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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | // SPDX-License-Identifier: GPL-2.0 /* * Hantro VPU codec driver * * Copyright (C) 2018 Rockchip Electronics Co., Ltd. */ #include "hantro.h" /* * probs table with packed */ struct vp8_prob_tbl_packed { u8 prob_mb_skip_false; u8 prob_intra; u8 prob_ref_last; u8 prob_ref_golden; u8 prob_segment[3]; u8 padding0; u8 prob_luma_16x16_pred_mode[4]; u8 prob_chroma_pred_mode[3]; u8 padding1; /* mv prob */ u8 prob_mv_context[2][V4L2_VP8_MV_PROB_CNT]; u8 padding2[2]; /* coeff probs */ u8 prob_coeffs[4][8][3][V4L2_VP8_COEFF_PROB_CNT]; u8 padding3[96]; }; /* * filter taps taken to 7-bit precision, * reference RFC6386#Page-16, filters[8][6] */ const u32 hantro_vp8_dec_mc_filter[8][6] = { { 0, 0, 128, 0, 0, 0 }, { 0, -6, 123, 12, -1, 0 }, { 2, -11, 108, 36, -8, 1 }, { 0, -9, 93, 50, -6, 0 }, { 3, -16, 77, 77, -16, 3 }, { 0, -6, 50, 93, -9, 0 }, { 1, -8, 36, 108, -11, 2 }, { 0, -1, 12, 123, -6, 0 } }; void hantro_vp8_prob_update(struct hantro_ctx *ctx, const struct v4l2_ctrl_vp8_frame *hdr) { const struct v4l2_vp8_entropy *entropy = &hdr->entropy; u32 i, j, k; u8 *dst; /* first probs */ dst = ctx->vp8_dec.prob_tbl.cpu; dst[0] = hdr->prob_skip_false; dst[1] = hdr->prob_intra; dst[2] = hdr->prob_last; dst[3] = hdr->prob_gf; dst[4] = hdr->segment.segment_probs[0]; dst[5] = hdr->segment.segment_probs[1]; dst[6] = hdr->segment.segment_probs[2]; dst[7] = 0; dst += 8; dst[0] = entropy->y_mode_probs[0]; dst[1] = entropy->y_mode_probs[1]; dst[2] = entropy->y_mode_probs[2]; dst[3] = entropy->y_mode_probs[3]; dst[4] = entropy->uv_mode_probs[0]; dst[5] = entropy->uv_mode_probs[1]; dst[6] = entropy->uv_mode_probs[2]; dst[7] = 0; /*unused */ /* mv probs */ dst += 8; dst[0] = entropy->mv_probs[0][0]; /* is short */ dst[1] = entropy->mv_probs[1][0]; dst[2] = entropy->mv_probs[0][1]; /* sign */ dst[3] = entropy->mv_probs[1][1]; dst[4] = entropy->mv_probs[0][8 + 9]; dst[5] = entropy->mv_probs[0][9 + 9]; dst[6] = entropy->mv_probs[1][8 + 9]; dst[7] = entropy->mv_probs[1][9 + 9]; dst += 8; for (i = 0; i < 2; ++i) { for (j = 0; j < 8; j += 4) { dst[0] = entropy->mv_probs[i][j + 9 + 0]; dst[1] = entropy->mv_probs[i][j + 9 + 1]; dst[2] = entropy->mv_probs[i][j + 9 + 2]; dst[3] = entropy->mv_probs[i][j + 9 + 3]; dst += 4; } } for (i = 0; i < 2; ++i) { dst[0] = entropy->mv_probs[i][0 + 2]; dst[1] = entropy->mv_probs[i][1 + 2]; dst[2] = entropy->mv_probs[i][2 + 2]; dst[3] = entropy->mv_probs[i][3 + 2]; dst[4] = entropy->mv_probs[i][4 + 2]; dst[5] = entropy->mv_probs[i][5 + 2]; dst[6] = entropy->mv_probs[i][6 + 2]; dst[7] = 0; /*unused */ dst += 8; } /* coeff probs (header part) */ dst = ctx->vp8_dec.prob_tbl.cpu; dst += (8 * 7); for (i = 0; i < 4; ++i) { for (j = 0; j < 8; ++j) { for (k = 0; k < 3; ++k) { dst[0] = entropy->coeff_probs[i][j][k][0]; dst[1] = entropy->coeff_probs[i][j][k][1]; dst[2] = entropy->coeff_probs[i][j][k][2]; dst[3] = entropy->coeff_probs[i][j][k][3]; dst += 4; } } } /* coeff probs (footer part) */ dst = ctx->vp8_dec.prob_tbl.cpu; dst += (8 * 55); for (i = 0; i < 4; ++i) { for (j = 0; j < 8; ++j) { for (k = 0; k < 3; ++k) { dst[0] = entropy->coeff_probs[i][j][k][4]; dst[1] = entropy->coeff_probs[i][j][k][5]; dst[2] = entropy->coeff_probs[i][j][k][6]; dst[3] = entropy->coeff_probs[i][j][k][7]; dst[4] = entropy->coeff_probs[i][j][k][8]; dst[5] = entropy->coeff_probs[i][j][k][9]; dst[6] = entropy->coeff_probs[i][j][k][10]; dst[7] = 0; /*unused */ dst += 8; } } } } int hantro_vp8_dec_init(struct hantro_ctx *ctx) { struct hantro_dev *vpu = ctx->dev; struct hantro_aux_buf *aux_buf; unsigned int mb_width, mb_height; size_t segment_map_size; int ret; /* segment map table size calculation */ mb_width = DIV_ROUND_UP(ctx->dst_fmt.width, 16); mb_height = DIV_ROUND_UP(ctx->dst_fmt.height, 16); segment_map_size = round_up(DIV_ROUND_UP(mb_width * mb_height, 4), 64); /* * In context init the dma buffer for segment map must be allocated. * And the data in segment map buffer must be set to all zero. */ aux_buf = &ctx->vp8_dec.segment_map; aux_buf->size = segment_map_size; aux_buf->cpu = dma_alloc_coherent(vpu->dev, aux_buf->size, &aux_buf->dma, GFP_KERNEL); if (!aux_buf->cpu) return -ENOMEM; /* * Allocate probability table buffer, * total 1208 bytes, 4K page is far enough. */ aux_buf = &ctx->vp8_dec.prob_tbl; aux_buf->size = sizeof(struct vp8_prob_tbl_packed); aux_buf->cpu = dma_alloc_coherent(vpu->dev, aux_buf->size, &aux_buf->dma, GFP_KERNEL); if (!aux_buf->cpu) { ret = -ENOMEM; goto err_free_seg_map; } return 0; err_free_seg_map: dma_free_coherent(vpu->dev, ctx->vp8_dec.segment_map.size, ctx->vp8_dec.segment_map.cpu, ctx->vp8_dec.segment_map.dma); return ret; } void hantro_vp8_dec_exit(struct hantro_ctx *ctx) { struct hantro_vp8_dec_hw_ctx *vp8_dec = &ctx->vp8_dec; struct hantro_dev *vpu = ctx->dev; dma_free_coherent(vpu->dev, vp8_dec->segment_map.size, vp8_dec->segment_map.cpu, vp8_dec->segment_map.dma); dma_free_coherent(vpu->dev, vp8_dec->prob_tbl.size, vp8_dec->prob_tbl.cpu, vp8_dec->prob_tbl.dma); } |