GFX PG for Stoney/Carrizo and UVD static PG for Carrizo
Tom St Denis
tstdenis82 at gmail.com
Thu Jul 21 17:18:44 UTC 2016
These patches re-enable GFX PG on Stoney and Carrizo. I've found
that AMD_PG_SUPPORT_CP and AMD_PG_SUPPORT_RLC_SMU_HS are both buggy
so they are disabled. RLC_SMU_HS results in early system hangs
whereas CP powergating results in harder to trigger system hangs.
With both disabled I've been able to stress test GFX without hangs.
The UVD PG is only enabled if powerplay is disabled. Tested by
sampling with the debug tool I can see correct behaviour in the
PGFSM TILE registers.
More information about the amd-gfx