Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754538Ab3ILQJn (ORCPT ); Thu, 12 Sep 2013 12:09:43 -0400 Received: from mail-bk0-f41.google.com ([209.85.214.41]:49001 "EHLO mail-bk0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754137Ab3ILQJm (ORCPT ); Thu, 12 Sep 2013 12:09:42 -0400 MIME-Version: 1.0 In-Reply-To: <20130912143340.GL12758@n2100.arm.linux.org.uk> References: <1378968687-8200-1-git-send-email-cinifr@gmail.com> <1378968687-8200-4-git-send-email-cinifr@gmail.com> <20130912112452.GA22013@e106331-lin.cambridge.arm.com> <20130912143340.GL12758@n2100.arm.linux.org.uk> Date: Fri, 13 Sep 2013 00:09:40 +0800 Message-ID: Subject: Re: [PATCH 3/4] Add physical count arch timer support for clocksource in ARMv7. From: cinifr To: Russell King - ARM Linux Cc: Mark Rutland , "coosty@163.com" , "maxime.ripard@free-electrons.com" , "daniel.lezcano@linaro.org" , "tglx@linutronix.de" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "pawel.moll@arm.co" , "rob.herring@calxeda.com" , "linux-sunxi@googlegroups.com" , Marc Zyngier Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1682 Lines: 41 Thanks, but I am tring a solution in running time. On 12 September 2013 22:33, Russell King - ARM Linux wrote: > On Thu, Sep 12, 2013 at 12:24:52PM +0100, Mark Rutland wrote: >> On Thu, Sep 12, 2013 at 07:51:26AM +0100, Fan Rong wrote: >> > diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig >> > index 41c6946..a4981d2 100644 >> > --- a/drivers/clocksource/Kconfig >> > +++ b/drivers/clocksource/Kconfig >> > @@ -109,3 +109,11 @@ config VF_PIT_TIMER >> > bool >> > help >> > Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. >> > +menu "Clock Source" >> > + >> > +config ARM_ARCH_TIMER_USE_PHYCNT >> > + bool "Use Physical Count Timer" >> > + depends on ARM_ARCH_TIMER >> > + help >> > + If bootloader dont set Virtual Offset register,Physical Count Timer is needed to replace Virtual Count Timer. >> > +endmenu >> >> This cannot be a compile-time option as above in a multiplatform build. >> Other paltforms (e.g. KVM guests) *must* use the virtual counters to get >> any semblance of a consistent view of time. > > Also, for future reference: > > 1. Use a single blank lines to separate thing like 'menu' and 'endmenu'. > 2. Wrap your the help sensibly, don't put it all on one line. > 3. It's conventional to use tabs up to below "help" and then two spaces > to indent the help text. > 4. "," always has one space after it. > > Thanks. -- 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/