linux-kernel - Re: [PATCH v2 16/29] venus: add a helper function to set dynamic buffer mode

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Date:   Thu, 31 May 2018 17:56:18 +0900
From:   Tomasz Figa <tfiga@...omium.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        vgarodia@...eaurora.org
Subject: Re: [PATCH v2 16/29] venus: add a helper function to set dynamic
 buffer mode

On Tue, May 15, 2018 at 5:05 PM Stanimir Varbanov
<stanimir.varbanov@...aro.org> wrote:
>
> Adds a new helper function to set dynamic buffer mode if it is
> supported by current HFI version.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> ---
>  drivers/media/platform/qcom/venus/helpers.c | 22 ++++++++++++++++++++++
>  drivers/media/platform/qcom/venus/helpers.h |  1 +
>  drivers/media/platform/qcom/venus/vdec.c    | 15 +++------------
>  3 files changed, 26 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index 1eda19adbf28..824ad4d2d064 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -522,6 +522,28 @@ int venus_helper_set_color_format(struct venus_inst *inst, u32 pixfmt)
>  }
>  EXPORT_SYMBOL_GPL(venus_helper_set_color_format);
>
> +int venus_helper_set_dyn_bufmode(struct venus_inst *inst)
> +{
> +       u32 ptype = HFI_PROPERTY_PARAM_BUFFER_ALLOC_MODE;
> +       struct hfi_buffer_alloc_mode mode;
> +       int ret;
> +
> +       if (!is_dynamic_bufmode(inst))
> +               return 0;
> +
> +       mode.type = HFI_BUFFER_OUTPUT;
> +       mode.mode = HFI_BUFFER_MODE_DYNAMIC;
> +
> +       ret = hfi_session_set_property(inst, ptype, &mode);
> +       if (ret)
> +               return ret;
> +
> +       mode.type = HFI_BUFFER_OUTPUT2;
> +
> +       return hfi_session_set_property(inst, ptype, &mode);

The function now sets HFI_BUFFER_OUTPUT2 in addition to
HFI_BUFFER_OUTPUT only, as set by orignal code. Is it intentional? I
guess we could have this mentioned in commit message.

Best regards,
Tomasz