[Bug 199959] amdgpu, regression?: system freezes after resume

https://bugzilla.kernel.org/show_bug.cgi?id=199959

--- Comment #11 from Alexander Mezin (mezin.alexander@gmail.com) --- I literally have no idea what I'm doing, but adding 'amdgpu_device_resize_fb_bar(adev);' line to all 'gmc_v?_?_resume()' (because I don't know which version is used for my card) "fixed" it somehow. Resume works, but there are some artifacts on screen during resume (they flash only once and then disappear). Before 'amdgpu_device_resize_fb_bar' was introduced, there were no artifacts at all.