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

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Date:   Tue, 08 Sep 2020 11:38:17 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Mansur Alisha Shaik <mansur@...eaurora.org>,
        linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org,
        Mansur Alisha Shaik <mansur@...eaurora.org>
Subject: Re: [PATCH 2/2] venus: core: vote for video-mem icc path and change avg, peak bw

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.

> and unvote during venus_runtime_suspend.

venus_runtime_suspend().

> 
> Signed-off-by: Mansur Alisha Shaik <mansur@...eaurora.org>
> ---

Any 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?