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- #ifndef _ASM_X86_CPU_H
- #define _ASM_X86_CPU_H
- #include <linux/device.h>
- #include <linux/cpu.h>
- #include <linux/topology.h>
- #include <linux/nodemask.h>
- #include <linux/percpu.h>
- #ifdef CONFIG_SMP
- extern void prefill_possible_map(void);
- #else /* CONFIG_SMP */
- static inline void prefill_possible_map(void) {}
- #define cpu_physical_id(cpu) boot_cpu_physical_apicid
- #define cpu_acpi_id(cpu) 0
- #define safe_smp_processor_id() 0
- #endif /* CONFIG_SMP */
- struct x86_cpu {
- struct cpu cpu;
- };
- #ifdef CONFIG_HOTPLUG_CPU
- extern int arch_register_cpu(int num);
- extern void arch_unregister_cpu(int);
- extern void start_cpu0(void);
- #ifdef CONFIG_DEBUG_HOTPLUG_CPU0
- extern int _debug_hotplug_cpu(int cpu, int action);
- #endif
- #endif
- int mwait_usable(const struct cpuinfo_x86 *);
- unsigned int x86_family(unsigned int sig);
- unsigned int x86_model(unsigned int sig);
- unsigned int x86_stepping(unsigned int sig);
- #endif /* _ASM_X86_CPU_H */
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