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/radeon_drm.h>
29 #include <drm/drm_fixed.h>
30 #include "radeon.h"
31 #include "atom.h"
32 #include "atom-bits.h"
33 
34 static void atombios_overscan_setup(struct drm_crtc *crtc,
35 				    struct drm_display_mode *mode,
36 				    struct drm_display_mode *adjusted_mode)
37 {
38 	struct drm_device *dev = crtc->dev;
39 	struct radeon_device *rdev = dev->dev_private;
40 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
41 	SET_CRTC_OVERSCAN_PS_ALLOCATION args;
42 	int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
43 	int a1, a2;
44 
45 	memset(&args, 0, sizeof(args));
46 
47 	args.ucCRTC = radeon_crtc->crtc_id;
48 
49 	switch (radeon_crtc->rmx_type) {
50 	case RMX_CENTER:
51 		args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
52 		args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
53 		args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
54 		args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
55 		break;
56 	case RMX_ASPECT:
57 		a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
58 		a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
59 
60 		if (a1 > a2) {
61 			args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
62 			args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
63 		} else if (a2 > a1) {
64 			args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
65 			args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
66 		}
67 		break;
68 	case RMX_FULL:
69 	default:
70 		args.usOverscanRight = cpu_to_le16(radeon_crtc->h_border);
71 		args.usOverscanLeft = cpu_to_le16(radeon_crtc->h_border);
72 		args.usOverscanBottom = cpu_to_le16(radeon_crtc->v_border);
73 		args.usOverscanTop = cpu_to_le16(radeon_crtc->v_border);
74 		break;
75 	}
76 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
77 }
78 
79 static void atombios_scaler_setup(struct drm_crtc *crtc)
80 {
81 	struct drm_device *dev = crtc->dev;
82 	struct radeon_device *rdev = dev->dev_private;
83 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
84 	ENABLE_SCALER_PS_ALLOCATION args;
85 	int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
86 	struct radeon_encoder *radeon_encoder =
87 		to_radeon_encoder(radeon_crtc->encoder);
88 	/* fixme - fill in enc_priv for atom dac */
89 	enum radeon_tv_std tv_std = TV_STD_NTSC;
90 	bool is_tv = false, is_cv = false;
91 
92 	if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
93 		return;
94 
95 	if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
96 		struct radeon_encoder_atom_dac *tv_dac = radeon_encoder->enc_priv;
97 		tv_std = tv_dac->tv_std;
98 		is_tv = true;
99 	}
100 
101 	memset(&args, 0, sizeof(args));
102 
103 	args.ucScaler = radeon_crtc->crtc_id;
104 
105 	if (is_tv) {
106 		switch (tv_std) {
107 		case TV_STD_NTSC:
108 		default:
109 			args.ucTVStandard = ATOM_TV_NTSC;
110 			break;
111 		case TV_STD_PAL:
112 			args.ucTVStandard = ATOM_TV_PAL;
113 			break;
114 		case TV_STD_PAL_M:
115 			args.ucTVStandard = ATOM_TV_PALM;
116 			break;
117 		case TV_STD_PAL_60:
118 			args.ucTVStandard = ATOM_TV_PAL60;
119 			break;
120 		case TV_STD_NTSC_J:
121 			args.ucTVStandard = ATOM_TV_NTSCJ;
122 			break;
123 		case TV_STD_SCART_PAL:
124 			args.ucTVStandard = ATOM_TV_PAL; /* ??? */
125 			break;
126 		case TV_STD_SECAM:
127 			args.ucTVStandard = ATOM_TV_SECAM;
128 			break;
129 		case TV_STD_PAL_CN:
130 			args.ucTVStandard = ATOM_TV_PALCN;
131 			break;
132 		}
133 		args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
134 	} else if (is_cv) {
135 		args.ucTVStandard = ATOM_TV_CV;
136 		args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
137 	} else {
138 		switch (radeon_crtc->rmx_type) {
139 		case RMX_FULL:
140 			args.ucEnable = ATOM_SCALER_EXPANSION;
141 			break;
142 		case RMX_CENTER:
143 			args.ucEnable = ATOM_SCALER_CENTER;
144 			break;
145 		case RMX_ASPECT:
146 			args.ucEnable = ATOM_SCALER_EXPANSION;
147 			break;
148 		default:
149 			if (ASIC_IS_AVIVO(rdev))
150 				args.ucEnable = ATOM_SCALER_DISABLE;
151 			else
152 				args.ucEnable = ATOM_SCALER_CENTER;
153 			break;
154 		}
155 	}
156 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
157 	if ((is_tv || is_cv)
158 	    && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_R580) {
159 		atom_rv515_force_tv_scaler(rdev, radeon_crtc);
160 	}
161 }
162 
163 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
164 {
165 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
166 	struct drm_device *dev = crtc->dev;
167 	struct radeon_device *rdev = dev->dev_private;
168 	int index =
169 	    GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters);
170 	ENABLE_CRTC_PS_ALLOCATION args;
171 
172 	memset(&args, 0, sizeof(args));
173 
174 	args.ucCRTC = radeon_crtc->crtc_id;
175 	args.ucEnable = lock;
176 
177 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
178 }
179 
180 static void atombios_enable_crtc(struct drm_crtc *crtc, int state)
181 {
182 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
183 	struct drm_device *dev = crtc->dev;
184 	struct radeon_device *rdev = dev->dev_private;
185 	int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC);
186 	ENABLE_CRTC_PS_ALLOCATION args;
187 
188 	memset(&args, 0, sizeof(args));
189 
190 	args.ucCRTC = radeon_crtc->crtc_id;
191 	args.ucEnable = state;
192 
193 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
194 }
195 
196 static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
197 {
198 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
199 	struct drm_device *dev = crtc->dev;
200 	struct radeon_device *rdev = dev->dev_private;
201 	int index = GetIndexIntoMasterTable(COMMAND, EnableCRTCMemReq);
202 	ENABLE_CRTC_PS_ALLOCATION args;
203 
204 	memset(&args, 0, sizeof(args));
205 
206 	args.ucCRTC = radeon_crtc->crtc_id;
207 	args.ucEnable = state;
208 
209 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
210 }
211 
212 static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
213 {
214 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
215 	struct drm_device *dev = crtc->dev;
216 	struct radeon_device *rdev = dev->dev_private;
217 	int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
218 	BLANK_CRTC_PS_ALLOCATION args;
219 
220 	memset(&args, 0, sizeof(args));
221 
222 	args.ucCRTC = radeon_crtc->crtc_id;
223 	args.ucBlanking = state;
224 
225 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
226 }
227 
228 static void atombios_powergate_crtc(struct drm_crtc *crtc, int state)
229 {
230 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
231 	struct drm_device *dev = crtc->dev;
232 	struct radeon_device *rdev = dev->dev_private;
233 	int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
234 	ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
235 
236 	memset(&args, 0, sizeof(args));
237 
238 	args.ucDispPipeId = radeon_crtc->crtc_id;
239 	args.ucEnable = state;
240 
241 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
242 }
243 
244 void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
245 {
246 	struct drm_device *dev = crtc->dev;
247 	struct radeon_device *rdev = dev->dev_private;
248 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
249 
250 	switch (mode) {
251 	case DRM_MODE_DPMS_ON:
252 		radeon_crtc->enabled = true;
253 		/* adjust pm to dpms changes BEFORE enabling crtcs */
254 		radeon_pm_compute_clocks(rdev);
255 		atombios_enable_crtc(crtc, ATOM_ENABLE);
256 		if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
257 			atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
258 		atombios_blank_crtc(crtc, ATOM_DISABLE);
259 		drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
260 		radeon_crtc_load_lut(crtc);
261 		break;
262 	case DRM_MODE_DPMS_STANDBY:
263 	case DRM_MODE_DPMS_SUSPEND:
264 	case DRM_MODE_DPMS_OFF:
265 		drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id);
266 		if (radeon_crtc->enabled)
267 			atombios_blank_crtc(crtc, ATOM_ENABLE);
268 		if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
269 			atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
270 		atombios_enable_crtc(crtc, ATOM_DISABLE);
271 		radeon_crtc->enabled = false;
272 		/* adjust pm to dpms changes AFTER disabling crtcs */
273 		radeon_pm_compute_clocks(rdev);
274 		break;
275 	}
276 }
277 
278 static void
279 atombios_set_crtc_dtd_timing(struct drm_crtc *crtc,
280 			     struct drm_display_mode *mode)
281 {
282 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
283 	struct drm_device *dev = crtc->dev;
284 	struct radeon_device *rdev = dev->dev_private;
285 	SET_CRTC_USING_DTD_TIMING_PARAMETERS args;
286 	int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming);
287 	u16 misc = 0;
288 
289 	memset(&args, 0, sizeof(args));
290 	args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (radeon_crtc->h_border * 2));
291 	args.usH_Blanking_Time =
292 		cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (radeon_crtc->h_border * 2));
293 	args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (radeon_crtc->v_border * 2));
294 	args.usV_Blanking_Time =
295 		cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (radeon_crtc->v_border * 2));
296 	args.usH_SyncOffset =
297 		cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + radeon_crtc->h_border);
298 	args.usH_SyncWidth =
299 		cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
300 	args.usV_SyncOffset =
301 		cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + radeon_crtc->v_border);
302 	args.usV_SyncWidth =
303 		cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
304 	args.ucH_Border = radeon_crtc->h_border;
305 	args.ucV_Border = radeon_crtc->v_border;
306 
307 	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
308 		misc |= ATOM_VSYNC_POLARITY;
309 	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
310 		misc |= ATOM_HSYNC_POLARITY;
311 	if (mode->flags & DRM_MODE_FLAG_CSYNC)
312 		misc |= ATOM_COMPOSITESYNC;
313 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
314 		misc |= ATOM_INTERLACE;
315 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
316 		misc |= ATOM_DOUBLE_CLOCK_MODE;
317 
318 	args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
319 	args.ucCRTC = radeon_crtc->crtc_id;
320 
321 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
322 }
323 
324 static void atombios_crtc_set_timing(struct drm_crtc *crtc,
325 				     struct drm_display_mode *mode)
326 {
327 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
328 	struct drm_device *dev = crtc->dev;
329 	struct radeon_device *rdev = dev->dev_private;
330 	SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION args;
331 	int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_Timing);
332 	u16 misc = 0;
333 
334 	memset(&args, 0, sizeof(args));
335 	args.usH_Total = cpu_to_le16(mode->crtc_htotal);
336 	args.usH_Disp = cpu_to_le16(mode->crtc_hdisplay);
337 	args.usH_SyncStart = cpu_to_le16(mode->crtc_hsync_start);
338 	args.usH_SyncWidth =
339 		cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
340 	args.usV_Total = cpu_to_le16(mode->crtc_vtotal);
341 	args.usV_Disp = cpu_to_le16(mode->crtc_vdisplay);
342 	args.usV_SyncStart = cpu_to_le16(mode->crtc_vsync_start);
343 	args.usV_SyncWidth =
344 		cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
345 
346 	args.ucOverscanRight = radeon_crtc->h_border;
347 	args.ucOverscanLeft = radeon_crtc->h_border;
348 	args.ucOverscanBottom = radeon_crtc->v_border;
349 	args.ucOverscanTop = radeon_crtc->v_border;
350 
351 	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
352 		misc |= ATOM_VSYNC_POLARITY;
353 	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
354 		misc |= ATOM_HSYNC_POLARITY;
355 	if (mode->flags & DRM_MODE_FLAG_CSYNC)
356 		misc |= ATOM_COMPOSITESYNC;
357 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
358 		misc |= ATOM_INTERLACE;
359 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
360 		misc |= ATOM_DOUBLE_CLOCK_MODE;
361 
362 	args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
363 	args.ucCRTC = radeon_crtc->crtc_id;
364 
365 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
366 }
367 
368 static void atombios_disable_ss(struct radeon_device *rdev, int pll_id)
369 {
370 	u32 ss_cntl;
371 
372 	if (ASIC_IS_DCE4(rdev)) {
373 		switch (pll_id) {
374 		case ATOM_PPLL1:
375 			ss_cntl = RREG32(EVERGREEN_P1PLL_SS_CNTL);
376 			ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
377 			WREG32(EVERGREEN_P1PLL_SS_CNTL, ss_cntl);
378 			break;
379 		case ATOM_PPLL2:
380 			ss_cntl = RREG32(EVERGREEN_P2PLL_SS_CNTL);
381 			ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
382 			WREG32(EVERGREEN_P2PLL_SS_CNTL, ss_cntl);
383 			break;
384 		case ATOM_DCPLL:
385 		case ATOM_PPLL_INVALID:
386 			return;
387 		}
388 	} else if (ASIC_IS_AVIVO(rdev)) {
389 		switch (pll_id) {
390 		case ATOM_PPLL1:
391 			ss_cntl = RREG32(AVIVO_P1PLL_INT_SS_CNTL);
392 			ss_cntl &= ~1;
393 			WREG32(AVIVO_P1PLL_INT_SS_CNTL, ss_cntl);
394 			break;
395 		case ATOM_PPLL2:
396 			ss_cntl = RREG32(AVIVO_P2PLL_INT_SS_CNTL);
397 			ss_cntl &= ~1;
398 			WREG32(AVIVO_P2PLL_INT_SS_CNTL, ss_cntl);
399 			break;
400 		case ATOM_DCPLL:
401 		case ATOM_PPLL_INVALID:
402 			return;
403 		}
404 	}
405 }
406 
407 
408 union atom_enable_ss {
409 	ENABLE_LVDS_SS_PARAMETERS lvds_ss;
410 	ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
411 	ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
412 	ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
413 	ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
414 };
415 
416 static void atombios_crtc_program_ss(struct radeon_device *rdev,
417 				     int enable,
418 				     int pll_id,
419 				     int crtc_id,
420 				     struct radeon_atom_ss *ss)
421 {
422 	unsigned i;
423 	int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
424 	union atom_enable_ss args;
425 
426 	if (!enable) {
427 		for (i = 0; i < rdev->num_crtc; i++) {
428 			if (rdev->mode_info.crtcs[i] &&
429 			    rdev->mode_info.crtcs[i]->enabled &&
430 			    i != crtc_id &&
431 			    pll_id == rdev->mode_info.crtcs[i]->pll_id) {
432 				/* one other crtc is using this pll don't turn
433 				 * off spread spectrum as it might turn off
434 				 * display on active crtc
435 				 */
436 				return;
437 			}
438 		}
439 	}
440 
441 	memset(&args, 0, sizeof(args));
442 
443 	if (ASIC_IS_DCE5(rdev)) {
444 		args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0);
445 		args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
446 		switch (pll_id) {
447 		case ATOM_PPLL1:
448 			args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
449 			break;
450 		case ATOM_PPLL2:
451 			args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
452 			break;
453 		case ATOM_DCPLL:
454 			args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
455 			break;
456 		case ATOM_PPLL_INVALID:
457 			return;
458 		}
459 		args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
460 		args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step);
461 		args.v3.ucEnable = enable;
462 		if ((ss->percentage == 0) || (ss->type & ATOM_EXTERNAL_SS_MASK) || ASIC_IS_DCE61(rdev))
463 			args.v3.ucEnable = ATOM_DISABLE;
464 	} else if (ASIC_IS_DCE4(rdev)) {
465 		args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
466 		args.v2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
467 		switch (pll_id) {
468 		case ATOM_PPLL1:
469 			args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P1PLL;
470 			break;
471 		case ATOM_PPLL2:
472 			args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P2PLL;
473 			break;
474 		case ATOM_DCPLL:
475 			args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_DCPLL;
476 			break;
477 		case ATOM_PPLL_INVALID:
478 			return;
479 		}
480 		args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
481 		args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step);
482 		args.v2.ucEnable = enable;
483 		if ((ss->percentage == 0) || (ss->type & ATOM_EXTERNAL_SS_MASK) || ASIC_IS_DCE41(rdev))
484 			args.v2.ucEnable = ATOM_DISABLE;
485 	} else if (ASIC_IS_DCE3(rdev)) {
486 		args.v1.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
487 		args.v1.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
488 		args.v1.ucSpreadSpectrumStep = ss->step;
489 		args.v1.ucSpreadSpectrumDelay = ss->delay;
490 		args.v1.ucSpreadSpectrumRange = ss->range;
491 		args.v1.ucPpll = pll_id;
492 		args.v1.ucEnable = enable;
493 	} else if (ASIC_IS_AVIVO(rdev)) {
494 		if ((enable == ATOM_DISABLE) || (ss->percentage == 0) ||
495 		    (ss->type & ATOM_EXTERNAL_SS_MASK)) {
496 			atombios_disable_ss(rdev, pll_id);
497 			return;
498 		}
499 		args.lvds_ss_2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
500 		args.lvds_ss_2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
501 		args.lvds_ss_2.ucSpreadSpectrumStep = ss->step;
502 		args.lvds_ss_2.ucSpreadSpectrumDelay = ss->delay;
503 		args.lvds_ss_2.ucSpreadSpectrumRange = ss->range;
504 		args.lvds_ss_2.ucEnable = enable;
505 	} else {
506 		if ((enable == ATOM_DISABLE) || (ss->percentage == 0) ||
507 		    (ss->type & ATOM_EXTERNAL_SS_MASK)) {
508 			atombios_disable_ss(rdev, pll_id);
509 			return;
510 		}
511 		args.lvds_ss.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
512 		args.lvds_ss.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
513 		args.lvds_ss.ucSpreadSpectrumStepSize_Delay = (ss->step & 3) << 2;
514 		args.lvds_ss.ucSpreadSpectrumStepSize_Delay |= (ss->delay & 7) << 4;
515 		args.lvds_ss.ucEnable = enable;
516 	}
517 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
518 }
519 
520 union adjust_pixel_clock {
521 	ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
522 	ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
523 };
524 
525 static u32 atombios_adjust_pll(struct drm_crtc *crtc,
526 			       struct drm_display_mode *mode)
527 {
528 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
529 	struct drm_device *dev = crtc->dev;
530 	struct radeon_device *rdev = dev->dev_private;
531 	struct drm_encoder *encoder = radeon_crtc->encoder;
532 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
533 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
534 	u32 adjusted_clock = mode->clock;
535 	int encoder_mode = atombios_get_encoder_mode(encoder);
536 	u32 dp_clock = mode->clock;
537 	int bpc = radeon_get_monitor_bpc(connector);
538 	bool is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
539 
540 	/* reset the pll flags */
541 	radeon_crtc->pll_flags = 0;
542 
543 	if (ASIC_IS_AVIVO(rdev)) {
544 		if ((rdev->family == CHIP_RS600) ||
545 		    (rdev->family == CHIP_RS690) ||
546 		    (rdev->family == CHIP_RS740))
547 			radeon_crtc->pll_flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
548 				RADEON_PLL_PREFER_CLOSEST_LOWER);
549 
550 		if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)	/* range limits??? */
551 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
552 		else
553 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
554 
555 		if (rdev->family < CHIP_RV770)
556 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
557 		/* use frac fb div on APUs */
558 		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
559 			radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
560 		/* use frac fb div on RS780/RS880 */
561 		if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
562 			radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
563 		if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
564 			radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
565 	} else {
566 		radeon_crtc->pll_flags |= RADEON_PLL_LEGACY;
567 
568 		if (mode->clock > 200000)	/* range limits??? */
569 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
570 		else
571 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
572 	}
573 
574 	if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
575 	    (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
576 		if (connector) {
577 			struct radeon_connector *radeon_connector = to_radeon_connector(connector);
578 			struct radeon_connector_atom_dig *dig_connector =
579 				radeon_connector->con_priv;
580 
581 			dp_clock = dig_connector->dp_clock;
582 		}
583 	}
584 
585 	/* use recommended ref_div for ss */
586 	if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
587 		if (radeon_crtc->ss_enabled) {
588 			if (radeon_crtc->ss.refdiv) {
589 				radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
590 				radeon_crtc->pll_reference_div = radeon_crtc->ss.refdiv;
591 				if (ASIC_IS_AVIVO(rdev))
592 					radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
593 			}
594 		}
595 	}
596 
597 	if (ASIC_IS_AVIVO(rdev)) {
598 		/* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
599 		if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
600 			adjusted_clock = mode->clock * 2;
601 		if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
602 			radeon_crtc->pll_flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
603 		if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
604 			radeon_crtc->pll_flags |= RADEON_PLL_IS_LCD;
605 	} else {
606 		if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
607 			radeon_crtc->pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
608 		if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS)
609 			radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
610 	}
611 
612 	/* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock
613 	 * accordingly based on the encoder/transmitter to work around
614 	 * special hw requirements.
615 	 */
616 	if (ASIC_IS_DCE3(rdev)) {
617 		union adjust_pixel_clock args;
618 		u8 frev, crev;
619 		int index;
620 
621 		index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
622 		if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
623 					   &crev))
624 			return adjusted_clock;
625 
626 		memset(&args, 0, sizeof(args));
627 
628 		switch (frev) {
629 		case 1:
630 			switch (crev) {
631 			case 1:
632 			case 2:
633 				args.v1.usPixelClock = cpu_to_le16(mode->clock / 10);
634 				args.v1.ucTransmitterID = radeon_encoder->encoder_id;
635 				args.v1.ucEncodeMode = encoder_mode;
636 				if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
637 					args.v1.ucConfig |=
638 						ADJUST_DISPLAY_CONFIG_SS_ENABLE;
639 
640 				atom_execute_table(rdev->mode_info.atom_context,
641 						   index, (uint32_t *)&args);
642 				adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10;
643 				break;
644 			case 3:
645 				args.v3.sInput.usPixelClock = cpu_to_le16(mode->clock / 10);
646 				args.v3.sInput.ucTransmitterID = radeon_encoder->encoder_id;
647 				args.v3.sInput.ucEncodeMode = encoder_mode;
648 				args.v3.sInput.ucDispPllConfig = 0;
649 				if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
650 					args.v3.sInput.ucDispPllConfig |=
651 						DISPPLL_CONFIG_SS_ENABLE;
652 				if (ENCODER_MODE_IS_DP(encoder_mode)) {
653 					args.v3.sInput.ucDispPllConfig |=
654 						DISPPLL_CONFIG_COHERENT_MODE;
655 					/* 16200 or 27000 */
656 					args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10);
657 				} else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
658 					struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
659 					if (encoder_mode == ATOM_ENCODER_MODE_HDMI)
660 						/* deep color support */
661 						args.v3.sInput.usPixelClock =
662 							cpu_to_le16((mode->clock * bpc / 8) / 10);
663 					if (dig->coherent_mode)
664 						args.v3.sInput.ucDispPllConfig |=
665 							DISPPLL_CONFIG_COHERENT_MODE;
666 					if (is_duallink)
667 						args.v3.sInput.ucDispPllConfig |=
668 							DISPPLL_CONFIG_DUAL_LINK;
669 				}
670 				if (radeon_encoder_get_dp_bridge_encoder_id(encoder) !=
671 				    ENCODER_OBJECT_ID_NONE)
672 					args.v3.sInput.ucExtTransmitterID =
673 						radeon_encoder_get_dp_bridge_encoder_id(encoder);
674 				else
675 					args.v3.sInput.ucExtTransmitterID = 0;
676 
677 				atom_execute_table(rdev->mode_info.atom_context,
678 						   index, (uint32_t *)&args);
679 				adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10;
680 				if (args.v3.sOutput.ucRefDiv) {
681 					radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
682 					radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
683 					radeon_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv;
684 				}
685 				if (args.v3.sOutput.ucPostDiv) {
686 					radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
687 					radeon_crtc->pll_flags |= RADEON_PLL_USE_POST_DIV;
688 					radeon_crtc->pll_post_div = args.v3.sOutput.ucPostDiv;
689 				}
690 				break;
691 			default:
692 				DRM_ERROR("Unknown table version %d %d\n", frev, crev);
693 				return adjusted_clock;
694 			}
695 			break;
696 		default:
697 			DRM_ERROR("Unknown table version %d %d\n", frev, crev);
698 			return adjusted_clock;
699 		}
700 	}
701 	return adjusted_clock;
702 }
703 
704 union set_pixel_clock {
705 	SET_PIXEL_CLOCK_PS_ALLOCATION base;
706 	PIXEL_CLOCK_PARAMETERS v1;
707 	PIXEL_CLOCK_PARAMETERS_V2 v2;
708 	PIXEL_CLOCK_PARAMETERS_V3 v3;
709 	PIXEL_CLOCK_PARAMETERS_V5 v5;
710 	PIXEL_CLOCK_PARAMETERS_V6 v6;
711 };
712 
713 /* on DCE5, make sure the voltage is high enough to support the
714  * required disp clk.
715  */
716 static void atombios_crtc_set_disp_eng_pll(struct radeon_device *rdev,
717 				    u32 dispclk)
718 {
719 	u8 frev, crev;
720 	int index;
721 	union set_pixel_clock args;
722 
723 	memset(&args, 0, sizeof(args));
724 
725 	index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
726 	if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
727 				   &crev))
728 		return;
729 
730 	switch (frev) {
731 	case 1:
732 		switch (crev) {
733 		case 5:
734 			/* if the default dcpll clock is specified,
735 			 * SetPixelClock provides the dividers
736 			 */
737 			args.v5.ucCRTC = ATOM_CRTC_INVALID;
738 			args.v5.usPixelClock = cpu_to_le16(dispclk);
739 			args.v5.ucPpll = ATOM_DCPLL;
740 			break;
741 		case 6:
742 			/* if the default dcpll clock is specified,
743 			 * SetPixelClock provides the dividers
744 			 */
745 			args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk);
746 			if (ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
747 				args.v6.ucPpll = ATOM_EXT_PLL1;
748 			else if (ASIC_IS_DCE6(rdev))
749 				args.v6.ucPpll = ATOM_PPLL0;
750 			else
751 				args.v6.ucPpll = ATOM_DCPLL;
752 			break;
753 		default:
754 			DRM_ERROR("Unknown table version %d %d\n", frev, crev);
755 			return;
756 		}
757 		break;
758 	default:
759 		DRM_ERROR("Unknown table version %d %d\n", frev, crev);
760 		return;
761 	}
762 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
763 }
764 
765 static void atombios_crtc_program_pll(struct drm_crtc *crtc,
766 				      u32 crtc_id,
767 				      int pll_id,
768 				      u32 encoder_mode,
769 				      u32 encoder_id,
770 				      u32 clock,
771 				      u32 ref_div,
772 				      u32 fb_div,
773 				      u32 frac_fb_div,
774 				      u32 post_div,
775 				      int bpc,
776 				      bool ss_enabled,
777 				      struct radeon_atom_ss *ss)
778 {
779 	struct drm_device *dev = crtc->dev;
780 	struct radeon_device *rdev = dev->dev_private;
781 	u8 frev, crev;
782 	int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
783 	union set_pixel_clock args;
784 
785 	memset(&args, 0, sizeof(args));
786 
787 	if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
788 				   &crev))
789 		return;
790 
791 	switch (frev) {
792 	case 1:
793 		switch (crev) {
794 		case 1:
795 			if (clock == ATOM_DISABLE)
796 				return;
797 			args.v1.usPixelClock = cpu_to_le16(clock / 10);
798 			args.v1.usRefDiv = cpu_to_le16(ref_div);
799 			args.v1.usFbDiv = cpu_to_le16(fb_div);
800 			args.v1.ucFracFbDiv = frac_fb_div;
801 			args.v1.ucPostDiv = post_div;
802 			args.v1.ucPpll = pll_id;
803 			args.v1.ucCRTC = crtc_id;
804 			args.v1.ucRefDivSrc = 1;
805 			break;
806 		case 2:
807 			args.v2.usPixelClock = cpu_to_le16(clock / 10);
808 			args.v2.usRefDiv = cpu_to_le16(ref_div);
809 			args.v2.usFbDiv = cpu_to_le16(fb_div);
810 			args.v2.ucFracFbDiv = frac_fb_div;
811 			args.v2.ucPostDiv = post_div;
812 			args.v2.ucPpll = pll_id;
813 			args.v2.ucCRTC = crtc_id;
814 			args.v2.ucRefDivSrc = 1;
815 			break;
816 		case 3:
817 			args.v3.usPixelClock = cpu_to_le16(clock / 10);
818 			args.v3.usRefDiv = cpu_to_le16(ref_div);
819 			args.v3.usFbDiv = cpu_to_le16(fb_div);
820 			args.v3.ucFracFbDiv = frac_fb_div;
821 			args.v3.ucPostDiv = post_div;
822 			args.v3.ucPpll = pll_id;
823 			if (crtc_id == ATOM_CRTC2)
824 				args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2;
825 			else
826 				args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1;
827 			if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
828 				args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC;
829 			args.v3.ucTransmitterId = encoder_id;
830 			args.v3.ucEncoderMode = encoder_mode;
831 			break;
832 		case 5:
833 			args.v5.ucCRTC = crtc_id;
834 			args.v5.usPixelClock = cpu_to_le16(clock / 10);
835 			args.v5.ucRefDiv = ref_div;
836 			args.v5.usFbDiv = cpu_to_le16(fb_div);
837 			args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
838 			args.v5.ucPostDiv = post_div;
839 			args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
840 			if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
841 				args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
842 			switch (bpc) {
843 			case 8:
844 			default:
845 				args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
846 				break;
847 			case 10:
848 				args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
849 				break;
850 			}
851 			args.v5.ucTransmitterID = encoder_id;
852 			args.v5.ucEncoderMode = encoder_mode;
853 			args.v5.ucPpll = pll_id;
854 			break;
855 		case 6:
856 			args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10);
857 			args.v6.ucRefDiv = ref_div;
858 			args.v6.usFbDiv = cpu_to_le16(fb_div);
859 			args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
860 			args.v6.ucPostDiv = post_div;
861 			args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
862 			if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
863 				args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
864 			switch (bpc) {
865 			case 8:
866 			default:
867 				args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
868 				break;
869 			case 10:
870 				args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP;
871 				break;
872 			case 12:
873 				args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP;
874 				break;
875 			case 16:
876 				args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
877 				break;
878 			}
879 			args.v6.ucTransmitterID = encoder_id;
880 			args.v6.ucEncoderMode = encoder_mode;
881 			args.v6.ucPpll = pll_id;
882 			break;
883 		default:
884 			DRM_ERROR("Unknown table version %d %d\n", frev, crev);
885 			return;
886 		}
887 		break;
888 	default:
889 		DRM_ERROR("Unknown table version %d %d\n", frev, crev);
890 		return;
891 	}
892 
893 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
894 }
895 
896 static bool atombios_crtc_prepare_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
897 {
898 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
899 	struct drm_device *dev = crtc->dev;
900 	struct radeon_device *rdev = dev->dev_private;
901 	struct radeon_encoder *radeon_encoder =
902 		to_radeon_encoder(radeon_crtc->encoder);
903 	int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
904 
905 	radeon_crtc->bpc = 8;
906 	radeon_crtc->ss_enabled = false;
907 
908 	if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
909 	    (radeon_encoder_get_dp_bridge_encoder_id(radeon_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) {
910 		struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
911 		struct drm_connector *connector =
912 			radeon_get_connector_for_encoder(radeon_crtc->encoder);
913 		struct radeon_connector *radeon_connector =
914 			to_radeon_connector(connector);
915 		struct radeon_connector_atom_dig *dig_connector =
916 			radeon_connector->con_priv;
917 		int dp_clock;
918 		radeon_crtc->bpc = radeon_get_monitor_bpc(connector);
919 
920 		switch (encoder_mode) {
921 		case ATOM_ENCODER_MODE_DP_MST:
922 		case ATOM_ENCODER_MODE_DP:
923 			/* DP/eDP */
924 			dp_clock = dig_connector->dp_clock / 10;
925 			if (ASIC_IS_DCE4(rdev))
926 				radeon_crtc->ss_enabled =
927 					radeon_atombios_get_asic_ss_info(rdev, &radeon_crtc->ss,
928 									 ASIC_INTERNAL_SS_ON_DP,
929 									 dp_clock);
930 			else {
931 				if (dp_clock == 16200) {
932 					radeon_crtc->ss_enabled =
933 						radeon_atombios_get_ppll_ss_info(rdev,
934 										 &radeon_crtc->ss,
935 										 ATOM_DP_SS_ID2);
936 					if (!radeon_crtc->ss_enabled)
937 						radeon_crtc->ss_enabled =
938 							radeon_atombios_get_ppll_ss_info(rdev,
939 											 &radeon_crtc->ss,
940 											 ATOM_DP_SS_ID1);
941 				} else
942 					radeon_crtc->ss_enabled =
943 						radeon_atombios_get_ppll_ss_info(rdev,
944 										 &radeon_crtc->ss,
945 										 ATOM_DP_SS_ID1);
946 			}
947 			break;
948 		case ATOM_ENCODER_MODE_LVDS:
949 			if (ASIC_IS_DCE4(rdev))
950 				radeon_crtc->ss_enabled =
951 					radeon_atombios_get_asic_ss_info(rdev,
952 									 &radeon_crtc->ss,
953 									 dig->lcd_ss_id,
954 									 mode->clock / 10);
955 			else
956 				radeon_crtc->ss_enabled =
957 					radeon_atombios_get_ppll_ss_info(rdev,
958 									 &radeon_crtc->ss,
959 									 dig->lcd_ss_id);
960 			break;
961 		case ATOM_ENCODER_MODE_DVI:
962 			if (ASIC_IS_DCE4(rdev))
963 				radeon_crtc->ss_enabled =
964 					radeon_atombios_get_asic_ss_info(rdev,
965 									 &radeon_crtc->ss,
966 									 ASIC_INTERNAL_SS_ON_TMDS,
967 									 mode->clock / 10);
968 			break;
969 		case ATOM_ENCODER_MODE_HDMI:
970 			if (ASIC_IS_DCE4(rdev))
971 				radeon_crtc->ss_enabled =
972 					radeon_atombios_get_asic_ss_info(rdev,
973 									 &radeon_crtc->ss,
974 									 ASIC_INTERNAL_SS_ON_HDMI,
975 									 mode->clock / 10);
976 			break;
977 		default:
978 			break;
979 		}
980 	}
981 
982 	/* adjust pixel clock as needed */
983 	radeon_crtc->adjusted_clock = atombios_adjust_pll(crtc, mode);
984 
985 	return true;
986 }
987 
988 static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
989 {
990 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
991 	struct drm_device *dev = crtc->dev;
992 	struct radeon_device *rdev = dev->dev_private;
993 	struct radeon_encoder *radeon_encoder =
994 		to_radeon_encoder(radeon_crtc->encoder);
995 	u32 pll_clock = mode->clock;
996 	u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
997 	struct radeon_pll *pll;
998 	int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
999 
1000 	switch (radeon_crtc->pll_id) {
1001 	case ATOM_PPLL1:
1002 		pll = &rdev->clock.p1pll;
1003 		break;
1004 	case ATOM_PPLL2:
1005 		pll = &rdev->clock.p2pll;
1006 		break;
1007 	case ATOM_DCPLL:
1008 	case ATOM_PPLL_INVALID:
1009 	default:
1010 		pll = &rdev->clock.dcpll;
1011 		break;
1012 	}
1013 
1014 	/* update pll params */
1015 	pll->flags = radeon_crtc->pll_flags;
1016 	pll->reference_div = radeon_crtc->pll_reference_div;
1017 	pll->post_div = radeon_crtc->pll_post_div;
1018 
1019 	if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
1020 		/* TV seems to prefer the legacy algo on some boards */
1021 		radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1022 					  &fb_div, &frac_fb_div, &ref_div, &post_div);
1023 	else if (ASIC_IS_AVIVO(rdev))
1024 		radeon_compute_pll_avivo(pll, radeon_crtc->adjusted_clock, &pll_clock,
1025 					 &fb_div, &frac_fb_div, &ref_div, &post_div);
1026 	else
1027 		radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1028 					  &fb_div, &frac_fb_div, &ref_div, &post_div);
1029 
1030 	atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id,
1031 				 radeon_crtc->crtc_id, &radeon_crtc->ss);
1032 
1033 	atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1034 				  encoder_mode, radeon_encoder->encoder_id, mode->clock,
1035 				  ref_div, fb_div, frac_fb_div, post_div,
1036 				  radeon_crtc->bpc, radeon_crtc->ss_enabled, &radeon_crtc->ss);
1037 
1038 	if (radeon_crtc->ss_enabled) {
1039 		/* calculate ss amount and step size */
1040 		if (ASIC_IS_DCE4(rdev)) {
1041 			u32 step_size;
1042 			u32 amount = (((fb_div * 10) + frac_fb_div) * radeon_crtc->ss.percentage) / 10000;
1043 			radeon_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK;
1044 			radeon_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) &
1045 				ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK;
1046 			if (radeon_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD)
1047 				step_size = (4 * amount * ref_div * (radeon_crtc->ss.rate * 2048)) /
1048 					(125 * 25 * pll->reference_freq / 100);
1049 			else
1050 				step_size = (2 * amount * ref_div * (radeon_crtc->ss.rate * 2048)) /
1051 					(125 * 25 * pll->reference_freq / 100);
1052 			radeon_crtc->ss.step = step_size;
1053 		}
1054 
1055 		atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id,
1056 					 radeon_crtc->crtc_id, &radeon_crtc->ss);
1057 	}
1058 }
1059 
1060 static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
1061 				 struct drm_framebuffer *fb,
1062 				 int x, int y, int atomic)
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_framebuffer *radeon_fb;
1068 	struct drm_framebuffer *target_fb;
1069 	struct drm_gem_object *obj;
1070 	struct radeon_bo *rbo;
1071 	uint64_t fb_location;
1072 	uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1073 	unsigned bankw, bankh, mtaspect, tile_split;
1074 	u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
1075 	u32 tmp, viewport_w, viewport_h;
1076 	int r;
1077 
1078 	/* no fb bound */
1079 	if (!atomic && !crtc->fb) {
1080 		DRM_DEBUG_KMS("No FB bound\n");
1081 		return 0;
1082 	}
1083 
1084 	if (atomic) {
1085 		radeon_fb = to_radeon_framebuffer(fb);
1086 		target_fb = fb;
1087 	}
1088 	else {
1089 		radeon_fb = to_radeon_framebuffer(crtc->fb);
1090 		target_fb = crtc->fb;
1091 	}
1092 
1093 	/* If atomic, assume fb object is pinned & idle & fenced and
1094 	 * just update base pointers
1095 	 */
1096 	obj = radeon_fb->obj;
1097 	rbo = gem_to_radeon_bo(obj);
1098 	r = radeon_bo_reserve(rbo, false);
1099 	if (unlikely(r != 0))
1100 		return r;
1101 
1102 	if (atomic)
1103 		fb_location = radeon_bo_gpu_offset(rbo);
1104 	else {
1105 		r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1106 		if (unlikely(r != 0)) {
1107 			radeon_bo_unreserve(rbo);
1108 			return -EINVAL;
1109 		}
1110 	}
1111 
1112 	radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1113 	radeon_bo_unreserve(rbo);
1114 
1115 	switch (target_fb->bits_per_pixel) {
1116 	case 8:
1117 		fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
1118 			     EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
1119 		break;
1120 	case 15:
1121 		fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1122 			     EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
1123 		break;
1124 	case 16:
1125 		fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1126 			     EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
1127 #ifdef __BIG_ENDIAN
1128 		fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1129 #endif
1130 		break;
1131 	case 24:
1132 	case 32:
1133 		fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1134 			     EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1135 #ifdef __BIG_ENDIAN
1136 		fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1137 #endif
1138 		break;
1139 	default:
1140 		DRM_ERROR("Unsupported screen depth %d\n",
1141 			  target_fb->bits_per_pixel);
1142 		return -EINVAL;
1143 	}
1144 
1145 	if (tiling_flags & RADEON_TILING_MACRO) {
1146 		if (rdev->family >= CHIP_BONAIRE)
1147 			tmp = rdev->config.cik.tile_config;
1148 		else if (rdev->family >= CHIP_TAHITI)
1149 			tmp = rdev->config.si.tile_config;
1150 		else if (rdev->family >= CHIP_CAYMAN)
1151 			tmp = rdev->config.cayman.tile_config;
1152 		else
1153 			tmp = rdev->config.evergreen.tile_config;
1154 
1155 		switch ((tmp & 0xf0) >> 4) {
1156 		case 0: /* 4 banks */
1157 			fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_4_BANK);
1158 			break;
1159 		case 1: /* 8 banks */
1160 		default:
1161 			fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_8_BANK);
1162 			break;
1163 		case 2: /* 16 banks */
1164 			fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_16_BANK);
1165 			break;
1166 		}
1167 
1168 		fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
1169 
1170 		evergreen_tiling_fields(tiling_flags, &bankw, &bankh, &mtaspect, &tile_split);
1171 		fb_format |= EVERGREEN_GRPH_TILE_SPLIT(tile_split);
1172 		fb_format |= EVERGREEN_GRPH_BANK_WIDTH(bankw);
1173 		fb_format |= EVERGREEN_GRPH_BANK_HEIGHT(bankh);
1174 		fb_format |= EVERGREEN_GRPH_MACRO_TILE_ASPECT(mtaspect);
1175 		if (rdev->family >= CHIP_BONAIRE) {
1176 			/* XXX need to know more about the surface tiling mode */
1177 			fb_format |= CIK_GRPH_MICRO_TILE_MODE(CIK_DISPLAY_MICRO_TILING);
1178 		}
1179 	} else if (tiling_flags & RADEON_TILING_MICRO)
1180 		fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
1181 
1182 	if (rdev->family >= CHIP_BONAIRE) {
1183 		u32 num_pipe_configs = rdev->config.cik.max_tile_pipes;
1184 		u32 num_rb = rdev->config.cik.max_backends_per_se;
1185 		if (num_pipe_configs > 8)
1186 			num_pipe_configs = 8;
1187 		if (num_pipe_configs == 8)
1188 			fb_format |= CIK_GRPH_PIPE_CONFIG(CIK_ADDR_SURF_P8_32x32_16x16);
1189 		else if (num_pipe_configs == 4) {
1190 			if (num_rb == 4)
1191 				fb_format |= CIK_GRPH_PIPE_CONFIG(CIK_ADDR_SURF_P4_16x16);
1192 			else if (num_rb < 4)
1193 				fb_format |= CIK_GRPH_PIPE_CONFIG(CIK_ADDR_SURF_P4_8x16);
1194 		} else if (num_pipe_configs == 2)
1195 			fb_format |= CIK_GRPH_PIPE_CONFIG(CIK_ADDR_SURF_P2);
1196 	} else if ((rdev->family == CHIP_TAHITI) ||
1197 		   (rdev->family == CHIP_PITCAIRN))
1198 		fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
1199 	else if (rdev->family == CHIP_VERDE)
1200 		fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
1201 
1202 	switch (radeon_crtc->crtc_id) {
1203 	case 0:
1204 		WREG32(AVIVO_D1VGA_CONTROL, 0);
1205 		break;
1206 	case 1:
1207 		WREG32(AVIVO_D2VGA_CONTROL, 0);
1208 		break;
1209 	case 2:
1210 		WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1211 		break;
1212 	case 3:
1213 		WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1214 		break;
1215 	case 4:
1216 		WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1217 		break;
1218 	case 5:
1219 		WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1220 		break;
1221 	default:
1222 		break;
1223 	}
1224 
1225 	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1226 	       upper_32_bits(fb_location));
1227 	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1228 	       upper_32_bits(fb_location));
1229 	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1230 	       (u32)fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1231 	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1232 	       (u32) fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1233 	WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1234 	WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1235 
1236 	WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1237 	WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1238 	WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
1239 	WREG32(EVERGREEN_GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1240 	WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1241 	WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1242 
1243 	fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
1244 	WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1245 	WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1246 
1247 	if (rdev->family >= CHIP_BONAIRE)
1248 		WREG32(CIK_LB_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1249 		       target_fb->height);
1250 	else
1251 		WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1252 		       target_fb->height);
1253 	x &= ~3;
1254 	y &= ~1;
1255 	WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
1256 	       (x << 16) | y);
1257 	viewport_w = crtc->mode.hdisplay;
1258 	viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1259 	WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1260 	       (viewport_w << 16) | viewport_h);
1261 
1262 	/* pageflip setup */
1263 	/* make sure flip is at vb rather than hb */
1264 	tmp = RREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
1265 	tmp &= ~EVERGREEN_GRPH_SURFACE_UPDATE_H_RETRACE_EN;
1266 	WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
1267 
1268 	/* set pageflip to happen anywhere in vblank interval */
1269 	WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1270 
1271 	if (!atomic && fb && fb != crtc->fb) {
1272 		radeon_fb = to_radeon_framebuffer(fb);
1273 		rbo = gem_to_radeon_bo(radeon_fb->obj);
1274 		r = radeon_bo_reserve(rbo, false);
1275 		if (unlikely(r != 0))
1276 			return r;
1277 		radeon_bo_unpin(rbo);
1278 		radeon_bo_unreserve(rbo);
1279 	}
1280 
1281 	/* Bytes per pixel may have changed */
1282 	radeon_bandwidth_update(rdev);
1283 
1284 	return 0;
1285 }
1286 
1287 static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
1288 				  struct drm_framebuffer *fb,
1289 				  int x, int y, int atomic)
1290 {
1291 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1292 	struct drm_device *dev = crtc->dev;
1293 	struct radeon_device *rdev = dev->dev_private;
1294 	struct radeon_framebuffer *radeon_fb;
1295 	struct drm_gem_object *obj;
1296 	struct radeon_bo *rbo;
1297 	struct drm_framebuffer *target_fb;
1298 	uint64_t fb_location;
1299 	uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1300 	u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
1301 	u32 tmp, viewport_w, viewport_h;
1302 	int r;
1303 
1304 	/* no fb bound */
1305 	if (!atomic && !crtc->fb) {
1306 		DRM_DEBUG_KMS("No FB bound\n");
1307 		return 0;
1308 	}
1309 
1310 	if (atomic) {
1311 		radeon_fb = to_radeon_framebuffer(fb);
1312 		target_fb = fb;
1313 	}
1314 	else {
1315 		radeon_fb = to_radeon_framebuffer(crtc->fb);
1316 		target_fb = crtc->fb;
1317 	}
1318 
1319 	obj = radeon_fb->obj;
1320 	rbo = gem_to_radeon_bo(obj);
1321 	r = radeon_bo_reserve(rbo, false);
1322 	if (unlikely(r != 0))
1323 		return r;
1324 
1325 	/* If atomic, assume fb object is pinned & idle & fenced and
1326 	 * just update base pointers
1327 	 */
1328 	if (atomic)
1329 		fb_location = radeon_bo_gpu_offset(rbo);
1330 	else {
1331 		r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1332 		if (unlikely(r != 0)) {
1333 			radeon_bo_unreserve(rbo);
1334 			return -EINVAL;
1335 		}
1336 	}
1337 	radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1338 	radeon_bo_unreserve(rbo);
1339 
1340 	switch (target_fb->bits_per_pixel) {
1341 	case 8:
1342 		fb_format =
1343 		    AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
1344 		    AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
1345 		break;
1346 	case 15:
1347 		fb_format =
1348 		    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1349 		    AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
1350 		break;
1351 	case 16:
1352 		fb_format =
1353 		    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1354 		    AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
1355 #ifdef __BIG_ENDIAN
1356 		fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1357 #endif
1358 		break;
1359 	case 24:
1360 	case 32:
1361 		fb_format =
1362 		    AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1363 		    AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1364 #ifdef __BIG_ENDIAN
1365 		fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1366 #endif
1367 		break;
1368 	default:
1369 		DRM_ERROR("Unsupported screen depth %d\n",
1370 			  target_fb->bits_per_pixel);
1371 		return -EINVAL;
1372 	}
1373 
1374 	if (rdev->family >= CHIP_R600) {
1375 		if (tiling_flags & RADEON_TILING_MACRO)
1376 			fb_format |= R600_D1GRPH_ARRAY_MODE_2D_TILED_THIN1;
1377 		else if (tiling_flags & RADEON_TILING_MICRO)
1378 			fb_format |= R600_D1GRPH_ARRAY_MODE_1D_TILED_THIN1;
1379 	} else {
1380 		if (tiling_flags & RADEON_TILING_MACRO)
1381 			fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
1382 
1383 		if (tiling_flags & RADEON_TILING_MICRO)
1384 			fb_format |= AVIVO_D1GRPH_TILED;
1385 	}
1386 
1387 	if (radeon_crtc->crtc_id == 0)
1388 		WREG32(AVIVO_D1VGA_CONTROL, 0);
1389 	else
1390 		WREG32(AVIVO_D2VGA_CONTROL, 0);
1391 
1392 	if (rdev->family >= CHIP_RV770) {
1393 		if (radeon_crtc->crtc_id) {
1394 			WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1395 			WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1396 		} else {
1397 			WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1398 			WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1399 		}
1400 	}
1401 	WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1402 	       (u32) fb_location);
1403 	WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
1404 	       radeon_crtc->crtc_offset, (u32) fb_location);
1405 	WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1406 	if (rdev->family >= CHIP_R600)
1407 		WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1408 
1409 	WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1410 	WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1411 	WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
1412 	WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1413 	WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1414 	WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1415 
1416 	fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
1417 	WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1418 	WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1419 
1420 	WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1421 	       target_fb->height);
1422 	x &= ~3;
1423 	y &= ~1;
1424 	WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
1425 	       (x << 16) | y);
1426 	viewport_w = crtc->mode.hdisplay;
1427 	viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1428 	WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1429 	       (viewport_w << 16) | viewport_h);
1430 
1431 	/* pageflip setup */
1432 	/* make sure flip is at vb rather than hb */
1433 	tmp = RREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset);
1434 	tmp &= ~AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN;
1435 	WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, tmp);
1436 
1437 	/* set pageflip to happen anywhere in vblank interval */
1438 	WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1439 
1440 	if (!atomic && fb && fb != crtc->fb) {
1441 		radeon_fb = to_radeon_framebuffer(fb);
1442 		rbo = gem_to_radeon_bo(radeon_fb->obj);
1443 		r = radeon_bo_reserve(rbo, false);
1444 		if (unlikely(r != 0))
1445 			return r;
1446 		radeon_bo_unpin(rbo);
1447 		radeon_bo_unreserve(rbo);
1448 	}
1449 
1450 	/* Bytes per pixel may have changed */
1451 	radeon_bandwidth_update(rdev);
1452 
1453 	return 0;
1454 }
1455 
1456 int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
1457 			   struct drm_framebuffer *old_fb)
1458 {
1459 	struct drm_device *dev = crtc->dev;
1460 	struct radeon_device *rdev = dev->dev_private;
1461 
1462 	if (ASIC_IS_DCE4(rdev))
1463 		return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
1464 	else if (ASIC_IS_AVIVO(rdev))
1465 		return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
1466 	else
1467 		return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
1468 }
1469 
1470 int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
1471                                   struct drm_framebuffer *fb,
1472 				  int x, int y, enum mode_set_atomic state)
1473 {
1474        struct drm_device *dev = crtc->dev;
1475        struct radeon_device *rdev = dev->dev_private;
1476 
1477 	if (ASIC_IS_DCE4(rdev))
1478 		return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
1479 	else if (ASIC_IS_AVIVO(rdev))
1480 		return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
1481 	else
1482 		return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
1483 }
1484 
1485 /* properly set additional regs when using atombios */
1486 static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
1487 {
1488 	struct drm_device *dev = crtc->dev;
1489 	struct radeon_device *rdev = dev->dev_private;
1490 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1491 	u32 disp_merge_cntl;
1492 
1493 	switch (radeon_crtc->crtc_id) {
1494 	case 0:
1495 		disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
1496 		disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
1497 		WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
1498 		break;
1499 	case 1:
1500 		disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
1501 		disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
1502 		WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
1503 		WREG32(RADEON_FP_H2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
1504 		WREG32(RADEON_FP_V2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
1505 		break;
1506 	}
1507 }
1508 
1509 /**
1510  * radeon_get_pll_use_mask - look up a mask of which pplls are in use
1511  *
1512  * @crtc: drm crtc
1513  *
1514  * Returns the mask of which PPLLs (Pixel PLLs) are in use.
1515  */
1516 static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc)
1517 {
1518 	struct drm_device *dev = crtc->dev;
1519 	struct drm_crtc *test_crtc;
1520 	struct radeon_crtc *test_radeon_crtc;
1521 	u32 pll_in_use = 0;
1522 
1523 	list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1524 		if (crtc == test_crtc)
1525 			continue;
1526 
1527 		test_radeon_crtc = to_radeon_crtc(test_crtc);
1528 		if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1529 			pll_in_use |= (1 << test_radeon_crtc->pll_id);
1530 	}
1531 	return pll_in_use;
1532 }
1533 
1534 /**
1535  * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP
1536  *
1537  * @crtc: drm crtc
1538  *
1539  * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is
1540  * also in DP mode.  For DP, a single PPLL can be used for all DP
1541  * crtcs/encoders.
1542  */
1543 static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
1544 {
1545 	struct drm_device *dev = crtc->dev;
1546 	struct drm_crtc *test_crtc;
1547 	struct radeon_crtc *test_radeon_crtc;
1548 
1549 	list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1550 		if (crtc == test_crtc)
1551 			continue;
1552 		test_radeon_crtc = to_radeon_crtc(test_crtc);
1553 		if (test_radeon_crtc->encoder &&
1554 		    ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1555 			/* for DP use the same PLL for all */
1556 			if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1557 				return test_radeon_crtc->pll_id;
1558 		}
1559 	}
1560 	return ATOM_PPLL_INVALID;
1561 }
1562 
1563 /**
1564  * radeon_get_shared_nondp_ppll - return the PPLL used by another non-DP crtc
1565  *
1566  * @crtc: drm crtc
1567  * @encoder: drm encoder
1568  *
1569  * Returns the PPLL (Pixel PLL) used by another non-DP crtc/encoder which can
1570  * be shared (i.e., same clock).
1571  */
1572 static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
1573 {
1574 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1575 	struct drm_device *dev = crtc->dev;
1576 	struct drm_crtc *test_crtc;
1577 	struct radeon_crtc *test_radeon_crtc;
1578 	u32 adjusted_clock, test_adjusted_clock;
1579 
1580 	adjusted_clock = radeon_crtc->adjusted_clock;
1581 
1582 	if (adjusted_clock == 0)
1583 		return ATOM_PPLL_INVALID;
1584 
1585 	list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1586 		if (crtc == test_crtc)
1587 			continue;
1588 		test_radeon_crtc = to_radeon_crtc(test_crtc);
1589 		if (test_radeon_crtc->encoder &&
1590 		    !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1591 			/* check if we are already driving this connector with another crtc */
1592 			if (test_radeon_crtc->connector == radeon_crtc->connector) {
1593 				/* if we are, return that pll */
1594 				if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1595 					return test_radeon_crtc->pll_id;
1596 			}
1597 			/* for non-DP check the clock */
1598 			test_adjusted_clock = test_radeon_crtc->adjusted_clock;
1599 			if ((crtc->mode.clock == test_crtc->mode.clock) &&
1600 			    (adjusted_clock == test_adjusted_clock) &&
1601 			    (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
1602 			    (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
1603 				return test_radeon_crtc->pll_id;
1604 		}
1605 	}
1606 	return ATOM_PPLL_INVALID;
1607 }
1608 
1609 /**
1610  * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc.
1611  *
1612  * @crtc: drm crtc
1613  *
1614  * Returns the PPLL (Pixel PLL) to be used by the crtc.  For DP monitors
1615  * a single PPLL can be used for all DP crtcs/encoders.  For non-DP
1616  * monitors a dedicated PPLL must be used.  If a particular board has
1617  * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
1618  * as there is no need to program the PLL itself.  If we are not able to
1619  * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
1620  * avoid messing up an existing monitor.
1621  *
1622  * Asic specific PLL information
1623  *
1624  * DCE 8.x
1625  * KB/KV
1626  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP)
1627  * CI
1628  * - PPLL0, PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1629  *
1630  * DCE 6.1
1631  * - PPLL2 is only available to UNIPHYA (both DP and non-DP)
1632  * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP)
1633  *
1634  * DCE 6.0
1635  * - PPLL0 is available to all UNIPHY (DP only)
1636  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1637  *
1638  * DCE 5.0
1639  * - DCPLL is available to all UNIPHY (DP only)
1640  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1641  *
1642  * DCE 3.0/4.0/4.1
1643  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1644  *
1645  */
1646 static int radeon_atom_pick_pll(struct drm_crtc *crtc)
1647 {
1648 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1649 	struct drm_device *dev = crtc->dev;
1650 	struct radeon_device *rdev = dev->dev_private;
1651 	struct radeon_encoder *radeon_encoder =
1652 		to_radeon_encoder(radeon_crtc->encoder);
1653 	u32 pll_in_use;
1654 	int pll;
1655 
1656 	if (ASIC_IS_DCE8(rdev)) {
1657 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1658 			if (rdev->clock.dp_extclk)
1659 				/* skip PPLL programming if using ext clock */
1660 				return ATOM_PPLL_INVALID;
1661 			else {
1662 				/* use the same PPLL for all DP monitors */
1663 				pll = radeon_get_shared_dp_ppll(crtc);
1664 				if (pll != ATOM_PPLL_INVALID)
1665 					return pll;
1666 			}
1667 		} else {
1668 			/* use the same PPLL for all monitors with the same clock */
1669 			pll = radeon_get_shared_nondp_ppll(crtc);
1670 			if (pll != ATOM_PPLL_INVALID)
1671 				return pll;
1672 		}
1673 		/* otherwise, pick one of the plls */
1674 		if ((rdev->family == CHIP_KAVERI) ||
1675 		    (rdev->family == CHIP_KABINI)) {
1676 			/* KB/KV has PPLL1 and PPLL2 */
1677 			pll_in_use = radeon_get_pll_use_mask(crtc);
1678 			if (!(pll_in_use & (1 << ATOM_PPLL2)))
1679 				return ATOM_PPLL2;
1680 			if (!(pll_in_use & (1 << ATOM_PPLL1)))
1681 				return ATOM_PPLL1;
1682 			DRM_ERROR("unable to allocate a PPLL\n");
1683 			return ATOM_PPLL_INVALID;
1684 		} else {
1685 			/* CI has PPLL0, PPLL1, and PPLL2 */
1686 			pll_in_use = radeon_get_pll_use_mask(crtc);
1687 			if (!(pll_in_use & (1 << ATOM_PPLL2)))
1688 				return ATOM_PPLL2;
1689 			if (!(pll_in_use & (1 << ATOM_PPLL1)))
1690 				return ATOM_PPLL1;
1691 			if (!(pll_in_use & (1 << ATOM_PPLL0)))
1692 				return ATOM_PPLL0;
1693 			DRM_ERROR("unable to allocate a PPLL\n");
1694 			return ATOM_PPLL_INVALID;
1695 		}
1696 	} else if (ASIC_IS_DCE61(rdev)) {
1697 		struct radeon_encoder_atom_dig *dig =
1698 			radeon_encoder->enc_priv;
1699 
1700 		if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) &&
1701 		    (dig->linkb == false))
1702 			/* UNIPHY A uses PPLL2 */
1703 			return ATOM_PPLL2;
1704 		else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1705 			/* UNIPHY B/C/D/E/F */
1706 			if (rdev->clock.dp_extclk)
1707 				/* skip PPLL programming if using ext clock */
1708 				return ATOM_PPLL_INVALID;
1709 			else {
1710 				/* use the same PPLL for all DP monitors */
1711 				pll = radeon_get_shared_dp_ppll(crtc);
1712 				if (pll != ATOM_PPLL_INVALID)
1713 					return pll;
1714 			}
1715 		} else {
1716 			/* use the same PPLL for all monitors with the same clock */
1717 			pll = radeon_get_shared_nondp_ppll(crtc);
1718 			if (pll != ATOM_PPLL_INVALID)
1719 				return pll;
1720 		}
1721 		/* UNIPHY B/C/D/E/F */
1722 		pll_in_use = radeon_get_pll_use_mask(crtc);
1723 		if (!(pll_in_use & (1 << ATOM_PPLL0)))
1724 			return ATOM_PPLL0;
1725 		if (!(pll_in_use & (1 << ATOM_PPLL1)))
1726 			return ATOM_PPLL1;
1727 		DRM_ERROR("unable to allocate a PPLL\n");
1728 		return ATOM_PPLL_INVALID;
1729 	} else if (ASIC_IS_DCE4(rdev)) {
1730 		/* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock,
1731 		 * depending on the asic:
1732 		 * DCE4: PPLL or ext clock
1733 		 * DCE5: PPLL, DCPLL, or ext clock
1734 		 * DCE6: PPLL, PPLL0, or ext clock
1735 		 *
1736 		 * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip
1737 		 * PPLL/DCPLL programming and only program the DP DTO for the
1738 		 * crtc virtual pixel clock.
1739 		 */
1740 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1741 			if (rdev->clock.dp_extclk)
1742 				/* skip PPLL programming if using ext clock */
1743 				return ATOM_PPLL_INVALID;
1744 			else if (ASIC_IS_DCE6(rdev))
1745 				/* use PPLL0 for all DP */
1746 				return ATOM_PPLL0;
1747 			else if (ASIC_IS_DCE5(rdev))
1748 				/* use DCPLL for all DP */
1749 				return ATOM_DCPLL;
1750 			else {
1751 				/* use the same PPLL for all DP monitors */
1752 				pll = radeon_get_shared_dp_ppll(crtc);
1753 				if (pll != ATOM_PPLL_INVALID)
1754 					return pll;
1755 			}
1756 		} else {
1757 			/* use the same PPLL for all monitors with the same clock */
1758 			pll = radeon_get_shared_nondp_ppll(crtc);
1759 			if (pll != ATOM_PPLL_INVALID)
1760 				return pll;
1761 		}
1762 		/* all other cases */
1763 		pll_in_use = radeon_get_pll_use_mask(crtc);
1764 		if (!(pll_in_use & (1 << ATOM_PPLL1)))
1765 			return ATOM_PPLL1;
1766 		if (!(pll_in_use & (1 << ATOM_PPLL2)))
1767 			return ATOM_PPLL2;
1768 		DRM_ERROR("unable to allocate a PPLL\n");
1769 		return ATOM_PPLL_INVALID;
1770 	} else {
1771 		/* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
1772 		/* some atombios (observed in some DCE2/DCE3) code have a bug,
1773 		 * the matching btw pll and crtc is done through
1774 		 * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the
1775 		 * pll (1 or 2) to select which register to write. ie if using
1776 		 * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2
1777 		 * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to
1778 		 * choose which value to write. Which is reverse order from
1779 		 * register logic. So only case that works is when pllid is
1780 		 * same as crtcid or when both pll and crtc are enabled and
1781 		 * both use same clock.
1782 		 *
1783 		 * So just return crtc id as if crtc and pll were hard linked
1784 		 * together even if they aren't
1785 		 */
1786 		return radeon_crtc->crtc_id;
1787 	}
1788 }
1789 
1790 void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
1791 {
1792 	/* always set DCPLL */
1793 	if (ASIC_IS_DCE6(rdev))
1794 		atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
1795 	else if (ASIC_IS_DCE4(rdev)) {
1796 		struct radeon_atom_ss ss;
1797 		bool ss_enabled = radeon_atombios_get_asic_ss_info(rdev, &ss,
1798 								   ASIC_INTERNAL_SS_ON_DCPLL,
1799 								   rdev->clock.default_dispclk);
1800 		if (ss_enabled)
1801 			atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
1802 		/* XXX: DCE5, make sure voltage, dispclk is high enough */
1803 		atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
1804 		if (ss_enabled)
1805 			atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
1806 	}
1807 
1808 }
1809 
1810 int atombios_crtc_mode_set(struct drm_crtc *crtc,
1811 			   struct drm_display_mode *mode,
1812 			   struct drm_display_mode *adjusted_mode,
1813 			   int x, int y, struct drm_framebuffer *old_fb)
1814 {
1815 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1816 	struct drm_device *dev = crtc->dev;
1817 	struct radeon_device *rdev = dev->dev_private;
1818 	struct radeon_encoder *radeon_encoder =
1819 		to_radeon_encoder(radeon_crtc->encoder);
1820 	bool is_tvcv = false;
1821 
1822 	if (radeon_encoder->active_device &
1823 	    (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
1824 		is_tvcv = true;
1825 
1826 	atombios_crtc_set_pll(crtc, adjusted_mode);
1827 
1828 	if (ASIC_IS_DCE4(rdev))
1829 		atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
1830 	else if (ASIC_IS_AVIVO(rdev)) {
1831 		if (is_tvcv)
1832 			atombios_crtc_set_timing(crtc, adjusted_mode);
1833 		else
1834 			atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
1835 	} else {
1836 		atombios_crtc_set_timing(crtc, adjusted_mode);
1837 		if (radeon_crtc->crtc_id == 0)
1838 			atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
1839 		radeon_legacy_atom_fixup(crtc);
1840 	}
1841 	atombios_crtc_set_base(crtc, x, y, old_fb);
1842 	atombios_overscan_setup(crtc, mode, adjusted_mode);
1843 	atombios_scaler_setup(crtc);
1844 	/* update the hw version fpr dpm */
1845 	radeon_crtc->hw_mode = *adjusted_mode;
1846 
1847 	return 0;
1848 }
1849 
1850 static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
1851 				     const struct drm_display_mode *mode,
1852 				     struct drm_display_mode *adjusted_mode)
1853 {
1854 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1855 	struct drm_device *dev = crtc->dev;
1856 	struct drm_encoder *encoder;
1857 
1858 	/* assign the encoder to the radeon crtc to avoid repeated lookups later */
1859 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1860 		if (encoder->crtc == crtc) {
1861 			radeon_crtc->encoder = encoder;
1862 			radeon_crtc->connector = radeon_get_connector_for_encoder(encoder);
1863 			break;
1864 		}
1865 	}
1866 	if ((radeon_crtc->encoder == NULL) || (radeon_crtc->connector == NULL)) {
1867 		radeon_crtc->encoder = NULL;
1868 		radeon_crtc->connector = NULL;
1869 		return false;
1870 	}
1871 	if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
1872 		return false;
1873 	if (!atombios_crtc_prepare_pll(crtc, adjusted_mode))
1874 		return false;
1875 	/* pick pll */
1876 	radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
1877 	/* if we can't get a PPLL for a non-DP encoder, fail */
1878 	if ((radeon_crtc->pll_id == ATOM_PPLL_INVALID) &&
1879 	    !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder)))
1880 		return false;
1881 
1882 	return true;
1883 }
1884 
1885 static void atombios_crtc_prepare(struct drm_crtc *crtc)
1886 {
1887 	struct drm_device *dev = crtc->dev;
1888 	struct radeon_device *rdev = dev->dev_private;
1889 
1890 	/* disable crtc pair power gating before programming */
1891 	if (ASIC_IS_DCE6(rdev))
1892 		atombios_powergate_crtc(crtc, ATOM_DISABLE);
1893 
1894 	atombios_lock_crtc(crtc, ATOM_ENABLE);
1895 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1896 }
1897 
1898 static void atombios_crtc_commit(struct drm_crtc *crtc)
1899 {
1900 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
1901 	atombios_lock_crtc(crtc, ATOM_DISABLE);
1902 }
1903 
1904 static void atombios_crtc_disable(struct drm_crtc *crtc)
1905 {
1906 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1907 	struct drm_device *dev = crtc->dev;
1908 	struct radeon_device *rdev = dev->dev_private;
1909 	struct radeon_atom_ss ss;
1910 	int i;
1911 
1912 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1913 	/* disable the GRPH */
1914 	if (ASIC_IS_DCE4(rdev))
1915 		WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
1916 	else if (ASIC_IS_AVIVO(rdev))
1917 		WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
1918 
1919 	if (ASIC_IS_DCE6(rdev))
1920 		atombios_powergate_crtc(crtc, ATOM_ENABLE);
1921 
1922 	for (i = 0; i < rdev->num_crtc; i++) {
1923 		if (rdev->mode_info.crtcs[i] &&
1924 		    rdev->mode_info.crtcs[i]->enabled &&
1925 		    i != radeon_crtc->crtc_id &&
1926 		    radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
1927 			/* one other crtc is using this pll don't turn
1928 			 * off the pll
1929 			 */
1930 			goto done;
1931 		}
1932 	}
1933 
1934 	switch (radeon_crtc->pll_id) {
1935 	case ATOM_PPLL1:
1936 	case ATOM_PPLL2:
1937 		/* disable the ppll */
1938 		atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1939 					  0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
1940 		break;
1941 	case ATOM_PPLL0:
1942 		/* disable the ppll */
1943 		if ((rdev->family == CHIP_ARUBA) || (rdev->family == CHIP_BONAIRE))
1944 			atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1945 						  0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
1946 		break;
1947 	default:
1948 		break;
1949 	}
1950 done:
1951 	radeon_crtc->pll_id = ATOM_PPLL_INVALID;
1952 	radeon_crtc->adjusted_clock = 0;
1953 	radeon_crtc->encoder = NULL;
1954 	radeon_crtc->connector = NULL;
1955 }
1956 
1957 static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
1958 	.dpms = atombios_crtc_dpms,
1959 	.mode_fixup = atombios_crtc_mode_fixup,
1960 	.mode_set = atombios_crtc_mode_set,
1961 	.mode_set_base = atombios_crtc_set_base,
1962 	.mode_set_base_atomic = atombios_crtc_set_base_atomic,
1963 	.prepare = atombios_crtc_prepare,
1964 	.commit = atombios_crtc_commit,
1965 	.load_lut = radeon_crtc_load_lut,
1966 	.disable = atombios_crtc_disable,
1967 };
1968 
1969 void radeon_atombios_init_crtc(struct drm_device *dev,
1970 			       struct radeon_crtc *radeon_crtc)
1971 {
1972 	struct radeon_device *rdev = dev->dev_private;
1973 
1974 	if (ASIC_IS_DCE4(rdev)) {
1975 		switch (radeon_crtc->crtc_id) {
1976 		case 0:
1977 		default:
1978 			radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
1979 			break;
1980 		case 1:
1981 			radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
1982 			break;
1983 		case 2:
1984 			radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
1985 			break;
1986 		case 3:
1987 			radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
1988 			break;
1989 		case 4:
1990 			radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
1991 			break;
1992 		case 5:
1993 			radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
1994 			break;
1995 		}
1996 	} else {
1997 		if (radeon_crtc->crtc_id == 1)
1998 			radeon_crtc->crtc_offset =
1999 				AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2000 		else
2001 			radeon_crtc->crtc_offset = 0;
2002 	}
2003 	radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2004 	radeon_crtc->adjusted_clock = 0;
2005 	radeon_crtc->encoder = NULL;
2006 	radeon_crtc->connector = NULL;
2007 	drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2008 }
2009