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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/archrandom.h 1.07 KB
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  #ifndef _ASM_POWERPC_ARCHRANDOM_H
  #define _ASM_POWERPC_ARCHRANDOM_H
  
  #ifdef CONFIG_ARCH_RANDOM
  
  #include <asm/machdep.h>
  
  static inline int arch_get_random_long(unsigned long *v)
  {
  	return 0;
  }
  
  static inline int arch_get_random_int(unsigned int *v)
  {
  	return 0;
  }
  
  static inline int arch_get_random_seed_long(unsigned long *v)
  {
  	if (ppc_md.get_random_seed)
  		return ppc_md.get_random_seed(v);
  
  	return 0;
  }
  static inline int arch_get_random_seed_int(unsigned int *v)
  {
  	unsigned long val;
  	int rc;
  
  	rc = arch_get_random_long(&val);
  	if (rc)
  		*v = val;
  
  	return rc;
  }
  
  static inline int arch_has_random(void)
  {
  	return 0;
  }
  
  static inline int arch_has_random_seed(void)
  {
  	return !!ppc_md.get_random_seed;
  }
  #endif /* CONFIG_ARCH_RANDOM */
  
  #ifdef CONFIG_PPC_POWERNV
  int powernv_hwrng_present(void);
  int powernv_get_random_long(unsigned long *v);
  int powernv_get_random_real_mode(unsigned long *v);
  #else
  static inline int powernv_hwrng_present(void) { return 0; }
  static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
  #endif
  
  #endif /* _ASM_POWERPC_ARCHRANDOM_H */