linux-kernel - Re: [PATCH v2 00/17] Enable Qualcomm Crypto Engine on sm8250

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Date:   Fri, 7 May 2021 16:14:34 -0500
From:   Rob Herring <robh@...nel.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org,
        Thara Gopinath <thara.gopinath@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Vinod Koul <vkoul@...nel.org>, dmaengine@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-crypto@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        bhupesh.linux@...il.com
Subject: Re: [PATCH v2 00/17]  Enable Qualcomm Crypto Engine on sm8250

On Thu, May 06, 2021 at 03:07:14AM +0530, Bhupesh Sharma wrote:
> 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]).
> 
> 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.
> 
> Cc: Thara Gopinath <thara.gopinath@...aro.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Andy Gross <agross@...nel.org>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Stephen Boyd <sboyd@...nel.org>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Vinod Koul <vkoul@...nel.org>
> Cc: dmaengine@...r.kernel.org
> Cc: linux-clk@...r.kernel.org
> Cc: linux-crypto@...r.kernel.org
> Cc: devicetree@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Cc: bhupesh.linux@...il.com
>  
> Bhupesh Sharma (14):
>   dt-bindings: qcom-bam: Add 'interconnects' & 'interconnect-names' to
>     optional properties
>   dt-bindings: qcom-bam: Add 'iommus' to required properties
>   dt-bindings: qcom-qce: Add 'iommus' to required properties
>   dt-bindings: qcom-qce: Add 'interconnects' and move 'clocks' to
>     optional properties
>   arm64/dts: qcom: sdm845: Use RPMH_CE_CLK macro directly
>   dt-bindings: crypto : Add new compatible strings for qcom-qce

Please convert these bindings to schemas.


>   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()
>   dma: qcom: bam_dma: Create a new header file for BAM DMA driver
>   crypto: qce: Defer probing if BAM dma is not yet initialized
>   crypto: qce: Defer probe in case interconnect 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   |  22 +-
>  .../devicetree/bindings/dma/qcom_bam_dma.txt  |   5 +
>  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                     | 112 +++++--
>  drivers/crypto/qce/core.h                     |   3 +
>  drivers/dma/qcom/bam_dma.c                    | 306 ++----------------
>  include/soc/qcom/bam_dma.h                    | 290 +++++++++++++++++
>  9 files changed, 457 insertions(+), 317 deletions(-)
>  create mode 100644 include/soc/qcom/bam_dma.h
> 
> -- 
> 2.30.2
>