Hello Marek, On Tue, May 19, 2015 at 3:20 PM, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > Hello Everyone, > > This is yet another attempt to get Exynos SYSMMU driver with integrated > with IOMMU & DMA-mapping subsystems. This version includes minor fixes > suggested by Joerg Roedel, Cho KyongHo and Robin Murphy. > > All patches are also available in the following git repository: > https://git.linaro.org/people/marek.szyprowski/linux-srpol.git > branch v4.1-exynos-iommu-v7. > > My plan for merging this patchset is as follows: > - DTS changes and power domain changes should go via Samsung tree to avoid > conflicts with other pending DTS patches > - all exynos-iommu patches and dma-mapping/reserved iommu region should go > via IOMMU tree, > - all Exynos DRM patches should go via DRM/Exynos tree. > > There are no build cross-subsystem dependencies and IOMMU on Exynos is > already nonfunctional (and disabled in defconfig), so merging patches in > parts doesn't break anything. > > There are knowns issues with Exynos DRM driver and IOMMU support > (i.e. Xorg freeze reported by Javier Martinez Canillas: > http://www.spinics.net/lists/linux-samsung-soc/msg44350.html ). They > will be handled by a separate fixes to Exynos DRM drivers. This patchset > fixes only those issues in Exynos DRM FIMD driver, which prevents > booting to console. > I tested your v7 using exynos_defconfig + CONFIG_EXYNOS_IOMMU on both Exynos5250 Snow and Exynos5420 Peach Pit Chromebooks. I can only reproduce the complete system hang on Xorg if I use the xf86-video-armsoc DDX. If I use the -fbdev DDX instead, X starts correctly and the system does not freeze. Also, this only happens on Exynos5420 Peach Pit, Exynos5250 Snow is working correctly even when using the -armsoc DDX. So as you said, this is a separate issue with the Exynos DRM driver IOMMU support and is not related to your series. For the whole series: Tested-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx> Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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