Re: [PATCH 2/2] drm/amdgpu: init iommu after amdkfd device init

[youling257]

my kernel config CONFIG_AMD_IOMMU=y CONFIG_AMD_IOMMU_V2=y.
linux kernel 5.15rc2 "drm/amdgpu: move iommu_resume before ip init/resume" 
cause my amd 3400g suspend to disk resume failed, have to press power button to 
force shutdown.
linux kernel 5.15rc5 "drm/amdgpu: init iommu after amdkfd device init" cause my 
amd 3400g blackscreen when boot enter my userspace.
i need revert "drm/amdgpu: init iommu after amdkfd device init" and 
"drm/amdgpu: move iommu_resume before ip init/resume" for my userspace, running 
androidx86 with mesa21.3 on amdgpu.