1 /*
2 * Copyright (c) 2013 Christian Svensson <blue@cmd.nu>
3 * Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30
31 #ifdef OR1K
32
33 #define OR1K_ATOMIC_SWAP 1
34 #define OR1K_ATOMIC_CMPXCHG 2
35 #define OR1K_ATOMIC_XCHG 3
36 #define OR1K_ATOMIC_ADD 4
37 #define OR1K_ATOMIC_DECPOS 5
38 #define OR1K_ATOMIC_AND 6
39 #define OR1K_ATOMIC_OR 7
40 #define OR1K_ATOMIC_UMAX 8
41 #define OR1K_ATOMIC_UMIN 9
42
43 #include "xlat/atomic_ops.h"
44
SYS_FUNC(or1k_atomic)45 SYS_FUNC(or1k_atomic)
46 {
47 printxval(atomic_ops, tcp->u_arg[0], "???");
48 switch(tcp->u_arg[0]) {
49 case OR1K_ATOMIC_SWAP:
50 tprintf(", 0x%lx, 0x%lx", tcp->u_arg[1], tcp->u_arg[2]);
51 break;
52 case OR1K_ATOMIC_CMPXCHG:
53 tprintf(", 0x%lx, %#lx, %#lx", tcp->u_arg[1], tcp->u_arg[2],
54 tcp->u_arg[3]);
55 break;
56
57 case OR1K_ATOMIC_XCHG:
58 case OR1K_ATOMIC_ADD:
59 case OR1K_ATOMIC_AND:
60 case OR1K_ATOMIC_OR:
61 case OR1K_ATOMIC_UMAX:
62 case OR1K_ATOMIC_UMIN:
63 tprintf(", 0x%lx, %#lx", tcp->u_arg[1], tcp->u_arg[2]);
64 break;
65
66 case OR1K_ATOMIC_DECPOS:
67 tprintf(", 0x%lx", tcp->u_arg[1]);
68 break;
69
70 default:
71 break;
72 }
73
74 return RVAL_DECODED | RVAL_HEX;
75 }
76
77 #endif /* OR1K */
78