From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754071AbbIPOlF (ORCPT ); Wed, 16 Sep 2015 10:41:05 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:34241 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752227AbbIPOlC (ORCPT ); Wed, 16 Sep 2015 10:41:02 -0400 From: Jisheng Zhang To: CC: , , Jisheng Zhang Subject: [PATCH] arm: add cpu_idle tracepoints to arch_cpu_idle Date: Wed, 16 Sep 2015 22:37:00 +0800 Message-ID: <1442414220-7204-1-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=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1507310000 definitions=main-1509160192 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/arm/kernel/process.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index f192a2a..aa78e09 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -66,11 +67,13 @@ void (*arm_pm_idle)(void); void arch_cpu_idle(void) { + trace_cpu_idle_rcuidle(1, smp_processor_id()); if (arm_pm_idle) arm_pm_idle(); else cpu_do_idle(); local_irq_enable(); + trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); } void arch_cpu_idle_prepare(void) -- 2.5.1