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lib: sbi: pmu: fix usage of sbi_pmu_irq_bit()

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While sbi_pmu_irq_bit() was used to delegate irq to S-mode, LCOFIP usage
was still hardcoded in various places. This led to change the returned
value of sbi_pmu_irq_bit() to be a bit number rather than a bit mask
since it returns an 'int' and we need to obtain the bit number itself to
handle it in the IRQs handlers. Add a similar function to return the
irq mask which can also be used where the mask is required rather than
the bit itself.

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Clément Léger
2025-01-10 14:15:50 +01:00
committed by Anup Patel
parent bd613dd921
commit 3943ddbaab
6 changed files with 41 additions and 24 deletions
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lib/sbi/sbi_hart.c
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@@ -203,7 +203,7 @@ static int delegate_traps(struct sbi_scratch *scratch)
/* Send M-mode interrupts and most exceptions to S-mode */
interrupts = MIP_SSIP | MIP_STIP | MIP_SEIP;
interrupts |= sbi_pmu_irq_bit();
interrupts |= sbi_pmu_irq_mask();
exceptions = (1U << CAUSE_MISALIGNED_FETCH) | (1U << CAUSE_BREAKPOINT) |
(1U << CAUSE_USER_ECALL);