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Date:   Mon, 12 Dec 2022 15:54:50 -0800
From:   Jakub Kicinski <kuba@kernel.org>
To:     Konrad Dybcio <konrad.dybcio@linaro.org>
Cc:     Alex Elder <elder@linaro.org>, davem@davemloft.net,
        edumazet@google.com, pabeni@redhat.com, andersson@kernel.org,
        agross@kernel.org, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, elder@kernel.org,
        linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Luca Weiss <luca.weiss@fairphone.com>
Subject: Re: [PATCH net-next 2/2] net: ipa: add IPA v4.7 support
Message-ID: <20221212155450.34fdae6b@kernel.org>
In-Reply-To: <48bef9dd-b71c-b6aa-e853-1cf821e88b50@linaro.org>
References: <20221208211529.757669-1-elder@linaro.org>
        <20221208211529.757669-3-elder@linaro.org>
        <47b2fb29-1c2e-db6e-b14f-6dfe90341825@linaro.org>
        <fa6d342e-0cfe-b870-b044-b0af476e3905@linaro.org>
        <48bef9dd-b71c-b6aa-e853-1cf821e88b50@linaro.org>
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On Sat, 10 Dec 2022 10:31:14 +0100 Konrad Dybcio wrote:
> >> which in total gives us 0x146a8000-0x146aafff =20
> >=20
> > Can you tell me where you found this information? =20
> [1], [2]
>=20
> >  =20
> >> That would also mean all of your writes are kind of skewed, unless
> >> you already applied some offsets to them. =20
> >=20
> > This region is used by the modem, but must be set up
> > by the AP.
> >  =20
> >> (IMEM on 6350 starts at 0x14680000 and is 0x2e000 long, as per
> >> the bootloader memory map) =20
> >=20
> > On SM7250 (sorry, I don't know about 7225, or 6350 for that matter),
> > the IMEM starts at 0x14680000 and has length 0x2c000.=C2=A0 However that
> > memory is used by multiple entities.=C2=A0 The portion set aside for IPA
> > starts at 0x146a9000 and has size 0x2000.
> >  =20
> Not sure how 7250 relates to 6350, but I don't think there's much
> overlap..

Dunno if Alex is online, and the patches seem harmless so let me apply
as is so that they make 6.2, and we can follow up with corrections.