PCI/ACPI: Extend pci_mcfg_lookup() to return ECAM config accessors

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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>

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Tomasz Nowicki 2016-09-09 21:24:03 +02:00 • committed by Bjorn Helgaas

parent 8fd4391ee7

commit 13983eb89d

3 changed files with 33 additions and 16 deletions

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include/linux/pci-acpi.h

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