oops - added forgotten desc for my mga-ppc-rs6k.patch ...

git-svn-id: http://www.rocklinux.org/svn/rock-linux/trunk@2337 c5f82cb5-29bc-0310-9cd0-bff59a50e3bc

package/x11/xfree86/mga-ppc-rs6k.patch

@@ -17,6 +17,22 @@
 # 
 # --- ROCK-COPYRIGHT-NOTE-END ---
 
+This patch fixes various tiny but accumulating issues in the mga 
+driver for big-endian machines - e.g. debugged and tested on PowerPC / 
+RS/6k: 
+  
+- use of the correct PCI config space register to get the MMIO range 
+- disable byte-swapping the framebuffer for a little-endian FB 
+- use a tinier probe size for g200 video-ram (the g200 seems to wrap 
+  every 8MB boundary - at least here as configured in my RS/6k) and 
+  harden the memory-access loop a bit 
+- fix the XVideo MGACopyMangled for big-endian (...) 
+- added some stray "ScrnInfoPtr pScrn" for compilation with DEBUG 
+  defined 
+- fixed the debugging macros (for big-endian) and improved them a bit 
+  to make debugging for people without the SPEC or long experience with 
+  the driver easier
+
 diff -ur xc/programs/Xserver/hw/xfree86/drivers/mga/mga.h xc-working/programs/Xserver/hw/xfree86/drivers/mga/mga.h
 --- xc/programs/Xserver/hw/xfree86/drivers/mga/mga.h	2003-10-10 13:06:02.000000000 +0200
 +++ xc-working/programs/Xserver/hw/xfree86/drivers/mga/mga.h	2004-02-15 00:51:40.000000000 +0100