From: Igal Liberman <igall@marvell.com>
Date: Thu, 15 Jun 2017 09:56:21 +0200
Subject: crypto: inside-secure - optimize DSE bufferability control
Git-commit: ee1fd870ee09ea5636b3d7a73769cd699241c77c
Patch-mainline: v4.13-rc1
References: fate#326470
Configure the data write bufferability to always buffer packets in the
DSE. This change slightly improves performance.
Signed-off-by: Igal Liberman <igall@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/crypto/inside-secure/safexcel.c | 1 +
drivers/crypto/inside-secure/safexcel.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 658b307c6a11..73f4ef8d71f3 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -329,6 +329,7 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv)
val = EIP197_HIA_DSE_CFG_DIS_DEBUG;
val |= EIP197_HIA_DxE_CFG_MIN_DATA_SIZE(7) | EIP197_HIA_DxE_CFG_MAX_DATA_SIZE(8);
val |= EIP197_HIA_DxE_CFG_DATA_CACHE_CTRL(WR_CACHE_3BITS);
+ val |= EIP197_HIA_DSE_CFG_ALLWAYS_BUFFERABLE;
val |= EIP197_HIA_DSE_CFG_EN_SINGLE_WR;
writel(val, priv->base + EIP197_HIA_DSE_CFG);
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index b8a81c568c99..7e3cbb9ac98e 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -139,6 +139,7 @@
#define EIP197_HIA_DxE_CFG_MIN_DATA_SIZE(n) ((n) << 0)
#define EIP197_HIA_DxE_CFG_DATA_CACHE_CTRL(n) (((n) & 0x7) << 4)
#define EIP197_HIA_DxE_CFG_MAX_DATA_SIZE(n) ((n) << 8)
+#define EIP197_HIA_DSE_CFG_ALLWAYS_BUFFERABLE GENMASK(15, 14)
#define EIP197_HIA_DxE_CFG_MIN_CTRL_SIZE(n) ((n) << 16)
#define EIP197_HIA_DxE_CFG_CTRL_CACHE_CTRL(n) (((n) & 0x7) << 20)
#define EIP197_HIA_DxE_CFG_MAX_CTRL_SIZE(n) ((n) << 24)
--
2.11.0