Commit 66192b2e authored by Kai Ye's avatar Kai Ye Committed by Herbert Xu
Browse files

crypto: hisilicon/sec - fix the process of disabling sva prefetching 



The open interface of the sva prefetching function is distinguish the chip
version. But the close interface of the sva prefetching function doesn't
distinguish the chip version. As a result, the sva prefetching close
operation is also performed on Kunpeng920, those registers are important
on Kunpeng920, which eventually leads to abnormal hardware problems. So
need to fix it immediately.

Signed-off-by: default avatarKai Ye <yekai13@huawei.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e29dd5c8

drivers/crypto/hisilicon/sec2/sec_main.c

+3 −0
Original line number Diff line number Diff line
@@ -364,6 +364,9 @@ static void sec_close_sva_prefetch(struct hisi_qm *qm) 
	u32 val;

	int ret;



	if (qm->ver < QM_HW_V3)

		return;



	val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);

	val |= SEC_PREFETCH_DISABLE;

	writel(val, qm->io_base + SEC_PREFETCH_CFG);