GitHub-Mirror/opensbi
2
0
Fork 0
mirror of https://github.com/Fishwaldo/opensbi.git synced 2025-03-15 19:31:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

3
lib/sbi/sbi_pmu.c
View file

@ -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;