From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu Subject: Re: [PATCH v3 00/24] C6X: New architecture Date: Thu, 29 Sep 2011 08:42:37 -0400 Message-ID: <60327.1317300157@turing-police.cc.vt.edu> References: <1317155405-26235-1-git-send-email-msalter@redhat.com> <22021.1317246541@turing-police.cc.vt.edu> <201109291233.24623.arnd@arndb.de> <1317298919.2580.92.camel@deneb.redhat.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1317300157_4421P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Return-path: Received: from lennier.cc.vt.edu ([198.82.162.213]:43340 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754512Ab1I2MnL (ORCPT ); Thu, 29 Sep 2011 08:43:11 -0400 In-Reply-To: Your message of "Thu, 29 Sep 2011 08:21:58 EDT." <1317298919.2580.92.camel@deneb.redhat.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Mark Salter Cc: Arnd Bergmann , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org --==_Exmh_1317300157_4421P Content-Type: text/plain; charset=us-ascii On Thu, 29 Sep 2011 08:21:58 EDT, Mark Salter said: > One thing that we plan to push later is an XIP model where cores can share a > single kernel text image but run with their own copies of data. So you end up > with something like a loosely coupled multiprocessor system with some hardware > support for multicore communication and peripheral sharing. Ah, OK. I eventually came across a mention in one of the patches of running a separate instance of Linux on each core, whick left me even more mystified. But the above clarifies it, thanks... I wonder how many currently global variables will need to be moved to per_cpu structures to make it work, and how intrusive that will end up. Or is the plan to have the boot loader simply plonk the entire .data/.bss in different locations for each core? --==_Exmh_1317300157_4421P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFOhGe9cC3lWbTT17ARAjxVAJ9BK60NbcVXSY506pqOWLd94GQz6QCgs58c 2poKcwjoj4HP1RBqkzd9Tp0= =ms+8 -----END PGP SIGNATURE----- --==_Exmh_1317300157_4421P--