From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753972AbbIPO1e (ORCPT ); Wed, 16 Sep 2015 10:27:34 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:14534 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753095AbbIPO1a (ORCPT ); Wed, 16 Sep 2015 10:27:30 -0400 From: Jisheng Zhang To: , CC: , , Jisheng Zhang Subject: [PATCH] arm64: add cpu_idle tracepoints to arch_cpu_idle Date: Wed, 16 Sep 2015 22:23:21 +0800 Message-ID: <1442413401-2955-1-git-send-email-jszhang@marvell.com> X-Mailer: git-send-email 2.5.1 MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-09-16_03:,, signatures=0 X-Proofpoint-Spam-Details: rule=inbound_notspam policy=inbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1507310000 definitions=main-1509160191 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, if cpuidle is disabled or not supported, powertop reports zero wakeups and zero events. This is due to the cpu_idle tracepoints are missing. This patch is to make cpu_idle tracepoints always available even if cpuidle is disabled or not supported. Signed-off-by: Jisheng Zhang --- arch/arm64/kernel/process.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 223b093..f75b540 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include @@ -75,8 +76,10 @@ void arch_cpu_idle(void) * This should do all the clock switching and wait for interrupt * tricks */ + trace_cpu_idle_rcuidle(1, smp_processor_id()); cpu_do_idle(); local_irq_enable(); + trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); } #ifdef CONFIG_HOTPLUG_CPU -- 2.5.1