Module Name:    src
Committed By:   chs
Date:           Wed Jul  5 19:30:51 UTC 2017

Modified Files:
        src/sys/arch/evbarm/fdt: fdt_machdep.c

Log Message:
the extent code cannot use the full range of u_long,
so ignore the last page before 4GB too.  ok jmcneill@


To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/arch/evbarm/fdt/fdt_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/evbarm/fdt/fdt_machdep.c
diff -u src/sys/arch/evbarm/fdt/fdt_machdep.c:1.8 src/sys/arch/evbarm/fdt/fdt_machdep.c:1.9
--- src/sys/arch/evbarm/fdt/fdt_machdep.c:1.8	Wed Jul  5 01:08:45 2017
+++ src/sys/arch/evbarm/fdt/fdt_machdep.c	Wed Jul  5 19:30:51 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_machdep.c,v 1.8 2017/07/05 01:08:45 jmcneill Exp $ */
+/* $NetBSD: fdt_machdep.c,v 1.9 2017/07/05 19:30:51 chs Exp $ */
 
 /*-
  * Copyright (c) 2015-2017 Jared McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.8 2017/07/05 01:08:45 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.9 2017/07/05 19:30:51 chs Exp $");
 
 #include "opt_machdep.h"
 #include "opt_ddb.h"
@@ -410,8 +410,8 @@ initarm(void *arg)
 
 #if !defined(_LP64)
 	/* Cannot map memory above 4GB */
-	if (memory_addr + memory_size > 0x100000000)
-		memory_size = 0x100000000 - memory_addr;
+	if (memory_addr + memory_size >= 0x100000000)
+		memory_size = 0x100000000 - memory_addr - PAGE_SIZE;
 #endif
 
 	ram_size = (bus_size_t)memory_size;

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