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Wed, 26 Feb 2020 07:18:54 +0000 From: peng.fan@nxp.com To: sudeep.holla@arm.com, robh+dt@kernel.org, mark.rutland@arm.com, robh@kernel.org Cc: viresh.kumar@linaro.org, f.fainelli@gmail.com, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, andre.przywara@arm.com, Peng Fan Subject: [PATCH V3 0/2] firmware: arm_scmi: add smc/hvc transports support Date: Wed, 26 Feb 2020 15:12:49 +0800 Message-Id: <1582701171-26842-1-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: SG2PR01CA0131.apcprd01.prod.exchangelabs.com (2603:1096:4:40::35) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR01CA0131.apcprd01.prod.exchangelabs.com (2603:1096:4:40::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2750.18 via Frontend Transport; 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X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: h2iyqcuYSyTSINsJCE5YWrbcPfexuSvWVR2uYbe3ycf2LjxfijWQ+9w+eLWTn1L3Z4yaWgv5vUV/9w00r4dWfalfH4DdvsDIzsoeuBf980WxJ8sVLxNORaTedhjnw/mg3bOP34uWb5jJHYIwk1aj9A== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: b15bc919-5b95-4401-9900-08d7ba8c22a0 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Feb 2020 07:18:53.7701 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: OPe6m7Nr/SJ6LQ1GVHJVNnABGEz6Svg/0ua14XZDtwfJ5FJHql25wpD8uNb4TPmrFGmEiUX/+qOJJA4xa6/1qg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6819 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Peng Fan V3: Add back arm,scmi-smc compatible string Change smc-id to arm,smc-id Directly use arm_smccc_1_1_invoke Add prot_id in scmi_chan_info for per protocol shmem usage. V2: patch 1/2: only add smc-id property patch 2/2: Parse smc/hvc from psci node Use prot_id as 2nd arg when issue smc/hvc Differentiate tranports using mboxes or smc-id property https://lore.kernel.org/patchwork/cover/1193435/ This is to add smc/hvc transports support, based on Viresh's v6. SCMI firmware could be implemented in EL3, S-EL1, NS-EL2 or other A core exception level. Then smc/hvc could be used. And for vendor specific firmware, a wrapper layer could added in EL3, S-EL1, NS-EL2 and etc to translate SCMI calls to vendor specific firmware calls. A new compatible string arm,scmi-smc is added. arm,scmi is still for mailbox transports. All protocol share same smc/hvc id, the protocol id will be take as 2nd arg when issue smc/hvc. Each protocol could use its own shmem or share the same shmem Per smc/hvc, only Tx supported. Peng Fan (2): dt-bindings: arm: arm,scmi: add smc/hvc transport firmware: arm_scmi: add smc/hvc transport Documentation/devicetree/bindings/arm/arm,scmi.txt | 3 +- drivers/firmware/arm_scmi/Makefile | 2 +- drivers/firmware/arm_scmi/common.h | 3 + drivers/firmware/arm_scmi/driver.c | 2 + drivers/firmware/arm_scmi/smc.c | 146 +++++++++++++++++++++ 5 files changed, 154 insertions(+), 2 deletions(-) create mode 100644 drivers/firmware/arm_scmi/smc.c