linux-kernel - [PATCH v3 6/6] media: qcom: iris: Simplify COMV size calculation

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Message-Id: <20260109-batch2_iris_encoder_enhancements-v3-6-196855ef32ba@oss.qualcomm.com>
Date: Fri, 09 Jan 2026 15:42:35 +0800
From: Wangao Wang <wangao.wang@....qualcomm.com>
To: Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bod@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: quic_qiweil@...cinc.com, Renjiang Han <renjiang.han@....qualcomm.com>,
        Wangao Wang <wangao.wang@....qualcomm.com>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 6/6] media: qcom: iris: Simplify COMV size calculation

Unify AVC/HEVC handling by computing codec and lcu_size upfront.

Signed-off-by: Wangao Wang <wangao.wang@....qualcomm.com>
---
 drivers/media/platform/qcom/iris/iris_vpu_buffer.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_vpu_buffer.c b/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
index c962042518fceb0f82a48956df01c8f3cd26df99..621d5c6b4940e146f117e6b206421127c7cf9656 100644
--- a/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
+++ b/drivers/media/platform/qcom/iris/iris_vpu_buffer.c
@@ -739,16 +739,13 @@ static u32 iris_vpu_enc_comv_size(struct iris_inst *inst)
 	u32 height = iris_vpu_enc_get_bitstream_height(inst);
 	u32 width = iris_vpu_enc_get_bitstream_width(inst);
 	u32 num_recon = hfi_buffer_get_recon_count(inst);
-	u32 lcu_size = 16;
+	u32 codec, lcu_size;
 
-	if (inst->codec == V4L2_PIX_FMT_HEVC) {
-		lcu_size = 32;
-		return hfi_buffer_comv_enc(width, height, lcu_size,
-					   num_recon + 1, HFI_CODEC_ENCODE_HEVC);
-	}
+	codec = (inst->codec == V4L2_PIX_FMT_HEVC) ?
+		HFI_CODEC_ENCODE_HEVC : HFI_CODEC_ENCODE_AVC;
+	lcu_size = (inst->codec == V4L2_PIX_FMT_HEVC) ? 32 : 16;
 
-	return hfi_buffer_comv_enc(width, height, lcu_size,
-				   num_recon + 1, HFI_CODEC_ENCODE_AVC);
+	return hfi_buffer_comv_enc(width, height, lcu_size, num_recon + 1, codec);
 }
 
 static inline

-- 
2.43.0