| // 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 "../vdec_drv_if.h" |
| #include "../mtk_vcodec_util.h" |
| #include "../mtk_vcodec_dec.h" |
| #include "../mtk_vcodec_intr.h" |
| #include "../vdec_vpu_if.h" |
| #include "../vdec_drv_base.h" |
| #include "vdec_h264_req_common.h" |
| |
| /** |
| * 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[V4L2_H264_NUM_DPB_ENTRIES]; |
| }; |
| |
| /** |
| * 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 { |
| uint32_t dpb_sz; |
| uint32_t resolution_changed; |
| uint32_t realloc_mv_buf; |
| uint32_t cap_num_planes; |
| uint64_t bs_dma; |
| uint64_t y_fb_dma; |
| uint64_t c_fb_dma; |
| uint64_t 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) |
| */ |
| struct vdec_h264_vsi { |
| uint64_t pred_buf_dma; |
| uint64_t 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 |
| */ |
| 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]; |
| }; |
| |
| /* |
| * 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 = |
| mtk_vdec_h264_get_ctrl_ptr(inst->ctx, |
| V4L2_CID_STATELESS_H264_DECODE_PARAMS); |
| const struct v4l2_ctrl_h264_sps *sps = |
| mtk_vdec_h264_get_ctrl_ptr(inst->ctx, |
| V4L2_CID_STATELESS_H264_SPS); |
| const struct v4l2_ctrl_h264_pps *pps = |
| mtk_vdec_h264_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS); |
| const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix = |
| mtk_vdec_h264_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; |
| |
| mtk_vdec_h264_update_dpb(dec_params, inst->dpb); |
| |
| mtk_vdec_h264_copy_sps_params(&slice_param->sps, sps); |
| mtk_vdec_h264_copy_pps_params(&slice_param->pps, pps); |
| mtk_vdec_h264_copy_scaling_matrix(&slice_param->scaling_matrix, |
| scaling_matrix); |
| mtk_vdec_h264_copy_decode_params(&slice_param->decode_params, |
| dec_params, inst->dpb); |
| mtk_vdec_h264_fill_dpb_info(inst->ctx, &slice_param->decode_params, |
| slice_param->h264_dpb_info); |
| |
| /* 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 int allocate_predication_buf(struct vdec_h264_slice_inst *inst) |
| { |
| int err = 0; |
| |
| 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 = NULL; |
| |
| mtk_vcodec_debug_enter(inst); |
| |
| inst->vsi_ctx.pred_buf_dma = 0; |
| mem = &inst->pred_buf; |
| 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 = mtk_vdec_h264_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 = NULL; |
| |
| 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 = NULL; |
| 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 = |
| (struct vdec_h264_slice_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 *unused, bool *res_chg) |
| { |
| struct vdec_h264_slice_inst *inst = |
| (struct vdec_h264_slice_inst *)h_vdec; |
| 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; |
| int nal_start_idx = 0, err = 0; |
| uint32_t nal_type, data[2]; |
| unsigned char *buf; |
| uint64_t y_fb_dma; |
| uint64_t c_fb_dma; |
| |
| 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); |
| |
| buf = (unsigned char *)bs->va; |
| nal_start_idx = mtk_vdec_h264_find_start_code(buf, bs->size); |
| if (nal_start_idx < 0) |
| goto err_free_fb_out; |
| |
| data[0] = bs->size; |
| data[1] = buf[nal_start_idx]; |
| nal_type = NAL_TYPE(buf[nal_start_idx]); |
| mtk_vcodec_debug(inst, "\n + NALU[%d] type %d +\n", inst->num_nalu, |
| nal_type); |
| |
| 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); |
| *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; |
| |
| if (nal_type == NAL_NON_IDR_SLICE || nal_type == NAL_IDR_SLICE) { |
| /* 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] type=%d -\n", inst->num_nalu, |
| nal_type); |
| |
| inst->ctx->dev->vdec_pdata->cap_to_disp(inst->ctx, fb, 0); |
| 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 = |
| (struct vdec_h264_slice_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, |
| }; |