diff options
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/numa_64.h | 2 | ||||
| -rw-r--r-- | include/asm-x86/topology.h | 15 |
2 files changed, 13 insertions, 4 deletions
diff --git a/include/asm-x86/numa_64.h b/include/asm-x86/numa_64.h index 941889471b5..c797cd523d2 100644 --- a/include/asm-x86/numa_64.h +++ b/include/asm-x86/numa_64.h @@ -40,6 +40,4 @@ static inline void clear_node_cpumask(int cpu) #define clear_node_cpumask(cpu) do {} while (0) #endif -#define NUMA_NO_NODE 0xffff - #endif diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h index f8706b2a3d8..e612ed8d2bc 100644 --- a/include/asm-x86/topology.h +++ b/include/asm-x86/topology.h @@ -30,13 +30,24 @@ #include <asm/mpspec.h> /* Mappings between logical cpu number and node number */ -extern u16 cpu_to_node_map[]; +DECLARE_PER_CPU(u16, x86_cpu_to_node_map); +extern u16 __initdata x86_cpu_to_node_map_init[]; +extern void *x86_cpu_to_node_map_early_ptr; extern cpumask_t node_to_cpumask_map[]; +#define NUMA_NO_NODE ((u16)(~0)) + /* Returns the number of the node containing CPU 'cpu' */ static inline int cpu_to_node(int cpu) { - return cpu_to_node_map[cpu]; + u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr; + + if (cpu_to_node_map) + return cpu_to_node_map[cpu]; + else if (per_cpu_offset(cpu)) + return per_cpu(x86_cpu_to_node_map, cpu); + else + return NUMA_NO_NODE; } /* |