From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755895Ab1EZIf4 (ORCPT ); Thu, 26 May 2011 04:35:56 -0400 Received: from mga14.intel.com ([143.182.124.37]:47310 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752752Ab1EZIfz (ORCPT ); Thu, 26 May 2011 04:35:55 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.65,272,1304319600"; d="scan'208";a="2115340" Subject: [PATCH 1/3] export some perf interfaces From: Zhang Rui To: LKML , linux-pm Cc: a.p.zijlstra@chello.nl, mingo@elte.hu, ming.m.lin@intel.com, acme@redhat.com, "Brown, Len" Content-Type: text/plain; charset="UTF-8" Date: Thu, 26 May 2011 16:34:13 +0800 Message-ID: <1306398853.2207.155.camel@rui> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Export perf interfaces. Needed by the next patch, which exports the Package/Core/Uncore/DRAM energy consumption via perf tool. Singed-off-by: Zhang Rui --- include/linux/perf_event.h | 3 +++ kernel/events/core.c | 11 ++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) Index: linux-2.6/include/linux/perf_event.h =================================================================== --- linux-2.6.orig/include/linux/perf_event.h +++ linux-2.6/include/linux/perf_event.h @@ -1153,6 +1153,9 @@ extern void perf_swevent_put_recursion_c extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); extern void perf_event_task_tick(void); +extern void perf_swevent_init_hrtimer(struct perf_event *event); +extern void perf_swevent_start_hrtimer(struct perf_event *event); +extern void perf_swevent_cancel_hrtimer(struct perf_event *event); #else static inline void perf_event_task_sched_in(struct task_struct *task) { } Index: linux-2.6/kernel/events/core.c =================================================================== --- linux-2.6.orig/kernel/events/core.c +++ linux-2.6/kernel/events/core.c @@ -5648,7 +5648,7 @@ static enum hrtimer_restart perf_swevent return ret; } -static void perf_swevent_start_hrtimer(struct perf_event *event) +void perf_swevent_start_hrtimer(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; s64 period; @@ -5669,8 +5669,9 @@ static void perf_swevent_start_hrtimer(s ns_to_ktime(period), 0, HRTIMER_MODE_REL_PINNED, 0); } +EXPORT_SYMBOL_GPL(perf_swevent_start_hrtimer); -static void perf_swevent_cancel_hrtimer(struct perf_event *event) +void perf_swevent_cancel_hrtimer(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; @@ -5681,8 +5682,9 @@ static void perf_swevent_cancel_hrtimer( hrtimer_cancel(&hwc->hrtimer); } } +EXPORT_SYMBOL_GPL(perf_swevent_cancel_hrtimer); -static void perf_swevent_init_hrtimer(struct perf_event *event) +void perf_swevent_init_hrtimer(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; @@ -5705,6 +5707,7 @@ static void perf_swevent_init_hrtimer(st event->attr.freq = 0; } } +EXPORT_SYMBOL_GPL(perf_swevent_init_hrtimer); /* * Software event: cpu wall time clock @@ -6077,6 +6080,7 @@ free_pdc: free_percpu(pmu->pmu_disable_count); goto unlock; } +EXPORT_SYMBOL_GPL(perf_pmu_register); void perf_pmu_unregister(struct pmu *pmu) { @@ -6098,6 +6102,7 @@ void perf_pmu_unregister(struct pmu *pmu put_device(pmu->dev); free_pmu_context(pmu); } +EXPORT_SYMBOL_GPL(perf_pmu_unregister); struct pmu *perf_init_event(struct perf_event *event) {