diff options
Diffstat (limited to 'arch/s390/include/asm/topology.h')
| -rw-r--r-- | arch/s390/include/asm/topology.h | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 005d77d8ae2..0837de80c35 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -4,6 +4,10 @@ #include <linux/cpumask.h> #include <asm/sysinfo.h> +struct cpu; + +#ifdef CONFIG_SCHED_BOOK + extern unsigned char cpu_core_id[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; @@ -16,8 +20,6 @@ static inline const struct cpumask *cpu_coregroup_mask(int cpu) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) #define mc_capable() (1) -#ifdef CONFIG_SCHED_BOOK - extern unsigned char cpu_book_id[NR_CPUS]; extern cpumask_t cpu_book_map[NR_CPUS]; @@ -29,19 +31,45 @@ static inline const struct cpumask *cpu_book_mask(int cpu) #define topology_book_id(cpu) (cpu_book_id[cpu]) #define topology_book_cpumask(cpu) (&cpu_book_map[cpu]) -#endif /* CONFIG_SCHED_BOOK */ - +int topology_cpu_init(struct cpu *); int topology_set_cpu_management(int fc); void topology_schedule_update(void); void store_topology(struct sysinfo_15_1_x *info); +void topology_expect_change(void); + +#else /* CONFIG_SCHED_BOOK */ + +static inline void topology_schedule_update(void) { } +static inline int topology_cpu_init(struct cpu *cpu) { return 0; } +static inline void topology_expect_change(void) { } -#define POLARIZATION_UNKNWN (-1) +#endif /* CONFIG_SCHED_BOOK */ + +#define POLARIZATION_UNKNOWN (-1) #define POLARIZATION_HRZ (0) #define POLARIZATION_VL (1) #define POLARIZATION_VM (2) #define POLARIZATION_VH (3) -#ifdef CONFIG_SMP +extern int cpu_polarization[]; + +static inline void cpu_set_polarization(int cpu, int val) +{ +#ifdef CONFIG_SCHED_BOOK + cpu_polarization[cpu] = val; +#endif +} + +static inline int cpu_read_polarization(int cpu) +{ +#ifdef CONFIG_SCHED_BOOK + return cpu_polarization[cpu]; +#else + return POLARIZATION_HRZ; +#endif +} + +#ifdef CONFIG_SCHED_BOOK void s390_init_cpu_topology(void); #else static inline void s390_init_cpu_topology(void) |