Re: [PATCH] media: hantro: Make G2/HEVC use hantro_postproc_ops

From: Ezequiel Garcia
Date: Wed Dec 01 2021 - 13:21:06 EST

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Hi Benjamin,

On Thu, Nov 25, 2021 at 04:50:01PM +0100, Benjamin Gaignard wrote:
> Use the postprocessor functions introduced by Hantro G2/VP9 codec series
> and remove duplicated buffer management.
> This allow Hantro G12/HEVC to produce NV12_4L4 and NV12.
>

Can you add the fluster score for HEVC so we confirm there are no
regressions?

Also, please make sure to test with the UVG set http://ultravideo.fi/,
as well as testing that NV12_4L4 output converted via GStreamer's
videoconvert element.

Thanks,
Ezequiel

> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> ---
> .../staging/media/hantro/hantro_g2_hevc_dec.c | 25 +++---
> drivers/staging/media/hantro/hantro_hevc.c | 79 +++----------------
> drivers/staging/media/hantro/hantro_hw.h | 11 +++
> .../staging/media/hantro/hantro_postproc.c | 3 +
> drivers/staging/media/hantro/hantro_v4l2.c | 19 ++---
> 5 files changed, 41 insertions(+), 96 deletions(-)
>
> diff --git a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> index b35f36109a6f..6ef5430b18eb 100644
> --- a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> @@ -341,6 +341,8 @@ static int set_ref(struct hantro_ctx *ctx)
> const struct v4l2_hevc_dpb_entry *dpb = decode_params->dpb;
> dma_addr_t luma_addr, chroma_addr, mv_addr = 0;
> struct hantro_dev *vpu = ctx->dev;
> + struct vb2_v4l2_buffer *vb2_dst;
> + struct hantro_decoded_buffer *dst;
> size_t cr_offset = hantro_hevc_chroma_offset(sps);
> size_t mv_offset = hantro_hevc_motion_vectors_offset(sps);
> u32 max_ref_frames;
> @@ -426,10 +428,15 @@ static int set_ref(struct hantro_ctx *ctx)
> hantro_write_addr(vpu, G2_REF_MV_ADDR(i), mv_addr);
> }
>
> - luma_addr = hantro_hevc_get_ref_buf(ctx, decode_params->pic_order_cnt_val);
> + vb2_dst = hantro_get_dst_buf(ctx);
> + dst = vb2_to_hantro_decoded_buf(&vb2_dst->vb2_buf);
> + luma_addr = hantro_get_dec_buf_addr(ctx, &dst->base.vb.vb2_buf);
> if (!luma_addr)
> return -ENOMEM;
>
> + if (hantro_hevc_add_ref_buf(ctx, decode_params->pic_order_cnt_val, luma_addr))
> + return -EINVAL;
> +
> chroma_addr = luma_addr + cr_offset;
> mv_addr = luma_addr + mv_offset;
>
> @@ -456,16 +463,12 @@ static int set_ref(struct hantro_ctx *ctx)
>
> static void set_buffers(struct hantro_ctx *ctx)
> {
> - struct vb2_v4l2_buffer *src_buf, *dst_buf;
> + struct vb2_v4l2_buffer *src_buf;
> struct hantro_dev *vpu = ctx->dev;
> - const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
> - const struct v4l2_ctrl_hevc_sps *sps = ctrls->sps;
> - size_t cr_offset = hantro_hevc_chroma_offset(sps);
> - dma_addr_t src_dma, dst_dma;
> + dma_addr_t src_dma;
> u32 src_len, src_buf_len;
>
> src_buf = hantro_get_src_buf(ctx);
> - dst_buf = hantro_get_dst_buf(ctx);
>
> /* Source (stream) buffer. */
> src_dma = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
> @@ -478,11 +481,6 @@ static void set_buffers(struct hantro_ctx *ctx)
> hantro_reg_write(vpu, &g2_strm_start_offset, 0);
> hantro_reg_write(vpu, &g2_write_mvs_e, 1);
>
> - /* Destination (decoded frame) buffer. */
> - dst_dma = hantro_get_dec_buf_addr(ctx, &dst_buf->vb2_buf);
> -
> - hantro_write_addr(vpu, G2_RS_OUT_LUMA_ADDR, dst_dma);
> - hantro_write_addr(vpu, G2_RS_OUT_CHROMA_ADDR, dst_dma + cr_offset);
> hantro_write_addr(vpu, G2_TILE_SIZES_ADDR, ctx->hevc_dec.tile_sizes.dma);
> hantro_write_addr(vpu, G2_TILE_FILTER_ADDR, ctx->hevc_dec.tile_filter.dma);
> hantro_write_addr(vpu, G2_TILE_SAO_ADDR, ctx->hevc_dec.tile_sao.dma);
> @@ -575,9 +573,6 @@ int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)
> /* Don't compress buffers */
> hantro_reg_write(vpu, &g2_ref_compress_bypass, 1);
>
> - /* use NV12 as output format */
> - hantro_reg_write(vpu, &g2_out_rs_e, 1);
> -
> /* Bus width and max burst */
> hantro_reg_write(vpu, &g2_buswidth, BUS_WIDTH_128);
> hantro_reg_write(vpu, &g2_max_burst, 16);
> diff --git a/drivers/staging/media/hantro/hantro_hevc.c b/drivers/staging/media/hantro/hantro_hevc.c
> index ee03123e7704..b49a41d7ae91 100644
> --- a/drivers/staging/media/hantro/hantro_hevc.c
> +++ b/drivers/staging/media/hantro/hantro_hevc.c
> @@ -44,47 +44,6 @@ size_t hantro_hevc_motion_vectors_offset(const struct v4l2_ctrl_hevc_sps *sps)
> return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
> }
>
> -static size_t hantro_hevc_mv_size(const struct v4l2_ctrl_hevc_sps *sps)
> -{
> - u32 min_cb_log2_size_y = sps->log2_min_luma_coding_block_size_minus3 + 3;
> - u32 ctb_log2_size_y = min_cb_log2_size_y + sps->log2_diff_max_min_luma_coding_block_size;
> - u32 pic_width_in_ctbs_y = (sps->pic_width_in_luma_samples + (1 << ctb_log2_size_y) - 1)
> - >> ctb_log2_size_y;
> - u32 pic_height_in_ctbs_y = (sps->pic_height_in_luma_samples + (1 << ctb_log2_size_y) - 1)
> - >> ctb_log2_size_y;
> - size_t mv_size;
> -
> - mv_size = pic_width_in_ctbs_y * pic_height_in_ctbs_y *
> - (1 << (2 * (ctb_log2_size_y - 4))) * 16;
> -
> - vpu_debug(4, "%dx%d (CTBs) %zu MV bytes\n",
> - pic_width_in_ctbs_y, pic_height_in_ctbs_y, mv_size);
> -
> - return mv_size;
> -}
> -
> -static size_t hantro_hevc_ref_size(struct hantro_ctx *ctx)
> -{
> - const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
> - const struct v4l2_ctrl_hevc_sps *sps = ctrls->sps;
> -
> - return hantro_hevc_motion_vectors_offset(sps) + hantro_hevc_mv_size(sps);
> -}
> -
> -static void hantro_hevc_ref_free(struct hantro_ctx *ctx)
> -{
> - struct hantro_hevc_dec_hw_ctx *hevc_dec = &ctx->hevc_dec;
> - struct hantro_dev *vpu = ctx->dev;
> - int i;
> -
> - for (i = 0; i < NUM_REF_PICTURES; i++) {
> - if (hevc_dec->ref_bufs[i].cpu)
> - dma_free_coherent(vpu->dev, hevc_dec->ref_bufs[i].size,
> - hevc_dec->ref_bufs[i].cpu,
> - hevc_dec->ref_bufs[i].dma);
> - }
> -}
> -
> static void hantro_hevc_ref_init(struct hantro_ctx *ctx)
> {
> struct hantro_hevc_dec_hw_ctx *hevc_dec = &ctx->hevc_dec;
> @@ -108,37 +67,25 @@ dma_addr_t hantro_hevc_get_ref_buf(struct hantro_ctx *ctx,
> }
> }
>
> - /* Allocate a new reference buffer */
> + return 0;
> +}
> +
> +int hantro_hevc_add_ref_buf(struct hantro_ctx *ctx, int poc, dma_addr_t addr)
> +{
> + struct hantro_hevc_dec_hw_ctx *hevc_dec = &ctx->hevc_dec;
> + int i;
> +
> + /* Add a new reference buffer */
> for (i = 0; i < NUM_REF_PICTURES; i++) {
> if (hevc_dec->ref_bufs_poc[i] == UNUSED_REF) {
> - if (!hevc_dec->ref_bufs[i].cpu) {
> - struct hantro_dev *vpu = ctx->dev;
> -
> - /*
> - * Allocate the space needed for the raw data +
> - * motion vector data. Optimizations could be to
> - * allocate raw data in non coherent memory and only
> - * clear the motion vector data.
> - */
> - hevc_dec->ref_bufs[i].cpu =
> - dma_alloc_coherent(vpu->dev,
> - hantro_hevc_ref_size(ctx),
> - &hevc_dec->ref_bufs[i].dma,
> - GFP_KERNEL);
> - if (!hevc_dec->ref_bufs[i].cpu)
> - return 0;
> -
> - hevc_dec->ref_bufs[i].size = hantro_hevc_ref_size(ctx);
> - }
> hevc_dec->ref_bufs_used |= 1 << i;
> - memset(hevc_dec->ref_bufs[i].cpu, 0, hantro_hevc_ref_size(ctx));
> hevc_dec->ref_bufs_poc[i] = poc;
> -
> - return hevc_dec->ref_bufs[i].dma;
> + hevc_dec->ref_bufs[i].dma = addr;
> + return 0;
> }
> }
>
> - return 0;
> + return -EINVAL;
> }
>
> void hantro_hevc_ref_remove_unused(struct hantro_ctx *ctx)
> @@ -314,8 +261,6 @@ void hantro_hevc_dec_exit(struct hantro_ctx *ctx)
> hevc_dec->tile_bsd.cpu,
> hevc_dec->tile_bsd.dma);
> hevc_dec->tile_bsd.cpu = NULL;
> -
> - hantro_hevc_ref_free(ctx);
> }
>
> int hantro_hevc_dec_init(struct hantro_ctx *ctx)
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index dbe51303724b..7286404c32ab 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -345,6 +345,7 @@ void hantro_hevc_dec_exit(struct hantro_ctx *ctx);
> int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx);
> int hantro_hevc_dec_prepare_run(struct hantro_ctx *ctx);
> dma_addr_t hantro_hevc_get_ref_buf(struct hantro_ctx *ctx, int poc);
> +int hantro_hevc_add_ref_buf(struct hantro_ctx *ctx, int poc, dma_addr_t addr);
> void hantro_hevc_ref_remove_unused(struct hantro_ctx *ctx);
> size_t hantro_hevc_chroma_offset(const struct v4l2_ctrl_hevc_sps *sps);
> size_t hantro_hevc_motion_vectors_offset(const struct v4l2_ctrl_hevc_sps *sps);
> @@ -394,6 +395,16 @@ hantro_h264_mv_size(unsigned int width, unsigned int height)
> return 64 * MB_WIDTH(width) * MB_WIDTH(height) + 32;
> }
>
> +static inline size_t
> +hantro_hevc_mv_size(unsigned int width, unsigned int height)
> +{
> + /*
> + * A CTB can be 64x64, 32x32 or 16x16.
> + * Allocated memory for the "worse" case: 16x16
> + */
> + return width * height / 16;
> +}
> +
> int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
> int rockchip_vpu2_mpeg2_dec_run(struct hantro_ctx *ctx);
> void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
> diff --git a/drivers/staging/media/hantro/hantro_postproc.c b/drivers/staging/media/hantro/hantro_postproc.c
> index a7774ad4c445..248abe5423f0 100644
> --- a/drivers/staging/media/hantro/hantro_postproc.c
> +++ b/drivers/staging/media/hantro/hantro_postproc.c
> @@ -146,6 +146,9 @@ int hantro_postproc_alloc(struct hantro_ctx *ctx)
> else if (ctx->vpu_src_fmt->fourcc == V4L2_PIX_FMT_VP9_FRAME)
> buf_size += hantro_vp9_mv_size(ctx->dst_fmt.width,
> ctx->dst_fmt.height);
> + else if (ctx->vpu_src_fmt->fourcc == V4L2_PIX_FMT_HEVC_SLICE)
> + buf_size += hantro_hevc_mv_size(ctx->dst_fmt.width,
> + ctx->dst_fmt.height);
>
> for (i = 0; i < num_buffers; ++i) {
> struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
> diff --git a/drivers/staging/media/hantro/hantro_v4l2.c b/drivers/staging/media/hantro/hantro_v4l2.c
> index e4b0645ba6fc..e1fe37afe576 100644
> --- a/drivers/staging/media/hantro/hantro_v4l2.c
> +++ b/drivers/staging/media/hantro/hantro_v4l2.c
> @@ -150,20 +150,6 @@ static int vidioc_enum_fmt(struct file *file, void *priv,
> unsigned int num_fmts, i, j = 0;
> bool skip_mode_none;
>
> - /*
> - * The HEVC decoder on the G2 core needs a little quirk to offer NV12
> - * only on the capture side. Once the post-processor logic is used,
> - * we will be able to expose NV12_4L4 and NV12 as the other cases,
> - * and therefore remove this quirk.
> - */
> - if (capture && ctx->vpu_src_fmt->fourcc == V4L2_PIX_FMT_HEVC_SLICE) {
> - if (f->index == 0) {
> - f->pixelformat = V4L2_PIX_FMT_NV12;
> - return 0;
> - }
> - return -EINVAL;
> - }
> -
> /*
> * When dealing with an encoder:
> * - on the capture side we want to filter out all MODE_NONE formats.
> @@ -304,6 +290,11 @@ static int hantro_try_fmt(const struct hantro_ctx *ctx,
> pix_mp->plane_fmt[0].sizeimage +=
> hantro_vp9_mv_size(pix_mp->width,
> pix_mp->height);
> + else if (ctx->vpu_src_fmt->fourcc == V4L2_PIX_FMT_HEVC_SLICE &&
> + !hantro_needs_postproc(ctx, fmt))
> + pix_mp->plane_fmt[0].sizeimage +=
> + hantro_hevc_mv_size(pix_mp->width,
> + pix_mp->height);
> } else if (!pix_mp->plane_fmt[0].sizeimage) {
> /*
> * For coded formats the application can specify
> --
> 2.30.2
>

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