| Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 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 | { |
| Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 10 | return 0; |
| 11 | } |
| 12 | |
| 13 | static inline int arch_get_random_int(unsigned int *v) |
| 14 | { |
| Paul Mackerras | 01c9348 | 2015-07-17 20:11:43 +1000 | [diff] [blame] | 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 | { |
| Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 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 | |
| H. Peter Anvin | 7b878d4 | 2014-03-17 16:36:30 -0700 | [diff] [blame] | 37 | static inline int arch_has_random(void) |
| 38 | { |
| Paul Mackerras | 01c9348 | 2015-07-17 20:11:43 +1000 | [diff] [blame] | 39 | return 0; |
| H. Peter Anvin | 7b878d4 | 2014-03-17 16:36:30 -0700 | [diff] [blame] | 40 | } |
| 41 | |
| H. Peter Anvin | 7b878d4 | 2014-03-17 16:36:30 -0700 | [diff] [blame] | 42 | static inline int arch_has_random_seed(void) |
| 43 | { |
| Paul Mackerras | 01c9348 | 2015-07-17 20:11:43 +1000 | [diff] [blame] | 44 | return !!ppc_md.get_random_seed; |
| H. Peter Anvin | 7b878d4 | 2014-03-17 16:36:30 -0700 | [diff] [blame] | 45 | } |
| Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 46 | #endif /* CONFIG_ARCH_RANDOM */ |
| 47 | |
| Michael Ellerman | e928e9c | 2015-03-20 20:39:41 +1100 | [diff] [blame] | 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 | |
| Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 57 | #endif /* _ASM_POWERPC_ARCHRANDOM_H */ |