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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6588 | serge | 1 | #ifndef _ASM_X86_NUMA_H |
| 2 | #define _ASM_X86_NUMA_H |
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| 3 | |||
| 4 | #include |
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| 5 | |||
| 6 | #include |
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| 7 | #include |
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| 8 | |||
| 9 | #ifdef CONFIG_NUMA |
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| 10 | |||
| 11 | #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) |
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| 12 | |||
| 13 | /* |
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| 14 | * Too small node sizes may confuse the VM badly. Usually they |
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| 15 | * result from BIOS bugs. So dont recognize nodes as standalone |
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| 16 | * NUMA entities that have less than this amount of RAM listed: |
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| 17 | */ |
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| 18 | #define NODE_MIN_SIZE (4*1024*1024) |
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| 19 | |||
| 20 | extern int numa_off; |
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| 21 | |||
| 22 | /* |
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| 23 | * __apicid_to_node[] stores the raw mapping between physical apicid and |
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| 24 | * node and is used to initialize cpu_to_node mapping. |
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| 25 | * |
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| 26 | * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus |
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| 27 | * should be accessed by the accessors - set_apicid_to_node() and |
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| 28 | * numa_cpu_node(). |
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| 29 | */ |
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| 30 | extern s16 __apicid_to_node[MAX_LOCAL_APIC]; |
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| 31 | extern nodemask_t numa_nodes_parsed __initdata; |
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| 32 | |||
| 33 | extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); |
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| 34 | extern void __init numa_set_distance(int from, int to, int distance); |
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| 35 | |||
| 36 | static inline void set_apicid_to_node(int apicid, s16 node) |
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| 37 | { |
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| 38 | __apicid_to_node[apicid] = node; |
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| 39 | } |
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| 40 | |||
| 41 | extern int numa_cpu_node(int cpu); |
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| 42 | |||
| 43 | #else /* CONFIG_NUMA */ |
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| 44 | static inline void set_apicid_to_node(int apicid, s16 node) |
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| 45 | { |
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| 46 | } |
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| 47 | |||
| 48 | static inline int numa_cpu_node(int cpu) |
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| 49 | { |
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| 50 | return NUMA_NO_NODE; |
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| 51 | } |
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| 52 | #endif /* CONFIG_NUMA */ |
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| 53 | |||
| 54 | #ifdef CONFIG_X86_32 |
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| 55 | # include |
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| 56 | #endif |
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| 57 | |||
| 58 | #ifdef CONFIG_NUMA |
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| 59 | extern void numa_set_node(int cpu, int node); |
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| 60 | extern void numa_clear_node(int cpu); |
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| 61 | extern void __init init_cpu_to_node(void); |
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| 62 | extern void numa_add_cpu(int cpu); |
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| 63 | extern void numa_remove_cpu(int cpu); |
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| 64 | #else /* CONFIG_NUMA */ |
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| 65 | static inline void numa_set_node(int cpu, int node) { } |
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| 66 | static inline void numa_clear_node(int cpu) { } |
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| 67 | static inline void init_cpu_to_node(void) { } |
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| 68 | static inline void numa_add_cpu(int cpu) { } |
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| 69 | static inline void numa_remove_cpu(int cpu) { } |
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| 70 | #endif /* CONFIG_NUMA */ |
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| 71 | |||
| 72 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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| 73 | void debug_cpumask_set_cpu(int cpu, int node, bool enable); |
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| 74 | #endif |
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| 75 | |||
| 76 | #ifdef CONFIG_NUMA_EMU |
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| 77 | #define FAKE_NODE_MIN_SIZE ((u64)32 << 20) |
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| 78 | #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) |
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| 79 | void numa_emu_cmdline(char *); |
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| 80 | #endif /* CONFIG_NUMA_EMU */ |
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| 81 | |||
| 82 | #endif /* _ASM_X86_NUMA_H */ |