From: Jordan Gordeev <jgordeev@dir.bg>
Date: Thu, 17 Sep 2009 22:14:30 +0000 (+0300)
Subject: amd64: Fix for Xorg.
X-Git-Tag: v2.4.1~88
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/87fc7ec99f4dff984e15b494d2083cbc3b523d5d

amd64: Fix for Xorg.
Xorg can now access the video card.
Adapted from i386.
---

diff --git a/sys/platform/pc64/amd64/sysarch.c b/sys/platform/pc64/amd64/sysarch.c
index 98a04bc963..afc3bdb1bd 100644
--- a/sys/platform/pc64/amd64/sysarch.c
+++ b/sys/platform/pc64/amd64/sysarch.c
@@ -39,6 +39,7 @@
 #include <sys/sysproto.h>
 #include <sys/memrange.h>
 #include <sys/errno.h>
+#include <sys/proc.h>
 
 int
 sys_sysarch(struct sysarch_args *uap)
@@ -49,12 +50,14 @@ sys_sysarch(struct sysarch_args *uap)
 int
 cpu_set_iopl(void)
 {
-	return (EOPNOTSUPP);
+	curthread->td_lwp->lwp_md.md_regs->tf_rflags |= PSL_IOPL;
+	return(0);
 }
 
 int
 cpu_clr_iopl(void)
 {
-	return (EOPNOTSUPP);
+	curthread->td_lwp->lwp_md.md_regs->tf_rflags &= ~PSL_IOPL;
+	return(0);
 }