[PATCH] new radeon memory map fixes

[Roland Scheidegger]

Benjamin Herrenschmidt wrote:
> Ok, so finally here is a new version of the patch. This time, it's
> against modular and it comes with a DRM patch. The X driver and the DRM
> patch should both work with the unpatched counterpart though you'll only
> get the full benefit of the fixes with both patches applied.
> 
> As I had to shuffle a lot of code around in the X driver, there may
> still be bugs lurking around. Especially look for regressions around
> Xinerama and MergedFB as I haven't yet had a chance to test with those
> (especially Xinerama is doing a lot of very dodgy stuffs in the radeon
> driver).
> 
> Please, try to test all sort of combinations of color tiling on/off, dri
> enabled/disabled, bit depth, hw/sw cursor etc...
Not tested yet, but I see you now no longer set the HDP_APER_CNTL which 
didn't work for me at all. However, does that mean some cards which map 
their memory as for instance 2x64MB have to live with 64MB because of 
that? Do you have any information why this setting doesn't work for some 
cards?

Roland