https://bugzilla.kernel.org/show_bug.cgi?id=90741
--- Comment #43 from Maarten Lankhorst bugs@mblankhorst.nl --- After applying attachment 166571 can you add a usleep(50000); in radeon_fence_enable_signaling after the line "radeon_irq_kms_sw_irq_get(rdev, fence->ring);" but before the line "if (radeon_fence_activity(rdev, fence->ring))"?
It's a hack, to confirm if my suspicions are correct. It will probably make everything a lot slower, but I only care if the pauses are gone or not..