| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * This is included by init/main.c to check for architecture-dependent bugs. |
| 4 | * |
| 5 | * Copyright (C) 2007 Maciej W. Rozycki |
| 6 | * |
| 7 | * Needs: |
| 8 | * void check_bugs(void); |
| 9 | */ |
| 10 | #ifndef _ASM_BUGS_H |
| 11 | #define _ASM_BUGS_H |
| 12 | |
| 13 | #include <linux/bug.h> |
| 14 | #include <linux/delay.h> |
| 15 | #include <linux/smp.h> |
| 16 | |
| 17 | #include <asm/cpu.h> |
| 18 | #include <asm/cpu-info.h> |
| 19 | |
| 20 | extern int daddiu_bug; |
| 21 | |
| 22 | extern void check_bugs64_early(void); |
| 23 | |
| 24 | extern void check_bugs32(void); |
| 25 | extern void check_bugs64(void); |
| 26 | |
| 27 | static inline void check_bugs_early(void) |
| 28 | { |
| 29 | #ifdef CONFIG_64BIT |
| 30 | check_bugs64_early(); |
| 31 | #endif |
| 32 | } |
| 33 | |
| 34 | static inline void check_bugs(void) |
| 35 | { |
| 36 | unsigned int cpu = smp_processor_id(); |
| 37 | |
| 38 | cpu_data[cpu].udelay_val = loops_per_jiffy; |
| 39 | check_bugs32(); |
| 40 | #ifdef CONFIG_64BIT |
| 41 | check_bugs64(); |
| 42 | #endif |
| 43 | } |
| 44 | |
| 45 | static inline int r4k_daddiu_bug(void) |
| 46 | { |
| 47 | #ifdef CONFIG_64BIT |
| 48 | WARN_ON(daddiu_bug < 0); |
| 49 | return daddiu_bug != 0; |
| 50 | #else |
| 51 | return 0; |
| 52 | #endif |
| 53 | } |
| 54 | |
| 55 | #endif /* _ASM_BUGS_H */ |