1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2007
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 *
6 * Author: Sergei Poselenov <sposelenov@emcraft.com>
7 */
8
9#include <common.h>
10
11/*
12 * FPU test
13 *
14 * This test checks the arithmetic logic unit (ALU) of CPU.
15 * It tests independently various groups of instructions using
16 * run-time modification of the code to reduce the memory footprint.
17 * For more details refer to post/cpu/ *.c files.
18 */
19
20#include <post.h>
21
22GNU_FPOST_ATTR
23
24#if CFG_POST & CFG_SYS_POST_FPU
25
26#include <watchdog.h>
27
28extern int fpu_status (void);
29extern void fpu_enable (void);
30extern void fpu_disable (void);
31
32extern int fpu_post_test_math1 (void);
33extern int fpu_post_test_math2 (void);
34extern int fpu_post_test_math3 (void);
35extern int fpu_post_test_math4 (void);
36extern int fpu_post_test_math5 (void);
37extern int fpu_post_test_math6 (void);
38extern int fpu_post_test_math7 (void);
39
40int fpu_post_test (int flags)
41{
42	int fpu = fpu_status ();
43
44	int ret = 0;
45
46	schedule();
47
48	if (!fpu)
49		fpu_enable ();
50
51	if (ret == 0)
52		ret = fpu_post_test_math1 ();
53	if (ret == 0)
54		ret = fpu_post_test_math2 ();
55	if (ret == 0)
56		ret = fpu_post_test_math3 ();
57	if (ret == 0)
58		ret = fpu_post_test_math4 ();
59	if (ret == 0)
60		ret = fpu_post_test_math5 ();
61	if (ret == 0)
62		ret = fpu_post_test_math6 ();
63	if (ret == 0)
64		ret = fpu_post_test_math7 ();
65
66	if (!fpu)
67		fpu_disable ();
68
69	schedule();
70
71	return ret;
72}
73
74#endif /* CFG_POST & CFG_SYS_POST_FPU */
75