blob: 94fc55fc72ce88a18eb73d3f43d5a7895ac6cd9c [file] [log] [blame]
#ifndef _ASM_S390_TOPOLOGY_H
#define _ASM_S390_TOPOLOGY_H
#include <linux/cpumask.h>
#include <asm/numa.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;
unsigned short node_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_sibling_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)
#define SD_BOOK_INIT SD_CPU_INIT
#ifdef CONFIG_NUMA
#define cpu_to_node cpu_to_node
static inline int cpu_to_node(int cpu)
{
return per_cpu(cpu_topology, cpu).node_id;
}
/* Returns a pointer to the cpumask of CPUs on node 'node'. */
#define cpumask_of_node cpumask_of_node
static inline const struct cpumask *cpumask_of_node(int node)
{
return &node_to_cpumask_map[node];
}
/*
* Returns the number of the node containing node 'node'. This
* architecture is flat, so it is a pretty simple function!
*/
#define parent_node(node) (node)
#define pcibus_to_node(bus) __pcibus_to_node(bus)
#define node_distance(a, b) __node_distance(a, b)
#else /* !CONFIG_NUMA */
#define numa_node_id numa_node_id
static inline int numa_node_id(void)
{
return 0;
}
#endif /* CONFIG_NUMA */
#include <asm-generic/topology.h>
#endif /* _ASM_S390_TOPOLOGY_H */