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Fixed x2APIC discovery for 256-processor architectures. 

Mask for value read from ebx register returned by CPUID expanded to 0xFFFF.

Differential Revision: https://reviews.llvm.org/D23203

llvm-svn: 277825
This commit is contained in:
Andrey Churbanov 2016-08-05 15:59:11 +00:00
parent 91c8450967
commit 5bf494e73d
1 changed files with 3 additions and 3 deletions
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6
openmp/runtime/src/kmp_affinity.cpp
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@ -1429,7 +1429,7 @@ __kmp_affinity_create_x2apicid_map(AddrUnsPair **address2os,
threadLevel = level;
coreLevel = -1;
pkgLevel = -1;
__kmp_nThreadsPerCore = buf.ebx & 0xff;
__kmp_nThreadsPerCore = buf.ebx & 0xffff;
if (__kmp_nThreadsPerCore == 0) {
*msg_id = kmp_i18n_str_InvalidCpuidInfo;
return -1;
@ -1441,7 +1441,7 @@ __kmp_affinity_create_x2apicid_map(AddrUnsPair **address2os,
//
coreLevel = level;
pkgLevel = -1;
nCoresPerPkg = buf.ebx & 0xff;
nCoresPerPkg = buf.ebx & 0xffff;
if (nCoresPerPkg == 0) {
*msg_id = kmp_i18n_str_InvalidCpuidInfo;
return -1;
@ -1456,7 +1456,7 @@ __kmp_affinity_create_x2apicid_map(AddrUnsPair **address2os,
continue;
}
pkgLevel = level;
nPackages = buf.ebx & 0xff;
nPackages = buf.ebx & 0xffff;
if (nPackages == 0) {
*msg_id = kmp_i18n_str_InvalidCpuidInfo;
return -1;