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 X-Spam-Level: * X-Spam-Status: No, score=1.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_MUTT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C849C282CE for ; Wed, 22 May 2019 20:44:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 33AA221473 for ; Wed, 22 May 2019 20:44:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558557877; bh=u0vpqjRZCfZ1yomtUly1mF+4+X+k+4EtxlV6xG0hkYM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=zM7svF8oCo5/jWmaabzIdjj3HxOlVEIWMhx+C16hyB+GiRZcYnswds9TBmQ6tUuuC xbZGl5bnf2zNFexErIO66BwwEZCut8duSbu3/q95wTNtHDyGIKuurp51NlSSTJAgmz bP7BCvDxMBD5Mkb13vIUP/l3bzRPt0qjTqAc6Nck= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730164AbfEVUog (ORCPT ); Wed, 22 May 2019 16:44:36 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:55292 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729844AbfEVUof (ORCPT ); Wed, 22 May 2019 16:44:35 -0400 Received: by mail-wm1-f68.google.com with SMTP id i3so3541138wml.4 for ; Wed, 22 May 2019 13:44:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=S0ra+vNdOv3/9V7VGWXOVC+dvXqsahGY6CcRP5lsiNE=; b=f9XaVUuchVtyI1LFsaB2lIJMGKQ8MmptzCbg/PGOPHcIVBvLiC0xUCbsJ4KIURUG+c boeL7Yz/ZLdU6t+f3IrkmyBBY3jCshR8atJPYUctZoTUomiDUjfOd3v5w3IwfuoCF6mZ GOw3veVPVJNR/CukN0z0A9WyQczNcYvO+6sLaO31bwYUe9bJMe+zOL71kIwNv1tN+S+s 4sq9eITKDsGGeqOhIlhK5q5NXIb0YkCOZcY+vRlNAaYPSLsvkRlSngj4I4Ef9fsCbs7g hqwEhSbhHRYPCBzhUvTAd2TjyZzf+xCaxwvebnHwIB9xiyJkDWY1dxFIAi+wrNbYyxCx sQbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=S0ra+vNdOv3/9V7VGWXOVC+dvXqsahGY6CcRP5lsiNE=; b=HQwBrcCsji4nB34U3FwN7pU0+suh55gxphhq24Ofc+Ktz/LEw7Ut8bhhhyRJLoWzDC FgZ0qn7ZdhphfLvI7O8svItCa3BfTPH3iTDcqanJewcB+XOS60DzAhJKN8xRD8TfarUz q+vTnYfVgEeFvzUDtVIlsLWGJrsWRxpyXdTgTMG341iwCWHHzeL7f3Qm6RL83yDw5ESK vM1biECEA7rGgD4vpvERyRspXEJnkhEVWaXCx9hWDVW9P/sWxP7/KNl3PyGF8EdsGB+Z k0JqvpPtu0pCTlT/5AHu0zlKbayGuWr6Lpe4pB+L/JK3CherhpIKLVkBa1X3RJQnqbx1 h2mw== X-Gm-Message-State: APjAAAWh7WbKTvTdBLrXM4Pp9ld2wT3AUhmBbraUlqDvQK7d5s0WCNKg OwNciHI7eJlp7bIEPxU51Wo= X-Google-Smtp-Source: APXvYqz5Z7YzrxRoncvYEdf+W2IrIxTCI8BxGMTdNdj2FzG0H8YWcsHQySKsRboZFH7R8MEcrv7ZLg== X-Received: by 2002:a1c:7511:: with SMTP id o17mr8426905wmc.39.1558557874006; Wed, 22 May 2019 13:44:34 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id a5sm22867571wrt.10.2019.05.22.13.44.32 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 22 May 2019 13:44:33 -0700 (PDT) Date: Wed, 22 May 2019 22:44:31 +0200 From: Ingo Molnar To: Len Brown Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [PATCH 0/19] v6 multi-die/package topology support Message-ID: <20190522204431.GA18891@gmail.com> References: <20190513175903.8735-1-lenb@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190513175903.8735-1-lenb@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Len Brown wrote: > > This patch series does 4 things. > > 1. Parse the new CPUID.1F leaf to discover multi-die/package topology > > 2. Export multi-die topology inside the kernel > > 3. Update 4 places (coretemp, pkgtemp, rapl, perf) that that need to know > the difference between die and package-scope MSR. > > 4. Export multi-die topology to user-space via sysfs > > These changes should have no impact on cache topology, > NUMA topology, Linux scheduler, or system performance. Thank you Len: Reviewed-by: Ingo Molnar Ingo