[PATCH] PCI: clean up pci.h and split pci register info to separate header file.

This cleans up some of the #ifdef CONFIG_PCI stuff up, and moves the pci register
info out to a separate file, where it belongs.  Eventually we can stop including
this file from within pci.h, but lots of code needs to be audited first.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 447 insertions, 0 deletions

diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
new file mode 100644
index 000000000000..7dc391cad10d
--- /dev/null
+++ b/include/linux/pci_regs.h
@@ -0,0 +1,447 @@
+/*
+ *      pci_regs.h
+ *
+ *      PCI standard defines
+ *      Copyright 1994, Drew Eckhardt
+ *      Copyright 1997--1999 Martin Mares <mj@ucw.cz>
+ *
+ *      For more information, please consult the following manuals (look at
+ *      http://www.pcisig.com/ for how to get them):
+ *
+ *      PCI BIOS Specification
+ *      PCI Local Bus Specification
+ *      PCI to PCI Bridge Specification
+ *      PCI System Design Guide
+ */
+
+#ifndef LINUX_PCI_REGS_H
+#define LINUX_PCI_REGS_H
+
+/*
+ * 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_INTX_DISABLE 0x400 /* INTx Emulation Disable */
+
+#define PCI_STATUS              0x06    /* 16 bits */
+#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      (~0x0fUL)
+#define  PCI_BASE_ADDRESS_IO_MASK       (~0x03UL)
+/* 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    (~0x7ffUL)
+
+#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 0x0fUL  /* I/O bridging type */
+#define  PCI_IO_RANGE_TYPE_16   0x00
+#define  PCI_IO_RANGE_TYPE_32   0x01
+#define  PCI_IO_RANGE_MASK      (~0x0fUL)
+#define PCI_SEC_STATUS          0x1e    /* Secondary status register, only bit 14 used */
+#define PCI_MEMORY_BASE         0x20    /* Memory range behind */
+#define PCI_MEMORY_LIMIT        0x22
+#define  PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL
+#define  PCI_MEMORY_RANGE_MASK  (~0x0fUL)
+#define PCI_PREF_MEMORY_BASE    0x24    /* Prefetchable memory range behind */
+#define PCI_PREF_MEMORY_LIMIT   0x26
+#define  PCI_PREF_RANGE_TYPE_MASK 0x0fUL
+#define  PCI_PREF_RANGE_TYPE_32 0x00
+#define  PCI_PREF_RANGE_TYPE_64 0x01
+#define  PCI_PREF_RANGE_MASK    (~0x0fUL)
+#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_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 */
+
+/* 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   (~0x03UL)
+/* 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_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 Signalled Interrupts */
+#define  PCI_CAP_ID_CHSWP       0x06    /* CompactPCI HotSwap */
+#define  PCI_CAP_ID_PCIX        0x07    /* PCI-X */
+#define  PCI_CAP_ID_SHPC        0x0C    /* PCI Standard Hot-Plug Controller */
+#define  PCI_CAP_ID_EXP         0x10    /* PCI Express */
+#define  PCI_CAP_ID_MSIX        0x11    /* MSI-X */
+#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
+
+/* Power Management Registers */
+
+#define PCI_PM_PMC              2       /* PM Capabilities Register */
+#define  PCI_PM_CAP_VER_MASK    0x0007  /* Version */
+#define  PCI_PM_CAP_PME_CLOCK   0x0008  /* PME clock required */
+#define  PCI_PM_CAP_RESERVED    0x0010  /* Reserved field */
+#define  PCI_PM_CAP_DSI         0x0020  /* Device specific initialization */
+#define  PCI_PM_CAP_AUX_POWER   0x01C0  /* Auxilliary power support mask */
+#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         0x0800  /* PME pin supported */
+#define  PCI_PM_CAP_PME_MASK    0xF800  /* PME Mask of all supported states */
+#define  PCI_PM_CAP_PME_D0      0x0800  /* PME# from D0 */
+#define  PCI_PM_CAP_PME_D1      0x1000  /* PME# from D1 */
+#define  PCI_PM_CAP_PME_D2      0x2000  /* PME# from D2 */
+#define  PCI_PM_CAP_PME_D3      0x4000  /* PME# from D3 (hot) */
+#define  PCI_PM_CAP_PME_D3cold  0x8000  /* PME# from D3 (cold) */
+#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_PME_ENABLE 0x0100  /* PME pin enable */
+#define  PCI_PM_CTRL_DATA_SEL_MASK      0x1e00  /* Data select (??) */
+#define  PCI_PM_CTRL_DATA_SCALE_MASK    0x6000  /* Data scale (??) */
+#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    /* Stop clock when in D3hot (??) */
+#define  PCI_PM_BPCC_ENABLE     0x80    /* Bus power/clock control enable (??) */
+#define PCI_PM_DATA_REGISTER    7       /* (??) */
+#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_SBA     0x0200  /* Sideband addressing supported */
+#define  PCI_AGP_STATUS_64BIT   0x0020  /* 64-bit addressing supported */
+#define  PCI_AGP_STATUS_FW      0x0010  /* FW transfers supported */
+#define  PCI_AGP_STATUS_RATE4   0x0004  /* 4x transfer rate supported */
+#define  PCI_AGP_STATUS_RATE2   0x0002  /* 2x transfer rate supported */
+#define  PCI_AGP_STATUS_RATE1   0x0001  /* 1x transfer rate supported */
+#define PCI_AGP_COMMAND         8       /* Control register */
+#define  PCI_AGP_COMMAND_RQ_MASK 0xff000000  /* Master: Maximum number of requests */
+#define  PCI_AGP_COMMAND_SBA    0x0200  /* Sideband addressing enabled */
+#define  PCI_AGP_COMMAND_AGP    0x0100  /* Allow processing of AGP transactions */
+#define  PCI_AGP_COMMAND_64BIT  0x0020  /* Allow processing of 64-bit addresses */
+#define  PCI_AGP_COMMAND_FW     0x0010  /* Force FW transfers */
+#define  PCI_AGP_COMMAND_RATE4  0x0004  /* Use 4x rate */
+#define  PCI_AGP_COMMAND_RATE2  0x0002  /* Use 2x rate */
+#define  PCI_AGP_COMMAND_RATE1  0x0001  /* Use 1x rate */
+#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 Signalled Interrupts registers */
+
+#define PCI_MSI_FLAGS           2       /* Various flags */
+#define  PCI_MSI_FLAGS_64BIT    0x80    /* 64-bit addresses allowed */
+#define  PCI_MSI_FLAGS_QSIZE    0x70    /* Message queue size configured */
+#define  PCI_MSI_FLAGS_QMASK    0x0e    /* Maximum queue size available */
+#define  PCI_MSI_FLAGS_ENABLE   0x01    /* MSI feature enabled */
+#define  PCI_MSI_FLAGS_MASKBIT  0x100   /* 64-bit mask bits allowed */
+#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        16      /* Mask bits register */
+
+/* CompactPCI Hotswap Register */
+
+#define PCI_CHSWP_CSR           2       /* Control and Status Register */
+#define  PCI_CHSWP_DHA          0x01    /* Device Hiding Arm */
+#define  PCI_CHSWP_EIM          0x02    /* ENUM# Signal Mask */
+#define  PCI_CHSWP_PIE          0x04    /* Pending Insert or Extract */
+#define  PCI_CHSWP_LOO          0x08    /* LED On / Off */
+#define  PCI_CHSWP_PI           0x30    /* Programming Interface */
+#define  PCI_CHSWP_EXT          0x40    /* ENUM# status - extraction */
+#define  PCI_CHSWP_INS          0x80    /* ENUM# status - insertion */
+
+/* PCI-X registers */
+
+#define PCI_X_CMD               2       /* Modes & Features */
+#define  PCI_X_CMD_DPERR_E      0x0001  /* Data Parity Error Recovery Enable */
+#define  PCI_X_CMD_ERO          0x0002  /* Enable Relaxed Ordering */
+#define  PCI_X_CMD_MAX_READ     0x000c  /* Max Memory Read Byte Count */
+#define  PCI_X_CMD_MAX_SPLIT    0x0070  /* Max Outstanding Split Transactions */
+#define  PCI_X_CMD_VERSION(x)   (((x) >> 12) & 3) /* Version */
+#define PCI_X_STATUS            4       /* PCI-X capabilities */
+#define  PCI_X_STATUS_DEVFN     0x000000ff      /* A copy of devfn */
+#define  PCI_X_STATUS_BUS       0x0000ff00      /* A copy of bus nr */
+#define  PCI_X_STATUS_64BIT     0x00010000      /* 64-bit device */
+#define  PCI_X_STATUS_133MHZ    0x00020000      /* 133 MHz capable */
+#define  PCI_X_STATUS_SPL_DISC  0x00040000      /* Split Completion Discarded */
+#define  PCI_X_STATUS_UNX_SPL   0x00080000      /* Unexpected Split Completion */
+#define  PCI_X_STATUS_COMPLEX   0x00100000      /* Device Complexity */
+#define  PCI_X_STATUS_MAX_READ  0x00600000      /* Designed Max Memory Read Count */
+#define  PCI_X_STATUS_MAX_SPLIT 0x03800000      /* Designed Max Outstanding Split Transactions */
+#define  PCI_X_STATUS_MAX_CUM   0x1c000000      /* Designed Max Cumulative Read Size */
+#define  PCI_X_STATUS_SPL_ERR   0x20000000      /* Rcvd Split Completion Error Msg */
+#define  PCI_X_STATUS_266MHZ    0x40000000      /* 266 MHz capable */
+#define  PCI_X_STATUS_533MHZ    0x80000000      /* 533 MHz capable */
+
+/* PCI Express capability registers */
+
+#define PCI_EXP_FLAGS           2       /* 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    /* PCI/PCI-X Bridge */
+#define PCI_EXP_FLAGS_SLOT      0x0100  /* Slot implemented */
+#define PCI_EXP_FLAGS_IRQ       0x3e00  /* Interrupt message number */
+#define PCI_EXP_DEVCAP          4       /* 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_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */
+#define  PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */
+#define PCI_EXP_DEVCTL          8       /* 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_RELAX_EN 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_EN 0x0800  /* Enable No Snoop */
+#define  PCI_EXP_DEVCTL_READRQ  0x7000  /* Max_Read_Request_Size */
+#define PCI_EXP_DEVSTA          10      /* 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          12      /* Link Capabilities */
+#define PCI_EXP_LNKCTL          16      /* Link Control */
+#define PCI_EXP_LNKSTA          18      /* Link Status */
+#define PCI_EXP_SLTCAP          20      /* Slot Capabilities */
+#define PCI_EXP_SLTCTL          24      /* Slot Control */
+#define PCI_EXP_SLTSTA          26      /* Slot Status */
+#define PCI_EXP_RTCTL           28      /* Root Control */
+#define  PCI_EXP_RTCTL_SECEE    0x01    /* System Error on Correctable Error */
+#define  PCI_EXP_RTCTL_SENFEE   0x02    /* System Error on Non-Fatal Error */
+#define  PCI_EXP_RTCTL_SEFEE    0x04    /* System Error on Fatal Error */
+#define  PCI_EXP_RTCTL_PMEIE    0x08    /* PME Interrupt Enable */
+#define  PCI_EXP_RTCTL_CRSSVE   0x10    /* CRS Software Visibility Enable */
+#define PCI_EXP_RTCAP           30      /* Root Capabilities */
+#define PCI_EXP_RTSTA           32      /* Root Status */
+
+/* Extended Capabilities (PCI-X 2.0 and Express) */
+#define PCI_EXT_CAP_ID(header)          (header & 0x0000ffff)
+#define PCI_EXT_CAP_VER(header)         ((header >> 16) & 0xf)
+#define PCI_EXT_CAP_NEXT(header)        ((header >> 20) & 0xffc)
+
+#define PCI_EXT_CAP_ID_ERR      1
+#define PCI_EXT_CAP_ID_VC       2
+#define PCI_EXT_CAP_ID_DSN      3
+#define PCI_EXT_CAP_ID_PWR      4
+
+/* Advanced Error Reporting */
+#define PCI_ERR_UNCOR_STATUS    4       /* Uncorrectable Error Status */
+#define  PCI_ERR_UNC_TRAIN      0x00000001      /* Training */
+#define  PCI_ERR_UNC_DLP        0x00000010      /* Data Link Protocol */
+#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_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_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_HEADER_LOG      28      /* Header Log Register (16 bytes) */
+#define PCI_ERR_ROOT_COMMAND    44      /* Root Error Command */
+#define PCI_ERR_ROOT_STATUS     48
+#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 */
+
+#endif /* LINUX_PCI_REGS_H */