[PATCH v3 05/24] media: h264: Use v4l2_h264_reference for reflist

Hans Verkuil hverkuil at xs4all.nl
Thu Apr 21 22:42:18 PDT 2022


Hi Nicolas,

On 05/04/2022 22:44, Nicolas Dufresne wrote:
> In preparation for adding field decoding support, convert the byte arrays
> for reflist into array of struct v4l2_h264_reference. That struct will
> allow us to mark which field of the reference picture is being referenced.
> 
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne at collabora.com>
> Reviewed-by: Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>
> ---
>  .../mediatek/vcodec/vdec/vdec_h264_req_if.c   | 17 +++-

After applying this patch building the mediatek driver fails:

drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c: In function ‘get_ref_list’:
drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c:451:32: error: ‘struct v4l2_h264_reflist_builder’ has no member named ‘index’
  451 |                 ref_list[i] = b->index;
      |                                ^~
drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c: In function ‘get_vdec_decode_parameters’:
drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c:485:54: error: passing argument 2 of ‘v4l2_h264_build_p_ref_list’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  485 |         v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
      |                                                      ^~~~~~~~~~
      |                                                      |
      |                                                      u8 * {aka unsigned char *}

(dropped a lot more errors)

Ditto for drivers/media/platform/nvidia/tegra-vde/h264.c:

drivers/media/platform/nvidia/tegra-vde/h264.c: In function ‘tegra_vde_h264_setup_frames’:
drivers/media/platform/nvidia/tegra-vde/h264.c:806:57: error: passing argument 2 of ‘v4l2_h264_build_b_ref_lists’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  806 |                 v4l2_h264_build_b_ref_lists(&b, reflists.b0, reflists.b1);
      |                                                 ~~~~~~~~^~~
      |                                                         |
      |                                                         u8 * {aka unsigned char *}
In file included from drivers/media/platform/nvidia/tegra-vde/h264.c:14:
./include/media/v4l2-h264.h:66:57: note: expected ‘struct v4l2_h264_reference *’ but argument is of type ‘u8 *’ {aka ‘unsigned char *’}
   66 |                             struct v4l2_h264_reference *b0_reflist,
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
drivers/media/platform/nvidia/tegra-vde/h264.c:806:70: error: passing argument 3 of ‘v4l2_h264_build_b_ref_lists’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  806 |                 v4l2_h264_build_b_ref_lists(&b, reflists.b0, reflists.b1);
      |                                                              ~~~~~~~~^~~
      |                                                                      |
      |                                                                      u8 * {aka unsigned char *}
In file included from drivers/media/platform/nvidia/tegra-vde/h264.c:14:
./include/media/v4l2-h264.h:67:57: note: expected ‘struct v4l2_h264_reference *’ but argument is of type ‘u8 *’ {aka ‘unsigned char *’}
   67 |                             struct v4l2_h264_reference *b1_reflist);
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
drivers/media/platform/nvidia/tegra-vde/h264.c:809:56: error: passing argument 2 of ‘v4l2_h264_build_p_ref_list’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  809 |                 v4l2_h264_build_p_ref_list(&b, reflists.p);
      |                                                ~~~~~~~~^~
      |                                                        |
      |                                                        u8 * {aka unsigned char *}
In file included from drivers/media/platform/nvidia/tegra-vde/h264.c:14:
./include/media/v4l2-h264.h:83:56: note: expected ‘struct v4l2_h264_reference *’ but argument is of type ‘u8 *’ {aka ‘unsigned char *’}
   83 |                            struct v4l2_h264_reference *reflist);
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~

It looks like you didn't build the tegra-vde driver either.

Regards,

	Hans

>  drivers/media/v4l2-core/v4l2-h264.c           | 33 ++++---
>  .../staging/media/hantro/hantro_g1_h264_dec.c | 38 +++----
>  drivers/staging/media/hantro/hantro_hw.h      |  6 +-
>  .../media/hantro/rockchip_vpu2_hw_h264_dec.c  | 98 +++++++++----------
>  drivers/staging/media/rkvdec/rkvdec-h264.c    | 12 +--
>  include/media/v4l2-h264.h                     | 19 ++--
>  7 files changed, 116 insertions(+), 107 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> index 43542de11e9c..72c599e05a47 100644
> --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> @@ -442,9 +442,16 @@ static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
>  /*
>   * The firmware expects unused reflist entries to have the value 0x20.
>   */
> -static void fixup_ref_list(u8 *ref_list, size_t num_valid)
> +static void get_ref_list(u8 *ref_list, struct v4l2_h264_reflist_builder *b)
>  {
> -	memset(&ref_list[num_valid], 0x20, 32 - num_valid);
> +	u32 i;
> +
> +	/* FIXME mark the reference parity */
> +	for (i = 0; i < b->num_valid; i++)
> +		ref_list[i] = b->index;
> +
> +	for (; i < 32; i++)
> +		ref_list[i] = 0x20;
>  }
>  
>  static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
> @@ -478,9 +485,9 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
>  	v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
>  	v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
>  	/* Adapt the built lists to the firmware's expectations */
> -	fixup_ref_list(p0_reflist, reflist_builder.num_valid);
> -	fixup_ref_list(b0_reflist, reflist_builder.num_valid);
> -	fixup_ref_list(b1_reflist, reflist_builder.num_valid);
> +	get_ref_list(p0_reflist, reflist_builder);
> +	get_ref_list(b0_reflist, reflist_builder);
> +	get_ref_list(b1_reflist, reflist_builder);
>  
>  	memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
>  	       sizeof(inst->vsi_ctx.h264_slice_params));
> diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
> index ac47519a9fbe..afbfcf78efe4 100644
> --- a/drivers/media/v4l2-core/v4l2-h264.c
> +++ b/drivers/media/v4l2-core/v4l2-h264.c
> @@ -75,12 +75,12 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
>  			pic_order_count = dpb[i].top_field_order_cnt;
>  
>  		b->refs[i].pic_order_count = pic_order_count;
> -		b->unordered_reflist[b->num_valid] = i;
> +		b->unordered_reflist[b->num_valid].index = i;
>  		b->num_valid++;
>  	}
>  
>  	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
> -		b->unordered_reflist[i] = i;
> +		b->unordered_reflist[i].index = i;
>  }
>  EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
>  
> @@ -90,8 +90,8 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
>  	const struct v4l2_h264_reflist_builder *builder = data;
>  	u8 idxa, idxb;
>  
> -	idxa = *((u8 *)ptra);
> -	idxb = *((u8 *)ptrb);
> +	idxa = ((struct v4l2_h264_reference *)ptra)->index;
> +	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
>  
>  	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
>  		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
> @@ -125,8 +125,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
>  	s32 poca, pocb;
>  	u8 idxa, idxb;
>  
> -	idxa = *((u8 *)ptra);
> -	idxb = *((u8 *)ptrb);
> +	idxa = ((struct v4l2_h264_reference *)ptra)->index;
> +	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
>  
>  	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
>  		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
> @@ -170,8 +170,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
>  	s32 poca, pocb;
>  	u8 idxa, idxb;
>  
> -	idxa = *((u8 *)ptra);
> -	idxb = *((u8 *)ptrb);
> +	idxa = ((struct v4l2_h264_reference *)ptra)->index;
> +	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
>  
>  	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
>  		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
> @@ -212,8 +212,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
>   * v4l2_h264_build_p_ref_list() - Build the P reference list
>   *
>   * @builder: reference list builder context
> - * @reflist: 16-bytes array used to store the P reference list. Each entry
> - *	     is an index in the DPB
> + * @reflist: 16 sized array used to store the P reference list. Each entry
> + *	     is a v4l2_h264_reference structure
>   *
>   * This functions builds the P reference lists. This procedure is describe in
>   * section '8.2.4 Decoding process for reference picture lists construction'
> @@ -222,7 +222,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
>   */
>  void
>  v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
> -			   u8 *reflist)
> +			   struct v4l2_h264_reference *reflist)
>  {
>  	memcpy(reflist, builder->unordered_reflist,
>  	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
> @@ -235,10 +235,10 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
>   * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
>   *
>   * @builder: reference list builder context
> - * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
> - *		is an index in the DPB
> - * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
> - *		is an index in the DPB
> + * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
> + *		is a v4l2_h264_reference structure
> + * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
> + *		is a v4l2_h264_reference structure
>   *
>   * This functions builds the B0/B1 reference lists. This procedure is described
>   * in section '8.2.4 Decoding process for reference picture lists construction'
> @@ -247,7 +247,8 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
>   */
>  void
>  v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
> -			    u8 *b0_reflist, u8 *b1_reflist)
> +			    struct v4l2_h264_reference *b0_reflist,
> +			    struct v4l2_h264_reference *b1_reflist)
>  {
>  	memcpy(b0_reflist, builder->unordered_reflist,
>  	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
> diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> index f49dbfb8a843..9de7f05eff2a 100644
> --- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
> @@ -126,7 +126,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
>  
>  static void set_ref(struct hantro_ctx *ctx)
>  {
> -	const u8 *b0_reflist, *b1_reflist, *p_reflist;
> +	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
>  	struct hantro_dev *vpu = ctx->dev;
>  	int reg_num;
>  	u32 reg;
> @@ -157,12 +157,12 @@ static void set_ref(struct hantro_ctx *ctx)
>  	 */
>  	reg_num = 0;
>  	for (i = 0; i < 15; i += 3) {
> -		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i]) |
> -		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1]) |
> -		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2]) |
> -		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i]) |
> -		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1]) |
> -		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2]);
> +		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i].index) |
> +		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1].index) |
> +		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2].index) |
> +		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i].index) |
> +		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1].index) |
> +		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2].index);
>  		vdpu_write_relaxed(vpu, reg, G1_REG_BD_REF_PIC(reg_num++));
>  	}
>  
> @@ -171,12 +171,12 @@ static void set_ref(struct hantro_ctx *ctx)
>  	 * of forward and backward reference picture lists and first 4 entries
>  	 * of P forward picture list.
>  	 */
> -	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15]) |
> -	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15]) |
> -	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0]) |
> -	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1]) |
> -	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2]) |
> -	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3]);
> +	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15].index) |
> +	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15].index) |
> +	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0].index) |
> +	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1].index) |
> +	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2].index) |
> +	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3].index);
>  	vdpu_write_relaxed(vpu, reg, G1_REG_BD_P_REF_PIC);
>  
>  	/*
> @@ -185,12 +185,12 @@ static void set_ref(struct hantro_ctx *ctx)
>  	 */
>  	reg_num = 0;
>  	for (i = 4; i < HANTRO_H264_DPB_SIZE; i += 6) {
> -		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i]) |
> -		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1]) |
> -		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2]) |
> -		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3]) |
> -		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4]) |
> -		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5]);
> +		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i].index) |
> +		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1].index) |
> +		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2].index) |
> +		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3].index) |
> +		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4].index) |
> +		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5].index);
>  		vdpu_write_relaxed(vpu, reg, G1_REG_FWD_PIC(reg_num++));
>  	}
>  
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index ed018e293ba0..2bc6b8f088f5 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
>   * @b1:		B1 reflist
>   */
>  struct hantro_h264_dec_reflists {
> -	u8 p[HANTRO_H264_DPB_SIZE];
> -	u8 b0[HANTRO_H264_DPB_SIZE];
> -	u8 b1[HANTRO_H264_DPB_SIZE];
> +	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
> +	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
> +	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
>  };
>  
>  /**
> diff --git a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
> index 64a6330475eb..46c1a83bcc4e 100644
> --- a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
> +++ b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
> @@ -298,7 +298,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
>  
>  static void set_ref(struct hantro_ctx *ctx)
>  {
> -	const u8 *b0_reflist, *b1_reflist, *p_reflist;
> +	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
>  	struct hantro_dev *vpu = ctx->dev;
>  	u32 reg;
>  	int i;
> @@ -307,20 +307,20 @@ static void set_ref(struct hantro_ctx *ctx)
>  	b1_reflist = ctx->h264_dec.reflists.b1;
>  	p_reflist = ctx->h264_dec.reflists.p;
>  
> -	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9]) |
> -	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8]) |
> -	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7]) |
> -	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6]) |
> -	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5]) |
> -	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4]);
> +	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9].index) |
> +	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8].index) |
> +	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7].index) |
> +	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6].index) |
> +	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5].index) |
> +	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(74));
>  
> -	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15]) |
> -	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14]) |
> -	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13]) |
> -	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12]) |
> -	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11]) |
> -	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10]);
> +	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15].index) |
> +	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14].index) |
> +	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13].index) |
> +	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12].index) |
> +	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11].index) |
> +	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(75));
>  
>  	reg = VDPU_REG_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, 1)) |
> @@ -355,54 +355,54 @@ static void set_ref(struct hantro_ctx *ctx)
>  	      VDPU_REG_REFER14_NBR(hantro_h264_get_ref_nbr(ctx, 14));
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(83));
>  
> -	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5]) |
> -	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4]) |
> -	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3]) |
> -	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2]) |
> -	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1]) |
> -	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0]);
> +	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5].index) |
> +	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4].index) |
> +	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3].index) |
> +	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2].index) |
> +	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1].index) |
> +	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(100));
>  
> -	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11]) |
> -	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10]) |
> -	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9]) |
> -	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8]) |
> -	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7]) |
> -	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6]);
> +	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11].index) |
> +	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10].index) |
> +	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9].index) |
> +	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8].index) |
> +	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7].index) |
> +	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(101));
>  
> -	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15]) |
> -	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14]) |
> -	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13]) |
> -	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12]);
> +	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15].index) |
> +	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14].index) |
> +	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13].index) |
> +	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(102));
>  
> -	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5]) |
> -	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4]) |
> -	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3]) |
> -	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2]) |
> -	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1]) |
> -	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0]);
> +	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5].index) |
> +	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4].index) |
> +	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3].index) |
> +	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2].index) |
> +	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1].index) |
> +	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(103));
>  
> -	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11]) |
> -	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10]) |
> -	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9]) |
> -	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8]) |
> -	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7]) |
> -	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6]);
> +	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11].index) |
> +	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10].index) |
> +	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9].index) |
> +	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8].index) |
> +	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7].index) |
> +	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(104));
>  
> -	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15]) |
> -	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14]) |
> -	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13]) |
> -	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12]);
> +	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15].index) |
> +	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14].index) |
> +	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13].index) |
> +	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(105));
>  
> -	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3]) |
> -	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2]) |
> -	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1]) |
> -	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0]);
> +	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3].index) |
> +	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2].index) |
> +	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1].index) |
> +	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0].index);
>  	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(106));
>  
>  	reg = VDPU_REG_REFER_LTERM_E(ctx->h264_dec.dpb_longterm);
> diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
> index 951e19231da2..3c7f3d87fab4 100644
> --- a/drivers/staging/media/rkvdec/rkvdec-h264.c
> +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
> @@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
>  #define RKVDEC_H264_DPB_SIZE 16
>  
>  struct rkvdec_h264_reflists {
> -	u8 p[RKVDEC_H264_DPB_SIZE];
> -	u8 b0[RKVDEC_H264_DPB_SIZE];
> -	u8 b1[RKVDEC_H264_DPB_SIZE];
> +	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
> +	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
> +	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
>  	u8 num_valid;
>  };
>  
> @@ -767,13 +767,13 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
>  
>  			switch (j) {
>  			case 0:
> -				idx = h264_ctx->reflists.p[i];
> +				idx = h264_ctx->reflists.p[i].index;
>  				break;
>  			case 1:
> -				idx = h264_ctx->reflists.b0[i];
> +				idx = h264_ctx->reflists.b0[i].index;
>  				break;
>  			case 2:
> -				idx = h264_ctx->reflists.b1[i];
> +				idx = h264_ctx->reflists.b1[i].index;
>  				break;
>  			}
>  
> diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
> index 4b1c71c935e0..ef9a894e3c32 100644
> --- a/include/media/v4l2-h264.h
> +++ b/include/media/v4l2-h264.h
> @@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
>  		u16 longterm : 1;
>  	} refs[V4L2_H264_NUM_DPB_ENTRIES];
>  	s32 cur_pic_order_count;
> -	u8 unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
> +	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
>  	u8 num_valid;
>  };
>  
> @@ -51,10 +51,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
>   * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
>   *
>   * @builder: reference list builder context
> - * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
> - *		is an index in the DPB
> - * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
> - *		is an index in the DPB
> + * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
> + *		is a v4l2_h264_reference structure
> + * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
> + *		is a v4l2_h264_reference structure
>   *
>   * This functions builds the B0/B1 reference lists. This procedure is described
>   * in section '8.2.4 Decoding process for reference picture lists construction'
> @@ -63,14 +63,15 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
>   */
>  void
>  v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
> -			    u8 *b0_reflist, u8 *b1_reflist);
> +			    struct v4l2_h264_reference *b0_reflist,
> +			    struct v4l2_h264_reference *b1_reflist);
>  
>  /**
>   * v4l2_h264_build_p_ref_list() - Build the P reference list
>   *
>   * @builder: reference list builder context
> - * @reflist: 16-bytes array used to store the P reference list. Each entry
> - *	     is an index in the DPB
> + * @reflist: 16 sized array used to store the P reference list. Each entry
> + *	     is a v4l2_h264_reference structure
>   *
>   * This functions builds the P reference lists. This procedure is describe in
>   * section '8.2.4 Decoding process for reference picture lists construction'
> @@ -79,6 +80,6 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
>   */
>  void
>  v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
> -			   u8 *reflist);
> +			   struct v4l2_h264_reference *reflist);
>  
>  #endif /* _MEDIA_V4L2_H264_H */




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