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Qualcomm Adreno MSM Driver For Linux 5.11 Has Many Improvements
Of the numerous MSM DRM changes for Linux 5.11, there are two prominent changes worth mentioning:
- Support for using the "System Cache" or Last Level Cache (LLC) as it's also known. The System Cache is a layer of caching for non-coherent devices that sits before the DDR. Enabling the System Cache / LLC for MSM DRM was found to improve the glmark2 graphics performance as a reference point by about 10%.
- GPU cooling support by registering the GPU as a DEVFREQ cooling device so it can be handled by the Linux thermal framework.
More details on the MSM DRM changes ready for Linux 5.11 via dri-devel.