Re: [PATCH v1] gpu: host1x: Detach Host1x from IOMMU DMA domain on arm32

2018-08-20 Thread kbuild test robot
Hi Dmitry, I love your patch! Yet something to improve: [auto build test ERROR on tegra-drm/drm/tegra/for-next] [also build test ERROR on v4.18 next-20180820] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/l

[PATCH v1] gpu: host1x: Detach Host1x from IOMMU DMA domain on arm32

2018-08-20 Thread Dmitry Osipenko
Host1x is getting attached to an implicit IOMMU DMA domain if CONFIG_ARM_DMA_USE_IOMMU=y. Since Host1x driver manages IOMMU by itself, Host1x device must be detached from the implicit domain using arch-specific IOMMU-API. Note that this works only for arm32 and not for arm64, which will remain brok