From: Jun Sun <jsun@mvista.com>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: Ralf Baechle <ralf@uni-koblenz.de>,
linux-mips@fnet.fr, linux-mips@oss.sgi.com
Subject: Re: [patch] linux: New style IRQs for DECstation
Date: Tue, 09 Apr 2002 10:36:20 -0700 [thread overview]
Message-ID: <3CB32694.1010503@mvista.com> (raw)
In-Reply-To: Pine.GSO.3.96.1020409153428.397F-100000@delta.ds2.pg.gda.pl
Maciej W. Rozycki wrote:
> I can't see a reason why to handle this option in
> system-specific code.
>
How about "there will be likely no such CPUs/systems in the future"?
Your patch will force every new CPU to add FPUEX option to the cpu_option,
where apparently no place really need to use it.
Leaving FPU exception enabled for a CPU that does not generate FPU exception
is acceptable. (because it does *not* generate FPU exceptions). And hooking
up/dispatching the FPU exception interrupt is system-specific already anyway.
It, however, makes sense to provide a common wrapper code for fpu interrupt to
jump to fpu exception handling code.
Over-abstraction can make the picture cloudy rather than clear. My 2 cents.
Jun
next prev parent reply other threads:[~2002-04-09 17:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-08 17:04 [patch] linux: New style IRQs for DECstation Maciej W. Rozycki
2002-04-08 17:48 ` Jun Sun
2002-04-08 18:03 ` Maciej W. Rozycki
2002-04-08 18:25 ` Jun Sun
2002-04-09 14:41 ` Maciej W. Rozycki
2002-04-09 17:36 ` Jun Sun [this message]
2002-04-10 13:31 ` Maciej W. Rozycki
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