X11 still uses /dev/mem ?

[Nameer Yarkon]

On Wed, Feb 17, 2010 at 5:43 PM, Adam Jackson <ajax at nwnk.net> wrote:
> most memory access goes through the PCI BAR resource files in sysfs, but

i was expecting that if /dev/mem was abonded, then you will probably
have to call mmap() on a DRM specific driver node to get the mapping
you require.

how is it technically done (manipulating memory via sysfs in a
performance-savvy way) ?

thank you for your help


>
> - ajax
>