linux-kernel - Re: [PATCH 2/2] venus: core: vote for video-mem icc path and change avg, peak bw

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Date:   Thu, 17 Sep 2020 07:14:55 +0530
From:   mansur@...eaurora.org
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org
Subject: Re: [PATCH 2/2] venus: core: vote for video-mem icc path and change
 avg, peak bw

> On 2020-09-09 00:08, Stephen Boyd wrote:
>> Quoting Mansur Alisha Shaik (2020-09-07 20:44:38)
>>> Currently we are voting for venus0-ebi path during buffer processing
>>> with an average bandwidth of all the instances and unvoting during
>>> session release.
>>> 
>>> While video streaming when we try to do XO-SD using the command
>>> "echo mem > /sys/power/state command" , device is not entering
>>> to suspend state and from interconnect summary seeing votes for 
>>> venus0-ebi
>>> 
>>> Corrected this by voting for venus0-ebi path in venus_runtime_resume
>> 
>> venus_runtime_resume() please so we know it's a function.
Changed to function like notation and RESEND v2
https://lore.kernel.org/patchwork/project/lkml/list/?series=463283
>> 
>>> and unvote during venus_runtime_suspend.
>> 
>> venus_runtime_suspend().
>> 
>>> 
>>> Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
>>> ---
>> 
>> Any Fixes: tag?
Added the Fixes tag
>> 
>>>  drivers/media/platform/qcom/venus/core.c | 10 +++++++++-
>>>  1 file changed, 9 insertions(+), 1 deletion(-)
>>> 
>>> diff --git a/drivers/media/platform/qcom/venus/core.c 
>>> b/drivers/media/platform/qcom/venus/core.c
>>> index 4857bbd..79d8600 100644
>>> --- a/drivers/media/platform/qcom/venus/core.c
>>> +++ b/drivers/media/platform/qcom/venus/core.c
>>> @@ -373,6 +373,10 @@ static __maybe_unused int 
>>> venus_runtime_suspend(struct device *dev)
>>>         if (ret)
>>>                 return ret;
>>> 
>>> +       ret = icc_set_bw(core->video_path, 0, 0);
>>> +       if (ret)
>>> +               return ret;
>>> +
>>>         return ret;
>>>  }
>>> 
>>> @@ -382,7 +386,11 @@ static __maybe_unused int 
>>> venus_runtime_resume(struct device *dev)
>>>         const struct venus_pm_ops *pm_ops = core->pm_ops;
>>>         int ret;
>>> 
>>> -       ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
>>> +       ret = icc_set_bw(core->video_path, kbps_to_icc(20000), 0);
>> 
>> This also shows that the arguments to icc_set_bw() we're backwards? 
>> Can
>> that be fixed in another patch instead of putting it in this one?
posted as another patch set.
https://lore.kernel.org/patchwork/project/lkml/list/?series=463283