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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 2D048C10F0E for ; Thu, 18 Apr 2019 18:01:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F2D64218A1 for ; Thu, 18 Apr 2019 18:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555610501; bh=Yd483WQDUOqCEWr1PfMoQRdh+X9xT1n4LNNnaBSLP5k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Yn6ntIXzPQMgkXjxk5kRGh775KowWI1h6na2E63KB/uBm9rOpZB9NoiXQphDwY0Mc nKarWDH09C17du5GFEaW2TjGxTDEg2K7AQ4o/qeczpzomG+LXo7AI6IB+upEwI+4RZ ihb4smlvVs5ykaDxQj+LLAmkWmXIT2CnO+U2nEPU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390602AbfDRSBj (ORCPT ); Thu, 18 Apr 2019 14:01:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:57378 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390589AbfDRSBg (ORCPT ); Thu, 18 Apr 2019 14:01:36 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 58FC5217FA; Thu, 18 Apr 2019 18:01:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555610495; bh=Yd483WQDUOqCEWr1PfMoQRdh+X9xT1n4LNNnaBSLP5k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MWeRNYJGCrIVxwbtk5TCFQcCO7EFgboq5+c8TiQ2WQ+CIL6VDjp+z7CxuUCYfxfb4 B0JGERnKhUZYC4SWU+9vk7/HEEf6pw2VJ9X11HUnJTaVTK2Pwl/2WvTI1ePFOHyV0T mcpMBxDNlMc2JplAnUDCjEFEQi8pdzHAcXA0bZ7c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhang Rui , Mika Westerberg , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 4.19 082/110] ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle Date: Thu, 18 Apr 2019 19:57:11 +0200 Message-Id: <20190418160445.865813857@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190418160437.484158340@linuxfoundation.org> References: <20190418160437.484158340@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit f941d3e41da7f86bdb9dcc1977c2bcc6b89bfe47 ] There are systems in which non-wakeup GPEs fire during the "noirq" suspend stage of suspending devices and that effectively prevents the system that tries to suspend to idle from entering any low-power state at all. If the offending GPE fires regularly and often enough, the system appears to be suspended, but in fact it is in a tight loop over "noirq" suspend and "noirq" resume of devices all the time. To prevent that from happening, disable all non-wakeup GPEs except for the EC GPE for suspend-to-idle (the EC GPE is special, because on some systems it has to be enabled for power button wakeup events to be generated as expected). Fixes: 147a7d9d25ca (ACPI / PM: Do not reconfigure GPEs for suspend-to-idle) Link: https://bugzilla.kernel.org/show_bug.cgi?id=201987 Reported-by: Zhang Rui Tested-by: Mika Westerberg Tested-by: Zhang Rui Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/ec.c | 12 ++++++++++++ drivers/acpi/internal.h | 2 ++ drivers/acpi/sleep.c | 11 +++++++++++ 3 files changed, 25 insertions(+) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index d4e5610e09c5..9d66a47d32fb 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1034,6 +1034,18 @@ void acpi_ec_unblock_transactions(void) acpi_ec_start(first_ec, true); } +void acpi_ec_mark_gpe_for_wake(void) +{ + if (first_ec && !ec_no_wakeup) + acpi_mark_gpe_for_wake(NULL, first_ec->gpe); +} + +void acpi_ec_set_gpe_wake_mask(u8 action) +{ + if (first_ec && !ec_no_wakeup) + acpi_set_gpe_wake_mask(NULL, first_ec->gpe, action); +} + void acpi_ec_dispatch_gpe(void) { if (first_ec) diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 530a3f675490..f59d0b9e2683 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -188,6 +188,8 @@ int acpi_ec_ecdt_probe(void); int acpi_ec_dsdt_probe(void); void acpi_ec_block_transactions(void); void acpi_ec_unblock_transactions(void); +void acpi_ec_mark_gpe_for_wake(void); +void acpi_ec_set_gpe_wake_mask(u8 action); void acpi_ec_dispatch_gpe(void); int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle, acpi_ec_query_func func, diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 754d59f95500..74c489047f57 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -940,6 +940,8 @@ static int lps0_device_attach(struct acpi_device *adev, acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n", bitmask); + + acpi_ec_mark_gpe_for_wake(); } else { acpi_handle_debug(adev->handle, "_DSM function 0 evaluation failed\n"); @@ -968,11 +970,16 @@ static int acpi_s2idle_prepare(void) if (lps0_device_handle) { acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF); acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY); + + acpi_ec_set_gpe_wake_mask(ACPI_GPE_ENABLE); } if (acpi_sci_irq_valid()) enable_irq_wake(acpi_sci_irq); + /* Change the configuration of GPEs to avoid spurious wakeup. */ + acpi_enable_all_wakeup_gpes(); + acpi_os_wait_events_complete(); return 0; } @@ -1017,10 +1024,14 @@ static void acpi_s2idle_sync(void) static void acpi_s2idle_restore(void) { + acpi_enable_all_runtime_gpes(); + if (acpi_sci_irq_valid()) disable_irq_wake(acpi_sci_irq); if (lps0_device_handle) { + acpi_ec_set_gpe_wake_mask(ACPI_GPE_DISABLE); + acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT); acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON); } -- 2.19.1