[PATCH v2, 3/3] media: mediatek: vcodec: add h264 decoder driver for mt8186
Yunfei Dong
yunfei.dong at mediatek.com
Tue Apr 12 19:37:20 PDT 2022
Add h264 decode driver to support mt8186. For the architecture
is single core, need to add new interface to decode.
Signed-off-by: Yunfei Dong <yunfei.dong at mediatek.com>
---
.../vcodec/vdec/vdec_h264_req_multi_if.c | 177 +++++++++++++++++-
1 file changed, 176 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
index 757443dbbbf5..e199620b076d 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_multi_if.c
@@ -140,6 +140,9 @@ struct vdec_h264_slice_share_info {
* @vsi: vsi used for lat
* @vsi_core: vsi used for core
*
+ * @vsi_ctx: Local VSI data for this decoding context
+ * @h264_slice_param: the parameters that hardware use to decode
+ *
* @resolution_changed:resolution changed
* @realloc_mv_buf: reallocate mv buffer
* @cap_num_planes: number of capture queue plane
@@ -157,6 +160,9 @@ struct vdec_h264_slice_inst {
struct vdec_h264_slice_vsi *vsi;
struct vdec_h264_slice_vsi *vsi_core;
+ struct vdec_h264_slice_vsi vsi_ctx;
+ struct vdec_h264_slice_lat_dec_param h264_slice_param;
+
unsigned int resolution_changed;
unsigned int realloc_mv_buf;
unsigned int cap_num_planes;
@@ -208,6 +214,61 @@ static int vdec_h264_slice_fill_decode_parameters(struct vdec_h264_slice_inst *i
return 0;
}
+static int get_vdec_sig_decode_parameters(struct vdec_h264_slice_inst *inst)
+{
+ const struct v4l2_ctrl_h264_decode_params *dec_params;
+ const struct v4l2_ctrl_h264_sps *sps;
+ const struct v4l2_ctrl_h264_pps *pps;
+ const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix;
+ struct vdec_h264_slice_lat_dec_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;
+
+ dec_params =
+ mtk_vdec_h264_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS);
+ if (IS_ERR(dec_params))
+ return PTR_ERR(dec_params);
+
+ sps = mtk_vdec_h264_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SPS);
+ if (IS_ERR(sps))
+ return PTR_ERR(sps);
+
+ pps = mtk_vdec_h264_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS);
+ if (IS_ERR(pps))
+ return PTR_ERR(pps);
+
+ scaling_matrix =
+ mtk_vdec_h264_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
+ if (IS_ERR(scaling_matrix))
+ return PTR_ERR(scaling_matrix);
+
+ 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 */
+ mtk_vdec_h264_fixup_ref_list(p0_reflist, reflist_builder.num_valid);
+ mtk_vdec_h264_fixup_ref_list(b0_reflist, reflist_builder.num_valid);
+ mtk_vdec_h264_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));
+
+ return 0;
+}
+
static void vdec_h264_slice_fill_decode_reflist(struct vdec_h264_slice_inst *inst,
struct vdec_h264_slice_lat_dec_param *slice_param,
struct vdec_h264_slice_share_info *share_info)
@@ -596,6 +657,120 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
return err;
}
+static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
+ struct vdec_fb *unused, bool *res_chg)
+{
+ struct vdec_h264_slice_inst *inst = h_vdec;
+ struct vdec_vpu_inst *vpu = &inst->vpu;
+ struct mtk_video_dec_buf *src_buf_info, *dst_buf_info;
+ struct vdec_fb *fb;
+ unsigned char *buf;
+ unsigned int nal_start_idx, data[2], i;
+ u64 y_fb_dma, c_fb_dma;
+ struct mtk_vcodec_mem *mem;
+ int err;
+
+ /* 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=0x%llx",
+ inst->ctx->decoded_frame_cnt, y_fb_dma, c_fb_dma, (u64)fb);
+
+ inst->vsi_ctx.dec.bs_buf_addr = (u64)bs->dma_addr;
+ inst->vsi_ctx.dec.bs_buf_size = bs->size;
+ 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);
+ err = get_vdec_sig_decode_parameters(inst);
+ if (err)
+ goto err_free_fb_out;
+
+ buf = (unsigned char *)bs->va;
+ nal_start_idx = mtk_vdec_h264_find_start_code(buf, bs->size);
+ if (nal_start_idx < 0) {
+ err = -EINVAL;
+ goto err_free_fb_out;
+ }
+ inst->vsi_ctx.dec.nal_info = buf[nal_start_idx];
+
+ *res_chg = inst->resolution_changed;
+ if (inst->resolution_changed) {
+ mtk_vcodec_debug(inst, "- resolution changed -");
+ if (inst->realloc_mv_buf) {
+ err = vdec_h264_slice_alloc_mv_buf(inst, &inst->ctx->picinfo);
+ inst->realloc_mv_buf = false;
+ if (err)
+ goto err_free_fb_out;
+ }
+ inst->resolution_changed = false;
+
+ for (i = 0; i < H264_MAX_MV_NUM; i++) {
+ mem = &inst->mv_buf[i];
+ inst->vsi_ctx.mv_buf_dma[i] = mem->dma_addr;
+ }
+ }
+
+ memcpy_toio(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, MTK_VDEC_CORE);
+ if (err)
+ mtk_vcodec_err(inst, "decode timeout: pic_%d",
+ inst->ctx->decoded_frame_cnt);
+
+ inst->vsi->dec.timeout = !!err;
+ err = vpu_dec_end(vpu);
+ if (err)
+ goto err_free_fb_out;
+
+ memcpy_fromio(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx));
+ mtk_vcodec_debug(inst, "pic[%d] crc: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x",
+ inst->ctx->decoded_frame_cnt,
+ inst->vsi_ctx.dec.crc[0], inst->vsi_ctx.dec.crc[1],
+ inst->vsi_ctx.dec.crc[2], inst->vsi_ctx.dec.crc[3],
+ inst->vsi_ctx.dec.crc[4], inst->vsi_ctx.dec.crc[5],
+ inst->vsi_ctx.dec.crc[6], inst->vsi_ctx.dec.crc[7]);
+
+ inst->ctx->decoded_frame_cnt++;
+ return 0;
+
+err_free_fb_out:
+ mtk_vcodec_err(inst, "dec frame number: %d err: %d",
+ inst->ctx->decoded_frame_cnt, err);
+ return err;
+}
+
+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 = h_vdec;
+ int ret;
+
+ if (!h_vdec)
+ return -EINVAL;
+
+ if (inst->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_PURE_SINGLE_CORE)
+ ret = vdec_h264_slice_single_decode(h_vdec, bs, unused, res_chg);
+ else
+ ret = vdec_h264_slice_lat_decode(h_vdec, bs, unused, res_chg);
+
+ return ret;
+}
+
static int vdec_h264_slice_get_param(void *h_vdec, enum vdec_get_param_type type,
void *out)
{
@@ -620,7 +795,7 @@ static int vdec_h264_slice_get_param(void *h_vdec, enum vdec_get_param_type type
const struct vdec_common_if vdec_h264_slice_multi_if = {
.init = vdec_h264_slice_init,
- .decode = vdec_h264_slice_lat_decode,
+ .decode = vdec_h264_slice_decode,
.get_param = vdec_h264_slice_get_param,
.deinit = vdec_h264_slice_deinit,
};
--
2.18.0
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