Commit Graph

4 Commits

Author SHA1 Message Date
Subrahmanya Lingappa
33ee9b8240 lib: utils/hsm: Add RPMI HSM driver
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 <slingappa@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
2024-12-06 09:26:43 +05:30
Subrahmanya Lingappa
13f55f33a1 lib: utils/suspend: Add RPMI system suspend driver
Add RPMI based system suspend driver.

To test this, execute the follwoing in Linux:
 $ echo mem > /sys/power/state

To wake up, execute the following command on qemu monitor terminal:
 (qemu) system_wakeup

Signed-off-by: Subrahmanya Lingappa <slingappa@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
2024-12-06 09:26:32 +05:30
Rahul Pathak
6a26726e08 lib/utils: reset: Add RPMI System Reset driver
Add RPMI based driver for system reset and enable it in the generic
platform defconfig

Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
2024-12-06 09:26:27 +05:30
Rahul Pathak
91f46fb47e lib/utils: Add RPMI messaging protocol and shared memory transport support
The RISC-V Platform Management Interface (RPMI) defines a messaging protocol
and shared memory based transport for bi-directional communication with an
on-chip or external microcontroller.

To support RPMI in OpenSBI, add:
1) The RPMI messaging protocol defines and helper macros
2) A FDT mailbox driver for the RPMI shared memory transport

Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com>
Co-developed-by: Subrahmanya Lingappa <slingappa@ventanamicro.com>
Signed-off-by: Subrahmanya Lingappa <slingappa@ventanamicro.com>
Co-developed-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
2024-12-06 09:26:21 +05:30