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

#ifndef _ASM_POWERPC_TOPOLOGY_H
#define _ASM_POWERPC_TOPOLOGY_H
#ifdef __KERNEL__


struct sys_device;
struct device_node;

#ifdef CONFIG_NUMA

#include <asm/mmzone.h>

static inline int cpu_to_node(int cpu)
{
	return numa_cpu_lookup_table[cpu];
}

#define parent_node(node)	(node)

static inline cpumask_t node_to_cpumask(int node)
{
	return numa_cpumask_lookup_table[node];
}

#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])

int of_node_to_nid(struct device_node *device);

struct pci_bus;
#ifdef CONFIG_PCI
extern int pcibus_to_node(struct pci_bus *bus);
#else
static inline int pcibus_to_node(struct pci_bus *bus)
{
	return -1;
}
#endif

#define pcibus_to_cpumask(bus)	(pcibus_to_node(bus) == -1 ? \
					CPU_MASK_ALL : \
					node_to_cpumask(pcibus_to_node(bus)) \
				)

#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ?		\
				 cpu_all_mask :				\
				 cpumask_of_node(pcibus_to_node(bus)))

/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) {		\
	.parent			= NULL,			\
	.child			= NULL,			\
	.groups			= NULL,			\
	.min_interval		= 8,			\
	.max_interval		= 32,			\
	.busy_factor		= 32,			\
	.imbalance_pct		= 125,			\
	.cache_nice_tries	= 1,			\
	.busy_idx		= 3,			\
	.idle_idx		= 1,			\
	.newidle_idx		= 2,			\
	.wake_idx		= 0,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_EXEC	\
				| SD_BALANCE_FORK	\
				| SD_BALANCE_NEWIDLE	\
				| SD_BALANCE_WAKE	\
				| SD_SERIALIZE,		\
	.last_balance		= jiffies,		\
	.balance_interval	= 1,			\
	.nr_balance_failed	= 0,			\
}

extern void __init dump_numa_cpu_topology(void);

extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);

#else

static inline int of_node_to_nid(struct device_node *device)
{
	return 0;
}

static inline void dump_numa_cpu_topology(void) {}

static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
{
	return 0;
}

static inline void sysfs_remove_device_from_node(struct sys_device *dev,
						int nid)
{
}

#endif /* CONFIG_NUMA */

#include <asm-generic/topology.h>

#ifdef CONFIG_SMP
#include <asm/cputable.h>
#define smt_capable()		(cpu_has_feature(CPU_FTR_SMT))

#ifdef CONFIG_PPC64
#include <asm/smp.h>

#define topology_thread_siblings(cpu)	(per_cpu(cpu_sibling_map, cpu))
#define topology_core_siblings(cpu)	(per_cpu(cpu_core_map, cpu))
#define topology_thread_cpumask(cpu)	(&per_cpu(cpu_sibling_map, cpu))
#define topology_core_cpumask(cpu)	(&per_cpu(cpu_core_map, cpu))
#define topology_core_id(cpu)		(cpu_to_core_id(cpu))
#endif
#endif

#endif /* __KERNEL__ */
#endif	/* _ASM_POWERPC_TOPOLOGY_H */
Commit	Line	Data
dd56fdf2	1	#ifndef _ASM_POWERPC_TOPOLOGY_H
dd56fdf2	2	#define _ASM_POWERPC_TOPOLOGY_H
88ced031	3	#ifdef __KERNEL__
1da177e4	4
1da177e4	5
953039c8 JK	6	struct sys_device;
	7	struct device_node;
	8
1da177e4 LT	9	#ifdef CONFIG_NUMA
1da177e4 LT	10
dd56fdf2	11	#include <asm/mmzone.h>
dd56fdf2	12
1da177e4 LT	13	static inline int cpu_to_node(int cpu)
1da177e4 LT	14	{
45fb6cea	15	return numa_cpu_lookup_table[cpu];
1da177e4 LT	16	}
	17
	18	#define parent_node(node) (node)
	19
	20	static inline cpumask_t node_to_cpumask(int node)
	21	{
	22	return numa_cpumask_lookup_table[node];
	23	}
	24
86c6f274 RR	25	#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])
86c6f274 RR	26
953039c8 JK	27	int of_node_to_nid(struct device_node *device);
953039c8 JK	28
357518fa	29	struct pci_bus;
11faa658	30	#ifdef CONFIG_PCI
357518fa	31	extern int pcibus_to_node(struct pci_bus *bus);
11faa658 AB	32	#else
	33	static inline int pcibus_to_node(struct pci_bus *bus)
	34	{
	35	return -1;
	36	}
	37	#endif
357518fa AB	38
	39	#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
	40	CPU_MASK_ALL : \
	41	node_to_cpumask(pcibus_to_node(bus)) \
	42	)
1da177e4	43
86c6f274 RR	44	#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
	45	cpu_all_mask : \
	46	cpumask_of_node(pcibus_to_node(bus)))
	47
1da177e4 LT	48	/* sched_domains SD_NODE_INIT for PPC64 machines */
1da177e4 LT	49	#define SD_NODE_INIT (struct sched_domain) { \
1da177e4	50	.parent = NULL, \
1a848870	51	.child = NULL, \
1da177e4 LT	52	.groups = NULL, \
	53	.min_interval = 8, \
	54	.max_interval = 32, \
	55	.busy_factor = 32, \
	56	.imbalance_pct = 125, \
1da177e4	57	.cache_nice_tries = 1, \
5cfccd7f	58	.busy_idx = 3, \
d2a33170	59	.idle_idx = 1, \
5cfccd7f	60	.newidle_idx = 2, \
78e7ed53	61	.wake_idx = 0, \
1da177e4 LT	62	.flags = SD_LOAD_BALANCE \
1da177e4 LT	63	\| SD_BALANCE_EXEC \
78e7ed53	64	\| SD_BALANCE_FORK \
1da177e4	65	\| SD_BALANCE_NEWIDLE \
c88d5910 PZ	66	\| SD_BALANCE_WAKE \
c88d5910 PZ	67	\| SD_SERIALIZE, \
1da177e4 LT	68	.last_balance = jiffies, \
	69	.balance_interval = 1, \
	70	.nr_balance_failed = 0, \
	71	}
	72
4b703a23 AB	73	extern void __init dump_numa_cpu_topology(void);
4b703a23 AB	74
953039c8 JK	75	extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
	76	extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
	77
561fb765	78	#else
1da177e4	79
953039c8 JK	80	static inline int of_node_to_nid(struct device_node *device)
	81	{
	82	return 0;
	83	}
	84
4b703a23 AB	85	static inline void dump_numa_cpu_topology(void) {}
4b703a23 AB	86
953039c8 JK	87	static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
	88	{
	89	return 0;
	90	}
	91
	92	static inline void sysfs_remove_device_from_node(struct sys_device *dev,
	93	int nid)
	94	{
	95	}
	96
aa6b5446	97	#endif /* CONFIG_NUMA */
953039c8	98
1da177e4 LT	99	#include <asm-generic/topology.h>
1da177e4 LT	100
5c45bf27 SS	101	#ifdef CONFIG_SMP
5c45bf27 SS	102	#include <asm/cputable.h>
056f4faa SR	103	#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
	104
	105	#ifdef CONFIG_PPC64
	106	#include <asm/smp.h>
	107
d5a7430d	108	#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
440a0857	109	#define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu))
9150641d RR	110	#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
9150641d RR	111	#define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu))
e9efed3b	112	#define topology_core_id(cpu) (cpu_to_core_id(cpu))
056f4faa	113	#endif
5c45bf27 SS	114	#endif
5c45bf27 SS	115
88ced031	116	#endif /* __KERNEL__ */
dd56fdf2	117	#endif /* _ASM_POWERPC_TOPOLOGY_H */