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1 | #ifndef _ASM_X86_64_TOPOLOGY_H |
2 | #define _ASM_X86_64_TOPOLOGY_H | |
3 | ||
4 | #include <linux/config.h> | |
5 | ||
2b97690f | 6 | #ifdef CONFIG_NUMA |
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7 | |
8 | #include <asm/mpspec.h> | |
9 | #include <asm/bitops.h> | |
10 | ||
11 | /* Map the K8 CPU local memory controllers to a simple 1:1 CPU:NODE topology */ | |
12 | ||
13 | extern cpumask_t cpu_online_map; | |
14 | ||
15 | extern unsigned char cpu_to_node[]; | |
16 | extern cpumask_t node_to_cpumask[]; | |
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17 | |
18 | #ifdef CONFIG_ACPI_NUMA | |
19 | extern int __node_distance(int, int); | |
20 | #define node_distance(a,b) __node_distance(a,b) | |
21 | /* #else fallback version */ | |
22 | #endif | |
23 | ||
24 | #define cpu_to_node(cpu) (cpu_to_node[cpu]) | |
25 | #define parent_node(node) (node) | |
c660439b | 26 | #define node_to_first_cpu(node) (first_cpu(node_to_cpumask[node])) |
1da177e4 | 27 | #define node_to_cpumask(node) (node_to_cpumask[node]) |
69e1a33f | 28 | #define pcibus_to_node(bus) ((long)(bus->sysdata)) |
8c5a0908 | 29 | #define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus)); |
1da177e4 | 30 | |
69d81fcd AK |
31 | #define numa_node_id() read_pda(nodenumber) |
32 | ||
1da177e4 LT |
33 | /* sched_domains SD_NODE_INIT for x86_64 machines */ |
34 | #define SD_NODE_INIT (struct sched_domain) { \ | |
35 | .span = CPU_MASK_NONE, \ | |
36 | .parent = NULL, \ | |
37 | .groups = NULL, \ | |
38 | .min_interval = 8, \ | |
39 | .max_interval = 32, \ | |
40 | .busy_factor = 32, \ | |
41 | .imbalance_pct = 125, \ | |
7897986b NP |
42 | .cache_nice_tries = 2, \ |
43 | .busy_idx = 3, \ | |
44 | .idle_idx = 2, \ | |
687f1661 | 45 | .newidle_idx = 0, \ |
7897986b | 46 | .wake_idx = 1, \ |
147cbb4b | 47 | .forkexec_idx = 1, \ |
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48 | .per_cpu_gain = 100, \ |
49 | .flags = SD_LOAD_BALANCE \ | |
147cbb4b | 50 | | SD_BALANCE_FORK \ |
1da177e4 | 51 | | SD_BALANCE_EXEC \ |
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52 | | SD_WAKE_BALANCE, \ |
53 | .last_balance = jiffies, \ | |
54 | .balance_interval = 1, \ | |
55 | .nr_balance_failed = 0, \ | |
56 | } | |
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57 | |
58 | #endif | |
59 | ||
60 | #include <asm-generic/topology.h> | |
61 | ||
62 | #endif |