libX11 libXext libXft mesa libxcb mkfontscale pixman xserver

xkeyboard-config git update 19 oct 2011

1 files changed, 541 insertions, 544 deletions

diff --git a/xorg-server/hw/xfree86/os-support/linux/int10/linux.c b/xorg-server/hw/xfree86/os-support/linux/int10/linux.c
index e3c8a984d..564447ff6 100644
--- a/xorg-server/hw/xfree86/os-support/linux/int10/linux.c
+++ b/xorg-server/hw/xfree86/os-support/linux/int10/linux.c
@@ -1,544 +1,541 @@
-/*

- * linux specific part of the int10 module

- * Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2008 Egbert Eich

- */

-#ifdef HAVE_XORG_CONFIG_H

-#include <xorg-config.h>

-#endif

-

-#include "xf86.h"

-#include "xf86_OSproc.h"

-#include "xf86Pci.h"

-#include "compiler.h"

-#define _INT10_PRIVATE

-#include "xf86int10.h"

-#ifdef __sparc__

-#define DEV_MEM "/dev/fb"

-#else

-#define DEV_MEM "/dev/mem"

-#endif

-#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1)

-#define SHMERRORPTR (pointer)(-1)

-

-#include <fcntl.h>

-#include <errno.h>

-#include <sys/mman.h>

-#include <sys/ipc.h>

-#include <sys/shm.h>

-#include <unistd.h>

-#include <string.h>

-

-static int counter = 0;

-static unsigned long int10Generation = 0;

-

-static CARD8 read_b(xf86Int10InfoPtr pInt, int addr);

-static CARD16 read_w(xf86Int10InfoPtr pInt, int addr);

-static CARD32 read_l(xf86Int10InfoPtr pInt, int addr);

-static void write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val);

-static void write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val);

-static void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val);

-

-int10MemRec linuxMem = {

-    read_b,

-    read_w,

-    read_l,

-    write_b,

-    write_w,

-    write_l

-};

-

-typedef struct {

-    int lowMem;

-    int highMem;

-    char* base;

-    char* base_high;

-    int screen;

-    char* alloc;

-} linuxInt10Priv;

-

-#if defined DoSubModules

-

-typedef enum {

-    INT10_NOT_LOADED,

-    INT10_LOADED_VM86,

-    INT10_LOADED_X86EMU,

-    INT10_LOAD_FAILED

-} Int10LinuxSubModuleState;

-

-static Int10LinuxSubModuleState loadedSubModule = INT10_NOT_LOADED;

-

-static Int10LinuxSubModuleState int10LinuxLoadSubModule(ScrnInfoPtr pScrn);

-

-#endif /* DoSubModules */

-

-xf86Int10InfoPtr

-xf86ExtendedInitInt10(int entityIndex, int Flags)

-{

-    xf86Int10InfoPtr pInt = NULL;

-    int screen;

-    int fd;

-    static void* vidMem = NULL;

-    static void* sysMem = NULL;

-    void* vMem = NULL;

-    void *options = NULL;

-    int low_mem;

-    int high_mem = -1;

-    char *base = SHMERRORPTR;

-    char *base_high = SHMERRORPTR;

-    int pagesize; 

-    memType cs;

-    legacyVGARec vga;

-    Bool videoBiosMapped = FALSE;

-    

-    if (int10Generation != serverGeneration) {

-	counter = 0;

-	int10Generation = serverGeneration;

-    }

-

-    screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex;

-

-    options = xf86HandleInt10Options(xf86Screens[screen],entityIndex);

-

-    if (int10skip(options)) {

-	free(options);

-	return NULL;

-    }

-

-#if defined DoSubModules

-    if (loadedSubModule == INT10_NOT_LOADED) 

-	loadedSubModule = int10LinuxLoadSubModule(xf86Screens[screen]);

-

-    if (loadedSubModule == INT10_LOAD_FAILED)

-	return NULL;

-#endif

-

-    if ((!vidMem) || (!sysMem)) {

-	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {

-	    if (!sysMem) {

-		DebugF("Mapping sys bios area\n");

-		if ((sysMem = mmap((void *)(SYS_BIOS), BIOS_SIZE,

-				   PROT_READ | PROT_EXEC,

-				   MAP_SHARED | MAP_FIXED, fd, SYS_BIOS))

-		    == MAP_FAILED) {

-		    xf86DrvMsg(screen, X_ERROR, "Cannot map SYS BIOS\n");

-		    close(fd);

-		    goto error0;

-		}

-	    }

-	    if (!vidMem) {

-		DebugF("Mapping VRAM area\n");

-		if ((vidMem = mmap((void *)(V_RAM), VRAM_SIZE,

-				   PROT_READ | PROT_WRITE | PROT_EXEC,

-				   MAP_SHARED | MAP_FIXED, fd, V_RAM))

-		    == MAP_FAILED) {

-		    xf86DrvMsg(screen, X_ERROR, "Cannot map V_RAM\n");

-		    close(fd);

-		    goto error0;

-		}

-	    }

-	    close(fd);

-	} else {

-	    xf86DrvMsg(screen, X_ERROR, "Cannot open %s\n", DEV_MEM);

-	    goto error0;

-	}

-    }

-

-    pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec));

-    pInt->scrnIndex = screen;

-    pInt->entityIndex = entityIndex;

-    pInt->dev = xf86GetPciInfoForEntity(entityIndex);

-

-    if (!xf86Int10ExecSetup(pInt))

-	goto error0;

-    pInt->mem = &linuxMem;

-    pagesize = getpagesize();

-    pInt->private = (pointer)xnfcalloc(1, sizeof(linuxInt10Priv));

-    ((linuxInt10Priv*)pInt->private)->screen = screen;

-    ((linuxInt10Priv*)pInt->private)->alloc =

-	(pointer)xnfcalloc(1, ALLOC_ENTRIES(pagesize));

-

-    if (!xf86IsEntityPrimary(entityIndex)) {

-	DebugF("Mapping high memory area\n");

-	if ((high_mem = shmget(counter++, HIGH_MEM_SIZE,

-			       IPC_CREAT | SHM_R | SHM_W)) == -1) {

-	    if (errno == ENOSYS)

-		xf86DrvMsg(screen, X_ERROR, "shmget error\n Please reconfigure"

-			   " your kernel to include System V IPC support\n");

-	    else

-		xf86DrvMsg(screen, X_ERROR,

-			   "shmget(highmem) error: %s\n",strerror(errno));

-	    goto error1;

-	}

-    } else {

-	DebugF("Mapping Video BIOS\n");

-	videoBiosMapped = TRUE;

-	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {

-	    if ((vMem = mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS,

-			     PROT_READ | PROT_WRITE | PROT_EXEC,

-			     MAP_SHARED | MAP_FIXED, fd, V_BIOS))

-		== MAP_FAILED) {

-		xf86DrvMsg(screen, X_ERROR, "Cannot map V_BIOS\n");

-		close(fd);

-		goto error1;

-	    }

-	    close (fd);

-	} else

-	    goto error1;

-    }

-    ((linuxInt10Priv*)pInt->private)->highMem = high_mem;

-    

-    DebugF("Mapping 640kB area\n");

-    if ((low_mem = shmget(counter++, V_RAM,

-			  IPC_CREAT | SHM_R | SHM_W)) == -1) {

-	xf86DrvMsg(screen, X_ERROR,

-		   "shmget(lowmem) error: %s\n",strerror(errno));

-	goto error2;

-    }

-

-    ((linuxInt10Priv*)pInt->private)->lowMem = low_mem;

-    base = shmat(low_mem, 0, 0);

-    if (base == SHMERRORPTR) {

-	xf86DrvMsg(screen, X_ERROR,

-		   "shmat(low_mem) error: %s\n",strerror(errno));

-	goto error3;

-    }

-    ((linuxInt10Priv *)pInt->private)->base = base;

-    if (high_mem > -1) {

-	base_high = shmat(high_mem, 0, 0);

-	if (base_high == SHMERRORPTR) {

-	    xf86DrvMsg(screen, X_ERROR,

-		       "shmat(high_mem) error: %s\n",strerror(errno));

-	    goto error3;

-	}

-	((linuxInt10Priv*)pInt->private)->base_high = base_high;

-    } else

-	((linuxInt10Priv*)pInt->private)->base_high = NULL;

-

-    if (!MapCurrentInt10(pInt))

-	goto error3;

-    

-    Int10Current = pInt;

-

-    DebugF("Mapping int area\n");

-    if (xf86ReadBIOS(0, 0, (unsigned char *)0, LOW_PAGE_SIZE) < 0) {

-	xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n");

-	goto error3;

-    }

-    DebugF("done\n");

-    /*

-     * Read in everything between V_BIOS and SYS_BIOS as some system BIOSes

-     * have executable code there.  Note that xf86ReadBIOS() can only bring in

-     * 64K bytes at a time.

-     */

-    if (!videoBiosMapped) {

-	memset((pointer)V_BIOS, 0, SYS_BIOS - V_BIOS);

-	DebugF("Reading BIOS\n");

-	for (cs = V_BIOS;  cs < SYS_BIOS;  cs += V_BIOS_SIZE)

-	    if (xf86ReadBIOS(cs, 0, (pointer)cs, V_BIOS_SIZE) < V_BIOS_SIZE)

-		xf86DrvMsg(screen, X_WARNING,

-			   "Unable to retrieve all of segment 0x%06lX.\n",

-			   (long)cs);

-	DebugF("done\n");

-    }

-

-    if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) {

-	if (!xf86int10GetBiosSegment(pInt, NULL))

-	    goto error3;

-

-	set_return_trap(pInt);

-#ifdef _PC	

-	pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH);

-	if (! (pInt->Flags & SET_BIOS_SCRATCH))

-	    pInt->Flags &= ~RESTORE_BIOS_SCRATCH;

-  	xf86Int10SaveRestoreBIOSVars(pInt, TRUE);

-#endif

-    } else {

-	const BusType location_type = xf86int10GetBiosLocationType(pInt);

-

-	switch (location_type) {

-	case BUS_PCI: {

-	    int err;

-	    struct pci_device *rom_device =

-		xf86GetPciInfoForEntity(pInt->entityIndex);

-

-#if HAVE_PCI_DEVICE_ENABLE

-	    pci_device_enable(rom_device);

-#endif

-

-	    err = pci_device_read_rom(rom_device, (unsigned char *)(V_BIOS));

-	    if (err) {

-		xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (%s)\n",

-			   strerror(err));

-		goto error3;

-	    }

-

-	    pInt->BIOSseg = V_BIOS >> 4;

-	    break;

-	}

-	default:

-	    goto error3;

-	}

-

-	pInt->num = 0xe6;

-	reset_int_vect(pInt);

-	set_return_trap(pInt);

-	LockLegacyVGA(pInt, &vga);

-	xf86ExecX86int10(pInt);

-	UnlockLegacyVGA(pInt, &vga);

-    }

-#ifdef DEBUG

-    dprint(0xc0000, 0x20);

-#endif

-

-    free(options);

-    return pInt;

-

-error3:

-    if (base_high)

-	shmdt(base_high);

-    shmdt(base);

-    shmdt(0);

-    if (base_high)

-	shmdt((char*)HIGH_MEM);

-    shmctl(low_mem, IPC_RMID, NULL);

-    Int10Current = NULL;

-error2:

-    if (high_mem > -1)

-	shmctl(high_mem, IPC_RMID,NULL);

-error1:

-    if (vMem)

-	munmap(vMem, SYS_BIOS - V_BIOS);

-    free(((linuxInt10Priv*)pInt->private)->alloc);

-    free(pInt->private);

-error0:

-    free(options);

-    free(pInt);

-    return NULL;

-}

-

-Bool

-MapCurrentInt10(xf86Int10InfoPtr pInt)

-{

-    pointer addr;

-    int fd = -1;

-    

-    if (Int10Current) {

-	shmdt(0);

-	if (((linuxInt10Priv*)Int10Current->private)->highMem >= 0)

-	    shmdt((char*)HIGH_MEM);

-	else

-	    munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS));

-    }

-    addr = shmat(((linuxInt10Priv*)pInt->private)->lowMem, (char*)1, SHM_RND);

-    if (addr == SHMERRORPTR) {

-	xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot shmat() low memory\n");

-	xf86DrvMsg(pInt->scrnIndex, X_ERROR,

-		   "shmat(low_mem) error: %s\n",strerror(errno));

-	return FALSE;

-    }

-    if (mprotect((void*)0, V_RAM, PROT_READ|PROT_WRITE|PROT_EXEC) != 0)

-        xf86DrvMsg(pInt->scrnIndex, X_ERROR,

-		   "Cannot set EXEC bit on low memory: %s\n", strerror(errno));

-

-    if (((linuxInt10Priv*)pInt->private)->highMem >= 0) {

-	addr = shmat(((linuxInt10Priv*)pInt->private)->highMem,

-		     (char*)HIGH_MEM, 0);

-	if (addr == SHMERRORPTR) {

-	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,

-		       "Cannot shmat() high memory\n");

-	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,

-		       "shmget error: %s\n",strerror(errno));

-	    return FALSE;

-	}

-	if (mprotect((void*)HIGH_MEM, HIGH_MEM_SIZE,

-		     PROT_READ|PROT_WRITE|PROT_EXEC) != 0)

-	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,

-		       "Cannot set EXEC bit on high memory: %s\n",

-		       strerror(errno));

-    } else {

-	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {

-	    if (mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS,

-			     PROT_READ | PROT_WRITE | PROT_EXEC,

-			     MAP_SHARED | MAP_FIXED, fd, V_BIOS)

-		== MAP_FAILED) {

-		xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot map V_BIOS\n");

-		close (fd);

-		return FALSE;

-	    }

-	} else {

-	    xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot open %s\n",DEV_MEM);

-	    return FALSE;

-	}

-	close (fd);

-    }

-    

-    return TRUE;

-}

-

-void

-xf86FreeInt10(xf86Int10InfoPtr pInt)

-{

-    if (!pInt)

-	return;

-

-#ifdef _PC

-    xf86Int10SaveRestoreBIOSVars(pInt, FALSE); 

-#endif

-    if (Int10Current == pInt) {

-	shmdt(0);

-	if (((linuxInt10Priv*)pInt->private)->highMem >= 0)

-	    shmdt((char*)HIGH_MEM);

-	else

-	    munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS));

-	Int10Current = NULL;

-    }

-    

-    if (((linuxInt10Priv*)pInt->private)->base_high)

-	shmdt(((linuxInt10Priv*)pInt->private)->base_high);

-    shmdt(((linuxInt10Priv*)pInt->private)->base);

-    shmctl(((linuxInt10Priv*)pInt->private)->lowMem, IPC_RMID, NULL);

-    if (((linuxInt10Priv*)pInt->private)->highMem >= 0)

-	shmctl(((linuxInt10Priv*)pInt->private)->highMem, IPC_RMID, NULL);

-    free(((linuxInt10Priv*)pInt->private)->alloc);

-    free(pInt->private);

-    free(pInt);

-}

-

-void *

-xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off)

-{

-    int pagesize = getpagesize();

-    int num_pages = ALLOC_ENTRIES(pagesize);

-    int i, j;

-

-    for (i = 0; i < (num_pages - num); i++) {

-	if (((linuxInt10Priv*)pInt->private)->alloc[i] == 0) {

-	    for (j = i; j < (num + i); j++)

-		if ((((linuxInt10Priv*)pInt->private)->alloc[j] != 0))

-		    break;

-	    if (j == (num + i))

-		break;

-	    else

-		i = i + num;

-	}

-    }

-    if (i == (num_pages - num))

-	return NULL;

-

-    for (j = i; j < (i + num); j++)

-	((linuxInt10Priv*)pInt->private)->alloc[j] = 1;

-

-    *off = (i + 1) * pagesize;

-

-    return ((linuxInt10Priv*)pInt->private)->base + ((i + 1) * pagesize);

-}

-

-void

-xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num)

-{

-    int pagesize = getpagesize();

-    int first = (((unsigned long)pbase

-		 - (unsigned long)((linuxInt10Priv*)pInt->private)->base)

-	/ pagesize) - 1;

-    int i;

-

-    for (i = first; i < (first + num); i++)

-	((linuxInt10Priv*)pInt->private)->alloc[i] = 0;

-}

-

-static CARD8

-read_b(xf86Int10InfoPtr pInt, int addr)

-{

-    return *((CARD8 *)(memType)addr);

-}

-

-static CARD16

-read_w(xf86Int10InfoPtr pInt, int addr)

-{

-    return *((CARD16 *)(memType)addr);

-}

-

-static CARD32

-read_l(xf86Int10InfoPtr pInt, int addr)

-{

-    return *((CARD32 *)(memType)addr);

-}

-

-static void

-write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val)

-{

-    *((CARD8 *)(memType)addr) = val;

-}

-

-static void

-write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val)

-{

-    *((CARD16 *)(memType)addr) = val;

-}

-

-static

-void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val)

-{

-    *((CARD32 *)(memType) addr) = val;

-}

-

-pointer

-xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr)

-{

-    if (addr < V_RAM)

-	return ((linuxInt10Priv*)pInt->private)->base + addr;

-    else if (addr < V_BIOS)

-	return (pointer)(memType)addr;

-    else if (addr < SYS_BIOS) {

-	if (((linuxInt10Priv*)pInt->private)->base_high)

-	    return (pointer)(((linuxInt10Priv*)pInt->private)->base_high

-			     - V_BIOS + addr);

-	else

-	    return (pointer) (memType)addr;

-    } else

-	return (pointer) (memType)addr;

-}

-

-#if defined DoSubModules

-

-static Bool

-vm86_tst(void)

-{

-    int __res;

-

-#ifdef __PIC__

-    /* When compiling with -fPIC, we can't use asm constraint "b" because

-       %ebx is already taken by gcc. */

-    __asm__ __volatile__("pushl %%ebx\n\t"

-			 "movl %2,%%ebx\n\t"

-			 "movl %1,%%eax\n\t"

-			 "int $0x80\n\t"

-			 "popl %%ebx"

-			 :"=a" (__res)

-			 :"n" ((int)113), "r" (NULL));

-#else

-    __asm__ __volatile__("int $0x80\n\t"

-			 :"=a" (__res):"a" ((int)113),

-			 "b" ((struct vm86_struct *)NULL));

-#endif

-

-    if (__res < 0 && __res == -ENOSYS) 

-	return FALSE;

-

-    return TRUE;

-}

-

-static Int10LinuxSubModuleState

-int10LinuxLoadSubModule(ScrnInfoPtr pScrn)

-{

-    if (vm86_tst()) {

-	if (xf86LoadSubModule(pScrn,"vm86"))

-	    return INT10_LOADED_VM86;

-    } 

-    if (xf86LoadSubModule(pScrn,"x86emu"))

-	return INT10_LOADED_X86EMU;

-

-    return INT10_LOAD_FAILED;

-}

-

-#endif /* DoSubModules */

+/*
+ * linux specific part of the int10 module
+ * Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2008 Egbert Eich
+ */
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86Pci.h"
+#include "compiler.h"
+#define _INT10_PRIVATE
+#include "xf86int10.h"
+#ifdef __sparc__
+#define DEV_MEM "/dev/fb"
+#else
+#define DEV_MEM "/dev/mem"
+#endif
+#define ALLOC_ENTRIES(x) ((V_RAM / x) - 1)
+#define SHMERRORPTR (pointer)(-1)
+
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <unistd.h>
+#include <string.h>
+
+static int counter = 0;
+static unsigned long int10Generation = 0;
+
+static CARD8 read_b(xf86Int10InfoPtr pInt, int addr);
+static CARD16 read_w(xf86Int10InfoPtr pInt, int addr);
+static CARD32 read_l(xf86Int10InfoPtr pInt, int addr);
+static void write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val);
+static void write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val);
+static void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val);
+
+int10MemRec linuxMem = {
+    read_b,
+    read_w,
+    read_l,
+    write_b,
+    write_w,
+    write_l
+};
+
+typedef struct {
+    int lowMem;
+    int highMem;
+    char* base;
+    char* base_high;
+    int screen;
+    char* alloc;
+} linuxInt10Priv;
+
+#if defined DoSubModules
+
+typedef enum {
+    INT10_NOT_LOADED,
+    INT10_LOADED_VM86,
+    INT10_LOADED_X86EMU,
+    INT10_LOAD_FAILED
+} Int10LinuxSubModuleState;
+
+static Int10LinuxSubModuleState loadedSubModule = INT10_NOT_LOADED;
+
+static Int10LinuxSubModuleState int10LinuxLoadSubModule(ScrnInfoPtr pScrn);
+
+#endif /* DoSubModules */
+
+xf86Int10InfoPtr
+xf86ExtendedInitInt10(int entityIndex, int Flags)
+{
+    xf86Int10InfoPtr pInt = NULL;
+    int screen;
+    int fd;
+    static void* vidMem = NULL;
+    static void* sysMem = NULL;
+    void* vMem = NULL;
+    void *options = NULL;
+    int low_mem;
+    int high_mem = -1;
+    char *base = SHMERRORPTR;
+    char *base_high = SHMERRORPTR;
+    int pagesize; 
+    memType cs;
+    legacyVGARec vga;
+    Bool videoBiosMapped = FALSE;
+    
+    if (int10Generation != serverGeneration) {
+	counter = 0;
+	int10Generation = serverGeneration;
+    }
+
+    screen = (xf86FindScreenForEntity(entityIndex))->scrnIndex;
+
+    options = xf86HandleInt10Options(xf86Screens[screen],entityIndex);
+
+    if (int10skip(options)) {
+	free(options);
+	return NULL;
+    }
+
+#if defined DoSubModules
+    if (loadedSubModule == INT10_NOT_LOADED) 
+	loadedSubModule = int10LinuxLoadSubModule(xf86Screens[screen]);
+
+    if (loadedSubModule == INT10_LOAD_FAILED)
+	return NULL;
+#endif
+
+    if ((!vidMem) || (!sysMem)) {
+	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {
+	    if (!sysMem) {
+		DebugF("Mapping sys bios area\n");
+		if ((sysMem = mmap((void *)(SYS_BIOS), BIOS_SIZE,
+				   PROT_READ | PROT_EXEC,
+				   MAP_SHARED | MAP_FIXED, fd, SYS_BIOS))
+		    == MAP_FAILED) {
+		    xf86DrvMsg(screen, X_ERROR, "Cannot map SYS BIOS\n");
+		    close(fd);
+		    goto error0;
+		}
+	    }
+	    if (!vidMem) {
+		DebugF("Mapping VRAM area\n");
+		if ((vidMem = mmap((void *)(V_RAM), VRAM_SIZE,
+				   PROT_READ | PROT_WRITE | PROT_EXEC,
+				   MAP_SHARED | MAP_FIXED, fd, V_RAM))
+		    == MAP_FAILED) {
+		    xf86DrvMsg(screen, X_ERROR, "Cannot map V_RAM\n");
+		    close(fd);
+		    goto error0;
+		}
+	    }
+	    close(fd);
+	} else {
+	    xf86DrvMsg(screen, X_ERROR, "Cannot open %s\n", DEV_MEM);
+	    goto error0;
+	}
+    }
+
+    pInt = (xf86Int10InfoPtr)xnfcalloc(1, sizeof(xf86Int10InfoRec));
+    pInt->scrnIndex = screen;
+    pInt->entityIndex = entityIndex;
+    pInt->dev = xf86GetPciInfoForEntity(entityIndex);
+
+    if (!xf86Int10ExecSetup(pInt))
+	goto error0;
+    pInt->mem = &linuxMem;
+    pagesize = getpagesize();
+    pInt->private = (pointer)xnfcalloc(1, sizeof(linuxInt10Priv));
+    ((linuxInt10Priv*)pInt->private)->screen = screen;
+    ((linuxInt10Priv*)pInt->private)->alloc =
+	(pointer)xnfcalloc(1, ALLOC_ENTRIES(pagesize));
+
+    if (!xf86IsEntityPrimary(entityIndex)) {
+	DebugF("Mapping high memory area\n");
+	if ((high_mem = shmget(counter++, HIGH_MEM_SIZE,
+			       IPC_CREAT | SHM_R | SHM_W)) == -1) {
+	    if (errno == ENOSYS)
+		xf86DrvMsg(screen, X_ERROR, "shmget error\n Please reconfigure"
+			   " your kernel to include System V IPC support\n");
+	    else
+		xf86DrvMsg(screen, X_ERROR,
+			   "shmget(highmem) error: %s\n",strerror(errno));
+	    goto error1;
+	}
+    } else {
+	DebugF("Mapping Video BIOS\n");
+	videoBiosMapped = TRUE;
+	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {
+	    if ((vMem = mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS,
+			     PROT_READ | PROT_WRITE | PROT_EXEC,
+			     MAP_SHARED | MAP_FIXED, fd, V_BIOS))
+		== MAP_FAILED) {
+		xf86DrvMsg(screen, X_ERROR, "Cannot map V_BIOS\n");
+		close(fd);
+		goto error1;
+	    }
+	    close (fd);
+	} else
+	    goto error1;
+    }
+    ((linuxInt10Priv*)pInt->private)->highMem = high_mem;
+    
+    DebugF("Mapping 640kB area\n");
+    if ((low_mem = shmget(counter++, V_RAM,
+			  IPC_CREAT | SHM_R | SHM_W)) == -1) {
+	xf86DrvMsg(screen, X_ERROR,
+		   "shmget(lowmem) error: %s\n",strerror(errno));
+	goto error2;
+    }
+
+    ((linuxInt10Priv*)pInt->private)->lowMem = low_mem;
+    base = shmat(low_mem, 0, 0);
+    if (base == SHMERRORPTR) {
+	xf86DrvMsg(screen, X_ERROR,
+		   "shmat(low_mem) error: %s\n",strerror(errno));
+	goto error3;
+    }
+    ((linuxInt10Priv *)pInt->private)->base = base;
+    if (high_mem > -1) {
+	base_high = shmat(high_mem, 0, 0);
+	if (base_high == SHMERRORPTR) {
+	    xf86DrvMsg(screen, X_ERROR,
+		       "shmat(high_mem) error: %s\n",strerror(errno));
+	    goto error3;
+	}
+	((linuxInt10Priv*)pInt->private)->base_high = base_high;
+    } else
+	((linuxInt10Priv*)pInt->private)->base_high = NULL;
+
+    if (!MapCurrentInt10(pInt))
+	goto error3;
+    
+    Int10Current = pInt;
+
+    DebugF("Mapping int area\n");
+    if (xf86ReadBIOS(0, 0, (unsigned char *)0, LOW_PAGE_SIZE) < 0) {
+	xf86DrvMsg(screen, X_ERROR, "Cannot read int vect\n");
+	goto error3;
+    }
+    DebugF("done\n");
+    /*
+     * Read in everything between V_BIOS and SYS_BIOS as some system BIOSes
+     * have executable code there.  Note that xf86ReadBIOS() can only bring in
+     * 64K bytes at a time.
+     */
+    if (!videoBiosMapped) {
+	memset((pointer)V_BIOS, 0, SYS_BIOS - V_BIOS);
+	DebugF("Reading BIOS\n");
+	for (cs = V_BIOS;  cs < SYS_BIOS;  cs += V_BIOS_SIZE)
+	    if (xf86ReadBIOS(cs, 0, (pointer)cs, V_BIOS_SIZE) < V_BIOS_SIZE)
+		xf86DrvMsg(screen, X_WARNING,
+			   "Unable to retrieve all of segment 0x%06lX.\n",
+			   (long)cs);
+	DebugF("done\n");
+    }
+
+    if (xf86IsEntityPrimary(entityIndex) && !(initPrimary(options))) {
+	if (!xf86int10GetBiosSegment(pInt, NULL))
+	    goto error3;
+
+	set_return_trap(pInt);
+#ifdef _PC	
+	pInt->Flags = Flags & (SET_BIOS_SCRATCH | RESTORE_BIOS_SCRATCH);
+	if (! (pInt->Flags & SET_BIOS_SCRATCH))
+	    pInt->Flags &= ~RESTORE_BIOS_SCRATCH;
+  	xf86Int10SaveRestoreBIOSVars(pInt, TRUE);
+#endif
+    } else {
+	const BusType location_type = xf86int10GetBiosLocationType(pInt);
+
+	switch (location_type) {
+	case BUS_PCI: {
+	    int err;
+	    struct pci_device *rom_device =
+		xf86GetPciInfoForEntity(pInt->entityIndex);
+
+	    pci_device_enable(rom_device);
+	    err = pci_device_read_rom(rom_device, (unsigned char *)(V_BIOS));
+	    if (err) {
+		xf86DrvMsg(screen,X_ERROR,"Cannot read V_BIOS (%s)\n",
+			   strerror(err));
+		goto error3;
+	    }
+
+	    pInt->BIOSseg = V_BIOS >> 4;
+	    break;
+	}
+	default:
+	    goto error3;
+	}
+
+	pInt->num = 0xe6;
+	reset_int_vect(pInt);
+	set_return_trap(pInt);
+	LockLegacyVGA(pInt, &vga);
+	xf86ExecX86int10(pInt);
+	UnlockLegacyVGA(pInt, &vga);
+    }
+#ifdef DEBUG
+    dprint(0xc0000, 0x20);
+#endif
+
+    free(options);
+    return pInt;
+
+error3:
+    if (base_high)
+	shmdt(base_high);
+    shmdt(base);
+    shmdt(0);
+    if (base_high)
+	shmdt((char*)HIGH_MEM);
+    shmctl(low_mem, IPC_RMID, NULL);
+    Int10Current = NULL;
+error2:
+    if (high_mem > -1)
+	shmctl(high_mem, IPC_RMID,NULL);
+error1:
+    if (vMem)
+	munmap(vMem, SYS_BIOS - V_BIOS);
+    free(((linuxInt10Priv*)pInt->private)->alloc);
+    free(pInt->private);
+error0:
+    free(options);
+    free(pInt);
+    return NULL;
+}
+
+Bool
+MapCurrentInt10(xf86Int10InfoPtr pInt)
+{
+    pointer addr;
+    int fd = -1;
+    
+    if (Int10Current) {
+	shmdt(0);
+	if (((linuxInt10Priv*)Int10Current->private)->highMem >= 0)
+	    shmdt((char*)HIGH_MEM);
+	else
+	    munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS));
+    }
+    addr = shmat(((linuxInt10Priv*)pInt->private)->lowMem, (char*)1, SHM_RND);
+    if (addr == SHMERRORPTR) {
+	xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot shmat() low memory\n");
+	xf86DrvMsg(pInt->scrnIndex, X_ERROR,
+		   "shmat(low_mem) error: %s\n",strerror(errno));
+	return FALSE;
+    }
+    if (mprotect((void*)0, V_RAM, PROT_READ|PROT_WRITE|PROT_EXEC) != 0)
+        xf86DrvMsg(pInt->scrnIndex, X_ERROR,
+		   "Cannot set EXEC bit on low memory: %s\n", strerror(errno));
+
+    if (((linuxInt10Priv*)pInt->private)->highMem >= 0) {
+	addr = shmat(((linuxInt10Priv*)pInt->private)->highMem,
+		     (char*)HIGH_MEM, 0);
+	if (addr == SHMERRORPTR) {
+	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,
+		       "Cannot shmat() high memory\n");
+	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,
+		       "shmget error: %s\n",strerror(errno));
+	    return FALSE;
+	}
+	if (mprotect((void*)HIGH_MEM, HIGH_MEM_SIZE,
+		     PROT_READ|PROT_WRITE|PROT_EXEC) != 0)
+	    xf86DrvMsg(pInt->scrnIndex, X_ERROR,
+		       "Cannot set EXEC bit on high memory: %s\n",
+		       strerror(errno));
+    } else {
+	if ((fd = open(DEV_MEM, O_RDWR, 0)) >= 0) {
+	    if (mmap((void *)(V_BIOS), SYS_BIOS - V_BIOS,
+			     PROT_READ | PROT_WRITE | PROT_EXEC,
+			     MAP_SHARED | MAP_FIXED, fd, V_BIOS)
+		== MAP_FAILED) {
+		xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot map V_BIOS\n");
+		close (fd);
+		return FALSE;
+	    }
+	} else {
+	    xf86DrvMsg(pInt->scrnIndex, X_ERROR, "Cannot open %s\n",DEV_MEM);
+	    return FALSE;
+	}
+	close (fd);
+    }
+    
+    return TRUE;
+}
+
+void
+xf86FreeInt10(xf86Int10InfoPtr pInt)
+{
+    if (!pInt)
+	return;
+
+#ifdef _PC
+    xf86Int10SaveRestoreBIOSVars(pInt, FALSE); 
+#endif
+    if (Int10Current == pInt) {
+	shmdt(0);
+	if (((linuxInt10Priv*)pInt->private)->highMem >= 0)
+	    shmdt((char*)HIGH_MEM);
+	else
+	    munmap((pointer)V_BIOS, (SYS_BIOS - V_BIOS));
+	Int10Current = NULL;
+    }
+    
+    if (((linuxInt10Priv*)pInt->private)->base_high)
+	shmdt(((linuxInt10Priv*)pInt->private)->base_high);
+    shmdt(((linuxInt10Priv*)pInt->private)->base);
+    shmctl(((linuxInt10Priv*)pInt->private)->lowMem, IPC_RMID, NULL);
+    if (((linuxInt10Priv*)pInt->private)->highMem >= 0)
+	shmctl(((linuxInt10Priv*)pInt->private)->highMem, IPC_RMID, NULL);
+    free(((linuxInt10Priv*)pInt->private)->alloc);
+    free(pInt->private);
+    free(pInt);
+}
+
+void *
+xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off)
+{
+    int pagesize = getpagesize();
+    int num_pages = ALLOC_ENTRIES(pagesize);
+    int i, j;
+
+    for (i = 0; i < (num_pages - num); i++) {
+	if (((linuxInt10Priv*)pInt->private)->alloc[i] == 0) {
+	    for (j = i; j < (num + i); j++)
+		if ((((linuxInt10Priv*)pInt->private)->alloc[j] != 0))
+		    break;
+	    if (j == (num + i))
+		break;
+	    else
+		i = i + num;
+	}
+    }
+    if (i == (num_pages - num))
+	return NULL;
+
+    for (j = i; j < (i + num); j++)
+	((linuxInt10Priv*)pInt->private)->alloc[j] = 1;
+
+    *off = (i + 1) * pagesize;
+
+    return ((linuxInt10Priv*)pInt->private)->base + ((i + 1) * pagesize);
+}
+
+void
+xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num)
+{
+    int pagesize = getpagesize();
+    int first = (((unsigned long)pbase
+		 - (unsigned long)((linuxInt10Priv*)pInt->private)->base)
+	/ pagesize) - 1;
+    int i;
+
+    for (i = first; i < (first + num); i++)
+	((linuxInt10Priv*)pInt->private)->alloc[i] = 0;
+}
+
+static CARD8
+read_b(xf86Int10InfoPtr pInt, int addr)
+{
+    return *((CARD8 *)(memType)addr);
+}
+
+static CARD16
+read_w(xf86Int10InfoPtr pInt, int addr)
+{
+    return *((CARD16 *)(memType)addr);
+}
+
+static CARD32
+read_l(xf86Int10InfoPtr pInt, int addr)
+{
+    return *((CARD32 *)(memType)addr);
+}
+
+static void
+write_b(xf86Int10InfoPtr pInt, int addr, CARD8 val)
+{
+    *((CARD8 *)(memType)addr) = val;
+}
+
+static void
+write_w(xf86Int10InfoPtr pInt, int addr, CARD16 val)
+{
+    *((CARD16 *)(memType)addr) = val;
+}
+
+static
+void write_l(xf86Int10InfoPtr pInt, int addr, CARD32 val)
+{
+    *((CARD32 *)(memType) addr) = val;
+}
+
+pointer
+xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr)
+{
+    if (addr < V_RAM)
+	return ((linuxInt10Priv*)pInt->private)->base + addr;
+    else if (addr < V_BIOS)
+	return (pointer)(memType)addr;
+    else if (addr < SYS_BIOS) {
+	if (((linuxInt10Priv*)pInt->private)->base_high)
+	    return (pointer)(((linuxInt10Priv*)pInt->private)->base_high
+			     - V_BIOS + addr);
+	else
+	    return (pointer) (memType)addr;
+    } else
+	return (pointer) (memType)addr;
+}
+
+#if defined DoSubModules
+
+static Bool
+vm86_tst(void)
+{
+    int __res;
+
+#ifdef __PIC__
+    /* When compiling with -fPIC, we can't use asm constraint "b" because
+       %ebx is already taken by gcc. */
+    __asm__ __volatile__("pushl %%ebx\n\t"
+			 "movl %2,%%ebx\n\t"
+			 "movl %1,%%eax\n\t"
+			 "int $0x80\n\t"
+			 "popl %%ebx"
+			 :"=a" (__res)
+			 :"n" ((int)113), "r" (NULL));
+#else
+    __asm__ __volatile__("int $0x80\n\t"
+			 :"=a" (__res):"a" ((int)113),
+			 "b" ((struct vm86_struct *)NULL));
+#endif
+
+    if (__res < 0 && __res == -ENOSYS) 
+	return FALSE;
+
+    return TRUE;
+}
+
+static Int10LinuxSubModuleState
+int10LinuxLoadSubModule(ScrnInfoPtr pScrn)
+{
+    if (vm86_tst()) {
+	if (xf86LoadSubModule(pScrn,"vm86"))
+	    return INT10_LOADED_VM86;
+    } 
+    if (xf86LoadSubModule(pScrn,"x86emu"))
+	return INT10_LOADED_X86EMU;
+
+    return INT10_LOAD_FAILED;
+}
+
+#endif /* DoSubModules */