RADEON_CRTC2_EN
if (!(RREG32(RADEON_CRTC2_GEN_CNTL) & RADEON_CRTC2_EN))
((crtc2_gen_cntl & ~RADEON_CRTC2_EN) |
WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask));
WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask));
crtc2_gen_cntl |= RADEON_CRTC2_EN;
WREG32(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_EN |