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path: root/drivers/s390/crypto/ap_bus.c
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Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
-rw-r--r--drivers/s390/crypto/ap_bus.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 6dee598979e7..4fcfa8d4e0b5 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -166,19 +166,33 @@ static int ap_configuration_available(void)
}
/**
+ * ap_apft_available(): Test if AP facilities test (APFT)
+ * facility is available.
+ *
+ * Returns 1 if APFT is is available.
+ */
+static int ap_apft_available(void)
+{
+ return test_facility(15);
+}
+
+/**
* ap_test_queue(): Test adjunct processor queue.
* @qid: The AP queue number
+ * @tbit: Test facilities bit
* @info: Pointer to queue descriptor
*
* Returns AP queue status structure.
*/
-static inline struct ap_queue_status
-ap_test_queue(ap_qid_t qid, unsigned long *info)
+struct ap_queue_status ap_test_queue(ap_qid_t qid,
+ int tbit,
+ unsigned long *info)
{
- if (test_facility(15))
- qid |= 1UL << 23; /* set APFT T bit*/
+ if (tbit)
+ qid |= 1UL << 23; /* set T bit*/
return ap_tapq(qid, info);
}
+EXPORT_SYMBOL(ap_test_queue);
static inline int ap_query_configuration(void)
{
@@ -261,7 +275,7 @@ static int ap_query_queue(ap_qid_t qid, int *queue_depth, int *device_type,
if (!ap_test_config_card_id(AP_QID_CARD(qid)))
return -ENODEV;
- status = ap_test_queue(qid, &info);
+ status = ap_test_queue(qid, ap_apft_available(), &info);
switch (status.response_code) {
case AP_RESPONSE_NORMAL:
*queue_depth = (int)(info & 0xff);
@@ -940,7 +954,9 @@ static int ap_select_domain(void)
for (j = 0; j < AP_DEVICES; j++) {
if (!ap_test_config_card_id(j))
continue;
- status = ap_test_queue(AP_MKQID(j, i), NULL);
+ status = ap_test_queue(AP_MKQID(j, i),
+ ap_apft_available(),
+ NULL);
if (status.response_code != AP_RESPONSE_NORMAL)
continue;
count++;

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