diff options
Diffstat (limited to 'drivers/s390/crypto/ap_queue.c')
| -rw-r--r-- | drivers/s390/crypto/ap_queue.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c index 0f1a5d02acb0..a550d40921e7 100644 --- a/drivers/s390/crypto/ap_queue.c +++ b/drivers/s390/crypto/ap_queue.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright IBM Corp. 2016 * Author(s): Martin Schwidefsky <[email protected]> @@ -16,6 +17,25 @@ #include "ap_asm.h" /** + * ap_queue_irq_ctrl(): Control interruption on a AP queue. + * @qirqctrl: struct ap_qirq_ctrl (64 bit value) + * @ind: The notification indicator byte + * + * Returns AP queue status. + * + * Control interruption on the given AP queue. + * Just a simple wrapper function for the low level PQAP(AQIC) + * instruction available for other kernel modules. + */ +struct ap_queue_status ap_queue_irq_ctrl(ap_qid_t qid, + struct ap_qirq_ctrl qirqctrl, + void *ind) +{ + return ap_aqic(qid, qirqctrl, ind); +} +EXPORT_SYMBOL(ap_queue_irq_ctrl); + +/** * ap_queue_enable_interruption(): Enable interruption on an AP queue. * @qid: The AP queue number * @ind: the notification indicator byte @@ -27,8 +47,11 @@ static int ap_queue_enable_interruption(struct ap_queue *aq, void *ind) { struct ap_queue_status status; + struct ap_qirq_ctrl qirqctrl = { 0 }; - status = ap_aqic(aq->qid, ind); + qirqctrl.ir = 1; + qirqctrl.isc = AP_ISC; + status = ap_aqic(aq->qid, qirqctrl, ind); switch (status.response_code) { case AP_RESPONSE_NORMAL: case AP_RESPONSE_OTHERWISE_CHANGED: @@ -362,7 +385,7 @@ static enum ap_wait ap_sm_setirq_wait(struct ap_queue *aq) /* Get the status with TAPQ */ status = ap_tapq(aq->qid, NULL); - if (status.int_enabled == 1) { + if (status.irq_enabled == 1) { /* Irqs are now enabled */ aq->interrupt = AP_INTR_ENABLED; aq->state = (aq->queue_count > 0) ? @@ -604,13 +627,11 @@ struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type) aq->ap_dev.device.release = ap_queue_device_release; aq->ap_dev.device.type = &ap_queue_type; aq->ap_dev.device_type = device_type; - /* CEX6 toleration: map to CEX5 */ - if (device_type == AP_DEVICE_TYPE_CEX6) - aq->ap_dev.device_type = AP_DEVICE_TYPE_CEX5; aq->qid = qid; aq->state = AP_STATE_RESET_START; aq->interrupt = AP_INTR_DISABLED; spin_lock_init(&aq->lock); + INIT_LIST_HEAD(&aq->list); INIT_LIST_HEAD(&aq->pendingq); INIT_LIST_HEAD(&aq->requestq); setup_timer(&aq->timeout, ap_request_timeout, (unsigned long) aq); |