From patchwork Mon Apr 4 15:38:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 12800501 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12029C4332F for ; Mon, 4 Apr 2022 15:42:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378653AbiDDPoi (ORCPT ); Mon, 4 Apr 2022 11:44:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347003AbiDDPoh (ORCPT ); Mon, 4 Apr 2022 11:44:37 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F11143EAA7; Mon, 4 Apr 2022 08:42:40 -0700 (PDT) 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 5.0.0) id 010ffbb855258a31; Mon, 4 Apr 2022 17:42:39 +0200 Received: from kreacher.localnet (unknown [213.134.181.62]) (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 A7E7066BCD3; Mon, 4 Apr 2022 17:42:38 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PCI Cc: Linux PM , LKML , Bjorn Helgaas , Mika Westerberg Subject: [PATCH v1 0/2]: PCI: PM: Improvements related to D3cold -> D0 transitions Date: Mon, 04 Apr 2022 17:38:58 +0200 Message-ID: <4198163.ejJDZkT8p0@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 213.134.181.62 X-CLIENT-HOSTNAME: 213.134.181.62 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvvddrudejvddgkeejucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffufffkggfgtgesthfuredttddtjeenucfhrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqeenucggtffrrghtthgvrhhnpefhgedtffejheekgeeljeevvedtuefgffeiieejuddutdekgfejvdehueejjeetvdenucfkphepvddufedrudefgedrudekuddriedvnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepvddufedrudefgedrudekuddriedvpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopeehpdhrtghpthhtoheplhhinhhugidqphgtihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhpmhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehhvghlghgrrghssehkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihhkrgdr figvshhtvghrsggvrhhgsehlihhnuhigrdhinhhtvghlrdgtohhm X-DCC--Metrics: v370.home.net.pl 1024; Body=5 Fuz1=5 Fuz2=5 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Hi All, This series of two patches addresses potential issues related to transitions of PCI devices from D3cold to D0. The first one is that devices initially in D3cold may be left in D0-uninitialized by pci_power_up() in some cases and the second one is that attempting to resume PCI devices under a bridge that fails to go from D3cold to D0 is pointless. Please refer to the patch changelogs for details. Thanks!