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Diffstat (limited to 'arch/arm64/kernel/topology.c')
| -rw-r--r-- | arch/arm64/kernel/topology.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c index b8026ec684ba..c8308befdb1e 100644 --- a/arch/arm64/kernel/topology.c +++ b/arch/arm64/kernel/topology.c @@ -223,6 +223,7 @@ static DEFINE_STATIC_KEY_FALSE(amu_fie_key); static int __init init_amu_fie(void) { + bool invariance_status = topology_scale_freq_invariant(); cpumask_var_t valid_cpus; bool have_policy = false; int ret = 0; @@ -269,6 +270,15 @@ static int __init init_amu_fie(void) if (!topology_scale_freq_invariant()) static_branch_disable(&amu_fie_key); + /* + * Task scheduler behavior depends on frequency invariance support, + * either cpufreq or counter driven. If the support status changes as + * a result of counter initialisation and use, retrigger the build of + * scheduling domains to ensure the information is propagated properly. + */ + if (invariance_status != topology_scale_freq_invariant()) + rebuild_sched_domains_energy(); + free_valid_mask: free_cpumask_var(valid_cpus); |