$NetBSD$

--- work/xorg-server-1.3.0.0/hw/xfree86/os-support/bsd/ppc_video.c~	2006-09-18 15:04:18.000000000 +0900
+++ hw/xfree86/os-support/bsd/ppc_video.c	2008-02-25 21:55:34.000000000 +0900
@@ -46,6 +46,7 @@
 /***************************************************************************/
 /* Video Memory Mapping section                                            */
 /***************************************************************************/
+static int  devMemFd = -1;
 
 #ifndef __OpenBSD__
 #define DEV_MEM "/dev/mem"
@@ -73,15 +74,28 @@
 {
 	int fd = xf86Info.screenFd;
 	pointer base;
-#ifdef DEBUG
+#if 1 //def DEBUG
 	xf86MsgVerb(X_INFO, 3, "mapVidMem %lx, %lx, fd = %d", 
 		    Base, Size, fd);
 #endif
 
+#if 0
 	base = mmap(0, Size,
 		    (flags & VIDMEM_READONLY) ?
 		     PROT_READ : (PROT_READ | PROT_WRITE),
 		    MAP_SHARED, fd, Base);
+#else
+        if (devMemFd < 0) 
+	  if ((devMemFd = open(DEV_MEM, O_RDWR)) < 0)
+	    {
+	      FatalError("ppcMapVidMem: failed to open %s (%s)\n",
+			 "/dev/mem", strerror(errno));
+	    }
+        base = mmap(0, Size, PROT_READ | PROT_WRITE,
+		    /*(flags & VIDMEM_READONLY) ?
+		      PROT_READ : (PROT_READ | PROT_WRITE),*/
+                    MAP_SHARED, devMemFd, Base);
+#endif
 	if (base == MAP_FAILED)
 		FatalError("%s: could not mmap screen [s=%x,a=%x] (%s)",
 			   "xf86MapVidMem", Size, Base, strerror(errno));