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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 53CC4C433E0 for ; Sat, 30 May 2020 07:14:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23C6C20776 for ; Sat, 30 May 2020 07:14:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=codon.org.uk header.i=@codon.org.uk header.b="BHvgUipI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728714AbgE3HOi (ORCPT ); Sat, 30 May 2020 03:14:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728706AbgE3HOi (ORCPT ); Sat, 30 May 2020 03:14:38 -0400 Received: from cavan.codon.org.uk (cavan.codon.org.uk [IPv6:2a00:1098:0:80:1000:c:0:1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D03EC03E969; Sat, 30 May 2020 00:14:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=codon.org.uk; s=63138784; 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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZKz6Gh5B/FyuNnlTtHvlixH1OMFB7AquS2nmY6o/Y50=; b=BHvgUipI0Cnif/Fqf4vOC/1bK UtRrkvHDKBL9JRnkgTiYIrxDMEpQNzCzrWRvPGCustRjJbO8k3cqgK5DBYN1tynYSwe0TTpIpgLDi K2IZgabTR4YSUmo5Z8qC/gCBFmzNckQvmhK5sAhmZp2akhKzuTI4HRE2ZkRhr1kNIu230=; Received: from mjg59 by cavan.codon.org.uk with local (Exim 4.89) (envelope-from ) id 1jevhS-0007iw-Ms; Sat, 30 May 2020 08:14:34 +0100 Date: Sat, 30 May 2020 08:14:34 +0100 From: Matthew Garrett To: Heiner Kallweit Cc: Bjorn Helgaas , Bjorn Helgaas , "Rafael J. Wysocki" , "linux-pci@vger.kernel.org" , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: Re: Lost PCIe PME after a914ff2d78ce ("PCI/ASPM: Don't select CONFIG_PCIEASPM by default") Message-ID: <20200530071434.vjkqxfmgo7xpls6j@srcf.ucam.org> References: <20200529202135.GA461617@bjorn-Precision-5520> <20200529205900.whx3mxuvt6ijlqwg@srcf.ucam.org> <824d63d8-668c-22c8-a303-b44e30e805e1@gmail.com> <20200529225801.szl4obsas6ndilz4@srcf.ucam.org> <7c8cab08-e2d4-1952-1923-aa023ea67657@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7c8cab08-e2d4-1952-1923-aa023ea67657@gmail.com> User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Sat, May 30, 2020 at 08:33:50AM +0200, Heiner Kallweit wrote: > It *was* default y. This changed with a914ff2d78ce ("PCI/ASPM: Don't > select CONFIG_PCIEASPM by default") and that's what triggered the > problem. If there's no easy solution, then maybe it's best to revert > the change for now. Oh, sorry, I was looking at mainline. CONFIG_PCIEASPM should *definitely* be enabled by default - platforms expect the OS to support it. If we want to get rid of default y then I think it'd make more sense to have a CONFIG_DISABLE_PCIEASPM that's under EXPERT, and people who really want to disable the code can do so. -- Matthew Garrett | mjg59@srcf.ucam.org