1 /* 2 * Copyright 2007-8 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: Dave Airlie 24 * Alex Deucher 25 */ 26 #include <drm/drmP.h> 27 #include <drm/drm_crtc_helper.h> 28 #include <drm/amdgpu_drm.h> 29 #include <drm/drm_fixed.h> 30 #include "amdgpu.h" 31 #include "atom.h" 32 #include "atom-bits.h" 33 #include "atombios_encoders.h" 34 #include "amdgpu_atombios.h" 35 #include "amdgpu_pll.h" 36 #include "amdgpu_connectors.h" 37 38 void amdgpu_atombios_crtc_overscan_setup(struct drm_crtc *crtc, 39 struct drm_display_mode *mode, 40 struct drm_display_mode *adjusted_mode) 41 { 42 struct drm_device *dev = crtc->dev; 43 struct amdgpu_device *adev = dev->dev_private; 44 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 45 SET_CRTC_OVERSCAN_PS_ALLOCATION args; 46 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan); 47 int a1, a2; 48 49 memset(&args, 0, sizeof(args)); 50 51 args.ucCRTC = amdgpu_crtc->crtc_id; 52 53 switch (amdgpu_crtc->rmx_type) { 54 case RMX_CENTER: 55 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); 56 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); 57 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); 58 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); 59 break; 60 case RMX_ASPECT: 61 a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay; 62 a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay; 63 64 if (a1 > a2) { 65 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); 66 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); 67 } else if (a2 > a1) { 68 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); 69 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); 70 } 71 break; 72 case RMX_FULL: 73 default: 74 args.usOverscanRight = cpu_to_le16(amdgpu_crtc->h_border); 75 args.usOverscanLeft = cpu_to_le16(amdgpu_crtc->h_border); 76 args.usOverscanBottom = cpu_to_le16(amdgpu_crtc->v_border); 77 args.usOverscanTop = cpu_to_le16(amdgpu_crtc->v_border); 78 break; 79 } 80 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 81 } 82 83 void amdgpu_atombios_crtc_scaler_setup(struct drm_crtc *crtc) 84 { 85 struct drm_device *dev = crtc->dev; 86 struct amdgpu_device *adev = dev->dev_private; 87 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 88 ENABLE_SCALER_PS_ALLOCATION args; 89 int index = GetIndexIntoMasterTable(COMMAND, EnableScaler); 90 91 memset(&args, 0, sizeof(args)); 92 93 args.ucScaler = amdgpu_crtc->crtc_id; 94 95 switch (amdgpu_crtc->rmx_type) { 96 case RMX_FULL: 97 args.ucEnable = ATOM_SCALER_EXPANSION; 98 break; 99 case RMX_CENTER: 100 args.ucEnable = ATOM_SCALER_CENTER; 101 break; 102 case RMX_ASPECT: 103 args.ucEnable = ATOM_SCALER_EXPANSION; 104 break; 105 default: 106 args.ucEnable = ATOM_SCALER_DISABLE; 107 break; 108 } 109 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 110 } 111 112 void amdgpu_atombios_crtc_lock(struct drm_crtc *crtc, int lock) 113 { 114 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 115 struct drm_device *dev = crtc->dev; 116 struct amdgpu_device *adev = dev->dev_private; 117 int index = 118 GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters); 119 ENABLE_CRTC_PS_ALLOCATION args; 120 121 memset(&args, 0, sizeof(args)); 122 123 args.ucCRTC = amdgpu_crtc->crtc_id; 124 args.ucEnable = lock; 125 126 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 127 } 128 129 void amdgpu_atombios_crtc_enable(struct drm_crtc *crtc, int state) 130 { 131 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 132 struct drm_device *dev = crtc->dev; 133 struct amdgpu_device *adev = dev->dev_private; 134 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC); 135 ENABLE_CRTC_PS_ALLOCATION args; 136 137 memset(&args, 0, sizeof(args)); 138 139 args.ucCRTC = amdgpu_crtc->crtc_id; 140 args.ucEnable = state; 141 142 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 143 } 144 145 void amdgpu_atombios_crtc_blank(struct drm_crtc *crtc, int state) 146 { 147 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 148 struct drm_device *dev = crtc->dev; 149 struct amdgpu_device *adev = dev->dev_private; 150 int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC); 151 BLANK_CRTC_PS_ALLOCATION args; 152 153 memset(&args, 0, sizeof(args)); 154 155 args.ucCRTC = amdgpu_crtc->crtc_id; 156 args.ucBlanking = state; 157 158 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 159 } 160 161 void amdgpu_atombios_crtc_powergate(struct drm_crtc *crtc, int state) 162 { 163 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 164 struct drm_device *dev = crtc->dev; 165 struct amdgpu_device *adev = dev->dev_private; 166 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating); 167 ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args; 168 169 memset(&args, 0, sizeof(args)); 170 171 args.ucDispPipeId = amdgpu_crtc->crtc_id; 172 args.ucEnable = state; 173 174 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 175 } 176 177 void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev) 178 { 179 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating); 180 ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args; 181 182 memset(&args, 0, sizeof(args)); 183 184 args.ucEnable = ATOM_INIT; 185 186 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 187 } 188 189 void amdgpu_atombios_crtc_set_dtd_timing(struct drm_crtc *crtc, 190 struct drm_display_mode *mode) 191 { 192 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 193 struct drm_device *dev = crtc->dev; 194 struct amdgpu_device *adev = dev->dev_private; 195 SET_CRTC_USING_DTD_TIMING_PARAMETERS args; 196 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming); 197 u16 misc = 0; 198 199 memset(&args, 0, sizeof(args)); 200 args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (amdgpu_crtc->h_border * 2)); 201 args.usH_Blanking_Time = 202 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (amdgpu_crtc->h_border * 2)); 203 args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (amdgpu_crtc->v_border * 2)); 204 args.usV_Blanking_Time = 205 cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (amdgpu_crtc->v_border * 2)); 206 args.usH_SyncOffset = 207 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + amdgpu_crtc->h_border); 208 args.usH_SyncWidth = 209 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start); 210 args.usV_SyncOffset = 211 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + amdgpu_crtc->v_border); 212 args.usV_SyncWidth = 213 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start); 214 args.ucH_Border = amdgpu_crtc->h_border; 215 args.ucV_Border = amdgpu_crtc->v_border; 216 217 if (mode->flags & DRM_MODE_FLAG_NVSYNC) 218 misc |= ATOM_VSYNC_POLARITY; 219 if (mode->flags & DRM_MODE_FLAG_NHSYNC) 220 misc |= ATOM_HSYNC_POLARITY; 221 if (mode->flags & DRM_MODE_FLAG_CSYNC) 222 misc |= ATOM_COMPOSITESYNC; 223 if (mode->flags & DRM_MODE_FLAG_INTERLACE) 224 misc |= ATOM_INTERLACE; 225 if (mode->flags & DRM_MODE_FLAG_DBLSCAN) 226 misc |= ATOM_DOUBLE_CLOCK_MODE; 227 228 args.susModeMiscInfo.usAccess = cpu_to_le16(misc); 229 args.ucCRTC = amdgpu_crtc->crtc_id; 230 231 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 232 } 233 234 union atom_enable_ss { 235 ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1; 236 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2; 237 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3; 238 }; 239 240 static void amdgpu_atombios_crtc_program_ss(struct amdgpu_device *adev, 241 int enable, 242 int pll_id, 243 int crtc_id, 244 struct amdgpu_atom_ss *ss) 245 { 246 unsigned i; 247 int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL); 248 union atom_enable_ss args; 249 250 if (enable) { 251 /* Don't mess with SS if percentage is 0 or external ss. 252 * SS is already disabled previously, and disabling it 253 * again can cause display problems if the pll is already 254 * programmed. 255 */ 256 if (ss->percentage == 0) 257 return; 258 if (ss->type & ATOM_EXTERNAL_SS_MASK) 259 return; 260 } else { 261 for (i = 0; i < adev->mode_info.num_crtc; i++) { 262 if (adev->mode_info.crtcs[i] && 263 adev->mode_info.crtcs[i]->enabled && 264 i != crtc_id && 265 pll_id == adev->mode_info.crtcs[i]->pll_id) { 266 /* one other crtc is using this pll don't turn 267 * off spread spectrum as it might turn off 268 * display on active crtc 269 */ 270 return; 271 } 272 } 273 } 274 275 memset(&args, 0, sizeof(args)); 276 277 args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0); 278 args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK; 279 switch (pll_id) { 280 case ATOM_PPLL1: 281 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL; 282 break; 283 case ATOM_PPLL2: 284 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL; 285 break; 286 case ATOM_DCPLL: 287 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL; 288 break; 289 case ATOM_PPLL_INVALID: 290 return; 291 } 292 args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); 293 args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step); 294 args.v3.ucEnable = enable; 295 296 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 297 } 298 299 union adjust_pixel_clock { 300 ADJUST_DISPLAY_PLL_PS_ALLOCATION v1; 301 ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3; 302 }; 303 304 static u32 amdgpu_atombios_crtc_adjust_pll(struct drm_crtc *crtc, 305 struct drm_display_mode *mode) 306 { 307 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 308 struct drm_device *dev = crtc->dev; 309 struct amdgpu_device *adev = dev->dev_private; 310 struct drm_encoder *encoder = amdgpu_crtc->encoder; 311 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 312 struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder); 313 u32 adjusted_clock = mode->clock; 314 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(encoder); 315 u32 dp_clock = mode->clock; 316 u32 clock = mode->clock; 317 int bpc = amdgpu_crtc->bpc; 318 bool is_duallink = amdgpu_dig_monitor_is_duallink(encoder, mode->clock); 319 union adjust_pixel_clock args; 320 u8 frev, crev; 321 int index; 322 323 amdgpu_crtc->pll_flags = AMDGPU_PLL_USE_FRAC_FB_DIV; 324 325 if ((amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || 326 (amdgpu_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) { 327 if (connector) { 328 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 329 struct amdgpu_connector_atom_dig *dig_connector = 330 amdgpu_connector->con_priv; 331 332 dp_clock = dig_connector->dp_clock; 333 } 334 } 335 336 /* use recommended ref_div for ss */ 337 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { 338 if (amdgpu_crtc->ss_enabled) { 339 if (amdgpu_crtc->ss.refdiv) { 340 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_REF_DIV; 341 amdgpu_crtc->pll_reference_div = amdgpu_crtc->ss.refdiv; 342 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 343 } 344 } 345 } 346 347 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */ 348 if (amdgpu_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1) 349 adjusted_clock = mode->clock * 2; 350 if (amdgpu_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) 351 amdgpu_crtc->pll_flags |= AMDGPU_PLL_PREFER_CLOSEST_LOWER; 352 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) 353 amdgpu_crtc->pll_flags |= AMDGPU_PLL_IS_LCD; 354 355 356 /* adjust pll for deep color modes */ 357 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 358 switch (bpc) { 359 case 8: 360 default: 361 break; 362 case 10: 363 clock = (clock * 5) / 4; 364 break; 365 case 12: 366 clock = (clock * 3) / 2; 367 break; 368 case 16: 369 clock = clock * 2; 370 break; 371 } 372 } 373 374 /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock 375 * accordingly based on the encoder/transmitter to work around 376 * special hw requirements. 377 */ 378 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll); 379 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 380 &crev)) 381 return adjusted_clock; 382 383 memset(&args, 0, sizeof(args)); 384 385 switch (frev) { 386 case 1: 387 switch (crev) { 388 case 1: 389 case 2: 390 args.v1.usPixelClock = cpu_to_le16(clock / 10); 391 args.v1.ucTransmitterID = amdgpu_encoder->encoder_id; 392 args.v1.ucEncodeMode = encoder_mode; 393 if (amdgpu_crtc->ss_enabled && amdgpu_crtc->ss.percentage) 394 args.v1.ucConfig |= 395 ADJUST_DISPLAY_CONFIG_SS_ENABLE; 396 397 amdgpu_atom_execute_table(adev->mode_info.atom_context, 398 index, (uint32_t *)&args); 399 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10; 400 break; 401 case 3: 402 args.v3.sInput.usPixelClock = cpu_to_le16(clock / 10); 403 args.v3.sInput.ucTransmitterID = amdgpu_encoder->encoder_id; 404 args.v3.sInput.ucEncodeMode = encoder_mode; 405 args.v3.sInput.ucDispPllConfig = 0; 406 if (amdgpu_crtc->ss_enabled && amdgpu_crtc->ss.percentage) 407 args.v3.sInput.ucDispPllConfig |= 408 DISPPLL_CONFIG_SS_ENABLE; 409 if (ENCODER_MODE_IS_DP(encoder_mode)) { 410 args.v3.sInput.ucDispPllConfig |= 411 DISPPLL_CONFIG_COHERENT_MODE; 412 /* 16200 or 27000 */ 413 args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10); 414 } else if (amdgpu_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) { 415 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; 416 if (dig->coherent_mode) 417 args.v3.sInput.ucDispPllConfig |= 418 DISPPLL_CONFIG_COHERENT_MODE; 419 if (is_duallink) 420 args.v3.sInput.ucDispPllConfig |= 421 DISPPLL_CONFIG_DUAL_LINK; 422 } 423 if (amdgpu_encoder_get_dp_bridge_encoder_id(encoder) != 424 ENCODER_OBJECT_ID_NONE) 425 args.v3.sInput.ucExtTransmitterID = 426 amdgpu_encoder_get_dp_bridge_encoder_id(encoder); 427 else 428 args.v3.sInput.ucExtTransmitterID = 0; 429 430 amdgpu_atom_execute_table(adev->mode_info.atom_context, 431 index, (uint32_t *)&args); 432 adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10; 433 if (args.v3.sOutput.ucRefDiv) { 434 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 435 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_REF_DIV; 436 amdgpu_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv; 437 } 438 if (args.v3.sOutput.ucPostDiv) { 439 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_FRAC_FB_DIV; 440 amdgpu_crtc->pll_flags |= AMDGPU_PLL_USE_POST_DIV; 441 amdgpu_crtc->pll_post_div = args.v3.sOutput.ucPostDiv; 442 } 443 break; 444 default: 445 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 446 return adjusted_clock; 447 } 448 break; 449 default: 450 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 451 return adjusted_clock; 452 } 453 454 return adjusted_clock; 455 } 456 457 union set_pixel_clock { 458 SET_PIXEL_CLOCK_PS_ALLOCATION base; 459 PIXEL_CLOCK_PARAMETERS v1; 460 PIXEL_CLOCK_PARAMETERS_V2 v2; 461 PIXEL_CLOCK_PARAMETERS_V3 v3; 462 PIXEL_CLOCK_PARAMETERS_V5 v5; 463 PIXEL_CLOCK_PARAMETERS_V6 v6; 464 PIXEL_CLOCK_PARAMETERS_V7 v7; 465 }; 466 467 /* on DCE5, make sure the voltage is high enough to support the 468 * required disp clk. 469 */ 470 void amdgpu_atombios_crtc_set_disp_eng_pll(struct amdgpu_device *adev, 471 u32 dispclk) 472 { 473 u8 frev, crev; 474 int index; 475 union set_pixel_clock args; 476 477 memset(&args, 0, sizeof(args)); 478 479 index = GetIndexIntoMasterTable(COMMAND, SetPixelClock); 480 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 481 &crev)) 482 return; 483 484 switch (frev) { 485 case 1: 486 switch (crev) { 487 case 5: 488 /* if the default dcpll clock is specified, 489 * SetPixelClock provides the dividers 490 */ 491 args.v5.ucCRTC = ATOM_CRTC_INVALID; 492 args.v5.usPixelClock = cpu_to_le16(dispclk); 493 args.v5.ucPpll = ATOM_DCPLL; 494 break; 495 case 6: 496 /* if the default dcpll clock is specified, 497 * SetPixelClock provides the dividers 498 */ 499 args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk); 500 args.v6.ucPpll = ATOM_EXT_PLL1; 501 break; 502 default: 503 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 504 return; 505 } 506 break; 507 default: 508 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 509 return; 510 } 511 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 512 } 513 514 union set_dce_clock { 515 SET_DCE_CLOCK_PS_ALLOCATION_V1_1 v1_1; 516 SET_DCE_CLOCK_PS_ALLOCATION_V2_1 v2_1; 517 }; 518 519 u32 amdgpu_atombios_crtc_set_dce_clock(struct amdgpu_device *adev, 520 u32 freq, u8 clk_type, u8 clk_src) 521 { 522 u8 frev, crev; 523 int index; 524 union set_dce_clock args; 525 u32 ret_freq = 0; 526 527 memset(&args, 0, sizeof(args)); 528 529 index = GetIndexIntoMasterTable(COMMAND, SetDCEClock); 530 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 531 &crev)) 532 return 0; 533 534 switch (frev) { 535 case 2: 536 switch (crev) { 537 case 1: 538 args.v2_1.asParam.ulDCEClkFreq = cpu_to_le32(freq); /* 10kHz units */ 539 args.v2_1.asParam.ucDCEClkType = clk_type; 540 args.v2_1.asParam.ucDCEClkSrc = clk_src; 541 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 542 ret_freq = le32_to_cpu(args.v2_1.asParam.ulDCEClkFreq) * 10; 543 break; 544 default: 545 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 546 return 0; 547 } 548 break; 549 default: 550 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 551 return 0; 552 } 553 554 return ret_freq; 555 } 556 557 static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id) 558 { 559 if (ENCODER_MODE_IS_DP(encoder_mode)) { 560 if (pll_id < ATOM_EXT_PLL1) 561 return true; 562 else 563 return false; 564 } else { 565 return true; 566 } 567 } 568 569 void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc, 570 u32 crtc_id, 571 int pll_id, 572 u32 encoder_mode, 573 u32 encoder_id, 574 u32 clock, 575 u32 ref_div, 576 u32 fb_div, 577 u32 frac_fb_div, 578 u32 post_div, 579 int bpc, 580 bool ss_enabled, 581 struct amdgpu_atom_ss *ss) 582 { 583 struct drm_device *dev = crtc->dev; 584 struct amdgpu_device *adev = dev->dev_private; 585 u8 frev, crev; 586 int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock); 587 union set_pixel_clock args; 588 589 memset(&args, 0, sizeof(args)); 590 591 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, 592 &crev)) 593 return; 594 595 switch (frev) { 596 case 1: 597 switch (crev) { 598 case 1: 599 if (clock == ATOM_DISABLE) 600 return; 601 args.v1.usPixelClock = cpu_to_le16(clock / 10); 602 args.v1.usRefDiv = cpu_to_le16(ref_div); 603 args.v1.usFbDiv = cpu_to_le16(fb_div); 604 args.v1.ucFracFbDiv = frac_fb_div; 605 args.v1.ucPostDiv = post_div; 606 args.v1.ucPpll = pll_id; 607 args.v1.ucCRTC = crtc_id; 608 args.v1.ucRefDivSrc = 1; 609 break; 610 case 2: 611 args.v2.usPixelClock = cpu_to_le16(clock / 10); 612 args.v2.usRefDiv = cpu_to_le16(ref_div); 613 args.v2.usFbDiv = cpu_to_le16(fb_div); 614 args.v2.ucFracFbDiv = frac_fb_div; 615 args.v2.ucPostDiv = post_div; 616 args.v2.ucPpll = pll_id; 617 args.v2.ucCRTC = crtc_id; 618 args.v2.ucRefDivSrc = 1; 619 break; 620 case 3: 621 args.v3.usPixelClock = cpu_to_le16(clock / 10); 622 args.v3.usRefDiv = cpu_to_le16(ref_div); 623 args.v3.usFbDiv = cpu_to_le16(fb_div); 624 args.v3.ucFracFbDiv = frac_fb_div; 625 args.v3.ucPostDiv = post_div; 626 args.v3.ucPpll = pll_id; 627 if (crtc_id == ATOM_CRTC2) 628 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2; 629 else 630 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1; 631 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) 632 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC; 633 args.v3.ucTransmitterId = encoder_id; 634 args.v3.ucEncoderMode = encoder_mode; 635 break; 636 case 5: 637 args.v5.ucCRTC = crtc_id; 638 args.v5.usPixelClock = cpu_to_le16(clock / 10); 639 args.v5.ucRefDiv = ref_div; 640 args.v5.usFbDiv = cpu_to_le16(fb_div); 641 args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000); 642 args.v5.ucPostDiv = post_div; 643 args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */ 644 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) && 645 (pll_id < ATOM_EXT_PLL1)) 646 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC; 647 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 648 switch (bpc) { 649 case 8: 650 default: 651 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP; 652 break; 653 case 10: 654 /* yes this is correct, the atom define is wrong */ 655 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP; 656 break; 657 case 12: 658 /* yes this is correct, the atom define is wrong */ 659 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP; 660 break; 661 } 662 } 663 args.v5.ucTransmitterID = encoder_id; 664 args.v5.ucEncoderMode = encoder_mode; 665 args.v5.ucPpll = pll_id; 666 break; 667 case 6: 668 args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10); 669 args.v6.ucRefDiv = ref_div; 670 args.v6.usFbDiv = cpu_to_le16(fb_div); 671 args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000); 672 args.v6.ucPostDiv = post_div; 673 args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */ 674 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) && 675 (pll_id < ATOM_EXT_PLL1) && 676 !is_pixel_clock_source_from_pll(encoder_mode, pll_id)) 677 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC; 678 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 679 switch (bpc) { 680 case 8: 681 default: 682 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP; 683 break; 684 case 10: 685 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6; 686 break; 687 case 12: 688 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6; 689 break; 690 case 16: 691 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP; 692 break; 693 } 694 } 695 args.v6.ucTransmitterID = encoder_id; 696 args.v6.ucEncoderMode = encoder_mode; 697 args.v6.ucPpll = pll_id; 698 break; 699 case 7: 700 args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */ 701 args.v7.ucMiscInfo = 0; 702 if ((encoder_mode == ATOM_ENCODER_MODE_DVI) && 703 (clock > 165000)) 704 args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN; 705 args.v7.ucCRTC = crtc_id; 706 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) { 707 switch (bpc) { 708 case 8: 709 default: 710 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS; 711 break; 712 case 10: 713 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4; 714 break; 715 case 12: 716 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2; 717 break; 718 case 16: 719 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1; 720 break; 721 } 722 } 723 args.v7.ucTransmitterID = encoder_id; 724 args.v7.ucEncoderMode = encoder_mode; 725 args.v7.ucPpll = pll_id; 726 break; 727 default: 728 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 729 return; 730 } 731 break; 732 default: 733 DRM_ERROR("Unknown table version %d %d\n", frev, crev); 734 return; 735 } 736 737 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args); 738 } 739 740 int amdgpu_atombios_crtc_prepare_pll(struct drm_crtc *crtc, 741 struct drm_display_mode *mode) 742 { 743 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 744 struct drm_device *dev = crtc->dev; 745 struct amdgpu_device *adev = dev->dev_private; 746 struct amdgpu_encoder *amdgpu_encoder = 747 to_amdgpu_encoder(amdgpu_crtc->encoder); 748 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder); 749 750 amdgpu_crtc->bpc = 8; 751 amdgpu_crtc->ss_enabled = false; 752 753 if ((amdgpu_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || 754 (amdgpu_encoder_get_dp_bridge_encoder_id(amdgpu_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) { 755 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; 756 struct drm_connector *connector = 757 amdgpu_get_connector_for_encoder(amdgpu_crtc->encoder); 758 struct amdgpu_connector *amdgpu_connector = 759 to_amdgpu_connector(connector); 760 struct amdgpu_connector_atom_dig *dig_connector = 761 amdgpu_connector->con_priv; 762 int dp_clock; 763 764 /* Assign mode clock for hdmi deep color max clock limit check */ 765 amdgpu_connector->pixelclock_for_modeset = mode->clock; 766 amdgpu_crtc->bpc = amdgpu_connector_get_monitor_bpc(connector); 767 768 switch (encoder_mode) { 769 case ATOM_ENCODER_MODE_DP_MST: 770 case ATOM_ENCODER_MODE_DP: 771 /* DP/eDP */ 772 dp_clock = dig_connector->dp_clock / 10; 773 amdgpu_crtc->ss_enabled = 774 amdgpu_atombios_get_asic_ss_info(adev, &amdgpu_crtc->ss, 775 ASIC_INTERNAL_SS_ON_DP, 776 dp_clock); 777 break; 778 case ATOM_ENCODER_MODE_LVDS: 779 amdgpu_crtc->ss_enabled = 780 amdgpu_atombios_get_asic_ss_info(adev, 781 &amdgpu_crtc->ss, 782 dig->lcd_ss_id, 783 mode->clock / 10); 784 break; 785 case ATOM_ENCODER_MODE_DVI: 786 amdgpu_crtc->ss_enabled = 787 amdgpu_atombios_get_asic_ss_info(adev, 788 &amdgpu_crtc->ss, 789 ASIC_INTERNAL_SS_ON_TMDS, 790 mode->clock / 10); 791 break; 792 case ATOM_ENCODER_MODE_HDMI: 793 amdgpu_crtc->ss_enabled = 794 amdgpu_atombios_get_asic_ss_info(adev, 795 &amdgpu_crtc->ss, 796 ASIC_INTERNAL_SS_ON_HDMI, 797 mode->clock / 10); 798 break; 799 default: 800 break; 801 } 802 } 803 804 /* adjust pixel clock as needed */ 805 amdgpu_crtc->adjusted_clock = amdgpu_atombios_crtc_adjust_pll(crtc, mode); 806 807 return 0; 808 } 809 810 void amdgpu_atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) 811 { 812 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 813 struct drm_device *dev = crtc->dev; 814 struct amdgpu_device *adev = dev->dev_private; 815 struct amdgpu_encoder *amdgpu_encoder = 816 to_amdgpu_encoder(amdgpu_crtc->encoder); 817 u32 pll_clock = mode->clock; 818 u32 clock = mode->clock; 819 u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0; 820 struct amdgpu_pll *pll; 821 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder); 822 823 /* pass the actual clock to amdgpu_atombios_crtc_program_pll for HDMI */ 824 if ((encoder_mode == ATOM_ENCODER_MODE_HDMI) && 825 (amdgpu_crtc->bpc > 8)) 826 clock = amdgpu_crtc->adjusted_clock; 827 828 switch (amdgpu_crtc->pll_id) { 829 case ATOM_PPLL1: 830 pll = &adev->clock.ppll[0]; 831 break; 832 case ATOM_PPLL2: 833 pll = &adev->clock.ppll[1]; 834 break; 835 case ATOM_PPLL0: 836 case ATOM_PPLL_INVALID: 837 default: 838 pll = &adev->clock.ppll[2]; 839 break; 840 } 841 842 /* update pll params */ 843 pll->flags = amdgpu_crtc->pll_flags; 844 pll->reference_div = amdgpu_crtc->pll_reference_div; 845 pll->post_div = amdgpu_crtc->pll_post_div; 846 847 amdgpu_pll_compute(pll, amdgpu_crtc->adjusted_clock, &pll_clock, 848 &fb_div, &frac_fb_div, &ref_div, &post_div); 849 850 amdgpu_atombios_crtc_program_ss(adev, ATOM_DISABLE, amdgpu_crtc->pll_id, 851 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss); 852 853 amdgpu_atombios_crtc_program_pll(crtc, amdgpu_crtc->crtc_id, amdgpu_crtc->pll_id, 854 encoder_mode, amdgpu_encoder->encoder_id, clock, 855 ref_div, fb_div, frac_fb_div, post_div, 856 amdgpu_crtc->bpc, amdgpu_crtc->ss_enabled, &amdgpu_crtc->ss); 857 858 if (amdgpu_crtc->ss_enabled) { 859 /* calculate ss amount and step size */ 860 u32 step_size; 861 u32 amount = (((fb_div * 10) + frac_fb_div) * 862 (u32)amdgpu_crtc->ss.percentage) / 863 (100 * (u32)amdgpu_crtc->ss.percentage_divider); 864 amdgpu_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK; 865 amdgpu_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) & 866 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK; 867 if (amdgpu_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD) 868 step_size = (4 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) / 869 (125 * 25 * pll->reference_freq / 100); 870 else 871 step_size = (2 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) / 872 (125 * 25 * pll->reference_freq / 100); 873 amdgpu_crtc->ss.step = step_size; 874 875 amdgpu_atombios_crtc_program_ss(adev, ATOM_ENABLE, amdgpu_crtc->pll_id, 876 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss); 877 } 878 } 879 880