/* * 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; }; struct memory_block; extern struct node node_devices[]; extern int register_node(struct node *, int, struct node *); extern void unregister_node(struct node *node); #ifdef CONFIG_NUMA extern int register_one_node(int nid); extern void unregister_one_node(int nid); extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); extern int register_mem_sect_under_node(struct memory_block *mem_blk, int nid); extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk); #else static inline int register_one_node(int nid) { return 0; } static inline int unregister_one_node(int nid) { return 0; } 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; } static inline int register_mem_sect_under_node(struct memory_block *mem_blk, int nid) { return 0; } static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk) { return 0; } #endif #define to_node(sys_device) container_of(sys_device, struct node, sysdev) #endif /* _LINUX_NODE_H_ */