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src/hotspot/cpu/x86/vm_version_x86.hpp
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*** 493,509 ****
uint64_t result = 0;
if (_cpuid_info.std_cpuid1_edx.bits.cmpxchg8 != 0)
result |= CPU_CX8;
if (_cpuid_info.std_cpuid1_edx.bits.cmov != 0)
result |= CPU_CMOV;
! if (_cpuid_info.std_cpuid1_edx.bits.fxsr != 0 || (is_amd() &&
_cpuid_info.ext_cpuid1_edx.bits.fxsr != 0))
result |= CPU_FXSR;
// HT flag is set for multi-core processors also.
if (threads_per_core() > 1)
result |= CPU_HT;
! if (_cpuid_info.std_cpuid1_edx.bits.mmx != 0 || (is_amd() &&
_cpuid_info.ext_cpuid1_edx.bits.mmx != 0))
result |= CPU_MMX;
if (_cpuid_info.std_cpuid1_edx.bits.sse != 0)
result |= CPU_SSE;
if (_cpuid_info.std_cpuid1_edx.bits.sse2 != 0)
--- 493,509 ----
uint64_t result = 0;
if (_cpuid_info.std_cpuid1_edx.bits.cmpxchg8 != 0)
result |= CPU_CX8;
if (_cpuid_info.std_cpuid1_edx.bits.cmov != 0)
result |= CPU_CMOV;
! if (_cpuid_info.std_cpuid1_edx.bits.fxsr != 0 || ((is_amd() || is_hygon()) &&
_cpuid_info.ext_cpuid1_edx.bits.fxsr != 0))
result |= CPU_FXSR;
// HT flag is set for multi-core processors also.
if (threads_per_core() > 1)
result |= CPU_HT;
! if (_cpuid_info.std_cpuid1_edx.bits.mmx != 0 || ((is_amd() || is_hygon()) &&
_cpuid_info.ext_cpuid1_edx.bits.mmx != 0))
result |= CPU_MMX;
if (_cpuid_info.std_cpuid1_edx.bits.sse != 0)
result |= CPU_SSE;
if (_cpuid_info.std_cpuid1_edx.bits.sse2 != 0)
*** 574,585 ****
if (_cpuid_info.sef_cpuid7_ebx.bits.sha != 0)
result |= CPU_SHA;
if (_cpuid_info.std_cpuid1_ecx.bits.fma != 0)
result |= CPU_FMA;
! // AMD features.
! if (is_amd()) {
if ((_cpuid_info.ext_cpuid1_edx.bits.tdnow != 0) ||
(_cpuid_info.ext_cpuid1_ecx.bits.prefetchw != 0))
result |= CPU_3DNOW_PREFETCH;
if (_cpuid_info.ext_cpuid1_ecx.bits.lzcnt != 0)
result |= CPU_LZCNT;
--- 574,585 ----
if (_cpuid_info.sef_cpuid7_ebx.bits.sha != 0)
result |= CPU_SHA;
if (_cpuid_info.std_cpuid1_ecx.bits.fma != 0)
result |= CPU_FMA;
! // AMD|Hygon features.
! if (is_amd() || is_hygon()) {
if ((_cpuid_info.ext_cpuid1_edx.bits.tdnow != 0) ||
(_cpuid_info.ext_cpuid1_ecx.bits.prefetchw != 0))
result |= CPU_3DNOW_PREFETCH;
if (_cpuid_info.ext_cpuid1_ecx.bits.lzcnt != 0)
result |= CPU_LZCNT;
*** 709,718 ****
--- 709,719 ----
// determine whether a particular instruction is supported.
//
static int cpu_family() { return _cpu;}
static bool is_P6() { return cpu_family() >= 6; }
static bool is_amd() { assert_is_initialized(); return _cpuid_info.std_vendor_name_0 == 0x68747541; } // 'htuA'
+ static bool is_hygon() { assert_is_initialized(); return _cpuid_info.std_vendor_name_0 == 0x6F677948; } // 'ogyH'
static bool is_intel() { assert_is_initialized(); return _cpuid_info.std_vendor_name_0 == 0x756e6547; } // 'uneG'
static bool is_zx() { assert_is_initialized(); return (_cpuid_info.std_vendor_name_0 == 0x746e6543) || (_cpuid_info.std_vendor_name_0 == 0x68532020); } // 'tneC'||'hS '
static bool is_atom_family() { return ((cpu_family() == 0x06) && ((extended_cpu_model() == 0x36) || (extended_cpu_model() == 0x37) || (extended_cpu_model() == 0x4D))); } //Silvermont and Centerton
static bool is_knights_family() { return ((cpu_family() == 0x06) && ((extended_cpu_model() == 0x57) || (extended_cpu_model() == 0x85))); } // Xeon Phi 3200/5200/7200 and Future Xeon Phi
*** 732,742 ****
_cpuid_info.tpl_cpuidB0_ebx.bits.logical_cpus;
}
if (!supports_topology || result == 0) {
result = (_cpuid_info.dcp_cpuid4_eax.bits.cores_per_cpu + 1);
}
! } else if (is_amd()) {
result = (_cpuid_info.ext_cpuid8_ecx.bits.cores_per_cpu + 1);
} else if (is_zx()) {
bool supports_topology = supports_processor_topology();
if (supports_topology) {
result = _cpuid_info.tpl_cpuidB1_ebx.bits.logical_cpus /
--- 733,743 ----
_cpuid_info.tpl_cpuidB0_ebx.bits.logical_cpus;
}
if (!supports_topology || result == 0) {
result = (_cpuid_info.dcp_cpuid4_eax.bits.cores_per_cpu + 1);
}
! } else if (is_amd() || is_hygon()) {
result = (_cpuid_info.ext_cpuid8_ecx.bits.cores_per_cpu + 1);
} else if (is_zx()) {
bool supports_topology = supports_processor_topology();
if (supports_topology) {
result = _cpuid_info.tpl_cpuidB1_ebx.bits.logical_cpus /
*** 768,778 ****
static intx L1_line_size() {
intx result = 0;
if (is_intel()) {
result = (_cpuid_info.dcp_cpuid4_ebx.bits.L1_line_size + 1);
! } else if (is_amd()) {
result = _cpuid_info.ext_cpuid5_ecx.bits.L1_line_size;
} else if (is_zx()) {
result = (_cpuid_info.dcp_cpuid4_ebx.bits.L1_line_size + 1);
}
if (result < 32) // not defined ?
--- 769,779 ----
static intx L1_line_size() {
intx result = 0;
if (is_intel()) {
result = (_cpuid_info.dcp_cpuid4_ebx.bits.L1_line_size + 1);
! } else if (is_amd() || is_hygon()) {
result = _cpuid_info.ext_cpuid5_ecx.bits.L1_line_size;
} else if (is_zx()) {
result = (_cpuid_info.dcp_cpuid4_ebx.bits.L1_line_size + 1);
}
if (result < 32) // not defined ?
*** 855,865 ****
return false;
}
// AMD features
static bool supports_3dnow_prefetch() { return (_features & CPU_3DNOW_PREFETCH) != 0; }
! static bool supports_mmx_ext() { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; }
static bool supports_lzcnt() { return (_features & CPU_LZCNT) != 0; }
static bool supports_sse4a() { return (_features & CPU_SSE4A) != 0; }
static bool is_amd_Barcelona() { return is_amd() &&
extended_cpu_family() == CPU_FAMILY_AMD_11H; }
--- 856,866 ----
return false;
}
// AMD features
static bool supports_3dnow_prefetch() { return (_features & CPU_3DNOW_PREFETCH) != 0; }
! static bool supports_mmx_ext() { return (is_amd()||is_hygon()) && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; }
static bool supports_lzcnt() { return (_features & CPU_LZCNT) != 0; }
static bool supports_sse4a() { return (_features & CPU_SSE4A) != 0; }
static bool is_amd_Barcelona() { return is_amd() &&
extended_cpu_family() == CPU_FAMILY_AMD_11H; }
*** 868,878 ****
static bool supports_tscinv_bit() {
return (_features & CPU_TSCINV) != 0;
}
static bool supports_tscinv() {
return supports_tscinv_bit() &&
! ( (is_amd() && !is_amd_Barcelona()) ||
is_intel_tsc_synched_at_init() );
}
// Intel Core and newer cpus have fast IDIV instruction (excluding Atom).
static bool has_fast_idiv() { return is_intel() && cpu_family() == 6 &&
--- 869,879 ----
static bool supports_tscinv_bit() {
return (_features & CPU_TSCINV) != 0;
}
static bool supports_tscinv() {
return supports_tscinv_bit() &&
! ( ((is_amd()||is_hygon()) && !is_amd_Barcelona()) ||
is_intel_tsc_synched_at_init() );
}
// Intel Core and newer cpus have fast IDIV instruction (excluding Atom).
static bool has_fast_idiv() { return is_intel() && cpu_family() == 6 &&
*** 894,904 ****
// Athlon - 128 / prefetchnta
// Opteron - 256 / prefetchnta
// Core - 256 / prefetchnta
// It will be used only when AllocatePrefetchStyle > 0
! if (is_amd()) { // AMD
if (supports_sse2()) {
return 256; // Opteron
} else {
return 128; // Athlon
}
--- 895,905 ----
// Athlon - 128 / prefetchnta
// Opteron - 256 / prefetchnta
// Core - 256 / prefetchnta
// It will be used only when AllocatePrefetchStyle > 0
! if (is_amd() || is_hygon()) { // AMD
if (supports_sse2()) {
return 256; // Opteron
} else {
return 128; // Athlon
}
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