kernel/linux.git/include/linux/firmware/intel, branch v6.19.11

firmware: stratix10-svc: Add Multi SVC clients support

2026-03-25T10:13:18+00:00

[ Upstream commit 22fd7f7fed2ae3702f90d1985c326354e86b9c75 ] In the current implementation, SVC client drivers such as socfpga-hwmon, intel_fcs, stratix10-soc, stratix10-rsu each send an SMC command that triggers a single thread in the stratix10-svc driver. Upon receiving a callback, the initiating client driver sends a stratix10-svc-done signal, terminating the thread without waiting for other pending SMC commands to complete. This leads to a timeout issue in the firmware SVC mailbox service when multiple client drivers send SMC commands concurrently. To resolve this issue, a dedicated thread is now created per channel. The stratix10-svc driver will support up to the number of channels defined by SVC_NUM_CHANNEL. Thread synchronization is handled using a mutex to prevent simultaneous issuance of SMC commands by multiple threads. SVC_NUM_DATA_IN_FIFO is reduced from 32 to 8, since each channel now has its own dedicated FIFO and the SDM processes commands one at a time. 8 entries per channel is sufficient while keeping the total aggregate capacity the same (4 channels x 8 = 32 entries). Additionally, a thread task is now validated before invoking kthread_stop when the user aborts, ensuring safe termination. Timeout values have also been adjusted to accommodate the increased load from concurrent client driver activity. Fixes: 7ca5ce896524 ("firmware: add Intel Stratix10 service layer driver") Cc: stable@vger.kernel.org Signed-off-by: Ang Tien Sung Signed-off-by: Fong, Yan Kei Signed-off-by: Muhammad Amirul Asyraf Mohamad Jamian Link: https://lore.kernel.org/all/20260305093151.2678-1-muhammad.amirul.asyraf.mohamad.jamian@altera.com Signed-off-by: Dinh Nguyen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: fix make htmldocs warning

2025-11-24T16:49:12+00:00

Stephen Rothwell reports htmldocs warnings when merging char-misc tree: WARNING: include/linux/firmware/intel/stratix10-svc-client.h:22 This comment starts with '/**', but isn't a kernel-doc comment. WARNING: include/linux/firmware/intel/stratix10-svc-client.h:184 Enum value 'COMMAND_HWMON_READTEMP' not described in enum 'stratix10_svc_command_code' WARNING: include/linux/firmware/intel/stratix10-svc-client.h:184 Enum value 'COMMAND_HWMON_READVOLT' not described in enum 'stratix10_svc_command_code' WARNING: include/linux/firmware/intel/stratix10-svc-client.h:307 function parameter 'cb_arg' not described in 'async_callback_t' Fixes: 4f49088c1625 ("firmware: stratix10-svc: Add definition for voltage and temperature sensor") Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/linux-next/20251114153920.1c5df700@canb.auug.org.au/ Signed-off-by: Dinh Nguyen Link: https://patch.msgid.link/20251114185815.358423-3-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: Add support for RSU commands in asynchronous framework

2025-11-13T12:32:58+00:00

Integrate Remote System Update(RSU) service commands into the asynchronous framework for communicating with SDM. This allows the RSU commands to be processed asynchronously, improving the responsiveness of the Stratix10 service channel. The asynchronous framework now supports the following RSU commands: * COMMAND_RSU_GET_SPT_TABLE * COMMAND_RSU_STATUS * COMMAND_RSU_NOTIFY Signed-off-by: Mahesh Rao Reviewed-by: Matthew Gerlach Signed-off-by: Dinh Nguyen

firmware: stratix10-svc: Add support for async communication

2025-11-13T12:32:58+00:00

Introduce support for asynchronous communication with the Stratix10 service channel. Define new structures to enable asynchronous messaging with the Secure Device Manager (SDM). Add and remove asynchronous support for existing channels. Implement initialization and cleanup routines for the asynchronous framework. Enable sending and polling of messages to the SDM asynchronously. The new public functions added are: - stratix10_svc_add_async_client: Adds a client to the service channel. - stratix10_svc_remove_async_client: Removes an asynchronous client from the service channel. - stratix10_svc_async_send: Sends an asynchronous message to the SDM mailbox in EL3 secure firmware. - stratix10_svc_async_poll: Polls the status of an asynchronous service request in EL3 secure firmware. - stratix10_svc_async_done: Marks an asynchronous transaction as complete and frees up the resources. These changes enhance the functionality of the Stratix10 service channel by allowing for more efficient and flexible communication with the firmware. Signed-off-by: Mahesh Rao Reviewed-by: Matthew Gerlach Signed-off-by: Dinh Nguyen

firmware: stratix10-svc: Add definition for voltage and temperature sensor

2025-11-13T12:32:57+00:00

Add entry in Stratix 10 Service Layer to support temperature and voltage sensor. Signed-off-by: Khairul Anuar Romli Signed-off-by: Dinh Nguyen

firmware: stratix10-svc: Generic Mailbox Command

2023-08-04T14:31:37+00:00

Add generic mailbox command that can support SDM command. User can use this command to send SDM mailbox command. User have to specified an input file which contain the command data and an output file for SDM response to be copied over. Signed-off-by: Teh Wen Ping Signed-off-by: Kah Jing Lee Signed-off-by: Dinh Nguyen Link: https://lore.kernel.org/r/20230727192907.982070-1-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: fix kernel-doc warning

2022-07-15T15:34:20+00:00

include/linux/firmware/intel/stratix10-svc-client.h:55: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Flag bit for COMMAND_RECONFIG Fixes: 4a4709d470e6 ("firmware: stratix10-svc: add new FCS commands") Signed-off-by: Dinh Nguyen Reported-by: Stephen Rothwell Link: https://lore.kernel.org/r/20220715150349.2413994-1-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: To support a command ATF Get Version

2022-07-14T14:55:09+00:00

We are to support a new SMC Command of hexadecimal 0x200 that returns the ATF Firmware major and minor version. Signed-off-by: Ang Tien Sung Signed-off-by: Dinh Nguyen Link: https://lore.kernel.org/r/20220711223140.2307945-6-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: extend svc to support RSU feature

2022-07-14T14:55:09+00:00

Extend Intel Stratix10 service layer driver to support new RSU DCMF status reporting. The status of each DCMF is reported. The currently used DCMF is used as reference, while the other three are compared against it to determine if they are corrupted. DCMF = Decision Configuration Management Firmware RSU = Remote System Update Signed-off-by: Radu Bacrau Signed-off-by: Ang Tien Sung Signed-off-by: Kah Jing Lee Signed-off-by: Dinh Nguyen Link: https://lore.kernel.org/r/20220711223140.2307945-5-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman

firmware: stratix10-svc: add new FCS commands

2022-07-14T14:55:09+00:00

Extending the fpga svc driver to support 6 new FPGA Crypto Service(FCS) commands. We are adding FCS SDOS data encryption and decryption, random number generator, image validation request, reading the data provision and certificate validation. Signed-off-by: Ang Tien Sung Signed-off-by: Dinh Nguyen Link: https://lore.kernel.org/r/20220711223140.2307945-3-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman