1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
76 		return ("VIA 8763 (P4X600) host to PCI bridge");  in agp_via_match()
78 		return ("VIA PM800/PN800/PM880/PN880 host to PCI bridge");  in agp_via_match()
80 		return ("VIA KT880 host to PCI bridge");  in agp_via_match()
82 		return ("VIA 3296 (P4M800) host to PCI bridge");  in agp_via_match()
84 		return ("VIA 82C8363 (Apollo KT133x/KM133) host to PCI bridge");  in agp_via_match()
86 		return ("VIA 3314 (P4M800CE) host to PCI bridge");  in agp_via_match()
88 		return ("VIA VT3324 (CX700) host to PCI bridge");  in agp_via_match()
90 		return ("VIA 3327 (P4M890) host to PCI bridge");  in agp_via_match()
92 		return ("VIA 3364 (P4M900) host to PCI bridge");  in agp_via_match()
94 		return ("VIA 8371 (Apollo KX133) host to PCI bridge");  in agp_via_match()
96 		return ("VIA 8501 (Apollo MVP4) host to PCI bridge");  in agp_via_match()
98 		return ("VIA 82C597 (Apollo VP3) host to PCI bridge");  in agp_via_match()
100 		return ("VIA 82C598 (Apollo MVP3) host to PCI bridge");  in agp_via_match()
102 		return ("VIA 8601 (Apollo ProMedia/PLE133Ta) host to PCI bridge");  in agp_via_match()
104 		return ("VIA 82C694X (Apollo Pro 133A) host to PCI bridge");  in agp_via_match()
106 		return ("VIA 82C691 (Apollo Pro) host to PCI bridge");  in agp_via_match()
108 		return ("VIA 8633 (Pro 266) host to PCI bridge");  in agp_via_match()
110 		return ("VIA 8367 (KT266/KY266x/KT333) host to PCI bridge");  in agp_via_match()
112 		return ("VIA 8653 (Pro266T) host to PCI bridge");  in agp_via_match()
114 		return ("VIA 8361 (KLE133) host to PCI bridge");  in agp_via_match()
116 		return ("VIA XM266 (PM266/KM266) host to PCI bridge");  in agp_via_match()
118 		return ("VIA 862x (CLE266) host to PCI bridge");  in agp_via_match()
120 		return ("VIA 8753 (P4X266) host to PCI bridge");  in agp_via_match()
122 		return ("VIA 8703 (P4M266x/P4N266) host to PCI bridge");  in agp_via_match()
124 		return ("VIA XN266 (Apollo Pro266) host to PCI bridge");  in agp_via_match()
126 		return ("VIA 8754 (PT800) host to PCI bridge");  in agp_via_match()
128 		return ("VIA 8377 (Apollo KT400/KT400A/KT600) host to PCI bridge");  in agp_via_match()
130 		return ("VIA 8235/8237 (Apollo KM400/KM400A) host to PCI bridge");  in agp_via_match()
132 		return ("VIA 8783 (PT890) host to PCI bridge");  in agp_via_match()
134 		return ("VIA PT880 host to PCI bridge");  in agp_via_match()
136 		return ("VIA VT83xx/VT87xx/KTxxx/Px8xx host to PCI bridge");  in agp_via_match()
167 	sc->regs = via_v2_regs;  in agp_via_attach()
174 			sc->regs = via_v3_regs;  in agp_via_attach()
181 	sc->initial_aperture = AGP_GET_APERTURE(dev);  in agp_via_attach()
197 	sc->gatt = gatt;  in agp_via_attach()
199 	if (sc->regs == via_v2_regs) {  in agp_via_attach()
201 		pci_write_config(dev, sc->regs[REG_ATTBASE], gatt->ag_physical | 3, 4);  in agp_via_attach()
203 		/* Enable the aperture. */  in agp_via_attach()
204 		pci_write_config(dev, sc->regs[REG_GARTCTRL], 0x0f, 4);  in agp_via_attach()
209 		pci_write_config(dev, sc->regs[REG_ATTBASE], gatt->ag_physical, 4);  in agp_via_attach()
211 		/* Enable the aperture. */  in agp_via_attach()
212 		gartctrl = pci_read_config(dev, sc->regs[REG_GARTCTRL], 4);  in agp_via_attach()
213 		pci_write_config(dev, sc->regs[REG_GARTCTRL], gartctrl | (3 << 7), 4);  in agp_via_attach()
217 		sc->initial_aperture / 1024 / 1024);  in agp_via_attach()
229 	pci_write_config(dev, sc->regs[REG_GARTCTRL], 0, 4);  in agp_via_detach()
230 	pci_write_config(dev, sc->regs[REG_ATTBASE], 0, 4);  in agp_via_detach()
231 	AGP_SET_APERTURE(dev, sc->initial_aperture);  in agp_via_detach()
232 	agp_free_gatt(sc->gatt);  in agp_via_detach()
244 	if (sc->regs == via_v2_regs) {  in agp_via_get_aperture()
245 		apsize = pci_read_config(dev, sc->regs[REG_APSIZE], 1);  in agp_via_get_aperture()
254 		return (((apsize ^ 0xff) << 20) | ((1 << 20) - 1)) + 1;  in agp_via_get_aperture()
256 		apsize = pci_read_config(dev, sc->regs[REG_APSIZE], 2) & 0xfff;  in agp_via_get_aperture()
280 			    pci_read_config(dev, sc->regs[REG_APSIZE], 2));  in agp_via_get_aperture()
292 	if (sc->regs == via_v2_regs) {  in agp_via_set_aperture()
296 		apsize = ((aperture - 1) >> 20) ^ 0xff;  in agp_via_set_aperture()
301 		if ((((apsize ^ 0xff) << 20) | ((1 << 20) - 1)) + 1 != aperture)  in agp_via_set_aperture()
304 		pci_write_config(dev, sc->regs[REG_APSIZE], apsize, 1);  in agp_via_set_aperture()
342 		val = pci_read_config(dev, sc->regs[REG_APSIZE], 2);  in agp_via_set_aperture()
343 		pci_write_config(dev, sc->regs[REG_APSIZE],   in agp_via_set_aperture()
354 	if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))  in agp_via_bind_page()
357 	sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;  in agp_via_bind_page()
366 	if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))  in agp_via_unbind_page()
369 	sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;  in agp_via_unbind_page()
379 	if (sc->regs == via_v2_regs) {  in agp_via_flush_tlb()
380 		pci_write_config(dev, sc->regs[REG_GARTCTRL], 0x8f, 4);  in agp_via_flush_tlb()
381 		pci_write_config(dev, sc->regs[REG_GARTCTRL], 0x0f, 4);  in agp_via_flush_tlb()
383 		gartctrl = pci_read_config(dev, sc->regs[REG_GARTCTRL], 4);  in agp_via_flush_tlb()
384 		pci_write_config(dev, sc->regs[REG_GARTCTRL], gartctrl &  in agp_via_flush_tlb()
386 		pci_write_config(dev, sc->regs[REG_GARTCTRL], gartctrl, 4);  in agp_via_flush_tlb()