From 8de8d4fe7d5a38e1ded234269f808898e72e9fb2 Mon Sep 17 00:00:00 2001 From: Kai Ye Date: Sat, 28 Aug 2021 11:39:38 +0800 Subject: crypto: hisilicon/qm - fix the uacce mmap failed 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 Signed-off-by: Herbert Xu --- drivers/crypto/hisilicon/qm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/crypto') diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index cf9ec5625a1e..88ec66b34766 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; -- cgit