Commit 93a5a99e authored by Weili Qian's avatar Weili Qian Committed by JiangShui
Browse files

crypto: hisilicon/qm - remove unneeded hardware cache write back 

mainline inclusion
from mainline-v6.1-rc1
commit 6a088a2c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8FI6W
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6a088a2cbcaf40747cf2881df47f4f5d65acd7ab



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Data in the hardware cache needs to be written back to the memory
before the queue memory is released. Currently, the queue memory is
applied for when the driver is loaded and released when the driver is
removed. Therefore, the hardware cache does not need to be written back
when process puts queue.

Signed-off-by: default avatarWeili Qian <qianweili@huawei.com>
Signed-off-by: default avatarYang Shen <shenyang39@huawei.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarJiangShui Yang <yangjiangshui@h-partners.com>
parent 12eec1ba

drivers/crypto/hisilicon/qm.c

+0 −1
Original line number Diff line number Diff line
@@ -2428,7 +2428,6 @@ static void hisi_qm_uacce_put_queue(struct uacce_queue *q) 
{

	struct hisi_qp *qp = q->priv;



	hisi_qm_cache_wb(qp->qm);

	hisi_qm_release_qp(qp);

}