380b51d605
Conflicts: hw/xfree86/common/xf86Init.c hw/xfree86/int10/pci.c hw/xfree86/scanpci/xf86PciData.h hw/xfree86/scanpci/xf86PciStdIds.h hw/xfree86/scanpci/xf86PciStr.h hw/xfree86/scanpci/xf86ScanPci.h hw/xfree86/utils/pcitweak/pcitweak.c hw/xfree86/utils/scanpci/scanpci.c Re-removed most of the conflicting files.
531 lines
17 KiB
C
531 lines
17 KiB
C
/*
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* Pci.c - New server PCI access functions
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*
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* The XFree86 server PCI access functions have been reimplemented as a
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* framework that allows each supported platform/OS to have their own
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* platform/OS specific pci driver.
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*
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* All of the public PCI access functions exported to the other parts of
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* the server are declared in Pci.h and defined herein. These include:
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* pciInit() - Initialize PCI access functions
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* pciReadLong() - Read a 32 bit value from a device's cfg space
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* pciReadWord() - Read a 16 bit value from a device's cfg space
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* pciReadByte() - Read an 8 bit value from a device's cfg space
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* pciWriteLong() - Write a 32 bit value to a device's cfg space
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* pciWriteWord() - Write a 16 bit value to a device's cfg space
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* pciWriteByte() - Write an 8 bit value to a device's cfg space
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* pciSetBitsLong() - Write a 32 bit value against a mask
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* pciSetBitsByte() - Write an 8 bit value against a mask
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* pciTag() - Return tag for a given PCI bus, device, &
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* function
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* pciBusAddrToHostAddr() - Convert a PCI address to a host address
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* pciHostAddrToBusAddr() - Convert a host address to a PCI address
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* xf86scanpci() - Return info about all PCI devices
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* xf86GetPciDomain() - Return domain number from a PCITAG
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* xf86MapDomainMemory() - Like xf86MapPciMem() but can handle
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* domain/host address translation
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* xf86MapLegacyIO() - Maps PCI I/O spaces
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* xf86ReadDomainMemory() - Like xf86ReadPciBIOS() but can handle
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* domain/host address translation
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*
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* The actual PCI backend driver is selected by the pciInit() function
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* (see below) using either compile time definitions, run-time checks,
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* or both.
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*
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* Certain generic functions are provided that make the implementation
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* of certain well behaved platforms (e.g. those supporting PCI config
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* mechanism 1 or some thing close to it) very easy.
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*
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* Less well behaved platforms/OS's can roll their own functions.
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*
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* To add support for another platform/OS, add a call to fooPciInit() within
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* pciInit() below under the correct compile time definition or run-time
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* conditional.
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*
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* The fooPciInit() procedure must do three things:
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* 1) Initialize the pciBusTable[] for all primary PCI buses including
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* the per domain PCI access functions (readLong, writeLong,
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* addrBusToHost, and addrHostToBus).
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*
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* 2) Add entries to pciBusTable[] for configured secondary buses. This
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* step may be skipped if a platform is using the generic findFirst/
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* findNext functions because these procedures will automatically
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* discover and add secondary buses dynamically.
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*
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* 3) Overide default settings for global PCI access functions if
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* required. These include pciFindFirstFP, pciFindNextFP,
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* Of course, if you choose not to use one of the generic
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* functions, you will need to provide a platform specifc replacement.
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*
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* Gary Barton
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* Concurrent Computer Corporation
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* garyb@gate.net
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*
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*/
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/*
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* Copyright 1998 by Concurrent Computer Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of Concurrent Computer
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* Corporation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Concurrent Computer Corporation makes no representations
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* about the suitability of this software for any purpose. It is
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* provided "as is" without express or implied warranty.
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*
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* CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* Copyright 1998 by Metro Link Incorporated
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of Metro Link
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* Incorporated not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Metro Link Incorporated makes no representations
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* about the suitability of this software for any purpose. It is
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* provided "as is" without express or implied warranty.
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*
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* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* This software is derived from the original XFree86 PCI code
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* which includes the following copyright notices as well:
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*
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* Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of the above listed copyright holder(s)
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* not be used in advertising or publicity pertaining to distribution of
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* the software without specific, written prior permission. The above listed
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* copyright holder(s) make(s) no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* This code is also based heavily on the code in FreeBSD-current, which was
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* written by Wolfgang Stanglmeier, and contains the following copyright:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* Copyright (c) 1999-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <errno.h>
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#include <signal.h>
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#include <X11/Xarch.h>
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#include "compiler.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#define XF86_OS_PRIVS
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#include "xf86_OSproc.h"
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#include "Pci.h"
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#include <pciaccess.h>
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#if 0
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#define PCI_MFDEV_SUPPORT 1 /* Include PCI multifunction device support */
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#define PCI_BRIDGE_SUPPORT 1 /* Include support for PCI-to-PCI bridges */
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/*
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* Global data
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*/
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pciBusInfo_t *pciBusInfo[MAX_PCI_BUSES] = { NULL, };
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_X_EXPORT int pciNumBuses = 0; /* Actual number of PCI buses */
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int pciMaxBusNum = MAX_PCI_BUSES;
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static pciConfigPtr pci_devp[MAX_PCI_DEVICES + 1] = {NULL, };
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/*
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* pciInit - choose correct platform/OS specific PCI init routine
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*/
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static void
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pciInit(void)
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{
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static int pciInitialized = 0;
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if (!pciInitialized) {
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pciInitialized = 1;
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/* XXX */
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#if defined(DEBUGPCI)
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if (DEBUGPCI >= xf86Verbose) {
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xf86Verbose = DEBUGPCI;
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}
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#endif
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ARCH_PCI_INIT();
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#if defined(ARCH_PCI_OS_INIT)
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if (pciNumBuses <= 0) {
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ARCH_PCI_OS_INIT();
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}
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#endif
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}
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}
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_X_EXPORT ADDRESS
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pciBusAddrToHostAddr(PCITAG tag, PciAddrType type, ADDRESS addr)
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{
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int bus = PCI_BUS_FROM_TAG(tag);
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pciInit();
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if ((bus >= 0) && (bus < pciNumBuses) && pciBusInfo[bus] &&
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pciBusInfo[bus]->funcs->pciAddrBusToHost)
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return (*pciBusInfo[bus]->funcs->pciAddrBusToHost)(tag, type, addr);
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else
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return(addr);
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}
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_X_EXPORT ADDRESS
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pciHostAddrToBusAddr(PCITAG tag, PciAddrType type, ADDRESS addr)
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{
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int bus = PCI_BUS_FROM_TAG(tag);
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pciInit();
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if ((bus >= 0) && (bus < pciNumBuses) && pciBusInfo[bus] &&
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pciBusInfo[bus]->funcs->pciAddrHostToBus)
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return (*pciBusInfo[bus]->funcs->pciAddrHostToBus)(tag, type, addr);
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else
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return(addr);
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}
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_X_EXPORT PCITAG
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pciTag(int busnum, int devnum, int funcnum)
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{
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return(PCI_MAKE_TAG(busnum,devnum,funcnum));
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}
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CARD32
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pciByteSwap(CARD32 u)
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{
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#if X_BYTE_ORDER == X_BIG_ENDIAN
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return lswapl(u);
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#else /* !BIG_ENDIAN */
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return(u);
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#endif
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}
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ADDRESS
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pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS addr)
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{
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return(addr);
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}
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_X_EXPORT pciConfigPtr *
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xf86scanpci(int flags)
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{
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pciConfigPtr devp;
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pciBusInfo_t *busp;
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int idx = 0, i;
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struct pci_device * dev;
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struct pci_device_iterator * iter;
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static Bool done = FALSE;
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/*
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* if we haven't found PCI devices checking for pci_devp may
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* result in an endless recursion if platform/OS specific PCI
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* bus probing code calls this function from with in it.
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*/
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if (done || pci_devp[0])
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return pci_devp;
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done = TRUE;
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pci_system_init();
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pciInit();
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#ifdef XF86SCANPCI_WRAPPER
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XF86SCANPCI_WRAPPER(SCANPCI_INIT);
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#endif
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iter = pci_slot_match_iterator_create(NULL);
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dev = pci_device_next(iter);
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/* Check if no devices, return now */
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if (dev == NULL) {
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#ifdef XF86SCANPCI_WRAPPER
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XF86SCANPCI_WRAPPER(SCANPCI_TERM);
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#endif
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return NULL;
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}
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while ((idx < MAX_PCI_DEVICES) && (dev != NULL)) {
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pci_device_probe(dev);
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devp = xcalloc(1, sizeof(pciDevice));
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if (!devp) {
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xf86Msg(X_ERROR,
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"xf86scanpci: Out of memory after %d devices!!\n", idx);
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return (pciConfigPtr *)NULL;
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}
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/* Identify pci device by bus, dev, func, and tag */
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devp->dev = dev;
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devp->busnum = PCI_MAKE_BUS(dev->domain, dev->bus);
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devp->devnum = dev->dev;
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devp->funcnum = dev->func;
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devp->tag = PCI_MAKE_TAG(devp->busnum, dev->dev, dev->func);
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/* Read config space for this device */
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for (i = 0; i < 17; i++) { /* PCI hdr plus 1st dev spec dword */
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pci_device_cfg_read_u32(dev, & devp->cfgspc.dwords[i],
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i * sizeof(CARD32));
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}
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/* Some broken devices don't implement this field... */
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if (devp->pci_header_type == 0xff)
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devp->pci_header_type = 0;
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switch (devp->pci_header_type & 0x7f) {
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case 0:
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break;
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case 1:
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case 2: {
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const uint8_t control = devp->pci_bridge_control &
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~(PCI_PCI_BRIDGE_MASTER_ABORT_EN |
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PCI_PCI_BRIDGE_SECONDARY_RESET);
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/* Allow master aborts to complete normally on secondary buses */
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if (!(devp->pci_bridge_control & PCI_PCI_BRIDGE_MASTER_ABORT_EN))
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break;
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pci_device_cfg_write_u8(dev, & control,
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PCI_PCI_BRIDGE_CONTROL_REG);
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break;
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}
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default:
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break;
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}
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xf86MsgVerb(X_INFO, 2, "PCI: %.2x:%02x:%1x: chip %04x,%04x"
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" card %04x,%04x rev %02x class %02x,%02x,%02x hdr %02x\n",
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devp->busnum, devp->devnum, devp->funcnum,
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devp->pci_vendor, devp->_pci_device,
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devp->pci_subsys_vendor, devp->pci_subsys_card,
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devp->pci_rev_id, devp->pci_base_class,
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devp->pci_sub_class, devp->pci_prog_if,
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devp->pci_header_type);
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pci_devp[idx++] = devp;
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dev = pci_device_next(iter);
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}
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/* Restore modified data (in reverse order), and link buses */
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while (--idx >= 0) {
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devp = pci_devp[idx];
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switch (devp->pci_header_type & 0x7f) {
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case 0:
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if ((devp->pci_base_class != PCI_CLASS_BRIDGE) ||
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(devp->pci_sub_class != PCI_SUBCLASS_BRIDGE_HOST))
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break;
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pciBusInfo[devp->busnum]->bridge = devp;
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pciBusInfo[devp->busnum]->primary_bus = devp->busnum;
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break;
|
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|
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case 1:
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case 2: {
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uint8_t control;
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|
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i = PCI_SECONDARY_BUS_EXTRACT(devp->pci_pp_bus_register, devp->tag);
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if (i > devp->busnum) {
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if (pciBusInfo[i]) {
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pciBusInfo[i]->bridge = devp;
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/*
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* The back link needs to be set here, and is unlikely to
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* change.
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*/
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devp->businfo = pciBusInfo[i];
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}
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#ifdef ARCH_PCI_PCI_BRIDGE
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ARCH_PCI_PCI_BRIDGE(devp);
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#endif
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}
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if (!(devp->pci_bridge_control & PCI_PCI_BRIDGE_MASTER_ABORT_EN))
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break;
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control = devp->pci_bridge_control & ~PCI_PCI_BRIDGE_SECONDARY_RESET;
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pci_device_cfg_write_u8(devp->dev, & control,
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PCI_PCI_BRIDGE_CONTROL_REG);
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break;
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}
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default:
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break;
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}
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}
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|
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#ifdef XF86SCANPCI_WRAPPER
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XF86SCANPCI_WRAPPER(SCANPCI_TERM);
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#endif
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|
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/*
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* Lastly, link bridges to their secondary bus, after the architecture has
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* had a chance to modify these assignments.
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*/
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for (idx = 0; idx < pciNumBuses; idx++) {
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if (!(busp = pciBusInfo[idx]) || !(devp = busp->bridge))
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continue;
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devp->businfo = busp;
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}
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xf86MsgVerb(X_INFO, 2, "PCI: End of PCI scan\n");
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return pci_devp;
|
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}
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|
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pciConfigPtr
|
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xf86GetPciConfigFromTag(PCITAG Tag)
|
|
{
|
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pciConfigPtr pDev;
|
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int i = 0;
|
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|
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for (i = 0 ; (pDev = pci_devp[i]) && i <= MAX_PCI_DEVICES; i++) {
|
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if (Tag == pDev->tag)
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return pDev;
|
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}
|
|
|
|
return NULL; /* Bad data */
|
|
}
|
|
|
|
#ifdef INCLUDE_XF86_NO_DOMAIN
|
|
|
|
_X_EXPORT int
|
|
xf86GetPciDomain(PCITAG Tag)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
_X_EXPORT pointer
|
|
xf86MapDomainMemory(int ScreenNum, int Flags, PCITAG Tag,
|
|
ADDRESS Base, unsigned long Size)
|
|
{
|
|
return xf86MapVidMem(ScreenNum, Flags, Base, Size);
|
|
}
|
|
|
|
IOADDRESS
|
|
xf86MapLegacyIO(struct pci_device *dev)
|
|
{
|
|
(void) dev;
|
|
return 0;
|
|
}
|
|
|
|
_X_EXPORT int
|
|
xf86ReadDomainMemory(PCITAG Tag, ADDRESS Base, int Len, unsigned char *Buf)
|
|
{
|
|
int ret, length, rlength;
|
|
|
|
/* Read in 64kB chunks */
|
|
ret = 0;
|
|
while ((length = Len) > 0) {
|
|
if (length > 0x010000) length = 0x010000;
|
|
rlength = xf86ReadBIOS(Base, 0, Buf, length);
|
|
if (rlength < 0) {
|
|
ret = rlength;
|
|
break;
|
|
}
|
|
ret += rlength;
|
|
if (rlength < length) break;
|
|
Base += rlength;
|
|
Buf += rlength;
|
|
Len -= rlength;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* INCLUDE_XF86_NO_DOMAIN */
|