static int allocate_predication_buf(struct vdec_h264_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->pred_buf_dma = inst->pred_buf.dma_addr;
return 0;
}
static int alloc_mv_buf(struct vdec_h264_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);
for (i = 0; i < H264_MAX_FB_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->mv_buf_dma[i] = mem->dma_addr;
}
return 0;
}
static int h264_enc_alloc_work_buf(struct venc_h264_inst *inst)
{
int i;
int ret = 0;
struct venc_h264_vpu_buf *wb = inst->vsi->work_bufs;
mtk_vcodec_debug_enter(inst);
for (i = 0; i < VENC_H264_VPU_WORK_BUF_MAX; i++) {
/*
* This 'wb' structure is set by VPU side and shared to AP for
* buffer allocation and IO virtual addr mapping. For most of
* the buffers, AP will allocate the buffer according to 'size'
* field and store the IO virtual addr in 'iova' field. There
* are two exceptions:
* (1) RC_CODE buffer, it's pre-allocated in the VPU side, and
* save the VPU addr in the 'vpua' field. The AP will translate
* the VPU addr to the corresponding IO virtual addr and store
* in 'iova' field for reg setting in VPU side.
* (2) SKIP_FRAME buffer, it's pre-allocated in the VPU side,
* and save the VPU addr in the 'vpua' field. The AP will
* translate the VPU addr to the corresponding AP side virtual
* address and do some memcpy access to move to bitstream buffer
* assigned by v4l2 layer.
*/
inst->work_bufs[i].size = wb[i].size;
if (i == VENC_H264_VPU_WORK_BUF_SKIP_FRAME) {
inst->work_bufs[i].va = vpu_mapping_dm_addr(
inst->vpu_inst.dev, wb[i].vpua);
inst->work_bufs[i].dma_addr = 0;
} else {
ret = mtk_vcodec_mem_alloc(inst->ctx,
&inst->work_bufs[i]);
if (ret) {
mtk_vcodec_err(inst,
"cannot allocate buf %d", i);
goto err_alloc;
}
/*
* This RC_CODE is pre-allocated by VPU and saved in VPU
* addr. So we need use memcpy to copy RC_CODE from VPU
* addr into IO virtual addr in 'iova' field for reg
* setting in VPU side.
*/
if (i == VENC_H264_VPU_WORK_BUF_RC_CODE) {
void *tmp_va;
tmp_va = vpu_mapping_dm_addr(inst->vpu_inst.dev,
wb[i].vpua);
memcpy(inst->work_bufs[i].va, tmp_va,
wb[i].size);
}
}
wb[i].iova = inst->work_bufs[i].dma_addr;
mtk_vcodec_debug(inst,
"work_buf[%d] va=0x%p iova=%pad size=%zu",
i, inst->work_bufs[i].va,
&inst->work_bufs[i].dma_addr,
inst->work_bufs[i].size);
}
/* the pps_buf is used by AP side only */
inst->pps_buf.size = 128;
ret = mtk_vcodec_mem_alloc(inst->ctx, &inst->pps_buf);
if (ret) {
mtk_vcodec_err(inst, "cannot allocate pps_buf");
goto err_alloc;
}
mtk_vcodec_debug_leave(inst);
return ret;
err_alloc:
h264_enc_free_work_buf(inst);
return ret;
}