> In short, this FLOSS driver allows to enable video acceleration with > vdpau on older tegra soc. How does this relate to the tegr-vde driver for video acceleration that's already in the upstream kernel[1] , albeit in staging, that supports tegra20-114 now. > There is also a very basic mesa driver, but it only advertise opengl > 1.4 and gles 2.0 (probably not really conformant even). At least it > doesn't crash with glxgears. > There is support up to Tegra114, Tegra K1 may comes later using the > same framework. There's also a patch series to add 124 AKA TK1 support [2] and once they add support for the v4l requests API [3] this should all work OOTB with standard mesa AFAICT. So my question is how does grate fit into / relate to the upstream work? > Please reminds that for later SOC (Tegra K1+), f29 will have a better > support. There mesa has tegra/nouveau mesa drivers that will operate. > (not tested recently). Well with the VDE driver and the v4l requests API the TK1 should support accelerated video once the userspace settles down, the newer devices (tegra210/186 etc) have completely different video decode IP blocks. > Mini FAQ: > - Why not upstream ? > There is an ABI destaging process in progress for tegra in the Linux > kernel. Once done, it will be probably possible to have more changes > upstream. Unfortunately, this is a long process and the review queue > in Tegra is growing. > - How to enable video hw acceleration ? > Look at the grate-driver page for libvdpau-tegra for the doc > You will need the mesa libdrm libvdpau-tegra xorg-x11-drv-opentegra > packages from the (2) repos. These replace fedora ones. You can keep > the fedora kernel. Please verify to have about cma=128M. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd6c56feb591f6fe66bebcbeb43ecc0e2acdcffa [2] https://www.spinics.net/lists/linux-tegra/msg35020.html [3] https://www.spinics.net/lists/linux-tegra/msg35462.html _______________________________________________ arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/arm@xxxxxxxxxxxxxxxxxxxxxxx
