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[ Upstream commit7f949f6f54] 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:0ba64770a2("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> Signed-off-by: Sasha Levin <sashal@kernel.org>