arch/powerpc/include/asm/isa-bridge.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ISA_BRIDGE_H
   3 #define __ISA_BRIDGE_H
   4
   5 #ifdef CONFIG_PPC64
   6
   7 extern void isa_bridge_find_early(struct pci_controller *hose);
   8 extern void isa_bridge_init_non_pci(struct device_node *np);
   9
  10 static inline int isa_vaddr_is_ioport(void __iomem *address)
  11 {
  12         /* Check if address hits the reserved legacy IO range */
  13         unsigned long ea = (unsigned long)address;
  14         return ea >= ISA_IO_BASE && ea < ISA_IO_END;
  15 }
  16
  17 #else
  18
  19 static inline int isa_vaddr_is_ioport(void __iomem *address)
  20 {
  21         /* No specific ISA handling on ppc32 at this stage, it
  22          * all goes through PCI
  23          */
  24         return 0;
  25 }
  26
  27 #endif
  28
  29 #endif /* __ISA_BRIDGE_H */
  30