opensbi.git/include/sbi_utils/mailbox, branch v1.7

lib: utils: Add Implementation ID and Version as RPMI MPXY attributes

2025-06-24T03:12:27Z

The latest frozen RPMI spec has added Implementation ID and Implementation Version as message protocol specific mpxy attributes. Add support for these. Signed-off-by: Rahul Pathak Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250618053854.2577299-1-rpathak@ventanamicro.com Signed-off-by: Anup Patel

lib: utils/mpxy: Remove p2a_db_index from RPMI system MSI attributes

2025-05-20T05:40:35Z

The discovery of P2A doorbell system MSI index is now through RPMI shared memory DT node so remove p2a_db_index from RPMI system MSI attributes and access it as a mailbox channel attribute. Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20250512083827.804151-5-apatel@ventanamicro.com Signed-off-by: Anup Patel

lib: utils/mailbox: Parse P2A doorbell system MSI index from DT

2025-05-20T05:40:35Z

The P2A doorbell system MSI index is expected to be discovered from device tree instead of RPMI system MSI service group attribute. This is based on ARC feedback before RPMI spec was frozen. Let's parse P2A doorbell system MSI index from device tree and also expose it as rpmi channel attribute to RPMI client drivers. Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20250512083827.804151-3-apatel@ventanamicro.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for System MSI service group

2025-02-13T05:40:03Z

The supervisor software can directly receive most of the system MSIs except P2A doorbell and MSIs preferred to be handled in M-mode. Add MPXY RPMI mailbox client driver for the System MSI service group. Signed-off-by: Anup Patel

include: sbi_utils: Update RPMI service group IDs and BASE service group

2025-02-13T05:40:03Z

The service group ID assignment and some of the BASE services have changes in the latest RPMI specification so let's update the RPMI implementation accordingly. Signed-off-by: Anup Patel Reviewed-by: Samuel Holland

lib: utils: Implement get_attribute() for the RPMI shared memory mailbox

2025-02-13T05:40:03Z

To allow clients query service group version of a RPMI mailbox channel, implement get_attribute() callback for the RPMI shared memory mailbox controller. Signed-off-by: Anup Patel

include: sbi_utils: Include mailbox.h in rpmi_mailbox.h header

2025-02-13T05:40:03Z

The rpmi_mailbox.h uses structures defined in mailbox.h so let's include mailbox.h in rpmi_mailbox.h header. Signed-off-by: Anup Patel Reviewed-by: Samuel Holland

lib: utils/mpxy: Add RPMI client driver for MPXY

2024-12-06T03:56:57Z

Add a generic RPMI mailbox client driver which provides a MPXY channel. Initially, this driver only supports RPMI clock service group but can be extended to support multiple RPMI service groups. Signed-off-by: Rahul Pathak Co-developed-by: Anup Patel Signed-off-by: Anup Patel

lib: utils/cppc: Add RPMI CPPC driver

2024-12-06T03:56:47Z

Add RPMI based driver for CPPC register read, write and probe. Signed-off-by: Subrahmanya Lingappa Co-developed-by: Rahul Pathak Signed-off-by: Rahul Pathak Co-developed-by: Sunil V L Signed-off-by: Sunil V L Signed-off-by: Anup Patel

lib: utils/hsm: Add RPMI HSM driver

2024-12-06T03:56:43Z

The RPMI HSM service group provides set of routine to query and control power states of a Hart. Add RPMI based Hart State Management (HSM) driver. Signed-off-by: Subrahmanya Lingappa Signed-off-by: Anup Patel