From nobody Wed Dec 17 02:45:08 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 09030C001DF for ; Fri, 20 Oct 2023 21:32:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345035AbjJTVcF (ORCPT ); Fri, 20 Oct 2023 17:32:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233086AbjJTVbw (ORCPT ); Fri, 20 Oct 2023 17:31:52 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D58C10C7; Fri, 20 Oct 2023 14:31:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697837504; x=1729373504; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PPC1r6dgSPwk3Jqy3pzMArl9dtHBn43K2YX6uqco7UE=; b=j6X7SlMZ/GQZBQyWlApthWYEglyZpVOGharWjDYOC0HyCTzyBKJhz1Ek 1eSKP9z+uapE4eTsTNKeWPunTaDmgb84mRZQs6Jl4Zj/gnxqb16j1Xm3l u166zFzkScZwYylBQjRPghtvmIUyXX/SAxA11x4liWH3BUT9wosxfrgvQ xwxT6CzJCyWz6VpYVpDV+7I80wsW22u8fVAKZv/J+Rpxo1CkBLGj1Br1A u6muacgWZ9jW0e+RR3GryvGDFmXgQJFmo012zxuXr25GvIBQsxSvLX2zR 28xpI7RKZhfrsiWMiLoTPWhky0sxPybpZOwFGhSXWds9lFs4d17563Jh2 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10869"; a="371647155" X-IronPort-AV: E=Sophos;i="6.03,239,1694761200"; d="scan'208";a="371647155" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2023 14:31:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10869"; a="881184516" X-IronPort-AV: E=Sophos;i="6.03,239,1694761200"; d="scan'208";a="881184516" Received: from agluck-desk3.sc.intel.com ([172.25.222.74]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2023 14:31:10 -0700 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Peter Newman , Jonathan Corbet , Shuah Khan , x86@kernel.org Cc: Shaopeng Tan , James Morse , Jamie Iles , Babu Moger , Randy Dunlap , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v9 5/8] x86/resctrl: Add node-scope to the options for feature scope Date: Fri, 20 Oct 2023 14:30:57 -0700 Message-ID: <20231020213100.123598-6-tony.luck@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231020213100.123598-1-tony.luck@intel.com> References: <20231003213043.13565-1-tony.luck@intel.com> <20231020213100.123598-1-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" Currently supported resctrl features are all domain scoped the same as the scope of the L2 or L3 caches. Add RESCTRL_NODE as a new option for features that are scoped at the same granularity as NUMA nodes. This is needed for Intel's Sub-NUMA Cluster (SNC) feature where monitoring features are node scoped. Reviewed-by: Peter Newman Signed-off-by: Tony Luck --- No changes since v6 except to add Peter's review tag include/linux/resctrl.h | 1 + arch/x86/kernel/cpu/resctrl/core.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 4778ef71c893..683706355810 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -172,6 +172,7 @@ struct resctrl_schema; enum resctrl_scope { RESCTRL_L2_CACHE =3D 2, RESCTRL_L3_CACHE =3D 3, + RESCTRL_NODE, }; =20 /** diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index bcc4bd2e1930..2c3975c9c20c 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -515,6 +515,8 @@ static int get_domain_id_from_scope(int cpu, enum resct= rl_scope scope) case RESCTRL_L2_CACHE: case RESCTRL_L3_CACHE: return get_cpu_cacheinfo_id(cpu, scope); + case RESCTRL_NODE: + return cpu_to_node(cpu); default: break; } --=20 2.41.0