From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751789AbaAXHBG (ORCPT ); Fri, 24 Jan 2014 02:01:06 -0500 Received: from e39.co.us.ibm.com ([32.97.110.160]:33562 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751144AbaAXHBE (ORCPT ); Fri, 24 Jan 2014 02:01:04 -0500 Subject: [PATCH V2 0/2] time/cpuidle: Support in tick broadcast framework in absence of external clock device To: daniel.lezcano@linaro.org, peterz@infradead.org, fweisbec@gmail.com, galak@kernel.crashing.org, paul.gortmaker@windriver.com, paulus@samba.org, mingo@kernel.org, mikey@neuling.org, shangw@linux.vnet.ibm.com, rafael.j.wysocki@intel.com, agraf@suse.de, benh@kernel.crashing.org, paulmck@linux.vnet.ibm.com, arnd@arndb.de, linux-pm@vger.kernel.org, rostedt@goodmis.org, michael@ellerman.id.au, john.stultz@linaro.org, anton@samba.org, tglx@linutronix.de, chenhui.zhao@freescale.com, deepthi@linux.vnet.ibm.com, r58472@freescale.com, geoff@infradead.org, linux-kernel@vger.kernel.org, srivatsa.bhat@linux.vnet.ibm.com, schwidefsky@de.ibm.com, svaidy@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org From: Preeti U Murthy Date: Fri, 24 Jan 2014 12:27:08 +0530 Message-ID: <20140124065501.17564.39363.stgit@preeti.in.ibm.com> User-Agent: StGit/0.16-38-g167d MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14012407-9332-0000-0000-000002DECABB Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This earlier version of this patchset can be found here: https://lkml.org/lkml/2013/12/12/687. This version has been based on the discussion in http://www.kernelhub.org/?p=2&msg=399516. This patchset provides the hooks that the architectures without an external clock device and deep idle states where the local timers stop can make use of. Presently we are in need of this support on certain implementations of PowerPC. This patchset has been used on PowerPC for testing with --- Preeti U Murthy (1): time: Change the return type of clockevents_notify() to integer Thomas Gleixner (1): tick/cpuidle: Initialize hrtimer mode of broadcast include/linux/clockchips.h | 15 ++++- kernel/time/Makefile | 2 - kernel/time/clockevents.c | 8 ++- kernel/time/tick-broadcast-hrtimer.c | 102 ++++++++++++++++++++++++++++++++++ kernel/time/tick-broadcast.c | 51 ++++++++++++++++- kernel/time/tick-internal.h | 6 +- 6 files changed, 171 insertions(+), 13 deletions(-) create mode 100644 kernel/time/tick-broadcast-hrtimer.c --