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Merge remote-tracking branch 'kspp/for-next/kspp'
[deliverable/linux.git] / drivers / gpu / drm / radeon / atombios_crtc.c
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/drm_fb_helper.h>
29 #include <drm/radeon_drm.h>
30 #include <drm/drm_fixed.h>
31 #include "radeon.h"
32 #include "atom.h"
33 #include "atom-bits.h"
34
35 static void atombios_overscan_setup(struct drm_crtc *crtc,
36 struct drm_display_mode *mode,
37 struct drm_display_mode *adjusted_mode)
38 {
39 struct drm_device *dev = crtc->dev;
40 struct radeon_device *rdev = dev->dev_private;
41 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
42 SET_CRTC_OVERSCAN_PS_ALLOCATION args;
43 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
44 int a1, a2;
45
46 memset(&args, 0, sizeof(args));
47
48 args.ucCRTC = radeon_crtc->crtc_id;
49
50 switch (radeon_crtc->rmx_type) {
51 case RMX_CENTER:
52 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
53 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
54 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
55 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
56 break;
57 case RMX_ASPECT:
58 a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
59 a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
60
61 if (a1 > a2) {
62 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
63 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
64 } else if (a2 > a1) {
65 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
66 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
67 }
68 break;
69 case RMX_FULL:
70 default:
71 args.usOverscanRight = cpu_to_le16(radeon_crtc->h_border);
72 args.usOverscanLeft = cpu_to_le16(radeon_crtc->h_border);
73 args.usOverscanBottom = cpu_to_le16(radeon_crtc->v_border);
74 args.usOverscanTop = cpu_to_le16(radeon_crtc->v_border);
75 break;
76 }
77 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
78 }
79
80 static void atombios_scaler_setup(struct drm_crtc *crtc)
81 {
82 struct drm_device *dev = crtc->dev;
83 struct radeon_device *rdev = dev->dev_private;
84 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
85 ENABLE_SCALER_PS_ALLOCATION args;
86 int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
87 struct radeon_encoder *radeon_encoder =
88 to_radeon_encoder(radeon_crtc->encoder);
89 /* fixme - fill in enc_priv for atom dac */
90 enum radeon_tv_std tv_std = TV_STD_NTSC;
91 bool is_tv = false, is_cv = false;
92
93 if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
94 return;
95
96 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
97 struct radeon_encoder_atom_dac *tv_dac = radeon_encoder->enc_priv;
98 tv_std = tv_dac->tv_std;
99 is_tv = true;
100 }
101
102 memset(&args, 0, sizeof(args));
103
104 args.ucScaler = radeon_crtc->crtc_id;
105
106 if (is_tv) {
107 switch (tv_std) {
108 case TV_STD_NTSC:
109 default:
110 args.ucTVStandard = ATOM_TV_NTSC;
111 break;
112 case TV_STD_PAL:
113 args.ucTVStandard = ATOM_TV_PAL;
114 break;
115 case TV_STD_PAL_M:
116 args.ucTVStandard = ATOM_TV_PALM;
117 break;
118 case TV_STD_PAL_60:
119 args.ucTVStandard = ATOM_TV_PAL60;
120 break;
121 case TV_STD_NTSC_J:
122 args.ucTVStandard = ATOM_TV_NTSCJ;
123 break;
124 case TV_STD_SCART_PAL:
125 args.ucTVStandard = ATOM_TV_PAL; /* ??? */
126 break;
127 case TV_STD_SECAM:
128 args.ucTVStandard = ATOM_TV_SECAM;
129 break;
130 case TV_STD_PAL_CN:
131 args.ucTVStandard = ATOM_TV_PALCN;
132 break;
133 }
134 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
135 } else if (is_cv) {
136 args.ucTVStandard = ATOM_TV_CV;
137 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
138 } else {
139 switch (radeon_crtc->rmx_type) {
140 case RMX_FULL:
141 args.ucEnable = ATOM_SCALER_EXPANSION;
142 break;
143 case RMX_CENTER:
144 args.ucEnable = ATOM_SCALER_CENTER;
145 break;
146 case RMX_ASPECT:
147 args.ucEnable = ATOM_SCALER_EXPANSION;
148 break;
149 default:
150 if (ASIC_IS_AVIVO(rdev))
151 args.ucEnable = ATOM_SCALER_DISABLE;
152 else
153 args.ucEnable = ATOM_SCALER_CENTER;
154 break;
155 }
156 }
157 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
158 if ((is_tv || is_cv)
159 && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_R580) {
160 atom_rv515_force_tv_scaler(rdev, radeon_crtc);
161 }
162 }
163
164 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
165 {
166 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
167 struct drm_device *dev = crtc->dev;
168 struct radeon_device *rdev = dev->dev_private;
169 int index =
170 GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters);
171 ENABLE_CRTC_PS_ALLOCATION args;
172
173 memset(&args, 0, sizeof(args));
174
175 args.ucCRTC = radeon_crtc->crtc_id;
176 args.ucEnable = lock;
177
178 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
179 }
180
181 static void atombios_enable_crtc(struct drm_crtc *crtc, int state)
182 {
183 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
184 struct drm_device *dev = crtc->dev;
185 struct radeon_device *rdev = dev->dev_private;
186 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC);
187 ENABLE_CRTC_PS_ALLOCATION args;
188
189 memset(&args, 0, sizeof(args));
190
191 args.ucCRTC = radeon_crtc->crtc_id;
192 args.ucEnable = state;
193
194 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
195 }
196
197 static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
198 {
199 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
200 struct drm_device *dev = crtc->dev;
201 struct radeon_device *rdev = dev->dev_private;
202 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTCMemReq);
203 ENABLE_CRTC_PS_ALLOCATION args;
204
205 memset(&args, 0, sizeof(args));
206
207 args.ucCRTC = radeon_crtc->crtc_id;
208 args.ucEnable = state;
209
210 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
211 }
212
213 static const u32 vga_control_regs[6] =
214 {
215 AVIVO_D1VGA_CONTROL,
216 AVIVO_D2VGA_CONTROL,
217 EVERGREEN_D3VGA_CONTROL,
218 EVERGREEN_D4VGA_CONTROL,
219 EVERGREEN_D5VGA_CONTROL,
220 EVERGREEN_D6VGA_CONTROL,
221 };
222
223 static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
224 {
225 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
226 struct drm_device *dev = crtc->dev;
227 struct radeon_device *rdev = dev->dev_private;
228 int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
229 BLANK_CRTC_PS_ALLOCATION args;
230 u32 vga_control = 0;
231
232 memset(&args, 0, sizeof(args));
233
234 if (ASIC_IS_DCE8(rdev)) {
235 vga_control = RREG32(vga_control_regs[radeon_crtc->crtc_id]);
236 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control | 1);
237 }
238
239 args.ucCRTC = radeon_crtc->crtc_id;
240 args.ucBlanking = state;
241
242 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
243
244 if (ASIC_IS_DCE8(rdev)) {
245 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control);
246 }
247 }
248
249 static void atombios_powergate_crtc(struct drm_crtc *crtc, int state)
250 {
251 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
252 struct drm_device *dev = crtc->dev;
253 struct radeon_device *rdev = dev->dev_private;
254 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
255 ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
256
257 memset(&args, 0, sizeof(args));
258
259 args.ucDispPipeId = radeon_crtc->crtc_id;
260 args.ucEnable = state;
261
262 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
263 }
264
265 void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
266 {
267 struct drm_device *dev = crtc->dev;
268 struct radeon_device *rdev = dev->dev_private;
269 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
270
271 switch (mode) {
272 case DRM_MODE_DPMS_ON:
273 radeon_crtc->enabled = true;
274 atombios_enable_crtc(crtc, ATOM_ENABLE);
275 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
276 atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
277 atombios_blank_crtc(crtc, ATOM_DISABLE);
278 if (dev->num_crtcs > radeon_crtc->crtc_id)
279 drm_crtc_vblank_on(crtc);
280 radeon_crtc_load_lut(crtc);
281 break;
282 case DRM_MODE_DPMS_STANDBY:
283 case DRM_MODE_DPMS_SUSPEND:
284 case DRM_MODE_DPMS_OFF:
285 if (dev->num_crtcs > radeon_crtc->crtc_id)
286 drm_crtc_vblank_off(crtc);
287 if (radeon_crtc->enabled)
288 atombios_blank_crtc(crtc, ATOM_ENABLE);
289 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
290 atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
291 atombios_enable_crtc(crtc, ATOM_DISABLE);
292 radeon_crtc->enabled = false;
293 break;
294 }
295 /* adjust pm to dpms */
296 radeon_pm_compute_clocks(rdev);
297 }
298
299 static void
300 atombios_set_crtc_dtd_timing(struct drm_crtc *crtc,
301 struct drm_display_mode *mode)
302 {
303 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
304 struct drm_device *dev = crtc->dev;
305 struct radeon_device *rdev = dev->dev_private;
306 SET_CRTC_USING_DTD_TIMING_PARAMETERS args;
307 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming);
308 u16 misc = 0;
309
310 memset(&args, 0, sizeof(args));
311 args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (radeon_crtc->h_border * 2));
312 args.usH_Blanking_Time =
313 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (radeon_crtc->h_border * 2));
314 args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (radeon_crtc->v_border * 2));
315 args.usV_Blanking_Time =
316 cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (radeon_crtc->v_border * 2));
317 args.usH_SyncOffset =
318 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + radeon_crtc->h_border);
319 args.usH_SyncWidth =
320 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
321 args.usV_SyncOffset =
322 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + radeon_crtc->v_border);
323 args.usV_SyncWidth =
324 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
325 args.ucH_Border = radeon_crtc->h_border;
326 args.ucV_Border = radeon_crtc->v_border;
327
328 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
329 misc |= ATOM_VSYNC_POLARITY;
330 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
331 misc |= ATOM_HSYNC_POLARITY;
332 if (mode->flags & DRM_MODE_FLAG_CSYNC)
333 misc |= ATOM_COMPOSITESYNC;
334 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
335 misc |= ATOM_INTERLACE;
336 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
337 misc |= ATOM_DOUBLE_CLOCK_MODE;
338 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
339 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
340
341 args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
342 args.ucCRTC = radeon_crtc->crtc_id;
343
344 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
345 }
346
347 static void atombios_crtc_set_timing(struct drm_crtc *crtc,
348 struct drm_display_mode *mode)
349 {
350 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
351 struct drm_device *dev = crtc->dev;
352 struct radeon_device *rdev = dev->dev_private;
353 SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION args;
354 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_Timing);
355 u16 misc = 0;
356
357 memset(&args, 0, sizeof(args));
358 args.usH_Total = cpu_to_le16(mode->crtc_htotal);
359 args.usH_Disp = cpu_to_le16(mode->crtc_hdisplay);
360 args.usH_SyncStart = cpu_to_le16(mode->crtc_hsync_start);
361 args.usH_SyncWidth =
362 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
363 args.usV_Total = cpu_to_le16(mode->crtc_vtotal);
364 args.usV_Disp = cpu_to_le16(mode->crtc_vdisplay);
365 args.usV_SyncStart = cpu_to_le16(mode->crtc_vsync_start);
366 args.usV_SyncWidth =
367 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
368
369 args.ucOverscanRight = radeon_crtc->h_border;
370 args.ucOverscanLeft = radeon_crtc->h_border;
371 args.ucOverscanBottom = radeon_crtc->v_border;
372 args.ucOverscanTop = radeon_crtc->v_border;
373
374 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
375 misc |= ATOM_VSYNC_POLARITY;
376 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
377 misc |= ATOM_HSYNC_POLARITY;
378 if (mode->flags & DRM_MODE_FLAG_CSYNC)
379 misc |= ATOM_COMPOSITESYNC;
380 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
381 misc |= ATOM_INTERLACE;
382 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
383 misc |= ATOM_DOUBLE_CLOCK_MODE;
384 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
385 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
386
387 args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
388 args.ucCRTC = radeon_crtc->crtc_id;
389
390 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
391 }
392
393 static void atombios_disable_ss(struct radeon_device *rdev, int pll_id)
394 {
395 u32 ss_cntl;
396
397 if (ASIC_IS_DCE4(rdev)) {
398 switch (pll_id) {
399 case ATOM_PPLL1:
400 ss_cntl = RREG32(EVERGREEN_P1PLL_SS_CNTL);
401 ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
402 WREG32(EVERGREEN_P1PLL_SS_CNTL, ss_cntl);
403 break;
404 case ATOM_PPLL2:
405 ss_cntl = RREG32(EVERGREEN_P2PLL_SS_CNTL);
406 ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
407 WREG32(EVERGREEN_P2PLL_SS_CNTL, ss_cntl);
408 break;
409 case ATOM_DCPLL:
410 case ATOM_PPLL_INVALID:
411 return;
412 }
413 } else if (ASIC_IS_AVIVO(rdev)) {
414 switch (pll_id) {
415 case ATOM_PPLL1:
416 ss_cntl = RREG32(AVIVO_P1PLL_INT_SS_CNTL);
417 ss_cntl &= ~1;
418 WREG32(AVIVO_P1PLL_INT_SS_CNTL, ss_cntl);
419 break;
420 case ATOM_PPLL2:
421 ss_cntl = RREG32(AVIVO_P2PLL_INT_SS_CNTL);
422 ss_cntl &= ~1;
423 WREG32(AVIVO_P2PLL_INT_SS_CNTL, ss_cntl);
424 break;
425 case ATOM_DCPLL:
426 case ATOM_PPLL_INVALID:
427 return;
428 }
429 }
430 }
431
432
433 union atom_enable_ss {
434 ENABLE_LVDS_SS_PARAMETERS lvds_ss;
435 ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
436 ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
437 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
438 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
439 };
440
441 static void atombios_crtc_program_ss(struct radeon_device *rdev,
442 int enable,
443 int pll_id,
444 int crtc_id,
445 struct radeon_atom_ss *ss)
446 {
447 unsigned i;
448 int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
449 union atom_enable_ss args;
450
451 if (enable) {
452 /* Don't mess with SS if percentage is 0 or external ss.
453 * SS is already disabled previously, and disabling it
454 * again can cause display problems if the pll is already
455 * programmed.
456 */
457 if (ss->percentage == 0)
458 return;
459 if (ss->type & ATOM_EXTERNAL_SS_MASK)
460 return;
461 } else {
462 for (i = 0; i < rdev->num_crtc; i++) {
463 if (rdev->mode_info.crtcs[i] &&
464 rdev->mode_info.crtcs[i]->enabled &&
465 i != crtc_id &&
466 pll_id == rdev->mode_info.crtcs[i]->pll_id) {
467 /* one other crtc is using this pll don't turn
468 * off spread spectrum as it might turn off
469 * display on active crtc
470 */
471 return;
472 }
473 }
474 }
475
476 memset(&args, 0, sizeof(args));
477
478 if (ASIC_IS_DCE5(rdev)) {
479 args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0);
480 args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
481 switch (pll_id) {
482 case ATOM_PPLL1:
483 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
484 break;
485 case ATOM_PPLL2:
486 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
487 break;
488 case ATOM_DCPLL:
489 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
490 break;
491 case ATOM_PPLL_INVALID:
492 return;
493 }
494 args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
495 args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step);
496 args.v3.ucEnable = enable;
497 } else if (ASIC_IS_DCE4(rdev)) {
498 args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
499 args.v2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
500 switch (pll_id) {
501 case ATOM_PPLL1:
502 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P1PLL;
503 break;
504 case ATOM_PPLL2:
505 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P2PLL;
506 break;
507 case ATOM_DCPLL:
508 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_DCPLL;
509 break;
510 case ATOM_PPLL_INVALID:
511 return;
512 }
513 args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
514 args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step);
515 args.v2.ucEnable = enable;
516 } else if (ASIC_IS_DCE3(rdev)) {
517 args.v1.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
518 args.v1.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
519 args.v1.ucSpreadSpectrumStep = ss->step;
520 args.v1.ucSpreadSpectrumDelay = ss->delay;
521 args.v1.ucSpreadSpectrumRange = ss->range;
522 args.v1.ucPpll = pll_id;
523 args.v1.ucEnable = enable;
524 } else if (ASIC_IS_AVIVO(rdev)) {
525 if ((enable == ATOM_DISABLE) || (ss->percentage == 0) ||
526 (ss->type & ATOM_EXTERNAL_SS_MASK)) {
527 atombios_disable_ss(rdev, pll_id);
528 return;
529 }
530 args.lvds_ss_2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
531 args.lvds_ss_2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
532 args.lvds_ss_2.ucSpreadSpectrumStep = ss->step;
533 args.lvds_ss_2.ucSpreadSpectrumDelay = ss->delay;
534 args.lvds_ss_2.ucSpreadSpectrumRange = ss->range;
535 args.lvds_ss_2.ucEnable = enable;
536 } else {
537 if (enable == ATOM_DISABLE) {
538 atombios_disable_ss(rdev, pll_id);
539 return;
540 }
541 args.lvds_ss.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
542 args.lvds_ss.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
543 args.lvds_ss.ucSpreadSpectrumStepSize_Delay = (ss->step & 3) << 2;
544 args.lvds_ss.ucSpreadSpectrumStepSize_Delay |= (ss->delay & 7) << 4;
545 args.lvds_ss.ucEnable = enable;
546 }
547 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
548 }
549
550 union adjust_pixel_clock {
551 ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
552 ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
553 };
554
555 static u32 atombios_adjust_pll(struct drm_crtc *crtc,
556 struct drm_display_mode *mode)
557 {
558 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
559 struct drm_device *dev = crtc->dev;
560 struct radeon_device *rdev = dev->dev_private;
561 struct drm_encoder *encoder = radeon_crtc->encoder;
562 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
563 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
564 u32 adjusted_clock = mode->clock;
565 int encoder_mode = atombios_get_encoder_mode(encoder);
566 u32 dp_clock = mode->clock;
567 u32 clock = mode->clock;
568 int bpc = radeon_crtc->bpc;
569 bool is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
570
571 /* reset the pll flags */
572 radeon_crtc->pll_flags = 0;
573
574 if (ASIC_IS_AVIVO(rdev)) {
575 if ((rdev->family == CHIP_RS600) ||
576 (rdev->family == CHIP_RS690) ||
577 (rdev->family == CHIP_RS740))
578 radeon_crtc->pll_flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
579 RADEON_PLL_PREFER_CLOSEST_LOWER);
580
581 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000) /* range limits??? */
582 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
583 else
584 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
585
586 if (rdev->family < CHIP_RV770)
587 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
588 /* use frac fb div on APUs */
589 if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
590 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
591 /* use frac fb div on RS780/RS880 */
592 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
593 && !radeon_crtc->ss_enabled)
594 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
595 if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
596 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
597 } else {
598 radeon_crtc->pll_flags |= RADEON_PLL_LEGACY;
599
600 if (mode->clock > 200000) /* range limits??? */
601 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
602 else
603 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
604 }
605
606 if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
607 (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
608 if (connector) {
609 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
610 struct radeon_connector_atom_dig *dig_connector =
611 radeon_connector->con_priv;
612
613 dp_clock = dig_connector->dp_clock;
614 }
615 }
616
617 if (radeon_encoder->is_mst_encoder) {
618 struct radeon_encoder_mst *mst_enc = radeon_encoder->enc_priv;
619 struct radeon_connector_atom_dig *dig_connector = mst_enc->connector->con_priv;
620
621 dp_clock = dig_connector->dp_clock;
622 }
623
624 /* use recommended ref_div for ss */
625 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
626 if (radeon_crtc->ss_enabled) {
627 if (radeon_crtc->ss.refdiv) {
628 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
629 radeon_crtc->pll_reference_div = radeon_crtc->ss.refdiv;
630 if (ASIC_IS_AVIVO(rdev) &&
631 rdev->family != CHIP_RS780 &&
632 rdev->family != CHIP_RS880)
633 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
634 }
635 }
636 }
637
638 if (ASIC_IS_AVIVO(rdev)) {
639 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
640 if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
641 adjusted_clock = mode->clock * 2;
642 if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
643 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
644 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
645 radeon_crtc->pll_flags |= RADEON_PLL_IS_LCD;
646 } else {
647 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
648 radeon_crtc->pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
649 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS)
650 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
651 }
652
653 /* adjust pll for deep color modes */
654 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
655 switch (bpc) {
656 case 8:
657 default:
658 break;
659 case 10:
660 clock = (clock * 5) / 4;
661 break;
662 case 12:
663 clock = (clock * 3) / 2;
664 break;
665 case 16:
666 clock = clock * 2;
667 break;
668 }
669 }
670
671 /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock
672 * accordingly based on the encoder/transmitter to work around
673 * special hw requirements.
674 */
675 if (ASIC_IS_DCE3(rdev)) {
676 union adjust_pixel_clock args;
677 u8 frev, crev;
678 int index;
679
680 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
681 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
682 &crev))
683 return adjusted_clock;
684
685 memset(&args, 0, sizeof(args));
686
687 switch (frev) {
688 case 1:
689 switch (crev) {
690 case 1:
691 case 2:
692 args.v1.usPixelClock = cpu_to_le16(clock / 10);
693 args.v1.ucTransmitterID = radeon_encoder->encoder_id;
694 args.v1.ucEncodeMode = encoder_mode;
695 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
696 args.v1.ucConfig |=
697 ADJUST_DISPLAY_CONFIG_SS_ENABLE;
698
699 atom_execute_table(rdev->mode_info.atom_context,
700 index, (uint32_t *)&args);
701 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10;
702 break;
703 case 3:
704 args.v3.sInput.usPixelClock = cpu_to_le16(clock / 10);
705 args.v3.sInput.ucTransmitterID = radeon_encoder->encoder_id;
706 args.v3.sInput.ucEncodeMode = encoder_mode;
707 args.v3.sInput.ucDispPllConfig = 0;
708 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
709 args.v3.sInput.ucDispPllConfig |=
710 DISPPLL_CONFIG_SS_ENABLE;
711 if (ENCODER_MODE_IS_DP(encoder_mode)) {
712 args.v3.sInput.ucDispPllConfig |=
713 DISPPLL_CONFIG_COHERENT_MODE;
714 /* 16200 or 27000 */
715 args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10);
716 } else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
717 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
718 if (dig->coherent_mode)
719 args.v3.sInput.ucDispPllConfig |=
720 DISPPLL_CONFIG_COHERENT_MODE;
721 if (is_duallink)
722 args.v3.sInput.ucDispPllConfig |=
723 DISPPLL_CONFIG_DUAL_LINK;
724 }
725 if (radeon_encoder_get_dp_bridge_encoder_id(encoder) !=
726 ENCODER_OBJECT_ID_NONE)
727 args.v3.sInput.ucExtTransmitterID =
728 radeon_encoder_get_dp_bridge_encoder_id(encoder);
729 else
730 args.v3.sInput.ucExtTransmitterID = 0;
731
732 atom_execute_table(rdev->mode_info.atom_context,
733 index, (uint32_t *)&args);
734 adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10;
735 if (args.v3.sOutput.ucRefDiv) {
736 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
737 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
738 radeon_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv;
739 }
740 if (args.v3.sOutput.ucPostDiv) {
741 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
742 radeon_crtc->pll_flags |= RADEON_PLL_USE_POST_DIV;
743 radeon_crtc->pll_post_div = args.v3.sOutput.ucPostDiv;
744 }
745 break;
746 default:
747 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
748 return adjusted_clock;
749 }
750 break;
751 default:
752 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
753 return adjusted_clock;
754 }
755 }
756 return adjusted_clock;
757 }
758
759 union set_pixel_clock {
760 SET_PIXEL_CLOCK_PS_ALLOCATION base;
761 PIXEL_CLOCK_PARAMETERS v1;
762 PIXEL_CLOCK_PARAMETERS_V2 v2;
763 PIXEL_CLOCK_PARAMETERS_V3 v3;
764 PIXEL_CLOCK_PARAMETERS_V5 v5;
765 PIXEL_CLOCK_PARAMETERS_V6 v6;
766 };
767
768 /* on DCE5, make sure the voltage is high enough to support the
769 * required disp clk.
770 */
771 static void atombios_crtc_set_disp_eng_pll(struct radeon_device *rdev,
772 u32 dispclk)
773 {
774 u8 frev, crev;
775 int index;
776 union set_pixel_clock args;
777
778 memset(&args, 0, sizeof(args));
779
780 index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
781 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
782 &crev))
783 return;
784
785 switch (frev) {
786 case 1:
787 switch (crev) {
788 case 5:
789 /* if the default dcpll clock is specified,
790 * SetPixelClock provides the dividers
791 */
792 args.v5.ucCRTC = ATOM_CRTC_INVALID;
793 args.v5.usPixelClock = cpu_to_le16(dispclk);
794 args.v5.ucPpll = ATOM_DCPLL;
795 break;
796 case 6:
797 /* if the default dcpll clock is specified,
798 * SetPixelClock provides the dividers
799 */
800 args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk);
801 if (ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
802 args.v6.ucPpll = ATOM_EXT_PLL1;
803 else if (ASIC_IS_DCE6(rdev))
804 args.v6.ucPpll = ATOM_PPLL0;
805 else
806 args.v6.ucPpll = ATOM_DCPLL;
807 break;
808 default:
809 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
810 return;
811 }
812 break;
813 default:
814 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
815 return;
816 }
817 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
818 }
819
820 static void atombios_crtc_program_pll(struct drm_crtc *crtc,
821 u32 crtc_id,
822 int pll_id,
823 u32 encoder_mode,
824 u32 encoder_id,
825 u32 clock,
826 u32 ref_div,
827 u32 fb_div,
828 u32 frac_fb_div,
829 u32 post_div,
830 int bpc,
831 bool ss_enabled,
832 struct radeon_atom_ss *ss)
833 {
834 struct drm_device *dev = crtc->dev;
835 struct radeon_device *rdev = dev->dev_private;
836 u8 frev, crev;
837 int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
838 union set_pixel_clock args;
839
840 memset(&args, 0, sizeof(args));
841
842 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
843 &crev))
844 return;
845
846 switch (frev) {
847 case 1:
848 switch (crev) {
849 case 1:
850 if (clock == ATOM_DISABLE)
851 return;
852 args.v1.usPixelClock = cpu_to_le16(clock / 10);
853 args.v1.usRefDiv = cpu_to_le16(ref_div);
854 args.v1.usFbDiv = cpu_to_le16(fb_div);
855 args.v1.ucFracFbDiv = frac_fb_div;
856 args.v1.ucPostDiv = post_div;
857 args.v1.ucPpll = pll_id;
858 args.v1.ucCRTC = crtc_id;
859 args.v1.ucRefDivSrc = 1;
860 break;
861 case 2:
862 args.v2.usPixelClock = cpu_to_le16(clock / 10);
863 args.v2.usRefDiv = cpu_to_le16(ref_div);
864 args.v2.usFbDiv = cpu_to_le16(fb_div);
865 args.v2.ucFracFbDiv = frac_fb_div;
866 args.v2.ucPostDiv = post_div;
867 args.v2.ucPpll = pll_id;
868 args.v2.ucCRTC = crtc_id;
869 args.v2.ucRefDivSrc = 1;
870 break;
871 case 3:
872 args.v3.usPixelClock = cpu_to_le16(clock / 10);
873 args.v3.usRefDiv = cpu_to_le16(ref_div);
874 args.v3.usFbDiv = cpu_to_le16(fb_div);
875 args.v3.ucFracFbDiv = frac_fb_div;
876 args.v3.ucPostDiv = post_div;
877 args.v3.ucPpll = pll_id;
878 if (crtc_id == ATOM_CRTC2)
879 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2;
880 else
881 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1;
882 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
883 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC;
884 args.v3.ucTransmitterId = encoder_id;
885 args.v3.ucEncoderMode = encoder_mode;
886 break;
887 case 5:
888 args.v5.ucCRTC = crtc_id;
889 args.v5.usPixelClock = cpu_to_le16(clock / 10);
890 args.v5.ucRefDiv = ref_div;
891 args.v5.usFbDiv = cpu_to_le16(fb_div);
892 args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
893 args.v5.ucPostDiv = post_div;
894 args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
895 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
896 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
897 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
898 switch (bpc) {
899 case 8:
900 default:
901 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
902 break;
903 case 10:
904 /* yes this is correct, the atom define is wrong */
905 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP;
906 break;
907 case 12:
908 /* yes this is correct, the atom define is wrong */
909 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
910 break;
911 }
912 }
913 args.v5.ucTransmitterID = encoder_id;
914 args.v5.ucEncoderMode = encoder_mode;
915 args.v5.ucPpll = pll_id;
916 break;
917 case 6:
918 args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10);
919 args.v6.ucRefDiv = ref_div;
920 args.v6.usFbDiv = cpu_to_le16(fb_div);
921 args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
922 args.v6.ucPostDiv = post_div;
923 args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
924 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
925 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
926 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
927 switch (bpc) {
928 case 8:
929 default:
930 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
931 break;
932 case 10:
933 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6;
934 break;
935 case 12:
936 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6;
937 break;
938 case 16:
939 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
940 break;
941 }
942 }
943 args.v6.ucTransmitterID = encoder_id;
944 args.v6.ucEncoderMode = encoder_mode;
945 args.v6.ucPpll = pll_id;
946 break;
947 default:
948 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
949 return;
950 }
951 break;
952 default:
953 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
954 return;
955 }
956
957 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
958 }
959
960 static bool atombios_crtc_prepare_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
961 {
962 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
963 struct drm_device *dev = crtc->dev;
964 struct radeon_device *rdev = dev->dev_private;
965 struct radeon_encoder *radeon_encoder =
966 to_radeon_encoder(radeon_crtc->encoder);
967 int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
968
969 radeon_crtc->bpc = 8;
970 radeon_crtc->ss_enabled = false;
971
972 if (radeon_encoder->is_mst_encoder) {
973 radeon_dp_mst_prepare_pll(crtc, mode);
974 } else if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
975 (radeon_encoder_get_dp_bridge_encoder_id(radeon_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) {
976 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
977 struct drm_connector *connector =
978 radeon_get_connector_for_encoder(radeon_crtc->encoder);
979 struct radeon_connector *radeon_connector =
980 to_radeon_connector(connector);
981 struct radeon_connector_atom_dig *dig_connector =
982 radeon_connector->con_priv;
983 int dp_clock;
984
985 /* Assign mode clock for hdmi deep color max clock limit check */
986 radeon_connector->pixelclock_for_modeset = mode->clock;
987 radeon_crtc->bpc = radeon_get_monitor_bpc(connector);
988
989 switch (encoder_mode) {
990 case ATOM_ENCODER_MODE_DP_MST:
991 case ATOM_ENCODER_MODE_DP:
992 /* DP/eDP */
993 dp_clock = dig_connector->dp_clock / 10;
994 if (ASIC_IS_DCE4(rdev))
995 radeon_crtc->ss_enabled =
996 radeon_atombios_get_asic_ss_info(rdev, &radeon_crtc->ss,
997 ASIC_INTERNAL_SS_ON_DP,
998 dp_clock);
999 else {
1000 if (dp_clock == 16200) {
1001 radeon_crtc->ss_enabled =
1002 radeon_atombios_get_ppll_ss_info(rdev,
1003 &radeon_crtc->ss,
1004 ATOM_DP_SS_ID2);
1005 if (!radeon_crtc->ss_enabled)
1006 radeon_crtc->ss_enabled =
1007 radeon_atombios_get_ppll_ss_info(rdev,
1008 &radeon_crtc->ss,
1009 ATOM_DP_SS_ID1);
1010 } else {
1011 radeon_crtc->ss_enabled =
1012 radeon_atombios_get_ppll_ss_info(rdev,
1013 &radeon_crtc->ss,
1014 ATOM_DP_SS_ID1);
1015 }
1016 /* disable spread spectrum on DCE3 DP */
1017 radeon_crtc->ss_enabled = false;
1018 }
1019 break;
1020 case ATOM_ENCODER_MODE_LVDS:
1021 if (ASIC_IS_DCE4(rdev))
1022 radeon_crtc->ss_enabled =
1023 radeon_atombios_get_asic_ss_info(rdev,
1024 &radeon_crtc->ss,
1025 dig->lcd_ss_id,
1026 mode->clock / 10);
1027 else
1028 radeon_crtc->ss_enabled =
1029 radeon_atombios_get_ppll_ss_info(rdev,
1030 &radeon_crtc->ss,
1031 dig->lcd_ss_id);
1032 break;
1033 case ATOM_ENCODER_MODE_DVI:
1034 if (ASIC_IS_DCE4(rdev))
1035 radeon_crtc->ss_enabled =
1036 radeon_atombios_get_asic_ss_info(rdev,
1037 &radeon_crtc->ss,
1038 ASIC_INTERNAL_SS_ON_TMDS,
1039 mode->clock / 10);
1040 break;
1041 case ATOM_ENCODER_MODE_HDMI:
1042 if (ASIC_IS_DCE4(rdev))
1043 radeon_crtc->ss_enabled =
1044 radeon_atombios_get_asic_ss_info(rdev,
1045 &radeon_crtc->ss,
1046 ASIC_INTERNAL_SS_ON_HDMI,
1047 mode->clock / 10);
1048 break;
1049 default:
1050 break;
1051 }
1052 }
1053
1054 /* adjust pixel clock as needed */
1055 radeon_crtc->adjusted_clock = atombios_adjust_pll(crtc, mode);
1056
1057 return true;
1058 }
1059
1060 static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
1061 {
1062 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1063 struct drm_device *dev = crtc->dev;
1064 struct radeon_device *rdev = dev->dev_private;
1065 struct radeon_encoder *radeon_encoder =
1066 to_radeon_encoder(radeon_crtc->encoder);
1067 u32 pll_clock = mode->clock;
1068 u32 clock = mode->clock;
1069 u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
1070 struct radeon_pll *pll;
1071 int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
1072
1073 /* pass the actual clock to atombios_crtc_program_pll for DCE5,6 for HDMI */
1074 if (ASIC_IS_DCE5(rdev) &&
1075 (encoder_mode == ATOM_ENCODER_MODE_HDMI) &&
1076 (radeon_crtc->bpc > 8))
1077 clock = radeon_crtc->adjusted_clock;
1078
1079 switch (radeon_crtc->pll_id) {
1080 case ATOM_PPLL1:
1081 pll = &rdev->clock.p1pll;
1082 break;
1083 case ATOM_PPLL2:
1084 pll = &rdev->clock.p2pll;
1085 break;
1086 case ATOM_DCPLL:
1087 case ATOM_PPLL_INVALID:
1088 default:
1089 pll = &rdev->clock.dcpll;
1090 break;
1091 }
1092
1093 /* update pll params */
1094 pll->flags = radeon_crtc->pll_flags;
1095 pll->reference_div = radeon_crtc->pll_reference_div;
1096 pll->post_div = radeon_crtc->pll_post_div;
1097
1098 if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
1099 /* TV seems to prefer the legacy algo on some boards */
1100 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1101 &fb_div, &frac_fb_div, &ref_div, &post_div);
1102 else if (ASIC_IS_AVIVO(rdev))
1103 radeon_compute_pll_avivo(pll, radeon_crtc->adjusted_clock, &pll_clock,
1104 &fb_div, &frac_fb_div, &ref_div, &post_div);
1105 else
1106 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1107 &fb_div, &frac_fb_div, &ref_div, &post_div);
1108
1109 atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id,
1110 radeon_crtc->crtc_id, &radeon_crtc->ss);
1111
1112 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1113 encoder_mode, radeon_encoder->encoder_id, clock,
1114 ref_div, fb_div, frac_fb_div, post_div,
1115 radeon_crtc->bpc, radeon_crtc->ss_enabled, &radeon_crtc->ss);
1116
1117 if (radeon_crtc->ss_enabled) {
1118 /* calculate ss amount and step size */
1119 if (ASIC_IS_DCE4(rdev)) {
1120 u32 step_size;
1121 u32 amount = (((fb_div * 10) + frac_fb_div) *
1122 (u32)radeon_crtc->ss.percentage) /
1123 (100 * (u32)radeon_crtc->ss.percentage_divider);
1124 radeon_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK;
1125 radeon_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) &
1126 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK;
1127 if (radeon_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD)
1128 step_size = (4 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1129 (125 * 25 * pll->reference_freq / 100);
1130 else
1131 step_size = (2 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1132 (125 * 25 * pll->reference_freq / 100);
1133 radeon_crtc->ss.step = step_size;
1134 }
1135
1136 atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id,
1137 radeon_crtc->crtc_id, &radeon_crtc->ss);
1138 }
1139 }
1140
1141 static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
1142 struct drm_framebuffer *fb,
1143 int x, int y, int atomic)
1144 {
1145 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1146 struct drm_device *dev = crtc->dev;
1147 struct radeon_device *rdev = dev->dev_private;
1148 struct radeon_framebuffer *radeon_fb;
1149 struct drm_framebuffer *target_fb;
1150 struct drm_gem_object *obj;
1151 struct radeon_bo *rbo;
1152 uint64_t fb_location;
1153 uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1154 unsigned bankw, bankh, mtaspect, tile_split;
1155 u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
1156 u32 tmp, viewport_w, viewport_h;
1157 int r;
1158 bool bypass_lut = false;
1159 char *format_name;
1160
1161 /* no fb bound */
1162 if (!atomic && !crtc->primary->fb) {
1163 DRM_DEBUG_KMS("No FB bound\n");
1164 return 0;
1165 }
1166
1167 if (atomic) {
1168 radeon_fb = to_radeon_framebuffer(fb);
1169 target_fb = fb;
1170 }
1171 else {
1172 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1173 target_fb = crtc->primary->fb;
1174 }
1175
1176 /* If atomic, assume fb object is pinned & idle & fenced and
1177 * just update base pointers
1178 */
1179 obj = radeon_fb->obj;
1180 rbo = gem_to_radeon_bo(obj);
1181 r = radeon_bo_reserve(rbo, false);
1182 if (unlikely(r != 0))
1183 return r;
1184
1185 if (atomic)
1186 fb_location = radeon_bo_gpu_offset(rbo);
1187 else {
1188 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1189 if (unlikely(r != 0)) {
1190 radeon_bo_unreserve(rbo);
1191 return -EINVAL;
1192 }
1193 }
1194
1195 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1196 radeon_bo_unreserve(rbo);
1197
1198 switch (target_fb->pixel_format) {
1199 case DRM_FORMAT_C8:
1200 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
1201 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
1202 break;
1203 case DRM_FORMAT_XRGB4444:
1204 case DRM_FORMAT_ARGB4444:
1205 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1206 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB4444));
1207 #ifdef __BIG_ENDIAN
1208 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1209 #endif
1210 break;
1211 case DRM_FORMAT_XRGB1555:
1212 case DRM_FORMAT_ARGB1555:
1213 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1214 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
1215 #ifdef __BIG_ENDIAN
1216 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1217 #endif
1218 break;
1219 case DRM_FORMAT_BGRX5551:
1220 case DRM_FORMAT_BGRA5551:
1221 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1222 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA5551));
1223 #ifdef __BIG_ENDIAN
1224 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1225 #endif
1226 break;
1227 case DRM_FORMAT_RGB565:
1228 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1229 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
1230 #ifdef __BIG_ENDIAN
1231 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1232 #endif
1233 break;
1234 case DRM_FORMAT_XRGB8888:
1235 case DRM_FORMAT_ARGB8888:
1236 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1237 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1238 #ifdef __BIG_ENDIAN
1239 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1240 #endif
1241 break;
1242 case DRM_FORMAT_XRGB2101010:
1243 case DRM_FORMAT_ARGB2101010:
1244 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1245 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB2101010));
1246 #ifdef __BIG_ENDIAN
1247 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1248 #endif
1249 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1250 bypass_lut = true;
1251 break;
1252 case DRM_FORMAT_BGRX1010102:
1253 case DRM_FORMAT_BGRA1010102:
1254 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1255 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA1010102));
1256 #ifdef __BIG_ENDIAN
1257 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1258 #endif
1259 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1260 bypass_lut = true;
1261 break;
1262 default:
1263 format_name = drm_get_format_name(target_fb->pixel_format);
1264 DRM_ERROR("Unsupported screen format %s\n", format_name);
1265 kfree(format_name);
1266 return -EINVAL;
1267 }
1268
1269 if (tiling_flags & RADEON_TILING_MACRO) {
1270 evergreen_tiling_fields(tiling_flags, &bankw, &bankh, &mtaspect, &tile_split);
1271
1272 /* Set NUM_BANKS. */
1273 if (rdev->family >= CHIP_TAHITI) {
1274 unsigned index, num_banks;
1275
1276 if (rdev->family >= CHIP_BONAIRE) {
1277 unsigned tileb, tile_split_bytes;
1278
1279 /* Calculate the macrotile mode index. */
1280 tile_split_bytes = 64 << tile_split;
1281 tileb = 8 * 8 * target_fb->bits_per_pixel / 8;
1282 tileb = min(tile_split_bytes, tileb);
1283
1284 for (index = 0; tileb > 64; index++)
1285 tileb >>= 1;
1286
1287 if (index >= 16) {
1288 DRM_ERROR("Wrong screen bpp (%u) or tile split (%u)\n",
1289 target_fb->bits_per_pixel, tile_split);
1290 return -EINVAL;
1291 }
1292
1293 num_banks = (rdev->config.cik.macrotile_mode_array[index] >> 6) & 0x3;
1294 } else {
1295 switch (target_fb->bits_per_pixel) {
1296 case 8:
1297 index = 10;
1298 break;
1299 case 16:
1300 index = SI_TILE_MODE_COLOR_2D_SCANOUT_16BPP;
1301 break;
1302 default:
1303 case 32:
1304 index = SI_TILE_MODE_COLOR_2D_SCANOUT_32BPP;
1305 break;
1306 }
1307
1308 num_banks = (rdev->config.si.tile_mode_array[index] >> 20) & 0x3;
1309 }
1310
1311 fb_format |= EVERGREEN_GRPH_NUM_BANKS(num_banks);
1312 } else {
1313 /* NI and older. */
1314 if (rdev->family >= CHIP_CAYMAN)
1315 tmp = rdev->config.cayman.tile_config;
1316 else
1317 tmp = rdev->config.evergreen.tile_config;
1318
1319 switch ((tmp & 0xf0) >> 4) {
1320 case 0: /* 4 banks */
1321 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_4_BANK);
1322 break;
1323 case 1: /* 8 banks */
1324 default:
1325 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_8_BANK);
1326 break;
1327 case 2: /* 16 banks */
1328 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_16_BANK);
1329 break;
1330 }
1331 }
1332
1333 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
1334 fb_format |= EVERGREEN_GRPH_TILE_SPLIT(tile_split);
1335 fb_format |= EVERGREEN_GRPH_BANK_WIDTH(bankw);
1336 fb_format |= EVERGREEN_GRPH_BANK_HEIGHT(bankh);
1337 fb_format |= EVERGREEN_GRPH_MACRO_TILE_ASPECT(mtaspect);
1338 if (rdev->family >= CHIP_BONAIRE) {
1339 /* XXX need to know more about the surface tiling mode */
1340 fb_format |= CIK_GRPH_MICRO_TILE_MODE(CIK_DISPLAY_MICRO_TILING);
1341 }
1342 } else if (tiling_flags & RADEON_TILING_MICRO)
1343 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
1344
1345 if (rdev->family >= CHIP_BONAIRE) {
1346 /* Read the pipe config from the 2D TILED SCANOUT mode.
1347 * It should be the same for the other modes too, but not all
1348 * modes set the pipe config field. */
1349 u32 pipe_config = (rdev->config.cik.tile_mode_array[10] >> 6) & 0x1f;
1350
1351 fb_format |= CIK_GRPH_PIPE_CONFIG(pipe_config);
1352 } else if ((rdev->family == CHIP_TAHITI) ||
1353 (rdev->family == CHIP_PITCAIRN))
1354 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
1355 else if ((rdev->family == CHIP_VERDE) ||
1356 (rdev->family == CHIP_OLAND) ||
1357 (rdev->family == CHIP_HAINAN)) /* for completeness. HAINAN has no display hw */
1358 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
1359
1360 switch (radeon_crtc->crtc_id) {
1361 case 0:
1362 WREG32(AVIVO_D1VGA_CONTROL, 0);
1363 break;
1364 case 1:
1365 WREG32(AVIVO_D2VGA_CONTROL, 0);
1366 break;
1367 case 2:
1368 WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1369 break;
1370 case 3:
1371 WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1372 break;
1373 case 4:
1374 WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1375 break;
1376 case 5:
1377 WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1378 break;
1379 default:
1380 break;
1381 }
1382
1383 /* Make sure surface address is updated at vertical blank rather than
1384 * horizontal blank
1385 */
1386 WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1387
1388 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1389 upper_32_bits(fb_location));
1390 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1391 upper_32_bits(fb_location));
1392 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1393 (u32)fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1394 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1395 (u32) fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1396 WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1397 WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1398
1399 /*
1400 * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
1401 * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
1402 * retain the full precision throughout the pipeline.
1403 */
1404 WREG32_P(EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL + radeon_crtc->crtc_offset,
1405 (bypass_lut ? EVERGREEN_LUT_10BIT_BYPASS_EN : 0),
1406 ~EVERGREEN_LUT_10BIT_BYPASS_EN);
1407
1408 if (bypass_lut)
1409 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1410
1411 WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1412 WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1413 WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
1414 WREG32(EVERGREEN_GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1415 WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1416 WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1417
1418 fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
1419 WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1420 WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1421
1422 if (rdev->family >= CHIP_BONAIRE)
1423 WREG32(CIK_LB_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1424 target_fb->height);
1425 else
1426 WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1427 target_fb->height);
1428 x &= ~3;
1429 y &= ~1;
1430 WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
1431 (x << 16) | y);
1432 viewport_w = crtc->mode.hdisplay;
1433 viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1434 if ((rdev->family >= CHIP_BONAIRE) &&
1435 (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
1436 viewport_h *= 2;
1437 WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1438 (viewport_w << 16) | viewport_h);
1439
1440 /* set pageflip to happen anywhere in vblank interval */
1441 WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1442
1443 if (!atomic && fb && fb != crtc->primary->fb) {
1444 radeon_fb = to_radeon_framebuffer(fb);
1445 rbo = gem_to_radeon_bo(radeon_fb->obj);
1446 r = radeon_bo_reserve(rbo, false);
1447 if (unlikely(r != 0))
1448 return r;
1449 radeon_bo_unpin(rbo);
1450 radeon_bo_unreserve(rbo);
1451 }
1452
1453 /* Bytes per pixel may have changed */
1454 radeon_bandwidth_update(rdev);
1455
1456 return 0;
1457 }
1458
1459 static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
1460 struct drm_framebuffer *fb,
1461 int x, int y, int atomic)
1462 {
1463 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1464 struct drm_device *dev = crtc->dev;
1465 struct radeon_device *rdev = dev->dev_private;
1466 struct radeon_framebuffer *radeon_fb;
1467 struct drm_gem_object *obj;
1468 struct radeon_bo *rbo;
1469 struct drm_framebuffer *target_fb;
1470 uint64_t fb_location;
1471 uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1472 u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
1473 u32 viewport_w, viewport_h;
1474 int r;
1475 bool bypass_lut = false;
1476 char *format_name;
1477
1478 /* no fb bound */
1479 if (!atomic && !crtc->primary->fb) {
1480 DRM_DEBUG_KMS("No FB bound\n");
1481 return 0;
1482 }
1483
1484 if (atomic) {
1485 radeon_fb = to_radeon_framebuffer(fb);
1486 target_fb = fb;
1487 }
1488 else {
1489 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1490 target_fb = crtc->primary->fb;
1491 }
1492
1493 obj = radeon_fb->obj;
1494 rbo = gem_to_radeon_bo(obj);
1495 r = radeon_bo_reserve(rbo, false);
1496 if (unlikely(r != 0))
1497 return r;
1498
1499 /* If atomic, assume fb object is pinned & idle & fenced and
1500 * just update base pointers
1501 */
1502 if (atomic)
1503 fb_location = radeon_bo_gpu_offset(rbo);
1504 else {
1505 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1506 if (unlikely(r != 0)) {
1507 radeon_bo_unreserve(rbo);
1508 return -EINVAL;
1509 }
1510 }
1511 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1512 radeon_bo_unreserve(rbo);
1513
1514 switch (target_fb->pixel_format) {
1515 case DRM_FORMAT_C8:
1516 fb_format =
1517 AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
1518 AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
1519 break;
1520 case DRM_FORMAT_XRGB4444:
1521 case DRM_FORMAT_ARGB4444:
1522 fb_format =
1523 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1524 AVIVO_D1GRPH_CONTROL_16BPP_ARGB4444;
1525 #ifdef __BIG_ENDIAN
1526 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1527 #endif
1528 break;
1529 case DRM_FORMAT_XRGB1555:
1530 fb_format =
1531 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1532 AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
1533 #ifdef __BIG_ENDIAN
1534 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1535 #endif
1536 break;
1537 case DRM_FORMAT_RGB565:
1538 fb_format =
1539 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1540 AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
1541 #ifdef __BIG_ENDIAN
1542 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1543 #endif
1544 break;
1545 case DRM_FORMAT_XRGB8888:
1546 case DRM_FORMAT_ARGB8888:
1547 fb_format =
1548 AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1549 AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1550 #ifdef __BIG_ENDIAN
1551 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1552 #endif
1553 break;
1554 case DRM_FORMAT_XRGB2101010:
1555 case DRM_FORMAT_ARGB2101010:
1556 fb_format =
1557 AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1558 AVIVO_D1GRPH_CONTROL_32BPP_ARGB2101010;
1559 #ifdef __BIG_ENDIAN
1560 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1561 #endif
1562 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1563 bypass_lut = true;
1564 break;
1565 default:
1566 format_name = drm_get_format_name(target_fb->pixel_format);
1567 DRM_ERROR("Unsupported screen format %s\n", format_name);
1568 kfree(format_name);
1569 return -EINVAL;
1570 }
1571
1572 if (rdev->family >= CHIP_R600) {
1573 if (tiling_flags & RADEON_TILING_MACRO)
1574 fb_format |= R600_D1GRPH_ARRAY_MODE_2D_TILED_THIN1;
1575 else if (tiling_flags & RADEON_TILING_MICRO)
1576 fb_format |= R600_D1GRPH_ARRAY_MODE_1D_TILED_THIN1;
1577 } else {
1578 if (tiling_flags & RADEON_TILING_MACRO)
1579 fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
1580
1581 if (tiling_flags & RADEON_TILING_MICRO)
1582 fb_format |= AVIVO_D1GRPH_TILED;
1583 }
1584
1585 if (radeon_crtc->crtc_id == 0)
1586 WREG32(AVIVO_D1VGA_CONTROL, 0);
1587 else
1588 WREG32(AVIVO_D2VGA_CONTROL, 0);
1589
1590 /* Make sure surface address is update at vertical blank rather than
1591 * horizontal blank
1592 */
1593 WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1594
1595 if (rdev->family >= CHIP_RV770) {
1596 if (radeon_crtc->crtc_id) {
1597 WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1598 WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1599 } else {
1600 WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1601 WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1602 }
1603 }
1604 WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1605 (u32) fb_location);
1606 WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
1607 radeon_crtc->crtc_offset, (u32) fb_location);
1608 WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1609 if (rdev->family >= CHIP_R600)
1610 WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1611
1612 /* LUT only has 256 slots for 8 bpc fb. Bypass for > 8 bpc scanout for precision */
1613 WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset,
1614 (bypass_lut ? AVIVO_LUT_10BIT_BYPASS_EN : 0), ~AVIVO_LUT_10BIT_BYPASS_EN);
1615
1616 if (bypass_lut)
1617 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1618
1619 WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1620 WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1621 WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
1622 WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1623 WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1624 WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1625
1626 fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
1627 WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1628 WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1629
1630 WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1631 target_fb->height);
1632 x &= ~3;
1633 y &= ~1;
1634 WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
1635 (x << 16) | y);
1636 viewport_w = crtc->mode.hdisplay;
1637 viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1638 WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1639 (viewport_w << 16) | viewport_h);
1640
1641 /* set pageflip to happen anywhere in vblank interval */
1642 WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1643
1644 if (!atomic && fb && fb != crtc->primary->fb) {
1645 radeon_fb = to_radeon_framebuffer(fb);
1646 rbo = gem_to_radeon_bo(radeon_fb->obj);
1647 r = radeon_bo_reserve(rbo, false);
1648 if (unlikely(r != 0))
1649 return r;
1650 radeon_bo_unpin(rbo);
1651 radeon_bo_unreserve(rbo);
1652 }
1653
1654 /* Bytes per pixel may have changed */
1655 radeon_bandwidth_update(rdev);
1656
1657 return 0;
1658 }
1659
1660 int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
1661 struct drm_framebuffer *old_fb)
1662 {
1663 struct drm_device *dev = crtc->dev;
1664 struct radeon_device *rdev = dev->dev_private;
1665
1666 if (ASIC_IS_DCE4(rdev))
1667 return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
1668 else if (ASIC_IS_AVIVO(rdev))
1669 return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
1670 else
1671 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
1672 }
1673
1674 int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
1675 struct drm_framebuffer *fb,
1676 int x, int y, enum mode_set_atomic state)
1677 {
1678 struct drm_device *dev = crtc->dev;
1679 struct radeon_device *rdev = dev->dev_private;
1680
1681 if (ASIC_IS_DCE4(rdev))
1682 return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
1683 else if (ASIC_IS_AVIVO(rdev))
1684 return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
1685 else
1686 return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
1687 }
1688
1689 /* properly set additional regs when using atombios */
1690 static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
1691 {
1692 struct drm_device *dev = crtc->dev;
1693 struct radeon_device *rdev = dev->dev_private;
1694 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1695 u32 disp_merge_cntl;
1696
1697 switch (radeon_crtc->crtc_id) {
1698 case 0:
1699 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
1700 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
1701 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
1702 break;
1703 case 1:
1704 disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
1705 disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
1706 WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
1707 WREG32(RADEON_FP_H2_SYNC_STRT_WID, RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
1708 WREG32(RADEON_FP_V2_SYNC_STRT_WID, RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
1709 break;
1710 }
1711 }
1712
1713 /**
1714 * radeon_get_pll_use_mask - look up a mask of which pplls are in use
1715 *
1716 * @crtc: drm crtc
1717 *
1718 * Returns the mask of which PPLLs (Pixel PLLs) are in use.
1719 */
1720 static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc)
1721 {
1722 struct drm_device *dev = crtc->dev;
1723 struct drm_crtc *test_crtc;
1724 struct radeon_crtc *test_radeon_crtc;
1725 u32 pll_in_use = 0;
1726
1727 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1728 if (crtc == test_crtc)
1729 continue;
1730
1731 test_radeon_crtc = to_radeon_crtc(test_crtc);
1732 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1733 pll_in_use |= (1 << test_radeon_crtc->pll_id);
1734 }
1735 return pll_in_use;
1736 }
1737
1738 /**
1739 * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP
1740 *
1741 * @crtc: drm crtc
1742 *
1743 * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is
1744 * also in DP mode. For DP, a single PPLL can be used for all DP
1745 * crtcs/encoders.
1746 */
1747 static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
1748 {
1749 struct drm_device *dev = crtc->dev;
1750 struct radeon_device *rdev = dev->dev_private;
1751 struct drm_crtc *test_crtc;
1752 struct radeon_crtc *test_radeon_crtc;
1753
1754 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1755 if (crtc == test_crtc)
1756 continue;
1757 test_radeon_crtc = to_radeon_crtc(test_crtc);
1758 if (test_radeon_crtc->encoder &&
1759 ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1760 /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1761 if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1762 test_radeon_crtc->pll_id == ATOM_PPLL2)
1763 continue;
1764 /* for DP use the same PLL for all */
1765 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1766 return test_radeon_crtc->pll_id;
1767 }
1768 }
1769 return ATOM_PPLL_INVALID;
1770 }
1771
1772 /**
1773 * radeon_get_shared_nondp_ppll - return the PPLL used by another non-DP crtc
1774 *
1775 * @crtc: drm crtc
1776 * @encoder: drm encoder
1777 *
1778 * Returns the PPLL (Pixel PLL) used by another non-DP crtc/encoder which can
1779 * be shared (i.e., same clock).
1780 */
1781 static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
1782 {
1783 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1784 struct drm_device *dev = crtc->dev;
1785 struct radeon_device *rdev = dev->dev_private;
1786 struct drm_crtc *test_crtc;
1787 struct radeon_crtc *test_radeon_crtc;
1788 u32 adjusted_clock, test_adjusted_clock;
1789
1790 adjusted_clock = radeon_crtc->adjusted_clock;
1791
1792 if (adjusted_clock == 0)
1793 return ATOM_PPLL_INVALID;
1794
1795 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1796 if (crtc == test_crtc)
1797 continue;
1798 test_radeon_crtc = to_radeon_crtc(test_crtc);
1799 if (test_radeon_crtc->encoder &&
1800 !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1801 /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1802 if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1803 test_radeon_crtc->pll_id == ATOM_PPLL2)
1804 continue;
1805 /* check if we are already driving this connector with another crtc */
1806 if (test_radeon_crtc->connector == radeon_crtc->connector) {
1807 /* if we are, return that pll */
1808 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1809 return test_radeon_crtc->pll_id;
1810 }
1811 /* for non-DP check the clock */
1812 test_adjusted_clock = test_radeon_crtc->adjusted_clock;
1813 if ((crtc->mode.clock == test_crtc->mode.clock) &&
1814 (adjusted_clock == test_adjusted_clock) &&
1815 (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
1816 (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
1817 return test_radeon_crtc->pll_id;
1818 }
1819 }
1820 return ATOM_PPLL_INVALID;
1821 }
1822
1823 /**
1824 * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc.
1825 *
1826 * @crtc: drm crtc
1827 *
1828 * Returns the PPLL (Pixel PLL) to be used by the crtc. For DP monitors
1829 * a single PPLL can be used for all DP crtcs/encoders. For non-DP
1830 * monitors a dedicated PPLL must be used. If a particular board has
1831 * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
1832 * as there is no need to program the PLL itself. If we are not able to
1833 * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
1834 * avoid messing up an existing monitor.
1835 *
1836 * Asic specific PLL information
1837 *
1838 * DCE 8.x
1839 * KB/KV
1840 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP)
1841 * CI
1842 * - PPLL0, PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1843 *
1844 * DCE 6.1
1845 * - PPLL2 is only available to UNIPHYA (both DP and non-DP)
1846 * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP)
1847 *
1848 * DCE 6.0
1849 * - PPLL0 is available to all UNIPHY (DP only)
1850 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1851 *
1852 * DCE 5.0
1853 * - DCPLL is available to all UNIPHY (DP only)
1854 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1855 *
1856 * DCE 3.0/4.0/4.1
1857 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1858 *
1859 */
1860 static int radeon_atom_pick_pll(struct drm_crtc *crtc)
1861 {
1862 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1863 struct drm_device *dev = crtc->dev;
1864 struct radeon_device *rdev = dev->dev_private;
1865 struct radeon_encoder *radeon_encoder =
1866 to_radeon_encoder(radeon_crtc->encoder);
1867 u32 pll_in_use;
1868 int pll;
1869
1870 if (ASIC_IS_DCE8(rdev)) {
1871 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1872 if (rdev->clock.dp_extclk)
1873 /* skip PPLL programming if using ext clock */
1874 return ATOM_PPLL_INVALID;
1875 else {
1876 /* use the same PPLL for all DP monitors */
1877 pll = radeon_get_shared_dp_ppll(crtc);
1878 if (pll != ATOM_PPLL_INVALID)
1879 return pll;
1880 }
1881 } else {
1882 /* use the same PPLL for all monitors with the same clock */
1883 pll = radeon_get_shared_nondp_ppll(crtc);
1884 if (pll != ATOM_PPLL_INVALID)
1885 return pll;
1886 }
1887 /* otherwise, pick one of the plls */
1888 if ((rdev->family == CHIP_KABINI) ||
1889 (rdev->family == CHIP_MULLINS)) {
1890 /* KB/ML has PPLL1 and PPLL2 */
1891 pll_in_use = radeon_get_pll_use_mask(crtc);
1892 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1893 return ATOM_PPLL2;
1894 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1895 return ATOM_PPLL1;
1896 DRM_ERROR("unable to allocate a PPLL\n");
1897 return ATOM_PPLL_INVALID;
1898 } else {
1899 /* CI/KV has PPLL0, PPLL1, and PPLL2 */
1900 pll_in_use = radeon_get_pll_use_mask(crtc);
1901 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1902 return ATOM_PPLL2;
1903 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1904 return ATOM_PPLL1;
1905 if (!(pll_in_use & (1 << ATOM_PPLL0)))
1906 return ATOM_PPLL0;
1907 DRM_ERROR("unable to allocate a PPLL\n");
1908 return ATOM_PPLL_INVALID;
1909 }
1910 } else if (ASIC_IS_DCE61(rdev)) {
1911 struct radeon_encoder_atom_dig *dig =
1912 radeon_encoder->enc_priv;
1913
1914 if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) &&
1915 (dig->linkb == false))
1916 /* UNIPHY A uses PPLL2 */
1917 return ATOM_PPLL2;
1918 else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1919 /* UNIPHY B/C/D/E/F */
1920 if (rdev->clock.dp_extclk)
1921 /* skip PPLL programming if using ext clock */
1922 return ATOM_PPLL_INVALID;
1923 else {
1924 /* use the same PPLL for all DP monitors */
1925 pll = radeon_get_shared_dp_ppll(crtc);
1926 if (pll != ATOM_PPLL_INVALID)
1927 return pll;
1928 }
1929 } else {
1930 /* use the same PPLL for all monitors with the same clock */
1931 pll = radeon_get_shared_nondp_ppll(crtc);
1932 if (pll != ATOM_PPLL_INVALID)
1933 return pll;
1934 }
1935 /* UNIPHY B/C/D/E/F */
1936 pll_in_use = radeon_get_pll_use_mask(crtc);
1937 if (!(pll_in_use & (1 << ATOM_PPLL0)))
1938 return ATOM_PPLL0;
1939 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1940 return ATOM_PPLL1;
1941 DRM_ERROR("unable to allocate a PPLL\n");
1942 return ATOM_PPLL_INVALID;
1943 } else if (ASIC_IS_DCE41(rdev)) {
1944 /* Don't share PLLs on DCE4.1 chips */
1945 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1946 if (rdev->clock.dp_extclk)
1947 /* skip PPLL programming if using ext clock */
1948 return ATOM_PPLL_INVALID;
1949 }
1950 pll_in_use = radeon_get_pll_use_mask(crtc);
1951 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1952 return ATOM_PPLL1;
1953 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1954 return ATOM_PPLL2;
1955 DRM_ERROR("unable to allocate a PPLL\n");
1956 return ATOM_PPLL_INVALID;
1957 } else if (ASIC_IS_DCE4(rdev)) {
1958 /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock,
1959 * depending on the asic:
1960 * DCE4: PPLL or ext clock
1961 * DCE5: PPLL, DCPLL, or ext clock
1962 * DCE6: PPLL, PPLL0, or ext clock
1963 *
1964 * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip
1965 * PPLL/DCPLL programming and only program the DP DTO for the
1966 * crtc virtual pixel clock.
1967 */
1968 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1969 if (rdev->clock.dp_extclk)
1970 /* skip PPLL programming if using ext clock */
1971 return ATOM_PPLL_INVALID;
1972 else if (ASIC_IS_DCE6(rdev))
1973 /* use PPLL0 for all DP */
1974 return ATOM_PPLL0;
1975 else if (ASIC_IS_DCE5(rdev))
1976 /* use DCPLL for all DP */
1977 return ATOM_DCPLL;
1978 else {
1979 /* use the same PPLL for all DP monitors */
1980 pll = radeon_get_shared_dp_ppll(crtc);
1981 if (pll != ATOM_PPLL_INVALID)
1982 return pll;
1983 }
1984 } else {
1985 /* use the same PPLL for all monitors with the same clock */
1986 pll = radeon_get_shared_nondp_ppll(crtc);
1987 if (pll != ATOM_PPLL_INVALID)
1988 return pll;
1989 }
1990 /* all other cases */
1991 pll_in_use = radeon_get_pll_use_mask(crtc);
1992 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1993 return ATOM_PPLL1;
1994 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1995 return ATOM_PPLL2;
1996 DRM_ERROR("unable to allocate a PPLL\n");
1997 return ATOM_PPLL_INVALID;
1998 } else {
1999 /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
2000 /* some atombios (observed in some DCE2/DCE3) code have a bug,
2001 * the matching btw pll and crtc is done through
2002 * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the
2003 * pll (1 or 2) to select which register to write. ie if using
2004 * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2
2005 * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to
2006 * choose which value to write. Which is reverse order from
2007 * register logic. So only case that works is when pllid is
2008 * same as crtcid or when both pll and crtc are enabled and
2009 * both use same clock.
2010 *
2011 * So just return crtc id as if crtc and pll were hard linked
2012 * together even if they aren't
2013 */
2014 return radeon_crtc->crtc_id;
2015 }
2016 }
2017
2018 void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
2019 {
2020 /* always set DCPLL */
2021 if (ASIC_IS_DCE6(rdev))
2022 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2023 else if (ASIC_IS_DCE4(rdev)) {
2024 struct radeon_atom_ss ss;
2025 bool ss_enabled = radeon_atombios_get_asic_ss_info(rdev, &ss,
2026 ASIC_INTERNAL_SS_ON_DCPLL,
2027 rdev->clock.default_dispclk);
2028 if (ss_enabled)
2029 atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
2030 /* XXX: DCE5, make sure voltage, dispclk is high enough */
2031 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2032 if (ss_enabled)
2033 atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
2034 }
2035
2036 }
2037
2038 int atombios_crtc_mode_set(struct drm_crtc *crtc,
2039 struct drm_display_mode *mode,
2040 struct drm_display_mode *adjusted_mode,
2041 int x, int y, struct drm_framebuffer *old_fb)
2042 {
2043 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2044 struct drm_device *dev = crtc->dev;
2045 struct radeon_device *rdev = dev->dev_private;
2046 struct radeon_encoder *radeon_encoder =
2047 to_radeon_encoder(radeon_crtc->encoder);
2048 bool is_tvcv = false;
2049
2050 if (radeon_encoder->active_device &
2051 (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
2052 is_tvcv = true;
2053
2054 if (!radeon_crtc->adjusted_clock)
2055 return -EINVAL;
2056
2057 atombios_crtc_set_pll(crtc, adjusted_mode);
2058
2059 if (ASIC_IS_DCE4(rdev))
2060 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2061 else if (ASIC_IS_AVIVO(rdev)) {
2062 if (is_tvcv)
2063 atombios_crtc_set_timing(crtc, adjusted_mode);
2064 else
2065 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2066 } else {
2067 atombios_crtc_set_timing(crtc, adjusted_mode);
2068 if (radeon_crtc->crtc_id == 0)
2069 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2070 radeon_legacy_atom_fixup(crtc);
2071 }
2072 atombios_crtc_set_base(crtc, x, y, old_fb);
2073 atombios_overscan_setup(crtc, mode, adjusted_mode);
2074 atombios_scaler_setup(crtc);
2075 radeon_cursor_reset(crtc);
2076 /* update the hw version fpr dpm */
2077 radeon_crtc->hw_mode = *adjusted_mode;
2078
2079 return 0;
2080 }
2081
2082 static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
2083 const struct drm_display_mode *mode,
2084 struct drm_display_mode *adjusted_mode)
2085 {
2086 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2087 struct drm_device *dev = crtc->dev;
2088 struct drm_encoder *encoder;
2089
2090 /* assign the encoder to the radeon crtc to avoid repeated lookups later */
2091 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2092 if (encoder->crtc == crtc) {
2093 radeon_crtc->encoder = encoder;
2094 radeon_crtc->connector = radeon_get_connector_for_encoder(encoder);
2095 break;
2096 }
2097 }
2098 if ((radeon_crtc->encoder == NULL) || (radeon_crtc->connector == NULL)) {
2099 radeon_crtc->encoder = NULL;
2100 radeon_crtc->connector = NULL;
2101 return false;
2102 }
2103 if (radeon_crtc->encoder) {
2104 struct radeon_encoder *radeon_encoder =
2105 to_radeon_encoder(radeon_crtc->encoder);
2106
2107 radeon_crtc->output_csc = radeon_encoder->output_csc;
2108 }
2109 if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
2110 return false;
2111 if (!atombios_crtc_prepare_pll(crtc, adjusted_mode))
2112 return false;
2113 /* pick pll */
2114 radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
2115 /* if we can't get a PPLL for a non-DP encoder, fail */
2116 if ((radeon_crtc->pll_id == ATOM_PPLL_INVALID) &&
2117 !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder)))
2118 return false;
2119
2120 return true;
2121 }
2122
2123 static void atombios_crtc_prepare(struct drm_crtc *crtc)
2124 {
2125 struct drm_device *dev = crtc->dev;
2126 struct radeon_device *rdev = dev->dev_private;
2127
2128 /* disable crtc pair power gating before programming */
2129 if (ASIC_IS_DCE6(rdev))
2130 atombios_powergate_crtc(crtc, ATOM_DISABLE);
2131
2132 atombios_lock_crtc(crtc, ATOM_ENABLE);
2133 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2134 }
2135
2136 static void atombios_crtc_commit(struct drm_crtc *crtc)
2137 {
2138 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
2139 atombios_lock_crtc(crtc, ATOM_DISABLE);
2140 }
2141
2142 static void atombios_crtc_disable(struct drm_crtc *crtc)
2143 {
2144 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2145 struct drm_device *dev = crtc->dev;
2146 struct radeon_device *rdev = dev->dev_private;
2147 struct radeon_atom_ss ss;
2148 int i;
2149
2150 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2151 if (crtc->primary->fb) {
2152 int r;
2153 struct radeon_framebuffer *radeon_fb;
2154 struct radeon_bo *rbo;
2155
2156 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
2157 rbo = gem_to_radeon_bo(radeon_fb->obj);
2158 r = radeon_bo_reserve(rbo, false);
2159 if (unlikely(r))
2160 DRM_ERROR("failed to reserve rbo before unpin\n");
2161 else {
2162 radeon_bo_unpin(rbo);
2163 radeon_bo_unreserve(rbo);
2164 }
2165 }
2166 /* disable the GRPH */
2167 if (ASIC_IS_DCE4(rdev))
2168 WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2169 else if (ASIC_IS_AVIVO(rdev))
2170 WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2171
2172 if (ASIC_IS_DCE6(rdev))
2173 atombios_powergate_crtc(crtc, ATOM_ENABLE);
2174
2175 for (i = 0; i < rdev->num_crtc; i++) {
2176 if (rdev->mode_info.crtcs[i] &&
2177 rdev->mode_info.crtcs[i]->enabled &&
2178 i != radeon_crtc->crtc_id &&
2179 radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
2180 /* one other crtc is using this pll don't turn
2181 * off the pll
2182 */
2183 goto done;
2184 }
2185 }
2186
2187 switch (radeon_crtc->pll_id) {
2188 case ATOM_PPLL1:
2189 case ATOM_PPLL2:
2190 /* disable the ppll */
2191 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2192 0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2193 break;
2194 case ATOM_PPLL0:
2195 /* disable the ppll */
2196 if ((rdev->family == CHIP_ARUBA) ||
2197 (rdev->family == CHIP_KAVERI) ||
2198 (rdev->family == CHIP_BONAIRE) ||
2199 (rdev->family == CHIP_HAWAII))
2200 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2201 0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2202 break;
2203 default:
2204 break;
2205 }
2206 done:
2207 radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2208 radeon_crtc->adjusted_clock = 0;
2209 radeon_crtc->encoder = NULL;
2210 radeon_crtc->connector = NULL;
2211 }
2212
2213 static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
2214 .dpms = atombios_crtc_dpms,
2215 .mode_fixup = atombios_crtc_mode_fixup,
2216 .mode_set = atombios_crtc_mode_set,
2217 .mode_set_base = atombios_crtc_set_base,
2218 .mode_set_base_atomic = atombios_crtc_set_base_atomic,
2219 .prepare = atombios_crtc_prepare,
2220 .commit = atombios_crtc_commit,
2221 .load_lut = radeon_crtc_load_lut,
2222 .disable = atombios_crtc_disable,
2223 };
2224
2225 void radeon_atombios_init_crtc(struct drm_device *dev,
2226 struct radeon_crtc *radeon_crtc)
2227 {
2228 struct radeon_device *rdev = dev->dev_private;
2229
2230 if (ASIC_IS_DCE4(rdev)) {
2231 switch (radeon_crtc->crtc_id) {
2232 case 0:
2233 default:
2234 radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
2235 break;
2236 case 1:
2237 radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
2238 break;
2239 case 2:
2240 radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
2241 break;
2242 case 3:
2243 radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
2244 break;
2245 case 4:
2246 radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
2247 break;
2248 case 5:
2249 radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
2250 break;
2251 }
2252 } else {
2253 if (radeon_crtc->crtc_id == 1)
2254 radeon_crtc->crtc_offset =
2255 AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2256 else
2257 radeon_crtc->crtc_offset = 0;
2258 }
2259 radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2260 radeon_crtc->adjusted_clock = 0;
2261 radeon_crtc->encoder = NULL;
2262 radeon_crtc->connector = NULL;
2263 drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2264 }
Linux kernel - Deliverables
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