38 	/* SiS 761 does not support AGP cards, use PCI mode */
44 nvkm_agp_fini(struct nvkm_pci *pci)  in nvkm_agp_fini()  argument
46 	if (pci->agp.acquired) {  in nvkm_agp_fini()
47 		agp_backend_release(pci->agp.bridge);  in nvkm_agp_fini()
48 		pci->agp.acquired = false;  in nvkm_agp_fini()
56 nvkm_agp_preinit(struct nvkm_pci *pci)  in nvkm_agp_preinit()  argument
58 	struct nvkm_device *device = pci->subdev.device;  in nvkm_agp_preinit()
59 	u32 mode = nvkm_pci_rd32(pci, 0x004c);  in nvkm_agp_preinit()
66 	if ((mode | pci->agp.mode) & PCI_AGP_COMMAND_FW) {  in nvkm_agp_preinit()
67 		mode = pci->agp.mode & ~PCI_AGP_COMMAND_FW;  in nvkm_agp_preinit()
68 		agp_enable(pci->agp.bridge, mode);  in nvkm_agp_preinit()
72 	save[0] = nvkm_pci_rd32(pci, 0x0004);  in nvkm_agp_preinit()
73 	nvkm_pci_wr32(pci, 0x0004, save[0] & ~0x00000004);  in nvkm_agp_preinit()
74 	nvkm_pci_wr32(pci, 0x004c, 0x00000000);  in nvkm_agp_preinit()
81 	nvkm_pci_wr32(pci, 0x0004, save[0]);  in nvkm_agp_preinit()
85 nvkm_agp_init(struct nvkm_pci *pci)  in nvkm_agp_init()  argument
87 	if (!agp_backend_acquire(pci->pdev)) {  in nvkm_agp_init()
88 		nvkm_error(&pci->subdev, "failed to acquire agp\n");  in nvkm_agp_init()
92 	agp_enable(pci->agp.bridge, pci->agp.mode);  in nvkm_agp_init()
93 	pci->agp.acquired = true;  in nvkm_agp_init()
98 nvkm_agp_dtor(struct nvkm_pci *pci)  in nvkm_agp_dtor()  argument
100 	arch_phys_wc_del(pci->agp.mtrr);  in nvkm_agp_dtor()
104 nvkm_agp_ctor(struct nvkm_pci *pci)  in nvkm_agp_ctor()  argument
107 	struct nvkm_subdev *subdev = &pci->subdev;  in nvkm_agp_ctor()
125 	if (!(pci->agp.bridge = agp_backend_acquire(pci->pdev))) {  in nvkm_agp_ctor()
129 	agp_copy_info(pci->agp.bridge, &info);  in nvkm_agp_ctor()
130 	agp_backend_release(pci->agp.bridge);  in nvkm_agp_ctor()
132 	pci->agp.mode = info.mode;  in nvkm_agp_ctor()
133 	pci->agp.base = info.aper_base;  in nvkm_agp_ctor()
134 	pci->agp.size = info.aper_size * 1024 * 1024;  in nvkm_agp_ctor()
135 	pci->agp.cma  = info.cant_use_aperture;  in nvkm_agp_ctor()
136 	pci->agp.mtrr = -1;  in nvkm_agp_ctor()
143 		    pci->pdev->vendor == quirk->chip_vendor) &&  in nvkm_agp_ctor()
145 		    pci->pdev->device == quirk->chip_device)) {  in nvkm_agp_ctor()
157 		if (pci->agp.mode & 0x00000008)  in nvkm_agp_ctor()
159 		pci->agp.mode &= ~0x00000007;  in nvkm_agp_ctor()
160 		pci->agp.mode |= (mode & 0x7);  in nvkm_agp_ctor()
163 		pci->agp.bridge = NULL;  in nvkm_agp_ctor()
171 		pci->agp.mode &= ~PCI_AGP_COMMAND_FW;  in nvkm_agp_ctor()
173 	pci->agp.mtrr = arch_phys_wc_add(pci->agp.base, pci->agp.size);  in nvkm_agp_ctor()