[PATCH v3 8/9] drm/tegra: vic: Implement get_streamid_offset

Mikko Perttunen cyndis at kapsi.fi
Tue Feb 22 08:27:03 UTC 2022


On 2/21/22 22:10, Dmitry Osipenko wrote:
> 21.02.2022 14:44, Mikko Perttunen пишет:
>> On 2/19/22 20:54, Dmitry Osipenko wrote:
>>> 19.02.2022 21:49, Dmitry Osipenko пишет:
>>>> 18.02.2022 14:39, Mikko Perttunen пишет:
>>>>> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
>>>>> +{
>>>>> +    struct vic *vic = to_vic(client);
>>>>> +    int err;
>>>>> +
>>>>> +    err = vic_load_firmware(vic);
>>>>
>>>> You can't invoke vic_load_firmware() while RPM is suspended. Either
>>>> replace this with RPM get/put or do something else.
>>
>> Why not, I'm not seeing any HW accesses in vic_load_firmware? Although
>> it looks like it might race with the vic_load_firmware call in
>> vic_runtime_resume which probably needs to be fixed.
> 
> It was not clear from the function's name that h/w is untouched, I read
> "load" as "upload" and then looked at vic_runtime_resume(). I'd rename
> vic_load_firmware() to vic_prepare_firmware_image().
> 
> And yes, technically lock is needed.

Yep, I'll consider renaming it.

Mikko


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