[PATCH v2 09/16] crypto: qce - Add LOCK and UNLOCK flag support

Md Sadre Alam
2024-08-15T08:57:56Z

Add LOCK and UNLOCK flag support while preapring
command descriptor for writing crypto register.

Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
---

Change in [v2]

* No change

Change in [v1]

* Added initial support for lock/un-lock flag

drivers/crypto/qce/dma.c | 7 ++++++-
drivers/crypto/qce/dma.h | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/qce/dma.c b/drivers/crypto/qce/dma.c
index e4e672d65302..93d455d1d5b4 100644
--- a/drivers/crypto/qce/dma.c
+++ b/drivers/crypto/qce/dma.c
@@ -72,7 +72,12 @@ int qce_submit_cmd_desc(struct qce_device *qce, unsigned long flags)
unsigned long desc_flags;
int ret = 0;

- desc_flags = DMA_PREP_CMD;
+ if (flags & QCE_DMA_DESC_FLAG_LOCK)
+ desc_flags = DMA_PREP_CMD | DMA_PREP_LOCK;
+ else if (flags & QCE_DMA_DESC_FLAG_UNLOCK)
+ desc_flags = DMA_PREP_CMD | DMA_PREP_UNLOCK;
+ else
+ desc_flags = DMA_PREP_CMD;

/* For command descriptor always use consumer pipe
* it recomended as per HPG
diff --git a/drivers/crypto/qce/dma.h b/drivers/crypto/qce/dma.h
index f10991590b3f..ad8a18a720b1 100644
--- a/drivers/crypto/qce/dma.h
+++ b/drivers/crypto/qce/dma.h
@@ -19,6 +19,8 @@
#define QCE_BAM_CMD_ELEMENT_SIZE 64
#define QCE_DMA_DESC_FLAG_BAM_NWD (0x0004)
#define QCE_MAX_REG_READ 8
+#define QCE_DMA_DESC_FLAG_LOCK (0x0002)
+#define QCE_DMA_DESC_FLAG_UNLOCK (0x0001)

struct qce_result_dump {
u32 auth_iv[QCE_AUTHIV_REGS_CNT];
--
2.34.1