From patchwork Fri Sep 8 02:51:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AKASHI Takahiro X-Patchwork-Id: 720794 Delivered-To: patch@linaro.org Received: by 2002:adf:eec5:0:b0:31d:da82:a3b4 with SMTP id a5csp548717wrp; Thu, 7 Sep 2023 19:54:27 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFe51BsA4lCtpTo2/TOxfF7vf4N/8miuK9JmWV67oH4VcyXvW5Pv5GSmzJBIl6Wy3zD4nZu X-Received: by 2002:a05:600c:2946:b0:3fc:7eb:1119 with SMTP id n6-20020a05600c294600b003fc07eb1119mr1181583wmd.15.1694141667402; Thu, 07 Sep 2023 19:54:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694141667; cv=none; d=google.com; s=arc-20160816; b=Y/dmkbh9oYachOP1L67+xBUW6uvwEzFYBGbnq2NETdUqAs/BJrr2J1mEO4Mrj8PP74 RA3avRzl3qsoIG+hlxfsNMmArYS8Fh0PdPGdFA7mFyeKvcfCUEIfHMKPTCnk4fE6nkIP 41egbqiU3rYNcvlxSnfE65zoYdR8lHd6rvkraQ6O9SQU+9EfPWiVg1jo/4pwxZkzHbzh vQpCiH6IQacqGiEVzB1FgjPKf7O6RRrrJQSOPL7bbixHqPmHcEnqtqjNFfJmQ6hs1uq7 gSD8zaUc4Rsi48x56auyaXkQWnzkDEQiwAzfvPbIT3hsQIMIjc9BrrsmtVx2jkRC0gVG PFNQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=q0FkoP3w1CPqPpr0ceh6OYlsga4yz8DeWrXbi96YnB0=; fh=K4dQhL74gef2glEqNOnE2YOBTqRi7qf0ycKBewrN6K8=; b=SKqVIrURZtgUCysFgBcR0OkyMIIw98XgPbpmgBn4UL3bpQrhMSPG3eEOvOKQKPpg8m L4R+YYO+x4jrn7jpnL7nelBhOU0Z9GxHfkZJYIib9Y55o0dE54Y3R1Z/3fjPahqFyE4O 6MTwj80GMsUEzaa2gfScnBw+c8aID+L35b8X4tRjtChJFA5or6Jm/sn4nLndbgXV2Ie+ pbRi3qggQWhY0UAFZT5pd/9BYyFJbnmDEuCJ+2oelWqZiKLL/E0iF/PQ72qiwyShJVm1 NfBgH0Hgt27rTPtNnGb9PKPXohO01RWHdFqWJu+TET5GwXdacrSEMfkyK9J5ExfInudn WEMQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=R0LaUf6J; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from phobos.denx.de (phobos.denx.de. [2a01:238:438b:c500:173d:9f52:ddab:ee01]) by mx.google.com with ESMTPS id n39-20020a05600c502700b003fa800e8efcsi1744230wmr.95.2023.09.07.19.54.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Sep 2023 19:54:27 -0700 (PDT) Received-SPF: pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=R0LaUf6J; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id BE89A86A5A; Fri, 8 Sep 2023 04:52:44 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="R0LaUf6J"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 5FE8B86A3F; Fri, 8 Sep 2023 04:52:43 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com [IPv6:2607:f8b0:4864:20::630]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 4946B86995 for ; Fri, 8 Sep 2023 04:52:40 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=takahiro.akashi@linaro.org Received: by mail-pl1-x630.google.com with SMTP id d9443c01a7336-1c0a4333e03so3612995ad.0 for ; Thu, 07 Sep 2023 19:52:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1694141558; x=1694746358; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=q0FkoP3w1CPqPpr0ceh6OYlsga4yz8DeWrXbi96YnB0=; b=R0LaUf6JDzAxfsLtwLzIbNMepnBnyZ3yzT/SwtHkxYULGrid/x+k4uukz9rE9JgBmk LOMNyO5bJHKe/XmHv0fwDtQ3rWbM056xXA1DK3ZA2fib6S5AT4K1Af3xztMdkeGx8mIW IT/FPV40SUoqXxCk9dzMVdNt8cnGseiTCfJQcMs2XlWoaMGpLBWNje2n7zhlCb819OLe G+OIn9E1BYj36qvRQpvELNdW1Hztr0yTxoSnUf0e5QIr3nRc/wx5QSxHSZVs5GOabz1b oX2jA8yTf7Dm6XUxjrPsZIP5VhhWZ7b9YAqc9RyckNYzPvIstcF1nNJO4FR+qBTtE7/B NHIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694141558; x=1694746358; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=q0FkoP3w1CPqPpr0ceh6OYlsga4yz8DeWrXbi96YnB0=; b=bdPUqRbqE2+VaYPMbRQVlvyNq+1ohOcMmGD4Wj0Rr1XdQ/2zUSWSHF7lKJKWspBZga Gp/wREAgVHepLGbiBPclZlqRKddJb5dIpIeOoPJUoIYUevICN3LC2LJE1x63p7uoULEB ln7UPinxlCdh0az2Uy50cMrB87iAafwI8kNiSiYvR4AGIViVCKKd4qLFF9GTzEm3QMpx 80hmUiFtY5VFa4EDvpMS8X26Ht+eNCoNFXF6zvGPKZZQRW+5hQqsAyKMaTu8o4wImjK/ SAOu46j6zFi7mzh8LYnZKtWESVyvS5hyyscyiG7TVx0D9LhKLLFu4K4RZXu8HJlfbVGa SV6w== X-Gm-Message-State: AOJu0YyJCUqEYLYBEcKKQhWxwawc0QVe2RiCqny8XscFKoaD0XfOsw2R 6AzNTJ8qVgPDsBxdQcd5pchfpw== X-Received: by 2002:a17:902:f54f:b0:1c0:bf60:ba82 with SMTP id h15-20020a170902f54f00b001c0bf60ba82mr1406896plf.5.1694141558641; Thu, 07 Sep 2023 19:52:38 -0700 (PDT) Received: from octopus.. ([2400:4050:c3e1:100:2d89:7669:ac2d:f09e]) by smtp.gmail.com with ESMTPSA id n9-20020a170902e54900b001c0ce518e98sm417286plf.224.2023.09.07.19.52.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Sep 2023 19:52:38 -0700 (PDT) From: AKASHI Takahiro To: trini@konsulko.com, sjg@chromium.org Cc: etienne.carriere@st.com, u-boot@lists.denx.de, AKASHI Takahiro , Etienne Carriere Subject: [PATCH v3 11/13] cmd: add scmi command for SCMI firmware Date: Fri, 8 Sep 2023 11:51:36 +0900 Message-Id: <20230908025138.44405-12-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230908025138.44405-1-takahiro.akashi@linaro.org> References: <20230908025138.44405-1-takahiro.akashi@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean This command, "scmi", may provide a command line interface to various SCMI protocols. It supports at least initially SCMI base protocol and is intended mainly for debug purpose. Signed-off-by: AKASHI Takahiro Reviewed-by: Simon Glass Reviewed-by: Etienne Carriere --- v3 * describe that arguments are in hex at a help message * modify the code for dynamically allocated agent names v2 * remove sub command category, 'scmi base', for simplicity --- cmd/Kconfig | 9 ++ cmd/Makefile | 1 + cmd/scmi.c | 337 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 347 insertions(+) create mode 100644 cmd/scmi.c diff --git a/cmd/Kconfig b/cmd/Kconfig index 43ca10f69ccf..f46152ace7d8 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2533,6 +2533,15 @@ config CMD_CROS_EC a number of sub-commands for performing EC tasks such as updating its flash, accessing a small saved context area and talking to the I2C bus behind the EC (if there is one). + +config CMD_SCMI + bool "Enable scmi command" + depends on SCMI_FIRMWARE + default n + help + This command provides user interfaces to several SCMI (System + Control and Management Interface) protocols available on Arm + platforms to manage system resources. endmenu menu "Filesystem commands" diff --git a/cmd/Makefile b/cmd/Makefile index 9bebf321c397..ad3810b17e93 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -158,6 +158,7 @@ obj-$(CONFIG_CMD_SATA) += sata.o obj-$(CONFIG_CMD_NVME) += nvme.o obj-$(CONFIG_SANDBOX) += sb.o obj-$(CONFIG_CMD_SF) += sf.o +obj-$(CONFIG_CMD_SCMI) += scmi.o obj-$(CONFIG_CMD_SCSI) += scsi.o disk.o obj-$(CONFIG_CMD_SHA1SUM) += sha1sum.o obj-$(CONFIG_CMD_SEAMA) += seama.o diff --git a/cmd/scmi.c b/cmd/scmi.c new file mode 100644 index 000000000000..5efec8ad87fd --- /dev/null +++ b/cmd/scmi.c @@ -0,0 +1,337 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * SCMI (System Control and Management Interface) utility command + * + * Copyright (c) 2023 Linaro Limited + * Author: AKASHI Takahiro + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include /* uclass_get_device */ +#include +#include + +static struct udevice *agent; +static struct udevice *base_proto; + +struct { + enum scmi_std_protocol id; + const char *name; +} protocol_name[] = { + {SCMI_PROTOCOL_ID_BASE, "Base"}, + {SCMI_PROTOCOL_ID_POWER_DOMAIN, "Power domain management"}, + {SCMI_PROTOCOL_ID_SYSTEM, "System power management"}, + {SCMI_PROTOCOL_ID_PERF, "Performance domain management"}, + {SCMI_PROTOCOL_ID_CLOCK, "Clock management"}, + {SCMI_PROTOCOL_ID_SENSOR, "Sensor management"}, + {SCMI_PROTOCOL_ID_RESET_DOMAIN, "Reset domain management"}, + {SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN, "Voltage domain management"}, +}; + +/** + * get_proto_name() - get the name of SCMI protocol + * + * @id: SCMI Protocol ID + * + * Get the printable name of the protocol, @id + * + * Return: Name string on success, NULL on failure + */ +static const char *get_proto_name(enum scmi_std_protocol id) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(protocol_name); i++) + if (id == protocol_name[i].id) + return protocol_name[i].name; + + return NULL; +} + +/** + * do_scmi_info() - get the information of SCMI services + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * + * Get the information of SCMI services using various interfaces + * provided by the Base protocol. + * + * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure + */ +static int do_scmi_info(struct cmd_tbl *cmdtp, int flag, int argc, + char * const argv[]) +{ + u32 agent_id, num_protocols; + u8 *agent_name, *protocols; + int i, ret; + + if (argc != 1) + return CMD_RET_USAGE; + + printf("SCMI device: %s\n", agent->name); + printf(" protocol version: 0x%x\n", scmi_version(agent)); + printf(" # of agents: %d\n", scmi_num_agents(agent)); + for (i = 0; i < scmi_num_agents(agent); i++) { + ret = scmi_base_discover_agent(base_proto, i, &agent_id, + &agent_name); + if (ret) { + if (ret != -EOPNOTSUPP) + printf("base_discover_agent() failed for id: %d (%d)\n", + i, ret); + break; + } + printf(" %c%2d: %s\n", i == scmi_agent_id(agent) ? '>' : ' ', + i, agent_name); + free(agent_name); + } + printf(" # of protocols: %d\n", scmi_num_protocols(agent)); + num_protocols = scmi_num_protocols(agent); + protocols = scmi_protocols(agent); + if (protocols) + for (i = 0; i < num_protocols; i++) + printf(" %s\n", get_proto_name(protocols[i])); + printf(" vendor: %s\n", scmi_vendor(agent)); + printf(" sub vendor: %s\n", scmi_sub_vendor(agent)); + printf(" impl version: 0x%x\n", scmi_impl_version(agent)); + + return CMD_RET_SUCCESS; +} + +/** + * do_scmi_set_dev() - set access permission to device + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * + * Set access permission to device with SCMI_BASE_SET_DEVICE_PERMISSIONS + * + * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure + */ +static int do_scmi_set_dev(struct cmd_tbl *cmdtp, int flag, int argc, + char * const argv[]) +{ + u32 agent_id, device_id, flags, attributes; + char *end; + int ret; + + if (argc != 4) + return CMD_RET_USAGE; + + agent_id = simple_strtoul(argv[1], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + device_id = simple_strtoul(argv[2], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + flags = simple_strtoul(argv[3], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + ret = scmi_base_protocol_message_attrs(base_proto, + SCMI_BASE_SET_DEVICE_PERMISSIONS, + &attributes); + if (ret) { + printf("This operation is not supported\n"); + return CMD_RET_FAILURE; + } + + ret = scmi_base_set_device_permissions(base_proto, agent_id, + device_id, flags); + if (ret) { + printf("%s access to device:%u failed (%d)\n", + flags ? "Allowing" : "Denying", device_id, ret); + return CMD_RET_FAILURE; + } + + return CMD_RET_SUCCESS; +} + +/** + * do_scmi_set_proto() - set protocol permission to device + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * + * Set protocol permission to device with SCMI_BASE_SET_PROTOCOL_PERMISSIONS + * + * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure + */ +static int do_scmi_set_proto(struct cmd_tbl *cmdtp, int flag, int argc, + char * const argv[]) +{ + u32 agent_id, device_id, protocol_id, flags, attributes; + char *end; + int ret; + + if (argc != 5) + return CMD_RET_USAGE; + + agent_id = simple_strtoul(argv[1], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + device_id = simple_strtoul(argv[2], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + protocol_id = simple_strtoul(argv[3], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + flags = simple_strtoul(argv[4], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + ret = scmi_base_protocol_message_attrs(base_proto, + SCMI_BASE_SET_PROTOCOL_PERMISSIONS, + &attributes); + if (ret) { + printf("This operation is not supported\n"); + return CMD_RET_FAILURE; + } + + ret = scmi_base_set_protocol_permissions(base_proto, agent_id, + device_id, protocol_id, + flags); + if (ret) { + printf("%s access to protocol:0x%x on device:%u failed (%d)\n", + flags ? "Allowing" : "Denying", protocol_id, device_id, + ret); + return CMD_RET_FAILURE; + } + + return CMD_RET_SUCCESS; +} + +/** + * do_scmi_reset() - reset platform resource settings + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * + * Reset platform resource settings with BASE_RESET_AGENT_CONFIGURATION + * + * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure + */ +static int do_scmi_reset(struct cmd_tbl *cmdtp, int flag, int argc, + char * const argv[]) +{ + u32 agent_id, flags, attributes; + char *end; + int ret; + + if (argc != 3) + return CMD_RET_USAGE; + + agent_id = simple_strtoul(argv[1], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + flags = simple_strtoul(argv[2], &end, 16); + if (*end != '\0') + return CMD_RET_USAGE; + + ret = scmi_base_protocol_message_attrs(base_proto, + SCMI_BASE_RESET_AGENT_CONFIGURATION, + &attributes); + if (ret) { + printf("Reset is not supported\n"); + return CMD_RET_FAILURE; + } + + ret = scmi_base_reset_agent_configuration(base_proto, agent_id, flags); + if (ret) { + printf("Reset failed (%d)\n", ret); + return CMD_RET_FAILURE; + } + + return CMD_RET_SUCCESS; +} + +static struct cmd_tbl cmd_scmi_sub[] = { + U_BOOT_CMD_MKENT(info, CONFIG_SYS_MAXARGS, 1, + do_scmi_info, "", ""), + U_BOOT_CMD_MKENT(perm_dev, CONFIG_SYS_MAXARGS, 1, + do_scmi_set_dev, "", ""), + U_BOOT_CMD_MKENT(perm_proto, CONFIG_SYS_MAXARGS, 1, + do_scmi_set_proto, "", ""), + U_BOOT_CMD_MKENT(reset, CONFIG_SYS_MAXARGS, 1, + do_scmi_reset, "", ""), +}; + +/** + * do_scmi() - SCMI utility + * + * @cmdtp: Command table + * @flag: Command flag + * @argc: Number of arguments + * @argv: Argument array + * + * Provide user interfaces to SCMI protocols. + * + * Return: CMD_RET_SUCCESS on success, + * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure + */ +static int do_scmi(struct cmd_tbl *cmdtp, int flag, + int argc, char *const argv[]) +{ + struct cmd_tbl *cp; + + if (argc < 2) + return CMD_RET_USAGE; + + argc--; argv++; + + if (!agent) { + if (uclass_get_device(UCLASS_SCMI_AGENT, 0, &agent)) { + printf("Cannot find any SCMI agent\n"); + return CMD_RET_FAILURE; + } + } + + if (!base_proto) + base_proto = scmi_get_protocol(agent, SCMI_PROTOCOL_ID_BASE); + if (!base_proto) { + printf("SCMI base protocol not found\n"); + return CMD_RET_FAILURE; + } + + cp = find_cmd_tbl(argv[0], cmd_scmi_sub, ARRAY_SIZE(cmd_scmi_sub)); + if (!cp) + return CMD_RET_USAGE; + + return cp->cmd(cmdtp, flag, argc, argv); +} + +static char scmi_help_text[] = + " - SCMI utility\n" + " info - get the info of SCMI services\n" + " perm_dev \n" + " - set access permission to device\n" + " perm_proto " + " \n" + " - set protocol permission to device\n" + " reset \n" + " - reset platform resource settings\n" + ""; + +U_BOOT_CMD(scmi, CONFIG_SYS_MAXARGS, 0, do_scmi, "SCMI utility", + scmi_help_text);