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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/linux')
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/int10/linux.c1088
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/lnx_agp.c748
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/lnx_video.c1756
3 files changed, 1796 insertions, 1796 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 0cf3507c3..e3c8a984d 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 +1,544 @@
-/*
- * 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)) {
- xfree(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
-
- xfree(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);
- xfree(((linuxInt10Priv*)pInt->private)->alloc);
- xfree(pInt->private);
-error0:
- xfree(options);
- xfree(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);
- xfree(((linuxInt10Priv*)pInt->private)->alloc);
- xfree(pInt->private);
- xfree(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);
+
+#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 */
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c b/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c
index 61437406d..3fa897366 100644
--- a/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_agp.c
@@ -1,374 +1,374 @@
-/*
- * Abstraction of the AGP GART interface.
- *
- * This version is for Linux and Free/Open/NetBSD.
- *
- * Copyright © 2000 VA Linux Systems, Inc.
- * Copyright © 2001 The XFree86 Project, Inc.
- */
-
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "xf86OSpriv.h"
-
-#if defined(linux)
-#include <asm/ioctl.h>
-#include <linux/agpgart.h>
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
-#include <sys/ioctl.h>
-#include <sys/agpio.h>
-#endif
-
-#ifndef AGP_DEVICE
-#define AGP_DEVICE "/dev/agpgart"
-#endif
-/* AGP page size is independent of the host page size. */
-#ifndef AGP_PAGE_SIZE
-#define AGP_PAGE_SIZE 4096
-#endif
-#define AGPGART_MAJOR_VERSION 0
-#define AGPGART_MINOR_VERSION 99
-
-static int gartFd = -1;
-static int acquiredScreen = -1;
-static Bool initDone = FALSE;
-/*
- * Close /dev/agpgart. This frees all associated memory allocated during
- * this server generation.
- */
-Bool
-xf86GARTCloseScreen(int screenNum)
-{
- if(gartFd != -1) {
- close(gartFd);
- acquiredScreen = -1;
- gartFd = -1;
- initDone = FALSE;
- }
- return TRUE;
-}
-
-/*
- * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called.
- */
-static Bool
-GARTInit(int screenNum)
-{
- struct _agp_info agpinf;
-
- if (initDone)
- return (gartFd != -1);
-
- initDone = TRUE;
-
- if (gartFd == -1)
- gartFd = open(AGP_DEVICE, O_RDWR, 0);
- else
- return FALSE;
-
- if (gartFd == -1) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: Unable to open " AGP_DEVICE " (%s)\n",
- strerror(errno));
- return FALSE;
- }
-
- xf86AcquireGART(-1);
- /* Check the kernel driver version. */
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno));
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
- xf86ReleaseGART(-1);
-
-#if defined(linux)
- /* Per Dave Jones, every effort will be made to keep the
- * agpgart interface backwards compatible, so allow all
- * future versions.
- */
- if (
-#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
- agpinf.version.major < AGPGART_MAJOR_VERSION ||
-#endif
- (agpinf.version.major == AGPGART_MAJOR_VERSION &&
- agpinf.version.minor < AGPGART_MINOR_VERSION)) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: Kernel agpgart driver version is not current"
- " (%d.%d vs %d.%d)\n",
- agpinf.version.major, agpinf.version.minor,
- AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
-#endif
-
- return TRUE;
-}
-
-Bool
-xf86AgpGARTSupported(void)
-{
- return GARTInit(-1);
-}
-
-AgpInfoPtr
-xf86GetAGPInfo(int screenNum)
-{
- struct _agp_info agpinf;
- AgpInfoPtr info;
-
- if (!GARTInit(screenNum))
- return NULL;
-
-
- if ((info = xcalloc(sizeof(AgpInfo), 1)) == NULL) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86GetAGPInfo: Failed to allocate AgpInfo\n");
- return NULL;
- }
-
- memset((char*)&agpinf, 0, sizeof(agpinf));
-
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
- strerror(errno));
- return NULL;
- }
-
- info->bridgeId = agpinf.bridge_id;
- info->agpMode = agpinf.agp_mode;
- info->base = agpinf.aper_base;
- info->size = agpinf.aper_size;
- info->totalPages = agpinf.pg_total;
- info->systemPages = agpinf.pg_system;
- info->usedPages = agpinf.pg_used;
-
- xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used);
-
- return info;
-}
-
-/*
- * XXX If multiple screens can acquire the GART, should we have a reference
- * count instead of using acquiredScreen?
- */
-
-Bool
-xf86AcquireGART(int screenNum)
-{
- if (screenNum != -1 && !GARTInit(screenNum))
- return FALSE;
-
- if (screenNum == -1 || acquiredScreen != screenNum) {
- if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
- xf86DrvMsg(screenNum, X_WARNING,
- "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = screenNum;
- }
- return TRUE;
-}
-
-Bool
-xf86ReleaseGART(int screenNum)
-{
- if (screenNum != -1 && !GARTInit(screenNum))
- return FALSE;
-
- if (acquiredScreen == screenNum) {
- /*
- * The FreeBSD agp driver removes allocations on release.
- * The Linux driver doesn't. xf86ReleaseGART() is expected
- * to give up access to the GART, but not to remove any
- * allocations.
- */
-#if !defined(linux)
- if (screenNum == -1)
-#endif
- {
- if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
- xf86DrvMsg(screenNum, X_WARNING,
- "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = -1;
- }
- return TRUE;
- }
- return FALSE;
-}
-
-int
-xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
- unsigned long *physical)
-{
- struct _agp_allocate alloc;
- int pages;
-
- /*
- * Allocates "size" bytes of GART memory (rounds up to the next
- * page multiple) or type "type". A handle (key) for the allocated
- * memory is returned. On error, the return value is -1.
- */
-
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return -1;
-
- pages = (size / AGP_PAGE_SIZE);
- if (size % AGP_PAGE_SIZE != 0)
- pages++;
-
- /* XXX check for pages == 0? */
-
- alloc.pg_count = pages;
- alloc.type = type;
-
- if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
- "allocation of %d pages failed\n\t(%s)\n", pages,
- strerror(errno));
- return -1;
- }
-
- if (physical)
- *physical = alloc.physical;
-
- return alloc.key;
-}
-
-Bool
-xf86DeallocateGARTMemory(int screenNum, int key)
-{
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
-
-#ifdef __linux__
- if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) {
-#else
- if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) {
-#endif
- xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: "
- "deallocation gart memory with key %d failed\n\t(%s)\n",
- key, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
-/* Bind GART memory with "key" at "offset" */
-Bool
-xf86BindGARTMemory(int screenNum, int key, unsigned long offset)
-{
- struct _agp_bind bind;
- int pageOffset;
-
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86BindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
-
- if (offset % AGP_PAGE_SIZE != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
- "offset (0x%lx) is not page-aligned (%d)\n",
- offset, AGP_PAGE_SIZE);
- return FALSE;
- }
- pageOffset = offset / AGP_PAGE_SIZE;
-
- xf86DrvMsgVerb(screenNum, X_INFO, 3,
- "xf86BindGARTMemory: bind key %d at 0x%08lx "
- "(pgoffset %d)\n", key, offset, pageOffset);
-
- bind.pg_start = pageOffset;
- bind.key = key;
-
- if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
- "binding of gart memory with key %d\n"
- "\tat offset 0x%lx failed (%s)\n",
- key, offset, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/* Unbind GART memory with "key" */
-Bool
-xf86UnbindGARTMemory(int screenNum, int key)
-{
- struct _agp_unbind unbind;
-
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
-
- unbind.priority = 0;
- unbind.key = key;
-
- if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
- "unbinding of gart memory with key %d "
- "failed (%s)\n", key, strerror(errno));
- return FALSE;
- }
-
- xf86DrvMsgVerb(screenNum, X_INFO, 3,
- "xf86UnbindGARTMemory: unbind key %d\n", key);
-
- return TRUE;
-}
-
-
-/* XXX Interface may change. */
-Bool
-xf86EnableAGP(int screenNum, CARD32 mode)
-{
- agp_setup setup;
-
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
-
- setup.agp_mode = mode;
- if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
- "AGPIOC_SETUP with mode %ld failed (%s)\n",
- (unsigned long)mode, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
-}
-
+/*
+ * Abstraction of the AGP GART interface.
+ *
+ * This version is for Linux and Free/Open/NetBSD.
+ *
+ * Copyright © 2000 VA Linux Systems, Inc.
+ * Copyright © 2001 The XFree86 Project, Inc.
+ */
+
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+
+#if defined(linux)
+#include <asm/ioctl.h>
+#include <linux/agpgart.h>
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
+#include <sys/ioctl.h>
+#include <sys/agpio.h>
+#endif
+
+#ifndef AGP_DEVICE
+#define AGP_DEVICE "/dev/agpgart"
+#endif
+/* AGP page size is independent of the host page size. */
+#ifndef AGP_PAGE_SIZE
+#define AGP_PAGE_SIZE 4096
+#endif
+#define AGPGART_MAJOR_VERSION 0
+#define AGPGART_MINOR_VERSION 99
+
+static int gartFd = -1;
+static int acquiredScreen = -1;
+static Bool initDone = FALSE;
+/*
+ * Close /dev/agpgart. This frees all associated memory allocated during
+ * this server generation.
+ */
+Bool
+xf86GARTCloseScreen(int screenNum)
+{
+ if(gartFd != -1) {
+ close(gartFd);
+ acquiredScreen = -1;
+ gartFd = -1;
+ initDone = FALSE;
+ }
+ return TRUE;
+}
+
+/*
+ * Open /dev/agpgart. Keep it open until xf86GARTCloseScreen is called.
+ */
+static Bool
+GARTInit(int screenNum)
+{
+ struct _agp_info agpinf;
+
+ if (initDone)
+ return (gartFd != -1);
+
+ initDone = TRUE;
+
+ if (gartFd == -1)
+ gartFd = open(AGP_DEVICE, O_RDWR, 0);
+ else
+ return FALSE;
+
+ if (gartFd == -1) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: Unable to open " AGP_DEVICE " (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+
+ xf86AcquireGART(-1);
+ /* Check the kernel driver version. */
+ if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno));
+ close(gartFd);
+ gartFd = -1;
+ return FALSE;
+ }
+ xf86ReleaseGART(-1);
+
+#if defined(linux)
+ /* Per Dave Jones, every effort will be made to keep the
+ * agpgart interface backwards compatible, so allow all
+ * future versions.
+ */
+ if (
+#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
+ agpinf.version.major < AGPGART_MAJOR_VERSION ||
+#endif
+ (agpinf.version.major == AGPGART_MAJOR_VERSION &&
+ agpinf.version.minor < AGPGART_MINOR_VERSION)) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: Kernel agpgart driver version is not current"
+ " (%d.%d vs %d.%d)\n",
+ agpinf.version.major, agpinf.version.minor,
+ AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
+ close(gartFd);
+ gartFd = -1;
+ return FALSE;
+ }
+#endif
+
+ return TRUE;
+}
+
+Bool
+xf86AgpGARTSupported(void)
+{
+ return GARTInit(-1);
+}
+
+AgpInfoPtr
+xf86GetAGPInfo(int screenNum)
+{
+ struct _agp_info agpinf;
+ AgpInfoPtr info;
+
+ if (!GARTInit(screenNum))
+ return NULL;
+
+
+ if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86GetAGPInfo: Failed to allocate AgpInfo\n");
+ return NULL;
+ }
+
+ memset((char*)&agpinf, 0, sizeof(agpinf));
+
+ if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ info->bridgeId = agpinf.bridge_id;
+ info->agpMode = agpinf.agp_mode;
+ info->base = agpinf.aper_base;
+ info->size = agpinf.aper_size;
+ info->totalPages = agpinf.pg_total;
+ info->systemPages = agpinf.pg_system;
+ info->usedPages = agpinf.pg_used;
+
+ xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used);
+
+ return info;
+}
+
+/*
+ * XXX If multiple screens can acquire the GART, should we have a reference
+ * count instead of using acquiredScreen?
+ */
+
+Bool
+xf86AcquireGART(int screenNum)
+{
+ if (screenNum != -1 && !GARTInit(screenNum))
+ return FALSE;
+
+ if (screenNum == -1 || acquiredScreen != screenNum) {
+ if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING,
+ "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+ acquiredScreen = screenNum;
+ }
+ return TRUE;
+}
+
+Bool
+xf86ReleaseGART(int screenNum)
+{
+ if (screenNum != -1 && !GARTInit(screenNum))
+ return FALSE;
+
+ if (acquiredScreen == screenNum) {
+ /*
+ * The FreeBSD agp driver removes allocations on release.
+ * The Linux driver doesn't. xf86ReleaseGART() is expected
+ * to give up access to the GART, but not to remove any
+ * allocations.
+ */
+#if !defined(linux)
+ if (screenNum == -1)
+#endif
+ {
+ if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING,
+ "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+ acquiredScreen = -1;
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
+int
+xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
+ unsigned long *physical)
+{
+ struct _agp_allocate alloc;
+ int pages;
+
+ /*
+ * Allocates "size" bytes of GART memory (rounds up to the next
+ * page multiple) or type "type". A handle (key) for the allocated
+ * memory is returned. On error, the return value is -1.
+ */
+
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return -1;
+
+ pages = (size / AGP_PAGE_SIZE);
+ if (size % AGP_PAGE_SIZE != 0)
+ pages++;
+
+ /* XXX check for pages == 0? */
+
+ alloc.pg_count = pages;
+ alloc.type = type;
+
+ if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
+ "allocation of %d pages failed\n\t(%s)\n", pages,
+ strerror(errno));
+ return -1;
+ }
+
+ if (physical)
+ *physical = alloc.physical;
+
+ return alloc.key;
+}
+
+Bool
+xf86DeallocateGARTMemory(int screenNum, int key)
+{
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
+
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
+ return FALSE;
+ }
+
+#ifdef __linux__
+ if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) {
+#else
+ if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) {
+#endif
+ xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: "
+ "deallocation gart memory with key %d failed\n\t(%s)\n",
+ key, strerror(errno));
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Bind GART memory with "key" at "offset" */
+Bool
+xf86BindGARTMemory(int screenNum, int key, unsigned long offset)
+{
+ struct _agp_bind bind;
+ int pageOffset;
+
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
+
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86BindGARTMemory: AGP not acquired by this screen\n");
+ return FALSE;
+ }
+
+ if (offset % AGP_PAGE_SIZE != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
+ "offset (0x%lx) is not page-aligned (%d)\n",
+ offset, AGP_PAGE_SIZE);
+ return FALSE;
+ }
+ pageOffset = offset / AGP_PAGE_SIZE;
+
+ xf86DrvMsgVerb(screenNum, X_INFO, 3,
+ "xf86BindGARTMemory: bind key %d at 0x%08lx "
+ "(pgoffset %d)\n", key, offset, pageOffset);
+
+ bind.pg_start = pageOffset;
+ bind.key = key;
+
+ if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
+ "binding of gart memory with key %d\n"
+ "\tat offset 0x%lx failed (%s)\n",
+ key, offset, strerror(errno));
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+/* Unbind GART memory with "key" */
+Bool
+xf86UnbindGARTMemory(int screenNum, int key)
+{
+ struct _agp_unbind unbind;
+
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
+
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
+ return FALSE;
+ }
+
+ unbind.priority = 0;
+ unbind.key = key;
+
+ if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
+ "unbinding of gart memory with key %d "
+ "failed (%s)\n", key, strerror(errno));
+ return FALSE;
+ }
+
+ xf86DrvMsgVerb(screenNum, X_INFO, 3,
+ "xf86UnbindGARTMemory: unbind key %d\n", key);
+
+ return TRUE;
+}
+
+
+/* XXX Interface may change. */
+Bool
+xf86EnableAGP(int screenNum, CARD32 mode)
+{
+ agp_setup setup;
+
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
+
+ setup.agp_mode = mode;
+ if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
+ "AGPIOC_SETUP with mode %ld failed (%s)\n",
+ (unsigned long)mode, strerror(errno));
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
index 26a17425a..a515b4080 100644
--- a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
@@ -1,878 +1,878 @@
-/*
- * 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"
-#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__
-# 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__)
-extern void sethae(unsigned long hae);
-extern unsigned long _bus_base __P ((void)) __attribute__ ((const));
-extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const));
-
-static pointer mapVidMemSparse(int, unsigned long, unsigned long, int);
-extern axpDevice lnxGetAXP(void);
-static void unmapVidMemSparse(int, pointer, unsigned long);
-static axpDevice axpSystem = -1;
-static Bool needSparse;
-static unsigned long hae_thresh;
-static unsigned long hae_mask;
-static unsigned long bus_base;
-#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;
- DebugF("WC_BASE: 0x%lx WC_END: 0x%lx\n",base,base+d_size-1);
- 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;
- }
- bus_base = _bus_base();
- }
- 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;
- DebugF("base: %lx, realBase: %lx, alignOff: %lx \n",
- Base,realBase,alignOff);
-
-#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));
- }
- DebugF("base: %lx aligned base: %lx\n",base, base + alignOff);
- return (char *)base + alignOff;
-}
-#endif /* !(__sparc__) */
-
-static void
-unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
-{
- memType alignOff = (memType)Base
- - ((memType)Base & ~(getpagesize() - 1));
-
- DebugF("alignment offset: %lx\n",alignOff);
- munmap((caddr_t)((memType)Base - alignOff), (Size + alignOff));
-}
-
-
-/***************************************************************************/
-/* I/O Permissions section */
-/***************************************************************************/
-
-#if defined(__powerpc__)
-volatile unsigned char *ioBase = NULL;
-
-#ifndef __NR_pciconfig_iobase
-#define __NR_pciconfig_iobase 200
-#endif
-
-#endif
-
-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__) && !defined(__m32r__)
- 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;
-}
-
-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__) && !defined(__m32r__)
- iopl(0);
- ioperm(0, 1024, 0);
-#endif
- ExtendedEnabled = FALSE;
-
- 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;
-}
-
-void (*xf86WriteMmio8)(int Value, pointer Base, unsigned long Offset)
- = writeDense8;
-void (*xf86WriteMmio16)(int Value, pointer Base, unsigned long Offset)
- = writeDense16;
-void (*xf86WriteMmio32)(int Value, pointer Base, unsigned long Offset)
- = writeDense32;
-void (*xf86WriteMmioNB8)(int Value, pointer Base, unsigned long Offset)
- = writeDenseNB8;
-void (*xf86WriteMmioNB16)(int Value, pointer Base, unsigned long Offset)
- = writeDenseNB16;
-void (*xf86WriteMmioNB32)(int Value, pointer Base, unsigned long Offset)
- = writeDenseNB32;
-int (*xf86ReadMmio8)(pointer Base, unsigned long Offset)
- = readDense8;
-int (*xf86ReadMmio16)(pointer Base, unsigned long Offset)
- = readDense16;
-int (*xf86ReadMmio32)(pointer Base, unsigned long Offset)
- = readDense32;
-
-#endif /* __alpha__ */
+/*
+ * 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"
+#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__
+# 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__)
+extern void sethae(unsigned long hae);
+extern unsigned long _bus_base __P ((void)) __attribute__ ((const));
+extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const));
+
+static pointer mapVidMemSparse(int, unsigned long, unsigned long, int);
+extern axpDevice lnxGetAXP(void);
+static void unmapVidMemSparse(int, pointer, unsigned long);
+static axpDevice axpSystem = -1;
+static Bool needSparse;
+static unsigned long hae_thresh;
+static unsigned long hae_mask;
+static unsigned long bus_base;
+#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 = malloc(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 {
+ free(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 = malloc(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;
+ DebugF("WC_BASE: 0x%lx WC_END: 0x%lx\n",base,base+d_size-1);
+ 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;
+ free(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;
+ free(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;
+ }
+ bus_base = _bus_base();
+ }
+ 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;
+ DebugF("base: %lx, realBase: %lx, alignOff: %lx \n",
+ Base,realBase,alignOff);
+
+#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));
+ }
+ DebugF("base: %lx aligned base: %lx\n",base, base + alignOff);
+ return (char *)base + alignOff;
+}
+#endif /* !(__sparc__) */
+
+static void
+unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
+{
+ memType alignOff = (memType)Base
+ - ((memType)Base & ~(getpagesize() - 1));
+
+ DebugF("alignment offset: %lx\n",alignOff);
+ munmap((caddr_t)((memType)Base - alignOff), (Size + alignOff));
+}
+
+
+/***************************************************************************/
+/* I/O Permissions section */
+/***************************************************************************/
+
+#if defined(__powerpc__)
+volatile unsigned char *ioBase = NULL;
+
+#ifndef __NR_pciconfig_iobase
+#define __NR_pciconfig_iobase 200
+#endif
+
+#endif
+
+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__) && !defined(__m32r__)
+ 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;
+}
+
+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__) && !defined(__m32r__)
+ iopl(0);
+ ioperm(0, 1024, 0);
+#endif
+ ExtendedEnabled = FALSE;
+
+ 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;
+}
+
+void (*xf86WriteMmio8)(int Value, pointer Base, unsigned long Offset)
+ = writeDense8;
+void (*xf86WriteMmio16)(int Value, pointer Base, unsigned long Offset)
+ = writeDense16;
+void (*xf86WriteMmio32)(int Value, pointer Base, unsigned long Offset)
+ = writeDense32;
+void (*xf86WriteMmioNB8)(int Value, pointer Base, unsigned long Offset)
+ = writeDenseNB8;
+void (*xf86WriteMmioNB16)(int Value, pointer Base, unsigned long Offset)
+ = writeDenseNB16;
+void (*xf86WriteMmioNB32)(int Value, pointer Base, unsigned long Offset)
+ = writeDenseNB32;
+int (*xf86ReadMmio8)(pointer Base, unsigned long Offset)
+ = readDense8;
+int (*xf86ReadMmio16)(pointer Base, unsigned long Offset)
+ = readDense16;
+int (*xf86ReadMmio32)(pointer Base, unsigned long Offset)
+ = readDense32;
+
+#endif /* __alpha__ */