Lines Matching +full:device +full:- +full:id
1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 1993 -- 1997 Drew Eckhardt, Frederic Potter,
6 * David Mosberger-Tang
7 * Copyright (C) 1997 -- 2000 Martin Mares <mj@ucw.cz>
8 * Copyright (C) 2003 -- 2004 Greg Kroah-Hartman <greg@kroah.com>
20 * pci_for_each_dma_alias - Iterate over DMA aliases for a device
21 * @pdev: starting downstream device
36 * The device may have an explicit alias requester ID for DMA where the in pci_for_each_dma_alias()
46 * If the device is broken and uses an alias requester ID for in pci_for_each_dma_alias()
49 if (unlikely(pdev->dma_alias_mask)) { in pci_for_each_dma_alias()
52 for_each_set_bit(devfn, pdev->dma_alias_mask, MAX_NR_DEVFNS) { in pci_for_each_dma_alias()
53 ret = fn(pdev, PCI_DEVID(pdev->bus->number, devfn), in pci_for_each_dma_alias()
60 for (bus = pdev->bus; !pci_is_root_bus(bus); bus = bus->parent) { in pci_for_each_dma_alias()
64 if (!bus->self) in pci_for_each_dma_alias()
67 tmp = bus->self; in pci_for_each_dma_alias()
70 if (tmp->dev_flags & PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT) in pci_for_each_dma_alias()
74 * PCIe-to-PCI/X bridges alias transactions from downstream in pci_for_each_dma_alias()
76 * PCI/PCI-X Bridge Spec, rev 1.0, sec 2.3). For all cases in pci_for_each_dma_alias()
80 * when the secondary interface is PCI-X). in pci_for_each_dma_alias()
90 PCI_DEVID(tmp->subordinate->number, in pci_for_each_dma_alias()
102 if (tmp->dev_flags & PCI_DEV_FLAG_PCIE_BRIDGE_ALIAS) in pci_for_each_dma_alias()
104 PCI_DEVID(tmp->subordinate->number, in pci_for_each_dma_alias()
121 if (bus->number == busnr) in pci_do_find_bus()
124 list_for_each_entry(tmp, &bus->children, node) { in pci_do_find_bus()
133 * pci_find_bus - locate PCI bus from a given domain and bus number
158 * pci_find_next_bus - begin or continue searching for a PCI bus
163 * @from is not %NULL, searches continue from next device on the
173 n = from ? from->node.next : pci_root_buses.next; in pci_find_next_bus()
182 * pci_get_slot - locate PCI device for a given PCI slot
183 * @bus: PCI bus on which desired PCI device resides
185 * device resides and the logical device number within that slot
186 * in case of multi-function devices.
188 * Given a PCI bus and slot/function number, the desired PCI device
190 * If the device is found, its reference count is increased and this
193 * If no device is found, %NULL is returned.
202 list_for_each_entry(dev, &bus->devices, bus_list) { in pci_get_slot()
203 if (dev->devfn == devfn) in pci_get_slot()
216 * pci_get_domain_bus_and_slot - locate PCI device for a given PCI domain (segment), bus, and slot
217 * @domain: PCI domain/segment on which the PCI device resides.
218 * @bus: PCI bus on which desired PCI device resides
219 * @devfn: encodes number of PCI slot in which the desired PCI device
220 * resides and the logical device number within that slot in case of
221 * multi-function devices.
224 * device is located in the list of PCI devices. If the device is
227 * reference count by calling pci_dev_put(). If no device is found,
236 if (pci_domain_nr(dev->bus) == domain && in pci_get_domain_bus_and_slot()
237 (dev->bus->number == bus && dev->devfn == devfn)) in pci_get_domain_bus_and_slot()
244 static int match_pci_dev_by_id(struct device *dev, const void *data) in match_pci_dev_by_id()
247 const struct pci_device_id *id = data; in match_pci_dev_by_id() local
249 if (pci_match_one_device(id, pdev)) in match_pci_dev_by_id()
255 * pci_get_dev_by_id - begin or continue searching for a PCI device by id
256 * @id: pointer to struct pci_device_id to match for the device
257 * @from: Previous PCI device found in search, or %NULL for new search.
259 * Iterates through the list of known PCI devices. If a PCI device is found
260 * with a matching id a pointer to its device structure is returned, and the
261 * reference count to the device is incremented. Otherwise, %NULL is returned.
263 * if @from is not %NULL, searches continue from next device on the global
270 static struct pci_dev *pci_get_dev_by_id(const struct pci_device_id *id, in pci_get_dev_by_id() argument
273 struct device *dev; in pci_get_dev_by_id()
274 struct device *dev_start = NULL; in pci_get_dev_by_id()
279 dev_start = &from->dev; in pci_get_dev_by_id()
280 dev = bus_find_device(&pci_bus_type, dev_start, (void *)id, in pci_get_dev_by_id()
289 …* pci_get_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevi…
290 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
291 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
292 * @ss_vendor: PCI subsystem vendor id to match, or %PCI_ANY_ID to match all vendor ids
293 * @ss_device: PCI subsystem device id to match, or %PCI_ANY_ID to match all device ids
294 * @from: Previous PCI device found in search, or %NULL for new search.
296 * Iterates through the list of known PCI devices. If a PCI device is found
297 * with a matching @vendor, @device, @ss_vendor and @ss_device, a pointer to its
298 * device structure is returned, and the reference count to the device is
301 * searches continue from next device on the global list.
304 struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, in pci_get_subsys() argument
308 struct pci_device_id id = { in pci_get_subsys() local
310 .device = device, in pci_get_subsys()
315 return pci_get_dev_by_id(&id, from); in pci_get_subsys()
320 * pci_get_device - begin or continue searching for a PCI device by vendor/device id
321 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
322 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
323 * @from: Previous PCI device found in search, or %NULL for new search.
325 * Iterates through the list of known PCI devices. If a PCI device is
326 * found with a matching @vendor and @device, the reference count to the
327 * device is incremented and a pointer to its device structure is returned.
330 * from next device on the global list. The reference count for @from is
333 struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, in pci_get_device() argument
336 return pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from); in pci_get_device()
341 * pci_get_class - begin or continue searching for a PCI device by class
342 * @class: search for a PCI device with this class designation
343 * @from: Previous PCI device found in search, or %NULL for new search.
345 * Iterates through the list of known PCI devices. If a PCI device is
346 * found with a matching @class, the reference count to the device is
347 * incremented and a pointer to its device structure is returned.
350 * Otherwise if @from is not %NULL, searches continue from next device
356 struct pci_device_id id = { in pci_get_class() local
358 .device = PCI_ANY_ID, in pci_get_class()
365 return pci_get_dev_by_id(&id, from); in pci_get_class()
370 * pci_dev_present - Returns 1 if device matching the device list is present, 0 if not.
372 * that describe the type of PCI device the caller is trying to find.
374 * Obvious fact: You do not have a reference to any device that might be found
375 * by this function, so if that device is removed from the system right after
378 * to if another device happens to be present at this specific moment in time.
385 while (ids->vendor || ids->subvendor || ids->class_mask) { in pci_dev_present()