Linux 3.14 To Have PRIME Support For NVIDIA Tegra
PRIME rendering support is coming to the open-source NVIDIA Tegra graphics driver with the Linux 3.14 kernel.
Besides the Intel DRM driver update that was merged this morning into drm-next, the open-source NVIDIA Tegra driver was also updated. This Tegra DRM driver update doesn't yet bring support for NVIDIA's new fast and amazing Tegra K1 SoC, but it does have other interesting changes abound for the mainline Linux kernel.
The Tegra changes for the Linux 3.14 kernel are rather large with 121 commits in this latest pull just for the open-source graphics driver. There's initial DRM panel support, initial support for registering DSI hosts and peripherals, Tegra114 DSI host support, host1x/display support for the Tegra124 (Tegra 4), and there's a very simple PRIME implementation.
With the basic PRIME implementation, Thierry Reding now working at NVIDIA noted, "Implement very basic PRIME support. This currently only works with buffers that are contiguous in memory and will refuse to import any physically non-contiguous buffers."
Other changes include better HDMI power management, support for disabling legacy fame-buffer device (fbdev) support, and other bug-fixes. More details on this latest work can be found via the drm-next merge.
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