arch/um/include/shared/mem.h

   1 /*
   2  * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __MEM_H__
   7 #define __MEM_H__
   8
   9 extern int phys_mapping(unsigned long phys, unsigned long long *offset_out);
  10
  11 extern unsigned long uml_physmem;
  12 static inline unsigned long to_phys(void *virt)
  13 {
  14         return(((unsigned long) virt) - uml_physmem);
  15 }
  16
  17 static inline void *to_virt(unsigned long phys)
  18 {
  19         return((void *) uml_physmem + phys);
  20 }
  21
  22 #endif