Mercurial > hg > truffle

comparison src/cpu/x86/vm/vm_version_x86.hpp @ 4771:22cee0ee8927

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge
author kvn
date Fri, 06 Jan 2012 20:09:20 -0800
parents 7ab5f6318694 127b3692c168
children 4a24c4f648bd
comparison
equal deleted inserted replaced
4755:2b3acb34791f 4771:22cee0ee8927
76 dca : 1, 76 dca : 1,
77 sse4_1 : 1, 77 sse4_1 : 1,
78 sse4_2 : 1, 78 sse4_2 : 1,
79 : 2, 79 : 2,
80 popcnt : 1, 80 popcnt : 1,
81 : 8; 81 : 3,
82 osxsave : 1,
83 avx : 1,
84 : 3;
82 } bits; 85 } bits;
83 }; 86 };
84 87
85 union StdCpuid1Edx { 88 union StdCpuid1Edx {
86 uint32_t value; 89 uint32_t value;
166 L1_assoc : 8, 169 L1_assoc : 8,
167 L1_size : 8; 170 L1_size : 8;
168 } bits; 171 } bits;
169 }; 172 };
170 173
171 union ExtCpuid8Ecx {
172 uint32_t value;
173 struct {
174 uint32_t cores_per_cpu : 8,
175 : 24;
176 } bits;
177 };
178
179 union ExtCpuid7Edx { 174 union ExtCpuid7Edx {
180 uint32_t value; 175 uint32_t value;
181 struct { 176 struct {
182 uint32_t : 8, 177 uint32_t : 8,
183 tsc_invariance : 1, 178 tsc_invariance : 1,
184 : 23; 179 : 23;
180 } bits;
181 };
182
183 union ExtCpuid8Ecx {
184 uint32_t value;
185 struct {
186 uint32_t cores_per_cpu : 8,
187 : 24;
188 } bits;
189 };
190
191 union SefCpuid7Eax {
192 uint32_t value;
193 };
194
195 union SefCpuid7Ebx {
196 uint32_t value;
197 struct {
198 uint32_t fsgsbase : 1,
199 : 2,
200 bmi1 : 1,
201 : 1,
202 avx2 : 1,
203 : 2,
204 bmi2 : 1,
205 : 23;
206 } bits;
207 };
208
209 union XemXcr0Eax {
210 uint32_t value;
211 struct {
212 uint32_t x87 : 1,
213 sse : 1,
214 ymm : 1,
215 : 29;
185 } bits; 216 } bits;
186 }; 217 };
187 218
188 protected: 219 protected:
189 static int _cpu; 220 static int _cpu;
209 CPU_SSE4_1 = (1 << 11), 240 CPU_SSE4_1 = (1 << 11),
210 CPU_SSE4_2 = (1 << 12), 241 CPU_SSE4_2 = (1 << 12),
211 CPU_POPCNT = (1 << 13), 242 CPU_POPCNT = (1 << 13),
212 CPU_LZCNT = (1 << 14), 243 CPU_LZCNT = (1 << 14),
213 CPU_TSC = (1 << 15), 244 CPU_TSC = (1 << 15),
214 CPU_TSCINV = (1 << 16) 245 CPU_TSCINV = (1 << 16),
246 CPU_AVX = (1 << 17),
247 CPU_AVX2 = (1 << 18)
215 } cpuFeatureFlags; 248 } cpuFeatureFlags;
216 249
217 enum { 250 enum {
218 // AMD 251 // AMD
219 CPU_FAMILY_AMD_11H = 17, 252 CPU_FAMILY_AMD_11H = 17,
248 DcpCpuid4Eax dcp_cpuid4_eax; 281 DcpCpuid4Eax dcp_cpuid4_eax;
249 DcpCpuid4Ebx dcp_cpuid4_ebx; 282 DcpCpuid4Ebx dcp_cpuid4_ebx;
250 uint32_t dcp_cpuid4_ecx; // unused currently 283 uint32_t dcp_cpuid4_ecx; // unused currently
251 uint32_t dcp_cpuid4_edx; // unused currently 284 uint32_t dcp_cpuid4_edx; // unused currently
252 285
286 // cpuid function 7 (structured extended features)
287 SefCpuid7Eax sef_cpuid7_eax;
288 SefCpuid7Ebx sef_cpuid7_ebx;
289 uint32_t sef_cpuid7_ecx; // unused currently
290 uint32_t sef_cpuid7_edx; // unused currently
291
253 // cpuid function 0xB (processor topology) 292 // cpuid function 0xB (processor topology)
254 // ecx = 0 293 // ecx = 0
255 uint32_t tpl_cpuidB0_eax; 294 uint32_t tpl_cpuidB0_eax;
256 TplCpuidBEbx tpl_cpuidB0_ebx; 295 TplCpuidBEbx tpl_cpuidB0_ebx;
257 uint32_t tpl_cpuidB0_ecx; // unused currently 296 uint32_t tpl_cpuidB0_ecx; // unused currently
301 // cpuid function 0x80000008 340 // cpuid function 0x80000008
302 uint32_t ext_cpuid8_eax; // unused currently 341 uint32_t ext_cpuid8_eax; // unused currently
303 uint32_t ext_cpuid8_ebx; // reserved 342 uint32_t ext_cpuid8_ebx; // reserved
304 ExtCpuid8Ecx ext_cpuid8_ecx; 343 ExtCpuid8Ecx ext_cpuid8_ecx;
305 uint32_t ext_cpuid8_edx; // reserved 344 uint32_t ext_cpuid8_edx; // reserved
345
346 // extended control register XCR0 (the XFEATURE_ENABLED_MASK register)
347 XemXcr0Eax xem_xcr0_eax;
348 uint32_t xem_xcr0_edx; // reserved
306 }; 349 };
307 350
308 // The actual cpuid info block 351 // The actual cpuid info block
309 static CpuidInfo _cpuid_info; 352 static CpuidInfo _cpuid_info;
310 353
358 result |= CPU_SSE4_1; 401 result |= CPU_SSE4_1;
359 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0) 402 if (_cpuid_info.std_cpuid1_ecx.bits.sse4_2 != 0)
360 result |= CPU_SSE4_2; 403 result |= CPU_SSE4_2;
361 if (_cpuid_info.std_cpuid1_ecx.bits.popcnt != 0) 404 if (_cpuid_info.std_cpuid1_ecx.bits.popcnt != 0)
362 result |= CPU_POPCNT; 405 result |= CPU_POPCNT;
406 if (_cpuid_info.std_cpuid1_ecx.bits.avx != 0 &&
407 _cpuid_info.std_cpuid1_ecx.bits.osxsave != 0 &&
408 _cpuid_info.xem_xcr0_eax.bits.sse != 0 &&
409 _cpuid_info.xem_xcr0_eax.bits.ymm != 0) {
410 result |= CPU_AVX;
411 if (_cpuid_info.sef_cpuid7_ebx.bits.avx2 != 0)
412 result |= CPU_AVX2;
413 }
363 if (_cpuid_info.std_cpuid1_edx.bits.tsc != 0) 414 if (_cpuid_info.std_cpuid1_edx.bits.tsc != 0)
364 result |= CPU_TSC; 415 result |= CPU_TSC;
365 if (_cpuid_info.ext_cpuid7_edx.bits.tsc_invariance != 0) 416 if (_cpuid_info.ext_cpuid7_edx.bits.tsc_invariance != 0)
366 result |= CPU_TSCINV; 417 result |= CPU_TSCINV;
367 418
384 public: 435 public:
385 // Offsets for cpuid asm stub 436 // Offsets for cpuid asm stub
386 static ByteSize std_cpuid0_offset() { return byte_offset_of(CpuidInfo, std_max_function); } 437 static ByteSize std_cpuid0_offset() { return byte_offset_of(CpuidInfo, std_max_function); }
387 static ByteSize std_cpuid1_offset() { return byte_offset_of(CpuidInfo, std_cpuid1_eax); } 438 static ByteSize std_cpuid1_offset() { return byte_offset_of(CpuidInfo, std_cpuid1_eax); }
388 static ByteSize dcp_cpuid4_offset() { return byte_offset_of(CpuidInfo, dcp_cpuid4_eax); } 439 static ByteSize dcp_cpuid4_offset() { return byte_offset_of(CpuidInfo, dcp_cpuid4_eax); }
440 static ByteSize sef_cpuid7_offset() { return byte_offset_of(CpuidInfo, sef_cpuid7_eax); }
389 static ByteSize ext_cpuid1_offset() { return byte_offset_of(CpuidInfo, ext_cpuid1_eax); } 441 static ByteSize ext_cpuid1_offset() { return byte_offset_of(CpuidInfo, ext_cpuid1_eax); }
390 static ByteSize ext_cpuid5_offset() { return byte_offset_of(CpuidInfo, ext_cpuid5_eax); } 442 static ByteSize ext_cpuid5_offset() { return byte_offset_of(CpuidInfo, ext_cpuid5_eax); }
391 static ByteSize ext_cpuid7_offset() { return byte_offset_of(CpuidInfo, ext_cpuid7_eax); } 443 static ByteSize ext_cpuid7_offset() { return byte_offset_of(CpuidInfo, ext_cpuid7_eax); }
392 static ByteSize ext_cpuid8_offset() { return byte_offset_of(CpuidInfo, ext_cpuid8_eax); } 444 static ByteSize ext_cpuid8_offset() { return byte_offset_of(CpuidInfo, ext_cpuid8_eax); }
393 static ByteSize tpl_cpuidB0_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB0_eax); } 445 static ByteSize tpl_cpuidB0_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB0_eax); }
394 static ByteSize tpl_cpuidB1_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB1_eax); } 446 static ByteSize tpl_cpuidB1_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB1_eax); }
395 static ByteSize tpl_cpuidB2_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB2_eax); } 447 static ByteSize tpl_cpuidB2_offset() { return byte_offset_of(CpuidInfo, tpl_cpuidB2_eax); }
448 static ByteSize xem_xcr0_offset() { return byte_offset_of(CpuidInfo, xem_xcr0_eax); }
396 449
397 // Initialization 450 // Initialization
398 static void initialize(); 451 static void initialize();
399 452
400 // Asserts 453 // Asserts
481 static bool supports_sse3() { return (_cpuFeatures & CPU_SSE3) != 0; } 534 static bool supports_sse3() { return (_cpuFeatures & CPU_SSE3) != 0; }
482 static bool supports_ssse3() { return (_cpuFeatures & CPU_SSSE3)!= 0; } 535 static bool supports_ssse3() { return (_cpuFeatures & CPU_SSSE3)!= 0; }
483 static bool supports_sse4_1() { return (_cpuFeatures & CPU_SSE4_1) != 0; } 536 static bool supports_sse4_1() { return (_cpuFeatures & CPU_SSE4_1) != 0; }
484 static bool supports_sse4_2() { return (_cpuFeatures & CPU_SSE4_2) != 0; } 537 static bool supports_sse4_2() { return (_cpuFeatures & CPU_SSE4_2) != 0; }
485 static bool supports_popcnt() { return (_cpuFeatures & CPU_POPCNT) != 0; } 538 static bool supports_popcnt() { return (_cpuFeatures & CPU_POPCNT) != 0; }
539 static bool supports_avx() { return (_cpuFeatures & CPU_AVX) != 0; }
540 static bool supports_avx2() { return (_cpuFeatures & CPU_AVX2) != 0; }
486 static bool supports_tsc() { return (_cpuFeatures & CPU_TSC) != 0; } 541 static bool supports_tsc() { return (_cpuFeatures & CPU_TSC) != 0; }
487 542
488 // Intel features 543 // Intel features
489 static bool is_intel_family_core() { return is_intel() && 544 static bool is_intel_family_core() { return is_intel() &&
490 extended_cpu_family() == CPU_FAMILY_INTEL_CORE; } 545 extended_cpu_family() == CPU_FAMILY_INTEL_CORE; }