linux-kernel - Re: [PATCH 3/3] venus: core: add sc7180 DT compatible and resource struct

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Date:   Fri, 20 Dec 2019 11:33:39 +0200
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Dikshita Agarwal <dikshita@...eaurora.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, vgarodia@...eaurora.org
Subject: Re: [PATCH 3/3] venus: core: add sc7180 DT compatible and resource
 struct

Hi Dikshita,

Thanks for the patch!

On 12/20/19 9:59 AM, Dikshita Agarwal wrote:
> This add DT compatible string and resource structure for sc7180.
> 
> Signed-off-by: Dikshita Agarwal <dikshita@...eaurora.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 58 +++++++++++++++++++++++++++++++-
>  1 file changed, 57 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index c7525d9..e8c8b28 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -469,7 +469,7 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
>  	{ 2073600, 3929000, 0, 5551000, 0 },	/* 4096x2160@60 */
>  	{ 1036800, 1987000, 0, 2797000, 0 },	/* 4096x2160@30 */
>  	{  489600, 1040000, 0, 1298000, 0 },	/* 1920x1080@60 */
> -	{  244800,  530000, 0,  659000, 0 },	/* 1920x1080@30 */
> +	{  244800,  442000, 0,  659000, 0 },	/* 1920x1080@30 */

unrelated change, please drop it

>  };
>  
>  static const struct venus_resources sdm845_res = {
> @@ -521,11 +521,67 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
>  	.fwname = "qcom/venus-5.2/venus.mdt",
>  };
>  
> +static const struct freq_tbl sc7180_freq_table[] = {
> +	{  0, 380000000 },
> +	{  0, 340000000 },
> +	{  0, 270000000 },
> +	{  0, 150000000 },

why .load is zero?

> +};
> +
> +static struct codec_freq_data sc7180_codec_freq_data[] =  {
> +	{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_ENC, 675, 10 },
> +	{ V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_ENC, 675, 10 },
> +	{ V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_ENC, 675, 10 },
> +	{ V4L2_PIX_FMT_MPEG2, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +	{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +	{ V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +	{ V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +	{ V4L2_PIX_FMT_VP9, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +};

the table is exactly the same as sdm845 one, please reuse it.

> +
> +static const struct bw_tbl sc7180_bw_table_enc[] = {
> +	{  972000,  750000, 0, 0, 0 },	/* 3840x2160@30 */
> +	{  489600,  451000, 0, 0, 0 },	/* 1920x1080@60 */
> +	{  244800,  234000, 0, 0, 0 },	/* 1920x1080@30 */
> +};
> +
> +static const struct bw_tbl sc7180_bw_table_dec[] = {
> +	{ 1036800, 1386000, 0, 1875000, 0 },	/* 4096x2160@30 */
> +	{  489600,  865000, 0, 1146000, 0 },	/* 1920x1080@60 */
> +	{  244800,  530000, 0,  583000, 0 },	/* 1920x1080@30 */
> +};
> +
> +static const struct venus_resources sc7180_res = {
> +	.freq_tbl = sc7180_freq_table,
> +	.freq_tbl_size = ARRAY_SIZE(sc7180_freq_table),
> +	.bw_tbl_enc = sc7180_bw_table_enc,
> +	.bw_tbl_enc_size = ARRAY_SIZE(sc7180_bw_table_enc),
> +	.bw_tbl_dec = sc7180_bw_table_dec,
> +	.bw_tbl_dec_size = ARRAY_SIZE(sc7180_bw_table_dec),
> +	.codec_freq_data = sc7180_codec_freq_data,
> +	.codec_freq_data_size = ARRAY_SIZE(sc7180_codec_freq_data),
> +	.clks = {"core", "iface", "bus" },
> +	.clks_num = 3,
> +	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> +	.vcodec_clks_num = 2,
> +	.vcodec_pmdomains = { "venus", "vcodec0" },
> +	.vcodec_pmdomains_num = 2,
> +	.vcodec_num = 1,
> +	.max_load = 3110400,	/* 4096x2160@90 */

Looking into above bandwidth tables I can guess that the maximimum load
is reached at 4096x2160@30? If so you have to change it here.

<cut>

-- 
regards,
Stan