From patchwork Mon Oct 22 20:32:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Zwisler X-Patchwork-Id: 10652471 X-Patchwork-Delegate: rui.zhang@intel.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9AF0713B5 for ; Mon, 22 Oct 2018 20:32:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AB29E2905C for ; Mon, 22 Oct 2018 20:32:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9FB53290A2; Mon, 22 Oct 2018 20:32:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 392432905C for ; Mon, 22 Oct 2018 20:32:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726166AbeJWEw2 (ORCPT ); Tue, 23 Oct 2018 00:52:28 -0400 Received: from mail-qt1-f202.google.com ([209.85.160.202]:52017 "EHLO mail-qt1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728748AbeJWEw1 (ORCPT ); Tue, 23 Oct 2018 00:52:27 -0400 Received: by mail-qt1-f202.google.com with SMTP id w5-v6so13790777qto.18 for ; Mon, 22 Oct 2018 13:32:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=qBkcULrk24lGYqTEeJPSqpxDS/GL/T8SH7WD8YBNpus=; b=EI2qS340NBQET5Mg5nPhP4aVB2ya2DI6ZnTdAQBQRROnGzihSXYVl9NGcOp51g+w1Q 16wCHIv1TtcHHFUzffZP0mrcMsomH02bIUPQM4cd4IWH1/EpoyQPCUNYybTQLt9UOtBk WFjhk6o50sbI43ObRR9uS/krPjeQNKJjIV3lAztiDMZYTFP0ofxj/gkG9dy5bZpxdTDT x7BjhrlJpAakuVwUHNXQBkSl2LmRgSrtHnbSg9As62BFNsc9CFbhRq/BIRNKSWKLjpL3 9EwiWk+WKYQVAAuTvbyCt+UTiwAyEsewQ58XZo1+VoYAvVauyHu4uByEqWR6vIpYE2KW BX4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=qBkcULrk24lGYqTEeJPSqpxDS/GL/T8SH7WD8YBNpus=; b=gnsgdNFDdchIIM1AQZ+P1bMXFWyrOsS6E4V2g2HNd/lzlpF+rj+Z3dcIXYSsfDJCpi i0FYDPbJmGx6Uy2sPYnl7SS2ph+nNHeylMh7tkQkHqd3uzHXAIDWFieAEtgH59KI6+gB 6KPGpVIKEC4EshhhPiUAHC7JpZUSu4rJTd49WTB1/l1jwuVSfGptLBgXe+Hi2BogBtbV KDof2kqOt1TGE0sN//n/tNqU4msIW0NSNFI6ZRdhInQPcon3Yn6z2FFgPqT2H+etbtSE zEAOiYB4K+4TQhlRqNGisnioJD0vtdSyMibbUfUSF8cUhckSvMBP6abg0nYhIFJowP/L XKHQ== X-Gm-Message-State: ABuFfoiIDsRBmIFXc1i9jLAU7ouM8BE1yG0kDXJibxr65R4RJ3J3E/RN jsY6iiHyEnU7XGJrcEstwnTHYrmONlsZ X-Google-Smtp-Source: ACcGV61oElCFzWpPPkjREg2GM1wmlI1Gbr81pf8+hAHR1llM3hQRmpJ9y8EnQ6g/yPd7uYRlDqzL4DDYdNLx X-Received: by 2002:ac8:6993:: with SMTP id o19-v6mr11319241qtq.35.1540240345255; Mon, 22 Oct 2018 13:32:25 -0700 (PDT) Date: Mon, 22 Oct 2018 14:32:18 -0600 In-Reply-To: <20181022203218.7007-1-zwisler@google.com> Message-Id: <20181022203218.7007-2-zwisler@google.com> Mime-Version: 1.0 References: <20181022203218.7007-1-zwisler@google.com> X-Mailer: git-send-email 2.19.1.568.g152ad8e336-goog Subject: [PATCH 2/2] gsmi: Log event for critical thermal thresholds From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Duncan Laurie , Daniel Lezcano , Eduardo Valentin , Zhang Rui , linux-pm@vger.kernel.org, Ross Zwisler Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Duncan Laurie This registers a notifier for the new thermal notifier introduced in a previous commit and logs a kernel shutdown event when the notifier is called for crossing the THERMAL_TRIP_CRITICAL threshold. To test: 1) Modify critical shutdown threshold in the BIOS 2) Generate a load on the system to increase temperature 3) Wait until system powers off 4) Power back on and read the event log: 4 | 2012-07-18 10:47:02 | Kernel Event | Critical Thermal Threshold 5 | 2012-07-18 10:47:06 | Kernel Event | Clean Shutdown 6 | 2012-07-18 10:47:06 | ACPI Enter | S5 Signed-off-by: Duncan Laurie Reviewed-by: Vincent Palatin Reviewed-by: Olof Johansson [ rez: updated changelog for upstream ] Signed-off-by: Ross Zwisler --- drivers/firmware/google/gsmi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c index c8f169bf2e27d..ee0c611b83e99 100644 --- a/drivers/firmware/google/gsmi.c +++ b/drivers/firmware/google/gsmi.c @@ -29,6 +29,7 @@ #include #include #include +#include #define GSMI_SHUTDOWN_CLEAN 0 /* Clean Shutdown */ /* TODO(mikew@google.com): Tie in HARDLOCKUP_DETECTOR with NMIWDT */ @@ -40,6 +41,7 @@ #define GSMI_SHUTDOWN_SOFTWDT 6 /* Software Watchdog */ #define GSMI_SHUTDOWN_MBE 7 /* Uncorrected ECC */ #define GSMI_SHUTDOWN_TRIPLE 8 /* Triple Fault */ +#define GSMI_SHUTDOWN_THERMAL 9 /* Critical Thermal Threshold */ #define DRIVER_VERSION "1.0" #define GSMI_GUID_SIZE 16 @@ -670,6 +672,18 @@ static struct notifier_block gsmi_panic_notifier = { .notifier_call = gsmi_panic_callback, }; +static int gsmi_thermal_callback(struct notifier_block *nb, + unsigned long reason, void *arg) +{ + if (reason == THERMAL_TRIP_CRITICAL) + gsmi_shutdown_reason(GSMI_SHUTDOWN_THERMAL); + return NOTIFY_DONE; +} + +static struct notifier_block gsmi_thermal_notifier = { + .notifier_call = gsmi_thermal_callback +}; + /* * This hash function was blatantly copied from include/linux/hash.h. * It is used by this driver to obfuscate a board name that requires a @@ -892,6 +906,7 @@ static __init int gsmi_init(void) goto out_remove_sysfs_files; } + register_thermal_notifier(&gsmi_thermal_notifier); register_reboot_notifier(&gsmi_reboot_notifier); register_die_notifier(&gsmi_die_notifier); atomic_notifier_chain_register(&panic_notifier_list, @@ -918,6 +933,7 @@ static __init int gsmi_init(void) static void __exit gsmi_exit(void) { + unregister_thermal_notifier(&gsmi_thermal_notifier); unregister_reboot_notifier(&gsmi_reboot_notifier); unregister_die_notifier(&gsmi_die_notifier); atomic_notifier_chain_unregister(&panic_notifier_list,