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Re: [PATCH 1/2][MIPS] replace c0_compare acknowledge by c0_timer_ack()

To: Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH 1/2][MIPS] replace c0_compare acknowledge by c0_timer_ack()
From: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Date: Tue, 18 Mar 2008 13:47:20 +0900
Cc: yoichi_yuasa@tripeaks.co.jp, linux-mips <linux-mips@linux-mips.org>
In-reply-to: <20080317161635.GA25549@linux-mips.org>
Organization: TriPeaks Corporation
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20080317234740.705a8a34.yoichi_yuasa@tripeaks.co.jp> <20080317161635.GA25549@linux-mips.org>
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Hi Ralf,

On Mon, 17 Mar 2008 16:16:35 +0000
Ralf Baechle <ralf@linux-mips.org> wrote:

> On Mon, Mar 17, 2008 at 11:47:40PM +0900, Yoichi Yuasa wrote:
> 
> > VR41xx, CP0 hazard is necessary between read_c0_count() and 
> > write_c0_compare().
> 
> Interesting.  I wonder why you need this patch but nobody else?

Three NOP are necessary on the TB0287(VR4131 board).

Yoichi

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