linux-kernel - Re: [PATCH v4 1/6] media: qcom: iris: Improve format alignment for encoder

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Message-ID: <df169cde-39db-ec6c-7294-04939575498b@oss.qualcomm.com>
Date: Fri, 7 Nov 2025 14:12:06 +0530
From: Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
To: Wangao Wang <wangao.wang@....qualcomm.com>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bod@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>, quic_qiweil@...cinc.com,
        quic_renjiang@...cinc.com
Subject: Re: [PATCH v4 1/6] media: qcom: iris: Improve format alignment for
 encoder



On 11/6/2025 9:00 AM, Wangao Wang wrote:
> Add members enc_raw_width, enc_raw_height to the struct iris_inst to
> support codec alignment requirements.
> 
> HFI_PROP_RAW_RESOLUTION needs to be set to the actual YUV resolution.
> 
> Tested-by: Neil Armstrong <neil.armstrong@...aro.org> # on SM8650-HDK
> Signed-off-by: Wangao Wang <wangao.wang@....qualcomm.com>
> ---
>  drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c | 7 +++----
>  drivers/media/platform/qcom/iris/iris_instance.h         | 4 ++++
>  drivers/media/platform/qcom/iris/iris_venc.c             | 6 ++++++
>  3 files changed, 13 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
> index 4ce71a14250832440099e4cf3835b4aedfb749e8..aaa79dfe2db281bb77be7274233f093b0086b5d4 100644
> --- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
> +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
> @@ -168,8 +168,7 @@ static int iris_hfi_gen2_session_set_property(struct iris_inst *inst, u32 packet
>  
>  static int iris_hfi_gen2_set_raw_resolution(struct iris_inst *inst, u32 plane)
>  {
> -	u32 resolution = inst->fmt_src->fmt.pix_mp.width << 16 |
> -		inst->fmt_src->fmt.pix_mp.height;
> +	u32 resolution = inst->enc_raw_width << 16 | inst->enc_raw_height;
>  	u32 port = iris_hfi_gen2_get_port(inst, plane);
>  
>  	return iris_hfi_gen2_session_set_property(inst,
> @@ -231,8 +230,8 @@ static int iris_hfi_gen2_set_crop_offsets(struct iris_inst *inst, u32 plane)
>  			top_offset = inst->compose.top;
>  		}
>  	} else {
> -		bottom_offset = (inst->fmt_src->fmt.pix_mp.height - inst->crop.height);
> -		right_offset = (inst->fmt_src->fmt.pix_mp.width - inst->crop.width);
> +		bottom_offset = (inst->fmt_dst->fmt.pix_mp.height - inst->enc_raw_height);
> +		right_offset = (inst->fmt_dst->fmt.pix_mp.width - inst->enc_raw_width);

This should be move to 2nd patch where you clean the CROP offset property
setting.

Thanks,
Dikshita
>  		left_offset = inst->crop.left;
>  		top_offset = inst->crop.top;
>  	}
> diff --git a/drivers/media/platform/qcom/iris/iris_instance.h b/drivers/media/platform/qcom/iris/iris_instance.h
> index 5982d7adefeab80905478b32cddba7bd4651a691..a9892988c10bc28e9b2d8c3b5482e99b5b9af623 100644
> --- a/drivers/media/platform/qcom/iris/iris_instance.h
> +++ b/drivers/media/platform/qcom/iris/iris_instance.h
> @@ -64,6 +64,8 @@ struct iris_fmt {
>   * @frame_rate: frame rate of current instance
>   * @operating_rate: operating rate of current instance
>   * @hfi_rc_type: rate control type
> + * @enc_raw_width: source image width for encoder instance
> + * @enc_raw_height: source image height for encoder instance
>   */
>  
>  struct iris_inst {
> @@ -102,6 +104,8 @@ struct iris_inst {
>  	u32				frame_rate;
>  	u32				operating_rate;
>  	u32				hfi_rc_type;
> +	u32				enc_raw_width;
> +	u32				enc_raw_height;
>  };
>  
>  #endif
> diff --git a/drivers/media/platform/qcom/iris/iris_venc.c b/drivers/media/platform/qcom/iris/iris_venc.c
> index 099bd5ed4ae0294725860305254c4cad1ec88d7e..50a3eb975a2523abf1c2df128a66a762a1ed35c6 100644
> --- a/drivers/media/platform/qcom/iris/iris_venc.c
> +++ b/drivers/media/platform/qcom/iris/iris_venc.c
> @@ -68,6 +68,9 @@ int iris_venc_inst_init(struct iris_inst *inst)
>  	inst->operating_rate = DEFAULT_FPS;
>  	inst->frame_rate = DEFAULT_FPS;
>  
> +	inst->enc_raw_width = DEFAULT_WIDTH;
> +	inst->enc_raw_height = DEFAULT_HEIGHT;
> +
>  	memcpy(&inst->fw_caps[0], &core->inst_fw_caps_enc[0],
>  	       INST_FW_CAP_MAX * sizeof(struct platform_inst_fw_cap));
>  
> @@ -249,6 +252,9 @@ static int iris_venc_s_fmt_input(struct iris_inst *inst, struct v4l2_format *f)
>  	inst->buffers[BUF_INPUT].min_count = iris_vpu_buf_count(inst, BUF_INPUT);
>  	inst->buffers[BUF_INPUT].size = fmt->fmt.pix_mp.plane_fmt[0].sizeimage;
>  
> +	inst->enc_raw_width = f->fmt.pix_mp.width;
> +	inst->enc_raw_height = f->fmt.pix_mp.height;
> +
>  	if (f->fmt.pix_mp.width != inst->crop.width ||
>  	    f->fmt.pix_mp.height != inst->crop.height) {
>  		inst->crop.top = 0;
>