diff options
Diffstat (limited to 'src/common/x64/cpu_detect.cpp')
| -rw-r--r-- | src/common/x64/cpu_detect.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/common/x64/cpu_detect.cpp b/src/common/x64/cpu_detect.cpp index c9349a6b4..d767c544c 100644 --- a/src/common/x64/cpu_detect.cpp +++ b/src/common/x64/cpu_detect.cpp @@ -62,6 +62,17 @@ static CPUCaps Detect() { std::memcpy(&caps.brand_string[0], &cpu_id[1], sizeof(int)); std::memcpy(&caps.brand_string[4], &cpu_id[3], sizeof(int)); std::memcpy(&caps.brand_string[8], &cpu_id[2], sizeof(int)); + if (cpu_id[1] == 0x756e6547 && cpu_id[2] == 0x6c65746e && cpu_id[3] == 0x49656e69) + caps.manufacturer = Manufacturer::Intel; + else if (cpu_id[1] == 0x68747541 && cpu_id[2] == 0x444d4163 && cpu_id[3] == 0x69746e65) + caps.manufacturer = Manufacturer::AMD; + else if (cpu_id[1] == 0x6f677948 && cpu_id[2] == 0x656e6975 && cpu_id[3] == 0x6e65476e) + caps.manufacturer = Manufacturer::Hygon; + else + caps.manufacturer = Manufacturer::Unknown; + + u32 family = {}; + u32 model = {}; __cpuid(cpu_id, 0x80000000); @@ -73,6 +84,14 @@ static CPUCaps Detect() { // Detect family and other miscellaneous features if (max_std_fn >= 1) { __cpuid(cpu_id, 0x00000001); + family = (cpu_id[0] >> 8) & 0xf; + model = (cpu_id[0] >> 4) & 0xf; + if (family == 0xf) { + family += (cpu_id[0] >> 20) & 0xff; + } + if (family >= 6) { + model += ((cpu_id[0] >> 16) & 0xf) << 4; + } if ((cpu_id[3] >> 25) & 1) caps.sse = true; @@ -130,6 +149,20 @@ static CPUCaps Detect() { caps.fma4 = true; } + if (max_ex_fn >= 0x80000007) { + __cpuid(cpu_id, 0x80000007); + if (cpu_id[3] & (1 << 8)) { + caps.invariant_tsc = true; + } + } + + if (max_std_fn >= 0x16) { + __cpuid(cpu_id, 0x16); + caps.base_frequency = cpu_id[0]; + caps.max_frequency = cpu_id[1]; + caps.bus_frequency = cpu_id[2]; + } + return caps; } |