From mboxrd@z Thu Jan 1 00:00:00 1970 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 616C8C71153 for ; Mon, 28 Aug 2023 14:35:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230366AbjH1OfC (ORCPT ); Mon, 28 Aug 2023 10:35:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231126AbjH1OfB (ORCPT ); Mon, 28 Aug 2023 10:35:01 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5380C9 for ; Mon, 28 Aug 2023 07:34:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693233298; x=1724769298; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=0GPJBVETKr0elJKyjYnsO6X1WEkBJ4D5Uo2VZCV0EuE=; b=gZvGbaG0v341cfBohGNtg0Tf0f1SiDAqsfB+fmAij+Q7aJNvj3WyGmWF BhN2N65DQm7Tw9XqPhdadEKe4JaSxuxuNr4KQ4IL8Z4jXGgrIAjvOEnIg fAN+505ImKs2Lpt2QcQe2qDknddnf2eLY6la7CJfllv6TEv+EubSP+e6i nH3C+qxZmOqjm1k5IwK4yHGEef5KNCUj0oYULCxCjcf7OCfkA9d9txo7H EpsCf/fXxC5aiMXsE09/9eYLdWMAHgYEJfSxg16Ti02ToXChXXE01pz7/ Fg2SLvHaL1q43FeE1+Y/oPDoHuWQORkn14DVy0PUiQNSMmzMV8xrFiPNz g==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461491140" X-IronPort-AV: E=Sophos;i="6.02,207,1688454000"; d="scan'208";a="461491140" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2023 07:34:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="773281598" X-IronPort-AV: E=Sophos;i="6.02,207,1688454000"; d="scan'208";a="773281598" Received: from avandeve-mobl1.amr.corp.intel.com (HELO [10.209.114.105]) ([10.209.114.105]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2023 07:34:32 -0700 Message-ID: Date: Mon, 28 Aug 2023 07:34:32 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 Subject: Re: [patch V4 24/41] x86/cpu: Provide cpu_init/parse_topology() Content-Language: en-US To: K Prateek Nayak , Thomas Gleixner , LKML Cc: x86@kernel.org, Tom Lendacky , Andrew Cooper , Huang Rui , Juergen Gross , Dimitri Sivanich , Michael Kelley , Wei Liu , Pu Wen , Qiuxu Zhuo , Sohil Mehta , Gautham Shenoy References: <20230814085006.593997112@linutronix.de> <20230814085113.471353147@linutronix.de> <934072fe-eca2-44df-94e7-9fed1dc8b502@amd.com> <87r0nn8ots.ffs@tglx> <4a4d5a89-b024-ea49-8740-1f3aef412c15@amd.com> From: Arjan van de Ven In-Reply-To: <4a4d5a89-b024-ea49-8740-1f3aef412c15@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/28/2023 7:28 AM, K Prateek Nayak wrote: >> - Are these really different between AMD and Intel or is this some >> naming convention issue which needs to be resolved? > They do have different characteristics since, on Sapphire > Rapids, the LLC is at a socket boundary despite having multiple > tiles. (Please correct me if I'm wrong, I'm going off of > llc_id shared in this report by Qiuxu Zhuo - > https://lore.kernel.org/all/20230809161219.83084-1-qiuxu.zhuo@intel.com/) > Sapphire reports itself as 1 tile though (since logically it is) as far as I know