We use a global ringbuffer size and block size for all targets and
at least for 5XX preemption we need to know the value the RB_CNTL
in several locations so it makes sense to caculate it once and use
it everywhere.
The only monkey wrench is that we need to disable the RPTR shadow
for A430 targets
We use a global ringbuffer size and block size for all targets and
at least for 5XX preemption we need to know the value the RB_CNTL
in several locations so it makes sense to caculate it once and use
it everywhere.
The only monkey wrench is that we need to disable the RPTR shadow
for A430 targets
