arm64: dts: qcom: msm8996: Add device tree entries to support crypto engine

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The change adds description of Qualcomm crypto engine controller and
BAM associated with it. The change is inspired by commit 3e482859f1
("dts: qcom: sdm845: Add dt entries to support crypto engine.")

While performance of cryptographic algorithms executed on QCE is lower
than e.g. ones tinkered for ARM NEON, the offloaded execution would
make sense:

    # cryptsetup benchmark | grep aes
    aes-cbc        128b        71.0 MiB/s        71.9 MiB/s
    aes-cbc        256b        62.4 MiB/s        62.4 MiB/s
    aes-xts        256b        70.7 MiB/s        70.8 MiB/s
    aes-xts        512b        62.0 MiB/s        63.3 MiB/s

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Cc: Thara Gopinath <thara.gopinath@linaro.org>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211011094822.1580122-1-vladimir.zapolskiy@linaro.org

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Vladimir Zapolskiy 2021-10-11 12:48:22 +03:00 • committed by Bjorn Andersson

parent bb270c86ec

commit ef062eb675

1 changed files with 22 additions and 0 deletions

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arch/arm64/boot/dts/qcom/msm8996.dtsi

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