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lib: sbi_pmu: keep overflow interrupt of stopped hpm counter disabled
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>
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@ -482,6 +482,9 @@ static int pmu_ctr_stop_hw(uint32_t cidx)
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if (!__test_bit(cidx, &mctr_inhbt)) {
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__set_bit(cidx, &mctr_inhbt);
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csr_write(CSR_MCOUNTINHIBIT, mctr_inhbt);
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if (pmu_dev && pmu_dev->hw_counter_disable_irq) {
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pmu_dev->hw_counter_disable_irq(cidx);
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}
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return 0;
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} else
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return SBI_EALREADY_STOPPED;
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