diff options
Diffstat (limited to 'include/asm-powerpc/cputhreads.h')
-rw-r--r-- | include/asm-powerpc/cputhreads.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/include/asm-powerpc/cputhreads.h b/include/asm-powerpc/cputhreads.h deleted file mode 100644 index fb11b0c459b8..000000000000 --- a/include/asm-powerpc/cputhreads.h +++ /dev/null @@ -1,71 +0,0 @@ -#ifndef _ASM_POWERPC_CPUTHREADS_H -#define _ASM_POWERPC_CPUTHREADS_H - -#include <linux/cpumask.h> - -/* - * Mapping of threads to cores - */ - -#ifdef CONFIG_SMP -extern int threads_per_core; -extern int threads_shift; -extern cpumask_t threads_core_mask; -#else -#define threads_per_core 1 -#define threads_shift 0 -#define threads_core_mask (CPU_MASK_CPU0) -#endif - -/* cpu_thread_mask_to_cores - Return a cpumask of one per cores - * hit by the argument - * - * @threads: a cpumask of threads - * - * This function returns a cpumask which will have one "cpu" (or thread) - * bit set for each core that has at least one thread set in the argument. - * - * This can typically be used for things like IPI for tlb invalidations - * since those need to be done only once per core/TLB - */ -static inline cpumask_t cpu_thread_mask_to_cores(cpumask_t threads) -{ - cpumask_t tmp, res; - int i; - - res = CPU_MASK_NONE; - for (i = 0; i < NR_CPUS; i += threads_per_core) { - cpus_shift_left(tmp, threads_core_mask, i); - if (cpus_intersects(threads, tmp)) - cpu_set(i, res); - } - return res; -} - -static inline int cpu_nr_cores(void) -{ - return NR_CPUS >> threads_shift; -} - -static inline cpumask_t cpu_online_cores_map(void) -{ - return cpu_thread_mask_to_cores(cpu_online_map); -} - -static inline int cpu_thread_to_core(int cpu) -{ - return cpu >> threads_shift; -} - -static inline int cpu_thread_in_core(int cpu) -{ - return cpu & (threads_per_core - 1); -} - -static inline int cpu_first_thread_in_core(int cpu) -{ - return cpu & ~(threads_per_core - 1); -} - -#endif /* _ASM_POWERPC_CPUTHREADS_H */ - |