linux-kernel - Re: [PATCH v4 04/12] soc: qcom: mdtloader: Add PAS context aware qcom_mdt_pas

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Message-ID: <20251008073553.qnjvb76ygkd6rybj@hu-mojha-hyd.qualcomm.com>
Date: Wed, 8 Oct 2025 13:05:53 +0530
From: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
To: Manivannan Sadhasivam <mani@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 04/12] soc: qcom: mdtloader: Add PAS context aware
 qcom_mdt_pas_load() function

On Tue, Oct 07, 2025 at 02:29:20PM -0700, Manivannan Sadhasivam wrote:
> On Tue, Oct 07, 2025 at 10:18:49PM +0530, Mukesh Ojha wrote:
> > Add a PAS context-aware qcom_mdt_pas_load() function for remote
> > processor drivers, which can use the context pointer returned from
> > qcom_scm_pas_ctx_init() to perform metadata verification and memory
> > setup via SMC calls.
> > 
> > The qcom_mdt_pas_load() and qcom_mdt_load() functions are almost
> > similar. Clients using the PAS context-based data structure can adopt
> > qcom_mdt_pas_load(), and in the future, all users of qcom_mdt_load()
> > could be migrated to use qcom_mdt_pas_load() instead.
> > 
> > Signed-off-by: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
> > ---
> >  drivers/soc/qcom/mdt_loader.c       | 29 +++++++++++++++++++++++++++++
> >  include/linux/soc/qcom/mdt_loader.h | 11 +++++++++++
> >  2 files changed, 40 insertions(+)
> > 
> > diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
> > index a5c80d4fcc36..31855836b251 100644
> > --- a/drivers/soc/qcom/mdt_loader.c
> > +++ b/drivers/soc/qcom/mdt_loader.c
> > @@ -486,5 +486,34 @@ int qcom_mdt_load_no_init(struct device *dev, const struct firmware *fw,
> >  }
> >  EXPORT_SYMBOL_GPL(qcom_mdt_load_no_init);
> >  
> > +/**
> > + * qcom_mdt_pas_load() - load the firmware which header is loaded as fw
> > + *
> 
> Could you please reword it to make it clear?

Sure.

> 
> - Mani
> 
> -- 
> மணிவண்ணன் சதாசிவம்

-- 
-Mukesh Ojha