SQ_DYN_GPR_CNTL_PS_FLUSH_REQ
WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0);
case SQ_DYN_GPR_CNTL_PS_FLUSH_REQ:
WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);