diff mbox series

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

Message ID 20231214114239.2635325-12-quic_mdalam@quicinc.com
State New
Headers
Series Add cmd descriptor support |

Commit Message

Md Sadre Alam Dec. 14, 2023, 11:42 a.m. UTC 
  Add support for lock/unlock on bam pipe in aead.
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/aead.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/qce/aead.c b/drivers/crypto/qce/aead.c
index c03600f396be..0948c30ea515 100644
--- a/drivers/crypto/qce/aead.c
+++ b/drivers/crypto/qce/aead.c
@@ -42,6 +42,8 @@  static void qce_aead_done(void *data)
 	dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
 	dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;
 
+	qce_bam_release_lock(qce);
+
 	error = qce_dma_terminate_all(&qce->dma);
 	if (error)
 		dev_dbg(qce->dev, "aead dma termination error (%d)\n",
@@ -445,6 +447,8 @@  qce_aead_async_req_handle(struct crypto_async_request *async_req)
 	else
 		rctx->assoclen = req->assoclen;
 
+	qce_bam_acquire_lock(qce);
+
 	diff_dst = (req->src != req->dst) ? true : false;
 	dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
 	dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;