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hotspot/src/cpu/x86/vm/vm_version_x86_64.hpp
changeset 1437 d1846c1c04c4
parent 1 489c9b5090e2
child 1623 a0dd9009e992
equal deleted inserted replaced
1436:6869d58f4f58 1437:d1846c1c04c4 
    66                cid      : 1,
 
    66                cid      : 1,
 
    67                         : 2,
 
    67                         : 2,
 
    68                cmpxchg16: 1,
 
    68                cmpxchg16: 1,
 
    69                         : 4,
 
    69                         : 4,
 
    70                dca      : 1,
 
    70                dca      : 1,
 
    71                         : 4,
 
    71                sse4_1   : 1,
 
    72                popcnt   : 1,
 
    72                sse4_2   : 1,
 
    73                         : 8;
 
    73                         : 11;
 
    74     } bits;
 
    74     } bits;
 
    75   };
 
    75   };
 
    76 
    76 
    77   union StdCpuid1Edx {
 
    77   union StdCpuid1Edx {
 
    78     uint32_t value;
 
    78     uint32_t value;
 
   175      CPU_3DNOW= (1 << 5),
 
   175      CPU_3DNOW= (1 << 5),
 
   176      CPU_SSE  = (1 << 6),
 
   176      CPU_SSE  = (1 << 6),
 
   177      CPU_SSE2 = (1 << 7),
 
   177      CPU_SSE2 = (1 << 7),
 
   178      CPU_SSE3 = (1 << 8),
 
   178      CPU_SSE3 = (1 << 8),
 
   179      CPU_SSSE3= (1 << 9),
 
   179      CPU_SSSE3= (1 << 9),
 
   180      CPU_SSE4 = (1 <<10),
 
   180      CPU_SSE4A= (1 <<10),
 
   181      CPU_SSE4A= (1 <<11)
 
   181      CPU_SSE4_1 = (1 << 11),
 
       
   182      CPU_SSE4_2 = (1 << 12)
 
   182    } cpuFeatureFlags;
 
   183    } cpuFeatureFlags;
 
   183 
   184 
   184   // cpuid information block.  All info derived from executing cpuid with
 
   185   // cpuid information block.  All info derived from executing cpuid with
 
   185   // various function numbers is stored here.  Intel and AMD info is
 
   186   // various function numbers is stored here.  Intel and AMD info is
 
   186   // merged in this block: accessor methods disentangle it.
 
   187   // merged in this block: accessor methods disentangle it.
 
   238 
   239 
   239   // The actual cpuid info block
 
   240   // The actual cpuid info block
 
   240   static CpuidInfo _cpuid_info;
 
   241   static CpuidInfo _cpuid_info;
 
   241 
   242 
   242   // Extractors and predicates
 
   243   // Extractors and predicates
 
   243   static bool is_extended_cpu_family() {
 
       
   244     const uint32_t Extended_Cpu_Family = 0xf;
 
       
   245     return _cpuid_info.std_cpuid1_eax.bits.family == Extended_Cpu_Family;
 
       
   246   }
 
       
   247   static uint32_t extended_cpu_family() {
 
   244   static uint32_t extended_cpu_family() {
 
   248     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.family;
 
   245     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.family;
 
   249     if (is_extended_cpu_family()) {
 
   246     result += _cpuid_info.std_cpuid1_eax.bits.ext_family;
 
   250       result += _cpuid_info.std_cpuid1_eax.bits.ext_family;
 
       
   251     }
 
       
   252     return result;
 
   247     return result;
 
   253   }
 
   248   }
 
   254   static uint32_t extended_cpu_model() {
 
   249   static uint32_t extended_cpu_model() {
 
   255     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.model;
 
   250     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.model;
 
   256     if (is_extended_cpu_family()) {
 
   251     result |= _cpuid_info.std_cpuid1_eax.bits.ext_model << 4;
 
   257       result |= _cpuid_info.std_cpuid1_eax.bits.ext_model << 4;
 
       
   258     }
 
       
   259     return result;
 
   252     return result;
 
   260   }
 
   253   }
 
   261   static uint32_t cpu_stepping() {
 
   254   static uint32_t cpu_stepping() {
 
   262     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.stepping;
 
   255     uint32_t result = _cpuid_info.std_cpuid1_eax.bits.stepping;
 
   263     return result;
 
   256     return result;
 
   291       result |= CPU_SSE3;
 
   284       result |= CPU_SSE3;
 
   292     if (_cpuid_info.std_cpuid1_ecx.bits.ssse3 != 0)
 
   285     if (_cpuid_info.std_cpuid1_ecx.bits.ssse3 != 0)
 
   293       result |= CPU_SSSE3;
 
   286       result |= CPU_SSSE3;
 
   294     if (is_amd() && _cpuid_info.ext_cpuid1_ecx.bits.sse4a != 0)
 
   287     if (is_amd() && _cpuid_info.ext_cpuid1_ecx.bits.sse4a != 0)
 
   295       result |= CPU_SSE4A;
 
   288       result |= CPU_SSE4A;
 
       
   289     if (_cpuid_info.std_cpuid1_ecx.bits.sse4_1 != 0)
 
       
   290       result |= CPU_SSE4_1;
 
       
   291     if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0)
 
       
   292       result |= CPU_SSE4_2;
 
   296     return result;
 
   293     return result;
 
   297   }
 
   294   }
 
   298 
   295 
   299   static void get_processor_features();
 
   296   static void get_processor_features();
 
   300 
   297 
   378   static bool supports_mmx()      { return (_cpuFeatures & CPU_MMX) != 0; }
 
   375   static bool supports_mmx()      { return (_cpuFeatures & CPU_MMX) != 0; }
 
   379   static bool supports_sse()      { return (_cpuFeatures & CPU_SSE) != 0; }
 
   376   static bool supports_sse()      { return (_cpuFeatures & CPU_SSE) != 0; }
 
   380   static bool supports_sse2()     { return (_cpuFeatures & CPU_SSE2) != 0; }
 
   377   static bool supports_sse2()     { return (_cpuFeatures & CPU_SSE2) != 0; }
 
   381   static bool supports_sse3()     { return (_cpuFeatures & CPU_SSE3) != 0; }
 
   378   static bool supports_sse3()     { return (_cpuFeatures & CPU_SSE3) != 0; }
 
   382   static bool supports_ssse3()    { return (_cpuFeatures & CPU_SSSE3)!= 0; }
 
   379   static bool supports_ssse3()    { return (_cpuFeatures & CPU_SSSE3)!= 0; }
 
   383   static bool supports_sse4()     { return (_cpuFeatures & CPU_SSE4) != 0; }
 
   380   static bool supports_sse4_1()   { return (_cpuFeatures & CPU_SSE4_1) != 0; }
 
       
   381   static bool supports_sse4_2()   { return (_cpuFeatures & CPU_SSE4_2) != 0; }
 
   384   //
 
   382   //
 
   385   // AMD features
 
   383   // AMD features
 
   386   //
 
   384   //
 
   387   static bool supports_3dnow()    { return (_cpuFeatures & CPU_3DNOW) != 0; }
 
   385   static bool supports_3dnow()    { return (_cpuFeatures & CPU_3DNOW) != 0; }
 
   388   static bool supports_mmx_ext()  { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; }
 
   386   static bool supports_mmx_ext()  { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; }
jdk-sandbox