From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 30 Jan 2009 20:33:39 +0000 (+0000)
Subject: Open /dev/mem with O_SYNC if mtrr is not available or else mmio wont work
X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=commitdiff_plain;h=9f77f53b8c9be6abb8b28fe465fc57c79229f011;ds=sidebyside

Open /dev/mem with O_SYNC if mtrr is not available or else mmio wont work
properly.


SVN-Revision: 14288
---

diff --git a/Xorg/xorg/xserver/xorg-server/patches/010-sync-dev-mem.patch b/Xorg/xorg/xserver/xorg-server/patches/010-sync-dev-mem.patch
new file mode 100644
index 0000000000..06ebd2860c
--- /dev/null
+++ b/Xorg/xorg/xserver/xorg-server/patches/010-sync-dev-mem.patch
@@ -0,0 +1,13 @@
+diff --git a/hw/xfree86/os-support/linux/lnx_video.c b/hw/xfree86/os-support/linux/lnx_video.c
+index 1bd2d57..0ac829c 100644
+--- a/hw/xfree86/os-support/linux/lnx_video.c
++++ b/hw/xfree86/os-support/linux/lnx_video.c
+@@ -468,7 +468,7 @@ mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+         mapflags |= MAP_NONCACHED; 
+ #endif
+ 
+-#if 0
++#ifndef HAVE_MTRR
+     /* this will disappear when people upgrade their kernels */
+     fd = open(DEV_MEM,
+ 	      ((flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR) | O_SYNC);