diff options
| author | Jing Zhang <renyu.zj@linux.alibaba.com> | 2023-09-25 11:22:32 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-09-29 16:24:59 +0100 |
| commit | 7f949f6f54ff593123ab95b6247bfa4542a65580 (patch) | |
| tree | 2ffe3bf3c87b40c51011ab635d40c0b19625eed1 /drivers/perf | |
| parent | 44a5b6b5c7fee5146572b4c57f0d9d9c398d1033 (diff) | |
perf/arm-cmn: Fix the unhandled overflow status of counter 4 to 7
The register por_dt_pmovsr Bits[7:0] indicates overflow from counters 7
to 0. But in arm_cmn_handle_irq(), only handled the overflow status of
Bits[3:0] which results in unhandled overflow status of counters 4 to 7.
So let the overflow status of DTC counters 4 to 7 to be handled.
Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver")
Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/1695612152-123633-1-git-send-email-renyu.zj@linux.alibaba.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/arm-cmn.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 913dc04b3a40..6b50bc551984 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -1972,7 +1972,7 @@ static irqreturn_t arm_cmn_handle_irq(int irq, void *dev_id) u64 delta; int i; - for (i = 0; i < CMN_DTM_NUM_COUNTERS; i++) { + for (i = 0; i < CMN_DT_NUM_COUNTERS; i++) { if (status & (1U << i)) { ret = IRQ_HANDLED; if (WARN_ON(!dtc->counters[i])) |