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[23.128.96.37]) by mx.google.com with ESMTPS id d12-20020a63f24c000000b00578dfa34d95si1533937pgk.574.2023.10.18.00.06.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 00:06:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 466A7807479F; Wed, 18 Oct 2023 00:05:44 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344627AbjJRHF3 (ORCPT + 23 others); Wed, 18 Oct 2023 03:05:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344635AbjJRHF0 (ORCPT ); Wed, 18 Oct 2023 03:05:26 -0400 Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DA3AFF for ; Wed, 18 Oct 2023 00:05:22 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R661e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045192;MF=tianruidong@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0VuPveYH_1697612709; Received: from localhost(mailfrom:tianruidong@linux.alibaba.com fp:SMTPD_---0VuPveYH_1697612709) by smtp.aliyun-inc.com; Wed, 18 Oct 2023 15:05:18 +0800 From: Ruidong Tian To: linux-kernel@vger.kernel.org Cc: james.clark@arm.com, coresight@lists.linaro.org, suzuki.poulose@arm.com, mike.leach@linaro.org, alexander.shishkin@linux.intel.com, linux-arm-kernel@lists.infradead.org, Ruidong Tian Subject: [PATCH] coresight: etm4x: Enable ETE device accessed via MMIO Date: Wed, 18 Oct 2023 15:05:06 +0800 Message-Id: <20231018070506.65320-1-tianruidong@linux.alibaba.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 X-Spam-Status: No, score=-9.9 required=5.0 tests=BAYES_00, ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 18 Oct 2023 00:05:44 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780076024704543440 X-GMAIL-MSGID: 1780076024704543440 The ETM4X driver now assume that all ETE as CPU system instructions accessed device, in fact the ETE device on some machines also accessed via MMIO. Signed-off-by: Ruidong Tian --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 285539104bcc..ad298c9cc87e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1103,8 +1103,9 @@ static bool etm4_init_iomem_access(struct etmv4_drvdata *drvdata, * with MMIO. But we cannot touch the OSLK until we are * sure this is an ETM. So rely only on the TRCDEVARCH. */ - if ((devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETMv4x_ARCH) { - pr_warn_once("TRCDEVARCH doesn't match ETMv4 architecture\n"); + if ((devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETMv4x_ARCH && + (devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETE_ARCH) { + pr_warn_once("TRCDEVARCH doesn't match ETMv4/ETE architecture\n"); return false; }