xref: /linux/arch/mips/include/asm/bugs.h (revision 0d456bad36d42d16022be045c8a53ddbb59ee478)
1 /*
2  * This is included by init/main.c to check for architecture-dependent bugs.
3  *
4  * Copyright (C) 2007  Maciej W. Rozycki
5  *
6  * Needs:
7  *	void check_bugs(void);
8  */
9 #ifndef _ASM_BUGS_H
10 #define _ASM_BUGS_H
11 
12 #include <linux/bug.h>
13 #include <linux/delay.h>
14 #include <linux/smp.h>
15 
16 #include <asm/cpu.h>
17 #include <asm/cpu-info.h>
18 
19 extern int daddiu_bug;
20 
21 extern void check_bugs64_early(void);
22 
23 extern void check_bugs32(void);
24 extern void check_bugs64(void);
25 
26 static inline void check_bugs_early(void)
27 {
28 #ifdef CONFIG_64BIT
29 	check_bugs64_early();
30 #endif
31 }
32 
33 static inline void check_bugs(void)
34 {
35 	unsigned int cpu = smp_processor_id();
36 
37 	cpu_data[cpu].udelay_val = loops_per_jiffy;
38 	check_bugs32();
39 #ifdef CONFIG_64BIT
40 	check_bugs64();
41 #endif
42 }
43 
44 static inline int r4k_daddiu_bug(void)
45 {
46 #ifdef CONFIG_64BIT
47 	WARN_ON(daddiu_bug < 0);
48 	return daddiu_bug != 0;
49 #else
50 	return 0;
51 #endif
52 }
53 
54 #endif /* _ASM_BUGS_H */
55