According to related manuals, I see that Cortex-A7 is able to send 8-bits, 16-bits, 32-bits, and 64-bits exclusive access.
I'm wondering that if it's able to send a 128-bits exclusive access or not.
The Technical Reference Manual (TRM) lists the different kinds of transfers the processor can make, see here:
Cortex-A7 MPCore Technical Reference Manual: 7.3.2. ACE transfers