1 /* $NetBSD: amdgpu_atombios_crtc.c,v 1.3 2021/12/18 23:44:58 riastradh Exp $ */ 2 3 /* 4 * Copyright 2007-8 Advanced Micro Devices, Inc. 5 * Copyright 2008 Red Hat Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: Dave Airlie 26 * Alex Deucher 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: amdgpu_atombios_crtc.c,v 1.3 2021/12/18 23:44:58 riastradh Exp $"); 31 32 #include <drm/drm_crtc_helper.h> 33 #include <drm/amdgpu_drm.h> 34 #include <drm/drm_fixed.h> 35 #include "amdgpu.h" 36 #include "atom.h" 37 #include "atom-bits.h" 38 #include "atombios_encoders.h" 39 #include "atombios_crtc.h" 40 #include "amdgpu_atombios.h" 41 #include "amdgpu_pll.h" 42 #include "amdgpu_connectors.h" 43 #include "atombios_crtc.h" 44 45 void amdgpu_atombios_crtc_overscan_setup(struct drm_crtc *crtc, 46 struct drm_display_mode *mode, 47 struct drm_display_mode *adjusted_mode) 48 { 49 struct drm_device *dev = crtc->dev; 50 struct amdgpu_device *adev = dev->dev_private; 51 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 52 SET_CRTC_OVERSCAN_PS_ALLOCATION args; 53 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan); 54 int a1, a2; 55 56 memset(&args, 0, sizeof(args)); 57 58 args.ucCRTC = amdgpu_crtc->crtc_id; 59 60 switch (amdgpu_crtc->rmx_type) { 61 case RMX_CENTER: 62 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); 63 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); 64 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); 65 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); 66 break; 67 case RMX_ASPECT: 68 a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay; 69 a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay; 70 71 if (a1 > a2) { 72 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); 73 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); 74 } else if (a2 > a1) { 75 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); 76 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); 77 } 78 break; 79 case RMX_FULL: 80 default: 81 args.usOverscanRight = cpu_to_le16(amdgpu_crtc->h_border); 82 args.usOverscanLeft = cpu_to_le16(amdgpu_crtc->h_border); 83 args.usOverscanBottom = cpu_to_le16(amdgpu_crtc->v_border); 84 args.usOverscanTop = cpu_to_le16(amdgpu_crtc->v_border); 85 break; 86 } 87 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 88 } 89 90 void amdgpu_atombios_crtc_scaler_setup(struct drm_crtc *crtc) 91 { 92 struct drm_device *dev = crtc->dev; 93 struct amdgpu_device *adev = dev->dev_private; 94 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 95 ENABLE_SCALER_PS_ALLOCATION args; 96 int index = GetIndexIntoMasterTable(COMMAND, EnableScaler); 97 98 memset(&args, 0, sizeof(args)); 99 100 args.ucScaler = amdgpu_crtc->crtc_id; 101 102 switch (amdgpu_crtc->rmx_type) { 103 case RMX_FULL: 104 args.ucEnable = ATOM_SCALER_EXPANSION; 105 break; 106 case RMX_CENTER: 107 args.ucEnable = ATOM_SCALER_CENTER; 108 break; 109 case RMX_ASPECT: 110 args.ucEnable = ATOM_SCALER_EXPANSION; 111 break; 112 default: 113 args.ucEnable = ATOM_SCALER_DISABLE; 114 break; 115 } 116 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 117 } 118 119 void amdgpu_atombios_crtc_lock(struct drm_crtc *crtc, int lock) 120 { 121 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 122 struct drm_device *dev = crtc->dev; 123 struct amdgpu_device *adev = dev->dev_private; 124 int index = 125 GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters); 126 ENABLE_CRTC_PS_ALLOCATION args; 127 128 memset(&args, 0, sizeof(args)); 129 130 args.ucCRTC = amdgpu_crtc->crtc_id; 131 args.ucEnable = lock; 132 133 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 134 } 135 136 void amdgpu_atombios_crtc_enable(struct drm_crtc *crtc, int state) 137 { 138 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 139 struct drm_device *dev = crtc->dev; 140 struct amdgpu_device *adev = dev->dev_private; 141 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC); 142 ENABLE_CRTC_PS_ALLOCATION args; 143 144 memset(&args, 0, sizeof(args)); 145 146 args.ucCRTC = amdgpu_crtc->crtc_id; 147 args.ucEnable = state; 148 149 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 150 } 151 152 void amdgpu_atombios_crtc_blank(struct drm_crtc *crtc, int state) 153 { 154 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 155 struct drm_device *dev = crtc->dev; 156 struct amdgpu_device *adev = dev->dev_private; 157 int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC); 158 BLANK_CRTC_PS_ALLOCATION args; 159 160 memset(&args, 0, sizeof(args)); 161 162 args.ucCRTC = amdgpu_crtc->crtc_id; 163 args.ucBlanking = state; 164 165 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 166 } 167 168 void amdgpu_atombios_crtc_powergate(struct drm_crtc *crtc, int state) 169 { 170 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 171 struct drm_device *dev = crtc->dev; 172 struct amdgpu_device *adev = dev->dev_private; 173 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating); 174 ENABLE_DISP_POWER_GATING_PS_ALLOCATION args; 175 176 memset(&args, 0, sizeof(args)); 177 178 args.ucDispPipeId = amdgpu_crtc->crtc_id; 179 args.ucEnable = state; 180 181 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 182 } 183 184 void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev) 185 { 186 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating); 187 ENABLE_DISP_POWER_GATING_PS_ALLOCATION args; 188 189 memset(&args, 0, sizeof(args)); 190 191 args.ucEnable = ATOM_INIT; 192 193 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 194 } 195 196 void amdgpu_atombios_crtc_set_dtd_timing(struct drm_crtc *crtc, 197 struct drm_display_mode *mode) 198 { 199 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 200 struct drm_device *dev = crtc->dev; 201 struct amdgpu_device *adev = dev->dev_private; 202 SET_CRTC_USING_DTD_TIMING_PARAMETERS args; 203 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming); 204 u16 misc = 0; 205 206 memset(&args, 0, sizeof(args)); 207 args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (amdgpu_crtc->h_border * 2)); 208 args.usH_Blanking_Time = 209 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (amdgpu_crtc->h_border * 2)); 210 args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (amdgpu_crtc->v_border * 2)); 211 args.usV_Blanking_Time = 212 cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (amdgpu_crtc->v_border * 2)); 213 args.usH_SyncOffset = 214 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + amdgpu_crtc->h_border); 215 args.usH_SyncWidth = 216 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start); 217 args.usV_SyncOffset = 218 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + amdgpu_crtc->v_border); 219 args.usV_SyncWidth = 220 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start); 221 args.ucH_Border = amdgpu_crtc->h_border; 222 args.ucV_Border = amdgpu_crtc->v_border; 223 224 if (mode->flags & DRM_MODE_FLAG_NVSYNC) 225 misc |= ATOM_VSYNC_POLARITY; 226 if (mode->flags & DRM_MODE_FLAG_NHSYNC) 227 misc |= ATOM_HSYNC_POLARITY; 228 if (mode->flags & DRM_MODE_FLAG_CSYNC) 229 misc |= ATOM_COMPOSITESYNC; 230 if (mode->flags & DRM_MODE_FLAG_INTERLACE) 231 misc |= ATOM_INTERLACE; 232 if (mode->flags & DRM_MODE_FLAG_DBLSCAN) 233 misc |= ATOM_DOUBLE_CLOCK_MODE; 234 235 args.susModeMiscInfo.usAccess = cpu_to_le16(misc); 236 args.ucCRTC = amdgpu_crtc->crtc_id; 237 238 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 239 } 240 241 union atom_enable_ss { 242 ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1; 243 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2; 244 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3; 245 }; 246 247 static void amdgpu_atombios_crtc_program_ss(struct amdgpu_device *adev, 248 int enable, 249 int pll_id, 250 int crtc_id, 251 struct amdgpu_atom_ss *ss) 252 { 253 unsigned i; 254 int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL); 255 union atom_enable_ss args; 256 257 if (enable) { 258 /* Don't mess with SS if percentage is 0 or external ss. 259 * SS is already disabled previously, and disabling it 260 * again can cause display problems if the pll is already 261 * programmed. 262 */ 263 if (ss->percentage == 0) 264 return; 265 if (ss->type & ATOM_EXTERNAL_SS_MASK) 266 return; 267 } else { 268 for (i = 0; i < adev->mode_info.num_crtc; i++) { 269 if (adev->mode_info.crtcs[i] && 270 adev->mode_info.crtcs[i]->enabled && 271 i != crtc_id && 272 pll_id == adev->mode_info.crtcs[i]->pll_id) { 273 /* one other crtc is using this pll don't turn 274 * off spread spectrum as it might turn off 275 * display on active crtc 276 */ 277 return; 278 } 279 } 280 } 281 282 memset(&args, 0, sizeof(args)); 283 284 args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0); 285 args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK; 286 switch (pll_id) { 287 case ATOM_PPLL1: 288 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL; 289 break; 290 case ATOM_PPLL2: 291 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL; 292 break; 293 case ATOM_DCPLL: 294 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL; 295 break; 296 case ATOM_PPLL_INVALID: 297 return; 298 } 299 args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); 300 args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step); 301 args.v3.ucEnable = enable; 302 303 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 304 } 305 306 union adjust_pixel_clock { 307 ADJUST_DISPLAY_PLL_PS_ALLOCATION v1; 308 ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3; 309 }; 310 311 static u32 amdgpu_atombios_crtc_adjust_pll(struct drm_crtc *crtc, 312 struct drm_display_mode *mode) 313 { 314 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 315 struct drm_device *dev = crtc->dev; 316 struct amdgpu_device *adev = dev->dev_private; 317 struct drm_encoder *encoder = amdgpu_crtc->encoder; 318 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 319 struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder); 320 u32 adjusted_clock = mode->clock; 321 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(encoder); 322 u32 dp_clock = mode->clock; 323 u32 clock = mode->clock; 324 int bpc = amdgpu_crtc->bpc; 325 bool is_duallink = amdgpu_dig_monitor_is_duallink(encoder, mode->clock); 326 union adjust_pixel_clock args; 327 u8 frev, crev; 328 int index; 329 330 amdgpu_crtc->pll_flags = AMDGPU_PLL_USE_FRAC_FB_DIV; 331 332 if ((amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || 333 (amdgpu_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) { 334 if (connector) { 335 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 336 struct amdgpu_connector_atom_dig *dig_connector = 337 amdgpu_connector->con_priv; 338 339 dp_clock = dig_connector->dp_clock; 340 } 341 } 342 343 /* use recommended ref_div for ss */ 344 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { 345 if (amdgpu_crtc->ss_enabled) { 346 if (amdgpu_crtc->ss.refdiv) { 347 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_REF_DIV; 348 amdgpu_crtc->pll_reference_div = amdgpu_crtc->ss.refdiv; 349 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 350 } 351 } 352 } 353 354 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */ 355 if (amdgpu_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1) 356 adjusted_clock = mode->clock * 2; 357 if (amdgpu_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) 358 amdgpu_crtc->pll_flags |= AMDGPU_PLL_PREFER_CLOSEST_LOWER; 359 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) 360 amdgpu_crtc->pll_flags |= AMDGPU_PLL_IS_LCD; 361 362 363 /* adjust pll for deep color modes */ 364 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 365 switch (bpc) { 366 case 8: 367 default: 368 break; 369 case 10: 370 clock = (clock * 5) / 4; 371 break; 372 case 12: 373 clock = (clock * 3) / 2; 374 break; 375 case 16: 376 clock = clock * 2; 377 break; 378 } 379 } 380 381 /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock 382 * accordingly based on the encoder/transmitter to work around 383 * special hw requirements. 384 */ 385 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll); 386 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 387 &crev)) 388 return adjusted_clock; 389 390 memset(&args, 0, sizeof(args)); 391 392 switch (frev) { 393 case 1: 394 switch (crev) { 395 case 1: 396 case 2: 397 args.v1.usPixelClock = cpu_to_le16(clock / 10); 398 args.v1.ucTransmitterID = amdgpu_encoder->encoder_id; 399 args.v1.ucEncodeMode = encoder_mode; 400 if (amdgpu_crtc->ss_enabled && amdgpu_crtc->ss.percentage) 401 args.v1.ucConfig |= 402 ADJUST_DISPLAY_CONFIG_SS_ENABLE; 403 404 amdgpu_atom_execute_table(adev->mode_info.atom_context, 405 index, (uint32_t *)&args); 406 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10; 407 break; 408 case 3: 409 args.v3.sInput.usPixelClock = cpu_to_le16(clock / 10); 410 args.v3.sInput.ucTransmitterID = amdgpu_encoder->encoder_id; 411 args.v3.sInput.ucEncodeMode = encoder_mode; 412 args.v3.sInput.ucDispPllConfig = 0; 413 if (amdgpu_crtc->ss_enabled && amdgpu_crtc->ss.percentage) 414 args.v3.sInput.ucDispPllConfig |= 415 DISPPLL_CONFIG_SS_ENABLE; 416 if (ENCODER_MODE_IS_DP(encoder_mode)) { 417 args.v3.sInput.ucDispPllConfig |= 418 DISPPLL_CONFIG_COHERENT_MODE; 419 /* 16200 or 27000 */ 420 args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10); 421 } else if (amdgpu_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) { 422 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; 423 if (dig->coherent_mode) 424 args.v3.sInput.ucDispPllConfig |= 425 DISPPLL_CONFIG_COHERENT_MODE; 426 if (is_duallink) 427 args.v3.sInput.ucDispPllConfig |= 428 DISPPLL_CONFIG_DUAL_LINK; 429 } 430 if (amdgpu_encoder_get_dp_bridge_encoder_id(encoder) != 431 ENCODER_OBJECT_ID_NONE) 432 args.v3.sInput.ucExtTransmitterID = 433 amdgpu_encoder_get_dp_bridge_encoder_id(encoder); 434 else 435 args.v3.sInput.ucExtTransmitterID = 0; 436 437 amdgpu_atom_execute_table(adev->mode_info.atom_context, 438 index, (uint32_t *)&args); 439 adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10; 440 if (args.v3.sOutput.ucRefDiv) { 441 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 442 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_REF_DIV; 443 amdgpu_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv; 444 } 445 if (args.v3.sOutput.ucPostDiv) { 446 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 447 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_POST_DIV; 448 amdgpu_crtc->pll_post_div = args.v3.sOutput.ucPostDiv; 449 } 450 break; 451 default: 452 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 453 return adjusted_clock; 454 } 455 break; 456 default: 457 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 458 return adjusted_clock; 459 } 460 461 return adjusted_clock; 462 } 463 464 union set_pixel_clock { 465 SET_PIXEL_CLOCK_PS_ALLOCATION base; 466 PIXEL_CLOCK_PARAMETERS v1; 467 PIXEL_CLOCK_PARAMETERS_V2 v2; 468 PIXEL_CLOCK_PARAMETERS_V3 v3; 469 PIXEL_CLOCK_PARAMETERS_V5 v5; 470 PIXEL_CLOCK_PARAMETERS_V6 v6; 471 PIXEL_CLOCK_PARAMETERS_V7 v7; 472 }; 473 474 /* on DCE5, make sure the voltage is high enough to support the 475 * required disp clk. 476 */ 477 void amdgpu_atombios_crtc_set_disp_eng_pll(struct amdgpu_device *adev, 478 u32 dispclk) 479 { 480 u8 frev, crev; 481 int index; 482 union set_pixel_clock args; 483 484 memset(&args, 0, sizeof(args)); 485 486 index = GetIndexIntoMasterTable(COMMAND, SetPixelClock); 487 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 488 &crev)) 489 return; 490 491 switch (frev) { 492 case 1: 493 switch (crev) { 494 case 5: 495 /* if the default dcpll clock is specified, 496 * SetPixelClock provides the dividers 497 */ 498 args.v5.ucCRTC = ATOM_CRTC_INVALID; 499 args.v5.usPixelClock = cpu_to_le16(dispclk); 500 args.v5.ucPpll = ATOM_DCPLL; 501 break; 502 case 6: 503 /* if the default dcpll clock is specified, 504 * SetPixelClock provides the dividers 505 */ 506 args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk); 507 if (adev->asic_type == CHIP_TAHITI || 508 adev->asic_type == CHIP_PITCAIRN || 509 adev->asic_type == CHIP_VERDE || 510 adev->asic_type == CHIP_OLAND) 511 args.v6.ucPpll = ATOM_PPLL0; 512 else 513 args.v6.ucPpll = ATOM_EXT_PLL1; 514 break; 515 default: 516 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 517 return; 518 } 519 break; 520 default: 521 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 522 return; 523 } 524 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 525 } 526 527 union set_dce_clock { 528 SET_DCE_CLOCK_PS_ALLOCATION_V1_1 v1_1; 529 SET_DCE_CLOCK_PS_ALLOCATION_V2_1 v2_1; 530 }; 531 532 u32 amdgpu_atombios_crtc_set_dce_clock(struct amdgpu_device *adev, 533 u32 freq, u8 clk_type, u8 clk_src) 534 { 535 u8 frev, crev; 536 int index; 537 union set_dce_clock args; 538 u32 ret_freq = 0; 539 540 memset(&args, 0, sizeof(args)); 541 542 index = GetIndexIntoMasterTable(COMMAND, SetDCEClock); 543 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 544 &crev)) 545 return 0; 546 547 switch (frev) { 548 case 2: 549 switch (crev) { 550 case 1: 551 args.v2_1.asParam.ulDCEClkFreq = cpu_to_le32(freq); /* 10kHz units */ 552 args.v2_1.asParam.ucDCEClkType = clk_type; 553 args.v2_1.asParam.ucDCEClkSrc = clk_src; 554 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 555 ret_freq = le32_to_cpu(args.v2_1.asParam.ulDCEClkFreq) * 10; 556 break; 557 default: 558 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 559 return 0; 560 } 561 break; 562 default: 563 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 564 return 0; 565 } 566 567 return ret_freq; 568 } 569 570 static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id) 571 { 572 if (ENCODER_MODE_IS_DP(encoder_mode)) { 573 if (pll_id < ATOM_EXT_PLL1) 574 return true; 575 else 576 return false; 577 } else { 578 return true; 579 } 580 } 581 582 void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc, 583 u32 crtc_id, 584 int pll_id, 585 u32 encoder_mode, 586 u32 encoder_id, 587 u32 clock, 588 u32 ref_div, 589 u32 fb_div, 590 u32 frac_fb_div, 591 u32 post_div, 592 int bpc, 593 bool ss_enabled, 594 struct amdgpu_atom_ss *ss) 595 { 596 struct drm_device *dev = crtc->dev; 597 struct amdgpu_device *adev = dev->dev_private; 598 u8 frev, crev; 599 int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock); 600 union set_pixel_clock args; 601 602 memset(&args, 0, sizeof(args)); 603 604 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 605 &crev)) 606 return; 607 608 switch (frev) { 609 case 1: 610 switch (crev) { 611 case 1: 612 if (clock == ATOM_DISABLE) 613 return; 614 args.v1.usPixelClock = cpu_to_le16(clock / 10); 615 args.v1.usRefDiv = cpu_to_le16(ref_div); 616 args.v1.usFbDiv = cpu_to_le16(fb_div); 617 args.v1.ucFracFbDiv = frac_fb_div; 618 args.v1.ucPostDiv = post_div; 619 args.v1.ucPpll = pll_id; 620 args.v1.ucCRTC = crtc_id; 621 args.v1.ucRefDivSrc = 1; 622 break; 623 case 2: 624 args.v2.usPixelClock = cpu_to_le16(clock / 10); 625 args.v2.usRefDiv = cpu_to_le16(ref_div); 626 args.v2.usFbDiv = cpu_to_le16(fb_div); 627 args.v2.ucFracFbDiv = frac_fb_div; 628 args.v2.ucPostDiv = post_div; 629 args.v2.ucPpll = pll_id; 630 args.v2.ucCRTC = crtc_id; 631 args.v2.ucRefDivSrc = 1; 632 break; 633 case 3: 634 args.v3.usPixelClock = cpu_to_le16(clock / 10); 635 args.v3.usRefDiv = cpu_to_le16(ref_div); 636 args.v3.usFbDiv = cpu_to_le16(fb_div); 637 args.v3.ucFracFbDiv = frac_fb_div; 638 args.v3.ucPostDiv = post_div; 639 args.v3.ucPpll = pll_id; 640 if (crtc_id == ATOM_CRTC2) 641 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2; 642 else 643 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1; 644 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) 645 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC; 646 args.v3.ucTransmitterId = encoder_id; 647 args.v3.ucEncoderMode = encoder_mode; 648 break; 649 case 5: 650 args.v5.ucCRTC = crtc_id; 651 args.v5.usPixelClock = cpu_to_le16(clock / 10); 652 args.v5.ucRefDiv = ref_div; 653 args.v5.usFbDiv = cpu_to_le16(fb_div); 654 args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000); 655 args.v5.ucPostDiv = post_div; 656 args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */ 657 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) && 658 (pll_id < ATOM_EXT_PLL1)) 659 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC; 660 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 661 switch (bpc) { 662 case 8: 663 default: 664 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP; 665 break; 666 case 10: 667 /* yes this is correct, the atom define is wrong */ 668 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP; 669 break; 670 case 12: 671 /* yes this is correct, the atom define is wrong */ 672 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP; 673 break; 674 } 675 } 676 args.v5.ucTransmitterID = encoder_id; 677 args.v5.ucEncoderMode = encoder_mode; 678 args.v5.ucPpll = pll_id; 679 break; 680 case 6: 681 args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10); 682 args.v6.ucRefDiv = ref_div; 683 args.v6.usFbDiv = cpu_to_le16(fb_div); 684 args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000); 685 args.v6.ucPostDiv = post_div; 686 args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */ 687 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) && 688 (pll_id < ATOM_EXT_PLL1) && 689 !is_pixel_clock_source_from_pll(encoder_mode, pll_id)) 690 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC; 691 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 692 switch (bpc) { 693 case 8: 694 default: 695 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP; 696 break; 697 case 10: 698 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6; 699 break; 700 case 12: 701 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6; 702 break; 703 case 16: 704 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP; 705 break; 706 } 707 } 708 args.v6.ucTransmitterID = encoder_id; 709 args.v6.ucEncoderMode = encoder_mode; 710 args.v6.ucPpll = pll_id; 711 break; 712 case 7: 713 args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */ 714 args.v7.ucMiscInfo = 0; 715 if ((encoder_mode == ATOM_ENCODER_MODE_DVI) && 716 (clock > 165000)) 717 args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN; 718 args.v7.ucCRTC = crtc_id; 719 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 720 switch (bpc) { 721 case 8: 722 default: 723 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS; 724 break; 725 case 10: 726 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4; 727 break; 728 case 12: 729 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2; 730 break; 731 case 16: 732 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1; 733 break; 734 } 735 } 736 args.v7.ucTransmitterID = encoder_id; 737 args.v7.ucEncoderMode = encoder_mode; 738 args.v7.ucPpll = pll_id; 739 break; 740 default: 741 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 742 return; 743 } 744 break; 745 default: 746 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 747 return; 748 } 749 750 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 751 } 752 753 int amdgpu_atombios_crtc_prepare_pll(struct drm_crtc *crtc, 754 struct drm_display_mode *mode) 755 { 756 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 757 struct drm_device *dev = crtc->dev; 758 struct amdgpu_device *adev = dev->dev_private; 759 struct amdgpu_encoder *amdgpu_encoder = 760 to_amdgpu_encoder(amdgpu_crtc->encoder); 761 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder); 762 763 amdgpu_crtc->bpc = 8; 764 amdgpu_crtc->ss_enabled = false; 765 766 if ((amdgpu_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || 767 (amdgpu_encoder_get_dp_bridge_encoder_id(amdgpu_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) { 768 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; 769 struct drm_connector *connector = 770 amdgpu_get_connector_for_encoder(amdgpu_crtc->encoder); 771 struct amdgpu_connector *amdgpu_connector = 772 to_amdgpu_connector(connector); 773 struct amdgpu_connector_atom_dig *dig_connector = 774 amdgpu_connector->con_priv; 775 int dp_clock; 776 777 /* Assign mode clock for hdmi deep color max clock limit check */ 778 amdgpu_connector->pixelclock_for_modeset = mode->clock; 779 amdgpu_crtc->bpc = amdgpu_connector_get_monitor_bpc(connector); 780 781 switch (encoder_mode) { 782 case ATOM_ENCODER_MODE_DP_MST: 783 case ATOM_ENCODER_MODE_DP: 784 /* DP/eDP */ 785 dp_clock = dig_connector->dp_clock / 10; 786 amdgpu_crtc->ss_enabled = 787 amdgpu_atombios_get_asic_ss_info(adev, &amdgpu_crtc->ss, 788 ASIC_INTERNAL_SS_ON_DP, 789 dp_clock); 790 break; 791 case ATOM_ENCODER_MODE_LVDS: 792 amdgpu_crtc->ss_enabled = 793 amdgpu_atombios_get_asic_ss_info(adev, 794 &amdgpu_crtc->ss, 795 dig->lcd_ss_id, 796 mode->clock / 10); 797 break; 798 case ATOM_ENCODER_MODE_DVI: 799 amdgpu_crtc->ss_enabled = 800 amdgpu_atombios_get_asic_ss_info(adev, 801 &amdgpu_crtc->ss, 802 ASIC_INTERNAL_SS_ON_TMDS, 803 mode->clock / 10); 804 break; 805 case ATOM_ENCODER_MODE_HDMI: 806 amdgpu_crtc->ss_enabled = 807 amdgpu_atombios_get_asic_ss_info(adev, 808 &amdgpu_crtc->ss, 809 ASIC_INTERNAL_SS_ON_HDMI, 810 mode->clock / 10); 811 break; 812 default: 813 break; 814 } 815 } 816 817 /* adjust pixel clock as needed */ 818 amdgpu_crtc->adjusted_clock = amdgpu_atombios_crtc_adjust_pll(crtc, mode); 819 820 return 0; 821 } 822 823 void amdgpu_atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) 824 { 825 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 826 struct drm_device *dev = crtc->dev; 827 struct amdgpu_device *adev = dev->dev_private; 828 struct amdgpu_encoder *amdgpu_encoder = 829 to_amdgpu_encoder(amdgpu_crtc->encoder); 830 u32 pll_clock = mode->clock; 831 u32 clock = mode->clock; 832 u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0; 833 struct amdgpu_pll *pll; 834 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder); 835 836 /* pass the actual clock to amdgpu_atombios_crtc_program_pll for HDMI */ 837 if ((encoder_mode == ATOM_ENCODER_MODE_HDMI) && 838 (amdgpu_crtc->bpc > 8)) 839 clock = amdgpu_crtc->adjusted_clock; 840 841 switch (amdgpu_crtc->pll_id) { 842 case ATOM_PPLL1: 843 pll = &adev->clock.ppll[0]; 844 break; 845 case ATOM_PPLL2: 846 pll = &adev->clock.ppll[1]; 847 break; 848 case ATOM_PPLL0: 849 case ATOM_PPLL_INVALID: 850 default: 851 pll = &adev->clock.ppll[2]; 852 break; 853 } 854 855 /* update pll params */ 856 pll->flags = amdgpu_crtc->pll_flags; 857 pll->reference_div = amdgpu_crtc->pll_reference_div; 858 pll->post_div = amdgpu_crtc->pll_post_div; 859 860 amdgpu_pll_compute(pll, amdgpu_crtc->adjusted_clock, &pll_clock, 861 &fb_div, &frac_fb_div, &ref_div, &post_div); 862 863 amdgpu_atombios_crtc_program_ss(adev, ATOM_DISABLE, amdgpu_crtc->pll_id, 864 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss); 865 866 amdgpu_atombios_crtc_program_pll(crtc, amdgpu_crtc->crtc_id, amdgpu_crtc->pll_id, 867 encoder_mode, amdgpu_encoder->encoder_id, clock, 868 ref_div, fb_div, frac_fb_div, post_div, 869 amdgpu_crtc->bpc, amdgpu_crtc->ss_enabled, &amdgpu_crtc->ss); 870 871 if (amdgpu_crtc->ss_enabled) { 872 /* calculate ss amount and step size */ 873 u32 step_size; 874 u32 amount = (((fb_div * 10) + frac_fb_div) * 875 (u32)amdgpu_crtc->ss.percentage) / 876 (100 * (u32)amdgpu_crtc->ss.percentage_divider); 877 amdgpu_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK; 878 amdgpu_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) & 879 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK; 880 if (amdgpu_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD) 881 step_size = (4 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) / 882 (125 * 25 * pll->reference_freq / 100); 883 else 884 step_size = (2 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) / 885 (125 * 25 * pll->reference_freq / 100); 886 amdgpu_crtc->ss.step = step_size; 887 888 amdgpu_atombios_crtc_program_ss(adev, ATOM_ENABLE, amdgpu_crtc->pll_id, 889 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss); 890 } 891 } 892 893
Indexes created Sat Sep 20 22:09:52 GMT 2025