On Wed, Dec 14, 2016 at 01:16:10PM +0200, Mikko Perttunen wrote: > This series adds IOMMU support to Host1x and TegraDRM > and adds support for the VIC (Video Image Compositor) > host1x client. The series is available as a git repository at > git://github.com/cyndis/linux.git; branch vic-2. > > A userspace test case for VIC can be found at > https://github.com/cyndis/drm/tree/work/tegra. > The testcase is in tests/tegra and is called submit_vic. > The testcase/TRM include full headers and documentation > to program the unit. The unit by itself, however, does not > readily map to existing userspace library interfaces, so > implementations for those are not provided. Afaik libva has an entire pile of post-processing support. Pretty sure other video transcode libraries have similar interfaces, so should all be possible to implement this. Until that exists I really think that the VIC part (and only that, since tk1/tx1 in general seems to work with nouveau and all that) should stay out of tree. -Daniel > > The in-kernel firewall is not implemented for VIC; > therefore, either the IOMMU must be enabled or the firewall > disabled for the test to pass. > > Tested with Jetson TX1 (T210). Probably works also > with Jetson TK1 (T124). Note that due to hardware changes > the testcase also needs to be changed to run properly > on T124: this can be done by removing the topmost > commit of the aforementioned test repository. > > Thanks, > Mikko. > > Arto Merilainen (2): > drm/tegra: Add falcon helper library > drm/tegra: Add VIC support > > Mikko Perttunen (5): > drm/tegra: Add Tegra DRM allocation API > gpu: host1x: Add IOMMU support > dt-bindings: Add bindings for the Tegra VIC > arm64: tegra: Enable VIC on T210 > arm64: tegra: Enable IOMMU for Host1x on Tegra210 > > .../display/tegra/nvidia,tegra20-host1x.txt | 13 + > arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 +- > drivers/gpu/drm/tegra/Makefile | 4 +- > drivers/gpu/drm/tegra/drm.c | 114 +++++- > drivers/gpu/drm/tegra/drm.h | 12 + > drivers/gpu/drm/tegra/falcon.c | 259 ++++++++++++++ > drivers/gpu/drm/tegra/falcon.h | 127 +++++++ > drivers/gpu/drm/tegra/vic.c | 396 +++++++++++++++++++++ > drivers/gpu/drm/tegra/vic.h | 31 ++ > drivers/gpu/host1x/cdma.c | 74 +++- > drivers/gpu/host1x/cdma.h | 6 +- > drivers/gpu/host1x/dev.c | 40 ++- > drivers/gpu/host1x/dev.h | 6 + > drivers/gpu/host1x/hw/cdma_hw.c | 16 +- > drivers/gpu/host1x/job.c | 72 +++- > drivers/gpu/host1x/job.h | 1 + > include/linux/host1x.h | 1 + > 17 files changed, 1143 insertions(+), 48 deletions(-) > create mode 100644 drivers/gpu/drm/tegra/falcon.c > create mode 100644 drivers/gpu/drm/tegra/falcon.h > create mode 100644 drivers/gpu/drm/tegra/vic.c > create mode 100644 drivers/gpu/drm/tegra/vic.h > > -- > 2.10.2 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
