kernel/linux.git/drivers/pci/host-bridge.c, branch linux-4.16.y

PCI: Add SPDX GPL-2.0 when no license was specified

2018-01-26T17:45:16+00:00

b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license") added SPDX GPL-2.0 to several PCI files that previously contained no license information. Add SPDX GPL-2.0 to all other PCI files that did not contain any license information and hence were under the default GPL version 2 license of the kernel. Signed-off-by: Bjorn Helgaas Reviewed-by: Greg Kroah-Hartman

cxl: use pcibios_free_controller_deferred() when removing vPHBs

2016-08-22T01:09:33+00:00

When cxl removes a vPHB, it's possible that the pci_controller may be freed before all references to the devices on the vPHB have been released. This in turn causes an invalid memory access when the devices are eventually released, as pcibios_release_device() attempts to call the phb's release_device hook. In cxl_pci_vphb_remove(), remove the existing call to pcibios_free_controller(). Instead, use pcibios_free_controller_deferred() to free the pci_controller after all devices have been released. Export pci_set_host_bridge_release() so we can do this. Cc: stable@vger.kernel.org Signed-off-by: Andrew Donnellan Reviewed-by: Matthew R. Ochs Acked-by: Ian Munsie Signed-off-by: Benjamin Herrenschmidt

Merge branch 'pci/misc' into next

2015-04-10T13:27:18+00:00

* pci/misc: PCI: Read capability list as dwords, not bytes PCI: Don't clear ASPM bits when the FADT declares it's unsupported PCI: Clarify policy for vendor IDs in pci.txt PCI/ACPI: Optimize device state transition delays PCI: Export pci_find_host_bridge() for use inside PCI core PCI: Make a shareable UUID for PCI firmware ACPI _DSM PCI: Fix typo in Thunderbolt kernel message

PCI: Export pci_find_host_bridge() for use inside PCI core

2015-04-08T19:49:20+00:00

The find_pci_host_bridge() function can be useful to other PCI code so export it. Change its name to pci_find_host_bridge(). Signed-off-by: Aaron Lu Signed-off-by: Bjorn Helgaas

PCI: Add helper functions pci_get[put]_host_bridge_device()

2015-03-03T20:42:57+00:00

Add helper functions to get/put the root bus's host bridge device. Tested-by: Suravee Suthikulpanit (AMD Seattle) Signed-off-by: Murali Karicheri Signed-off-by: Bjorn Helgaas Reviewed-by: Catalin Marinas Acked-by: Will Deacon CC: Joerg Roedel CC: Grant Likely CC: Rob Herring CC: Russell King CC: Arnd Bergmann

PCI: Use common resource list management code instead of private implementation

2015-02-05T14:09:25+00:00

Use common resource list management data structure and interfaces instead of private implementation. Signed-off-by: Jiang Liu Acked-by: Will Deacon Acked-by: Bjorn Helgaas Signed-off-by: Rafael J. Wysocki

PCI: Remove unnecessary includes of

2014-04-14T22:12:37+00:00

None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker Signed-off-by: Bjorn Helgaas

resource: Add resource_contains()

2014-02-26T21:42:09+00:00

We have two identical copies of resource_contains() already, and more places that could use it. This moves it to ioport.h where it can be shared. resource_contains(struct resource *r1, struct resource *r2) returns true iff r1 and r2 are the same type (most callers already checked this separately) and the r1 address range completely contains r2. In addition, the new resource_contains() checks that both r1 and r2 have addresses assigned to them. If a resource is IORESOURCE_UNSET, it doesn't have a valid address and can't contain or be contained by another resource. Some callers already check this or for res->start. No functional change. Signed-off-by: Bjorn Helgaas

PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev

2013-12-21T17:06:10+00:00

These interfaces: pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource) pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region) took a pci_dev, but they really depend only on the pci_bus. And we want to use them in resource allocation paths where we have the bus but not a device, so this patch converts them to take the pci_bus instead of the pci_dev: pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource) pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region) In fact, with standard PCI-PCI bridges, they only depend on the host bridge, because that's the only place address translation occurs, but we aren't going that far yet. [bhelgaas: changelog] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas

PCI: add host bridge release support

2012-04-30T20:52:43+00:00

We need a hook to release host bridge resources allocated when creating root bus. Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas