| // SPDX-License-Identifier: GPL-2.0 |
| |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <media/v4l2-mem2mem.h> |
| #include <media/v4l2-h264.h> |
| #include <media/videobuf2-dma-contig.h> |
| |
| #include "../mtk_vcodec_util.h" |
| #include "../mtk_vcodec_dec.h" |
| #include "../mtk_vcodec_intr.h" |
| #include "../vdec_drv_base.h" |
| #include "../vdec_drv_if.h" |
| #include "../vdec_vpu_if.h" |
| |
| #define BUF_PREDICTION_SZ (64 * 4096) |
| #define MB_UNIT_LEN 16 |
| |
| /* get used parameters for sps/pps */ |
| #define GET_MTK_VDEC_FLAG(cond, flag) \ |
| { dst_param->cond = ((src_param->flags & (flag)) ? (1) : (0)); } |
| #define GET_MTK_VDEC_PARAM(param) \ |
| { dst_param->param = src_param->param; } |
| /* motion vector size (bytes) for every macro block */ |
| #define HW_MB_STORE_SZ 64 |
| |
| #define H264_MAX_FB_NUM 17 |
| #define H264_MAX_MV_NUM 32 |
| #define HDR_PARSING_BUF_SZ 1024 |
| |
| /** |
| * struct mtk_h264_dpb_info - h264 dpb information |
| * @y_dma_addr: Y bitstream physical address |
| * @c_dma_addr: CbCr bitstream physical address |
| * @reference_flag: reference picture flag (short/long term reference picture) |
| * @field: field picture flag |
| */ |
| struct mtk_h264_dpb_info { |
| dma_addr_t y_dma_addr; |
| dma_addr_t c_dma_addr; |
| int reference_flag; |
| int field; |
| }; |
| |
| /* |
| * struct mtk_h264_sps_param - parameters for sps |
| */ |
| struct mtk_h264_sps_param { |
| unsigned char chroma_format_idc; |
| unsigned char bit_depth_luma_minus8; |
| unsigned char bit_depth_chroma_minus8; |
| unsigned char log2_max_frame_num_minus4; |
| unsigned char pic_order_cnt_type; |
| unsigned char log2_max_pic_order_cnt_lsb_minus4; |
| unsigned char max_num_ref_frames; |
| unsigned char separate_colour_plane_flag; |
| unsigned short pic_width_in_mbs_minus1; |
| unsigned short pic_height_in_map_units_minus1; |
| unsigned int max_frame_nums; |
| unsigned char qpprime_y_zero_transform_bypass_flag; |
| unsigned char delta_pic_order_always_zero_flag; |
| unsigned char frame_mbs_only_flag; |
| unsigned char mb_adaptive_frame_field_flag; |
| unsigned char direct_8x8_inference_flag; |
| unsigned char reserved[3]; |
| }; |
| |
| /* |
| * struct mtk_h264_pps_param - parameters for pps |
| */ |
| struct mtk_h264_pps_param { |
| unsigned char num_ref_idx_l0_default_active_minus1; |
| unsigned char num_ref_idx_l1_default_active_minus1; |
| unsigned char weighted_bipred_idc; |
| char pic_init_qp_minus26; |
| char chroma_qp_index_offset; |
| char second_chroma_qp_index_offset; |
| unsigned char entropy_coding_mode_flag; |
| unsigned char pic_order_present_flag; |
| unsigned char deblocking_filter_control_present_flag; |
| unsigned char constrained_intra_pred_flag; |
| unsigned char weighted_pred_flag; |
| unsigned char redundant_pic_cnt_present_flag; |
| unsigned char transform_8x8_mode_flag; |
| unsigned char scaling_matrix_present_flag; |
| unsigned char reserved[2]; |
| }; |
| |
| struct slice_api_h264_scaling_matrix { |
| unsigned char scaling_list_4x4[6][16]; |
| unsigned char scaling_list_8x8[6][64]; |
| }; |
| |
| struct slice_h264_dpb_entry { |
| unsigned long long reference_ts; |
| unsigned short frame_num; |
| unsigned short pic_num; |
| /* Note that field is indicated by v4l2_buffer.field */ |
| int top_field_order_cnt; |
| int bottom_field_order_cnt; |
| unsigned int flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */ |
| }; |
| |
| /* |
| * struct slice_api_h264_decode_param - parameters for decode. |
| */ |
| struct slice_api_h264_decode_param { |
| struct slice_h264_dpb_entry dpb[16]; |
| unsigned short num_slices; |
| unsigned short nal_ref_idc; |
| unsigned char ref_pic_list_p0[32]; |
| unsigned char ref_pic_list_b0[32]; |
| unsigned char ref_pic_list_b1[32]; |
| int top_field_order_cnt; |
| int bottom_field_order_cnt; |
| unsigned int flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */ |
| }; |
| |
| /* |
| * struct mtk_h264_dec_slice_param - parameters for decode current frame |
| */ |
| struct mtk_h264_dec_slice_param { |
| struct mtk_h264_sps_param sps; |
| struct mtk_h264_pps_param pps; |
| struct slice_api_h264_scaling_matrix scaling_matrix; |
| struct slice_api_h264_decode_param decode_params; |
| struct mtk_h264_dpb_info h264_dpb_info[16]; |
| }; |
| |
| /** |
| * struct h264_fb - h264 decode frame buffer information |
| * @vdec_fb_va : virtual address of struct vdec_fb |
| * @y_fb_dma : dma address of Y frame buffer (luma) |
| * @c_fb_dma : dma address of C frame buffer (chroma) |
| * @poc : picture order count of frame buffer |
| * @reserved : for 8 bytes alignment |
| */ |
| struct h264_fb { |
| u64 vdec_fb_va; |
| u64 y_fb_dma; |
| u64 c_fb_dma; |
| s32 poc; |
| u32 reserved; |
| }; |
| |
| /** |
| * struct vdec_h264_dec_info - decode information |
| * @dpb_sz : decoding picture buffer size |
| * @resolution_changed : resoltion change happen |
| * @realloc_mv_buf : flag to notify driver to re-allocate mv buffer |
| * @cap_num_planes : number planes of capture buffer |
| * @bs_dma : Input bit-stream buffer dma address |
| * @y_fb_dma : Y frame buffer dma address |
| * @c_fb_dma : C frame buffer dma address |
| * @vdec_fb_va : VDEC frame buffer struct virtual address |
| */ |
| struct vdec_h264_dec_info { |
| u32 dpb_sz; |
| u32 resolution_changed; |
| u32 realloc_mv_buf; |
| u32 cap_num_planes; |
| u64 bs_dma; |
| u64 y_fb_dma; |
| u64 c_fb_dma; |
| u64 vdec_fb_va; |
| }; |
| |
| /** |
| * struct vdec_h264_vsi - shared memory for decode information exchange |
| * between VPU and Host. |
| * The memory is allocated by VPU then mapping to Host |
| * in vpu_dec_init() and freed in vpu_dec_deinit() |
| * by VPU. |
| * AP-W/R : AP is writer/reader on this item |
| * VPU-W/R: VPU is write/reader on this item |
| * @pred_buf_dma : HW working predication buffer dma address (AP-W, VPU-R) |
| * @mv_buf_dma : HW working motion vector buffer dma address (AP-W, VPU-R) |
| * @dec : decode information (AP-R, VPU-W) |
| * @pic : picture information (AP-R, VPU-W) |
| * @crop : crop information (AP-R, VPU-W) |
| * @h264_slice_params : the parameters that hardware use to decode |
| */ |
| struct vdec_h264_vsi { |
| u64 pred_buf_dma; |
| u64 mv_buf_dma[H264_MAX_MV_NUM]; |
| struct vdec_h264_dec_info dec; |
| struct vdec_pic_info pic; |
| struct v4l2_rect crop; |
| struct mtk_h264_dec_slice_param h264_slice_params; |
| }; |
| |
| /** |
| * struct vdec_h264_slice_inst - h264 decoder instance |
| * @num_nalu : how many nalus be decoded |
| * @ctx : point to mtk_vcodec_ctx |
| * @pred_buf : HW working predication buffer |
| * @mv_buf : HW working motion vector buffer |
| * @vpu : VPU instance |
| * @vsi_ctx : Local VSI data for this decoding context |
| * @h264_slice_param : the parameters that hardware use to decode |
| * @dpb : decoded picture buffer used to store reference buffer information |
| */ |
| struct vdec_h264_slice_inst { |
| unsigned int num_nalu; |
| struct mtk_vcodec_ctx *ctx; |
| struct mtk_vcodec_mem pred_buf; |
| struct mtk_vcodec_mem mv_buf[H264_MAX_MV_NUM]; |
| struct vdec_vpu_inst vpu; |
| struct vdec_h264_vsi vsi_ctx; |
| struct mtk_h264_dec_slice_param h264_slice_param; |
| |
| struct v4l2_h264_dpb_entry dpb[16]; |
| }; |
| |
| static void *get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int id) |
| { |
| struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id); |
| |
| return ctrl->p_cur.p; |
| } |
| |
| static void get_h264_dpb_list(struct vdec_h264_slice_inst *inst, |
| struct mtk_h264_dec_slice_param *slice_param) |
| { |
| struct vb2_queue *vq; |
| struct vb2_buffer *vb; |
| struct vb2_v4l2_buffer *vb2_v4l2; |
| u64 index; |
| |
| vq = v4l2_m2m_get_vq(inst->ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); |
| |
| for (index = 0; index < ARRAY_SIZE(slice_param->decode_params.dpb); index++) { |
| const struct slice_h264_dpb_entry *dpb; |
| int vb2_index; |
| |
| dpb = &slice_param->decode_params.dpb[index]; |
| if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) { |
| slice_param->h264_dpb_info[index].reference_flag = 0; |
| continue; |
| } |
| |
| vb2_index = vb2_find_timestamp(vq, dpb->reference_ts, 0); |
| if (vb2_index < 0) { |
| mtk_vcodec_err(inst, "Reference invalid: dpb_index(%lld) reference_ts(%lld)", |
| index, dpb->reference_ts); |
| continue; |
| } |
| /* 1 for short term reference, 2 for long term reference */ |
| if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)) |
| slice_param->h264_dpb_info[index].reference_flag = 1; |
| else |
| slice_param->h264_dpb_info[index].reference_flag = 2; |
| |
| vb = vq->bufs[vb2_index]; |
| vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf); |
| slice_param->h264_dpb_info[index].field = vb2_v4l2->field; |
| |
| slice_param->h264_dpb_info[index].y_dma_addr = |
| vb2_dma_contig_plane_dma_addr(vb, 0); |
| if (inst->ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2) { |
| slice_param->h264_dpb_info[index].c_dma_addr = |
| vb2_dma_contig_plane_dma_addr(vb, 1); |
| } |
| } |
| } |
| |
| static void get_h264_sps_parameters(struct mtk_h264_sps_param *dst_param, |
| const struct v4l2_ctrl_h264_sps *src_param) |
| { |
| GET_MTK_VDEC_PARAM(chroma_format_idc); |
| GET_MTK_VDEC_PARAM(bit_depth_luma_minus8); |
| GET_MTK_VDEC_PARAM(bit_depth_chroma_minus8); |
| GET_MTK_VDEC_PARAM(log2_max_frame_num_minus4); |
| GET_MTK_VDEC_PARAM(pic_order_cnt_type); |
| GET_MTK_VDEC_PARAM(log2_max_pic_order_cnt_lsb_minus4); |
| GET_MTK_VDEC_PARAM(max_num_ref_frames); |
| GET_MTK_VDEC_PARAM(pic_width_in_mbs_minus1); |
| GET_MTK_VDEC_PARAM(pic_height_in_map_units_minus1); |
| |
| GET_MTK_VDEC_FLAG(separate_colour_plane_flag, |
| V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE); |
| GET_MTK_VDEC_FLAG(qpprime_y_zero_transform_bypass_flag, |
| V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS); |
| GET_MTK_VDEC_FLAG(delta_pic_order_always_zero_flag, |
| V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO); |
| GET_MTK_VDEC_FLAG(frame_mbs_only_flag, |
| V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY); |
| GET_MTK_VDEC_FLAG(mb_adaptive_frame_field_flag, |
| V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD); |
| GET_MTK_VDEC_FLAG(direct_8x8_inference_flag, |
| V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE); |
| } |
| |
| static void get_h264_pps_parameters(struct mtk_h264_pps_param *dst_param, |
| const struct v4l2_ctrl_h264_pps *src_param) |
| { |
| GET_MTK_VDEC_PARAM(num_ref_idx_l0_default_active_minus1); |
| GET_MTK_VDEC_PARAM(num_ref_idx_l1_default_active_minus1); |
| GET_MTK_VDEC_PARAM(weighted_bipred_idc); |
| GET_MTK_VDEC_PARAM(pic_init_qp_minus26); |
| GET_MTK_VDEC_PARAM(chroma_qp_index_offset); |
| GET_MTK_VDEC_PARAM(second_chroma_qp_index_offset); |
| |
| GET_MTK_VDEC_FLAG(entropy_coding_mode_flag, |
| V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE); |
| GET_MTK_VDEC_FLAG(pic_order_present_flag, |
| V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT); |
| GET_MTK_VDEC_FLAG(weighted_pred_flag, |
| V4L2_H264_PPS_FLAG_WEIGHTED_PRED); |
| GET_MTK_VDEC_FLAG(deblocking_filter_control_present_flag, |
| V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT); |
| GET_MTK_VDEC_FLAG(constrained_intra_pred_flag, |
| V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED); |
| GET_MTK_VDEC_FLAG(redundant_pic_cnt_present_flag, |
| V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT); |
| GET_MTK_VDEC_FLAG(transform_8x8_mode_flag, |
| V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE); |
| GET_MTK_VDEC_FLAG(scaling_matrix_present_flag, |
| V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT); |
| } |
| |
| static void |
| get_h264_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix, |
| const struct v4l2_ctrl_h264_scaling_matrix *src_matrix) |
| { |
| memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4, |
| sizeof(dst_matrix->scaling_list_4x4)); |
| |
| memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8, |
| sizeof(dst_matrix->scaling_list_8x8)); |
| } |
| |
| static void |
| get_h264_decode_parameters(struct slice_api_h264_decode_param *dst_params, |
| const struct v4l2_ctrl_h264_decode_params *src_params, |
| const struct v4l2_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES]) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(dst_params->dpb); i++) { |
| struct slice_h264_dpb_entry *dst_entry = &dst_params->dpb[i]; |
| const struct v4l2_h264_dpb_entry *src_entry = &dpb[i]; |
| |
| dst_entry->reference_ts = src_entry->reference_ts; |
| dst_entry->frame_num = src_entry->frame_num; |
| dst_entry->pic_num = src_entry->pic_num; |
| dst_entry->top_field_order_cnt = src_entry->top_field_order_cnt; |
| dst_entry->bottom_field_order_cnt = |
| src_entry->bottom_field_order_cnt; |
| dst_entry->flags = src_entry->flags; |
| } |
| |
| /* |
| * num_slices is a leftover from the old H.264 support and is ignored |
| * by the firmware. |
| */ |
| dst_params->num_slices = 0; |
| dst_params->nal_ref_idc = src_params->nal_ref_idc; |
| dst_params->top_field_order_cnt = src_params->top_field_order_cnt; |
| dst_params->bottom_field_order_cnt = src_params->bottom_field_order_cnt; |
| dst_params->flags = src_params->flags; |
| } |
| |
| static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a, |
| const struct v4l2_h264_dpb_entry *b) |
| { |
| return a->top_field_order_cnt == b->top_field_order_cnt && |
| a->bottom_field_order_cnt == b->bottom_field_order_cnt; |
| } |
| |
| /* |
| * Move DPB entries of dec_param that refer to a frame already existing in dpb |
| * into the already existing slot in dpb, and move other entries into new slots. |
| * |
| * This function is an adaptation of the similarly-named function in |
| * hantro_h264.c. |
| */ |
| static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param, |
| struct v4l2_h264_dpb_entry *dpb) |
| { |
| DECLARE_BITMAP(new, ARRAY_SIZE(dec_param->dpb)) = { 0, }; |
| DECLARE_BITMAP(in_use, ARRAY_SIZE(dec_param->dpb)) = { 0, }; |
| DECLARE_BITMAP(used, ARRAY_SIZE(dec_param->dpb)) = { 0, }; |
| unsigned int i, j; |
| |
| /* Disable all entries by default, and mark the ones in use. */ |
| for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) { |
| if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE) |
| set_bit(i, in_use); |
| dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE; |
| } |
| |
| /* Try to match new DPB entries with existing ones by their POCs. */ |
| for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) { |
| const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i]; |
| |
| if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) |
| continue; |
| |
| /* |
| * To cut off some comparisons, iterate only on target DPB |
| * entries were already used. |
| */ |
| for_each_set_bit(j, in_use, ARRAY_SIZE(dec_param->dpb)) { |
| struct v4l2_h264_dpb_entry *cdpb; |
| |
| cdpb = &dpb[j]; |
| if (!dpb_entry_match(cdpb, ndpb)) |
| continue; |
| |
| *cdpb = *ndpb; |
| set_bit(j, used); |
| /* Don't reiterate on this one. */ |
| clear_bit(j, in_use); |
| break; |
| } |
| |
| if (j == ARRAY_SIZE(dec_param->dpb)) |
| set_bit(i, new); |
| } |
| |
| /* For entries that could not be matched, use remaining free slots. */ |
| for_each_set_bit(i, new, ARRAY_SIZE(dec_param->dpb)) { |
| const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i]; |
| struct v4l2_h264_dpb_entry *cdpb; |
| |
| /* |
| * Both arrays are of the same sizes, so there is no way |
| * we can end up with no space in target array, unless |
| * something is buggy. |
| */ |
| j = find_first_zero_bit(used, ARRAY_SIZE(dec_param->dpb)); |
| if (WARN_ON(j >= ARRAY_SIZE(dec_param->dpb))) |
| return; |
| |
| cdpb = &dpb[j]; |
| *cdpb = *ndpb; |
| set_bit(j, used); |
| } |
| } |
| |
| /* |
| * The firmware expects unused reflist entries to have the value 0x20. |
| */ |
| static void fixup_ref_list(u8 *ref_list, size_t num_valid) |
| { |
| memset(&ref_list[num_valid], 0x20, 32 - num_valid); |
| } |
| |
| static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst) |
| { |
| const struct v4l2_ctrl_h264_decode_params *dec_params = |
| get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS); |
| const struct v4l2_ctrl_h264_sps *sps = |
| get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SPS); |
| const struct v4l2_ctrl_h264_pps *pps = |
| get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS); |
| const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix = |
| get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX); |
| struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param; |
| struct v4l2_h264_reflist_builder reflist_builder; |
| u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0; |
| u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0; |
| u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1; |
| |
| update_dpb(dec_params, inst->dpb); |
| |
| get_h264_sps_parameters(&slice_param->sps, sps); |
| get_h264_pps_parameters(&slice_param->pps, pps); |
| get_h264_scaling_matrix(&slice_param->scaling_matrix, scaling_matrix); |
| get_h264_decode_parameters(&slice_param->decode_params, dec_params, |
| inst->dpb); |
| get_h264_dpb_list(inst, slice_param); |
| |
| /* Build the reference lists */ |
| v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps, |
| inst->dpb); |
| 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); |
| |
| memcpy(&inst->vsi_ctx.h264_slice_params, slice_param, |
| sizeof(inst->vsi_ctx.h264_slice_params)); |
| } |
| |
| static unsigned int get_mv_buf_size(unsigned int width, unsigned int height) |
| { |
| int unit_size = (width / MB_UNIT_LEN) * (height / MB_UNIT_LEN) + 8; |
| |
| return HW_MB_STORE_SZ * unit_size; |
| } |
| |
| static int allocate_predication_buf(struct vdec_h264_slice_inst *inst) |
| { |
| int err; |
| |
| inst->pred_buf.size = BUF_PREDICTION_SZ; |
| err = mtk_vcodec_mem_alloc(inst->ctx, &inst->pred_buf); |
| if (err) { |
| mtk_vcodec_err(inst, "failed to allocate ppl buf"); |
| return err; |
| } |
| |
| inst->vsi_ctx.pred_buf_dma = inst->pred_buf.dma_addr; |
| return 0; |
| } |
| |
| static void free_predication_buf(struct vdec_h264_slice_inst *inst) |
| { |
| struct mtk_vcodec_mem *mem = &inst->pred_buf; |
| |
| mtk_vcodec_debug_enter(inst); |
| |
| inst->vsi_ctx.pred_buf_dma = 0; |
| if (mem->va) |
| mtk_vcodec_mem_free(inst->ctx, mem); |
| } |
| |
| static int alloc_mv_buf(struct vdec_h264_slice_inst *inst, |
| struct vdec_pic_info *pic) |
| { |
| int i; |
| int err; |
| struct mtk_vcodec_mem *mem = NULL; |
| unsigned int buf_sz = get_mv_buf_size(pic->buf_w, pic->buf_h); |
| |
| mtk_v4l2_debug(3, "size = 0x%lx", buf_sz); |
| for (i = 0; i < H264_MAX_MV_NUM; i++) { |
| mem = &inst->mv_buf[i]; |
| if (mem->va) |
| mtk_vcodec_mem_free(inst->ctx, mem); |
| mem->size = buf_sz; |
| err = mtk_vcodec_mem_alloc(inst->ctx, mem); |
| if (err) { |
| mtk_vcodec_err(inst, "failed to allocate mv buf"); |
| return err; |
| } |
| inst->vsi_ctx.mv_buf_dma[i] = mem->dma_addr; |
| } |
| |
| return 0; |
| } |
| |
| static void free_mv_buf(struct vdec_h264_slice_inst *inst) |
| { |
| int i; |
| struct mtk_vcodec_mem *mem; |
| |
| for (i = 0; i < H264_MAX_MV_NUM; i++) { |
| inst->vsi_ctx.mv_buf_dma[i] = 0; |
| mem = &inst->mv_buf[i]; |
| if (mem->va) |
| mtk_vcodec_mem_free(inst->ctx, mem); |
| } |
| } |
| |
| static void get_pic_info(struct vdec_h264_slice_inst *inst, |
| struct vdec_pic_info *pic) |
| { |
| struct mtk_vcodec_ctx *ctx = inst->ctx; |
| |
| ctx->picinfo.buf_w = (ctx->picinfo.pic_w + 15) & 0xFFFFFFF0; |
| ctx->picinfo.buf_h = (ctx->picinfo.pic_h + 31) & 0xFFFFFFE0; |
| ctx->picinfo.fb_sz[0] = ctx->picinfo.buf_w * ctx->picinfo.buf_h; |
| ctx->picinfo.fb_sz[1] = ctx->picinfo.fb_sz[0] >> 1; |
| inst->vsi_ctx.dec.cap_num_planes = |
| ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes; |
| |
| *pic = ctx->picinfo; |
| mtk_vcodec_debug(inst, "pic(%d, %d), buf(%d, %d)", |
| ctx->picinfo.pic_w, ctx->picinfo.pic_h, |
| ctx->picinfo.buf_w, ctx->picinfo.buf_h); |
| mtk_vcodec_debug(inst, "Y/C(%d, %d)", ctx->picinfo.fb_sz[0], |
| ctx->picinfo.fb_sz[1]); |
| |
| if (ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w || |
| ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h) { |
| inst->vsi_ctx.dec.resolution_changed = true; |
| if (ctx->last_decoded_picinfo.buf_w != ctx->picinfo.buf_w || |
| ctx->last_decoded_picinfo.buf_h != ctx->picinfo.buf_h) |
| inst->vsi_ctx.dec.realloc_mv_buf = true; |
| |
| mtk_v4l2_debug(1, "ResChg: (%d %d) : old(%d, %d) -> new(%d, %d)", |
| inst->vsi_ctx.dec.resolution_changed, |
| inst->vsi_ctx.dec.realloc_mv_buf, |
| ctx->last_decoded_picinfo.pic_w, |
| ctx->last_decoded_picinfo.pic_h, |
| ctx->picinfo.pic_w, ctx->picinfo.pic_h); |
| } |
| } |
| |
| static void get_crop_info(struct vdec_h264_slice_inst *inst, struct v4l2_rect *cr) |
| { |
| cr->left = inst->vsi_ctx.crop.left; |
| cr->top = inst->vsi_ctx.crop.top; |
| cr->width = inst->vsi_ctx.crop.width; |
| cr->height = inst->vsi_ctx.crop.height; |
| |
| mtk_vcodec_debug(inst, "l=%d, t=%d, w=%d, h=%d", |
| cr->left, cr->top, cr->width, cr->height); |
| } |
| |
| static void get_dpb_size(struct vdec_h264_slice_inst *inst, unsigned int *dpb_sz) |
| { |
| *dpb_sz = inst->vsi_ctx.dec.dpb_sz; |
| mtk_vcodec_debug(inst, "sz=%d", *dpb_sz); |
| } |
| |
| static int vdec_h264_slice_init(struct mtk_vcodec_ctx *ctx) |
| { |
| struct vdec_h264_slice_inst *inst; |
| int err; |
| |
| inst = kzalloc(sizeof(*inst), GFP_KERNEL); |
| if (!inst) |
| return -ENOMEM; |
| |
| inst->ctx = ctx; |
| |
| inst->vpu.id = SCP_IPI_VDEC_H264; |
| inst->vpu.ctx = ctx; |
| |
| err = vpu_dec_init(&inst->vpu); |
| if (err) { |
| mtk_vcodec_err(inst, "vdec_h264 init err=%d", err); |
| goto error_free_inst; |
| } |
| |
| memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx)); |
| inst->vsi_ctx.dec.resolution_changed = true; |
| inst->vsi_ctx.dec.realloc_mv_buf = true; |
| |
| err = allocate_predication_buf(inst); |
| if (err) |
| goto error_deinit; |
| |
| mtk_vcodec_debug(inst, "struct size = %d,%d,%d,%d\n", |
| sizeof(struct mtk_h264_sps_param), |
| sizeof(struct mtk_h264_pps_param), |
| sizeof(struct mtk_h264_dec_slice_param), |
| sizeof(struct mtk_h264_dpb_info)); |
| |
| mtk_vcodec_debug(inst, "H264 Instance >> %p", inst); |
| |
| ctx->drv_handle = inst; |
| return 0; |
| |
| error_deinit: |
| vpu_dec_deinit(&inst->vpu); |
| |
| error_free_inst: |
| kfree(inst); |
| return err; |
| } |
| |
| static void vdec_h264_slice_deinit(void *h_vdec) |
| { |
| struct vdec_h264_slice_inst *inst = h_vdec; |
| |
| mtk_vcodec_debug_enter(inst); |
| |
| vpu_dec_deinit(&inst->vpu); |
| free_predication_buf(inst); |
| free_mv_buf(inst); |
| |
| kfree(inst); |
| } |
| |
| static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs, |
| struct vdec_fb *fb, 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; |
| u32 data[2]; |
| u64 y_fb_dma; |
| u64 c_fb_dma; |
| int err; |
| |
| /* bs NULL means flush decoder */ |
| if (!bs) |
| return vpu_dec_reset(vpu); |
| |
| 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->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; |
| |
| get_vdec_decode_parameters(inst); |
| data[0] = bs->size; |
| /* |
| * Reconstruct the first byte of the NAL unit, as the firmware requests |
| * that information to be passed even though it is present in the stream |
| * itself... |
| */ |
| data[1] = (dec_params->nal_ref_idc << 5) | |
| ((dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC) |
| ? 0x5 : 0x1); |
| |
| *res_chg = inst->vsi_ctx.dec.resolution_changed; |
| if (*res_chg) { |
| mtk_vcodec_debug(inst, "- resolution changed -"); |
| if (inst->vsi_ctx.dec.realloc_mv_buf) { |
| err = alloc_mv_buf(inst, &inst->ctx->picinfo); |
| inst->vsi_ctx.dec.realloc_mv_buf = false; |
| if (err) |
| goto err_free_fb_out; |
| } |
| *res_chg = false; |
| } |
| |
| memcpy(inst->vpu.vsi, &inst->vsi_ctx, sizeof(inst->vsi_ctx)); |
| err = vpu_dec_start(vpu, data, 2); |
| if (err) |
| goto err_free_fb_out; |
| |
| /* wait decoder done interrupt */ |
| err = mtk_vcodec_wait_for_done_ctx(inst->ctx, |
| MTK_INST_IRQ_RECEIVED, |
| WAIT_INTR_TIMEOUT_MS); |
| if (err) |
| goto err_free_fb_out; |
| vpu_dec_end(vpu); |
| |
| memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx)); |
| mtk_vcodec_debug(inst, "\n - NALU[%d]", inst->num_nalu); |
| return 0; |
| |
| err_free_fb_out: |
| mtk_vcodec_err(inst, "\n - NALU[%d] err=%d -\n", inst->num_nalu, err); |
| return err; |
| } |
| |
| static int vdec_h264_slice_get_param(void *h_vdec, enum vdec_get_param_type type, void *out) |
| { |
| struct vdec_h264_slice_inst *inst = h_vdec; |
| |
| switch (type) { |
| case GET_PARAM_PIC_INFO: |
| get_pic_info(inst, out); |
| break; |
| |
| case GET_PARAM_DPB_SIZE: |
| get_dpb_size(inst, out); |
| break; |
| |
| case GET_PARAM_CROP_INFO: |
| get_crop_info(inst, out); |
| break; |
| |
| default: |
| mtk_vcodec_err(inst, "invalid get parameter type=%d", type); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| const struct vdec_common_if vdec_h264_slice_if = { |
| .init = vdec_h264_slice_init, |
| .decode = vdec_h264_slice_decode, |
| .get_param = vdec_h264_slice_get_param, |
| .deinit = vdec_h264_slice_deinit, |
| }; |