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#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, \
.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_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)
{
}
#include <asm-generic/topology.h>
#endif /* CONFIG_NUMA */
#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) (cpu_sibling_map[cpu])
#endif
#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_TOPOLOGY_H */
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