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x86: unify 32 and 64-bit node_to_cpumask_map

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Impact: cleanup

We take the 64-bit code and use it on 32-bit as well.  The new file
is called mm/numa.c.

In a minor cleanup, we use cpu_none_mask instead of declaring a local
cpu_mask_none.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2009-03-13 14:49:52 +10:30
parent b9c4398ed4
commit 71ee73e722
5 changed files with 83 additions and 94 deletions
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30
arch/x86/include/asm/topology.h
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@@ -44,9 +44,6 @@
#ifdef CONFIG_X86_32
/* Mappings between node number and cpus on that node. */
extern cpumask_t node_to_cpumask_map[];
/* Mappings between logical cpu number and node number */
extern int cpu_to_node_map[];
@@ -57,19 +54,8 @@ static inline int cpu_to_node(int cpu)
}
#define early_cpu_to_node(cpu) cpu_to_node(cpu)
/* Returns a bitmask of CPUs on Node 'node'. */
static inline const struct cpumask *cpumask_of_node(int node)
{
return &node_to_cpumask_map[node];
}
static inline void setup_node_to_cpumask_map(void) { }
#else /* CONFIG_X86_64 */
/* Mappings between node number and cpus on that node. */
extern cpumask_t *node_to_cpumask_map;
/* Mappings between logical cpu number and node number */
DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
@@ -80,7 +66,6 @@ DECLARE_PER_CPU(int, node_number);
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
extern int cpu_to_node(int cpu);
extern int early_cpu_to_node(int cpu);
extern const cpumask_t *cpumask_of_node(int node);
#else /* !CONFIG_DEBUG_PER_CPU_MAPS */
@@ -96,18 +81,25 @@ static inline int early_cpu_to_node(int cpu)
return early_per_cpu(x86_cpu_to_node_map, cpu);
}
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
#endif /* CONFIG_X86_64 */
/* Mappings between node number and cpus on that node. */
extern cpumask_t *node_to_cpumask_map;
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
extern const cpumask_t *cpumask_of_node(int node);
#else
/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
static inline const cpumask_t *cpumask_of_node(int node)
{
return &node_to_cpumask_map[node];
}
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
#endif
extern void setup_node_to_cpumask_map(void);
#endif /* CONFIG_X86_64 */
/*
* Returns the number of the node containing Node 'node'. This
* architecture is flat, so it is a pretty simple function!