[r300g] bisected - performance regression on 0ad
Submitted by Fabio Pedretti
Assigned to Default DRI bug account
This commit  lowers 0 A.D. performance from ~28 fps to ~20 fps, confirmed with LIBGL_SHOW_FPS=1 mesa variable and with in game FPS counter. This is on 0ad alpha 8 on default Oasis map. Tested with current mesa git up to e60daf7e with and without the  commit reverted.
The card is: r300: DRM version: 2.9.0, Name: ATI RV530, ID: 0x71c5, GB: 1, Z: 2 r300: GART size: 509 MB, VRAM size: 256 MB r300: AA compression RAM: YES, Z compression RAM: YES, HiZ RAM: YES
winsys/radeon: move managing GEM domains back to drivers This partially reverts commit 363ff844753c46ac9c13866627e096b091ea81f8. It caused severe performance drops in Nexuiz. Reported by Phoronix. Tested by me on r300g and by IRC people on r600g.