[deliverable/linux.git] / arch / s390 / include / asm / topology.h

#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_TOPOLOGY

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_TOPOLOGY */

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_TOPOLOGY */

#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 */
Commit	Line	Data
	1	#ifndef _ASM_S390_TOPOLOGY_H
	2	#define _ASM_S390_TOPOLOGY_H
	3
	4	#include <linux/cpumask.h>
	5	#include <asm/numa.h>
	6
	7	struct sysinfo_15_1_x;
	8	struct cpu;
	9
	10	#ifdef CONFIG_SCHED_TOPOLOGY
	11
	12	struct cpu_topology_s390 {
	13	unsigned short thread_id;
	14	unsigned short core_id;
	15	unsigned short socket_id;
	16	unsigned short book_id;
	17	unsigned short node_id;
	18	cpumask_t thread_mask;
	19	cpumask_t core_mask;
	20	cpumask_t book_mask;
	21	};
	22
	23	DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
	24
	25	#define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
	26	#define topology_thread_id(cpu) (per_cpu(cpu_topology, cpu).thread_id)
	27	#define topology_sibling_cpumask(cpu) \
	28	(&per_cpu(cpu_topology, cpu).thread_mask)
	29	#define topology_core_id(cpu) (per_cpu(cpu_topology, cpu).core_id)
	30	#define topology_core_cpumask(cpu) (&per_cpu(cpu_topology, cpu).core_mask)
	31	#define topology_book_id(cpu) (per_cpu(cpu_topology, cpu).book_id)
	32	#define topology_book_cpumask(cpu) (&per_cpu(cpu_topology, cpu).book_mask)
	33
	34	#define mc_capable() 1
	35
	36	int topology_cpu_init(struct cpu *);
	37	int topology_set_cpu_management(int fc);
	38	void topology_schedule_update(void);
	39	void store_topology(struct sysinfo_15_1_x *info);
	40	void topology_expect_change(void);
	41	const struct cpumask *cpu_coregroup_mask(int cpu);
	42
	43	#else /* CONFIG_SCHED_TOPOLOGY */
	44
	45	static inline void topology_schedule_update(void) { }
	46	static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
	47	static inline void topology_expect_change(void) { }
	48
	49	#endif /* CONFIG_SCHED_TOPOLOGY */
	50
	51	#define POLARIZATION_UNKNOWN (-1)
	52	#define POLARIZATION_HRZ (0)
	53	#define POLARIZATION_VL (1)
	54	#define POLARIZATION_VM (2)
	55	#define POLARIZATION_VH (3)
	56
	57	#define SD_BOOK_INIT SD_CPU_INIT
	58
	59	#ifdef CONFIG_NUMA
	60
	61	#define cpu_to_node cpu_to_node
	62	static inline int cpu_to_node(int cpu)
	63	{
	64	return per_cpu(cpu_topology, cpu).node_id;
	65	}
	66
	67	/* Returns a pointer to the cpumask of CPUs on node 'node'. */
	68	#define cpumask_of_node cpumask_of_node
	69	static inline const struct cpumask *cpumask_of_node(int node)
	70	{
	71	return &node_to_cpumask_map[node];
	72	}
	73
	74	/*
	75	* Returns the number of the node containing node 'node'. This
	76	* architecture is flat, so it is a pretty simple function!
	77	*/
	78	#define parent_node(node) (node)
	79
	80	#define pcibus_to_node(bus) __pcibus_to_node(bus)
	81
	82	#define node_distance(a, b) __node_distance(a, b)
	83
	84	#else /* !CONFIG_NUMA */
	85
	86	#define numa_node_id numa_node_id
	87	static inline int numa_node_id(void)
	88	{
	89	return 0;
	90	}
	91
	92	#endif /* CONFIG_NUMA */
	93
	94	#include <asm-generic/topology.h>
	95
	96	#endif /* _ASM_S390_TOPOLOGY_H */