Lines Matching +full:bus +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 <[email protected]>
8 * Copyright (C) 2003 -- 2004 Greg Kroah-Hartman <[email protected]>
20 * pci_for_each_dma_alias - Iterate over DMA aliases for a device
25 * Starting @pdev, walk up the bus calling @fn for each possible alias
26 * of @pdev at the root bus.
32 struct pci_bus *bus; in pci_for_each_dma_alias() local
36 * The device may have an explicit alias requester ID for DMA where the in pci_for_each_dma_alias()
37 * requester is on another PCI bus. 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()
75 * devices using the subordinate bus number (PCI Express to 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()
77 * where the upstream bus is PCI/X we alias to the bridge 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()
116 static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr) in pci_do_find_bus() argument
121 if (bus->number == busnr) in pci_do_find_bus()
122 return bus; 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
135 * @busnr: number of desired PCI bus
137 * Given a PCI bus number and domain number, the desired PCI bus is located
138 * in the global list of PCI buses. If the bus is found, a pointer to its
139 * data structure is returned. If no bus is found, %NULL is returned.
143 struct pci_bus *bus = NULL; in pci_find_bus() local
146 while ((bus = pci_find_next_bus(bus)) != NULL) { in pci_find_bus()
147 if (pci_domain_nr(bus) != domain) in pci_find_bus()
149 tmp_bus = pci_do_find_bus(bus, busnr); in pci_find_bus()
158 * pci_find_next_bus - begin or continue searching for a PCI bus
159 * @from: Previous PCI bus found, or %NULL for new search.
172 n = from ? from->node.next : pci_root_buses.next; in pci_find_next_bus()
181 * pci_get_slot - locate PCI device for a given PCI slot
182 * @bus: PCI bus on which desired PCI device resides
185 * in case of multi-function devices.
187 * Given a PCI bus and slot/function number, the desired PCI device
194 struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn) in pci_get_slot() argument
200 list_for_each_entry(dev, &bus->devices, bus_list) { in pci_get_slot()
201 if (dev->devfn == devfn) in pci_get_slot()
214 * pci_get_domain_bus_and_slot - locate PCI device for a given PCI domain (segment), bus, and slot
216 * @bus: PCI bus on which desired PCI device resides
219 * multi-function devices.
221 * Given a PCI domain, bus, and slot/function number, the desired PCI
228 struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, in pci_get_domain_bus_and_slot() argument
234 if (pci_domain_nr(dev->bus) == domain && in pci_get_domain_bus_and_slot()
235 (dev->bus->number == bus && dev->devfn == devfn)) in pci_get_domain_bus_and_slot()
245 const struct pci_device_id *id = data; in match_pci_dev_by_id() local
247 if (pci_match_one_device(id, pdev)) in match_pci_dev_by_id()
253 * pci_get_dev_by_id - begin or continue searching for a PCI device by id
254 * @id: pointer to struct pci_device_id to match for the device
258 * with a matching id a pointer to its device structure is returned, and the
268 static struct pci_dev *pci_get_dev_by_id(const struct pci_device_id *id, in pci_get_dev_by_id() argument
276 dev_start = &from->dev; in pci_get_dev_by_id()
277 dev = bus_find_device(&pci_bus_type, dev_start, (void *)id, in pci_get_dev_by_id()
286 …* pci_get_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevi…
287 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
288 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
289 * @ss_vendor: PCI subsystem vendor id to match, or %PCI_ANY_ID to match all vendor ids
290 * @ss_device: PCI subsystem device id to match, or %PCI_ANY_ID to match all device ids
305 struct pci_device_id id = { in pci_get_subsys() local
312 return pci_get_dev_by_id(&id, from); in pci_get_subsys()
317 * pci_get_device - begin or continue searching for a PCI device by vendor/device id
318 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
319 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
338 * pci_get_class - begin or continue searching for a PCI device by class
353 struct pci_device_id id = { in pci_get_class() local
362 return pci_get_dev_by_id(&id, from); in pci_get_class()
367 * pci_get_base_class - searching for a PCI device by matching against the base class code only
384 struct pci_device_id id = { in pci_get_base_class() local
393 return pci_get_dev_by_id(&id, from); in pci_get_base_class()
398 * pci_dev_present - Returns 1 if device matching the device list is present, 0 if not.
412 while (ids->vendor || ids->subvendor || ids->class_mask) { in pci_dev_present()