Hi Andreas,
On Wed, May 11, 2022 at 1:43 PM Andreas Schwab <schwab@xxxxxxxxxxxxxx> wrote:
On Mai 11 2022, Geert Uytterhoeven wrote:
Drop the dependency on MMU, as the code should work fine on 68020 and up
without MMU (which are not yet supported by Linux, though).
Add dependencies on M68K_CLASSIC (to rule out Coldfire) and FPU (to rule
out 68xxx below 68020).
Depending on FPU looks strange, since that is supposed to be an FPU
emulation, for CPUs that _lack_ an FPU (ie. 680[23]0 without the
6888[12], or 68LC0[46]0).
I picked FPU because it is selected by all of M680[2346]0.
Upon closer look, both the hard FPU and soft FPU code are protected
by CONFIG_FPU, so the latter looks like the right symbol.
The FPU emu code also relies on the CPU trapping on the proper
instructions, which I believe you need a 68020+ for, too?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
