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< * $FreeBSD: head/sys/arm/include/counter.h 249268 2013-04-08 19:40:53Z glebius $
---
> * $FreeBSD: head/sys/arm/include/counter.h 252434 2013-07-01 02:48:27Z kib $
39a40,79
> #ifdef IN_SUBR_COUNTER_C
> /* XXXKIB non-atomic 64bit read */
> static inline uint64_t
> counter_u64_read_one(uint64_t *p, int cpu)
> {
>
> return (*(uint64_t *)((char *)p + sizeof(struct pcpu) * cpu));
> }
>
> static inline uint64_t
> counter_u64_fetch_inline(uint64_t *p)
> {
> uint64_t r;
> int i;
>
> r = 0;
> for (i = 0; i < mp_ncpus; i++)
> r += counter_u64_read_one((uint64_t *)p, i);
>
> return (r);
> }
>
> /* XXXKIB non-atomic 64bit store, might interrupt increment */
> static void
> counter_u64_zero_one_cpu(void *arg)
> {
>
> *((uint64_t *)((char *)arg + sizeof(struct pcpu) *
> PCPU_GET(cpuid))) = 0;
> }
>
> static inline void
> counter_u64_zero_inline(counter_u64_t c)
> {
>
> smp_rendezvous(smp_no_rendevous_barrier, counter_u64_zero_one_cpu,
> smp_no_rendevous_barrier, c);
> }
> #endif
>