diff mbox series

[17/37] crypto: fsl: blob: Flush dcache range for destination address

Message ID 20210325093036.3270101-18-peng.fan@oss.nxp.com
State Accepted
Commit a30798113c6f5919708cc849798a583d6e5aad53
Delegated to: Stefano Babic
Headers show
Series imx: hab/caam new feature and update | expand

Commit Message

Peng Fan (OSS) March 25, 2021, 9:30 a.m. UTC 
From: Breno Lima <breno.lima@nxp.com>

The blob command is not working on i.MX7D, i.MX8MQ and i.MX8MM
devices.

Due to different cache management it's necessary to flush dcache
range for destination address so data can be available in memory.

Add necessary operations in blob_encap() and blob_decap() functions.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/crypto/fsl/fsl_blob.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/fsl/fsl_blob.c b/drivers/crypto/fsl/fsl_blob.c
index d6bd861251..e8202cc569 100644
--- a/drivers/crypto/fsl/fsl_blob.c
+++ b/drivers/crypto/fsl/fsl_blob.c
@@ -65,6 +65,9 @@  int blob_decap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
 	flush_dcache_range((unsigned long)desc,
 			   (unsigned long)desc + size);
 
+	flush_dcache_range((unsigned long)dst,
+			   (unsigned long)dst + size);
+
 	ret = run_descriptor_jr(desc);
 
 	if (ret) {
@@ -130,6 +133,9 @@  int blob_encap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
 	flush_dcache_range((unsigned long)desc,
 			   (unsigned long)desc + size);
 
+	flush_dcache_range((unsigned long)dst,
+			   (unsigned long)dst + size);
+
 	ret = run_descriptor_jr(desc);
 
 	if (ret) {