1/* 2 * Copyright 2021 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26#include "rc_calc_fpu.h" 27 28#include "qp_tables.h" 29#include "amdgpu_dm/dc_fpu.h" 30 31#define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min) 32 33#define MODE_SELECT(val444, val422, val420) \ 34 (cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420)) 35 36 37#define TABLE_CASE(mode, bpc, max) case (table_hash(mode, BPC_##bpc, max)): \ 38 table = qp_table_##mode##_##bpc##bpc_##max; \ 39 table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \ 40 break 41 42static int median3(int a, int b, int c) 43{ 44 if (a > b) 45 swap(a, b); 46 if (b > c) 47 swap(b, c); 48 if (a > b) 49 swap(b, c); 50 51 return b; 52} 53 54static double dsc_roundf(double num) 55{ 56 if (num < 0.0) 57 num = num - 0.5; 58 else 59 num = num + 0.5; 60 61 return (int)(num); 62} 63 64static void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc, 65 enum max_min max_min, float bpp) 66{ 67 int mode = MODE_SELECT(444, 422, 420); 68 int sel = table_hash(mode, bpc, max_min); 69 int table_size = 0; 70 int index; 71 const struct qp_entry *table = NULL; 72 73 // alias enum 74 enum { min = DAL_MM_MIN, max = DAL_MM_MAX }; 75 switch (sel) { 76 TABLE_CASE(444, 8, max); 77 TABLE_CASE(444, 8, min); 78 TABLE_CASE(444, 10, max); 79 TABLE_CASE(444, 10, min); 80 TABLE_CASE(444, 12, max); 81 TABLE_CASE(444, 12, min); 82 TABLE_CASE(422, 8, max); 83 TABLE_CASE(422, 8, min); 84 TABLE_CASE(422, 10, max); 85 TABLE_CASE(422, 10, min); 86 TABLE_CASE(422, 12, max); 87 TABLE_CASE(422, 12, min); 88 TABLE_CASE(420, 8, max); 89 TABLE_CASE(420, 8, min); 90 TABLE_CASE(420, 10, max); 91 TABLE_CASE(420, 10, min); 92 TABLE_CASE(420, 12, max); 93 TABLE_CASE(420, 12, min); 94 } 95 96 if (!table) 97 return; 98 99 index = (bpp - table[0].bpp) * 2; 100 101 /* requested size is bigger than the table */ 102 if (index >= table_size) { 103 dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n"); 104 return; 105 } 106 107 memcpy(qps, table[index].qps, sizeof(qp_set)); 108} 109 110static void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp) 111{ 112 int *p = ofs; 113 114 if (mode == CM_444 || mode == CM_RGB) { 115 *p++ = (bpp <= 6) ? (0) : ((((bpp >= 8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0)))))); 116 *p++ = (bpp <= 6) ? (-2) : ((((bpp >= 8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0)))))); 117 *p++ = (bpp <= 6) ? (-2) : ((((bpp >= 8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 118 *p++ = (bpp <= 6) ? (-4) : ((((bpp >= 8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 119 *p++ = (bpp <= 6) ? (-6) : ((((bpp >= 8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 120 *p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0)))); 121 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0)))); 122 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0)))); 123 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0)))); 124 *p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0)))); 125 *p++ = -10; 126 *p++ = (bpp <= 6) ? (-12) : ((bpp >= 8) ? (-10) : (-12 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 127 *p++ = -12; 128 *p++ = -12; 129 *p++ = -12; 130 } else if (mode == CM_422) { 131 *p++ = (bpp <= 8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp - 8) * (8 / 2.0)))); 132 *p++ = (bpp <= 8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp - 8) * (8 / 2.0)))); 133 *p++ = (bpp <= 8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 134 *p++ = (bpp <= 8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 135 *p++ = (bpp <= 8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 136 *p++ = (bpp <= 8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 137 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 138 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp - 8) * (4 / 2.0)))); 139 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp - 8) * (2 / 2.0)))); 140 *p++ = (bpp <= 8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp - 8) * (2 / 2.0)))); 141 *p++ = -10; 142 *p++ = (bpp <= 6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp - 6) * (2.0 / 1)))); 143 *p++ = -12; 144 *p++ = -12; 145 *p++ = -12; 146 } else { 147 *p++ = (bpp <= 6) ? (2) : ((bpp >= 8) ? (10) : (2 + dsc_roundf((bpp - 6) * (8 / 2.0)))); 148 *p++ = (bpp <= 6) ? (0) : ((bpp >= 8) ? (8) : (0 + dsc_roundf((bpp - 6) * (8 / 2.0)))); 149 *p++ = (bpp <= 6) ? (0) : ((bpp >= 8) ? (6) : (0 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 150 *p++ = (bpp <= 6) ? (-2) : ((bpp >= 8) ? (4) : (-2 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 151 *p++ = (bpp <= 6) ? (-4) : ((bpp >= 8) ? (2) : (-4 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 152 *p++ = (bpp <= 6) ? (-6) : ((bpp >= 8) ? (0) : (-6 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 153 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-2) : (-8 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 154 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-4) : (-8 + dsc_roundf((bpp - 6) * (4 / 2.0)))); 155 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-6) : (-8 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 156 *p++ = (bpp <= 6) ? (-10) : ((bpp >= 8) ? (-8) : (-10 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 157 *p++ = -10; 158 *p++ = (bpp <= 4) ? (-12) : ((bpp >= 5) ? (-10) : (-12 + dsc_roundf((bpp - 4) * (2 / 1.0)))); 159 *p++ = -12; 160 *p++ = -12; 161 *p++ = -12; 162 } 163} 164 165void _do_calc_rc_params(struct rc_params *rc, 166 enum colour_mode cm, 167 enum bits_per_comp bpc, 168 u16 drm_bpp, 169 bool is_navite_422_or_420, 170 int slice_width, 171 int slice_height, 172 int minor_version) 173{ 174 float bpp; 175 float bpp_group; 176 float initial_xmit_delay_factor; 177 int padding_pixels; 178 int i; 179 180 dc_assert_fp_enabled(); 181 182 bpp = ((float)drm_bpp / 16.0); 183 /* in native_422 or native_420 modes, the bits_per_pixel is double the 184 * target bpp (the latter is what calc_rc_params expects) 185 */ 186 if (is_navite_422_or_420) 187 bpp /= 2.0; 188 189 rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 190 rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 191 192 bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0); 193 194 switch (cm) { 195 case CM_420: 196 rc->initial_fullness_offset = (bpp >= 6) ? (2048) : ((bpp <= 4) ? (6144) : ((((bpp > 4) && (bpp <= 5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp - 5) * (3584))))); 197 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group))); 198 rc->second_line_bpg_offset = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group))); 199 break; 200 case CM_422: 201 rc->initial_fullness_offset = (bpp >= 8) ? (2048) : ((bpp <= 7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584)))); 202 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group))); 203 rc->second_line_bpg_offset = 0; 204 break; 205 case CM_444: 206 case CM_RGB: 207 rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <= 8) ? (6144) : ((((bpp > 8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2))))); 208 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group))); 209 rc->second_line_bpg_offset = 0; 210 break; 211 } 212 213 initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0; 214 rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor); 215 216 if (cm == CM_422 || cm == CM_420) 217 slice_width /= 2; 218 219 padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0; 220 if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) { 221 if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1) 222 rc->initial_xmit_delay++; 223 } 224 225 rc->flatness_min_qp = ((bpc == BPC_8) ? (3) : ((bpc == BPC_10) ? (7) : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 226 rc->flatness_max_qp = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 227 rc->flatness_det_thresh = 2 << (bpc - 8); 228 229 get_qp_set(rc->qp_min, cm, bpc, DAL_MM_MIN, bpp); 230 get_qp_set(rc->qp_max, cm, bpc, DAL_MM_MAX, bpp); 231 if (cm == CM_444 && minor_version == 1) { 232 for (i = 0; i < QP_SET_SIZE; ++i) { 233 rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0; 234 rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0; 235 } 236 } 237 get_ofs_set(rc->ofs, cm, bpp); 238 239 /* fixed parameters */ 240 rc->rc_model_size = 8192; 241 rc->rc_edge_factor = 6; 242 rc->rc_tgt_offset_hi = 3; 243 rc->rc_tgt_offset_lo = 3; 244 245 rc->rc_buf_thresh[0] = 896; 246 rc->rc_buf_thresh[1] = 1792; 247 rc->rc_buf_thresh[2] = 2688; 248 rc->rc_buf_thresh[3] = 3584; 249 rc->rc_buf_thresh[4] = 4480; 250 rc->rc_buf_thresh[5] = 5376; 251 rc->rc_buf_thresh[6] = 6272; 252 rc->rc_buf_thresh[7] = 6720; 253 rc->rc_buf_thresh[8] = 7168; 254 rc->rc_buf_thresh[9] = 7616; 255 rc->rc_buf_thresh[10] = 7744; 256 rc->rc_buf_thresh[11] = 7872; 257 rc->rc_buf_thresh[12] = 8000; 258 rc->rc_buf_thresh[13] = 8064; 259} 260 261