From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754762AbaHBIVv (ORCPT ); Sat, 2 Aug 2014 04:21:51 -0400 Received: from gw-1.arm.linux.org.uk ([78.32.30.217]:33361 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751189AbaHBIVt (ORCPT ); Sat, 2 Aug 2014 04:21:49 -0400 Date: Sat, 2 Aug 2014 09:21:41 +0100 From: Russell King - ARM Linux To: Rob Herring Cc: Brian Norris , Arnd Bergmann , Olof Johansson , "devicetree@vger.kernel.org" , Florian Fainelli , Christian Daudt , Linux Kernel , Matt Porter , Marc Carino , Gregory Fong , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH v8 01/11] ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs Message-ID: <20140802082141.GX30282@n2100.arm.linux.org.uk> References: <1405976886-27807-1-git-send-email-computersforpeace@gmail.com> <1405976886-27807-2-git-send-email-computersforpeace@gmail.com> <20140731022320.GM3711@ld-irv-0074> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 01, 2014 at 09:33:44AM -0500, Rob Herring wrote: > On Wed, Jul 30, 2014 at 9:23 PM, Brian Norris > wrote: > > Like what? > > Errata work-arounds, performance bits, etc. I don't recall exactly > which ones are per core vs. global. I assume this is an A9, but cores > with virt extensions would also need to drop to non-secure mode. The kernel's bringup just before enabling the CPU deals with that stuff provided your CPU is running in secure mode, but you are right - we /do/ want to encourage platforms to do the errata fixups before they call the kernel via any entry point. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux Subject: Re: [PATCH v8 01/11] ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs Date: Sat, 2 Aug 2014 09:21:41 +0100 Message-ID: <20140802082141.GX30282@n2100.arm.linux.org.uk> References: <1405976886-27807-1-git-send-email-computersforpeace@gmail.com> <1405976886-27807-2-git-send-email-computersforpeace@gmail.com> <20140731022320.GM3711@ld-irv-0074> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring Cc: Brian Norris , Arnd Bergmann , Olof Johansson , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Florian Fainelli , Christian Daudt , Linux Kernel , Matt Porter , Marc Carino , Gregory Fong , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: devicetree@vger.kernel.org On Fri, Aug 01, 2014 at 09:33:44AM -0500, Rob Herring wrote: > On Wed, Jul 30, 2014 at 9:23 PM, Brian Norris > wrote: > > Like what? > > Errata work-arounds, performance bits, etc. I don't recall exactly > which ones are per core vs. global. I assume this is an A9, but cores > with virt extensions would also need to drop to non-secure mode. The kernel's bringup just before enabling the CPU deals with that stuff provided your CPU is running in secure mode, but you are right - we /do/ want to encourage platforms to do the errata fixups before they call the kernel via any entry point. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Sat, 2 Aug 2014 09:21:41 +0100 Subject: [PATCH v8 01/11] ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs In-Reply-To: References: <1405976886-27807-1-git-send-email-computersforpeace@gmail.com> <1405976886-27807-2-git-send-email-computersforpeace@gmail.com> <20140731022320.GM3711@ld-irv-0074> Message-ID: <20140802082141.GX30282@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Aug 01, 2014 at 09:33:44AM -0500, Rob Herring wrote: > On Wed, Jul 30, 2014 at 9:23 PM, Brian Norris > wrote: > > Like what? > > Errata work-arounds, performance bits, etc. I don't recall exactly > which ones are per core vs. global. I assume this is an A9, but cores > with virt extensions would also need to drop to non-secure mode. The kernel's bringup just before enabling the CPU deals with that stuff provided your CPU is running in secure mode, but you are right - we /do/ want to encourage platforms to do the errata fixups before they call the kernel via any entry point. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net.