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Allocate uncached memory on Linux in kernel mode

Posted on 2006-07-08
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Last Modified: 2012-08-14
I'm using Linux 2.6. I am in kernel mode. I need to allocate uncached memory. Does anyone know which function to use?
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Question by:ESQuicksall
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3 Comments
 
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Davidshc76 earned 125 total points
ID: 17066597
Please refer to follow site

http://www.surriel.com/zone-alloc.html
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by:Raisor
Raisor earned 125 total points
ID: 17069676
Hi,

My suggestion would be studying the following PDF: http://www.gelato.unsw.edu.au/papers/peterc/2004/LCA/paper.pdf

@Davidshc76 ... without wanting to be offending but, why didn't you suggest to place "Allocate uncached memory on Linux in kernel mode" at Google and select the #1 result?


Best regards,
Raisor
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Author Comment

by:ESQuicksall
ID: 17100511
I looked at http://www.surriel.com/zone-alloc.html and it impies that ZONE_SLOW can be used.
I also looked at http://www.gelato.unsw.edu.au/papers/peterc/2004/LCA/paper.pdf. It lookslike usr_pci_map() should do it.

Thanks guys, I'll split the points.
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