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Tsirkin" , Huacai Chen , Florian Fainelli , Chen-Yu Tsai Cc: muhammad.nazim.amirul.nazle.asmade@altera.com, tze.yee.ng@altera.com, chee.nouk.phoon@altera.com, genevieve.chan@altera.com, adrian.ho.yin.ng@altera.com Subject: [PATCH v4 2/3] firmware: stratix10-svc: add FCS crypto-service commands for Agilex 5 Date: Fri, 4 Sep 2026 11:11:43 -0700 Message-ID: <61ee16df0b34c032f457ca4b833d0171cd307da8.1788537447.git.hang.suan.wang@altera.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: References: Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SJ0PR05CA0061.namprd05.prod.outlook.com (2603:10b6:a03:332::6) To MW4PR03MB6555.namprd03.prod.outlook.com (2603:10b6:303:126::12) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MW4PR03MB6555:EE_|SJ0PR03MB6567:EE_ X-MS-Office365-Filtering-Correlation-Id: 8b14e0b2-3786-40a1-b506-08df0aaffd19 X-MS-Exchange-AtpMessageProperties: SA X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|23010399003|1800799024|376014|10067099003|22082099003|56012099006|11063799006|6133799003|3023799007|55112099003|18002099003; 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The service layer has no command to drive it yet. Configure stratix10-svc about this interface so an in-kernel FCS client can use it: - add the client command codes COMMAND_FCS_CRYPTO_OPEN_SESSION, COMMAND_FCS_CRYPTO_CLOSE_SESSION and COMMAND_FCS_SDOS_DATA_EXT (all asynchronous) - add the matching asynchronous SIP SMC function IDs (INTEL_SIP_SMC_ASYNC_FCS_OPEN_CS_SESSION, INTEL_SIP_SMC_ASYNC_FCS_CLOSE_CS_SESSION and INTEL_SIP_SMC_ASYNC_FCS_CRYPTION_EXT) with their register-usage documentation; - match "intel,agilex5-svc" and register a "stratix10-fcs" child platform device, mirroring the existing RSU child, so an FCS client driver can bind without a dedicated device-tree node; - dispatch the new commands in the asynchronous send and response paths; for the SDOS data command, translate the source and destination buffers (allocated from the service-layer gen_pool) to physical addresses and pass them, together with the session/context IDs and owner ID, to the SDM. The transport is unchanged: Agilex 5 reuses the SIP SMC calling convention and async mailbox ABI the driver already implements, so no new transport mechanism is required. The SDOS SMMU-remapped address slots currently carry the buffer physical addresses; SMMU remapping support is added in a follow-up series. This is a prerequisite for the SoCFPGA FCS driver, the first in-tree consumer of these commands. Signed-off-by: Hang Suan Wang Reviewed-by: Dinh Nguyen --- drivers/firmware/stratix10-svc.c | 59 +++++++++++++++-- include/linux/firmware/intel/stratix10-smc.h | 64 +++++++++++++++++++ .../firmware/intel/stratix10-svc-client.h | 16 +++++ 3 files changed, 134 insertions(+), 5 deletions(-) diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index 07345efeef0c..8ead4a3c4a1b 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -46,6 +46,7 @@ /* stratix10 service layer clients */ #define STRATIX10_RSU "stratix10-rsu" +#define STRATIX10_FCS "stratix10-fcs" #define SOCFPGA_HWMON "socfpga-hwmon" /* Maximum number of SDM client IDs. */ @@ -106,10 +107,12 @@ struct stratix10_svc_chan; /** * struct stratix10_svc - svc private data * @stratix10_svc_rsu: pointer to stratix10 RSU device + * @stratix10_svc_fcs: pointer to stratix10 FCS device * @stratix10_svc_hwmon: pointer to stratix10 HWMON device */ struct stratix10_svc { struct platform_device *stratix10_svc_rsu; + struct platform_device *stratix10_svc_fcs; struct platform_device *stratix10_svc_hwmon; }; @@ -1398,6 +1401,30 @@ int stratix10_svc_async_send(struct stratix10_svc_chan *chan, void *msg, STRATIX10_SIP_SMC_SET_TRANSACTIONID_X1(handle->transaction_id); switch (p_msg->command) { + case COMMAND_FCS_CRYPTO_OPEN_SESSION: + args.a0 = INTEL_SIP_SMC_ASYNC_FCS_OPEN_CS_SESSION; + break; + case COMMAND_FCS_CRYPTO_CLOSE_SESSION: + args.a0 = INTEL_SIP_SMC_ASYNC_FCS_CLOSE_CS_SESSION; + args.a2 = p_msg->arg[0]; + break; + case COMMAND_FCS_SDOS_DATA_EXT: + args.a0 = INTEL_SIP_SMC_ASYNC_FCS_CRYPTION_EXT; + args.a2 = p_msg->arg[0]; + args.a3 = p_msg->arg[1]; + args.a4 = p_msg->arg[2]; + /* payloads are allocated from the svc gen_pool; pass phys addr */ + args.a5 = gen_pool_virt_to_phys(ctrl->genpool, + (unsigned long)p_msg->payload); + args.a6 = p_msg->payload_length; + args.a7 = gen_pool_virt_to_phys(ctrl->genpool, + (unsigned long)p_msg->payload_output); + args.a8 = p_msg->payload_length_output; + args.a9 = p_msg->arg[3]; + /* SMMU remapping is added later; pass phys addr for now */ + args.a10 = args.a5; + args.a11 = args.a7; + break; case COMMAND_RSU_GET_SPT_TABLE: args.a0 = INTEL_SIP_SMC_ASYNC_RSU_GET_SPT; break; @@ -1495,8 +1522,13 @@ static int stratix10_svc_async_prepare_response(struct stratix10_svc_chan *chan, data->status = STRATIX10_GET_SDM_STATUS_CODE(handle->res.a1); switch (p_msg->command) { + case COMMAND_FCS_CRYPTO_CLOSE_SESSION: case COMMAND_RSU_NOTIFY: break; + case COMMAND_FCS_CRYPTO_OPEN_SESSION: + case COMMAND_FCS_SDOS_DATA_EXT: + data->kaddr1 = (void *)&handle->res.a2; + break; case COMMAND_RSU_GET_SPT_TABLE: data->kaddr1 = (void *)&handle->res.a2; data->kaddr2 = (void *)&handle->res.a3; @@ -2004,6 +2036,7 @@ EXPORT_SYMBOL_GPL(stratix10_svc_free_memory); static const struct of_device_id stratix10_svc_drv_match[] = { {.compatible = "intel,stratix10-svc"}, {.compatible = "intel,agilex-svc"}, + {.compatible = "intel,agilex5-svc"}, {}, }; @@ -2107,7 +2140,18 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) ret = platform_device_add(svc->stratix10_svc_rsu); if (ret) - goto err_put_device; + goto err_put_rsu; + + svc->stratix10_svc_fcs = platform_device_alloc(STRATIX10_FCS, 0); + if (!svc->stratix10_svc_fcs) { + dev_err(dev, "failed to allocate %s device\n", STRATIX10_FCS); + ret = -ENOMEM; + goto err_unregister_rsu; + } + + ret = platform_device_add(svc->stratix10_svc_fcs); + if (ret) + goto err_put_fcs; if (IS_ENABLED(CONFIG_SENSORS_ALTERA_SOCFPGA_HWMON)) { svc->stratix10_svc_hwmon = @@ -2139,10 +2183,14 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) err_unregister_clients: if (svc->stratix10_svc_hwmon) platform_device_unregister(svc->stratix10_svc_hwmon); - if (svc->stratix10_svc_rsu) - platform_device_unregister(svc->stratix10_svc_rsu); + platform_device_unregister(svc->stratix10_svc_fcs); + goto err_unregister_rsu; +err_put_fcs: + platform_device_put(svc->stratix10_svc_fcs); +err_unregister_rsu: + platform_device_unregister(svc->stratix10_svc_rsu); goto err_free_fifos; -err_put_device: +err_put_rsu: platform_device_put(svc->stratix10_svc_rsu); err_free_fifos: /* only remove from list if list_add_tail() was reached */ @@ -2164,9 +2212,10 @@ static void stratix10_svc_drv_remove(struct platform_device *pdev) struct stratix10_svc_controller *ctrl = platform_get_drvdata(pdev); struct stratix10_svc *svc = ctrl->svc; - platform_device_unregister(svc->stratix10_svc_rsu); if (svc->stratix10_svc_hwmon) platform_device_unregister(svc->stratix10_svc_hwmon); + platform_device_unregister(svc->stratix10_svc_fcs); + platform_device_unregister(svc->stratix10_svc_rsu); stratix10_svc_async_exit(ctrl); diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h index 366309260121..75a39e7190af 100644 --- a/include/linux/firmware/intel/stratix10-smc.h +++ b/include/linux/firmware/intel/stratix10-smc.h @@ -669,6 +669,70 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE) #define INTEL_SIP_SMC_FCS_GET_PROVISION_DATA \ INTEL_SIP_SMC_STD_CALL_VAL(INTEL_SIP_SMC_FUNCID_FCS_GET_PROVISION_DATA) +/** + * Request INTEL_SIP_SMC_ASYNC_FCS_CRYPTION_EXT + * Async call to perform encryption/decryption + * + * Call register usage: + * a0 INTEL_SIP_SMC_ASYNC_FCS_CRYPTION_EXT + * a1 transaction job id + * a2 session ID + * a3 context ID + * a4 cryption operating mode (1 for encryption and 0 for decryption) + * a5 physical address of source + * a6 size of source + * a7 physical address of destination + * a8 size of destination + * a9 sdos ownership + * a10 smmu remapped address of source + * a11 smmu remapped address of destination + * a12-a17 not used + * + * Return status: + * a0 INTEL_SIP_SMC_STATUS_OK or INTEL_SIP_SMC_STATUS_ERROR + * a1-a17 not used + */ +#define INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_CRYPTION_EXT (0x12F) +#define INTEL_SIP_SMC_ASYNC_FCS_CRYPTION_EXT \ + INTEL_SIP_SMC_ASYNC_VAL(INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_CRYPTION_EXT) + +/** + * Request INTEL_SIP_SMC_ASYNC_FCS_OPEN_CS_SESSION + * Async call to open and establish a crypto service session with firmware + * + * Call register usage: + * a0 INTEL_SIP_SMC_FCS_OPEN_CRYPTO_SERVICE_SESSION + * a1 transaction job id + * a2-a17 not used + * + * Return status: + * a0 INTEL_SIP_SMC_STATUS_OK ,INTEL_SIP_SMC_STATUS_REJECTED + * or INTEL_SIP_SMC_STATUS_BUSY + * a1-a17 not used + */ +#define INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_OPEN_CS_SESSION (0x13A) +#define INTEL_SIP_SMC_ASYNC_FCS_OPEN_CS_SESSION \ + INTEL_SIP_SMC_ASYNC_VAL(INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_OPEN_CS_SESSION) + +/** + * Request INTEL_SIP_SMC_ASYNC_FCS_CLOSE_CS_SESSION + * Async call to close a service session + * + * Call register usage: + * a0 INTEL_SIP_SMC_ASYNC_FCS_CLOSE_CS_SESSION + * a1 transaction job id + * a2 session ID + * a3-a17 not used + * + * Return status: + * a0 INTEL_SIP_SMC_STATUS_OK ,INTEL_SIP_SMC_STATUS_REJECTED + * or INTEL_SIP_SMC_STATUS_BUSY + * a1-a17 not used + */ +#define INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_CLOSE_CS_SESSION (0x13B) +#define INTEL_SIP_SMC_ASYNC_FCS_CLOSE_CS_SESSION \ + INTEL_SIP_SMC_ASYNC_VAL(INTEL_SIP_SMC_ASYNC_FUNC_ID_FCS_CLOSE_CS_SESSION) + /** * Request INTEL_SIP_SMC_HWMON_READTEMP * Sync call to request temperature diff --git a/include/linux/firmware/intel/stratix10-svc-client.h b/include/linux/firmware/intel/stratix10-svc-client.h index 9bb46c3cb0f8..ffc1ac7c9785 100644 --- a/include/linux/firmware/intel/stratix10-svc-client.h +++ b/include/linux/firmware/intel/stratix10-svc-client.h @@ -7,6 +7,8 @@ #ifndef __STRATIX10_SVC_CLIENT_H #define __STRATIX10_SVC_CLIENT_H +#include + /* * Service layer driver supports client names * @@ -122,6 +124,15 @@ struct stratix10_svc_chan; * @COMMAND_SMC_SVC_VERSION: Non-mailbox SMC SVC API Version, * return status is SVC_STATUS_OK * + * @COMMAND_FCS_CRYPTO_OPEN_SESSION: open the crypto service session(s), + * return status is SVC_STATUS_OK or SVC_STATUS_ERROR + * + * @COMMAND_FCS_CRYPTO_CLOSE_SESSION: close the crypto service session(s), + * return status is SVC_STATUS_OK or SVC_STATUS_ERROR + * + * @COMMAND_FCS_SDOS_DATA_EXT: extend SDOS data encryption & decryption, + * return status is SVC_STATUS_OK or SVC_STATUS_ERROR + * * @COMMAND_MBOX_SEND_CMD: send generic mailbox command, return status is * SVC_STATUS_OK or SVC_STATUS_ERROR * @@ -190,6 +201,11 @@ enum stratix10_svc_command_code { COMMAND_FCS_RANDOM_NUMBER_GEN, /* for general status poll */ COMMAND_POLL_SERVICE_STATUS = 40, + /* for crypto service */ + COMMAND_FCS_CRYPTO_OPEN_SESSION = 50, + COMMAND_FCS_CRYPTO_CLOSE_SESSION, + /* for extended SDOS encrypt/decrypt */ + COMMAND_FCS_SDOS_DATA_EXT = 82, /* for generic mailbox send command */ COMMAND_MBOX_SEND_CMD = 100, /* Non-mailbox SMC Call */ -- 2.43.7