[PATCH v2 0/7] Asynchronous notifications from secure world

From: Jens Wiklander <jens.wiklander@linaro.org>
To: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	op-tee@lists.trustedfirmware.org, devicetree@vger.kernel.org,
	linux-doc@vger.kernel.org
Cc: Jerome Forissier <jerome@forissier.org>,
	Etienne Carriere <etienne.carriere@linaro.org>,
	Sumit Garg <sumit.garg@linaro.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Ard Biesheuvel <ardb@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Jens Wiklander <jens.wiklander@linaro.org>
Subject: [PATCH v2 0/7] Asynchronous notifications from secure world
Date: Wed, 16 Jun 2021 12:36:42 +0200	[thread overview]
Message-ID: <20210616103649.2662395-1-jens.wiklander@linaro.org> (raw)

Hi all,

This adds support for asynchronous notifications from OP-TEE in secure
world to the OP-TEE driver. This allows a design with a top half and bottom
half type of driver where the top half runs in secure interrupt context and
a notifications tells normal world to schedule a yielding call to do the
bottom half processing.

An interrupt is used to notify the driver that there are asynchronous
notifications pending.

v2:
* Added documentation
* Converted optee bindings to json-schema and added interrupt property
* Configure notification interrupt from DT instead of getting it
  from secure world, suggested by Ard Biesheuvel <ardb@kernel.org>.

Thanks,
Jens

Jens Wiklander (7):
  docs: staging/tee.rst: add a section on OP-TEE notifications
  dt-bindings: arm: Convert optee binding to json-schema
  dt-bindings: arm: optee: add interrupt property
  tee: fix put order in teedev_close_context()
  tee: add tee_dev_open_helper() primitive
  optee: separate notification functions
  optee: add asynchronous notifications

 .../bindings/arm/firmware/linaro,optee-tz.txt |  31 ---
 .../arm/firmware/linaro,optee-tz.yaml         |  57 +++++
 Documentation/staging/tee.rst                 |  27 +++
 drivers/tee/optee/Makefile                    |   1 +
 drivers/tee/optee/call.c                      |  27 +++
 drivers/tee/optee/core.c                      |  87 +++++--
 drivers/tee/optee/notif.c                     | 226 ++++++++++++++++++
 drivers/tee/optee/optee_msg.h                 |   9 +
 drivers/tee/optee/optee_private.h             |  23 +-
 drivers/tee/optee/optee_rpc_cmd.h             |  31 +--
 drivers/tee/optee/optee_smc.h                 |  75 +++++-
 drivers/tee/optee/rpc.c                       |  73 +-----
 drivers/tee/tee_core.c                        |  37 ++-
 include/linux/tee_drv.h                       |  27 +++
 14 files changed, 576 insertions(+), 155 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt
 create mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml
 create mode 100644 drivers/tee/optee/notif.c

-- 
2.31.1