NV_CIO_CRE_HCUR_ADDR2_INDEX
regp->CRTC[NV_CIO_CRE_HCUR_ADDR2_INDEX] = offset >> 24;
crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
rd_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
wr_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);