From patchwork Thu Jul 29 14:46:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 12408907 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=-3.8 required=3.0 tests=BAYES_00, 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 718CBC4320E for ; Thu, 29 Jul 2021 14:49:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 574B260F6F for ; Thu, 29 Jul 2021 14:49:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237459AbhG2Otw (ORCPT ); Thu, 29 Jul 2021 10:49:52 -0400 Received: from cloudserver094114.home.pl ([79.96.170.134]:44090 "EHLO cloudserver094114.home.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229864AbhG2Otu (ORCPT ); Thu, 29 Jul 2021 10:49:50 -0400 Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 3.0.0) id 0f8846d825f27bfa; Thu, 29 Jul 2021 16:49:45 +0200 Received: from kreacher.localnet (89-64-80-223.dynamic.chello.pl [89.64.80.223]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id 53D6A669F44; Thu, 29 Jul 2021 16:49:44 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PCI , Mika Westerberg Cc: Linux ACPI , Linux PM , LKML , Bjorn Helgaas , Kai-Heng Feng , Utkarsh H Patel , Koba Ko Subject: [PATCH v1 0/2] PCI: PM: Fix handling of device that can only signal PME from D3cold Date: Thu, 29 Jul 2021 16:46:27 +0200 Message-ID: <4668274.31r3eYUQgx@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 89.64.80.223 X-CLIENT-HOSTNAME: 89-64-80-223.dynamic.chello.pl X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvtddrheefgdegtdcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfjqffogffrnfdpggftiffpkfenuceurghilhhouhhtmecuudehtdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvufffkfgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdevgfetueetheekudeuvdduteelvefftdfftdejjeeukeffteeikefgiefghedunecuffhomhgrihhnpehkvghrnhgvlhdrohhrghenucfkphepkeelrdeigedrkedtrddvvdefnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepkeelrdeigedrkedtrddvvdefpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhrtghpthhtoheplhhinhhugidqphgtihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihhkrgdrfigvshhtvghrsggvrhhgsehlihhnuhigrdhinhhtvghlrdgtohhmpdhrtghpthhtoheplhhinhhugidqrggtphhisehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqphhmsehvghgvrhdrkhgvrhhnvghlrdhorhhg pdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohephhgvlhhgrggrsheskhgvrhhnvghlrdhorhhgpdhrtghpthhtohepkhgrihdrhhgvnhhgrdhfvghnghestggrnhhonhhitggrlhdrtghomhdprhgtphhtthhopehuthhkrghrshhhrdhhrdhprghtvghlsehinhhtvghlrdgtohhmpdhrtghpthhtohepkhhosggrrdhkohestggrnhhonhhitggrlhdrtghomh X-DCC--Metrics: v370.home.net.pl 1024; Body=9 Fuz1=9 Fuz2=9 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Hi, This series is a replacement for the following patch: https://patchwork.kernel.org/project/linux-pm/patch/3149540.aeNJFYEL58@kreacher/ allowing devices that only can signal PME from D3cold to be put into low-power states and signal wakeup from D3cold (if they get into it). However, the patch above works by adding a special case to pci_pme_capable() which actually is not necessary. Instead of doing that, it is sufficient to make pci_target_state() handle the case in which the device cannot signal PME from D0 consistently (patch [1/2] in this series) and make __pci_enable_wake() enable PM signaling for devices that can signal PME from D3cold (patch [2/2] in this series). Please see the patch changelogs for details. Thanks!