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| author |   Tomasz Nowicki <tn@semihalf.com> | 2016-09-09 21:24:03 +0200 |
|---|---|---|
| committer |   Bjorn Helgaas <helgaas@kernel.org> | 2016-12-06 13:45:48 -0600 |
| commit | 13983eb89d5afaa65acd4479fad151cbd4de5509 (patch) | |
| tree | a131313e953e8b073ba44ff33a69994d11b0abdd /include/linux/pci-acpi.h | |
| parent | arm64: PCI: Exclude ACPI "consumer" resources from host bridge windows (diff) | |
| download | linux-dev-13983eb89d5afaa65acd4479fad151cbd4de5509.tar.xz linux-dev-13983eb89d5afaa65acd4479fad151cbd4de5509.zip | |
PCI/ACPI: Extend pci_mcfg_lookup() to return ECAM config accessors
pci_mcfg_lookup() is the external interface to the generic MCFG code.
Previously it merely looked up the ECAM base address for a given domain and
bus range. We want a way to add MCFG quirks, some of which may require
special config accessors and adjustments to the ECAM address range.
Extend pci_mcfg_lookup() so it can return a pointer to a pci_ecam_ops
structure and a struct resource for the ECAM address space. For now, it
always returns &pci_generic_ecam_ops (the standard accessor) and the
resource described by the MCFG.
No functional changes intended.
[bhelgaas: changelog]
Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci-acpi.h')
| -rw-r--r-- | include/linux/pci-acpi.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 7d63a66e8ed4..7a4e83a8c89c 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -24,7 +24,9 @@ static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev) } extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); -extern phys_addr_t pci_mcfg_lookup(u16 domain, struct resource *bus_res); +struct pci_ecam_ops; +extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres, + struct pci_ecam_ops **ecam_ops); static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) { |