From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7159BC433EA for ; Fri, 26 Mar 2021 19:09:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE39361A10 for ; Fri, 26 Mar 2021 19:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230439AbhCZTJ1 (ORCPT ); Fri, 26 Mar 2021 15:09:27 -0400 Received: from mga03.intel.com ([134.134.136.65]:27820 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230179AbhCZTJA (ORCPT ); Fri, 26 Mar 2021 15:09:00 -0400 IronPort-SDR: S+5dHjd6aST3d5G7SbudqnbK8lMZRVncVS5w1vERf8bNySZoDjyCRnO6U8mR6vn9yeeFEfru3C W9y+IvG/fzSg== X-IronPort-AV: E=McAfee;i="6000,8403,9935"; a="191234796" X-IronPort-AV: E=Sophos;i="5.81,281,1610438400"; d="scan'208";a="191234796" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Mar 2021 12:09:00 -0700 IronPort-SDR: 5wTX3PIGKDXYsysz6xkZ/rEBlQ315jR3Q1qQCIC6MXAI+iGTidpr81fRD84wwY3elLj5qPDjph lQY9IuE8cs+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,281,1610438400"; d="scan'208";a="392321102" Received: from otc-lr-04.jf.intel.com ([10.54.39.41]) by orsmga002.jf.intel.com with ESMTP; 26 Mar 2021 12:09:00 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@kernel.org, linux-kernel@vger.kernel.org Cc: acme@kernel.org, tglx@linutronix.de, bp@alien8.de, namhyung@kernel.org, jolsa@redhat.com, ak@linux.intel.com, yao.jin@linux.intel.com, alexander.shishkin@linux.intel.com, adrian.hunter@intel.com, Kan Liang Subject: [PATCH V3 11/25] perf/x86/intel: Factor out intel_pmu_check_num_counters Date: Fri, 26 Mar 2021 12:01:58 -0700 Message-Id: <1616785332-165261-12-git-send-email-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1616785332-165261-1-git-send-email-kan.liang@linux.intel.com> References: <1616785332-165261-1-git-send-email-kan.liang@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kan Liang Each Hybrid PMU has to check its own number of counters and mask fixed counters before registration. The intel_pmu_check_num_counters will be reused later to check the number of the counters for each hybrid PMU. Reviewed-by: Andi Kleen Signed-off-by: Kan Liang --- arch/x86/events/intel/core.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index b5b7694..9394646 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -5070,6 +5070,26 @@ static const struct attribute_group *attr_update[] = { static struct attribute *empty_attrs; +static void intel_pmu_check_num_counters(int *num_counters, + int *num_counters_fixed, + u64 *intel_ctrl, u64 fixed_mask) +{ + if (*num_counters > INTEL_PMC_MAX_GENERIC) { + WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!", + *num_counters, INTEL_PMC_MAX_GENERIC); + *num_counters = INTEL_PMC_MAX_GENERIC; + } + *intel_ctrl = (1ULL << *num_counters) - 1; + + if (*num_counters_fixed > INTEL_PMC_MAX_FIXED) { + WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!", + *num_counters_fixed, INTEL_PMC_MAX_FIXED); + *num_counters_fixed = INTEL_PMC_MAX_FIXED; + } + + *intel_ctrl |= fixed_mask << INTEL_PMC_IDX_FIXED; +} + __init int intel_pmu_init(void) { struct attribute **extra_skl_attr = &empty_attrs; @@ -5709,20 +5729,10 @@ __init int intel_pmu_init(void) x86_pmu.attr_update = attr_update; - if (x86_pmu.num_counters > INTEL_PMC_MAX_GENERIC) { - WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!", - x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC); - x86_pmu.num_counters = INTEL_PMC_MAX_GENERIC; - } - x86_pmu.intel_ctrl = (1ULL << x86_pmu.num_counters) - 1; - - if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) { - WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!", - x86_pmu.num_counters_fixed, INTEL_PMC_MAX_FIXED); - x86_pmu.num_counters_fixed = INTEL_PMC_MAX_FIXED; - } - - x86_pmu.intel_ctrl |= (u64)fixed_mask << INTEL_PMC_IDX_FIXED; + intel_pmu_check_num_counters(&x86_pmu.num_counters, + &x86_pmu.num_counters_fixed, + &x86_pmu.intel_ctrl, + (u64)fixed_mask); /* AnyThread may be deprecated on arch perfmon v5 or later */ if (x86_pmu.intel_cap.anythread_deprecated) -- 2.7.4