opensbi.git/include/sbi/sbi_ecall_interface.h, branch v1.5

lib: sbi: add support for firmware features extension

2024-06-19T12:39:22Z

This extension allows the software running in supervisor mode to control the behavior of various features of the SBI [1]. Implement the support for such extension. Link: https://lists.riscv.org/g/tech-prs/message/924 [1] Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: sse: fix typos, comments and spacing errors

2024-05-07T11:54:11Z

Fix some errors spotted by Samuel while reviewing the SSE implementation. Signed-off-by: Clément Léger Reported-by: Samuel Holland Reviewed-by: Anup Patel

lib: sbi: Add support for Supervisor Software Events extension

2024-04-05T10:17:30Z

This extension [1] allows to deliver events from SBI to supervisor via a software mechanism. This extension defines events (either local or global) which are signaled by the SBI on specific signal sources (IRQ, exceptions, etc) and are injected to be executed in supervisor mode. [1] https://lists.riscv.org/g/tech-prs/message/798 Signed-off-by: Clément Léger Reviewed-by: Himanshu Chauhan Reviewed-by: Anup Patel

include: sbi: Add SBI debug trigger extension related defines

2024-01-10T05:25:49Z

This patch adds defines for SBI debug trigger extension and function IDs to access the extension. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel

lib: sbi_pmu: Add PMU snapshot definitions

2023-12-08T17:20:21Z

OpenSBI doesn't support SBI PMU snapshot yet as there is not much benefit unless the multiple counters overflow at the same time. Just add the definition and return not supported error at this moment. The default returned error is also not supported. Thus, no functional change intended. Reviewed-by: Anup Patel Signed-off-by: Atish Patra

lib: sbi_pmu: Align the event type offset as per SBI specification

2023-04-07T04:36:59Z

The bits encoded in event_idx[19:16] indicate the event type, with an offset of 16 instead of 20. Fixes: 13d40f21d588 ("lib: sbi: Add PMU support") Signed-off-by: Yu Chien Peter Lin Reviewed-by: Andrew Jones Reviewed-by: Xiang W

include: Add defines for SBI CPPC extension

2023-04-07T04:05:06Z

Add SBI CPPC extension related defines to the SBI ecall interface header. Signed-off-by: Sunil V L Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi_pmu: Reserve space for implementation specific firmware events

2023-03-10T08:30:22Z

We reserve space for SBI implementation specific custom firmware events which can be used by M-mode firmwares and HS-mode hypervisors for their own use. This reserved space is intentionally large to ensure that SBI implementation has enough space to accommodate platform specific firmware events as well. Signed-off-by: Mayuresh Chitale Reviewed-by: Atish Patra Reviewed-by: Anup Patel

lib: sbi_pmu: Implement sbi_pmu_counter_fw_read_hi

2023-03-10T08:30:07Z

To support 64 bit firmware counters on RV32 systems, we implement sbi_pmu_counter_fw_read_hi() which returns the upper 32 bits of the firmware counter value. On RV64 (or higher) systems, this function will always return zero. Signed-off-by: Mayuresh Chitale Reviewed-by: Atish Patra 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