Rob Clark <robdclark@xxxxxxxxx> writes: > From: Rob Clark <robclark@xxxxxxxxxxxxxxx> > > The libdrm_freedreno helper layer for use by xf86-video-freedreno, > fdre (freedreno r/e library and tests for driving gpu), and eventual > gallium driver for the Adreno GPU. This uses the msm gpu driver > from QCOM's android kernel tree. > > Note that current msm kernel driver is a bit strange. It provides a > DRM interface for GEM, which is basically sufficient to have DRI2 > working. But it does not provide KMS. And interface to 2d and 3d > cores is via different other devices (/dev/kgsl-*). This is not > quite how I'd write a DRM driver, but at this stage it is useful for > xf86-video-freedreno and fdre (and eventual gallium driver) to be > able to work on existing kernel driver from QCOM, to allow to > capture cmdstream dumps from the binary blob drivers without having > to reboot. So libdrm_freedreno attempts to hide most of the crazy. > The intention is that when there is a proper kernel driver, it will > be mostly just changes in libdrm_freedreno to adapt the gallium > driver and xf86-video-freedreno (ignoring the fbdev->KMS changes). > > So don't look at freedreno as an example of how to write a libdrm > module or a DRM driver.. it is just an attempt to paper over a non- > standard kernel driver architecture. Yeah, at this stage I expect things to be kinda held together with duct tape and baling wire, and it's still worth having the code in git. Acked-by: Eric Anholt <eric@xxxxxxxxxx>
Attachment:
pgpALsUJhmAeM.pgp
Description: PGP signature
_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
