| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2002, 2003 Jeff Dike (jdike@addtoit.com) |
| 3 | * Licensed under the GPL |
| 4 | */ |
| 5 | |
| 6 | #ifndef __MEM_H__ |
| 7 | #define __MEM_H__ |
| 8 | |
| 9 | #include "linux/types.h" |
| 10 | |
| 11 | extern int phys_mapping(unsigned long phys, __u64 *offset_out); |
| 12 | extern int physmem_subst_mapping(void *virt, int fd, __u64 offset, int w); |
| 13 | extern int is_remapped(void *virt); |
| 14 | extern int physmem_remove_mapping(void *virt); |
| 15 | extern void physmem_forget_descriptor(int fd); |
| Paolo 'Blaisorblade' Giarrusso | d99c402 | 2005-09-10 19:44:56 +0200 | [diff] [blame] | 16 | |
| 17 | extern unsigned long uml_physmem; |
| 18 | static inline unsigned long to_phys(void *virt) |
| 19 | { |
| 20 | return(((unsigned long) virt) - uml_physmem); |
| 21 | } |
| 22 | |
| 23 | static inline void *to_virt(unsigned long phys) |
| 24 | { |
| 25 | return((void *) uml_physmem + phys); |
| 26 | } |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
| 28 | #endif |
| 29 | |
| 30 | /* |
| 31 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 32 | * Emacs will notice this stuff at the end of the file and automatically |
| 33 | * adjust the settings for this buffer only. This must remain at the end |
| 34 | * of the file. |
| 35 | * --------------------------------------------------------------------------- |
| 36 | * Local variables: |
| 37 | * c-file-style: "linux" |
| 38 | * End: |
| 39 | */ |