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Re: [PATCH 2.6] tlbwr hazard for NEC VR4100

To: Thiemo Seufer <>
Subject: Re: [PATCH 2.6] tlbwr hazard for NEC VR4100
From: "Maciej W. Rozycki" <>
Date: Thu, 2 Dec 2004 00:24:30 +0000 (GMT)
Cc: Yoichi Yuasa <>, Ralf Baechle <>, linux-mips <>
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
On Thu, 2 Dec 2004, Thiemo Seufer wrote:

> If 64bit kernels are ever relevant for VR41xx, you might want to use
> the same branch trick as it is used for R4[04]00. IIRC it reduced the
> handler size from 34 to 30 instructions, saving another branch.

 Isn't that based on specific properties of the R4[04]00 pipeline?  It may
still work for the VR41xx, but you can't take it for granted, so it should
be double-checked.  Given the conditions it's probably worth the hassle,


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