[mirror_ubuntu-zesty-kernel.git] / include / asm-powerpc / 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];
}

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);

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)) \
				)

/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) {		\
	.span			= CPU_MASK_NONE,	\
	.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		= 1,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_EXEC	\
				| SD_BALANCE_NEWIDLE	\
				| SD_WAKE_IDLE		\
				| SD_SERIALIZE		\
				| 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)
{
}

#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))
#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
	25	static inline int node_to_first_cpu(int node)
	26	{
	27	cpumask_t tmp;
	28	tmp = node_to_cpumask(node);
	29	return first_cpu(tmp);
	30	}
	31
953039c8 JK	32	int of_node_to_nid(struct device_node *device);
953039c8 JK	33
357518fa	34	struct pci_bus;
11faa658	35	#ifdef CONFIG_PCI
357518fa	36	extern int pcibus_to_node(struct pci_bus *bus);
11faa658 AB	37	#else
	38	static inline int pcibus_to_node(struct pci_bus *bus)
	39	{
	40	return -1;
	41	}
	42	#endif
357518fa AB	43
	44	#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
	45	CPU_MASK_ALL : \
	46	node_to_cpumask(pcibus_to_node(bus)) \
	47	)
1da177e4	48
1da177e4 LT	49	/* sched_domains SD_NODE_INIT for PPC64 machines */
	50	#define SD_NODE_INIT (struct sched_domain) { \
	51	.span = CPU_MASK_NONE, \
	52	.parent = NULL, \
1a848870	53	.child = NULL, \
1da177e4 LT	54	.groups = NULL, \
	55	.min_interval = 8, \
	56	.max_interval = 32, \
	57	.busy_factor = 32, \
	58	.imbalance_pct = 125, \
1da177e4	59	.cache_nice_tries = 1, \
5cfccd7f	60	.busy_idx = 3, \
d2a33170	61	.idle_idx = 1, \
5cfccd7f NP	62	.newidle_idx = 2, \
5cfccd7f NP	63	.wake_idx = 1, \
1da177e4 LT	64	.flags = SD_LOAD_BALANCE \
	65	\| SD_BALANCE_EXEC \
	66	\| SD_BALANCE_NEWIDLE \
	67	\| SD_WAKE_IDLE \
08c183f3	68	\| SD_SERIALIZE \
1da177e4 LT	69	\| SD_WAKE_BALANCE, \
	70	.last_balance = jiffies, \
	71	.balance_interval = 1, \
	72	.nr_balance_failed = 0, \
	73	}
	74
4b703a23 AB	75	extern void __init dump_numa_cpu_topology(void);
4b703a23 AB	76
953039c8 JK	77	extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
	78	extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
	79
561fb765	80	#else
1da177e4	81
953039c8 JK	82	static inline int of_node_to_nid(struct device_node *device)
	83	{
	84	return 0;
	85	}
	86
4b703a23 AB	87	static inline void dump_numa_cpu_topology(void) {}
4b703a23 AB	88
953039c8 JK	89	static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
	90	{
	91	return 0;
	92	}
	93
	94	static inline void sysfs_remove_device_from_node(struct sys_device *dev,
	95	int nid)
	96	{
	97	}
	98
aa6b5446	99	#endif /* CONFIG_NUMA */
953039c8	100
1da177e4 LT	101	#include <asm-generic/topology.h>
1da177e4 LT	102
5c45bf27 SS	103	#ifdef CONFIG_SMP
5c45bf27 SS	104	#include <asm/cputable.h>
056f4faa SR	105	#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
	106
	107	#ifdef CONFIG_PPC64
	108	#include <asm/smp.h>
	109
d5a7430d	110	#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
440a0857	111	#define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu))
056f4faa	112	#endif
5c45bf27 SS	113	#endif
5c45bf27 SS	114
88ced031	115	#endif /* __KERNEL__ */
dd56fdf2	116	#endif /* _ASM_POWERPC_TOPOLOGY_H */