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| author | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:07 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:07 +0100 |
| commit | 206e42087a037fa3adca8908fd318a0cb64d4dee (patch) | |
| tree | 044cc262b03c62064a65d13b119b6f73da5c22f4 /arch/x86/mm/numa_64.c | |
| parent | x86-64, NUMA: Move apicid to numa mapping initialization from amd_scan_nodes(... (diff) | |
| download | linux-206e42087a037fa3adca8908fd318a0cb64d4dee.tar.xz linux-206e42087a037fa3adca8908fd318a0cb64d4dee.zip | |
x86-64, NUMA: Use common numa_nodes[]
ACPI and amd are using separate nodes[] array. Add numa_nodes[] and
use them in all NUMA init methods. cutoff_node() cleanup is moved
from srat_64.c to numa_64.c and applied in initmem_init() regardless
of init methods.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/mm/numa_64.c')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 4404e1d649ac..a6b899f7ddd2 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -33,6 +33,8 @@ struct memnode memnode; static unsigned long __initdata nodemap_addr; static unsigned long __initdata nodemap_size; +struct bootnode numa_nodes[MAX_NUMNODES] __initdata; + /* * Given a shift value, try to populate memnodemap[] * Returns : @@ -182,6 +184,22 @@ static void * __init early_node_mem(int nodeid, unsigned long start, return NULL; } +static __init void cutoff_node(int i, unsigned long start, unsigned long end) +{ + struct bootnode *nd = &numa_nodes[i]; + + if (nd->start < start) { + nd->start = start; + if (nd->end < nd->start) + nd->start = nd->end; + } + if (nd->end > end) { + nd->end = end; + if (nd->start > nd->end) + nd->start = nd->end; + } +} + /* Initialize bootmem allocator for a node */ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long end) @@ -638,9 +656,15 @@ void __init initmem_init(void) nodes_clear(mem_nodes_parsed); nodes_clear(node_possible_map); nodes_clear(node_online_map); + memset(numa_nodes, 0, sizeof(numa_nodes)); if (numa_init[i]() < 0) continue; + + /* clean up the node list */ + for (j = 0; j < MAX_NUMNODES; j++) + cutoff_node(j, 0, max_pfn << PAGE_SHIFT); + #ifdef CONFIG_NUMA_EMU setup_physnodes(0, max_pfn << PAGE_SHIFT, i == 0, i == 1); if (cmdline && !numa_emulation(0, max_pfn, i == 0, i == 1)) |