linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sm6350: Add Crypto Engine

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZZguvdJTyVgfxm4D@gerhold.net>
Date: Fri, 5 Jan 2024 17:30:53 +0100
From: Stephan Gerhold <stephan@...hold.net>
To: Luca Weiss <luca.weiss@...rphone.com>
Cc: Andy Gross <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Thara Gopinath <thara.gopinath@...il.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Bhupesh Sharma <bhupesh.sharma@...aro.org>,
	~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
	linux-crypto@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sm6350: Add Crypto Engine

On Fri, Jan 05, 2024 at 05:15:44PM +0100, Luca Weiss wrote:
> Add crypto engine (CE) and CE BAM related nodes and definitions for this
> SoC.
> 
> For reference:
> 
>   [    2.297419] qcrypto 1dfa000.crypto: Crypto device found, version 5.5.1
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/sm6350.dtsi | 31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> index 8fd6f4d03490..516aadbb16bb 100644
> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
> @@ -1212,6 +1212,37 @@ ufs_mem_phy_lanes: phy@...7400 {
>  			};
>  		};
>  
> +		cryptobam: dma-controller@...4000 {
> +			compatible = "qcom,bam-v1.7.4", "qcom,bam-v1.7.0";
> +			reg = <0 0x01dc4000 0 0x24000>;
> +			interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
> +			#dma-cells = <1>;
> +			qcom,ee = <0>;
> +			qcom,controlled-remotely;
> +			num-channels = <16>;
> +			qcom,num-ees = <4>;
> +			iommus = <&apps_smmu 0x432 0x0000>,
> +				 <&apps_smmu 0x438 0x0001>,
> +				 <&apps_smmu 0x43f 0x0000>,
> +				 <&apps_smmu 0x426 0x0011>,
> +				 <&apps_smmu 0x436 0x0011>;

The last two lines look equivalent to me: 0x436 & ~0x0011 = 0x426.

It's also a bit weird that the mask has one more digit than the stream
ID. And ordered numerically (by stream ID, first number) it would be a
bit easier to read. :-)

Thanks,
Stephan