opensbi

1,314 Commits 1 Branch 19 Tags

2 Commits

Author	SHA1	Message	Date
Alexandre GhitiandAnup Patel	674e0199b2	lib: sbi: Fix counter index calculation for SBI_PMU_CFG_FLAG_SKIP_MATCH As per the SBI specification, we should "unconditionally select the first counter from the set of counters specified by the counter_idx_base and counter_idx_mask", so implement this behaviour. Suggested-by: Atish Patra <atishp@atishpatra.org> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Atish Patra <atishp@rivosinc.com>	2023-04-17 09:26:28 +05:30
Alexandre GhitiandAnup Patel	bdb3c42bca	lib: sbi: Do not clear active_events for cycle/instret when stopping Those events are enabled by default and should not be reset afterwards since when using SBI_PMU_CFG_FLAG_SKIP_MATCH, it leads to unaccessible counters after the first use. Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Atish Patra <atishp@rivosinc.com>	2023-04-17 09:26:26 +05:30

Author

SHA1

Message

Date

Alexandre GhitiandAnup Patel

674e0199b2

lib: sbi: Fix counter index calculation for SBI_PMU_CFG_FLAG_SKIP_MATCH

As per the SBI specification, we should "unconditionally select the first
counter from the set of counters specified by the counter_idx_base and
counter_idx_mask", so implement this behaviour.

Suggested-by: Atish Patra <atishp@atishpatra.org>
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>

2023-04-17 09:26:28 +05:30

Alexandre GhitiandAnup Patel

bdb3c42bca

lib: sbi: Do not clear active_events for cycle/instret when stopping

Those events are enabled by default and should not be reset afterwards
since when using SBI_PMU_CFG_FLAG_SKIP_MATCH, it leads to unaccessible
counters after the first use.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>

2023-04-17 09:26:26 +05:30