From patchwork Fri Aug 11 20:58:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Andersson X-Patchwork-Id: 712735 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 C4257C04E69 for ; Fri, 11 Aug 2023 20:59:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236108AbjHKU7C (ORCPT ); Fri, 11 Aug 2023 16:59:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236066AbjHKU7B (ORCPT ); Fri, 11 Aug 2023 16:59:01 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A168AC; Fri, 11 Aug 2023 13:59:01 -0700 (PDT) Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37BHLTvM012675; Fri, 11 Aug 2023 20:58:53 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=sGCA0R7vqoJ2iWs7IvuyI9LSVz61DhA61nAyHoTsW+s=; b=Dxjhctua8CrNzozjpxF4LsxJ4yWZqWg6GlU3BKLGWpZM5eso4lePZOOvlRvRp/tlOqyq e+St9gbMWelU+/wrkicepmOWPofvEyq+wcHOF+KHNCNx5RuQDmUukqJcF60x6p8nMBZb G+4jkWQDe0cYYvHKf5CeydbOD8RA6tsekj5AU6Lkl0oyqB9TZcSZPb++kDP5l2pjrtMC 9QmCvEMSz4Fmd7F/G3mGdPNvfh8tSZV4VgWl48pGWuhOpLVhSCjjqdbEVLDp5rktxBR5 Tzx4n/jnEDZs3PPszK/a09QuRZbfLoTNRMAHcyk24+8PlSOzc8pmqd3WS/1VtxZncTNp Nw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3sdsaf0cjj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Aug 2023 20:58:46 +0000 Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 37BKwjOQ006358 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Aug 2023 20:58:45 GMT Received: from hu-bjorande-lv.qualcomm.com (10.49.16.6) 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; Fri, 11 Aug 2023 13:58:45 -0700 From: Bjorn Andersson To: Bjorn Andersson , Konrad Dybcio , Chris Lew CC: Alex Elder , "David S. Miller" , Jakub Kicinski , Mathieu Poirier , , , , , Andrew Lunn Subject: [PATCH v2 0/4] soc: qcom: aoss: Introduce debugfs interface and cleanup things Date: Fri, 11 Aug 2023 13:58:35 -0700 Message-ID: <20230811205839.727373-1-quic_bjorande@quicinc.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) 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-ORIG-GUID: 4YQk9p4ZPnIJv3Dr4WxUHaDnT3fuuELY X-Proofpoint-GUID: 4YQk9p4ZPnIJv3Dr4WxUHaDnT3fuuELY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-11_12,2023-08-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 adultscore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 clxscore=1011 priorityscore=1501 spamscore=0 bulkscore=0 malwarescore=0 mlxlogscore=656 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308110193 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The Always On Processor supports a number useful commands for affecting system resources during in various debug scenarious. Introduce a debugfs interface for allowing the debugger/tester to send these commands. While at it, let's make some improvements to the qmp_send() API. In v1, Andrew pointed out the fact that this interface could be used to send proprietary commands from a userspace driver. As debugfs isn't enabled in the vast majority of shipping devices, this wouldn't be very useful. In the mantime having this interface present is very useful for members of the upstream Qualcomm community. It would be even more user (developer) friendly to expose each of these knobs as individual debugfs files. But the list of commands and resources looks to be varying from target to target, so this is still being investigated. The hope is to perhaps capture a set of common resources. Changes since v1: - Reverse xmas tree in qmp_send() in patch 1 - Correct length check of input data in patch 2 Bjorn Andersson (3): soc: qcom: aoss: Move length requirements from caller soc: qcom: aoss: Format string in qmp_send() soc: qcom: aoss: Tidy up qmp_send() callers Chris Lew (1): soc: qcom: aoss: Add debugfs interface for sending messages drivers/net/ipa/ipa_power.c | 5 +- drivers/remoteproc/qcom_q6v5.c | 8 +-- drivers/soc/qcom/qcom_aoss.c | 82 +++++++++++++++++++++--------- include/linux/soc/qcom/qcom_aoss.h | 4 +- 4 files changed, 61 insertions(+), 38 deletions(-)