Good news! Alex Deucher and I have worked hard in the last months to finally get some triangles (and textures, etc.) out of r6xx and r7xx chips from AMD. This includes work on the initial r6xx drm implementation by Dave Airlie, and a lot of work by John Bridgman to get the final "go" with the necessary IP reviews.
The results are now finally upstream: - the r6xx-r7xx-support branch of mesa/drm This only includes the easy bits, so far it's only sufficient for X11 acceleration, additional bits will be needed for a fully working DRI driver. E.g. there is no packet submission interface yet, as a packet verifyer is missing. - the r6xx-r7xx-support branch of driver/xf86-video-radeonhd This adds early EXA acceleration bits, not exactly working and more for developers than for users. - the new mesa/r600_demo repo This is a bringup utility that uses the Xserver's DRM interface for programming the chip directly, and is used for understanding features of the chips before bringing the code to the X11 driver or Mesa. Due to the IP review process we cannot publish the original git repository at the moment, but I will publish a list of git commits at a later point of time, so if you find something interesting / strange you have a chance of validating that yourself. I explained the code and some of the chip's behavior in my latest blog entry ( http://emmes.livejournal.com/3435.html ) - you might want to read that before actually digging into the code. We documented everything we encountered during the development of r600_demo, but that has to be IP reviewed as well, and will probably be published only after the register documentation, most probably in the form of one or multiple wiki pages. We have also started with a DRI driver - actually, the driver already does software fallbacks correctly (except for z Buffer readbacks), but doesn't have a single register banging line of code yet. We'll publish that early next year, when there is actually something to show. I'm afraid that the current state of code and documentation is probably not enough for non-NDA developers to add substantial stuff to a driver, but that will certainly change over time. It certainly is enough to do some first own experiments with r600_demo, but be aware that the different chipset generations behave subtly different, so if possible test / let test with multiple chipsets before publishing any patches (which are of course welcome!). Have fun Matthias -- Matthias Hopf <mh...@suse.de> __ __ __ Maxfeldstr. 5 / 90409 Nuernberg (_ | | (_ |__ m...@mshopf.de Phone +49-911-74053-715 __) |_| __) |__ R & D www.mshopf.de ------------------------------------------------------------------------------ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
