static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct r600_context *rctx = (struct r600_context *)ctx;
struct r600_query *rquery = (struct r600_query *)query;
r600_query_end(rctx, rquery);
LIST_DELINIT(&rquery->list);
}
/**
* Main scheduler routine in RR policy implmentation
*
* @param
* @return next_vcpuid
*/
int sched_rr_do_schedule(uint64_t *expiration)
{
uint32_t pcpu = smp_processor_id();
/* TODO:(igkang) change type to bool */
struct rq_entry_rr *next_entry = NULL;
bool is_switching_needed = false;
int next_vcpuid = VCPUID_INVALID;
/* check pending attach list
* then attach them to runqueue_rr */
/* TODO:(igkang) write code to attach pending attach requests */
/* TODO:(igkang) improve logical code structure to make it easier to read */
/* determine next vcpu to be run
* - if there is an detach-pending vcpu than detach it. */
if (current[pcpu] == NULL) { /* No vCPU is running */
if (!LIST_IS_EMPTY(&runqueue_rr[pcpu])) { /* and there are some vcpus waiting */
is_switching_needed = true;
}
} else { /* There's a vCPU currently running */
struct rq_entry_rr *current_entry = NULL;
/* put current entry back to runqueue_rr */
current_entry = LIST_ENTRY(struct rq_entry_rr, current[pcpu], head);
LIST_ADDTAIL(current[pcpu], &runqueue_rr[pcpu]);
/* let's switch as tick is over */
current_entry->state = WAITING;
current[pcpu] = NULL;
is_switching_needed = true;
}
/* update scheduling-related data (like tick) */
if (is_switching_needed) {
/* move entry from runqueue_rr to current */
current[pcpu] = runqueue_rr[pcpu].next;
LIST_DELINIT(current[pcpu]);
next_entry = LIST_ENTRY(struct rq_entry_rr, current[pcpu], head);
*expiration =
timer_get_timenow() + MSEC(1) * (uint64_t) next_entry->tick_reset_val;
}
/* vcpu of current entry will be the next vcpu */
if (current[pcpu] != NULL) {
next_entry = LIST_ENTRY(struct rq_entry_rr, current[pcpu], head);
next_entry->state = RUNNING;
/* set return next_vcpuid value */
next_vcpuid = next_entry->vcpuid;
}
static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct r600_context *rctx = (struct r600_context *)ctx;
struct r600_query *rquery = (struct r600_query *)query;
if (!si_query_needs_begin(rquery->type)) {
memset(&rquery->result, 0, sizeof(rquery->result));
}
r600_query_end(rctx, rquery);
if (si_query_needs_begin(rquery->type) && !si_is_timer_query(rquery->type)) {
LIST_DELINIT(&rquery->list);
}
}
