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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 530D3C33C9E for ; Fri, 17 Jan 2020 23:04:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1C09D21D56 for ; Fri, 17 Jan 2020 23:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579302247; bh=AZ7s+k9KLzB07bRhwmj5WpNU+WuRezIfV1WCiWED0ic=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=FsDac2amOpZO3jIiU5bWteZOhZA0/+enQHPvJ+FbvS2Kk4/Xkzzu46RwunBTToA9k gkrhnJaMSI6GwjkmhW7Yf+dpYZc6GKh2RSN06V2/dq1K/cVPuIOXSxxzgCEmM+276j djQeam23L1KN6j7JgMFdJD13jqPIwKj71jqz2sUQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730035AbgAQXEF (ORCPT ); Fri, 17 Jan 2020 18:04:05 -0500 Received: from new2-smtp.messagingengine.com ([66.111.4.224]:49581 "EHLO new2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729099AbgAQXEF (ORCPT ); Fri, 17 Jan 2020 18:04:05 -0500 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id 744C4585E; Fri, 17 Jan 2020 18:04:02 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 17 Jan 2020 18:04:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=5quz/s XDX8o8ICPwUpRb3ta3WYQ721Mtd7frfvTaU00=; b=gArZ7YMl0/16hrDswrK6K4 Oj1/8tYUm8W6ZSIHSp2E272yRYtNDil2/b+Zl1uR0y2yDMLrKFPfaIz8cwNw0TCe /QXpv9G/bdVH1qnM7kVEXHVEB6BF3GEAtGZlwTvKPTLM9m7/cuJacUwm8/jnLde6 oake1xaY2Rd/fo94DOsXuyv3mOfstgSaUr5Orj2lRAOwhcYHMyPdNxU5WPKmh3ZY zIIWtfx7pmMhjAkFxQsAkBsGqTpN4gD5/qko0JEam5s1fwPyMthWyik0V2YBeBqB FuMd452qavUFwglnUYWUebwh8+kbfb6nzXVUa05WJYsnVhxzzYI696iuFAW22McA == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrtdelgddthecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpeffhffvuffkfhggtggujgesthdtredttddtvdenucfhrhhomhepifhrvghgucfm jfcuoehgrhgvghhkhheslhhinhhugidqfhhouhhnuggrthhiohhnrdhorhhgqeenucfkph epkeefrdekiedrkeelrddutdejnecurfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvghes khhrohgrhhdrtghomhenucevlhhushhtvghrufhiiigvpedt X-ME-Proxy: Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) by mail.messagingengine.com (Postfix) with ESMTPA id 10A2E80063; Fri, 17 Jan 2020 18:04:01 -0500 (EST) Date: Sat, 18 Jan 2020 00:03:56 +0100 From: Greg KH To: Andi Kleen Cc: roman.sudarikov@linux.intel.com, peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, eranian@google.com, bgregg@netflix.com, kan.liang@linux.intel.com, alexander.antonov@intel.com Subject: Re: [PATCH v4 2/2] perf =?iso-8859-1?Q?x86?= =?iso-8859-1?Q?=3A_Exposing_an_Uncore_unit_to_PMON_for_Intel_Xeon?= =?iso-8859-1?Q?=AE?= server platform Message-ID: <20200117230356.GA2093716@kroah.com> References: <20200117133759.5729-1-roman.sudarikov@linux.intel.com> <20200117133759.5729-3-roman.sudarikov@linux.intel.com> <20200117141944.GC1856891@kroah.com> <20200117162357.GK302770@tassilo.jf.intel.com> <20200117165406.GA1937954@kroah.com> <20200117172726.GM302770@tassilo.jf.intel.com> <20200117184249.GB1969121@kroah.com> <20200117191220.GN302770@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200117191220.GN302770@tassilo.jf.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 17, 2020 at 11:12:20AM -0800, Andi Kleen wrote: > > > pmon0-3: list of pci busses indexed by die > > > > > > To be honest the approach doesn't seem unreasonable to me. It's similar > > > e.g. how we express lists of cpus or nodes in sysfs today. > > > > Roman, > > I suppose you'll need something like > > /sys/device/system/dieXXX/pci-pmon<0-3>/bus > > and bus could be a symlink to the pci bus directory. Why do you need to link to the pci bus directory? > The whole thing will be ugly and complicated and slow and difficult > to parse, but it will presumably follow Greg's rules. Who needs to parse this? What tool will do it and for what? greg k-h