opensbi.git/lib/sbi/sbi_system.c, branch v1.4

lib: sbi: Fix shift bug in sbi_system_reset

2023-12-26T15:58:34Z

There is a problem with judging whether the current hart belongs to hmask. If cur_hartid minus hbase is greater than BITS_PER_LONG, the previous hmask will also have a bit cleared incorrectly, which will cause some harts to lose ipi. Signed-off-by: Xiang W Reviewed-by: Anup Patel

include: sbi: Remove sbi_hartmask_for_each_hart() macro

2023-09-24T06:18:21Z

The sbi_hartmask_for_each_hart() macro is slow and has only one user so let us completely remove the sbi_hartmask_for_each_hart() macro. Signed-off-by: Anup Patel

lib: sbi: Extend sbi_hartmask to support both hartid and hartindex

2023-09-24T06:09:32Z

Currently, the sbi_hartmask is indexed by hartid which puts a limit on hartid to be less than SBI_HARTMASK_MAX_BITS. We extend the sbi_hartmask implementation to use hartindex and support updating sbi_hartmask using hartid. This removes the limit on hartid and existing code works largely unmodified. Signed-off-by: Xiang W Signed-off-by: Anup Patel

lib: sbi: Update system suspend to spec

2023-07-31T06:15:11Z

commit 68e66106120f ("SUSP: Add SBI_ERR_DENIED") of the SBI spec adds a new error code, SBI_ERR_DENIED, which is returned when entry criteria has not be meant. Update the system suspend implementation to return this error when it has detected that not all harts are in the STOPPED state. Signed-off-by: Andrew Jones Reviewed-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: Implement system suspend

2023-02-27T14:17:35Z

Fill the implementation of the system suspend ecall. A platform implementation of the suspend callbacks is still required for this to do anything. 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

treewide: Replace TRUE/FALSE with true/false

2023-01-06T11:56:35Z

C language standard uses true/false for the boolean type. Let's switch to that for better language compatibility. Signed-off-by: Bin Meng Reviewed-by: Anup Patel Reviewed-by: Samuel Holland Tested-by: Samuel Holland

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