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 #define ARCH_GENERIC_PCI_MMAP_RESOURCE  1
  22
  23 extern int isa_dma_bridge_buggy;
  24
  25 #ifdef CONFIG_PCI
  26 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  27 {
  28         /* no legacy IRQ on arm64 */
  29         return -ENODEV;
  30 }
  31
  32 static inline int pci_proc_domain(struct pci_bus *bus)
  33 {
  34         return 1;
  35 }
  36 #endif  /* CONFIG_PCI */
  37
  38 #endif  /* __KERNEL__ */
  39 #endif  /* __ASM_PCI_H */