Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753748AbbKWMqF (ORCPT ); Mon, 23 Nov 2015 07:46:05 -0500 Received: from mail.dev.rtsoft.ru ([213.79.90.226]:45305 "EHLO dev.rtsoft.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753708AbbKWMqD (ORCPT ); Mon, 23 Nov 2015 07:46:03 -0500 Message-ID: <56530A88.5010408@dev.rtsoft.ru> Date: Mon, 23 Nov 2015 15:46:00 +0300 From: Nikita Yushchenko Organization: RTSoft Software Development Center User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: Russell King - ARM Linux CC: kuznetsovg@dev.rtsoft.ru, Ian Campbell , Mason , Ard Biesheuvel , Will Deacon , Paul Kocialkowski , linux-kernel@vger.kernel.org, Pavel Machek , linux-arm-kernel@lists.infradead.org Subject: Re: [RFC/PATCH] arm: do not skip SMP init calls on SMP_ON_UP case References: <1448279946-19975-1-git-send-email-nyushchenko@dev.rtsoft.ru> <20151123120317.GN8644@n2100.arm.linux.org.uk> <5653015C.4020405@dev.rtsoft.ru> <20151123121216.GO8644@n2100.arm.linux.org.uk> <20151123121920.GP8644@n2100.arm.linux.org.uk> In-Reply-To: <20151123121920.GP8644@n2100.arm.linux.org.uk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1512 Lines: 31 23.11.2015 15:19, Russell King - ARM Linux пишет: > On Mon, Nov 23, 2015 at 12:12:16PM +0000, Russell King - ARM Linux wrote: >> iMX6 is fairly well supported in mainline. The only reason to use a >> custom kernel is if you want to use some feature which mainline does >> not support (or support very well) such as video decode, the full IPU >> facilities, GPUs or CEC (sorry, I don't have an expansive list.) >> >> The GPU problem for the GC320/GC880/GC2000 is fairly close to being >> solved in a functional (but maybe not yet performant) manner. > > For reference, iMX6S in mainline behaves like this: > > Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=12000) > pid_max: default: 32768 minimum: 301 > Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) > Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) > Initializing cgroup subsys net_cls > CPU: Testing write buffer coherency: ok > CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 > Setting up static identity map for 0x100082c0 - 0x10008318 > Brought up 1 CPUs > SMP: Total of 1 processors activated (6.00 BogoMIPS). > CPU: All CPU(s) started in SVC mode. Indeed, somehow booted mainline and it does not try to initialize CPU 1. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/