LXR linux/arch/powerpc/kernel/iomap.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * ppc64 "iomap" interface implementation.
   4 *
   5 * (C) Copyright 2004 Linus Torvalds
   6 */
   7#include <linux/pci.h>
   8#include <linux/mm.h>
   9#include <linux/export.h>
  10#include <asm/io.h>
  11#include <asm/pci-bridge.h>
  12#include <asm/isa-bridge.h>
  13
  14void __iomem *ioport_map(unsigned long port, unsigned int len)
  15{
  16        return (void __iomem *) (port + _IO_BASE);
  17}
  18EXPORT_SYMBOL(ioport_map);
  19
  20#ifdef CONFIG_PCI
  21void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
  22{
  23        if (isa_vaddr_is_ioport(addr))
  24                return;
  25        if (pcibios_vaddr_is_ioport(addr))
  26                return;
  27        iounmap(addr);
  28}
  29
  30EXPORT_SYMBOL(pci_iounmap);
  31#endif /* CONFIG_PCI */
  32