From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="KuC7tDRe" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C23171A6; Wed, 29 Nov 2023 16:34:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701304471; x=1732840471; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0ExlnLmiTlrkohGZSqFsp0HlE29uce6NiFPdS+zNCzA=; b=KuC7tDReSHIpjOQWcF/GMuhjhc0eLt2wOub5fb4l9ujojq+6KSvLWVN7 sFvz3/K43cQsjXzOUVVB+5kOY90pYihaDM9YikGRuJV8b4Fr/SrqiV6RQ 4YU5V737DFeOHmb00xtTbQVs6/dP5uLiIEWtszexDPTX2FEACwvm0Kq9A IDqrE7B7szV9EWJfXRFGg9RsjD6z8MQWln8aiDo2L3XqauYBHq7YJKwUE eAgcUgokqRWb2PkL7p3sxV/gDP/qmZ2kBYJZ9PcNtlSatnEhDFmdC/WLd 2RXZbhK5in4pG5sN8oq5diBlPJ7KaSU2LIM8ZpIIVSkzxx12orK+VkUPd g==; X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="392990659" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="392990659" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 16:34:28 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="762499583" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="762499583" Received: from agluck-desk3.sc.intel.com ([172.25.222.74]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 16:34:27 -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 , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck , Shaopeng Tan Subject: [PATCH v12 5/8] x86/resctrl: Add node-scope to the options for feature scope Date: Wed, 29 Nov 2023 16:34:15 -0800 Message-ID: <20231130003418.89964-6-tony.luck@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231130003418.89964-1-tony.luck@intel.com> References: <20231109230915.73600-1-tony.luck@intel.com> <20231130003418.89964-1-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Peter Newman Reviewed-by: Reinette Chatre Reviewed-by: Shaopeng Tan Tested-by: Shaopeng Tan --- 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 058a940c3239..b8a3a11b970d 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -170,6 +170,7 @@ struct resctrl_schema; enum resctrl_scope { RESCTRL_L2_CACHE = 2, RESCTRL_L3_CACHE = 3, + RESCTRL_NODE, }; /** diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index 797cb3bf417a..c9315ce8f7bd 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -502,6 +502,8 @@ static int get_domain_id_from_scope(int cpu, enum resctrl_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; } -- 2.41.0