Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/vm_version_x86.hpp
src/cpu/x86/vm/vm_version_x86.hpp
- changeset 1210
- 93c14e5562c4
- parent 1078
- c771b7f43bbf
- child 1907
- c18cbe5936b8
equal
deleted
inserted
replaced
| 1190:36ee9b69616e | 1210:93c14e5562c4 |
|---|---|
| 118 uint32_t value; | 118 uint32_t value; |
| 119 struct { | 119 struct { |
| 120 uint32_t LahfSahf : 1, | 120 uint32_t LahfSahf : 1, |
| 121 CmpLegacy : 1, | 121 CmpLegacy : 1, |
| 122 : 4, | 122 : 4, |
| 123 abm : 1, | 123 lzcnt : 1, |
| 124 sse4a : 1, | 124 sse4a : 1, |
| 125 misalignsse : 1, | 125 misalignsse : 1, |
| 126 prefetchw : 1, | 126 prefetchw : 1, |
| 127 : 22; | 127 : 22; |
| 128 } bits; | 128 } bits; |
| 180 CPU_SSE3 = (1 << 8), // SSE3 comes from cpuid 1 (ECX) | 180 CPU_SSE3 = (1 << 8), // SSE3 comes from cpuid 1 (ECX) |
| 181 CPU_SSSE3 = (1 << 9), | 181 CPU_SSSE3 = (1 << 9), |
| 182 CPU_SSE4A = (1 << 10), | 182 CPU_SSE4A = (1 << 10), |
| 183 CPU_SSE4_1 = (1 << 11), | 183 CPU_SSE4_1 = (1 << 11), |
| 184 CPU_SSE4_2 = (1 << 12), | 184 CPU_SSE4_2 = (1 << 12), |
| 185 CPU_POPCNT = (1 << 13) | 185 CPU_POPCNT = (1 << 13), |
| 186 CPU_LZCNT = (1 << 14) | |
| 186 } cpuFeatureFlags; | 187 } cpuFeatureFlags; |
| 187 | 188 |
| 188 // cpuid information block. All info derived from executing cpuid with | 189 // cpuid information block. All info derived from executing cpuid with |
| 189 // various function numbers is stored here. Intel and AMD info is | 190 // various function numbers is stored here. Intel and AMD info is |
| 190 // merged in this block: accessor methods disentangle it. | 191 // merged in this block: accessor methods disentangle it. |
| 275 if (threads_per_core() > 1) | 276 if (threads_per_core() > 1) |
| 276 result |= CPU_HT; | 277 result |= CPU_HT; |
| 277 if (_cpuid_info.std_cpuid1_edx.bits.mmx != 0 || is_amd() && | 278 if (_cpuid_info.std_cpuid1_edx.bits.mmx != 0 || is_amd() && |
| 278 _cpuid_info.ext_cpuid1_edx.bits.mmx != 0) | 279 _cpuid_info.ext_cpuid1_edx.bits.mmx != 0) |
| 279 result |= CPU_MMX; | 280 result |= CPU_MMX; |
| 280 if (is_amd() && _cpuid_info.ext_cpuid1_edx.bits.tdnow != 0) | |
| 281 result |= CPU_3DNOW; | |
| 282 if (_cpuid_info.std_cpuid1_edx.bits.sse != 0) | 281 if (_cpuid_info.std_cpuid1_edx.bits.sse != 0) |
| 283 result |= CPU_SSE; | 282 result |= CPU_SSE; |
| 284 if (_cpuid_info.std_cpuid1_edx.bits.sse2 != 0) | 283 if (_cpuid_info.std_cpuid1_edx.bits.sse2 != 0) |
| 285 result |= CPU_SSE2; | 284 result |= CPU_SSE2; |
| 286 if (_cpuid_info.std_cpuid1_ecx.bits.sse3 != 0) | 285 if (_cpuid_info.std_cpuid1_ecx.bits.sse3 != 0) |
| 287 result |= CPU_SSE3; | 286 result |= CPU_SSE3; |
| 288 if (_cpuid_info.std_cpuid1_ecx.bits.ssse3 != 0) | 287 if (_cpuid_info.std_cpuid1_ecx.bits.ssse3 != 0) |
| 289 result |= CPU_SSSE3; | 288 result |= CPU_SSSE3; |
| 290 if (is_amd() && _cpuid_info.ext_cpuid1_ecx.bits.sse4a != 0) | |
| 291 result |= CPU_SSE4A; | |
| 292 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_1 != 0) | 289 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_1 != 0) |
| 293 result |= CPU_SSE4_1; | 290 result |= CPU_SSE4_1; |
| 294 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0) | 291 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0) |
| 295 result |= CPU_SSE4_2; | 292 result |= CPU_SSE4_2; |
| 296 if (_cpuid_info.std_cpuid1_ecx.bits.popcnt != 0) | 293 if (_cpuid_info.std_cpuid1_ecx.bits.popcnt != 0) |
| 297 result |= CPU_POPCNT; | 294 result |= CPU_POPCNT; |
| 295 | |
| 296 // AMD features. | |
| 297 if (is_amd()) { | |
| 298 if (_cpuid_info.ext_cpuid1_edx.bits.tdnow != 0) | |
| 299 result |= CPU_3DNOW; | |
| 300 if (_cpuid_info.ext_cpuid1_ecx.bits.lzcnt != 0) | |
| 301 result |= CPU_LZCNT; | |
| 302 if (_cpuid_info.ext_cpuid1_ecx.bits.sse4a != 0) | |
| 303 result |= CPU_SSE4A; | |
| 304 } | |
| 305 | |
| 298 return result; | 306 return result; |
| 299 } | 307 } |
| 300 | 308 |
| 301 static void get_processor_features(); | 309 static void get_processor_features(); |
| 302 | 310 |
| 389 // AMD features | 397 // AMD features |
| 390 // | 398 // |
| 391 static bool supports_3dnow() { return (_cpuFeatures & CPU_3DNOW) != 0; } | 399 static bool supports_3dnow() { return (_cpuFeatures & CPU_3DNOW) != 0; } |
| 392 static bool supports_mmx_ext() { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; } | 400 static bool supports_mmx_ext() { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.mmx_amd != 0; } |
| 393 static bool supports_3dnow2() { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.tdnow2 != 0; } | 401 static bool supports_3dnow2() { return is_amd() && _cpuid_info.ext_cpuid1_edx.bits.tdnow2 != 0; } |
| 402 static bool supports_lzcnt() { return (_cpuFeatures & CPU_LZCNT) != 0; } | |
| 394 static bool supports_sse4a() { return (_cpuFeatures & CPU_SSE4A) != 0; } | 403 static bool supports_sse4a() { return (_cpuFeatures & CPU_SSE4A) != 0; } |
| 395 | 404 |
| 396 static bool supports_compare_and_exchange() { return true; } | 405 static bool supports_compare_and_exchange() { return true; } |
| 397 | 406 |
| 398 static const char* cpu_features() { return _features_str; } | 407 static const char* cpu_features() { return _features_str; } |
