| ␉uint64_t␉msr;␊ |
| ␉uint8_t␉␉maxcoef = 0, maxdiv = 0, currcoef = 0, currdiv = 0;␊ |
| uint32_t␉reg[4];␊ |
| uint32_t cores_per_package;␊ |
| uint32_t logical_per_package; ␊ |
| uint32_t cores_per_package = 0;␊ |
| uint32_t logical_per_package = 0; ␊ |
| ␊ |
| ␉do_cpuid(0, reg);␊ |
| p->CPU.Vendor␉␉= reg[ebx];␊ |
| p->CPU.cpuid_max_basic = reg[eax];␊ |
| ␊ |
| ␉␊ |
| #ifndef AMD_SUPPORT␊ |
| do_cpuid2(0x00000004, 0, reg);␊ |
| cores_per_package␉␉= bitfield(reg[eax], 31, 26) + 1;␊ |
| ␊ |
| #endif␊ |
| ␉␊ |
| /* get extended cpuid results */␊ |
| ␉do_cpuid(0x80000000, reg);␊ |
| ␉p->CPU.cpuid_max_ext = reg[eax];␊ |
| ␉p->CPU.cpuid_max_ext = reg[eax]; ␊ |
| ␊ |
| ␊ |
| ␉/* Begin of Copyright: from Apple's XNU cpuid.c */␊ |
| ␉␊ |
| ␉/* get brand string (if supported) */␊ |
|
| ␉␉logical_per_package =␊ |
| bitfield(reg[ebx], 23, 16);␊ |
| ␉else␊ |
| ␉␉logical_per_package = 1;␉␊ |
| ␊ |
| if (p->CPU.cpuid_max_ext >= 0x80000001)␊ |
| ␉␉logical_per_package = 1;␊ |
| ␉␊ |
| ␉if (p->CPU.cpuid_max_ext >= 0x80000001)␊ |
| ␉{␊ |
| ␉␉do_cpuid(0x80000001, reg);␊ |
| ␉␉p->CPU.ExtFeatures =␊ |
| quad(reg[ecx], reg[edx]);␊ |
| ␉␉␊ |
| ␉}␊ |
| ␊ |
| ␉␊ |
| ␉if (p->CPU.cpuid_max_ext >= 0x80000007)␊ |
| ␉{␊ |
| ␉␉do_cpuid(0x80000007, reg); ␊ |
|
| #endif␊ |
| ␉} ␊ |
| ␉␊ |
| #ifdef AMD_SUPPORT␊ |
| ␉if (p->CPU.cpuid_max_ext >= 0x80000008)␊ |
| ␉{␊ |
| ␉␉if (p->CPU.Features & CPUID_FEATURE_HTT) ␊ |
| ␉␉{␊ |
| ␉␉␉do_cpuid(0x80000008, reg);␊ |
| ␉␉␉cores_per_package␉␉= bitfield(reg[ecx], 7 , 0) + 1; // NC + 1␊ |
| ␉␉}␊ |
| ␉}␉␉␊ |
| #endif␊ |
| ␉␊ |
| if (p->CPU.cpuid_max_basic >= 0x5) { ␊ |
| ␉␉/*␊ |
| ␉␉ * Extract the Monitor/Mwait Leaf info:␊ |
|
| #endif␊ |
| if (p->CPU.NoCores == 0)␊ |
| ␉{␊ |
| #ifdef AMD_SUPPORT␉␉␊ |
| ␉␉if (!cores_per_package) {␊ |
| ␉␉␉//legacy method␊ |
| ␉␉␉if ((p->CPU.ExtFeatures & _HBit(1)/* CmpLegacy */) && ( p->CPU.Features & CPUID_FEATURE_HTT) )␊ |
| ␉␉␉␉cores_per_package = logical_per_package; ␊ |
| ␉␉␉else ␊ |
| ␉␉␉␉cores_per_package = 1;␊ |
| ␉␉}␉␉␊ |
| #endif␊ |
| ␉␉p->CPU.NoThreads = logical_per_package;␊ |
| ␉␉p->CPU.NoCores = cores_per_package ? cores_per_package : 1 ;␊ |
| ␉}␊ |
|
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉}␉␊ |
| ␉}␊ |
| ␉␊ |
| ␉// NOTE: This is not the approved method,␊ |
| ␉// the method provided by AMD is: ␊ |
| ␉// if ((PowerNow == enabled (p->CPU.cpuid_max_ext >= 0x80000007)) && (StartupFID(??) != MaxFID(??))) then "mobile processor present"␊ |
| ␉␊ |
| ␉if (strstr(p->CPU.BrandString, "obile")) ␊ |
| ␉␉p->CPU.isMobile = true;␊ |
| ␉else ␊ |
| ␉␉p->CPU.isMobile = false;␊ |
| ␉␊ |
| ␉DBG("%s platform detected.\n", p->CPU.isMobile?"Mobile":"Desktop");␊ |
| #else␊ |
| if ((p->CPU.Vendor == 0x756E6547 /* Intel */) && ␊ |
| ␉␉((p->CPU.Family == 0x06) || ␊ |
|
| ␉␉␉␉p->CPU.isMobile = (rdmsr64(0x17) & (1 << 28));␊ |
| ␉␉␉␉break;␊ |
| ␉␉}␊ |
| // TODO: this part of code seems to work very well for the intel platforms, need to find the equivalent for AMD␊ |
| ␉␉DBG("%s platform found.\n", p->CPU.isMobile?"Mobile":"Desktop");␊ |
| ␊ |
| ␉␉DBG("%s platform detected.\n", p->CPU.isMobile?"Mobile":"Desktop");␊ |
| ␉}␊ |
| #endif␊ |
| ␉if (!cpuFrequency) cpuFrequency = tscFrequency;␊ |
