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/*
* include/linux/node.h - generic node definition
*
* This is mainly for topological representation. We define the
* basic 'struct node' here, which can be embedded in per-arch
* definitions of processors.
*
* Basic handling of the devices is done in drivers/base/node.c
* and system devices are handled in drivers/base/sys.c.
*
* Nodes are exported via driverfs in the class/node/devices/
* directory.
*
* Per-node 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_NODE_H_
#define _LINUX_NODE_H_
#include <linux/sysdev.h>
#include <linux/cpumask.h>
struct node {
struct sys_device sysdev;
};
extern struct node node_devices[];
extern int register_node(struct node *, int, struct node *);
extern void unregister_node(struct node *node);
extern int register_one_node(int nid);
extern void unregister_one_node(int nid);
#ifdef CONFIG_NUMA
extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
#else
static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid)
{
return 0;
}
static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
{
return 0;
}
#endif
#define to_node(sys_device) container_of(sys_device, struct node, sysdev)
#endif /* _LINUX_NODE_H_ */
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