Export the get_cpu_with_amu_feat() function for use by
"cppc_cpufreq" to check if any CPU implements ARM's
Activity Monitor Unit (AMU). If AMU is available, then
for re-constructing the current CPU freq from its
counters, queue work on target CPU to read the counters
in a single call instead of reading them in separate
smp calls.
Signed-off-by: Sumit Gupta <sumitg@xxxxxxxxxx>
---
arch/arm64/kernel/cpufeature.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index d9345e9c0226..ec31da7043eb 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1917,6 +1917,7 @@ int get_cpu_with_amu_feat(void)
{
return cpumask_any(&amu_cpus);
}
+EXPORT_SYMBOL_GPL(get_cpu_with_amu_feat);
static void cpu_amu_enable(struct arm64_cpu_capabilities const *cap)
{
--
2.17.1
