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="ZGD75bn9" Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5769810F; Mon, 4 Dec 2023 10:54:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701716051; x=1733252051; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TkM1/qfG9rVOu2jJBDBlxItgf0eq8sR4sTuDIQX/ctA=; b=ZGD75bn9WW1kk/tdif/KdFJpArcjp1n3wtP1REKmowQvwzlWSAOPhdap 9sjARsel7Vg55XIL3tfv12XcQIxx0Ye+bmXUJVHgi4IK3G65c3MKTWF5l cNKNki59HLgkaD9Md/WwDUYreQzPLQDCs1Y0PaQUvq/JqQksC7CVP2xXP gqYF7/fZXBP+CUp2552bHy7L/KtQspdVlPElVuyGOo+OjGUhjH/Knddpn y7RrvtAixY/Dy1I9FCCGXEzrqjItZURLyLE7J6oFmZm0NtPxWVoIivn4k OPV9wXAnu+iPKuUcYyMbUIX9MRCUqQdA9kByV+cAwSnYqymrF5aKnJO5i w==; X-IronPort-AV: E=McAfee;i="6600,9927,10914"; a="838504" X-IronPort-AV: E=Sophos;i="6.04,250,1695711600"; d="scan'208";a="838504" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2023 10:54:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10914"; a="836687201" X-IronPort-AV: E=Sophos;i="6.04,250,1695711600"; d="scan'208";a="836687201" 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; 04 Dec 2023 10:54:07 -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 v13 5/8] x86/resctrl: Add node-scope to the options for feature scope Date: Mon, 4 Dec 2023 10:53:54 -0800 Message-ID: <20231204185357.120501-6-tony.luck@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231204185357.120501-1-tony.luck@intel.com> References: <20231130003418.89964-1-tony.luck@intel.com> <20231204185357.120501-1-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 Tested-by: Shaopeng Tan Reviewed-by: Peter Newman Reviewed-by: Reinette Chatre Reviewed-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