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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1348ACD4F3C for ; Fri, 15 May 2026 19:44:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=WdE00SwGpqRjy/1BolsRPq7oxyYl9mYtKTNrRbZ8CzA=; b=jApuJtTLvm2THIvSFNdSp6k8on hC6S0ckKn8zXgDSxNDNEi1fg8oVPxVcxRk+Xzwb0gMq5z/SVhMrL15ps7DDWsJZ5Rq2e8e7NHSXDp M5B9eGTUAVGeYLCKAWbpiVslcrJtGhcJA7CWd6YdD+y6R1mceYN5yaBDVsWKUqhxTc8RPN6KYBfgo mm+n/mKrvhgQnniVACzIai2FGFye7f+DaTtmN3xKVXzQEn1NuAx/wOLy0Oj/CtZsQMqF8YGra/tst N9fvALw3f442ZKjHNXTh5up3WZIgU0ocRqGEojSBgmwyXtCRTh9wdC7ldjaBX6HJCWWwwOXgM0FGt ibaM3Qvg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wNyST-00000009FKY-1iFQ; Fri, 15 May 2026 19:44:29 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wNySQ-00000009FJy-3agB for linux-arm-kernel@lists.infradead.org; Fri, 15 May 2026 19:44:28 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 55DA735D8; Fri, 15 May 2026 12:44:18 -0700 (PDT) Received: from localhost (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2759D3F85F; Fri, 15 May 2026 12:44:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1778874263; bh=fGn67fcZjcz9edf4yEQ5Kkc8xloh2hLzf0ykwfBwxs4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VekRduJFvioIv1hmQejwhQy6DtJgsppoXCMqgEp6zK6SVx9b+SsdzXL08JSUeOW6Z yWPOvgMmH0I2ajsyK2mWB41zpSBvs6qgnerPWWCY6Q7uN90bGWxEfq1wvwaA9tNt3c SpOVMQCtYQSgFTkem99q0hcNZB2WyiA9NX6MCjhU= Date: Fri, 15 May 2026 20:44:21 +0100 From: Leo Yan To: Suzuki K Poulose , Mike Leach , James Clark , Yeoreum Yun , Mark Rutland , Will Deacon , Yabin Cui , Keita Morisaki , Jie Gan , Yuanfang Zhang , Greg Kroah-Hartman , Alexander Shishkin , Tamas Petz , Thomas Gleixner , Peter Zijlstra Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v13 23/28] coresight: Control path during CPU idle Message-ID: <20260515194421.GP34802@e132581.arm.com> References: <20260515-arm_coresight_path_power_management_improvement-v13-0-9dfc558ed65e@arm.com> <20260515-arm_coresight_path_power_management_improvement-v13-23-9dfc558ed65e@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260515-arm_coresight_path_power_management_improvement-v13-23-9dfc558ed65e@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260515_124427_045418_310FE921 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 15, 2026 at 07:51:46PM +0100, Leo Yan wrote: [...] > @@ -121,6 +122,9 @@ static void coresight_clear_percpu_source(struct coresight_device *csdev) > if (!csdev || !coresight_is_percpu_source(csdev)) > return; > > + /* Clear percpu_pm_failed */ > + this_cpu_write(percpu_pm_failed, false); This is not right when I looked again, we cannot assume this happens on local CPU. I will update and send a new one. Really sorry for flooding.