From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0E37B2C029F for ; Fri, 27 Feb 2026 09:26:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772184412; cv=none; b=jY4+HyVb1tBF8AJbw+OgyRWGtYVJium9/4a40xVJHirWg76QDuBZuFmOmj3AgIWYoZLyEq9EQWXjDEa60UvK6Bwrw67TNPe1QZGk4PN4gTTx0OH1j4aCv7HOHX+0Z/+7xyMmx2+kmIGH03Vtizs3D7bDRa5cQZf/BM59/5KPW8Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772184412; c=relaxed/simple; bh=mBQwU4HfuY9hLtMc+uEN1a3W16HebBPId91EMhnAVoo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=L1ceI+7KpphIxilwBTDyCgUh15grZg5xgJ4RD/BuqLLh7dHh+2U9fi/CuaKUg2jXREHuZyygekGEgZ08oxeV2CHwbS78z2f8mlQr8VL55ZnSDQvsbFlt5USifO8e7BPusvP+Dqiwngw62ItQ9QfVKTP31gjAT24OSO1wpAFNQpA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=np7Ij62o; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="np7Ij62o" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=mBQwU4HfuY9hLtMc+uEN1a3W16HebBPId91EMhnAVoo=; b=np7Ij62o1WboFnsb/qQCdTenjh +9bezUiD7Ymc4AO/BjqNyyZVfXf9dAy1HQyRJ5vEheUUP+OENb+VSX1lrWD75e5igan08/SAEymPD IZCdtgMVou3pVxziYMjzM7W03nZXLZLP93ue47vwRsB4HRKkj7pCPM/1qAZk0zRCNIVExxDKnPEMc TdrjtV3GpTCRFvaxbjddWCkLkUST/sABKny6uclscKoY1QG/EKb0ty6bdSpeU6hRq7l2tgqM2SS9w JIpamvQasyRc6WHrG5Fl8gTU2HTNLiDSgAbhGukFrVdI7oNfel6qbymfk0GJnkeGF1W89met50QR6 9Ps5TUSw==; Received: from 2001-1c00-8d85-5700-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:5700:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvu7M-00000004KVZ-1LxQ; Fri, 27 Feb 2026 09:26:40 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id D577F301BD5; Fri, 27 Feb 2026 10:26:38 +0100 (CET) Date: Fri, 27 Feb 2026 10:26:38 +0100 From: Peter Zijlstra To: "Luck, Tony" Cc: x86@kernel.org, tglx@kernel.org, linux-kernel@vger.kernel.org, tim.c.chen@linux.intel.com, yu.c.chen@intel.com, kyle.meyer@hpe.com, vinicius.gomes@intel.com, brgerst@gmail.com, hpa@zytor.com, kprateek.nayak@amd.com, patryk.wlazlyn@linux.intel.com, rafael.j.wysocki@intel.com, russ.anderson@hpe.com, zhao1.liu@intel.com Subject: Re: [RFC][PATCH 6/6] x86/resctrl: Fix SNC detection Message-ID: <20260227092638.GD606826@noisy.programming.kicks-ass.net> References: <20260226104909.675623579@infradead.org> <20260226105052.852170114@infradead.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Feb 26, 2026 at 12:47:41PM -0800, Luck, Tony wrote: > I think this resctrl patch should look like this: Ah, great. I was a little heavy on the delete button indeed. Also, I hope you told the RDT guys what you think about being required to know the SNC number, but them not providing it anywhere ;-)