The technical spec for ARM Cortex A-75 claims that it supports a full implementation of ARMv8.2-A. The documents I have been able to reference only point to ARMv8A. Specifically I'm looking for what ARMv8.2-A brings to the SIMD table other than fp16 arithmetic. In particular does it support SVE, including predicate registers?
Implementation of v8.2 mandatory architectural features + Implementation of v8.2 architectural/additional requirements = A compliant implementation of v8.2 architecture.
Details inside "A1.7.4 The ARMv8.2 architecture extension" of the arch. manual.
SVE is an optional extension. Its support is advertised within the ID_AA64PFR0_EL1 register. SVE has its own supplementary document "ARM DDI 0584".
Edit: On a75, SVE isn't supported.