Linux MIPS Architecture development
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From: "Kevin D. Kissell" <kevink@paralogos.com>
To: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: [Q] enabling FPU for vpe1
Date: Wed, 04 Aug 2010 01:09:11 -0700	[thread overview]
Message-ID: <4C592027.8010902@paralogos.com> (raw)
In-Reply-To: <AANLkTinCjSTE7sYa7JdqwAEe-4nZJKAvVfg5q4YVVqC7@mail.gmail.com>

Check the MIPS MT spec.  If I recall correctly, it's possible to enable
access to the FPU by either VPE by setting the right bits while the
processor is in the MT configuration mode.

Deng-Cheng Zhu wrote:
> Hi,
>
>
> I'm working on a 34Kf CPU. I understand that only one TC can use the
> FPU at any given time.
>
> My question is: If a TC is attached to the 2nd VPE (i.e. VPE1), can I
> enable FPU for it?
>
> I experimented on this, but failed to do it. Am I missing something?
>
>
> Thanks
>
> Deng-Cheng
>
>   

  reply	other threads:[~2010-08-04  8:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-04  7:02 [Q] enabling FPU for vpe1 Deng-Cheng Zhu
2010-08-04  8:09 ` Kevin D. Kissell [this message]
2010-08-04 10:14   ` Deng-Cheng Zhu
2010-08-04 15:26     ` Kevin D. Kissell
2010-08-05  1:58       ` Deng-Cheng Zhu

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