Received: by 2002:a05:6a10:7420:0:0:0:0 with SMTP id hk32csp790553pxb; Thu, 17 Feb 2022 15:02:29 -0800 (PST) X-Google-Smtp-Source: ABdhPJy/thKREbwKxJ8+9nQtSB3MdP/i0Ufk5cBmqDykkRpuoaeRjj57UjgLKp+k/oi40EwkRnhu X-Received: by 2002:a17:90b:1185:b0:1b8:c2ba:e20 with SMTP id gk5-20020a17090b118500b001b8c2ba0e20mr5354528pjb.119.1645138949753; Thu, 17 Feb 2022 15:02:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1645138949; cv=none; d=google.com; s=arc-20160816; b=dgmE338WzKbdUT0eZdR2mSJIWTMQNhm/ICPyMuIXEJPi8axqcGZPbcxPVgqHKz77j0 UrLBKYetskAKSx9ros52RwoG7bapAlr+lJWSuvOSNdj9HWW4L5DcKb9Ydlb8KatdlSpW hCe4V0AMbZo0UhRCmUCxKgpO2xQifuxuHbk0nUBhT6oIGMK2T9ObUNKKuhpvBiYL3rmR Sj9p76FW1g7QQopl8qOOVOccsPOgcv1xGjySHxNUgw5nvrfkQ5Rzo94Y/d1NTpaA8ec7 Zx6kfi1ihABWESrPgv5N77VaEHm97wID6OIwN41L0j2xhOtY3boiG/rx5+BnSatXWmOh honA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=QuwEDepDtknZALs2O35ZcKNR7elXoT9Grei+JFO4ilA=; b=kfXC8kH9N1p+1TNw44Sqhpkckj5ZpZQajjlhV1cO8mX5T6gjBKiOObBvSVJgPqeygA nNF5Tn+7eoNUCdgzjKSVB+t1xq0yiAK1hcsnL1IxjPI5y2wYVepRvKMzQrINw7CWxftL 68zy2Licl4qX+MukktrxIk9HL6HMt/8yJYAylJvKBAa5fdpeclzpXZla8+8LqPoRq4/Z hGqG9OUbhUWhXn/u6MGI+7ljgilCkeY7IS7WSpZabStNxKninL5hT+8ANMoggQmjwIc9 5A4N0ctBuOyjYDw2e2VcvOcU/InoHS8Jc8+yrzuvNl5rJDXEBLGVpceGdYckmnDA9L3A mdLQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [2620:137:e000::1:18]) by mx.google.com with ESMTPS id c3si9740050pgt.617.2022.02.17.15.02.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Feb 2022 15:02:29 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id ABCEF2271E9; Thu, 17 Feb 2022 14:58:05 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244183AbiBQSXJ (ORCPT + 99 others); Thu, 17 Feb 2022 13:23:09 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:49464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244211AbiBQSXC (ORCPT ); Thu, 17 Feb 2022 13:23:02 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 01596E9C for ; Thu, 17 Feb 2022 10:22:33 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B4ED4113E; Thu, 17 Feb 2022 10:22:33 -0800 (PST) Received: from merodach.members.linode.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 83CC43F718; Thu, 17 Feb 2022 10:22:31 -0800 (PST) From: James Morse To: x86@kernel.org, linux-kernel@vger.kernel.org Cc: Fenghua Yu , Reinette Chatre , Thomas Gleixner , Ingo Molnar , Borislav Petkov , H Peter Anvin , Babu Moger , James Morse , shameerali.kolothum.thodi@huawei.com, Jamie Iles , D Scott Phillips OS , lcherian@marvell.com, bobo.shaobowang@huawei.com, tan.shaopeng@fujitsu.com Subject: [PATCH v3 00/21] x86/resctrl: Make resctrl_arch_rmid_read() return values in bytes Date: Thu, 17 Feb 2022 18:20:49 +0000 Message-Id: <20220217182110.7176-1-james.morse@arm.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes in this version? Expanded the commit message of patch 12, and made a few things static, as reported by the kbuild robot. --- The aim of this series is to insert a split between the parts of the monitor code that the architecture must implement, and those that are part of the resctrl filesystem. The eventual aim is to move all filesystem parts out to live in /fs/resctrl, so that resctrl can be wired up for MPAM. What's MPAM? See the cover letter of a previous series. [1] The series adds domain online/offline callbacks to allow the filesystem to manage some of its structures itself, then moves all the 'mba_sc' behaviour to be part of the filesystem. This means another architecture doesn't need to provide an mbps_val array. As its all software, the resctrl filesystem should be able to do this without any help from the architecture code. Finally __rmid_read() is refactored to be the API call that the architecture provides to read a counter value. All the hardware specific overflow detection, scaling and value correction should occur behind this helper. This series is based on v5.17-rc1, and can be retrieved from: git://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/resctrl_monitors_in_bytes/v3 [0] git://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/resctrl_merge_cdp/v7 [1] https://lore.kernel.org/lkml/20210728170637.25610-1-james.morse@arm.com/ [v1] https://lore.kernel.org/lkml/20210729223610.29373-1-james.morse@arm.com/ [v2] https://lore.kernel.org/lkml/20211001160302.31189-1-james.morse@arm.com/ Thanks, James Morse (21): x86/resctrl: Kill off alloc_enabled x86/resctrl: Merge mon_capable and mon_enabled x86/resctrl: Add domain online callback for resctrl work x86/resctrl: Group struct rdt_hw_domain cleanup x86/resctrl: Add domain offline callback for resctrl work x86/resctrl: Remove set_mba_sc()s control array re-initialisation x86/resctrl: Create mba_sc configuration in the rdt_domain x86/resctrl: Switch over to the resctrl mbps_val list x86/resctrl: Remove architecture copy of mbps_val x86/resctrl: Abstract and use supports_mba_mbps() x86/resctrl: Allow update_mba_bw() to update controls directly x86/resctrl: Calculate bandwidth from the previous __mon_event_count() chunks x86/recstrl: Add per-rmid arch private storage for overflow and chunks x86/recstrl: Allow per-rmid arch private storage to be reset x86/resctrl: Abstract __rmid_read() x86/resctrl: Pass the required parameters into resctrl_arch_rmid_read() x86/resctrl: Move mbm_overflow_count() into resctrl_arch_rmid_read() x86/resctrl: Move get_corrected_mbm_count() into resctrl_arch_rmid_read() x86/resctrl: Rename and change the units of resctrl_cqm_threshold x86/resctrl: Add resctrl_rmid_realloc_limit to abstract x86's boot_cpu_data x86/resctrl: Make resctrl_arch_rmid_read() return values in bytes arch/x86/kernel/cpu/resctrl/core.c | 117 ++++-------- arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 75 +++++--- arch/x86/kernel/cpu/resctrl/internal.h | 61 +++---- arch/x86/kernel/cpu/resctrl/monitor.c | 211 ++++++++++++++-------- arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 2 +- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 205 +++++++++++++++++---- include/linux/resctrl.h | 62 ++++++- 7 files changed, 478 insertions(+), 255 deletions(-) -- 2.30.2