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	#define cpu_getstack(td) ((td)->td_frame->fixreg[1])			#define cpu_getstack(td) ((td)->td_frame->fixreg[1])
	#define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */			#define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */
	#define cpu_lock_delay() DELAY(1)			#define cpu_lock_delay() DELAY(1)

	extern char btext[];			extern char btext[];
	extern char etext[];			extern char etext[];

				struct thread;

	#ifdef __powerpc64__			#ifdef __powerpc64__
	extern void enter_idle_powerx(void);			extern void enter_idle_powerx(void);
	extern uint64_t can_wakeup;			extern uint64_t can_wakeup;
	extern register_t lpcr;			extern register_t lpcr;
	extern int enable_specexec;			extern int enable_specexec;
	#endif			#endif

	void cpu_halt(void);			void cpu_halt(void);
	void cpu_reset(void);			void cpu_reset(void);
	void cpu_sleep(void);			void cpu_sleep(void);
	void flush_disable_caches(void);			void flush_disable_caches(void);
	void fork_trampoline(void);			void fork_trampoline(void);
	void swi_vm(void *);			void swi_vm(void *);
				int cpu_machine_check(struct thread , struct trapframe , int *);

	#endif /* _MACHINE_CPU_H_ */			#endif /* _MACHINE_CPU_H_ */