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

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Fri Nov 4 15:35:07 UTC 2022


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 at nvidia.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 at nvidia.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?

Best regards,
Krzysztof



More information about the dri-devel mailing list