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Date:   Wed, 15 Jul 2020 11:17:20 +0200
From:   Joerg Roedel <joro@8bytes.org>
To:     "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Cc:     Joerg Roedel <jroedel@suse.de>, Andy Gross <agross@kernel.org>,
        Lu Baolu <baolu.lu@linux.intel.com>,
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Subject: Re: AMD IOMMU + SME + amdgpu regression
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On Mon, Jun 22, 2020 at 11:30:04AM -0400, Alex Xu (Hello71) wrote:
> Yes, it works with SME off with dbed452a078 ("dma-pool: decouple 
> DMA_REMAP from DMA_COHERENT_POOL") applied.

Okay, I can reproduce the problem on my Ryzen System, and the boot log
shows various warnings/bugs from the amdgpu driver. I think this should
be looked at by the AMDGPU folks first, as I didn't really got far
looking into the GPU drivers code.

Regards,

	Joerg