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
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#define _ASM_ALPHA_TOPOLOGY_H
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#include <linux/smp.h>
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#include <linux/threads.h>
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#include <asm/machvec.h>
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#ifdef CONFIG_NUMA
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static inline int cpu_to_node(int cpu)
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{
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int node;
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if (!alpha_mv.cpuid_to_nid)
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return 0;
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node = alpha_mv.cpuid_to_nid(cpu);
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#ifdef DEBUG_NUMA
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BUG_ON(node < 0);
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#endif
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return node;
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}
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static inline cpumask_t node_to_cpumask(int node)
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{
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cpumask_t node_cpu_mask = CPU_MASK_NONE;
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int cpu;
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for_each_online_cpu(cpu) {
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if (cpu_to_node(cpu) == node)
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cpu_set(cpu, node_cpu_mask);
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}
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#ifdef DEBUG_NUMA
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printk("node %d: cpu_mask: %016lx\n", node, node_cpu_mask);
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#endif
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return node_cpu_mask;
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}
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extern struct cpumask node_to_cpumask_map[];
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/* FIXME: This is dumb, recalculating every time. But simple. */
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static const struct cpumask *cpumask_of_node(int node)
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{
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int cpu;
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cpumask_clear(&node_to_cpumask_map[node]);
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for_each_online_cpu(cpu) {
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if (cpu_to_node(cpu) == node)
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cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
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}
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return &node_to_cpumask_map[node];
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}
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#define pcibus_to_cpumask(bus) (cpu_online_map)
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#define cpumask_of_pcibus(bus) (cpu_online_mask)
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#endif /* !CONFIG_NUMA */
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# include <asm-generic/topology.h>
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#endif /* _ASM_ALPHA_TOPOLOGY_H */
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