PCI: Add pci_remap_iospace() to map bus I/O resources

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Add pci_remap_iospace() to map bus I/O resources into the CPU virtual
address space.  Architectures with special needs may provide their own
version, but most should be able to use this one.

This function is useful for PCI host bridge drivers that need to map the
PCI I/O resources into virtual memory space.

[bhelgaas: phys_addr description, drop temporary "err" variable]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
CC: Arnd Bergmann <arnd@arndb.de>

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Liviu Dudau 2014-09-29 15:29:30 +01:00 • committed by Bjorn Helgaas

parent cbe4097f8a

commit 8b921acfef

3 changed files with 38 additions and 0 deletions

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4

include/asm-generic/pgtable.h

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3

include/linux/pci.h

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