478 static void agp_v2_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_agpstat)  in agp_v2_parse_one()  argument
498 	switch (*bridge_agpstat & 7) {  in agp_v2_parse_one()
500 		*bridge_agpstat |= (AGPSTAT2_2X | AGPSTAT2_1X);  in agp_v2_parse_one()
505 		*bridge_agpstat |= AGPSTAT2_1X;  in agp_v2_parse_one()
536 …if (!((*bridge_agpstat & AGPSTAT_SBA) && (*vga_agpstat & AGPSTAT_SBA) && (*requested_mode & AGPSTA…  in agp_v2_parse_one()
537 		*bridge_agpstat &= ~AGPSTAT_SBA;  in agp_v2_parse_one()
540 …if (!((*bridge_agpstat & AGPSTAT2_4X) && (*vga_agpstat & AGPSTAT2_4X) && (*requested_mode & AGPSTA…  in agp_v2_parse_one()
541 		*bridge_agpstat &= ~AGPSTAT2_4X;  in agp_v2_parse_one()
543 …if (!((*bridge_agpstat & AGPSTAT2_2X) && (*vga_agpstat & AGPSTAT2_2X) && (*requested_mode & AGPSTA…  in agp_v2_parse_one()
544 		*bridge_agpstat &= ~AGPSTAT2_2X;  in agp_v2_parse_one()
546 …if (!((*bridge_agpstat & AGPSTAT2_1X) && (*vga_agpstat & AGPSTAT2_1X) && (*requested_mode & AGPSTA…  in agp_v2_parse_one()
547 		*bridge_agpstat &= ~AGPSTAT2_1X;  in agp_v2_parse_one()
550 	if (*bridge_agpstat & AGPSTAT2_4X)  in agp_v2_parse_one()
551 		*bridge_agpstat &= ~(AGPSTAT2_1X | AGPSTAT2_2X);	/* 4X */  in agp_v2_parse_one()
553 	if (*bridge_agpstat & AGPSTAT2_2X)  in agp_v2_parse_one()
554 		*bridge_agpstat &= ~(AGPSTAT2_1X | AGPSTAT2_4X);	/* 2X */  in agp_v2_parse_one()
556 	if (*bridge_agpstat & AGPSTAT2_1X)  in agp_v2_parse_one()
557 		*bridge_agpstat &= ~(AGPSTAT2_2X | AGPSTAT2_4X);	/* 1X */  in agp_v2_parse_one()
561 		*bridge_agpstat &= ~AGPSTAT_FW;  in agp_v2_parse_one()
564 		*bridge_agpstat &= ~AGPSTAT_SBA;  in agp_v2_parse_one()
567 		*bridge_agpstat &= ~(AGPSTAT2_2X | AGPSTAT2_4X);  in agp_v2_parse_one()
568 		*bridge_agpstat |= AGPSTAT2_1X;  in agp_v2_parse_one()
572 	if (*bridge_agpstat & AGPSTAT2_1X)  in agp_v2_parse_one()
573 		*bridge_agpstat &= ~AGPSTAT_FW;  in agp_v2_parse_one()
581 static void agp_v3_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_agpstat)  in agp_v3_parse_one()  argument
583 	u32 origbridge=*bridge_agpstat, origvga=*vga_agpstat;  in agp_v3_parse_one()
605 	*bridge_agpstat = ((*bridge_agpstat & ~AGPSTAT_ARQSZ) |  in agp_v3_parse_one()
606 		max_t(u32,(*bridge_agpstat & AGPSTAT_ARQSZ),(*vga_agpstat & AGPSTAT_ARQSZ)));  in agp_v3_parse_one()
610 	*bridge_agpstat = ((*bridge_agpstat & ~AGPSTAT_CAL_MASK) |  in agp_v3_parse_one()
611 		min_t(u32,(*bridge_agpstat & AGPSTAT_CAL_MASK),(*vga_agpstat & AGPSTAT_CAL_MASK)));  in agp_v3_parse_one()
614 	*bridge_agpstat |= AGPSTAT_SBA;  in agp_v3_parse_one()
646 		if (!(*bridge_agpstat & AGPSTAT3_8X)) {  in agp_v3_parse_one()
647 			*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
648 			*bridge_agpstat |= AGPSTAT3_4X;  in agp_v3_parse_one()
653 			*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
654 			*bridge_agpstat |= AGPSTAT3_4X;  in agp_v3_parse_one()
659 		*bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
663 		*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
664 		*bridge_agpstat |= AGPSTAT3_4X;  in agp_v3_parse_one()
674 		if ((*bridge_agpstat & AGPSTAT3_8X) && (*vga_agpstat & AGPSTAT3_8X)) {  in agp_v3_parse_one()
677 			*bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
681 			if (!(*bridge_agpstat & AGPSTAT3_8X)) {  in agp_v3_parse_one()
683 					*bridge_agpstat, origbridge);  in agp_v3_parse_one()
684 				*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);  in agp_v3_parse_one()
685 				*bridge_agpstat |= AGPSTAT3_4X;  in agp_v3_parse_one()
699 		*bridge_agpstat &= ~AGPSTAT_FW;  in agp_v3_parse_one()
702 		*bridge_agpstat &= ~AGPSTAT_SBA;  in agp_v3_parse_one()
705 		*bridge_agpstat &= ~(AGPSTAT2_2X | AGPSTAT2_4X);  in agp_v3_parse_one()
706 		*bridge_agpstat |= AGPSTAT2_1X;  in agp_v3_parse_one()
720 …2 agp_collect_device_status(struct agp_bridge_data *bridge, u32 requested_mode, u32 bridge_agpstat)  in agp_collect_device_status()  argument
744 	bridge_agpstat = ((bridge_agpstat & ~AGPSTAT_RQ_DEPTH) |  in agp_collect_device_status()
746 		 min_t(u32, (bridge_agpstat & AGPSTAT_RQ_DEPTH), (vga_agpstat & AGPSTAT_RQ_DEPTH))));  in agp_collect_device_status()
749 	if (!((bridge_agpstat & AGPSTAT_FW) &&  in agp_collect_device_status()
752 		bridge_agpstat &= ~AGPSTAT_FW;  in agp_collect_device_status()
756 		agp_v3_parse_one(&requested_mode, &bridge_agpstat, &vga_agpstat);  in agp_collect_device_status()
758 		agp_v2_parse_one(&requested_mode, &bridge_agpstat, &vga_agpstat);  in agp_collect_device_status()
761 	return bridge_agpstat;  in agp_collect_device_status()
766 void agp_device_command(u32 bridge_agpstat, bool agp_v3)  in agp_device_command()  argument
771 	mode = bridge_agpstat & 0x7;  in agp_device_command()
782 		pci_write_config_dword(device, agp + PCI_AGP_COMMAND, bridge_agpstat);  in agp_device_command()
805 	u32 bridge_agpstat, temp;  in agp_generic_enable()  local
813 		      agp_bridge->capndx + PCI_AGP_STATUS, &bridge_agpstat);  in agp_generic_enable()
815 	bridge_agpstat = agp_collect_device_status(agp_bridge, requested_mode, bridge_agpstat);  in agp_generic_enable()
816 	if (bridge_agpstat == 0)  in agp_generic_enable()
820 	bridge_agpstat |= AGPSTAT_AGP_ENABLE;  in agp_generic_enable()
828 			agp_device_command(bridge_agpstat, true);  in agp_generic_enable()
832 		    bridge_agpstat &= ~(7<<10) ;  in agp_generic_enable()
844 	agp_device_command(bridge_agpstat, false);  in agp_generic_enable()