690 	bpp = info->var.bits_per_pixel;  in riva_load_video_mode()
691 	if (bpp == 16 && info->var.green.length == 5)  in riva_load_video_mode()
693 	width = info->var.xres_virtual;  in riva_load_video_mode()
694 	hDisplaySize = info->var.xres;  in riva_load_video_mode()
696 	hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;  in riva_load_video_mode()
697 	hEnd = (hDisplaySize + info->var.right_margin +  in riva_load_video_mode()
698 		info->var.hsync_len) / 8 - 1;  in riva_load_video_mode()
699 	hTotal = (hDisplaySize + info->var.right_margin +  in riva_load_video_mode()
700 		  info->var.hsync_len + info->var.left_margin) / 8 - 5;  in riva_load_video_mode()
704 	height = info->var.yres_virtual;  in riva_load_video_mode()
705 	vDisplay = info->var.yres - 1;  in riva_load_video_mode()
706 	vStart = info->var.yres + info->var.lower_margin - 1;  in riva_load_video_mode()
707 	vEnd = info->var.yres + info->var.lower_margin +  in riva_load_video_mode()
708 	       info->var.vsync_len - 1;  in riva_load_video_mode()
709 	vTotal = info->var.yres + info->var.lower_margin +  in riva_load_video_mode()
710 		 info->var.vsync_len + info->var.upper_margin + 2;  in riva_load_video_mode()
713 	dotClock = 1000000000 / info->var.pixclock;  in riva_load_video_mode()
717 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)  in riva_load_video_mode()
769 	if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {  in riva_load_video_mode()
779 	if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)  in riva_load_video_mode()
783 	if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)  in riva_load_video_mode()
831 static void riva_update_var(struct fb_var_screeninfo *var,  in riva_update_var()  argument
835 	var->xres = var->xres_virtual = modedb->xres;  in riva_update_var()
836 	var->yres = modedb->yres;  in riva_update_var()
837         if (var->yres_virtual < var->yres)  in riva_update_var()
838 	    var->yres_virtual = var->yres;  in riva_update_var()
839         var->xoffset = var->yoffset = 0;  in riva_update_var()
840         var->pixclock = modedb->pixclock;  in riva_update_var()
841         var->left_margin = modedb->left_margin;  in riva_update_var()
842         var->right_margin = modedb->right_margin;  in riva_update_var()
843         var->upper_margin = modedb->upper_margin;  in riva_update_var()
844         var->lower_margin = modedb->lower_margin;  in riva_update_var()
845         var->hsync_len = modedb->hsync_len;  in riva_update_var()
846         var->vsync_len = modedb->vsync_len;  in riva_update_var()
847         var->sync = modedb->sync;  in riva_update_var()
848         var->vmode = modedb->vmode;  in riva_update_var()
870 			      struct fb_var_screeninfo *var,  in rivafb_do_maximize()  argument
887 	if (var->xres_virtual == -1 && var->yres_virtual == -1) {  in rivafb_do_maximize()
901 		var->xres_virtual = modes[i].xres;  in rivafb_do_maximize()
902 		var->yres_virtual = modes[i].yres;  in rivafb_do_maximize()
906 		       var->xres_virtual, var->yres_virtual);  in rivafb_do_maximize()
907 	} else if (var->xres_virtual == -1) {  in rivafb_do_maximize()
908 		var->xres_virtual = (info->fix.smem_len * den /  in rivafb_do_maximize()
909 			(nom * var->yres_virtual)) & ~15;  in rivafb_do_maximize()
911 		       "setting virtual X resolution to %d\n", var->xres_virtual);  in rivafb_do_maximize()
912 	} else if (var->yres_virtual == -1) {  in rivafb_do_maximize()
913 		var->xres_virtual = (var->xres_virtual + 15) & ~15;  in rivafb_do_maximize()
914 		var->yres_virtual = info->fix.smem_len * den /  in rivafb_do_maximize()
915 			(nom * var->xres_virtual);  in rivafb_do_maximize()
917 		       "setting virtual Y resolution to %d\n", var->yres_virtual);  in rivafb_do_maximize()
919 		var->xres_virtual = (var->xres_virtual + 15) & ~15;  in rivafb_do_maximize()
920 		if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {  in rivafb_do_maximize()
923 			       var->xres, var->yres, var->bits_per_pixel);  in rivafb_do_maximize()
929 	if (var->xres_virtual * nom / den >= 8192) {  in rivafb_do_maximize()
932 		       var->xres_virtual, 8192 * den / nom - 16);  in rivafb_do_maximize()
933 		var->xres_virtual = 8192 * den / nom - 16;  in rivafb_do_maximize()
936 	if (var->xres_virtual < var->xres) {  in rivafb_do_maximize()
938 		       "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);  in rivafb_do_maximize()
942 	if (var->yres_virtual < var->yres) {  in rivafb_do_maximize()
944 		       "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);  in rivafb_do_maximize()
947 	if (var->yres_virtual > 0x7fff/nom)  in rivafb_do_maximize()
948 		var->yres_virtual = 0x7fff/nom;  in rivafb_do_maximize()
949 	if (var->xres_virtual > 0x7fff/nom)  in rivafb_do_maximize()
950 		var->xres_virtual = 0x7fff/nom;  in rivafb_do_maximize()
990 		(info->var.xres_virtual & 0xffff) |  in riva_setup_accel()
991 		(info->var.yres_virtual << 16));  in riva_setup_accel()
1009 static int riva_get_cmap_len(const struct fb_var_screeninfo *var)  in riva_get_cmap_len()  argument
1013 	switch (var->green.length) {  in riva_get_cmap_len()
1088 static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)  in rivafb_check_var()  argument
1096 	switch (var->bits_per_pixel) {  in rivafb_check_var()
1098 		var->red.offset = var->green.offset = var->blue.offset = 0;  in rivafb_check_var()
1099 		var->red.length = var->green.length = var->blue.length = 8;  in rivafb_check_var()
1100 		var->bits_per_pixel = 8;  in rivafb_check_var()
1104 		var->green.length = 5;  in rivafb_check_var()
1107 		var->bits_per_pixel = 16;  in rivafb_check_var()
1110 			var->green.length = 5;  in rivafb_check_var()
1111 		if (var->green.length == 5) {  in rivafb_check_var()
1113 			var->red.offset = 10;  in rivafb_check_var()
1114 			var->green.offset = 5;  in rivafb_check_var()
1115 			var->blue.offset = 0;  in rivafb_check_var()
1116 			var->red.length = 5;  in rivafb_check_var()
1117 			var->green.length = 5;  in rivafb_check_var()
1118 			var->blue.length = 5;  in rivafb_check_var()
1121 			var->red.offset = 11;  in rivafb_check_var()
1122 			var->green.offset = 5;  in rivafb_check_var()
1123 			var->blue.offset = 0;  in rivafb_check_var()
1124 			var->red.length = 5;  in rivafb_check_var()
1125 			var->green.length = 6;  in rivafb_check_var()
1126 			var->blue.length = 5;  in rivafb_check_var()
1132 		var->red.length = var->green.length = var->blue.length = 8;  in rivafb_check_var()
1133 		var->bits_per_pixel = 32;  in rivafb_check_var()
1134 		var->red.offset = 16;  in rivafb_check_var()
1135 		var->green.offset = 8;  in rivafb_check_var()
1136 		var->blue.offset = 0;  in rivafb_check_var()
1143 		       var->xres, var->yres, var->bits_per_pixel);  in rivafb_check_var()
1150 		    !info->monspecs.dclkmax || !fb_validate_mode(var, info))  in rivafb_check_var()
1156 		if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))  in rivafb_check_var()
1161 		mode = fb_find_best_mode(var, &info->modelist);  in rivafb_check_var()
1163 			riva_update_var(var, mode);  in rivafb_check_var()
1171 	if (var->xres_virtual < var->xres)  in rivafb_check_var()
1172 		var->xres_virtual = var->xres;  in rivafb_check_var()
1173 	if (var->yres_virtual <= var->yres)  in rivafb_check_var()
1174 		var->yres_virtual = -1;  in rivafb_check_var()
1175 	if (rivafb_do_maximize(info, var, nom, den) < 0)  in rivafb_check_var()
1179 	if (var->xoffset > var->xres_virtual - var->xres)  in rivafb_check_var()
1180 		var->xoffset = var->xres_virtual - var->xres - 1;  in rivafb_check_var()
1182 	if (var->yoffset > var->yres_virtual - var->yres)  in rivafb_check_var()
1183 		var->yoffset = var->yres_virtual - var->yres - 1;  in rivafb_check_var()
1185 	var->red.msb_right =   in rivafb_check_var()
1186 	    var->green.msb_right =  in rivafb_check_var()
1187 	    var->blue.msb_right =  in rivafb_check_var()
1188 	    var->transp.offset = var->transp.length = var->transp.msb_right = 0;  in rivafb_check_var()
1209 	info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));  in rivafb_set_par()
1210 	info->fix.visual = (info->var.bits_per_pixel == 8) ?  in rivafb_set_par()
1236 static int rivafb_pan_display(struct fb_var_screeninfo *var,  in rivafb_pan_display()  argument
1243 	base = var->yoffset * info->fix.line_length + var->xoffset;  in rivafb_pan_display()
1312 	if (regno >= riva_get_cmap_len(&info->var))  in rivafb_setcolreg()
1315 	if (info->var.grayscale) {  in rivafb_setcolreg()
1323 			(regno << info->var.red.offset) |  in rivafb_setcolreg()
1324 			(regno << info->var.green.offset) |  in rivafb_setcolreg()
1325 			(regno << info->var.blue.offset);  in rivafb_setcolreg()
1331 			switch (info->var.bits_per_pixel) {  in rivafb_setcolreg()
1346 	switch (info->var.bits_per_pixel) {  in rivafb_setcolreg()
1352 		if (info->var.green.length == 5) {  in rivafb_setcolreg()
1405 	if (info->var.bits_per_pixel == 8)  in rivafb_fillrect()
1510 	switch (info->var.bits_per_pixel) {  in rivafb_imageblit()
1524 		if (info->var.green.length == 6)  in rivafb_imageblit()
1605 		yy = cursor->image.dy - info->var.yoffset;  in rivafb_cursor()
1606 		xx = cursor->image.dx - info->var.xoffset;  in rivafb_cursor()
1716 	info->var = rivafb_default_var;  in riva_set_fbinfo()
1717 	info->fix.visual = (info->var.bits_per_pixel == 8) ?  in riva_set_fbinfo()
1722 	cmap_len = riva_get_cmap_len(&info->var);  in riva_set_fbinfo()
1729 	info->var.yres_virtual = -1;  in riva_set_fbinfo()
1731 	return (rivafb_check_var(&info->var, info));  in riva_set_fbinfo()
1769 	struct fb_var_screeninfo var;  in riva_get_EDID_i2c()  local
1778 		if (par->EDID && !fb_parse_edid(par->EDID, &var)) {  in riva_get_EDID_i2c()
1789 static void riva_update_default_var(struct fb_var_screeninfo *var,  in riva_update_default_var()  argument
1798 		fb_find_mode(var, info, mode_option,  in riva_update_default_var()
1815 		var->bits_per_pixel = 8;  in riva_update_default_var()
1816 		riva_update_var(var, &modedb);  in riva_update_default_var()
1841 	struct fb_var_screeninfo *var = &rivafb_default_var;  in riva_get_edidinfo()  local
1847 	riva_update_default_var(var, info);  in riva_get_edidinfo()