diff mbox series

[10/11] crypto: qce - Add support for lock/unlock in sha

Message ID 20231214114239.2635325-11-quic_mdalam@quicinc.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Add cmd descriptor support | expand

Commit Message

Md Sadre Alam Dec. 14, 2023, 11:42 a.m. UTC 
Add support for lock/unlock on bam pipe in sha.
If multiple EE's(Execution Environment) try to access
the same crypto engine then before accessing the crypto
engine EE's has to lock the bam pipe and then submit the
request to crypto engine. Once request done then EE's has
to unlock the bam pipe so that others EE's can access the
crypto engine.

Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
---
 drivers/crypto/qce/sha.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index f850c6206a31..942aecbb0736 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -47,6 +47,8 @@  static void qce_ahash_done(void *data)
 	int error;
 	u32 status;
 
+	qce_bam_release_lock(qce);
+
 	error = qce_dma_terminate_all(&qce->dma);
 	if (error)
 		dev_dbg(qce->dev, "ahash dma termination error (%d)\n", error);
@@ -102,6 +104,8 @@  static int qce_ahash_async_req_handle(struct crypto_async_request *async_req)
 		rctx->authklen = AES_KEYSIZE_128;
 	}
 
+	qce_bam_acquire_lock(qce);
+
 	rctx->src_nents = sg_nents_for_len(req->src, req->nbytes);
 	if (rctx->src_nents < 0) {
 		dev_err(qce->dev, "Invalid numbers of src SG.\n");