opensbi.git/lib/sbi/sbi_system.c, branch v0.9

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

include: sbi_ipi: Remove scratch parameter from most functions

2020-03-28T08:02:47Z

This patch removes scratch parameter from most sbi_ipi functions. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi_hsm: Remove scratch parameter from hart_started_mask() API

2020-03-19T03:53:12Z

The scratch parameter in sbi_hsm_hart_started_mask() API is now redundant hence removing it. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Atish Patra

include: Make sbi_current_hartid() as macro in riscv_asm.h

2020-03-13T06:52:02Z

The sbi_current_hartid() being a regular function is quite expensive because for callers it is a function call instead of a direct CSR read. This patch converts sbi_current_hartid() into a macro in riscv_asm.h. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: sbi_system: Use sbi_hsm_hart_started_mask() API

2020-03-11T10:00:23Z

This patch replaces use of sbi_hart_available_mask() API with sbi_hsm_hart_started_mask() API. Signed-off-by: Anup Patel Reviewed-by: Bin Meng