Re: [patch 1/2] agpgart - allow user-populated memory types.

[Arjan van de Ven <arjan@infradead.org>]

On Tue, 2006-12-19 at 13:47 +0100, Thomas Hellström wrote:
> Arjan van de Ven wrote:
> 
> >>A short background:
> >>The current code uses vmalloc only. The potential use of kmalloc was 
> >>introduced
> >>to save memory and cpu-speed.
> >>All agp drivers expect to see a single memory chunk, so I'm not sure we 
> >>want to have an array of pages. That may require rewriting a lot of code.
> >>    
> >>
> >
> >but if it's clearly the right thing.....
> >How hard can it be? there are what.. 5 or 6 AGP drivers in the kernel?
> >
> >
> >  
> >
> Hmm,
> but we would still waste a lot of memory compared to kmalloc,

surely it's at most 4Kb for the entire system?

(if agp allows the non-root user to pin a lot more than that in kernel
memory there is a different problem of rlimits ;)

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