On Mon, Jul 31, 2017 at 07:10:15PM +1000, Michael Ellerman wrote: > And ___PPC_RA() is not quite right. The L field is only 2 bits wide, not > the 5 that ___PPC_RA() allows. > > We don't have a __PPC_L() macro, because L fields vary in size and > location. So I think you're best of open coding it, eg: > > +#define PPC_DARN(t, l) stringify_in_c(.long PPC_INST_DARN | \ > + __PPC_RT(t) | \ > + (((l) & 0x3) << 16))
It would be better if you could do a compile-time error if the L value is out of range. Hrm, nothing else does such checking either? Segher
