[PATCH v3 00/17] Enable Qualcomm Crypto Engine on sm8250

[Bhupesh Sharma]

Changes since v2:
=================
- v2 can be seen here: https://lore.kernel.org/dmaengine/20210505213731.538612-1-bhupesh.sharma@xxxxxxxxxx/
- Drop a couple of patches from v1, which tried to address the defered
  probing of qce driver in case bam dma driver is not yet probed.
  Replace it instead with a single (simpler) patch [PATCH 16/17].
- Convert bam dma and qce crypto dt-bindings to YAML.
- Addressed review comments from Thara, Bjorn, Vinod and Rob.

Changes since v1:
=================
- v1 can be seen here: https://lore.kernel.org/linux-arm-msm/20210310052503.3618486-1-bhupesh.sharma@xxxxxxxxxx/ 
- v1 did not work well as reported earlier by Dmitry, so v2 contains the following
  changes/fixes:
  ~ Enable the interconnect path b/w BAM DMA and main memory first
    before trying to access the BAM DMA registers.
  ~ Enable the interconnect path b/w qce crytpo and main memory first
    before trying to access the qce crypto registers.
  ~ Make sure to document the required and optional properties for both
    BAM DMA and qce crypto drivers.
  ~ Add a few debug related print messages in case the qce crypto driver
    passes or fails to probe.
  ~ Convert the qce crypto driver probe to a defered one in case the BAM DMA
    or the interconnect driver(s) (needed on specific Qualcomm parts) are not
    yet probed.

Qualcomm crypto engine is also available on sm8250 SoC.
It supports hardware accelerated algorithms for encryption
and authentication. It also provides support for aes, des, 3des
encryption algorithms and sha1, sha256, hmac(sha1), hmac(sha256)
authentication algorithms.

Tested the enabled crypto algorithms with cryptsetup test utilities
on sm8250-mtp and RB5 board (see [1]) and also with crypto self-tests,
including the fuzz tests (CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y).

While at it, also make a minor fix in 'sdm845.dtsi', to make
sure it confirms with the other .dtsi files which expose
crypto nodes on qcom SoCs.

Note that this series is rebased on AEAD fixes from Thara (see [2]).
This is required for all of the fuzz tests to work.

[1]. https://linux.die.net/man/8/cryptsetup
[2]. https://lore.kernel.org/linux-crypto/20210429150707.3168383-5-thara.gopinath@xxxxxxxxxx/T/

Cc: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Andy Gross <agross@xxxxxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Cc: Michael Turquette <mturquette@xxxxxxxxxxxx>
Cc: Vinod Koul <vkoul@xxxxxxxxxx>
Cc: dmaengine@xxxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
Cc: linux-crypto@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: bhupesh.linux@xxxxxxxxx
 
Bhupesh Sharma (14):
  dt-bindings: qcom-bam: Convert binding to YAML
  dt-bindings: qcom-bam: Add 'interconnects' & 'interconnect-names' to
    optional properties
  dt-bindings: qcom-bam: Add 'iommus' to required properties
  dt-bindings: qcom-qce: Convert bindings to yaml
  dt-bindings: qcom-qce: Add 'interconnects' and move 'clocks' to
    optional properties
  dt-bindings: qcom-qce: Add 'iommus' to required properties
  arm64/dts: qcom: sdm845: Use RPMH_CE_CLK macro directly
  dt-bindings: crypto : Add new compatible strings for qcom-qce
  arm64/dts: qcom: Use new compatibles for crypto nodes
  crypto: qce: Add new compatibles for qce crypto driver
  crypto: qce: Print a failure msg in case probe() fails
  crypto: qce: Convert the device found dev_dbg() to dev_info()
  crypto: qce: Defer probing if BAM dma channel is not yet initialized
  arm64/dts: qcom: sm8250: Add dt entries to support crypto engine.

Thara Gopinath (3):
  dma: qcom: bam_dma: Add support to initialize interconnect path
  crypto: qce: core: Add support to initialize interconnect path
  crypto: qce: core: Make clocks optional

 .../devicetree/bindings/crypto/qcom-qce.txt   |  25 ----
 .../devicetree/bindings/crypto/qcom-qce.yaml  |  92 +++++++++++++++
 .../devicetree/bindings/dma/qcom_bam_dma.txt  |  50 --------
 .../devicetree/bindings/dma/qcom_bam_dma.yaml | 110 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/ipq6018.dtsi         |   2 +-
 arch/arm64/boot/dts/qcom/sdm845.dtsi          |   6 +-
 arch/arm64/boot/dts/qcom/sm8250.dtsi          |  28 +++++
 drivers/crypto/qce/core.c                     | 110 ++++++++++++------
 drivers/crypto/qce/core.h                     |   3 +
 drivers/dma/qcom/bam_dma.c                    |  10 ++
 10 files changed, 322 insertions(+), 114 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/crypto/qcom-qce.txt
 create mode 100644 Documentation/devicetree/bindings/crypto/qcom-qce.yaml
 delete mode 100644 Documentation/devicetree/bindings/dma/qcom_bam_dma.txt
 create mode 100644 Documentation/devicetree/bindings/dma/qcom_bam_dma.yaml

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2.31.1