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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-26 09:18:18 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-26 09:18:18 +0400 |
commit | 556f12f602ac0a18a82ca83e9f8e8547688fc633 (patch) | |
tree | d4051f6dd57968c8e8e660ad117c5bedc2aa7e8e /include/linux/pci.h | |
parent | fffddfd6c8e0c10c42c6e2cc54ba880fcc36ebbb (diff) | |
parent | 018ba0a6efada61b9bc17500101d81c3d35807c2 (diff) | |
download | linux-556f12f602ac0a18a82ca83e9f8e8547688fc633.tar.xz |
Merge tag 'pci-v3.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Host bridge hotplug
- Major overhaul of ACPI host bridge add/start (Rafael Wysocki, Yinghai Lu)
- Major overhaul of PCI/ACPI binding (Rafael Wysocki, Yinghai Lu)
- Split out ACPI host bridge and ACPI PCI device hotplug (Yinghai Lu)
- Stop caching _PRT and make independent of bus numbers (Yinghai Lu)
PCI device hotplug
- Clean up cpqphp dead code (Sasha Levin)
- Disable ARI unless device and upstream bridge support it (Yijing Wang)
- Initialize all hot-added devices (not functions 0-7) (Yijing Wang)
Power management
- Don't touch ASPM if disabled (Joe Lawrence)
- Fix ASPM link state management (Myron Stowe)
Miscellaneous
- Fix PCI_EXP_FLAGS accessor (Alex Williamson)
- Disable Bus Master in pci_device_shutdown (Konstantin Khlebnikov)
- Document hotplug resource and MPS parameters (Yijing Wang)
- Add accessor for PCIe capabilities (Myron Stowe)
- Drop pciehp suspend/resume messages (Paul Bolle)
- Make pci_slot built-in only (not a module) (Jiang Liu)
- Remove unused PCI/ACPI bind ops (Jiang Liu)
- Removed used pci_root_bus (Bjorn Helgaas)"
* tag 'pci-v3.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (51 commits)
PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers
PCI: Fix PCI Express Capability accessors for PCI_EXP_FLAGS
ACPI / PCI: Make pci_slot built-in only, not a module
PCI/PM: Clear state_saved during suspend
PCI: Use atomic_inc_return() rather than atomic_add_return()
PCI: Catch attempts to disable already-disabled devices
PCI: Disable Bus Master unconditionally in pci_device_shutdown()
PCI: acpiphp: Remove dead code for PCI host bridge hotplug
PCI: acpiphp: Create companion ACPI devices before creating PCI devices
PCI: Remove unused "rc" in virtfn_add_bus()
PCI: pciehp: Drop suspend/resume ENTRY messages
PCI/ASPM: Don't touch ASPM if forcibly disabled
PCI/ASPM: Deallocate upstream link state even if device is not PCIe
PCI: Document MPS parameters pci=pcie_bus_safe, pci=pcie_bus_perf, etc
PCI: Document hpiosize= and hpmemsize= resource reservation parameters
PCI: Use PCI Express Capability accessor
PCI: Introduce accessor to retrieve PCIe Capabilities Register
PCI: Put pci_dev in device tree as early as possible
PCI: Skip attaching driver in device_add()
PCI: acpiphp: Keep driver loaded even if no slots found
...
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r-- | include/linux/pci.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 6fa4dd2a3b9e..2461033a7987 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -286,6 +286,7 @@ struct pci_dev { unsigned int irq; struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ + bool match_driver; /* Skip attaching driver */ /* These fields are used by common fixups */ unsigned int transparent:1; /* Transparent PCI bridge */ unsigned int multifunction:1;/* Part of multi-function device */ @@ -378,6 +379,8 @@ void pci_set_host_bridge_release(struct pci_host_bridge *bridge, void (*release_fn)(struct pci_host_bridge *), void *release_data); +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge); + /* * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond * to P2P or CardBus bridge windows) go in a table. Additional ones (for @@ -674,6 +677,7 @@ extern struct list_head pci_root_buses; /* list of all known PCI buses */ /* Some device drivers need know if pci is initiated */ extern int no_pci_devices(void); +void pcibios_resource_survey_bus(struct pci_bus *bus); void pcibios_fixup_bus(struct pci_bus *); int __must_check pcibios_enable_device(struct pci_dev *, int mask); /* Architecture specific versions may override this (weak) */ @@ -1700,12 +1704,21 @@ static inline bool pci_is_pcie(struct pci_dev *dev) } /** + * pcie_caps_reg - get the PCIe Capabilities Register + * @dev: PCI device + */ +static inline u16 pcie_caps_reg(const struct pci_dev *dev) +{ + return dev->pcie_flags_reg; +} + +/** * pci_pcie_type - get the PCIe device/port type * @dev: PCI device */ static inline int pci_pcie_type(const struct pci_dev *dev) { - return (dev->pcie_flags_reg & PCI_EXP_FLAGS_TYPE) >> 4; + return (pcie_caps_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4; } void pci_request_acs(void); |