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[Xen-changelog] [xen-unstable] MSI 1/6: Move PCI functions and headers to a common location.



# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1209634018 -3600
# Node ID 8bced3d8a90756540df18c356b9f1d66acac2b87
# Parent  5e5bc5b2bb6d4d71c0de97c15448f2f991f4271d
MSI 1/6: Move PCI functions and headers to a common location.

Signed-off-by: Shan Haitao <haitao.shan@xxxxxxxxx>
Signed-off-by: Jiang Yunhong <yunhong.jiang@xxxxxxxxx>
---
 xen/drivers/passthrough/pci_regs.h          |  530 ----------------------------
 xen/arch/x86/domctl.c                       |    1 
 xen/arch/x86/pci.c                          |   58 +++
 xen/drivers/passthrough/amd/iommu_detect.c  |    2 
 xen/drivers/passthrough/amd/iommu_init.c    |    2 
 xen/drivers/passthrough/amd/pci_amd_iommu.c |    2 
 xen/drivers/passthrough/vtd/dmar.c          |    2 
 xen/drivers/passthrough/vtd/intremap.c      |    2 
 xen/drivers/passthrough/vtd/iommu.c         |   29 -
 xen/drivers/passthrough/vtd/qinval.c        |    2 
 xen/drivers/passthrough/vtd/utils.c         |   37 -
 xen/include/xen/iommu.h                     |   21 -
 xen/include/xen/pci.h                       |   22 +
 xen/include/xen/pci_regs.h                  |  530 ++++++++++++++++++++++++++++
 14 files changed, 623 insertions(+), 617 deletions(-)

diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/arch/x86/domctl.c
--- a/xen/arch/x86/domctl.c     Thu May 01 10:00:00 2008 +0100
+++ b/xen/arch/x86/domctl.c     Thu May 01 10:26:58 2008 +0100
@@ -10,6 +10,7 @@
 #include <xen/mm.h>
 #include <xen/guest_access.h>
 #include <xen/compat.h>
+#include <xen/pci.h>
 #include <public/domctl.h>
 #include <xen/sched.h>
 #include <xen/domain.h>
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/arch/x86/pci.c
--- a/xen/arch/x86/pci.c        Thu May 01 10:00:00 2008 +0100
+++ b/xen/arch/x86/pci.c        Thu May 01 10:26:58 2008 +0100
@@ -6,6 +6,7 @@
 
 #include <xen/config.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <xen/spinlock.h>
 #include <asm/io.h>
 
@@ -116,3 +117,60 @@ void pci_conf_write32(
     BUG_ON((bus > 255) || (dev > 31) || (func > 7) || (reg > 255));
     pci_conf_write(PCI_CONF_ADDRESS(bus, dev, func, reg), 0, 4, data);
 }
+
+int pci_find_cap_offset(u8 bus, u8 dev, u8 func, u8 cap)
+{
+    u8 id;
+    int max_cap = 48;
+    u8 pos = PCI_CAPABILITY_LIST;
+    u16 status;
+
+    status = pci_conf_read16(bus, dev, func, PCI_STATUS);
+    if ( (status & PCI_STATUS_CAP_LIST) == 0 )
+        return 0;
+
+    while ( max_cap-- )
+    {
+        pos = pci_conf_read8(bus, dev, func, pos);
+        if ( pos < 0x40 )
+            break;
+
+        pos &= ~3;
+        id = pci_conf_read8(bus, dev, func, pos + PCI_CAP_LIST_ID);
+
+        if ( id == 0xff )
+            break;
+        else if ( id == cap )
+            return pos;
+
+        pos += PCI_CAP_LIST_NEXT;
+    }
+
+    return 0;
+}
+
+int pci_find_next_cap(u8 bus, unsigned int devfn, u8 pos, int cap)
+{
+    u8 id;
+    int ttl = 48;
+
+    while ( ttl-- )
+    {
+        pos = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn), pos);
+        if ( pos < 0x40 )
+            break;
+
+        pos &= ~3;
+        id = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn),
+                            pos + PCI_CAP_LIST_ID);
+
+        if ( id == 0xff )
+            break;
+        if ( id == cap )
+            return pos;
+
+        pos += PCI_CAP_LIST_NEXT;
+    }
+    return 0;
+}
+
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/amd/iommu_detect.c
--- a/xen/drivers/passthrough/amd/iommu_detect.c        Thu May 01 10:00:00 
2008 +0100
+++ b/xen/drivers/passthrough/amd/iommu_detect.c        Thu May 01 10:26:58 
2008 +0100
@@ -22,9 +22,9 @@
 #include <xen/errno.h>
 #include <xen/iommu.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <asm/amd-iommu.h>
 #include <asm/hvm/svm/amd-iommu-proto.h>
-#include "../pci_regs.h"
 
 static int __init valid_bridge_bus_config(
     int bus, int dev, int func, int *sec_bus, int *sub_bus)
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/amd/iommu_init.c
--- a/xen/drivers/passthrough/amd/iommu_init.c  Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/amd/iommu_init.c  Thu May 01 10:26:58 2008 +0100
@@ -21,10 +21,10 @@
 #include <xen/config.h>
 #include <xen/errno.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <asm/amd-iommu.h>
 #include <asm/hvm/svm/amd-iommu-proto.h>
 #include <asm-x86/fixmap.h>
-#include "../pci_regs.h"
 
 extern int nr_amd_iommus;
 static struct amd_iommu *vector_to_iommu[NR_VECTORS];
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/amd/pci_amd_iommu.c
--- a/xen/drivers/passthrough/amd/pci_amd_iommu.c       Thu May 01 10:00:00 
2008 +0100
+++ b/xen/drivers/passthrough/amd/pci_amd_iommu.c       Thu May 01 10:26:58 
2008 +0100
@@ -20,11 +20,11 @@
 
 #include <xen/sched.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <asm/amd-iommu.h>
 #include <asm/hvm/svm/amd-iommu-proto.h>
 #include <asm/hvm/svm/amd-iommu-acpi.h>
 #include <asm/mm.h>
-#include "../pci_regs.h"
 
 struct list_head amd_iommu_head;
 long amd_iommu_poll_comp_wait = COMPLETION_WAIT_DEFAULT_POLLING_COUNT;
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/pci_regs.h
--- a/xen/drivers/passthrough/pci_regs.h        Thu May 01 10:00:00 2008 +0100
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,530 +0,0 @@
-/*
- *     pci_regs.h
- *
- *     PCI standard defines
- *     Copyright 1994, Drew Eckhardt
- *     Copyright 1997--1999 Martin Mares <mj@xxxxxx>
- *
- *     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
- *
- *     For hypertransport information, please consult the following manuals
- *     from http://www.hypertransport.org
- *
- *     The Hypertransport I/O Link Specification
- */
-
-#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_ISA    0x04    /* Enable ISA mode */
-#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_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_SHPC       0x0C    /* PCI Standard Hot-Plug Controller */
-#define  PCI_CAP_ID_SSVID      0x0D    /* Bridge subsystem vendor/device ID */
-#define  PCI_CAP_ID_AGP3       0x0E    /* AGP Target PCI-PCI bridge */
-#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_NO_SOFT_RESET     0x0004  /* No reset for D3hot->D0 */
-#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 */
-
-/* MSI-X registers (these are at offset PCI_MSIX_FLAGS) */
-#define PCI_MSIX_FLAGS         2
-#define  PCI_MSIX_FLAGS_QSIZE  0x7FF
-#define  PCI_MSIX_FLAGS_ENABLE (1 << 15)
-#define  PCI_MSIX_FLAGS_MASKALL        (1 << 14)
-#define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
-#define PCI_MSIX_FLAGS_BITMASK (1 << 0)
-
-/* 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_READ_512    0x0000  /* 512 byte maximum read byte count */
-#define  PCI_X_CMD_READ_1K     0x0004  /* 1Kbyte maximum read byte count */
-#define  PCI_X_CMD_READ_2K     0x0008  /* 2Kbyte maximum read byte count */
-#define  PCI_X_CMD_READ_4K     0x000c  /* 4Kbyte maximum read byte count */
-#define  PCI_X_CMD_MAX_READ    0x000c  /* Max Memory Read Byte Count */
-                               /* Max # of outstanding split transactions */
-#define  PCI_X_CMD_SPLIT_1     0x0000  /* Max 1 */
-#define  PCI_X_CMD_SPLIT_2     0x0010  /* Max 2 */
-#define  PCI_X_CMD_SPLIT_3     0x0020  /* Max 3 */
-#define  PCI_X_CMD_SPLIT_4     0x0030  /* Max 4 */
-#define  PCI_X_CMD_SPLIT_8     0x0040  /* Max 8 */
-#define  PCI_X_CMD_SPLIT_12    0x0050  /* Max 12 */
-#define  PCI_X_CMD_SPLIT_16    0x0060  /* Max 16 */
-#define  PCI_X_CMD_SPLIT_32    0x0070  /* Max 32 */
-#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_LNKCTL_CLKREQ_EN 0x100        /* Enable clkreq */
-#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 */
-/* Correctable Err Reporting Enable */
-#define PCI_ERR_ROOT_CMD_COR_EN                0x00000001
-/* Non-fatal Err Reporting Enable */
-#define PCI_ERR_ROOT_CMD_NONFATAL_EN   0x00000002
-/* Fatal Err Reporting Enable */
-#define PCI_ERR_ROOT_CMD_FATAL_EN      0x00000004
-#define PCI_ERR_ROOT_STATUS    48
-#define PCI_ERR_ROOT_COR_RCV           0x00000001      /* ERR_COR Received */
-/* Multi ERR_COR Received */
-#define PCI_ERR_ROOT_MULTI_COR_RCV     0x00000002
-/* ERR_FATAL/NONFATAL Recevied */
-#define PCI_ERR_ROOT_UNCOR_RCV         0x00000004
-/* Multi ERR_FATAL/NONFATAL Recevied */
-#define PCI_ERR_ROOT_MULTI_UNCOR_RCV   0x00000008
-#define PCI_ERR_ROOT_FIRST_FATAL       0x00000010      /* First Fatal */
-#define PCI_ERR_ROOT_NONFATAL_RCV      0x00000020      /* Non-Fatal Received */
-#define PCI_ERR_ROOT_FATAL_RCV         0x00000040      /* Fatal Received */
-#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 */
-
-/*
- * Hypertransport sub capability types
- *
- * Unfortunately there are both 3 bit and 5 bit capability types defined
- * in the HT spec, catering for that is a little messy. You probably don't
- * want to use these directly, just use pci_find_ht_capability() and it
- * will do the right thing for you.
- */
-#define HT_3BIT_CAP_MASK       0xE0
-#define HT_CAPTYPE_SLAVE       0x00    /* Slave/Primary link configuration */
-#define HT_CAPTYPE_HOST                0x20    /* Host/Secondary link 
configuration */
-
-#define HT_5BIT_CAP_MASK       0xF8
-#define HT_CAPTYPE_IRQ         0x80    /* IRQ Configuration */
-#define HT_CAPTYPE_REMAPPING_40        0xA0    /* 40 bit address remapping */
-#define HT_CAPTYPE_REMAPPING_64 0xA2   /* 64 bit address remapping */
-#define HT_CAPTYPE_UNITID_CLUMP        0x90    /* Unit ID clumping */
-#define HT_CAPTYPE_EXTCONF     0x98    /* Extended Configuration Space Access 
*/
-#define HT_CAPTYPE_MSI_MAPPING 0xA8    /* MSI Mapping Capability */
-#define  HT_MSI_FLAGS          0x02            /* Offset to flags */
-#define  HT_MSI_FLAGS_ENABLE   0x1             /* Mapping enable */
-#define  HT_MSI_FLAGS_FIXED    0x2             /* Fixed mapping only */
-#define  HT_MSI_FIXED_ADDR     0x00000000FEE00000ULL   /* Fixed addr */
-#define  HT_MSI_ADDR_LO                0x04            /* Offset to low addr 
bits */
-#define  HT_MSI_ADDR_LO_MASK   0xFFF00000      /* Low address bit mask */
-#define  HT_MSI_ADDR_HI                0x08            /* Offset to high addr 
bits */
-#define HT_CAPTYPE_DIRECT_ROUTE        0xB0    /* Direct routing configuration 
*/
-#define HT_CAPTYPE_VCSET       0xB8    /* Virtual Channel configuration */
-#define HT_CAPTYPE_ERROR_RETRY 0xC0    /* Retry on error configuration */
-#define HT_CAPTYPE_GEN3                0xD0    /* Generation 3 hypertransport 
configuration */
-#define HT_CAPTYPE_PM          0xE0    /* Hypertransport powermanagement 
configuration */
-
-
-#endif /* LINUX_PCI_REGS_H */
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/vtd/dmar.c
--- a/xen/drivers/passthrough/vtd/dmar.c        Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/vtd/dmar.c        Thu May 01 10:26:58 2008 +0100
@@ -26,9 +26,9 @@
 #include <xen/mm.h>
 #include <xen/xmalloc.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <asm/string.h>
 #include "dmar.h"
-#include "../pci_regs.h"
 
 int vtd_enabled = 1;
 
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/vtd/intremap.c
--- a/xen/drivers/passthrough/vtd/intremap.c    Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/vtd/intremap.c    Thu May 01 10:26:58 2008 +0100
@@ -23,10 +23,10 @@
 #include <xen/iommu.h>
 #include <xen/time.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include "iommu.h"
 #include "dmar.h"
 #include "vtd.h"
-#include "../pci_regs.h"
 #include "msi.h"
 #include "extern.h"
 
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/vtd/iommu.c
--- a/xen/drivers/passthrough/vtd/iommu.c       Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/vtd/iommu.c       Thu May 01 10:26:58 2008 +0100
@@ -27,10 +27,10 @@
 #include <xen/numa.h>
 #include <xen/time.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include <asm/paging.h>
 #include "iommu.h"
 #include "dmar.h"
-#include "../pci_regs.h"
 #include "msi.h"
 #include "extern.h"
 #include "vtd.h"
@@ -1182,31 +1182,6 @@ static int domain_context_mapping_one(
     return 0;
 }
 
-static int __pci_find_next_cap(u8 bus, unsigned int devfn, u8 pos, int cap)
-{
-    u8 id;
-    int ttl = 48;
-
-    while ( ttl-- )
-    {
-        pos = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn), pos);
-        if ( pos < 0x40 )
-            break;
-
-        pos &= ~3;
-        id = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn),
-                            pos + PCI_CAP_LIST_ID);
-
-        if ( id == 0xff )
-            break;
-        if ( id == cap )
-            return pos;
-
-        pos += PCI_CAP_LIST_NEXT;
-    }
-    return 0;
-}
-
 #define PCI_BASE_CLASS_BRIDGE    0x06
 #define PCI_CLASS_BRIDGE_PCI     0x0604
 
@@ -1230,7 +1205,7 @@ int pdev_type(struct pci_dev *dev)
     if ( !(status & PCI_STATUS_CAP_LIST) )
         return DEV_TYPE_PCI;
 
-    if ( __pci_find_next_cap(dev->bus, dev->devfn,
+    if ( pci_find_next_cap(dev->bus, dev->devfn,
                             PCI_CAPABILITY_LIST, PCI_CAP_ID_EXP) )
         return DEV_TYPE_PCIe_ENDPOINT;
 
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/vtd/qinval.c
--- a/xen/drivers/passthrough/vtd/qinval.c      Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/vtd/qinval.c      Thu May 01 10:26:58 2008 +0100
@@ -23,10 +23,10 @@
 #include <xen/iommu.h>
 #include <xen/time.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include "iommu.h"
 #include "dmar.h"
 #include "vtd.h"
-#include "../pci_regs.h"
 #include "msi.h"
 #include "extern.h"
 
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/drivers/passthrough/vtd/utils.c
--- a/xen/drivers/passthrough/vtd/utils.c       Thu May 01 10:00:00 2008 +0100
+++ b/xen/drivers/passthrough/vtd/utils.c       Thu May 01 10:26:58 2008 +0100
@@ -22,9 +22,9 @@
 #include <xen/iommu.h>
 #include <xen/time.h>
 #include <xen/pci.h>
+#include <xen/pci_regs.h>
 #include "iommu.h"
 #include "dmar.h"
-#include "../pci_regs.h"
 #include "msi.h"
 #include "vtd.h"
 
@@ -96,37 +96,6 @@ void disable_pmr(struct iommu *iommu)
             "Disabled protected memory registers\n");
 }
 
-static u8 find_cap_offset(u8 bus, u8 dev, u8 func, u8 cap)
-{
-    u8 id;
-    int max_cap = 48;
-    u8 pos = PCI_CAPABILITY_LIST;
-    u16 status;
-
-    status = pci_conf_read16(bus, dev, func, PCI_STATUS);
-    if ( (status & PCI_STATUS_CAP_LIST) == 0 )
-        return 0;
-
-    while ( max_cap-- )
-    {
-        pos = pci_conf_read8(bus, dev, func, pos);
-        if ( pos < 0x40 )
-            break;
-
-        pos &= ~3;
-        id = pci_conf_read8(bus, dev, func, pos + PCI_CAP_LIST_ID);
-
-        if ( id == 0xff )
-            break;
-        else if ( id == cap )
-            return pos;
-
-        pos += PCI_CAP_LIST_NEXT;
-    }
-
-    return 0;
-}
-
 #define PCI_D3hot   (3)
 #define PCI_CONFIG_DWORD_SIZE   (64)
 #define PCI_EXP_DEVCAP_FLR      (1 << 28)
@@ -140,7 +109,7 @@ void pdev_flr(u8 bus, u8 devfn)
     u8 dev = PCI_SLOT(devfn);
     u8 func = PCI_FUNC(devfn);
 
-    pos = find_cap_offset(bus, dev, func, PCI_CAP_ID_EXP);
+    pos = pci_find_cap_offset(bus, dev, func, PCI_CAP_ID_EXP);
     if ( pos != 0 )
     {
         dev_cap = pci_conf_read32(bus, dev, func, pos + PCI_EXP_DEVCAP);
@@ -163,7 +132,7 @@ void pdev_flr(u8 bus, u8 devfn)
      */
     if ( flr == 0 )
     {
-        pos = find_cap_offset(bus, dev, func, PCI_CAP_ID_PM);
+        pos = pci_find_cap_offset(bus, dev, func, PCI_CAP_ID_PM);
         if ( pos != 0 )
         {
             int i;
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/include/xen/iommu.h
--- a/xen/include/xen/iommu.h   Thu May 01 10:00:00 2008 +0100
+++ b/xen/include/xen/iommu.h   Thu May 01 10:26:58 2008 +0100
@@ -21,7 +21,7 @@
 #define _IOMMU_H_
 
 #include <xen/init.h>
-#include <xen/list.h>
+#include <xen/pci.h>
 #include <xen/spinlock.h>
 #include <public/hvm/ioreq.h>
 #include <public/domctl.h>
@@ -38,25 +38,6 @@ extern int iommu_enabled;
 #define PAGE_SIZE_4K        (1UL << PAGE_SHIFT_4K)
 #define PAGE_MASK_4K        (((u64)-1) << PAGE_SHIFT_4K)
 #define PAGE_ALIGN_4K(addr) (((addr) + PAGE_SIZE_4K - 1) & PAGE_MASK_4K)
-
-/*
- * 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:
- *
- * 15:8 = bus
- *  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)
-
-struct pci_dev {
-    struct list_head list;
-    u8 bus;
-    u8 devfn;
-};
 
 struct iommu {
     struct list_head list;
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/include/xen/pci.h
--- a/xen/include/xen/pci.h     Thu May 01 10:00:00 2008 +0100
+++ b/xen/include/xen/pci.h     Thu May 01 10:26:58 2008 +0100
@@ -9,6 +9,26 @@
 
 #include <xen/config.h>
 #include <xen/types.h>
+#include <xen/list.h>
+
+/*
+ * 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:
+ *
+ * 15:8 = bus
+ *  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)
+
+struct pci_dev {
+    struct list_head list;
+    u8 bus;
+    u8 devfn;
+};
 
 uint8_t pci_conf_read8(
     unsigned int bus, unsigned int dev, unsigned int func, unsigned int reg);
@@ -25,5 +45,7 @@ void pci_conf_write32(
 void pci_conf_write32(
     unsigned int bus, unsigned int dev, unsigned int func, unsigned int reg,
     uint32_t data);
+int pci_find_cap_offset(u8 bus, u8 dev, u8 func, u8 cap);
+int pci_find_next_cap(u8 bus, unsigned int devfn, u8 pos, int cap);
 
 #endif /* __XEN_PCI_H__ */
diff -r 5e5bc5b2bb6d -r 8bced3d8a907 xen/include/xen/pci_regs.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/xen/pci_regs.h        Thu May 01 10:26:58 2008 +0100
@@ -0,0 +1,530 @@
+/*
+ *     pci_regs.h
+ *
+ *     PCI standard defines
+ *     Copyright 1994, Drew Eckhardt
+ *     Copyright 1997--1999 Martin Mares <mj@xxxxxx>
+ *
+ *     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
+ *
+ *     For hypertransport information, please consult the following manuals
+ *     from http://www.hypertransport.org
+ *
+ *     The Hypertransport I/O Link Specification
+ */
+
+#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_ISA    0x04    /* Enable ISA mode */
+#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_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_SHPC       0x0C    /* PCI Standard Hot-Plug Controller */
+#define  PCI_CAP_ID_SSVID      0x0D    /* Bridge subsystem vendor/device ID */
+#define  PCI_CAP_ID_AGP3       0x0E    /* AGP Target PCI-PCI bridge */
+#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_NO_SOFT_RESET     0x0004  /* No reset for D3hot->D0 */
+#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 */
+
+/* MSI-X registers (these are at offset PCI_MSIX_FLAGS) */
+#define PCI_MSIX_FLAGS         2
+#define  PCI_MSIX_FLAGS_QSIZE  0x7FF
+#define  PCI_MSIX_FLAGS_ENABLE (1 << 15)
+#define  PCI_MSIX_FLAGS_MASKALL        (1 << 14)
+#define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
+#define PCI_MSIX_FLAGS_BITMASK (1 << 0)
+
+/* 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_READ_512    0x0000  /* 512 byte maximum read byte count */
+#define  PCI_X_CMD_READ_1K     0x0004  /* 1Kbyte maximum read byte count */
+#define  PCI_X_CMD_READ_2K     0x0008  /* 2Kbyte maximum read byte count */
+#define  PCI_X_CMD_READ_4K     0x000c  /* 4Kbyte maximum read byte count */
+#define  PCI_X_CMD_MAX_READ    0x000c  /* Max Memory Read Byte Count */
+                               /* Max # of outstanding split transactions */
+#define  PCI_X_CMD_SPLIT_1     0x0000  /* Max 1 */
+#define  PCI_X_CMD_SPLIT_2     0x0010  /* Max 2 */
+#define  PCI_X_CMD_SPLIT_3     0x0020  /* Max 3 */
+#define  PCI_X_CMD_SPLIT_4     0x0030  /* Max 4 */
+#define  PCI_X_CMD_SPLIT_8     0x0040  /* Max 8 */
+#define  PCI_X_CMD_SPLIT_12    0x0050  /* Max 12 */
+#define  PCI_X_CMD_SPLIT_16    0x0060  /* Max 16 */
+#define  PCI_X_CMD_SPLIT_32    0x0070  /* Max 32 */
+#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_LNKCTL_CLKREQ_EN 0x100        /* Enable clkreq */
+#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 */
+/* Correctable Err Reporting Enable */
+#define PCI_ERR_ROOT_CMD_COR_EN                0x00000001
+/* Non-fatal Err Reporting Enable */
+#define PCI_ERR_ROOT_CMD_NONFATAL_EN   0x00000002
+/* Fatal Err Reporting Enable */
+#define PCI_ERR_ROOT_CMD_FATAL_EN      0x00000004
+#define PCI_ERR_ROOT_STATUS    48
+#define PCI_ERR_ROOT_COR_RCV           0x00000001      /* ERR_COR Received */
+/* Multi ERR_COR Received */
+#define PCI_ERR_ROOT_MULTI_COR_RCV     0x00000002
+/* ERR_FATAL/NONFATAL Recevied */
+#define PCI_ERR_ROOT_UNCOR_RCV         0x00000004
+/* Multi ERR_FATAL/NONFATAL Recevied */
+#define PCI_ERR_ROOT_MULTI_UNCOR_RCV   0x00000008
+#define PCI_ERR_ROOT_FIRST_FATAL       0x00000010      /* First Fatal */
+#define PCI_ERR_ROOT_NONFATAL_RCV      0x00000020      /* Non-Fatal Received */
+#define PCI_ERR_ROOT_FATAL_RCV         0x00000040      /* Fatal Received */
+#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 */
+
+/*
+ * Hypertransport sub capability types
+ *
+ * Unfortunately there are both 3 bit and 5 bit capability types defined
+ * in the HT spec, catering for that is a little messy. You probably don't
+ * want to use these directly, just use pci_find_ht_capability() and it
+ * will do the right thing for you.
+ */
+#define HT_3BIT_CAP_MASK       0xE0
+#define HT_CAPTYPE_SLAVE       0x00    /* Slave/Primary link configuration */
+#define HT_CAPTYPE_HOST                0x20    /* Host/Secondary link 
configuration */
+
+#define HT_5BIT_CAP_MASK       0xF8
+#define HT_CAPTYPE_IRQ         0x80    /* IRQ Configuration */
+#define HT_CAPTYPE_REMAPPING_40        0xA0    /* 40 bit address remapping */
+#define HT_CAPTYPE_REMAPPING_64 0xA2   /* 64 bit address remapping */
+#define HT_CAPTYPE_UNITID_CLUMP        0x90    /* Unit ID clumping */
+#define HT_CAPTYPE_EXTCONF     0x98    /* Extended Configuration Space Access 
*/
+#define HT_CAPTYPE_MSI_MAPPING 0xA8    /* MSI Mapping Capability */
+#define  HT_MSI_FLAGS          0x02            /* Offset to flags */
+#define  HT_MSI_FLAGS_ENABLE   0x1             /* Mapping enable */
+#define  HT_MSI_FLAGS_FIXED    0x2             /* Fixed mapping only */
+#define  HT_MSI_FIXED_ADDR     0x00000000FEE00000ULL   /* Fixed addr */
+#define  HT_MSI_ADDR_LO                0x04            /* Offset to low addr 
bits */
+#define  HT_MSI_ADDR_LO_MASK   0xFFF00000      /* Low address bit mask */
+#define  HT_MSI_ADDR_HI                0x08            /* Offset to high addr 
bits */
+#define HT_CAPTYPE_DIRECT_ROUTE        0xB0    /* Direct routing configuration 
*/
+#define HT_CAPTYPE_VCSET       0xB8    /* Virtual Channel configuration */
+#define HT_CAPTYPE_ERROR_RETRY 0xC0    /* Retry on error configuration */
+#define HT_CAPTYPE_GEN3                0xD0    /* Generation 3 hypertransport 
configuration */
+#define HT_CAPTYPE_PM          0xE0    /* Hypertransport powermanagement 
configuration */
+
+
+#endif /* LINUX_PCI_REGS_H */

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