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
27#include <drm/amdgpu_drm.h>
28#include <drm/drm_fixed.h>
29#include "amdgpu.h"
30#include "atom.h"
31#include "atom-bits.h"
32#include "atombios_encoders.h"
33#include "atombios_crtc.h"
34#include "amdgpu_atombios.h"
35#include "amdgpu_pll.h"
36#include "amdgpu_connectors.h"
37
38void 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 = drm_to_adev(ddev: dev);
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
83void amdgpu_atombios_crtc_scaler_setup(struct drm_crtc *crtc)
84{
85 struct drm_device *dev = crtc->dev;
86 struct amdgpu_device *adev = drm_to_adev(ddev: dev);
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
112void 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 = drm_to_adev(ddev: dev);
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
129void 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 = drm_to_adev(ddev: dev);
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
145void 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 = drm_to_adev(ddev: dev);
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
161void 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 = drm_to_adev(ddev: dev);
166 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
167 ENABLE_DISP_POWER_GATING_PS_ALLOCATION 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
177void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev)
178{
179 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
180 ENABLE_DISP_POWER_GATING_PS_ALLOCATION 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
189void 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 = drm_to_adev(ddev: dev);
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
234union 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
240static 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(s: &args, c: 0, n: 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
299union adjust_pixel_clock {
300 ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
301 ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
302};
303
304static 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 = drm_to_adev(ddev: dev);
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, pixel_clock: 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(s: &args, c: 0, n: 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
457union 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 */
470void 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(s: &args, c: 0, n: 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 if (adev->asic_type == CHIP_TAHITI ||
501 adev->asic_type == CHIP_PITCAIRN ||
502 adev->asic_type == CHIP_VERDE ||
503 adev->asic_type == CHIP_OLAND)
504 args.v6.ucPpll = ATOM_PPLL0;
505 else
506 args.v6.ucPpll = ATOM_EXT_PLL1;
507 break;
508 default:
509 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
510 return;
511 }
512 break;
513 default:
514 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
515 return;
516 }
517 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
518}
519
520union set_dce_clock {
521 SET_DCE_CLOCK_PS_ALLOCATION_V1_1 v1_1;
522 SET_DCE_CLOCK_PS_ALLOCATION_V2_1 v2_1;
523};
524
525u32 amdgpu_atombios_crtc_set_dce_clock(struct amdgpu_device *adev,
526 u32 freq, u8 clk_type, u8 clk_src)
527{
528 u8 frev, crev;
529 int index;
530 union set_dce_clock args;
531 u32 ret_freq = 0;
532
533 memset(s: &args, c: 0, n: sizeof(args));
534
535 index = GetIndexIntoMasterTable(COMMAND, SetDCEClock);
536 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev,
537 &crev))
538 return 0;
539
540 switch (frev) {
541 case 2:
542 switch (crev) {
543 case 1:
544 args.v2_1.asParam.ulDCEClkFreq = cpu_to_le32(freq); /* 10kHz units */
545 args.v2_1.asParam.ucDCEClkType = clk_type;
546 args.v2_1.asParam.ucDCEClkSrc = clk_src;
547 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
548 ret_freq = le32_to_cpu(args.v2_1.asParam.ulDCEClkFreq) * 10;
549 break;
550 default:
551 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
552 return 0;
553 }
554 break;
555 default:
556 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
557 return 0;
558 }
559
560 return ret_freq;
561}
562
563static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id)
564{
565 if (ENCODER_MODE_IS_DP(encoder_mode)) {
566 if (pll_id < ATOM_EXT_PLL1)
567 return true;
568 else
569 return false;
570 } else {
571 return true;
572 }
573}
574
575void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
576 u32 crtc_id,
577 int pll_id,
578 u32 encoder_mode,
579 u32 encoder_id,
580 u32 clock,
581 u32 ref_div,
582 u32 fb_div,
583 u32 frac_fb_div,
584 u32 post_div,
585 int bpc,
586 bool ss_enabled,
587 struct amdgpu_atom_ss *ss)
588{
589 struct drm_device *dev = crtc->dev;
590 struct amdgpu_device *adev = drm_to_adev(ddev: dev);
591 u8 frev, crev;
592 int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
593 union set_pixel_clock args;
594
595 memset(s: &args, c: 0, n: sizeof(args));
596
597 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev,
598 &crev))
599 return;
600
601 switch (frev) {
602 case 1:
603 switch (crev) {
604 case 1:
605 if (clock == ATOM_DISABLE)
606 return;
607 args.v1.usPixelClock = cpu_to_le16(clock / 10);
608 args.v1.usRefDiv = cpu_to_le16(ref_div);
609 args.v1.usFbDiv = cpu_to_le16(fb_div);
610 args.v1.ucFracFbDiv = frac_fb_div;
611 args.v1.ucPostDiv = post_div;
612 args.v1.ucPpll = pll_id;
613 args.v1.ucCRTC = crtc_id;
614 args.v1.ucRefDivSrc = 1;
615 break;
616 case 2:
617 args.v2.usPixelClock = cpu_to_le16(clock / 10);
618 args.v2.usRefDiv = cpu_to_le16(ref_div);
619 args.v2.usFbDiv = cpu_to_le16(fb_div);
620 args.v2.ucFracFbDiv = frac_fb_div;
621 args.v2.ucPostDiv = post_div;
622 args.v2.ucPpll = pll_id;
623 args.v2.ucCRTC = crtc_id;
624 args.v2.ucRefDivSrc = 1;
625 break;
626 case 3:
627 args.v3.usPixelClock = cpu_to_le16(clock / 10);
628 args.v3.usRefDiv = cpu_to_le16(ref_div);
629 args.v3.usFbDiv = cpu_to_le16(fb_div);
630 args.v3.ucFracFbDiv = frac_fb_div;
631 args.v3.ucPostDiv = post_div;
632 args.v3.ucPpll = pll_id;
633 if (crtc_id == ATOM_CRTC2)
634 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2;
635 else
636 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1;
637 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
638 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC;
639 args.v3.ucTransmitterId = encoder_id;
640 args.v3.ucEncoderMode = encoder_mode;
641 break;
642 case 5:
643 args.v5.ucCRTC = crtc_id;
644 args.v5.usPixelClock = cpu_to_le16(clock / 10);
645 args.v5.ucRefDiv = ref_div;
646 args.v5.usFbDiv = cpu_to_le16(fb_div);
647 args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
648 args.v5.ucPostDiv = post_div;
649 args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
650 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) &&
651 (pll_id < ATOM_EXT_PLL1))
652 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
653 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
654 switch (bpc) {
655 case 8:
656 default:
657 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
658 break;
659 case 10:
660 /* yes this is correct, the atom define is wrong */
661 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP;
662 break;
663 case 12:
664 /* yes this is correct, the atom define is wrong */
665 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
666 break;
667 }
668 }
669 args.v5.ucTransmitterID = encoder_id;
670 args.v5.ucEncoderMode = encoder_mode;
671 args.v5.ucPpll = pll_id;
672 break;
673 case 6:
674 args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10);
675 args.v6.ucRefDiv = ref_div;
676 args.v6.usFbDiv = cpu_to_le16(fb_div);
677 args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
678 args.v6.ucPostDiv = post_div;
679 args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
680 if ((ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK)) &&
681 (pll_id < ATOM_EXT_PLL1) &&
682 !is_pixel_clock_source_from_pll(encoder_mode, pll_id))
683 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
684 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
685 switch (bpc) {
686 case 8:
687 default:
688 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
689 break;
690 case 10:
691 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6;
692 break;
693 case 12:
694 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6;
695 break;
696 case 16:
697 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
698 break;
699 }
700 }
701 args.v6.ucTransmitterID = encoder_id;
702 args.v6.ucEncoderMode = encoder_mode;
703 args.v6.ucPpll = pll_id;
704 break;
705 case 7:
706 args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */
707 args.v7.ucMiscInfo = 0;
708 if ((encoder_mode == ATOM_ENCODER_MODE_DVI) &&
709 (clock > 165000))
710 args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN;
711 args.v7.ucCRTC = crtc_id;
712 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
713 switch (bpc) {
714 case 8:
715 default:
716 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS;
717 break;
718 case 10:
719 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4;
720 break;
721 case 12:
722 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2;
723 break;
724 case 16:
725 args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1;
726 break;
727 }
728 }
729 args.v7.ucTransmitterID = encoder_id;
730 args.v7.ucEncoderMode = encoder_mode;
731 args.v7.ucPpll = pll_id;
732 break;
733 default:
734 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
735 return;
736 }
737 break;
738 default:
739 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
740 return;
741 }
742
743 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
744}
745
746int amdgpu_atombios_crtc_prepare_pll(struct drm_crtc *crtc,
747 struct drm_display_mode *mode)
748{
749 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
750 struct drm_device *dev = crtc->dev;
751 struct amdgpu_device *adev = drm_to_adev(ddev: dev);
752 struct amdgpu_encoder *amdgpu_encoder =
753 to_amdgpu_encoder(amdgpu_crtc->encoder);
754 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(encoder: amdgpu_crtc->encoder);
755
756 amdgpu_crtc->bpc = 8;
757 amdgpu_crtc->ss_enabled = false;
758
759 if ((amdgpu_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
760 (amdgpu_encoder_get_dp_bridge_encoder_id(amdgpu_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) {
761 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
762 struct drm_connector *connector =
763 amdgpu_get_connector_for_encoder(encoder: amdgpu_crtc->encoder);
764 struct amdgpu_connector *amdgpu_connector =
765 to_amdgpu_connector(connector);
766 struct amdgpu_connector_atom_dig *dig_connector =
767 amdgpu_connector->con_priv;
768 int dp_clock;
769
770 /* Assign mode clock for hdmi deep color max clock limit check */
771 amdgpu_connector->pixelclock_for_modeset = mode->clock;
772 amdgpu_crtc->bpc = amdgpu_connector_get_monitor_bpc(connector);
773
774 switch (encoder_mode) {
775 case ATOM_ENCODER_MODE_DP_MST:
776 case ATOM_ENCODER_MODE_DP:
777 /* DP/eDP */
778 dp_clock = dig_connector->dp_clock / 10;
779 amdgpu_crtc->ss_enabled =
780 amdgpu_atombios_get_asic_ss_info(adev, &amdgpu_crtc->ss,
781 ASIC_INTERNAL_SS_ON_DP,
782 dp_clock);
783 break;
784 case ATOM_ENCODER_MODE_LVDS:
785 amdgpu_crtc->ss_enabled =
786 amdgpu_atombios_get_asic_ss_info(adev,
787 ss: &amdgpu_crtc->ss,
788 id: dig->lcd_ss_id,
789 clock: mode->clock / 10);
790 break;
791 case ATOM_ENCODER_MODE_DVI:
792 amdgpu_crtc->ss_enabled =
793 amdgpu_atombios_get_asic_ss_info(adev,
794 &amdgpu_crtc->ss,
795 ASIC_INTERNAL_SS_ON_TMDS,
796 mode->clock / 10);
797 break;
798 case ATOM_ENCODER_MODE_HDMI:
799 amdgpu_crtc->ss_enabled =
800 amdgpu_atombios_get_asic_ss_info(adev,
801 &amdgpu_crtc->ss,
802 ASIC_INTERNAL_SS_ON_HDMI,
803 mode->clock / 10);
804 break;
805 default:
806 break;
807 }
808 }
809
810 /* adjust pixel clock as needed */
811 amdgpu_crtc->adjusted_clock = amdgpu_atombios_crtc_adjust_pll(crtc, mode);
812
813 return 0;
814}
815
816void amdgpu_atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
817{
818 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
819 struct drm_device *dev = crtc->dev;
820 struct amdgpu_device *adev = drm_to_adev(ddev: dev);
821 struct amdgpu_encoder *amdgpu_encoder =
822 to_amdgpu_encoder(amdgpu_crtc->encoder);
823 u32 pll_clock = mode->clock;
824 u32 clock = mode->clock;
825 u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
826 struct amdgpu_pll *pll;
827 int encoder_mode = amdgpu_atombios_encoder_get_encoder_mode(encoder: amdgpu_crtc->encoder);
828
829 /* pass the actual clock to amdgpu_atombios_crtc_program_pll for HDMI */
830 if ((encoder_mode == ATOM_ENCODER_MODE_HDMI) &&
831 (amdgpu_crtc->bpc > 8))
832 clock = amdgpu_crtc->adjusted_clock;
833
834 switch (amdgpu_crtc->pll_id) {
835 case ATOM_PPLL1:
836 pll = &adev->clock.ppll[0];
837 break;
838 case ATOM_PPLL2:
839 pll = &adev->clock.ppll[1];
840 break;
841 case ATOM_PPLL0:
842 case ATOM_PPLL_INVALID:
843 default:
844 pll = &adev->clock.ppll[2];
845 break;
846 }
847
848 /* update pll params */
849 pll->flags = amdgpu_crtc->pll_flags;
850 pll->reference_div = amdgpu_crtc->pll_reference_div;
851 pll->post_div = amdgpu_crtc->pll_post_div;
852
853 amdgpu_pll_compute(adev, pll, amdgpu_crtc->adjusted_clock, &pll_clock,
854 &fb_div, &frac_fb_div, &ref_div, &post_div);
855
856 amdgpu_atombios_crtc_program_ss(adev, ATOM_DISABLE, amdgpu_crtc->pll_id,
857 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss);
858
859 amdgpu_atombios_crtc_program_pll(crtc, amdgpu_crtc->crtc_id, amdgpu_crtc->pll_id,
860 encoder_mode, amdgpu_encoder->encoder_id, clock,
861 ref_div, fb_div, frac_fb_div, post_div,
862 amdgpu_crtc->bpc, amdgpu_crtc->ss_enabled, &amdgpu_crtc->ss);
863
864 if (amdgpu_crtc->ss_enabled) {
865 /* calculate ss amount and step size */
866 u32 step_size;
867 u32 amount = (((fb_div * 10) + frac_fb_div) *
868 (u32)amdgpu_crtc->ss.percentage) /
869 (100 * (u32)amdgpu_crtc->ss.percentage_divider);
870 amdgpu_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK;
871 amdgpu_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) &
872 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK;
873 if (amdgpu_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD)
874 step_size = (4 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) /
875 (125 * 25 * pll->reference_freq / 100);
876 else
877 step_size = (2 * amount * ref_div * ((u32)amdgpu_crtc->ss.rate * 2048)) /
878 (125 * 25 * pll->reference_freq / 100);
879 amdgpu_crtc->ss.step = step_size;
880
881 amdgpu_atombios_crtc_program_ss(adev, ATOM_ENABLE, amdgpu_crtc->pll_id,
882 amdgpu_crtc->crtc_id, &amdgpu_crtc->ss);
883 }
884}
885
886

source code of linux/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c