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PCI: Allow architecture-specific pci_remap_iospace()

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pci_remap_iospace() was originally meant as an architecture specific helper
but it moved into generic code after all architectures had the same
requirements. MIPS has different requirements so it should not be shared.

The way for doing this will be using a macro 'pci_remap_iospace' defined
for those architectures that need a special treatment. Hence, put core API
function inside preprocesor conditional code for 'pci_remap_iospace'
definition.

Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210925203224.10419-5-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2021-09-25 22:32:22 +02:00 committed by Greg Kroah-Hartman
parent ebe7e788ee
commit 7c2584faa1
1 changed files with 2 additions and 0 deletions
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2
drivers/pci/pci.c
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@ -4123,6 +4123,7 @@ unsigned long __weak pci_address_to_pio(phys_addr_t address)
* architectures that have memory mapped IO functions defined (and the
* PCI_IOBASE value defined) should call this function.
*/
#ifndef pci_remap_iospace
int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr)
{
#if defined(PCI_IOBASE) && defined(CONFIG_MMU)
@ -4146,6 +4147,7 @@ int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr)
#endif
}
EXPORT_SYMBOL(pci_remap_iospace);
#endif
/**
* pci_unmap_iospace - Unmap the memory mapped I/O space