From: Ralf Baechle <ralf@linux-mips.org>
To: "Kevin D. Kissell" <KevinK@mips.com>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>, linux-mips@linux-mips.org
Subject: Re: preempt safe fpu-emulator
Date: Thu, 28 Apr 2005 16:21:23 +0100 [thread overview]
Message-ID: <20050428152123.GH1276@linux-mips.org> (raw)
In-Reply-To: <002d01c54bfa$5b913f80$0deca8c0@Ulysses>
On Thu, Apr 28, 2005 at 06:58:28AM -0700, Kevin D. Kissell wrote:
> When I first integrated the Algorithmics emulator with the Linux kernel
> several years back, I tried doing something like this but ran into some
> problem that I cannot recall exactly - there may have been some case
> where the system expected threads to "inherit" FCSR changes. I agree
> that this is an obviously cleaner approach, but be careful.
The global variables definately won't fly anymore in preemptable and SMP
kernels. Or rather any attempt to get that to work would only make things
worse, so they had to go.
Ralf
next prev parent reply other threads:[~2005-04-28 15:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-27 5:36 preempt safe fpu-emulator Atsushi Nemoto
2005-04-27 5:46 ` Atsushi Nemoto
2005-04-27 10:49 ` New Forum for support of RB500 (MIPS board) John Tully
2005-04-28 13:41 ` preempt safe fpu-emulator Ralf Baechle
2005-04-28 13:58 ` Kevin D. Kissell
2005-04-28 13:58 ` Kevin D. Kissell
2005-04-28 15:21 ` Ralf Baechle [this message]
2005-04-28 15:25 ` Maciej W. Rozycki
2005-04-28 15:33 ` Ralf Baechle
2005-04-28 15:34 ` Ralf Baechle
2005-04-28 16:06 ` Kevin D. Kissell
2005-04-28 16:06 ` Kevin D. Kissell
2005-04-29 13:40 ` Atsushi Nemoto
2005-04-30 14:36 ` Atsushi Nemoto
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