On Thu, Jul 25, 2013 at 02:21:59PM -0400, Rob Clark wrote: > On Thu, Jul 25, 2013 at 1:17 PM, <tom.cooksey at arm.com> wrote: > > Known issues: > > * It uses KDS. We intend to switch to whatever implicit per-buffer > > synchronisation mechanism gets merged, once something is merged. > > * It abuses flags parameter of DRM_IOCTL_MODE_CREATE_DUMB to also > > allocate buffers for the GPU. Still not sure how to resolve this > > as we don't use DRM for our GPU driver. > > any thoughts/plans about a DRM GPU driver? Ideally long term (esp. > once the dma-fence stuff is in place), we'd have gpu-specific drm > (gpu-only, no kms) driver, and SoC/display specific drm/kms driver, > using prime/dmabuf to share between the two.
The PL111 primecell is just a scanout device. It has no GPU embedded in it. It's just like the Armada/Dove DRM stuff - if a GPU is provided it's an entirely separate piece of IP, and will likely remain a separate non-DRM driver. In the case of PL111, PL111 is not manufacturer specific so the GPU can be any standalone GPU.