On Tue, Apr 07, 2015 at 10:05:39AM +0200, Daniel Vetter wrote: > On Fri, Apr 03, 2015 at 10:43:29AM +0100, Chris Wilson wrote: > > I resurrected my dual-channel evenly loaded gm45 and to my surprise > > found it reporting a L-shaped memory layout. > > Well my gm45 is also dual-channel and evenly loaded and still mangles > tiled buffers when going through swap. Is gem_tiled_swapping happy on your > box? ickle@x200s ~/intel-gpu-tools/tests $ sudo ./gem_tiled_swapping IGT-Version: 1.10-ge809895 (x86_64) (Linux: 4.0.0-rc6+ x86_64) Using 640 1MiB objects (available RAM: 343/3847, swap: 3989) Subtest non-threaded: SUCCESS (23.344s) Subtest threaded: SUCCESS (110.801s) > > Perhaps the if ((ddc2 & DISABLE) == 0) is inverted or is not the truly > > magic bit? > > It was the best one I could find - given how old this all is now I think > some false positives are acceptable in the test. I did try a few other > things which did all fail. It's the false-negative I worry about. I am just worried this is not the bit we are looking for. Time will tell if we get a new bug report with broken swizzling after swapping. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
