From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751208AbdAWN7s (ORCPT ); Mon, 23 Jan 2017 08:59:48 -0500 Received: from mail-wm0-f41.google.com ([74.125.82.41]:36094 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751016AbdAWN7r (ORCPT ); Mon, 23 Jan 2017 08:59:47 -0500 Date: Mon, 23 Jan 2017 14:59:42 +0100 From: Daniel Lezcano To: David Engraf Cc: nicolas.ferre@atmel.com, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock Message-ID: <20170123135942.GC2166@mai> References: <20170111135059.21318-1-david.engraf@sysgo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170111135059.21318-1-david.engraf@sysgo.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 11, 2017 at 02:50:59PM +0100, David Engraf wrote: > On newer boards the TC can be read as single 32 bit value without locking. > Thus the clock can be used as reference for sched_clock which is much more > accurate than the jiffies implementation. > > Tested on a Atmel SAMA5D2 board. > > Signed-off-by: David Engraf > --- Nicolas, if you agree I will take this change. -- Daniel