From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mason Subject: Re: schedule_timeout sleeps too long after dividing CPU frequency Date: Fri, 15 May 2015 11:21:16 +0200 Message-ID: <5555BA8C.7090906@free.fr> References: <555218C7.5050602@free.fr> <20150512155004.GP2067@n2100.arm.linux.org.uk> <555380F8.5050306@free.fr> <5554858A.9010207@free.fr> <20150514115456.GB23999@linux> <55549DEE.6010202@free.fr> <5554B5C1.2070402@free.fr> <20150515041632.GG6348@linux> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Return-path: Received: from smtp4-g21.free.fr ([212.27.42.4]:2164 "EHLO smtp4-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754462AbbEOJV2 (ORCPT ); Fri, 15 May 2015 05:21:28 -0400 In-Reply-To: <20150515041632.GG6348@linux> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Viresh Kumar Cc: Russell King - ARM Linux , Daniel Lezcano , "Rafael J. Wysocki" , Mans Rullgard , Linux ARM , Linux PM , cpufreq On 15/05/2015 06:16, Viresh Kumar wrote: > What core does your platform have? Cortex A9? Doesn't that uses this > timer instead: drivers/clocksource/arm_arch_timer.c ? Cortex-A9 MPCore r3p0 Generic Timer (aka Architected system timer) is not available in Cortex-A9. https://community.arm.com/message/8775 "Generic Timer is not an option on the Cortex-A9 (or A8 or A5) processors. The Generic Timer is an optional part of the ARMv7 architecture, and is not implemented by those three processors." Regards. From mboxrd@z Thu Jan 1 00:00:00 1970 From: slash.tmp@free.fr (Mason) Date: Fri, 15 May 2015 11:21:16 +0200 Subject: schedule_timeout sleeps too long after dividing CPU frequency In-Reply-To: <20150515041632.GG6348@linux> References: <555218C7.5050602@free.fr> <20150512155004.GP2067@n2100.arm.linux.org.uk> <555380F8.5050306@free.fr> <5554858A.9010207@free.fr> <20150514115456.GB23999@linux> <55549DEE.6010202@free.fr> <5554B5C1.2070402@free.fr> <20150515041632.GG6348@linux> Message-ID: <5555BA8C.7090906@free.fr> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 15/05/2015 06:16, Viresh Kumar wrote: > What core does your platform have? Cortex A9? Doesn't that uses this > timer instead: drivers/clocksource/arm_arch_timer.c ? Cortex-A9 MPCore r3p0 Generic Timer (aka Architected system timer) is not available in Cortex-A9. https://community.arm.com/message/8775 "Generic Timer is not an option on the Cortex-A9 (or A8 or A5) processors. The Generic Timer is an optional part of the ARMv7 architecture, and is not implemented by those three processors." Regards.