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Subject: Re: [PATCH v4 00/20] Enable Qualcomm Crypto Engine on sm8250
To:     Bhupesh Sharma <bhupesh.sharma@linaro.org>,
        linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org
Cc:     bhupesh.linux@gmail.com, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, robh+dt@kernel.org, agross@kernel.org,
        herbert@gondor.apana.org.au, davem@davemloft.net,
        Bjorn Andersson <bjorn.andersson@linaro.org>
References: <20211013105541.68045-1-bhupesh.sharma@linaro.org>
From:   Thara Gopinath <thara.gopinath@linaro.org>
Message-ID: <a5927363-5e2f-9af1-7446-2146fd455f36@linaro.org>
Date:   Wed, 20 Oct 2021 10:03:24 -0400
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On 10/13/21 6:55 AM, Bhupesh Sharma wrote:
> Sorry for a delayed v4, but I have been caught up with some other
> patches.

Hi Bhupesh,

If possible, please consider splitting this series into 2. One with 
changes required to support crypto driver on
sm8250 and other with the generic fixes / fixing the dt-bindings et all.
It would be easier to review as well

-- 
Warm Regards
Thara (She/Her/Hers)

> 
> Changes since v3:
> =================
> - v3 can be seen here: https://lore.kernel.org/linux-arm-msm/20210519143700.27392-1-bhupesh.sharma@linaro.org/
> - Dropped a couple of patches from v3, on basis of the review comments:
>     ~ [PATCH 13/17] crypto: qce: core: Make clocks optional
>     ~ [PATCH 15/17] crypto: qce: Convert the device found dev_dbg() to dev_info()
> - Addressed review comments from Thara, Rob and Stephan Gerhold.
> - Collect Reviewed-by from Rob and Thara on some of the patches from the
>    v3 patchset.
> 
> Changes since v2:
> =================
> - v2 can be seen here: https://lore.kernel.org/dmaengine/20210505213731.538612-1-bhupesh.sharma@linaro.org/
> - 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@linaro.org/
> - 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).
> 
> Note that this series is rebased on a SMMU related fix from Arnd applied
> on either linus's tip of linux-next's tip (see [2]), without which
> the sm8250 based boards fail to boot with the latest tip.
> 
> [1]. https://linux.die.net/man/8/cryptsetup
> [2]. https://lore.kernel.org/linux-arm-kernel/CAA8EJpoD4Th1tdwYQLnZur2oA0xX0LojSrNFLyJqdi6+rnB3YQ@mail.gmail.com/T/
> 
> Cc: Thara Gopinath <thara.gopinath@linaro.org>
> Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
> Cc: Rob Herring <robh+dt@kernel.org>
> 
> Bhupesh Sharma (17):
>    arm64/dts: qcom: Fix 'dma' & 'qcom,controlled-remotely' nodes in dts
>    arm64/dts: qcom: ipq6018: Remove unused 'qcom,config-pipe-trust-reg'
>      property
>    arm64/dts: qcom: ipq6018: Remove unused 'iface_clk' property from
>      dma-controller node
>    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 optional 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 optional 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: Defer probing if BAM dma channel is not yet initialized
>    crypto: qce: Add 'sm8250-qce' compatible string check
>    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.yaml  |  90 +++++++++++++++
>   .../devicetree/bindings/dma/qcom_bam_dma.txt  |  50 --------
>   .../devicetree/bindings/dma/qcom_bam_dma.yaml | 107 ++++++++++++++++++
>   arch/arm64/boot/dts/qcom/ipq6018.dtsi         |  10 +-
>   arch/arm64/boot/dts/qcom/ipq8074.dtsi         |   4 +-
>   arch/arm64/boot/dts/qcom/msm8996.dtsi         |   4 +-
>   arch/arm64/boot/dts/qcom/msm8998.dtsi         |   2 +-
>   arch/arm64/boot/dts/qcom/sdm845.dtsi          |  10 +-
>   arch/arm64/boot/dts/qcom/sm8250.dtsi          |  28 +++++
>   drivers/crypto/qce/core.c                     |  66 +++++++----
>   drivers/crypto/qce/core.h                     |   1 +
>   drivers/dma/qcom/bam_dma.c                    |  16 ++-
>   12 files changed, 302 insertions(+), 86 deletions(-)
>   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
>