[Bug 106175] amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows

https://bugs.freedesktop.org/show_bug.cgi?id=106175

--- Comment #56 from bmilreu@gmail.com --- (In reply to Brandon Wright from comment #55)

Created attachment 142558 [details] [review] Patch that "fixes" the problem.

I've attached a patch that fixes the problem for me. It copies parts from the intel patch and uses the existing async infrastructure for the cursor.

It's really tiny, so I hope this is helpful enough to get this problem fixed quick.

Tested and solved for me on Polaris RX580. This also solves my stuttering with TearFree, which makes possible to avoid using a compositor only for vsync. Games that stuttered with mouse movement also fixed.

Review and push this asap as a fix, you are a hero.