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OS.h: Add AMD Ryzen CPU name identification.

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* Update cpuidtool.c to new post-smp rework name
  calculation
This commit is contained in:
Alexander von Gluck IV
2017-03-12 14:46:02 -05:00
parent 7fe3746703
commit 54066ddbb7
2 changed files with 20 additions and 28 deletions
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headers/private/shared/cpu_type.h
+11 -1
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@@ -255,6 +255,15 @@ get_cpu_model_string(enum cpu_platform platform, enum cpu_vendor cpuVendor,
if (platform != B_CPU_x86 && platform != B_CPU_x86_64)
return NULL;
// XXX: This *really* isn't accurate. There is differing math
// based on the CPU vendor.. Don't use these numbers anywhere
// except "fast and dumb" identification of processor names.
//
// see cpuidtool.c to decode cpuid signatures (sysinfo) into a
// value for this function.
//
// sysinfo has code in it which obtains the proper fam/mod/step ids
uint16 family = ((cpuModel >> 8) & 0xf) | ((cpuModel >> 16) & 0xff0);
uint16 model = ((cpuModel >> 4) & 0xf) | ((cpuModel >> 12) & 0xf0);
uint8 stepping = cpuModel & 0xf;
@@ -315,7 +324,8 @@ get_cpu_model_string(enum cpu_platform platform, enum cpu_vendor cpuVendor,
return "FX-Series";
if (model == 0x10 || model == 0x13)
return "A-Series";
}
} else if (family == 0x8f)
return "Ryzen 7"
// Fallback to manual parsing of the model string
get_cpuid_model_string(cpuidName);