Bug #2373: SGI Altix platform support. (Shrijeet Mukherjee, Jesse Barnes,

Bjorn Helgaas, Egbert Eich.)
This commit is contained in:
Adam Jackson 2005-04-22 16:49:22 +00:00
parent 8565b6c0e2
commit 16c2499b8f
11 changed files with 513 additions and 30 deletions

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@ -124,7 +124,8 @@ extern int ffs(unsigned long);
# if !defined(__arm__)
# if !defined(__sparc__) && !defined(__arm32__) \
&& !(defined(__alpha__) && defined(linux))
&& !(defined(__alpha__) && defined(linux)) \
&& !(defined(__ia64__) && defined(linux)) \
extern void outb(unsigned short, unsigned char);
extern void outw(unsigned short, unsigned short);
@ -162,7 +163,7 @@ extern unsigned short ldw_brx(volatile unsigned char *, int);
# ifndef NO_INLINE
# ifdef __GNUC__
# if (defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)) && defined(__alpha__)
# if (defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)) && (defined(__alpha__))
# ifdef linux
/* for Linux on Alpha, we use the LIBC _inx/_outx routines */
@ -494,11 +495,16 @@ __ustw (unsigned long r5, unsigned short * r11)
# undef outb
# undef outw
# undef outl
# undef inb
# undef inw
# undef inl
extern void outb(unsigned long port, unsigned char val);
extern void outw(unsigned long port, unsigned short val);
extern void outl(unsigned long port, unsigned int val);
extern unsigned int inb(unsigned long port);
extern unsigned int inw(unsigned long port);
extern unsigned int inl(unsigned long port);
# define outb(a,b) _outb(b,a)
# define outw(a,b) _outw(b,a)
# define outl(a,b) _outl(b,a)
# elif defined(linux) && defined(__amd64__)
# include <inttypes.h>

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@ -1857,7 +1857,7 @@ xf86RegisterResources(int entityIndex, resList list, unsigned long access)
range.type = (range.type & ~ResAccMask) | (access & ResAccMask);
}
range.type &= ~ResEstimated; /* Not allowed for drivers */
#if !(defined(__alpha__) && defined(linux))
#if !((defined(__alpha__) || (defined(__ia64__))) && defined(linux))
/* On Alpha Linux, do not check for conflicts, trust the kernel. */
if (checkConflict(&range, Acc, entityIndex, SETUP,TRUE))
res = xf86AddResToList(res,&range,entityIndex);
@ -2477,8 +2477,8 @@ xf86PostProbe(void)
#endif
}
xf86FreeResList(acc);
#if !(defined(__alpha__) && defined(linux)) && \
!(defined(__ia64__) && defined(linux)) && \
!(defined(__sparc64__) && defined(__OpenBSD__))
/*
* No need to validate on Alpha Linux or OpenBSD/sparc64,

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@ -1621,10 +1621,12 @@ getValidBIOSBase(PCITAG tag, int num)
m = m->next;
}
} else {
#if !defined(__ia64__) /* on ia64, trust the kernel, don't look for overlaps */
if (!xf86IsSubsetOf(range, m) ||
ChkConflict(&range, avoid, SETUP)
|| (mem && ChkConflict(&range, mem, SETUP)))
ret = 0;
#endif
}
xf86FreeResList(avoid);

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@ -1093,12 +1093,12 @@ LOOKUP xfree86LookupTab[] = {
#endif
#endif
#if defined(__ia64__)
SYMFUNC(_outw)
SYMFUNC(_outb)
SYMFUNC(_outl)
SYMFUNC(_inb)
SYMFUNC(_inw)
SYMFUNC(_inl)
SYMFUNC(outw)
SYMFUNC(outb)
SYMFUNC(outl)
SYMFUNC(inb)
SYMFUNC(inw)
SYMFUNC(inl)
#endif
#if defined(__arm__)
SYMFUNC(outw)

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@ -254,7 +254,6 @@
# if defined(linux)
# define ARCH_PCI_INIT linuxPciInit
# define INCLUDE_XF86_MAP_PCI_MEM
# define INCLUDE_XF86_NO_DOMAIN
# elif defined(FreeBSD)
# define ARCH_PCI_INIT freebsdPciInit
# define INCLUDE_XF86_MAP_PCI_MEM

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@ -59,6 +59,7 @@
static CARD32 linuxPciCfgRead(PCITAG tag, int off);
static void linuxPciCfgWrite(PCITAG, int off, CARD32 val);
static void linuxPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits);
static ADDRESS linuxTransAddrBusToHost(PCITAG tag, PciAddrType type, ADDRESS addr);
#if defined(__powerpc__)
static ADDRESS linuxPpcBusAddrToHostAddr(PCITAG, PciAddrType, ADDRESS);
static ADDRESS linuxPpcHostAddrToBusAddr(PCITAG, PciAddrType, ADDRESS);
@ -73,7 +74,7 @@ static pciBusFuncs_t linuxFuncs0 = {
/* pciAddrBusToHost */ linuxPpcBusAddrToHostAddr
#else
/* pciAddrHostToBus */ pciAddrNOOP,
/* pciAddrBusToHost */ pciAddrNOOP
/* pciAddrBusToHost */ linuxTransAddrBusToHost
#endif
};
@ -201,6 +202,26 @@ linuxPciCfgSetBits(PCITAG tag, int off, CARD32 mask, CARD32 bits)
}
}
/*
* This function will convert a BAR address into a host address
* suitable for passing into the mmap function of a /proc/bus
* device.
*/
ADDRESS linuxTransAddrBusToHost(PCITAG tag, PciAddrType type, ADDRESS addr)
{
ADDRESS ret = xf86GetOSOffsetFromPCI(tag, PCI_MEM|PCI_IO, addr);
if (ret)
return ret;
/*
* if it is not a BAR address, it must be legacy, (or wrong)
* return it as is..
*/
return addr;
}
#if defined(__powerpc__)
#ifndef __NR_pciconfig_iobase
@ -402,6 +423,9 @@ xf86GetPciDomain(PCITAG Tag)
if (pPCI && (result = PCI_DOM_FROM_BUS(pPCI->busnum)))
return result;
if (pPCI->fakeDevice)
return 1; /* Domain 0 is reserved */
if ((fd = linuxPciOpenFile(pPCI ? pPCI->tag : 0,FALSE)) < 0)
return 0;
@ -442,7 +466,7 @@ linuxMapPci(int ScreenNum, int Flags, PCITAG Tag,
if (Flags & VIDMEM_FRAMEBUFFER)
mmapflags = MAP_SHARED | MAP_WRITECOMBINED;
else
mmapflags = MAP_SHARED | MAP_NONCACHED
mmapflags = MAP_SHARED | MAP_NONCACHED;
#else /* !__ia64__ */
@ -467,7 +491,7 @@ linuxMapPci(int ScreenNum, int Flags, PCITAG Tag,
result = mmap(NULL, Size + Offset, prot, mmapflags, fd, realBase);
if (!result || ((pointer)result == MAP_FAILED))
FatalError("linuxMapPci() mmap failure: %s\n", strerror(errno));
return NULL;
xf86MakeNewMapping(ScreenNum, Flags, realBase, Size + Offset, result);
@ -480,38 +504,142 @@ linuxMapPci(int ScreenNum, int Flags, PCITAG Tag,
return NULL;
}
#define MAX_DOMAINS 257
static pointer DomainMmappedIO[MAX_DOMAINS];
static pointer DomainMmappedMem[MAX_DOMAINS];
static int
linuxOpenLegacy(PCITAG Tag, char *name)
{
#define PREFIX "/sys/class/pci_bus/%04x:%02x/%s"
char *path;
int domain, bus;
pciBusInfo_t *pBusInfo;
pciConfigPtr bridge = NULL;
int fd;
path = xalloc(strlen(PREFIX) + strlen(name));
if (!path)
return -1;
for (;;) {
domain = xf86GetPciDomain(Tag);
bus = PCI_BUS_NO_DOMAIN(PCI_BUS_FROM_TAG(Tag));
/* Domain 0 is reserved -- see xf86GetPciDomain() */
if ((domain <= 0) || (domain >= MAX_DOMAINS))
FatalError("linuxOpenLegacy(): domain out of range\n");
sprintf(path, PREFIX, domain - 1, bus, name);
fd = open(path, O_RDWR);
if (fd >= 0) {
xfree(path);
return fd;
}
pBusInfo = pciBusInfo[bus];
if (!pBusInfo || (bridge == pBusInfo->bridge) ||
!(bridge = pBusInfo->bridge)) {
xfree(path);
return -1;
}
Tag = bridge->tag;
}
xfree(path);
return fd;
}
/*
* xf86MapDomainMemory - memory map PCI domain memory
*
* This routine maps the memory region in the domain specified by Tag and
* returns a pointer to it. The pointer is saved for future use if it's in
* the legacy ISA memory space (memory in a domain between 0 and 1MB).
*/
pointer
xf86MapDomainMemory(int ScreenNum, int Flags, PCITAG Tag,
ADDRESS Base, unsigned long Size)
{
return linuxMapPci(ScreenNum, Flags, Tag, Base, Size, PCIIOC_MMAP_IS_MEM);
int domain = xf86GetPciDomain(Tag);
int fd;
/*
* We use /proc/bus/pci on non-legacy addresses or if the Linux sysfs
* legacy_mem interface is unavailable.
*/
if (Base > 1024*1024)
return linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
PCIIOC_MMAP_IS_MEM);
if ((fd = linuxOpenLegacy(Tag, "legacy_mem")) < 0)
return linuxMapPci(ScreenNum, Flags, Tag, Base, Size,
PCIIOC_MMAP_IS_MEM);
/* If we haven't already mapped this legacy space, try to. */
if (!DomainMmappedMem[domain]) {
DomainMmappedMem[domain] = mmap(NULL, 1024*1024, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, 0);
if (DomainMmappedMem[domain] == MAP_FAILED) {
close(fd);
perror("mmap failure");
FatalError("xf86MapDomainMem(): mmap() failure\n");
}
}
close(fd);
return (pointer)((char *)DomainMmappedMem[domain] + Base);
}
#define MAX_DOMAINS 257
static pointer DomainMmappedIO[MAX_DOMAINS];
/* This has no means of returning failure, so all errors are fatal */
/*
* xf86MapDomainIO - map I/O space in this domain
*
* Each domain has a legacy ISA I/O space. This routine will try to
* map it using the Linux sysfs legacy_io interface. If that fails,
* it'll fall back to using /proc/bus/pci.
*
* If the legacy_io interface *does* exist, the file descriptor (fd below)
* will be saved in the DomainMmappedIO array in the upper bits of the
* pointer. Callers will do I/O with small port numbers (<64k values), so
* the platform I/O code can extract the port number and the fd, lseek to
* the port number in the legacy_io file, and issue the read or write.
*
* This has no means of returning failure, so all errors are fatal
*/
IOADDRESS
xf86MapDomainIO(int ScreenNum, int Flags, PCITAG Tag,
IOADDRESS Base, unsigned long Size)
{
int domain = xf86GetPciDomain(Tag);
int fd;
if ((domain <= 0) || (domain >= MAX_DOMAINS))
FatalError("xf86MapDomainIO(): domain out of range\n");
if (DomainMmappedIO[domain])
return (IOADDRESS)DomainMmappedIO[domain] + Base;
/* Permanently map all of I/O space */
if (!DomainMmappedIO[domain]) {
DomainMmappedIO[domain] = linuxMapPci(ScreenNum, Flags, Tag,
0, linuxGetIOSize(Tag),
PCIIOC_MMAP_IS_IO);
if (!DomainMmappedIO[domain])
FatalError("xf86MapDomainIO(): mmap() failure\n");
if ((fd = linuxOpenLegacy(Tag, "legacy_io")) < 0) {
DomainMmappedIO[domain] = linuxMapPci(ScreenNum, Flags, Tag,
0, linuxGetIOSize(Tag),
PCIIOC_MMAP_IS_IO);
/* ia64 can't mmap legacy IO port space */
if (!DomainMmappedIO[domain])
return Base;
}
else { /* legacy_io file exists, encode fd */
DomainMmappedIO[domain] = (pointer)(fd << 24);
}
return (IOADDRESS)DomainMmappedIO[domain] + Base;
}
/*
* xf86ReadDomainMemory - copy from domain memory into a caller supplied buffer
*/
int
xf86ReadDomainMemory(PCITAG Tag, ADDRESS Base, int Len, unsigned char *Buf)
{
@ -520,6 +648,40 @@ xf86ReadDomainMemory(PCITAG Tag, ADDRESS Base, int Len, unsigned char *Buf)
unsigned long size;
int len, pagemask = getpagesize() - 1;
unsigned int i, dom, bus, dev, func;
unsigned int fd;
char file[256];
struct stat st;
dom = PCI_DOM_FROM_TAG(Tag);
bus = PCI_BUS_FROM_TAG(Tag);
dev = PCI_DEV_FROM_TAG(Tag);
func = PCI_FUNC_FROM_TAG(Tag);
sprintf(file, "/sys/devices/pci%04x:%02x/%04x:%02x:%02x.%1x/rom",
dom, bus, dom, bus, dev, func);
/*
* If the caller wants the ROM and the sysfs rom interface exists,
* try to use it instead of reading it from /proc/bus/pci.
*/
if (((Base & 0xfffff) == 0xC0000) && (stat(file, &st) == 0)) {
if ((fd = open(file, O_RDWR)))
Base = 0x0;
/* enable the ROM first */
write(fd, "1", 2);
lseek(fd, 0, SEEK_SET);
/* copy the ROM until we hit Len, EOF or read error */
for (i = 0; i < Len && read(fd, Buf, 1) > 0; Buf++, i++)
;
write(fd, "0", 2);
close(fd);
return Len;
}
/* Ensure page boundaries */
offset = Base & ~pagemask;
size = ((Base + Len + pagemask) & ~pagemask) - offset;

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@ -26,6 +26,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <unistd.h>
#include "ia64Pci.h"
@ -35,11 +36,24 @@
IA64Chipset OS_PROBE_PCI_CHIPSET(scanpciWrapperOpt flags)
{
struct stat unused;
struct utsname utsName;
if (!stat("/proc/bus/mckinley/zx1",&unused)
|| !stat("/proc/bus/mckinley/zx2",&unused))
return ZX1_CHIPSET;
if (!stat("/proc/sgi_sn/licenseID", &unused)) {
/*
* We need a 2.6.11 or better kernel for Altix support
*/
uname(&utsName);
if (!strstr(utsName.release, "2.6.11")) {
ErrorF("Kernel 2.6.11 or better needed for Altix support\n");
return NONE_CHIPSET;
}
return ALTIX_CHIPSET;
}
return NONE_CHIPSET;
}
#endif

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@ -83,3 +83,141 @@ xf86GetPciSizeFromOS(PCITAG tag, int index, int* bits)
fclose(file);
return FALSE;
}
/* Query the kvirt address (64bit) of a BAR range from TAG */
Bool
xf86GetPciOffsetFromOS(PCITAG tag, int index, unsigned long* bases)
{
FILE *file;
char c[0x200];
char *res;
unsigned int bus, devfn, dev, fn;
unsigned PCIADDR_TYPE offset[7];
unsigned int num;
if (index > 7)
return FALSE;
if (!(file = fopen("/proc/bus/pci/devices","r")))
return FALSE;
do {
res = fgets(c,0x1ff,file);
if (res) {
num = sscanf(res,
/*bus+dev vendorid deviceid irq */
"%02x%02x\t%*04x%*04x\t%*x"
/* 7 PCI resource base addresses */
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
/* 7 PCI resource sizes, and then optionally a driver name */
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT
"\t" PCIADDR_IGNORE_FMT,
&bus,&devfn,&offset[0],&offset[1],&offset[2],&offset[3],
&offset[4],&offset[5],&offset[6]);
if (num != 9) { /* apparantly not 2.3 style */
fclose(file);
return FALSE;
}
dev = devfn >> 3;
fn = devfn & 0x7;
if (tag == pciTag(bus,dev,fn)) {
/* return the offset for the index requested */
*bases = offset[index];
fclose(file);
return TRUE;
}
}
} while (res);
fclose(file);
return FALSE;
}
/* Query the kvirt address (64bit) of a BAR range from size for a given TAG */
unsigned long
xf86GetOSOffsetFromPCI(PCITAG tag, int space, unsigned long base)
{
FILE *file;
char c[0x200];
char *res;
unsigned int bus, devfn, dev, fn;
unsigned PCIADDR_TYPE offset[7];
unsigned PCIADDR_TYPE size[7];
unsigned int num;
unsigned int ndx;
if (!(file = fopen("/proc/bus/pci/devices","r")))
return NULL;
do {
res = fgets(c,0x1ff,file);
if (res) {
num = sscanf(res,
/*bus+dev vendorid deviceid irq */
"%02x%02x\t%*04x%*04x\t%*x"
/* 7 PCI resource base addresses */
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
/* 7 PCI resource sizes, and then optionally a driver name */
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT
"\t" PCIADDR_FMT,
&bus,&devfn,&offset[0],&offset[1],&offset[2],&offset[3],
&offset[4],&offset[5],&offset[6], &size[0], &size[1], &size[2],
&size[3], &size[4], &size[5], &size[6]);
if (num != 16) { /* apparantly not 2.3 style */
fclose(file);
return NULL;
}
dev = devfn >> 3;
fn = devfn & 0x7;
if (tag == pciTag(bus,dev,fn)) {
/* ok now look through all the BAR values of this device */
for (ndx=0; ndx<7; ndx++) {
unsigned long savePtr;
/*
* remember to lop of the last 4bits of the BAR values as they are
* memory attributes
*/
if (ndx == 6)
savePtr = (0xFFFFFFF0) &
pciReadLong(tag, PCI_CMD_BIOS_REG);
else /* this the ROM bar */
savePtr = (0xFFFFFFF0) &
pciReadLong(tag, PCI_CMD_BASE_REG + (0x4 * ndx));
/* find the index of the incoming base */
if (base >= savePtr && base <= (savePtr + size[ndx])) {
fclose(file);
return ( ~(0xFUL) & (offset[ndx] + (base - savePtr)));
}
}
}
}
} while (res);
fclose(file);
return NULL;
}

View File

@ -29,12 +29,165 @@
* This file contains the glue needed to support various IA-64 chipsets.
*/
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <linux/pci.h>
#include "compiler.h"
#include "460gxPCI.h"
#include "e8870PCI.h"
#include "zx1PCI.h"
#include "altixPCI.h"
#include "Pci.h"
#include "ia64Pci.h"
/*
* We use special in/out routines here since Altix platforms require the
* use of the sysfs legacy_io interface. The legacy_io file maps to the I/O
* space of a given PCI domain; reads and writes are used to do port I/O.
* The file descriptor for the file is stored in the upper bits of the
* value passed in by the caller, and is created and populated by
* xf86MapDomainIO.
*
* If the legacy_io interface doesn't exist, we fall back to the glibc in/out
* routines, which are prefixed by an underscore (e.g. _outb).
*/
static int ia64_port_to_fd(unsigned long port)
{
return (port >> 24) & 0xffffffff;
}
void outb(unsigned long port, unsigned char val)
{
int fd = ia64_port_to_fd(port);
if (!fd) {
_outb(val, port & 0xffff);
goto out;
}
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
goto out;
}
if (write(fd, &val, 1) != 1) {
ErrorF("I/O write failed\n");
goto out;
}
out:
return;
}
void outw(unsigned long port, unsigned short val)
{
int fd = ia64_port_to_fd(port);
if (!fd) {
_outw(val, port & 0xffff);
goto out;
}
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
goto out;
}
if (write(fd, &val, 2) != 2) {
ErrorF("I/O write failed\n");
goto out;
}
out:
return;
}
void outl(unsigned long port, unsigned int val)
{
int fd = ia64_port_to_fd(port);
if (!fd) {
_outl(val, port & 0xffff);
goto out;
}
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
goto out;
}
if (write(fd, &val, 4) != 4) {
ErrorF("I/O write failed\n");
goto out;
}
out:
return;
}
unsigned int inb(unsigned long port)
{
int fd = ia64_port_to_fd(port);
unsigned char val;
if (!fd)
return _inb(port & 0xffff);
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
val = -1;
goto out;
}
if (read(fd, &val, 1) != 1) {
ErrorF("I/O read failed\n");
val = -1;
goto out;
}
out:
return val;
}
unsigned int inw(unsigned long port)
{
int fd = ia64_port_to_fd(port);
unsigned short val;
if (!fd)
return _inw(port & 0xffff);
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
val = -1;
goto out;
}
if (read(fd, &val, 2) != 2) {
ErrorF("I/O read failed\n");
val = -1;
goto out;
}
out:
return val;
}
unsigned int inl(unsigned long port)
{
int fd = ia64_port_to_fd(port);
unsigned int val;
if (!fd)
return _inl(port & 0xffff);
if (lseek(fd, port & 0xffff, SEEK_SET) == -1) {
ErrorF("I/O lseek failed\n");
val = -1;
goto out;
}
if (read(fd, &val, 4) != 4) {
ErrorF("I/O read failed\n");
val = -1;
goto out;
}
out:
return val;
}
void
ia64ScanPCIWrapper(scanpciWrapperOpt flags)
{
@ -58,6 +211,9 @@ ia64ScanPCIWrapper(scanpciWrapperOpt flags)
case ZX1_CHIPSET:
xf86PreScanZX1();
return;
case ALTIX_CHIPSET:
xf86PreScanAltix();
return;
default:
return;
}
@ -74,6 +230,9 @@ ia64ScanPCIWrapper(scanpciWrapperOpt flags)
case ZX1_CHIPSET:
xf86PostScanZX1();
return;
case ALTIX_CHIPSET:
xf86PostScanAltix();
return;
default:
return;
}

View File

@ -32,7 +32,8 @@ typedef enum {
NONE_CHIPSET,
I460GX_CHIPSET,
E8870_CHIPSET,
ZX1_CHIPSET
ZX1_CHIPSET,
ALTIX_CHIPSET
} IA64Chipset;
# ifdef OS_PROBE_PCI_CHIPSET

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@ -256,6 +256,8 @@ resPtr xf86AccResFromOS(resPtr ret);
#endif /* NEED_OS_RAC_PROTOS */
extern Bool xf86GetPciSizeFromOS(PCITAG tag, int indx, int* bits);
extern Bool xf86GetPciOffsetFromOS(PCITAG tag, int indx, unsigned long* bases);
extern unsigned long xf86GetOSOffsetFromPCI(PCITAG tag, int space, unsigned long base);
extern void xf86MakeNewMapping(int, int, unsigned long, unsigned long, pointer);
extern void xf86InitVidMem(void);