linux-kernel - Re: [PATCH 8/9] ARM: dts: qcom: apq8064: use new compatible for SPS SIC device

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: <p4hda4puovabvqnf3unge2rifzu37hgim2k4fnvdpbekhojzq5@cx7j4hrspzdy>
Date: Tue, 18 Mar 2025 14:26:46 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        James Clark <james.clark@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...ux.dev>, Kumar Gala <galak@...eaurora.org>,
        Andy Gross <agross@...eaurora.org>,
        "Ivan T. Ivanov" <ivan.ivanov@...aro.org>,
        Andy Gross <andy.gross@...aro.org>, Georgi Djakov <djakov@...nel.org>,
        David Heidelberg <david@...t.cz>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 8/9] ARM: dts: qcom: apq8064: use new compatible for SPS
 SIC device

On Tue, Mar 18, 2025 at 01:13:23PM +0100, Konrad Dybcio wrote:
> On 3/17/25 6:44 PM, Dmitry Baryshkov wrote:
> > Use new SoC-specific compatible to the SPS SIC in addition to the
> > "syscon" compatible and rename the node to follow the purpose of it.
> > 
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> > ---
> >  arch/arm/boot/dts/qcom/qcom-apq8064.dtsi | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
> > index 522387700fc8ce854c0995636998d2d4237e33df..a106f9f984fcb51dea1fff1515e6f290b36ccf99 100644
> > --- a/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
> > +++ b/arch/arm/boot/dts/qcom/qcom-apq8064.dtsi
> > @@ -402,8 +402,8 @@ saw3_vreg: regulator {
> >  			};
> >  		};
> >  
> > -		sps_sic_non_secure: sps-sic-non-secure@...00000 {
> > -			compatible = "syscon";
> > +		sps_sic_non_secure: interrupt-controller@...00000 {
> 
> The register that the consumer of this points to doesn't seem to exist..

It does, although it is marked as reserved. And this matches msm-3.4:

                .smsm_int.out_bit_pos =  1,
                .smsm_int.out_base = (void __iomem *)MSM_SIC_NON_SECURE_BASE,
                .smsm_int.out_offset = 0x4094,

#define MSM_SIC_NON_SECURE_BASE IOMEM(0xFA600000)
#define MSM_SIC_NON_SECURE_PHYS 0x12100000
#define MSM_SIC_NON_SECURE_SIZE SZ_64K

I don't think anybody tried bringing up dsps on APQ8064 though.

-- 
With best wishes
Dmitry