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
  28 extern int isa_dma_bridge_buggy;
  29
  30 #ifdef CONFIG_PCI
  31 static 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
  37 static 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 */