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Re: cacheflush system call-MIPS

To: peter fuerst <>
Subject: Re: cacheflush system call-MIPS
From: Ralf Baechle <>
Date: Fri, 13 Feb 2009 23:56:03 +0000
Cc: naresh kamboju <>,
In-reply-to: <Pine.LNX.4.58.0902140002180.408@Indigo2.Peter>
Original-recipient: rfc822;
References: <> <> <Pine.LNX.4.58.0902140002180.408@Indigo2.Peter>
User-agent: Mutt/1.5.18 (2008-05-17)
On Sat, Feb 14, 2009 at 12:50:46AM +0100, peter fuerst wrote:

> there is one more good reason to ... : the Impact Xserver needs to do
> a cacheflush(a,w,DCACHE) as part of the refresh-sequence.
> And hence requires a sys_cacheflush, let's say, more conforming to the
> man-page (or some disgusting new ioctl in the Impact kernel-driver to
> do an equivalent operation ;-)

Why does it need that flush?


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