arch/mips/include/asm/bugs.h

   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 */