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Date: Fri, 23 Jul 2021 11:44:16 +0200 From: Jens Wiklander <jens.wiklander@...aro.org> To: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, op-tee@...ts.trustedfirmware.org, devicetree@...r.kernel.org, linux-doc@...r.kernel.org Cc: Jerome Forissier <jerome@...issier.org>, Etienne Carriere <etienne.carriere@...aro.org>, Sumit Garg <sumit.garg@...aro.org>, Vincent Guittot <vincent.guittot@...aro.org>, Rob Herring <robh+dt@...nel.org>, Jonathan Corbet <corbet@....net>, Ard Biesheuvel <ardb@...nel.org>, Marc Zyngier <maz@...nel.org>, Jens Wiklander <jens.wiklander@...aro.org> Subject: [PATCH v3 0/6] Asynchronous notifications from secure world 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->v3: * Rebased on v5.14-rc2 which made the patch "dt-bindings: arm: Convert optee binding to json-schema" from the V2 patch set obsolete. * Applied Ard's Acked-by on "optee: add asynchronous notifications" v1->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@...nel.org>. Thanks, Jens Jens Wiklander (6): docs: staging/tee.rst: add a section on OP-TEE notifications 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 .../arm/firmware/linaro,optee-tz.yaml | 4 + 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 +++ 13 files changed, 523 insertions(+), 124 deletions(-) create mode 100644 drivers/tee/optee/notif.c -- 2.31.1
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