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Make xf86{En,Dis}ableInterrupts no-ops on Linux.

This commit is contained in:
Adam Jackson 2007-06-18 12:08:39 -04:00
parent 831d3b7f8d
commit 2e7fef7d08
1 changed files with 5 additions and 57 deletions
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62
hw/xfree86/os-support/linux/lnx_video.c
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@ -604,73 +604,21 @@ xf86DisableIO(void)
return; return;
} }
/*
/***************************************************************************/ * Don't use these two functions. They can't possibly work. If you actually
/* Interrupt Handling section */ * need interrupts off for something, you ought to be doing it in the kernel
/***************************************************************************/ * anyway.
*/
/* XXX The #ifdefs should be made simpler. */
_X_EXPORT Bool _X_EXPORT Bool
xf86DisableInterrupts() xf86DisableInterrupts()
{ {
#if !defined(__mc68000__) && !defined(__powerpc__) && !defined(__sparc__) && !defined(__mips__) && !defined(__ia64__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__)
if (!ExtendedEnabled)
if (iopl(3) || ioperm(0, 1024, 1))
return (FALSE);
#endif
#if defined(__alpha__) || defined(__mc68000__) || defined(__powerpc__) || defined(__sparc__) || defined(__mips__) || defined(__arm__) || defined(__sh__) || defined(__ia64__) || defined(__hppa__) || defined(__s390__)
#else
# ifdef __GNUC__
# if defined(__ia64__)
# if 0
__asm__ __volatile__ (";; rsm psr.i;; srlz.d" ::: "memory");
# endif
# else
__asm__ __volatile__("cli");
# endif
# else
asm("cli");
# endif
#endif
#if !defined(__mc68000__) && !defined(__powerpc__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__ia64__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__)
if (!ExtendedEnabled) {
iopl(0);
ioperm(0, 1024, 0);
}
#endif
return (TRUE); return (TRUE);
} }
_X_EXPORT void _X_EXPORT void
xf86EnableInterrupts() xf86EnableInterrupts()
{ {
#if !defined(__mc68000__) && !defined(__powerpc__) && !defined(__sparc__) && !defined(__mips__) && !defined(__ia64__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__)
if (!ExtendedEnabled)
if (iopl(3) || ioperm(0, 1024, 1))
return;
#endif
#if defined(__alpha__) || defined(__mc68000__) || defined(__powerpc__) || defined(__sparc__) || defined(__mips__) || defined(__arm__) || defined(__sh__) || defined(__ia64__) || defined(__hppa__) || defined(__s390__)
#else
# ifdef __GNUC__
# if defined(__ia64__)
# if 0
__asm__ __volatile__ (";; ssm psr.i;; srlz.d" ::: "memory");
# endif
# else
__asm__ __volatile__("sti");
# endif
# else
asm("sti");
# endif
#endif
#if !defined(__mc68000__) && !defined(__powerpc__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__ia64__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__)
if (!ExtendedEnabled) {
iopl(0);
ioperm(0, 1024, 0);
}
#endif
return; return;
} }