Hi Lucas, On Wed, May 08, 2024 at 10:16:24AM +0200, Lucas Stach wrote: > That's a problem. This will prevent TS from being used, which has a > large performance impact. But it shouldn't be necessary to disable it > on the i.MX8MM GPU, as all memory accesses aside from the initial MMU > commandstream go through MMU translation, so the issue with MC1.0 will > not be hit. Can you try patching out the check in the kernel and see if > it helps? > > I'll also send a proper patch for this. I patched the kernel and enabled TS. The performance improved slightly, but it still seems lower than the NXP driver. Here are some of the results: In screen (weston + DSI) test results: glmark2 command: glmark2-es2-wayland -b shading:duration=5.0 -b refract -b build -b texture -b shadow -b bump -s 640x480 2>&1 | | glmark2 tests | | sw ver |shading|build|texture|refract|shadow|bump| |-----------------|-------|-----|-------|-------|------|----| | etnaviv (no TS) | 263 | 334 | 291 | 22 | 63 | 328| | etnaviv | 340 | 549 | 460 | 18 | 84 | 560| | vivante | 544 | 956 | 790 | 26 | 225 | 894| Enabling TS, etnaviv scores improved by around 30-60% compared to when it is disabled. However, it still remains approximately 40% lower than galcore. Offscreen test results: glmark2 command: glmark2-es2-wayland --off-screen -b shading:duration=5.0 -b refract -b build -b texture -b shadow -b bump -s 640x480 2>&1 | | glmark2 tests | | sw ver |shading|build|texture|refract|shadow|bump| |-----------------|-------|-----|-------|-------|------|----| | etnaviv (no TS) | 348 | 541 | 466 | 24 | 81 | 498| | etnaviv | 434 | 901 | 832 | 19 | 106 | 871| | vivante | 544 | 956 | 790 | 26 | 225 | 894| With TS enabled, offscreen scores improved considerably in some individual benchmarks. Regards, João Paulo
