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/drm_crtc_helper.h>
28 #include <drm/drm_fb_helper.h>
29 #include <drm/drm_fixed.h>
30 #include <drm/drm_fourcc.h>
31 #include <drm/drm_vblank.h>
32 #include <drm/radeon_drm.h>
33
34 #include "radeon.h"
35 #include "atom.h"
36 #include "atom-bits.h"
37
atombios_overscan_setup(struct drm_crtc * crtc,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)38 static void atombios_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 radeon_device *rdev = dev->dev_private;
44 struct radeon_crtc *radeon_crtc = to_radeon_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 = radeon_crtc->crtc_id;
52
53 switch (radeon_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(radeon_crtc->h_border);
75 args.usOverscanLeft = cpu_to_le16(radeon_crtc->h_border);
76 args.usOverscanBottom = cpu_to_le16(radeon_crtc->v_border);
77 args.usOverscanTop = cpu_to_le16(radeon_crtc->v_border);
78 break;
79 }
80 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
81 }
82
atombios_scaler_setup(struct drm_crtc * crtc)83 static void atombios_scaler_setup(struct drm_crtc *crtc)
84 {
85 struct drm_device *dev = crtc->dev;
86 struct radeon_device *rdev = dev->dev_private;
87 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
88 ENABLE_SCALER_PS_ALLOCATION args;
89 int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
90 struct radeon_encoder *radeon_encoder =
91 to_radeon_encoder(radeon_crtc->encoder);
92 /* fixme - fill in enc_priv for atom dac */
93 enum radeon_tv_std tv_std = TV_STD_NTSC;
94 bool is_tv = false, is_cv = false;
95
96 if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
97 return;
98
99 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
100 struct radeon_encoder_atom_dac *tv_dac = radeon_encoder->enc_priv;
101 tv_std = tv_dac->tv_std;
102 is_tv = true;
103 }
104
105 memset(&args, 0, sizeof(args));
106
107 args.ucScaler = radeon_crtc->crtc_id;
108
109 if (is_tv) {
110 switch (tv_std) {
111 case TV_STD_NTSC:
112 default:
113 args.ucTVStandard = ATOM_TV_NTSC;
114 break;
115 case TV_STD_PAL:
116 args.ucTVStandard = ATOM_TV_PAL;
117 break;
118 case TV_STD_PAL_M:
119 args.ucTVStandard = ATOM_TV_PALM;
120 break;
121 case TV_STD_PAL_60:
122 args.ucTVStandard = ATOM_TV_PAL60;
123 break;
124 case TV_STD_NTSC_J:
125 args.ucTVStandard = ATOM_TV_NTSCJ;
126 break;
127 case TV_STD_SCART_PAL:
128 args.ucTVStandard = ATOM_TV_PAL; /* ??? */
129 break;
130 case TV_STD_SECAM:
131 args.ucTVStandard = ATOM_TV_SECAM;
132 break;
133 case TV_STD_PAL_CN:
134 args.ucTVStandard = ATOM_TV_PALCN;
135 break;
136 }
137 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
138 } else if (is_cv) {
139 args.ucTVStandard = ATOM_TV_CV;
140 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
141 } else {
142 switch (radeon_crtc->rmx_type) {
143 case RMX_FULL:
144 args.ucEnable = ATOM_SCALER_EXPANSION;
145 break;
146 case RMX_CENTER:
147 args.ucEnable = ATOM_SCALER_CENTER;
148 break;
149 case RMX_ASPECT:
150 args.ucEnable = ATOM_SCALER_EXPANSION;
151 break;
152 default:
153 if (ASIC_IS_AVIVO(rdev))
154 args.ucEnable = ATOM_SCALER_DISABLE;
155 else
156 args.ucEnable = ATOM_SCALER_CENTER;
157 break;
158 }
159 }
160 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
161 if ((is_tv || is_cv)
162 && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_R580) {
163 atom_rv515_force_tv_scaler(rdev, radeon_crtc);
164 }
165 }
166
atombios_lock_crtc(struct drm_crtc * crtc,int lock)167 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
168 {
169 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
170 struct drm_device *dev = crtc->dev;
171 struct radeon_device *rdev = dev->dev_private;
172 int index =
173 GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters);
174 ENABLE_CRTC_PS_ALLOCATION args;
175
176 memset(&args, 0, sizeof(args));
177
178 args.ucCRTC = radeon_crtc->crtc_id;
179 args.ucEnable = lock;
180
181 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
182 }
183
atombios_enable_crtc(struct drm_crtc * crtc,int state)184 static void atombios_enable_crtc(struct drm_crtc *crtc, int state)
185 {
186 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
187 struct drm_device *dev = crtc->dev;
188 struct radeon_device *rdev = dev->dev_private;
189 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC);
190 ENABLE_CRTC_PS_ALLOCATION args;
191
192 memset(&args, 0, sizeof(args));
193
194 args.ucCRTC = radeon_crtc->crtc_id;
195 args.ucEnable = state;
196
197 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
198 }
199
atombios_enable_crtc_memreq(struct drm_crtc * crtc,int state)200 static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
201 {
202 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
203 struct drm_device *dev = crtc->dev;
204 struct radeon_device *rdev = dev->dev_private;
205 int index = GetIndexIntoMasterTable(COMMAND, EnableCRTCMemReq);
206 ENABLE_CRTC_PS_ALLOCATION args;
207
208 memset(&args, 0, sizeof(args));
209
210 args.ucCRTC = radeon_crtc->crtc_id;
211 args.ucEnable = state;
212
213 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
214 }
215
216 static const u32 vga_control_regs[6] =
217 {
218 AVIVO_D1VGA_CONTROL,
219 AVIVO_D2VGA_CONTROL,
220 EVERGREEN_D3VGA_CONTROL,
221 EVERGREEN_D4VGA_CONTROL,
222 EVERGREEN_D5VGA_CONTROL,
223 EVERGREEN_D6VGA_CONTROL,
224 };
225
atombios_blank_crtc(struct drm_crtc * crtc,int state)226 static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
227 {
228 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
229 struct drm_device *dev = crtc->dev;
230 struct radeon_device *rdev = dev->dev_private;
231 int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
232 BLANK_CRTC_PS_ALLOCATION args;
233 u32 vga_control = 0;
234
235 memset(&args, 0, sizeof(args));
236
237 if (ASIC_IS_DCE8(rdev)) {
238 vga_control = RREG32(vga_control_regs[radeon_crtc->crtc_id]);
239 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control | 1);
240 }
241
242 args.ucCRTC = radeon_crtc->crtc_id;
243 args.ucBlanking = state;
244
245 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
246
247 if (ASIC_IS_DCE8(rdev))
248 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control);
249 }
250
atombios_powergate_crtc(struct drm_crtc * crtc,int state)251 static void atombios_powergate_crtc(struct drm_crtc *crtc, int state)
252 {
253 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
254 struct drm_device *dev = crtc->dev;
255 struct radeon_device *rdev = dev->dev_private;
256 int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
257 ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
258
259 memset(&args, 0, sizeof(args));
260
261 args.ucDispPipeId = radeon_crtc->crtc_id;
262 args.ucEnable = state;
263
264 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
265 }
266
atombios_crtc_dpms(struct drm_crtc * crtc,int mode)267 void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
268 {
269 struct drm_device *dev = crtc->dev;
270 struct radeon_device *rdev = dev->dev_private;
271 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
272
273 switch (mode) {
274 case DRM_MODE_DPMS_ON:
275 radeon_crtc->enabled = true;
276 atombios_enable_crtc(crtc, ATOM_ENABLE);
277 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
278 atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
279 atombios_blank_crtc(crtc, ATOM_DISABLE);
280 if (dev->num_crtcs > radeon_crtc->crtc_id)
281 drm_crtc_vblank_on(crtc);
282 radeon_crtc_load_lut(crtc);
283 break;
284 case DRM_MODE_DPMS_STANDBY:
285 case DRM_MODE_DPMS_SUSPEND:
286 case DRM_MODE_DPMS_OFF:
287 if (dev->num_crtcs > radeon_crtc->crtc_id)
288 drm_crtc_vblank_off(crtc);
289 if (radeon_crtc->enabled)
290 atombios_blank_crtc(crtc, ATOM_ENABLE);
291 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
292 atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
293 atombios_enable_crtc(crtc, ATOM_DISABLE);
294 radeon_crtc->enabled = false;
295 break;
296 }
297 /* adjust pm to dpms */
298 radeon_pm_compute_clocks(rdev);
299 }
300
301 static void
atombios_set_crtc_dtd_timing(struct drm_crtc * crtc,struct drm_display_mode * mode)302 atombios_set_crtc_dtd_timing(struct drm_crtc *crtc,
303 struct drm_display_mode *mode)
304 {
305 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
306 struct drm_device *dev = crtc->dev;
307 struct radeon_device *rdev = dev->dev_private;
308 SET_CRTC_USING_DTD_TIMING_PARAMETERS args;
309 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming);
310 u16 misc = 0;
311
312 memset(&args, 0, sizeof(args));
313 args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (radeon_crtc->h_border * 2));
314 args.usH_Blanking_Time =
315 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (radeon_crtc->h_border * 2));
316 args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (radeon_crtc->v_border * 2));
317 args.usV_Blanking_Time =
318 cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (radeon_crtc->v_border * 2));
319 args.usH_SyncOffset =
320 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + radeon_crtc->h_border);
321 args.usH_SyncWidth =
322 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
323 args.usV_SyncOffset =
324 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + radeon_crtc->v_border);
325 args.usV_SyncWidth =
326 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
327 args.ucH_Border = radeon_crtc->h_border;
328 args.ucV_Border = radeon_crtc->v_border;
329
330 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
331 misc |= ATOM_VSYNC_POLARITY;
332 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
333 misc |= ATOM_HSYNC_POLARITY;
334 if (mode->flags & DRM_MODE_FLAG_CSYNC)
335 misc |= ATOM_COMPOSITESYNC;
336 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
337 misc |= ATOM_INTERLACE;
338 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
339 misc |= ATOM_DOUBLE_CLOCK_MODE;
340 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
341 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
342
343 args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
344 args.ucCRTC = radeon_crtc->crtc_id;
345
346 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
347 }
348
atombios_crtc_set_timing(struct drm_crtc * crtc,struct drm_display_mode * mode)349 static void atombios_crtc_set_timing(struct drm_crtc *crtc,
350 struct drm_display_mode *mode)
351 {
352 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
353 struct drm_device *dev = crtc->dev;
354 struct radeon_device *rdev = dev->dev_private;
355 SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION args;
356 int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_Timing);
357 u16 misc = 0;
358
359 memset(&args, 0, sizeof(args));
360 args.usH_Total = cpu_to_le16(mode->crtc_htotal);
361 args.usH_Disp = cpu_to_le16(mode->crtc_hdisplay);
362 args.usH_SyncStart = cpu_to_le16(mode->crtc_hsync_start);
363 args.usH_SyncWidth =
364 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
365 args.usV_Total = cpu_to_le16(mode->crtc_vtotal);
366 args.usV_Disp = cpu_to_le16(mode->crtc_vdisplay);
367 args.usV_SyncStart = cpu_to_le16(mode->crtc_vsync_start);
368 args.usV_SyncWidth =
369 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
370
371 args.ucOverscanRight = radeon_crtc->h_border;
372 args.ucOverscanLeft = radeon_crtc->h_border;
373 args.ucOverscanBottom = radeon_crtc->v_border;
374 args.ucOverscanTop = radeon_crtc->v_border;
375
376 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
377 misc |= ATOM_VSYNC_POLARITY;
378 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
379 misc |= ATOM_HSYNC_POLARITY;
380 if (mode->flags & DRM_MODE_FLAG_CSYNC)
381 misc |= ATOM_COMPOSITESYNC;
382 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
383 misc |= ATOM_INTERLACE;
384 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
385 misc |= ATOM_DOUBLE_CLOCK_MODE;
386 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
387 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
388
389 args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
390 args.ucCRTC = radeon_crtc->crtc_id;
391
392 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
393 }
394
atombios_disable_ss(struct radeon_device * rdev,int pll_id)395 static void atombios_disable_ss(struct radeon_device *rdev, int pll_id)
396 {
397 u32 ss_cntl;
398
399 if (ASIC_IS_DCE4(rdev)) {
400 switch (pll_id) {
401 case ATOM_PPLL1:
402 ss_cntl = RREG32(EVERGREEN_P1PLL_SS_CNTL);
403 ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
404 WREG32(EVERGREEN_P1PLL_SS_CNTL, ss_cntl);
405 break;
406 case ATOM_PPLL2:
407 ss_cntl = RREG32(EVERGREEN_P2PLL_SS_CNTL);
408 ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
409 WREG32(EVERGREEN_P2PLL_SS_CNTL, ss_cntl);
410 break;
411 case ATOM_DCPLL:
412 case ATOM_PPLL_INVALID:
413 return;
414 }
415 } else if (ASIC_IS_AVIVO(rdev)) {
416 switch (pll_id) {
417 case ATOM_PPLL1:
418 ss_cntl = RREG32(AVIVO_P1PLL_INT_SS_CNTL);
419 ss_cntl &= ~1;
420 WREG32(AVIVO_P1PLL_INT_SS_CNTL, ss_cntl);
421 break;
422 case ATOM_PPLL2:
423 ss_cntl = RREG32(AVIVO_P2PLL_INT_SS_CNTL);
424 ss_cntl &= ~1;
425 WREG32(AVIVO_P2PLL_INT_SS_CNTL, ss_cntl);
426 break;
427 case ATOM_DCPLL:
428 case ATOM_PPLL_INVALID:
429 return;
430 }
431 }
432 }
433
434
435 union atom_enable_ss {
436 ENABLE_LVDS_SS_PARAMETERS lvds_ss;
437 ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
438 ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
439 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
440 ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
441 };
442
atombios_crtc_program_ss(struct radeon_device * rdev,int enable,int pll_id,int crtc_id,struct radeon_atom_ss * ss)443 static void atombios_crtc_program_ss(struct radeon_device *rdev,
444 int enable,
445 int pll_id,
446 int crtc_id,
447 struct radeon_atom_ss *ss)
448 {
449 unsigned i;
450 int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
451 union atom_enable_ss args;
452
453 if (enable) {
454 /* Don't mess with SS if percentage is 0 or external ss.
455 * SS is already disabled previously, and disabling it
456 * again can cause display problems if the pll is already
457 * programmed.
458 */
459 if (ss->percentage == 0)
460 return;
461 if (ss->type & ATOM_EXTERNAL_SS_MASK)
462 return;
463 } else {
464 for (i = 0; i < rdev->num_crtc; i++) {
465 if (rdev->mode_info.crtcs[i] &&
466 rdev->mode_info.crtcs[i]->enabled &&
467 i != crtc_id &&
468 pll_id == rdev->mode_info.crtcs[i]->pll_id) {
469 /* one other crtc is using this pll don't turn
470 * off spread spectrum as it might turn off
471 * display on active crtc
472 */
473 return;
474 }
475 }
476 }
477
478 memset(&args, 0, sizeof(args));
479
480 if (ASIC_IS_DCE5(rdev)) {
481 args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0);
482 args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
483 switch (pll_id) {
484 case ATOM_PPLL1:
485 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
486 break;
487 case ATOM_PPLL2:
488 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
489 break;
490 case ATOM_DCPLL:
491 args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
492 break;
493 case ATOM_PPLL_INVALID:
494 return;
495 }
496 args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
497 args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step);
498 args.v3.ucEnable = enable;
499 } else if (ASIC_IS_DCE4(rdev)) {
500 args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
501 args.v2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
502 switch (pll_id) {
503 case ATOM_PPLL1:
504 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P1PLL;
505 break;
506 case ATOM_PPLL2:
507 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P2PLL;
508 break;
509 case ATOM_DCPLL:
510 args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_DCPLL;
511 break;
512 case ATOM_PPLL_INVALID:
513 return;
514 }
515 args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
516 args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step);
517 args.v2.ucEnable = enable;
518 } else if (ASIC_IS_DCE3(rdev)) {
519 args.v1.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
520 args.v1.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
521 args.v1.ucSpreadSpectrumStep = ss->step;
522 args.v1.ucSpreadSpectrumDelay = ss->delay;
523 args.v1.ucSpreadSpectrumRange = ss->range;
524 args.v1.ucPpll = pll_id;
525 args.v1.ucEnable = enable;
526 } else if (ASIC_IS_AVIVO(rdev)) {
527 if ((enable == ATOM_DISABLE) || (ss->percentage == 0) ||
528 (ss->type & ATOM_EXTERNAL_SS_MASK)) {
529 atombios_disable_ss(rdev, pll_id);
530 return;
531 }
532 args.lvds_ss_2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
533 args.lvds_ss_2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
534 args.lvds_ss_2.ucSpreadSpectrumStep = ss->step;
535 args.lvds_ss_2.ucSpreadSpectrumDelay = ss->delay;
536 args.lvds_ss_2.ucSpreadSpectrumRange = ss->range;
537 args.lvds_ss_2.ucEnable = enable;
538 } else {
539 if (enable == ATOM_DISABLE) {
540 atombios_disable_ss(rdev, pll_id);
541 return;
542 }
543 args.lvds_ss.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
544 args.lvds_ss.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
545 args.lvds_ss.ucSpreadSpectrumStepSize_Delay = (ss->step & 3) << 2;
546 args.lvds_ss.ucSpreadSpectrumStepSize_Delay |= (ss->delay & 7) << 4;
547 args.lvds_ss.ucEnable = enable;
548 }
549 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
550 }
551
552 union adjust_pixel_clock {
553 ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
554 ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
555 };
556
atombios_adjust_pll(struct drm_crtc * crtc,struct drm_display_mode * mode)557 static u32 atombios_adjust_pll(struct drm_crtc *crtc,
558 struct drm_display_mode *mode)
559 {
560 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
561 struct drm_device *dev = crtc->dev;
562 struct radeon_device *rdev = dev->dev_private;
563 struct drm_encoder *encoder = radeon_crtc->encoder;
564 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
565 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
566 u32 adjusted_clock = mode->clock;
567 int encoder_mode = atombios_get_encoder_mode(encoder);
568 u32 dp_clock = mode->clock;
569 u32 clock = mode->clock;
570 int bpc = radeon_crtc->bpc;
571 bool is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
572
573 /* reset the pll flags */
574 radeon_crtc->pll_flags = 0;
575
576 if (ASIC_IS_AVIVO(rdev)) {
577 if ((rdev->family == CHIP_RS600) ||
578 (rdev->family == CHIP_RS690) ||
579 (rdev->family == CHIP_RS740))
580 radeon_crtc->pll_flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
581 RADEON_PLL_PREFER_CLOSEST_LOWER);
582
583 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000) /* range limits??? */
584 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
585 else
586 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
587
588 if (rdev->family < CHIP_RV770)
589 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
590 /* use frac fb div on APUs */
591 if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
592 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
593 /* use frac fb div on RS780/RS880 */
594 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
595 && !radeon_crtc->ss_enabled)
596 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
597 if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
598 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
599 } else {
600 radeon_crtc->pll_flags |= RADEON_PLL_LEGACY;
601
602 if (mode->clock > 200000) /* range limits??? */
603 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
604 else
605 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
606 }
607
608 if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
609 (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
610 if (connector) {
611 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
612 struct radeon_connector_atom_dig *dig_connector =
613 radeon_connector->con_priv;
614
615 dp_clock = dig_connector->dp_clock;
616 }
617 }
618
619 if (radeon_encoder->is_mst_encoder) {
620 struct radeon_encoder_mst *mst_enc = radeon_encoder->enc_priv;
621 struct radeon_connector_atom_dig *dig_connector = mst_enc->connector->con_priv;
622
623 dp_clock = dig_connector->dp_clock;
624 }
625
626 /* use recommended ref_div for ss */
627 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
628 if (radeon_crtc->ss_enabled) {
629 if (radeon_crtc->ss.refdiv) {
630 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
631 radeon_crtc->pll_reference_div = radeon_crtc->ss.refdiv;
632 if (ASIC_IS_AVIVO(rdev) &&
633 rdev->family != CHIP_RS780 &&
634 rdev->family != CHIP_RS880)
635 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
636 }
637 }
638 }
639
640 if (ASIC_IS_AVIVO(rdev)) {
641 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
642 if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
643 adjusted_clock = mode->clock * 2;
644 if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
645 radeon_crtc->pll_flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
646 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
647 radeon_crtc->pll_flags |= RADEON_PLL_IS_LCD;
648 } else {
649 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
650 radeon_crtc->pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
651 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS)
652 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
653 }
654
655 /* adjust pll for deep color modes */
656 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
657 switch (bpc) {
658 case 8:
659 default:
660 break;
661 case 10:
662 clock = (clock * 5) / 4;
663 break;
664 case 12:
665 clock = (clock * 3) / 2;
666 break;
667 case 16:
668 clock = clock * 2;
669 break;
670 }
671 }
672
673 /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock
674 * accordingly based on the encoder/transmitter to work around
675 * special hw requirements.
676 */
677 if (ASIC_IS_DCE3(rdev)) {
678 union adjust_pixel_clock args;
679 u8 frev, crev;
680 int index;
681
682 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
683 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
684 &crev))
685 return adjusted_clock;
686
687 memset(&args, 0, sizeof(args));
688
689 switch (frev) {
690 case 1:
691 switch (crev) {
692 case 1:
693 case 2:
694 args.v1.usPixelClock = cpu_to_le16(clock / 10);
695 args.v1.ucTransmitterID = radeon_encoder->encoder_id;
696 args.v1.ucEncodeMode = encoder_mode;
697 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
698 args.v1.ucConfig |=
699 ADJUST_DISPLAY_CONFIG_SS_ENABLE;
700
701 atom_execute_table(rdev->mode_info.atom_context,
702 index, (uint32_t *)&args);
703 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10;
704 break;
705 case 3:
706 args.v3.sInput.usPixelClock = cpu_to_le16(clock / 10);
707 args.v3.sInput.ucTransmitterID = radeon_encoder->encoder_id;
708 args.v3.sInput.ucEncodeMode = encoder_mode;
709 args.v3.sInput.ucDispPllConfig = 0;
710 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
711 args.v3.sInput.ucDispPllConfig |=
712 DISPPLL_CONFIG_SS_ENABLE;
713 if (ENCODER_MODE_IS_DP(encoder_mode)) {
714 args.v3.sInput.ucDispPllConfig |=
715 DISPPLL_CONFIG_COHERENT_MODE;
716 /* 16200 or 27000 */
717 args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10);
718 } else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
719 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
720 if (dig->coherent_mode)
721 args.v3.sInput.ucDispPllConfig |=
722 DISPPLL_CONFIG_COHERENT_MODE;
723 if (is_duallink)
724 args.v3.sInput.ucDispPllConfig |=
725 DISPPLL_CONFIG_DUAL_LINK;
726 }
727 if (radeon_encoder_get_dp_bridge_encoder_id(encoder) !=
728 ENCODER_OBJECT_ID_NONE)
729 args.v3.sInput.ucExtTransmitterID =
730 radeon_encoder_get_dp_bridge_encoder_id(encoder);
731 else
732 args.v3.sInput.ucExtTransmitterID = 0;
733
734 atom_execute_table(rdev->mode_info.atom_context,
735 index, (uint32_t *)&args);
736 adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10;
737 if (args.v3.sOutput.ucRefDiv) {
738 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
739 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
740 radeon_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv;
741 }
742 if (args.v3.sOutput.ucPostDiv) {
743 radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
744 radeon_crtc->pll_flags |= RADEON_PLL_USE_POST_DIV;
745 radeon_crtc->pll_post_div = args.v3.sOutput.ucPostDiv;
746 }
747 break;
748 default:
749 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
750 return adjusted_clock;
751 }
752 break;
753 default:
754 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
755 return adjusted_clock;
756 }
757 }
758 return adjusted_clock;
759 }
760
761 union set_pixel_clock {
762 SET_PIXEL_CLOCK_PS_ALLOCATION base;
763 PIXEL_CLOCK_PARAMETERS v1;
764 PIXEL_CLOCK_PARAMETERS_V2 v2;
765 PIXEL_CLOCK_PARAMETERS_V3 v3;
766 PIXEL_CLOCK_PARAMETERS_V5 v5;
767 PIXEL_CLOCK_PARAMETERS_V6 v6;
768 };
769
770 /* on DCE5, make sure the voltage is high enough to support the
771 * required disp clk.
772 */
atombios_crtc_set_disp_eng_pll(struct radeon_device * rdev,u32 dispclk)773 static void atombios_crtc_set_disp_eng_pll(struct radeon_device *rdev,
774 u32 dispclk)
775 {
776 u8 frev, crev;
777 int index;
778 union set_pixel_clock args;
779
780 memset(&args, 0, sizeof(args));
781
782 index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
783 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
784 &crev))
785 return;
786
787 switch (frev) {
788 case 1:
789 switch (crev) {
790 case 5:
791 /* if the default dcpll clock is specified,
792 * SetPixelClock provides the dividers
793 */
794 args.v5.ucCRTC = ATOM_CRTC_INVALID;
795 args.v5.usPixelClock = cpu_to_le16(dispclk);
796 args.v5.ucPpll = ATOM_DCPLL;
797 break;
798 case 6:
799 /* if the default dcpll clock is specified,
800 * SetPixelClock provides the dividers
801 */
802 args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk);
803 if (ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
804 args.v6.ucPpll = ATOM_EXT_PLL1;
805 else if (ASIC_IS_DCE6(rdev))
806 args.v6.ucPpll = ATOM_PPLL0;
807 else
808 args.v6.ucPpll = ATOM_DCPLL;
809 break;
810 default:
811 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
812 return;
813 }
814 break;
815 default:
816 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
817 return;
818 }
819 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
820 }
821
atombios_crtc_program_pll(struct drm_crtc * crtc,u32 crtc_id,int pll_id,u32 encoder_mode,u32 encoder_id,u32 clock,u32 ref_div,u32 fb_div,u32 frac_fb_div,u32 post_div,int bpc,bool ss_enabled,struct radeon_atom_ss * ss)822 static void atombios_crtc_program_pll(struct drm_crtc *crtc,
823 u32 crtc_id,
824 int pll_id,
825 u32 encoder_mode,
826 u32 encoder_id,
827 u32 clock,
828 u32 ref_div,
829 u32 fb_div,
830 u32 frac_fb_div,
831 u32 post_div,
832 int bpc,
833 bool ss_enabled,
834 struct radeon_atom_ss *ss)
835 {
836 struct drm_device *dev = crtc->dev;
837 struct radeon_device *rdev = dev->dev_private;
838 u8 frev, crev;
839 int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
840 union set_pixel_clock args;
841
842 memset(&args, 0, sizeof(args));
843
844 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
845 &crev))
846 return;
847
848 switch (frev) {
849 case 1:
850 switch (crev) {
851 case 1:
852 if (clock == ATOM_DISABLE)
853 return;
854 args.v1.usPixelClock = cpu_to_le16(clock / 10);
855 args.v1.usRefDiv = cpu_to_le16(ref_div);
856 args.v1.usFbDiv = cpu_to_le16(fb_div);
857 args.v1.ucFracFbDiv = frac_fb_div;
858 args.v1.ucPostDiv = post_div;
859 args.v1.ucPpll = pll_id;
860 args.v1.ucCRTC = crtc_id;
861 args.v1.ucRefDivSrc = 1;
862 break;
863 case 2:
864 args.v2.usPixelClock = cpu_to_le16(clock / 10);
865 args.v2.usRefDiv = cpu_to_le16(ref_div);
866 args.v2.usFbDiv = cpu_to_le16(fb_div);
867 args.v2.ucFracFbDiv = frac_fb_div;
868 args.v2.ucPostDiv = post_div;
869 args.v2.ucPpll = pll_id;
870 args.v2.ucCRTC = crtc_id;
871 args.v2.ucRefDivSrc = 1;
872 break;
873 case 3:
874 args.v3.usPixelClock = cpu_to_le16(clock / 10);
875 args.v3.usRefDiv = cpu_to_le16(ref_div);
876 args.v3.usFbDiv = cpu_to_le16(fb_div);
877 args.v3.ucFracFbDiv = frac_fb_div;
878 args.v3.ucPostDiv = post_div;
879 args.v3.ucPpll = pll_id;
880 if (crtc_id == ATOM_CRTC2)
881 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2;
882 else
883 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1;
884 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
885 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC;
886 args.v3.ucTransmitterId = encoder_id;
887 args.v3.ucEncoderMode = encoder_mode;
888 break;
889 case 5:
890 args.v5.ucCRTC = crtc_id;
891 args.v5.usPixelClock = cpu_to_le16(clock / 10);
892 args.v5.ucRefDiv = ref_div;
893 args.v5.usFbDiv = cpu_to_le16(fb_div);
894 args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
895 args.v5.ucPostDiv = post_div;
896 args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
897 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
898 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
899 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
900 switch (bpc) {
901 case 8:
902 default:
903 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
904 break;
905 case 10:
906 /* yes this is correct, the atom define is wrong */
907 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP;
908 break;
909 case 12:
910 /* yes this is correct, the atom define is wrong */
911 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
912 break;
913 }
914 }
915 args.v5.ucTransmitterID = encoder_id;
916 args.v5.ucEncoderMode = encoder_mode;
917 args.v5.ucPpll = pll_id;
918 break;
919 case 6:
920 args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10);
921 args.v6.ucRefDiv = ref_div;
922 args.v6.usFbDiv = cpu_to_le16(fb_div);
923 args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
924 args.v6.ucPostDiv = post_div;
925 args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
926 if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
927 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
928 if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
929 switch (bpc) {
930 case 8:
931 default:
932 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
933 break;
934 case 10:
935 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6;
936 break;
937 case 12:
938 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6;
939 break;
940 case 16:
941 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
942 break;
943 }
944 }
945 args.v6.ucTransmitterID = encoder_id;
946 args.v6.ucEncoderMode = encoder_mode;
947 args.v6.ucPpll = pll_id;
948 break;
949 default:
950 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
951 return;
952 }
953 break;
954 default:
955 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
956 return;
957 }
958
959 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
960 }
961
atombios_crtc_prepare_pll(struct drm_crtc * crtc,struct drm_display_mode * mode)962 static bool atombios_crtc_prepare_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
963 {
964 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
965 struct drm_device *dev = crtc->dev;
966 struct radeon_device *rdev = dev->dev_private;
967 struct radeon_encoder *radeon_encoder =
968 to_radeon_encoder(radeon_crtc->encoder);
969 int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
970
971 radeon_crtc->bpc = 8;
972 radeon_crtc->ss_enabled = false;
973
974 if (radeon_encoder->is_mst_encoder) {
975 radeon_dp_mst_prepare_pll(crtc, mode);
976 } else if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
977 (radeon_encoder_get_dp_bridge_encoder_id(radeon_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) {
978 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
979 struct drm_connector *connector =
980 radeon_get_connector_for_encoder(radeon_crtc->encoder);
981 struct radeon_connector *radeon_connector =
982 to_radeon_connector(connector);
983 struct radeon_connector_atom_dig *dig_connector =
984 radeon_connector->con_priv;
985 int dp_clock;
986
987 /* Assign mode clock for hdmi deep color max clock limit check */
988 radeon_connector->pixelclock_for_modeset = mode->clock;
989 radeon_crtc->bpc = radeon_get_monitor_bpc(connector);
990
991 switch (encoder_mode) {
992 case ATOM_ENCODER_MODE_DP_MST:
993 case ATOM_ENCODER_MODE_DP:
994 /* DP/eDP */
995 dp_clock = dig_connector->dp_clock / 10;
996 if (ASIC_IS_DCE4(rdev))
997 radeon_crtc->ss_enabled =
998 radeon_atombios_get_asic_ss_info(rdev, &radeon_crtc->ss,
999 ASIC_INTERNAL_SS_ON_DP,
1000 dp_clock);
1001 else {
1002 if (dp_clock == 16200) {
1003 radeon_crtc->ss_enabled =
1004 radeon_atombios_get_ppll_ss_info(rdev,
1005 &radeon_crtc->ss,
1006 ATOM_DP_SS_ID2);
1007 if (!radeon_crtc->ss_enabled)
1008 radeon_crtc->ss_enabled =
1009 radeon_atombios_get_ppll_ss_info(rdev,
1010 &radeon_crtc->ss,
1011 ATOM_DP_SS_ID1);
1012 } else {
1013 radeon_crtc->ss_enabled =
1014 radeon_atombios_get_ppll_ss_info(rdev,
1015 &radeon_crtc->ss,
1016 ATOM_DP_SS_ID1);
1017 }
1018 /* disable spread spectrum on DCE3 DP */
1019 radeon_crtc->ss_enabled = false;
1020 }
1021 break;
1022 case ATOM_ENCODER_MODE_LVDS:
1023 if (ASIC_IS_DCE4(rdev))
1024 radeon_crtc->ss_enabled =
1025 radeon_atombios_get_asic_ss_info(rdev,
1026 &radeon_crtc->ss,
1027 dig->lcd_ss_id,
1028 mode->clock / 10);
1029 else
1030 radeon_crtc->ss_enabled =
1031 radeon_atombios_get_ppll_ss_info(rdev,
1032 &radeon_crtc->ss,
1033 dig->lcd_ss_id);
1034 break;
1035 case ATOM_ENCODER_MODE_DVI:
1036 if (ASIC_IS_DCE4(rdev))
1037 radeon_crtc->ss_enabled =
1038 radeon_atombios_get_asic_ss_info(rdev,
1039 &radeon_crtc->ss,
1040 ASIC_INTERNAL_SS_ON_TMDS,
1041 mode->clock / 10);
1042 break;
1043 case ATOM_ENCODER_MODE_HDMI:
1044 if (ASIC_IS_DCE4(rdev))
1045 radeon_crtc->ss_enabled =
1046 radeon_atombios_get_asic_ss_info(rdev,
1047 &radeon_crtc->ss,
1048 ASIC_INTERNAL_SS_ON_HDMI,
1049 mode->clock / 10);
1050 break;
1051 default:
1052 break;
1053 }
1054 }
1055
1056 /* adjust pixel clock as needed */
1057 radeon_crtc->adjusted_clock = atombios_adjust_pll(crtc, mode);
1058
1059 return true;
1060 }
1061
atombios_crtc_set_pll(struct drm_crtc * crtc,struct drm_display_mode * mode)1062 static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
1063 {
1064 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1065 struct drm_device *dev = crtc->dev;
1066 struct radeon_device *rdev = dev->dev_private;
1067 struct radeon_encoder *radeon_encoder =
1068 to_radeon_encoder(radeon_crtc->encoder);
1069 u32 pll_clock = mode->clock;
1070 u32 clock = mode->clock;
1071 u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
1072 struct radeon_pll *pll;
1073 int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
1074
1075 /* pass the actual clock to atombios_crtc_program_pll for DCE5,6 for HDMI */
1076 if (ASIC_IS_DCE5(rdev) &&
1077 (encoder_mode == ATOM_ENCODER_MODE_HDMI) &&
1078 (radeon_crtc->bpc > 8))
1079 clock = radeon_crtc->adjusted_clock;
1080
1081 switch (radeon_crtc->pll_id) {
1082 case ATOM_PPLL1:
1083 pll = &rdev->clock.p1pll;
1084 break;
1085 case ATOM_PPLL2:
1086 pll = &rdev->clock.p2pll;
1087 break;
1088 case ATOM_DCPLL:
1089 case ATOM_PPLL_INVALID:
1090 default:
1091 pll = &rdev->clock.dcpll;
1092 break;
1093 }
1094
1095 /* update pll params */
1096 pll->flags = radeon_crtc->pll_flags;
1097 pll->reference_div = radeon_crtc->pll_reference_div;
1098 pll->post_div = radeon_crtc->pll_post_div;
1099
1100 if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
1101 /* TV seems to prefer the legacy algo on some boards */
1102 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1103 &fb_div, &frac_fb_div, &ref_div, &post_div);
1104 else if (ASIC_IS_AVIVO(rdev))
1105 radeon_compute_pll_avivo(pll, radeon_crtc->adjusted_clock, &pll_clock,
1106 &fb_div, &frac_fb_div, &ref_div, &post_div);
1107 else
1108 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1109 &fb_div, &frac_fb_div, &ref_div, &post_div);
1110
1111 atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id,
1112 radeon_crtc->crtc_id, &radeon_crtc->ss);
1113
1114 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1115 encoder_mode, radeon_encoder->encoder_id, clock,
1116 ref_div, fb_div, frac_fb_div, post_div,
1117 radeon_crtc->bpc, radeon_crtc->ss_enabled, &radeon_crtc->ss);
1118
1119 if (radeon_crtc->ss_enabled) {
1120 /* calculate ss amount and step size */
1121 if (ASIC_IS_DCE4(rdev)) {
1122 u32 step_size;
1123 u32 amount = (((fb_div * 10) + frac_fb_div) *
1124 (u32)radeon_crtc->ss.percentage) /
1125 (100 * (u32)radeon_crtc->ss.percentage_divider);
1126 radeon_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK;
1127 radeon_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) &
1128 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK;
1129 if (radeon_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD)
1130 step_size = (4 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1131 (125 * 25 * pll->reference_freq / 100);
1132 else
1133 step_size = (2 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1134 (125 * 25 * pll->reference_freq / 100);
1135 radeon_crtc->ss.step = step_size;
1136 }
1137
1138 atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id,
1139 radeon_crtc->crtc_id, &radeon_crtc->ss);
1140 }
1141 }
1142
dce4_crtc_do_set_base(struct drm_crtc * crtc,struct drm_framebuffer * fb,int x,int y,int atomic)1143 static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
1144 struct drm_framebuffer *fb,
1145 int x, int y, int atomic)
1146 {
1147 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1148 struct drm_device *dev = crtc->dev;
1149 struct radeon_device *rdev = dev->dev_private;
1150 struct drm_framebuffer *target_fb;
1151 struct drm_gem_object *obj;
1152 struct radeon_bo *rbo;
1153 uint64_t fb_location;
1154 uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1155 unsigned bankw, bankh, mtaspect, tile_split;
1156 u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
1157 u32 tmp, viewport_w, viewport_h;
1158 int r;
1159 bool bypass_lut = false;
1160 struct drm_format_name_buf format_name;
1161
1162 /* no fb bound */
1163 if (!atomic && !crtc->primary->fb) {
1164 DRM_DEBUG_KMS("No FB bound\n");
1165 return 0;
1166 }
1167
1168 if (atomic)
1169 target_fb = fb;
1170 else
1171 target_fb = crtc->primary->fb;
1172
1173 /* If atomic, assume fb object is pinned & idle & fenced and
1174 * just update base pointers
1175 */
1176 obj = target_fb->obj[0];
1177 rbo = gem_to_radeon_bo(obj);
1178 r = radeon_bo_reserve(rbo, false);
1179 if (unlikely(r != 0))
1180 return r;
1181
1182 if (atomic)
1183 fb_location = radeon_bo_gpu_offset(rbo);
1184 else {
1185 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1186 if (unlikely(r != 0)) {
1187 radeon_bo_unreserve(rbo);
1188 return -EINVAL;
1189 }
1190 }
1191
1192 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1193 radeon_bo_unreserve(rbo);
1194
1195 switch (target_fb->format->format) {
1196 case DRM_FORMAT_C8:
1197 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
1198 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
1199 break;
1200 case DRM_FORMAT_XRGB4444:
1201 case DRM_FORMAT_ARGB4444:
1202 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1203 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB4444));
1204 #ifdef __BIG_ENDIAN
1205 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1206 #endif
1207 break;
1208 case DRM_FORMAT_XRGB1555:
1209 case DRM_FORMAT_ARGB1555:
1210 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1211 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
1212 #ifdef __BIG_ENDIAN
1213 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1214 #endif
1215 break;
1216 case DRM_FORMAT_BGRX5551:
1217 case DRM_FORMAT_BGRA5551:
1218 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1219 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA5551));
1220 #ifdef __BIG_ENDIAN
1221 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1222 #endif
1223 break;
1224 case DRM_FORMAT_RGB565:
1225 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1226 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
1227 #ifdef __BIG_ENDIAN
1228 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1229 #endif
1230 break;
1231 case DRM_FORMAT_XRGB8888:
1232 case DRM_FORMAT_ARGB8888:
1233 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1234 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1235 #ifdef __BIG_ENDIAN
1236 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1237 #endif
1238 break;
1239 case DRM_FORMAT_XRGB2101010:
1240 case DRM_FORMAT_ARGB2101010:
1241 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1242 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB2101010));
1243 #ifdef __BIG_ENDIAN
1244 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1245 #endif
1246 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1247 bypass_lut = true;
1248 break;
1249 case DRM_FORMAT_BGRX1010102:
1250 case DRM_FORMAT_BGRA1010102:
1251 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1252 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA1010102));
1253 #ifdef __BIG_ENDIAN
1254 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1255 #endif
1256 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1257 bypass_lut = true;
1258 break;
1259 case DRM_FORMAT_XBGR8888:
1260 case DRM_FORMAT_ABGR8888:
1261 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1262 EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1263 fb_swap = (EVERGREEN_GRPH_RED_CROSSBAR(EVERGREEN_GRPH_RED_SEL_B) |
1264 EVERGREEN_GRPH_BLUE_CROSSBAR(EVERGREEN_GRPH_BLUE_SEL_R));
1265 #ifdef __BIG_ENDIAN
1266 fb_swap |= EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1267 #endif
1268 break;
1269 default:
1270 DRM_ERROR("Unsupported screen format %s\n",
1271 drm_get_format_name(target_fb->format->format, &format_name));
1272 return -EINVAL;
1273 }
1274
1275 if (tiling_flags & RADEON_TILING_MACRO) {
1276 evergreen_tiling_fields(tiling_flags, &bankw, &bankh, &mtaspect, &tile_split);
1277
1278 /* Set NUM_BANKS. */
1279 if (rdev->family >= CHIP_TAHITI) {
1280 unsigned index, num_banks;
1281
1282 if (rdev->family >= CHIP_BONAIRE) {
1283 unsigned tileb, tile_split_bytes;
1284
1285 /* Calculate the macrotile mode index. */
1286 tile_split_bytes = 64 << tile_split;
1287 tileb = 8 * 8 * target_fb->format->cpp[0];
1288 tileb = min(tile_split_bytes, tileb);
1289
1290 for (index = 0; tileb > 64; index++)
1291 tileb >>= 1;
1292
1293 if (index >= 16) {
1294 DRM_ERROR("Wrong screen bpp (%u) or tile split (%u)\n",
1295 target_fb->format->cpp[0] * 8,
1296 tile_split);
1297 return -EINVAL;
1298 }
1299
1300 num_banks = (rdev->config.cik.macrotile_mode_array[index] >> 6) & 0x3;
1301 } else {
1302 switch (target_fb->format->cpp[0] * 8) {
1303 case 8:
1304 index = 10;
1305 break;
1306 case 16:
1307 index = SI_TILE_MODE_COLOR_2D_SCANOUT_16BPP;
1308 break;
1309 default:
1310 case 32:
1311 index = SI_TILE_MODE_COLOR_2D_SCANOUT_32BPP;
1312 break;
1313 }
1314
1315 num_banks = (rdev->config.si.tile_mode_array[index] >> 20) & 0x3;
1316 }
1317
1318 fb_format |= EVERGREEN_GRPH_NUM_BANKS(num_banks);
1319 } else {
1320 /* NI and older. */
1321 if (rdev->family >= CHIP_CAYMAN)
1322 tmp = rdev->config.cayman.tile_config;
1323 else
1324 tmp = rdev->config.evergreen.tile_config;
1325
1326 switch ((tmp & 0xf0) >> 4) {
1327 case 0: /* 4 banks */
1328 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_4_BANK);
1329 break;
1330 case 1: /* 8 banks */
1331 default:
1332 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_8_BANK);
1333 break;
1334 case 2: /* 16 banks */
1335 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_16_BANK);
1336 break;
1337 }
1338 }
1339
1340 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
1341 fb_format |= EVERGREEN_GRPH_TILE_SPLIT(tile_split);
1342 fb_format |= EVERGREEN_GRPH_BANK_WIDTH(bankw);
1343 fb_format |= EVERGREEN_GRPH_BANK_HEIGHT(bankh);
1344 fb_format |= EVERGREEN_GRPH_MACRO_TILE_ASPECT(mtaspect);
1345 if (rdev->family >= CHIP_BONAIRE) {
1346 /* XXX need to know more about the surface tiling mode */
1347 fb_format |= CIK_GRPH_MICRO_TILE_MODE(CIK_DISPLAY_MICRO_TILING);
1348 }
1349 } else if (tiling_flags & RADEON_TILING_MICRO)
1350 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
1351
1352 if (rdev->family >= CHIP_BONAIRE) {
1353 /* Read the pipe config from the 2D TILED SCANOUT mode.
1354 * It should be the same for the other modes too, but not all
1355 * modes set the pipe config field. */
1356 u32 pipe_config = (rdev->config.cik.tile_mode_array[10] >> 6) & 0x1f;
1357
1358 fb_format |= CIK_GRPH_PIPE_CONFIG(pipe_config);
1359 } else if ((rdev->family == CHIP_TAHITI) ||
1360 (rdev->family == CHIP_PITCAIRN))
1361 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
1362 else if ((rdev->family == CHIP_VERDE) ||
1363 (rdev->family == CHIP_OLAND) ||
1364 (rdev->family == CHIP_HAINAN)) /* for completeness. HAINAN has no display hw */
1365 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
1366
1367 switch (radeon_crtc->crtc_id) {
1368 case 0:
1369 WREG32(AVIVO_D1VGA_CONTROL, 0);
1370 break;
1371 case 1:
1372 WREG32(AVIVO_D2VGA_CONTROL, 0);
1373 break;
1374 case 2:
1375 WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1376 break;
1377 case 3:
1378 WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1379 break;
1380 case 4:
1381 WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1382 break;
1383 case 5:
1384 WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1385 break;
1386 default:
1387 break;
1388 }
1389
1390 /* Make sure surface address is updated at vertical blank rather than
1391 * horizontal blank
1392 */
1393 WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1394
1395 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1396 upper_32_bits(fb_location));
1397 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1398 upper_32_bits(fb_location));
1399 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1400 (u32)fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1401 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1402 (u32) fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1403 WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1404 WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1405
1406 /*
1407 * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
1408 * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
1409 * retain the full precision throughout the pipeline.
1410 */
1411 WREG32_P(EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL + radeon_crtc->crtc_offset,
1412 (bypass_lut ? EVERGREEN_LUT_10BIT_BYPASS_EN : 0),
1413 ~EVERGREEN_LUT_10BIT_BYPASS_EN);
1414
1415 if (bypass_lut)
1416 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1417
1418 WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1419 WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1420 WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
1421 WREG32(EVERGREEN_GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1422 WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1423 WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1424
1425 fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1426 WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1427 WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1428
1429 if (rdev->family >= CHIP_BONAIRE)
1430 WREG32(CIK_LB_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1431 target_fb->height);
1432 else
1433 WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1434 target_fb->height);
1435 x &= ~3;
1436 y &= ~1;
1437 WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
1438 (x << 16) | y);
1439 viewport_w = crtc->mode.hdisplay;
1440 viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1441 if ((rdev->family >= CHIP_BONAIRE) &&
1442 (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
1443 viewport_h *= 2;
1444 WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1445 (viewport_w << 16) | viewport_h);
1446
1447 /* set pageflip to happen anywhere in vblank interval */
1448 WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1449
1450 if (!atomic && fb && fb != crtc->primary->fb) {
1451 rbo = gem_to_radeon_bo(fb->obj[0]);
1452 r = radeon_bo_reserve(rbo, false);
1453 if (unlikely(r != 0))
1454 return r;
1455 radeon_bo_unpin(rbo);
1456 radeon_bo_unreserve(rbo);
1457 }
1458
1459 /* Bytes per pixel may have changed */
1460 radeon_bandwidth_update(rdev);
1461
1462 return 0;
1463 }
1464
avivo_crtc_do_set_base(struct drm_crtc * crtc,struct drm_framebuffer * fb,int x,int y,int atomic)1465 static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
1466 struct drm_framebuffer *fb,
1467 int x, int y, int atomic)
1468 {
1469 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1470 struct drm_device *dev = crtc->dev;
1471 struct radeon_device *rdev = dev->dev_private;
1472 struct drm_gem_object *obj;
1473 struct radeon_bo *rbo;
1474 struct drm_framebuffer *target_fb;
1475 uint64_t fb_location;
1476 uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1477 u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
1478 u32 viewport_w, viewport_h;
1479 int r;
1480 bool bypass_lut = false;
1481 struct drm_format_name_buf format_name;
1482
1483 /* no fb bound */
1484 if (!atomic && !crtc->primary->fb) {
1485 DRM_DEBUG_KMS("No FB bound\n");
1486 return 0;
1487 }
1488
1489 if (atomic)
1490 target_fb = fb;
1491 else
1492 target_fb = crtc->primary->fb;
1493
1494 obj = target_fb->obj[0];
1495 rbo = gem_to_radeon_bo(obj);
1496 r = radeon_bo_reserve(rbo, false);
1497 if (unlikely(r != 0))
1498 return r;
1499
1500 /* If atomic, assume fb object is pinned & idle & fenced and
1501 * just update base pointers
1502 */
1503 if (atomic)
1504 fb_location = radeon_bo_gpu_offset(rbo);
1505 else {
1506 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1507 if (unlikely(r != 0)) {
1508 radeon_bo_unreserve(rbo);
1509 return -EINVAL;
1510 }
1511 }
1512 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1513 radeon_bo_unreserve(rbo);
1514
1515 switch (target_fb->format->format) {
1516 case DRM_FORMAT_C8:
1517 fb_format =
1518 AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
1519 AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
1520 break;
1521 case DRM_FORMAT_XRGB4444:
1522 case DRM_FORMAT_ARGB4444:
1523 fb_format =
1524 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1525 AVIVO_D1GRPH_CONTROL_16BPP_ARGB4444;
1526 #ifdef __BIG_ENDIAN
1527 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1528 #endif
1529 break;
1530 case DRM_FORMAT_XRGB1555:
1531 fb_format =
1532 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1533 AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
1534 #ifdef __BIG_ENDIAN
1535 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1536 #endif
1537 break;
1538 case DRM_FORMAT_RGB565:
1539 fb_format =
1540 AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1541 AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
1542 #ifdef __BIG_ENDIAN
1543 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1544 #endif
1545 break;
1546 case DRM_FORMAT_XRGB8888:
1547 case DRM_FORMAT_ARGB8888:
1548 fb_format =
1549 AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1550 AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1551 #ifdef __BIG_ENDIAN
1552 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1553 #endif
1554 break;
1555 case DRM_FORMAT_XRGB2101010:
1556 case DRM_FORMAT_ARGB2101010:
1557 fb_format =
1558 AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1559 AVIVO_D1GRPH_CONTROL_32BPP_ARGB2101010;
1560 #ifdef __BIG_ENDIAN
1561 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1562 #endif
1563 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1564 bypass_lut = true;
1565 break;
1566 case DRM_FORMAT_XBGR8888:
1567 case DRM_FORMAT_ABGR8888:
1568 fb_format =
1569 AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1570 AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1571 if (rdev->family >= CHIP_R600)
1572 fb_swap =
1573 (R600_D1GRPH_RED_CROSSBAR(R600_D1GRPH_RED_SEL_B) |
1574 R600_D1GRPH_BLUE_CROSSBAR(R600_D1GRPH_BLUE_SEL_R));
1575 else /* DCE1 (R5xx) */
1576 fb_format |= AVIVO_D1GRPH_SWAP_RB;
1577 #ifdef __BIG_ENDIAN
1578 fb_swap |= R600_D1GRPH_SWAP_ENDIAN_32BIT;
1579 #endif
1580 break;
1581 default:
1582 DRM_ERROR("Unsupported screen format %s\n",
1583 drm_get_format_name(target_fb->format->format, &format_name));
1584 return -EINVAL;
1585 }
1586
1587 if (rdev->family >= CHIP_R600) {
1588 if (tiling_flags & RADEON_TILING_MACRO)
1589 fb_format |= R600_D1GRPH_ARRAY_MODE_2D_TILED_THIN1;
1590 else if (tiling_flags & RADEON_TILING_MICRO)
1591 fb_format |= R600_D1GRPH_ARRAY_MODE_1D_TILED_THIN1;
1592 } else {
1593 if (tiling_flags & RADEON_TILING_MACRO)
1594 fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
1595
1596 if (tiling_flags & RADEON_TILING_MICRO)
1597 fb_format |= AVIVO_D1GRPH_TILED;
1598 }
1599
1600 if (radeon_crtc->crtc_id == 0)
1601 WREG32(AVIVO_D1VGA_CONTROL, 0);
1602 else
1603 WREG32(AVIVO_D2VGA_CONTROL, 0);
1604
1605 /* Make sure surface address is update at vertical blank rather than
1606 * horizontal blank
1607 */
1608 WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1609
1610 if (rdev->family >= CHIP_RV770) {
1611 if (radeon_crtc->crtc_id) {
1612 WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1613 WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1614 } else {
1615 WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1616 WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1617 }
1618 }
1619 WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1620 (u32) fb_location);
1621 WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
1622 radeon_crtc->crtc_offset, (u32) fb_location);
1623 WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1624 if (rdev->family >= CHIP_R600)
1625 WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1626
1627 /* LUT only has 256 slots for 8 bpc fb. Bypass for > 8 bpc scanout for precision */
1628 WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset,
1629 (bypass_lut ? AVIVO_LUT_10BIT_BYPASS_EN : 0), ~AVIVO_LUT_10BIT_BYPASS_EN);
1630
1631 if (bypass_lut)
1632 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1633
1634 WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1635 WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1636 WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
1637 WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1638 WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1639 WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1640
1641 fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1642 WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1643 WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1644
1645 WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1646 target_fb->height);
1647 x &= ~3;
1648 y &= ~1;
1649 WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
1650 (x << 16) | y);
1651 viewport_w = crtc->mode.hdisplay;
1652 viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1653 WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1654 (viewport_w << 16) | viewport_h);
1655
1656 /* set pageflip to happen only at start of vblank interval (front porch) */
1657 WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 3);
1658
1659 if (!atomic && fb && fb != crtc->primary->fb) {
1660 rbo = gem_to_radeon_bo(fb->obj[0]);
1661 r = radeon_bo_reserve(rbo, false);
1662 if (unlikely(r != 0))
1663 return r;
1664 radeon_bo_unpin(rbo);
1665 radeon_bo_unreserve(rbo);
1666 }
1667
1668 /* Bytes per pixel may have changed */
1669 radeon_bandwidth_update(rdev);
1670
1671 return 0;
1672 }
1673
atombios_crtc_set_base(struct drm_crtc * crtc,int x,int y,struct drm_framebuffer * old_fb)1674 int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
1675 struct drm_framebuffer *old_fb)
1676 {
1677 struct drm_device *dev = crtc->dev;
1678 struct radeon_device *rdev = dev->dev_private;
1679
1680 if (ASIC_IS_DCE4(rdev))
1681 return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
1682 else if (ASIC_IS_AVIVO(rdev))
1683 return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
1684 else
1685 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
1686 }
1687
atombios_crtc_set_base_atomic(struct drm_crtc * crtc,struct drm_framebuffer * fb,int x,int y,enum mode_set_atomic state)1688 int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
1689 struct drm_framebuffer *fb,
1690 int x, int y, enum mode_set_atomic state)
1691 {
1692 struct drm_device *dev = crtc->dev;
1693 struct radeon_device *rdev = dev->dev_private;
1694
1695 if (ASIC_IS_DCE4(rdev))
1696 return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
1697 else if (ASIC_IS_AVIVO(rdev))
1698 return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
1699 else
1700 return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
1701 }
1702
1703 /* properly set additional regs when using atombios */
radeon_legacy_atom_fixup(struct drm_crtc * crtc)1704 static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
1705 {
1706 struct drm_device *dev = crtc->dev;
1707 struct radeon_device *rdev = dev->dev_private;
1708 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1709 u32 disp_merge_cntl;
1710
1711 switch (radeon_crtc->crtc_id) {
1712 case 0:
1713 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
1714 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
1715 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
1716 break;
1717 case 1:
1718 disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
1719 disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
1720 WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
1721 WREG32(RADEON_FP_H2_SYNC_STRT_WID, RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
1722 WREG32(RADEON_FP_V2_SYNC_STRT_WID, RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
1723 break;
1724 }
1725 }
1726
1727 /**
1728 * radeon_get_pll_use_mask - look up a mask of which pplls are in use
1729 *
1730 * @crtc: drm crtc
1731 *
1732 * Returns the mask of which PPLLs (Pixel PLLs) are in use.
1733 */
radeon_get_pll_use_mask(struct drm_crtc * crtc)1734 static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc)
1735 {
1736 struct drm_device *dev = crtc->dev;
1737 struct drm_crtc *test_crtc;
1738 struct radeon_crtc *test_radeon_crtc;
1739 u32 pll_in_use = 0;
1740
1741 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1742 if (crtc == test_crtc)
1743 continue;
1744
1745 test_radeon_crtc = to_radeon_crtc(test_crtc);
1746 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1747 pll_in_use |= (1 << test_radeon_crtc->pll_id);
1748 }
1749 return pll_in_use;
1750 }
1751
1752 /**
1753 * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP
1754 *
1755 * @crtc: drm crtc
1756 *
1757 * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is
1758 * also in DP mode. For DP, a single PPLL can be used for all DP
1759 * crtcs/encoders.
1760 */
radeon_get_shared_dp_ppll(struct drm_crtc * crtc)1761 static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
1762 {
1763 struct drm_device *dev = crtc->dev;
1764 struct radeon_device *rdev = dev->dev_private;
1765 struct drm_crtc *test_crtc;
1766 struct radeon_crtc *test_radeon_crtc;
1767
1768 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1769 if (crtc == test_crtc)
1770 continue;
1771 test_radeon_crtc = to_radeon_crtc(test_crtc);
1772 if (test_radeon_crtc->encoder &&
1773 ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1774 /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1775 if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1776 test_radeon_crtc->pll_id == ATOM_PPLL2)
1777 continue;
1778 /* for DP use the same PLL for all */
1779 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1780 return test_radeon_crtc->pll_id;
1781 }
1782 }
1783 return ATOM_PPLL_INVALID;
1784 }
1785
1786 /**
1787 * radeon_get_shared_nondp_ppll - return the PPLL used by another non-DP crtc
1788 *
1789 * @crtc: drm crtc
1790 * @encoder: drm encoder
1791 *
1792 * Returns the PPLL (Pixel PLL) used by another non-DP crtc/encoder which can
1793 * be shared (i.e., same clock).
1794 */
radeon_get_shared_nondp_ppll(struct drm_crtc * crtc)1795 static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
1796 {
1797 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1798 struct drm_device *dev = crtc->dev;
1799 struct radeon_device *rdev = dev->dev_private;
1800 struct drm_crtc *test_crtc;
1801 struct radeon_crtc *test_radeon_crtc;
1802 u32 adjusted_clock, test_adjusted_clock;
1803
1804 adjusted_clock = radeon_crtc->adjusted_clock;
1805
1806 if (adjusted_clock == 0)
1807 return ATOM_PPLL_INVALID;
1808
1809 list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1810 if (crtc == test_crtc)
1811 continue;
1812 test_radeon_crtc = to_radeon_crtc(test_crtc);
1813 if (test_radeon_crtc->encoder &&
1814 !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1815 /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1816 if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1817 test_radeon_crtc->pll_id == ATOM_PPLL2)
1818 continue;
1819 /* check if we are already driving this connector with another crtc */
1820 if (test_radeon_crtc->connector == radeon_crtc->connector) {
1821 /* if we are, return that pll */
1822 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1823 return test_radeon_crtc->pll_id;
1824 }
1825 /* for non-DP check the clock */
1826 test_adjusted_clock = test_radeon_crtc->adjusted_clock;
1827 if ((crtc->mode.clock == test_crtc->mode.clock) &&
1828 (adjusted_clock == test_adjusted_clock) &&
1829 (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
1830 (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
1831 return test_radeon_crtc->pll_id;
1832 }
1833 }
1834 return ATOM_PPLL_INVALID;
1835 }
1836
1837 /**
1838 * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc.
1839 *
1840 * @crtc: drm crtc
1841 *
1842 * Returns the PPLL (Pixel PLL) to be used by the crtc. For DP monitors
1843 * a single PPLL can be used for all DP crtcs/encoders. For non-DP
1844 * monitors a dedicated PPLL must be used. If a particular board has
1845 * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
1846 * as there is no need to program the PLL itself. If we are not able to
1847 * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
1848 * avoid messing up an existing monitor.
1849 *
1850 * Asic specific PLL information
1851 *
1852 * DCE 8.x
1853 * KB/KV
1854 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP)
1855 * CI
1856 * - PPLL0, PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1857 *
1858 * DCE 6.1
1859 * - PPLL2 is only available to UNIPHYA (both DP and non-DP)
1860 * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP)
1861 *
1862 * DCE 6.0
1863 * - PPLL0 is available to all UNIPHY (DP only)
1864 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1865 *
1866 * DCE 5.0
1867 * - DCPLL is available to all UNIPHY (DP only)
1868 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1869 *
1870 * DCE 3.0/4.0/4.1
1871 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1872 *
1873 */
radeon_atom_pick_pll(struct drm_crtc * crtc)1874 static int radeon_atom_pick_pll(struct drm_crtc *crtc)
1875 {
1876 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1877 struct drm_device *dev = crtc->dev;
1878 struct radeon_device *rdev = dev->dev_private;
1879 struct radeon_encoder *radeon_encoder =
1880 to_radeon_encoder(radeon_crtc->encoder);
1881 u32 pll_in_use;
1882 int pll;
1883
1884 if (ASIC_IS_DCE8(rdev)) {
1885 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1886 if (rdev->clock.dp_extclk)
1887 /* skip PPLL programming if using ext clock */
1888 return ATOM_PPLL_INVALID;
1889 else {
1890 /* use the same PPLL for all DP monitors */
1891 pll = radeon_get_shared_dp_ppll(crtc);
1892 if (pll != ATOM_PPLL_INVALID)
1893 return pll;
1894 }
1895 } else {
1896 /* use the same PPLL for all monitors with the same clock */
1897 pll = radeon_get_shared_nondp_ppll(crtc);
1898 if (pll != ATOM_PPLL_INVALID)
1899 return pll;
1900 }
1901 /* otherwise, pick one of the plls */
1902 if ((rdev->family == CHIP_KABINI) ||
1903 (rdev->family == CHIP_MULLINS)) {
1904 /* KB/ML has PPLL1 and PPLL2 */
1905 pll_in_use = radeon_get_pll_use_mask(crtc);
1906 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1907 return ATOM_PPLL2;
1908 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1909 return ATOM_PPLL1;
1910 DRM_ERROR("unable to allocate a PPLL\n");
1911 return ATOM_PPLL_INVALID;
1912 } else {
1913 /* CI/KV has PPLL0, PPLL1, and PPLL2 */
1914 pll_in_use = radeon_get_pll_use_mask(crtc);
1915 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1916 return ATOM_PPLL2;
1917 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1918 return ATOM_PPLL1;
1919 if (!(pll_in_use & (1 << ATOM_PPLL0)))
1920 return ATOM_PPLL0;
1921 DRM_ERROR("unable to allocate a PPLL\n");
1922 return ATOM_PPLL_INVALID;
1923 }
1924 } else if (ASIC_IS_DCE61(rdev)) {
1925 struct radeon_encoder_atom_dig *dig =
1926 radeon_encoder->enc_priv;
1927
1928 if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) &&
1929 (dig->linkb == false))
1930 /* UNIPHY A uses PPLL2 */
1931 return ATOM_PPLL2;
1932 else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1933 /* UNIPHY B/C/D/E/F */
1934 if (rdev->clock.dp_extclk)
1935 /* skip PPLL programming if using ext clock */
1936 return ATOM_PPLL_INVALID;
1937 else {
1938 /* use the same PPLL for all DP monitors */
1939 pll = radeon_get_shared_dp_ppll(crtc);
1940 if (pll != ATOM_PPLL_INVALID)
1941 return pll;
1942 }
1943 } else {
1944 /* use the same PPLL for all monitors with the same clock */
1945 pll = radeon_get_shared_nondp_ppll(crtc);
1946 if (pll != ATOM_PPLL_INVALID)
1947 return pll;
1948 }
1949 /* UNIPHY B/C/D/E/F */
1950 pll_in_use = radeon_get_pll_use_mask(crtc);
1951 if (!(pll_in_use & (1 << ATOM_PPLL0)))
1952 return ATOM_PPLL0;
1953 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1954 return ATOM_PPLL1;
1955 DRM_ERROR("unable to allocate a PPLL\n");
1956 return ATOM_PPLL_INVALID;
1957 } else if (ASIC_IS_DCE41(rdev)) {
1958 /* Don't share PLLs on DCE4.1 chips */
1959 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1960 if (rdev->clock.dp_extclk)
1961 /* skip PPLL programming if using ext clock */
1962 return ATOM_PPLL_INVALID;
1963 }
1964 pll_in_use = radeon_get_pll_use_mask(crtc);
1965 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1966 return ATOM_PPLL1;
1967 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1968 return ATOM_PPLL2;
1969 DRM_ERROR("unable to allocate a PPLL\n");
1970 return ATOM_PPLL_INVALID;
1971 } else if (ASIC_IS_DCE4(rdev)) {
1972 /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock,
1973 * depending on the asic:
1974 * DCE4: PPLL or ext clock
1975 * DCE5: PPLL, DCPLL, or ext clock
1976 * DCE6: PPLL, PPLL0, or ext clock
1977 *
1978 * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip
1979 * PPLL/DCPLL programming and only program the DP DTO for the
1980 * crtc virtual pixel clock.
1981 */
1982 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1983 if (rdev->clock.dp_extclk)
1984 /* skip PPLL programming if using ext clock */
1985 return ATOM_PPLL_INVALID;
1986 else if (ASIC_IS_DCE6(rdev))
1987 /* use PPLL0 for all DP */
1988 return ATOM_PPLL0;
1989 else if (ASIC_IS_DCE5(rdev))
1990 /* use DCPLL for all DP */
1991 return ATOM_DCPLL;
1992 else {
1993 /* use the same PPLL for all DP monitors */
1994 pll = radeon_get_shared_dp_ppll(crtc);
1995 if (pll != ATOM_PPLL_INVALID)
1996 return pll;
1997 }
1998 } else {
1999 /* use the same PPLL for all monitors with the same clock */
2000 pll = radeon_get_shared_nondp_ppll(crtc);
2001 if (pll != ATOM_PPLL_INVALID)
2002 return pll;
2003 }
2004 /* all other cases */
2005 pll_in_use = radeon_get_pll_use_mask(crtc);
2006 if (!(pll_in_use & (1 << ATOM_PPLL1)))
2007 return ATOM_PPLL1;
2008 if (!(pll_in_use & (1 << ATOM_PPLL2)))
2009 return ATOM_PPLL2;
2010 DRM_ERROR("unable to allocate a PPLL\n");
2011 return ATOM_PPLL_INVALID;
2012 } else {
2013 /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
2014 /* some atombios (observed in some DCE2/DCE3) code have a bug,
2015 * the matching btw pll and crtc is done through
2016 * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the
2017 * pll (1 or 2) to select which register to write. ie if using
2018 * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2
2019 * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to
2020 * choose which value to write. Which is reverse order from
2021 * register logic. So only case that works is when pllid is
2022 * same as crtcid or when both pll and crtc are enabled and
2023 * both use same clock.
2024 *
2025 * So just return crtc id as if crtc and pll were hard linked
2026 * together even if they aren't
2027 */
2028 return radeon_crtc->crtc_id;
2029 }
2030 }
2031
radeon_atom_disp_eng_pll_init(struct radeon_device * rdev)2032 void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
2033 {
2034 /* always set DCPLL */
2035 if (ASIC_IS_DCE6(rdev))
2036 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2037 else if (ASIC_IS_DCE4(rdev)) {
2038 struct radeon_atom_ss ss;
2039 bool ss_enabled = radeon_atombios_get_asic_ss_info(rdev, &ss,
2040 ASIC_INTERNAL_SS_ON_DCPLL,
2041 rdev->clock.default_dispclk);
2042 if (ss_enabled)
2043 atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
2044 /* XXX: DCE5, make sure voltage, dispclk is high enough */
2045 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2046 if (ss_enabled)
2047 atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
2048 }
2049
2050 }
2051
atombios_crtc_mode_set(struct drm_crtc * crtc,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode,int x,int y,struct drm_framebuffer * old_fb)2052 int atombios_crtc_mode_set(struct drm_crtc *crtc,
2053 struct drm_display_mode *mode,
2054 struct drm_display_mode *adjusted_mode,
2055 int x, int y, struct drm_framebuffer *old_fb)
2056 {
2057 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2058 struct drm_device *dev = crtc->dev;
2059 struct radeon_device *rdev = dev->dev_private;
2060 struct radeon_encoder *radeon_encoder =
2061 to_radeon_encoder(radeon_crtc->encoder);
2062 bool is_tvcv = false;
2063
2064 if (radeon_encoder->active_device &
2065 (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
2066 is_tvcv = true;
2067
2068 if (!radeon_crtc->adjusted_clock)
2069 return -EINVAL;
2070
2071 atombios_crtc_set_pll(crtc, adjusted_mode);
2072
2073 if (ASIC_IS_DCE4(rdev))
2074 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2075 else if (ASIC_IS_AVIVO(rdev)) {
2076 if (is_tvcv)
2077 atombios_crtc_set_timing(crtc, adjusted_mode);
2078 else
2079 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2080 } else {
2081 atombios_crtc_set_timing(crtc, adjusted_mode);
2082 if (radeon_crtc->crtc_id == 0)
2083 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2084 radeon_legacy_atom_fixup(crtc);
2085 }
2086 atombios_crtc_set_base(crtc, x, y, old_fb);
2087 atombios_overscan_setup(crtc, mode, adjusted_mode);
2088 atombios_scaler_setup(crtc);
2089 radeon_cursor_reset(crtc);
2090 /* update the hw version fpr dpm */
2091 radeon_crtc->hw_mode = *adjusted_mode;
2092
2093 return 0;
2094 }
2095
atombios_crtc_mode_fixup(struct drm_crtc * crtc,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)2096 static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
2097 const struct drm_display_mode *mode,
2098 struct drm_display_mode *adjusted_mode)
2099 {
2100 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2101 struct drm_device *dev = crtc->dev;
2102 struct drm_encoder *encoder;
2103
2104 /* assign the encoder to the radeon crtc to avoid repeated lookups later */
2105 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2106 if (encoder->crtc == crtc) {
2107 radeon_crtc->encoder = encoder;
2108 radeon_crtc->connector = radeon_get_connector_for_encoder(encoder);
2109 break;
2110 }
2111 }
2112 if ((radeon_crtc->encoder == NULL) || (radeon_crtc->connector == NULL)) {
2113 radeon_crtc->encoder = NULL;
2114 radeon_crtc->connector = NULL;
2115 return false;
2116 }
2117 if (radeon_crtc->encoder) {
2118 struct radeon_encoder *radeon_encoder =
2119 to_radeon_encoder(radeon_crtc->encoder);
2120
2121 radeon_crtc->output_csc = radeon_encoder->output_csc;
2122 }
2123 if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
2124 return false;
2125 if (!atombios_crtc_prepare_pll(crtc, adjusted_mode))
2126 return false;
2127 /* pick pll */
2128 radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
2129 /* if we can't get a PPLL for a non-DP encoder, fail */
2130 if ((radeon_crtc->pll_id == ATOM_PPLL_INVALID) &&
2131 !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder)))
2132 return false;
2133
2134 return true;
2135 }
2136
atombios_crtc_prepare(struct drm_crtc * crtc)2137 static void atombios_crtc_prepare(struct drm_crtc *crtc)
2138 {
2139 struct drm_device *dev = crtc->dev;
2140 struct radeon_device *rdev = dev->dev_private;
2141
2142 /* disable crtc pair power gating before programming */
2143 if (ASIC_IS_DCE6(rdev))
2144 atombios_powergate_crtc(crtc, ATOM_DISABLE);
2145
2146 atombios_lock_crtc(crtc, ATOM_ENABLE);
2147 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2148 }
2149
atombios_crtc_commit(struct drm_crtc * crtc)2150 static void atombios_crtc_commit(struct drm_crtc *crtc)
2151 {
2152 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
2153 atombios_lock_crtc(crtc, ATOM_DISABLE);
2154 }
2155
atombios_crtc_disable(struct drm_crtc * crtc)2156 static void atombios_crtc_disable(struct drm_crtc *crtc)
2157 {
2158 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2159 struct drm_device *dev = crtc->dev;
2160 struct radeon_device *rdev = dev->dev_private;
2161 struct radeon_atom_ss ss;
2162 int i;
2163
2164 atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2165 if (crtc->primary->fb) {
2166 int r;
2167 struct radeon_bo *rbo;
2168
2169 rbo = gem_to_radeon_bo(crtc->primary->fb->obj[0]);
2170 r = radeon_bo_reserve(rbo, false);
2171 if (unlikely(r))
2172 DRM_ERROR("failed to reserve rbo before unpin\n");
2173 else {
2174 radeon_bo_unpin(rbo);
2175 radeon_bo_unreserve(rbo);
2176 }
2177 }
2178 /* disable the GRPH */
2179 if (ASIC_IS_DCE4(rdev))
2180 WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2181 else if (ASIC_IS_AVIVO(rdev))
2182 WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2183
2184 if (ASIC_IS_DCE6(rdev))
2185 atombios_powergate_crtc(crtc, ATOM_ENABLE);
2186
2187 for (i = 0; i < rdev->num_crtc; i++) {
2188 if (rdev->mode_info.crtcs[i] &&
2189 rdev->mode_info.crtcs[i]->enabled &&
2190 i != radeon_crtc->crtc_id &&
2191 radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
2192 /* one other crtc is using this pll don't turn
2193 * off the pll
2194 */
2195 goto done;
2196 }
2197 }
2198
2199 switch (radeon_crtc->pll_id) {
2200 case ATOM_PPLL1:
2201 case ATOM_PPLL2:
2202 /* disable the ppll */
2203 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2204 0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2205 break;
2206 case ATOM_PPLL0:
2207 /* disable the ppll */
2208 if ((rdev->family == CHIP_ARUBA) ||
2209 (rdev->family == CHIP_KAVERI) ||
2210 (rdev->family == CHIP_BONAIRE) ||
2211 (rdev->family == CHIP_HAWAII))
2212 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2213 0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2214 break;
2215 default:
2216 break;
2217 }
2218 done:
2219 radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2220 radeon_crtc->adjusted_clock = 0;
2221 radeon_crtc->encoder = NULL;
2222 radeon_crtc->connector = NULL;
2223 }
2224
2225 static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
2226 .dpms = atombios_crtc_dpms,
2227 .mode_fixup = atombios_crtc_mode_fixup,
2228 .mode_set = atombios_crtc_mode_set,
2229 .mode_set_base = atombios_crtc_set_base,
2230 .mode_set_base_atomic = atombios_crtc_set_base_atomic,
2231 .prepare = atombios_crtc_prepare,
2232 .commit = atombios_crtc_commit,
2233 .disable = atombios_crtc_disable,
2234 .get_scanout_position = radeon_get_crtc_scanout_position,
2235 };
2236
radeon_atombios_init_crtc(struct drm_device * dev,struct radeon_crtc * radeon_crtc)2237 void radeon_atombios_init_crtc(struct drm_device *dev,
2238 struct radeon_crtc *radeon_crtc)
2239 {
2240 struct radeon_device *rdev = dev->dev_private;
2241
2242 if (ASIC_IS_DCE4(rdev)) {
2243 switch (radeon_crtc->crtc_id) {
2244 case 0:
2245 default:
2246 radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
2247 break;
2248 case 1:
2249 radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
2250 break;
2251 case 2:
2252 radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
2253 break;
2254 case 3:
2255 radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
2256 break;
2257 case 4:
2258 radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
2259 break;
2260 case 5:
2261 radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
2262 break;
2263 }
2264 } else {
2265 if (radeon_crtc->crtc_id == 1)
2266 radeon_crtc->crtc_offset =
2267 AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2268 else
2269 radeon_crtc->crtc_offset = 0;
2270 }
2271 radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2272 radeon_crtc->adjusted_clock = 0;
2273 radeon_crtc->encoder = NULL;
2274 radeon_crtc->connector = NULL;
2275 drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2276 }
2277