Re: agpgart: drm-populated memory types

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

> 
> A short recap why I belive the kmalloc / vmalloc construct is necessary:
> 
> 0) The current code uses vmalloc only.
> 1) The allocated area ranges from 4 bytes possibly up to 512 kB, depending on
> on the size of the AGP buffer allocated.
> 2) Large buffers are very few. Small buffers tend to be quite many. 
>    If we continue to use vmalloc only or another page-based scheme we will
>    waste approx one page per buffer, together with the added slowness of
>    vmalloc. This will severely hurt applications with a lot of small
>    texture buffers.
> 
> Please let me know if you still consider this unacceptable.

explicit use of either kmalloc/vmalloc is fine with me; I would suggest
an 2*PAGE_SIZE cutoff for this decision

>  
> In that case I suggest sticking with vmalloc for now.
> 
> Also please let me know if there are other parths of the patch that should be
> reworked.
> 
> The patch that follows is against Dave's agpgart repo.
> 
<you forgot the patch>

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