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/* SPDX-License-Identifier: GPL-2.0 */
#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;
if (node == -1)
return cpu_all_mask;
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 */
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