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 if (ppc_md.get_random_long) 11 return ppc_md.get_random_long(v); 12 13 return 0; 14 } 15 16 static 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 28 static inline int arch_has_random(void) 29 { 30 return !!ppc_md.get_random_long; 31 } 32 33 static inline int arch_get_random_seed_long(unsigned long *v) 34 { 35 return 0; 36 } 37 static inline int arch_get_random_seed_int(unsigned int *v) 38 { 39 return 0; 40 } 41 static inline int arch_has_random_seed(void) 42 { 43 return 0; 44 } 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 */ 58