diff options
| -rw-r--r-- | arch/x86/include/asm/topology.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 8 | ||||
| -rw-r--r-- | kernel/cpu.c | 4 |
3 files changed, 2 insertions, 12 deletions
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index ae49ed4417d0..3235ba1e5b06 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -141,7 +141,6 @@ static inline int topology_max_smt_threads(void) int topology_update_package_map(unsigned int apicid, unsigned int cpu); int topology_update_die_map(unsigned int dieid, unsigned int cpu); int topology_phys_to_logical_pkg(unsigned int pkg); -bool topology_smt_supported(void); extern struct cpumask __cpu_primary_thread_mask; #define cpu_primary_thread_mask ((const struct cpumask *)&__cpu_primary_thread_mask) @@ -164,7 +163,6 @@ static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; } static inline int topology_max_die_per_package(void) { return 1; } static inline int topology_max_smt_threads(void) { return 1; } static inline bool topology_is_primary_thread(unsigned int cpu) { return true; } -static inline bool topology_smt_supported(void) { return false; } #endif /* !CONFIG_SMP */ static inline void arch_fix_phys_package_id(int num, u32 slot) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index e1aa2cd7734b..d4e897b820c4 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -327,14 +327,6 @@ static void notrace start_secondary(void *unused) } /** - * topology_smt_supported - Check whether SMT is supported by the CPUs - */ -bool topology_smt_supported(void) -{ - return smp_num_siblings > 1; -} - -/** * topology_phys_to_logical_pkg - Map a physical package id to a logical * @phys_pkg: The physical package id to map * diff --git a/kernel/cpu.c b/kernel/cpu.c index d7dd535cb5b5..70add058e77b 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -621,7 +621,7 @@ void __init cpu_smt_set_num_threads(unsigned int num_threads, { WARN_ON(!num_threads || (num_threads > max_threads)); - if (!topology_smt_supported()) + if (max_threads == 1) cpu_smt_control = CPU_SMT_NOT_SUPPORTED; cpu_smt_max_threads = max_threads; @@ -1801,7 +1801,7 @@ early_param("cpuhp.parallel", parallel_bringup_parse_param); static inline bool cpuhp_smt_aware(void) { - return topology_smt_supported(); + return cpu_smt_max_threads > 1; } static inline const struct cpumask *cpuhp_get_primary_thread_mask(void) |