forked from Minki/linux
2258a5bb10
Impact: New APIs The old node_to_cpumask/node_to_pcibus returned a cpumask_t: these return a pointer to a struct cpumask. Part of removing cpumasks from the stack. I'm not sure the existing code even compiles, but new version is straightforward. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Richard Henderson <rth@twiddle.net>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
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_each_online_cpu(cpu) {
|
|
if (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;
|
|
}
|
|
|
|
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 pcibus_to_cpumask(bus) (cpu_online_map)
|
|
#define cpumask_of_pcibus(bus) (cpu_online_mask)
|
|
|
|
#endif /* !CONFIG_NUMA */
|
|
# include <asm-generic/topology.h>
|
|
|
|
#endif /* _ASM_ALPHA_TOPOLOGY_H */
|