LXR linux/arch/arm64/include/asm/pci.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_PCI_H
   3#define __ASM_PCI_H
   4#ifdef __KERNEL__
   5
   6#include <linux/types.h>
   7#include <linux/slab.h>
   8#include <linux/dma-mapping.h>
   9
  10#include <asm/io.h>
  11
  12#define PCIBIOS_MIN_IO          0x1000
  13#define PCIBIOS_MIN_MEM         0
  14
  15/*
  16 * Set to 1 if the kernel should re-assign all PCI bus numbers
  17 */
  18#define pcibios_assign_all_busses() \
  19        (pci_has_flag(PCI_REASSIGN_ALL_BUS))
  20
  21/*
  22 * PCI address space differs from physical memory address space
  23 */
  24#define PCI_DMA_BUS_IS_PHYS     (0)
  25
  26#define ARCH_GENERIC_PCI_MMAP_RESOURCE  1
  27
  28extern int isa_dma_bridge_buggy;
  29
  30#ifdef CONFIG_PCI
  31static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  32{
  33        /* no legacy IRQ on arm64 */
  34        return -ENODEV;
  35}
  36
  37static inline int pci_proc_domain(struct pci_bus *bus)
  38{
  39        return 1;
  40}
  41#endif  /* CONFIG_PCI */
  42
  43#endif  /* __KERNEL__ */
  44#endif  /* __ASM_PCI_H */
  45