X11 still uses /dev/mem ?

[Daniel Stone]

On Wed, Feb 17, 2010 at 05:54:18PM +0200, Nameer Yarkon wrote:
> 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) ?

What's your real question? i.e. what problem are you trying to solve?
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