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Re: [PATCH]: Linux for Baget/MIPS (r3k & VME box)

To: linux-mips@fnet.fr
Subject: Re: [PATCH]: Linux for Baget/MIPS (r3k & VME box)
From: Dominic Sweetman <dom@algor.co.uk>
Date: Fri, 21 Aug 1998 11:09:37 +0100 (GMT/BST)
In-reply-to: <Pine.SV4.3.91.980821132827.9650B-100000@mech>
References: <199808210832.JAA00304@gladsmuir.algor.co.uk> <Pine.SV4.3.91.980821132827.9650B-100000@mech>
Gleb O. Rajko (rajko@mech.math.msu.su) writes:

> Consider the following scenario. A region (physical page) is swapped (on a 
> backing store), immediately filled by new data, new virtual page is 
> mapped to this region. There is a non-zero probability that old data 
> still lives in I-cache...  

Cache management is needed when you do DMA or the CPU writes
instructions.  But in this case the need for the invalidation is quite
unconnected with the re-mapping.

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