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

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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: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kai Ye 2021-06-26 10:50:33 +08:00 committed by Herbert Xu
parent e29dd5c838
commit 66192b2e3f
1 changed files with 3 additions and 0 deletions
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3
drivers/crypto/hisilicon/sec2/sec_main.c
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@ -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);