projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * include/linux/node.h - generic node definition | |
| 3 | * | |
| 4 | * This is mainly for topological representation. We define the | |
| 5 | * basic 'struct node' here, which can be embedded in per-arch | |
| 6 | * definitions of processors. | |
| 7 | * | |
| 8 | * Basic handling of the devices is done in drivers/base/node.c | |
| 9 | * and system devices are handled in drivers/base/sys.c. | |
| 10 | * | |
| 11 | * Nodes are exported via driverfs in the class/node/devices/ | |
| 12 | * directory. | |
| 13 | * | |
| 14 | * Per-node interfaces can be implemented using a struct device_interface. | |
| 15 | * See the following for how to do this: | |
| 16 | * - drivers/base/intf.c | |
| 17 | * - Documentation/driver-model/interface.txt | |
| 18 | */ | |
| 19 | #ifndef _LINUX_NODE_H_ | |
| 20 | #define _LINUX_NODE_H_ | |
| 21 | ||
| 22 | #include <linux/sysdev.h> | |
| 23 | #include <linux/cpumask.h> | |
| 24 | ||
| 25 | struct node { | |
| 26 | struct sys_device sysdev; | |
| 27 | }; | |
| 28 | ||
| c04fc586 | 29 | struct memory_block; |
| 0fc44159 | 30 | extern struct node node_devices[]; |
| 9a305230 | 31 | typedef void (*node_registration_func_t)(struct node *); |
| 0fc44159 | 32 | |
| 1da177e4 | 33 | extern int register_node(struct node *, int, struct node *); |
| 4b45099b | 34 | extern void unregister_node(struct node *node); |
| 36920e06 | 35 | #ifdef CONFIG_NUMA |
| 0fc44159 YG |
36 | extern int register_one_node(int nid); |
| 37 | extern void unregister_one_node(int nid); | |
| 76b67ed9 KH |
38 | extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); |
| 39 | extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); | |
| c04fc586 GH |
40 | extern int register_mem_sect_under_node(struct memory_block *mem_blk, |
| 41 | int nid); | |
| 42 | extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk); | |
| 9a305230 LS |
43 | |
| 44 | #ifdef CONFIG_HUGETLBFS | |
| 45 | extern void register_hugetlbfs_with_node(node_registration_func_t doregister, | |
| 46 | node_registration_func_t unregister); | |
| 47 | #endif | |
| 76b67ed9 | 48 | #else |
| 36920e06 KH |
49 | static inline int register_one_node(int nid) |
| 50 | { | |
| 51 | return 0; | |
| 52 | } | |
| 53 | static inline int unregister_one_node(int nid) | |
| 54 | { | |
| 55 | return 0; | |
| 56 | } | |
| 76b67ed9 KH |
57 | static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid) |
| 58 | { | |
| 59 | return 0; | |
| 60 | } | |
| 61 | static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) | |
| 62 | { | |
| 63 | return 0; | |
| 64 | } | |
| c04fc586 GH |
65 | static inline int register_mem_sect_under_node(struct memory_block *mem_blk, |
| 66 | int nid) | |
| 67 | { | |
| 68 | return 0; | |
| 69 | } | |
| 70 | static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk) | |
| 71 | { | |
| 72 | return 0; | |
| 73 | } | |
| 9a305230 LS |
74 | |
| 75 | static inline void register_hugetlbfs_with_node(node_registration_func_t reg, | |
| 76 | node_registration_func_t unreg) | |
| 77 | { | |
| 78 | } | |
| 76b67ed9 | 79 | #endif |
| 1da177e4 LT |
80 | |
| 81 | #define to_node(sys_device) container_of(sys_device, struct node, sysdev) | |
| 82 | ||
| 83 | #endif /* _LINUX_NODE_H_ */ |