LXR linux/arch/powerpc/include/asm/archrandom.h

   1#ifndef _ASM_POWERPC_ARCHRANDOM_H
   2#define _ASM_POWERPC_ARCHRANDOM_H
   3
   4#ifdef CONFIG_ARCH_RANDOM
   5
   6#include <asm/machdep.h>
   7
   8static inline int arch_get_random_long(unsigned long *v)
   9{
  10        if (ppc_md.get_random_long)
  11                return ppc_md.get_random_long(v);
  12
  13        return 0;
  14}
  15
  16static inline int arch_get_random_int(unsigned int *v)
  17{
  18        unsigned long val;
  19        int rc;
  20
  21        rc = arch_get_random_long(&val);
  22        if (rc)
  23                *v = val;
  24
  25        return rc;
  26}
  27
  28static inline int arch_has_random(void)
  29{
  30        return !!ppc_md.get_random_long;
  31}
  32
  33static inline int arch_get_random_seed_long(unsigned long *v)
  34{
  35        return 0;
  36}
  37static inline int arch_get_random_seed_int(unsigned int *v)
  38{
  39        return 0;
  40}
  41static inline int arch_has_random_seed(void)
  42{
  43        return 0;
  44}
  45
  46#endif /* CONFIG_ARCH_RANDOM */
  47
  48#ifdef CONFIG_PPC_POWERNV
  49int powernv_hwrng_present(void);
  50int powernv_get_random_long(unsigned long *v);
  51int powernv_get_random_real_mode(unsigned long *v);
  52#else
  53static inline int powernv_hwrng_present(void) { return 0; }
  54static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
  55#endif
  56
  57#endif /* _ASM_POWERPC_ARCHRANDOM_H */
  58