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