diff options
| -rw-r--r-- | arch/s390/kernel/early.c | 12 | ||||
| -rw-r--r-- | arch/s390/kernel/topology.c | 11 |
2 files changed, 14 insertions, 9 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 324f1c147a41..d756315b7985 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -364,6 +364,18 @@ static inline void save_vector_registers(void) #endif } +static int __init topology_setup(char *str) +{ + bool enabled; + int rc; + + rc = kstrtobool(str, &enabled); + if (!rc && !enabled) + S390_lowcore.machine_flags &= ~MACHINE_HAS_TOPOLOGY; + return rc; +} +early_param("topology", topology_setup); + static int __init disable_vector_extension(char *str) { S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX; diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 4d16495b4f01..7b2b19b0b294 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -38,7 +38,6 @@ static void set_topology_timer(void); static void topology_work_fn(struct work_struct *work); static struct sysinfo_15_1_x *tl_info; -static bool topology_enabled = true; static DECLARE_WORK(topology_work, topology_work_fn); /* @@ -59,7 +58,7 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) cpumask_t mask; cpumask_copy(&mask, cpumask_of(cpu)); - if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) + if (!MACHINE_HAS_TOPOLOGY) return mask; for (; info; info = info->next) { if (cpumask_test_cpu(cpu, &info->mask)) @@ -74,7 +73,7 @@ static cpumask_t cpu_thread_map(unsigned int cpu) int i; cpumask_copy(&mask, cpumask_of(cpu)); - if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) + if (!MACHINE_HAS_TOPOLOGY) return mask; cpu -= cpu % (smp_cpu_mtid + 1); for (i = 0; i <= smp_cpu_mtid; i++) @@ -428,12 +427,6 @@ static const struct cpumask *cpu_drawer_mask(int cpu) return &cpu_topology[cpu].drawer_mask; } -static int __init early_parse_topology(char *p) -{ - return kstrtobool(p, &topology_enabled); -} -early_param("topology", early_parse_topology); - static struct sched_domain_topology_level s390_topology[] = { { cpu_thread_mask, cpu_smt_flags, SD_INIT_NAME(SMT) }, { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) }, |