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

lib: sbi: skip wait_for_coldboot when coolboot done

2023-12-11T04:06:57Z

When warmboot via HSM, coolboot has been completed and wait_for_coldboot can be skipped to speed up. Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: sbi_hart: Store PMP granularity as log base 2

2023-12-08T17:13:12Z

This minimizes the need to call log2roundup() to recover the log value. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi: Remove sbi_scratch_last_hartid() macro

2023-09-24T06:11:54Z

The sbi_scratch_last_hartid() macro is not of much use on platforms with really sparse hartids so let us replace use of this macro with other approaches. Signed-off-by: Anup Patel

lib: sbi: Prefer hartindex over hartid in IPI framework

2023-09-24T06:09:38Z

Let us prefer hartindex over hartid in IPI framework which in-turn forces IPI users to also prefer hartindex. 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: Remove sbi_platform_hart_index/invalid() functions

2023-09-24T06:09:30Z

The hartid to hartindex mapping is now tracked in sbi_scratch so we don't need sbi_platform_hart_index() and sbi_platform_hart_invalid() functions hence let us remove them. Signed-off-by: Anup Patel

lib: sbi_pmu: remove mhpm_count field in hart feature

2023-08-22T07:56:09Z

After supporting noncontigous hpm event and counters in opensbi, the number of hpm counters can be calculated by the mhpm_mask. So this field is unnecessary and can be removed to save some space. Signed-off-by: Inochi Amaoto Reviewed-by: Anup Patel

lib: sbi_pmu: Enable noncontigous hpm event and counters

2023-08-06T04:39:25Z

Platforms may implement hpm events/counters non contiguously but the current implementation assumes them to be always contigous. Add a bitmap that captures the hpm events/counters as implemented in the hardware and use it to set the max limit of hardware counters visible to the OS. Counters not implemented in the hardware can't be used by the OS because those wont be described in the DT. Signed-off-by: Mayuresh Chitale Reviewed-by: Anup Patel

lib: sbi: Change the order of PMP initialization

2023-07-13T07:12:06Z

Configure PMP at last when all other initializations have been done. Because if SMEPMP is detected, M-mode access to the S/U space will be rescinded. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel

lib: sbi: Print scratch size and usage at boot time

2023-06-05T10:16:22Z

The scratch space being a scarce resource so let us print it's size and usage at boot time. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones