archive/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-07-12 01:38:37 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

Improved Zen chip detection

Browse source
This commit is contained in:
kd-11 2020-12-09 21:29:48 +03:00 • committed by kd-11
parent 0e278d2299
commit cbe0000d23
3 changed files with 166 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

43
rpcs3/util/sysinfo.cpp
View file

@ -417,3 +417,46 @@ u32 utils::get_thread_count()
return ::sysconf(_SC_NPROCESSORS_ONLN);
#endif
}
u32 utils::get_cpu_family()
{
static const u32 g_value = []()
{
const u32 reg_value = get_cpuid(0x00000001, 0)[0]; // Processor feature info
const u32 base_value = (reg_value >> 8) & 0xF;
if (base_value == 0xF) [[likely]]
{
const u32 extended_value = (reg_value >> 20) & 0xFF;
return base_value + extended_value;
}
else
{
return base_value;
}
}();
return g_value;
}
u32 utils::get_cpu_model()
{
static const u32 g_value = []()
{
const u32 reg_value = get_cpuid(0x00000001, 0)[0]; // Processor feature info
const u32 base_value = (reg_value >> 4) & 0xF;
if (const auto base_family_id = (reg_value >> 8) & 0xF;
base_family_id == 0x6 || base_family_id == 0xF) [[likely]]
{
const u32 extended_value = (reg_value >> 16) & 0xF;
return base_value + (extended_value << 4);
}
else
{
return base_value;
}
}();
return g_value;
}