Re: [MIPS] Enable support for the userlocal hardware register

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

On Fri, Jul 13, 2007 at 12:37:27AM +0900, Atsushi Nemoto wrote:

> On Mon, 09 Jul 2007 15:08:15 +0100, linux-mips@linux-mips.org wrote:
> > Which will cut down the cost of RDHWR $29 which is used to obtain the
> > TLS pointer and so far being emulated in software down to a single cycle
> > operation.
> 
> Since cpu_has_userlocal is used in a critical path (switch_to),
> overriding in each cpu-feature-overrides.h might be expected.

Every sper^Wcycle is holy, as Monthy Python would say.

  Ralf