| To: | "Kevin D. Kissell" <kevink@paralogos.com> |
|---|---|
| Subject: | Re: [Q] enabling FPU for vpe1 |
| From: | Deng-Cheng Zhu <dengcheng.zhu@gmail.com> |
| Date: | Wed, 4 Aug 2010 18:14:27 +0800 |
| Cc: | linux-mips@linux-mips.org |
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| In-reply-to: | <4C592027.8010902@paralogos.com> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <AANLkTinCjSTE7sYa7JdqwAEe-4nZJKAvVfg5q4YVVqC7@mail.gmail.com> <4C592027.8010902@paralogos.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
Thanks for looking into this. I did do that. But the CU1 bit of TC#1 (in VPE#1) can not be set by TC#0 or itself. Looks like VPE#1 is not seeing the FPU at all... Deng-Cheng 2010/8/4 Kevin D. Kissell <kevink@paralogos.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 >> >> > > |
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