aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-sh64/byteorder.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sh64/byteorder.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-sh64/byteorder.h')
-rw-r--r--include/asm-sh64/byteorder.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-sh64/byteorder.h b/include/asm-sh64/byteorder.h
new file mode 100644
index 000000000000..f602ebe334eb
--- /dev/null
+++ b/include/asm-sh64/byteorder.h
@@ -0,0 +1,49 @@
1#ifndef __ASM_SH64_BYTEORDER_H
2#define __ASM_SH64_BYTEORDER_H
3
4/*
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 *
9 * include/asm-sh64/byteorder.h
10 *
11 * Copyright (C) 2000, 2001 Paolo Alberelli
12 *
13 */
14
15#include <asm/types.h>
16
17static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
18{
19 __asm__("byterev %0, %0\n\t"
20 "shari %0, 32, %0"
21 : "=r" (x)
22 : "0" (x));
23 return x;
24}
25
26static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
27{
28 __asm__("byterev %0, %0\n\t"
29 "shari %0, 48, %0"
30 : "=r" (x)
31 : "0" (x));
32 return x;
33}
34
35#define __arch__swab32(x) ___arch__swab32(x)
36#define __arch__swab16(x) ___arch__swab16(x)
37
38#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
39# define __BYTEORDER_HAS_U64__
40# define __SWAB_64_THRU_32__
41#endif
42
43#ifdef __LITTLE_ENDIAN__
44#include <linux/byteorder/little_endian.h>
45#else
46#include <linux/byteorder/big_endian.h>
47#endif
48
49#endif /* __ASM_SH64_BYTEORDER_H */