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SubjectRe: [PATCH 1/6] MIPS: remove cpu_has_64bit_gp_regs and cpu_has_64bit_addresses
On Wed, Mar 25, 2020 at 10:24:46AM +0100, Fredrik Noring wrote:
> > > The (slightly outdated) patch series under review
> > > is available here:
> > >
> > >
> >
> > You don't happen to have a git tree available somewhere?
> is stable at v5.4,
> has more experimental stuff (also at v5.4 at the moment). There are some
> (work-in-progress) notes on the R5900 psABI, that may be of interest, here:

So from what I can tell this uses a 32-bit kernel and 32-bit userspace,
and sets both pu_has_64bit_gp_regs and cpu_has_64bit_addresses to 0.

Now if you ever wanted to make use of the 64-bit registeres it would
require quite some changes, which probably really should have a new
Kconfig option. In fact a lot of the workaround for the 64-bit
registeres that are in the code already should be keyed off such an
option rather than CONFIG_CPU_R5900.

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