diff options
Diffstat (limited to 'arch/powerpc/include/asm/topology.h')
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 8a4d4f4d9749..da15b5efe807 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -143,5 +143,34 @@ static inline int cpu_to_coregroup_id(int 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 */ |