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 __init check_bugs(void) 28 { 29 unsigned int cpu = smp_processor_id(); 30 31 cpu_data[cpu].udelay_val = loops_per_jiffy; 32 check_bugs32(); 33 34 if (IS_ENABLED(CONFIG_CPU_R4X00_BUGS64)) 35 check_bugs64(); 36 } 37 38 static inline int r4k_daddiu_bug(void) 39 { 40 if (!IS_ENABLED(CONFIG_CPU_R4X00_BUGS64)) 41 return 0; 42 43 WARN_ON(daddiu_bug < 0); 44 return daddiu_bug != 0; 45 } 46 47 #endif /* _ASM_BUGS_H */ 48