diff -urN linux-2.1.99/Documentation/mtrr.txt linux/Documentation/mtrr.txt
--- linux-2.1.99/Documentation/mtrr.txt	Wed Apr 29 15:41:33 1998
+++ linux/Documentation/mtrr.txt	Sat May  2 09:25:34 1998
@@ -1,5 +1,5 @@
 MTRR (Memory Type Range Register) control
-17 Dec 1997
+2 May 1998
 Richard Gooch
 <rgooch@atnf.csiro.au>
 
@@ -33,7 +33,29 @@
 reg05: base=0x80000000 (2048MB), size=   4MB: write-combining, count=1
 ===============================================================================
 Creating MTRRs from the shell:
-% echo "base=0x80000000 size=0x400000 type=write-combining" >! /proc/mtrr
+# echo "base=0xf8000000 size=0x400000 type=write-combining" >! /proc/mtrr
+
+This is for videoram at base address 0xf8000000 and size 4 MBytes. To
+find out your base address, you need to look at the output of your X
+server, which tells you where the linear framebuffer address is. A
+typical line that you may get is:
+
+(--) S3: PCI: 968 rev 0, Linear FB @ 0xf8000000
+
+Note that you should only use the value from the X server, as it may
+move the framebuffer base address, so the only value you can trust is
+that reported by the X server.
+
+To find out the size of your framebuffer (what, you don't actually
+know?), the following line will tell you:
+
+(--) S3: videoram:  4096k
+
+That's 4 MBytes, which is 0x400000 bytes (in hexadecimal).
+A patch is being written for XFree86 which will make this automatic:
+in other words the X server will manipulate /proc/mtrr using the
+ioctl() interface, so users won't have to do anything. If you use a
+commercial X server, lobby your vendor to add support for MTRRs.
 ===============================================================================
 Removing MTRRs from the shell:
 % echo "disable=5" >! /proc/mtrr
@@ -44,7 +66,7 @@
 
     Source file for mtrr-show (example programme to show MTRRs using ioctl()'s)
 
-    Copyright (C) 1997  Richard Gooch
+    Copyright (C) 1997-1998  Richard Gooch
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -72,7 +94,7 @@
 
     Written by      Richard Gooch   17-DEC-1997
 
-    Last updated by Richard Gooch   17-DEC-1997
+    Last updated by Richard Gooch   2-MAY-1998
 
 
 */
@@ -84,7 +106,7 @@
 #include <sys/ioctl.h>
 #include <errno.h>
 #define MTRR_NEED_STRINGS
-#include <linux/mtrr.h>
+#include <asm/mtrr.h>
 
 #define TRUE 1
 #define FALSE 0
@@ -130,7 +152,7 @@
 
     Source file for mtrr-add (example programme to add an MTRRs using ioctl())
 
-    Copyright (C) 1997  Richard Gooch
+    Copyright (C) 1997-1998  Richard Gooch
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -158,7 +180,7 @@
 
     Written by      Richard Gooch   17-DEC-1997
 
-    Last updated by Richard Gooch   17-DEC-1997
+    Last updated by Richard Gooch   2-MAY-1998
 
 
 */
@@ -172,7 +194,7 @@
 #include <sys/ioctl.h>
 #include <errno.h>
 #define MTRR_NEED_STRINGS
-#include <linux/mtrr.h>
+#include <asm/mtrr.h>
 
 #define TRUE 1
 #define FALSE 0
diff -urN linux-2.1.99/arch/i386/kernel/mtrr.c linux/arch/i386/kernel/mtrr.c
--- linux-2.1.99/arch/i386/kernel/mtrr.c	Wed Apr 29 15:41:33 1998
+++ linux/arch/i386/kernel/mtrr.c	Sat May  2 09:36:18 1998
@@ -104,6 +104,9 @@
 	       Moved register-setting macros into this file.
 	       Moved setup code from init/main.c to i386-specific areas.
   v1.18
+    19980502   Richard Gooch <rgooch@atnf.csiro.au>
+	       Moved MTRR detection outside conditionals in <mtrr_init>.
+  v1.19
 */
 #include <linux/types.h>
 #include <linux/errno.h>
@@ -137,7 +140,7 @@
 #include <asm/atomic.h>
 #include <linux/smp.h>
 
-#define MTRR_VERSION            "1.18 (19980429)"
+#define MTRR_VERSION            "1.19 (19980502)"
 
 #define TRUE  1
 #define FALSE 0
@@ -1193,8 +1196,8 @@
 __initfunc(int mtrr_init(void))
 #endif
 {
-#  if !defined(__SMP__) || defined(MODULE) 
     if ( !(boot_cpu_data.x86_capability & X86_FEATURE_MTRR) ) return 0;
+#  if !defined(__SMP__) || defined(MODULE) 
     printk("mtrr: v%s Richard Gooch (rgooch@atnf.csiro.au)\n", MTRR_VERSION);
 #endif