32 	struct pci_config_window *cfg;  in pci_ecam_create()  local
40 	cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);  in pci_ecam_create()
41 	if (!cfg)  in pci_ecam_create()
48 	cfg->parent = dev;  in pci_ecam_create()
49 	cfg->ops = ops;  in pci_ecam_create()
50 	cfg->busr.start = busr->start;  in pci_ecam_create()
51 	cfg->busr.end = busr->end;  in pci_ecam_create()
52 	cfg->busr.flags = IORESOURCE_BUS;  in pci_ecam_create()
53 	cfg->bus_shift = bus_shift;  in pci_ecam_create()
54 	bus_range = resource_size(&cfg->busr);  in pci_ecam_create()
58 		resource_set_size(&cfg->busr, bus_range);  in pci_ecam_create()
60 			 cfgres, &cfg->busr, busr);  in pci_ecam_create()
64 	cfg->res.start = cfgres->start;  in pci_ecam_create()
65 	cfg->res.end = cfgres->end;  in pci_ecam_create()
66 	cfg->res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;  in pci_ecam_create()
67 	cfg->res.name = "PCI ECAM";  in pci_ecam_create()
69 	conflict = request_resource_conflict(&iomem_resource, &cfg->res);  in pci_ecam_create()
73 			&cfg->res, conflict->name, conflict);  in pci_ecam_create()
78 		cfg->winp = kcalloc(bus_range, sizeof(*cfg->winp), GFP_KERNEL);  in pci_ecam_create()
79 		if (!cfg->winp)  in pci_ecam_create()
82 		cfg->win = pci_remap_cfgspace(cfgres->start, bus_range * bsz);  in pci_ecam_create()
83 		if (!cfg->win)  in pci_ecam_create()
87 	cfg->priv = dev_get_drvdata(dev);  in pci_ecam_create()
90 		err = ops->init(cfg);  in pci_ecam_create()
94 	dev_info(dev, "ECAM at %pR for %pR\n", &cfg->res, &cfg->busr);  in pci_ecam_create()
95 	return cfg;  in pci_ecam_create()
102 	pci_ecam_free(cfg);  in pci_ecam_create()
107 void pci_ecam_free(struct pci_config_window *cfg)  in pci_ecam_free()  argument
112 		if (cfg->winp) {  in pci_ecam_free()
113 			for (i = 0; i < resource_size(&cfg->busr); i++)  in pci_ecam_free()
114 				if (cfg->winp[i])  in pci_ecam_free()
115 					iounmap(cfg->winp[i]);  in pci_ecam_free()
116 			kfree(cfg->winp);  in pci_ecam_free()
119 		if (cfg->win)  in pci_ecam_free()
120 			iounmap(cfg->win);  in pci_ecam_free()
122 	if (cfg->res.parent)  in pci_ecam_free()
123 		release_resource(&cfg->res);  in pci_ecam_free()
124 	kfree(cfg);  in pci_ecam_free()
130 	struct pci_config_window *cfg = bus->sysdata;  in pci_ecam_add_bus()  local
131 	unsigned int bsz = 1 << cfg->bus_shift;  in pci_ecam_add_bus()
138 	if (busn < cfg->busr.start || busn > cfg->busr.end)  in pci_ecam_add_bus()
141 	busn -= cfg->busr.start;  in pci_ecam_add_bus()
142 	start = cfg->res.start + busn * bsz;  in pci_ecam_add_bus()
144 	cfg->winp[busn] = pci_remap_cfgspace(start, bsz);  in pci_ecam_add_bus()
145 	if (!cfg->winp[busn])  in pci_ecam_add_bus()
153 	struct pci_config_window *cfg = bus->sysdata;  in pci_ecam_remove_bus()  local
156 	if (!per_bus_mapping || busn < cfg->busr.start || busn > cfg->busr.end)  in pci_ecam_remove_bus()
159 	busn -= cfg->busr.start;  in pci_ecam_remove_bus()
160 	if (cfg->winp[busn]) {  in pci_ecam_remove_bus()
161 		iounmap(cfg->winp[busn]);  in pci_ecam_remove_bus()
162 		cfg->winp[busn] = NULL;  in pci_ecam_remove_bus()
172 	struct pci_config_window *cfg = bus->sysdata;  in pci_ecam_map_bus()  local
173 	unsigned int bus_shift = cfg->ops->bus_shift;  in pci_ecam_map_bus()
174 	unsigned int devfn_shift = cfg->ops->bus_shift - 8;  in pci_ecam_map_bus()
179 	if (busn < cfg->busr.start || busn > cfg->busr.end)  in pci_ecam_map_bus()
182 	busn -= cfg->busr.start;  in pci_ecam_map_bus()
184 		base = cfg->winp[busn];  in pci_ecam_map_bus()
187 		base = cfg->win;  in pci_ecam_map_bus()
189 	if (cfg->ops->bus_shift) {  in pci_ecam_map_bus()