diff options
Diffstat (limited to 'drivers/dma/idxd/submit.c')
| -rw-r--r-- | drivers/dma/idxd/submit.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c index c01db23e3333..817a564413b0 100644 --- a/drivers/dma/idxd/submit.c +++ b/drivers/dma/idxd/submit.c @@ -61,6 +61,7 @@ struct idxd_desc *idxd_alloc_desc(struct idxd_wq *wq, enum idxd_op_type optype) return __get_desc(wq, idx, cpu); } +EXPORT_SYMBOL_NS_GPL(idxd_alloc_desc, IDXD); void idxd_free_desc(struct idxd_wq *wq, struct idxd_desc *desc) { @@ -69,6 +70,7 @@ void idxd_free_desc(struct idxd_wq *wq, struct idxd_desc *desc) desc->cpu = -1; sbitmap_queue_clear(&wq->sbq, desc->id, cpu); } +EXPORT_SYMBOL_NS_GPL(idxd_free_desc, IDXD); static struct idxd_desc *list_abort_desc(struct idxd_wq *wq, struct idxd_irq_entry *ie, struct idxd_desc *desc) @@ -125,7 +127,8 @@ static void llist_abort_desc(struct idxd_wq *wq, struct idxd_irq_entry *ie, spin_unlock(&ie->list_lock); if (found) - idxd_dma_complete_txd(found, IDXD_COMPLETE_ABORT, false); + idxd_dma_complete_txd(found, IDXD_COMPLETE_ABORT, false, + NULL, NULL); /* * completing the descriptor will return desc to allocator and @@ -135,7 +138,8 @@ static void llist_abort_desc(struct idxd_wq *wq, struct idxd_irq_entry *ie, */ list_for_each_entry_safe(d, t, &flist, list) { list_del_init(&d->list); - idxd_dma_complete_txd(found, IDXD_COMPLETE_ABORT, true); + idxd_dma_complete_txd(found, IDXD_COMPLETE_ABORT, true, + NULL, NULL); } } @@ -183,13 +187,6 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) portal = idxd_wq_portal_addr(wq); /* - * The wmb() flushes writes to coherent DMA data before - * possibly triggering a DMA read. The wmb() is necessary - * even on UP because the recipient is a device. - */ - wmb(); - - /* * Pending the descriptor to the lockless list for the irq_entry * that we designated the descriptor to. */ @@ -199,6 +196,13 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) llist_add(&desc->llnode, &ie->pending_llist); } + /* + * The wmb() flushes writes to coherent DMA data before + * possibly triggering a DMA read. The wmb() is necessary + * even on UP because the recipient is a device. + */ + wmb(); + if (wq_dedicated(wq)) { iosubmit_cmds512(portal, desc->hw, 1); } else { @@ -215,3 +219,4 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) percpu_ref_put(&wq->wq_active); return 0; } +EXPORT_SYMBOL_NS_GPL(idxd_submit_desc, IDXD); |