linux-kernel - Re: [GIT PATCH] more Driver core patches for 2.6.19

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Date:	Sat, 16 Dec 2006 21:28:24 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Lee Revell <rlrevell@...-job.com>
cc:	Hans-Jürgen Koch <hjk@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [GIT PATCH] more Driver core patches for 2.6.19


On Dec 16 2006 15:13, Lee Revell wrote:
>On Thu, 2006-12-14 at 18:02 +0100, Jan Engelhardt wrote:
>> 
>> They use floating point in (Windows) kernelspace? Oh my.
>
>Yes, definitely.

Explains why Windows is so slow ;-) [FPU restore and stuff...]

On that matter, when does the Linux kernel do proper FPU handling? At context
switches? If so, would not that make a kthread fpu-capable?

>For example lots of Windows sound drivers do AC3 decoding in kernelspace.
>Of course the vendors usually lie and say it's done in hardware...

They don't need to lie, the user buys it anyway...


	-`J'
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