linux-kernel - Re: [PATCH v3 1/8] memory: tegra: Add API for retrieving carveout bounds

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Message-ID: <3a783b8d-4970-663f-816a-15aad5a66a48@nvidia.com>
Date:   Fri, 4 Nov 2022 15:46:03 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Mikko Perttunen <cyndis@...si.fi>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mikko Perttunen <mperttunen@...dia.com>,
        Ashish Mhetre <amhetre@...dia.com>,
        Sameer Pujar <spujar@...dia.com>,
        dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/8] memory: tegra: Add API for retrieving carveout
 bounds


On 04/11/2022 15:35, Krzysztof Kozlowski wrote:
> On 04/11/2022 11:33, Jon Hunter wrote:
>> Hi Thierry, Krzysztof,
>>
>> On 24/10/2022 14:15, Thierry Reding wrote:
>>> On Tue, Sep 20, 2022 at 11:11:56AM +0300, Mikko Perttunen wrote:
>>>> From: Mikko Perttunen <mperttunen@...dia.com>
>>>>
>>>> On Tegra234 NVDEC firmware is loaded from a secure carveout, where it
>>>> has been loaded by a bootloader. When booting NVDEC, we need to tell it
>>>> the address of this firmware, which we can determine by checking the
>>>> starting address of the carveout. As such, add an MC API to query the
>>>> bounds of carveouts, and add related information on Tegra234.
>>>>
>>>> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
>>>> ---
>>>> v2:
>>>> - Add check for 64-bit phys_addr_t. In practice phys_addr_t
>>>>     is always 64 bits where this runs, but it avoids warnings in
>>>>     compile test.
>>>> ---
>>>>    drivers/memory/tegra/mc.c       | 25 +++++++++++++++++++++++++
>>>>    drivers/memory/tegra/tegra234.c |  5 +++++
>>>>    include/soc/tegra/mc.h          | 11 +++++++++++
>>>>    3 files changed, 41 insertions(+)
>>>
>>> Krzysztof,
>>>
>>> I've applied this to the same tree as the patch that uses it for now.
>>> Let me know if you want me to put this on a separate stable branch for
>>> you to pull in.
>>
>> Any update on this?
> 
> What kind of update do you expect?

Ha! I guess I should be more explicit :-)

Well, I would like to see this change in -next and so I was hoping that 
you would respond to the above to indicate how you would like to pull 
this in.

Cheers!
Jon

-- 
nvpublic