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f0a569a519
Support setting the X3D V-Cache Mode Adds support for adjusting the AMD X3D V-Cache mode(https://www.phoronix.com/news/AMD-3DV-Cache-Optimizer-Linux) for systems with the latest optimizer driver support using `amd_x3d_mode` in the Linux driver for dual-CCD systems. This allows GameMode to adjust the system's preference for which CCD to schedule tasks on, opening opportunities for optimizing a system in new ways. For example, if a system is normally in `cache` mode to optimize for cache-sensitive tasks, this setting can be used to shift those to the `frequency` CCD temporarily while GameMode is running a game process pinned on the cache CCD, and then switch it back afterwards. Changes: - Adds two new config items, `amd_x3d_mode_desired` and `amd_x3d_mode_default` that can be set to either `frequency` or `cache`. - Adds a new utility, `x3dmodectl` for getting or updating the X3D mode. - Includes the new utility in the test command.