From patchwork Thu May 5 18:04:07 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: 12839986 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 76C2DC4332F for ; Thu, 5 May 2022 18:31:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378637AbiEESdu (ORCPT ); Thu, 5 May 2022 14:33:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1385340AbiEESaW (ORCPT ); Thu, 5 May 2022 14:30:22 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C77C5D644; Thu, 5 May 2022 11:21:01 -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 27807f26a92f6163; Thu, 5 May 2022 20:19:40 +0200 Received: from kreacher.localnet (unknown [213.134.161.219]) (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 D246266C2F5; Thu, 5 May 2022 20:19:39 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PCI Cc: LKML , Linux PM , Mika Westerberg , Bjorn Helgaas , Nathan Chancellor , Anders Roxell Subject: [PATCH v1 03/11] PCI/PM: Set current_state to D3cold if the device is not accessible Date: Thu, 05 May 2022 20:04:07 +0200 Message-ID: <10104376.nUPlyArG6x@kreacher> In-Reply-To: <4738492.GXAFRqVoOG@kreacher> References: <4738492.GXAFRqVoOG@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 213.134.161.219 X-CLIENT-HOSTNAME: 213.134.161.219 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvfedrfedugdduvdduucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdffueeitdfgvddtudegueejtdffteetgeefkeffvdeftddttdeuhfegfedvjefhnecukfhppedvudefrddufeegrdduiedurddvudelnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepvddufedrudefgedrudeiuddrvdduledphhgvlhhopehkrhgvrggthhgvrhdrlhhotggrlhhnvghtpdhmrghilhhfrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqedpnhgspghrtghpthhtohepjedprhgtphhtthhopehlihhnuhigqdhptghisehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqphhmsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepmhhikhgrrdifvghsthgvrhgsvghrgheslhhinhhugidrihhnthgv lhdrtghomhdprhgtphhtthhopehhvghlghgrrghssehkvghrnhgvlhdrohhrghdprhgtphhtthhopehnrghthhgrnheskhgvrhhnvghlrdhorhhgpdhrtghpthhtoheprghnuggvrhhsrdhrohigvghllheslhhinhgrrhhordhorhhg X-DCC--Metrics: v370.home.net.pl 1024; Body=7 Fuz1=7 Fuz2=7 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Rafael J. Wysocki Make pci_power_up() and pci_set_low_power_state() change current_state to PCI_D3cold when the device is not accessible along the lines of pci_update_current_state(). Signed-off-by: Rafael J. Wysocki --- drivers/pci/pci.c | 2 ++ 1 file changed, 2 insertions(+) Index: linux-pm/drivers/pci/pci.c =================================================================== --- linux-pm.orig/drivers/pci/pci.c +++ linux-pm/drivers/pci/pci.c @@ -1207,6 +1207,7 @@ int pci_power_up(struct pci_dev *dev) if (PCI_POSSIBLE_ERROR(pmcsr)) { pci_err(dev, "Unable to change power state from %s to D0, device inaccessible\n", pci_power_name(dev->current_state)); + dev->current_state = PCI_D3cold; return -EIO; } @@ -1335,6 +1336,7 @@ static int pci_set_low_power_state(struc pci_err(dev, "Unable to change power state from %s to %s, device inaccessible\n", pci_power_name(dev->current_state), pci_power_name(state)); + dev->current_state = PCI_D3cold; return -EIO; }