From: Kai Ye <yekai13@huawei.com>
Date: Tue, 5 Jan 2021 06:12:03 +0000 (+0800)
Subject: crypto: hisilicon/qm - SVA bugfixed on Kunpeng920
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0d61c3f1449a70fbf70f99648c4075b1e758be4d;p=linux.git

crypto: hisilicon/qm - SVA bugfixed on Kunpeng920

Kunpeng920 SEC/HPRE/ZIP cannot support running user space SVA and kernel
Crypto at the same time. Therefore, the algorithms should not be registered
to Crypto as user space SVA is enabled.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index f21ccae0e8ea8..10a04ab15570e 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -4004,6 +4004,9 @@ int hisi_qm_alg_register(struct hisi_qm *qm, struct hisi_qm_list *qm_list)
 {
 	int flag = 0;
 	int ret = 0;
+	/* HW V2 not support both use uacce sva mode and hardware crypto algs */
+	if (qm->ver <= QM_HW_V2 && qm->use_sva)
+		return 0;
 
 	mutex_lock(&qm_list->lock);
 	if (list_empty(&qm_list->list))
@@ -4035,6 +4038,9 @@ EXPORT_SYMBOL_GPL(hisi_qm_alg_register);
  */
 void hisi_qm_alg_unregister(struct hisi_qm *qm, struct hisi_qm_list *qm_list)
 {
+	if (qm->ver <= QM_HW_V2 && qm->use_sva)
+		return;
+
 	mutex_lock(&qm_list->lock);
 	list_del(&qm->list);
 	mutex_unlock(&qm_list->lock);