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| author | Mike Travis <travis@sgi.com> | 2008-03-25 15:06:51 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:34 +0200 |
| commit | b447a468fcd130aa8951672b6115c673c274e888 (patch) | |
| tree | 3824624df1191cb1e6abbf9f9dbeca3f9d8c17f8 /arch | |
| parent | a24eae88ad3767d0a4a940a10e4a9cec849b7778 (diff) | |
| download | linux-3.10-b447a468fcd130aa8951672b6115c673c274e888.tar.gz linux-3.10-b447a468fcd130aa8951672b6115c673c274e888.tar.bz2 linux-3.10-b447a468fcd130aa8951672b6115c673c274e888.zip | |
x86: clean up non-smp usage of cpu maps
Cleanup references to the early cpu maps for the non-SMP configuration
and remove some functions called for SMP configurations only.
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/setup.c | 28 | ||||
| -rw-r--r-- | arch/x86/mm/numa_64.c | 4 |
2 files changed, 14 insertions, 18 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 1179aa06cdb..dc7940955b7 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -10,7 +10,7 @@ #include <asm/setup.h> #include <asm/topology.h> -#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA +#if defined(CONFIG_HAVE_SETUP_PER_CPU_AREA) && defined(CONFIG_SMP) /* * Copy data used in early init routines from the initial arrays to the * per cpu data areas. These arrays then become expendable and the @@ -21,22 +21,13 @@ static void __init setup_per_cpu_maps(void) int cpu; for_each_possible_cpu(cpu) { -#ifdef CONFIG_SMP - if (per_cpu_offset(cpu)) { -#endif - per_cpu(x86_cpu_to_apicid, cpu) = - x86_cpu_to_apicid_init[cpu]; - per_cpu(x86_bios_cpu_apicid, cpu) = + per_cpu(x86_cpu_to_apicid, cpu) = x86_cpu_to_apicid_init[cpu]; + per_cpu(x86_bios_cpu_apicid, cpu) = x86_bios_cpu_apicid_init[cpu]; #ifdef CONFIG_NUMA - per_cpu(x86_cpu_to_node_map, cpu) = + per_cpu(x86_cpu_to_node_map, cpu) = x86_cpu_to_node_map_init[cpu]; #endif -#ifdef CONFIG_SMP - } else - printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n", - cpu); -#endif } /* indicate the early static arrays will soon be gone */ @@ -72,17 +63,20 @@ void __init setup_per_cpu_areas(void) /* Copy section for each CPU (we discard the original) */ size = PERCPU_ENOUGH_ROOM; - printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n", size); - for_each_cpu_mask(i, cpu_possible_map) { + + for_each_possible_cpu(i) { char *ptr; #ifndef CONFIG_NEED_MULTIPLE_NODES ptr = alloc_bootmem_pages(size); #else int node = early_cpu_to_node(i); - if (!node_online(node) || !NODE_DATA(node)) + if (!node_online(node) || !NODE_DATA(node)) { ptr = alloc_bootmem_pages(size); + printk(KERN_INFO + "cpu %d has no node or node-local memory\n", i); + } else ptr = alloc_bootmem_pages_node(NODE_DATA(node), size); #endif @@ -96,7 +90,7 @@ void __init setup_per_cpu_areas(void) memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); } - /* setup percpu data maps early */ + /* Setup percpu data maps */ setup_per_cpu_maps(); } diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 18267a02e67..2ea56f48f29 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -31,13 +31,15 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES]; struct memnode memnode; +#ifdef CONFIG_SMP int x86_cpu_to_node_map_init[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE }; void *x86_cpu_to_node_map_early_ptr; +EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr); +#endif DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE; EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map); -EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr); s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE |