/* * include/linux/cpu.h - generic cpu definition * * This is mainly for topological representation. We define the  * basic 'struct cpu' here, which can be embedded in per-arch  * definitions of processors. * * Basic handling of the devices is done in drivers/base/cpu.c * and system devices are handled in drivers/base/sys.c.  * * CPUs are exported via driverfs in the class/cpu/devices/ * directory.  * * Per-cpu interfaces can be implemented using a struct device_interface.  * See the following for how to do this:  * - drivers/base/intf.c  * - Documentation/driver-model/interface.txt */#ifndef _LINUX_CPU_H_#define _LINUX_CPU_H_#include <linux/device.h>#include <linux/node.h>#include <asm/semaphore.h>struct cpu {	int node_id;		/* The node which contains the CPU */	struct sys_device sysdev;};extern int register_cpu(struct cpu *, int, struct node *);/* Stop CPUs going up and down. */extern struct semaphore cpucontrol;#endif /* _LINUX_CPU_H_ */