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authormarha <marha@users.sourceforge.net>2012-09-24 08:28:39 +0200
committermarha <marha@users.sourceforge.net>2012-09-24 08:28:39 +0200
commit0ebcd32e91486caccc041c8ca23e39e160b24702 (patch)
tree50cd0bc17e8a587fdbecdf52be48fe8c59e222b9 /xorg-server/hw/xfree86/os-support
parent06d4ea68085558b94d8e9c937091e7b7fcc5d95a (diff)
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mesa pixman xserver git update 24 sep 2012
xserver: 7722bcbab2507d263c7685b15cccbfdd52fc3a24 pixman: c4b69e706e63e01fbc70e0026c2079007c89de14 mesa: c432c86e6aeebeb46c028af940224c59faa16e88
Diffstat (limited to 'xorg-server/hw/xfree86/os-support')
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/lnx_video.c89
1 files changed, 50 insertions, 39 deletions
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
index 3526a21d4..d9a5da184 100644
--- a/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_video.c
@@ -479,45 +479,39 @@ volatile unsigned char *ioBase = NULL;
#define __NR_pciconfig_iobase 200
#endif
-#endif
-
-Bool
-xf86EnableIO(void)
+static Bool
+hwEnableIO(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);
+ unsigned int 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__) && !defined(__nds32__)
+
+ return ioBase != MAP_FAILED;
+}
+
+static void
+hwDisableIO(void)
+{
+ munmap(ioBase, 0x20000);
+ ioBase = NULL;
+}
+
+#elif defined(__i386__) || defined(__x86_64__) || defined(__ia64__) || \
+ defined(__alpha__)
+
+static Bool
+hwEnableIO(void)
+{
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));
+ ErrorF("xf86EnableIOPorts: failed to set IOPL for I/O (%s)\n",
+ strerror(errno));
return FALSE;
}
#if !defined(__alpha__)
@@ -526,27 +520,44 @@ xf86EnableIO(void)
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;
}
+static void
+hwDisableIO(void)
+{
+ iopl(0);
+ ioperm(0, 1024, 0);
+}
+
+#else /* non-IO architectures */
+
+#define hwEnableIO() TRUE
+#define hwDisableIO() do {} while (0)
+
+#endif
+
+Bool
+xf86EnableIO(void)
+{
+ if (ExtendedEnabled)
+ return TRUE;
+
+ ExtendedEnabled = hwEnableIO();
+
+ return ExtendedEnabled;
+}
+
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__) && !defined(__nds32__)
- iopl(0);
- ioperm(0, 1024, 0);
-#endif
- ExtendedEnabled = FALSE;
- return;
+ hwDisableIO();
+
+ ExtendedEnabled = FALSE;
}
#if defined (__alpha__)