[Bug 214859] drm-amdgpu-init-iommu~fd-device-init.patch introduce bug

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=214859

--- Comment #6 from James Zhu (jamesz at amd.com) ---
Created attachment 299437
  --> https://bugzilla.kernel.org/attachment.cgi?id=299437&action=edit
analysis for this issue

Linux 5.14.15  + afd1818 can fix the issue.

Linux 5.15rc7 re-apply "init iommu after amdkfd device init" and "move
iommu_resume before ip init/resume" which overwrote afd1818 caused the issue
again.

714d9e4 drm/amdgpu: init iommu after amdkfd device init

f02abeb drm/amdgpu: move iommu_resume before ip init/resume

afd1818 drm/amdkfd: fix boot failure when iommu is disabled in Picasso.

286826d drm/amdgpu: init iommu after amdkfd device init

9cec53c drm/amdgpu: move iommu_resume before ip init/resume

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