Checked in the following released items:

xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz

1 files changed, 1106 insertions, 0 deletions

diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
new file mode 100644
index 000000000..1bd2d575f
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
@@ -0,0 +1,1106 @@
+/*
+ * Copyright 1992 by Orest Zborowski <obz@Kodak.com>
+ * Copyright 1993 by David Wexelblat <dwex@goblin.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 Orest Zborowski and David Wexelblat
+ * not be used in advertising or publicity pertaining to distribution of
+ * the software without specific, written prior permission.  Orest Zborowski
+ * and David Wexelblat make no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or
+ * implied warranty.
+ *
+ * OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT 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 <errno.h>
+#include <string.h>
+
+#include <X11/X.h>
+#include "input.h"
+#include "scrnintstr.h"
+
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+#include "lnx.h"
+#ifdef __alpha__
+#include "shared/xf86Axp.h"
+#endif
+
+#ifdef HAS_MTRR_SUPPORT
+#include <asm/mtrr.h>
+#endif
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
+static Bool ExtendedEnabled = FALSE;
+
+#ifdef __ia64__
+
+#include "compiler.h"
+#include <sys/io.h>
+
+#elif !defined(__powerpc__) && \
+      !defined(__mc68000__) && \
+      !defined(__sparc__) && \
+      !defined(__mips__) && \
+      !defined(__arm__)
+
+/*
+ * Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare
+ * these.
+ */
+extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on);
+extern int iopl(int __level);
+
+#endif
+
+#ifdef __alpha__
+
+# ifdef LIBC_IS_FIXED
+extern void sethae(unsigned long hae);
+# else
+#  include <unistd.h>
+#  define sethae(x) syscall(301,x);
+# endif
+
+/* define to test the Sparse addressing on a non-Jensen */
+# ifdef TEST_JENSEN_CODE 
+#  define isJensen (1)
+# else
+#  define isJensen (axpSystem == JENSEN)
+# endif
+
+# define BUS_BASE bus_base
+
+#else 
+
+#define BUS_BASE (0)
+
+#endif /*  __alpha__ */
+
+/***************************************************************************/
+/* Video Memory Mapping section                                            */
+/***************************************************************************/
+
+static pointer mapVidMem(int, unsigned long, unsigned long, int);
+static void unmapVidMem(int, pointer, unsigned long);
+#if defined (__alpha__) 
+static pointer mapVidMemSparse(int, unsigned long, unsigned long, int);
+extern axpDevice lnxGetAXP(void);
+static void unmapVidMemSparse(int, pointer, unsigned long);
+# if defined(JENSEN_SUPPORT)
+static pointer mapVidMemJensen(int, unsigned long, unsigned long, int);
+static void unmapVidMemJensen(int, pointer, unsigned long);
+# endif
+static axpDevice axpSystem = -1;
+static Bool needSparse;
+static unsigned long hae_thresh;
+static unsigned long hae_mask;
+static unsigned long bus_base;
+static unsigned long sparse_size;
+#endif
+
+#ifdef HAS_MTRR_SUPPORT
+
+#define SPLIT_WC_REGIONS 1
+
+static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType);
+static void undoWC(int, pointer);
+
+/* The file desc for /proc/mtrr. Once opened, left opened, and the mtrr
+   driver will clean up when we exit. */
+#define MTRR_FD_UNOPENED (-1)	/* We have yet to open /proc/mtrr */
+#define MTRR_FD_PROBLEM (-2)	/* We tried to open /proc/mtrr, but had
+				   a problem. */
+static int mtrr_fd = MTRR_FD_UNOPENED;
+
+/* Open /proc/mtrr. FALSE on failure. Will always fail on Linux 2.0, 
+   and will fail on Linux 2.2 with MTRR support configured out,
+   so verbosity should be chosen appropriately. */
+static Bool
+mtrr_open(int verbosity)
+{
+	/* Only report absence of /proc/mtrr once. */
+	static Bool warned = FALSE;
+
+	if (mtrr_fd == MTRR_FD_UNOPENED) { 
+		mtrr_fd = open("/proc/mtrr", O_WRONLY);
+
+		if (mtrr_fd < 0)
+			mtrr_fd = MTRR_FD_PROBLEM;
+	}
+
+	if (mtrr_fd == MTRR_FD_PROBLEM) {
+		/* To make sure we only ever warn once, need to check
+		   verbosity outside xf86MsgVerb */
+		if (!warned && verbosity <= xf86GetVerbosity()) {
+			xf86MsgVerb(X_WARNING, verbosity,
+				  "System lacks support for changing MTRRs\n");
+			warned = TRUE;
+		}
+
+		return FALSE;
+	}
+	else
+		return TRUE;
+}
+
+/*
+ * We maintain a list of WC regions for each physical mapping so they can
+ * be undone when unmapping.
+ */
+
+struct mtrr_wc_region {
+	struct mtrr_sentry	sentry;
+	Bool			added;		/* added WC or removed it */
+	struct mtrr_wc_region *	next;
+};
+
+
+static struct mtrr_wc_region *
+mtrr_cull_wc_region(int screenNum, unsigned long base, unsigned long size,
+		      MessageType from)
+{
+	/* Some BIOS writers thought that setting wc over the mmio
+	   region of a graphics devices was a good idea. Try to fix
+	   it. */
+
+	struct mtrr_gentry gent;
+	struct mtrr_wc_region *wcreturn = NULL, *wcr;
+	int count, ret=0;
+
+	/* Linux 2.0 users should not get a warning without -verbose */
+	if (!mtrr_open(2))
+		return NULL;
+
+	for (gent.regnum = 0; 
+	     ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0;
+	     gent.regnum++) {
+		if (gent.type != MTRR_TYPE_WRCOMB
+		    || gent.base + gent.size <= base
+		    || base + size <= gent.base)
+			continue;
+
+		/* Found an overlapping region. Delete it. */
+		
+		wcr = xalloc(sizeof(*wcr));
+		if (!wcr)
+			return NULL;
+		wcr->sentry.base = gent.base;
+		wcr->sentry.size = gent.size;
+		wcr->sentry.type = MTRR_TYPE_WRCOMB;
+		wcr->added = FALSE;
+		
+		count = 3;
+		while (count-- && 
+		       (ret = ioctl(mtrr_fd, MTRRIOC_KILL_ENTRY, &(wcr->sentry))) < 0);
+		
+		if (ret >= 0) {
+			xf86DrvMsg(screenNum, from,
+				   "Removed MMIO write-combining range "
+				   "(0x%lx,0x%lx)\n",
+				   (unsigned long) gent.base, (unsigned long) gent.size);
+			wcr->next = wcreturn;
+			wcreturn = wcr;
+			gent.regnum--;
+		} else {
+			xfree(wcr);
+			xf86DrvMsgVerb(screenNum, X_WARNING, 0,
+				   "Failed to remove MMIO "
+				   "write-combining range (0x%lx,0x%lx)\n",
+				       gent.base, (unsigned long) gent.size);
+		}
+	}
+	return wcreturn;
+}
+
+
+static struct mtrr_wc_region *
+mtrr_remove_offending(int screenNum, unsigned long base, unsigned long size,
+		      MessageType from)
+{
+    struct mtrr_gentry gent;
+    struct mtrr_wc_region *wcreturn = NULL, **wcr;
+
+    if (!mtrr_open(2))
+	return NULL;
+
+    wcr = &wcreturn;
+    for (gent.regnum = 0; 
+	 ioctl(mtrr_fd, MTRRIOC_GET_ENTRY, &gent) >= 0; gent.regnum++ ) {
+	if (gent.type == MTRR_TYPE_WRCOMB
+	    && ((gent.base >= base && gent.base + gent.size < base + size) || 
+		(gent.base >  base && gent.base + gent.size <= base + size))) {
+	    *wcr = mtrr_cull_wc_region(screenNum, gent.base, gent.size, from);
+	    if (*wcr) gent.regnum--;
+	    while(*wcr) {
+		wcr = &((*wcr)->next);
+	    }
+	}
+    }
+    return wcreturn;
+}
+
+
+static struct mtrr_wc_region *
+mtrr_add_wc_region(int screenNum, unsigned long base, unsigned long size,
+		   MessageType from)
+{
+        struct mtrr_wc_region **wcr, *wcreturn, *curwcr;
+
+       /*
+        * There can be only one....
+        */
+
+	wcreturn = mtrr_remove_offending(screenNum, base, size, from);
+	wcr = &wcreturn;
+	while (*wcr) {
+	    wcr = &((*wcr)->next);
+	} 
+
+	/* Linux 2.0 should not warn, unless the user explicitly asks for
+	   WC. */
+
+	if (!mtrr_open(from == X_CONFIG ? 0 : 2))
+		return wcreturn;
+
+	*wcr = curwcr = xalloc(sizeof(**wcr));
+	if (!curwcr)
+	    return wcreturn;
+
+	curwcr->sentry.base = base;
+	curwcr->sentry.size = size;
+	curwcr->sentry.type = MTRR_TYPE_WRCOMB;
+	curwcr->added = TRUE;
+	curwcr->next = NULL;
+
+#if SPLIT_WC_REGIONS
+	/*
+	 * Splits up the write-combining region if it is not aligned on a
+ 	 * size boundary.
+	 */
+
+	{
+	    unsigned long lbase, d_size = 1;
+	    unsigned long n_size = size;
+	    unsigned long n_base = base;
+
+	    for (lbase = n_base, d_size = 1; !(lbase & 1);
+		 lbase = lbase >> 1, d_size <<= 1);
+	    while (d_size > n_size)
+		d_size = d_size >> 1;
+#ifdef DEBUG
+	    ErrorF("WC_BASE: 0x%lx WC_END: 0x%lx\n",base,base+d_size-1);
+#endif
+	    n_base += d_size;
+	    n_size -= d_size;
+	    if (n_size) {
+		xf86DrvMsgVerb(screenNum,X_INFO,3,"Splitting WC range: "
+			       "base: 0x%lx, size: 0x%lx\n",base,size);
+		curwcr->next = mtrr_add_wc_region(screenNum, n_base, n_size,from);
+	    }
+	    curwcr->sentry.size = d_size;
+	} 
+	
+	/*****************************************************************/
+#endif /* SPLIT_WC_REGIONS */
+
+	if (ioctl(mtrr_fd, MTRRIOC_ADD_ENTRY, &curwcr->sentry) >= 0) {
+		/* Avoid printing on every VT switch */
+		if (xf86ServerIsInitialising()) {
+			xf86DrvMsg(screenNum, from,
+				   "Write-combining range (0x%lx,0x%lx)\n",
+				   base, size);
+		}
+		return wcreturn;
+	}
+	else {
+	        *wcr = curwcr->next;
+		xfree(curwcr);
+		
+		/* Don't complain about the VGA region: MTRR fixed
+		   regions aren't currently supported, but might be in
+		   the future. */
+		if ((unsigned long)base >= 0x100000) {
+			xf86DrvMsgVerb(screenNum, X_WARNING, 0,
+				"Failed to set up write-combining range "
+				"(0x%lx,0x%lx)\n", base, size);
+		}
+		return wcreturn;
+	}
+}
+
+static void
+mtrr_undo_wc_region(int screenNum, struct mtrr_wc_region *wcr)
+{
+	struct mtrr_wc_region *p, *prev;
+
+	if (mtrr_fd > 0) {
+		p = wcr;
+		while (p) {
+			if (p->added)
+				ioctl(mtrr_fd, MTRRIOC_DEL_ENTRY, &p->sentry);
+			prev = p;
+			p = p->next;
+			xfree(prev);
+		}
+	}
+}
+
+static pointer
+setWC(int screenNum, unsigned long base, unsigned long size, Bool enable,
+      MessageType from)
+{
+	if (enable)
+		return mtrr_add_wc_region(screenNum, base, size, from);
+	else
+		return mtrr_cull_wc_region(screenNum, base, size, from);
+}
+
+static void
+undoWC(int screenNum, pointer regioninfo)
+{
+	mtrr_undo_wc_region(screenNum, regioninfo);
+}
+
+#endif /* HAS_MTRR_SUPPORT */
+
+void
+xf86OSInitVidMem(VidMemInfoPtr pVidMem)
+{
+	pVidMem->linearSupported = TRUE;
+#ifdef __alpha__
+	if (axpSystem == -1) {
+	  axpSystem = lnxGetAXP();
+	  if ((needSparse = (_bus_base_sparse() > 0))) {
+	    hae_thresh = xf86AXPParams[axpSystem].hae_thresh;
+	    hae_mask = xf86AXPParams[axpSystem].hae_mask;
+	    sparse_size = xf86AXPParams[axpSystem].size;
+	  }
+	  bus_base = _bus_base();
+	}
+	if (isJensen) {
+# ifndef JENSEN_SUPPORT
+	  FatalError("Jensen is not supported any more\n"
+		     "If you are intereseted in fixing Jensen support\n"
+		     "please contact xorg@lists.freedesktop.org\n");
+# else
+	  xf86Msg(X_INFO,"Machine type is Jensen\n");
+	  pVidMem->mapMem = mapVidMemJensen;
+	  pVidMem->unmapMem = unmapVidMemJensen;
+# endif /* JENSEN_SUPPORT */
+	} else if (needSparse) {
+	  xf86Msg(X_INFO,"Machine needs sparse mapping\n");
+	  pVidMem->mapMem = mapVidMemSparse;
+	  pVidMem->unmapMem = unmapVidMemSparse;
+	} else {
+	  xf86Msg(X_INFO,"Machine type has 8/16 bit access\n");
+	  pVidMem->mapMem = mapVidMem;
+	  pVidMem->unmapMem = unmapVidMem;
+	}	
+#else
+	pVidMem->mapMem = mapVidMem;
+	pVidMem->unmapMem = unmapVidMem;
+#endif /* __alpha__ */
+
+
+#ifdef HAS_MTRR_SUPPORT
+	pVidMem->setWC = setWC;
+	pVidMem->undoWC = undoWC;
+#endif
+	pVidMem->initialised = TRUE;
+}
+
+#ifdef __sparc__
+/* Basically, you simply cannot do this on Sparc.  You have to do something portable
+ * like use /dev/fb* or mmap() on /proc/bus/pci/X/Y nodes. -DaveM
+ */
+static pointer mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+	return NULL;
+}
+#else
+static pointer
+mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+    pointer base;
+    int fd;
+    int mapflags = MAP_SHARED; 
+    int prot;
+    memType realBase, alignOff;
+
+    realBase = Base & ~(getpagesize() - 1);
+    alignOff = Base - realBase;
+#ifdef DEBUG
+    ErrorF("base: %lx, realBase: %lx, alignOff: %lx \n",
+	   Base,realBase,alignOff);
+#endif
+    
+#if defined(__ia64__) || defined(__arm__) || defined(__s390__)
+#ifndef MAP_WRITECOMBINED
+#define MAP_WRITECOMBINED 0x00010000
+#endif
+#ifndef MAP_NONCACHED
+#define MAP_NONCACHED 0x00020000
+#endif
+    if(flags & VIDMEM_FRAMEBUFFER) 
+        mapflags |= MAP_WRITECOMBINED; 
+    else
+        mapflags |= MAP_NONCACHED; 
+#endif
+
+#if 0
+    /* this will disappear when people upgrade their kernels */
+    fd = open(DEV_MEM,
+	      ((flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR) | O_SYNC);
+#else
+    fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
+#endif
+    if (fd < 0)
+    {
+	FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n",
+		   strerror(errno));
+    }
+
+    if (flags & VIDMEM_READONLY)
+	prot = PROT_READ;
+    else
+	prot = PROT_READ | PROT_WRITE;
+
+    /* This requires linux-0.99.pl10 or above */
+    base = mmap((caddr_t)0, Size + alignOff, prot, mapflags, fd,
+ 		(off_t)realBase  + BUS_BASE);
+    close(fd);
+    if (base == MAP_FAILED) {
+        FatalError("xf86MapVidMem: Could not mmap framebuffer"
+		   " (0x%08lx,0x%lx) (%s)\n", Base, Size,
+		   strerror(errno));
+    }
+#ifdef DEBUG
+    ErrorF("base: %lx aligned base: %lx\n",base, base + alignOff);
+#endif
+    return (char *)base + alignOff;
+}
+#endif /* !(__sparc__) */
+    
+static void
+unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
+{
+    memType alignOff = (memType)Base 
+	- ((memType)Base & ~(getpagesize() - 1));
+    
+#ifdef DEBUG
+    ErrorF("alignment offset: %lx\n",alignOff);
+#endif
+    munmap((caddr_t)((memType)Base - alignOff), (Size + alignOff));
+}
+
+
+/***************************************************************************/
+/* I/O Permissions section                                                 */
+/***************************************************************************/
+
+#if defined(__powerpc__)
+_X_EXPORT volatile unsigned char *ioBase = NULL;
+
+#ifndef __NR_pciconfig_iobase
+#define __NR_pciconfig_iobase	200
+#endif
+
+#endif
+
+_X_EXPORT Bool
+xf86EnableIO(void)
+{
+#if defined(__powerpc__)
+	int fd;
+	unsigned int ioBase_phys;
+#endif
+
+	if (ExtendedEnabled)
+		return TRUE;
+
+#if defined(__powerpc__)
+	ioBase_phys = syscall(__NR_pciconfig_iobase, 2, 0, 0);
+
+	fd = open("/dev/mem", O_RDWR);
+	if (ioBase == NULL) {
+		ioBase = (volatile unsigned char *)mmap(0, 0x20000,
+				PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+				ioBase_phys);
+/* Should this be fatal or just a warning? */
+#if 0
+		if (ioBase == MAP_FAILED) {
+		    xf86Msg(X_WARNING,
+			    "xf86EnableIOPorts: Failed to map iobase (%s)\n",
+			    strerror(errno));
+		    return FALSE;
+		}
+#endif
+	}
+	close(fd);
+#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__) && !defined(__arm__)
+        if (ioperm(0, 1024, 1) || iopl(3)) {
+                if (errno == ENODEV)
+                        ErrorF("xf86EnableIOPorts: no I/O ports found\n");
+                else
+                        FatalError("xf86EnableIOPorts: failed to set IOPL"
+                                   " for I/O (%s)\n", strerror(errno));
+		return FALSE;
+        }
+# if !defined(__alpha__)
+	ioperm(0x40,4,0); /* trap access to the timer chip */
+	ioperm(0x60,4,0); /* trap access to the keyboard controller */
+# endif
+#endif
+	ExtendedEnabled = TRUE;
+
+	return TRUE;
+}
+
+_X_EXPORT void
+xf86DisableIO(void)
+{
+	if (!ExtendedEnabled)
+		return;
+#if defined(__powerpc__)
+	munmap(ioBase, 0x20000);
+	ioBase = NULL;
+#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__)
+	iopl(0);
+	ioperm(0, 1024, 0);
+#endif
+	ExtendedEnabled = FALSE;
+
+	return;
+}
+
+/*
+ * Don't use these two functions.  They can't possibly work.  If you actually
+ * need interrupts off for something, you ought to be doing it in the kernel
+ * anyway.
+ */
+
+_X_EXPORT Bool
+xf86DisableInterrupts()
+{
+	return (TRUE);
+}
+
+_X_EXPORT void
+xf86EnableInterrupts()
+{
+	return;
+}
+
+#if defined (__alpha__)
+
+#define vuip    volatile unsigned int *
+
+extern int readDense8(pointer Base, register unsigned long Offset);
+extern int readDense16(pointer Base, register unsigned long Offset);
+extern int readDense32(pointer Base, register unsigned long Offset);
+extern void
+writeDenseNB8(int Value, pointer Base, register unsigned long Offset);
+extern void
+writeDenseNB16(int Value, pointer Base, register unsigned long Offset);
+extern void
+writeDenseNB32(int Value, pointer Base, register unsigned long Offset);
+extern void
+writeDense8(int Value, pointer Base, register unsigned long Offset);
+extern void
+writeDense16(int Value, pointer Base, register unsigned long Offset);
+extern void
+writeDense32(int Value, pointer Base, register unsigned long Offset);
+
+static int readSparse8(pointer Base, register unsigned long Offset);
+static int readSparse16(pointer Base, register unsigned long Offset);
+static int readSparse32(pointer Base, register unsigned long Offset);
+static void
+writeSparseNB8(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseNB16(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseNB32(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparse8(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparse16(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparse32(int Value, pointer Base, register unsigned long Offset);
+
+#define DENSE_BASE	0x2ff00000000UL
+#define SPARSE_BASE	0x30000000000UL
+
+static unsigned long msb_set = 0;
+
+static pointer
+mapVidMemSparse(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+    int fd, prot;
+    unsigned long ret, rets = 0;
+
+    static Bool was_here = FALSE;
+
+    if (!was_here) {
+      was_here = TRUE;
+
+      xf86WriteMmio8 = writeSparse8;
+      xf86WriteMmio16 = writeSparse16;
+      xf86WriteMmio32 = writeSparse32;
+      xf86WriteMmioNB8 = writeSparseNB8;
+      xf86WriteMmioNB16 = writeSparseNB16;
+      xf86WriteMmioNB32 = writeSparseNB32;
+      xf86ReadMmio8 = readSparse8;
+      xf86ReadMmio16 = readSparse16;
+      xf86ReadMmio32 = readSparse32;
+    }
+	
+    fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
+    if (fd < 0) {
+        FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n",
+		   strerror(errno));
+    }
+
+#if 0
+    xf86Msg(X_INFO,"mapVidMemSparse: try Base 0x%lx size 0x%lx flags 0x%x\n",
+	    Base, Size, flags);
+#endif
+
+    if (flags & VIDMEM_READONLY)
+	prot = PROT_READ;
+    else
+	prot = PROT_READ | PROT_WRITE;
+
+    /* This requirers linux-0.99.pl10 or above */
+
+    /*
+     * Always do DENSE mmap, since read32/write32 currently require it.
+     */
+    ret = (unsigned long)mmap((caddr_t)(DENSE_BASE + Base), Size,
+		   prot, MAP_SHARED, fd,
+		   (off_t) (bus_base + Base));
+
+    /*
+     * Do SPARSE mmap only when MMIO and not MMIO_32BIT, or FRAMEBUFFER
+     * and SPARSE (which should require the use of read/write macros).
+     *
+     * By not SPARSE mmapping an 8MB framebuffer, we can save approx. 256K
+     * bytes worth of pagetable (32 pages).
+     */
+    if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) ||
+	((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE)))
+    {
+        rets = (unsigned long)mmap((caddr_t)(SPARSE_BASE + (Base << 5)),
+				   Size << 5, prot, MAP_SHARED, fd,
+				   (off_t) _bus_base_sparse() + (Base << 5));
+    }
+
+    close(fd);
+      
+    if (ret == (unsigned long)MAP_FAILED) {
+        FatalError("xf86MapVidMemSparse: Could not (dense) mmap fb (%s)\n",
+		   strerror(errno));
+    }
+
+    if (((flags & VIDMEM_MMIO) && !(flags & VIDMEM_MMIO_32BIT)) ||
+	((flags & VIDMEM_FRAMEBUFFER) && (flags & VIDMEM_SPARSE)))
+    {
+        if (rets == (unsigned long)MAP_FAILED ||
+	    rets != (SPARSE_BASE + (Base << 5)))
+	{
+	    FatalError("mapVidMemSparse: Could not (sparse) mmap fb (%s)\n",
+		       strerror(errno));
+	}
+    }
+
+#if 1
+    if (rets)
+        xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx"
+		" to DENSE at 0x%lx and SPARSE at 0x%lx\n",
+		Base, Size, ret, rets);
+    else
+        xf86Msg(X_INFO,"mapVidMemSparse: mapped Base 0x%lx size 0x%lx"
+		" to DENSE only at 0x%lx\n",
+		Base, Size, ret);
+
+#endif
+    return (pointer) ret;
+}
+
+static void
+unmapVidMemSparse(int ScreenNum, pointer Base, unsigned long Size)
+{
+    unsigned long Offset = (unsigned long)Base - DENSE_BASE;
+#if 1
+    xf86Msg(X_INFO,"unmapVidMemSparse: unmapping Base 0x%lx Size 0x%lx\n",
+	    Base, Size);
+#endif
+    /* Unmap DENSE always. */
+    munmap((caddr_t)Base, Size);
+
+    /* Unmap SPARSE always, and ignore error in case we did not map it. */
+    munmap((caddr_t)(SPARSE_BASE + (Offset << 5)), Size << 5);
+}
+
+static int
+readSparse8(pointer Base, register unsigned long Offset)
+{
+    register unsigned long result, shift;
+    register unsigned long msb;
+
+    mem_barrier();
+    Offset += (unsigned long)Base - DENSE_BASE;
+    shift = (Offset & 0x3) << 3;
+    if (Offset >= (hae_thresh)) {
+        msb = Offset & hae_mask;
+        Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb);
+	    msb_set = msb;
+	}
+    }
+
+    mem_barrier();
+    result = *(vuip) (SPARSE_BASE + (Offset << 5));
+    result >>= shift;
+    return 0xffUL & result;
+}
+
+static int
+readSparse16(pointer Base, register unsigned long Offset)
+{
+    register unsigned long result, shift;
+    register unsigned long msb;
+
+    mem_barrier();
+    Offset += (unsigned long)Base - DENSE_BASE;
+    shift = (Offset & 0x2) << 3;
+    if (Offset >= hae_thresh) {
+        msb = Offset & hae_mask;
+        Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb);
+	    msb_set = msb;
+	}
+    }
+
+    mem_barrier();
+    result = *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2)));
+    result >>= shift;
+    return 0xffffUL & result;
+}
+
+static int
+readSparse32(pointer Base, register unsigned long Offset)
+{
+    /* NOTE: this is really using DENSE. */
+    mem_barrier();
+    return *(vuip)((unsigned long)Base+(Offset));
+}
+
+static void
+writeSparse8(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned long msb;
+    register unsigned int b = Value & 0xffU;
+
+    write_mem_barrier();
+    Offset += (unsigned long)Base - DENSE_BASE;
+    if (Offset >= hae_thresh) {
+        msb = Offset & hae_mask;
+	Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb); 
+	    msb_set = msb;
+	}
+    }
+
+    write_mem_barrier();
+    *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101;
+}
+
+static void
+writeSparse16(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned long msb;
+    register unsigned int w = Value & 0xffffU;
+
+    write_mem_barrier();
+    Offset += (unsigned long)Base - DENSE_BASE;
+    if (Offset >= hae_thresh) {
+        msb = Offset & hae_mask;
+	Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb);
+	    msb_set = msb;
+	}
+    }
+
+    write_mem_barrier();
+    *(vuip)(SPARSE_BASE + (Offset<<5) + (1<<(5-2))) = w * 0x00010001;
+}
+
+static void
+writeSparse32(int Value, pointer Base, register unsigned long Offset)
+{
+    /* NOTE: this is really using DENSE. */
+    write_mem_barrier();
+    *(vuip)((unsigned long)Base + (Offset)) = Value;
+    return;
+}
+
+static void
+writeSparseNB8(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned long msb;
+    register unsigned int b = Value & 0xffU;
+
+    Offset += (unsigned long)Base - DENSE_BASE;
+    if (Offset >= hae_thresh) {
+        msb = Offset & hae_mask;
+	Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb);
+	    msb_set = msb;
+	}
+    }
+    *(vuip) (SPARSE_BASE + (Offset << 5)) = b * 0x01010101;
+}
+
+static void
+writeSparseNB16(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned long msb;
+    register unsigned int w = Value & 0xffffU;
+
+    Offset += (unsigned long)Base - DENSE_BASE;
+    if (Offset >= hae_thresh) {
+        msb = Offset & hae_mask;
+	Offset -= msb;
+	if (msb_set != msb) {
+	    sethae(msb);
+	    msb_set = msb;
+	}
+    }
+    *(vuip)(SPARSE_BASE+(Offset<<5)+(1<<(5-2))) = w * 0x00010001;
+}
+
+static void
+writeSparseNB32(int Value, pointer Base, register unsigned long Offset)
+{
+    /* NOTE: this is really using DENSE. */
+    *(vuip)((unsigned long)Base + (Offset)) = Value;
+    return;
+}
+
+_X_EXPORT void (*xf86WriteMmio8)(int Value, pointer Base, unsigned long Offset) 
+     = writeDense8;
+_X_EXPORT void (*xf86WriteMmio16)(int Value, pointer Base, unsigned long Offset)
+     = writeDense16;
+_X_EXPORT void (*xf86WriteMmio32)(int Value, pointer Base, unsigned long Offset)
+     = writeDense32;
+_X_EXPORT void (*xf86WriteMmioNB8)(int Value, pointer Base, unsigned long Offset) 
+     = writeDenseNB8;
+_X_EXPORT void (*xf86WriteMmioNB16)(int Value, pointer Base, unsigned long Offset)
+     = writeDenseNB16;
+_X_EXPORT void (*xf86WriteMmioNB32)(int Value, pointer Base, unsigned long Offset)
+     = writeDenseNB32;
+_X_EXPORT int  (*xf86ReadMmio8)(pointer Base, unsigned long Offset) 
+     = readDense8;
+_X_EXPORT int  (*xf86ReadMmio16)(pointer Base, unsigned long Offset)
+     = readDense16;
+_X_EXPORT int  (*xf86ReadMmio32)(pointer Base, unsigned long Offset)
+     = readDense32;
+
+#ifdef JENSEN_SUPPORT
+
+static int
+readSparseJensen8(pointer Base, register unsigned long Offset);
+static int
+readSparseJensen16(pointer Base, register unsigned long Offset);
+static int
+readSparseJensen32(pointer Base, register unsigned long Offset);
+static void
+writeSparseJensen8(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseJensen16(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseJensen32(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseJensenNB8(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseJensenNB16(int Value, pointer Base, register unsigned long Offset);
+static void
+writeSparseJensenNB32(int Value, pointer Base, register unsigned long Offset);
+
+/*
+ * The Jensen lacks dense memory, thus we have to address the bus via
+ * the sparse addressing scheme.
+ *
+ * Martin Ostermann (ost@comnets.rwth-aachen.de) - Apr.-Sep. 1996
+ */
+
+#ifdef TEST_JENSEN_CODE 
+#define SPARSE (5)
+#else
+#define SPARSE (7)
+#endif
+
+#define JENSEN_SHIFT(x) ((long)x<<SPARSE)
+
+static pointer
+mapVidMemJensen(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+  pointer base;
+  int fd, prot;
+
+  xf86WriteMmio8 = writeSparseJensen8;
+  xf86WriteMmio16 = writeSparseJensen16;
+  xf86WriteMmio32 = writeSparseJensen32;
+  xf86WriteMmioNB8 = writeSparseJensenNB8;
+  xf86WriteMmioNB16 = writeSparseJensenNB16;
+  xf86WriteMmioNB32 = writeSparseJensenNB32;
+  xf86ReadMmio8 = readSparseJensen8;
+  xf86ReadMmio16 = readSparseJensen16;
+  xf86ReadMmio32 = readSparseJensen32;
+
+  fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
+  if (fd < 0) {
+    FatalError("xf86MapVidMem: failed to open " DEV_MEM " (%s)\n",
+	       strerror(errno));
+  }
+
+  if (flags & VIDMEM_READONLY)
+    prot = PROT_READ;
+  else
+    prot = PROT_READ | PROT_WRITE;
+
+  /* This requires linux-0.99.pl10 or above */
+  base = mmap((caddr_t)0, JENSEN_SHIFT(Size),
+	      prot, MAP_SHARED, fd,
+	      (off_t)(JENSEN_SHIFT((off_t)Base) + _bus_base_sparse()));
+  close(fd);
+  if (base == MAP_FAILED) {
+    FatalError("xf86MapVidMem: Could not mmap framebuffer"
+	       " (0x%08x,0x%x) (%s)\n", Base, Size,
+	       strerror(errno));
+  }
+  return base;
+}
+
+static void
+unmapVidMemJensen(int ScreenNum, pointer Base, unsigned long Size)
+{
+  munmap((caddr_t)Base, JENSEN_SHIFT(Size));
+}
+
+static int
+readSparseJensen8(pointer Base, register unsigned long Offset)
+{
+    register unsigned long result, shift;
+
+    mem_barrier();
+    shift = (Offset & 0x3) << 3;
+
+    result = *(vuip) ((unsigned long)Base + (Offset << SPARSE));
+
+    result >>= shift;
+    return 0xffUL & result;
+}
+
+static int
+readSparseJensen16(pointer Base, register unsigned long Offset)
+{
+    register unsigned long result, shift;
+
+    mem_barrier();
+    shift = (Offset & 0x2) << 3;
+
+    result = *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(1<<(SPARSE-2)));
+
+    result >>= shift;
+    return 0xffffUL & result;
+}
+
+static int
+readSparseJensen32(pointer Base, register unsigned long Offset)
+{
+    register unsigned long result;
+
+    mem_barrier();
+    result = *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(3<<(SPARSE-2)));
+
+    return result;
+}
+
+static void
+writeSparseJensen8(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned int b = Value & 0xffU;
+
+    write_mem_barrier();
+    *(vuip) ((unsigned long)Base + (Offset << SPARSE)) = b * 0x01010101;
+}
+
+static void
+writeSparseJensen16(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned int w = Value & 0xffffU;
+
+    write_mem_barrier();
+    *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(1<<(SPARSE-2))) =
+      w * 0x00010001;
+}
+
+static void
+writeSparseJensen32(int Value, pointer Base, register unsigned long Offset)
+{
+    write_mem_barrier();
+    *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(3<<(SPARSE-2))) = Value;
+}
+
+static void
+writeSparseJensenNB8(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned int b = Value & 0xffU;
+
+    *(vuip) ((unsigned long)Base + (Offset << SPARSE)) = b * 0x01010101;
+}
+
+static void
+writeSparseJensenNB16(int Value, pointer Base, register unsigned long Offset)
+{
+    register unsigned int w = Value & 0xffffU;
+
+    *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(1<<(SPARSE-2))) =
+      w * 0x00010001;
+}
+
+static void
+writeSparseJensenNB32(int Value, pointer Base, register unsigned long Offset)
+{
+    *(vuip)((unsigned long)Base+(Offset<<SPARSE)+(3<<(SPARSE-2))) = Value;
+}
+#endif /* JENSEN_SUPPORT */
+
+#endif /* __alpha__ */