Date: Mon, 05 Jan 2004 20:41:34 -0800 From: FBSD_AS1200 <mail_list@mindspring.com> To: "S.C. Gehl" <phyx@freeshell.org> Cc: freebsd-alpha@freebsd.org Subject: Re: xfree86supportforAS1200 Message-ID: <3FFA3C7E.1050106@mindspring.com> In-Reply-To: <49449.66.227.165.200.1073357000.squirrel@webmail.freeshell.org> References: <3FF95AE6.30103@mindspring.com> <49449.66.227.165.200.1073357000.squirrel@webmail.freeshell.org>
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This is a multi-part message in MIME format. --------------050908010206090008020205 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit S.C. Gehl wrote: >Cheers... > >sorry for the excessive quote... it's a bitch to >edit/format a ong letter in 'links' > >...I can not find freebsdPci.c nor can I find Pci.h > >I have looked in both fbsd-current and xf-current. > >Have you made any head way on this? I have barely just >begun to learn C, so this is a great way for me to jump in >head first... but honestly I am not sure where to jump. >The letter seems to say where, and it makes sense. I am >glad that they are aware of the source of the problem.. >but where are these files! -Sean. > > > >>Just wanted to get some comments or opinions on the AS1200 >>suggestions received from the XFree86 mailing list as >>quoted below. >> >> >> >>FBSD_AS1200 wrote (in a message from Saturday 3) >> > Thank you for the reference. I have read the note but >>still don't feel >> > any closer to finding support for my system. The >>Domain.note appears to >> > be geared toward sun linux systems. While the note did >>mention >> > multi-domain alpha systems (I assume this is a ref to >>multi pci-host >> > bridges) I am still not clear on how I should implement >>an XFree86 >> > system on an AlphaServer 1200 under FreeBSD. I think I >>MUST be missing a >> > point or two... Would it be possible to find further >>documentation on >> > this issue so I can get up to speed on X development. >>From the post I >> > have been reading on XFree86 and FreeBSD mailing list >>there are several >> > people with multi-pci bus alpha systems that would like >>to assist in >> > getting XFree up and running under a BSD variant. Thank >>you for your >> > assistance! >> >>I'm sorry, I don't know any other written documentation >>that could >>help you. >>What you need is to implement the xf86GetPciDomain(), >>xf86MapDomainMemory(), >>xf86MapDomainIO() and xf86ReadDomainMemory(). functions in >>freebsdPci.c. Once you've done this, you can edit Pci.h >>and remove >>the INCLUDE_XF86_NO_DOMAIN for FreeBSD/alpha. Then the >>XFree86 drivers >>will be able to access the video card(s) independently of >>the bus they >>are attached to. >> >>There can be 2 approaches for that : >> >>- if the FreeBSD kernel already provides an API to >>enumerate the PCI >> host bridges and the configuration space and memory >>mappings for >> each host bridge, use that (this is what freebsdPci.c >>currently does >> for a single host bridge). >> >>- it there's no such interface available, then you need to >>develop a >> driver that will poke directly into the main chipset I/O >>registers >> to probe the various host bridges and handle their >>memory mappings >> from userland. This is for instance what sparcPci.c does >>for SunOS. >> >>Don't hesitate to join the devel@xfree86 mailing list and >>ask more >>questions here if needed. This list is more appropriate >>for >>developpement related questions. >> >>Looking forward for your contributions. >> >> Matthieu >> >> >>_______________________________________________ >>freebsd-alpha@freebsd.org mailing list >>http://lists.freebsd.org/mailman/listinfo/freebsd-alpha >>To unsubscribe, send any mail to >>"freebsd-alpha-unsubscribe@freebsd.org" >> >> >> > >_______________________________________________ >freebsd-alpha@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-alpha >To unsubscribe, send any mail to "freebsd-alpha-unsubscribe@freebsd.org" > > > Here are the most recent versions I could find. Maybe I will get a chance to play with them a bit later. Let us know if you make any headway. --------------050908010206090008020205 Content-Type: text/plain; name="Pci.h" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="Pci.h" /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/Pci.h,v 1.42 2003/08/29 21:08:06 tsi Exp $ */ /* * Copyright 1998 by Concurrent Computer Corporation * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Concurrent Computer * Corporation not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Concurrent Computer Corporation makes no representations * about the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty. * * CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. * * Copyright 1998 by Metro Link Incorporated * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Metro Link * Incorporated not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Metro Link Incorporated makes no representations * about the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty. * * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. * * This file is derived in part from the original xf86_PCI.h that included * following copyright message: * * Copyright 1995 by Robin Cutshaw <robin@XFree86.Org> * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the names of the above listed copyright holder(s) * not be used in advertising or publicity pertaining to distribution of * the software without specific, written prior permission. The above listed * copyright holder(s) make(s) no representations about the suitability of this * software for any purpose. It is provided "as is" without express or * implied warranty. * * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ /* * Copyright (c) 1999-2003 by The XFree86 Project, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of the copyright holder(s) * and author(s) shall not be used in advertising or otherwise to promote * the sale, use or other dealings in this Software without prior written * authorization from the copyright holder(s) and author(s). */ /* * This file has the private Pci definitions. The public ones are imported * from xf86Pci.h. Drivers should not use this file. */ #ifndef _PCI_H #define _PCI_H 1 #include "Xarch.h" #include "Xfuncproto.h" #include "xf86Pci.h" #include "xf86PciInfo.h" /* * Global Definitions */ #define MAX_PCI_DEVICES 64 /* Max number of devices accomodated */ /* by xf86scanpci */ #if defined(sun) && defined(SVR4) && defined(sparc) # define MAX_PCI_BUSES 4096 /* Max number of PCI buses */ #elif defined(__alpha__) && defined (linux) # define MAX_PCI_DOMAINS 512 # define PCI_DOM_MASK 0x01fful # define MAX_PCI_BUSES (MAX_PCI_DOMAINS*256) /* 256 per domain */ #else # define MAX_PCI_BUSES 256 /* Max number of PCI buses */ #endif #define DEVID(vendor, device) \ ((CARD32)((PCI_##device << 16) | PCI_##vendor)) #ifndef PCI_DOM_MASK # define PCI_DOM_MASK 0x0ffu #endif #define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu) /* * "b" contains an optional domain number. */ #define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \ (((d) & 0x00001fu) << 11) | \ (((f) & 0x000007u) << 8)) #define PCI_MAKE_BUS(d,b) ((((d) & (PCI_DOM_MASK)) << 8) | ((b) & 0xffu)) #define PCI_DOM_FROM_TAG(tag) (((tag) >> 24) & (PCI_DOM_MASK)) #define PCI_BUS_FROM_TAG(tag) (((tag) >> 16) & (PCI_DOMBUS_MASK)) #define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800u) >> 11) #define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700u) >> 8) #define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00u) >> 8) #define PCI_BDEV_FROM_TAG(tag) ((tag) & 0x00fff800u) #define PCI_DOM_FROM_BUS(bus) (((bus) >> 8) & (PCI_DOM_MASK)) #define PCI_BUS_NO_DOMAIN(bus) ((bus) & 0xffu) #define PCI_TAG_NO_DOMAIN(tag) ((tag) & 0x00ffff00u) /* * Macros for bus numbers found in P2P headers. */ #define PCI_PRIMARY_BUS_EXTRACT(x, tag) \ ((((x) & PCI_PRIMARY_BUS_MASK ) >> 0) | (PCI_DOM_FROM_TAG(tag) << 8)) #define PCI_SECONDARY_BUS_EXTRACT(x, tag) \ ((((x) & PCI_SECONDARY_BUS_MASK ) >> 8) | (PCI_DOM_FROM_TAG(tag) << 8)) #define PCI_SUBORDINATE_BUS_EXTRACT(x, tag) \ ((((x) & PCI_SUBORDINATE_BUS_MASK) >> 16) | (PCI_DOM_FROM_TAG(tag) << 8)) #define PCI_PRIMARY_BUS_INSERT(x, y) \ (((x) & ~PCI_PRIMARY_BUS_MASK ) | (((y) & 0xffu) << 0)) #define PCI_SECONDARY_BUS_INSERT(x, y) \ (((x) & ~PCI_SECONDARY_BUS_MASK ) | (((y) & 0xffu) << 8)) #define PCI_SUBORDINATE_BUS_INSERT(x, y) \ (((x) & ~PCI_SUBORDINATE_BUS_MASK) | (((y) & 0xffu) << 16)) /* Ditto for CardBus bridges */ #define PCI_CB_PRIMARY_BUS_EXTRACT(x, tag) \ PCI_PRIMARY_BUS_EXTRACT(x, tag) #define PCI_CB_CARDBUS_BUS_EXTRACT(x, tag) \ PCI_SECONDARY_BUS_EXTRACT(x, tag) #define PCI_CB_SUBORDINATE_BUS_EXTRACT(x, tag) \ PCI_SUBORDINATE_BUS_EXTRACT(x, tag) #define PCI_CB_PRIMARY_BUS_INSERT(x, tag) \ PCI_PRIMARY_BUS_INSERT(x, tag) #define PCI_CB_CARDBUS_BUS_INSERT(x, tag) \ PCI_SECONDARY_BUS_INSERT(x, tag) #define PCI_CB_SUBORDINATE_BUS_INSERT(x, tag) \ PCI_SUBORDINATE_BUS_INSERT(x, tag) #if X_BYTE_ORDER == X_BIG_ENDIAN #define PCI_CPU(val) (((val >> 24) & 0x000000ff) | \ ((val >> 8) & 0x0000ff00) | \ ((val << 8) & 0x00ff0000) | \ ((val << 24) & 0xff000000)) #else #define PCI_CPU(val) (val) #endif /* * Debug Macros/Definitions */ /* #define DEBUGPCI 2 */ /* Disable/enable trace in PCI code */ #if defined(DEBUGPCI) # define PCITRACE(lvl,printfargs) \ if (lvl > xf86Verbose) { \ ErrorF printfargs; \ } #else /* !defined(DEBUGPCI) */ # define PCITRACE(lvl,printfargs) #endif /* !defined(DEBUGPCI) */ /* * PCI Config mechanism definitions */ #define PCI_EN 0x80000000 #define PCI_CFGMECH1_ADDRESS_REG 0xCF8 #define PCI_CFGMECH1_DATA_REG 0xCFC #define PCI_CFGMECH1_MAXDEV 32 /* * Select architecture specific PCI init function */ #if defined(__alpha__) # if defined(linux) # define ARCH_PCI_INIT axpPciInit # define INCLUDE_XF86_MAP_PCI_MEM # elif defined(__FreeBSD__) || defined(__OpenBSD__) # define ARCH_PCI_INIT freebsdPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # elif defined(__NetBSD__) # define ARCH_PCI_INIT netbsdPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__arm__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__hppa__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__ia64__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif # define XF86SCANPCI_WRAPPER ia64ScanPCIWrapper #elif defined(__i386__) # define ARCH_PCI_INIT ix86PciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # if defined(linux) # define ARCH_PCI_OS_INIT linuxPciInit # endif #elif defined(__mc68000__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__mips__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__powerpc__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN /* Needs kernel work to remove */ # elif defined(__OpenBSD__) # define ARCH_PCI_INIT freebsdPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # elif defined(__NetBSD__) # define ARCH_PCI_INIT netbsdPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # elif defined(PowerMAX_OS) /* This port is broken */ # define ARCH_PCI_INIT ppcPciInit # else # define ARCH_PCI_INIT ppcPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__s390__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__sh__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif #elif defined(__sparc__) # if defined(linux) # define ARCH_PCI_INIT linuxPciInit # define INCLUDE_XF86_MAP_PCI_MEM # elif defined(sun) # define ARCH_PCI_INIT sparcPciInit # define INCLUDE_XF86_MAP_PCI_MEM # elif defined(__OpenBSD__) && defined(__sparc64__) # define ARCH_PCI_INIT freebsdPciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # endif # define ARCH_PCI_PCI_BRIDGE sparcPciPciBridge #elif defined(__AMD64__) # define ARCH_PCI_INIT ix86PciInit # define INCLUDE_XF86_MAP_PCI_MEM # define INCLUDE_XF86_NO_DOMAIN # if defined(linux) # define ARCH_PCI_OS_INIT linuxPciInit # endif #endif #ifndef ARCH_PCI_INIT #error No PCI support available for this architecture/OS combination #endif extern void ARCH_PCI_INIT(void); #if defined(ARCH_PCI_OS_INIT) extern void ARCH_PCI_OS_INIT(void); #endif #if defined(ARCH_PCI_PCI_BRIDGE) extern void ARCH_PCI_PCI_BRIDGE(pciConfigPtr pPCI); #endif #if defined(XF86SCANPCI_WRAPPER) typedef enum { SCANPCI_INIT, SCANPCI_TERM } scanpciWrapperOpt; extern void XF86SCANPCI_WRAPPER(scanpciWrapperOpt flags); #endif /* * Table of functions used to access a specific PCI bus domain * (e.g. a primary PCI bus and all of its secondaries) */ typedef struct pci_bus_funcs { CARD32 (*pciReadLong)(PCITAG, int); void (*pciWriteLong)(PCITAG, int, CARD32); void (*pciSetBitsLong)(PCITAG, int, CARD32, CARD32); ADDRESS (*pciAddrHostToBus)(PCITAG, PciAddrType, ADDRESS); ADDRESS (*pciAddrBusToHost)(PCITAG, PciAddrType, ADDRESS); /* * The next three are optional. If NULL, the corresponding function is * to be performed generically. */ CARD16 (*pciControlBridge)(int, CARD16, CARD16); void (*pciGetBridgeBuses)(int, int *, int *, int *); /* Use pointer's to avoid #include recursion */ void (*pciGetBridgeResources)(int, pointer *, pointer *, pointer *); } pciBusFuncs_t, *pciBusFuncs_p; /* * pciBusInfo_t - One structure per defined PCI bus */ typedef struct pci_bus_info { unsigned char configMech; /* PCI config type to use */ unsigned char numDevices; /* Range of valid devnums */ unsigned char secondary; /* Boolean: bus is a secondary */ int primary_bus; /* Parent bus */ #ifdef PowerMAX_OS unsigned long ppc_io_base; /* PowerPC I/O spc membase */ unsigned long ppc_io_size; /* PowerPC I/O spc size */ #endif pciBusFuncs_p funcs; /* PCI access functions */ void *pciBusPriv; /* Implementation private data */ pciConfigPtr bridge; /* bridge that opens this bus */ } pciBusInfo_t; #define HOST_NO_BUS ((pciBusInfo_t *)(-1)) /* configMech values */ #define PCI_CFG_MECH_UNKNOWN 0 /* Not yet known */ #define PCI_CFG_MECH_1 1 /* Most machines */ #define PCI_CFG_MECH_2 2 /* Older PC's */ #define PCI_CFG_MECH_OTHER 3 /* Something else */ /* Generic PCI service functions and helpers */ PCITAG pciGenFindFirst(void); PCITAG pciGenFindNext(void); CARD32 pciCfgMech1Read(PCITAG tag, int offset); void pciCfgMech1Write(PCITAG tag, int offset, CARD32 val); void pciCfgMech1SetBits(PCITAG tag, int offset, CARD32 mask, CARD32 val); CARD32 pciByteSwap(CARD32); Bool pciMfDev(int, int); ADDRESS pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS); extern PCITAG (*pciFindFirstFP)(void); extern PCITAG (*pciFindNextFP)(void); extern CARD32 pciDevid; extern CARD32 pciDevidMask; extern int pciMaxBusNum; extern int pciBusNum; extern int pciDevNum; extern int pciFuncNum; extern PCITAG pciDeviceTag; extern pciBusInfo_t *pciBusInfo[]; #endif /* _PCI_H */ --------------050908010206090008020205 Content-Type: text/plain; name="freebsdPci.c" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="freebsdPci.c" /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/freebsdPci.c,v 1.5 2002/08/27 22:07:07 tsi Exp $ */ /* * Copyright 1998 by Concurrent Computer Corporation * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Concurrent Computer * Corporation not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Concurrent Computer Corporation makes no representations * about the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty. * * CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. * * Copyright 1998 by Metro Link Incorporated * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation, and that the name of Metro Link * Incorporated not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Metro Link Incorporated makes no representations * about the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty. * * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. */ #include <stdio.h> #include "compiler.h" #include "xf86.h" #include "xf86Priv.h" #include "xf86_OSlib.h" #include "Pci.h" #include <sys/pciio.h> /* * freebsd platform specific PCI access functions -- using /dev/pci * needs kernel version 2.2.x */ static CARD32 freebsdPciCfgRead(PCITAG tag, int off); static void freebsdPciCfgWrite(PCITAG, int off, CARD32 val); static void freebsdPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits); static pciBusFuncs_t freebsdFuncs0 = { /* pciReadLong */ freebsdPciCfgRead, /* pciWriteLong */ freebsdPciCfgWrite, /* pciSetBitsLong */ freebsdPciCfgSetBits, /* pciAddrHostToBus */ pciAddrNOOP, /* pciAddrBusToHost */ pciAddrNOOP }; static pciBusInfo_t freebsdPci0 = { /* configMech */ PCI_CFG_MECH_OTHER, /* numDevices */ 32, /* secondary */ FALSE, /* primary_bus */ 0, #ifdef PowerMAX_OS /* ppc_io_base */ 0, /* ppc_io_size */ 0, #endif /* funcs */ &freebsdFuncs0, /* pciBusPriv */ NULL, /* bridge */ NULL }; #if !defined(__OpenBSD__) #if X_BYTE_ORDER == X_BIG_ENDIAN #ifdef __sparc__ #ifndef ASI_PL #define ASI_PL 0x88 #endif #define PCI_CPU(val) ({ \ int __ret; \ __asm__ __volatile__("lduwa [%1] %2, %0" : "=r" (__ret) : "r" (&val), "i" (ASI_PL)); \ __ret; \ }) #else #define PCI_CPU(val) (((val >> 24) & 0x000000ff) | \ ((val >> 8) & 0x0000ff00) | \ ((val << 8) & 0x00ff0000) | \ ((val << 24) & 0xff000000)) #endif #else #define PCI_CPU(val) (val) #endif #else /* ! OpenBSD */ /* OpenBSD has already the bytes in the right order for all architectures */ #define PCI_CPU(val) (val) #endif #define BUS(tag) (((tag)>>16)&0xff) #define DFN(tag) (((tag)>>8)&0xff) static int pciFd = -1; void freebsdPciInit() { pciFd = open("/dev/pci", O_RDWR); if (pciFd < 0) return; pciNumBuses = 1; pciBusInfo[0] = &freebsdPci0; pciFindFirstFP = pciGenFindFirst; pciFindNextFP = pciGenFindNext; } static CARD32 freebsdPciCfgRead(PCITAG tag, int off) { struct pci_io io; int error; io.pi_sel.pc_bus = BUS(tag); io.pi_sel.pc_dev = DFN(tag) >> 3; io.pi_sel.pc_func = DFN(tag) & 7; io.pi_reg = off; io.pi_width = 4; error = ioctl(pciFd, PCIOCREAD, &io); if (error) return ~0; return PCI_CPU(io.pi_data); } static void freebsdPciCfgWrite(PCITAG tag, int off, CARD32 val) { struct pci_io io; io.pi_sel.pc_bus = BUS(tag); io.pi_sel.pc_dev = DFN(tag) >> 3; io.pi_sel.pc_func = DFN(tag) & 7; io.pi_reg = off; io.pi_width = 4; io.pi_data = PCI_CPU(val); ioctl(pciFd, PCIOCWRITE, &io); } static void freebsdPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits) { CARD32 val = freebsdPciCfgRead(tag, off); val = (val & ~mask) | (bits & mask); freebsdPciCfgWrite(tag, off, val); } --------------050908010206090008020205--
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