85 lines
2.2 KiB
C
Executable File
85 lines
2.2 KiB
C
Executable File
/*
|
|
* 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.
|
|
*/
|
|
#ifndef _LINUX_NODE_H_
|
|
#define _LINUX_NODE_H_
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/cpumask.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
struct node {
|
|
struct device dev;
|
|
|
|
#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS)
|
|
struct work_struct node_work;
|
|
#endif
|
|
};
|
|
|
|
struct memory_block;
|
|
extern struct node *node_devices[];
|
|
typedef void (*node_registration_func_t)(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,
|
|
unsigned long phys_index);
|
|
|
|
#ifdef CONFIG_HUGETLBFS
|
|
extern void register_hugetlbfs_with_node(node_registration_func_t doregister,
|
|
node_registration_func_t unregister);
|
|
#endif
|
|
#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,
|
|
unsigned long phys_index)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void register_hugetlbfs_with_node(node_registration_func_t reg,
|
|
node_registration_func_t unreg)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#define to_node(device) container_of(device, struct node, dev)
|
|
|
|
#endif /* _LINUX_NODE_H_ */
|