Subject: Re: Floating point in the kernel
To: None <abs@anim.dreamworks.com>
From: Ken Nakata <kenn@synap.ne.jp>
List: tech-kern
Date: 09/19/1998 10:54:01
On Fri, 18 Sep 1998 17:52:14 -0700 (PDT), David Brownlee wrote:
>
> On Sat, 19 Sep 1998, Ken Nakata wrote:
> >
> > Even if so, it does not scale *at all*. So, in Linux or even FreeBSD,
> > maybe, but I wouldn't want an ugly hack like this in NetBSD!
> >
> If its in an LKM for a DSP chip then I dont see a real problem
> a) It doesn't need to scale - just work for that DSP chip.
That's not what I meant. If we are going to allow this particular
device driver to use FPU in kernel, why not another? I mean, what if
someone else wants to use FPU in his XXX driver for whatever reason?
That's what I meant by "not scale". IOW, the proposed "solution" does
not scale to multiple instances of such FPU-requiring drivers.
> b) It doesn't impact any other part of the kernel source.
AS LONG AS there's no other driver which wants to use FPU.
I think the idea of letting a device driver use FPU since there's
currently no other such thing just stinks.
Ken