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

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properly.


git-svn-id: svn://svn.openwrt.org/openwrt/packages@14288 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
lars 2009-01-30 20:33:39 +00:00
parent 5958744506
commit d34d6c4c75
1 changed files with 13 additions and 0 deletions
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13
Xorg/xorg/xserver/xorg-server/patches/010-sync-dev-mem.patch Normal file
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@ -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);