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crypto: atmel-aes - change the DMA threshold
author
Cyrille Pitchen
<cyrille.pitchen@atmel.com>
Thu, 17 Dec 2015 17:13:06 +0000
(18:13 +0100)
committer
Herbert Xu
<herbert@gondor.apana.org.au>
Wed, 23 Dec 2015 10:19:58 +0000
(18:19 +0800)
Increase the DMA threshold to 256: PIO accesses offer better performances
than the DMA when processing small amounts of data.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/atmel-aes.c
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diff --git
a/drivers/crypto/atmel-aes.c
b/drivers/crypto/atmel-aes.c
index a34919f6b7d7112ac693c9f6ba0a54211441ee89..ea645b4ee99744d2bd688c1db83f1cb31f0c43c3 100644
(file)
--- a/
drivers/crypto/atmel-aes.c
+++ b/
drivers/crypto/atmel-aes.c
@@
-76,7
+76,7
@@
#define ATMEL_AES_QUEUE_LENGTH 50
-#define ATMEL_AES_DMA_THRESHOLD
1
6
+#define ATMEL_AES_DMA_THRESHOLD
25
6
struct atmel_aes_caps {