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Re: User applications

To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Subject: Re: User applications
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Mon, 8 Jan 2001 15:42:32 -0200
Cc: Carsten Langgaard <carstenl@mips.com>, "Kevin D. Kissell" <kevink@mips.com>, linux-mips@oss.sgi.com, Michael Shmulevich <michaels@jungo.com>
In-reply-to: <Pine.GSO.3.96.1010108173437.23234L-100000@delta.ds2.pg.gda.pl>; from macro@ds2.pg.gda.pl on Mon, Jan 08, 2001 at 05:40:23PM +0100
References: <3A59E978.873182CB@mips.com> <Pine.GSO.3.96.1010108173437.23234L-100000@delta.ds2.pg.gda.pl>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.2.5i
On Mon, Jan 08, 2001 at 05:40:23PM +0100, Maciej W. Rozycki wrote:

> > What we need is a mechanism to partial invalidate the I-cache and a 
> > mechanism
> > to write-back and/or invalidate the D-cache.
> 
>  What's wrong with the already mentioned cachectl?
> 
> $ mipsel-linux-objdump -T /usr/mipsel-linux/lib/libc-2.2.so | grep cachectl
> 00000000600ca0a0  w   DF *ABS*  0000000000000000  GLIBC_2.0   cachectl
> $ ls /usr/mipsel-linux/include/sys/cachectl.h
> /usr/mipsel-linux/include/sys/cachectl.h

cachectl(2) is a syscall that is manipulates the cachability of a memory
area.  And not yet implemented ...

  Ralf

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