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path: root/drivers/s390/crypto/ap_bus.h
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Diffstat (limited to 'drivers/s390/crypto/ap_bus.h')
-rw-r--r--drivers/s390/crypto/ap_bus.h22
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 08b9738285b4..d960a6309eec 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -6,6 +6,7 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Ralph Wuerthner <rwuerthn@de.ibm.com>
* Felix Beck <felix.beck@de.ibm.com>
+ * Holger Dengler <hd@linux.vnet.ibm.com>
*
* Adjunct processor bus header file.
*
@@ -72,7 +73,26 @@ struct ap_queue_status {
unsigned int int_enabled : 1;
unsigned int response_code : 8;
unsigned int pad2 : 16;
-};
+} __packed;
+
+#define AP_QUEUE_STATUS_INVALID \
+ { 1, 1, 1, 0xF, 1, 0xFF, 0xFFFF }
+
+static inline
+int ap_queue_status_invalid_test(struct ap_queue_status *status)
+{
+ struct ap_queue_status invalid = AP_QUEUE_STATUS_INVALID;
+ return !(memcmp(status, &invalid, sizeof(struct ap_queue_status)));
+}
+
+#define MAX_AP_FACILITY 31
+
+static inline int test_ap_facility(unsigned int function, unsigned int nr)
+{
+ if (nr > MAX_AP_FACILITY)
+ return 0;
+ return function & (unsigned int)(0x80000000 >> nr);
+}
#define AP_RESPONSE_NORMAL 0x00
#define AP_RESPONSE_Q_NOT_AVAIL 0x01