Expand description

Cache Type field 6.

Indicates the type of cache that is implemented and can be managed using the architected cache maintenance instructions that operate by set/way at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.

All values other than the defined ones are considered reserved.

If software reads the Cache Type fields from [CLIDR_EL1::Ctype1] upwards, once it has seen a value of 000, no caches that can be managed using the architected cache maintenance instructions that operate by set/way exist at further-out levels of the hierarchy. So, for example, if Ctype3 is the first Cache Type field with a value of 000, the values of Ctype4 to Ctype7 must be ignored.

Enums

Cache Type field 6.

Constants

Data cache only.
Instruction cache only.
No cache.
Separate instruction and data caches.
Unified cache.