29 void pci_update_resource(struct pci_dev *dev, int resno)  in pci_update_resource()  argument
37 	struct resource *res = dev->resource + resno;  in pci_update_resource()
39 	if (dev->is_virtfn) {  in pci_update_resource()
40 		dev_warn(&dev->dev, "can't update VF BAR%d\n", resno);  in pci_update_resource()
62 	pcibios_resource_to_bus(dev->bus, &region, res);  in pci_update_resource()
70 	reg = pci_resource_bar(dev, resno, &type);  in pci_update_resource()
84 	disable = (res->flags & IORESOURCE_MEM_64) && !dev->mmio_always_on;  in pci_update_resource()
86 		pci_read_config_word(dev, PCI_COMMAND, &cmd);  in pci_update_resource()
87 		pci_write_config_word(dev, PCI_COMMAND,  in pci_update_resource()
91 	pci_write_config_dword(dev, reg, new);  in pci_update_resource()
92 	pci_read_config_dword(dev, reg, &check);  in pci_update_resource()
95 		dev_err(&dev->dev, "BAR %d: error updating (%#08x != %#08x)\n",  in pci_update_resource()
101 		pci_write_config_dword(dev, reg + 4, new);  in pci_update_resource()
102 		pci_read_config_dword(dev, reg + 4, &check);  in pci_update_resource()
104 			dev_err(&dev->dev, "BAR %d: error updating (high %#08x != %#08x)\n",  in pci_update_resource()
110 		pci_write_config_word(dev, PCI_COMMAND, cmd);  in pci_update_resource()
113 int pci_claim_resource(struct pci_dev *dev, int resource)  in pci_claim_resource()  argument
115 	struct resource *res = &dev->resource[resource];  in pci_claim_resource()
119 		dev_info(&dev->dev, "can't claim BAR %d %pR: no address assigned\n",  in pci_claim_resource()
124 	root = pci_find_parent_resource(dev, res);  in pci_claim_resource()
126 		dev_info(&dev->dev, "can't claim BAR %d %pR: no compatible bridge window\n",  in pci_claim_resource()
134 		dev_info(&dev->dev, "can't claim BAR %d %pR: address conflict with %s %pR\n",  in pci_claim_resource()
144 void pci_disable_bridge_window(struct pci_dev *dev)  in pci_disable_bridge_window()  argument
146 	dev_info(&dev->dev, "disabling bridge mem windows\n");  in pci_disable_bridge_window()
149 	pci_write_config_dword(dev, PCI_MEMORY_BASE, 0x0000fff0);  in pci_disable_bridge_window()
152 	pci_write_config_dword(dev, PCI_PREF_LIMIT_UPPER32, 0);  in pci_disable_bridge_window()
153 	pci_write_config_dword(dev, PCI_PREF_MEMORY_BASE, 0x0000fff0);  in pci_disable_bridge_window()
154 	pci_write_config_dword(dev, PCI_PREF_BASE_UPPER32, 0xffffffff);  in pci_disable_bridge_window()
166 resource_size_t __weak pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx)  in pcibios_retrieve_fw_addr()  argument
171 static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev,  in pci_revert_fw_address()  argument
177 	fw_addr = pcibios_retrieve_fw_addr(dev, resno);  in pci_revert_fw_address()
187 	root = pci_find_parent_resource(dev, res);  in pci_revert_fw_address()
195 	dev_info(&dev->dev, "BAR %d: trying firmware assignment %pR\n",  in pci_revert_fw_address()
199 		dev_info(&dev->dev, "BAR %d: %pR conflicts with %s %pR\n",  in pci_revert_fw_address()
209 static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,  in __pci_assign_resource()  argument
212 	struct resource *res = dev->resource + resno;  in __pci_assign_resource()
227 				     pcibios_align_resource, dev);  in __pci_assign_resource()
239 					     pcibios_align_resource, dev);  in __pci_assign_resource()
252 					     pcibios_align_resource, dev);  in __pci_assign_resource()
257 static int _pci_assign_resource(struct pci_dev *dev, int resno,  in _pci_assign_resource()  argument
263 	bus = dev->bus;  in _pci_assign_resource()
264 	while ((ret = __pci_assign_resource(bus, dev, resno, size, min_align))) {  in _pci_assign_resource()
273 int pci_assign_resource(struct pci_dev *dev, int resno)  in pci_assign_resource()  argument
275 	struct resource *res = dev->resource + resno;  in pci_assign_resource()
280 	align = pci_resource_alignment(dev, res);  in pci_assign_resource()
282 		dev_info(&dev->dev, "BAR %d: can't assign %pR (bogus alignment)\n",  in pci_assign_resource()
288 	ret = _pci_assign_resource(dev, resno, size, align);  in pci_assign_resource()
296 		dev_info(&dev->dev, "BAR %d: no space for %pR\n", resno, res);  in pci_assign_resource()
297 		ret = pci_revert_fw_address(res, dev, resno, size);  in pci_assign_resource()
301 		dev_info(&dev->dev, "BAR %d: failed to assign %pR\n", resno,  in pci_assign_resource()
308 	dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res);  in pci_assign_resource()
310 		pci_update_resource(dev, resno);  in pci_assign_resource()
316 int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsize,  in pci_reassign_resource()  argument
319 	struct resource *res = dev->resource + resno;  in pci_reassign_resource()
327 		dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR\n",  in pci_reassign_resource()
334 	ret = _pci_assign_resource(dev, resno, new_size, min_align);  in pci_reassign_resource()
337 		dev_info(&dev->dev, "BAR %d: %pR (failed to expand by %#llx)\n",  in pci_reassign_resource()
344 	dev_info(&dev->dev, "BAR %d: reassigned %pR (expanded by %#llx)\n",  in pci_reassign_resource()
347 		pci_update_resource(dev, resno);  in pci_reassign_resource()
352 int pci_enable_resources(struct pci_dev *dev, int mask)  in pci_enable_resources()  argument
358 	pci_read_config_word(dev, PCI_COMMAND, &cmd);  in pci_enable_resources()
365 		r = &dev->resource[i];  in pci_enable_resources()
374 			dev_err(&dev->dev, "can't enable device: BAR %d %pR not assigned\n",  in pci_enable_resources()
380 			dev_err(&dev->dev, "can't enable device: BAR %d %pR not claimed\n",  in pci_enable_resources()
392 		dev_info(&dev->dev, "enabling device (%04x -> %04x)\n",  in pci_enable_resources()
394 		pci_write_config_word(dev, PCI_COMMAND, cmd);  in pci_enable_resources()