From patchwork Thu Nov 3 04:58:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 621122 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 057EDC4321E for ; Thu, 3 Nov 2022 04:59:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229700AbiKCE72 (ORCPT ); Thu, 3 Nov 2022 00:59:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229591AbiKCE71 (ORCPT ); Thu, 3 Nov 2022 00:59:27 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 983B92192; Wed, 2 Nov 2022 21:59:26 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2A34h2tE021459; Thu, 3 Nov 2022 04:59:18 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=cdO44aLqtlUgc7uvbFUTp9qjSSt0TOiq7byBU5M2Ayw=; b=cWmlrwcOP8r0zwnUG2+XK8+q6/f0/MwpKT03GTSrpOYep0h+oVRuO3nZQ3ks4nHFBfCi yaQ2y/tbHErO+S3ae+Rvh9ba6rSfT2GFU/2lOWcsI+NCl0UBn4KJrlreKQbV4i6N452G DOp2ewei21ISvVsCbIgAM3ENx3wfPL3hvPDBJvB7l9i0G3fSi06wWyRCkGQGnvCszahA uIcZNY/IJmZGwIT9P3X87oAu605G3KgJ2uVV/dFZUdlVWPhOlbaK1NktQRe0eSon37FE DDfu2Dwm5tlfNCw7Ax3KLnDzW9Y6KIykREIvRqblLKT1IEdQgfdTELA7cPYysJI7MaJD Ig== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3km6v1g28v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 03 Nov 2022 04:59:18 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2A34xHgP006643 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 3 Nov 2022 04:59:17 GMT Received: from blr-ubuntu-87.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 15.2.986.29; Wed, 2 Nov 2022 21:59:13 -0700 From: Sibi Sankar To: , , , , CC: , , , , , , Sibi Sankar Subject: [RFC 1/2] dt-bindings: firmware: arm,scmi: Add support for memlat vendor protocol Date: Thu, 3 Nov 2022 10:28:31 +0530 Message-ID: <1667451512-9655-2-git-send-email-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1667451512-9655-1-git-send-email-quic_sibis@quicinc.com> References: <1667451512-9655-1-git-send-email-quic_sibis@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] 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: npfn_TKwMs-sNg4vgPPX8P0moW15zZG8 X-Proofpoint-GUID: npfn_TKwMs-sNg4vgPPX8P0moW15zZG8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-02_15,2022-11-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 mlxlogscore=999 clxscore=1015 mlxscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 suspectscore=0 adultscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211030035 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add bindings support for the SCMI QTI memlat (memory latency) vendor protocol. The memlat vendor protocol enables the frequency scaling of various buses (L3/LLCC/DDR) based on the memory latency governor running on the CPUSS Control Processor. Signed-off-by: Sibi Sankar --- .../devicetree/bindings/firmware/arm,scmi.yaml | 164 +++++++++++++++++++++ 1 file changed, 164 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 1c0388da6721..efc8a5a8bffe 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -189,6 +189,47 @@ properties: reg: const: 0x18 + protocol@80: + type: object + properties: + reg: + const: 0x80 + + qcom,bus-type: + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + minItems: 1 + description: + Identifier of the bus type to be scaled by the memlat protocol. + + cpu-map: + type: object + description: + The list of all cpu cluster configurations to be tracked by the memlat protocol + + patternProperties: + '^cluster[0-9]': + type: object + description: + Each cluster node describes the frequency domain associated with the + CPUFREQ HW engine and bandwidth requirements of the buses to be scaled. + + properties: + operating-points-v2: true + + qcom,freq-domain: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + Reference to the frequency domain of the CPUFREQ HW engine + items: + - items: + - description: phandle to CPUFREQ HW engine + - description: frequency domain associated with the cluster + + required: + - qcom,freq-domain + - operating-points-v2 + additionalProperties: false patternProperties: @@ -429,4 +470,127 @@ examples: }; }; + - | + #include + + firmware { + scmi { + compatible = "arm,scmi"; + + #address-cells = <1>; + #size-cells = <0>; + + mboxes = <&cpucp_mbox>; + mbox-names = "tx"; + shmem = <&cpu_scp_lpri>; + + scmi_memlat: protocol@80 { + reg = <0x80>; + qcom,bus-type = <0x2>; + + cpu-map { + cluster0 { + qcom,freq-domain = <&cpufreq_hw 0>; + operating-points-v2 = <&cpu0_opp_table>; + }; + + cluster1 { + qcom,freq-domain = <&cpufreq_hw 1>; + operating-points-v2 = <&cpu4_opp_table>; + }; + + cluster2 { + qcom,freq-domain = <&cpufreq_hw 2>; + operating-points-v2 = <&cpu7_opp_table>; + }; + }; + }; + }; + + cpu0_opp_table: opp-table-cpu0 { + compatible = "operating-points-v2"; + + cpu0_opp_300mhz: opp-300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-peak-kBps = <9600000>; + }; + + cpu0_opp_1325mhz: opp-1324800000 { + opp-hz = /bits/ 64 <1324800000>; + opp-peak-kBps = <33792000>; + }; + + cpu0_opp_2016mhz: opp-2016000000 { + opp-hz = /bits/ 64 <2016000000>; + opp-peak-kBps = <48537600>; + }; + }; + + cpu4_opp_table: opp-table-cpu4 { + compatible = "operating-points-v2"; + + cpu4_opp_691mhz: opp-691200000 { + opp-hz = /bits/ 64 <691200000>; + opp-peak-kBps = <9600000>; + }; + + cpu4_opp_941mhz: opp-940800000 { + opp-hz = /bits/ 64 <940800000>; + opp-peak-kBps = <17817600>; + }; + + cpu4_opp_2611mhz: opp-2611200000 { + opp-hz = /bits/ 64 <2611200000>; + opp-peak-kBps = <48537600>; + }; + }; + + cpu7_opp_table: opp-table-cpu7 { + compatible = "operating-points-v2"; + + cpu7_opp_806mhz: opp-806400000 { + opp-hz = /bits/ 64 <806400000>; + opp-peak-kBps = <9600000>; + }; + + cpu7_opp_2381mhz: opp-2380800000 { + opp-hz = /bits/ 64 <2380800000>; + opp-peak-kBps = <44851200>; + }; + + cpu7_opp_2515mhz: opp-2515200000 { + opp-hz = /bits/ 64 <2515200000>; + opp-peak-kBps = <48537600>; + }; + }; + }; + + + soc { + #address-cells = <2>; + #size-cells = <2>; + + cpucp_mbox: mailbox@17400000 { + compatible = "qcom,cpucp-mbox"; + reg = <0x0 0x17c00000 0x0 0x10>, <0x0 0x18590300 0x0 0x700>; + interrupts = ; + #mbox-cells = <0>; + }; + + sram@18509400 { + compatible = "mmio-sram"; + reg = <0x0 0x18509400 0x0 0x400>; + no-memory-wc; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x0 0x18509400 0x400>; + + cpu_scp_lpri: scp-sram-section@0 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0x80>; + }; + }; + }; + ...