From nobody Sun Sep 14 06:38:08 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93A7DC54EAA for ; Thu, 26 Jan 2023 18:42:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231925AbjAZSmp (ORCPT ); Thu, 26 Jan 2023 13:42:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230019AbjAZSmd (ORCPT ); Thu, 26 Jan 2023 13:42:33 -0500 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68E4E402D8; Thu, 26 Jan 2023 10:42:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674758552; x=1706294552; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=sfw55e9pOISjtn87W0zcDQDfivg/FZE8hQOsm+yl2hY=; b=TDv94L+z2Z7d5rlAohU44bWNGIfKDhy0ZHcIxF2eo35NDF1AButwlqSb rxOACzKAQbcVJuxNrnGZopohLB2SGb9l8vaKy6O4Je5FhBWeC893Q+KwG 9SNKbDKSvGWOL/hJTR6efFf//Dgdr2NjPzN3lbXyS2/25MDQB+M8QiGiV R1rlS7s/8OaNQlbX4Kj2zi+BTl1Tl/25WPwAmEAVaQQPC3BDBaj9JExed U4HDVEIPmLdN21L76PvS9xAk6MkwLJA79YS1fXGuOqtTtGvymP9w16PD4 uKlQ44we40M4ptYKseRgXQ0I7iHVP2/P8xBf8htkFhmw/ROdJhc505rd3 g==; X-IronPort-AV: E=McAfee;i="6500,9779,10602"; a="354203341" X-IronPort-AV: E=Sophos;i="5.97,249,1669104000"; d="scan'208";a="354203341" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2023 10:42:06 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10602"; a="991745445" X-IronPort-AV: E=Sophos;i="5.97,249,1669104000"; d="scan'208";a="991745445" Received: from agluck-desk3.sc.intel.com ([172.25.222.78]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2023 10:42:05 -0800 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Peter Newman , Jonathan Corbet , x86@kernel.org Cc: Shaopeng Tan , James Morse , Jamie Iles , Babu Moger , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH 3/7] x86/resctrl: Add a new node-scoped resource to rdt_resources_all[] Date: Thu, 26 Jan 2023 10:41:53 -0800 Message-Id: <20230126184157.27626-4-tony.luck@intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230126184157.27626-1-tony.luck@intel.com> References: <20230126184157.27626-1-tony.luck@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add a placeholder in the array of struct rdt_hw_resource to be used for event monitoring of systems with Sub-NUMA Cluster enabled. Update get_domain_id() to handle SCOPE_NODE. Signed-off-by: Tony Luck Reviewed-By: Peter Newman Tested-By: Peter Newman --- arch/x86/kernel/cpu/resctrl/internal.h | 2 ++ arch/x86/kernel/cpu/resctrl/core.c | 12 ++++++++++++ 2 files changed, 14 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/r= esctrl/internal.h index 15cea517efaa..39a62babd60b 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -409,12 +409,14 @@ enum resctrl_res_level { RDT_RESOURCE_L3, RDT_RESOURCE_L2, RDT_RESOURCE_MBA, + RDT_RESOURCE_NODE, =20 /* Must be the last */ RDT_NUM_RESOURCES, }; =20 enum resctrl_scope { + SCOPE_NODE, SCOPE_L2_CACHE =3D 2, SCOPE_L3_CACHE =3D 3 }; diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index 6914232acf84..19be6fe42ef3 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -100,6 +100,16 @@ struct rdt_hw_resource rdt_resources_all[] =3D { .fflags =3D RFTYPE_RES_MB, }, }, + [RDT_RESOURCE_NODE] =3D + { + .r_resctrl =3D { + .rid =3D RDT_RESOURCE_NODE, + .name =3D "L3", + .scope =3D SCOPE_NODE, + .domains =3D domain_init(RDT_RESOURCE_NODE), + .fflags =3D RFTYPE_RES_MB, + }, + }, }; =20 /* @@ -464,6 +474,8 @@ static int arch_domain_mbm_alloc(u32 num_rmid, struct r= dt_hw_domain *hw_dom) =20 static int get_domain_id(int cpu, enum resctrl_scope scope) { + if (scope =3D=3D SCOPE_NODE) + return cpu_to_node(cpu); return get_cpu_cacheinfo_id(cpu, scope); } =20 --=20 2.39.1