1 /* 2 * Copyright 2016 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 27 #include "dcn20_hubbub.h" 28 #include "reg_helper.h" 29 #include "clk_mgr.h" 30 31 #define REG(reg)\ 32 hubbub1->regs->reg 33 34 #define CTX \ 35 hubbub1->base.ctx 36 37 #undef FN 38 #define FN(reg_name, field_name) \ 39 hubbub1->shifts->field_name, hubbub1->masks->field_name 40 41 #define REG(reg)\ 42 hubbub1->regs->reg 43 44 #define CTX \ 45 hubbub1->base.ctx 46 47 #undef FN 48 #define FN(reg_name, field_name) \ 49 hubbub1->shifts->field_name, hubbub1->masks->field_name 50 51 #ifdef NUM_VMID 52 #undef NUM_VMID 53 #endif 54 #define NUM_VMID 16 55 56 bool hubbub2_dcc_support_swizzle( 57 enum swizzle_mode_values swizzle, 58 unsigned int bytes_per_element, 59 enum segment_order *segment_order_horz, 60 enum segment_order *segment_order_vert) 61 { 62 bool standard_swizzle = false; 63 bool display_swizzle = false; 64 bool render_swizzle = false; 65 66 switch (swizzle) { 67 case DC_SW_4KB_S: 68 case DC_SW_64KB_S: 69 case DC_SW_VAR_S: 70 case DC_SW_4KB_S_X: 71 case DC_SW_64KB_S_X: 72 case DC_SW_VAR_S_X: 73 standard_swizzle = true; 74 break; 75 case DC_SW_64KB_R_X: 76 render_swizzle = true; 77 break; 78 case DC_SW_4KB_D: 79 case DC_SW_64KB_D: 80 case DC_SW_VAR_D: 81 case DC_SW_4KB_D_X: 82 case DC_SW_64KB_D_X: 83 case DC_SW_VAR_D_X: 84 display_swizzle = true; 85 break; 86 default: 87 break; 88 } 89 90 if (standard_swizzle) { 91 if (bytes_per_element == 1) { 92 *segment_order_horz = segment_order__contiguous; 93 *segment_order_vert = segment_order__na; 94 return true; 95 } 96 if (bytes_per_element == 2) { 97 *segment_order_horz = segment_order__non_contiguous; 98 *segment_order_vert = segment_order__contiguous; 99 return true; 100 } 101 if (bytes_per_element == 4) { 102 *segment_order_horz = segment_order__non_contiguous; 103 *segment_order_vert = segment_order__contiguous; 104 return true; 105 } 106 if (bytes_per_element == 8) { 107 *segment_order_horz = segment_order__na; 108 *segment_order_vert = segment_order__contiguous; 109 return true; 110 } 111 } 112 if (render_swizzle) { 113 if (bytes_per_element == 2) { 114 *segment_order_horz = segment_order__contiguous; 115 *segment_order_vert = segment_order__contiguous; 116 return true; 117 } 118 if (bytes_per_element == 4) { 119 *segment_order_horz = segment_order__non_contiguous; 120 *segment_order_vert = segment_order__contiguous; 121 return true; 122 } 123 if (bytes_per_element == 8) { 124 *segment_order_horz = segment_order__contiguous; 125 *segment_order_vert = segment_order__non_contiguous; 126 return true; 127 } 128 } 129 if (display_swizzle && bytes_per_element == 8) { 130 *segment_order_horz = segment_order__contiguous; 131 *segment_order_vert = segment_order__non_contiguous; 132 return true; 133 } 134 135 return false; 136 } 137 138 bool hubbub2_dcc_support_pixel_format( 139 enum surface_pixel_format format, 140 unsigned int *bytes_per_element) 141 { 142 /* DML: get_bytes_per_element */ 143 switch (format) { 144 case SURFACE_PIXEL_FORMAT_GRPH_ARGB1555: 145 case SURFACE_PIXEL_FORMAT_GRPH_RGB565: 146 *bytes_per_element = 2; 147 return true; 148 case SURFACE_PIXEL_FORMAT_GRPH_ARGB8888: 149 case SURFACE_PIXEL_FORMAT_GRPH_ABGR8888: 150 case SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010: 151 case SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010: 152 case SURFACE_PIXEL_FORMAT_GRPH_RGB111110_FIX: 153 case SURFACE_PIXEL_FORMAT_GRPH_BGR101111_FIX: 154 case SURFACE_PIXEL_FORMAT_GRPH_RGB111110_FLOAT: 155 case SURFACE_PIXEL_FORMAT_GRPH_BGR101111_FLOAT: 156 case SURFACE_PIXEL_FORMAT_GRPH_RGBE: 157 case SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA: 158 *bytes_per_element = 4; 159 return true; 160 case SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616: 161 case SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616: 162 case SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F: 163 case SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F: 164 *bytes_per_element = 8; 165 return true; 166 default: 167 return false; 168 } 169 } 170 171 static void hubbub2_get_blk256_size(unsigned int *blk256_width, unsigned int *blk256_height, 172 unsigned int bytes_per_element) 173 { 174 /* copied from DML. might want to refactor DML to leverage from DML */ 175 /* DML : get_blk256_size */ 176 if (bytes_per_element == 1) { 177 *blk256_width = 16; 178 *blk256_height = 16; 179 } else if (bytes_per_element == 2) { 180 *blk256_width = 16; 181 *blk256_height = 8; 182 } else if (bytes_per_element == 4) { 183 *blk256_width = 8; 184 *blk256_height = 8; 185 } else if (bytes_per_element == 8) { 186 *blk256_width = 8; 187 *blk256_height = 4; 188 } 189 } 190 191 static void hubbub2_det_request_size( 192 unsigned int detile_buf_size, 193 unsigned int height, 194 unsigned int width, 195 unsigned int bpe, 196 bool *req128_horz_wc, 197 bool *req128_vert_wc) 198 { 199 unsigned int blk256_height = 0; 200 unsigned int blk256_width = 0; 201 unsigned int swath_bytes_horz_wc, swath_bytes_vert_wc; 202 203 hubbub2_get_blk256_size(&blk256_width, &blk256_height, bpe); 204 205 swath_bytes_horz_wc = width * blk256_height * bpe; 206 swath_bytes_vert_wc = height * blk256_width * bpe; 207 208 *req128_horz_wc = (2 * swath_bytes_horz_wc <= detile_buf_size) ? 209 false : /* full 256B request */ 210 true; /* half 128b request */ 211 212 *req128_vert_wc = (2 * swath_bytes_vert_wc <= detile_buf_size) ? 213 false : /* full 256B request */ 214 true; /* half 128b request */ 215 } 216 217 bool hubbub2_get_dcc_compression_cap(struct hubbub *hubbub, 218 const struct dc_dcc_surface_param *input, 219 struct dc_surface_dcc_cap *output) 220 { 221 struct dc *dc = hubbub->ctx->dc; 222 /* implement section 1.6.2.1 of DCN1_Programming_Guide.docx */ 223 enum dcc_control dcc_control; 224 unsigned int bpe; 225 enum segment_order segment_order_horz, segment_order_vert; 226 bool req128_horz_wc, req128_vert_wc; 227 228 memset(output, 0, sizeof(*output)); 229 230 if (dc->debug.disable_dcc == DCC_DISABLE) 231 return false; 232 233 if (!hubbub->funcs->dcc_support_pixel_format(input->format, 234 &bpe)) 235 return false; 236 237 if (!hubbub->funcs->dcc_support_swizzle(input->swizzle_mode, bpe, 238 &segment_order_horz, &segment_order_vert)) 239 return false; 240 241 hubbub2_det_request_size(TO_DCN20_HUBBUB(hubbub)->detile_buf_size, 242 input->surface_size.height, input->surface_size.width, 243 bpe, &req128_horz_wc, &req128_vert_wc); 244 245 if (!req128_horz_wc && !req128_vert_wc) { 246 dcc_control = dcc_control__256_256_xxx; 247 } else if (input->scan == SCAN_DIRECTION_HORIZONTAL) { 248 if (!req128_horz_wc) 249 dcc_control = dcc_control__256_256_xxx; 250 else if (segment_order_horz == segment_order__contiguous) 251 dcc_control = dcc_control__128_128_xxx; 252 else 253 dcc_control = dcc_control__256_64_64; 254 } else if (input->scan == SCAN_DIRECTION_VERTICAL) { 255 if (!req128_vert_wc) 256 dcc_control = dcc_control__256_256_xxx; 257 else if (segment_order_vert == segment_order__contiguous) 258 dcc_control = dcc_control__128_128_xxx; 259 else 260 dcc_control = dcc_control__256_64_64; 261 } else { 262 if ((req128_horz_wc && 263 segment_order_horz == segment_order__non_contiguous) || 264 (req128_vert_wc && 265 segment_order_vert == segment_order__non_contiguous)) 266 /* access_dir not known, must use most constraining */ 267 dcc_control = dcc_control__256_64_64; 268 else 269 /* reg128 is true for either horz and vert 270 * but segment_order is contiguous 271 */ 272 dcc_control = dcc_control__128_128_xxx; 273 } 274 275 /* Exception for 64KB_R_X */ 276 if ((bpe == 2) && (input->swizzle_mode == DC_SW_64KB_R_X)) 277 dcc_control = dcc_control__128_128_xxx; 278 279 if (dc->debug.disable_dcc == DCC_HALF_REQ_DISALBE && 280 dcc_control != dcc_control__256_256_xxx) 281 return false; 282 283 switch (dcc_control) { 284 case dcc_control__256_256_xxx: 285 output->grph.rgb.max_uncompressed_blk_size = 256; 286 output->grph.rgb.max_compressed_blk_size = 256; 287 output->grph.rgb.independent_64b_blks = false; 288 break; 289 case dcc_control__128_128_xxx: 290 output->grph.rgb.max_uncompressed_blk_size = 128; 291 output->grph.rgb.max_compressed_blk_size = 128; 292 output->grph.rgb.independent_64b_blks = false; 293 break; 294 case dcc_control__256_64_64: 295 output->grph.rgb.max_uncompressed_blk_size = 256; 296 output->grph.rgb.max_compressed_blk_size = 64; 297 output->grph.rgb.independent_64b_blks = true; 298 break; 299 default: 300 ASSERT(false); 301 break; 302 } 303 output->capable = true; 304 output->const_color_support = true; 305 306 return true; 307 } 308 309 static enum dcn_hubbub_page_table_depth page_table_depth_to_hw(unsigned int page_table_depth) 310 { 311 enum dcn_hubbub_page_table_depth depth = 0; 312 313 switch (page_table_depth) { 314 case 1: 315 depth = DCN_PAGE_TABLE_DEPTH_1_LEVEL; 316 break; 317 case 2: 318 depth = DCN_PAGE_TABLE_DEPTH_2_LEVEL; 319 break; 320 case 3: 321 depth = DCN_PAGE_TABLE_DEPTH_3_LEVEL; 322 break; 323 case 4: 324 depth = DCN_PAGE_TABLE_DEPTH_4_LEVEL; 325 break; 326 default: 327 ASSERT(false); 328 break; 329 } 330 331 return depth; 332 } 333 334 static enum dcn_hubbub_page_table_block_size page_table_block_size_to_hw(unsigned int page_table_block_size) 335 { 336 enum dcn_hubbub_page_table_block_size block_size = 0; 337 338 switch (page_table_block_size) { 339 case 4096: 340 block_size = DCN_PAGE_TABLE_BLOCK_SIZE_4KB; 341 break; 342 case 65536: 343 block_size = DCN_PAGE_TABLE_BLOCK_SIZE_64KB; 344 break; 345 case 32768: 346 block_size = DCN_PAGE_TABLE_BLOCK_SIZE_32KB; 347 break; 348 default: 349 ASSERT(false); 350 block_size = page_table_block_size; 351 break; 352 } 353 354 return block_size; 355 } 356 357 void hubbub2_init_vm_ctx(struct hubbub *hubbub, 358 struct dcn_hubbub_virt_addr_config *va_config, 359 int vmid) 360 { 361 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 362 struct dcn_vmid_page_table_config virt_config; 363 364 virt_config.page_table_start_addr = va_config->page_table_start_addr >> 12; 365 virt_config.page_table_end_addr = va_config->page_table_end_addr >> 12; 366 virt_config.depth = page_table_depth_to_hw(va_config->page_table_depth); 367 virt_config.block_size = page_table_block_size_to_hw(va_config->page_table_block_size); 368 virt_config.page_table_base_addr = va_config->page_table_base_addr; 369 370 dcn20_vmid_setup(&hubbub1->vmid[vmid], &virt_config); 371 } 372 373 int hubbub2_init_dchub_sys_ctx(struct hubbub *hubbub, 374 struct dcn_hubbub_phys_addr_config *pa_config) 375 { 376 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 377 struct dcn_vmid_page_table_config phys_config; 378 379 REG_SET(DCN_VM_FB_LOCATION_BASE, 0, 380 FB_BASE, pa_config->system_aperture.fb_base >> 24); 381 REG_SET(DCN_VM_FB_LOCATION_TOP, 0, 382 FB_TOP, pa_config->system_aperture.fb_top >> 24); 383 REG_SET(DCN_VM_FB_OFFSET, 0, 384 FB_OFFSET, pa_config->system_aperture.fb_offset >> 24); 385 REG_SET(DCN_VM_AGP_BOT, 0, 386 AGP_BOT, pa_config->system_aperture.agp_bot >> 24); 387 REG_SET(DCN_VM_AGP_TOP, 0, 388 AGP_TOP, pa_config->system_aperture.agp_top >> 24); 389 REG_SET(DCN_VM_AGP_BASE, 0, 390 AGP_BASE, pa_config->system_aperture.agp_base >> 24); 391 392 REG_SET(DCN_VM_PROTECTION_FAULT_DEFAULT_ADDR_MSB, 0, 393 DCN_VM_PROTECTION_FAULT_DEFAULT_ADDR_MSB, (pa_config->page_table_default_page_addr >> 44) & 0xF); 394 REG_SET(DCN_VM_PROTECTION_FAULT_DEFAULT_ADDR_LSB, 0, 395 DCN_VM_PROTECTION_FAULT_DEFAULT_ADDR_LSB, (pa_config->page_table_default_page_addr >> 12) & 0xFFFFFFFF); 396 397 if (pa_config->gart_config.page_table_start_addr != pa_config->gart_config.page_table_end_addr) { 398 phys_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr >> 12; 399 phys_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr >> 12; 400 phys_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr; 401 phys_config.depth = 0; 402 phys_config.block_size = 0; 403 // Init VMID 0 based on PA config 404 dcn20_vmid_setup(&hubbub1->vmid[0], &phys_config); 405 } 406 407 return NUM_VMID; 408 } 409 410 void hubbub2_update_dchub(struct hubbub *hubbub, 411 struct dchub_init_data *dh_data) 412 { 413 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 414 415 if (REG(DCN_VM_FB_LOCATION_TOP) == 0) 416 return; 417 418 switch (dh_data->fb_mode) { 419 case FRAME_BUFFER_MODE_ZFB_ONLY: 420 /*For ZFB case need to put DCHUB FB BASE and TOP upside down to indicate ZFB mode*/ 421 REG_UPDATE(DCN_VM_FB_LOCATION_TOP, 422 FB_TOP, 0); 423 424 REG_UPDATE(DCN_VM_FB_LOCATION_BASE, 425 FB_BASE, 0xFFFFFF); 426 427 /*This field defines the 24 MSBs, bits [47:24] of the 48 bit AGP Base*/ 428 REG_UPDATE(DCN_VM_AGP_BASE, 429 AGP_BASE, dh_data->zfb_phys_addr_base >> 24); 430 431 /*This field defines the bottom range of the AGP aperture and represents the 24*/ 432 /*MSBs, bits [47:24] of the 48 address bits*/ 433 REG_UPDATE(DCN_VM_AGP_BOT, 434 AGP_BOT, dh_data->zfb_mc_base_addr >> 24); 435 436 /*This field defines the top range of the AGP aperture and represents the 24*/ 437 /*MSBs, bits [47:24] of the 48 address bits*/ 438 REG_UPDATE(DCN_VM_AGP_TOP, 439 AGP_TOP, (dh_data->zfb_mc_base_addr + 440 dh_data->zfb_size_in_byte - 1) >> 24); 441 break; 442 case FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL: 443 /*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/ 444 445 /*This field defines the 24 MSBs, bits [47:24] of the 48 bit AGP Base*/ 446 REG_UPDATE(DCN_VM_AGP_BASE, 447 AGP_BASE, dh_data->zfb_phys_addr_base >> 24); 448 449 /*This field defines the bottom range of the AGP aperture and represents the 24*/ 450 /*MSBs, bits [47:24] of the 48 address bits*/ 451 REG_UPDATE(DCN_VM_AGP_BOT, 452 AGP_BOT, dh_data->zfb_mc_base_addr >> 24); 453 454 /*This field defines the top range of the AGP aperture and represents the 24*/ 455 /*MSBs, bits [47:24] of the 48 address bits*/ 456 REG_UPDATE(DCN_VM_AGP_TOP, 457 AGP_TOP, (dh_data->zfb_mc_base_addr + 458 dh_data->zfb_size_in_byte - 1) >> 24); 459 break; 460 case FRAME_BUFFER_MODE_LOCAL_ONLY: 461 /*Should not touch FB LOCATION (should be done by VBIOS)*/ 462 463 /*This field defines the 24 MSBs, bits [47:24] of the 48 bit AGP Base*/ 464 REG_UPDATE(DCN_VM_AGP_BASE, 465 AGP_BASE, 0); 466 467 /*This field defines the bottom range of the AGP aperture and represents the 24*/ 468 /*MSBs, bits [47:24] of the 48 address bits*/ 469 REG_UPDATE(DCN_VM_AGP_BOT, 470 AGP_BOT, 0xFFFFFF); 471 472 /*This field defines the top range of the AGP aperture and represents the 24*/ 473 /*MSBs, bits [47:24] of the 48 address bits*/ 474 REG_UPDATE(DCN_VM_AGP_TOP, 475 AGP_TOP, 0); 476 break; 477 default: 478 break; 479 } 480 481 dh_data->dchub_initialzied = true; 482 dh_data->dchub_info_valid = false; 483 } 484 485 void hubbub2_wm_read_state(struct hubbub *hubbub, 486 struct dcn_hubbub_wm *wm) 487 { 488 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 489 490 struct dcn_hubbub_wm_set *s; 491 492 memset(wm, 0, sizeof(struct dcn_hubbub_wm)); 493 494 s = &wm->sets[0]; 495 s->wm_set = 0; 496 s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_A); 497 if (REG(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_A)) 498 s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_A); 499 if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A)) { 500 s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_A); 501 s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_A); 502 } 503 s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_A); 504 505 s = &wm->sets[1]; 506 s->wm_set = 1; 507 s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_B); 508 if (REG(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_B)) 509 s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_B); 510 if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B)) { 511 s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_B); 512 s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_B); 513 } 514 s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_B); 515 516 s = &wm->sets[2]; 517 s->wm_set = 2; 518 s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_C); 519 if (REG(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_C)) 520 s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_C); 521 if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C)) { 522 s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_C); 523 s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_C); 524 } 525 s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_C); 526 527 s = &wm->sets[3]; 528 s->wm_set = 3; 529 s->data_urgent = REG_READ(DCHUBBUB_ARB_DATA_URGENCY_WATERMARK_D); 530 if (REG(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_D)) 531 s->pte_meta_urgent = REG_READ(DCHUBBUB_ARB_PTE_META_URGENCY_WATERMARK_D); 532 if (REG(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D)) { 533 s->sr_enter = REG_READ(DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_D); 534 s->sr_exit = REG_READ(DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_D); 535 } 536 s->dram_clk_change = REG_READ(DCHUBBUB_ARB_ALLOW_DRAM_CLK_CHANGE_WATERMARK_D); 537 } 538 539 void hubbub2_get_dchub_ref_freq(struct hubbub *hubbub, 540 unsigned int dccg_ref_freq_inKhz, 541 unsigned int *dchub_ref_freq_inKhz) 542 { 543 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 544 uint32_t ref_div = 0; 545 uint32_t ref_en = 0; 546 547 REG_GET_2(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_REFDIV, &ref_div, 548 DCHUBBUB_GLOBAL_TIMER_ENABLE, &ref_en); 549 550 if (ref_en) { 551 if (ref_div == 2) 552 *dchub_ref_freq_inKhz = dccg_ref_freq_inKhz / 2; 553 else 554 *dchub_ref_freq_inKhz = dccg_ref_freq_inKhz; 555 556 // DC hub reference frequency must be around 50Mhz, otherwise there may be 557 // overflow/underflow issues when doing HUBBUB programming 558 if (*dchub_ref_freq_inKhz < 40000 || *dchub_ref_freq_inKhz > 60000) 559 ASSERT_CRITICAL(false); 560 561 return; 562 } else { 563 *dchub_ref_freq_inKhz = dccg_ref_freq_inKhz; 564 565 // HUBBUB global timer must be enabled. 566 ASSERT_CRITICAL(false); 567 return; 568 } 569 } 570 571 static bool hubbub2_program_watermarks( 572 struct hubbub *hubbub, 573 struct dcn_watermark_set *watermarks, 574 unsigned int refclk_mhz, 575 bool safe_to_lower) 576 { 577 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 578 bool wm_pending = false; 579 /* 580 * Need to clamp to max of the register values (i.e. no wrap) 581 * for dcn1, all wm registers are 21-bit wide 582 */ 583 if (hubbub1_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) 584 wm_pending = true; 585 586 if (hubbub1_program_stutter_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower)) 587 wm_pending = true; 588 589 /* 590 * There's a special case when going from p-state support to p-state unsupported 591 * here we are going to LOWER watermarks to go to dummy p-state only, but this has 592 * to be done prepare_bandwidth, not optimize 593 */ 594 if (hubbub1->base.ctx->dc->clk_mgr->clks.prev_p_state_change_support == true && 595 hubbub1->base.ctx->dc->clk_mgr->clks.p_state_change_support == false) 596 safe_to_lower = true; 597 598 hubbub1_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower); 599 600 REG_SET(DCHUBBUB_ARB_SAT_LEVEL, 0, 601 DCHUBBUB_ARB_SAT_LEVEL, 60 * refclk_mhz); 602 REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 180); 603 604 hubbub->funcs->allow_self_refresh_control(hubbub, !hubbub->ctx->dc->debug.disable_stutter); 605 return wm_pending; 606 } 607 608 void hubbub2_read_state(struct hubbub *hubbub, struct dcn_hubbub_state *hubbub_state) 609 { 610 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub); 611 612 if (REG(DCN_VM_FAULT_ADDR_MSB)) 613 hubbub_state->vm_fault_addr_msb = REG_READ(DCN_VM_FAULT_ADDR_MSB); 614 615 if (REG(DCN_VM_FAULT_ADDR_LSB)) 616 hubbub_state->vm_fault_addr_msb = REG_READ(DCN_VM_FAULT_ADDR_LSB); 617 618 if (REG(DCN_VM_FAULT_CNTL)) 619 REG_GET(DCN_VM_FAULT_CNTL, DCN_VM_ERROR_STATUS_MODE, &hubbub_state->vm_error_mode); 620 621 if (REG(DCN_VM_FAULT_STATUS)) { 622 REG_GET(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_STATUS, &hubbub_state->vm_error_status); 623 REG_GET(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_VMID, &hubbub_state->vm_error_vmid); 624 REG_GET(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_PIPE, &hubbub_state->vm_error_pipe); 625 } 626 627 if (REG(DCHUBBUB_TEST_DEBUG_INDEX) && REG(DCHUBBUB_TEST_DEBUG_DATA)) { 628 REG_WRITE(DCHUBBUB_TEST_DEBUG_INDEX, 0x6); 629 hubbub_state->test_debug_data = REG_READ(DCHUBBUB_TEST_DEBUG_DATA); 630 } 631 632 if (REG(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL)) 633 hubbub_state->watermark_change_cntl = REG_READ(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL); 634 635 if (REG(DCHUBBUB_ARB_DRAM_STATE_CNTL)) 636 hubbub_state->dram_state_cntl = REG_READ(DCHUBBUB_ARB_DRAM_STATE_CNTL); 637 } 638 639 static const struct hubbub_funcs hubbub2_funcs = { 640 .update_dchub = hubbub2_update_dchub, 641 .init_dchub_sys_ctx = hubbub2_init_dchub_sys_ctx, 642 .init_vm_ctx = hubbub2_init_vm_ctx, 643 .dcc_support_swizzle = hubbub2_dcc_support_swizzle, 644 .dcc_support_pixel_format = hubbub2_dcc_support_pixel_format, 645 .get_dcc_compression_cap = hubbub2_get_dcc_compression_cap, 646 .wm_read_state = hubbub2_wm_read_state, 647 .get_dchub_ref_freq = hubbub2_get_dchub_ref_freq, 648 .program_watermarks = hubbub2_program_watermarks, 649 .is_allow_self_refresh_enabled = hubbub1_is_allow_self_refresh_enabled, 650 .allow_self_refresh_control = hubbub1_allow_self_refresh_control, 651 .hubbub_read_state = hubbub2_read_state, 652 }; 653 654 void hubbub2_construct(struct dcn20_hubbub *hubbub, 655 struct dc_context *ctx, 656 const struct dcn_hubbub_registers *hubbub_regs, 657 const struct dcn_hubbub_shift *hubbub_shift, 658 const struct dcn_hubbub_mask *hubbub_mask) 659 { 660 hubbub->base.ctx = ctx; 661 662 hubbub->base.funcs = &hubbub2_funcs; 663 664 hubbub->regs = hubbub_regs; 665 hubbub->shifts = hubbub_shift; 666 hubbub->masks = hubbub_mask; 667 668 hubbub->debug_test_index_pstate = 0xB; 669 hubbub->detile_buf_size = 164 * 1024; /* 164KB for DCN2.0 */ 670 } 671