From nobody Sun Feb 8 07:08:05 2026 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5B6B163A9B; Wed, 28 Feb 2024 19:37:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709149047; cv=none; b=oI080kstFuXlDRSNrZwtnhC+kICs/m8Dk/br0hHJ9yq0DGHGKMQGGd7CxRiK8fbARVvlwY7qGlUUYHdkXzCNlwRq6tu4pNMG6z1ZlRDBiIFxPs3YFXKWwlU+eZB6AhrS/LQ1N+O4pLk8boKxmsDKRsDWzIe1gv04Kt7iNKGffWE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709149047; c=relaxed/simple; bh=KwqVlzMvCSatbSbhZi5QVyiYc25iBbPunJU/yJjlwi4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GtZk99M4TUtQSRSlB544pLwAghvDgryX6GguA9Bz3auXodLtljP/Z5AuKBslwhvH83JhzOkNbCacSRb9mU/Nt9l662y3uCjMjwXKFhVaBv4udmrGv8HHzcTlTFMSBEgkXKoMDojOpSPYWzjUnJMvMfBYYRVH3des4JJfkqCUxNo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=YlhkDThU; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YlhkDThU" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709149045; x=1740685045; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KwqVlzMvCSatbSbhZi5QVyiYc25iBbPunJU/yJjlwi4=; b=YlhkDThUtyK3dyHS+SSTbN3jHytT051UisDWmSTYn6uW2N8kqegiMdyC LRYzfPAfWTQy6AG9yyXDs1lJyKnME8XgsdthHvP83Vu6sWmPXdBLbFrvi az6qaEflMOy4ru8Nxzkb4GLh6s9R8LvM/9FqDKPY7vvNMzJ8N3/YXBmUm PnoJyxlMisNzwJkoSdYqIgLLD7/4CJaxkBnnMmrotvQxMKj7kiVSZ5Qj2 tu60kJZKU5jDA2irDDNHcHa+bSBCIByCE3Tl+yvqKXbZedIL1D9YQfsMZ ubKpNE1sbJJMy21B0jRMKL5ZMAKIuuBWg56+AVLLd2Vdb6Kg05pCz8/pb A==; X-IronPort-AV: E=McAfee;i="6600,9927,10998"; a="3495553" X-IronPort-AV: E=Sophos;i="6.06,191,1705392000"; d="scan'208";a="3495553" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 11:37:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,191,1705392000"; d="scan'208";a="7485398" Received: from agluck-desk3.sc.intel.com ([172.25.222.105]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 11:37:20 -0800 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 , Drew Fustini , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v15 5/8] x86/resctrl: Add node-scope to the options for feature scope Date: Wed, 28 Feb 2024 11:37:00 -0800 Message-ID: <20240228193717.8170-7-tony.luck@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240228112935.8087-tony.luck@intel.com> References: <20240228112215.8044-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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. Signed-off-by: Tony Luck --- 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 1a4ac60522bb..87b360e87215 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -176,6 +176,7 @@ 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 cd58c9d4710f..c34ce367c456 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -510,6 +510,8 @@ 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 2.43.0