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GART表

ACE power gating

  1. three register:gating ctrl、wait count、status show
  2. ctrl target:hw(3D0/L2/VID/VPP)、sw(add 3D)
  3. ctrl logic: hw first and will recover sw
  4. ctrl case: atuo->sw <engine idle, auto enable, sw enbale, disable auto> due to auto first. sw->auto <sw to wanna mode, auto enable , sw disable> due to escape step signal

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