From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752504Ab2LQLxb (ORCPT ); Mon, 17 Dec 2012 06:53:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:53617 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751897Ab2LQLxa (ORCPT ); Mon, 17 Dec 2012 06:53:30 -0500 Date: Mon, 17 Dec 2012 12:53:23 +0100 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Arnaldo Carvalho de Melo Subject: [PATCH RFC -tip 4/6] perf/x86/Core PMU: IRQ-bound performance events Message-ID: <5c5570487652e8ab5d17aff7b2771cf62fb8a921.1355744680.git.agordeev@redhat.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Alexander Gordeev --- arch/x86/kernel/cpu/perf_event_intel.c | 23 +++++++++++++++++++++-- 1 files changed, 21 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 61e6db4..71086c4 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -1585,6 +1585,25 @@ static void core_pmu_enable_all(int added) } } +void core_pmu_enable_irq(int irq) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + int idx; + + for (idx = 0; idx < x86_pmu.num_counters; idx++) { + struct perf_event *event = cpuc->events[idx]; + + if (!test_bit(idx, cpuc->actirq_mask) || + cpuc->events[idx]->attr.exclude_host) + continue; + if (event->irq != irq) + continue; + + __x86_pmu_enable_event(&event->hw, + ARCH_PERFMON_EVENTSEL_ENABLE); + } +} + PMU_FORMAT_ATTR(event, "config:0-7" ); PMU_FORMAT_ATTR(umask, "config:8-15" ); PMU_FORMAT_ATTR(edge, "config:18" ); @@ -1615,8 +1634,8 @@ static __initconst const struct x86_pmu core_pmu = { .handle_irq = x86_pmu_handle_irq, .disable_all = x86_pmu_disable_all, .enable_all = core_pmu_enable_all, - .disable_irq = x86_pmu_enable_irq_nop_int, - .enable_irq = x86_pmu_enable_irq_nop_int, + .disable_irq = x86_pmu_disable_irq, + .enable_irq = core_pmu_enable_irq, .enable = core_pmu_enable_event, .disable = x86_pmu_disable_event, .hw_config = x86_pmu_hw_config, -- 1.7.7.6 -- Regards, Alexander Gordeev agordeev@redhat.com