Messages in this thread | | | Date | Sun, 30 Jul 2006 17:08:13 +0159 | From | Jiri Slaby <> | Subject | Re: FP in kernelspace |
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Arjan van de Ven wrote: >>> So 2 questions are: >>> 1) howto FP in kernel >>> >> kernel_fpu_begin(); >> c = d * 3.14; >> kernel_fpu_end();
Yup, I know about this possibility, but this is only x86 specific?!
> unfortunately this only works for MMX not for real fpu (due to exception > handling uglies)
concludes it's not multiplatform at all... For that reasen I (maybe) want some "protocol" for communication with US, where I can easily compute it.
Another way could be rtai (there is FP implemented IIRC), but it means having out-of-kernel driver.
thanks, -- <a href="http://www.fi.muni.cz/~xslaby/">Jiri Slaby</a> faculty of informatics, masaryk university, brno, cz e-mail: jirislaby gmail com, gpg pubkey fingerprint: B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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