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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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12
headers/private/shared/cpu_type.h
View File

@ -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);

36
src/tools/cpuidtool.c
View File

@ -7,7 +7,7 @@
*/
/*
* Pass a standard CPUID in hex, and get out a CPUID for OS.h
* Pass a standard CPUID in hex, and get out a CPUID for cpu_type.h
*/
@ -71,41 +71,23 @@ xtoi(const char* xs, unsigned int* result)
int
main(int argc, char *argv[])
{
if (argc != 3) {
if (argc != 2) {
printf("Provide the cpuid in hex, and you will get how we id it\n");
printf("usage: cpuidhaiku <AMD|INTEL> <cpuid_hex>\n");
printf("usage: cpuidhaiku <cpuid_hex>\n");
return 1;
}
unsigned int cpuid = 0;
xtoi(argv[2], &cpuid);
xtoi(argv[1], &cpuid);
printf("cpuid: 0x%X\n", cpuid);
unsigned int extFam = (cpuid & EXT_FAMILY_MASK) >> 20;
unsigned int extMod = (cpuid & EXT_MODEL_MASK) >> 16;
unsigned int family = (cpuid & FAMILY_MASK) >> 8;
unsigned int model = (cpuid & MODEL_MASK) >> 4;
unsigned int stepping = (cpuid & STEPPING_MASK);
int family = ((cpuid >> 8) & 0xf) | ((cpuid >> 16) & 0xff0);
int model = ((cpuid >> 4) & 0xf) | ((cpuid >> 12) & 0xf0);
int stepping = cpuid & 0xf;
unsigned int cpuidHaiku;
if (strncmp(argv[1], "AMD", 3) == 0) {
if (family == 0xF) {
cpuidHaiku = (extFam << 20) + (extMod << 16)
+ (family << 4) + model;
} else
cpuidHaiku = (family << 4) + model;
cpuidHaiku += 0x1100; // AMD vendor id
} else if (strncmp(argv[1], "INTEL", 5) == 0) {
cpuidHaiku = (extFam << 20) + (extMod << 16)
+ (family << 4) + model;
cpuidHaiku += 0x1000; // Intel vendor id
} else {
printf("Vendor should be AMD or INTEL\n");
return 1;
}
printf("Haiku CPUID: 0x%lx\n", cpuidHaiku);
printf("Haiku CPUID: Family: 0x%x, Model: 0x%x, Stepping: 0x%x\n", family,
model, stepping);
return 0;
}