linux-kernel - [PATCH v6 3/5] media: mediatek: vcodec: Get SRC buffer from bitstream instead of M2M

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Message-ID: <20241108033219.19804-4-yunfei.dong@mediatek.com>
Date: Fri, 8 Nov 2024 11:32:12 +0800
From: Yunfei Dong <yunfei.dong@...iatek.com>
To: Nícolas F . R . A . Prado
	<nfraprado@...labora.com>, Sebastian Fricke <sebastian.fricke@...labora.com>,
	Nicolas Dufresne <nicolas.dufresne@...labora.com>, Hans Verkuil
	<hverkuil-cisco@...all.nl>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Benjamin Gaignard
	<benjamin.gaignard@...labora.com>, Nathan Hebert <nhebert@...omium.org>
CC: Hsin-Yi Wang <hsinyi@...omium.org>, Chen-Yu Tsai <wenst@...omium.org>,
	Fritz Koenig <frkoenig@...omium.org>, Daniel Vetter <daniel@...ll.ch>, Steve
 Cho <stevecho@...omium.org>, Yunfei Dong <yunfei.dong@...iatek.com>,
	<linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v6 3/5] media: mediatek: vcodec: Get SRC buffer from bitstream instead of M2M

Getting the SRC buffer from M2M will pick a different than the one
used for current decode operation when the SRC buffer is removed
from ready list.

Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
 .../vcodec/decoder/vdec/vdec_av1_req_lat_if.c | 25 +++++++------------
 .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 24 ++++++------------
 2 files changed, 17 insertions(+), 32 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
index 90217cc8e242..0e1469effeb5 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
@@ -1060,24 +1060,20 @@ static inline void vdec_av1_slice_vsi_to_remote(struct vdec_av1_slice_vsi *vsi,
 	memcpy(remote_vsi, vsi, sizeof(*vsi));
 }
 
-static int vdec_av1_slice_setup_lat_from_src_buf(struct vdec_av1_slice_instance *instance,
-						 struct vdec_av1_slice_vsi *vsi,
-						 struct vdec_lat_buf *lat_buf)
+static void vdec_av1_slice_setup_lat_from_src_buf(struct vdec_av1_slice_instance *instance,
+						  struct vdec_av1_slice_vsi *vsi,
+						  struct mtk_vcodec_mem *bs,
+						  struct vdec_lat_buf *lat_buf)
 {
-	struct vb2_v4l2_buffer *src;
+	struct mtk_video_dec_buf *src_buf_info;
 	struct vb2_v4l2_buffer *dst;
 
-	src = v4l2_m2m_next_src_buf(instance->ctx->m2m_ctx);
-	if (!src)
-		return -EINVAL;
-
-	lat_buf->vb2_v4l2_src = src;
+	src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
+	lat_buf->vb2_v4l2_src = &src_buf_info->m2m_buf.vb;
 
 	dst = &lat_buf->ts_info;
-	v4l2_m2m_buf_copy_metadata(src, dst, true);
+	v4l2_m2m_buf_copy_metadata(lat_buf->vb2_v4l2_src, dst, true);
 	vsi->frame.cur_ts = dst->vb2_buf.timestamp;
-
-	return 0;
 }
 
 static short vdec_av1_slice_resolve_divisor_32(u32 D, short *shift)
@@ -1724,10 +1720,7 @@ static int vdec_av1_slice_setup_lat(struct vdec_av1_slice_instance *instance,
 	struct vdec_av1_slice_vsi *vsi = &pfc->vsi;
 	int ret;
 
-	ret = vdec_av1_slice_setup_lat_from_src_buf(instance, vsi, lat_buf);
-	if (ret)
-		return ret;
-
+	vdec_av1_slice_setup_lat_from_src_buf(instance, vsi, bs, lat_buf);
 	ret = vdec_av1_slice_setup_pfc(instance, pfc);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
index 3dceb668ba1c..a56f6bb879a6 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
@@ -711,21 +711,16 @@ int vdec_vp9_slice_setup_single_from_src_to_dst(struct vdec_vp9_slice_instance *
 	return 0;
 }
 
-static int vdec_vp9_slice_setup_lat_from_src_buf(struct vdec_vp9_slice_instance *instance,
-						 struct vdec_lat_buf *lat_buf)
+static void vdec_vp9_slice_setup_lat_from_src_buf(struct vdec_vp9_slice_instance *instance,
+						  struct mtk_vcodec_mem *bs,
+						  struct vdec_lat_buf *lat_buf)
 {
-	struct vb2_v4l2_buffer *src;
-	struct vb2_v4l2_buffer *dst;
-
-	src = v4l2_m2m_next_src_buf(instance->ctx->m2m_ctx);
-	if (!src)
-		return -EINVAL;
+	struct mtk_video_dec_buf *src_buf_info;
 
-	lat_buf->vb2_v4l2_src = src;
+	src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
+	lat_buf->vb2_v4l2_src = &src_buf_info->m2m_buf.vb;
 
-	dst = &lat_buf->ts_info;
-	v4l2_m2m_buf_copy_metadata(src, dst, true);
-	return 0;
+	v4l2_m2m_buf_copy_metadata(lat_buf->vb2_v4l2_src, &lat_buf->ts_info, true);
 }
 
 static void vdec_vp9_slice_setup_hdr(struct vdec_vp9_slice_instance *instance,
@@ -1154,10 +1149,7 @@ static int vdec_vp9_slice_setup_lat(struct vdec_vp9_slice_instance *instance,
 	struct vdec_vp9_slice_vsi *vsi = &pfc->vsi;
 	int ret;
 
-	ret = vdec_vp9_slice_setup_lat_from_src_buf(instance, lat_buf);
-	if (ret)
-		goto err;
-
+	vdec_vp9_slice_setup_lat_from_src_buf(instance, bs, lat_buf);
 	ret = vdec_vp9_slice_setup_pfc(instance, pfc);
 	if (ret)
 		goto err;
-- 
2.46.0