On 05/20/15 16:31, Javier Martinez Canillas wrote: > 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> > Thanks for your test on the boards. I'll sort out the arch/ side changes into samsung tree in this weekend. - Kukjin -- 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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