diff options
| -rw-r--r-- | arch/s390/include/asm/topology.h | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/topology.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 6e7211abd950..dc8a67297d0f 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -7,8 +7,10 @@ const struct cpumask *cpu_coregroup_mask(unsigned int cpu); +extern unsigned char cpu_core_id[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; +#define topology_core_id(cpu) (cpu_core_id[cpu]) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) int topology_set_cpu_management(int fc); diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 247b4c2d1e51..bcef00766a64 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -37,7 +37,8 @@ struct tl_cpu { }; struct tl_container { - unsigned char reserved[8]; + unsigned char reserved[7]; + unsigned char id; }; union tl_entry { @@ -58,6 +59,7 @@ struct tl_info { struct core_info { struct core_info *next; + unsigned char id; cpumask_t mask; }; @@ -73,6 +75,7 @@ static DECLARE_WORK(topology_work, topology_work_fn); static DEFINE_SPINLOCK(topology_lock); cpumask_t cpu_core_map[NR_CPUS]; +unsigned char cpu_core_id[NR_CPUS]; static cpumask_t cpu_coregroup_map(unsigned int cpu) { @@ -116,6 +119,7 @@ static void add_cpus_to_core(struct tl_cpu *tl_cpu, struct core_info *core) for_each_present_cpu(lcpu) { if (cpu_logical_map(lcpu) == rcpu) { cpu_set(lcpu, core->mask); + cpu_core_id[lcpu] = core->id; smp_cpu_polarization[lcpu] = tl_cpu->pp; } } @@ -158,6 +162,7 @@ static void tl_to_cores(struct tl_info *info) break; case 1: core = core->next; + core->id = tle->container.id; break; case 0: add_cpus_to_core(&tle->cpu, core); |