opensbi.git/include/sbi/sbi_system.h, branch master

lib: sbi: Add system_resume callback for restoring the system

2025-10-28T05:58:09Z

The last core who performs the system suspend is responsible for restoring the system after waking up. Add the system_resume callback for restoring the system from suspend. Suggested-by: Anup Patel Signed-off-by: Nick Hu Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20251020-cache-upstream-v7-11-69a132447d8a@sifive.com Signed-off-by: Anup Patel

lib: sbi: Align system suspend errors with spec

2023-06-04T09:48:40Z

The spec says sbi_system_suspend() will return SBI_ERR_INVALID_PARAM when "sleep_type is reserved or is platform-specific and unimplemented" and SBI_ERR_NOT_SUPPORTED when sleep_type "is not reserved and is implemented, but the platform does not support it due to one or more missing dependencies." Ensure SBI_ERR_INVALID_PARAM is returned for reserved sleep types and that the system suspend driver can choose which of the two error types to return itself by returning an error from its check function rather than a boolean. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

platform: generic: Add system suspend test

2023-02-27T14:20:51Z

When the system-suspend-test property is present in the domain config node as shown below, implement system suspend with a simple 5 second delay followed by a WFI. This allows testing system suspend when the low-level firmware doesn't support it. / { chosen { opensbi-domains { compatible = "opensbi,domain,config"; system-suspend-test; }; Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi: Add system suspend skeleton

2023-02-27T14:13:52Z

Add the SUSP extension probe and ecall support, but for now the system suspend function is just a stub. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi: convert reset to list

2021-10-11T04:29:29Z

To support different handlers for different types of resets, we are adding a sbi_list of restart handlers. Instead of sbi_system_reset_set_device we use sbi_system_reset_add_device to reflect the actual meaning. Signed-off-by: Nikita Shubin Reviewed-by: Anup Patel

lib: sbi: Simplify system reset platform operations

2021-04-28T11:55:00Z

Instead of having system_reset_check() and system_reset() callbacks in platform operations, it will be much simpler for reset driver to directly register these operations as a device to the sbi_system implementation. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis

lib: sbi: Improve system reset platform operations

2020-12-01T11:40:31Z

To implement the SBI SRST extension, we need two platform operations for system reset: 1) system_reset_check() - This operation will check whether given reset type and reason are supported by the platform 2) system_reset() - This operation will do the actual platform system reset and it will not return if reset type and reason are supported by the platform This patch updates system reset related code everywhere as-per above. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi: Remove opensbi specific reset type defines

2020-12-01T11:35:12Z

We can now use the standard SBI SRST extension reset types instead of the opensbi specific (SBI_PLATFORM_RESET_xyz) reset types hence remove related opensbi specific defines. The "platform_" prefix of the reset type parameter of sbi_system_reset() function should also be removed. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

include: sbi_platform: Combine reboot and shutdown into one callback

2020-04-27T09:05:29Z

We can achieve shutdown, cold reboot, and warm reboot using just one sbi_platform callback so we combine system_reboot() and system_shutdown() callbacks into one system_reset() callback. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi_system: Remove scratch parameter and redundant functions

2020-03-28T08:02:52Z

This patch removes scratch parameter and redundant functions from sbi_system. Signed-off-by: Anup Patel Reviewed-by: Atish Patra