diff options
Diffstat (limited to 'arch/x86/include/asm/topology.h')
| -rw-r--r-- | arch/x86/include/asm/topology.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 458c891a8273..caf41c4869a0 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -31,9 +31,9 @@ * CONFIG_NUMA. */ #include <linux/numa.h> +#include <linux/cpumask.h> #ifdef CONFIG_NUMA -#include <linux/cpumask.h> #include <asm/mpspec.h> #include <asm/percpu.h> @@ -139,23 +139,31 @@ 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); -int topology_phys_to_logical_die(unsigned int die, unsigned int cpu); -bool topology_is_primary_thread(unsigned int cpu); bool topology_smt_supported(void); -#else + +extern struct cpumask __cpu_primary_thread_mask; +#define cpu_primary_thread_mask ((const struct cpumask *)&__cpu_primary_thread_mask) + +/** + * topology_is_primary_thread - Check whether CPU is the primary SMT thread + * @cpu: CPU to check + */ +static inline bool topology_is_primary_thread(unsigned int cpu) +{ + return cpumask_test_cpu(cpu, cpu_primary_thread_mask); +} +#else /* CONFIG_SMP */ #define topology_max_packages() (1) static inline int topology_update_package_map(unsigned int apicid, unsigned int cpu) { return 0; } static inline int topology_update_die_map(unsigned int dieid, unsigned int cpu) { return 0; } static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; } -static inline int topology_phys_to_logical_die(unsigned int die, - unsigned int cpu) { 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 +#endif /* !CONFIG_SMP */ static inline void arch_fix_phys_package_id(int num, u32 slot) { |