CRTC_V_TOTAL_DISP
aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total);
crtc.v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
crtc->v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
crtc->shadow_v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_tot_disp, par);
aty_st_le32(CRTC_V_TOTAL_DISP, crtc->shadow_v_tot_disp, par);
save->crtc_v_total_disp = INREG(CRTC_V_TOTAL_DISP);
OUTREG(CRTC_V_TOTAL_DISP, mode->crtc_v_total_disp);
vTotal = ((INREG(CRTC_V_TOTAL_DISP) & 0x3ff) + 1);
OUTREG(CRTC_V_TOTAL_DISP, 0x03ff0429);