[net-next-2.6.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)

#define cpumask_of_node(node) ((node) == -1 ?				\
			       cpu_all_mask :				\
			       &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 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		= 0,			\
	.wake_idx		= 0,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_EXEC	\
				| SD_BALANCE_FORK	\
				| SD_BALANCE_NEWIDLE	\
				| 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_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
c81b812a AB	20	#define cpumask_of_node(node) ((node) == -1 ? \
	21	cpu_all_mask : \
	22	&numa_cpumask_lookup_table[node])
86c6f274	23
953039c8 JK	24	int of_node_to_nid(struct device_node *device);
953039c8 JK	25
357518fa	26	struct pci_bus;
11faa658	27	#ifdef CONFIG_PCI
357518fa	28	extern int pcibus_to_node(struct pci_bus *bus);
11faa658 AB	29	#else
	30	static inline int pcibus_to_node(struct pci_bus *bus)
	31	{
	32	return -1;
	33	}
	34	#endif
357518fa	35
86c6f274 RR	36	#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
	37	cpu_all_mask : \
	38	cpumask_of_node(pcibus_to_node(bus)))
	39
1da177e4 LT	40	/* sched_domains SD_NODE_INIT for PPC64 machines */
1da177e4 LT	41	#define SD_NODE_INIT (struct sched_domain) { \
1da177e4	42	.parent = NULL, \
1a848870	43	.child = NULL, \
1da177e4 LT	44	.groups = NULL, \
	45	.min_interval = 8, \
	46	.max_interval = 32, \
	47	.busy_factor = 32, \
	48	.imbalance_pct = 125, \
1da177e4	49	.cache_nice_tries = 1, \
5cfccd7f	50	.busy_idx = 3, \
d2a33170	51	.idle_idx = 1, \
0ec9fab3	52	.newidle_idx = 0, \
78e7ed53	53	.wake_idx = 0, \
1da177e4 LT	54	.flags = SD_LOAD_BALANCE \
1da177e4 LT	55	\| SD_BALANCE_EXEC \
78e7ed53	56	\| SD_BALANCE_FORK \
1da177e4	57	\| SD_BALANCE_NEWIDLE \
c88d5910	58	\| SD_SERIALIZE, \
1da177e4 LT	59	.last_balance = jiffies, \
	60	.balance_interval = 1, \
	61	.nr_balance_failed = 0, \
	62	}
	63
4b703a23 AB	64	extern void __init dump_numa_cpu_topology(void);
4b703a23 AB	65
953039c8 JK	66	extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
	67	extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
	68
561fb765	69	#else
1da177e4	70
953039c8 JK	71	static inline int of_node_to_nid(struct device_node *device)
	72	{
	73	return 0;
	74	}
	75
4b703a23 AB	76	static inline void dump_numa_cpu_topology(void) {}
4b703a23 AB	77
953039c8 JK	78	static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
	79	{
	80	return 0;
	81	}
	82
	83	static inline void sysfs_remove_device_from_node(struct sys_device *dev,
	84	int nid)
	85	{
	86	}
	87
aa6b5446	88	#endif /* CONFIG_NUMA */
953039c8	89
1da177e4 LT	90	#include <asm-generic/topology.h>
1da177e4 LT	91
5c45bf27 SS	92	#ifdef CONFIG_SMP
5c45bf27 SS	93	#include <asm/cputable.h>
056f4faa SR	94	#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
	95
	96	#ifdef CONFIG_PPC64
	97	#include <asm/smp.h>
	98
9150641d RR	99	#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
9150641d RR	100	#define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu))
e9efed3b	101	#define topology_core_id(cpu) (cpu_to_core_id(cpu))
056f4faa	102	#endif
5c45bf27 SS	103	#endif
5c45bf27 SS	104
88ced031	105	#endif /* __KERNEL__ */
dd56fdf2	106	#endif /* _ASM_POWERPC_TOPOLOGY_H */