From patchwork Tue Jul 2 19:14:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 13720183 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 949A8C30658 for ; Tue, 2 Jul 2024 19:15:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Z0DBqS5vR5+lA9kDy9ecaSugZpkGCNtPOOHlIzjoQ18=; b=DlkVTxnLicu2cr84Sr4zD+Dg0z hN+l2G63B+5F2HEXbCYJeTwa/wExLqblduFPdOLCTkIEtBSDyNjQxJjciD4rZKRuOUSL0Zgnx+npM 05Pha1JdcItAEvqhp0yAoBLv3aisYZoHlG1d+dqJKwrCttp45vWUrRrllXhmsLR/2ID/pF/3dc2pc KXxqpXntqbqmLlTCz6OAQe29TwUane44bEkCeb2l35LS0kSAfedpZazxxKwHCQiyiC5b4D/7vFtJF aZYbsLLuYHozdhgyWITTt2On3/us6TXnSYQLeg2XvqmBp2FeKuEvACddsRu19kp1XPRjLqKmGQm2O 8IsTOpcQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sOiyS-00000007jh4-2AYO; Tue, 02 Jul 2024 19:15:32 +0000 Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sOiy9-00000007jbV-2KdU for linux-arm-kernel@lists.infradead.org; Tue, 02 Jul 2024 19:15:15 +0000 Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 462HA7k4030531; Tue, 2 Jul 2024 19:15:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= Z0DBqS5vR5+lA9kDy9ecaSugZpkGCNtPOOHlIzjoQ18=; b=S8ImlkQU8qnyUxxB X51ERSPrvsYOdHmryJ6MFt9Ub044VisXlNTUTIi664xpt9VG6p64Z9q8b9GdVJBk p7D1GGPq+3aXKWYc89lWyKYKCeevEFUYnAlYRwqYOjvF6iw/4yfZfV8DrG/EGGRj ycGsKoPhULc7eqVmUYdoFCjbAx57XwB819g09soQkqX7HVM547wdMoivWypogvj4 OHR36jWpNffzKJlMCp9V/dpuH4gXCksadYf4wttimdTYuvO8xk3s/Du46w2fRTSY qCw8Pj7AQMvkfEsmnv3vJ2oki9ejPH0raWgwrsIYY8qOe4MW27X5FNHf9bYnBcug kOO0kg== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4029uxesat-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 02 Jul 2024 19:15:06 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 462JF5qF031767 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 2 Jul 2024 19:15:05 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; Tue, 2 Jul 2024 12:15:00 -0700 From: Sibi Sankar To: , , , , , CC: , , , , , , , Subject: [RFC V3 1/4] dt-bindings: firmware: Document bindings for ARM SCMI QCOM Vendor Protocol Date: Wed, 3 Jul 2024 00:44:37 +0530 Message-ID: <20240702191440.2161623-2-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240702191440.2161623-1-quic_sibis@quicinc.com> References: <20240702191440.2161623-1-quic_sibis@quicinc.com> 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-GUID: 4mKv3k27xcXZGdFjevvYCRbZ_uknNAEy X-Proofpoint-ORIG-GUID: 4mKv3k27xcXZGdFjevvYCRbZ_uknNAEy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-02_14,2024-07-02_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 bulkscore=0 spamscore=0 mlxscore=0 clxscore=1015 phishscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2407020140 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240702_121513_738621_982D45B0 X-CRM114-Status: GOOD ( 20.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Document the various memory buses that can be monitored and scaled by the memory latency governor hosted by the ARM SCMI QCOM Vendor protocol v1.0. Signed-off-by: Sibi Sankar --- Adding a reg property in scmi-memlat.yaml seems incorrect/superfluous but without it I see the following errors: Err Logs: protocol@80: 'reg' does not match any of the regexes: '^memory-[0-9]$', 'pinctrl-[0-9]+' protocol@80: Unevaluated properties are not allowed ('memory-0', 'memory-1', 'memory-2' were unexpected) 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] .../bindings/firmware/arm,scmi.yaml | 15 ++ .../bindings/soc/qcom/qcom,scmi-memlat.yaml | 242 ++++++++++++++++++ include/dt-bindings/soc/qcom,scmi-vendor.h | 22 ++ 3 files changed, 279 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,scmi-memlat.yaml create mode 100644 include/dt-bindings/soc/qcom,scmi-vendor.h diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 4d823f3b1f0e..a4022682e5ca 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -284,6 +284,21 @@ properties: required: - reg + protocol@80: + type: object + allOf: + - $ref: '#/$defs/protocol-node' + - $ref: /schemas/soc/qcom/qcom,scmi-memlat.yaml# + + unevaluatedProperties: false + + properties: + reg: + const: 0x80 + + required: + - reg + additionalProperties: false $defs: diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,scmi-memlat.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,scmi-memlat.yaml new file mode 100644 index 000000000000..915a6bf5697f --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,scmi-memlat.yaml @@ -0,0 +1,242 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/qcom/qcom,scmi-memlat.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SCMI Memory Bus nodes + +maintainers: + - Sibi Sankar + +description: + This binding describes the various memory buses that can be monitored and scaled + by memory latency governor running on the CPU Control Processor (SCMI controller). + +properties: + reg: + maxItems: 1 + +patternProperties: + '^memory-[0-9]$': + type: object + description: + The list of all memory buses that can be monitored and scaled by the + memory latency governor running on the SCMI controller. + + unevaluatedProperties: false + + properties: + qcom,memory-type: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + description: | + Memory Bus Identifier + 0 = QCOM_MEM_TYPE_DDR + 1 = QCOM_MEM_TYPE_LLCC + 2 = QCOM_MEM_TYPE_DDR_QOS + + freq-table-hz: + items: + items: + - description: Minimum frequency of the memory bus in Hz + - description: Maximum frequency of the memory bus in Hz + + patternProperties: + '^monitor-[0-9]$': + type: object + unevaluatedProperties: false + description: + The list of all monitors detecting the memory latency bound workloads using + various counters. + + properties: + qcom,compute-type: + description: + Monitors of type compute perform bus dvfs based on a rudimentary CPU + frequency to memory frequency map. + type: boolean + + qcom,ipm-ceil: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Monitors having this property perform bus dvfs based on the same + rudimentary table but the scaling is performed only if the calculated + IPM (Instruction Per Misses) exceeds the given ceiling. + + cpus: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + Should be a list of phandles to CPU nodes (as described in + Documentation/devicetree/bindings/arm/cpus.yaml). + + operating-points-v2: true + opp-table: + type: object + + required: + - cpus + - operating-points-v2 + + oneOf: + - required: [ 'qcom,compute-type' ] + - required: [ 'qcom,ipm-ceil' ] + + required: + - qcom,memory-type + - freq-table-hz + +additionalProperties: false + +examples: + - | + #include + + firmware { + scmi { + compatible = "arm,scmi"; + mboxes = <&cpucp_mbox 0>, <&cpucp_mbox 2>; + mbox-names = "tx", "rx"; + shmem = <&cpu_scp_lpri0>, <&cpu_scp_lpri1>; + + #address-cells = <1>; + #size-cells = <0>; + + protocol@80 { + reg = <0x80>; + + memory-0 { + qcom,memory-type = ; + freq-table-hz = /bits/ 64 <200000000 4224000000>; + + monitor-0 { + qcom,ipm-ceil = <20000000>; + cpus = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 + &CPU8 &CPU9 &CPU10 &CPU11>; + operating-points-v2 = <&memory0_monitor0_opp_table>; + + memory0_monitor0_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-999000000 { + opp-hz = /bits/ 64 <999000000 547000000>; + }; + + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000 768000000>; + }; + + opp-1671000000 { + opp-hz = /bits/ 64 <1671000000 1555000000>; + }; + + opp-2189000000 { + opp-hz = /bits/ 64 <2189000000 2092000000>; + }; + + opp-2516000000 { + opp-hz = /bits/ 64 <2516000000 3187000000>; + }; + + opp-3860000000 { + opp-hz = /bits/ 64 <3860000000 4224000000>; + }; + }; + }; + + monitor-1 { + qcom,compute-type; + cpus = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 + &CPU8 &CPU9 &CPU10 &CPU11>; + operating-points-v2 = <&memory0_monitor1_opp_table>; + + memory0_monitor1_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000 200000000>; + }; + + opp-2189000000 { + opp-hz = /bits/ 64 <2189000000 768000000>; + }; + + opp-2516000000 { + opp-hz = /bits/ 64 <2516000000 1555000000>; + }; + + opp-3860000000 { + opp-hz = /bits/ 64 <3860000000 4224000000>; + }; + }; + }; + }; + + memory-1 { + qcom,memory-type = ; + freq-table-hz = /bits/ 64 <300000000 1067000000>; + + monitor-0 { + qcom,ipm-ceil = <20000000>; + cpus = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 + &CPU8 &CPU9 &CPU10 &CPU11>; + operating-points-v2 = <&memory1_monitor0_opp_table>; + + memory1_monitor0_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-999000000 { + opp-hz = /bits/ 64 <999000000 300000000>; + }; + + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000 466000000>; + }; + + opp-1671000000 { + opp-hz = /bits/ 64 <1671000000 600000000>; + }; + + opp-2189000000 { + opp-hz = /bits/ 64 <2189000000 806000000>; + }; + + opp-2516000000 { + opp-hz = /bits/ 64 <2516000000 933000000>; + }; + + opp-3860000000 { + opp-hz = /bits/ 64 <3860000000 1066000000>; + }; + }; + }; + }; + + memory-2 { + qcom,memory-type = ; + freq-table-hz = /bits/ 64 ; + + monitor-0 { + qcom,ipm-ceil = <20000000>; + cpus = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 + &CPU8 &CPU9 &CPU10 &CPU11>; + operating-points-v2 = <&memory2_monitor0_opp_table>; + + memory2_monitor0_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-2189000000 { + opp-hz = /bits/ 64 <2189000000>; + opp-level = ; + }; + + opp-3860000000 { + opp-hz = /bits/ 64 <3860000000>; + opp-level = ; + }; + }; + }; + }; + }; + }; + }; diff --git a/include/dt-bindings/soc/qcom,scmi-vendor.h b/include/dt-bindings/soc/qcom,scmi-vendor.h new file mode 100644 index 000000000000..7ae8d8d5623b --- /dev/null +++ b/include/dt-bindings/soc/qcom,scmi-vendor.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved. + */ +#ifndef __DT_BINDINGS_QCOM_SCMI_VENDOR_H +#define __DT_BINDINGS_QCOM_SCMI_VENDOR + +/* Memory IDs */ +#define QCOM_MEM_TYPE_DDR 0x0 +#define QCOM_MEM_TYPE_LLCC 0x1 +#define QCOM_MEM_TYPE_DDR_QOS 0x2 + +/* + * QCOM_MEM_TYPE_DDR_QOS supports the following states. + * + * %QCOM_DDR_LEVEL_AUTO: DDR operates with LPM enabled + * %QCOM_DDR_LEVEL_PERF: DDR operates with LPM disabled + */ +#define QCOM_DDR_LEVEL_AUTO 0x0 +#define QCOM_DDR_LEVEL_PERF 0x1 + +#endif /* __DT_BINDINGS_QCOM_SCMI_VENDOR_H */