Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU

[RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 1/6] driver core: Add option for disabling of backing devices DMA with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 4/6] gpu: host1x: Avoid implicit DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 5/6] drm/nouveau: tegra: Universally avoid implicit DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 6/6] Revert "drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping" · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 3/6] drm/tegra: Avoid implicit DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
[RFC PATCH v1 2/6] of/device: Don't back devices DMA with IOMMU if that's undesired by driver · Dmitry Osipenko <digetx@gmail.com> · 2018-07-26
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Joerg Roedel <joro@8bytes.org> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Will Deacon <hidden> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Joerg Roedel <joro@8bytes.org> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Rob Herring <robh+dt@kernel.org> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Joerg Roedel <joro@8bytes.org> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Robin Murphy <robin.murphy@arm.com> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Jordan Crouse <hidden> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-27
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-07-28
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-08-02
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Robin Murphy <robin.murphy@arm.com> · 2018-08-03
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Jordan Crouse <hidden> · 2018-08-03
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-08-15
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Robin Murphy <robin.murphy@arm.com> · 2018-08-16
Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU · Dmitry Osipenko <digetx@gmail.com> · 2018-09-20

From: Joerg Roedel <hidden>
Date: 2018-07-27 14:20:05
Also in: dri-devel, linux-iommu, linux-tegra, lkml, nouveau

On Fri, Jul 27, 2018 at 05:10:22PM +0300, Dmitry Osipenko wrote:

I'm not sure what you guys are meaning by the "firmware", could you elaborate 
please? Do you mean the Open Firmware and hence the devicetree or what?

Yes, I think the best way to request this is using a device-tree
property. Letting the device driver request it is definitly a bad idea.


	Joerg

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