From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Christophe PLAGNIOL-VILLARD Subject: Re: [Ksummit-2009-discuss] Representing Embedded Architectures at the Kernel Summit Date: Wed, 3 Jun 2009 16:06:54 +0200 Message-ID: <20090603140654.GA17962@game.jcrosoft.org> References: <1243956140.4229.25.camel@mulgrave.int.hansenpartnership.com> <1244034286.24482.84.camel@pc1117.cambridge.arm.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <1244034286.24482.84.camel@pc1117.cambridge.arm.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Catalin Marinas Cc: James Bottomley , ksummit-2009-discuss@lists.linux-foundation.org, linux-arch@vger.kernel.org, linux-embedded@vger.kernel.org > > * Asymmetric MP: > * Different CPU frequencies > * Different CPU features (e.g. floating point only one > some CPUs): scheduler awareness, per-CPU hwcap bits (in > case user space wants to set the affinity) > * Asymmetric workload balancing for power consumption (may > be better to load 1 CPU at 60% than 4 at 15%) I'll add * Different Core ARCH * FDT or similar to describe I/O (MEM, PCI, GPIO) acessible for each instance * Mailbox Architecture * boot preocedure (bootloader as example done by Kumar Gala for the mpc8572ds in linux & U-Boot) * sharing rootfs (RO) (reduce the rootfs size on embedded) Best Regards, J.