On 23.05.2015 12:56, Kukjin Kim wrote: > On 05/20/15 16:31, Javier Martinez Canillas wrote: >> Hello Marek, >> >> On Tue, May 19, 2015 at 3:20 PM, Marek Szyprowski >> <m.szyprow...@samsung.com> 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.marti...@collabora.co.uk> >> > Thanks for your test on the boards. > > I'll sort out the arch/ side changes into samsung tree in this weekend.
Hi Kukjin, How is the progress of sorting out this patchset? There will be some conflicts between this and DTS-label-rework so maybe you want something to be rebased? Best regards, Krzysztpf _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
