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Date: Sun, 2 Jan 2011 13:09:53 +0530
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From: "Jayachandran C." <c.jayachandran@gmail.com>
To: Robert Millan <rmh@debian.org>
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Cc: freebsd-mips@freebsd.org
Subject: Re: [PATCH] Retrieval of TLS pointer via RDHWR
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On Fri, Dec 31, 2010 at 8:36 PM, Robert Millan <rmh@debian.org> wrote:
> 2010/12/28 Warner Losh <imp@bsdimp.com>:
>> I reviewed the patch, and I liked it. =A0Couldn't find anything wrong wi=
th it
>> when I first looked at it. =A0Would be nice if things were more flexible=
, but
>> since generalizing from a sample size of one can be hard, I totally agre=
e.
>
> Great. =A0So will someone commit this? :-)

I will look at committing this.

BTW, The netlogic(RMI) contributed code had a different implementation
for this. The User Reserved Instruction exception had a fast path for
RDHWR which used k0/k1 and returned the value without taking the full
trap.   I hadn't looked at adding that either (mostly because I did
not see an immediate requirement).

Another emulation missing in the kernel is for floating point...

Regards,
JC.