mirror of https://gitee.com/openkylin/linux.git
49 lines
866 B
C
49 lines
866 B
C
#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;
|
|
}
|
|
|
|
#define pcibus_to_cpumask(bus) (cpu_online_map)
|
|
|
|
#else /* CONFIG_NUMA */
|
|
# include <asm-generic/topology.h>
|
|
#endif /* !CONFIG_NUMA */
|
|
|
|
#endif /* _ASM_ALPHA_TOPOLOGY_H */
|