| 1 | /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/Pci.h,v 1.36 2002/12/23 15:37:26 tsi Exp $ */
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| 2 | /*
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| 3 | * Copyright 1998 by Concurrent Computer Corporation
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| 4 | *
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| 5 | * Permission to use, copy, modify, distribute, and sell this software
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| 6 | * and its documentation for any purpose is hereby granted without fee,
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| 7 | * provided that the above copyright notice appear in all copies and that
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| 8 | * both that copyright notice and this permission notice appear in
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| 9 | * supporting documentation, and that the name of Concurrent Computer
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| 10 | * Corporation not be used in advertising or publicity pertaining to
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| 11 | * distribution of the software without specific, written prior
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| 12 | * permission. Concurrent Computer Corporation makes no representations
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| 13 | * about the suitability of this software for any purpose. It is
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| 14 | * provided "as is" without express or implied warranty.
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| 15 | *
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| 16 | * CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
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| 17 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 18 | * AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
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| 19 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 20 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 21 | * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 22 | * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 23 | * SOFTWARE.
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| 24 | *
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| 25 | * Copyright 1998 by Metro Link Incorporated
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| 26 | *
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| 27 | * Permission to use, copy, modify, distribute, and sell this software
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| 28 | * and its documentation for any purpose is hereby granted without fee,
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| 29 | * provided that the above copyright notice appear in all copies and that
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| 30 | * both that copyright notice and this permission notice appear in
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| 31 | * supporting documentation, and that the name of Metro Link
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| 32 | * Incorporated not be used in advertising or publicity pertaining to
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| 33 | * distribution of the software without specific, written prior
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| 34 | * permission. Metro Link Incorporated makes no representations
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| 35 | * about the suitability of this software for any purpose. It is
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| 36 | * provided "as is" without express or implied warranty.
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| 37 | *
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| 38 | * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
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| 39 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 40 | * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
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| 41 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 42 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 43 | * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 44 | * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 45 | * SOFTWARE.
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| 46 | *
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| 47 | * This file is derived in part from the original xf86_PCI.h that included
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| 48 | * following copyright message:
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| 49 | *
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| 50 | * Copyright 1995 by Robin Cutshaw <[email protected]>
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| 51 | *
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| 52 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 53 | * documentation for any purpose is hereby granted without fee, provided that
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| 54 | * the above copyright notice appear in all copies and that both that
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| 55 | * copyright notice and this permission notice appear in supporting
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| 56 | * documentation, and that the names of the above listed copyright holder(s)
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| 57 | * not be used in advertising or publicity pertaining to distribution of
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| 58 | * the software without specific, written prior permission. The above listed
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| 59 | * copyright holder(s) make(s) no representations about the suitability of this
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| 60 | * software for any purpose. It is provided "as is" without express or
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| 61 | * implied warranty.
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| 62 | *
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| 63 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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| 64 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 65 | * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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| 66 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 67 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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| 68 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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| 69 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 70 | *
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| 71 | */
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| 72 |
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| 73 | /*
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| 74 | * This file has the private Pci definitions. The public ones are imported
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| 75 | * from xf86Pci.h. Drivers should not use this file.
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| 76 | */
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| 77 | #ifndef _PCI_H
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| 78 | #define _PCI_H 1
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| 79 |
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| 80 | #include "Xarch.h"
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| 81 | #include "Xfuncproto.h"
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| 82 | #include "xf86Pci.h"
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| 83 | #include "xf86PciInfo.h"
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| 84 |
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| 85 | /*
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| 86 | * Global Definitions
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| 87 | */
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| 88 | #define MAX_PCI_DEVICES 64 /* Max number of devices accomodated */
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| 89 | /* by xf86scanpci */
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| 90 | #if defined(sun) && defined(SVR4) && defined(sparc)
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| 91 | # define MAX_PCI_BUSES 4096 /* Max number of PCI buses */
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| 92 | #elif defined(__alpha__) && defined (linux)
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| 93 | # define MAX_PCI_DOMAINS 512
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| 94 | # define PCI_DOM_MASK 0x01fful
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| 95 | # define MAX_PCI_BUSES (MAX_PCI_DOMAINS*256) /* 256 per domain */
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| 96 | #else
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| 97 | # define MAX_PCI_BUSES 256 /* Max number of PCI buses */
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| 98 | #endif
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| 99 |
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| 100 | #define PCI_NOT_FOUND 0xffffffff
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| 101 |
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| 102 | #define DEVID(vendor, device) \
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| 103 | ((CARD32)((PCI_CHIP_##device << 16) | PCI_VENDOR_##vendor))
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| 104 |
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| 105 | #ifndef PCI_DOM_MASK
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| 106 | # define PCI_DOM_MASK 0x0ffu
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| 107 | #endif
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| 108 | #define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu)
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| 109 |
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| 110 | /*
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| 111 | * "b" contains an optional domain number.
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| 112 | */
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| 113 | #define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \
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| 114 | (((d) & 0x00001fu) << 11) | \
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| 115 | (((f) & 0x000007u) << 8))
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| 116 |
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| 117 | #define PCI_MAKE_BUS(d,b) ((((d) & (PCI_DOM_MASK)) << 8) | ((b) & 0xffu))
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| 118 |
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| 119 | #define PCI_DOM_FROM_TAG(tag) (((tag) >> 24) & (PCI_DOM_MASK))
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| 120 | #define PCI_BUS_FROM_TAG(tag) (((tag) >> 16) & (PCI_DOMBUS_MASK))
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| 121 | #define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800u) >> 11)
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| 122 | #define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700u) >> 8)
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| 123 |
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| 124 | #define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00u) >> 8)
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| 125 | #define PCI_BDEV_FROM_TAG(tag) ((tag) & 0x00fff800u)
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| 126 |
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| 127 | #define PCI_DOM_FROM_BUS(bus) (((bus) >> 8) & (PCI_DOM_MASK))
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| 128 | #define PCI_BUS_NO_DOMAIN(bus) ((bus) & 0xffu)
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| 129 | #define PCI_TAG_NO_DOMAIN(tag) ((tag) & 0x00ffff00u)
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| 130 |
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| 131 | /*
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| 132 | * Macros for bus numbers found in P2P headers.
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| 133 | */
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| 134 | #define PCI_PRIMARY_BUS_EXTRACT(x, tag) \
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| 135 | ((((x) & PCI_PRIMARY_BUS_MASK ) >> 0) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 136 | #define PCI_SECONDARY_BUS_EXTRACT(x, tag) \
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| 137 | ((((x) & PCI_SECONDARY_BUS_MASK ) >> 8) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 138 | #define PCI_SUBORDINATE_BUS_EXTRACT(x, tag) \
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| 139 | ((((x) & PCI_SUBORDINATE_BUS_MASK) >> 16) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 140 |
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| 141 | #define PCI_PRIMARY_BUS_INSERT(x, y) \
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| 142 | (((x) & ~PCI_PRIMARY_BUS_MASK ) | (((y) & 0xffu) << 0))
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| 143 | #define PCI_SECONDARY_BUS_INSERT(x, y) \
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| 144 | (((x) & ~PCI_SECONDARY_BUS_MASK ) | (((y) & 0xffu) << 8))
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| 145 | #define PCI_SUBORDINATE_BUS_INSERT(x, y) \
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| 146 | (((x) & ~PCI_SUBORDINATE_BUS_MASK) | (((y) & 0xffu) << 16))
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| 147 |
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| 148 | /* Ditto for CardBus bridges */
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| 149 | #define PCI_CB_PRIMARY_BUS_EXTRACT(x, tag) \
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| 150 | PCI_PRIMARY_BUS_EXTRACT(x, tag)
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| 151 | #define PCI_CB_CARDBUS_BUS_EXTRACT(x, tag) \
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| 152 | PCI_SECONDARY_BUS_EXTRACT(x, tag)
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| 153 | #define PCI_CB_SUBORDINATE_BUS_EXTRACT(x, tag) \
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| 154 | PCI_SUBORDINATE_BUS_EXTRACT(x, tag)
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| 155 |
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| 156 | #define PCI_CB_PRIMARY_BUS_INSERT(x, tag) \
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| 157 | PCI_PRIMARY_BUS_INSERT(x, tag)
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| 158 | #define PCI_CB_CARDBUS_BUS_INSERT(x, tag) \
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| 159 | PCI_SECONDARY_BUS_INSERT(x, tag)
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| 160 | #define PCI_CB_SUBORDINATE_BUS_INSERT(x, tag) \
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| 161 | PCI_SUBORDINATE_BUS_INSERT(x, tag)
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| 162 |
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| 163 | #if X_BYTE_ORDER == X_BIG_ENDIAN
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| 164 | #define PCI_CPU(val) (((val >> 24) & 0x000000ff) | \
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| 165 | ((val >> 8) & 0x0000ff00) | \
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| 166 | ((val << 8) & 0x00ff0000) | \
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| 167 | ((val << 24) & 0xff000000))
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| 168 | #else
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| 169 | #define PCI_CPU(val) (val)
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| 170 | #endif
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| 171 |
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| 172 | /*
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| 173 | * Debug Macros/Definitions
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| 174 | */
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| 175 | /* #define DEBUGPCI 2 */ /* Disable/enable trace in PCI code */
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| 176 |
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| 177 | #if defined(DEBUGPCI)
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| 178 |
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| 179 | # define PCITRACE(lvl,printfargs) \
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| 180 | if (lvl > xf86Verbose) { \
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| 181 | ErrorF printfargs; \
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| 182 | }
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| 183 |
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| 184 | #else /* !defined(DEBUGPCI) */
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| 185 |
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| 186 | # define PCITRACE(lvl,printfargs)
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| 187 |
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| 188 | #endif /* !defined(DEBUGPCI) */
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| 189 |
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| 190 | /*
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| 191 | * PCI Config mechanism definitions
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| 192 | */
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| 193 | #define PCI_EN 0x80000000
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| 194 |
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| 195 | #define PCI_CFGMECH1_ADDRESS_REG 0xCF8
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| 196 | #define PCI_CFGMECH1_DATA_REG 0xCFC
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| 197 |
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| 198 | #define PCI_CFGMECH1_MAXDEV 32
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| 199 |
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| 200 | /*
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| 201 | * Select architecture specific PCI init function
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| 202 | */
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| 203 | #if defined(__alpha__)
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| 204 | # if defined(linux)
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| 205 | # define ARCH_PCI_INIT axpPciInit
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| 206 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 207 | # elif defined(__FreeBSD__) || defined(__OpenBSD__)
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| 208 | # define ARCH_PCI_INIT freebsdPciInit
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| 209 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 210 | # define INCLUDE_XF86_NO_DOMAIN
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| 211 | # elif defined(__NetBSD__)
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| 212 | # define ARCH_PCI_INIT netbsdPciInit
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| 213 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 214 | # define INCLUDE_XF86_NO_DOMAIN
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| 215 | # endif
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| 216 | #elif defined(__arm__)
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| 217 | # if defined(linux)
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| 218 | # define ARCH_PCI_INIT linuxPciInit
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| 219 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 220 | # define INCLUDE_XF86_NO_DOMAIN
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| 221 | # endif
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| 222 | #elif defined(__hppa__)
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| 223 | # if defined(linux)
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| 224 | # define ARCH_PCI_INIT linuxPciInit
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| 225 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 226 | # define INCLUDE_XF86_NO_DOMAIN
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| 227 | # endif
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| 228 | #elif defined(__ia64__)
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| 229 | # if defined(linux)
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| 230 | # define ARCH_PCI_INIT linuxPciInit
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| 231 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 232 | # define INCLUDE_XF86_NO_DOMAIN
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| 233 | # endif
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| 234 | # define XF86SCANPCI_WRAPPER ia64ScanPCIWrapper
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| 235 | #elif defined(__i386__)
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| 236 | # define ARCH_PCI_INIT ix86PciInit
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| 237 | # define ARCH_PCI_HOST_BRIDGE ix86PciHostBridge
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| 238 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 239 | # define INCLUDE_XF86_NO_DOMAIN
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| 240 | # if defined(linux)
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| 241 | # define ARCH_PCI_OS_INIT linuxPciInit
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| 242 | # endif
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| 243 | #elif defined(__mc68000__)
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| 244 | # if defined(linux)
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| 245 | # define ARCH_PCI_INIT linuxPciInit
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| 246 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 247 | # define INCLUDE_XF86_NO_DOMAIN
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| 248 | # endif
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| 249 | #elif defined(__mips__)
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| 250 | # if defined(linux)
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| 251 | # define ARCH_PCI_INIT linuxPciInit
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| 252 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 253 | # define INCLUDE_XF86_NO_DOMAIN
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| 254 | # endif
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| 255 | #elif defined(__powerpc__)
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| 256 | # if defined(linux)
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| 257 | # define ARCH_PCI_INIT linuxPciInit
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| 258 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 259 | # define INCLUDE_XF86_NO_DOMAIN /* Needs kernel work to remove */
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| 260 | # elif defined(__OpenBSD__)
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| 261 | # define ARCH_PCI_INIT freebsdPciInit
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| 262 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 263 | # define INCLUDE_XF86_NO_DOMAIN
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| 264 | # elif defined(__NetBSD__)
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| 265 | # define ARCH_PCI_INIT netbsdPciInit
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| 266 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 267 | # define INCLUDE_XF86_NO_DOMAIN
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| 268 | # elif defined(PowerMAX_OS) /* This port is broken */
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| 269 | # define ARCH_PCI_INIT ppcPciInit
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| 270 | # else
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| 271 | # define ARCH_PCI_INIT ppcPciInit
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| 272 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 273 | # define INCLUDE_XF86_NO_DOMAIN
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| 274 | # endif
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| 275 | #elif defined(__s390__)
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| 276 | # if defined(linux)
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| 277 | # define ARCH_PCI_INIT linuxPciInit
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| 278 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 279 | # define INCLUDE_XF86_NO_DOMAIN
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| 280 | # endif
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| 281 | #elif defined(__sh__)
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| 282 | # if defined(linux)
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| 283 | # define ARCH_PCI_INIT linuxPciInit
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| 284 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 285 | # define INCLUDE_XF86_NO_DOMAIN
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| 286 | # endif
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| 287 | #elif defined(__sparc__)
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| 288 | # if defined(linux)
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| 289 | # define ARCH_PCI_INIT linuxPciInit
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| 290 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 291 | # elif defined(sun)
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| 292 | # define ARCH_PCI_INIT sparcPciInit
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| 293 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 294 | # elif defined(__OpenBSD__) && defined(__sparc64__)
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| 295 | # define ARCH_PCI_INIT freebsdPciInit
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| 296 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 297 | # define INCLUDE_XF86_NO_DOMAIN
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| 298 | # endif
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| 299 | # define ARCH_PCI_PCI_BRIDGE sparcPciPciBridge
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| 300 | #elif defined(__x86_64__)
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| 301 | # define ARCH_PCI_INIT ix86PciInit
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| 302 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 303 | # define INCLUDE_XF86_NO_DOMAIN
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| 304 | # if defined(linux)
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| 305 | # define ARCH_PCI_OS_INIT linuxPciInit
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| 306 | # endif
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| 307 | #endif
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| 308 |
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| 309 | #ifndef ARCH_PCI_INIT
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| 310 | #error No PCI support available for this architecture/OS combination
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| 311 | #endif
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| 312 |
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| 313 | extern void ARCH_PCI_INIT(void);
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| 314 | #if defined(ARCH_PCI_OS_INIT)
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| 315 | extern void ARCH_PCI_OS_INIT(void);
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| 316 | #endif
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| 317 |
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| 318 | #if defined(ARCH_PCI_HOST_BRIDGE)
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| 319 | extern void ARCH_PCI_HOST_BRIDGE(pciConfigPtr pPCI);
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| 320 | #endif
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| 321 |
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| 322 | #if defined(ARCH_PCI_PCI_BRIDGE)
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| 323 | extern void ARCH_PCI_PCI_BRIDGE(pciConfigPtr pPCI);
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| 324 | #endif
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| 325 |
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| 326 | #if defined(XF86SCANPCI_WRAPPER)
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| 327 | typedef enum {
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| 328 | SCANPCI_INIT,
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| 329 | SCANPCI_TERM
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| 330 | } scanpciWrapperOpt;
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| 331 | extern void XF86SCANPCI_WRAPPER(scanpciWrapperOpt flags);
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| 332 | #endif
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| 333 |
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| 334 | /*
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| 335 | * Table of functions used to access a specific PCI bus domain
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| 336 | * (e.g. a primary PCI bus and all of its secondaries)
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| 337 | */
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| 338 | typedef struct pci_bus_funcs {
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| 339 | CARD32 (*pciReadLong)(PCITAG, int);
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| 340 | void (*pciWriteLong)(PCITAG, int, CARD32);
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| 341 | void (*pciSetBitsLong)(PCITAG, int, CARD32, CARD32);
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| 342 | ADDRESS (*pciAddrHostToBus)(PCITAG, PciAddrType, ADDRESS);
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| 343 | ADDRESS (*pciAddrBusToHost)(PCITAG, PciAddrType, ADDRESS);
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| 344 | /*
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| 345 | * The next three are optional. If NULL, the corresponding function is
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| 346 | * to be performed generically.
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| 347 | */
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| 348 | CARD16 (*pciControlBridge)(int, CARD16, CARD16);
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| 349 | void (*pciGetBridgeBusses)(int, int *, int *, int *);
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| 350 | /* Use pointer's to avoid #include recursion */
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| 351 | void (*pciGetBridgeResources)(int, pointer *, pointer *, pointer *);
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| 352 | } pciBusFuncs_t, *pciBusFuncs_p;
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| 353 |
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| 354 | /*
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| 355 | * pciBusInfo_t - One structure per defined PCI bus
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| 356 | */
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| 357 | typedef struct pci_bus_info {
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| 358 | unsigned char configMech; /* PCI config type to use */
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| 359 | unsigned char numDevices; /* Range of valid devnums */
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| 360 | unsigned char secondary; /* Boolean: bus is a secondary */
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| 361 | int primary_bus; /* Parent bus */
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| 362 | #ifdef PowerMAX_OS
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| 363 | unsigned long ppc_io_base; /* PowerPC I/O spc membase */
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| 364 | unsigned long ppc_io_size; /* PowerPC I/O spc size */
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| 365 | #endif
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| 366 | pciBusFuncs_p funcs; /* PCI access functions */
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| 367 | void *pciBusPriv; /* Implementation private data */
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| 368 | pciConfigPtr bridge; /* bridge that opens this bus */
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| 369 | } pciBusInfo_t;
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| 370 |
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| 371 | #define HOST_NO_BUS ((pciBusInfo_t *)(-1))
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| 372 |
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| 373 | /* configMech values */
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| 374 | #define PCI_CFG_MECH_UNKNOWN 0 /* Not yet known */
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| 375 | #define PCI_CFG_MECH_1 1 /* Most machines */
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| 376 | #define PCI_CFG_MECH_2 2 /* Older PC's */
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| 377 | #define PCI_CFG_MECH_OTHER 3 /* Something else */
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| 378 |
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| 379 | /* Generic PCI service functions and helpers */
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| 380 | PCITAG pciGenFindFirst(void);
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| 381 | PCITAG pciGenFindNext(void);
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| 382 | CARD32 pciCfgMech1Read(PCITAG tag, int offset);
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| 383 | void pciCfgMech1Write(PCITAG tag, int offset, CARD32 val);
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| 384 | void pciCfgMech1SetBits(PCITAG tag, int offset, CARD32 mask,
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| 385 | CARD32 val);
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| 386 | CARD32 pciByteSwap(CARD32);
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| 387 | Bool pciMfDev(int, int);
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| 388 | ADDRESS pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS);
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| 389 |
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| 390 | extern PCITAG (*pciFindFirstFP)(void);
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| 391 | extern PCITAG (*pciFindNextFP)(void);
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| 392 |
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| 393 | extern CARD32 pciDevid;
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| 394 | extern CARD32 pciDevidMask;
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| 395 |
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| 396 | extern int pciMaxBusNum;
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| 397 |
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| 398 | extern int pciBusNum;
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| 399 | extern int pciDevNum;
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| 400 | extern int pciFuncNum;
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| 401 | extern PCITAG pciDeviceTag;
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| 402 |
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| 403 | extern pciBusInfo_t *pciBusInfo[];
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| 404 |
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| 405 | #endif /* _PCI_H */
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