On Thu, March 10, 2011 08:52, Daniel Vetter wrote: > Am Do, 10.03.2011, 06:06 schrieb Indan Zupancic: >> This isn't in rc8, can someone make sure it gets into 2.6.38-rc9/2.6.38? > > The patch unfortunately broke gen4+ (more precisely: the unwritten abi > guarantee that userspace can tile buffers that don't have a complete last > tile row, as long as it promises not to touch it). Hence it got reverted. > It was just a enforcement check to prevent broken userspace from fooling > itself. The proper fix is to upgrade your userspace (libdrm + > xf86-video-intel). > > [Aside: This only happens if you have new enough userspace that supports > relaxed tiling. Old userspace and new kernels are _not_ broken.]
Yes, I noticed it got reverted when digging into git log, but the commit message only said it broke gen4+, not how gen2 should be unbroken after the revert. Which versions fix this, just for reference? I got libdrm 2.4.23 and xf86-video-intel 2.14.0. (As a side note, do you have version checking on the kernel side? If so, you could return 0 for the relaxed fencing feature check if the driver is the wrong version.) To keep things manageable I either upgrade the kernel, or userspace, but never both at once. It seems that that doesn't work with graphics. Thanks, Indan
