diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 2336ee2aa44a..e6b50cd43ce5 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -12,6 +12,7 @@ */ #include +#include #include #include #include @@ -238,8 +239,20 @@ void store_cpu_topology(unsigned int cpuid) */ void __init init_cpu_topology(void) { + int cpu, ret; + reset_cpu_topology(); smp_wmb(); parse_dt_topology(); + + for_each_possible_cpu(cpu) { + ret = fetch_cache_info(cpu); + if (!ret) + continue; + /* CPUs without a usable CLIDR return -EOPNOTSUPP. */ + if (ret != -ENOENT && ret != -EOPNOTSUPP) + pr_err("Early cacheinfo failed, ret = %d\n", ret); + return; + } }