diff options
Diffstat (limited to 'arch/x86/include/asm/numa.h')
| -rw-r--r-- | arch/x86/include/asm/numa.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index a50fc9f493b3..bfacd2ccf651 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -1,12 +1,24 @@ #ifndef _ASM_X86_NUMA_H #define _ASM_X86_NUMA_H +#include <linux/nodemask.h> + #include <asm/topology.h> #include <asm/apicdef.h> #ifdef CONFIG_NUMA #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) +#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT)) + +/* + * Too small node sizes may confuse the VM badly. Usually they + * result from BIOS bugs. So dont recognize nodes as standalone + * NUMA entities that have less than this amount of RAM listed: + */ +#define NODE_MIN_SIZE (4*1024*1024) + +extern int numa_off; /* * __apicid_to_node[] stores the raw mapping between physical apicid and @@ -17,15 +29,27 @@ * numa_cpu_node(). */ extern s16 __apicid_to_node[MAX_LOCAL_APIC]; +extern nodemask_t numa_nodes_parsed __initdata; + +extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); +extern void __init numa_set_distance(int from, int to, int distance); static inline void set_apicid_to_node(int apicid, s16 node) { __apicid_to_node[apicid] = node; } + +extern int __cpuinit numa_cpu_node(int cpu); + #else /* CONFIG_NUMA */ static inline void set_apicid_to_node(int apicid, s16 node) { } + +static inline int numa_cpu_node(int cpu) +{ + return NUMA_NO_NODE; +} #endif /* CONFIG_NUMA */ #ifdef CONFIG_X86_32 @@ -37,14 +61,12 @@ static inline void set_apicid_to_node(int apicid, s16 node) #ifdef CONFIG_NUMA extern void __cpuinit numa_set_node(int cpu, int node); extern void __cpuinit numa_clear_node(int cpu); -extern void __init numa_init_array(void); extern void __init init_cpu_to_node(void); extern void __cpuinit numa_add_cpu(int cpu); extern void __cpuinit numa_remove_cpu(int cpu); #else /* CONFIG_NUMA */ static inline void numa_set_node(int cpu, int node) { } static inline void numa_clear_node(int cpu) { } -static inline void numa_init_array(void) { } static inline void init_cpu_to_node(void) { } static inline void numa_add_cpu(int cpu) { } static inline void numa_remove_cpu(int cpu) { } @@ -54,4 +76,10 @@ static inline void numa_remove_cpu(int cpu) { } void debug_cpumask_set_cpu(int cpu, int node, bool enable); #endif +#ifdef CONFIG_NUMA_EMU +#define FAKE_NODE_MIN_SIZE ((u64)32 << 20) +#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) +void numa_emu_cmdline(char *); +#endif /* CONFIG_NUMA_EMU */ + #endif /* _ASM_X86_NUMA_H */ |