From patchwork Fri Oct 6 16:32:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffrey Hugo X-Patchwork-Id: 13411728 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 3FFACE81E1B for ; Fri, 6 Oct 2023 16:32:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232476AbjJFQcr (ORCPT ); Fri, 6 Oct 2023 12:32:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232851AbjJFQcp (ORCPT ); Fri, 6 Oct 2023 12:32:45 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 676C0FA for ; Fri, 6 Oct 2023 09:32:42 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 396EOtPu004344; Fri, 6 Oct 2023 16:32:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=HXPKL6sAIKxyt5aLJOBFWambGx0/ZP4dbw2HCLmlOYo=; b=heazUP4V8i560hmLzYvYXjVe/DlccBCTcieZHrqdyNE9lObX7jC/i9KLuHI252KRb601 XZae0qc/RE9nC2IVOh8QwQXSr1kakdNaaGsKZ8bvVSK38FOKAsarL55amxf/P8KRfenI 9pM6WDZEz7hPT2G5GuUOcSi9kk+dqbZctmJhl1DM1hVB2oepaE2SkgKw4gcPOrOAtThR ayjRcA71rsygD+8jDxckkvMh1uJMxiiWdVn9SC3lMEgb+ljzTFv9jG0zYxeKdP26Av9C 0HOL6Thf0XkDdMEwEliUeYC+8BvDA3OavAXC3b52qTmKrE2aiD+vbOP+2ZxGWSDIYiwp 1Q== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3tjgc68why-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 06 Oct 2023 16:32:30 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 396GWT2m018322 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 6 Oct 2023 16:32:29 GMT Received: from jhugo-lnx.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.36; Fri, 6 Oct 2023 09:32:28 -0700 From: Jeffrey Hugo To: , , , , CC: , , Jeffrey Hugo Subject: [PATCH 0/2] accel/qaic: Add support for host/device timesync Date: Fri, 6 Oct 2023 10:32:08 -0600 Message-ID: <20231006163210.21319-1-quic_jhugo@quicinc.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: xO1-aiUx61WfRmMDSfnjHKCQupj4E40S X-Proofpoint-GUID: xO1-aiUx61WfRmMDSfnjHKCQupj4E40S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-06_12,2023-10-06_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 mlxlogscore=999 impostorscore=0 adultscore=0 spamscore=0 phishscore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310060124 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org AIC100 supports a timesync mechanism that allows AIC100 to timestamp device logs with a host based time. This becomes useful for putting host logs in a unified timeline with device logs for debugging and performance profiling. The mechanism consists of a boot-time initialization and a runtime perodic resync to counteract the effects of time source drift over time between the host and device. Ajit Pal Singh (1): accel/qaic: Add support for periodic timesync Pranjal Ramajor Asha Kanojiya (1): accel/qaic: Support MHI QAIC_TIMESYNC channel Documentation/accel/qaic/aic100.rst | 6 +- Documentation/accel/qaic/qaic.rst | 5 + drivers/accel/qaic/Makefile | 3 +- drivers/accel/qaic/mhi_controller.c | 36 ++- drivers/accel/qaic/qaic.h | 4 + drivers/accel/qaic/qaic_drv.c | 17 ++ drivers/accel/qaic/qaic_timesync.c | 379 ++++++++++++++++++++++++++++ drivers/accel/qaic/qaic_timesync.h | 11 + 8 files changed, 457 insertions(+), 4 deletions(-) create mode 100644 drivers/accel/qaic/qaic_timesync.c create mode 100644 drivers/accel/qaic/qaic_timesync.h