xref: /linux/arch/um/include/shared/mem.h (revision 4f2c0a4acffbec01079c28f839422e64ddeff004)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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;
uml_to_phys(void * virt)12 static inline unsigned long uml_to_phys(void *virt)
13 {
14 	return(((unsigned long) virt) - uml_physmem);
15 }
16 
uml_to_virt(unsigned long phys)17 static inline void *uml_to_virt(unsigned long phys)
18 {
19 	return((void *) uml_physmem + phys);
20 }
21 
22 #endif
23