diff options
Diffstat (limited to 'include/asm-s390/io.h')
-rw-r--r-- | include/asm-s390/io.h | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h deleted file mode 100644 index b7ff6afc3caa..000000000000 --- a/include/asm-s390/io.h +++ /dev/null | |||
@@ -1,54 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-s390/io.h | ||
3 | * | ||
4 | * S390 version | ||
5 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | ||
6 | * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) | ||
7 | * | ||
8 | * Derived from "include/asm-i386/io.h" | ||
9 | */ | ||
10 | |||
11 | #ifndef _S390_IO_H | ||
12 | #define _S390_IO_H | ||
13 | |||
14 | #ifdef __KERNEL__ | ||
15 | |||
16 | #include <asm/page.h> | ||
17 | |||
18 | #define IO_SPACE_LIMIT 0xffffffff | ||
19 | |||
20 | /* | ||
21 | * Change virtual addresses to physical addresses and vv. | ||
22 | * These are pretty trivial | ||
23 | */ | ||
24 | static inline unsigned long virt_to_phys(volatile void * address) | ||
25 | { | ||
26 | unsigned long real_address; | ||
27 | asm volatile( | ||
28 | " lra %0,0(%1)\n" | ||
29 | " jz 0f\n" | ||
30 | " la %0,0\n" | ||
31 | "0:" | ||
32 | : "=a" (real_address) : "a" (address) : "cc"); | ||
33 | return real_address; | ||
34 | } | ||
35 | |||
36 | static inline void * phys_to_virt(unsigned long address) | ||
37 | { | ||
38 | return (void *) address; | ||
39 | } | ||
40 | |||
41 | /* | ||
42 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem | ||
43 | * access | ||
44 | */ | ||
45 | #define xlate_dev_mem_ptr(p) __va(p) | ||
46 | |||
47 | /* | ||
48 | * Convert a virtual cached pointer to an uncached pointer | ||
49 | */ | ||
50 | #define xlate_dev_kmem_ptr(p) p | ||
51 | |||
52 | #endif /* __KERNEL__ */ | ||
53 | |||
54 | #endif | ||