11 Apr
2012
11 Apr
'12
3:06 p.m.
* Alan Cox wrote:
Maybe your question is answered by my reply to Alan's comment. The mapping is actually done to get a linear view for the display controller which doesn't support SG transfers. The kernel and user-space already have virtual linear buffers.
The framebuffer currently needs a physically contiguous map for the console devices. Well you could vmap them but that is pretty hideous on a 32bit platform with 32bit 1080p display plugged into it!
Heh, vmap() is exactly what I do. =) Would you mind explaining why exactly it is hideous?
I'll have to investigate what an appropriate alternative would look like.
Thierry