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https://github.com/edk2-porting/linux-next.git
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1b2bc75c1b
Each platform has to add support for CPU hotplugging itself by providing suitable definitions for the cpu_disable and cpu_die of the smp_ops methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the necessary changes. This patch contains the changes to the dummy smp_ops definition for uni-processor systems. Parts of the code contributed by Cavium Inc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
33 lines
627 B
C
33 lines
627 B
C
#include <linux/cpu.h>
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#include <linux/cpumask.h>
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#include <linux/init.h>
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#include <linux/node.h>
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#include <linux/nodemask.h>
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#include <linux/percpu.h>
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static DEFINE_PER_CPU(struct cpu, cpu_devices);
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static int __init topology_init(void)
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{
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int i, ret;
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#ifdef CONFIG_NUMA
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for_each_online_node(i)
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register_one_node(i);
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#endif /* CONFIG_NUMA */
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for_each_present_cpu(i) {
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struct cpu *c = &per_cpu(cpu_devices, i);
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c->hotpluggable = 1;
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ret = register_cpu(c, i);
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if (ret)
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printk(KERN_WARNING "topology_init: register_cpu %d "
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"failed (%d)\n", i, ret);
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}
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return 0;
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}
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subsys_initcall(topology_init);
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