diff options
| author | Tejun Heo <tj@kernel.org> | 2011-01-23 16:37:42 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-28 16:54:10 +0300 |
| commit | 8db78cc4b4048e3add40bca1bc3e55057c319256 (patch) | |
| tree | 16779c36de4baba8add96402a6331820df735f2c /arch/x86/include | |
| parent | de2d9445f1627830ed2ebd00ee9d851986c940b5 (diff) | |
| download | linux-8db78cc4b4048e3add40bca1bc3e55057c319256.tar.xz | |
x86: Unify NUMA initialization between 32 and 64bit
Now that everything else is unified, NUMA initialization can be
unified too.
* numa_init_array() and init_cpu_to_node() are moved from
numa_64 to numa.
* numa_32::initmem_init() is updated to call numa_init_array()
and setup_arch() to call init_cpu_to_node() on 32bit too.
* x86_cpu_to_node_map is now initialized to NUMA_NO_NODE on
32bit too. This is safe now as numa_init_array() will initialize
it early during boot.
This makes NUMA mapping fully initialized before
setup_per_cpu_areas() on 32bit too and thus makes the first
percpu chunk which contains all the static variables and some of
dynamic area allocated with NUMA affinity correctly considered.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: yinghai@kernel.org
Cc: brgerst@gmail.com
Cc: gorcunov@gmail.com
Cc: shaohui.zheng@intel.com
Cc: rientjes@google.com
LKML-Reference: <1295789862-25482-17-git-send-email-tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/numa.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/numa_64.h | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index d3964b28b128..26fc6e2dd0fb 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -34,11 +34,15 @@ 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) { } #endif /* CONFIG_NUMA */ diff --git a/arch/x86/include/asm/numa_64.h b/arch/x86/include/asm/numa_64.h index 123f1856101c..2819afa33632 100644 --- a/arch/x86/include/asm/numa_64.h +++ b/arch/x86/include/asm/numa_64.h @@ -13,7 +13,6 @@ extern int compute_hash_shift(struct bootnode *nodes, int numblks, #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT)) -extern void numa_init_array(void); extern int numa_off; extern unsigned long numa_free_all_bootmem(void); @@ -28,7 +27,6 @@ extern void setup_node_bootmem(int nodeid, unsigned long start, */ #define NODE_MIN_SIZE (4*1024*1024) -extern void __init init_cpu_to_node(void); extern int __cpuinit numa_cpu_node(int cpu); #ifdef CONFIG_NUMA_EMU @@ -37,7 +35,6 @@ extern int __cpuinit numa_cpu_node(int cpu); void numa_emu_cmdline(char *); #endif /* CONFIG_NUMA_EMU */ #else -static inline void init_cpu_to_node(void) { } static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; } #endif |