linux-kernel - [PATCH v2 0/8] misc: fastrpc: Add missing DSP FastRPC features

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Date:   Thu,  9 Dec 2021 12:06:18 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     robh+dt@...nel.org, gregkh@...uxfoundation.org
Cc:     devicetree@...r.kernel.org, ekangupt@....qualcomm.com,
        jeyr@...eaurora.org, bkumar@....qualcomm.com,
        linux-kernel@...r.kernel.org, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v2 0/8] misc: fastrpc: Add missing DSP FastRPC features

This patchset adds below DSP FastRPC features that have been missing in
upstream fastrpc driver and also cleans up channel context structure with kref.

- Add ablity to reflect if the DSP domain is secure/unsecure by creating
 seperate device nodes for secured domain, this would used by SE policy
 to restrict applications loading process on the DSP.
- Add new IOCTL to get DSP capabilites
- Add IOCTL to support mapping memory on the DSP.

Tested this series on DragonBoard 845c with TensorFlow.

dt bindings patch has dependency this yaml conversion patch:
"dt-bindings: misc: fastrpc convert bindings to yaml"
https://lore.kernel.org/lkml/20211208101508.24582-1-david@ixit.cz/T/

Jeya R (6):
  misc: fastrpc: add remote process attributes
  misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP
  misc: fastrpc: Add support to get DSP capabilities
  dt-bindings: misc: add property to support non-secure DSP
  misc: fastrpc: check before loading process to the DSP
  arm64: dts: qcom: add non-secure domain property to fastrpc nodes

Srinivas Kandagatla (2):
  misc: fastrpc: separate fastrpc device from channel context
  misc: fastrpc: add secure domain support

 .../bindings/misc/qcom,fastrpc.yaml           |   5 +
 arch/arm64/boot/dts/qcom/msm8916.dtsi         |   1 +
 arch/arm64/boot/dts/qcom/sdm845.dtsi          |   2 +
 arch/arm64/boot/dts/qcom/sm8150.dtsi          |   3 +
 arch/arm64/boot/dts/qcom/sm8250.dtsi          |   3 +
 arch/arm64/boot/dts/qcom/sm8350.dtsi          |   3 +
 drivers/misc/fastrpc.c                        | 390 +++++++++++++++++-
 include/uapi/misc/fastrpc.h                   |  76 ++++
 8 files changed, 470 insertions(+), 13 deletions(-)

-- 
2.21.0