From patchwork Thu Jul 11 08:17:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tao Zhang X-Patchwork-Id: 13730169 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D9332555B; Thu, 11 Jul 2024 08:20:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720686014; cv=none; b=rODIg/y5h9o6H5h2FI8tVkBYxMdmgsCysgRpiRSxYSh2+EtsQ4gCF2+pvoMJH+3q6Tu4ideBRUygfWPhiiHeOQrnXoKOsVNf8Hs9f0RE0oCwHjie84WXI96zEsX2LL/R1eQppiG35sl4PhT6flzviuRUbgCzAEcuD0Fyt5Ixjnk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720686014; c=relaxed/simple; bh=ECDjUX7sMoLGKS78SvFADoo7Z8KxnHERvqRD6Yv4Jd4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=i1M606MViJgso0WhooRD+p7QLgAl62gboWGRbz3TAoheBsJS0NDBcaBi5TcPwckjNbqPuXpDOft2aaxsury0Qc37FCS6g+apAf2Av6u9Pqrf7P/dI4Zzaie9tm8xJEHLfE7Vd5FEvmfYEyKyjsSujqwNQQbh0V7TkqYZcsKo+Fk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=oWO8OERk; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="oWO8OERk" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46B4mr6f008781; Thu, 11 Jul 2024 08:19:00 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=nDMGiZZIwHKkvAsjKVbyuA1P GVr/46NInHQRhNbuLxo=; b=oWO8OERkrQ1/SGZTana4Wu+V2wexz5rgqbe9F8du fumAFOTKr0xlHUzIJypI+I0jSqjpN/8v1csf1HCn2S28czPbh6rXzzNzh0pmuC7/ yeHacN8rzoQfSZcC8A6y1l55iEzvOdJjMFwdDv8A7dOSX9KQw7lQSBA76d54TIl4 EZVDmxp4bkYwZQ6cEUGKFTThYfbCukuirRo7ilahzivIpBZnw84LgbZQ2vALmYA1 6aeoN19XJEvZn5njFOVSmRpqxg0zhQ3Xqfi1SVEXkJy6jBcuCI3jaUAUfRMXJ9P1 ZsEgI116SrOrZyanEGE1skNNDiYuhtRHdCAH+8cLZMQ1CA== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 406x51bveq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 11 Jul 2024 08:18:59 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 46B8Iwdq004815 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 11 Jul 2024 08:18:59 GMT Received: from taozha2-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 11 Jul 2024 01:18:55 -0700 From: Tao Zhang To: Suzuki K Poulose , Mike Leach , James Clark , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mathieu Poirier , Leo Yan , Alexander Shishkin CC: Tao Zhang , , , , , Subject: [PATCH v2 3/3] coresight-tpda: Optimize the function of reading element size Date: Thu, 11 Jul 2024 16:17:50 +0800 Message-ID: <20240711081750.21792-4-quic_taozha@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240711081750.21792-1-quic_taozha@quicinc.com> References: <20240711081750.21792-1-quic_taozha@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Py0Jf22VgcsTHbipkSopWNKQv4Lhpa99 X-Proofpoint-ORIG-GUID: Py0Jf22VgcsTHbipkSopWNKQv4Lhpa99 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-11_04,2024-07-10_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 suspectscore=0 impostorscore=0 mlxlogscore=999 mlxscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2407110057 Since the new funnel device supports multi-port output scenarios, there may be more than one TPDM connected to one TPDA. In this way, when reading the element size of the TPDM, TPDA driver needs to find the expected TPDM corresponding to the filter source. When TPDA finds a TPDM or a filter source from a input connection, it will read the Devicetree to get the expected TPDM's element size. Signed-off-by: Tao Zhang --- drivers/hwtracing/coresight/coresight-tpda.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c index bfca103f9f84..4936ba4a7625 100644 --- a/drivers/hwtracing/coresight/coresight-tpda.c +++ b/drivers/hwtracing/coresight/coresight-tpda.c @@ -110,6 +110,8 @@ static int tpda_get_element_size(struct tpda_drvdata *drvdata, csdev->pdata->in_conns[i]->dest_port != inport) continue; + if (csdev->pdata->in_conns[i]->filter_src_dev) + in = csdev->pdata->in_conns[i]->filter_src_dev; if (coresight_device_is_tpdm(in)) { if (drvdata->dsb_esize || drvdata->cmb_esize) return -EEXIST; @@ -124,7 +126,6 @@ static int tpda_get_element_size(struct tpda_drvdata *drvdata, } } - return rc; }