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Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c')
-rw-r--r--nx-X11/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c478
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diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c
deleted file mode 100644
index 08c7fbd39..000000000
--- a/nx-X11/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c
+++ /dev/null
@@ -1,478 +0,0 @@
-/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/axpPci.c,v 1.14 2002/12/11 02:44:28 dawes 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.
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <stdio.h>
-#include "compiler.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "Pci.h"
-
-#include <asm/unistd.h>
-#include "../linux/lnx.h" /* for _iobase */
-
-/*
- * Alpha/Linux platform specific PCI access functions
- */
-static CARD32 axpPciCfgRead(PCITAG tag, int off);
-static void axpPciCfgWrite(PCITAG, int off, CARD32 val);
-static void axpPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits);
-
-static pciBusFuncs_t axpFuncs0 = {
-/* pciReadLong */ axpPciCfgRead,
-/* pciWriteLong */ axpPciCfgWrite,
-/* pciSetBitsLong */ axpPciCfgSetBits,
-/* pciAddrHostToBus */ pciAddrNOOP,
-/* pciAddrBusToHost */ pciAddrNOOP
-};
-
-typedef struct _axpDomainRec {
- int domain, hose;
- int root_bus;
- unsigned long dense_io, sparse_io;
- unsigned long dense_mem, sparse_mem;
- IOADDRESS mapped_io;
-} axpDomainRec, *axpDomainPtr;
-
-#define MAX_DOMAINS (MAX_PCI_BUSES / 256)
-static axpDomainPtr xf86DomainInfo[MAX_DOMAINS] = { NULL, };
-static int pciNumDomains = 0;
-
-/*
- * For debug, domain assignment can start downward from a fixed base
- * (instead of up from 0) by defining FORCE_HIGH_DOMAINS. This allows
- * debug of large domain numbers and sparse domain numbering on systems
- * which don't have as many hoses.
- */
-#if 0
-# define FORCE_HIGH_DOMAINS MAX_DOMAINS /* assign domains downward from here */
-#endif
-
-/*
- * If FORCE_HIGH_DOMAINS is set, make sure it's not larger than the
- * max domain
- */
-#if defined(FORCE_HIGH_DOMAINS) && (FORCE_HIGH_DOMAINS > MAX_DOMAINS)
-# undef FORCE_HIGH_DOMAINS
-# define FORCE_HIGH_DOMAINS MAX_DOMAINS
-#endif
-
-static int
-axpSetupDomains(void)
-{
- axpDomainRec axpDomain;
- int numDomains = 0;
- int hose;
-
-#ifndef INCLUDE_XF86_NO_DOMAIN
-
-#ifdef FORCE_HIGH_DOMAINS
- xf86Msg(X_WARNING,
- "DEBUG OPTION FORCE_HIGH_DOMAINS in use - DRI will *NOT* work\n");
- numDomains = FORCE_HIGH_DOMAINS;
-#endif
-
- /*
- * Since each hose has a different address space, hoses are a perfect
- * overlay for domains, so set up one domain for each hose present
- * in the system. We have to loop through all possible hoses because
- * some systems allow sparse I/O controllers.
- */
- for(hose = 0; hose < MAX_DOMAINS; hose++) {
- axpDomain.root_bus = _iobase(IOBASE_ROOT_BUS, hose, -1, -1);
- if (axpDomain.root_bus < 0) continue;
-
- axpDomain.hose = hose;
-
-#ifndef FORCE_HIGH_DOMAINS
-
- axpDomain.domain = axpDomain.hose = hose;
- numDomains = axpDomain.domain + 1;
-
-#else /* FORCE_HIGH_DOMAINS */
-
- axpDomain.domain = numDomains - hose - 1;
-
- xf86Msg(X_WARNING,
- "FORCE_HIGH_DOMAINS - assigned hose %d to domain %d\n",
- axpDomain.hose, axpDomain.domain);
-
-#endif /* FORCE_HIGH_DOMAINS */
-
- axpDomain.dense_io = _iobase(IOBASE_DENSE_IO, hose, -1, -1);
- axpDomain.sparse_io = _iobase(IOBASE_SPARSE_IO, hose, -1, -1);
- axpDomain.mapped_io = 0;
- axpDomain.dense_mem = _iobase(IOBASE_DENSE_MEM, hose, -1, -1);
- axpDomain.sparse_mem = _iobase(IOBASE_SPARSE_MEM, hose, -1, -1);
-
- xf86DomainInfo[axpDomain.domain] = xnfalloc(sizeof(axpDomainRec));
- *(xf86DomainInfo[axpDomain.domain]) = axpDomain;
-
- /*
- * For now, only allow a single domain (hose) on sparse i/o systems.
- *
- * Allowing multiple domains on sparse systems would require:
- * 1) either
- * a) revamping the sparse video mapping code to allow
- * for multiple unrelated address regions
- * -- OR --
- * b) implementing sparse mapping directly in
- * xf86MapDomainMemory
- * 2) revaming read/write sparse routines to correctly handle
- * the solution to 1)
- * 3) implementing a sparse I/O system (mapping, inX/outX)
- * independent of glibc, since the glibc version only
- * supports hose 0
- */
- if (axpDomain.sparse_io) {
- if (_iobase(IOBASE_ROOT_BUS, hose + 1, -1, -1) >= 0) {
- /*
- * It's a sparse i/o system with (at least) one more hose,
- * show a message indicating that video is constrained to
- * hose 0
- */
- xf86Msg(X_INFO,
- "Sparse I/O system - constraining video to hose 0\n");
- }
- break;
- }
- }
-
-#else /* INCLUDE_XF86_NO_DOMAIN */
-
- /*
- * domain support is not included, so just set up a single domain (0)
- * to represent the first hose so that axpPciInit will still have
- * be able to set up the root bus
- */
- xf86DomainInfo[0] = xnfalloc(sizeof(axpDomainRec));
- *(xf86DomainInfo[0]) = axpDomain;
- numDomains = 1;
-
-#endif /* INCLUDE_XF86_NO_DOMAIN */
-
- return numDomains;
-}
-
-void
-axpPciInit()
-{
- axpDomainPtr pDomain;
- int domain, bus;
-
- pciNumDomains = axpSetupDomains();
-
- for(domain = 0; domain < pciNumDomains; domain++) {
- if (!(pDomain = xf86DomainInfo[domain])) continue;
-
- /*
- * Since any bridged buses will be behind a probed pci-pci bridge,
- * only set up the root bus for each domain (hose) and the bridged
- * buses will be set up as they are found.
- */
- bus = PCI_MAKE_BUS(domain, 0);
- pciBusInfo[bus] = xnfalloc(sizeof(pciBusInfo_t));
- (void)memset(pciBusInfo[bus], 0, sizeof(pciBusInfo_t));
-
- pciBusInfo[bus]->configMech = PCI_CFG_MECH_OTHER;
- pciBusInfo[bus]->numDevices = 32;
- pciBusInfo[bus]->funcs = &axpFuncs0;
- pciBusInfo[bus]->pciBusPriv = pDomain;
-
- pciNumBuses = bus + 1;
- }
-
- pciFindFirstFP = pciGenFindFirst;
- pciFindNextFP = pciGenFindNext;
-}
-
-/*
- * Alpha/Linux PCI configuration space access routines
- */
-static int
-axpPciBusFromTag(PCITAG tag)
-{
- pciBusInfo_t *pBusInfo;
- axpDomainPtr pDomain;
- int bus, dfn;
-
- bus = PCI_BUS_FROM_TAG(tag);
- if ((bus >= pciNumBuses)
- || !(pBusInfo = pciBusInfo[bus])
- || !(pDomain = pBusInfo->pciBusPriv)
- || (pDomain->domain != PCI_DOM_FROM_TAG(tag))) return -1;
-
- bus = PCI_BUS_NO_DOMAIN(bus) + pDomain->root_bus;
- dfn = PCI_DFN_FROM_TAG(tag);
- if (_iobase(IOBASE_HOSE, -1, bus, dfn) != pDomain->hose) return -1;
-
- return bus;
-}
-
-static CARD32
-axpPciCfgRead(PCITAG tag, int off)
-{
- int bus, dfn;
- CARD32 val = 0xffffffff;
-
- if ((bus = axpPciBusFromTag(tag)) >= 0) {
- dfn = PCI_DFN_FROM_TAG(tag);
-
- syscall(__NR_pciconfig_read, bus, dfn, off, 4, &val);
- }
- return(val);
-}
-
-static void
-axpPciCfgWrite(PCITAG tag, int off, CARD32 val)
-{
- int bus, dfn;
-
- if ((bus = axpPciBusFromTag(tag)) >= 0) {
- dfn = PCI_DFN_FROM_TAG(tag);
- syscall(__NR_pciconfig_write, bus, dfn, off, 4, &val);
- }
-}
-
-static void
-axpPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits)
-{
- int bus, dfn;
- CARD32 val = 0xffffffff;
-
- if ((bus = axpPciBusFromTag(tag)) >= 0) {
- dfn = PCI_DFN_FROM_TAG(tag);
-
- syscall(__NR_pciconfig_read, bus, dfn, off, 4, &val);
- val = (val & ~mask) | (bits & mask);
- syscall(__NR_pciconfig_write, bus, dfn, off, 4, &val);
- }
-}
-
-#ifndef INCLUDE_XF86_NO_DOMAIN
-
-/*
- * Alpha/Linux addressing domain support
- */
-
-int
-xf86GetPciDomain(PCITAG Tag)
-{
- return PCI_DOM_FROM_TAG(Tag);
-}
-
-pointer
-xf86MapDomainMemory(int ScreenNum, int Flags, PCITAG Tag,
- ADDRESS Base, unsigned long Size)
-{
- axpDomainPtr pDomain;
- int domain = PCI_DOM_FROM_TAG(Tag);
-
- if ((domain < 0) || (domain >= pciNumDomains) ||
- !(pDomain = xf86DomainInfo[domain]))
- FatalError("%s called with invalid parameters\n", __FUNCTION__);
-
- /*
- * xf86MapVidMem already does what we need, but remember to subtract
- * _bus_base() (the physical dense memory root of hose 0) since
- * xf86MapVidMem is expecting an offset relative to _bus_base() rather
- * than an actual physical address.
- */
- return xf86MapVidMem(ScreenNum, Flags,
- pDomain->dense_mem + Base - _bus_base(), Size);
-}
-
-IOADDRESS
-xf86MapDomainIO(int ScreenNum, int Flags, PCITAG Tag,
- IOADDRESS Base, unsigned long Size)
-{
- axpDomainPtr pDomain;
- int domain = PCI_DOM_FROM_TAG(Tag);
-
- if ((domain < 0) || (domain >= pciNumDomains) ||
- !(pDomain = xf86DomainInfo[domain]))
- FatalError("%s called with invalid parameters\n", __FUNCTION__);
-
- /*
- * Use glibc inx/outx routines for sparse I/O, so just return the
- * base [this is ok since we also constrain sparse I/O systems to
- * a single domain in axpSetupDomains()]
- */
- if (pDomain->sparse_io) return Base;
-
- /*
- * I/O addresses on Alpha are really just different physical memory
- * addresses that the system corelogic turns into I/O commands on the
- * bus, so just use xf86MapVidMem to map I/O as well, but remember
- * to subtract _bus_base() (the physical dense memory root of hose 0)
- * since xf86MapVidMem is expecting an offset relative to _bus_base()
- * rather than an actual physical address.
- *
- * Map the entire I/O space (64kB) at once and only once.
- */
- if (!pDomain->mapped_io)
- pDomain->mapped_io = (IOADDRESS)xf86MapVidMem(ScreenNum, Flags,
- pDomain->dense_io - _bus_base(),
- 0x10000);
-
- return pDomain->mapped_io + Base;
-}
-
-int
-xf86ReadDomainMemory(PCITAG Tag, ADDRESS Base, int Len, unsigned char *Buf)
-{
- static unsigned long pagemask = 0;
- unsigned char *MappedAddr;
- unsigned long MapSize;
- ADDRESS MapBase;
- int i;
-
- if (!pagemask) pagemask = xf86getpagesize() - 1;
-
- /* Ensure page boundaries */
- MapBase = Base & ~pagemask;
- MapSize = ((Base + Len + pagemask) & ~pagemask) - MapBase;
-
- /*
- * VIDMEM_MMIO in order to get sparse mapping on sparse memory systems
- * so we can use mmio functions to read (that way we can really get byte
- * at a time reads on dense memory systems with byte/word instructions.
- */
- MappedAddr = xf86MapDomainMemory(-1, VIDMEM_READONLY | VIDMEM_MMIO,
- Tag, MapBase, MapSize);
-
- for (i = 0; i < Len; i++) {
- *Buf++ = xf86ReadMmio8(MappedAddr, Base - MapBase + i);
- }
-
- xf86UnMapVidMem(-1, MappedAddr, MapSize);
- return Len;
-}
-
-resPtr
-xf86PciBusAccWindowsFromOS(void)
-{
- resPtr pRes = NULL;
- resRange range;
- int domain;
-
- for(domain = 0; domain < pciNumDomains; domain++) {
- if (!xf86DomainInfo[domain]) continue;
-
- RANGE(range, 0, 0xffffffffUL,
- RANGE_TYPE(ResExcMemBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
-
- RANGE(range, 0, 0x0000ffffUL,
- RANGE_TYPE(ResExcIoBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
- }
-
- return pRes;
-}
-
-resPtr
-xf86BusAccWindowsFromOS(void)
-{
- return xf86PciBusAccWindowsFromOS();
-}
-
-resPtr
-xf86AccResFromOS(resPtr pRes)
-{
- resRange range;
- int domain;
-
- for(domain = 0; domain < pciNumDomains; domain++) {
- if (!xf86DomainInfo[domain]) continue;
-
- /*
- * Fallback is to claim the following areas:
- *
- * 0x000c0000 - 0x000effff location of VGA and other extensions ROMS
- */
-
- RANGE(range, 0x000c0000, 0x000effff,
- RANGE_TYPE(ResExcMemBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
-
- /*
- * Fallback would be to claim well known ports in the 0x0 - 0x3ff
- * range along with their sparse I/O aliases, but that's too
- * imprecise. Instead claim a bare minimum here.
- */
- RANGE(range, 0x00000000, 0x000000ff,
- RANGE_TYPE(ResExcIoBlock, domain)); /* For mainboard */
- pRes = xf86AddResToList(pRes, &range, -1);
-
- /*
- * At minimum, the top and bottom resources must be claimed, so that
- * resources that are (or appear to be) unallocated can be relocated.
- */
- RANGE(range, 0x00000000, 0x00000000,
- RANGE_TYPE(ResExcMemBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
- RANGE(range, 0xffffffff, 0xffffffff,
- RANGE_TYPE(ResExcMemBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
-/* RANGE(range, 0x00000000, 0x00000000,
- RANGE_TYPE(ResExcIoBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1); */
- RANGE(range, 0xffffffff, 0xffffffff,
- RANGE_TYPE(ResExcIoBlock, domain));
- pRes = xf86AddResToList(pRes, &range, -1);
- }
-
- return pRes;
-}
-
-#endif /* !INCLUDE_XF86_NO_DOMAIN */
-
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