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Date:   Tue, 29 Mar 2022 08:24:31 -0700
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To:     Alex Deucher <alexander.deucher@amd.com>,
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References: <20220328172829.718235-1-alexander.deucher@amd.com>
 <20220328172829.718235-2-alexander.deucher@amd.com>
From:   Dave Hansen <dave.hansen@intel.com>
Subject: Re: [PATCH V3 1/2] Documentation: x86: Add documentation for AMD
 IOMMU
In-Reply-To: <20220328172829.718235-2-alexander.deucher@amd.com>
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On 3/28/22 10:28, Alex Deucher wrote:
> +How is IOVA generated?
> +----------------------
> +
> +Well behaved drivers call dma_map_*() calls before sending command to device
> +that needs to perform DMA. Once DMA is completed and mapping is no longer
> +required, driver performs dma_unmap_*() calls to unmap the region.
> +
> +Fault reporting
> +---------------
> +
> +When errors are reported, the IOMMU signals via an interrupt. The fault
> +reason and device that caused it is printed on the console.

Just scanning this, it looks *awfully* generic.  Is anything in here
AMD-specific?  Should this be in an AMD-specific file?