diff mbox series

[1/2] crypto: hisilicon/qm - fix the uacce mmap failed

Message ID 1630121979-53760-2-git-send-email-yekai13@huawei.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: hisilicon/qm - Support the userspace task resetting | expand

Commit Message

yekai (A) Aug. 28, 2021, 3:39 a.m. UTC 
Allocate an extra memory page for qp. This extra page is
used to set the device or qp status. But this page not
be used currently. Meanwhile it leads to dus size not equal
to mmap size as using uacce sva mode, and cause the app task
broken.

Signed-off-by: Kai Ye <yekai13@huawei.com>
---
 drivers/crypto/hisilicon/qm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 369562d..2bd25bf 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -3122,8 +3122,10 @@  static int qm_alloc_uacce(struct hisi_qm *qm)
 	else
 		mmio_page_nr = qm->db_interval / PAGE_SIZE;
 
+	/* Add one more page for device or qp status */
 	dus_page_nr = (PAGE_SIZE - 1 + qm->sqe_size * QM_Q_DEPTH +
-		       sizeof(struct qm_cqe) * QM_Q_DEPTH) >> PAGE_SHIFT;
+		       sizeof(struct qm_cqe) * QM_Q_DEPTH  + PAGE_SIZE) >>
+					 PAGE_SHIFT;
 
 	uacce->qf_pg_num[UACCE_QFRT_MMIO] = mmio_page_nr;
 	uacce->qf_pg_num[UACCE_QFRT_DUS]  = dus_page_nr;