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From: Jun Sun <jsun@mvista.com>
To: "Kevin D. Kissell" <kevink@mips.com>
Cc: carlson@sibyte.com, Matthew Dharm <mdharm@momenco.com>,
	linux-mips@oss.sgi.com
Subject: Re: Multiple processor support?
Date: Mon, 26 Mar 2001 11:20:35 -0800	[thread overview]
Message-ID: <3ABF9683.1D08617B@mvista.com> (raw)
In-Reply-To: 01b801c0b3fb$1770b740$0deca8c0@Ulysses

"Kevin D. Kissell" wrote:
> 
> (Software cache coherency) It is possible,
> but tricky, and at times unavoidably inefficient to build a
> software-coherent SMP system.  I have not heard of anyone
> doing so with MIPS/Linux.
>

How would it be possible?  Any reference to the previous implementations?

I imagine you would need at least some kind of atomic operation (like ll/sc)
working reliably (which itself may require cache coherency).  Also, any such
scheme should not require massive change in the programming.

I am very curious....

Jun

  parent reply	other threads:[~2001-03-26 19:25 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-03-23 22:53 Multiple processor support? Matthew Dharm
2001-03-23 22:58 ` Justin Carlson
2001-03-24  0:01   ` Matthew Dharm
2001-03-24  0:01     ` Matthew Dharm
2001-03-24  0:08     ` Justin Carlson
2001-03-24  0:08       ` Justin Carlson
2001-03-24  0:29       ` Keith M Wesolowski
2001-03-24  0:40       ` Kevin D. Kissell
2001-03-24  0:40         ` Kevin D. Kissell
2001-03-24  1:23         ` Ralf Baechle
2001-03-24  1:23           ` Ralf Baechle
2001-03-26 19:20         ` Jun Sun [this message]
2001-03-29  9:16           ` Kevin D. Kissell
2001-03-29  9:16             ` Kevin D. Kissell
2001-03-24  0:13     ` Joe George

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