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[PATCH] new fpu code

Subject: [PATCH] new fpu code
From: Jun Sun <>
Date: Mon, 28 Oct 2002 15:23:25 -0800
Original-recipient: rfc822;
User-agent: Mutt/1.2.5i
I finally pull myself together and create a clean FPU/SMP patch.  See
the attachment.

After much discussion and experiments, it is clear approach 2) in my
original proposal is the winner.  In other words:

. we save the FPU context if process used FPU in the last run
. we restore FPU on next time it uses FPU again

On doing this I also cleaned up a couple of other FPU related places.

This patch only changes linux 2.4 for 32bit MIPS.  64bit MIPS is already
using a similar algorithm.  I will extend the patch to 2.5 and 64bit
if there are no further issues.


Description: Text document

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