projects / 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. | |
| 1da177e4 LT |
13 | */ |
| 14 | #ifndef _LINUX_NODE_H_ | |
| 15 | #define _LINUX_NODE_H_ | |
| 16 | ||
| 10fbcf4c | 17 | #include <linux/device.h> |
| 1da177e4 | 18 | #include <linux/cpumask.h> |
| 39da08cb | 19 | #include <linux/workqueue.h> |
| 1da177e4 LT |
20 | |
| 21 | struct node { | |
| 10fbcf4c | 22 | struct device dev; |
| 39da08cb LS |
23 | |
| 24 | #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) | |
| 25 | struct work_struct node_work; | |
| 26 | #endif | |
| 1da177e4 LT |
27 | }; |
| 28 | ||
| c04fc586 | 29 | struct memory_block; |
| 8732794b | 30 | extern struct node *node_devices[]; |
| 9a305230 | 31 | typedef void (*node_registration_func_t)(struct node *); |
| 0fc44159 | 32 | |
| 4b45099b | 33 | extern void unregister_node(struct node *node); |
| 36920e06 | 34 | #ifdef CONFIG_NUMA |
| 0fc44159 YG |
35 | extern int register_one_node(int nid); |
| 36 | extern void unregister_one_node(int nid); | |
| 76b67ed9 KH |
37 | extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); |
| 38 | extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); | |
| c04fc586 GH |
39 | extern int register_mem_sect_under_node(struct memory_block *mem_blk, |
| 40 | int nid); | |
| d3360164 NF |
41 | extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, |
| 42 | unsigned long phys_index); | |
| 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 | } | |
| d3360164 NF |
70 | static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, |
| 71 | unsigned long phys_index) | |
| c04fc586 GH |
72 | { |
| 73 | return 0; | |
| 74 | } | |
| 9a305230 LS |
75 | |
| 76 | static inline void register_hugetlbfs_with_node(node_registration_func_t reg, | |
| 77 | node_registration_func_t unreg) | |
| 78 | { | |
| 79 | } | |
| 76b67ed9 | 80 | #endif |
| 1da177e4 | 81 | |
| 10fbcf4c | 82 | #define to_node(device) container_of(device, struct node, dev) |
| 1da177e4 LT |
83 | |
| 84 | #endif /* _LINUX_NODE_H_ */ |