linux/include/asm-sparc64/topology.h

#ifndef _ASM_SPARC64_TOPOLOGY_H
#define _ASM_SPARC64_TOPOLOGY_H

#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];
}

/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
#define node_to_cpumask_ptr(v, node)		\
		cpumask_t *v = &(numa_cpumask_lookup_table[node])

#define node_to_cpumask_ptr_next(v, node)	\
			   v = &(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);
}

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

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

#define SD_NODE_INIT (struct sched_domain) {		\
	.min_interval		= 8,			\
	.max_interval		= 32,			\
	.busy_factor		= 32,			\
	.imbalance_pct		= 125,			\
	.cache_nice_tries	= 2,			\
	.busy_idx		= 3,			\
	.idle_idx		= 2,			\
	.newidle_idx		= 0, 			\
	.wake_idx		= 1,			\
	.forkexec_idx		= 1,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_FORK	\
				| SD_BALANCE_EXEC	\
				| SD_SERIALIZE		\
				| SD_WAKE_BALANCE,	\
	.last_balance		= jiffies,		\
	.balance_interval	= 1,			\
}

#else /* CONFIG_NUMA */

#include <asm-generic/topology.h>

#endif /* !(CONFIG_NUMA) */

#ifdef CONFIG_SMP
#define topology_physical_package_id(cpu)	(cpu_data(cpu).proc_id)
#define topology_core_id(cpu)			(cpu_data(cpu).core_id)
#define topology_core_siblings(cpu)		(cpu_core_map[cpu])
#define topology_thread_siblings(cpu)		(per_cpu(cpu_sibling_map, cpu))
#define mc_capable()				(sparc64_multi_core)
#define smt_capable()				(sparc64_multi_core)
#endif /* CONFIG_SMP */

#define cpu_coregroup_map(cpu)			(cpu_core_map[cpu])

#endif /* _ASM_SPARC64_TOPOLOGY_H */