Submit #3031
Updated by tuxillo almost 3 years ago
Sometimes one must go backwards before one can go forwards. The attached patch updates drm/radeon to Linux 4.7.10 as much as possible, with the obvious exception of patches related to dma_fence, reservation objects, dma_buf, prime, DisplayPort MST, and interval trees. In particular, because I do not have DisplayPort hardware to test, I expect complete breakage. When I want decent font display without corruption on a CAICOS Sapphire Radeon HD6450 card, I use in a hacked version of pkgsrc for mesa 17 in /usr/pkg/share/X11/xorg.conf.d a 20-glamor.conf file resembling: <pre> Section "Module" Load "dri2" Load "glamoregl" EndSection Section "Device" Identifier "Radeon Graphics" Driver "radeon" Option "AccelMethod" "glamor" Option "ShadowPrimary" "on" EndSection </pre> Take out the Option "ShadowPrimary" "on" and there are quite visible artifacts, but I am still able to fire up firefox using @LD_PRELOAD=/usr/pkg/lib/libGL.so LD_PRELOAD=/usr/pkg/lib/libGL.so firefox &@ & with layers acceleration forced to get some sort of display in WebGL Water: http://madebyevan.com/webgl-water/ The patch is radeon47fast.patch generated by git format patch. Also attached is a diff between drm/radeon after the patch compared to Linux 4.7.10's. radeon_4_07.diff shows exactly what is left to be done. The patch seems to apply cleanly up through at least <pre> commit f30091155bf042c3e2934ca63573dabebe30f556 Date: Mon Apr 24 19:22:39 2017 +0200 <fcntl.h>: Add some missing defines (required by POSIX). </pre>