linux-kernel - Re: [PATCH 1/5] media: venus: Add codec data table

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Date:   Mon, 17 Jun 2019 11:37:00 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Aniket Masule <amasule@...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
Subject: Re: [PATCH 1/5] media: venus: Add codec data table

Hi Aniket,

On 6/11/19 9:05 AM, Aniket Masule wrote:
> Add vpp cycles for for different types of codec
> It indicates the cycles required by video hardware
> to process each macroblock.
> 
> Signed-off-by: Aniket Masule <amasule@...eaurora.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 13 +++++++++++++
>  drivers/media/platform/qcom/venus/core.h | 15 +++++++++++++++
>  2 files changed, 28 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 7393667..43eb446 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -473,9 +473,22 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
>  	{  244800, 100000000 },	/* 1920x1080@30 */
>  };
>  
> +static struct codec_data sdm845_codec_data[] =  {
> +	{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_ENC, 675 },
> +	{ V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_ENC, 675 },
> +	{ V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_ENC, 675 },
> +	{ V4L2_PIX_FMT_MPEG2, VIDC_SESSION_TYPE_DEC, 200 },
> +	{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_DEC, 200 },
> +	{ V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_DEC, 200 },
> +	{ V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_DEC, 200 },
> +	{ V4L2_PIX_FMT_VP9, VIDC_SESSION_TYPE_DEC, 200 },
> +};
> +
>  static const struct venus_resources sdm845_res = {
>  	.freq_tbl = sdm845_freq_table,
>  	.freq_tbl_size = ARRAY_SIZE(sdm845_freq_table),
> +	.codec_data = sdm845_codec_data,
> +	.codec_data_size = ARRAY_SIZE(sdm845_codec_data),
>  	.clks = {"core", "iface", "bus" },
>  	.clks_num = 3,
>  	.max_load = 2563200,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 7a3feb5..b1a9b43 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -35,12 +35,20 @@ struct reg_val {
>  	u32 value;
>  };
>  
> +struct codec_data {

The name is very generic, could you rename the structure to something
like vpp_cycles_data?

> +u32 pixfmt;
> +u32 session_type;
> +int vpp_cycles;

please check your editor, those fields should have a tab to the right.

> +};
> +
>  struct venus_resources {
>  	u64 dma_mask;
>  	const struct freq_tbl *freq_tbl;
>  	unsigned int freq_tbl_size;
>  	const struct reg_val *reg_tbl;
>  	unsigned int reg_tbl_size;
> +	const struct codec_data *codec_data;
> +	unsigned int codec_data_size;
>  	const char * const clks[VIDC_CLKS_NUM_MAX];
>  	unsigned int clks_num;
>  	enum hfi_version hfi_version;
> @@ -216,6 +224,12 @@ struct venus_buffer {
>  	struct list_head ref_list;
>  };
>  
> +struct clock_data {
> +	u32 core_id;
> +	unsigned long freq;

I cannot see how this 'freq' structure field is used? I can see that you
fill it in 3/5 patch but you don't used nowhere.

> +	struct codec_data *codec_data;
> +};

Having the fact that freq field seems not needed can we just merge the
fields in venus_inst structure?

> +
>  #define to_venus_buffer(ptr)	container_of(ptr, struct venus_buffer, vb)
>  
>  /**
> @@ -275,6 +289,7 @@ struct venus_inst {
>  	struct list_head list;
>  	struct mutex lock;
>  	struct venus_core *core;
> +	struct clock_data clk_data;
>  	struct list_head dpbbufs;
>  	struct list_head internalbufs;
>  	struct list_head registeredbufs;
> 

-- 
regards,
Stan