include/phys2bus.h

   1 /*
   2  * Copyright 2015 Stephen Warren
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #ifndef _BUS_ADDR_H
   8 #define _BUS_ADDR_H
   9
  10 #ifdef CONFIG_PHYS_TO_BUS
  11 unsigned long phys_to_bus(unsigned long phys);
  12 unsigned long bus_to_phys(unsigned long bus);
  13 #else
  14 static inline unsigned long phys_to_bus(unsigned long phys)
  15 {
  16         return phys;
  17 }
  18
  19 static inline unsigned long bus_to_phys(unsigned long bus)
  20 {
  21         return bus;
  22 }
  23 #endif
  24
  25 #endif