From patchwork Tue Aug 22 05:26:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tao Zhang X-Patchwork-Id: 13360179 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 EEF0CEE4996 for ; Tue, 22 Aug 2023 05:28:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232877AbjHVF2Y (ORCPT ); Tue, 22 Aug 2023 01:28:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232792AbjHVF2I (ORCPT ); Tue, 22 Aug 2023 01:28:08 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 879D8E69; Mon, 21 Aug 2023 22:27:44 -0700 (PDT) Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37M4kivg003361; Tue, 22 Aug 2023 05:27:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=jSam8FH3LJR0KkMQvB43J/K674bEH6lmkiEKiZ3dVEc=; b=hxe3q5JU5W/hvSi7sIh9/bSiJP3uTX9AilCyzywkT/3M+eUUBDBJXse8PmK6a87+KK1k js1vHNEy8FYgmfOOUzy10Ez4E1DCf1ila1zuDf9/bbKOKnlEM69EYbGki9Yy3iPruq4F d2qLsUODHMm/41YK2KcvrHiF3kZNp5g32RQMkCp0Vtd3qYmtNTHmIBOh0fNWq6DYdV4/ BVRbDINjbFDoGQx7zlxc521WnRATLEyHadq1r4OWXwSnnHlxGeM2hreqxAegi8UjKG3u X0M/YmzHrpSVDXAcQ/wIhddSy9pvd7Hcs5OybUBpK/qCOSD4CP02I6okUE/4tIzRZlYk pA== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sm7jdhywu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 22 Aug 2023 05:27:27 +0000 Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37M5RQD6007962 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 22 Aug 2023 05:27:26 GMT Received: from taozha-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 15.2.1118.30; Mon, 21 Aug 2023 22:27:21 -0700 From: Tao Zhang To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin , Konrad Dybcio , Mike Leach , Rob Herring , Krzysztof Kozlowski CC: Tao Zhang , Jinlong Mao , Leo Yan , Greg Kroah-Hartman , , , , , Tingwei Zhang , Yuanfang Zhang , Trilok Soni , Hao Zhang , , Subject: [PATCH v8 10/13] coresight-tpdm: Add nodes to configure pattern match output Date: Tue, 22 Aug 2023 13:26:10 +0800 Message-ID: <1692681973-20764-11-git-send-email-quic_taozha@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1692681973-20764-1-git-send-email-quic_taozha@quicinc.com> References: <1692681973-20764-1-git-send-email-quic_taozha@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] 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: 07tbdWb7WHbxwv3xM1CvD1wjxbrsUiUq X-Proofpoint-ORIG-GUID: 07tbdWb7WHbxwv3xM1CvD1wjxbrsUiUq X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-22_03,2023-08-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 phishscore=0 clxscore=1015 mlxscore=0 lowpriorityscore=0 mlxlogscore=999 suspectscore=0 priorityscore=1501 impostorscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308220043 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add nodes to configure trigger pattern and trigger pattern mask. Each DSB subunit TPDM has maximum of n(n<7) XPR registers to configure trigger pattern match output. Eight 32 bit registers providing DSB interface trigger output pattern match comparison. And each DSB subunit TPDM has maximum of m(m<7) XPMR registers to configure trigger pattern mask match output. Eight 32 bit registers providing DSB interface trigger output pattern match mask. Signed-off-by: Tao Zhang --- .../ABI/testing/sysfs-bus-coresight-devices-tpdm | 18 +++++- drivers/hwtracing/coresight/coresight-tpdm.c | 71 +++++++++++++++++++++- drivers/hwtracing/coresight/coresight-tpdm.h | 29 +++++++++ 3 files changed, 116 insertions(+), 2 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm index 097fdc4..f5cd302 100644 --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm @@ -107,4 +107,20 @@ Date: March 2023 KernelVersion 6.5 Contact: Jinlong Mao (QUIC) , Tao Zhang (QUIC) Description: - Read a set of the edge control mask of the DSB in TPDM. \ No newline at end of file + Read a set of the edge control mask of the DSB in TPDM. + +What: /sys/bus/coresight/devices//dsb_trig_patt/xpr[0:7] +Date: March 2023 +KernelVersion 6.5 +Contact: Jinlong Mao (QUIC) , Tao Zhang (QUIC) +Description: + (RW) Set/Get the value of the trigger pattern for the DSB + subunit TPDM. + +What: /sys/bus/coresight/devices//dsb_trig_patt/xpmr[0:7] +Date: March 2023 +KernelVersion 6.5 +Contact: Jinlong Mao (QUIC) , Tao Zhang (QUIC) +Description: + (RW) Set/Get the mask of the trigger pattern for the DSB + subunit TPDM. \ No newline at end of file diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c index ba61e6a..6521019 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.c +++ b/drivers/hwtracing/coresight/coresight-tpdm.c @@ -39,9 +39,46 @@ static ssize_t tpdm_simple_dataset_show(struct device *dev, case DSB_EDGE_CTRL_MASK: return sysfs_emit(buf, "0x%x\n", drvdata->dsb->edge_ctrl_mask[tpdm_attr->idx]); + case DSB_TRIG_PATT: + return sysfs_emit(buf, "0x%x\n", + drvdata->dsb->trig_patt[tpdm_attr->idx]); + case DSB_TRIG_PATT_MASK: + return sysfs_emit(buf, "0x%x\n", + drvdata->dsb->trig_patt_mask[tpdm_attr->idx]); + default: + return -EINVAL; + } +} + +/* Write dataset array member with the index number */ +static ssize_t tpdm_simple_dataset_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t size) +{ + unsigned long val; + struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); + struct tpdm_dataset_attribute *tpdm_attr = + container_of(attr, struct tpdm_dataset_attribute, attr); + + if (kstrtoul(buf, 0, &val) || (tpdm_attr->idx >= tpdm_attr->max)) + return -EINVAL; + + spin_lock(&drvdata->spinlock); + switch (tpdm_attr->mem) { + case DSB_TRIG_PATT: + drvdata->dsb->trig_patt[tpdm_attr->idx] = val; + break; + case DSB_TRIG_PATT_MASK: + drvdata->dsb->trig_patt_mask[tpdm_attr->idx] = val; + break; default: + spin_unlock(&drvdata->spinlock); return -EINVAL; } + spin_unlock(&drvdata->spinlock); + + return size; } static bool tpdm_has_dsb_dataset(struct tpdm_drvdata *drvdata) @@ -102,7 +139,12 @@ static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata) for (i = 0; i < TPDM_DSB_MAX_EDCMR; i++) writel_relaxed(drvdata->dsb->edge_ctrl_mask[i], drvdata->base + TPDM_DSB_EDCMR(i)); - + for (i = 0; i < TPDM_DSB_MAX_PATT; i++) { + writel_relaxed(drvdata->dsb->trig_patt[i], + drvdata->base + TPDM_DSB_XPR(i)); + writel_relaxed(drvdata->dsb->trig_patt_mask[i], + drvdata->base + TPDM_DSB_XPMR(i)); + } val = readl_relaxed(drvdata->base + TPDM_DSB_TIER); /* Set trigger timestamp */ if (drvdata->dsb->trig_ts) @@ -531,6 +573,26 @@ static struct attribute *tpdm_dsb_edge_attrs[] = { NULL, }; +static struct attribute *tpdm_dsb_trig_patt_attrs[] = { + DSB_TRIG_PATT_ATTR(0), + DSB_TRIG_PATT_ATTR(1), + DSB_TRIG_PATT_ATTR(2), + DSB_TRIG_PATT_ATTR(3), + DSB_TRIG_PATT_ATTR(4), + DSB_TRIG_PATT_ATTR(5), + DSB_TRIG_PATT_ATTR(6), + DSB_TRIG_PATT_ATTR(7), + DSB_TRIG_PATT_MASK_ATTR(0), + DSB_TRIG_PATT_MASK_ATTR(1), + DSB_TRIG_PATT_MASK_ATTR(2), + DSB_TRIG_PATT_MASK_ATTR(3), + DSB_TRIG_PATT_MASK_ATTR(4), + DSB_TRIG_PATT_MASK_ATTR(5), + DSB_TRIG_PATT_MASK_ATTR(6), + DSB_TRIG_PATT_MASK_ATTR(7), + NULL, +}; + static struct attribute *tpdm_dsb_attrs[] = { &dev_attr_dsb_mode.attr, &dev_attr_dsb_trig_ts.attr, @@ -549,10 +611,17 @@ static struct attribute_group tpdm_dsb_edge_grp = { .name = "dsb_edge", }; +static struct attribute_group tpdm_dsb_trig_patt_grp = { + .attrs = tpdm_dsb_trig_patt_attrs, + .is_visible = tpdm_dsb_is_visible, + .name = "dsb_trig_patt", +}; + static const struct attribute_group *tpdm_attr_grps[] = { &tpdm_attr_grp, &tpdm_dsb_attrs_grp, &tpdm_dsb_edge_grp, + &tpdm_dsb_trig_patt_grp, NULL, }; diff --git a/drivers/hwtracing/coresight/coresight-tpdm.h b/drivers/hwtracing/coresight/coresight-tpdm.h index 9736e00..9e1b0a4 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.h +++ b/drivers/hwtracing/coresight/coresight-tpdm.h @@ -12,6 +12,8 @@ /* DSB Subunit Registers */ #define TPDM_DSB_CR (0x780) #define TPDM_DSB_TIER (0x784) +#define TPDM_DSB_XPR(n) (0x7C8 + (n * 4)) +#define TPDM_DSB_XPMR(n) (0x7E8 + (n * 4)) #define TPDM_DSB_EDCR(n) (0x808 + (n * 4)) #define TPDM_DSB_EDCMR(n) (0x848 + (n * 4)) @@ -80,6 +82,8 @@ #define TPDM_DSB_MAX_EDCR 16 /* MAX number of EDCMR registers */ #define TPDM_DSB_MAX_EDCMR 8 +/* MAX number of DSB pattern */ +#define TPDM_DSB_MAX_PATT 8 #define tpdm_simple_dataset_ro(name, mem, idx, max) \ (&((struct tpdm_dataset_attribute[]) { \ @@ -91,6 +95,17 @@ } \ })[0].attr.attr) +#define tpdm_simple_dataset_rw(name, mem, idx, max) \ + (&((struct tpdm_dataset_attribute[]) { \ + { \ + __ATTR(name, 0644, tpdm_simple_dataset_show, \ + tpdm_simple_dataset_store), \ + mem, \ + idx, \ + max \ + } \ + })[0].attr.attr) + #define DSB_EDGE_CTRL_ATTR(nr) \ tpdm_simple_dataset_ro(edcr##nr, \ DSB_EDGE_CTRL, nr, TPDM_DSB_MAX_EDCR) @@ -99,12 +114,22 @@ tpdm_simple_dataset_ro(edcmr##nr, \ DSB_EDGE_CTRL_MASK, nr, TPDM_DSB_MAX_EDCMR) +#define DSB_TRIG_PATT_ATTR(nr) \ + tpdm_simple_dataset_rw(xpr##nr, \ + DSB_TRIG_PATT, nr, TPDM_DSB_MAX_PATT) + +#define DSB_TRIG_PATT_MASK_ATTR(nr) \ + tpdm_simple_dataset_rw(xpmr##nr, \ + DSB_TRIG_PATT_MASK, nr, TPDM_DSB_MAX_PATT) + /** * struct dsb_dataset - specifics associated to dsb dataset * @mode: DSB programming mode * @edge_ctrl_idx Index number of the edge control * @edge_ctrl: Save value for edge control * @edge_ctrl_mask: Save value for edge control mask + * @trig_patt: Save value for trigger pattern + * @trig_patt_mask: Save value for trigger pattern mask * @trig_ts: Enable/Disable trigger timestamp. * @trig_type: Enable/Disable trigger type. */ @@ -113,6 +138,8 @@ struct dsb_dataset { u32 edge_ctrl_idx; u32 edge_ctrl[TPDM_DSB_MAX_EDCR]; u32 edge_ctrl_mask[TPDM_DSB_MAX_EDCMR]; + u32 trig_patt[TPDM_DSB_MAX_PATT]; + u32 trig_patt_mask[TPDM_DSB_MAX_PATT]; bool trig_ts; bool trig_type; }; @@ -142,6 +169,8 @@ struct tpdm_drvdata { enum dataset_mem { DSB_EDGE_CTRL, DSB_EDGE_CTRL_MASK, + DSB_TRIG_PATT, + DSB_TRIG_PATT_MASK, }; /**