From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753656Ab1EFHFP (ORCPT ); Fri, 6 May 2011 03:05:15 -0400 Received: from mga03.intel.com ([143.182.124.21]:25325 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751599Ab1EFHFN (ORCPT ); Fri, 6 May 2011 03:05:13 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.64,325,1301900400"; d="scan'208";a="431563177" From: Lin Ming To: Peter Zijlstra , Ingo Molnar Cc: linux-kernel Subject: [PATCH] perf events, x86: Add SandyBridge stalled-cycles-frontend/backend events Date: Fri, 6 May 2011 07:14:02 +0000 Message-Id: <1304666042-17577-1-git-send-email-ming.m.lin@intel.com> X-Mailer: git-send-email 1.7.4.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Extend the Intel SandyBridge PMU driver with definitions for generic front-end and back-end stall events. ( As commit 3011203 says, these are only approximations. ) Signed-off-by: Lin Ming --- arch/x86/kernel/cpu/perf_event_intel.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index c1ec7a5..61cbf48 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -1485,6 +1485,12 @@ static __init int intel_pmu_init(void) x86_pmu.event_constraints = intel_snb_event_constraints; x86_pmu.pebs_constraints = intel_snb_pebs_events; + + /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e; + /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x18001b1; + pr_cont("SandyBridge events, "); break; -- 1.7.4.4