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x86-64, NUMA: Unify emulated distance mapping

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NUMA emulation needs to update node distance information.  It did it
by remapping apicid to PXM mapping, even when amdtopology is being
used.  There is no reason to go through such convolution.  The generic
code has all the information necessary to transform the distance table
to the emulated nid space.

Implement generic distance table transformation in numa_emulation()
and drop private implementations in srat_64 and amdtopology_64.  This
makes find_node_by_addr() and fake_physnodes() and related functions
unnecessary, drop them.

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>
This commit is contained in:
Tejun Heo
2011-02-16 17:11:10 +01:00
parent 6b78cb549b
commit e23bba6044
6 changed files with 40 additions and 176 deletions
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arch/x86/include/asm/numa_64.h
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@ -34,7 +34,6 @@ extern void __init numa_set_distance(int from, int to, int distance);
#define FAKE_NODE_MIN_SIZE ((u64)32 << 20)
#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
void numa_emu_cmdline(char *);
int __init find_node_by_addr(unsigned long addr);
#endif /* CONFIG_NUMA_EMU */
#else
static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; }