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File: [Development] / linux-2.6-xfs / include / asm-alpha / Attic / topology.h (download)

Revision 1.4, Mon Aug 16 03:52:41 2004 UTC (13 years, 2 months ago) by nathans
Branch: MAIN
Changes since 1.3: +6 -4 lines 

Merge up to 2.6.8.1

#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;
}

static inline cpumask_t node_to_cpumask(int node)
{
	cpumask_t node_cpu_mask = CPU_MASK_NONE;
	int cpu;

	for(cpu = 0; cpu < NR_CPUS; cpu++) {
		if (cpu_online(cpu) && (cpu_to_node(cpu) == node))
			cpu_set(cpu, node_cpu_mask);
	}

#ifdef DEBUG_NUMA
	printk("node %d: cpu_mask: %016lx\n", node, node_cpu_mask);
#endif

	return node_cpu_mask;
}

/* Cross-node load balancing interval. */
# define NODE_BALANCE_RATE 10

#define pcibus_to_cpumask(bus)	(cpu_online_map)

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

#endif /* _ASM_ALPHA_TOPOLOGY_H */