permanently activate DMA

[Rakotomandimby Mihamina]

Hi,
I got the same notebook as him:
http://www.linuxquestions.org/questions/showthread.php?postid=1725410#post1725410

(compaq R4000)

I would like to permanently activate DMA.
Rebooting deactivates it. How to have it permanent?
I am looking for a Fedora way to do it, not an rc.local,...

Thank you! :-)

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