[RFC] drm/amd/display: add SI support to AMD DC

[sylvain.bertrand at gmail.com]

On Mon, Oct 15, 2018 at 07:28:57AM +0200, Mauro Rossi wrote:
> dpm for SI is available, while powerplay for SI is not, but
> display/amdgpu_dm uses some powerplay calls, where get_static_clock
> functions not available and the *ERROR* DM_PPLIB is due to missing handling
> in powerplay

I though powerplay was just more power states for the dpm state machines to
play with. I recall parsing ATOMBIOS pplay tables for records of (voltages/clocks
frequencies).

Maybe the future is to trust the OS kernel and perform all "low speed" 3D asic
functions there and keep only high speed 3D operations in the asic.

-- 
Sylvain