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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 50C5FC433DF for ; Wed, 20 May 2020 17:43:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2178C20709 for ; Wed, 20 May 2020 17:43:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Il+/zPYl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726650AbgETRn5 (ORCPT ); Wed, 20 May 2020 13:43:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726619AbgETRn5 (ORCPT ); Wed, 20 May 2020 13:43:57 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45BB9C061A0E; Wed, 20 May 2020 10:43:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=72/myqImacqZvgA/Df7tM4W80PT1FO6/o07rXUy1dH4=; b=Il+/zPYl2NlqSMAoFu30IRTSjY qAqRcgvOOfLXUpfM5ePlyGF7j7lXgyyJ6SErXmiH99NPFl8224Hm4TrNU3wuvVeB8D0LuWGrzrqTo 2Dj43BzPzcBSwFmJIQh0R/aS8xpR9Xxx0AYNNLl+gIrYiwKG1SSa6zGkMnqhBCjVpY/w3y7N4Q0P/ 478g/Q9fVjPXKiE/9mk6LOfAjwqXCn5StnSrQPrD62zl/F9E/9dqM6W7TJWeAvXXppdbOs8eKuGRL V2gS68V4zL+xtZD2BakQcJNwY51dpW5jre6H6jGAf00+EwGtIVhg2oeIH+DcXI7HbrMLrmmsLzTXg SSHCH04Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbSl2-0000AA-DN; Wed, 20 May 2020 17:43:56 +0000 Date: Wed, 20 May 2020 10:43:56 -0700 From: Christoph Hellwig To: Sean V Kelley Cc: bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V2 3/3] PCI: Add helpers to enable/disable CXL.mem and CXL.cache Message-ID: <20200520174356.GA26878@infradead.org> References: <20200518163523.1225643-1-sean.v.kelley@linux.intel.com> <20200518163523.1225643-4-sean.v.kelley@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200518163523.1225643-4-sean.v.kelley@linux.intel.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Mon, May 18, 2020 at 09:35:23AM -0700, Sean V Kelley wrote: > With these helpers, a device driver can enable/disable access to > CXL.mem and CXL.cache. Note that the device driver is responsible for > managing the memory area. Who is going to call these? Please don't submit new APIs without users.