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 9 static inline int arch_get_random_long(unsigned long *v) 10 { 11 return 0; 12 } 13 14 static inline int arch_get_random_int(unsigned int *v) 15 { 16 return 0; 17 } 18 19 static 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 } 26 static 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 38 static inline int arch_has_random(void) 39 { 40 return 0; 41 } 42 43 static 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 50 int powernv_hwrng_present(void); 51 int powernv_get_random_long(unsigned long *v); 52 int powernv_get_random_real_mode(unsigned long *v); 53 #else 54 static inline int powernv_hwrng_present(void) { return 0; } 55 static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; } 56 #endif 57 58 #endif /* _ASM_POWERPC_ARCHRANDOM_H */ 59