linux-kernel - Re: [PATCH v2 4/7] drm/msm/dpu: add dsc blocks for remaining chipsets in catalog

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Date:   Sat, 29 Apr 2023 03:35:43 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...il.com,
        agross@...nel.org, andersson@...nel.org
Cc:     Abhinav Kumar <quic_abhinavk@...cinc.com>,
        quic_sbillaka@...cinc.com, marijn.suijten@...ainline.org,
        freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/7] drm/msm/dpu: add dsc blocks for remaining chipsets
 in catalog

On 29/04/2023 02:45, Kuogee Hsieh wrote:
> From: Abhinav Kumar <quic_abhinavk@...cinc.com>
> 
> In preparation of calling ping-pong DSC related functions only
> for chipsets which have such a design add the dsc blocks for the
> chipsets for which DSC is present but was not added in the catalog.

Why/how is it prearing us for such calling?

The change itself LGTM.

> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h |  7 +++++++
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 11 +++++++++++
>   2 files changed, 18 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
> index 2b3ae84..17f821c 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
> @@ -126,6 +126,11 @@ static const struct dpu_pingpong_cfg msm8998_pp[] = {
>   			DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 15)),
>   };
>   
> +static const struct dpu_dsc_cfg msm8998_dsc[] = {
> +	DSC_BLK("dsc_0", DSC_0, 0x80000, 0),
> +	DSC_BLK("dsc_1", DSC_1, 0x80400, 0),
> +};
> +
>   static const struct dpu_dspp_cfg msm8998_dspp[] = {
>   	DSPP_BLK("dspp_0", DSPP_0, 0x54000, DSPP_MSM8998_MASK,
>   		 &msm8998_dspp_sblk),
> @@ -191,6 +196,8 @@ const struct dpu_mdss_cfg dpu_msm8998_cfg = {
>   	.dspp = msm8998_dspp,
>   	.pingpong_count = ARRAY_SIZE(msm8998_pp),
>   	.pingpong = msm8998_pp,
> +	.dsc_count = ARRAY_SIZE(msm8998_dsc),
> +	.dsc = msm8998_dsc,
>   	.intf_count = ARRAY_SIZE(msm8998_intf),
>   	.intf = msm8998_intf,
>   	.vbif_count = ARRAY_SIZE(msm8998_vbif),
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> index e3bdfe7..5bb9882 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> @@ -142,6 +142,15 @@ static const struct dpu_merge_3d_cfg sc8180x_merge_3d[] = {
>   	MERGE_3D_BLK("merge_3d_2", MERGE_3D_2, 0x83200),
>   };
>   
> +static const struct dpu_dsc_cfg sc8180x_dsc[] = {
> +	DSC_BLK("dsc_0", DSC_0, 0x80000, BIT(DPU_DSC_OUTPUT_CTRL)),
> +	DSC_BLK("dsc_1", DSC_1, 0x80400, BIT(DPU_DSC_OUTPUT_CTRL)),
> +	DSC_BLK("dsc_2", DSC_2, 0x80800, BIT(DPU_DSC_OUTPUT_CTRL)),
> +	DSC_BLK("dsc_3", DSC_3, 0x80c00, BIT(DPU_DSC_OUTPUT_CTRL)),
> +	DSC_BLK("dsc_4", DSC_4, 0x81000, BIT(DPU_DSC_OUTPUT_CTRL)),
> +	DSC_BLK("dsc_5", DSC_5, 0x81400, BIT(DPU_DSC_OUTPUT_CTRL)),
> +};
> +
>   static const struct dpu_intf_cfg sc8180x_intf[] = {
>   	INTF_BLK("intf_0", INTF_0, 0x6a000, 0x280, INTF_DP, MSM_DP_CONTROLLER_0, 24, INTF_SC7180_MASK, MDP_SSPP_TOP0_INTR, 24, 25),
>   	INTF_BLK("intf_1", INTF_1, 0x6a800, 0x2bc, INTF_DSI, 0, 24, INTF_SC7180_MASK, MDP_SSPP_TOP0_INTR, 26, 27),
> @@ -192,6 +201,8 @@ const struct dpu_mdss_cfg dpu_sc8180x_cfg = {
>   	.mixer = sc8180x_lm,
>   	.pingpong_count = ARRAY_SIZE(sc8180x_pp),
>   	.pingpong = sc8180x_pp,
> +	.dsc_count = ARRAY_SIZE(sc8180x_dsc),
> +	.dsc = sc8180x_dsc,
>   	.merge_3d_count = ARRAY_SIZE(sc8180x_merge_3d),
>   	.merge_3d = sc8180x_merge_3d,
>   	.intf_count = ARRAY_SIZE(sc8180x_intf),

-- 
With best wishes
Dmitry