diff options
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 13 | ||||
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/mm/numa.c | 7 |
3 files changed, 18 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index a4712ecad3e9..36fcafb1fd6d 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -66,6 +66,11 @@ static inline int early_cpu_to_node(int cpu) int of_drconf_to_nid_single(struct drmem_lmb *lmb); void update_numa_distance(struct device_node *node); +extern void map_cpu_to_node(int cpu, int node); +#ifdef CONFIG_HOTPLUG_CPU +extern void unmap_cpu_from_node(unsigned long cpu); +#endif /* CONFIG_HOTPLUG_CPU */ + #else static inline int early_cpu_to_node(int cpu) { return 0; } @@ -95,6 +100,14 @@ static inline int of_drconf_to_nid_single(struct drmem_lmb *lmb) } static inline void update_numa_distance(struct device_node *node) {} + +#ifdef CONFIG_SMP +static inline void map_cpu_to_node(int cpu, int node) {} +#ifdef CONFIG_HOTPLUG_CPU +static inline void unmap_cpu_from_node(unsigned long cpu) {} +#endif /* CONFIG_HOTPLUG_CPU */ +#endif /* CONFIG_SMP */ + #endif /* CONFIG_NUMA */ #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 548aa58d25f9..9cc7d3dbf439 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -1442,6 +1442,8 @@ static void remove_cpu_from_masks(int cpu) struct cpumask *(*mask_fn)(int) = cpu_sibling_mask; int i; + unmap_cpu_from_node(cpu); + if (shared_caches) mask_fn = cpu_l2_cache_mask; @@ -1526,6 +1528,7 @@ static void add_cpu_to_masks(int cpu) * This CPU will not be in the online mask yet so we need to manually * add it to it's own thread sibling mask. */ + map_cpu_to_node(cpu, cpu_to_node(cpu)); cpumask_set_cpu(cpu, cpu_sibling_mask(cpu)); cpumask_set_cpu(cpu, cpu_core_mask(cpu)); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 52bc63ee6a6a..6f14c8fb6359 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -142,7 +142,7 @@ static void reset_numa_cpu_lookup_table(void) numa_cpu_lookup_table[cpu] = -1; } -static void map_cpu_to_node(int cpu, int node) +void map_cpu_to_node(int cpu, int node) { update_numa_cpu_lookup_table(cpu, node); @@ -153,7 +153,7 @@ static void map_cpu_to_node(int cpu, int node) } #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PPC_SPLPAR) -static void unmap_cpu_from_node(unsigned long cpu) +void unmap_cpu_from_node(unsigned long cpu) { int node = numa_cpu_lookup_table[cpu]; @@ -800,9 +800,6 @@ static int ppc_numa_cpu_prepare(unsigned int cpu) static int ppc_numa_cpu_dead(unsigned int cpu) { -#ifdef CONFIG_HOTPLUG_CPU - unmap_cpu_from_node(cpu); -#endif return 0; } |