From patchwork Wed Mar 9 22:39:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 550256 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 DA2F4C433FE for ; Wed, 9 Mar 2022 22:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238789AbiCIWkx (ORCPT ); Wed, 9 Mar 2022 17:40:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233941AbiCIWkx (ORCPT ); Wed, 9 Mar 2022 17:40:53 -0500 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CF95121503 for ; Wed, 9 Mar 2022 14:39:53 -0800 (PST) Received: by mail-lf1-x12b.google.com with SMTP id s25so6289935lfs.10 for ; Wed, 09 Mar 2022 14:39:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=soWKcqKpCVRBynURRotS1gzCb/Cc5Zuwi5TpQP3/+YY=; b=nAHZOAvhvsOkFTRcc8CDRqLyHOCiyOM7lSEvnltXotHrdt4R4+nGsG+cfw5ahZxODy 1gzbtYVM+IGCobQQTYwQm6zmBQA536wJTdugCWLgXxzpXyZOJpak1VrOcJXOK9AuHLkN 9y7cMN1w4TtqHjQ+Pq7920CaxJlnRiij1r7+9HFrbxvGrj801xwOugolabb5XO51vdzx uv0w+ZlNZwOFFcn893vDPYFzcyNbRZ0jVA97WUZnOvw58/dKcH/fXTvONNNZSZlymptN 2qybJ0b2Upbk51bXiXV+YG8UItC0XdKoub+BpBcoursp+C6xGpr/HxWUC6iVOLncti1c dHtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=soWKcqKpCVRBynURRotS1gzCb/Cc5Zuwi5TpQP3/+YY=; b=XkYH17cej/n9PH6bcGRSVWiVY8FbVqXp0WS0We7KdkbbPDwMuktb2QFhN6upwBJh+y uhim8CIjUqatBnK2/QQ6HaOJQ6rzXjnGcppEXjW4KvlmbKzg3vOI75UbtsbQ2UnEZuXo iJlnhM4o9MIYian8sGizDsuJr0poNJftX7C7HoYsEayrRN1ODTU5bqCFZDdWYoEzSbXk ENctu5XgheozrR3sTk6aYpmwL6VNYeLLuOxniZVEKep+IMRVHIPPikz0mHRU70hWqUoW y0IQHGZ9pV0jwmJDIUs4O34tgbSgZsIbMDFVDJCmU2aoJNqbSAoR0XQW/maKiPMH7x6n EE8w== X-Gm-Message-State: AOAM532Mj8A3uCJv20pYD2OFxVhQyFgOZ+kQ/CNTCOoU+xpPzYmM4dSf rm1EfzrBWTyWd5N/A1M2+Sd+jw== X-Google-Smtp-Source: ABdhPJykeVFKtAdF5RQ8I2WfOOkNWg8NsUOWFKa2u8g4LToyYksEZkKdZAKQ82dPcccFepg6STgP3g== X-Received: by 2002:a05:6512:1319:b0:448:429d:c6f4 with SMTP id x25-20020a056512131900b00448429dc6f4mr1189751lfu.472.1646865591430; Wed, 09 Mar 2022 14:39:51 -0800 (PST) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id b24-20020a196458000000b004483734e0afsm621036lfj.12.2022.03.09.14.39.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Mar 2022 14:39:50 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , "Rafael J. Wysocki" , Viresh Kumar Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, Thara Gopinath Subject: [PATCH v2 1/4] cpufreq: qcom-hw: drop affinity hint before freeing the IRQ Date: Thu, 10 Mar 2022 01:39:35 +0300 Message-Id: <20220309223938.3819715-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220309223938.3819715-1-dmitry.baryshkov@linaro.org> References: <20220309223938.3819715-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Drop affinity hint before freeing the throttling IRQ to fix the following trace. One is not allowed to call free_irq() with an affinity hint in place (which was set by qcom_cpufreq_hw_lmh_init()). [ 185.114773] ------------[ cut here ]------------ [ 185.119517] WARNING: CPU: 7 PID: 43 at kernel/irq/manage.c:1887 free_irq+0x3a4/0x3dc [ 185.127474] Modules linked in: [ 185.130618] CPU: 7 PID: 43 Comm: cpuhp/7 Tainted: G S W 5.17.0-rc6-00386-g67382a5b705d-dirty #690 [ 185.147125] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 185.154269] pc : free_irq+0x3a4/0x3dc [ 185.158031] lr : free_irq+0x33c/0x3dc [ 185.161792] sp : ffff80000841bc90 [ 185.165195] x29: ffff80000841bc90 x28: ffffa6edc5c3d000 x27: ffff6d93729e5908 [ 185.172515] x26: 0000000000000000 x25: ffff6d910109fc00 x24: ffff6d91011490e0 [ 185.179838] x23: ffff6d9101149218 x22: 0000000000000080 x21: 0000000000000000 [ 185.187163] x20: ffff6d9101149000 x19: ffff6d910ab61500 x18: ffffffffffffffff [ 185.194487] x17: 2e35202020202020 x16: 2020202020202020 x15: ffff80008841b9a7 [ 185.201805] x14: 00000000000003c9 x13: 0000000000000001 x12: 0000000000000040 [ 185.209135] x11: ffff6d91005aab58 x10: ffff6d91005aab5a x9 : ffffc6a5ad1c5408 [ 185.216455] x8 : ffff6d91005adb88 x7 : 0000000000000000 x6 : ffffc6a5ab5a91f4 [ 185.223776] x5 : 0000000000000000 x4 : ffff6d91011490a8 x3 : ffffc6a5ad266108 [ 185.231098] x2 : 0000000013033204 x1 : ffff6d9101149000 x0 : ffff6d910a9cc000 [ 185.238421] Call trace: [ 185.240932] free_irq+0x3a4/0x3dc [ 185.244334] qcom_cpufreq_hw_cpu_exit+0x78/0xcc [ 185.248985] cpufreq_offline.isra.0+0x228/0x270 [ 185.253639] cpuhp_cpufreq_offline+0x10/0x20 [ 185.258027] cpuhp_invoke_callback+0x16c/0x2b0 [ 185.262592] cpuhp_thread_fun+0x190/0x250 [ 185.266710] smpboot_thread_fn+0x12c/0x230 [ 185.270914] kthread+0xfc/0x100 [ 185.274145] ret_from_fork+0x10/0x20 [ 185.277820] irq event stamp: 212 [ 185.281136] hardirqs last enabled at (211): [] _raw_spin_unlock_irqrestore+0x8c/0xa0 [ 185.290775] hardirqs last disabled at (212): [] __schedule+0x710/0xa10 [ 185.299081] softirqs last enabled at (0): [] copy_process+0x7d0/0x1a14 [ 185.307475] softirqs last disabled at (0): [<0000000000000000>] 0x0 Fixes: 275157b367f4 ("cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support") Signed-off-by: Dmitry Baryshkov Tested-by: Vladimir Zapolskiy Reviewed-by: Vladimir Zapolskiy Reviewed-by: Bjorn Andersson --- drivers/cpufreq/qcom-cpufreq-hw.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index 618e436018c0..44d46e52baea 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -427,6 +427,7 @@ static void qcom_cpufreq_hw_lmh_exit(struct qcom_cpufreq_data *data) mutex_unlock(&data->throttle_lock); cancel_delayed_work_sync(&data->throttle_work); + irq_set_affinity_hint(data->throttle_irq, NULL); free_irq(data->throttle_irq, data); }