On Tue, Sep 24, 2024 at 03:59:22PM GMT, Jessica Zhang wrote:
> From: Dmitry Baryshkov <[email protected]>
> 
> Stop poking into CRTC state from dpu_encoder.c, fill CRTC HW resources
> from dpu_crtc_assign_resources().
> 
> Signed-off-by: Dmitry Baryshkov <[email protected]>
> [[email protected]: cleaned up formatting]
> Signed-off-by: Abhinav Kumar <[email protected]>
> [[email protected]: dropped clearing num_mixers in CRTC disable
> path]

Same comment as before: the code is still there.

> Signed-off-by: Jessica Zhang <[email protected]>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    | 32 
> ++++++++++++++++++++++++++---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 24 ++--------------------
>  2 files changed, 31 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c 
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index b918c80d30b3..d53e986eee54 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -1091,9 +1091,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc,
>  
>       dpu_core_perf_crtc_update(crtc, 0);
>  
> -     memset(cstate->mixers, 0, sizeof(cstate->mixers));
> -     cstate->num_mixers = 0;
> -
>       /* disable clk & bw control until clk & bw properties are set */
>       cstate->bw_control = false;
>       cstate->bw_split_vote = false;
> @@ -1164,6 +1161,7 @@ static bool dpu_crtc_needs_dirtyfb(struct 
> drm_crtc_state *cstate)
>  }
>  
>  #define MAX_HDISPLAY_SPLIT 1080
> +#define MAX_CHANNELS_PER_CRTC 2
>  
>  static struct msm_display_topology dpu_crtc_get_topology(
>               struct drm_crtc *crtc,
> @@ -1208,9 +1206,14 @@ static struct msm_display_topology 
> dpu_crtc_get_topology(
>  
>  static int dpu_crtc_assign_resources(struct drm_crtc *crtc, struct 
> drm_crtc_state *crtc_state)
>  {
> +     struct dpu_hw_blk *hw_ctl[MAX_CHANNELS_PER_CRTC];
> +     struct dpu_hw_blk *hw_lm[MAX_CHANNELS_PER_CRTC];
> +     struct dpu_hw_blk *hw_dspp[MAX_CHANNELS_PER_CRTC];
> +     int i, num_lm, num_ctl, num_dspp;
>       struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
>       struct dpu_global_state *global_state;
>       struct msm_display_topology topology;
> +     struct dpu_crtc_state *cstate;
>       int ret;
>  
>       /*
> @@ -1232,6 +1235,29 @@ static int dpu_crtc_assign_resources(struct drm_crtc 
> *crtc, struct drm_crtc_stat
>       if (ret)
>               return ret;
>  
> +     cstate = to_dpu_crtc_state(crtc_state);
> +
> +     num_ctl = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> +                                             crtc, DPU_HW_BLK_CTL, hw_ctl,
> +                                             ARRAY_SIZE(hw_ctl));
> +     num_lm = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> +                                            crtc, DPU_HW_BLK_LM, hw_lm,
> +                                            ARRAY_SIZE(hw_lm));
> +     num_dspp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> +                                              crtc, DPU_HW_BLK_DSPP, hw_dspp,
> +                                              ARRAY_SIZE(hw_dspp));
> +
> +     for (i = 0; i < num_lm; i++) {
> +             int ctl_idx = (i < num_ctl) ? i : (num_ctl-1);
> +
> +             cstate->mixers[i].hw_lm = to_dpu_hw_mixer(hw_lm[i]);
> +             cstate->mixers[i].lm_ctl = to_dpu_hw_ctl(hw_ctl[ctl_idx]);
> +             if (i < num_dspp)
> +                     cstate->mixers[i].hw_dspp = to_dpu_hw_dspp(hw_dspp[i]);
> +     }
> +
> +     cstate->num_mixers = num_lm;
> +
>       return 0;
>  }
>  
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c 
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index ada9119326ca..36b677cf9c7a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -1049,14 +1049,11 @@ static void dpu_encoder_virt_atomic_mode_set(struct 
> drm_encoder *drm_enc,
>       struct dpu_encoder_virt *dpu_enc;
>       struct msm_drm_private *priv;
>       struct dpu_kms *dpu_kms;
> -     struct dpu_crtc_state *cstate;
>       struct dpu_global_state *global_state;
>       struct dpu_hw_blk *hw_pp[MAX_CHANNELS_PER_ENC];
>       struct dpu_hw_blk *hw_ctl[MAX_CHANNELS_PER_ENC];
> -     struct dpu_hw_blk *hw_lm[MAX_CHANNELS_PER_ENC];
> -     struct dpu_hw_blk *hw_dspp[MAX_CHANNELS_PER_ENC] = { NULL };
>       struct dpu_hw_blk *hw_dsc[MAX_CHANNELS_PER_ENC];
> -     int num_lm, num_ctl, num_pp, num_dsc;
> +     int num_pp, num_dsc;
>       unsigned int dsc_mask = 0;
>       int i;
>  
> @@ -1083,13 +1080,8 @@ static void dpu_encoder_virt_atomic_mode_set(struct 
> drm_encoder *drm_enc,
>       num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
>               drm_enc->crtc, DPU_HW_BLK_PINGPONG, hw_pp,
>               ARRAY_SIZE(hw_pp));
> -     num_ctl = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> -             drm_enc->crtc, DPU_HW_BLK_CTL, hw_ctl, ARRAY_SIZE(hw_ctl));
> -     num_lm = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> -             drm_enc->crtc, DPU_HW_BLK_LM, hw_lm, ARRAY_SIZE(hw_lm));
>       dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state,
> -             drm_enc->crtc, DPU_HW_BLK_DSPP, hw_dspp,
> -             ARRAY_SIZE(hw_dspp));
> +                     drm_enc->crtc, DPU_HW_BLK_CTL, hw_ctl, 
> ARRAY_SIZE(hw_ctl));

Please don't mix reindentation with the actual changes. It makes it
harder to read.

>  
>       for (i = 0; i < MAX_CHANNELS_PER_ENC; i++)
>               dpu_enc->hw_pp[i] = i < num_pp ? to_dpu_hw_pingpong(hw_pp[i])
> @@ -1115,18 +1107,6 @@ static void dpu_encoder_virt_atomic_mode_set(struct 
> drm_encoder *drm_enc,
>               dpu_enc->cur_master->hw_cdm = hw_cdm ? to_dpu_hw_cdm(hw_cdm) : 
> NULL;
>       }
>  
> -     cstate = to_dpu_crtc_state(crtc_state);
> -
> -     for (i = 0; i < num_lm; i++) {
> -             int ctl_idx = (i < num_ctl) ? i : (num_ctl-1);
> -
> -             cstate->mixers[i].hw_lm = to_dpu_hw_mixer(hw_lm[i]);
> -             cstate->mixers[i].lm_ctl = to_dpu_hw_ctl(hw_ctl[ctl_idx]);
> -             cstate->mixers[i].hw_dspp = to_dpu_hw_dspp(hw_dspp[i]);
> -     }
> -
> -     cstate->num_mixers = num_lm;
> -
>       for (i = 0; i < dpu_enc->num_phys_encs; i++) {
>               struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
>  
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry

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