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lib: sbi_pmu: keep overflow interrupt of stopped hpm counter disabled

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After the hardware hpm counter is stopped, it should not raise any new
interrupt as it is already stopped. So add the hw_counter_disable_irq
callback to allow the custom pmu device to control this behavior.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Samuel Holland <samuel@sholland.org>
This commit is contained in:
Inochi Amaoto
2023-08-15 17:40:33 +08:00
committed by Anup Patel
parent c9a296d0ed
commit 901d3d7bff
1 changed files with 3 additions and 0 deletions
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3
lib/sbi/sbi_pmu.c
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@@ -482,6 +482,9 @@ static int pmu_ctr_stop_hw(uint32_t cidx)
if (!__test_bit(cidx, &mctr_inhbt)) {
__set_bit(cidx, &mctr_inhbt);
csr_write(CSR_MCOUNTINHIBIT, mctr_inhbt);
if (pmu_dev && pmu_dev->hw_counter_disable_irq) {
pmu_dev->hw_counter_disable_irq(cidx);
}
return 0;
} else
return SBI_EALREADY_STOPPED;