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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_POWERPC_ARCHRANDOM_H
   3#define _ASM_POWERPC_ARCHRANDOM_H
   4
   5#ifdef CONFIG_ARCH_RANDOM
   6
   7#include <asm/machdep.h>
   8
   9static inline int arch_get_random_long(unsigned long *v)
  10{
  11        return 0;
  12}
  13
  14static inline int arch_get_random_int(unsigned int *v)
  15{
  16        return 0;
  17}
  18
  19static inline int arch_get_random_seed_long(unsigned long *v)
  20{
  21        if (ppc_md.get_random_seed)
  22                return ppc_md.get_random_seed(v);
  23
  24        return 0;
  25}
  26static inline int arch_get_random_seed_int(unsigned int *v)
  27{
  28        unsigned long val;
  29        int rc;
  30
  31        rc = arch_get_random_long(&val);
  32        if (rc)
  33                *v = val;
  34
  35        return rc;
  36}
  37
  38static inline int arch_has_random(void)
  39{
  40        return 0;
  41}
  42
  43static inline int arch_has_random_seed(void)
  44{
  45        return !!ppc_md.get_random_seed;
  46}
  47#endif /* CONFIG_ARCH_RANDOM */
  48
  49#ifdef CONFIG_PPC_POWERNV
  50int powernv_hwrng_present(void);
  51int powernv_get_random_long(unsigned long *v);
  52int powernv_get_random_real_mode(unsigned long *v);
  53#else
  54static inline int powernv_hwrng_present(void) { return 0; }
  55static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
  56#endif
  57
  58#endif /* _ASM_POWERPC_ARCHRANDOM_H */
  59