From patchwork Fri Apr 12 14:26:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 13627859 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 7F80FC00A94 for ; Fri, 12 Apr 2024 14:27:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=bGF+2xRokl2fK3l6+HafNQ+py4vb2JWpd26Pt+v34lk=; b=Z9W37DPUEwuRh6 NBcuiqYDXE9gcibAytFr0EtiNAR6B+LUuIijWkHeCcAYqX7z58Rxhz0xNeDI8hvV5AnECa+KCiLX8 RRPbyw943P3aos/gOx2VDdrBInpz838KLQfwGBzT7hZKCHmx1z875IlgtqIDe1m3CUgqoxUoDsJgN bTlZU9L1xs5gnVXpm4FqlrVg397ve0zsQRBaVC/bOThoFnCpUue1sSCkIRKYO0acrv4PptxJCOef4 esslrMBImAdnlDfmJ4HR6490K0usyAIbSwI4acyRyqWHMZRxvQ8r+gpWPYsoMZlI0lROdexj2tn91 xsJk6wQtXy5GpxBMVtYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rvHsB-0000000HZBw-3PHG; Fri, 12 Apr 2024 14:27:23 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rvHs5-0000000HZ6F-1yod for linux-arm-kernel@lists.infradead.org; Fri, 12 Apr 2024 14:27:19 +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 148FC339; Fri, 12 Apr 2024 07:27:40 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D80DF3F766; Fri, 12 Apr 2024 07:27:09 -0700 (PDT) From: Suzuki K Poulose To: coresight@lists.linaro.org Cc: james.clark@arm.com, mike.leach@linaro.org, anshuman.khandual@arm.com, yabinc@google.com, linux-arm-kernel@lists.infradead.org, Suzuki K Poulose Subject: [PATCH v2 0/4] coresight: etm4x: Fix CPU idle PM support for ETE Date: Fri, 12 Apr 2024 15:26:58 +0100 Message-Id: <20240412142702.2882478-1-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240412_072717_674425_AE21D68F X-CRM114-Status: UNSURE ( 5.49 ) X-CRM114-Notice: Please train this message. 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 Our CPUidle state save restore has some bugs which are triggered for an ETM with system instructions (e.g. ETE). This is a series of fixes to address them. Changes since v1: - Fix inverted check for drvdata->csdev for Patch 1 (Yabin) - Remove Data trace register access macro cases (Mike Leach) - Fix QFILT field definition (Yabin) - (New patch) Fix Resource pair register access, reported-by Yabin Suzuki K Poulose (4): coresight: etm4x: Do not hardcode IOMEM access for register restore coresight: etm4x: Do not save/restore Data trace control registers coresight: etm4x: Safe access for TRCQCLTR coresight: etm4x: Fix access to resource selector registers .../coresight/coresight-etm4x-core.c | 26 +++++++++------- drivers/hwtracing/coresight/coresight-etm4x.h | 31 ++----------------- 2 files changed, 17 insertions(+), 40 deletions(-)