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    drm/msm: gpu: Add support for the GPMU · 2401a008
    Jordan Crouse 提交于
    Most 5XX targets have GPMU (Graphics Power Management Unit) that
    handles a lot of the heavy lifting for power management including
    thermal and limits management and dynamic power collapse. While
    the GPMU itself is optional, it is usually nessesary to hit
    aggressive power targets.
    
    The GPMU firmware needs to be loaded into the GPMU at init time via a
    shared hardware block of registers. Using the GPU to write the microcode
    is more efficient than using the CPU so at first load create an indirect
    buffer that can be executed during subsequent initalization sequences.
    
    After loading the GPMU gets initalized through a shared register
    interface and then we mostly get out of its way and let it do
    its thing.
    Signed-off-by: NJordan Crouse <jcrouse@codeaurora.org>
    Signed-off-by: NRob Clark <robdclark@gmail.com>
    2401a008
adreno_gpu.h 9.7 KB