From owner-svn-src-head@FreeBSD.ORG  Mon May  2 17:49:06 2011
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 19C1F106564A;
	Mon,  2 May 2011 17:49:06 +0000 (UTC)
	(envelope-from marcel@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 0863D8FC18;
	Mon,  2 May 2011 17:49:06 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id p42Hn5c7048134;
	Mon, 2 May 2011 17:49:05 GMT (envelope-from marcel@svn.freebsd.org)
Received: (from marcel@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id p42Hn53t048132;
	Mon, 2 May 2011 17:49:05 GMT (envelope-from marcel@svn.freebsd.org)
Message-Id: <201105021749.p42Hn53t048132@svn.freebsd.org>
From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Mon, 2 May 2011 17:49:05 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r221334 - head/sys/ia64/include
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 02 May 2011 17:49:06 -0000

Author: marcel
Date: Mon May  2 17:49:05 2011
New Revision: 221334
URL: http://svn.freebsd.org/changeset/base/221334

Log:
  Don't use the whole region 5 for KVA, because the CPU may not implement all
  of the 61 bits available within the region for virtual addressing.  Since
  there's no good way for us to map out the gap in the virtual address space,
  limit KVA to the architectural minimum implemented address bits. This still
  gives us 1 petabyte of KVA, so no worries.

Modified:
  head/sys/ia64/include/vmparam.h

Modified: head/sys/ia64/include/vmparam.h
==============================================================================
--- head/sys/ia64/include/vmparam.h	Mon May  2 17:46:59 2011	(r221333)
+++ head/sys/ia64/include/vmparam.h	Mon May  2 17:49:05 2011	(r221334)
@@ -182,7 +182,8 @@
 #define	VM_MIN_ADDRESS		0
 #define	VM_MAXUSER_ADDRESS	IA64_RR_BASE(IA64_VM_MINKERN_REGION)
 #define	VM_MIN_KERNEL_ADDRESS	IA64_RR_BASE(IA64_VM_MINKERN_REGION + 1)
-#define	VM_MAX_KERNEL_ADDRESS	(IA64_RR_BASE(IA64_VM_MINKERN_REGION + 2) - 1)
+#define	VM_MAX_KERNEL_ADDRESS	\
+		(VM_MIN_KERNEL_ADDRESS + IA64_REGION_GAP_START - 1)
 #define	VM_MAX_ADDRESS		~0UL
 
 #define	KERNBASE		VM_MAXUSER_ADDRESS