1 files changed, 52 insertions, 10 deletions

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 4170c24c2ed1..d05ad2b16d0a 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -301,6 +301,13 @@ enum qm_basic_type {
 	QM_VF_IRQ_NUM_CAP,
 };
 
+enum qm_pre_store_cap_idx {
+	QM_EQ_IRQ_TYPE_CAP_IDX = 0x0,
+	QM_AEQ_IRQ_TYPE_CAP_IDX,
+	QM_ABN_IRQ_TYPE_CAP_IDX,
+	QM_PF2VF_IRQ_TYPE_CAP_IDX,
+};
+
 static const struct hisi_qm_cap_info qm_cap_info_comm[] = {
 	{QM_SUPPORT_DB_ISOLATION, 0x30,   0, BIT(0),  0x0, 0x0, 0x0},
 	{QM_SUPPORT_FUNC_QOS,     0x3100, 0, BIT(8),  0x0, 0x0, 0x1},
@@ -330,6 +337,13 @@ static const struct hisi_qm_cap_info qm_basic_info[] = {
 	{QM_VF_IRQ_NUM_CAP,     0x311c,   0,  GENMASK(15, 0), 0x1,       0x2,       0x3},
 };
 
+static const u32 qm_pre_store_caps[] = {
+	QM_EQ_IRQ_TYPE_CAP,
+	QM_AEQ_IRQ_TYPE_CAP,
+	QM_ABN_IRQ_TYPE_CAP,
+	QM_PF2VF_IRQ_TYPE_CAP,
+};
+
 struct qm_mailbox {
 	__le16 w0;
 	__le16 queue_num;
@@ -4774,7 +4788,7 @@ static void qm_unregister_abnormal_irq(struct hisi_qm *qm)
 	if (qm->fun_type == QM_HW_VF)
 		return;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_ABN_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_ABN_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_ABN_IRQ_TYPE_MASK))
 		return;
 
@@ -4791,7 +4805,7 @@ static int qm_register_abnormal_irq(struct hisi_qm *qm)
 	if (qm->fun_type == QM_HW_VF)
 		return 0;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_ABN_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_ABN_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_ABN_IRQ_TYPE_MASK))
 		return 0;
 
@@ -4808,7 +4822,7 @@ static void qm_unregister_mb_cmd_irq(struct hisi_qm *qm)
 	struct pci_dev *pdev = qm->pdev;
 	u32 irq_vector, val;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_PF2VF_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_PF2VF_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return;
 
@@ -4822,7 +4836,7 @@ static int qm_register_mb_cmd_irq(struct hisi_qm *qm)
 	u32 irq_vector, val;
 	int ret;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_PF2VF_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_PF2VF_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return 0;
 
@@ -4839,7 +4853,7 @@ static void qm_unregister_aeq_irq(struct hisi_qm *qm)
 	struct pci_dev *pdev = qm->pdev;
 	u32 irq_vector, val;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_AEQ_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_AEQ_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return;
 
@@ -4853,7 +4867,7 @@ static int qm_register_aeq_irq(struct hisi_qm *qm)
 	u32 irq_vector, val;
 	int ret;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_AEQ_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_AEQ_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return 0;
 
@@ -4871,7 +4885,7 @@ static void qm_unregister_eq_irq(struct hisi_qm *qm)
 	struct pci_dev *pdev = qm->pdev;
 	u32 irq_vector, val;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_EQ_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_EQ_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return;
 
@@ -4885,7 +4899,7 @@ static int qm_register_eq_irq(struct hisi_qm *qm)
 	u32 irq_vector, val;
 	int ret;
 
-	val = hisi_qm_get_hw_info(qm, qm_basic_info, QM_EQ_IRQ_TYPE_CAP, qm->cap_ver);
+	val = qm->cap_tables.qm_cap_table[QM_EQ_IRQ_TYPE_CAP_IDX].cap_val;
 	if (!((val >> QM_IRQ_TYPE_SHIFT) & QM_IRQ_TYPE_MASK))
 		return 0;
 
@@ -4973,7 +4987,29 @@ static int qm_get_qp_num(struct hisi_qm *qm)
 	return 0;
 }
 
-static void qm_get_hw_caps(struct hisi_qm *qm)
+static int qm_pre_store_irq_type_caps(struct hisi_qm *qm)
+{
+	struct hisi_qm_cap_record *qm_cap;
+	struct pci_dev *pdev = qm->pdev;
+	size_t i, size;
+
+	size = ARRAY_SIZE(qm_pre_store_caps);
+	qm_cap = devm_kzalloc(&pdev->dev, sizeof(*qm_cap) * size, GFP_KERNEL);
+	if (!qm_cap)
+		return -ENOMEM;
+
+	for (i = 0; i < size; i++) {
+		qm_cap[i].type = qm_pre_store_caps[i];
+		qm_cap[i].cap_val = hisi_qm_get_hw_info(qm, qm_basic_info,
+							qm_pre_store_caps[i], qm->cap_ver);
+	}
+
+	qm->cap_tables.qm_cap_table = qm_cap;
+
+	return 0;
+}
+
+static int qm_get_hw_caps(struct hisi_qm *qm)
 {
 	const struct hisi_qm_cap_info *cap_info = qm->fun_type == QM_HW_PF ?
 						  qm_cap_info_pf : qm_cap_info_vf;
@@ -5004,6 +5040,9 @@ static void qm_get_hw_caps(struct hisi_qm *qm)
 		if (val)
 			set_bit(cap_info[i].type, &qm->caps);
 	}
+
+	/* Fetch and save the value of irq type related capability registers */
+	return qm_pre_store_irq_type_caps(qm);
 }
 
 static int qm_get_pci_res(struct hisi_qm *qm)
@@ -5025,7 +5064,10 @@ static int qm_get_pci_res(struct hisi_qm *qm)
 		goto err_request_mem_regions;
 	}
 
-	qm_get_hw_caps(qm);
+	ret = qm_get_hw_caps(qm);
+	if (ret)
+		goto err_ioremap;
+
 	if (test_bit(QM_SUPPORT_DB_ISOLATION, &qm->caps)) {
 		qm->db_interval = QM_QP_DB_INTERVAL;
 		qm->db_phys_base = pci_resource_start(pdev, PCI_BAR_4);