diff options
Diffstat (limited to 'compiler-rt/lib/builtins')
| -rw-r--r-- | compiler-rt/lib/builtins/cpu_model/x86.c | 246 |
1 files changed, 130 insertions, 116 deletions
diff --git a/compiler-rt/lib/builtins/cpu_model/x86.c b/compiler-rt/lib/builtins/cpu_model/x86.c index d9ff116..c21b2ba 100644 --- a/compiler-rt/lib/builtins/cpu_model/x86.c +++ b/compiler-rt/lib/builtins/cpu_model/x86.c @@ -36,14 +36,14 @@ enum VendorSignatures { SIG_AMD = 0x68747541, // Auth }; -enum ProcessorVendors : unsigned int { +enum ProcessorVendors { VENDOR_INTEL = 1, VENDOR_AMD, VENDOR_OTHER, VENDOR_MAX }; -enum ProcessorTypes : unsigned int { +enum ProcessorTypes { INTEL_BONNELL = 1, INTEL_CORE2, INTEL_COREI7, @@ -235,6 +235,19 @@ enum ProcessorFeatures { CPU_FEATURE_MAX }; +#ifndef _WIN32 +__attribute__((visibility("hidden"))) +#endif +struct __processor_model { + unsigned int __cpu_vendor; + unsigned int __cpu_type; + unsigned int __cpu_subtype; + unsigned int __cpu_features[1]; +} __cpu_model = {0, 0, 0, {0}}; + +static_assert(sizeof(__cpu_model) == 16, + "Wrong size of __cpu_model will result in ABI break"); + // This code is copied from lib/Support/Host.cpp. // Changes to either file should be mirrored in the other. @@ -319,13 +332,17 @@ static void detectX86FamilyModel(unsigned EAX, unsigned *Family, #define testFeature(F) (Features[F / 32] & (1 << (F % 32))) != 0 -static const char *getIntelProcessorTypeAndSubtype( - unsigned Family, unsigned Model, const unsigned *Features, - enum ProcessorTypes *Type, enum ProcessorSubtypes *Subtype) { +static const char * +getIntelProcessorTypeAndSubtype(unsigned Family, unsigned Model, + const unsigned *Features, + struct __processor_model *CpuModel) { // We select CPU strings to match the code in Host.cpp, but we don't use them // in compiler-rt. const char *CPU = 0; + enum ProcessorTypes Type = CPU_TYPE_MAX; + enum ProcessorSubtypes Subtype = CPU_SUBTYPE_MAX; + switch (Family) { case 0x6: switch (Model) { @@ -337,7 +354,7 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x16: // Intel Celeron processor model 16h. All processors are // manufactured using the 65 nm process CPU = "core2"; - *Type = INTEL_CORE2; + Type = INTEL_CORE2; break; case 0x17: // Intel Core 2 Extreme processor, Intel Xeon processor, model // 17h. All processors are manufactured using the 45 nm process. @@ -346,7 +363,7 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x1d: // Intel Xeon processor MP. All processors are manufactured using // the 45 nm process. CPU = "penryn"; - *Type = INTEL_CORE2; + Type = INTEL_CORE2; break; case 0x1a: // Intel Core i7 processor and Intel Xeon processor. All // processors are manufactured using the 45 nm process. @@ -355,29 +372,29 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x1f: case 0x2e: // Nehalem EX CPU = "nehalem"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_NEHALEM; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_NEHALEM; break; case 0x25: // Intel Core i7, laptop version. case 0x2c: // Intel Core i7 processor and Intel Xeon processor. All // processors are manufactured using the 32 nm process. case 0x2f: // Westmere EX CPU = "westmere"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_WESTMERE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_WESTMERE; break; case 0x2a: // Intel Core i7 processor. All processors are manufactured // using the 32 nm process. case 0x2d: CPU = "sandybridge"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_SANDYBRIDGE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_SANDYBRIDGE; break; case 0x3a: case 0x3e: // Ivy Bridge EP CPU = "ivybridge"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_IVYBRIDGE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_IVYBRIDGE; break; // Haswell: @@ -386,8 +403,8 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x45: case 0x46: CPU = "haswell"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_HASWELL; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_HASWELL; break; // Broadwell: @@ -396,8 +413,8 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x4f: case 0x56: CPU = "broadwell"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_BROADWELL; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_BROADWELL; break; // Skylake: @@ -408,61 +425,61 @@ static const char *getIntelProcessorTypeAndSubtype( case 0xa5: // Comet Lake-H/S case 0xa6: // Comet Lake-U CPU = "skylake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_SKYLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_SKYLAKE; break; // Rocketlake: case 0xa7: CPU = "rocketlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ROCKETLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ROCKETLAKE; break; // Skylake Xeon: case 0x55: - *Type = INTEL_COREI7; + Type = INTEL_COREI7; if (testFeature(FEATURE_AVX512BF16)) { CPU = "cooperlake"; - *Subtype = INTEL_COREI7_COOPERLAKE; + Subtype = INTEL_COREI7_COOPERLAKE; } else if (testFeature(FEATURE_AVX512VNNI)) { CPU = "cascadelake"; - *Subtype = INTEL_COREI7_CASCADELAKE; + Subtype = INTEL_COREI7_CASCADELAKE; } else { CPU = "skylake-avx512"; - *Subtype = INTEL_COREI7_SKYLAKE_AVX512; + Subtype = INTEL_COREI7_SKYLAKE_AVX512; } break; // Cannonlake: case 0x66: CPU = "cannonlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_CANNONLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_CANNONLAKE; break; // Icelake: case 0x7d: case 0x7e: CPU = "icelake-client"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ICELAKE_CLIENT; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ICELAKE_CLIENT; break; // Tigerlake: case 0x8c: case 0x8d: CPU = "tigerlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_TIGERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_TIGERLAKE; break; // Alderlake: case 0x97: case 0x9a: CPU = "alderlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ALDERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ALDERLAKE; break; // Raptorlake: @@ -470,23 +487,23 @@ static const char *getIntelProcessorTypeAndSubtype( case 0xba: case 0xbf: CPU = "raptorlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ALDERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ALDERLAKE; break; // Meteorlake: case 0xaa: case 0xac: CPU = "meteorlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ALDERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ALDERLAKE; break; // Gracemont: case 0xbe: CPU = "gracemont"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ALDERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ALDERLAKE; break; // Arrowlake: @@ -494,72 +511,72 @@ static const char *getIntelProcessorTypeAndSubtype( // Arrowlake U: case 0xb5: CPU = "arrowlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ARROWLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ARROWLAKE; break; // Arrowlake S: case 0xc6: CPU = "arrowlake-s"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ARROWLAKE_S; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ARROWLAKE_S; break; // Lunarlake: case 0xbd: CPU = "lunarlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ARROWLAKE_S; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ARROWLAKE_S; break; // Pantherlake: case 0xcc: CPU = "pantherlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_PANTHERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_PANTHERLAKE; break; // Wildcatlake: case 0xd5: CPU = "wildcatlake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_PANTHERLAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_PANTHERLAKE; break; // Icelake Xeon: case 0x6a: case 0x6c: CPU = "icelake-server"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_ICELAKE_SERVER; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_ICELAKE_SERVER; break; // Emerald Rapids: case 0xcf: CPU = "emeraldrapids"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_SAPPHIRERAPIDS; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_SAPPHIRERAPIDS; break; // Sapphire Rapids: case 0x8f: CPU = "sapphirerapids"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_SAPPHIRERAPIDS; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_SAPPHIRERAPIDS; break; // Granite Rapids: case 0xad: CPU = "graniterapids"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_GRANITERAPIDS; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_GRANITERAPIDS; break; // Granite Rapids D: case 0xae: CPU = "graniterapids-d"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_GRANITERAPIDS_D; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_GRANITERAPIDS_D; break; case 0x1c: // Most 45 nm Intel Atom processors @@ -568,7 +585,7 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x35: // 32 nm Atom Midview case 0x36: // 32 nm Atom Midview CPU = "bonnell"; - *Type = INTEL_BONNELL; + Type = INTEL_BONNELL; break; // Atom Silvermont codes from the Intel software optimization guide. @@ -579,52 +596,52 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x5d: case 0x4c: // really airmont CPU = "silvermont"; - *Type = INTEL_SILVERMONT; + Type = INTEL_SILVERMONT; break; // Goldmont: case 0x5c: // Apollo Lake case 0x5f: // Denverton CPU = "goldmont"; - *Type = INTEL_GOLDMONT; + Type = INTEL_GOLDMONT; break; // "goldmont" case 0x7a: CPU = "goldmont-plus"; - *Type = INTEL_GOLDMONT_PLUS; + Type = INTEL_GOLDMONT_PLUS; break; case 0x86: case 0x8a: // Lakefield case 0x96: // Elkhart Lake case 0x9c: // Jasper Lake CPU = "tremont"; - *Type = INTEL_TREMONT; + Type = INTEL_TREMONT; break; // Sierraforest: case 0xaf: CPU = "sierraforest"; - *Type = INTEL_SIERRAFOREST; + Type = INTEL_SIERRAFOREST; break; // Grandridge: case 0xb6: CPU = "grandridge"; - *Type = INTEL_GRANDRIDGE; + Type = INTEL_GRANDRIDGE; break; // Clearwaterforest: case 0xdd: CPU = "clearwaterforest"; - *Type = INTEL_CLEARWATERFOREST; + Type = INTEL_CLEARWATERFOREST; break; case 0x57: CPU = "knl"; - *Type = INTEL_KNL; + Type = INTEL_KNL; break; case 0x85: CPU = "knm"; - *Type = INTEL_KNM; + Type = INTEL_KNM; break; default: // Unknown family 6 CPU. @@ -636,8 +653,8 @@ static const char *getIntelProcessorTypeAndSubtype( // Diamond Rapids: case 0x01: CPU = "diamondrapids"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_DIAMONDRAPIDS; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_DIAMONDRAPIDS; break; default: // Unknown family 19 CPU. @@ -649,8 +666,8 @@ static const char *getIntelProcessorTypeAndSubtype( case 0x1: case 0x3: CPU = "novalake"; - *Type = INTEL_COREI7; - *Subtype = INTEL_COREI7_NOVALAKE; + Type = INTEL_COREI7; + Subtype = INTEL_COREI7_NOVALAKE; break; default: // Unknown family 0x12 CPU. break; @@ -661,14 +678,23 @@ static const char *getIntelProcessorTypeAndSubtype( break; // Unknown. } + if (Type != CPU_TYPE_MAX) + CpuModel->__cpu_type = Type; + if (Subtype != CPU_SUBTYPE_MAX) + CpuModel->__cpu_subtype = Subtype; + return CPU; } -static const char *getAMDProcessorTypeAndSubtype( - unsigned Family, unsigned Model, const unsigned *Features, - enum ProcessorTypes *Type, enum ProcessorSubtypes *Subtype) { +static const char * +getAMDProcessorTypeAndSubtype(unsigned Family, unsigned Model, + const unsigned *Features, + struct __processor_model *CpuModel) { const char *CPU = 0; + enum ProcessorTypes Type = CPU_TYPE_MAX; + enum ProcessorSubtypes Subtype = CPU_SUBTYPE_MAX; + switch (Family) { case 4: CPU = "i486"; @@ -709,53 +735,53 @@ static const char *getAMDProcessorTypeAndSubtype( case 16: case 18: CPU = "amdfam10"; - *Type = AMDFAM10H; // "amdfam10" + Type = AMDFAM10H; // "amdfam10" switch (Model) { case 2: - *Subtype = AMDFAM10H_BARCELONA; + Subtype = AMDFAM10H_BARCELONA; break; case 4: - *Subtype = AMDFAM10H_SHANGHAI; + Subtype = AMDFAM10H_SHANGHAI; break; case 8: - *Subtype = AMDFAM10H_ISTANBUL; + Subtype = AMDFAM10H_ISTANBUL; break; } break; case 20: CPU = "btver1"; - *Type = AMD_BTVER1; + Type = AMD_BTVER1; break; case 21: CPU = "bdver1"; - *Type = AMDFAM15H; + Type = AMDFAM15H; if (Model >= 0x60 && Model <= 0x7f) { CPU = "bdver4"; - *Subtype = AMDFAM15H_BDVER4; + Subtype = AMDFAM15H_BDVER4; break; // 60h-7Fh: Excavator } if (Model >= 0x30 && Model <= 0x3f) { CPU = "bdver3"; - *Subtype = AMDFAM15H_BDVER3; + Subtype = AMDFAM15H_BDVER3; break; // 30h-3Fh: Steamroller } if ((Model >= 0x10 && Model <= 0x1f) || Model == 0x02) { CPU = "bdver2"; - *Subtype = AMDFAM15H_BDVER2; + Subtype = AMDFAM15H_BDVER2; break; // 02h, 10h-1Fh: Piledriver } if (Model <= 0x0f) { - *Subtype = AMDFAM15H_BDVER1; + Subtype = AMDFAM15H_BDVER1; break; // 00h-0Fh: Bulldozer } break; case 22: CPU = "btver2"; - *Type = AMD_BTVER2; + Type = AMD_BTVER2; break; case 23: CPU = "znver1"; - *Type = AMDFAM17H; + Type = AMDFAM17H; if ((Model >= 0x30 && Model <= 0x3f) || (Model == 0x47) || (Model >= 0x60 && Model <= 0x67) || (Model >= 0x68 && Model <= 0x6f) || (Model >= 0x70 && Model <= 0x7f) || (Model >= 0x84 && Model <= 0x87) || @@ -771,20 +797,20 @@ static const char *getAMDProcessorTypeAndSubtype( // Family 17h Models 98h-9Fh (Mero) Zen 2 // Family 17h Models A0h-AFh (Mendocino) Zen 2 CPU = "znver2"; - *Subtype = AMDFAM17H_ZNVER2; + Subtype = AMDFAM17H_ZNVER2; break; } if ((Model >= 0x10 && Model <= 0x1f) || (Model >= 0x20 && Model <= 0x2f)) { // Family 17h Models 10h-1Fh (Raven1) Zen // Family 17h Models 10h-1Fh (Picasso) Zen+ // Family 17h Models 20h-2Fh (Raven2 x86) Zen - *Subtype = AMDFAM17H_ZNVER1; + Subtype = AMDFAM17H_ZNVER1; break; } break; case 25: CPU = "znver3"; - *Type = AMDFAM19H; + Type = AMDFAM19H; if (Model <= 0x0f || (Model >= 0x20 && Model <= 0x2f) || (Model >= 0x30 && Model <= 0x3f) || (Model >= 0x40 && Model <= 0x4f) || (Model >= 0x50 && Model <= 0x5f)) { @@ -793,7 +819,7 @@ static const char *getAMDProcessorTypeAndSubtype( // Family 19h Models 30h-3Fh (Badami) Zen 3 // Family 19h Models 40h-4Fh (Rembrandt) Zen 3+ // Family 19h Models 50h-5Fh (Cezanne) Zen 3 - *Subtype = AMDFAM19H_ZNVER3; + Subtype = AMDFAM19H_ZNVER3; break; } if ((Model >= 0x10 && Model <= 0x1f) || (Model >= 0x60 && Model <= 0x6f) || @@ -805,13 +831,13 @@ static const char *getAMDProcessorTypeAndSubtype( // Family 19h Models 78h-7Fh (Phoenix 2, Hawkpoint2) Zen 4 // Family 19h Models A0h-AFh (Stones-Dense) Zen 4 CPU = "znver4"; - *Subtype = AMDFAM19H_ZNVER4; + Subtype = AMDFAM19H_ZNVER4; break; // "znver4" } break; // family 19h case 26: CPU = "znver5"; - *Type = AMDFAM1AH; + Type = AMDFAM1AH; if (Model <= 0x77) { // Models 00h-0Fh (Breithorn). // Models 10h-1Fh (Breithorn-Dense). @@ -823,7 +849,7 @@ static const char *getAMDProcessorTypeAndSubtype( // Models 60h-6Fh (Krackan1). // Models 70h-77h (Sarlak). CPU = "znver5"; - *Subtype = AMDFAM1AH_ZNVER5; + Subtype = AMDFAM1AH_ZNVER5; break; // "znver5" } break; @@ -831,6 +857,11 @@ static const char *getAMDProcessorTypeAndSubtype( break; // Unknown AMD CPU. } + if (Type != CPU_TYPE_MAX) + CpuModel->__cpu_type = Type; + if (Subtype != CPU_SUBTYPE_MAX) + CpuModel->__cpu_subtype = Subtype; + return CPU; } @@ -1155,19 +1186,6 @@ int __cpu_indicator_init(void) CONSTRUCTOR_ATTRIBUTE; #ifndef _WIN32 __attribute__((visibility("hidden"))) #endif -struct __processor_model { - unsigned int __cpu_vendor; - enum ProcessorTypes __cpu_type; - enum ProcessorSubtypes __cpu_subtype; - unsigned int __cpu_features[1]; -} __cpu_model = {0, 0, 0, {0}}; - -static_assert(sizeof(__cpu_model) == 16, - "Wrong size of __cpu_model will result in ABI break"); - -#ifndef _WIN32 -__attribute__((visibility("hidden"))) -#endif unsigned __cpu_features2[(CPU_FEATURE_MAX - 1) / 32]; // A constructor function that is sets __cpu_model and __cpu_features2 with @@ -1207,15 +1225,11 @@ int CONSTRUCTOR_ATTRIBUTE __cpu_indicator_init(void) { if (Vendor == SIG_INTEL) { // Get CPU type. - getIntelProcessorTypeAndSubtype(Family, Model, &Features[0], - &(__cpu_model.__cpu_type), - &(__cpu_model.__cpu_subtype)); + getIntelProcessorTypeAndSubtype(Family, Model, &Features[0], &__cpu_model); __cpu_model.__cpu_vendor = VENDOR_INTEL; } else if (Vendor == SIG_AMD) { // Get CPU type. - getAMDProcessorTypeAndSubtype(Family, Model, &Features[0], - &(__cpu_model.__cpu_type), - &(__cpu_model.__cpu_subtype)); + getAMDProcessorTypeAndSubtype(Family, Model, &Features[0], &__cpu_model); __cpu_model.__cpu_vendor = VENDOR_AMD; } else __cpu_model.__cpu_vendor = VENDOR_OTHER; |