int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity,
struct etnaviv_gem_submit *submit)
{
int ret;
ret = drm_sched_job_init(&submit->sched_job, &submit->gpu->sched,
sched_entity, submit->cmdbuf.ctx);
if (ret)
return ret;
submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished);
mutex_lock(&submit->gpu->fence_idr_lock);
submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr,
submit->out_fence, 0,
INT_MAX, GFP_KERNEL);
mutex_unlock(&submit->gpu->fence_idr_lock);
if (submit->out_fence_id < 0)
return -ENOMEM;
/* the scheduler holds on to the job now */
kref_get(&submit->refcount);
drm_sched_entity_push_job(&submit->sched_job, sched_entity);
return 0;
}
/*
* Get a connection ID and epoch for a client connection from the global pool.
* The connection struct pointer is then recorded in the idr radix tree. The
* epoch doesn't change until the client is rebooted (or, at least, unless the
* module is unloaded).
*/
static int rxrpc_get_client_connection_id(struct rxrpc_connection *conn,
gfp_t gfp)
{
struct rxrpc_net *rxnet = conn->params.local->rxnet;
int id;
_enter("");
idr_preload(gfp);
spin_lock(&rxrpc_conn_id_lock);
id = idr_alloc_cyclic(&rxrpc_client_conn_ids, conn,
1, 0x40000000, GFP_NOWAIT);
if (id < 0)
goto error;
spin_unlock(&rxrpc_conn_id_lock);
idr_preload_end();
conn->proto.epoch = rxnet->epoch;
conn->proto.cid = id << RXRPC_CIDSHIFT;
set_bit(RXRPC_CONN_HAS_IDR, &conn->flags);
_leave(" [CID %x]", conn->proto.cid);
return 0;
error:
spin_unlock(&rxrpc_conn_id_lock);
idr_preload_end();
_leave(" = %d", id);
return id;
}
/**
* slim_alloc_txn_tid() - Allocate a tid to txn
*
* @ctrl: Controller handle
* @txn: transaction to be allocated with tid.
*
* Return: zero on success with valid txn->tid and error code on failures.
*/
int slim_alloc_txn_tid(struct slim_controller *ctrl, struct slim_msg_txn *txn)
{
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&ctrl->txn_lock, flags);
ret = idr_alloc_cyclic(&ctrl->tid_idr, txn, 0,
SLIM_MAX_TIDS, GFP_ATOMIC);
if (ret < 0) {
spin_unlock_irqrestore(&ctrl->txn_lock, flags);
return ret;
}
txn->tid = ret;
spin_unlock_irqrestore(&ctrl->txn_lock, flags);
return 0;
}
int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity,
struct etnaviv_gem_submit *submit)
{
int ret = 0;
/*
* Hold the fence lock across the whole operation to avoid jobs being
* pushed out of order with regard to their sched fence seqnos as
* allocated in drm_sched_job_init.
*/
mutex_lock(&submit->gpu->fence_lock);
ret = drm_sched_job_init(&submit->sched_job, sched_entity,
submit->ctx);
if (ret)
goto out_unlock;
submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished);
submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr,
submit->out_fence, 0,
INT_MAX, GFP_KERNEL);
if (submit->out_fence_id < 0) {
drm_sched_job_cleanup(&submit->sched_job);
ret = -ENOMEM;
goto out_unlock;
}
/* the scheduler holds on to the job now */
kref_get(&submit->refcount);
drm_sched_entity_push_job(&submit->sched_job, sched_entity);
out_unlock:
mutex_unlock(&submit->gpu->fence_lock);
return ret;
}
