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How to select MMU-401 TLB description format?

ocean over 10 years ago

Hi experts,

MMU-401 TLB support for the following:

— ARMv7 4KB, 2MB, and 1GB page sizes.

— ARMv8 64KB and 512MB page sizes.

In TRM, there is a register bit about PAGESIZE, 0:4KB, 1:64KB. So, I think user can select the TLB description format by this bit, that is, user must use 4KB,2MB,1GB, when selected PAGESIZE=4KB, otherwise, user must use 64KB,512MB.

Is my understanding correct? If no, how do MMU-401 to distingguish the 4KB and 64KB TLB format?

Thanks.