[PATCH v4 0/6] Add support for MT8196 video encoder

[PATCH v4 0/6] Add support for MT8196 video encoder

[Irui Wang]

This patch series add support for MT8196 video encoder.
patch 1~3: Add a new encoder driver interface for new VCP firmware.
patch 4~6: Add MT8196 encoder driver platform data.

About adding new driver support, the v4l2-compliance report shows:
"Total for mtk-vcodec-enc device /dev/video3: 47, Succeeded: 46, Failed: 1, Warnings: 0"
The 1 Failed case is not caused by current patch set:
                fail: v4l2-test-controls.cpp(1171): node->codec_mask & STATEFUL_ENCODER
        test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: FAIL

This patch set depends on "media: mediatek: vcodec: support video decoder in mt8196"[1]

[1] https://patchwork.linuxtv.org/project/linux-media/list/?series=21718

Change in v4:
 - Rework patch3 commit message.
 - Rework patch5 commit with more details.
 - Rebase patch onto decoder's patch set.
 - Link to v3: https://patchwork.linuxtv.org/project/linux-media/cover/20250814085642.17343-1-kyrie.wu@mediatek.com/

Change in v3:
 - Add venc rc buffer alloc failure error handling.
 - Add mediatek,vcp property definition in dt-bindning.

Change in v2:
 - Add support for VCP encode process.
 - Add MT8196 encoder driver platform data.
 - Rebase encoder patch onto decoder's patch set.
 - Fix some review comments in v1.

Irui Wang (6):
  media: mediatek: encoder: Add a new encoder driver interface
  media: mediatek: encoder: Add support for common firmware interface
  media: mediatek: encoder: Add support for VCP encode process
  media: mediatek: encoder: Add a new platform data member
  dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP
    support
  media: mediatek: encoder: Add MT8196 encoder compatible data

 .../media/mediatek,vcodec-encoder.yaml        |  19 +
 .../mediatek/vcodec/common/mtk_vcodec_fw.c    |  19 +
 .../mediatek/vcodec/common/mtk_vcodec_fw.h    |   2 +
 .../vcodec/common/mtk_vcodec_fw_priv.h        |   1 +
 .../vcodec/common/mtk_vcodec_fw_vcp.c         |   6 +
 .../platform/mediatek/vcodec/encoder/Makefile |   1 +
 .../mediatek/vcodec/encoder/mtk_vcodec_enc.c  |  36 +-
 .../vcodec/encoder/mtk_vcodec_enc_drv.c       |  28 +
 .../vcodec/encoder/mtk_vcodec_enc_drv.h       |  15 +-
 .../vcodec/encoder/venc/venc_common_if.c      | 683 ++++++++++++++++++
 .../vcodec/encoder/venc/venc_h264_if.c        |   8 +-
 .../mediatek/vcodec/encoder/venc_drv_if.c     |   3 +-
 .../mediatek/vcodec/encoder/venc_drv_if.h     |  11 +-
 .../mediatek/vcodec/encoder/venc_ipi_msg.h    |  26 +
 .../mediatek/vcodec/encoder/venc_vpu_if.c     |  47 +-
 15 files changed, 853 insertions(+), 52 deletions(-)
 create mode 100644 drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c

-- 
2.45.2

[PATCH v4 1/6] media: mediatek: encoder: Add a new encoder driver interface

[Irui Wang]

Introduce a new encoder kernel driver interface to ensure compatibility
with the updated encoder software driver running in firmware.
The new driver interface is expected to support more encoder formats,
share more encode parameters between kernel and firmware.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 .../mediatek/vcodec/common/mtk_vcodec_fw.c    |  13 +
 .../mediatek/vcodec/common/mtk_vcodec_fw.h    |   1 +
 .../platform/mediatek/vcodec/encoder/Makefile |   1 +
 .../mediatek/vcodec/encoder/mtk_vcodec_enc.c  |  14 +-
 .../vcodec/encoder/mtk_vcodec_enc_drv.h       |   8 +-
 .../vcodec/encoder/venc/venc_common_if.c      | 672 ++++++++++++++++++
 .../vcodec/encoder/venc/venc_h264_if.c        |   8 +-
 .../mediatek/vcodec/encoder/venc_drv_if.h     |  11 +-
 8 files changed, 710 insertions(+), 18 deletions(-)
 create mode 100644 drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c

diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
index 4ed7639dfa30..0381acceda25 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
@@ -18,6 +18,19 @@ int mtk_vcodec_fw_get_ipi(enum mtk_vcodec_fw_type type, int hw_id)
 }
 EXPORT_SYMBOL_GPL(mtk_vcodec_fw_get_ipi);
 
+int mtk_vcodec_fw_get_venc_ipi(enum mtk_vcodec_fw_type type)
+{
+	switch (type) {
+	case SCP:
+		return SCP_IPI_VENC_H264;
+	case VCP:
+		return VCP_IPI_ENCODER;
+	default:
+		return -EINVAL;
+	}
+}
+EXPORT_SYMBOL_GPL(mtk_vcodec_fw_get_venc_ipi);
+
 struct mtk_vcodec_fw *mtk_vcodec_fw_select(void *priv, enum mtk_vcodec_fw_type type,
 					   enum mtk_vcodec_fw_use fw_use)
 {
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
index 142e2e87905c..e7304a7dd3e0 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
@@ -42,5 +42,6 @@ int mtk_vcodec_fw_ipi_send(struct mtk_vcodec_fw *fw, int id,
 			   void *buf, unsigned int len, unsigned int wait);
 int mtk_vcodec_fw_get_type(struct mtk_vcodec_fw *fw);
 int mtk_vcodec_fw_get_ipi(enum mtk_vcodec_fw_type type, int hw_id);
+int mtk_vcodec_fw_get_venc_ipi(enum mtk_vcodec_fw_type type);
 
 #endif /* _MTK_VCODEC_FW_H_ */
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/Makefile b/drivers/media/platform/mediatek/vcodec/encoder/Makefile
index e621b5b7e5e6..9d3229d56e39 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/Makefile
+++ b/drivers/media/platform/mediatek/vcodec/encoder/Makefile
@@ -4,6 +4,7 @@ obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o
 
 mtk-vcodec-enc-y := venc/venc_vp8_if.o \
 		venc/venc_h264_if.o \
+		venc/venc_common_if.o \
 		mtk_vcodec_enc.o \
 		mtk_vcodec_enc_drv.o \
 		mtk_vcodec_enc_pm.o \
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index 48cb5dded70a..f0344888f2cf 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -81,11 +81,11 @@ static int vidioc_venc_s_ctrl(struct v4l2_ctrl *ctrl)
 		break;
 	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
 		mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_PROFILE val = %d", ctrl->val);
-		p->h264_profile = ctrl->val;
+		p->profile = ctrl->val;
 		break;
 	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
 		mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_LEVEL val = %d", ctrl->val);
-		p->h264_level = ctrl->val;
+		p->level = ctrl->val;
 		break;
 	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
 		mtk_v4l2_venc_dbg(2, ctx, "V4L2_CID_MPEG_VIDEO_H264_I_PERIOD val = %d", ctrl->val);
@@ -385,8 +385,8 @@ static void mtk_venc_set_param(struct mtk_vcodec_enc_ctx *ctx,
 		mtk_v4l2_venc_err(ctx, "Unsupported fourcc =%d", q_data_src->fmt->fourcc);
 		break;
 	}
-	param->h264_profile = enc_params->h264_profile;
-	param->h264_level = enc_params->h264_level;
+	param->profile = enc_params->profile;
+	param->level = enc_params->level;
 
 	/* Config visible resolution */
 	param->width = q_data_src->visible_width;
@@ -402,8 +402,8 @@ static void mtk_venc_set_param(struct mtk_vcodec_enc_ctx *ctx,
 
 	mtk_v4l2_venc_dbg(0, ctx,
 			  "fmt 0x%x, P/L %d/%d w/h %d/%d buf %d/%d fps/bps %d/%d gop %d i_per %d",
-			  param->input_yuv_fmt, param->h264_profile,
-			  param->h264_level, param->width, param->height,
+			  param->input_yuv_fmt, param->profile,
+			  param->level, param->width, param->height,
 			  param->buf_width, param->buf_height,
 			  param->frm_rate, param->bitrate,
 			  param->gop_size, param->intra_period);
@@ -1157,6 +1157,8 @@ static void mtk_venc_worker(struct work_struct *work)
 		frm_buf.fb_addr[i].size =
 				(size_t)src_buf->vb2_buf.planes[i].length;
 	}
+	frm_buf.num_planes = src_buf->vb2_buf.num_planes;
+
 	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
 	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
 	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
index 0cddfa13594f..53369adc083b 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
@@ -69,8 +69,8 @@ enum mtk_encode_param {
  * @framerate_denom: frame rate denominator. ex: framerate_num=30 and
  *		     framerate_denom=1 means FPS is 30
  * @h264_max_qp: Max value for H.264 quantization parameter
- * @h264_profile: V4L2 defined H.264 profile
- * @h264_level: V4L2 defined H.264 level
+ * @profile: V4L2 defined profile
+ * @level: V4L2 defined level
  * @force_intra: force/insert intra frame
  */
 struct mtk_enc_params {
@@ -84,8 +84,8 @@ struct mtk_enc_params {
 	unsigned int	framerate_num;
 	unsigned int	framerate_denom;
 	unsigned int	h264_max_qp;
-	unsigned int	h264_profile;
-	unsigned int	h264_level;
+	unsigned int	profile;
+	unsigned int	level;
 	unsigned int	force_intra;
 };
 
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c
new file mode 100644
index 000000000000..da7cf90bd54b
--- /dev/null
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c
@@ -0,0 +1,672 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 MediaTek Inc.
+ */
+
+#include "../mtk_vcodec_enc.h"
+#include "../mtk_vcodec_enc_drv.h"
+#include "../venc_drv_base.h"
+#include "../venc_drv_if.h"
+#include "../venc_vpu_if.h"
+#include "../../common/mtk_vcodec_intr.h"
+#include "../../common/mtk_vcodec_util.h"
+
+#define SEQ_HEADER_SIZE 1024
+#define PPS_SIZE 128
+#define MAX_DPB_SIZE 16
+#define MAX_VENC_CORE 3
+#define VENC_CONFIG_LENGTH 115
+#define VENC_CONFIG_DATA 128
+#define VENC_PIC_BITSTREAM_BYTE_CNT 0x0098
+
+/**
+ * enum venc_bs_mode - encode bitstream mode
+ * @VENC_BS_MODE_SPS: encode sps
+ * @VENC_BS_MODE_PPS: encode pps
+ * @VENC_BS_MODE_VPS: encode vps
+ * @VENC_BS_MODE_SEQ_HDR: encode sequence header
+ * @VENC_BS_MODE_FRAME: encode frame
+ * @VENC_BS_MODE_FRAME_FINAL: encode final frame
+ * @VENC_BS_MODE_MAX: max value
+ */
+enum venc_bs_mode {
+	VENC_BS_MODE_SPS = 0,
+	VENC_BS_MODE_PPS,
+	VENC_BS_MODE_VPS,
+	VENC_BS_MODE_SEQ_HDR,
+	VENC_BS_MODE_FRAME,
+	VENC_BS_MODE_FRAME_FINAL,
+	VENC_BS_MODE_MAX
+};
+
+/**
+ * struct venc_config - Structure for encoder configuration
+ *                      AP-W/R : AP is writer/reader on this item
+ *                      MCU-W/R: MCU is write/reader on this item
+ * @input_fourcc: input format fourcc
+ * @bitrate: target bitrate (in bps)
+ * @pic_w: visible width of resolution
+ * @pic_h: visible height of resolution
+ * @buf_w: buffer alignment width of resolution
+ * @buf_h: buffer alignment height of resolution
+ * @gop_size: group of picture size (IDR frame period)
+ * @intra_period: I frame period
+ * @framerate: frame rate in fps
+ * @profile: profile_idc in SPS
+ * @level: level_idc in SPS
+ * @core_num: encoder core num
+ * @dpb_size: encode dpb size
+ * @reserved: reserved fields config
+ */
+struct venc_config {
+	__u32 input_fourcc;
+	__u32 bitrate;
+	__u32 pic_w;
+	__u32 pic_h;
+	__u32 buf_w;
+	__u32 buf_h;
+	__u32 gop_size;
+	__u32 intra_period;
+	__u32 framerate;
+	__u32 profile;
+	__u32 level;
+	__u32 core_num;
+	__u32 dpb_size;
+	__u32 reserved[VENC_CONFIG_LENGTH];
+};
+
+/**
+ * struct venc_config_data - Structure for configuration data
+ * @config_data: extended configuration data besides the basic configuration
+ */
+struct venc_config_data {
+	unsigned int config_data[VENC_CONFIG_DATA];
+};
+
+/**
+ * struct venc_work_buf - Structure for working buffer information
+ *                               AP-W/R : AP is writer/reader on this item
+ *                               MCU-W/R: MCU is write/reader on this item
+ * @iova: IO virtual address
+ * @pa: physical address
+ * @pa_64: for 64bit pa padding
+ * @va: virtual address
+ * @va_padding: for 64bit va padding
+ * @size: buffer size
+ * @size_padding: for 64bit size padding
+ */
+struct venc_work_buf {
+	unsigned long long iova;
+	union {
+		unsigned int pa;
+		unsigned long long pa_64;
+	};
+	union {
+		void *va;
+		unsigned long long va_padding;
+	};
+	union {
+		unsigned int size;
+		unsigned long long size_padding;
+	};
+};
+
+/**
+ * struct venc_work_buf_list - Structure for encode working buffer list
+ * @rc_code: RC code buffer
+ * @rc_info: RC info buffer
+ * @luma: luma buffer
+ * @chroma: chroma buffer
+ * @sub_luma: sub luma buffer
+ * @sub_write: sub write buffer
+ * @col_mv: col_mv buffer
+ * @wpp: wpp buffer
+ * @wpp_nbm: wpp nbm buffer
+ * @skip_frame: skip frame buffer
+ */
+struct venc_work_buf_list {
+	struct venc_work_buf rc_code;
+	struct venc_work_buf rc_info[MAX_VENC_CORE];
+	struct venc_work_buf luma[MAX_DPB_SIZE];
+	struct venc_work_buf chroma[MAX_DPB_SIZE];
+	struct venc_work_buf sub_luma[MAX_DPB_SIZE];
+	struct venc_work_buf sub_write[MAX_DPB_SIZE];
+	struct venc_work_buf col_mv[MAX_DPB_SIZE];
+	struct venc_work_buf wpp[MAX_VENC_CORE];
+	struct venc_work_buf wpp_nbm[MAX_VENC_CORE];
+	struct venc_work_buf skip_frame;
+};
+
+/**
+ * struct venc_info -  Structure for encode frame and bs information
+ * @fb_addr: frame buffer address array
+ * @fb_size: frame buffer size array
+ * @bs_addr: bitstream buffer address
+ * @bs_size: bitstream buffer size
+ */
+struct venc_info {
+	unsigned long long fb_addr[VIDEO_MAX_PLANES];
+	unsigned int fb_size[VIDEO_MAX_PLANES];
+	unsigned long long bs_addr;
+	unsigned long long bs_size;
+};
+
+/**
+ * struct venc_vsi - Structure for VCP driver control and info share
+ *                   AP-W/R : AP is writer/reader on this item
+ *                   VCP-W/R: VCP is write/reader on this item
+ * @config: encoder configuration
+ * @data: encoder configuration data
+ * @bufs: encoder working buffers
+ * @venc: encoder information
+ */
+struct venc_vsi {
+	struct venc_config config;
+	struct venc_config_data data;
+	struct venc_work_buf_list bufs;
+	struct venc_info venc;
+};
+
+/**
+ * struct venc_inst - Structure for encoder instance
+ * @hw_base: hardware io address
+ * @pps_buf: PPS buffer
+ * @seq_buf: sequence header buffer
+ * @work_buf_allocated: work buffer allocated or not
+ * @frm_cnt: encoded frame count
+ * @skip_frm_cnt: encoded skip frame count
+ * @prepend_hdr: prepend header flag
+ * @vpu_inst: vpu instance
+ * @vsi: encode vsi
+ * @ctx: encoder context
+ */
+struct venc_inst {
+	void __iomem *hw_base;
+	struct mtk_vcodec_mem pps_buf;
+	struct mtk_vcodec_mem seq_buf;
+	bool work_buf_allocated;
+	unsigned int frm_cnt;
+	unsigned int skip_frm_cnt;
+	unsigned int prepend_hdr;
+	struct venc_vpu_inst vpu_inst;
+	struct venc_vsi *vsi;
+	struct mtk_vcodec_enc_ctx *ctx;
+};
+
+static int venc_init(struct mtk_vcodec_enc_ctx *ctx)
+{
+	int ret = 0;
+	struct venc_inst *inst;
+
+	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
+	if (!inst)
+		return -ENOMEM;
+
+	inst->ctx = ctx;
+	inst->vpu_inst.ctx = ctx;
+	inst->vpu_inst.id = mtk_vcodec_fw_get_venc_ipi(ctx->dev->fw_handler->type);
+	inst->hw_base = mtk_vcodec_get_reg_addr(inst->ctx->dev->reg_base, VENC_SYS);
+
+	ret = vpu_enc_init(&inst->vpu_inst);
+	inst->vsi = (struct venc_vsi *)inst->vpu_inst.vsi;
+
+	if (ret)
+		kfree(inst);
+	else
+		ctx->drv_handle = inst;
+
+	return ret;
+}
+
+static inline u32 venc_read_reg(struct venc_inst *inst, u32 addr)
+{
+	return readl(inst->hw_base + addr);
+}
+
+static unsigned int venc_wait_encode_done(struct venc_inst *inst)
+{
+	unsigned int irq_status = 0;
+	struct mtk_vcodec_enc_ctx *ctx = (struct mtk_vcodec_enc_ctx *)inst->ctx;
+
+	if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
+					  WAIT_INTR_TIMEOUT_MS, 0)) {
+		irq_status = ctx->irq_status;
+		mtk_venc_debug(ctx, "irq_status %x <-", irq_status);
+	}
+	return irq_status;
+}
+
+static void venc_set_bufs(struct venc_inst *inst,
+			  struct venc_frm_buf *frm_buf,
+			  struct mtk_vcodec_mem *bs_buf)
+{
+	unsigned int i;
+
+	if (frm_buf) {
+		for (i = 0; i < frm_buf->num_planes; i++) {
+			inst->vsi->venc.fb_addr[i] = frm_buf->fb_addr[i].dma_addr;
+			inst->vsi->venc.fb_size[i] = frm_buf->fb_addr[i].size;
+			mtk_venc_debug(inst->ctx, "%s: fb_buf[%d]: %llx(%d)\n",
+				       __func__, i,
+				       inst->vsi->venc.fb_addr[i],
+				       inst->vsi->venc.fb_size[i]);
+		}
+	}
+
+	if (bs_buf) {
+		inst->vsi->venc.bs_addr = bs_buf->dma_addr;
+		inst->vsi->venc.bs_size = bs_buf->size;
+		mtk_venc_debug(inst->ctx, "%s: bs_buf: %llx(%d)\n",
+			       __func__,
+			       inst->vsi->venc.bs_addr,
+			       (unsigned int)inst->vsi->venc.bs_size);
+	}
+}
+
+static int venc_encode_sps(struct venc_inst *inst,
+			   struct mtk_vcodec_mem *bs_buf,
+			   unsigned int *bs_size)
+{
+	int ret = 0;
+	unsigned int irq_status;
+
+	venc_set_bufs(inst, NULL, bs_buf);
+	ret = vpu_enc_encode(&inst->vpu_inst, VENC_BS_MODE_SPS, NULL, bs_buf, NULL);
+	if (ret)
+		return ret;
+
+	irq_status = venc_wait_encode_done(inst);
+	if (irq_status != MTK_VENC_IRQ_STATUS_SPS) {
+		mtk_venc_err(inst->ctx, "expect irq status %d", MTK_VENC_IRQ_STATUS_SPS);
+		return -EINVAL;
+	}
+
+	*bs_size = venc_read_reg(inst, VENC_PIC_BITSTREAM_BYTE_CNT);
+	mtk_venc_debug(inst->ctx, "sps bs size %d <-", *bs_size);
+
+	return ret;
+}
+
+static int venc_encode_pps(struct venc_inst *inst,
+			   struct mtk_vcodec_mem *bs_buf,
+			   unsigned int *bs_size)
+{
+	int ret = 0;
+	unsigned int irq_status;
+
+	venc_set_bufs(inst, NULL, bs_buf);
+	ret = vpu_enc_encode(&inst->vpu_inst, VENC_BS_MODE_PPS, NULL, bs_buf, NULL);
+	if (ret)
+		return ret;
+
+	irq_status = venc_wait_encode_done(inst);
+	if (irq_status != MTK_VENC_IRQ_STATUS_PPS) {
+		mtk_venc_err(inst->ctx, "expect irq status %d", MTK_VENC_IRQ_STATUS_PPS);
+		return -EINVAL;
+	}
+
+	*bs_size = venc_read_reg(inst, VENC_PIC_BITSTREAM_BYTE_CNT);
+	mtk_venc_debug(inst->ctx, "pps bs size %d <-", *bs_size);
+
+	return ret;
+}
+
+static int venc_encode_header(struct venc_inst *inst,
+			      struct mtk_vcodec_mem *bs_buf,
+			      unsigned int *bs_size)
+{
+	int ret = 0;
+	unsigned int bs_size_sps;
+	unsigned int bs_size_pps;
+
+	ret = venc_encode_sps(inst, bs_buf, &bs_size_sps);
+	if (ret)
+		return ret;
+
+	ret = venc_encode_pps(inst, &inst->pps_buf, &bs_size_pps);
+	if (ret)
+		return ret;
+
+	memcpy(bs_buf->va + bs_size_sps, inst->pps_buf.va, bs_size_pps);
+	*bs_size = bs_size_sps + bs_size_pps;
+
+	return ret;
+}
+
+static int venc_encode_frame(struct venc_inst *inst,
+			     struct venc_frm_buf *frm_buf,
+			     struct mtk_vcodec_mem *bs_buf,
+			     unsigned int *bs_size)
+{
+	int ret = 0;
+	unsigned int irq_status;
+
+	venc_set_bufs(inst, frm_buf, bs_buf);
+	ret = vpu_enc_encode(&inst->vpu_inst, VENC_BS_MODE_FRAME, frm_buf, bs_buf, NULL);
+	if (ret)
+		return ret;
+
+	irq_status = venc_wait_encode_done(inst);
+	if (irq_status != MTK_VENC_IRQ_STATUS_FRM) {
+		mtk_venc_err(inst->ctx, "expect irq status %d", MTK_VENC_IRQ_STATUS_FRM);
+		return -EINVAL;
+	}
+
+	*bs_size = venc_read_reg(inst, VENC_PIC_BITSTREAM_BYTE_CNT);
+
+	++inst->frm_cnt;
+
+	return ret;
+}
+
+static int venc_encode(void *handle,
+		       enum venc_start_opt opt,
+		       struct venc_frm_buf *frm_buf,
+		       struct mtk_vcodec_mem *bs_buf,
+		       struct venc_done_result *result)
+{
+	int ret = 0;
+	struct venc_inst *inst = (struct venc_inst *)handle;
+	struct mtk_vcodec_enc_ctx *ctx;
+	unsigned int bs_size_hdr;
+
+	if (WARN_ON(!inst || !inst->vsi))
+		return -EINVAL;
+
+	ctx = inst->ctx;
+
+	mtk_venc_debug(ctx, "%s: opt: %d\n", __func__, opt);
+
+	enable_irq(ctx->dev->enc_irq);
+	switch (opt) {
+	case VENC_START_OPT_ENCODE_SEQUENCE_HEADER: {
+		ret = venc_encode_header(inst, bs_buf, &bs_size_hdr);
+		if (ret)
+			goto encode_err;
+
+		result->bs_size = bs_size_hdr;
+		result->is_key_frm = false;
+		break;
+	}
+
+	case VENC_START_OPT_ENCODE_FRAME: {
+		if (!inst->prepend_hdr) {
+			ret = venc_encode_frame(inst, frm_buf, bs_buf, &result->bs_size);
+			if (ret)
+				goto encode_err;
+
+			result->is_key_frm = inst->vpu_inst.is_key_frm;
+			break;
+		}
+
+		ret = venc_encode_header(inst, &inst->seq_buf, &bs_size_hdr);
+		if (ret)
+			goto encode_err;
+
+		ret = venc_encode_frame(inst, frm_buf, bs_buf, &result->bs_size);
+		if (ret)
+			goto encode_err;
+
+		memmove(bs_buf->va + bs_size_hdr, bs_buf->va, result->bs_size);
+		memcpy(bs_buf->va, inst->seq_buf.va, bs_size_hdr);
+		result->bs_size += bs_size_hdr;
+
+		inst->prepend_hdr = 0;
+		result->is_key_frm = inst->vpu_inst.is_key_frm;
+		break;
+	}
+
+	default:
+		mtk_venc_err(inst->ctx, "venc_opt %d not supported", opt);
+		ret = -EINVAL;
+		break;
+	}
+
+encode_err:
+	disable_irq(ctx->dev->enc_irq);
+	mtk_venc_debug(ctx, "opt %d, return %d", opt, ret);
+
+	return ret;
+}
+
+static int mtk_venc_mem_alloc(struct venc_inst *inst,
+			      struct device *dev,
+			      struct venc_work_buf *buf)
+{
+	dma_addr_t dma_addr;
+
+	if (WARN_ON(!dev || !buf))
+		return -EINVAL;
+
+	if (buf->size == 0)
+		return 0;
+
+	buf->va = dma_alloc_coherent(dev, buf->size, &dma_addr, GFP_KERNEL);
+	if (!buf->va)
+		return -ENOMEM;
+
+	buf->iova = (unsigned long long)dma_addr;
+
+	mtk_venc_debug(inst->ctx, "allocate buffer, size: %d, va: %p, iova: 0x%llx",
+		       buf->size, buf->va, buf->iova);
+
+	return 0;
+}
+
+static void mtk_venc_mem_free(struct venc_inst *inst,
+			      struct device *dev,
+			      struct venc_work_buf *buf)
+{
+	if (WARN_ON(!dev || !buf))
+		return;
+
+	if (!buf->va)
+		return;
+
+	mtk_venc_debug(inst->ctx, "free buffer, size: %d, va: %p, iova: 0x%llx",
+		       buf->size, buf->va, buf->iova);
+
+	dma_free_coherent(dev, buf->size, buf->va, buf->iova);
+	buf->va = NULL;
+	buf->iova = 0;
+	buf->size = 0;
+}
+
+static void venc_free_rc_buf(struct venc_inst *inst,
+			     struct venc_work_buf_list *bufs,
+			     unsigned int core_num)
+{
+	int i;
+	struct device *dev;
+
+	dev = &inst->ctx->dev->plat_dev->dev;
+	mtk_venc_mem_free(inst, dev, &bufs->rc_code);
+
+	for (i = 0; i < core_num; i++)
+		mtk_venc_mem_free(inst, dev, &bufs->rc_info[i]);
+}
+
+static void venc_free_work_buf(struct venc_inst *inst)
+{
+	int i;
+	struct venc_work_buf_list *bufs = &inst->vsi->bufs;
+	unsigned int core_num = inst->vsi->config.core_num;
+	unsigned int dpb_size = inst->vsi->config.dpb_size;
+	struct device *dev;
+
+	if (bufs->rc_code.va)
+		venc_free_rc_buf(inst, bufs, core_num);
+
+	dev = &inst->ctx->dev->plat_dev->dev;
+
+	for (i = 0; i < core_num; i++) {
+		mtk_venc_mem_free(inst, dev, &bufs->wpp[i]);
+		mtk_venc_mem_free(inst, dev, &bufs->wpp_nbm[i]);
+	}
+
+	for (i = 0; i < dpb_size; i++) {
+		mtk_venc_mem_free(inst, dev, &bufs->luma[i]);
+		mtk_venc_mem_free(inst, dev, &bufs->chroma[i]);
+		mtk_venc_mem_free(inst, dev, &bufs->sub_luma[i]);
+		mtk_venc_mem_free(inst, dev, &bufs->sub_write[i]);
+		mtk_venc_mem_free(inst, dev, &bufs->col_mv[i]);
+	}
+
+	if (inst->pps_buf.va)
+		mtk_vcodec_mem_free(inst->ctx, &inst->pps_buf);
+
+	if (inst->seq_buf.va)
+		mtk_vcodec_mem_free(inst->ctx, &inst->seq_buf);
+}
+
+static int venc_alloc_rc_buf(struct venc_inst *inst,
+			     struct venc_work_buf_list *bufs,
+			     unsigned int core_num)
+{
+	int i;
+	struct mtk_vcodec_fw *fw = inst->ctx->dev->fw_handler;
+	struct device *dev;
+	void *tmp_va;
+
+	dev = &inst->ctx->dev->plat_dev->dev;
+	if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_code))
+		return -ENOMEM;
+
+	tmp_va = mtk_vcodec_fw_map_dm_addr(fw, bufs->rc_code.pa);
+	memcpy(bufs->rc_code.va, tmp_va, bufs->rc_code.size);
+
+	for (i = 0; i < core_num; i++) {
+		if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_info[i]))
+			goto err_rc_buf;
+	}
+
+	return 0;
+
+err_rc_buf:
+	venc_free_rc_buf(inst, bufs, core_num);
+
+	return -ENOMEM;
+}
+
+static int venc_alloc_work_buf(struct venc_inst *inst)
+{
+	int i, ret;
+	struct venc_work_buf_list *bufs = &inst->vsi->bufs;
+	unsigned int core_num = inst->vsi->config.core_num;
+	unsigned int dpb_size = inst->vsi->config.dpb_size;
+	struct device *dev;
+
+	if (bufs->rc_code.size != 0) {
+		ret = venc_alloc_rc_buf(inst, bufs, core_num);
+		if (ret) {
+			mtk_venc_err(inst->ctx, "cannot allocate rc buf");
+			return -ENOMEM;
+		}
+	}
+
+	dev = &inst->ctx->dev->plat_dev->dev;
+
+	for (i = 0; i < core_num; i++) {
+		if (mtk_venc_mem_alloc(inst, dev, &bufs->wpp[i]) ||
+		    mtk_venc_mem_alloc(inst, dev, &bufs->wpp_nbm[i]))
+			goto err_alloc;
+	}
+
+	for (i = 0; i < dpb_size; i++) {
+		if (mtk_venc_mem_alloc(inst, dev, &bufs->luma[i]) ||
+		    mtk_venc_mem_alloc(inst, dev, &bufs->chroma[i]) ||
+		    mtk_venc_mem_alloc(inst, dev, &bufs->sub_luma[i]) ||
+		    mtk_venc_mem_alloc(inst, dev, &bufs->sub_write[i]) ||
+		    mtk_venc_mem_alloc(inst, dev, &bufs->col_mv[i]))
+			goto err_alloc;
+	}
+
+	/* the pps_buf and seq_buf are used by AP side only */
+	inst->pps_buf.size = PPS_SIZE;
+	ret = mtk_vcodec_mem_alloc(inst->ctx, &inst->pps_buf);
+	if (ret) {
+		mtk_venc_err(inst->ctx, "cannot allocate pps_buf");
+		goto err_alloc;
+	}
+
+	inst->seq_buf.size = SEQ_HEADER_SIZE;
+	ret = mtk_vcodec_mem_alloc(inst->ctx, &inst->seq_buf);
+	if (ret) {
+		mtk_venc_err(inst->ctx, "cannot allocate seq_buf");
+		goto err_alloc;
+	}
+	return 0;
+
+err_alloc:
+	venc_free_work_buf(inst);
+	return -ENOMEM;
+}
+
+static int venc_set_param(void *handle,
+			  enum venc_set_param_type type,
+			  struct venc_enc_param *enc_prm)
+{
+	int ret = 0;
+	struct venc_inst *inst = (struct venc_inst *)handle;
+
+	switch (type) {
+	case VENC_SET_PARAM_ENC:
+		if (WARN_ON(!inst->vsi))
+			return -EINVAL;
+		inst->vsi->config.input_fourcc = enc_prm->input_yuv_fmt;
+		inst->vsi->config.bitrate = enc_prm->bitrate;
+		inst->vsi->config.pic_w = enc_prm->width;
+		inst->vsi->config.pic_h = enc_prm->height;
+		inst->vsi->config.buf_w = enc_prm->buf_width;
+		inst->vsi->config.buf_h = enc_prm->buf_height;
+		inst->vsi->config.gop_size = enc_prm->gop_size;
+		inst->vsi->config.framerate = enc_prm->frm_rate;
+		inst->vsi->config.intra_period = enc_prm->intra_period;
+		inst->vsi->config.profile = enc_prm->profile;
+		inst->vsi->config.level = enc_prm->level;
+
+		ret = vpu_enc_set_param(&inst->vpu_inst, type, enc_prm);
+		if (ret)
+			break;
+
+		if (inst->work_buf_allocated) {
+			venc_free_work_buf(inst);
+			inst->work_buf_allocated = false;
+		}
+		ret = venc_alloc_work_buf(inst);
+		if (ret)
+			break;
+		inst->work_buf_allocated = true;
+		break;
+	case VENC_SET_PARAM_PREPEND_HEADER:
+		inst->prepend_hdr = 1;
+		break;
+	default:
+		ret = vpu_enc_set_param(&inst->vpu_inst, type, enc_prm);
+		break;
+	}
+
+	return ret;
+}
+
+static int venc_deinit(void *handle)
+{
+	int ret = 0;
+	struct venc_inst *inst = (struct venc_inst *)handle;
+
+	ret = vpu_enc_deinit(&inst->vpu_inst);
+
+	if (inst->work_buf_allocated)
+		venc_free_work_buf(inst);
+
+	kfree(inst);
+
+	return ret;
+}
+
+const struct venc_common_if venc_if = {
+	.init = venc_init,
+	.encode = venc_encode,
+	.set_param = venc_set_param,
+	.deinit = venc_deinit,
+};
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
index 0f63657d8bad..4160dc995806 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
@@ -723,9 +723,9 @@ static void h264_enc_set_vsi_configs(struct venc_h264_inst *inst,
 	inst->vsi->config.framerate = enc_prm->frm_rate;
 	inst->vsi->config.intra_period = enc_prm->intra_period;
 	inst->vsi->config.profile =
-		h264_get_profile(inst, enc_prm->h264_profile);
+		h264_get_profile(inst, enc_prm->profile);
 	inst->vsi->config.level =
-		h264_get_level(inst, enc_prm->h264_level);
+		h264_get_level(inst, enc_prm->level);
 	inst->vsi->config.wfd = 0;
 }
 
@@ -742,9 +742,9 @@ static void h264_enc_set_vsi_34_configs(struct venc_h264_inst *inst,
 	inst->vsi_34->config.framerate = enc_prm->frm_rate;
 	inst->vsi_34->config.intra_period = enc_prm->intra_period;
 	inst->vsi_34->config.profile =
-		h264_get_profile(inst, enc_prm->h264_profile);
+		h264_get_profile(inst, enc_prm->profile);
 	inst->vsi_34->config.level =
-		h264_get_level(inst, enc_prm->h264_level);
+		h264_get_level(inst, enc_prm->level);
 	inst->vsi_34->config.wfd = 0;
 }
 
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.h b/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.h
index 889440a436b6..3c2a1b5e9312 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.h
@@ -66,8 +66,8 @@ enum venc_set_param_type {
  * struct venc_enc_prm - encoder settings for VENC_SET_PARAM_ENC used in
  *					  venc_if_set_param()
  * @input_fourcc: input yuv format
- * @h264_profile: V4L2 defined H.264 profile
- * @h264_level: V4L2 defined H.264 level
+ * @profile: V4L2 defined profile
+ * @level: V4L2 defined level
  * @width: image width
  * @height: image height
  * @buf_width: buffer width
@@ -79,8 +79,8 @@ enum venc_set_param_type {
  */
 struct venc_enc_param {
 	enum venc_yuv_fmt input_yuv_fmt;
-	unsigned int h264_profile;
-	unsigned int h264_level;
+	unsigned int profile;
+	unsigned int level;
 	unsigned int width;
 	unsigned int height;
 	unsigned int buf_width;
@@ -107,9 +107,11 @@ struct venc_frame_info {
 /*
  * struct venc_frm_buf - frame buffer information used in venc_if_encode()
  * @fb_addr: plane frame buffer addresses
+ * @num_planes: number of planes
  */
 struct venc_frm_buf {
 	struct mtk_vcodec_fb fb_addr[MTK_VCODEC_MAX_PLANES];
+	unsigned int num_planes;
 };
 
 /*
@@ -124,6 +126,7 @@ struct venc_done_result {
 
 extern const struct venc_common_if venc_h264_if;
 extern const struct venc_common_if venc_vp8_if;
+extern const struct venc_common_if venc_if;
 
 /*
  * venc_if_init - Create the driver handle
-- 
2.45.2

[PATCH v4 2/6] media: mediatek: encoder: Add support for common firmware interface

[Irui Wang]

The existing encoder firmware interface implied just one type of codec:
H.264. Future encoders may support additional codecs; however adding
entire sets of interfaces for them is not scalable.

Instead, a new "common" firmware interface is defined for non codec
specific messages. The new messages encapsulate the old ones for
backward compatibility.

This patch adds support for these new messages.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 .../vcodec/encoder/mtk_vcodec_enc_drv.h       |  3 ++
 .../mediatek/vcodec/encoder/venc_drv_if.c     |  3 +-
 .../mediatek/vcodec/encoder/venc_ipi_msg.h    | 26 +++++++++++++++
 .../mediatek/vcodec/encoder/venc_vpu_if.c     | 33 ++++++++++++-------
 4 files changed, 52 insertions(+), 13 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
index 53369adc083b..0529564027c4 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
@@ -16,6 +16,7 @@
 
 #define MTK_ENC_CTX_IS_EXT(ctx) ((ctx)->dev->venc_pdata->uses_ext)
 #define MTK_ENC_IOVA_IS_34BIT(ctx) ((ctx)->dev->venc_pdata->uses_34bit)
+#define MTK_ENC_DRV_IS_COMM(ctx) (((ctx)->dev->venc_pdata->uses_common_fw_iface))
 
 /**
  * struct mtk_vcodec_enc_pdata - compatible data for each IC
@@ -29,6 +30,7 @@
  * @num_output_formats: number of entries in output_formats
  * @core_id: stand for h264 or vp8 encode index
  * @uses_34bit: whether the encoder uses 34-bit iova
+ * @uses_common_fw_iface: whether the encoder uses common driver interface
  */
 struct mtk_vcodec_enc_pdata {
 	bool uses_ext;
@@ -40,6 +42,7 @@ struct mtk_vcodec_enc_pdata {
 	size_t num_output_formats;
 	u8 core_id;
 	bool uses_34bit;
+	bool uses_common_fw_iface;
 };
 
 /*
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.c
index e83747b8d69a..f8c9349c18c0 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_drv_if.c
@@ -19,13 +19,14 @@
 int venc_if_init(struct mtk_vcodec_enc_ctx *ctx, unsigned int fourcc)
 {
 	int ret = 0;
+	const bool uses_common_fw_iface = MTK_ENC_DRV_IS_COMM(ctx);
 
 	switch (fourcc) {
 	case V4L2_PIX_FMT_VP8:
 		ctx->enc_if = &venc_vp8_if;
 		break;
 	case V4L2_PIX_FMT_H264:
-		ctx->enc_if = &venc_h264_if;
+		ctx->enc_if = uses_common_fw_iface ? &venc_if : &venc_h264_if;
 		break;
 	default:
 		return -EINVAL;
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_ipi_msg.h b/drivers/media/platform/mediatek/vcodec/encoder/venc_ipi_msg.h
index bb16d96a7f57..ce3c2c8059fb 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_ipi_msg.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_ipi_msg.h
@@ -45,6 +45,20 @@ struct venc_ap_ipi_msg_init {
 	uint64_t venc_inst;
 };
 
+/**
+ * struct venc_ap_ipi_msg_init_comm - AP to VPU init cmd structure
+ * @base: AP to VPU init cmd structure
+ * @codec_type: encoder type
+ * @reserved: reserved field
+ * @shared_iova: shared iova
+ */
+struct venc_ap_ipi_msg_init_comm {
+	struct venc_ap_ipi_msg_init base;
+	u32 codec_type;
+	u32 reserved;
+	u64 shared_iova;
+};
+
 /**
  * struct venc_ap_ipi_msg_set_param - AP to VPU set_param cmd structure
  * @msg_id:	message id (AP_IPIMSG_XXX_ENC_SET_PARAM)
@@ -175,6 +189,18 @@ struct venc_vpu_ipi_msg_init {
 	uint32_t venc_abi_version;
 };
 
+/**
+ * struct venc_vpu_ipi_msg_init_comm - VPU ack AP init cmd structure
+ * @init_ack: AP init cmd structure
+ * @vpu_vsi_addr: VSI address from VPU
+ * @reserved: reserved field
+ */
+struct venc_vpu_ipi_msg_init_comm {
+	struct venc_vpu_ipi_msg_init init_ack;
+	u32 vpu_vsi_addr;
+	u32 reserved;
+};
+
 /**
  * struct venc_vpu_ipi_msg_set_param - VPU ack AP set_param cmd structure
  * @msg_id:	message id (VPU_IPIMSG_XXX_ENC_SET_PARAM_DONE)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
index 0c825aa7224d..7772b8442ebc 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
@@ -10,24 +10,25 @@
 
 static void handle_enc_init_msg(struct venc_vpu_inst *vpu, const void *data)
 {
-	const struct venc_vpu_ipi_msg_init *msg = data;
+	const struct venc_vpu_ipi_msg_init_comm *msg = data;
+	struct mtk_vcodec_fw *fw = vpu->ctx->dev->fw_handler;
 
-	vpu->inst_addr = msg->vpu_inst_addr;
-	vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler,
-					     msg->vpu_inst_addr);
+	vpu->inst_addr = msg->init_ack.vpu_inst_addr;
+	vpu->vsi = mtk_vcodec_fw_map_dm_addr(fw, vpu->inst_addr);
 
 	/* Firmware version field value is unspecified on MT8173. */
-	if (mtk_vcodec_fw_get_type(vpu->ctx->dev->fw_handler) == VPU)
+	if (mtk_vcodec_fw_get_type(fw) == VPU)
 		return;
 
 	/* Check firmware version. */
-	mtk_venc_debug(vpu->ctx, "firmware version: 0x%x\n", msg->venc_abi_version);
-	switch (msg->venc_abi_version) {
+	mtk_venc_debug(vpu->ctx, "firmware version: 0x%x\n",
+		       msg->init_ack.venc_abi_version);
+	switch (msg->init_ack.venc_abi_version) {
 	case 1:
 		break;
 	default:
 		mtk_venc_err(vpu->ctx, "unhandled firmware version 0x%x\n",
-			     msg->venc_abi_version);
+			     msg->init_ack.venc_abi_version);
 		vpu->failure = 1;
 		break;
 	}
@@ -133,7 +134,8 @@ static int vpu_enc_send_msg(struct venc_vpu_inst *vpu, void *msg,
 int vpu_enc_init(struct venc_vpu_inst *vpu)
 {
 	int status;
-	struct venc_ap_ipi_msg_init out = { };
+	size_t msg_size;
+	struct venc_ap_ipi_msg_init_comm out = { };
 
 	init_waitqueue_head(&vpu->wq_hd);
 	vpu->signaled = 0;
@@ -149,9 +151,16 @@ int vpu_enc_init(struct venc_vpu_inst *vpu)
 		return -EINVAL;
 	}
 
-	out.msg_id = AP_IPIMSG_ENC_INIT;
-	out.venc_inst = (unsigned long)vpu;
-	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
+	out.base.msg_id = AP_IPIMSG_ENC_INIT;
+	out.base.venc_inst = (unsigned long)vpu;
+	if (MTK_ENC_DRV_IS_COMM(vpu->ctx)) {
+		out.codec_type = vpu->ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc;
+		msg_size = sizeof(struct venc_ap_ipi_msg_init_comm);
+	} else {
+		msg_size = sizeof(struct venc_ap_ipi_msg_init);
+	}
+
+	if (vpu_enc_send_msg(vpu, &out, msg_size)) {
 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_INIT fail");
 		return -EINVAL;
 	}
-- 
2.45.2

[PATCH v4 3/6] media: mediatek: encoder: Add support for VCP encode process

[Irui Wang]

Adapt the encoder driver to support VCP firmware interface.

Set the encoder driver firmware type to 'VCP'.
Allocate RC buffers using the VCP device.
Send the shared memory address to VCP and map the encoder VSI address
to the CPU address space using the VCP shared memory address.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
 .../mediatek/vcodec/common/mtk_vcodec_fw.c    |  6 +++++
 .../mediatek/vcodec/common/mtk_vcodec_fw.h    |  1 +
 .../vcodec/common/mtk_vcodec_fw_priv.h        |  1 +
 .../vcodec/common/mtk_vcodec_fw_vcp.c         |  6 +++++
 .../vcodec/encoder/mtk_vcodec_enc_drv.c       |  3 +++
 .../vcodec/encoder/venc/venc_common_if.c      | 23 ++++++++++++++-----
 .../mediatek/vcodec/encoder/venc_vpu_if.c     | 14 ++++++++++-
 7 files changed, 47 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
index 0381acceda25..7a504f093bd8 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.c
@@ -105,3 +105,9 @@ int mtk_vcodec_fw_get_type(struct mtk_vcodec_fw *fw)
 	return fw->type;
 }
 EXPORT_SYMBOL_GPL(mtk_vcodec_fw_get_type);
+
+struct device *mtk_vcodec_fw_get_dev(struct mtk_vcodec_fw *fw)
+{
+	return fw->ops->get_fw_dev(fw);
+}
+EXPORT_SYMBOL_GPL(mtk_vcodec_fw_get_dev);
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
index e7304a7dd3e0..56c26b91651e 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
@@ -43,5 +43,6 @@ int mtk_vcodec_fw_ipi_send(struct mtk_vcodec_fw *fw, int id,
 int mtk_vcodec_fw_get_type(struct mtk_vcodec_fw *fw);
 int mtk_vcodec_fw_get_ipi(enum mtk_vcodec_fw_type type, int hw_id);
 int mtk_vcodec_fw_get_venc_ipi(enum mtk_vcodec_fw_type type);
+struct device *mtk_vcodec_fw_get_dev(struct mtk_vcodec_fw *fw);
 
 #endif /* _MTK_VCODEC_FW_H_ */
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_priv.h b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_priv.h
index 0a2a9b010244..710c83c871f4 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_priv.h
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_priv.h
@@ -29,6 +29,7 @@ struct mtk_vcodec_fw_ops {
 	int (*ipi_send)(struct mtk_vcodec_fw *fw, int id, void *buf,
 			unsigned int len, unsigned int wait);
 	void (*release)(struct mtk_vcodec_fw *fw);
+	struct device *(*get_fw_dev)(struct mtk_vcodec_fw *fw);
 };
 
 #if IS_ENABLED(CONFIG_VIDEO_MEDIATEK_VCODEC_VPU)
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.c
index 6b69ce44d4bb..2859fe78f67d 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.c
@@ -500,6 +500,11 @@ static void mtk_vcodec_vcp_release(struct mtk_vcodec_fw *fw)
 
 }
 
+static struct device *mtk_vcodec_vcp_get_fw_dev(struct mtk_vcodec_fw *fw)
+{
+	return fw->vcp->vcp_device->dev;
+}
+
 static const struct mtk_vcodec_fw_ops mtk_vcodec_vcp_msg = {
 	.load_firmware = mtk_vcodec_vcp_load_firmware,
 	.get_vdec_capa = mtk_vcodec_vcp_get_vdec_capa,
@@ -508,6 +513,7 @@ static const struct mtk_vcodec_fw_ops mtk_vcodec_vcp_msg = {
 	.ipi_register = mtk_vcodec_vcp_set_ipi_register,
 	.ipi_send = mtk_vcodec_vcp_ipi_send,
 	.release = mtk_vcodec_vcp_release,
+	.get_fw_dev = mtk_vcodec_vcp_get_fw_dev,
 };
 
 struct mtk_vcodec_fw *mtk_vcodec_fw_vcp_init(void *priv, enum mtk_vcodec_fw_use fw_use)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
index 82b8ff38e8f1..36065c8ad94f 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
@@ -253,6 +253,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	} else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp",
 					 &rproc_phandle)) {
 		fw_type = SCP;
+	} else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vcp",
+					 &rproc_phandle)) {
+		fw_type = VCP;
 	} else {
 		dev_err(&pdev->dev, "[MTK VCODEC] Could not get venc IPI device");
 		return -ENODEV;
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c
index da7cf90bd54b..b28d559285ea 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_common_if.c
@@ -478,8 +478,13 @@ static void venc_free_rc_buf(struct venc_inst *inst,
 {
 	int i;
 	struct device *dev;
+	struct mtk_vcodec_fw *fw = inst->ctx->dev->fw_handler;
+
+	if (mtk_vcodec_fw_get_type(fw) == VCP)
+		dev = mtk_vcodec_fw_get_dev(fw);
+	else
+		dev = &inst->ctx->dev->plat_dev->dev;
 
-	dev = &inst->ctx->dev->plat_dev->dev;
 	mtk_venc_mem_free(inst, dev, &bufs->rc_code);
 
 	for (i = 0; i < core_num; i++)
@@ -528,12 +533,18 @@ static int venc_alloc_rc_buf(struct venc_inst *inst,
 	struct device *dev;
 	void *tmp_va;
 
-	dev = &inst->ctx->dev->plat_dev->dev;
-	if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_code))
-		return -ENOMEM;
+	if (mtk_vcodec_fw_get_type(fw) == VCP) {
+		dev = mtk_vcodec_fw_get_dev(fw);
+		if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_code))
+			return -ENOMEM;
+	} else {
+		dev = &inst->ctx->dev->plat_dev->dev;
+		if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_code))
+			return -ENOMEM;
 
-	tmp_va = mtk_vcodec_fw_map_dm_addr(fw, bufs->rc_code.pa);
-	memcpy(bufs->rc_code.va, tmp_va, bufs->rc_code.size);
+		tmp_va = mtk_vcodec_fw_map_dm_addr(fw, bufs->rc_code.pa);
+		memcpy(bufs->rc_code.va, tmp_va, bufs->rc_code.size);
+	}
 
 	for (i = 0; i < core_num; i++) {
 		if (mtk_venc_mem_alloc(inst, dev, &bufs->rc_info[i]))
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
index 7772b8442ebc..0f4693e04a9f 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
@@ -8,13 +8,23 @@
 #include "venc_ipi_msg.h"
 #include "venc_vpu_if.h"
 
+#define VSI_OFFSET_MASK 0x0FFFFFFF
+
 static void handle_enc_init_msg(struct venc_vpu_inst *vpu, const void *data)
 {
 	const struct venc_vpu_ipi_msg_init_comm *msg = data;
 	struct mtk_vcodec_fw *fw = vpu->ctx->dev->fw_handler;
+	u64 pa_start, vsi_offset;
 
 	vpu->inst_addr = msg->init_ack.vpu_inst_addr;
-	vpu->vsi = mtk_vcodec_fw_map_dm_addr(fw, vpu->inst_addr);
+
+	if (mtk_vcodec_fw_get_type(fw) == VCP) {
+		pa_start = (u64)fw->vcp->iova_addr;
+		vsi_offset = (msg->vpu_vsi_addr & VSI_OFFSET_MASK) - (pa_start & VSI_OFFSET_MASK);
+		vpu->vsi = mtk_vcodec_fw_map_dm_addr(fw, ENCODER_MEM) + vsi_offset;
+	} else {
+		vpu->vsi = mtk_vcodec_fw_map_dm_addr(fw, msg->vpu_vsi_addr);
+	}
 
 	/* Firmware version field value is unspecified on MT8173. */
 	if (mtk_vcodec_fw_get_type(fw) == VPU)
@@ -155,6 +165,8 @@ int vpu_enc_init(struct venc_vpu_inst *vpu)
 	out.base.venc_inst = (unsigned long)vpu;
 	if (MTK_ENC_DRV_IS_COMM(vpu->ctx)) {
 		out.codec_type = vpu->ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc;
+		if (mtk_vcodec_fw_get_type(vpu->ctx->dev->fw_handler) == VCP)
+			out.shared_iova = vpu->ctx->dev->fw_handler->vcp->iova_addr;
 		msg_size = sizeof(struct venc_ap_ipi_msg_init_comm);
 	} else {
 		msg_size = sizeof(struct venc_ap_ipi_msg_init);
-- 
2.45.2

[PATCH v4 4/6] media: mediatek: encoder: Add a new platform data member

[Irui Wang]

Add a new platform data member to indicate each encoder IC, so that the
get chip name function by 'of_device_is_compatible' can be removed.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 .../mediatek/vcodec/encoder/mtk_vcodec_enc.c  | 22 ++-----------------
 .../vcodec/encoder/mtk_vcodec_enc_drv.c       |  6 +++++
 .../vcodec/encoder/mtk_vcodec_enc_drv.h       |  2 ++
 3 files changed, 10 insertions(+), 20 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index f0344888f2cf..b2f911746c01 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -198,33 +198,15 @@ static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
 			       pdata->num_output_formats);
 }
 
-static int mtk_vcodec_enc_get_chip_name(struct mtk_vcodec_enc_ctx *ctx)
-{
-	struct device *dev = &ctx->dev->plat_dev->dev;
-
-	if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-enc"))
-		return 8173;
-	else if (of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-enc"))
-		return 8183;
-	else if (of_device_is_compatible(dev->of_node, "mediatek,mt8192-vcodec-enc"))
-		return 8192;
-	else if (of_device_is_compatible(dev->of_node, "mediatek,mt8195-vcodec-enc"))
-		return 8195;
-	else if (of_device_is_compatible(dev->of_node, "mediatek,mt8188-vcodec-enc"))
-		return 8188;
-	else
-		return 8173;
-}
-
 static int vidioc_venc_querycap(struct file *file, void *priv,
 				struct v4l2_capability *cap)
 {
 	struct mtk_vcodec_enc_ctx *ctx = file_to_enc_ctx(file);
+	const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
 	struct device *dev = &ctx->dev->plat_dev->dev;
-	int platform_name = mtk_vcodec_enc_get_chip_name(ctx);
 
 	strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
-	snprintf(cap->card, sizeof(cap->card), "MT%d video encoder", platform_name);
+	snprintf(cap->card, sizeof(cap->card), "MT%d video encoder", pdata->venc_model_num);
 
 	return 0;
 }
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
index 36065c8ad94f..9a94bd096397 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
@@ -381,6 +381,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 }
 
 static const struct mtk_vcodec_enc_pdata mt8173_avc_pdata = {
+	.venc_model_num = 8173,
 	.capture_formats = mtk_video_formats_capture_h264,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
 	.output_formats = mtk_video_formats_output,
@@ -391,6 +392,7 @@ static const struct mtk_vcodec_enc_pdata mt8173_avc_pdata = {
 };
 
 static const struct mtk_vcodec_enc_pdata mt8173_vp8_pdata = {
+	.venc_model_num = 8173,
 	.capture_formats = mtk_video_formats_capture_vp8,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_vp8),
 	.output_formats = mtk_video_formats_output,
@@ -401,6 +403,7 @@ static const struct mtk_vcodec_enc_pdata mt8173_vp8_pdata = {
 };
 
 static const struct mtk_vcodec_enc_pdata mt8183_pdata = {
+	.venc_model_num = 8183,
 	.uses_ext = true,
 	.capture_formats = mtk_video_formats_capture_h264,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -412,6 +415,7 @@ static const struct mtk_vcodec_enc_pdata mt8183_pdata = {
 };
 
 static const struct mtk_vcodec_enc_pdata mt8188_pdata = {
+	.venc_model_num = 8188,
 	.uses_ext = true,
 	.capture_formats = mtk_video_formats_capture_h264,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -424,6 +428,7 @@ static const struct mtk_vcodec_enc_pdata mt8188_pdata = {
 };
 
 static const struct mtk_vcodec_enc_pdata mt8192_pdata = {
+	.venc_model_num = 8192,
 	.uses_ext = true,
 	.capture_formats = mtk_video_formats_capture_h264,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -435,6 +440,7 @@ static const struct mtk_vcodec_enc_pdata mt8192_pdata = {
 };
 
 static const struct mtk_vcodec_enc_pdata mt8195_pdata = {
+	.venc_model_num = 8195,
 	.uses_ext = true,
 	.capture_formats = mtk_video_formats_capture_h264,
 	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
index 0529564027c4..769fb5009964 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
@@ -21,6 +21,7 @@
 /**
  * struct mtk_vcodec_enc_pdata - compatible data for each IC
  *
+ * @venc_model_num: encoder model number
  * @uses_ext: whether the encoder uses the extended firmware messaging format
  * @min_bitrate: minimum supported encoding bitrate
  * @max_bitrate: maximum supported encoding bitrate
@@ -33,6 +34,7 @@
  * @uses_common_fw_iface: whether the encoder uses common driver interface
  */
 struct mtk_vcodec_enc_pdata {
+	u16 venc_model_num;
 	bool uses_ext;
 	u64 min_bitrate;
 	u64 max_bitrate;
-- 
2.45.2

[PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Irui Wang]

Add support for MT8196 video encoder which uses VCP (Video Co-Processor)
for firmware management. Unlike previous platforms that use SCP/VPU, MT8196
requires VCP to load and execute the video encoding firmware, with the
encoder communicating through VCP to perform encoding operations.

Add the "mediatek,mt8196-vcodec-enc" compatible string and introduce
the "mediatek,vcp" property to reference the VCP device, which is
required for MT8196 encoder operation.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
 .../media/mediatek,vcodec-encoder.yaml        | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
index ebc615584f92..4c8acebeb9d3 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
@@ -24,6 +24,7 @@ properties:
               - mediatek,mt8188-vcodec-enc
               - mediatek,mt8192-vcodec-enc
               - mediatek,mt8195-vcodec-enc
+              - mediatek,mt8196-vcodec-enc
       - items:
           - const: mediatek,mt8186-vcodec-enc
           - const: mediatek,mt8183-vcodec-enc
@@ -58,6 +59,13 @@ properties:
     description:
       Describes point to scp.
 
+  mediatek,vcp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Reference to the VCP (Video Co-Processor) device that loads and executes
+      the video encoding firmware. The encoder communicates with the firmware
+      through VCP to perform encoding operations.
+
   power-domains:
     maxItems: 1
 
@@ -76,6 +84,17 @@ required:
   - iommus
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8196-vcodec-enc
+
+    then:
+      required:
+        - mediatek,vcp
+
   - if:
       properties:
         compatible:
-- 
2.45.2

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Krzysztof Kozlowski]

On Thu, Feb 12, 2026 at 06:01:02PM +0800, Irui Wang wrote:
> Add support for MT8196 video encoder which uses VCP (Video Co-Processor)
> for firmware management. Unlike previous platforms that use SCP/VPU, MT8196
> requires VCP to load and execute the video encoding firmware, with the
> encoder communicating through VCP to perform encoding operations.

Again, read review from v2. Subject is still wrong.

> 
> Add the "mediatek,mt8196-vcodec-enc" compatible string and introduce
> the "mediatek,vcp" property to reference the VCP device, which is
> required for MT8196 encoder operation.
> 
> Signed-off-by: Irui Wang <irui.wang@mediatek.com>
> ---
>  .../media/mediatek,vcodec-encoder.yaml        | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> index ebc615584f92..4c8acebeb9d3 100644
> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
> @@ -24,6 +24,7 @@ properties:
>                - mediatek,mt8188-vcodec-enc
>                - mediatek,mt8192-vcodec-enc
>                - mediatek,mt8195-vcodec-enc
> +              - mediatek,mt8196-vcodec-enc
>        - items:
>            - const: mediatek,mt8186-vcodec-enc
>            - const: mediatek,mt8183-vcodec-enc
> @@ -58,6 +59,13 @@ properties:
>      description:
>        Describes point to scp.
>  
> +  mediatek,vcp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      Reference to the VCP (Video Co-Processor) device that loads and executes
> +      the video encoding firmware. The encoder communicates with the firmware
> +      through VCP to perform encoding operations.
> +
>    power-domains:
>      maxItems: 1
>  
> @@ -76,6 +84,17 @@ required:
>    - iommus
>  
>  allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt8196-vcodec-enc
> +
> +    then:
> +      required:
> +        - mediatek,vcp

And here still did not implement the comment. So basically you did not
implement fully v2 and v3.

And if something was not clear, you have entire huge Mediatek company,
with huge budget and enormous resources, to help you instead of pushing
something which ignores review THIRD time.

NAK

Best regards,
Krzysztof

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Irui Wang (王瑞)]

Dear Krzysztof,

I sincerely apologize for taking up your time to review and respond to
this patch. The maintainers' review comments are very important to us,
so we will never ignore them, there must be some misunderstanding in
this process.

On Fri, 2026-02-13 at 08:52 +0100, Krzysztof Kozlowski wrote:
> On Thu, Feb 12, 2026 at 06:01:02PM +0800, Irui Wang wrote:
> > Add support for MT8196 video encoder which uses VCP (Video Co-
> > Processor)
> > for firmware management. Unlike previous platforms that use
> > SCP/VPU, MT8196
> > requires VCP to load and execute the video encoding firmware, with
> > the
> > encoder communicating through VCP to perform encoding operations.
> 
> Again, read review from v2. Subject is still wrong.

From the reviews of v2 and v3, my understanding is that the patch lacks
details, so we add more description for current modification, for 'VCP'
usage. So we are very grateful if you could provide a `correct Subject
` example for us, thanks a lot.


> > 
> > Add the "mediatek,mt8196-vcodec-enc" compatible string and
> > introduce
> > the "mediatek,vcp" property to reference the VCP device, which is
> > required for MT8196 encoder operation.
> > 
> > Signed-off-by: Irui Wang <irui.wang@mediatek.com>
> > ---
> >  .../media/mediatek,vcodec-encoder.yaml        | 19
> > +++++++++++++++++++
> >  1 file changed, 19 insertions(+)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > encoder.yaml
> > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > encoder.yaml
> > index ebc615584f92..4c8acebeb9d3 100644
> > --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > encoder.yaml
> > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > encoder.yaml
> > @@ -24,6 +24,7 @@ properties:
> >                - mediatek,mt8188-vcodec-enc
> >                - mediatek,mt8192-vcodec-enc
> >                - mediatek,mt8195-vcodec-enc
> > +              - mediatek,mt8196-vcodec-enc
> >        - items:
> >            - const: mediatek,mt8186-vcodec-enc
> >            - const: mediatek,mt8183-vcodec-enc
> > @@ -58,6 +59,13 @@ properties:
> >      description:
> >        Describes point to scp.
> >  
> > +  mediatek,vcp:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description:
> > +      Reference to the VCP (Video Co-Processor) device that loads
> > and executes
> > +      the video encoding firmware. The encoder communicates with
> > the firmware
> > +      through VCP to perform encoding operations.
> > +
> >    power-domains:
> >      maxItems: 1
> >  
> > @@ -76,6 +84,17 @@ required:
> >    - iommus
> >  
> >  allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - mediatek,mt8196-vcodec-enc
> > +
> > +    then:
> > +      required:
> > +        - mediatek,vcp
> 
> And here still did not implement the comment. So basically you did
> not
> implement fully v2 and v3.

If you are mean about the `else statement`, I left a comments and want
to get an explanation from you, if you feel that my reply is
unsatisfactory or incorrect, please let me know.

The key point is that our patch can satisfy you and get a Reviewed-by
from you.

Thanks
Best Regards
 
> 
> And if something was not clear, you have entire huge Mediatek
> company,
> with huge budget and enormous resources, to help you instead of
> pushing
> something which ignores review THIRD time.
> 
> NAK
> 
> Best regards,
> Krzysztof
> 

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Krzysztof Kozlowski]

On 13/02/2026 10:27, Irui Wang (王瑞) wrote:
> Dear Krzysztof,
> 
> I sincerely apologize for taking up your time to review and respond to
> this patch. The maintainers' review comments are very important to us,
> so we will never ignore them, there must be some misunderstanding in
> this process.
> 
> On Fri, 2026-02-13 at 08:52 +0100, Krzysztof Kozlowski wrote:
>> On Thu, Feb 12, 2026 at 06:01:02PM +0800, Irui Wang wrote:
>>> Add support for MT8196 video encoder which uses VCP (Video Co-
>>> Processor)
>>> for firmware management. Unlike previous platforms that use
>>> SCP/VPU, MT8196
>>> requires VCP to load and execute the video encoding firmware, with
>>> the
>>> encoder communicating through VCP to perform encoding operations.
>>
>> Again, read review from v2. Subject is still wrong.

Here "read review from v2"

> 
> From the reviews of v2 and v3, my understanding is that the patch lacks
> details, so we add more description for current modification, for 'VCP'
> usage. So we are very grateful if you could provide a `correct Subject
> ` example for us, thanks a lot.

You received one at v2.

> 
> 
>>>
>>> Add the "mediatek,mt8196-vcodec-enc" compatible string and
>>> introduce
>>> the "mediatek,vcp" property to reference the VCP device, which is
>>> required for MT8196 encoder operation.
>>>
>>> Signed-off-by: Irui Wang <irui.wang@mediatek.com>
>>> ---
>>>  .../media/mediatek,vcodec-encoder.yaml        | 19
>>> +++++++++++++++++++
>>>  1 file changed, 19 insertions(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> encoder.yaml
>>> b/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> encoder.yaml
>>> index ebc615584f92..4c8acebeb9d3 100644
>>> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> encoder.yaml
>>> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> encoder.yaml
>>> @@ -24,6 +24,7 @@ properties:
>>>                - mediatek,mt8188-vcodec-enc
>>>                - mediatek,mt8192-vcodec-enc
>>>                - mediatek,mt8195-vcodec-enc
>>> +              - mediatek,mt8196-vcodec-enc
>>>        - items:
>>>            - const: mediatek,mt8186-vcodec-enc
>>>            - const: mediatek,mt8183-vcodec-enc
>>> @@ -58,6 +59,13 @@ properties:
>>>      description:
>>>        Describes point to scp.
>>>  
>>> +  mediatek,vcp:
>>> +    $ref: /schemas/types.yaml#/definitions/phandle
>>> +    description:
>>> +      Reference to the VCP (Video Co-Processor) device that loads
>>> and executes
>>> +      the video encoding firmware. The encoder communicates with
>>> the firmware
>>> +      through VCP to perform encoding operations.
>>> +
>>>    power-domains:
>>>      maxItems: 1
>>>  
>>> @@ -76,6 +84,17 @@ required:
>>>    - iommus
>>>  
>>>  allOf:
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - mediatek,mt8196-vcodec-enc
>>> +
>>> +    then:
>>> +      required:
>>> +        - mediatek,vcp
>>
>> And here still did not implement the comment. So basically you did
>> not
>> implement fully v2 and v3.
> 
> If you are mean about the `else statement`, I left a comments and want
> to get an explanation from you, if you feel that my reply is
> unsatisfactory or incorrect, please let me know.
> 
> The key point is that our patch can satisfy you and get a Reviewed-by
> from you.
> 

Neither your answer, nor commit description here are actually ANSWERING
to my comment at v3. If you answer with irrelevant/unrelated comment,
the reviewer's feedback stays. OR explain please with different words
why other devices have vcp but your commit msg says they do not have vcp.

Best regards,
Krzysztof

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Irui Wang (王瑞)]

Dear Krzysztof,

Thanks for your response.

On Fri, 2026-02-13 at 10:32 +0100, Krzysztof Kozlowski wrote:
> On 13/02/2026 10:27, Irui Wang (王瑞) wrote:
> > Dear Krzysztof,
> > 
> > I sincerely apologize for taking up your time to review and respond
> > to
> > this patch. The maintainers' review comments are very important to
> > us,
> > so we will never ignore them, there must be some misunderstanding
> > in
> > this process.
> > 
> > On Fri, 2026-02-13 at 08:52 +0100, Krzysztof Kozlowski wrote:
> > > On Thu, Feb 12, 2026 at 06:01:02PM +0800, Irui Wang wrote:
> > > > Add support for MT8196 video encoder which uses VCP (Video Co-
> > > > Processor)
> > > > for firmware management. Unlike previous platforms that use
> > > > SCP/VPU, MT8196
> > > > requires VCP to load and execute the video encoding firmware,
> > > > with
> > > > the
> > > > encoder communicating through VCP to perform encoding
> > > > operations.
> > > 
> > > Again, read review from v2. Subject is still wrong.
> 
> Here "read review from v2"

I will rewrite Subject to "media: dt-bindings: mediatek,vcodec-encoder: 
Add MT8196" in next version.
> 
> > 
> > From the reviews of v2 and v3, my understanding is that the patch
> > lacks
> > details, so we add more description for current modification, for
> > 'VCP'
> > usage. So we are very grateful if you could provide a `correct
> > Subject
> > ` example for us, thanks a lot.
> 
> You received one at v2.
> 
> > 
> > 
> > > > 
> > > > Add the "mediatek,mt8196-vcodec-enc" compatible string and
> > > > introduce
> > > > the "mediatek,vcp" property to reference the VCP device, which
> > > > is
> > > > required for MT8196 encoder operation.
> > > > 
> > > > Signed-off-by: Irui Wang <irui.wang@mediatek.com>
> > > > ---
> > > >  .../media/mediatek,vcodec-encoder.yaml        | 19
> > > > +++++++++++++++++++
> > > >  1 file changed, 19 insertions(+)
> > > > 
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > encoder.yaml
> > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > encoder.yaml
> > > > index ebc615584f92..4c8acebeb9d3 100644
> > > > --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > encoder.yaml
> > > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > encoder.yaml
> > > > @@ -24,6 +24,7 @@ properties:
> > > >                - mediatek,mt8188-vcodec-enc
> > > >                - mediatek,mt8192-vcodec-enc
> > > >                - mediatek,mt8195-vcodec-enc
> > > > +              - mediatek,mt8196-vcodec-enc
> > > >        - items:
> > > >            - const: mediatek,mt8186-vcodec-enc
> > > >            - const: mediatek,mt8183-vcodec-enc
> > > > @@ -58,6 +59,13 @@ properties:
> > > >      description:
> > > >        Describes point to scp.
> > > >  
> > > > +  mediatek,vcp:
> > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > +    description:
> > > > +      Reference to the VCP (Video Co-Processor) device that
> > > > loads
> > > > and executes
> > > > +      the video encoding firmware. The encoder communicates
> > > > with
> > > > the firmware
> > > > +      through VCP to perform encoding operations.
> > > > +
> > > >    power-domains:
> > > >      maxItems: 1
> > > >  
> > > > @@ -76,6 +84,17 @@ required:
> > > >    - iommus
> > > >  
> > > >  allOf:
> > > > +  - if:
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              - mediatek,mt8196-vcodec-enc
> > > > +
> > > > +    then:
> > > > +      required:
> > > > +        - mediatek,vcp
> > > 
> > > And here still did not implement the comment. So basically you
> > > did
> > > not
> > > implement fully v2 and v3.
> > 
> > If you are mean about the `else statement`, I left a comments and
> > want
> > to get an explanation from you, if you feel that my reply is
> > unsatisfactory or incorrect, please let me know.
> > 
> > The key point is that our patch can satisfy you and get a Reviewed-
> > by
> > from you.
> > 
> 
> Neither your answer, nor commit description here are actually
> ANSWERING
> to my comment at v3. If you answer with irrelevant/unrelated comment,
> the reviewer's feedback stays. OR explain please with different words
> why other devices have vcp but your commit msg says they do not have
> vcp.

Why other devices have vcp? because I didn't write 'mediatek,vcp:false'
in else statement?


> 
> Best regards,
> Krzysztof

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Krzysztof Kozlowski]

On 13/02/2026 10:47, Irui Wang (王瑞) wrote:
>>>>
>>>> And here still did not implement the comment. So basically you
>>>> did
>>>> not
>>>> implement fully v2 and v3.
>>>
>>> If you are mean about the `else statement`, I left a comments and
>>> want
>>> to get an explanation from you, if you feel that my reply is
>>> unsatisfactory or incorrect, please let me know.
>>>
>>> The key point is that our patch can satisfy you and get a Reviewed-
>>> by
>>> from you.
>>>
>>
>> Neither your answer, nor commit description here are actually
>> ANSWERING
>> to my comment at v3. If you answer with irrelevant/unrelated comment,
>> the reviewer's feedback stays. OR explain please with different words
>> why other devices have vcp but your commit msg says they do not have
>> vcp.
> 
> Why other devices have vcp? because I didn't write 'mediatek,vcp:false'
> in else statement?

Yes

Best regards,
Krzysztof

Re: [PATCH v4 5/6] dt-bindings: media: mediatek,vcodec-encoder: Add MT8196 with VCP support

[Irui Wang (王瑞)]

On Fri, 2026-02-13 at 10:51 +0100, Krzysztof Kozlowski wrote:
> On 13/02/2026 10:47, Irui Wang (王瑞) wrote:
> > > > > 
> > > > > And here still did not implement the comment. So basically
> > > > > you
> > > > > did
> > > > > not
> > > > > implement fully v2 and v3.
> > > > 
> > > > If you are mean about the `else statement`, I left a comments
> > > > and
> > > > want
> > > > to get an explanation from you, if you feel that my reply is
> > > > unsatisfactory or incorrect, please let me know.
> > > > 
> > > > The key point is that our patch can satisfy you and get a
> > > > Reviewed-
> > > > by
> > > > from you.
> > > > 
> > > 
> > > Neither your answer, nor commit description here are actually
> > > ANSWERING
> > > to my comment at v3. If you answer with irrelevant/unrelated
> > > comment,
> > > the reviewer's feedback stays. OR explain please with different
> > > words
> > > why other devices have vcp but your commit msg says they do not
> > > have
> > > vcp.
> > 
> > Why other devices have vcp? because I didn't write
> > 'mediatek,vcp:false'
> > in else statement?
> 
> Yes
I will add else statement in next patch, many thanks for yourexplanation, and sincerely grateful for your review. 

Have a nice day.

Thanks
Best Regards

> 
> Best regards,
> Krzysztof

[PATCH v4 6/6] media: mediatek: encoder: Add MT8196 encoder compatible data

[Irui Wang]

MT8196 encoder use common firmware interface, add compatible data to
support MT8196 encoding, and need set dma mask to support 34bit.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
 .../vcodec/encoder/mtk_vcodec_enc_drv.c       | 19 +++++++++++++++++++
 .../vcodec/encoder/mtk_vcodec_enc_drv.h       |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
index 9a94bd096397..86d0ab03f151 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
@@ -20,6 +20,8 @@
 #include "mtk_vcodec_enc_pm.h"
 #include "../common/mtk_vcodec_intr.h"
 
+#define VENC_DMA_BIT_MASK 34
+
 static const struct mtk_video_fmt mtk_video_formats_output[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_NV12M,
@@ -300,6 +302,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		goto err_res;
 	}
 
+	if (dev->venc_pdata->set_dma_bit_mask)
+		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(VENC_DMA_BIT_MASK));
+
 	mutex_init(&dev->enc_mutex);
 	mutex_init(&dev->dev_mutex);
 	spin_lock_init(&dev->dev_ctx_lock);
@@ -451,6 +456,19 @@ static const struct mtk_vcodec_enc_pdata mt8195_pdata = {
 	.core_id = VENC_SYS,
 };
 
+static const struct mtk_vcodec_enc_pdata mt8196_pdata = {
+	.venc_model_num = 8196,
+	.capture_formats = mtk_video_formats_capture_h264,
+	.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
+	.output_formats = mtk_video_formats_output,
+	.num_output_formats = ARRAY_SIZE(mtk_video_formats_output),
+	.min_bitrate = 64,
+	.max_bitrate = 100000000,
+	.core_id = VENC_SYS,
+	.uses_common_fw_iface = true,
+	.set_dma_bit_mask = true,
+};
+
 static const struct of_device_id mtk_vcodec_enc_match[] = {
 	{.compatible = "mediatek,mt8173-vcodec-enc",
 			.data = &mt8173_avc_pdata},
@@ -460,6 +478,7 @@ static const struct of_device_id mtk_vcodec_enc_match[] = {
 	{.compatible = "mediatek,mt8188-vcodec-enc", .data = &mt8188_pdata},
 	{.compatible = "mediatek,mt8192-vcodec-enc", .data = &mt8192_pdata},
 	{.compatible = "mediatek,mt8195-vcodec-enc", .data = &mt8195_pdata},
+	{.compatible = "mediatek,mt8196-vcodec-enc", .data = &mt8196_pdata},
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_vcodec_enc_match);
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
index 769fb5009964..475953d39aa4 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
@@ -32,6 +32,7 @@
  * @core_id: stand for h264 or vp8 encode index
  * @uses_34bit: whether the encoder uses 34-bit iova
  * @uses_common_fw_iface: whether the encoder uses common driver interface
+ * @set_dma_bit_mask: whether the encoder need set extra DMA bit mask
  */
 struct mtk_vcodec_enc_pdata {
 	u16 venc_model_num;
@@ -45,6 +46,7 @@ struct mtk_vcodec_enc_pdata {
 	u8 core_id;
 	bool uses_34bit;
 	bool uses_common_fw_iface;
+	bool set_dma_bit_mask;
 };
 
 /*
-- 
2.45.2