From nobody Mon Feb 9 12:01:45 2026 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 212DCEB64D7 for ; Wed, 21 Jun 2023 17:40:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231281AbjFURks (ORCPT ); Wed, 21 Jun 2023 13:40:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229954AbjFURkk (ORCPT ); Wed, 21 Jun 2023 13:40:40 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBB86193; Wed, 21 Jun 2023 10:40:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687369239; x=1718905239; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aUw1ko8XN5kSoQKed9FOjszj0DPEXH1X0Jv1dS7/3l4=; b=NsfwqCvjdEyHOkI9BAMocFPGur1SDxQda3pc0G+s7Z9oW9bycOvxb9xG MQdvgdlreGcL3vmun9UvCjTWkOyw+PstasP2oV/QlifutBFziBD1tv2zO l09T36t6AZW2SvQPDwvCWtYGu8ZD7BPWWJShYdhQ3cfZp9jhrmIoMANg+ TWp8VCPJD2aAnkSinw8eDjq5GXlyppQOyw7mqOHHcuBuzRlcYmjWMQp4o GKcKd1Bm35YuCIFzk7HyXIglgLBma/F0vj8f/swixiZ6AbXI6FXj2jpTZ HCUpEfvGCorYL3VFaiy+X0qiwphexfyiJMqQ4ut3g46RPQODFiK2M4hWv A==; X-IronPort-AV: E=McAfee;i="6600,9927,10748"; a="359120523" X-IronPort-AV: E=Sophos;i="6.00,261,1681196400"; d="scan'208";a="359120523" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2023 10:40:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10748"; a="779921568" X-IronPort-AV: E=Sophos;i="6.00,261,1681196400"; d="scan'208";a="779921568" Received: from agluck-desk3.sc.intel.com ([172.25.222.74]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2023 10:40:16 -0700 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 v2 3/7] x86/resctrl: Add a new node-scoped resource to rdt_resources_all[] Date: Wed, 21 Jun 2023 10:40:02 -0700 Message-Id: <20230621174006.42533-4-tony.luck@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230621174006.42533-1-tony.luck@intel.com> References: <20230621174006.42533-1-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 --- arch/x86/kernel/cpu/resctrl/internal.h | 4 +++- arch/x86/kernel/cpu/resctrl/core.c | 12 ++++++++++++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/r= esctrl/internal.h index 8275b8a74f7e..243017096ddf 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -435,6 +435,7 @@ enum resctrl_res_level { RDT_RESOURCE_L2, RDT_RESOURCE_MBA, RDT_RESOURCE_SMBA, + RDT_RESOURCE_NODE, =20 /* Must be the last */ RDT_NUM_RESOURCES, @@ -442,7 +443,8 @@ enum resctrl_res_level { =20 enum resctrl_scope { SCOPE_L2_CACHE =3D 2, - SCOPE_L3_CACHE =3D 3 + SCOPE_L3_CACHE =3D 3, + SCOPE_NODE, }; =20 static inline struct rdt_resource *resctrl_inc(struct rdt_resource *res) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index 6571514752f3..e4bd3072927c 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -112,6 +112,16 @@ 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 0, + }, + }, }; =20 /* @@ -489,6 +499,8 @@ 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 2.40.1