cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

archrandom.h (1068B)

      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 bool __must_check arch_get_random_long(unsigned long *v)
     10{
     11	return false;
     12}
     13
     14static inline bool __must_check arch_get_random_int(unsigned int *v)
     15{
     16	return false;
     17}
     18
     19static inline bool __must_check 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 false;
     25}
     26
     27static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
     28{
     29	unsigned long val;
     30	bool rc;
     31
     32	rc = arch_get_random_seed_long(&val);
     33	if (rc)
     34		*v = val;
     35
     36	return rc;
     37}
     38#endif /* CONFIG_ARCH_RANDOM */
     39
     40#ifdef CONFIG_PPC_POWERNV
     41int powernv_hwrng_present(void);
     42int powernv_get_random_long(unsigned long *v);
     43int powernv_get_random_real_mode(unsigned long *v);
     44#else
     45static inline int powernv_hwrng_present(void) { return 0; }
     46static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
     47#endif
     48
     49#endif /* _ASM_POWERPC_ARCHRANDOM_H */