Constant AMD_L3_CACHE_INFO 

pub const AMD_L3_CACHE_INFO: CpuidValue<0x8000_0006, 0, EDX, AmdL3CacheInformation>;

Leaf/Function 0x8000_0006, EDX

[amd/vol3]: E.4.5 Function 8000_0006h—L2 Cache and TLB and L3 Cache Information.