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kernel/linux-rt-4.4.41/arch/sh/include/asm/bugs.h 1.34 KB
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  #ifndef __ASM_SH_BUGS_H
  #define __ASM_SH_BUGS_H
  
  /*
   * This is included by init/main.c to check for architecture-dependent bugs.
   *
   * Needs:
   *	void check_bugs(void);
   */
  
  /*
   * I don't know of any Super-H bugs yet.
   */
  
  #include <asm/processor.h>
  
  extern void select_idle_routine(void);
  
  static void __init check_bugs(void)
  {
  	extern unsigned long loops_per_jiffy;
  	char *p = &init_utsname()->machine[2]; /* "sh" */
  
  	select_idle_routine();
  
  	current_cpu_data.loops_per_jiffy = loops_per_jiffy;
  
  	switch (current_cpu_data.family) {
  	case CPU_FAMILY_SH2:
  		*p++ = '2';
  		break;
  	case CPU_FAMILY_SH2A:
  		*p++ = '2';
  		*p++ = 'a';
  		break;
  	case CPU_FAMILY_SH3:
  		*p++ = '3';
  		break;
  	case CPU_FAMILY_SH4:
  		*p++ = '4';
  		break;
  	case CPU_FAMILY_SH4A:
  		*p++ = '4';
  		*p++ = 'a';
  		break;
  	case CPU_FAMILY_SH4AL_DSP:
  		*p++ = '4';
  		*p++ = 'a';
  		*p++ = 'l';
  		*p++ = '-';
  		*p++ = 'd';
  		*p++ = 's';
  		*p++ = 'p';
  		break;
  	case CPU_FAMILY_SH5:
  		*p++ = '6';
  		*p++ = '4';
  		break;
  	case CPU_FAMILY_UNKNOWN:
  		/*
  		 * Specifically use CPU_FAMILY_UNKNOWN rather than
  		 * default:, so we're able to have the compiler whine
  		 * about unhandled enumerations.
  		 */
  		break;
  	}
  
  	printk("CPU: %s
  ", get_cpu_subtype(&current_cpu_data));
  
  #ifndef __LITTLE_ENDIAN__
  	/* 'eb' means 'Endian Big' */
  	*p++ = 'e';
  	*p++ = 'b';
  #endif
  	*p = '\0';
  }
  #endif /* __ASM_SH_BUGS_H */