From owner-freebsd-arch@FreeBSD.ORG  Fri Jun 12 13:23:05 2009
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: arch@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id AB15E106564A
	for <arch@freebsd.org>; Fri, 12 Jun 2009 13:23:05 +0000 (UTC)
	(envelope-from jroberson@jroberson.net)
Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.238])
	by mx1.freebsd.org (Postfix) with ESMTP id 84E218FC18
	for <arch@freebsd.org>; Fri, 12 Jun 2009 13:23:05 +0000 (UTC)
	(envelope-from jroberson@jroberson.net)
Received: by rv-out-0506.google.com with SMTP id k40so740603rvb.43
	for <multiple recipients>; Fri, 12 Jun 2009 06:23:05 -0700 (PDT)
Received: by 10.141.3.10 with SMTP id f10mr1546381rvi.258.1244812984964;
	Fri, 12 Jun 2009 06:23:04 -0700 (PDT)
Received: from ?10.0.1.198? (udp016664uds.hawaiiantel.net [72.235.41.117])
	by mx.google.com with ESMTPS id g22sm4547411rvb.16.2009.06.12.06.23.01
	(version=SSLv3 cipher=RC4-MD5); Fri, 12 Jun 2009 06:23:02 -0700 (PDT)
Date: Fri, 12 Jun 2009 03:23:31 -1000 (HST)
From: Jeff Roberson <jroberson@jroberson.net>
X-X-Sender: jroberson@desktop
To: Peter Grehan <grehan@freebsd.org>
In-Reply-To: <4A2F1148.9090706@freebsd.org>
Message-ID: <alpine.BSF.2.00.0906120322000.1037@desktop>
References: <alpine.BSF.2.00.0906032050220.981@desktop>
	<20090609201127.GA50903@alchemy.franken.de>
	<4A2F1148.9090706@freebsd.org>
User-Agent: Alpine 2.00 (BSF 1167 2008-08-23)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: arch@freebsd.org, Marius Strobl <marius@alchemy.franken.de>
Subject: Re: Dynamic pcpu, arm, mips, powerpc, sun, etc. help needed
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 12 Jun 2009 13:23:05 -0000

On Tue, 9 Jun 2009, Peter Grehan wrote:

>> As for sparc64 allocating the storage for the dynamic area
>> from end probably isn't a good idea as the pmap code assumes
>> that the range from KERNBASE to end is covered by the pages
>> allocated by and locked into the TLB for the kernel by the
>> loader
>
> Ditto for ppc. It's possible to get the additional space from within or 
> after return from pmap_bootstrap() (like thread0's kstack, or the msgbuf).
>

OK, I had originally split it into two stages.  It sounds like I should 
return to this and revise the patch again.  We worked out the i386 
problems.  I'll split it up again and post something that hopefully you 
two can try.

Thanks,
Jeff

> later,
>
> Peter.
>