diff options
Diffstat (limited to 'lib/igt_rand.h')
| -rw-r--r-- | lib/igt_rand.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/igt_rand.h b/lib/igt_rand.h index f664af41..c9cb3243 100644 --- a/lib/igt_rand.h +++ b/lib/igt_rand.h @@ -38,4 +38,10 @@ static inline void hars_petruska_f54_1_random_perturb(uint32_t xor) hars_petruska_f54_1_random_seed(hars_petruska_f54_1_random_unsafe()); } +/* Returns: pseudo-random number in interval [0, ep_ro) */ +static inline uint32_t hars_petruska_f54_1_random_unsafe_max(uint32_t ep_ro) +{ + return ((uint64_t)hars_petruska_f54_1_random_unsafe() * ep_ro) >> 32; +} + #endif /* IGT_RAND_H */ |