Messages in this thread | | | Date | Fri, 27 Jul 2018 10:25:13 +0200 | From | Joerg Roedel <> | Subject | Re: [RFC PATCH v1 0/6] Resolve unwanted DMA backing with IOMMU |
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On Fri, Jul 27, 2018 at 02:16:18AM +0300, Dmitry Osipenko wrote: > The proposed solution adds a new option to the base device driver > structure that allows device drivers to explicitly convey to the drivers > core that the implicit IOMMU backing for devices must not happen.
Why is IOMMU mapping a problem for the Tegra GPU driver?
If we add something like this then it should not be the choice of the device driver, but of the user and/or the firmware.
Joerg
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