opensbi.git/lib/sbi/sbi_system.c, branch v1.2

lib: sbi: add priority for reset handler

2021-10-11T05:02:26Z

Let's make system_reset_check returning priority instead of only true/false. In that case 0 - means not supported, and anything above means priority that makes existing reset handlers being used in first place, unless it is decided to lower their priority. The handler with the most priority wins. Signed-off-by: Nikita Shubin 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: Rename sbi_hsm_hart_started_mask() function

2021-03-03T04:47:45Z

A hart can take interrupt in the new HSM states introduced by the SBI HSM suspend function (such as SUSPENDED state) so we rename sbi_hsm_hart_started_mask() to something more generic such as sbi_hsm_hart_interruptible_mask(). Signed-off-by: Anup Patel Reviewed-by: Atish Patra

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

lib: sbi: Extend sbi_system_reset() for domains

2020-10-20T08:33:40Z

The sbi_system_reset() should issue platform system reset only if domain of current HART is allowed to do system reset. This patch extends sbi_system_reset() as-per above. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi: Extend sbi_hsm_hart_started_mask() for domains

2020-10-20T06:02:40Z

The sbi_hsm_hart_started_mask() API should take one more parameter to allow caller specify domain under which started_mask is being generated. Further, the sbi_hsm_hart_started_mask() depends on sbi_hsm_hart_get_state() which also should return HART state under specified domain. This patch updates both sbi_hsm_hart_started_mask() and sbi_hsm_hart_get_state() as-per above. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis

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