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

#ifndef _ASM_POWERPC_TOPOLOGY_H
#define _ASM_POWERPC_TOPOLOGY_H
#ifdef __KERNEL__

#include <linux/config.h>

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];
}

static inline int node_to_first_cpu(int node)
{
	cpumask_t tmp;
	tmp = node_to_cpumask(node);
	return first_cpu(tmp);
}

int of_node_to_nid(struct device_node *device);

#ifdef CONFIG_PPC64
#define pcibus_to_node(bus)	(of_node_to_nid(bus->sysdata))
#define pcibus_to_cpumask(bus)	(node_to_cpumask(of_node_to_nid(bus->sysdata)))
#else
#define pcibus_to_node(node)    (-1)
#define pcibus_to_cpumask(bus)	(cpu_online_map)
#endif

/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) {		\
	.span			= CPU_MASK_NONE,	\
	.parent			= NULL,			\
	.groups			= NULL,			\
	.min_interval		= 8,			\
	.max_interval		= 32,			\
	.busy_factor		= 32,			\
	.imbalance_pct		= 125,			\
	.cache_nice_tries	= 1,			\
	.per_cpu_gain		= 100,			\
	.busy_idx		= 3,			\
	.idle_idx		= 1,			\
	.newidle_idx		= 2,			\
	.wake_idx		= 1,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_EXEC	\
				| SD_BALANCE_NEWIDLE	\
				| SD_WAKE_IDLE		\
				| SD_WAKE_BALANCE,	\
	.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)
{
}


#include <asm-generic/topology.h>

#endif /* CONFIG_NUMA */

#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 LT	4
1da177e4 LT	5	#include <linux/config.h>
1da177e4	6
953039c8 JK	7	struct sys_device;
	8	struct device_node;
	9
1da177e4 LT	10	#ifdef CONFIG_NUMA
1da177e4 LT	11
dd56fdf2	12	#include <asm/mmzone.h>
dd56fdf2	13
1da177e4 LT	14	static inline int cpu_to_node(int cpu)
1da177e4 LT	15	{
45fb6cea	16	return numa_cpu_lookup_table[cpu];
1da177e4 LT	17	}
	18
	19	#define parent_node(node) (node)
	20
	21	static inline cpumask_t node_to_cpumask(int node)
	22	{
	23	return numa_cpumask_lookup_table[node];
	24	}
	25
	26	static inline int node_to_first_cpu(int node)
	27	{
	28	cpumask_t tmp;
	29	tmp = node_to_cpumask(node);
	30	return first_cpu(tmp);
	31	}
	32
953039c8 JK	33	int of_node_to_nid(struct device_node *device);
953039c8 JK	34
318facbe CH	35	#ifdef CONFIG_PPC64
	36	#define pcibus_to_node(bus) (of_node_to_nid(bus->sysdata))
	37	#define pcibus_to_cpumask(bus) (node_to_cpumask(of_node_to_nid(bus->sysdata)))
	38	#else
561fb765	39	#define pcibus_to_node(node) (-1)
1da177e4	40	#define pcibus_to_cpumask(bus) (cpu_online_map)
318facbe	41	#endif
1da177e4	42
1da177e4 LT	43	/* sched_domains SD_NODE_INIT for PPC64 machines */
	44	#define SD_NODE_INIT (struct sched_domain) { \
	45	.span = CPU_MASK_NONE, \
	46	.parent = NULL, \
	47	.groups = NULL, \
	48	.min_interval = 8, \
	49	.max_interval = 32, \
	50	.busy_factor = 32, \
	51	.imbalance_pct = 125, \
1da177e4 LT	52	.cache_nice_tries = 1, \
1da177e4 LT	53	.per_cpu_gain = 100, \
5cfccd7f	54	.busy_idx = 3, \
d2a33170	55	.idle_idx = 1, \
5cfccd7f NP	56	.newidle_idx = 2, \
5cfccd7f NP	57	.wake_idx = 1, \
1da177e4 LT	58	.flags = SD_LOAD_BALANCE \
	59	\| SD_BALANCE_EXEC \
	60	\| SD_BALANCE_NEWIDLE \
	61	\| SD_WAKE_IDLE \
	62	\| SD_WAKE_BALANCE, \
	63	.last_balance = jiffies, \
	64	.balance_interval = 1, \
	65	.nr_balance_failed = 0, \
	66	}
	67
4b703a23 AB	68	extern void __init dump_numa_cpu_topology(void);
4b703a23 AB	69
953039c8 JK	70	extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
	71	extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
	72
561fb765	73	#else
1da177e4	74
953039c8 JK	75	static inline int of_node_to_nid(struct device_node *device)
	76	{
	77	return 0;
	78	}
	79
4b703a23 AB	80	static inline void dump_numa_cpu_topology(void) {}
4b703a23 AB	81
953039c8 JK	82	static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
	83	{
	84	return 0;
	85	}
	86
	87	static inline void sysfs_remove_device_from_node(struct sys_device *dev,
	88	int nid)
	89	{
	90	}
	91
	92
1da177e4 LT	93	#include <asm-generic/topology.h>
1da177e4 LT	94
561fb765 AB	95	#endif /* CONFIG_NUMA */
561fb765 AB	96
88ced031	97	#endif /* __KERNEL__ */
dd56fdf2	98	#endif /* _ASM_POWERPC_TOPOLOGY_H */