[linux-2.6-block.git] / arch / alpha / include / asm / topology.h

#ifndef _ASM_ALPHA_TOPOLOGY_H
#define _ASM_ALPHA_TOPOLOGY_H

#include <linux/smp.h>
#include <linux/threads.h>
#include <asm/machvec.h>

#ifdef CONFIG_NUMA
static inline int cpu_to_node(int cpu)
{
	int node;
	
	if (!alpha_mv.cpuid_to_nid)
		return 0;

	node = alpha_mv.cpuid_to_nid(cpu);

#ifdef DEBUG_NUMA
	BUG_ON(node < 0);
#endif

	return node;
}

extern struct cpumask node_to_cpumask_map[];
/* FIXME: This is dumb, recalculating every time.  But simple. */
static const struct cpumask *cpumask_of_node(int node)
{
	int cpu;

	cpumask_clear(&node_to_cpumask_map[node]);

	for_each_online_cpu(cpu) {
		if (cpu_to_node(cpu) == node)
			cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
	}

	return &node_to_cpumask_map[node];
}

#define cpumask_of_pcibus(bus)	(cpu_online_mask)

#endif /* !CONFIG_NUMA */
# include <asm-generic/topology.h>

#endif /* _ASM_ALPHA_TOPOLOGY_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_ALPHA_TOPOLOGY_H
	2	#define _ASM_ALPHA_TOPOLOGY_H
	3
	4	#include <linux/smp.h>
	5	#include <linux/threads.h>
	6	#include <asm/machvec.h>
	7
	8	#ifdef CONFIG_NUMA
	9	static inline int cpu_to_node(int cpu)
	10	{
	11	int node;
	12
	13	if (!alpha_mv.cpuid_to_nid)
	14	return 0;
	15
	16	node = alpha_mv.cpuid_to_nid(cpu);
	17
	18	#ifdef DEBUG_NUMA
	19	BUG_ON(node < 0);
	20	#endif
	21
	22	return node;
	23	}
	24
2258a5bb RR	25	extern struct cpumask node_to_cpumask_map[];
	26	/* FIXME: This is dumb, recalculating every time. But simple. */
	27	static const struct cpumask *cpumask_of_node(int node)
	28	{
	29	int cpu;
	30
	31	cpumask_clear(&node_to_cpumask_map[node]);
	32
	33	for_each_online_cpu(cpu) {
	34	if (cpu_to_node(cpu) == node)
	35	cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
	36	}
	37
	38	return &node_to_cpumask_map[node];
	39	}
	40
2258a5bb	41	#define cpumask_of_pcibus(bus) (cpu_online_mask)
1da177e4	42
1da177e4	43	#endif /* !CONFIG_NUMA */
aa6b5446	44	# include <asm-generic/topology.h>
1da177e4 LT	45
1da177e4 LT	46	#endif /* _ASM_ALPHA_TOPOLOGY_H */