From patchwork Tue Mar 29 09:15:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?546L5pOO?= X-Patchwork-Id: 1610553 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=vivo0.onmicrosoft.com header.i=@vivo0.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-vivo0-onmicrosoft-com header.b=bvTS0py0; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KSP7m1c8Dz9s5V for ; Tue, 29 Mar 2022 20:16:20 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4KSP7l34Rsz2yN4 for ; Tue, 29 Mar 2022 20:16:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=vivo0.onmicrosoft.com header.i=@vivo0.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-vivo0-onmicrosoft-com header.b=bvTS0py0; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vivo.com (client-ip=2a01:111:f403:704b::712; helo=apc01-tyz-obe.outbound.protection.outlook.com; envelope-from=wangqing@vivo.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=vivo0.onmicrosoft.com header.i=@vivo0.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-vivo0-onmicrosoft-com header.b=bvTS0py0; dkim-atps=neutral Received: from APC01-TYZ-obe.outbound.protection.outlook.com (mail-tyzapc01on20712.outbound.protection.outlook.com [IPv6:2a01:111:f403:704b::712]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4KSP7S1LrHz2xCy for ; Tue, 29 Mar 2022 20:16:01 +1100 (AEDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=m/xrl/pnwYKoHs4D0C7EyeDNhzSS9yeUvT7G4Z457quLQf18u/zmeJiF83sWojXwYF/ULBDyoMY4c7Dji2tUrIvuRwQCMFcahlKtpJwYI/6sD0FWA08U/+eu1Ob2jpCAtAIVOxzWPe7L3n00Sr0ui9cqJFFlxSvn2XV0HWI30jaAhpZ+dg89w84ThY1A2lhAlOvaOGnVLW7xGo4BBAC9zv+tfw9HkO3Ola8dsAlYb2hNH5rzDr/ej74Ae0laj1pQtZNryTOloYHEQOOsaRtdccDJIMqOBQ+bbjLlq38lh4WjuyzXXsJD0txYeJ36gRx8n0CLReWU4pAagk1fG0cc/g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=AsLpBcWHTZ5dQx/ugdKF9vcYxVEToO5vBWIJLVikUng=; b=oBTKtevLmsFmkR3eKQQ7YYcQKGH7waYgH61jh3QoL3730nv61b71Wg3IVSkqBPrZtpZrjirJpB9jisD+64bQchPYM/73MrWqFeq21++zo2buFqQ9BYwPYSr19WqXxAjlxd6EjzwTv/TX1B5DkiQCpMio65Q6gB6ft6it4S8rIG/P08AgugZTkS2kfE6rX5n2Ueld6TFLL/Yc8IlPc/Cpzvky6cnOpEYnOlbTPUQ6/Q9rLJgcJZt1XI4gysAxQDv1SZoWaxaaEoBXy+cfZyEIbgvoKnDt3ORYQZ6YQGehKrvisCABGSURKFm5f6fy3A6fPSKiIhBkAcq+vmFFFSh2IQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo0.onmicrosoft.com; s=selector2-vivo0-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=AsLpBcWHTZ5dQx/ugdKF9vcYxVEToO5vBWIJLVikUng=; b=bvTS0py0yYm/u4hU//lhaOrQY7cAgWICFE7hgt/RhGZwadUo7HYlmCvWvM8TkWLL2tIvcF+Dsd2uOFS+21lCgz9IAtbGHYuJDbsQ1lbOsA/5v9mUwMx9dtfRNwBIlfS6M0+xtzlWGTutpCXHQq5u8YXyqoZX/5byLsd7AWpODPo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from SL2PR06MB3082.apcprd06.prod.outlook.com (2603:1096:100:37::17) by KL1PR0601MB3875.apcprd06.prod.outlook.com (2603:1096:820:21::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5102.17; Tue, 29 Mar 2022 09:15:36 +0000 Received: from SL2PR06MB3082.apcprd06.prod.outlook.com ([fe80::49ef:baa:8c3b:cb3d]) by SL2PR06MB3082.apcprd06.prod.outlook.com ([fe80::49ef:baa:8c3b:cb3d%5]) with mapi id 15.20.5102.023; Tue, 29 Mar 2022 09:15:36 +0000 From: Qing Wang To: Catalin Marinas , Will Deacon , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Sudeep Holla , Greg Kroah-Hartman , "Rafael J. Wysocki" , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 0/3] support for describing cache topology from DT Date: Tue, 29 Mar 2022 02:15:18 -0700 Message-Id: <1648545322-14531-1-git-send-email-wangqing@vivo.com> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: HK2PR02CA0214.apcprd02.prod.outlook.com (2603:1096:201:20::26) To SL2PR06MB3082.apcprd06.prod.outlook.com (2603:1096:100:37::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c904f93d-aad8-4ea9-e53c-08da1164af4c X-MS-TrafficTypeDiagnostic: KL1PR0601MB3875:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:SL2PR06MB3082.apcprd06.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(8936002)(5660300002)(66946007)(110136005)(6666004)(6486002)(83380400001)(508600001)(38350700002)(38100700002)(8676002)(66556008)(66476007)(4326008)(7416002)(86362001)(6512007)(921005)(36756003)(2616005)(52116002)(107886003)(2906002)(6506007)(316002)(186003)(26005); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: c904f93d-aad8-4ea9-e53c-08da1164af4c X-MS-Exchange-CrossTenant-AuthSource: SL2PR06MB3082.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Mar 2022 09:15:36.3206 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Y57fKUYZz+bFvW5Sn0GH1YE84mpQWqQwAbDujwJXqkwK1HGgwiG2rOb6kFsa6z1DLNYNiRrcGEe7yPW6si+JYw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: KL1PR0601MB3875 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wang Qing Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Wang Qing We don't know anything about the cache topology info without ACPI, but in fact we can get it from DT like: * cpu0: cpu@000 { * next-level-cache = <&L2_1>; * L2_1: l2-cache { * compatible = "cache"; * next-level-cache = <&L3_1>; * }; * L3_1: l3-cache { * compatible = "cache"; * }; * }; * * cpu1: cpu@001 { * next-level-cache = <&L2_1>; * cpu-idle-states = <&clusteroff_l &mcusysoff * &system_mem &system_pll &system_bus * &s2idle>; * }; * cpu2: cpu@002 { * L2_2: l2-cache { * compatible = "cache"; * next-level-cache = <&L3_1>; * }; * }; * * cpu3: cpu@003 { * next-level-cache = <&L2_2>; * }; Building the cache topology has many benefits, here is a part of useage. Wang Qing (3): sched: topology: add input parameter for sched_domain_flags_f() arch_topology: support for describing cache topology from DT arm64: add arm64 default topology arch/arm64/kernel/smp.c | 56 ++++++++++++++++++++++++++ arch/powerpc/kernel/smp.c | 4 +- arch/x86/kernel/smpboot.c | 8 ++-- drivers/base/arch_topology.c | 89 +++++++++++++++++++++++++++++++++++++++++- include/linux/arch_topology.h | 4 ++ include/linux/sched/topology.h | 10 ++--- kernel/sched/topology.c | 2 +- 7 files changed, 160 insertions(+), 13 deletions(-)