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author | David S. Miller <davem@davemloft.net> | 2014-08-05 18:57:18 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2014-08-05 18:57:18 -0700 |
commit | e9011d086674caeedb0ffb6eb5b8bc5920821df3 (patch) | |
tree | ed5d06353d8dc1fa5f6da349808f8345ca2291a5 /arch/x86/kernel/cpu/intel_cacheinfo.c | |
parent | cfcfe22256d5a8a14924a1145d56017b043b554f (diff) | |
parent | c78f77e20d2ba5d4d5e478e85a6fb42556893e2d (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Conflicts:
arch/sparc/mm/init_64.c
Conflict was simple non-overlapping additions.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/kernel/cpu/intel_cacheinfo.c')
-rw-r--r-- | arch/x86/kernel/cpu/intel_cacheinfo.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index a952e9c85b6..9c8f7394c61 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -730,6 +730,18 @@ unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c) #endif } +#ifdef CONFIG_X86_HT + /* + * If cpu_llc_id is not yet set, this means cpuid_level < 4 which in + * turns means that the only possibility is SMT (as indicated in + * cpuid1). Since cpuid2 doesn't specify shared caches, and we know + * that SMT shares all caches, we can unconditionally set cpu_llc_id to + * c->phys_proc_id. + */ + if (per_cpu(cpu_llc_id, cpu) == BAD_APICID) + per_cpu(cpu_llc_id, cpu) = c->phys_proc_id; +#endif + c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d)); return l2; |