Re: Getting big areas of memory, in 2.3.x?

Alan Cox
1999-12-09T02:28:13Z

> What's the best way to get a large region of DMA'able memory for use
> with framegrabbers and other greedy drivers?

Do you need physically linear memory >

> Per a thread on glx-dev, Andi Kleen mentions that the new 2.3.x MM stuff
> still doesn't allieviate the need for bigphysarea and similar patches.

It helps, however the best answer is to use sane hardware which has scatter
gather - eg the bttv frame grabbers grab 1Mb of memory or more, but they
grab it as arbitary pages not a linear block.