1 files changed, 56 insertions, 0 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
new file mode 100644
index 000000000..b1453a2ae
--- /dev/null
+++ b/arch/s390/include/asm/topology.h
@@ -0,0 +1,56 @@
+#ifndef _ASM_S390_TOPOLOGY_H
+#define _ASM_S390_TOPOLOGY_H
+
+#include <linux/cpumask.h>
+
+struct sysinfo_15_1_x;
+struct cpu;
+
+#ifdef CONFIG_SCHED_BOOK
+
+struct cpu_topology_s390 {
+	unsigned short thread_id;
+	unsigned short core_id;
+	unsigned short socket_id;
+	unsigned short book_id;
+	cpumask_t thread_mask;
+	cpumask_t core_mask;
+	cpumask_t book_mask;
+};
+
+DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
+
+#define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
+#define topology_thread_id(cpu)		  (per_cpu(cpu_topology, cpu).thread_id)
+#define topology_thread_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).thread_mask)
+#define topology_core_id(cpu)		  (per_cpu(cpu_topology, cpu).core_id)
+#define topology_core_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).core_mask)
+#define topology_book_id(cpu)		  (per_cpu(cpu_topology, cpu).book_id)
+#define topology_book_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).book_mask)
+
+#define mc_capable() 1
+
+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);
+const struct cpumask *cpu_coregroup_mask(int cpu);
+
+#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) { }
+
+#endif /* CONFIG_SCHED_BOOK */
+
+#define POLARIZATION_UNKNOWN	(-1)
+#define POLARIZATION_HRZ	(0)
+#define POLARIZATION_VL		(1)
+#define POLARIZATION_VM		(2)
+#define POLARIZATION_VH		(3)
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_S390_TOPOLOGY_H */