i915_random_reorder
i915_random_reorder(offsets, ncachelines, &prng);
i915_random_reorder(order, count, &prng);
i915_random_reorder(order, count, &prng);
i915_random_reorder(order, count, state);
void i915_random_reorder(unsigned int *order,
i915_random_reorder(order, total, &prng);