diff options
Diffstat (limited to 'arch/powerpc/include/asm/topology.h')
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 8a4d4f4d9749..66ed5fe1b718 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -131,17 +131,51 @@ static inline int cpu_to_coregroup_id(int cpu) #ifdef CONFIG_SMP #include <asm/cputable.h> +struct cpumask *cpu_coregroup_mask(int cpu); +const struct cpumask *cpu_die_mask(int cpu); +int cpu_die_id(int cpu); + #ifdef CONFIG_PPC64 #include <asm/smp.h> #define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu)) - -#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) -#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) -#define topology_core_id(cpu) (cpu_to_core_id(cpu)) +#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) +#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) +#define topology_core_id(cpu) (cpu_to_core_id(cpu)) +#define topology_die_id(cpu) (cpu_die_id(cpu)) +#define topology_die_cpumask(cpu) (cpu_die_mask(cpu)) #endif #endif +#ifdef CONFIG_HOTPLUG_SMT +#include <linux/cpu_smt.h> +#include <linux/cpumask.h> +#include <asm/cputhreads.h> + +static inline bool topology_is_primary_thread(unsigned int cpu) +{ + return cpu == cpu_first_thread_sibling(cpu); +} +#define topology_is_primary_thread topology_is_primary_thread + +static inline bool topology_smt_thread_allowed(unsigned int cpu) +{ + return cpu_thread_in_core(cpu) < cpu_smt_num_threads; +} + +#define topology_is_core_online topology_is_core_online +static inline bool topology_is_core_online(unsigned int cpu) +{ + int i, first_cpu = cpu_first_thread_sibling(cpu); + + for (i = first_cpu; i < first_cpu + threads_per_core; ++i) { + if (cpu_online(i)) + return true; + } + return false; +} +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_TOPOLOGY_H */ |