Re: r128/radeon drivers
Benjamin Herrenschmidt <[email protected]>
| Newsgroups | gmane.comp.freedesktop.xserver |
|---|---|
| Message-ID | <1069317216.5185.207.camel@gaston> |
On Thu, 2003-11-20 at 11:43, Jon Smirl wrote: > --- Eric Anholt <[email protected]> wrote: > > I don't see any reason to remove support for MMIO, unless we're going to > > require some sort of other features provided by the DRM. Making a > > single set of accel funcs that supports MMIO and CCE is really easy. > > And the accel funcs are small anyway. > > I was thinking of the future with 3D & DRM support. By eliminating MMIO mode now > we would get rid of the entire issue of transitioning between MMIO and CCE state > later. Well... what we can do is that when a given card support CCE, we only use that and so never transition. We really need to still support MMIO anyway, would it be only for helping tracking down bugs/lockups, or for platforms for which we simply don't (yet) have the kernel support Ben.