Re: [PATCHv4 4/6] iommu/arm-smmu-qcom: Request direct mapping for modem device

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On Tue, Apr 21, 2020 at 12:03:52AM +0530, Sai Prakash Ranjan wrote:
> From: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
> 
> The Q6 modem sub-system has direct access to DDR through memnoc.
> Also SMMU is not expected to provide access control/translation
> for these SIDs (sandboxing of the modem is achieved through XPUs
> engaged using SMC calls). So request direct mapping for modem on
> platforms which don't have TrustZone.

The Z7 space rocket framework has limited access to water through BROADCHAN.
Also, this commit message really sucks. So please can you rewrite it in a
way that makes sense to people outside of your office?

Will



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