2022-04-10 02:12:53

by Yang Shen

[permalink] [raw]
Subject: [PATCH] crypto: hisilicon/sgl - align the hardware sgl dma address

The hardware needs aligned sgl dma address. So expend the sgl_size to
align 64 bytes.

Signed-off-by: Yang Shen <[email protected]>
---
drivers/crypto/hisilicon/sgl.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c
index f7efc02b065f..2b6f2281cfd6 100644
--- a/drivers/crypto/hisilicon/sgl.c
+++ b/drivers/crypto/hisilicon/sgl.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019 HiSilicon Limited. */
+#include <linux/align.h>
#include <linux/dma-mapping.h>
#include <linux/hisi_acc_qm.h>
#include <linux/module.h>
@@ -64,8 +65,9 @@ struct hisi_acc_sgl_pool *hisi_acc_create_sgl_pool(struct device *dev,
if (!dev || !count || !sge_nr || sge_nr > HISI_ACC_SGL_SGE_NR_MAX)
return ERR_PTR(-EINVAL);

- sgl_size = sizeof(struct acc_hw_sge) * sge_nr +
- sizeof(struct hisi_acc_hw_sgl);
+ sgl_size = ALIGN(sizeof(struct acc_hw_sge) * sge_nr +
+ sizeof(struct hisi_acc_hw_sgl),
+ HISI_ACC_SGL_ALIGN_SIZE);

/*
* the pool may allocate a block of memory of size PAGE_SIZE * 2^(MAX_ORDER - 1),
--
2.24.0