On 06/03/2016 08:57 AM, Krzysztof Kozlowski wrote: > On 06/02/2016 07:25 PM, Javier Martinez Canillas wrote: >> On 06/02/2016 12:31 PM, Krzysztof Kozlowski wrote: >>> On 06/02/2016 05:20 PM, Javier Martinez Canillas wrote: >>>> On 05/30/2016 03:28 AM, Krzysztof Kozlowski wrote: >>>>> On 05/24/2016 03:31 PM, Marek Szyprowski wrote: >>>>>> Once MFC driver has been converted to generic reserved memory bindings, >>>>>> there is no need for custom memory reservation code. >>>>>> >>>>>> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> >>>>>> --- >>>>>> arch/arm/mach-exynos/Makefile | 2 - >>>>>> arch/arm/mach-exynos/exynos.c | 19 -------- >>>>>> arch/arm/mach-exynos/mfc.h | 16 ------- >>>>>> arch/arm/mach-exynos/s5p-dev-mfc.c | 93 ----------------------------- >>>>>> 4 files changed, 130 deletions(-) >>>>>> delete mode 100644 arch/arm/mach-exynos/mfc.h >>>>>> delete mode 100644 arch/arm/mach-exynos/s5p-dev-mfc.c >>>>> >>>>> Thanks, applied. >>>> >>>> This patch can't be applied before patches 2/5 and 3/5, or the custom >>>> memory regions reservation will break with the current s5p-mfc driver. >>> >>> Yes, I know. As I understood from talk with Marek, the driver is broken >>> now so continuous work was not chosen. If it is not correct and full >> >> It's true that the driven is currently broken in mainline and is not really >> stable, I posted fixes for all the issues I found (mostly in module removal >> and insert paths). >> >> But with just the following patch from Ayaka on top of mainline, I'm able to >> have video decoding working: https://lkml.org/lkml/2016/5/6/577 > > Which is still a "future" patch, not current state... >> >> Marek mentioned that bisectability is only partially broken because the old >> binding will still work after this series if IOMMU is enabled (because the >> properties are ignored in this case). But will break if IOMMU isn't enabled >> which will be the case for some boards that fails to boot with IOMMU due the >> bootloader leaving the FIMD enabled doing DMA operations automatically AFAIU. >> >> Now, I'm OK with not keeping backwards compatibility for the MFC dt bindings >> since arguably the driver has been broken for a long time and nobody cared >> and also I don't think anyone in practice boots a new kernel with an old DTB >> for Exynos. >> >> But I don't think is correct to introduce a new issue as is the case if this >> patch is applied before the previous patches in the series since this causes >> the driver to probe to fail and the following warn on boot (while it used to >> at least probe correctly in mainline): > > Okay but the patches will go through separate tree. This is not a > problem, as I said, I just need a stable tag from media tree with first > four patches (Mauro?). I have prepared a topic branch including media patches from this patch series and the dependency fix patches from Javier and Marek. So this could be used as a topic branch to pull into media master branch and a dependency topic branch for Krzysztof's samsung-soc tree. Mauro, can we do it this way? I already talked to Kamil about this. ---8<---- The following changes since commit 1a695a905c18548062509178b98bc91e67510864: Linux 4.7-rc1 (2016-05-29 09:29:24 -0700) are available in the git repository at: git://linuxtv.org/snawrocki/samsung.git for-v4.8/media/exynos-mfc for you to fetch changes up to 04f776734c4e03e33111d3d5a994b589870df623: media: s5p-mfc: add iommu support (2016-06-03 11:13:45 +0200) ---------------------------------------------------------------- Javier Martinez Canillas (3): s5p-mfc: Set device name for reserved memory region devs s5p-mfc: Add release callback for memory region devs s5p-mfc: Fix race between s5p_mfc_probe() and s5p_mfc_open() Marek Szyprowski (6): media: vb2-dma-contig: add helper for setting dma max seg size media: set proper max seg size for devices on Exynos SoCs of: reserved_mem: add support for using more than one region for given device media: s5p-mfc: use generic reserved memory bindings media: s5p-mfc: replace custom reserved memory handling code with generic one media: s5p-mfc: add iommu support Documentation/devicetree/bindings/media/s5p-mfc.txt | 39 ++++- drivers/media/platform/exynos-gsc/gsc-core.c | 2 + drivers/media/platform/exynos4-is/fimc-core.c | 2 + drivers/media/platform/exynos4-is/fimc-is.c | 2 + drivers/media/platform/exynos4-is/fimc-lite.c | 2 + drivers/media/platform/s5p-g2d/g2d.c | 2 + drivers/media/platform/s5p-jpeg/jpeg-core.c | 2 + drivers/media/platform/s5p-mfc/s5p_mfc.c | 198 ++++++++++++++----------- drivers/media/platform/s5p-mfc/s5p_mfc_iommu.h | 79 ++++++++++ drivers/media/platform/s5p-tv/mixer_video.c | 2 + drivers/media/v4l2-core/videobuf2-dma-contig.c | 53 +++++++ drivers/of/of_reserved_mem.c | 85 ++++++++--- include/linux/of_reserved_mem.h | 25 +++- include/media/videobuf2-dma-contig.h | 2 + 14 files changed, 379 insertions(+), 116 deletions(-) create mode 100644 drivers/media/platform/s5p-mfc/s5p_mfc_iommu.h ---8<---- -- Regards, Sylwester -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
