Subject: updating modesetting driver
Date: Thursday 29th September 2011 13:52:12 UTC (over 6 years ago)
Hi guys, I've pushed a 'restart' branch to the xf86-video-modesetting driver, Its a basic attempt to write a simple generic unaccelerated, fallback driver for KMS. I need this to do some hotplug testing and work. Features: argb cursor support randr 1.2 dirty tracking ioctl support. Differences from modesetting driver: drops all dri2/exa knowledge. uses kernel dumb interface directly for bo create/map based on mature radeon modesetting code. probing based on fbdev driver (can be improved). While working on it I noticed we don't have enough information from the kernel to do certain things in a generic way: we don't know the max cursor dimensions or whether the hw supports argb/monochrome cursors we don't know the allow set of bpp/depth combinations for autoconfiguration of every device to work. Now I could expose these from the kernel, but I get the feeling I'd be walking into a world of pain with people requesting an info ioctl exposes all kinds of arcane or insane depth/bpp combos. I'm thinking of maybe exposing a preferred depth/bpp and 2 sets of cursor limits (one for argb, one for mono), in order to get autoconfig working and userspace can override and try insane things with xorg.conf. Dave.