IPH_MEM_POWER_DS_EN 778 drivers/gpu/drm/amd/amdgpu/nv.c IPH_MEM_POWER_DS_EN, 0); IPH_MEM_POWER_DS_EN 802 drivers/gpu/drm/amd/amdgpu/nv.c IPH_MEM_POWER_DS_EN, enable);