linux-kernel - [PATCH v4 0/2] Add support for Texas Instruments DTHE V2 crypto accelerator

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Message-ID: <20250508101723.846210-2-t-pratham@ti.com>
Date: Thu, 8 May 2025 15:37:39 +0530
From: T Pratham <t-pratham@...com>
To: Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller"
	<davem@...emloft.net>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: T Pratham <t-pratham@...com>, <linux-crypto@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Kamlesh
 Gurudasani <kamlesh@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Praneeth
 Bajjuri <praneeth@...com>,
        Manorit Chawdhry <m-chawdhry@...com>
Subject: [PATCH v4 0/2] Add support for Texas Instruments DTHE V2 crypto accelerator

This series adds support for TI DTHE V2 crypto accelerator. DTHE V2 is a
new crypto accelerator which contains multiple crypto IPs [1].
This series implements support for ECB and CBC modes of AES for the AES
Engine of the DTHE, using skcipher APIs of the kernel.

Tested with:
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y

and tcrypt,
sudo modprobe tcrypt mode=500 sec=1

Signed-off-by: T Pratham <t-pratham@...com>
---
[1]: Section 14.6.3 (DMA Control Registers -> DMASS_DTHE)
Link: https://www.ti.com/lit/ug/sprujb4/sprujb4.pdf

Change log:
v4:
 - Corrected dt-bindings example indentation
 - Simplified dt-bindings example, removing the node surrounding crypto
 - Fixed typo in dthev2-common.h header guard
 - Removed unused ctx field in dev_data struct
 - Moved per-op data into request context
v3:
 - Corrected dt-bindings reg length is too long error
 - Converted AES driver code to use crypto_engine APIs for using
   internal crypto queue instead of mutex.
 - Removed calls to skcipher_request_complete in paths not returning
   -EINPROGRESS before.
 - Added missing KConfig import, which was accidentally removed in v2.

v2:
 - Corrected dt-bindings syntax errors and other review comments in v1.
 - Completely changed driver code structure, splitting code into
   multiple files

Link to previous versions:
v3: https://lore.kernel.org/all/20250502121253.456974-2-t-pratham@ti.com/
v2: https://lore.kernel.org/all/20250411091321.2925308-1-t-pratham@ti.com/
v1: https://lore.kernel.org/all/20250206-dthe-v2-aes-v1-0-1e86cf683928@ti.com/
---
T Pratham (2):
  dt-bindings: crypto: Add binding for TI DTHE V2
  crypto: ti: Add driver for DTHE V2 AES Engine (ECB, CBC)

 .../bindings/crypto/ti,am62l-dthev2.yaml      |  50 ++
 MAINTAINERS                                   |   7 +
 drivers/crypto/Kconfig                        |   1 +
 drivers/crypto/Makefile                       |   1 +
 drivers/crypto/ti/Kconfig                     |  13 +
 drivers/crypto/ti/Makefile                    |   3 +
 drivers/crypto/ti/dthev2-aes.c                | 428 ++++++++++++++++++
 drivers/crypto/ti/dthev2-common.c             | 220 +++++++++
 drivers/crypto/ti/dthev2-common.h             | 111 +++++
 9 files changed, 834 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/ti,am62l-dthev2.yaml
 create mode 100644 drivers/crypto/ti/Kconfig
 create mode 100644 drivers/crypto/ti/Makefile
 create mode 100644 drivers/crypto/ti/dthev2-aes.c
 create mode 100644 drivers/crypto/ti/dthev2-common.c
 create mode 100644 drivers/crypto/ti/dthev2-common.h

-- 
2.43.0