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| author | Kai Ye <yekai13@huawei.com> | 2021-06-26 10:50:33 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-06-28 11:28:09 +0800 |
| commit | 66192b2e3fd8ab97ed518d6c0240e26655a20b4b (patch) | |
| tree | 1d4e9380442a2898ee92c81ce7adb6d4b2a3b1d8 /drivers/crypto | |
| parent | e29dd5c8382e39210a180b75b68912f536893ef0 (diff) | |
| download | lwn-66192b2e3fd8ab97ed518d6c0240e26655a20b4b.tar.gz lwn-66192b2e3fd8ab97ed518d6c0240e26655a20b4b.zip | |
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: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/sec2/sec_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c index d120ce3e34ed..490db7bccf61 100644 --- a/drivers/crypto/hisilicon/sec2/sec_main.c +++ b/drivers/crypto/hisilicon/sec2/sec_main.c @@ -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); |