[PATCH v4 1/3] arm64: topology: Set scale freq source only for the CPUs that have not been set before
From: Lifeng Zheng
Date: Thu Aug 14 2025 - 03:32:07 EST
The scale freq source of the CPUs in 'amu_fie_cpus' mask are already set to
AMU tick before, so in amu_fie_setup(), only the CPUs in the 'cpus' mask
should be set.
Signed-off-by: Lifeng Zheng <zhenglifeng1@xxxxxxxxxx>
---
arch/arm64/kernel/topology.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 5d07ee85bdae..9317a618bb87 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -373,7 +373,7 @@ static void amu_fie_setup(const struct cpumask *cpus)
cpumask_or(amu_fie_cpus, amu_fie_cpus, cpus);
- topology_set_scale_freq_source(&amu_sfd, amu_fie_cpus);
+ topology_set_scale_freq_source(&amu_sfd, cpus);
pr_debug("CPUs[%*pbl]: counters will be used for FIE.",
cpumask_pr_args(cpus));
--
2.33.0