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8255799: AArch64: CPU_A53MAC feature may be set incorrectly

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Reviewed-by: ngasson, aph
This commit is contained in:
Anton Kozlov 2020-11-09 01:35:26 +00:00 committed by Nick Gasson
parent 2cad836833
commit 2c8f4e202b
1 changed files with 0 additions and 4 deletions
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4
src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
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@ -181,10 +181,6 @@ void VM_Version::initialize() {
}
if (_cpu == CPU_ARM && (_model == 0xd07 || _model2 == 0xd07)) _features |= CPU_STXR_PREFETCH;
// If an olde style /proc/cpuinfo (cores == 1) then if _model is an A57 (0xd07)
// we assume the worst and assume we could be on a big little system and have
// undisclosed A53 cores which we could be swapped to at any stage
if (_cpu == CPU_ARM && os::processor_count() == 1 && _model == 0xd07) _features |= CPU_A53MAC;
char buf[512];
sprintf(buf, "0x%02x:0x%x:0x%03x:%d", _cpu, _variant, _model, _revision);