diff options
Diffstat (limited to 'arch/x86/include/asm/numa.h')
| -rw-r--r-- | arch/x86/include/asm/numa.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index 27da400d3138..5e01c768a575 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -1,5 +1,33 @@ +#ifndef _ASM_X86_NUMA_H +#define _ASM_X86_NUMA_H + +#include <asm/apicdef.h> + +#ifdef CONFIG_NUMA +/* + * __apicid_to_node[] stores the raw mapping between physical apicid and + * node and is used to initialize cpu_to_node mapping. + * + * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus + * should be accessed by the accessors - set_apicid_to_node() and + * numa_cpu_node(). + */ +extern s16 __apicid_to_node[MAX_LOCAL_APIC]; + +static inline void set_apicid_to_node(int apicid, s16 node) +{ + __apicid_to_node[apicid] = node; +} +#else /* CONFIG_NUMA */ +static inline void set_apicid_to_node(int apicid, s16 node) +{ +} +#endif /* CONFIG_NUMA */ + #ifdef CONFIG_X86_32 # include "numa_32.h" #else # include "numa_64.h" #endif + +#endif /* _ASM_X86_NUMA_H */ |