diff options
Diffstat (limited to 'arch/x86/include/asm/numa.h')
-rw-r--r-- | arch/x86/include/asm/numa.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index 27da400d3138..bfacd2ccf651 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h | |||
@@ -1,5 +1,85 @@ | |||
1 | #ifndef _ASM_X86_NUMA_H | ||
2 | #define _ASM_X86_NUMA_H | ||
3 | |||
4 | #include <linux/nodemask.h> | ||
5 | |||
6 | #include <asm/topology.h> | ||
7 | #include <asm/apicdef.h> | ||
8 | |||
9 | #ifdef CONFIG_NUMA | ||
10 | |||
11 | #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) | ||
12 | #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT)) | ||
13 | |||
14 | /* | ||
15 | * Too small node sizes may confuse the VM badly. Usually they | ||
16 | * result from BIOS bugs. So dont recognize nodes as standalone | ||
17 | * NUMA entities that have less than this amount of RAM listed: | ||
18 | */ | ||
19 | #define NODE_MIN_SIZE (4*1024*1024) | ||
20 | |||
21 | extern int numa_off; | ||
22 | |||
23 | /* | ||
24 | * __apicid_to_node[] stores the raw mapping between physical apicid and | ||
25 | * node and is used to initialize cpu_to_node mapping. | ||
26 | * | ||
27 | * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus | ||
28 | * should be accessed by the accessors - set_apicid_to_node() and | ||
29 | * numa_cpu_node(). | ||
30 | */ | ||
31 | extern s16 __apicid_to_node[MAX_LOCAL_APIC]; | ||
32 | extern nodemask_t numa_nodes_parsed __initdata; | ||
33 | |||
34 | extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); | ||
35 | extern void __init numa_set_distance(int from, int to, int distance); | ||
36 | |||
37 | static inline void set_apicid_to_node(int apicid, s16 node) | ||
38 | { | ||
39 | __apicid_to_node[apicid] = node; | ||
40 | } | ||
41 | |||
42 | extern int __cpuinit numa_cpu_node(int cpu); | ||
43 | |||
44 | #else /* CONFIG_NUMA */ | ||
45 | static inline void set_apicid_to_node(int apicid, s16 node) | ||
46 | { | ||
47 | } | ||
48 | |||
49 | static inline int numa_cpu_node(int cpu) | ||
50 | { | ||
51 | return NUMA_NO_NODE; | ||
52 | } | ||
53 | #endif /* CONFIG_NUMA */ | ||
54 | |||
1 | #ifdef CONFIG_X86_32 | 55 | #ifdef CONFIG_X86_32 |
2 | # include "numa_32.h" | 56 | # include "numa_32.h" |
3 | #else | 57 | #else |
4 | # include "numa_64.h" | 58 | # include "numa_64.h" |
5 | #endif | 59 | #endif |
60 | |||
61 | #ifdef CONFIG_NUMA | ||
62 | extern void __cpuinit numa_set_node(int cpu, int node); | ||
63 | extern void __cpuinit numa_clear_node(int cpu); | ||
64 | extern void __init init_cpu_to_node(void); | ||
65 | extern void __cpuinit numa_add_cpu(int cpu); | ||
66 | extern void __cpuinit numa_remove_cpu(int cpu); | ||
67 | #else /* CONFIG_NUMA */ | ||
68 | static inline void numa_set_node(int cpu, int node) { } | ||
69 | static inline void numa_clear_node(int cpu) { } | ||
70 | static inline void init_cpu_to_node(void) { } | ||
71 | static inline void numa_add_cpu(int cpu) { } | ||
72 | static inline void numa_remove_cpu(int cpu) { } | ||
73 | #endif /* CONFIG_NUMA */ | ||
74 | |||
75 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS | ||
76 | void debug_cpumask_set_cpu(int cpu, int node, bool enable); | ||
77 | #endif | ||
78 | |||
79 | #ifdef CONFIG_NUMA_EMU | ||
80 | #define FAKE_NODE_MIN_SIZE ((u64)32 << 20) | ||
81 | #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) | ||
82 | void numa_emu_cmdline(char *); | ||
83 | #endif /* CONFIG_NUMA_EMU */ | ||
84 | |||
85 | #endif /* _ASM_X86_NUMA_H */ | ||