UPLL_BYPASS_CNTL
WREG32_P(GFX_MACRO_BYPASS_CNTL, UPLL_BYPASS_CNTL,
~UPLL_BYPASS_CNTL);
WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~UPLL_BYPASS_CNTL);