linux-kernel - Re: [PATCH 11/35] drm/msm/dpu: get rid of DPU_CTL_ACTIVE

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Message-ID: <9d86517e-b05c-4cd6-925e-11c859fcb91d@quicinc.com>
Date: Tue, 21 Jan 2025 16:58:03 -0800
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Clark
	<robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona
 Vetter <simona@...ll.ch>,
        Vinod Koul <vkoul@...nel.org>, Konrad Dybcio
	<konradybcio@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 11/35] drm/msm/dpu: get rid of DPU_CTL_ACTIVE_CFG



On 12/13/2024 2:14 PM, Dmitry Baryshkov wrote:
> Continue migration to the MDSS-revision based checks and replace
> DPU_CTL_ACTIVE_CFG feature bit with the core_major_ver >= 5 check.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_0_sm8150.h  | 8 ++------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 8 ++------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_2_sm7150.h  | 8 ++------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_4_sm6125.h  | 6 ------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_0_sm8250.h  | 8 ++------
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_2_sc7180.h  | 3 ---
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_3_sm6115.h  | 1 -
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_4_sm6350.h  | 4 ----
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_5_qcm2290.h | 1 -
>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_6_9_sm6375.h  | 1 -
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c    | 2 +-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c     | 7 ++-----
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c          | 3 +--
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h          | 1 -
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c              | 2 +-
>   15 files changed, 13 insertions(+), 50 deletions(-)
> 

<snip>

> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> index e9bbccc44dad8b391cd51daf902307105b2598fc..e16b0a0c57da4a1aa77064ca2214e37cd9ee4baa 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
> @@ -66,7 +66,7 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg(
>   	ctl->ops.setup_intf_cfg(ctl, &intf_cfg);
>   
>   	/* setup which pp blk will connect to this intf */
> -	if (test_bit(DPU_CTL_ACTIVE_CFG, &ctl->caps->features) && phys_enc->hw_intf->ops.bind_pingpong_blk)
> +	if (phys_enc->hw_intf->ops.bind_pingpong_blk)
>   		phys_enc->hw_intf->ops.bind_pingpong_blk(
>   				phys_enc->hw_intf,
>   				phys_enc->hw_pp->idx);

Was it intentional to drop the DPU_CTL_ACTIVE_CFG here but not replace 
it with core_major_rev >= 5?

<snip>

> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> index 5f9cd09589bb403746d48af6f8555cd224bf3195..59d25916d2d412113768d71a76a6aed4c879299a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> @@ -716,7 +716,7 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(struct drm_device *dev,
>   	c->caps = cfg;
>   	c->mdss_ver = mdss_ver;
>   
> -	if (c->caps->features & BIT(DPU_CTL_ACTIVE_CFG)) {
> +	if (mdss_ver->core_major_ver >= 5) {
>   		c->ops.trigger_flush = dpu_hw_ctl_trigger_flush_v1;
>   		c->ops.setup_intf_cfg = dpu_hw_ctl_intf_cfg_v1;
>   		c->ops.reset_intf_cfg = dpu_hw_ctl_reset_intf_cfg_v1;
> 

DPU ver 5 introduced active_cfg, so this part is correct. Hence overall 
change is fine.