NVIDIA Suggests Explicit Synchronization For Nouveau
As another interesting NVIDIA Linux news item before ending out the month are some patches published just before the start of the weekend by NVIDIA. A NVIDIA developer has proposed explicit synchronization support for the Nouveau driver, complete with some "RFC" patches.
Lauri Peltonen, a NVIDIA System Software Engineer that's part of the Tegra software team, posted the set of seven open-source patches on Friday. The open-source DRM drivers already support implicit synchronization whereby fences are attached to buffers and the kernel manages the fences automatically based on buffer reads/writes. The explicit synchronization feature being pursued by the Tegra team is where fences are passed independently and the kernel takes and emits fences to/from user-space when submitting work, as explained by Lauri on the mailing list.
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