include/phys2bus.h

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