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arm64: topology: Do not warn on missing AMU in cpuhp_topology_online()

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When CONFIG_CPUMASK_OFFSTACK is not enabled, and resuming from s2ram on
Renesas R-Car H3 (big.LITTLE 4x Cortex-A57 + 4x Cortex-A53), during
enabling of the first little core, a warning message is printed:

    AMU: CPU[4] doesn't support AMU counters

This confuses users, as during boot amu_fie_setup() does not print such
a message, unless debugging is enabled (freq_counters_valid() prints
"CPU%d: counters are not supported.\n" at debug level in that case).

Hence drop the warning, freq_counters_valid() has already printed a
debug message anyway.

Fixes: 6fd9be0b7b ("arm64: topology: Handle AMU FIE setup on CPU hotplug")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Geert Uytterhoeven 2026-01-15 09:51:45 +01:00 committed by Will Deacon
parent 6fd9be0b7b
commit 747d5b6735
1 changed files with 0 additions and 1 deletions
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arch/arm64/kernel/topology.c
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@ -332,7 +332,6 @@ static int cpuhp_topology_online(unsigned int cpu)
* may use different source of the freq scale.
*/
if (!freq_counters_valid(cpu)) {
pr_warn("CPU[%u] doesn't support AMU counters\n", cpu);
topology_clear_scale_freq_source(SCALE_FREQ_SOURCE_ARCH,
policy->related_cpus);
cpumask_andnot(amu_fie_cpus, amu_fie_cpus, policy->related_cpus);