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