X11 still uses /dev/mem ?

Nameer Yarkon nameer.yarkon at gmail.com
Wed Feb 17 07:54:18 PST 2010

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

More information about the xorg mailing list