Re: More than 512MB of memory

[Ralf Baechle <ralf@linux-mips.org>]

On Wed, Feb 09, 2005 at 04:41:33PM +0100, Rojhalat Ibrahim wrote:

> Those messages actually go away when I do not
> define cpu_has_64bit_gp_regs, which is strange
> because the RM9000 definitely has 64bit gp regs.
> Any ideas?

cpu_has_64bit_gp_regs is meant to indicate "CPU has 64-bit registers and
it's actually safe to use them".  This is why it's defined as 0 for all
32-bit kernels where an interrupt would corrupt the upper 32-bits which
we don't save during any kind of exception.

  Ralf