From 8fd06c45853cb2300105db84e4b722f0e2dad8d2 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 22 Dec 2010 13:20:05 +0000 Subject: xserver libX11 libXdmcp pixman git update 22-12-2010 --- xorg-server/hw/xfree86/os-support/sco/sco_iop.c | 90 ------------------------- 1 file changed, 90 deletions(-) delete mode 100644 xorg-server/hw/xfree86/os-support/sco/sco_iop.c (limited to 'xorg-server/hw/xfree86/os-support/sco/sco_iop.c') diff --git a/xorg-server/hw/xfree86/os-support/sco/sco_iop.c b/xorg-server/hw/xfree86/os-support/sco/sco_iop.c deleted file mode 100644 index 3da4fcf3a..000000000 --- a/xorg-server/hw/xfree86/os-support/sco/sco_iop.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * Copyright 2001 by J. Kean Johnston - * - * 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 name J. Kean Johnston not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. J. Kean Johnston makes no - * representations about the suitability of this software for any purpose. - * It is provided "as is" without express or implied warranty. - * - * J. KEAN JOHNSTON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL J. KEAN JOHNSTON 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 -#endif - -#include - -#include "compiler.h" - -#define _NEED_SYSI86 -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86OSpriv.h" -#include "xf86_OSlib.h" - - -/***************************************************************************/ -/* I/O Permissions section */ -/***************************************************************************/ - -/* - * There is a right way and a wrong way of doing this. Unfortunately, we - * are forced to do it the wrong way. The right way is to be told the range - * or ranges of I/O ports the driver(s) need access to, in order to use the - * CONS_IOPERM ioctl() to grant access only to those ports we care about. - * This way we can guarantee some small level of stability because a driver - * does not have access to all ports (which would mean it could play with - * the PIT and thus affect scheduling times, or a whole slew of other - * nasty things). However, because XFree86 currently only enables or disables - * ALL port access, we need to run at IOPL 3, which basically means the - * X Server runs at the same level as the kernel. You can image why this is - * unsafe. Oh, and this is not a problem unique to OSR5, other OSes are - * affected by this as well. - * - * So, for the time being, we change our IOPL until such time as the XFree86 - * architecture is changed to allow for tighter control of I/O ports. If and - * when it is, then the CONS_ADDIOP/DELIOP ioctl() should be used to enable - * or disable access to the desired ports. - */ - -extern long sysi86 (int cmd, ...); - -static Bool IOEnabled = FALSE; - -Bool -xf86EnableIO(void) -{ - if (IOEnabled) - return TRUE; - - if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) { - xf86Msg(X_WARNING,"Failed to set IOPL for extended I/O\n"); - return FALSE; - } - - IOEnabled = TRUE; - return TRUE; -} - -void -xf86DisableIO(void) -{ - if (!IOEnabled) - return; - - sysi86(SI86V86, V86SC_IOPL, 0); - IOEnabled = FALSE; -} -- cgit v1.2.3