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Re: simulate_ll and simulate_sc move to do_cpu from do_ri

To: Ralf Baechle <>
Subject: Re: simulate_ll and simulate_sc move to do_cpu from do_ri
From: Yoichi Yuasa <>
Date: Mon, 21 Apr 2003 19:00:45 +0900
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
Hi Ralf,

On Fri, 18 Apr 2003 20:45:53 +0200
Ralf Baechle <> wrote:

> On Fri, Apr 18, 2003 at 06:17:48PM +0900, Yoichi Yuasa wrote:
> > Why did you move simulate_ll and simulate_sc to do_cpu from do_ri?
> > NEC VR4100 series need simulate_ll and simulate_sc in do_ri.
> As the CVS comment said ll is using the opcode for lwc0 and sc the opcode
> for swc0 so the expected behaviour of an attempt to execute ll or sc on a
> ll/sc-less processor is throwing a coprocessor unusable exception, not
> reserved exception.
> So if the VR4100 series is indeed throwing RI exceptions then this processor
> is plain broken.  Will fix but not without cursing into NEC's direction.
> Grr...

In addition, the attached patches are still required for NEC VR4100 series.
Please apply these patches.


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Attachment: simulate_llsc-v25.diff
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