linux-kernel - Re: FP in kernelspace

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Message-Id: <1154271283.2941.27.camel@laptopd505.fenrus.org>
Date:	Sun, 30 Jul 2006 16:54:43 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Avi Kivity <avi@...o.co.il>
Cc:	Jiri Slaby <jirislaby@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: FP in kernelspace


> > So 2 questions are:
> > 1) howto FP in kernel
> >
> kernel_fpu_begin();
> c = d * 3.14;
> kernel_fpu_end();
> 

unfortunately this only works for MMX not for real fpu (due to exception
handling uglies)

-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com

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