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src/cpu/aarch64/vm/vm_version_aarch64.cpp
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@@ -135,19 +135,27 @@
FLAG_SET_DEFAULT(AllocatePrefetchStepSize, dcache_line);
if (FLAG_IS_DEFAULT(PrefetchScanIntervalInBytes))
FLAG_SET_DEFAULT(PrefetchScanIntervalInBytes, 3*dcache_line);
if (FLAG_IS_DEFAULT(PrefetchCopyIntervalInBytes))
FLAG_SET_DEFAULT(PrefetchCopyIntervalInBytes, 3*dcache_line);
+ if (FLAG_IS_DEFAULT(SoftwarePrefetchHintDistance))
+ FLAG_SET_DEFAULT(SoftwarePrefetchHintDistance, 3*dcache_line);
if (PrefetchCopyIntervalInBytes != -1 &&
((PrefetchCopyIntervalInBytes & 7) || (PrefetchCopyIntervalInBytes >= 32768))) {
warning("PrefetchCopyIntervalInBytes must be -1, or a multiple of 8 and < 32768");
PrefetchCopyIntervalInBytes &= ~7;
if (PrefetchCopyIntervalInBytes >= 32768)
PrefetchCopyIntervalInBytes = 32760;
}
+ if (SoftwarePrefetchHintDistance != -1 &&
+ (SoftwarePrefetchHintDistance & 7)) {
+ warning("SoftwarePrefetchHintDistance must be -1, or a multiple of 8");
+ SoftwarePrefetchHintDistance &= ~7;
+ }
+
unsigned long auxv = getauxval(AT_HWCAP);
char buf[512];
_features = auxv;
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