Re: [Freedreno] [PATCH 2/3] drm/msm/dpu: access QSEED registers directly

[Jeykumar Sankaran <quic_jeykumar@xxxxxxxxxxx>]

On 4/21/2023 5:08 PM, Dmitry Baryshkov wrote:
> Stop using _sspp_subblk_offset() to get offset of the scaler_blk. Inline
> this function and use ctx->cap->sblk->scaler_blk.base directly.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c | 27 +++++++--------------
>   1 file changed, 9 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
> index fce135f010d4..22c59f2250be 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
> @@ -149,11 +149,6 @@ static int _sspp_subblk_offset(struct dpu_hw_sspp *ctx,
>   	sblk = ctx->cap->sblk;
>   
>   	switch (s_id) {
> -	case DPU_SSPP_SCALER_QSEED2:
> -	case DPU_SSPP_SCALER_QSEED3:
> -	case DPU_SSPP_SCALER_RGB:
> -		*idx = sblk->scaler_blk.base;
> -		break;
>   	case DPU_SSPP_CSC:
>   	case DPU_SSPP_CSC_10BIT:
>   		*idx = sblk->csc_blk.base;
> @@ -195,22 +190,21 @@ static void dpu_hw_sspp_setup_multirect(struct dpu_sw_pipe *pipe)
>   static void _sspp_setup_opmode(struct dpu_hw_sspp *ctx,
>   		u32 mask, u8 en)
>   {
> -	u32 idx;
> +	const struct dpu_sspp_sub_blks *sblk = ctx->cap->sblk;
>   	u32 opmode;
>   
>   	if (!test_bit(DPU_SSPP_SCALER_QSEED2, &ctx->cap->features) ||
> -		_sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED2, &idx) ||
>   		!test_bit(DPU_SSPP_CSC, &ctx->cap->features))
>   		return;
>   
> -	opmode = DPU_REG_READ(&ctx->hw, SSPP_VIG_OP_MODE + idx);
> +	opmode = DPU_REG_READ(&ctx->hw, sblk->scaler_blk.base + SSPP_VIG_OP_MODE);
>   
>   	if (en)
>   		opmode |= mask;
>   	else
>   		opmode &= ~mask;
>   
> -	DPU_REG_WRITE(&ctx->hw, SSPP_VIG_OP_MODE + idx, opmode);
> +	DPU_REG_WRITE(&ctx->hw, sblk->scaler_blk.base + SSPP_VIG_OP_MODE, opmode);
>   }
>   
>   static void _sspp_setup_csc10_opmode(struct dpu_hw_sspp *ctx,
> @@ -416,25 +410,22 @@ static void _dpu_hw_sspp_setup_scaler3(struct dpu_hw_sspp *ctx,
>   		struct dpu_hw_scaler3_cfg *scaler3_cfg,
>   		const struct dpu_format *format)
>   {
> -	u32 idx;
> -
> -	if (_sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED3, &idx)
> -		|| !scaler3_cfg)
> +	if (!ctx || !scaler3_cfg)
>   		return;
>   
> -	dpu_hw_setup_scaler3(&ctx->hw, scaler3_cfg, idx,
> +	dpu_hw_setup_scaler3(&ctx->hw, scaler3_cfg,
> +			ctx->cap->sblk->scaler_blk.base,
>   			ctx->cap->sblk->scaler_blk.version,
>   			format);
>   }
>   
>   static u32 _dpu_hw_sspp_get_scaler3_ver(struct dpu_hw_sspp *ctx)
>   {
> -	u32 idx;
> -
> -	if (!ctx || _sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED3, &idx))
> +	if (!ctx)
>   		return 0;
>   
> -	return dpu_hw_get_scaler3_ver(&ctx->hw, idx);
> +	return dpu_hw_get_scaler3_ver(&ctx->hw,
> +				      ctx->cap->sblk->scaler_blk.base);
>   }
>   
>   /*
Reviewed-by: Jeykumar Sankaran <quic_jeykumar@xxxxxxxxxxx>