From patchwork Fri Nov 15 01:15:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 13875801 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 C91431E522; Fri, 15 Nov 2024 01:15:43 +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=1731633345; cv=none; b=g6Arx2Ie7cEvhvuEKBk6vzPGy1CCm+LwQthZzwMZ1cUjeIPYhjYDLDMpRNuylHZnMBI5E2JlIrIILVWfrxZsFGzI5SHBawUK0PC1/J2AWi/14TrjRUawhrEkL4PObY4EEMNcjJ7OBnuFutMT10H2VczxMW277kY0daEivYgtr50= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731633345; c=relaxed/simple; bh=pJF6FnthLaZDlGhslANwjiqRlQJlVEyZ1a9Jnw0V2FE=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=TGuL9dKl+WOnBvtl12PsBzXzkjZcwLX+El0O5O5LadbyhYeOaWWbycrho97GApSJeEcWL5noYbs5altW9gXDiANVAI1po76R4pqS1HGIHLH/eTjqbSrHL8UfXsF5iEgoylvc3zLot8i3dy9HialrxyjB11YNv6dZJN4qA2qZaOM= 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=BR0ya8wO; 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="BR0ya8wO" Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4AEHHw9A000914; Fri, 15 Nov 2024 01:15:34 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=zh7TTW8tLIxvXk1cjlASsZ hsAqj2uXJLd5tfnba2ABw=; b=BR0ya8wOwYhyS5yr9qA1PtlUHUZObw+i42OrMq W3uH/AHLNjGIsnx5n39SV0EeXThRSxolsdQboeUCqZW9FTtTxAoYWCCWJ02G6LKU 3T1lXXZiYWNKLQuYPnRJ0ESrNNHI/xMEX3mfCJTi/fXVo8j3V54Him+ZeSKtnQes Cg+eL2tnxJWOEZvjv18POh+MxE9AL3xbGOlLKpE+kr6Ad2yqh/mrm+zlXmlvs59N zZNQVEx589JS9BEZd/ELBFbNgeUUMYTPaRFoS5/WbwVu4LvXxb4n+dd/zVg19akj eEX/9Y5X3WB7mElmk0PhqzcKEwGu/TCV8jql2gJf8ez9WjfQ== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 42w9sv4364-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Nov 2024 01:15:33 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4AF1FXJj009013 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 15 Nov 2024 01:15:33 GMT Received: from hu-sibis-blr.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 15.2.1544.9; Thu, 14 Nov 2024 17:15:29 -0800 From: Sibi Sankar To: , , , CC: , , , , , , Subject: [PATCH V5 0/2] arm_scmi: vendors: Qualcomm Generic Vendor Extensions Date: Fri, 15 Nov 2024 06:45:13 +0530 Message-ID: <20241115011515.1313447-1-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 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 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: zjtL2fq0-uBsnsOb6Yi41aMzSpjcu7mt X-Proofpoint-GUID: zjtL2fq0-uBsnsOb6Yi41aMzSpjcu7mt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 bulkscore=0 clxscore=1015 mlxlogscore=959 priorityscore=1501 phishscore=0 malwarescore=0 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411150009 The QCOM SCMI vendor protocol provides a generic way of exposing a number of Qualcomm SoC specific features (like memory bus scaling) through a mixture of pre-determined algorithm strings and param_id pairs hosted on the SCMI controller. Introduce a client driver that uses the memlat algorithm string hosted on QCOM SCMI Vendor Protocol to detect memory latency workloads and control frequency/level of the various memory buses (DDR/LLCC/DDR_QOS). QCOM SCMI Generic Vendor protocol background: It was found that a lot of the vendor protocol used internally was for debug/internal development purposes that would either be super SoC specific or had to be disabled because of some features being fused out during production. This lead to a large number of vendor protocol numbers being quickly consumed and were never released either. Using a generic vendor protocol with functionality abstracted behind algorithm strings gave us the flexibility of allowing such functionality exist during initial development/debugging while still being able to expose functionality like memlat once they have matured enough. The param-ids are certainly expected to act as ABI for algorithms strings like MEMLAT. Thanks in advance for taking time to review the series. V4: * Splitting the series into vendor protocol and memlat client. Also the move the memlat client implementation back to RFC due to multiple opens. * Use common xfer helper to avoid code duplication [Dmitry] * Update enum documentation without duplicate enum info [Dmitry] * Update the protol attributes doc with more information. [Cristian] V3: * Restructure the bindings to mimic IMX [Christian] * Add documentation for the qcom generic vendor protocol [Christian/Sudeep] * Pick up Rb tag and fixup/re-order elements of the vendor ops [Christian] * Follow naming convention and folder structure used by IMX * Add missing enum in the vendor protocol and fix documentation [Konrad] * Add missing enum in the scmi memlat driver and fix documentation [Konrad] * Add checks for max memory and monitor [Shivnandan] * Fix typo from START_TIMER -> STOP_TIMER [Shivnandan] * Make populate_physical_mask func to void [Shivnandan] * Remove unecessary zero set [Shivnandan] * Use __free(device node) in init_cpufreq-memfreqmap [Christian/Konrad] * Use sdev->dev.of_node directly [Christian] * use return dev_err_probe in multiple places [Christian] V2: * Drop container dvfs memlat container node. [Rob] * Move scmi-memlat.yaml to protocol level given that a lot of vendors might end up * using the same protocol number. [Rob] * Replace qcom,cpulist with the standard "cpus" property. [Rob] * Fix up compute-type/ipm-ceil required. [Rob] * Make driver changes to the accommodate bindings changes. [Rob] * Minor fixups in subjects/coverletter. * Minor style fixes in dts. V1: * Add missing bindings for the protocol. [Konrad/Dmitry] * Use alternate bindings. [Dmitry/Konrad] * Rebase on top of Cristian's "SCMI multiple vendor protocol support" series. [Cristian] * Add more documentation wherever possible. [Sudeep] * Replace pr_err/info with it's dev equivalents. * Mixed tabs and initialization cleanups in the memlat driver. [Konrad] * Commit message update for the memlat driver. [Dmitry] * Cleanups/Fixes suggested for the client driver. [Dmitry/Konrad/Cristian] * Use opp-tables instead of memfreq-tbl. [Dmitry/Konrad] * Detect physical cpu to deal with variants with reduced cpu count. * Add support for DDR_QOS mem_type. Sibi Sankar (2): firmware: arm_scmi: Add QCOM Generic Vendor Protocol documentation firmware: arm_scmi: vendors: Add QCOM SCMI Generic Extensions drivers/firmware/arm_scmi/Kconfig | 1 + drivers/firmware/arm_scmi/Makefile | 1 + .../firmware/arm_scmi/vendors/qcom/Kconfig | 15 ++ .../firmware/arm_scmi/vendors/qcom/Makefile | 2 + .../arm_scmi/vendors/qcom/qcom-generic-ext.c | 139 ++++++++++++ .../arm_scmi/vendors/qcom/qcom_generic.rst | 211 ++++++++++++++++++ include/linux/scmi_qcom_protocol.h | 37 +++ 7 files changed, 406 insertions(+) create mode 100644 drivers/firmware/arm_scmi/vendors/qcom/Kconfig create mode 100644 drivers/firmware/arm_scmi/vendors/qcom/Makefile create mode 100644 drivers/firmware/arm_scmi/vendors/qcom/qcom-generic-ext.c create mode 100644 drivers/firmware/arm_scmi/vendors/qcom/qcom_generic.rst create mode 100644 include/linux/scmi_qcom_protocol.h