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Subject[PATCH v1, 06/12] media: mtk-vcodec: Refactor get and put capture buffer flow
Date
From: Yunfei Dong <yunfei.dong@mediatek.corp-partner.google.com>

For lat and core decode in parallel, need to get capture buffer
when core start to decode and put put capture buffer to display
list when core decode done.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
.../mtk-vcodec/mtk_vcodec_dec_stateless.c | 122 ++++++++++++------
.../platform/mtk-vcodec/mtk_vcodec_drv.h | 5 +-
.../mtk-vcodec/vdec/vdec_h264_req_if.c | 16 ++-
3 files changed, 103 insertions(+), 40 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
index 0d19b0f67fd6..f3036c3f223b 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
@@ -108,38 +108,89 @@ static const struct mtk_codec_framesizes mtk_vdec_framesizes[] = {

#define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_vdec_framesizes)

-static void mtk_vdec_stateless_set_dst_payload(struct mtk_vcodec_ctx *ctx,
- struct vdec_fb *fb)
+static void mtk_vdec_stateless_out_to_done(struct mtk_vcodec_ctx *ctx,
+ struct mtk_vcodec_mem *bs, int error)
{
- struct mtk_video_dec_buf *vdec_frame_buf =
- container_of(fb, struct mtk_video_dec_buf, frame_buffer);
- struct vb2_v4l2_buffer *vb = &vdec_frame_buf->m2m_buf.vb;
- unsigned int cap_y_size = ctx->q_data[MTK_Q_DATA_DST].sizeimage[0];
+ struct mtk_video_dec_buf *out_buf;
+ struct vb2_v4l2_buffer *vb;

- vb2_set_plane_payload(&vb->vb2_buf, 0, cap_y_size);
- if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2) {
- unsigned int cap_c_size =
- ctx->q_data[MTK_Q_DATA_DST].sizeimage[1];
+ if (!bs) {
+ mtk_v4l2_err("Free bitstream buffer fail.");
+ return;
+ }
+ out_buf = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
+ vb = &out_buf->m2m_buf.vb;
+
+ mtk_v4l2_debug(2,
+ "Free bitsteam buffer id = %d to done_list",
+ vb->vb2_buf.index);
+
+ v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ if (error) {
+ v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
+ if (error == -EIO)
+ out_buf->error = true;
+ } else {
+ v4l2_m2m_buf_done(vb, VB2_BUF_STATE_DONE);
+ }
+}

- vb2_set_plane_payload(&vb->vb2_buf, 1, cap_c_size);
+static void mtk_vdec_stateless_cap_to_disp(struct mtk_vcodec_ctx *ctx,
+ struct vdec_fb *fb, int error)
+{
+ struct mtk_video_dec_buf *vdec_frame_buf;
+ struct vb2_v4l2_buffer *vb;
+ unsigned int cap_y_size, cap_c_size;
+
+ if (!fb) {
+ mtk_v4l2_err("Free frame buffer fail.");
+ return;
}
+ vdec_frame_buf = container_of(fb, struct mtk_video_dec_buf,
+ frame_buffer);
+ vb = &vdec_frame_buf->m2m_buf.vb;
+
+ cap_y_size = ctx->q_data[MTK_Q_DATA_DST].sizeimage[0];
+ cap_c_size = ctx->q_data[MTK_Q_DATA_DST].sizeimage[1];
+
+ v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+
+ vb2_set_plane_payload(&vb->vb2_buf, 0, cap_y_size);
+ if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2)
+ vb2_set_plane_payload(&vb->vb2_buf, 1, cap_c_size);
+
+ mtk_v4l2_debug(2,
+ "Free frame buffer id = %d to done_list",
+ vb->vb2_buf.index);
+ if (error)
+ v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
+ else
+ v4l2_m2m_buf_done(vb, VB2_BUF_STATE_DONE);
}

-static struct vdec_fb *vdec_get_cap_buffer(struct mtk_vcodec_ctx *ctx,
- struct vb2_v4l2_buffer *vb2_v4l2)
+static struct vdec_fb *vdec_get_cap_buffer(struct mtk_vcodec_ctx *ctx)
{
- struct mtk_video_dec_buf *framebuf =
- container_of(vb2_v4l2, struct mtk_video_dec_buf, m2m_buf.vb);
- struct vdec_fb *pfb = &framebuf->frame_buffer;
- struct vb2_buffer *dst_buf = &vb2_v4l2->vb2_buf;
+ struct mtk_video_dec_buf *framebuf;
+ struct vb2_v4l2_buffer *vb2_v4l2;
+ struct vb2_buffer *dst_buf;
+ struct vdec_fb *pfb;
+
+ vb2_v4l2 = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ if (!vb2_v4l2) {
+ mtk_v4l2_debug(1, "[%d] dst_buf empty!!", ctx->id);
+ return NULL;
+ }
+
+ dst_buf = &vb2_v4l2->vb2_buf;
+ framebuf = container_of(vb2_v4l2, struct mtk_video_dec_buf, m2m_buf.vb);

pfb = &framebuf->frame_buffer;
- pfb->base_y.va = NULL;
+ pfb->base_y.va = vb2_plane_vaddr(dst_buf, 0);
pfb->base_y.dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
pfb->base_y.size = ctx->q_data[MTK_Q_DATA_DST].sizeimage[0];

if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2) {
- pfb->base_c.va = NULL;
+ pfb->base_c.va = vb2_plane_vaddr(dst_buf, 1);
pfb->base_c.dma_addr =
vb2_dma_contig_plane_dma_addr(dst_buf, 1);
pfb->base_c.size = ctx->q_data[MTK_Q_DATA_DST].sizeimage[1];
@@ -163,12 +214,11 @@ static void mtk_vdec_worker(struct work_struct *work)
struct mtk_vcodec_ctx *ctx =
container_of(work, struct mtk_vcodec_ctx, decode_work);
struct mtk_vcodec_dev *dev = ctx->dev;
- struct vb2_v4l2_buffer *vb2_v4l2_src, *vb2_v4l2_dst;
+ struct vb2_v4l2_buffer *vb2_v4l2_src;
struct vb2_buffer *vb2_src;
struct mtk_vcodec_mem *bs_src;
struct mtk_video_dec_buf *dec_buf_src;
struct media_request *src_buf_req;
- struct vdec_fb *dst_buf;
bool res_chg = false;
int ret;

@@ -179,13 +229,6 @@ static void mtk_vdec_worker(struct work_struct *work)
return;
}

- vb2_v4l2_dst = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
- if (!vb2_v4l2_dst) {
- v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
- mtk_v4l2_debug(1, "[%d] no available destination buffer", ctx->id);
- return;
- }
-
vb2_src = &vb2_v4l2_src->vb2_buf;
dec_buf_src = container_of(vb2_v4l2_src, struct mtk_video_dec_buf,
m2m_buf.vb);
@@ -194,9 +237,15 @@ static void mtk_vdec_worker(struct work_struct *work)
mtk_v4l2_debug(3, "[%d] (%d) id=%d, vb=%p", ctx->id,
vb2_src->vb2_queue->type, vb2_src->index, vb2_src);

- bs_src->va = NULL;
+ bs_src->va = vb2_plane_vaddr(vb2_src, 0);
bs_src->dma_addr = vb2_dma_contig_plane_dma_addr(vb2_src, 0);
bs_src->size = (size_t)vb2_src->planes[0].bytesused;
+ if (!bs_src->va) {
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+ mtk_v4l2_err("[%d] id=%d source buffer is NULL", ctx->id,
+ vb2_src->index);
+ return;
+ }

mtk_v4l2_debug(3, "[%d] Bitstream VA=%p DMA=%pad Size=%zx vb=%p",
ctx->id, bs_src->va, &bs_src->dma_addr, bs_src->size, vb2_src);
@@ -207,9 +256,7 @@ static void mtk_vdec_worker(struct work_struct *work)
else
mtk_v4l2_err("vb2 buffer media request is NULL");

- dst_buf = vdec_get_cap_buffer(ctx, vb2_v4l2_dst);
- v4l2_m2m_buf_copy_metadata(vb2_v4l2_src, vb2_v4l2_dst, true);
- ret = vdec_if_decode(ctx, bs_src, dst_buf, &res_chg);
+ ret = vdec_if_decode(ctx, bs_src, NULL, &res_chg);
if (ret) {
mtk_v4l2_err(" <===[%d], src_buf[%d] sz=0x%zx pts=%llu vdec_if_decode() ret=%d res_chg=%d===>",
ctx->id, vb2_src->index, bs_src->size,
@@ -221,12 +268,9 @@ static void mtk_vdec_worker(struct work_struct *work)
}
}

- mtk_vdec_stateless_set_dst_payload(ctx, dst_buf);
-
- v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx,
- ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
-
+ mtk_vdec_stateless_out_to_done(ctx, bs_src, ret);
v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl);
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
}

static void vb2ops_vdec_stateless_buf_queue(struct vb2_buffer *vb)
@@ -359,6 +403,8 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata = {
.uses_stateless_api = true,
.worker = mtk_vdec_worker,
.flush_decoder = mtk_vdec_flush_decoder,
+ .cap_to_disp = mtk_vdec_stateless_cap_to_disp,
+ .get_cap_buffer = vdec_get_cap_buffer,
.is_subdev_supported = false,
.hw_arch = MTK_VDEC_PURE_SINGLE_CORE,
};
@@ -377,6 +423,8 @@ const struct mtk_vcodec_dec_pdata mtk_lat_sig_core_pdata = {
.uses_stateless_api = true,
.worker = mtk_vdec_worker,
.flush_decoder = mtk_vdec_flush_decoder,
+ .cap_to_disp = mtk_vdec_stateless_cap_to_disp,
+ .get_cap_buffer = vdec_get_cap_buffer,
.is_subdev_supported = true,
.hw_arch = MTK_VDEC_LAT_SINGLE_CORE,
};
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 1938b94eb147..b9c6649da1b1 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -362,7 +362,8 @@ enum mtk_vdec_hw_arch {
* @ctrls_setup: init vcodec dec ctrls
* @worker: worker to start a decode job
* @flush_decoder: function that flushes the decoder
- *
+ * @get_cap_buffer: get capture buffer from capture queue
+ * @cap_to_disp: put capture buffer to disp list
* @vdec_vb2_ops: struct vb2_ops
*
* @vdec_formats: supported video decoder formats
@@ -384,6 +385,8 @@ struct mtk_vcodec_dec_pdata {
int (*ctrls_setup)(struct mtk_vcodec_ctx *ctx);
void (*worker)(struct work_struct *work);
int (*flush_decoder)(struct mtk_vcodec_ctx *ctx);
+ struct vdec_fb *(*get_cap_buffer)(struct mtk_vcodec_ctx *ctx);
+ void (*cap_to_disp)(struct mtk_vcodec_ctx *ctx, struct vdec_fb *fb, int error);

struct vb2_ops *vdec_vb2_ops;

diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
index d402fc4bda69..870676c2065e 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
@@ -670,32 +670,42 @@ static void vdec_h264_slice_deinit(void *h_vdec)
}

static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
- struct vdec_fb *fb, bool *res_chg)
+ struct vdec_fb *unused, bool *res_chg)
{
struct vdec_h264_slice_inst *inst = h_vdec;
const struct v4l2_ctrl_h264_decode_params *dec_params =
get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS);
struct vdec_vpu_inst *vpu = &inst->vpu;
+ struct mtk_video_dec_buf *src_buf_info;
+ struct mtk_video_dec_buf *dst_buf_info;
+ struct vdec_fb *fb;
u32 data[2];
u64 y_fb_dma;
u64 c_fb_dma;
int err;

+ inst->num_nalu++;
/* bs NULL means flush decoder */
if (!bs)
return vpu_dec_reset(vpu);

+ fb = inst->ctx->dev->vdec_pdata->get_cap_buffer(inst->ctx);
+ src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
+ dst_buf_info = container_of(fb, struct mtk_video_dec_buf, frame_buffer);
+
y_fb_dma = fb ? (u64)fb->base_y.dma_addr : 0;
c_fb_dma = fb ? (u64)fb->base_c.dma_addr : 0;

mtk_vcodec_debug(inst, "+ [%d] FB y_dma=%llx c_dma=%llx va=%p",
- ++inst->num_nalu, y_fb_dma, c_fb_dma, fb);
+ inst->num_nalu, y_fb_dma, c_fb_dma, fb);

inst->vsi_ctx.dec.bs_dma = (uint64_t)bs->dma_addr;
inst->vsi_ctx.dec.y_fb_dma = y_fb_dma;
inst->vsi_ctx.dec.c_fb_dma = c_fb_dma;
inst->vsi_ctx.dec.vdec_fb_va = (u64)(uintptr_t)fb;

+ v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb,
+ &dst_buf_info->m2m_buf.vb, true);
get_vdec_decode_parameters(inst);
data[0] = bs->size;
/*
@@ -734,6 +744,8 @@ static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,

memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx));
mtk_vcodec_debug(inst, "\n - NALU[%d]", inst->num_nalu);
+
+ inst->ctx->dev->vdec_pdata->cap_to_disp(inst->ctx, fb, 0);
return 0;

err_free_fb_out:
--
2.25.1
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