE_STATUS_FUNCTION                        0x00000007
#define PCI_PCIX_BRIDGE_STATUS_DEVICE                          0x000000f8
#define PCI_PCIX_BRIDGE_STATUS_BUS                             0x0000ff00
#define PCI_PCIX_BRIDGE_STATUS_64BIT                           0x00010000
#define PCI_PCIX_BRIDGE_STATUS_133MHZ                          0x00020000
#define PCI_PCIX_BRIDGE_STATUS_SC_DISCARDED                    0x00040000 /* Split Completion Discarded */
#define PCI_PCIX_BRIDGE_STATUS_UNEXPECTED_SC                   0x00080000 /* Unexpected Split Completion */
#define PCI_PCIX_BRIDGE_STATUS_SC_OVERRUN                      0x00100000 /* Split Completion Overrun */
#define PCI_PCIX_BRIDGE_STATUS_SPLIT_REQUEST_DELAYED           0x00200000
#define PCI_PCIX_BRIDGE_STATUS_RESERVED                        0xffc00000
#define PCI_PCIX_BRIDGE_UPSTREAM_SPLIT_TRANS_CTRL                       8 /* Upstream Split Transaction Register offset */
#define PCI_PCIX_BRIDGE_DOWNSTREAM_SPLIT_TRANS_CTRL                    12 /* Downstream Split Transaction Register offset */
#define PCI_PCIX_BRIDGE_STR_CAPACITY                           0x0000ffff
#define PCI_PCIX_BRIDGE_STR_COMMITMENT_LIMIT                   0xffff0000
#define PCI_PCIX_BRIDGE_SIZEOF 12

/* HyperTransport (as of spec rev. 2.00) */
#define PCI_HT_CMD              2       /* Command Register */
#define  PCI_HT_CMD_TYP_HI      0xe000  /* Capability Type high part */
#define  PCI_HT_CMD_TYP_HI_PRI  0x0000  /* Slave or Primary Interface */
#define  PCI_HT_CMD_TYP_HI_SEC  0x2000  /* Host or Secondary Interface */
#define  PCI_HT_CMD_TYP         0xf800  /* Capability Type */
#define  PCI_HT_CMD_TYP_SW      0x4000  /* Switch */
#define  PCI_HT_CMD_TYP_IDC     0x8000  /* Interrupt Discovery and Configuration */
#define  PCI_HT_CMD_TYP_RID     0x8800  /* Revision ID */
#define  PCI_HT_CMD_TYP_UIDC    0x9000  /* UnitID Clumping */
#define  PCI_HT_CMD_TYP_ECSA    0x9800  /* Extended Configuration Space Access */
#define  PCI_HT_CMD_TYP_AM      0xa000  /* Address Mapping */
#define  PCI_HT_CMD_TYP_MSIM    0xa800  /* MSI Mapping */
#define  PCI_HT_CMD_TYP_DR      0xb000  /* DirectRoute */
#define  PCI_HT_CMD_TYP_VCS     0xb800  /* VCSet */
#define  PCI_HT_CMD_TYP_RM      0xc000  /* Retry Mode */
#define  PCI_HT_CMD_TYP_X86     0xc800  /* X86 (reserved) */

                                        /* Link Control Register */
#define  PCI_HT_LCTR_CFLE       0x0002  /* CRC Flood Enable */
#define  PCI_HT_LCTR_CST        0x0004  /* CRC Start Test */
#define  PCI_HT_LCTR_CFE        0x0008  /* CRC Force Error */
#define  PCI_HT_LCTR_LKFAIL     0x0010  /* Link Failure */
#define  PCI_HT_LCTR_INIT       0x0020  /* Initialization Complete */
#define  PCI_HT_LCTR_EOC        0x0040  /* End of Chain */
#define  PCI_HT_LCTR_TXO        0x0080  /* Transmitter Off */
#define  PCI_HT_LCTR_CRCERR     0x0f00  /* CRC Error */
#define  PCI_HT_LCTR_ISOCEN     0x1000  /* Isochronous Flow Control Enable */
#define  PCI_HT_LCTR_LSEN       0x2000  /* LDTSTOP# Tristate Enable */
#define  PCI_HT_LCTR_EXTCTL     0x4000  /* Extended CTL Time */
#define  PCI_HT_LCTR_64B        0x8000  /* 64-bit Addressing Enable */

                                        /* Link Configuration Register */
#define  PCI_HT_LCNF_MLWI       0x0007  /* Max Link Width In */
#define  PCI_HT_LCNF_LW_8B      0x0     /* Link Width 8 bits */
#define  PCI_HT_LCNF_LW_16B     0x1     /* Link Width 16 bits */
#define  PCI_HT_LCNF_LW_32B     0x3     /* Link Width 32 bits */
#define  PCI_HT_LCNF_LW_2B      0x4     /* Link Width 2 bits */
#define  PCI_HT_LCNF_LW_4B      0x5     /* Link Width 4 bits */
#define  PCI_HT_LCNF_LW_NC      0x7     /* Link physically not connected */
#define  PCI_HT_LCNF_DFI        0x0008  /* Doubleword Flow Control In */
#define  PCI_HT_LCNF_MLWO       0x0070  /* Max Link Width Out */
#define  PCI_HT_LCNF_DFO        0x0080  /* Doubleword Flow Control Out */
#define  PCI_HT_LCNF_LWI        0x0700  /* Link Width In */
#define  PCI_HT_LCNF_DFIE       0x0800  /* Doubleword Flow Control In Enable */
#define  PCI_HT_LCNF_LWO        0x7000  /* Link Width Out */
#define  PCI_HT_LCNF_DFOE       0x8000  /* Doubleword Flow Control Out Enable */

                                        /* Revision ID Register */
#define  PCI_HT_RID_MIN         0x1f    /* Minor Revision */
#define  PCI_HT_RID_MAJ         0xe0    /* Major Revision */

                                        /* Link Frequency/Error Register */
#define  PCI_HT_LFRER_FREQ      0x0f    /* Transmitter Clock Frequency */
#define  PCI_HT_LFRER_200       0x00    /* 200MHz */
#define  PCI_HT_LFRER_300       0x01    /* 300MHz */
#define  PCI_HT_LFRER_400       0x02    /* 400MHz */
#define  PCI_HT_LFRER_500       0x03    /* 500MHz */
#define  PCI_HT_LFRER_600       0x04    /* 600MHz */
#define  PCI_HT_LFRER_800       0x05    /* 800MHz */
#define  PCI_HT_LFRER_1000      0x06    /* 1.0GHz */
#define  PCI_HT_LFRER_1200      0x07    /* 1.2GHz */
#define  PCI_HT_LFRER_1400      0x08    /* 1.4GHz */
#define  PCI_HT_LFRER_1600      0x09    /* 1.6GHz */
#define  PCI_HT_LFRER_VEND      0x0f    /* Vendor-Specific */
#define  PCI_HT_LFRER_ERR       0xf0    /* Link Error */
#define  PCI_HT_LFRER_PROT      0x10    /* Protocol Error */
#define  PCI_HT_LFRER_OV        0x20    /* Overflow Error */
#define  PCI_HT_LFRER_EOC       0x40    /* End of Chain Error */
#define  PCI_HT_LFRER_CTLT      0x80    /* CTL Timeout */

                                        /* Link Frequency Capability Register */
#define  PCI_HT_LFCAP_200       0x0001  /* 200MHz */
#define  PCI_HT_LFCAP_300       0x0002  /* 300MHz */
#define  PCI_HT_LFCAP_400       0x0004  /* 400MHz */
#define  PCI_HT_LFCAP_500       0x0008  /* 500MHz */
#define  PCI_HT_LFCAP_600       0x0010  /* 600MHz */
#define  PCI_HT_LFCAP_800       0x0020  /* 800MHz */
#define  PCI_HT_LFCAP_1000      0x0040  /* 1.0GHz */
#define  PCI_HT_LFCAP_1200      0x0080  /* 1.2GHz */
#define  PCI_HT_LFCAP_1400      0x0100  /* 1.4GHz */
#define  PCI_HT_LFCAP_1600      0x0200  /* 1.6GHz */
#define  PCI_HT_LFCAP_VEND      0x8000  /* Vendor-Specific */

                                        /* Feature Register */
#define  PCI_HT_FTR_ISOCFC      0x0001  /* Isochronous Flow Control Mode */
#define  PCI_HT_FTR_LDTSTOP     0x0002  /* LDTSTOP# Supported */
#define  PCI_HT_FTR_CRCTM       0x0004  /* CRC Test Mode */
#define  PCI_HT_FTR_ECTLT       0x0008  /* Extended CTL Time Required */
#define  PCI_HT_FTR_64BA        0x0010  /* 64-bit Addressing */
#define  PCI_HT_FTR_UIDRD       0x0020  /* UnitID Reorder Disable */

                                        /* Error Handling Register */
#define  PCI_HT_EH_PFLE         0x0001  /* Protocol Error Flood Enable */
#define  PCI_HT_EH_OFLE         0x0002  /* Overflow Error Flood Enable */
#define  PCI_HT_EH_PFE          0x0004  /* Protocol Error Fatal Enable */
#define  PCI_HT_EH_OFE          0x0008  /* Overflow Error Fatal Enable */
#define  PCI_HT_EH_EOCFE        0x0010  /* End of Chain Error Fatal Enable */
#define  PCI_HT_EH_RFE          0x0020  /* Response Error Fatal Enable */
#define  PCI_HT_EH_CRCFE        0x0040  /* CRC Error Fatal Enable */
#define  PCI_HT_EH_SERRFE       0x0080  /* System Error Fatal Enable (B */
#define  PCI_HT_EH_CF           0x0100  /* Chain Fail */
#define  PCI_HT_EH_RE           0x0200  /* Response Error */
#define  PCI_HT_EH_PNFE         0x0400  /* Protocol Error Nonfatal Enable */
#define  PCI_HT_EH_ONFE         0x0800  /* Overflow Error Nonfatal Enable */
#define  PCI_HT_EH_EOCNFE       0x1000  /* End of Chain Error Nonfatal Enable */
#define  PCI_HT_EH_RNFE         0x2000  /* Response Error Nonfatal Enable */
#define  PCI_HT_EH_CRCNFE       0x4000  /* CRC Error Nonfatal Enable */
#define  PCI_HT_EH_SERRNFE      0x8000  /* System Error Nonfatal Enable */

/* HyperTransport: Slave or Primary Interface */
#define PCI_HT_PRI_CMD          2       /* Command Register */
#define  PCI_HT_PRI_CMD_BUID    0x001f  /* Base UnitID */
#define  PCI_HT_PRI_CMD_UC      0x03e0  /* Unit Count */
#define  PCI_HT_PRI_CMD_MH      0x0400  /* Master Host */
#define  PCI_HT_PRI_CMD_DD      0x0800  /* Default Direction */
#define  PCI_HT_PRI_CMD_DUL     0x1000  /* Drop on Uninitialized Link */

#define PCI_HT_PRI_LCTR0        4       /* Link Control 0 Register */
#define PCI_HT_PRI_LCNF0        6       /* Link Config 0 Register */
#define PCI_HT_PRI_LCTR1        8       /* Link Control 1 Register */
#define PCI_HT_PRI_LCNF1        10      /* Link Config 1 Register */
#define PCI_HT_PRI_RID          12      /* Revision ID Register */
#define PCI_HT_PRI_LFRER0       13      /* Link Frequency/Error 0 Register */
#define PCI_HT_PRI_LFCAP0       14      /* Link Frequency Capability 0 Register */
#define PCI_HT_PRI_FTR          16      /* Feature Register */
#define PCI_HT_PRI_LFRER1       17      /* Link Frequency/Error 1 Register */
#define PCI_HT_PRI_LFCAP1       18      /* Link Frequency Capability 1 Register */
#define PCI_HT_PRI_ES           20      /* Enumeration Scratchpad Register */
#define PCI_HT_PRI_EH           22      /* Error Handling Register */
#define PCI_HT_PRI_MBU          24      /* Memory Base Upper Register */
#define PCI_HT_PRI_MLU          25      /* Memory Limit Upper Register */
#define PCI_HT_PRI_BN           26      /* Bus Number Register */
#define PCI_HT_PRI_SIZEOF       28

/* HyperTransport: Host or Secondary Interface */
#define PCI_HT_SEC_CMD          2       /* Command Register */
#define  PCI_HT_SEC_CMD_WR      0x0001  /* Warm Reset */
#define  PCI_HT_SEC_CMD_DE      0x0002  /* Double-Ended */
#define  PCI_HT_SEC_CMD_DN      0x0076  /* Device Number */
#define  PCI_HT_SEC_CMD_CS      0x0080  /* Chain Side */
#define  PCI_HT_SEC_CMD_HH      0x0100  /* Host Hide */
#define  PCI_HT_SEC_CMD_AS      0x0400  /* Act as Slave */
#define  PCI_HT_SEC_CMD_HIECE   0x0800  /* Host Inbound End of Chain Error */
#define  PCI_HT_SEC_CMD_DUL     0x1000  /* Drop on Uninitialized Link */

#define PCI_HT_SEC_LCTR         4       /* Link Control Register */
#define PCI_HT_SEC_LCNF         6       /* Link Config Register */
#define PCI_HT_SEC_RID          8       /* Revision ID Register */
#define PCI_HT_SEC_LFRER        9       /* Link Frequency/Error Register */
#define PCI_HT_SEC_LFCAP        10      /* Link Frequency Capability Register */
#define PCI_HT_SEC_FTR          12      /* Feature Register */
#define  PCI_HT_SEC_FTR_EXTRS   0x0100  /* Extended Register Set */
#define  PCI_HT_SEC_FTR_UCNFE   0x0200  /* Upstream Configuration Enable */
#define PCI_HT_SEC_ES           16      /* Enumeration Scratchpad Register */
#define PCI_HT_SEC_EH           18      /* Error Handling Register */
#define PCI_HT_SEC_MBU          20      /* Memory Base Upper Register */
#define PCI_HT_SEC_MLU          21      /* Memory Limit Upper Register */
#define PCI_HT_SEC_SIZEOF       24

/* HyperTransport: Switch */
#define PCI_HT_SW_CMD           2       /* Switch Command Register */
#define  PCI_HT_SW_CMD_VIBERR   0x0080  /* VIB Error */
#define  PCI_HT_SW_CMD_VIBFL    0x0100  /* VIB Flood */
#define  PCI_HT_SW_CMD_VIBFT    0x0200  /* VIB Fatal */
#define  PCI_HT_SW_CMD_VIBNFT   0x0400  /* VIB Nonfatal */
#define PCI_HT_SW_PMASK         4       /* Partition Mask Register */
#define PCI_HT_SW_SWINF         8       /* Switch Info Register */
#define  PCI_HT_SW_SWINF_DP     0x0000001f /* Default Port */
#define  PCI_HT_SW_SWINF_EN     0x00000020 /* Enable Decode */
#define  PCI_HT_SW_SWINF_CR     0x00000040 /* Cold Reset */
#define  PCI_HT_SW_SWINF_PCIDX  0x00000f00 /* Performance Counter Index */
#define  PCI_HT_SW_SWINF_BLRIDX 0x0003f000 /* Base/Limit Range Index */
#define  PCI_HT_SW_SWINF_SBIDX  0x00002000 /* Secondary Base Range Index */
#define  PCI_HT_SW_SWINF_HP     0x00040000 /* Hot Plug */
#define  PCI_HT_SW_SWINF_HIDE   0x00080000 /* Hide Port */
#define PCI_HT_SW_PCD           12      /* Performance Counter Data Register */
#define PCI_HT_SW_BLRD          16      /* Base/Limit Range Data Register */
#define PCI_HT_SW_SBD           20      /* Secondary Base Data Register */
#define PCI_HT_SW_SIZEOF        24

                                        /* Counter indices */
#define  PCI_HT_SW_PC_PCR       0x0     /* Posted Command Receive */
#define  PCI_HT_SW_PC_NPCR      0x1     /* Nonposted Command Receive */
#define  PCI_HT_SW_PC_RCR       0x2     /* Response Command Receive */
#define  PCI_HT_SW_PC_PDWR      0x3     /* Posted DW Receive */
#define  PCI_HT_SW_PC_NPDWR     0x4     /* Nonposted DW Receive */
#define  PCI_HT_SW_PC_RDWR      0x5     /* Response DW Receive */
#define  PCI_HT_SW_PC_PCT       0x6     /* Posted Command Transmit */
#define  PCI_HT_SW_PC_NPCT      0x7     /* Nonposted Command Transmit */
#define  PCI_HT_SW_PC_RCT       0x8     /* Response Command Transmit */
#define  PCI_HT_SW_PC_PDWT      0x9     /* Posted DW Transmit */
#define  PCI_HT_SW_PC_NPDWT     0xa     /* Nonposted DW Transmit */
#define  PCI_HT_SW_PC_RDWT      0xb     /* Response DW Transmit */

                                        /* Base/Limit Range indices */
#define  PCI_HT_SW_BLR_BASE0_LO 0x0     /* Base 0[31:1], Enable */
#define  PCI_HT_SW_BLR_BASE0_HI 0x1     /* Base 0 Upper */
#define  PCI_HT_SW_BLR_LIM0_LO  0x2     /* Limit 0 Lower */
#define  PCI_HT_SW_BLR_LIM0_HI  0x3     /* Limit 0 Upper */

                                        /* Secondary Base indices */
#define  PCI_HT_SW_SB_LO        0x0     /* Secondary Base[31:1], Enable */
#define  PCI_HT_SW_S0_HI        0x1     /* Secondary Base Upper */

/* HyperTransport: Interrupt Discovery and Configuration */
#define PCI_HT_IDC_IDX          2       /* Index Register */
#define PCI_HT_IDC_DATA         4       /* Data Register */
#define PCI_HT_IDC_SIZEOF       8

                                        /* Register indices */
#define  PCI_HT_IDC_IDX_LINT    0x01    /* Last Interrupt Register */
#define   PCI_HT_IDC_LINT       0x00ff0000 /* Last interrupt definition */
#define  PCI_HT_IDC_IDX_IDR     0x10    /* Interrupt Definition Registers */
                                        /* Low part (at index) */
#define   PCI_HT_IDC_IDR_MASK   0x10000001 /* Mask */
#define   PCI_HT_IDC_IDR_POL    0x10000002 /* Polarity */
#define   PCI_HT_IDC_IDR_II_2   0x1000001c /* IntrInfo[4:2]: Message Type */
#define   PCI_HT_IDC_IDR_II_5   0x10000020 /* IntrInfo[5]: Request EOI */
#define   PCI_HT_IDC_IDR_II_6   0x00ffffc0 /* IntrInfo[23:6] */
#define   PCI_HT_IDC_IDR_II_24  0xff000000 /* IntrInfo[31:24] */
                                        /* High part (at index + 1) */
#define   PCI_HT_IDC_IDR_II_32  0x00ffffff /* IntrInfo[55:32] */
#define   PCI_HT_IDC_IDR_PASSPW 0x40000000 /* PassPW setting for messages */
#define   PCI_HT_IDC_IDR_WEOI   0x80000000 /* Waiting for EOI */

/* HyperTransport: Revision ID */
#define PCI_HT_RID_RID          2       /* Revision Register */
#define PCI_HT_RID_SIZEOF       4

/* HyperTransport: UnitID Clumping */
#define PCI_HT_UIDC_CS          4       /* Clumping Support Register */
#define PCI_HT_UIDC_CE          8       /* Clumping Enable Register */
#define PCI_HT_UIDC_SIZEOF      12

/* HyperTransport: Extended Configuration Space Access */
#define PCI_HT_ECSA_ADDR        4       /* Configuration Address Register */
#define  PCI_HT_ECSA_ADDR_REG   0x00000ffc /* Register */
#define  PCI_HT_ECSA_ADDR_FUN   0x00007000 /* Function */
#define  PCI_HT_ECSA_ADDR_DEV   0x000f1000 /* Device */
#define  PCI_HT_ECSA_ADDR_BUS   0x0ff00000 /* Bus Number */
#define  PCI_HT_ECSA_ADDR_TYPE  0x10000000 /* Access Type */
#define PCI_HT_ECSA_DATA        8       /* Configuration Data Register */
#define PCI_HT_ECSA_SIZEOF      12

/* HyperTransport: Address Mapping */
#define PCI_HT_AM_CMD           2       /* Command Register */
#define  PCI_HT_AM_CMD_NDMA     0x000f  /* Number of DMA Mappings */
#define  PCI_HT_AM_CMD_IOSIZ    0x01f0  /* I/O Size */
#define  PCI_HT_AM_CMD_MT       0x0600  /* Map Type */
#define  PCI_HT_AM_CMD_MT_40B   0x0000  /* 40-bit */
#define  PCI_HT_AM_CMD_MT_64B   0x0200  /* 64-bit */

                                        /* Window Control Register bits */
#define  PCI_HT_AM_SBW_CTR_COMP 0x1     /* Compat */
#define  PCI_HT_AM_SBW_CTR_NCOH 0x2     /* NonCoherent */
#define  PCI_HT_AM_SBW_CTR_ISOC 0x4     /* Isochronous */
#define  PCI_HT_AM_SBW_CTR_EN   0x8     /* Enable */

/* HyperTransport: 40-bit Address Mapping */
#define PCI_HT_AM40_SBNPW       4       /* Secondary Bus Non-Prefetchable Window Register */
#define  PCI_HT_AM40_SBW_BASE   0x000fffff /* Window Base */
#define  PCI_HT_AM40_SBW_CTR    0xf0000000 /* Window Control */
#define PCI_HT_AM40_SBPW        8       /* Secondary Bus Prefetchable Window Register */
#define PCI_HT_AM40_DMA_PBASE0  12      /* DMA Window Primary Base 0 Register */
#define PCI_HT_AM40_DMA_CTR0    15      /* DMA Window Control 0 Register */
#define  PCI_HT_AM40_DMA_CTR_CTR 0xf0   /* Window Control */
#define PCI_HT_AM40_DMA_SLIM0   16      /* DMA Window Secondary Limit 0 Register */
#define PCI_HT_AM40_DMA_SBASE0  18      /* DMA Window Secondary Base 0 Register */
#define PCI_HT_AM40_SIZEOF      12      /* size is variable: 12 + 8 * NDMA */

/* HyperTransport: 64-bit Address Mapping */
#define PCI_HT_AM64_IDX         4       /* Index Register */
#define PCI_HT_AM64_DATA_LO     8       /* Data Lower Register */
#define PCI_HT_AM64_DATA_HI     12      /* Data Upper Register */
#define PCI_HT_AM64_SIZEOF      16

                                        /* Register indices */
#define  PCI_HT_AM64_IDX_SBNPW  0x00    /* Secondary Bus Non-Prefetchable Window Register */
#define   PCI_HT_AM64_W_BASE_LO 0xfff00000 /* Window Base Lower */
#define   PCI_HT_AM64_W_CTR     0x0000000f /* Window Control */
#define  PCI_HT_AM64_IDX_SBPW   0x01    /* Secondary Bus Prefetchable Window Register */
#define   PCI_HT_AM64_IDX_PBNPW 0x02    /* Primary Bus Non-Prefetchable Window Register */
#define   PCI_HT_AM64_IDX_DMAPB0 0x04   /* DMA Window Primary Base 0 Register */
#define   PCI_HT_AM64_IDX_DMASB0 0x05   /* DMA Window Secondary Base 0 Register */
#define   PCI_HT_AM64_IDX_DMASL0 0x06   /* DMA Window Secondary Limit 0 Register */

/* HyperTransport: MSI Mapping */
#define PCI_HT_MSIM_CMD         2       /* Command Register */
#define  PCI_HT_MSIM_CMD_EN     0x0001  /* Mapping Active */
#define  PCI_HT_MSIM_CMD_FIXD   0x0002  /* MSI Mapping Address Fixed */
#define PCI_HT_MSIM_ADDR_LO     4       /* MSI Mapping Address Lower Register */
#define PCI_HT_MSIM_ADDR_HI     8       /* MSI Mapping Address Upper Register */
#define PCI_HT_MSIM_SIZEOF      12

/* HyperTransport: DirectRoute */
#define PCI_HT_DR_CMD           2       /* Command Register */
#define  PCI_HT_DR_CMD_NDRS     0x000f  /* Number of DirectRoute Spaces */
#define  PCI_HT_DR_CMD_IDX      0x01f0  /* Index */
#define PCI_HT_DR_EN            4       /* Enable Vector Register */
#define PCI_HT_DR_DATA          8       /* Data Register */
#define PCI_HT_DR_SIZEOF        12

                                        /* Register indices */
#define  PCI_HT_DR_IDX_BASE_LO  0x00    /* DirectRoute Base Lower Register */
#define   PCI_HT_DR_OTNRD       0x00000001 /* Opposite to Normal Request Direction */
#define   PCI_HT_DR_BL_LO       0xffffff00 /* Base/Limit Lower */
#define  PCI_HT_DR_IDX_BASE_HI  0x01    /* DirectRoute Base Upper Register */
#define  PCI_HT_DR_IDX_LIMIT_LO 0x02    /* DirectRoute Limit Lower Register */
#define  PCI_HT_DR_IDX_LIMIT_HI 0x03    /* DirectRoute Limit Upper Register */

/* HyperTransport: VCSet */
#define PCI_HT_VCS_SUP          4       /* VCSets Supported Register */
#define PCI_HT_VCS_L1EN         5       /* Link 1 VCSets Enabled Register */
#define PCI_HT_VCS_L0EN         6       /* Link 0 VCSets Enabled Register */
#define PCI_HT_VCS_SBD          8       /* Stream Bucket Depth Register */
#define PCI_HT_VCS_SINT         9       /* Stream Interval Register */
#define PCI_HT_VCS_SSUP         10      /* Number of Streaming VCs Supported Register */
#define  PCI_HT_VCS_SSUP_0      0x00    /* Streaming VC 0 */
#define  PCI_HT_VCS_SSUP_3      0x01    /* Streaming VCs 0-3 */
#define  PCI_HT_VCS_SSUP_15     0x02    /* Streaming VCs 0-15 */
#define PCI_HT_VCS_NFCBD        12      /* Non-FC Bucket Depth Register */
#define PCI_HT_VCS_NFCINT       13      /* Non-FC Bucket Interval Register */
#define PCI_HT_VCS_SIZEOF       16

/* HyperTransport: Retry Mode */
#define PCI_HT_RM_CTR0          4       /* Control 0 Register */
#define  PCI_HT_RM_CTR_LRETEN   0x01    /* Link Retry Enable */
#define  PCI_HT_RM_CTR_FSER     0x02    /* Force Single Error */
#define  PCI_HT_RM_CTR_ROLNEN   0x04    /* Rollover Nonfatal Enable */
#define  PCI_HT_RM_CTR_FSS      0x08    /* Force Single Stomp */
#define  PCI_HT_RM_CTR_RETNEN   0x10    /* Retry Nonfatal Enable */
#define  PCI_HT_RM_CTR_RETFEN   0x20    /* Retry Fatal Enable */
#define  PCI_HT_RM_CTR_AA       0xc0    /* Allowed Attempts */
#define PCI_HT_RM_STS0          5       /* Status 0 Register */
#define  PCI_HT_RM_STS_RETSNT   0x01    /* Retry Sent */
#define  PCI_HT_RM_STS_CNTROL   0x02    /* Count Rollover */
#define  PCI_HT_RM_STS_SRCV     0x04    /* Stomp Received */
#define PCI_HT_RM_CTR1          6       /* Control 1 Register */
#define PCI_HT_RM_STS1          7       /* Status 1 Register */
#define PCI_HT_RM_CNT0          8       /* Retry Count 0 Register */
#define PCI_HT_RM_CNT1          10      /* Retry Count 1 Register */
#define PCI_HT_RM_SIZEOF        12

/* Vendor-Specific Capability (see PCI_EVNDR_xxx for the PCIe version) */
#define PCI_VNDR_LENGTH         2       /* Length byte */

/* PCI Express */
#define PCI_EXP_FLAGS           0x2     /* Capabilities register */
#define PCI_EXP_FLAGS_VERS      0x000f  /* Capability version */
#define PCI_EXP_FLAGS_TYPE      0x00f0  /* Device/Port type */
#define  PCI_EXP_TYPE_ENDPOINT  0x0     /* Express Endpoint */
#define  PCI_EXP_TYPE_LEG_END   0x1     /* Legacy Endpoint */
#define  PCI_EXP_TYPE_ROOT_PORT 0x4     /* Root Port */
#define  PCI_EXP_TYPE_UPSTREAM  0x5     /* Upstream Port */
#define  PCI_EXP_TYPE_DOWNSTREAM 0x6    /* Downstream Port */
#define  PCI_EXP_TYPE_PCI_BRIDGE 0x7    /* PCIe to PCI/PCI-X Bridge */
#define  PCI_EXP_TYPE_PCIE_BRIDGE 0x8   /* PCI/PCI-X to PCIe Bridge */
#define  PCI_EXP_TYPE_ROOT_INT_EP 0x9   /* Root Complex Integrated Endpoint */
#define  PCI_EXP_TYPE_ROOT_EC 0xa       /* Root Complex Event Collector */
#define PCI_EXP_FLAGS_SLOT      0x0100  /* Slot implemented */
#define PCI_EXP_FLAGS_IRQ       0x3e00  /* Interrupt message number */
#define PCI_EXP_DEVCAP          0x4     /* Device capabilities */
#define  PCI_EXP_DEVCAP_PAYLOAD 0x07    /* Max_Payload_Size */
#define  PCI_EXP_DEVCAP_PHANTOM 0x18    /* Phantom functions */
#define  PCI_EXP_DEVCAP_EXT_TAG 0x20    /* Extended tags */
#define  PCI_EXP_DEVCAP_L0S     0x1c0   /* L0s Acceptable Latency */
#define  PCI_EXP_DEVCAP_L1      0xe00   /* L1 Acceptable Latency */
#define  PCI_EXP_DEVCAP_ATN_BUT 0x1000  /* Attention Button Present */
#define  PCI_EXP_DEVCAP_ATN_IND 0x2000  /* Attention Indicator Present */
#define  PCI_EXP_DEVCAP_PWR_IND 0x4000  /* Power Indicator Present */
#define  PCI_EXP_DEVCAP_RBE     0x8000  /* Role-Based Error Reporting */
#define  PCI_EXP_DEVCAP_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */
#define  PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */
#define  PCI_EXP_DEVCAP_FLRESET 0x10000000 /* Function-Level Reset */
#define PCI_EXP_DEVCTL          0x8     /* Device Control */
#define  PCI_EXP_DEVCTL_CERE    0x0001  /* Correctable Error Reporting En. */
#define  PCI_EXP_DEVCTL_NFERE   0x0002  /* Non-Fatal Error Reporting Enable */
#define  PCI_EXP_DEVCTL_FERE    0x0004  /* Fatal Error Reporting Enable */
#define  PCI_EXP_DEVCTL_URRE    0x0008  /* Unsupported Request Reporting En. */
#define  PCI_EXP_DEVCTL_RELAXED 0x0010  /* Enable Relaxed Ordering */
#define  PCI_EXP_DEVCTL_PAYLOAD 0x00e0  /* Max_Payload_Size */
#define  PCI_EXP_DEVCTL_EXT_TAG 0x0100  /* Extended Tag Field Enable */
#define  PCI_EXP_DEVCTL_PHANTOM 0x0200  /* Phantom Functions Enable */
#define  PCI_EXP_DEVCTL_AUX_PME 0x0400  /* Auxiliary Power PM Enable */
#define  PCI_EXP_DEVCTL_NOSNOOP 0x0800  /* Enable No Snoop */
#define  PCI_EXP_DEVCTL_READRQ  0x7000  /* Max_Read_Request_Size */
#define  PCI_EXP_DEVCTL_BCRE    0x8000  /* Bridge Configuration Retry Enable */
#define  PCI_EXP_DEVCTL_FLRESET 0x8000  /* Function-Level Reset [bit shared with BCRE] */
#define PCI_EXP_DEVSTA          0xa     /* Device Status */
#define  PCI_EXP_DEVSTA_CED     0x01    /* Correctable Error Detected */
#define  PCI_EXP_DEVSTA_NFED    0x02    /* Non-Fatal Error Detected */
#define  PCI_EXP_DEVSTA_FED     0x04    /* Fatal Error Detected */
#define  PCI_EXP_DEVSTA_URD     0x08    /* Unsupported Request Detected */
#define  PCI_EXP_DEVSTA_AUXPD   0x10    /* AUX Power Detected */
#define  PCI_EXP_DEVSTA_TRPND   0x20    /* Transactions Pending */
#define PCI_EXP_LNKCAP          0xc     /* Link Capabilities */
#define  PCI_EXP_LNKCAP_SPEED   0x0000f /* Maximum Link Speed */
#define  PCI_EXP_LNKCAP_WIDTH   0x003f0 /* Maximum Link Width */
#define  PCI_EXP_LNKCAP_ASPM    0x00c00 /* Active State Power Management */
#define  PCI_EXP_LNKCAP_L0S     0x07000 /* L0s Exit Latency */
#define  PCI_EXP_LNKCAP_L1      0x38000 /* L1 Exit Latency */
#define  PCI_EXP_LNKCAP_CLOCKPM 0x40000 /* Clock Power Management */
#define  PCI_EXP_LNKCAP_SURPRISE 0x80000 /* Surprise Down Error Reporting */
#define  PCI_EXP_LNKCAP_DLLA    0x100000 /* Data Link Layer Active Reporting */
#define  PCI_EXP_LNKCAP_LBNC    0x200000 /* Link Bandwidth Notification Capability */
#define  PCI_EXP_LNKCAP_AOC     0x400000 /* ASPM Optionality Compliance */
#define  PCI_EXP_LNKCAP_PORT    0xff000000 /* Port Number */
#define PCI_EXP_LNKCTL          0x10    /* Link Control */
#define  PCI_EXP_LNKCTL_ASPM    0x0003  /* ASPM Control */
#define  PCI_EXP_LNKCTL_RCB     0x0008  /* Read Completion Boundary */
#define  PCI_EXP_LNKCTL_DISABLE 0x0010  /* Link Disable */
#define  PCI_EXP_LNKCTL_RETRAIN 0x0020  /* Retrain Link */
#define  PCI_EXP_LNKCTL_CLOCK   0x0040  /* Common Clock Configuration */
#define  PCI_EXP_LNKCTL_XSYNCH  0x0080  /* Extended Synch */
#define  PCI_EXP_LNKCTL_CLOCKPM 0x0100  /* Clock Power Management */
#define  PCI_EXP_LNKCTL_HWAUTWD 0x0200  /* Hardware Autonomous Width Disable */
#define  PCI_EXP_LNKCTL_BWMIE   0x0400  /* Bandwidth Mgmt Interrupt Enable */
#define  PCI_EXP_LNKCTL_AUTBWIE 0x0800  /* Autonomous Bandwidth Mgmt Interrupt Enable */
#define PCI_EXP_LNKSTA          0x12    /* Link Status */
#define  PCI_EXP_LNKSTA_SPEED   0x000f  /* Negotiated Link Speed */
#define  PCI_EXP_LNKSTA_WIDTH   0x03f0  /* Negotiated Link Width */
#define  PCI_EXP_LNKSTA_TR_ERR  0x0400  /* Training Error (obsolete) */
#define  PCI_EXP_LNKSTA_TRAIN   0x0800  /* Link Training */
#define  PCI_EXP_LNKSTA_SL_CLK  0x1000  /* Slot Clock Configuration */
#define  PCI_EXP_LNKSTA_DL_ACT  0x2000  /* Data Link Layer in DL_Active State */
#define  PCI_EXP_LNKSTA_BWMGMT  0x4000  /* Bandwidth Mgmt Status */
#define  PCI_EXP_LNKSTA_AUTBW   0x8000  /* Autonomous Bandwidth Mgmt Status */
#define PCI_EXP_SLTCAP          0x14    /* Slot Capabilities */
#define  PCI_EXP_SLTCAP_ATNB    0x0001  /* Attention Button Present */
#define  PCI_EXP_SLTCAP_PWRC    0x0002  /* Power Controller Present */
#define  PCI_EXP_SLTCAP_MRL     0x0004  /* MRL Sensor Present */
#define  PCI_EXP_SLTCAP_ATNI    0x0008  /* Attention Indicator Present */
#define  PCI_EXP_SLTCAP_PWRI    0x0010  /* Power Indicator Present */
#define  PCI_EXP_SLTCAP_HPS     0x0020  /* Hot-Plug Surprise */
#define  PCI_EXP_SLTCAP_HPC     0x0040  /* Hot-Plug Capable */
#define  PCI_EXP_SLTCAP_PWR_VAL 0x00007f80 /* Slot Power Limit Value */
#define  PCI_EXP_SLTCAP_PWR_SCL 0x00018000 /* Slot Power Limit Scale */
#define  PCI_EXP_SLTCAP_INTERLOCK 0x020000 /* Electromechanical Interlock Present */
#define  PCI_EXP_SLTCAP_NOCMDCOMP 0x040000 /* No Command Completed Support */
#define  PCI_EXP_SLTCAP_PSN     0xfff80000 /* Physical Slot Number */
#define PCI_EXP_SLTCTL          0x18    /* Slot Control */
#define  PCI_EXP_SLTCTL_ATNB    0x0001  /* Attention Button Pressed Enable */
#define  PCI_EXP_SLTCTL_PWRF    0x0002  /* Power Fault Detected Enable */
#define  PCI_EXP_SLTCTL_MRLS    0x0004  /* MRL Sensor Changed Enable */
#define  PCI_EXP_SLTCTL_PRSD    0x0008  /* Presence Detect Changed Enable */
#define  PCI_EXP_SLTCTL_CMDC    0x0010  /* Command Completed Interrupt Enable */
#define  PCI_EXP_SLTCTL_HPIE    0x0020  /* Hot-Plug Interrupt Enable */
#define  PCI_EXP_SLTCTL_ATNI    0x00c0  /* Attention Indicator Control */
#define  PCI_EXP_SLTCTL_PWRI    0x0300  /* Power Indicator Control */
#define  PCI_EXP_SLTCTL_PWRC    0x0400  /* Power Controller Control */
#define  PCI_EXP_SLTCTL_INTERLOCK 0x0800 /* Electromechanical Interlock Control */
#define  PCI_EXP_SLTCTL_LLCHG   0x1000  /* Data Link Layer State Changed Enable */
#define PCI_EXP_SLTSTA          0x1a    /* Slot Status */
#define  PCI_EXP_SLTSTA_ATNB    0x0001  /* Attention Button Pressed */
#define  PCI_EXP_SLTSTA_PWRF    0x0002  /* Power Fault Detected */
#define  PCI_EXP_SLTSTA_MRLS    0x0004  /* MRL Sensor Changed */
#define  PCI_EXP_SLTSTA_PRSD    0x0008  /* Presence Detect Changed */
#define  PCI_EXP_SLTSTA_CMDC    0x0010  /* Command Completed */
#define  PCI_EXP_SLTSTA_MRL_ST  0x0020  /* MRL Sensor State */
#define  PCI_EXP_SLTSTA_PRES    0x0040  /* Presence Detect State */
#define  PCI_EXP_SLTSTA_INTERLOCK 0x0080 /* Electromechanical Interlock Status */
#define  PCI_EXP_SLTSTA_LLCHG   0x0100  /* Data Link Layer State Changed */
#define PCI_EXP_RTCTL           0x1c    /* Root Control */
#define  PCI_EXP_RTCTL_SECEE    0x0001  /* System Error on Correctable Error */
#define  PCI_EXP_RTCTL_SENFEE   0x0002  /* System Error on Non-Fatal Error */
#define  PCI_EXP_RTCTL_SEFEE    0x0004  /* System Error on Fatal Error */
#define  PCI_EXP_RTCTL_PMEIE    0x0008  /* PME Interrupt Enable */
#define  PCI_EXP_RTCTL_CRSVIS   0x0010  /* Configuration Request Retry Status Visible to SW */
#define PCI_EXP_RTCAP           0x1e    /* Root Capabilities */
#define  PCI_EXP_RTCAP_CRSVIS   0x0001  /* Configuration Request Retry Status Visible to SW */
#define PCI_EXP_RTSTA           0x20    /* Root Status */
#define  PCI_EXP_RTSTA_PME_REQID   0x0000ffff /* PME Requester ID */
#define  PCI_EXP_RTSTA_PME_STATUS  0x00010000 /* PME Status */
#define  PCI_EXP_RTSTA_PME_PENDING 0x00020000 /* PME is Pending */
#define PCI_EXP_DEVCAP2                 0x24    /* Device capabilities 2 */
#define  PCI_EXP_DEVCAP2_TIMEOUT_RANGE(x)       ((x) & 0xf) /* Completion Timeout Ranges Supported */
#define  PCI_EXP_DEVCAP2_TIMEOUT_DIS    0x0010  /* Completion Timeout Disable Supported */
#define  PCI_EXP_DEVCAP2_ARI            0x0020  /* ARI Forwarding Supported */
#define  PCI_EXP_DEVCAP2_ATOMICOP_ROUTING       0x0040  /* AtomicOp Routing Supported */
#define  PCI_EXP_DEVCAP2_32BIT_ATOMICOP_COMP    0x0080  /* 32bit AtomicOp Completer Supported */
#define  PCI_EXP_DEVCAP2_64BIT_ATOMICOP_COMP    0x0100  /* 64bit AtomicOp Completer Supported */
#define  PCI_EXP_DEVCAP2_128BIT_CAS_COMP        0x0200  /* 128bit CAS Completer Supported */
#define  PCI_EXP_DEVCAP2_NROPRPRP       0x0400 /* No RO-enabled PR-PR Passing */
#define  PCI_EXP_DEVCAP2_LTR            0x0800  /* LTR supported */
#define  PCI_EXP_DEVCAP2_TPH_COMP(x)    (((x) >> 12) & 3) /* TPH Completer Supported */
#define  PCI_EXP_DEVCAP2_LN_CLS(x)      (((x) >> 14) & 3) /* LN System CLS Supported */
#define  PCI_EXP_DEVCAP2_10BIT_TAG_COMP 0x00010000 /* 10 Bit Tag Completer */
#define  PCI_EXP_DEVCAP2_10BIT_TAG_REQ  0x00020000 /* 10 Bit Tag Requester */
#define  PCI_EXP_DEVCAP2_OBFF(x)        (((x) >> 18) & 3) /* OBFF supported */
#define  PCI_EXP_DEVCAP2_EXTFMT         0x00100000 /* Extended Fmt Field Supported */
#define  PCI_EXP_DEVCAP2_EE_TLP         0x00200000 /* End-End TLP Prefix Supported */
#define  PCI_EXP_DEVCAP2_MEE_TLP(x)     (((x) >> 22) & 3) /* Max End-End TLP Prefixes */
#define  PCI_EXP_DEVCAP2_EPR(x)         (((x) >> 24) & 3) /* Emergency Power Reduction Supported */
#define  PCI_EXP_DEVCAP2_EPR_INIT       0x04000000 /* Emergency Power Reduction Initialization Required */
#define  PCI_EXP_DEVCAP2_FRS            0x80000000 /* FRS supported */
#define PCI_EXP_DEVCTL2                 0x28    /* Device Control */
#define  PCI_EXP_DEVCTL2_TIMEOUT_VALUE(x)       ((x) & 0xf) /* Completion Timeout Value */
#define  PCI_EXP_DEVCTL2_TIMEOUT_DIS    0x0010  /* Completion Timeout Disable */
#define  PCI_EXP_DEVCTL2_ARI            0x0020  /* ARI Forwarding */
#define  PCI_EXP_DEVCTL2_ATOMICOP_REQUESTER_EN  0x0040  /* AtomicOp RequesterEnable */
#define  PCI_EXP_DEVCTL2_ATOMICOP_EGRESS_BLOCK  0x0080  /* AtomicOp Egress Blocking */
#define  PCI_EXP_DEVCTL2_LTR            0x0400  /* LTR enabled */
#define  PCI_EXP_DEVCTL2_10BIT_TAG_REQ  0x1000 /* 10 Bit Tag Requester enabled */
#define  PCI_EXP_DEVCTL2_OBFF(x)                (((x) >> 13) & 3) /* OBFF enabled */
#define PCI_EXP_DEVSTA2                 0x2a    /* Device Status */
#define PCI_EXP_LNKCAP2                 0x2c    /* Link Capabilities */
#define  PCI_EXP_LNKCAP2_SPEED(x)       (((x) >> 1) & 0x7f)
#define  PCI_EXP_LNKCAP2_CROSSLINK      0x00000100 /* Crosslink Supported */
#define  PCI_EXP_LNKCAP2_RETIMER        0x00800000 /* Retimer Supported */
#define  PCI_EXP_LNKCAP2_2RETIMERS      0x01000000 /* 2 Retimers Supported */
#define  PCI_EXP_LNKCAP2_DRS            0x80000000 /* Device Readiness Status */
#define PCI_EXP_LNKCTL2                 0x30    /* Link Control */
#define  PCI_EXP_LNKCTL2_SPEED(x)       ((x) & 0xf) /* Target Link Speed */
#define  PCI_EXP_LNKCTL2_CMPLNC         0x0010  /* Enter Compliance */
#define  PCI_EXP_LNKCTL2_SPEED_DIS      0x0020  /* Hardware Autonomous Speed Disable */
#define  PCI_EXP_LNKCTL2_DEEMPHASIS(x)  (((x) >> 6) & 1) /* Selectable De-emphasis */
#define  PCI_EXP_LNKCTL2_MARGIN(x)      (((x) >> 7) & 7) /* Transmit Margin */
#define  PCI_EXP_LNKCTL2_MOD_CMPLNC     0x0400  /* Enter Modified Compliance */
#define  PCI_EXP_LNKCTL2_CMPLNC_SOS     0x0800  /* Compliance SOS */
#define  PCI_EXP_LNKCTL2_COM_DEEMPHASIS(x) (((x) >> 12) & 0xf) /* Compliance Preset/De-emphasis */
#define PCI_EXP_LNKSTA2                 0x32    /* Link Status */
#define  PCI_EXP_LINKSTA2_DEEMPHASIS(x) ((x) & 1)       /* Current De-emphasis Level */
#define  PCI_EXP_LINKSTA2_EQU_COMP      0x02    /* Equalization Complete */
#define  PCI_EXP_LINKSTA2_EQU_PHASE1    0x04    /* Equalization Phase 1 Successful */
#define  PCI_EXP_LINKSTA2_EQU_PHASE2    0x08    /* Equalization Phase 2 Successful */
#define  PCI_EXP_LINKSTA2_EQU_PHASE3    0x10    /* Equalization Phase 3 Successful */
#define  PCI_EXP_LINKSTA2_EQU_REQ       0x20    /* Link Equalization Request */
#define  PCI_EXP_LINKSTA2_RETIMER       0x0040  /* Retimer Detected */
#define  PCI_EXP_LINKSTA2_2RETIMERS     0x0080  /* 2 Retimers Detected */
#define  PCI_EXP_LINKSTA2_CROSSLINK(x)  (((x) >> 8) & 0x3) /* Crosslink Res */
#define  PCI_EXP_LINKSTA2_COMPONENT(x)  (((x) >> 12) & 0x7) /* Presence */
#define  PCI_EXP_LINKSTA2_DRS_RCVD      0x8000  /* DRS Msg Received */
#define PCI_EXP_SLTCAP2                 0x34    /* Slot Capabilities */
#define PCI_EXP_SLTCTL2                 0x38    /* Slot Control */
#define PCI_EXP_SLTSTA2                 0x3a    /* Slot Status */

/* MSI-X */
#define  PCI_MSIX_ENABLE        0x8000
#define  PCI_MSIX_MASK          0x4000
#define  PCI_MSIX_TABSIZE       0x07ff
#define PCI_MSIX_TABLE          4
#define PCI_MSIX_PBA            8
#define  PCI_MSIX_BIR           0x7

/* Subsystem vendor/device ID for PCI bridges */
#define PCI_SSVID_VENDOR        4
#define PCI_SSVID_DEVICE        6

/* PCI Advanced Features */
#define PCI_AF_CAP              3
#define  PCI_AF_CAP_TP          0x01
#define  PCI_AF_CAP_FLR         0x02
#define PCI_AF_CTRL             4
#define  PCI_AF_CTRL_FLR        0x01
#define PCI_AF_STATUS           5
#define  PCI_AF_STATUS_TP       0x01

/* SATA Host Bus Adapter */
#define PCI_SATA_HBA_BARS       4
#define PCI_SATA_HBA_REG0       8

/* Enhanced Allocation (EA) */
#define PCI_EA_CAP_TYPE1_SECONDARY      4
#define PCI_EA_CAP_TYPE1_SUBORDINATE    5
/* EA Entry header */
#define PCI_EA_CAP_ENT_WRITABLE 0x40000000      /* Writable: 1 = RW, 0 = HwInit */
#define PCI_EA_CAP_ENT_ENABLE   0x80000000      /* Enable for this entry */

/*** Definitions of extended capabilities ***/

/* Advanced Error Reporting */
#define PCI_ERR_UNCOR_STATUS    4       /* Uncorrectable Error Status */
#define  PCI_ERR_UNC_TRAIN      0x00000001      /* Undefined in PCIe rev1.1 & 2.0 spec */
#define  PCI_ERR_UNC_DLP        0x00000010      /* Data Link Protocol */
#define  PCI_ERR_UNC_SDES       0x00000020      /* Surprise Down Error */
#define  PCI_ERR_UNC_POISON_TLP 0x00001000      /* Poisoned TLP */
#define  PCI_ERR_UNC_FCP        0x00002000      /* Flow Control Protocol */
#define  PCI_ERR_UNC_COMP_TIME  0x00004000      /* Completion Timeout */
#define  PCI_ERR_UNC_COMP_ABORT 0x00008000      /* Completer Abort */
#define  PCI_ERR_UNC_UNX_COMP   0x00010000      /* Unexpected Completion */
#define  PCI_ERR_UNC_RX_OVER    0x00020000      /* Receiver Overflow */
#define  PCI_ERR_UNC_MALF_TLP   0x00040000      /* Malformed TLP */
#define  PCI_ERR_UNC_ECRC       0x00080000      /* ECRC Error Status */
#define  PCI_ERR_UNC_UNSUP      0x00100000      /* Unsupported Request */
#define  PCI_ERR_UNC_ACS_VIOL   0x00200000      /* ACS Violation */
#define PCI_ERR_UNCOR_MASK      8       /* Uncorrectable Error Mask */
        /* Same bits as above */
#define PCI_ERR_UNCOR_SEVER     12      /* Uncorrectable Error Severity */
        /* Same bits as above */
#define PCI_ERR_COR_STATUS      16      /* Correctable Error Status */
#define  PCI_ERR_COR_RCVR       0x00000001      /* Receiver Error Status */
#define  PCI_ERR_COR_BAD_TLP    0x00000040      /* Bad TLP Status */
#define  PCI_ERR_COR_BAD_DLLP   0x00000080      /* Bad DLLP Status */
#define  PCI_ERR_COR_REP_ROLL   0x00000100      /* REPLAY_NUM Rollover */
#define  PCI_ERR_COR_REP_TIMER  0x00001000      /* Replay Timer Timeout */
#define  PCI_ERR_COR_REP_ANFE   0x00002000      /* Advisory Non-Fatal Error */
#define PCI_ERR_COR_MASK        20      /* Correctable Error Mask */
        /* Same bits as above */
#define PCI_ERR_CAP             24      /* Advanced Error Capabilities */
#define  PCI_ERR_CAP_FEP(x)     ((x) & 31)      /* First Error Pointer */
#define  PCI_ERR_CAP_ECRC_GENC  0x00000020      /* ECRC Generation Capable */
#define  PCI_ERR_CAP_ECRC_GENE  0x00000040      /* ECRC Generation Enable */
#define  PCI_ERR_CAP_ECRC_CHKC  0x00000080      /* ECRC Check Capable */
#define  PCI_ERR_CAP_ECRC_CHKE  0x00000100      /* ECRC Check Enable */
#define  PCI_ERR_CAP_MULT_HDRC  0x00000200      /* Multiple Header Capable */
#define  PCI_ERR_CAP_MULT_HDRE  0x00000400      /* Multiple Header Enable */
#define  PCI_ERR_CAP_TLP_PFX    0x00000800      /* TLP Prefix Log Present */
#define  PCI_ERR_CAP_HDR_LOG    0x00001000      /* Completion Timeout Prefix/Header Log Capable */
#define PCI_ERR_HEADER_LOG      28      /* Header Log Register (16 bytes) */
#define PCI_ERR_ROOT_COMMAND    44      /* Root Error Command */
#define  PCI_ERR_ROOT_CMD_COR_EN        0x00000001 /* Correctable Error Reporting Enable */
#define  PCI_ERR_ROOT_CMD_NONFATAL_EN   0x00000002 /* Non-Fatal Error Reporting Enable*/
#define  PCI_ERR_ROOT_CMD_FATAL_EN      0x00000004 /* Fatal Error Reporting Enable */
#define PCI_ERR_ROOT_STATUS     48      /* Root Error Status */
#define  PCI_ERR_ROOT_COR_RCV           0x00000001 /* ERR_COR Received */
#define  PCI_ERR_ROOT_MULTI_COR_RCV     0x00000002 /* Multiple ERR_COR Received */
#define  PCI_ERR_ROOT_UNCOR_RCV         0x00000004 /* ERR_FATAL/NONFATAL Received */
#define  PCI_ERR_ROOT_MULTI_UNCOR_RCV   0x00000008 /* Multiple ERR_FATAL/NONFATAL Received */
#define  PCI_ERR_ROOT_FIRST_FATAL       0x00000010 /* First Uncorrectable Fatal */
#define  PCI_ERR_ROOT_NONFATAL_RCV      0x00000020 /* Non-Fatal Error Messages Received */
#define  PCI_ERR_ROOT_FATAL_RCV         0x00000040 /* Fatal Error Messages Received */
#define  PCI_ERR_MSG_NUM(x)     (((x) >> 27) & 0x1f) /* MSI/MSI-X vector */
#define PCI_ERR_ROOT_COR_SRC    52
#define PCI_ERR_ROOT_SRC        54

/* Virtual Channel */
#define PCI_VC_PORT_REG1        4
#define PCI_VC_PORT_REG2        8
#define PCI_VC_PORT_CTRL        12
#define PCI_VC_PORT_STATUS      14
#define PCI_VC_RES_CAP          16
#define PCI_VC_RES_CTRL         20
#define PCI_VC_RES_STATUS       26

/* Power Budgeting */
#define PCI_PWR_DSR             4       /* Data Select Register */
#define PCI_PWR_DATA            8       /* Data Register */
#define  PCI_PWR_DATA_BASE(x)   ((x) & 0xff)        /* Base Power */
#define  PCI_PWR_DATA_SCALE(x)  (((x) >> 8) & 3)    /* Data Scale */
#define  PCI_PWR_DATA_PM_SUB(x) (((x) >> 10) & 7)   /* PM Sub State */
#define  PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */
#define  PCI_PWR_DATA_TYPE(x)   (((x) >> 15) & 7)   /* Type */
#define  PCI_PWR_DATA_RAIL(x)   (((x) >> 18) & 7)   /* Power Rail */
#define PCI_PWR_CAP             12      /* Capability */
#define  PCI_PWR_CAP_BUDGET(x)  ((x) & 1)       /* Included in system budget */

/* Root Complex Link */
#define PCI_RCLINK_ESD          4       /* Element Self Description */
#define PCI_RCLINK_LINK1        16      /* First Link Entry */
#define  PCI_RCLINK_LINK_DESC   0       /* Link Entry: Description */
#define  PCI_RCLINK_LINK_ADDR   8       /* Link Entry: Address (64-bit) */
#define  PCI_RCLINK_LINK_SIZE   16      /* Link Entry: sizeof */

/* Root Complex Event Collector Endpoint Association */
#define  PCI_RCEC_EP_CAP_VER(reg)       (((reg) >> 16) & 0xf)
#define  PCI_RCEC_BUSN_REG_VER  0x02    /* as per PCIe sec 7.9.10.1 */
#define  PCI_RCEC_RCIEP_BMAP    0x0004  /* as per PCIe sec 7.9.10.2 */
#define  PCI_RCEC_BUSN_REG      0x0008  /* as per PCIe sec 7.9.10.3 */

/* PCIe Vendor-Specific Capability */
#define PCI_EVNDR_HEADER        4       /* Vendor-Specific Header */
#define PCI_EVNDR_REGISTERS     8       /* Vendor-Specific Registers */

/* PCIe Designated Vendor-Specific Capability */
#define PCI_DVSEC_HEADER1       4       /* Designated Vendor-Specific Header 1 */
#define PCI_DVSEC_HEADER2       8       /* Designated Vendor-Specific Header 2 */
#define PCI_DVSEC_VENDOR_ID_CXL 0x1e98  /* Designated Vendor-Specific Vendor ID for CXL */
#define PCI_DVSEC_ID_CXL        0       /* Designated Vendor-Specific ID for Intel CXL */

/* PCIe CXL Designated Vendor-Specific Capabilities, Control, Status */
#define PCI_CXL_CAP             0x0a    /* CXL Capability Register */
#define  PCI_CXL_CAP_CACHE      0x0001  /* CXL.cache Protocol Support */
#define  PCI_CXL_CAP_IO         0x0002  /* CXL.io Protocol Support */
#define  PCI_CXL_CAP_MEM        0x0004  /* CXL.mem Protocol Support */
#define  PCI_CXL_CAP_MEM_HWINIT 0x0008  /* CXL.mem Initializes with HW/FW Support */
#define  PCI_CXL_CAP_HDM_CNT(x) (((x) & (3 << 4)) >> 4) /* CXL Number of HDM ranges */
#define  PCI_CXL_CAP_VIRAL      0x4000  /* CXL Viral Handling Support */
#define PCI_CXL_CTRL            0x0c    /* CXL Control Register */
#define  PCI_CXL_CTRL_CACHE     0x0001  /* CXL.cache Protocol Enable */
#define  PCI_CXL_CTRL_IO        0x0002  /* CXL.io Protocol Enable */
#define  PCI_CXL_CTRL_MEM       0x0004  /* CXL.mem Protocol Enable */
#define  PCI_CXL_CTRL_CACHE_SF_COV(x)   (((x) & (0x1f << 3)) >> 3) /* Snoop Filter Coverage */
#define  PCI_CXL_CTRL_CACHE_SF_GRAN(x)  (((x) & (0x7 << 8)) >> 8) /* Snoop Filter Granularity */
#define  PCI_CXL_CTRL_CACHE_CLN 0x0800  /* CXL.cache Performance Hint on Clean Evictions */
#define  PCI_CXL_CTRL_VIRAL     0x4000  /* CXL Viral Handling Enable */
#define PCI_CXL_STATUS          0x0e    /* CXL Status Register */
#define  PCI_CXL_STATUS_VIRAL   0x4000  /* CXL Viral Handling Status */

/* Access Control Services */
#define PCI_ACS_CAP             0x04    /* ACS Capability Register */
#define PCI_ACS_CAP_VALID       0x0001  /* ACS Source Validation */
#define PCI_ACS_CAP_BLOCK       0x0002  /* ACS Translation Blocking */
#define PCI_ACS_CAP_REQ_RED     0x0004  /* ACS P2P Request Redirect */
#define PCI_ACS_CAP_CMPLT_RED   0x0008  /* ACS P2P Completion Redirect */
#define PCI_ACS_CAP_FORWARD     0x0010  /* ACS Upstream Forwarding */
#define PCI_ACS_CAP_EGRESS      0x0020  /* ACS P2P Egress Control */
#define PCI_ACS_CAP_TRANS       0x0040  /* ACS Direct Translated P2P */
#define PCI_ACS_CAP_VECTOR(x)   (((x) >> 8) & 0xff) /* Egress Control Vector Size */
#define PCI_ACS_CTRL            0x06    /* ACS Control Register */
#define PCI_ACS_CTRL_VALID      0x0001  /* ACS Source Validation Enable */
#define PCI_ACS_CTRL_BLOCK      0x0002  /* ACS Translation Blocking Enable */
#define PCI_ACS_CTRL_REQ_RED    0x0004  /* ACS P2P Request Redirect Enable */
#define PCI_ACS_CTRL_CMPLT_RED  0x0008  /* ACS P2P Completion Redirect Enable */
#define PCI_ACS_CTRL_FORWARD    0x0010  /* ACS Upstream Forwarding Enable */
#define PCI_ACS_CTRL_EGRESS     0x0020  /* ACS P2P Egress Control Enable */
#define PCI_ACS_CTRL_TRANS      0x0040  /* ACS Direct Translated P2P Enable */
#define PCI_ACS_EGRESS_CTRL     0x08    /* Egress Control Vector */

/* Alternative Routing-ID Interpretation */
#define PCI_ARI_CAP             0x04    /* ARI Capability Register */
#define  PCI_ARI_CAP_MFVC       0x0001  /* MFVC Function Groups Capability */
#define  PCI_ARI_CAP_ACS        0x0002  /* ACS Function Groups Capability */
#define  PCI_ARI_CAP_NFN(x)     (((x) >> 8) & 0xff) /* Next Function Number */
#define PCI_ARI_CTRL            0x06    /* ARI Control Register */
#define  PCI_ARI_CTRL_MFVC      0x0001  /* MFVC Function Groups Enable */
#define  PCI_ARI_CTRL_ACS       0x0002  /* ACS Function Groups Enable */
#define  PCI_ARI_CTRL_FG(x)     (((x) >> 4) & 7) /* Function Group */

/* Address Translation Service */
#define PCI_ATS_CAP             0x04    /* ATS Capability Register */
#define  PCI_ATS_CAP_IQD(x)     ((x) & 0x1f) /* Invalidate Queue Depth */
#define PCI_ATS_CTRL            0x06    /* ATS Control Register */
#define  PCI_ATS_CTRL_STU(x)    ((x) & 0x1f) /* Smallest Translation Unit */
#define  PCI_ATS_CTRL_ENABLE    0x8000  /* ATS Enable */

/* Single Root I/O Virtualization */
#define PCI_IOV_CAP             0x04    /* SR-IOV Capability Register */
#define  PCI_IOV_CAP_VFM        0x00000001 /* VF Migration Capable */
#define  PCI_IOV_CAP_VF_10BIT_TAG_REQ 0x00000004 /* VF 10-Bit Tag Requester Supported */
#define  PCI_IOV_CAP_IMN(x)     ((x) >> 21) /* VF Migration Interrupt Message Number */
#define PCI_IOV_CTRL            0x08    /* SR-IOV Control Register */
#define  PCI_IOV_CTRL_VFE       0x0001  /* VF Enable */
#define  PCI_IOV_CTRL_VFME      0x0002  /* VF Migration Enable */
#define  PCI_IOV_CTRL_VFMIE     0x0004  /* VF Migration Interrupt Enable */
#define  PCI_IOV_CTRL_MSE       0x0008  /* VF MSE */
#define  PCI_IOV_CTRL_ARI       0x0010  /* ARI Capable Hierarchy */
#define  PCI_IOV_CTRL_VF_10BIT_TAG_REQ_EN 0x0020 /* VF 10-Bit Tag Requester Enable */
#define PCI_IOV_STATUS          0x0a    /* SR-IOV Status Register */
#define  PCI_IOV_STATUS_MS      0x0001  /* VF Migration Status */
#define PCI_IOV_INITIALVF       0x0c    /* Number of VFs that are initially associated */
#define PCI_IOV_TOTALVF         0x0e    /* Maximum number of VFs that could be associated */
#define PCI_IOV_NUMVF           0x10    /* Number of VFs that are available */
#define PCI_IOV_FDL             0x12    /* Function Dependency Link */
#define PCI_IOV_OFFSET          0x14    /* First VF Offset */
#define PCI_IOV_STRIDE          0x16    /* Routing ID offset from one VF to the next one */
#define PCI_IOV_DID             0x1a    /* VF Device ID */
#define PCI_IOV_SUPPS           0x1c    /* Supported Page Sizes */
#define PCI_IOV_SYSPS           0x20    /* System Page Size */
#define PCI_IOV_BAR_BASE        0x24    /* VF BAR0, VF BAR1, ... VF BAR5 */
#define PCI_IOV_NUM_BAR         6       /* Number of VF BARs */
#define PCI_IOV_MSAO            0x3c    /* VF Migration State Array Offset */
#define PCI_IOV_MSA_BIR(x)      ((x) & 7) /* VF Migration State BIR */
#define PCI_IOV_MSA_OFFSET(x)   ((x) & 0xfffffff8) /* VF Migration State Offset */

/* Multicast */
#define PCI_MCAST_CAP           0x04    /* Multicast Capability */
#define  PCI_MCAST_CAP_MAX_GROUP(x) ((x) & 0x3f)
#define  PCI_MCAST_CAP_WIN_SIZE(x) (((x) >> 8) & 0x3f)
#define  PCI_MCAST_CAP_ECRC     0x8000  /* ECRC Regeneration Supported */
#define PCI_MCAST_CTRL          0x06    /* Multicast Control */
#define  PCI_MCAST_CTRL_NUM_GROUP(x) ((x) & 0x3f)
#define  PCI_MCAST_CTRL_ENABLE  0x8000  /* MC Enabled */
#define PCI_MCAST_BAR           0x08    /* Base Address */
#define  PCI_MCAST_BAR_INDEX_POS(x)     ((u32) ((x) & 0x3f))
#define  PCI_MCAST_BAR_MASK     (~0xfffUL)
#define PCI_MCAST_RCV           0x10    /* Receive */
#define PCI_MCAST_BLOCK         0x18    /* Block All */
#define PCI_MCAST_BLOCK_UNTRANS 0x20    /* Block Untranslated */
#define PCI_MCAST_OVL_BAR       0x28    /* Overlay BAR */
#define  PCI_MCAST_OVL_SIZE(x)  ((u32) ((x) & 0x3f))
#define  PCI_MCAST_OVL_MASK     (~0x3fUL)

/* Page Request Interface */
#define PCI_PRI_CTRL            0x04    /* PRI Control Register */
#define  PCI_PRI_CTRL_ENABLE    0x01    /* Enable */
#define  PCI_PRI_CTRL_RESET     0x02    /* Reset */
#define PCI_PRI_STATUS          0x06    /* PRI status register */
#define  PCI_PRI_STATUS_RF      0x001   /* Response Failure */
#define  PCI_PRI_STATUS_UPRGI   0x002   /* Unexpected PRG index */
#define  PCI_PRI_STATUS_STOPPED 0x100   /* PRI Stopped */
#define PCI_PRI_MAX_REQ         0x08    /* PRI max reqs supported */
#define PCI_PRI_ALLOC_REQ       0x0c    /* PRI max reqs allowed */

/* Transaction Processing Hints */
#define PCI_TPH_CAPABILITIES    4
#define   PCI_TPH_INTVEC_SUP    (1<<1)  /* Supports interrupt vector mode */
#define   PCI_TPH_DEV_SUP       (1<<2)  /* Device specific mode supported */
#define   PCI_TPH_EXT_REQ_SUP   (1<<8)  /* Supports extended requests */
#define   PCI_TPH_ST_LOC_MASK   (3<<9)  /* Steering table location bits */
#define     PCI_TPH_ST_NONE     (0<<9)  /* No steering table */
#define     PCI_TPH_ST_CAP      (1<<9)  /* Steering table in TPH cap */
#define     PCI_TPH_ST_MSIX     (2<<9)  /* Steering table in MSI-X table */
#define   PCI_TPH_ST_SIZE_SHIFT (16)    /* Encoded as size - 1 */

/* Latency Tolerance Reporting */
#define PCI_LTR_MAX_SNOOP       4       /* 16 bit value */
#define   PCI_LTR_VALUE_MASK    (0x3ff)
#define   PCI_LTR_SCALE_SHIFT   (10)
#define   PCI_LTR_SCALE_MASK    (7)
#define PCI_LTR_MAX_NOSNOOP     6       /* 16 bit value */

/* Secondary PCI Express Extended Capability */
#define PCI_SEC_LNKCTL3         4       /* Link Control 3 register */
#define  PCI_SEC_LNKCTL3_PERFORM_LINK_EQU       0x01
#define  PCI_SEC_LNKCTL3_LNK_EQU_REQ_INTR_EN    0x02
#define  PCI_SEC_LNKCTL3_ENBL_LOWER_SKP_OS_GEN_VEC(x) ((x >> 8) & 0x7F)
#define PCI_SEC_LANE_ERR        8       /* Lane Error status register */
#define PCI_SEC_LANE_EQU_CTRL   12      /* Lane Equalization control register */

/* Process Address Space ID */
#define PCI_PASID_CAP           0x04    /* PASID feature register */
#define  PCI_PASID_CAP_EXEC     0x02    /* Exec permissions Supported */
#define  PCI_PASID_CAP_PRIV     0x04    /* Privilege Mode Supported */
#define  PCI_PASID_CAP_WIDTH(x) (((x) >> 8) & 0x1f) /* Max PASID Width */
#define PCI_PASID_CTRL          0x06    /* PASID control register */
#define  PCI_PASID_CTRL_ENABLE  0x01    /* Enable bit */
#define  PCI_PASID_CTRL_EXEC    0x02    /* Exec permissions Enable */
#define  PCI_PASID_CTRL_PRIV    0x04    /* Privilege Mode Enable */

#define PCI_DPC_CAP             4       /* DPC Capability */
#define  PCI_DPC_CAP_INT_MSG(x) ((x) & 0x1f)    /* DPC Interrupt Message Number */
#define  PCI_DPC_CAP_RP_EXT     0x20            /* DPC Root Port Extensions */
#define  PCI_DPC_CAP_TLP_BLOCK  0x40            /* DPC Poisoned TLP Egress Blocking */
#define  PCI_DPC_CAP_SW_TRIGGER 0x80            /* DPC Software Trigger */
#define  PCI_DPC_CAP_RP_LOG(x)  (((x) >> 8) & 0xf) /* DPC RP PIO Log Size */
#define  PCI_DPC_CAP_DL_ACT_ERR 0x1000          /* DPC DL_Active ERR_COR Signal */
#define PCI_DPC_CTL             6       /* DPC Control */
#define  PCI_DPC_CTL_TRIGGER(x) ((x) & 0x3)     /* DPC Trigger Enable */
#define  PCI_DPC_CTL_CMPL       0x4             /* DPC Completion Control */
#define  PCI_DPC_CTL_INT        0x8             /* DPC Interrupt Enabled */
#define  PCI_DPC_CTL_ERR_COR    0x10            /* DPC ERR_COR Enabled */
#define  PCI_DPC_CTL_TLP        0x20            /* DPC Poisoned TLP Egress Blocking Enabled */
#define  PCI_DPC_CTL_SW_TRIGGER 0x40            /* DPC Software Trigger */
#define  PCI_DPC_CTL_DL_ACTIVE  0x80            /* DPC DL_Active ERR_COR Enable */
#define PCI_DPC_STATUS          8       /* DPC STATUS */
#define  PCI_DPC_STS_TRIGGER    0x01            /* DPC Trigger Status */
#define  PCI_DPC_STS_REASON(x) (((x) >> 1) & 0x3) /* DPC Trigger Reason */
#define  PCI_DPC_STS_INT        0x08            /* DPC Interrupt Status */
#define  PCI_DPC_STS_RP_BUSY    0x10            /* DPC Root Port Busy */
#define  PCI_DPC_STS_TRIGGER_EXT(x) (((x) >> 5) & 0x3) /* Trigger Reason Extension */
#define  PCI_DPC_STS_PIO_FEP(x) (((x) >> 8) & 0x1f) /* DPC PIO First Error Pointer */
#define PCI_DPC_SOURCE          10      /* DPC Source ID */

/* L1 PM Substates Extended Capability */
#define PCI_L1PM_SUBSTAT_CAP    0x4     /* L1 PM Substate Capability */
#define  PCI_L1PM_SUBSTAT_CAP_PM_L12    0x1     /* PCI-PM L1.2 Supported */
#define  PCI_L1PM_SUBSTAT_CAP_PM_L11    0x2     /* PCI-PM L1.1 Supported */
#define  PCI_L1PM_SUBSTAT_CAP_ASPM_L12  0x4     /* ASPM L1.2 Supported */
#define  PCI_L1PM_SUBSTAT_CAP_ASPM_L11  0x8     /* ASPM L1.1 Supported */
#define  PCI_L1PM_SUBSTAT_CAP_L1PM_SUPP 0x16    /* L1 PM Substates supported */
#define PCI_L1PM_SUBSTAT_CTL1   0x8     /* L1 PM Substate Control 1 */
#define  PCI_L1PM_SUBSTAT_CTL1_PM_L12   0x1     /* PCI-PM L1.2 Enable */
#define  PCI_L1PM_SUBSTAT_CTL1_PM_L11   0x2     /* PCI-PM L1.1 Enable */
#define  PCI_L1PM_SUBSTAT_CTL1_ASPM_L12 0x4     /* ASPM L1.2 Enable */
#define  PCI_L1PM_SUBSTAT_CTL1_ASPM_L11 0x8     /* ASPM L1.1 Enable */
#define PCI_L1PM_SUBSTAT_CTL2   0xC     /* L1 PM Substate Control 2 */

/* Data Object Exchange Extended Capability */
#define PCI_DOE_CAP             0x4     /* DOE Capabilities Register */
#define  PCI_DOE_CAP_INT_SUPP           0x1     /* Interrupt Support */
#define  PCI_DOE_CAP_INT_MSG(x) (((x) >> 1) & 0x7ff) /* DOE Interrupt Message Number */
#define PCI_DOE_CTL             0x8     /* DOE Control Register */
#define  PCI_DOE_CTL_ABORT              0x1     /* DOE Abort */
#define  PCI_DOE_CTL_INT                0x2     /* DOE Interrupt Enable */
#define  PCI_DOE_CTL_GO                 0x80000000 /* DOE Go */
#define PCI_DOE_STS             0xC     /* DOE Status Register */
#define  PCI_DOE_STS_BUSY               0x1     /* DOE Busy */
#define  PCI_DOE_STS_INT                0x2     /* DOE Interrupt Status */
#define  PCI_DOE_STS_ERROR              0x3     /* DOE Error */
#define  PCI_DOE_STS_OBJECT_READY       0x80000000 /* Data Object Ready */

/*
 * The PCI interface treats multi-function devices as independent
 * devices.  The slot/function address of each device is encoded
 * in a single byte as follows:
 *
 *      7:3 = slot
 *      2:0 = function
 */
#define PCI_DEVFN(slot,func)    ((((slot) & 0x1f) << 3) | ((func) & 0x07))
#define PCI_SLOT(devfn)         (((devfn) >> 3) & 0x1f)
#define PCI_FUNC(devfn)         ((devfn) & 0x07)

/* Device classes and subclasses */

#define PCI_CLASS_NOT_DEFINED           0x0000
#define PCI_CLASS_NOT_DEFINED_VGA       0x0001

#define PCI_BASE_CLASS_STORAGE          0x01
#define PCI_CLASS_STORAGE_SCSI          0x0100
#define PCI_CLASS_STORAGE_IDE           0x0101
#define PCI_CLASS_STORAGE_FLOPPY        0x0102
#define PCI_CLASS_STORAGE_IPI           0x0103
#define PCI_CLASS_STORAGE_RAID          0x0104
#define PCI_CLASS_STORAGE_ATA           0x0105
#define PCI_CLASS_STORAGE_SATA          0x0106
#define PCI_CLASS_STORAGE_SAS           0x0107
#define PCI_CLASS_STORAGE_OTHER         0x0180

#define PCI_BASE_CLASS_NETWORK          0x02
#define PCI_CLASS_NETWORK_ETHERNET      0x0200
#define PCI_CLASS_NETWORK_TOKEN_RING    0x0201
#define PCI_CLASS_NETWORK_FDDI          0x0202
#define PCI_CLASS_NETWORK_ATM           0x0203
#define PCI_CLASS_NETWORK_ISDN          0x0204
#define PCI_CLASS_NETWORK_OTHER         0x0280

#define PCI_BASE_CLASS_DISPLAY          0x03
#define PCI_CLASS_DISPLAY_VGA           0x0300
#define PCI_CLASS_DISPLAY_XGA           0x0301
#define PCI_CLASS_DISPLAY_3D            0x0302
#define PCI_CLASS_DISPLAY_OTHER         0x0380

#define PCI_BASE_CLASS_MULTIMEDIA       0x04
#define PCI_CLASS_MULTIMEDIA_VIDEO      0x0400
#define PCI_CLASS_MULTIMEDIA_AUDIO      0x0401
#define PCI_CLASS_MULTIMEDIA_PHONE      0x0402
#define PCI_CLASS_MULTIMEDIA_AUDIO_DEV  0x0403
#define PCI_CLASS_MULTIMEDIA_OTHER      0x0480

#define PCI_BASE_CLASS_MEMORY           0x05
#define  PCI_CLASS_MEMORY_RAM           0x0500
#define  PCI_CLASS_MEMORY_FLASH         0x0501
#define  PCI_CLASS_MEMORY_OTHER         0x0580

#define PCI_BASE_CLASS_BRIDGE           0x06
#define  PCI_CLASS_BRIDGE_HOST          0x0600
#define  PCI_CLASS_BRIDGE_ISA           0x0601
#define  PCI_CLASS_BRIDGE_EISA          0x0602
#define  PCI_CLASS_BRIDGE_MC            0x0603
#define  PCI_CLASS_BRIDGE_PCI           0x0604
#define  PCI_CLASS_BRIDGE_PCMCIA        0x0605
#define  PCI_CLASS_BRIDGE_NUBUS         0x0606
#define  PCI_CLASS_BRIDGE_CARDBUS       0x0607
#define  PCI_CLASS_BRIDGE_RACEWAY       0x0608
#define  PCI_CLASS_BRIDGE_PCI_SEMI      0x0609
#define  PCI_CLASS_BRIDGE_IB_TO_PCI     0x060a
#define  PCI_CLASS_BRIDGE_OTHER         0x0680

#define PCI_BASE_CLASS_COMMUNICATION    0x07
#define PCI_CLASS_COMMUNICATION_SERIAL  0x0700
#define PCI_CLASS_COMMUNICATION_PARALLEL 0x0701
#define PCI_CLASS_COMMUNICATION_MSERIAL 0x0702
#define PCI_CLASS_COMMUNICATION_MODEM   0x0703
#define PCI_CLASS_COMMUNICATION_OTHER   0x0780

#define PCI_BASE_CLASS_SYSTEM           0x08
#define PCI_CLASS_SYSTEM_PIC            0x0800
#define PCI_CLASS_SYSTEM_DMA            0x0801
#define PCI_CLASS_SYSTEM_TIMER          0x0802
#define PCI_CLASS_SYSTEM_RTC            0x0803
#define PCI_CLASS_SYSTEM_PCI_HOTPLUG    0x0804
#define PCI_CLASS_SYSTEM_OTHER          0x0880

#define PCI_BASE_CLASS_INPUT            0x09
#define PCI_CLASS_INPUT_KEYBOARD        0x0900
#define PCI_CLASS_INPUT_PEN             0x0901
#define PCI_CLASS_INPUT_MOUSE           0x0902
#define PCI_CLASS_INPUT_SCANNER         0x0903
#define PCI_CLASS_INPUT_GAMEPORT        0x0904
#define PCI_CLASS_INPUT_OTHER           0x0980

#define PCI_BASE_CLASS_DOCKING          0x0a
#define PCI_CLASS_DOCKING_GENERIC       0x0a00
#define PCI_CLASS_DOCKING_OTHER         0x0a80

#define PCI_BASE_CLASS_PROCESSOR        0x0b
#define PCI_CLASS_PROCESSOR_386         0x0b00
#define PCI_CLASS_PROCESSOR_486         0x0b01
#define PCI_CLASS_PROCESSOR_PENTIUM     0x0b02
#define PCI_CLASS_PROCESSOR_ALPHA       0x0b10
#define PCI_CLASS_PROCESSOR_POWERPC     0x0b20
#define PCI_CLASS_PROCESSOR_MIPS        0x0b30
#define PCI_CLASS_PROCESSOR_CO          0x0b40

#define PCI_BASE_CLASS_SERIAL           0x0c
#define PCI_CLASS_SERIAL_FIREWIRE       0x0c00
#define PCI_CLASS_SERIAL_ACCESS         0x0c01
#define PCI_CLASS_SERIAL_SSA            0x0c02
#define PCI_CLASS_SERIAL_USB            0x0c03
#define PCI_CLASS_SERIAL_FIBER          0x0c04
#define PCI_CLASS_SERIAL_SMBUS          0x0c05
#define PCI_CLASS_SERIAL_INFINIBAND     0x0c06

#define PCI_BASE_CLASS_WIRELESS         0x0d
#define PCI_CLASS_WIRELESS_IRDA         0x0d00
#define PCI_CLASS_WIRELESS_CONSUMER_IR  0x0d01
#define PCI_CLASS_WIRELESS_RF           0x0d10
#define PCI_CLASS_WIRELESS_OTHER        0x0d80

#define PCI_BASE_CLASS_INTELLIGENT      0x0e
#define PCI_CLASS_INTELLIGENT_I2O       0x0e00

#define PCI_BASE_CLASS_SATELLITE        0x0f
#define PCI_CLASS_SATELLITE_TV          0x0f00
#define PCI_CLASS_SATELLITE_AUDIO       0x0f01
#define PCI_CLASS_SATELLITE_VOICE       0x0f03
#define PCI_CLASS_SATELLITE_DATA        0x0f04

#define PCI_BASE_CLASS_CRYPT            0x10
#define PCI_CLASS_CRYPT_NETWORK         0x1000
#define PCI_CLASS_CRYPT_ENTERTAINMENT   0x1010
#define PCI_CLASS_CRYPT_OTHER           0x1080

#define PCI_BASE_CLASS_SIGNAL           0x11
#define PCI_CLASS_SIGNAL_DPIO           0x1100
#define PCI_CLASS_SIGNAL_PERF_CTR       0x1101
#define PCI_CLASS_SIGNAL_SYNCHRONIZER   0x1110
#define PCI_CLASS_SIGNAL_OTHER          0x1180

#define PCI_CLASS_OTHERS                0xff

/* Several ID's we need in the library */

#define PCI_VENDOR_ID_INTEL             0x8086
#define PCI_VENDOR_ID_COMPAQ            0x0e11

/* I/O resource flags, compatible with <include/linux/ioport.h> */

#define PCI_IORESOURCE_PCI_EA_BEI       (1<<5)