xref: /linux/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c (revision a3a02a52bcfcbcc4a637d4b68bf1bc391c9fad02)
1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23 
24 #include <linux/pci.h>
25 
26 #include <drm/drm_edid.h>
27 #include <drm/drm_fourcc.h>
28 #include <drm/drm_modeset_helper.h>
29 #include <drm/drm_modeset_helper_vtables.h>
30 #include <drm/drm_vblank.h>
31 
32 #include "amdgpu.h"
33 #include "amdgpu_pm.h"
34 #include "amdgpu_i2c.h"
35 #include "atom.h"
36 #include "amdgpu_atombios.h"
37 #include "atombios_crtc.h"
38 #include "atombios_encoders.h"
39 #include "amdgpu_pll.h"
40 #include "amdgpu_connectors.h"
41 #include "amdgpu_display.h"
42 
43 #include "bif/bif_3_0_d.h"
44 #include "bif/bif_3_0_sh_mask.h"
45 #include "oss/oss_1_0_d.h"
46 #include "oss/oss_1_0_sh_mask.h"
47 #include "gca/gfx_6_0_d.h"
48 #include "gca/gfx_6_0_sh_mask.h"
49 #include "gmc/gmc_6_0_d.h"
50 #include "gmc/gmc_6_0_sh_mask.h"
51 #include "dce/dce_6_0_d.h"
52 #include "dce/dce_6_0_sh_mask.h"
53 #include "gca/gfx_7_2_enum.h"
54 #include "dce_v6_0.h"
55 #include "si_enums.h"
56 
57 static void dce_v6_0_set_display_funcs(struct amdgpu_device *adev);
58 static void dce_v6_0_set_irq_funcs(struct amdgpu_device *adev);
59 
60 static const u32 crtc_offsets[6] =
61 {
62 	SI_CRTC0_REGISTER_OFFSET,
63 	SI_CRTC1_REGISTER_OFFSET,
64 	SI_CRTC2_REGISTER_OFFSET,
65 	SI_CRTC3_REGISTER_OFFSET,
66 	SI_CRTC4_REGISTER_OFFSET,
67 	SI_CRTC5_REGISTER_OFFSET
68 };
69 
70 static const u32 hpd_offsets[] =
71 {
72 	mmDC_HPD1_INT_STATUS - mmDC_HPD1_INT_STATUS,
73 	mmDC_HPD2_INT_STATUS - mmDC_HPD1_INT_STATUS,
74 	mmDC_HPD3_INT_STATUS - mmDC_HPD1_INT_STATUS,
75 	mmDC_HPD4_INT_STATUS - mmDC_HPD1_INT_STATUS,
76 	mmDC_HPD5_INT_STATUS - mmDC_HPD1_INT_STATUS,
77 	mmDC_HPD6_INT_STATUS - mmDC_HPD1_INT_STATUS,
78 };
79 
80 static const uint32_t dig_offsets[] = {
81 	SI_CRTC0_REGISTER_OFFSET,
82 	SI_CRTC1_REGISTER_OFFSET,
83 	SI_CRTC2_REGISTER_OFFSET,
84 	SI_CRTC3_REGISTER_OFFSET,
85 	SI_CRTC4_REGISTER_OFFSET,
86 	SI_CRTC5_REGISTER_OFFSET,
87 	(0x13830 - 0x7030) >> 2,
88 };
89 
90 static const struct {
91 	uint32_t	reg;
92 	uint32_t	vblank;
93 	uint32_t	vline;
94 	uint32_t	hpd;
95 
96 } interrupt_status_offsets[6] = { {
97 	.reg = mmDISP_INTERRUPT_STATUS,
98 	.vblank = DISP_INTERRUPT_STATUS__LB_D1_VBLANK_INTERRUPT_MASK,
99 	.vline = DISP_INTERRUPT_STATUS__LB_D1_VLINE_INTERRUPT_MASK,
100 	.hpd = DISP_INTERRUPT_STATUS__DC_HPD1_INTERRUPT_MASK
101 }, {
102 	.reg = mmDISP_INTERRUPT_STATUS_CONTINUE,
103 	.vblank = DISP_INTERRUPT_STATUS_CONTINUE__LB_D2_VBLANK_INTERRUPT_MASK,
104 	.vline = DISP_INTERRUPT_STATUS_CONTINUE__LB_D2_VLINE_INTERRUPT_MASK,
105 	.hpd = DISP_INTERRUPT_STATUS_CONTINUE__DC_HPD2_INTERRUPT_MASK
106 }, {
107 	.reg = mmDISP_INTERRUPT_STATUS_CONTINUE2,
108 	.vblank = DISP_INTERRUPT_STATUS_CONTINUE2__LB_D3_VBLANK_INTERRUPT_MASK,
109 	.vline = DISP_INTERRUPT_STATUS_CONTINUE2__LB_D3_VLINE_INTERRUPT_MASK,
110 	.hpd = DISP_INTERRUPT_STATUS_CONTINUE2__DC_HPD3_INTERRUPT_MASK
111 }, {
112 	.reg = mmDISP_INTERRUPT_STATUS_CONTINUE3,
113 	.vblank = DISP_INTERRUPT_STATUS_CONTINUE3__LB_D4_VBLANK_INTERRUPT_MASK,
114 	.vline = DISP_INTERRUPT_STATUS_CONTINUE3__LB_D4_VLINE_INTERRUPT_MASK,
115 	.hpd = DISP_INTERRUPT_STATUS_CONTINUE3__DC_HPD4_INTERRUPT_MASK
116 }, {
117 	.reg = mmDISP_INTERRUPT_STATUS_CONTINUE4,
118 	.vblank = DISP_INTERRUPT_STATUS_CONTINUE4__LB_D5_VBLANK_INTERRUPT_MASK,
119 	.vline = DISP_INTERRUPT_STATUS_CONTINUE4__LB_D5_VLINE_INTERRUPT_MASK,
120 	.hpd = DISP_INTERRUPT_STATUS_CONTINUE4__DC_HPD5_INTERRUPT_MASK
121 }, {
122 	.reg = mmDISP_INTERRUPT_STATUS_CONTINUE5,
123 	.vblank = DISP_INTERRUPT_STATUS_CONTINUE5__LB_D6_VBLANK_INTERRUPT_MASK,
124 	.vline = DISP_INTERRUPT_STATUS_CONTINUE5__LB_D6_VLINE_INTERRUPT_MASK,
125 	.hpd = DISP_INTERRUPT_STATUS_CONTINUE5__DC_HPD6_INTERRUPT_MASK
126 } };
127 
128 static u32 dce_v6_0_audio_endpt_rreg(struct amdgpu_device *adev,
129 				     u32 block_offset, u32 reg)
130 {
131 	unsigned long flags;
132 	u32 r;
133 
134 	spin_lock_irqsave(&adev->audio_endpt_idx_lock, flags);
135 	WREG32(mmAZALIA_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
136 	r = RREG32(mmAZALIA_F0_CODEC_ENDPOINT_DATA + block_offset);
137 	spin_unlock_irqrestore(&adev->audio_endpt_idx_lock, flags);
138 
139 	return r;
140 }
141 
142 static void dce_v6_0_audio_endpt_wreg(struct amdgpu_device *adev,
143 				      u32 block_offset, u32 reg, u32 v)
144 {
145 	unsigned long flags;
146 
147 	spin_lock_irqsave(&adev->audio_endpt_idx_lock, flags);
148 	WREG32(mmAZALIA_F0_CODEC_ENDPOINT_INDEX + block_offset,
149 		reg | AZALIA_F0_CODEC_ENDPOINT_INDEX__AZALIA_ENDPOINT_REG_WRITE_EN_MASK);
150 	WREG32(mmAZALIA_F0_CODEC_ENDPOINT_DATA + block_offset, v);
151 	spin_unlock_irqrestore(&adev->audio_endpt_idx_lock, flags);
152 }
153 
154 static u32 dce_v6_0_vblank_get_counter(struct amdgpu_device *adev, int crtc)
155 {
156 	if (crtc >= adev->mode_info.num_crtc)
157 		return 0;
158 	else
159 		return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]);
160 }
161 
162 static void dce_v6_0_pageflip_interrupt_init(struct amdgpu_device *adev)
163 {
164 	unsigned i;
165 
166 	/* Enable pflip interrupts */
167 	for (i = 0; i < adev->mode_info.num_crtc; i++)
168 		amdgpu_irq_get(adev, &adev->pageflip_irq, i);
169 }
170 
171 static void dce_v6_0_pageflip_interrupt_fini(struct amdgpu_device *adev)
172 {
173 	unsigned i;
174 
175 	/* Disable pflip interrupts */
176 	for (i = 0; i < adev->mode_info.num_crtc; i++)
177 		amdgpu_irq_put(adev, &adev->pageflip_irq, i);
178 }
179 
180 /**
181  * dce_v6_0_page_flip - pageflip callback.
182  *
183  * @adev: amdgpu_device pointer
184  * @crtc_id: crtc to cleanup pageflip on
185  * @crtc_base: new address of the crtc (GPU MC address)
186  * @async: asynchronous flip
187  *
188  * Does the actual pageflip (evergreen+).
189  * During vblank we take the crtc lock and wait for the update_pending
190  * bit to go high, when it does, we release the lock, and allow the
191  * double buffered update to take place.
192  * Returns the current update pending status.
193  */
194 static void dce_v6_0_page_flip(struct amdgpu_device *adev,
195 			       int crtc_id, u64 crtc_base, bool async)
196 {
197 	struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
198 	struct drm_framebuffer *fb = amdgpu_crtc->base.primary->fb;
199 
200 	/* flip at hsync for async, default is vsync */
201 	WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, async ?
202 	       GRPH_FLIP_CONTROL__GRPH_SURFACE_UPDATE_H_RETRACE_EN_MASK : 0);
203 	/* update pitch */
204 	WREG32(mmGRPH_PITCH + amdgpu_crtc->crtc_offset,
205 	       fb->pitches[0] / fb->format->cpp[0]);
206 	/* update the scanout addresses */
207 	WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,
208 	       upper_32_bits(crtc_base));
209 	WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset,
210 	       (u32)crtc_base);
211 
212 	/* post the write */
213 	RREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset);
214 }
215 
216 static int dce_v6_0_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
217 					u32 *vbl, u32 *position)
218 {
219 	if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
220 		return -EINVAL;
221 	*vbl = RREG32(mmCRTC_V_BLANK_START_END + crtc_offsets[crtc]);
222 	*position = RREG32(mmCRTC_STATUS_POSITION + crtc_offsets[crtc]);
223 
224 	return 0;
225 
226 }
227 
228 /**
229  * dce_v6_0_hpd_sense - hpd sense callback.
230  *
231  * @adev: amdgpu_device pointer
232  * @hpd: hpd (hotplug detect) pin
233  *
234  * Checks if a digital monitor is connected (evergreen+).
235  * Returns true if connected, false if not connected.
236  */
237 static bool dce_v6_0_hpd_sense(struct amdgpu_device *adev,
238 			       enum amdgpu_hpd_id hpd)
239 {
240 	bool connected = false;
241 
242 	if (hpd >= adev->mode_info.num_hpd)
243 		return connected;
244 
245 	if (RREG32(mmDC_HPD1_INT_STATUS + hpd_offsets[hpd]) & DC_HPD1_INT_STATUS__DC_HPD1_SENSE_MASK)
246 		connected = true;
247 
248 	return connected;
249 }
250 
251 /**
252  * dce_v6_0_hpd_set_polarity - hpd set polarity callback.
253  *
254  * @adev: amdgpu_device pointer
255  * @hpd: hpd (hotplug detect) pin
256  *
257  * Set the polarity of the hpd pin (evergreen+).
258  */
259 static void dce_v6_0_hpd_set_polarity(struct amdgpu_device *adev,
260 				      enum amdgpu_hpd_id hpd)
261 {
262 	u32 tmp;
263 	bool connected = dce_v6_0_hpd_sense(adev, hpd);
264 
265 	if (hpd >= adev->mode_info.num_hpd)
266 		return;
267 
268 	tmp = RREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[hpd]);
269 	if (connected)
270 		tmp &= ~DC_HPD1_INT_CONTROL__DC_HPD1_INT_POLARITY_MASK;
271 	else
272 		tmp |= DC_HPD1_INT_CONTROL__DC_HPD1_INT_POLARITY_MASK;
273 	WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[hpd], tmp);
274 }
275 
276 static void dce_v6_0_hpd_int_ack(struct amdgpu_device *adev,
277 				 int hpd)
278 {
279 	u32 tmp;
280 
281 	if (hpd >= adev->mode_info.num_hpd) {
282 		DRM_DEBUG("invalid hdp %d\n", hpd);
283 		return;
284 	}
285 
286 	tmp = RREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[hpd]);
287 	tmp |= DC_HPD1_INT_CONTROL__DC_HPD1_INT_ACK_MASK;
288 	WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[hpd], tmp);
289 }
290 
291 /**
292  * dce_v6_0_hpd_init - hpd setup callback.
293  *
294  * @adev: amdgpu_device pointer
295  *
296  * Setup the hpd pins used by the card (evergreen+).
297  * Enable the pin, set the polarity, and enable the hpd interrupts.
298  */
299 static void dce_v6_0_hpd_init(struct amdgpu_device *adev)
300 {
301 	struct drm_device *dev = adev_to_drm(adev);
302 	struct drm_connector *connector;
303 	struct drm_connector_list_iter iter;
304 	u32 tmp;
305 
306 	drm_connector_list_iter_begin(dev, &iter);
307 	drm_for_each_connector_iter(connector, &iter) {
308 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
309 
310 		if (amdgpu_connector->hpd.hpd >= adev->mode_info.num_hpd)
311 			continue;
312 
313 		tmp = RREG32(mmDC_HPD1_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
314 		tmp |= DC_HPD1_CONTROL__DC_HPD1_EN_MASK;
315 		WREG32(mmDC_HPD1_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
316 
317 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
318 		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
319 			/* don't try to enable hpd on eDP or LVDS avoid breaking the
320 			 * aux dp channel on imac and help (but not completely fix)
321 			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
322 			 * also avoid interrupt storms during dpms.
323 			 */
324 			tmp = RREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
325 			tmp &= ~DC_HPD1_INT_CONTROL__DC_HPD1_INT_EN_MASK;
326 			WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
327 			continue;
328 		}
329 
330 		dce_v6_0_hpd_int_ack(adev, amdgpu_connector->hpd.hpd);
331 		dce_v6_0_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd);
332 		amdgpu_irq_get(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd);
333 	}
334 	drm_connector_list_iter_end(&iter);
335 }
336 
337 /**
338  * dce_v6_0_hpd_fini - hpd tear down callback.
339  *
340  * @adev: amdgpu_device pointer
341  *
342  * Tear down the hpd pins used by the card (evergreen+).
343  * Disable the hpd interrupts.
344  */
345 static void dce_v6_0_hpd_fini(struct amdgpu_device *adev)
346 {
347 	struct drm_device *dev = adev_to_drm(adev);
348 	struct drm_connector *connector;
349 	struct drm_connector_list_iter iter;
350 	u32 tmp;
351 
352 	drm_connector_list_iter_begin(dev, &iter);
353 	drm_for_each_connector_iter(connector, &iter) {
354 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
355 
356 		if (amdgpu_connector->hpd.hpd >= adev->mode_info.num_hpd)
357 			continue;
358 
359 		tmp = RREG32(mmDC_HPD1_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
360 		tmp &= ~DC_HPD1_CONTROL__DC_HPD1_EN_MASK;
361 		WREG32(mmDC_HPD1_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
362 
363 		amdgpu_irq_put(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd);
364 	}
365 	drm_connector_list_iter_end(&iter);
366 }
367 
368 static u32 dce_v6_0_hpd_get_gpio_reg(struct amdgpu_device *adev)
369 {
370 	return mmDC_GPIO_HPD_A;
371 }
372 
373 static void dce_v6_0_set_vga_render_state(struct amdgpu_device *adev,
374 					  bool render)
375 {
376 	if (!render)
377 		WREG32(mmVGA_RENDER_CONTROL,
378 			RREG32(mmVGA_RENDER_CONTROL) & VGA_VSTATUS_CNTL);
379 
380 }
381 
382 static int dce_v6_0_get_num_crtc(struct amdgpu_device *adev)
383 {
384 	switch (adev->asic_type) {
385 	case CHIP_TAHITI:
386 	case CHIP_PITCAIRN:
387 	case CHIP_VERDE:
388 		return 6;
389 	case CHIP_OLAND:
390 		return 2;
391 	default:
392 		return 0;
393 	}
394 }
395 
396 void dce_v6_0_disable_dce(struct amdgpu_device *adev)
397 {
398 	/*Disable VGA render and enabled crtc, if has DCE engine*/
399 	if (amdgpu_atombios_has_dce_engine_info(adev)) {
400 		u32 tmp;
401 		int crtc_enabled, i;
402 
403 		dce_v6_0_set_vga_render_state(adev, false);
404 
405 		/*Disable crtc*/
406 		for (i = 0; i < dce_v6_0_get_num_crtc(adev); i++) {
407 			crtc_enabled = RREG32(mmCRTC_CONTROL + crtc_offsets[i]) &
408 				CRTC_CONTROL__CRTC_MASTER_EN_MASK;
409 			if (crtc_enabled) {
410 				WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
411 				tmp = RREG32(mmCRTC_CONTROL + crtc_offsets[i]);
412 				tmp &= ~CRTC_CONTROL__CRTC_MASTER_EN_MASK;
413 				WREG32(mmCRTC_CONTROL + crtc_offsets[i], tmp);
414 				WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
415 			}
416 		}
417 	}
418 }
419 
420 static void dce_v6_0_program_fmt(struct drm_encoder *encoder)
421 {
422 
423 	struct drm_device *dev = encoder->dev;
424 	struct amdgpu_device *adev = drm_to_adev(dev);
425 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
426 	struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder);
427 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(encoder->crtc);
428 	int bpc = 0;
429 	u32 tmp = 0;
430 	enum amdgpu_connector_dither dither = AMDGPU_FMT_DITHER_DISABLE;
431 
432 	if (connector) {
433 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
434 		bpc = amdgpu_connector_get_monitor_bpc(connector);
435 		dither = amdgpu_connector->dither;
436 	}
437 
438 	/* LVDS FMT is set up by atom */
439 	if (amdgpu_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
440 		return;
441 
442 	if (bpc == 0)
443 		return;
444 
445 
446 	switch (bpc) {
447 	case 6:
448 		if (dither == AMDGPU_FMT_DITHER_ENABLE)
449 			/* XXX sort out optimal dither settings */
450 			tmp |= (FMT_BIT_DEPTH_CONTROL__FMT_FRAME_RANDOM_ENABLE_MASK |
451 				FMT_BIT_DEPTH_CONTROL__FMT_HIGHPASS_RANDOM_ENABLE_MASK |
452 				FMT_BIT_DEPTH_CONTROL__FMT_SPATIAL_DITHER_EN_MASK);
453 		else
454 			tmp |= FMT_BIT_DEPTH_CONTROL__FMT_TRUNCATE_EN_MASK;
455 		break;
456 	case 8:
457 		if (dither == AMDGPU_FMT_DITHER_ENABLE)
458 			/* XXX sort out optimal dither settings */
459 			tmp |= (FMT_BIT_DEPTH_CONTROL__FMT_FRAME_RANDOM_ENABLE_MASK |
460 				FMT_BIT_DEPTH_CONTROL__FMT_HIGHPASS_RANDOM_ENABLE_MASK |
461 				FMT_BIT_DEPTH_CONTROL__FMT_RGB_RANDOM_ENABLE_MASK |
462 				FMT_BIT_DEPTH_CONTROL__FMT_SPATIAL_DITHER_EN_MASK |
463 				FMT_BIT_DEPTH_CONTROL__FMT_SPATIAL_DITHER_DEPTH_MASK);
464 		else
465 			tmp |= (FMT_BIT_DEPTH_CONTROL__FMT_TRUNCATE_EN_MASK |
466 				FMT_BIT_DEPTH_CONTROL__FMT_TRUNCATE_DEPTH_MASK);
467 		break;
468 	case 10:
469 	default:
470 		/* not needed */
471 		break;
472 	}
473 
474 	WREG32(mmFMT_BIT_DEPTH_CONTROL + amdgpu_crtc->crtc_offset, tmp);
475 }
476 
477 /**
478  * si_get_number_of_dram_channels - get the number of dram channels
479  *
480  * @adev: amdgpu_device pointer
481  *
482  * Look up the number of video ram channels (CIK).
483  * Used for display watermark bandwidth calculations
484  * Returns the number of dram channels
485  */
486 static u32 si_get_number_of_dram_channels(struct amdgpu_device *adev)
487 {
488 	u32 tmp = RREG32(mmMC_SHARED_CHMAP);
489 
490 	switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
491 	case 0:
492 	default:
493 		return 1;
494 	case 1:
495 		return 2;
496 	case 2:
497 		return 4;
498 	case 3:
499 		return 8;
500 	case 4:
501 		return 3;
502 	case 5:
503 		return 6;
504 	case 6:
505 		return 10;
506 	case 7:
507 		return 12;
508 	case 8:
509 		return 16;
510 	}
511 }
512 
513 struct dce6_wm_params {
514 	u32 dram_channels; /* number of dram channels */
515 	u32 yclk;          /* bandwidth per dram data pin in kHz */
516 	u32 sclk;          /* engine clock in kHz */
517 	u32 disp_clk;      /* display clock in kHz */
518 	u32 src_width;     /* viewport width */
519 	u32 active_time;   /* active display time in ns */
520 	u32 blank_time;    /* blank time in ns */
521 	bool interlaced;    /* mode is interlaced */
522 	fixed20_12 vsc;    /* vertical scale ratio */
523 	u32 num_heads;     /* number of active crtcs */
524 	u32 bytes_per_pixel; /* bytes per pixel display + overlay */
525 	u32 lb_size;       /* line buffer allocated to pipe */
526 	u32 vtaps;         /* vertical scaler taps */
527 };
528 
529 /**
530  * dce_v6_0_dram_bandwidth - get the dram bandwidth
531  *
532  * @wm: watermark calculation data
533  *
534  * Calculate the raw dram bandwidth (CIK).
535  * Used for display watermark bandwidth calculations
536  * Returns the dram bandwidth in MBytes/s
537  */
538 static u32 dce_v6_0_dram_bandwidth(struct dce6_wm_params *wm)
539 {
540 	/* Calculate raw DRAM Bandwidth */
541 	fixed20_12 dram_efficiency; /* 0.7 */
542 	fixed20_12 yclk, dram_channels, bandwidth;
543 	fixed20_12 a;
544 
545 	a.full = dfixed_const(1000);
546 	yclk.full = dfixed_const(wm->yclk);
547 	yclk.full = dfixed_div(yclk, a);
548 	dram_channels.full = dfixed_const(wm->dram_channels * 4);
549 	a.full = dfixed_const(10);
550 	dram_efficiency.full = dfixed_const(7);
551 	dram_efficiency.full = dfixed_div(dram_efficiency, a);
552 	bandwidth.full = dfixed_mul(dram_channels, yclk);
553 	bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);
554 
555 	return dfixed_trunc(bandwidth);
556 }
557 
558 /**
559  * dce_v6_0_dram_bandwidth_for_display - get the dram bandwidth for display
560  *
561  * @wm: watermark calculation data
562  *
563  * Calculate the dram bandwidth used for display (CIK).
564  * Used for display watermark bandwidth calculations
565  * Returns the dram bandwidth for display in MBytes/s
566  */
567 static u32 dce_v6_0_dram_bandwidth_for_display(struct dce6_wm_params *wm)
568 {
569 	/* Calculate DRAM Bandwidth and the part allocated to display. */
570 	fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */
571 	fixed20_12 yclk, dram_channels, bandwidth;
572 	fixed20_12 a;
573 
574 	a.full = dfixed_const(1000);
575 	yclk.full = dfixed_const(wm->yclk);
576 	yclk.full = dfixed_div(yclk, a);
577 	dram_channels.full = dfixed_const(wm->dram_channels * 4);
578 	a.full = dfixed_const(10);
579 	disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */
580 	disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a);
581 	bandwidth.full = dfixed_mul(dram_channels, yclk);
582 	bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);
583 
584 	return dfixed_trunc(bandwidth);
585 }
586 
587 /**
588  * dce_v6_0_data_return_bandwidth - get the data return bandwidth
589  *
590  * @wm: watermark calculation data
591  *
592  * Calculate the data return bandwidth used for display (CIK).
593  * Used for display watermark bandwidth calculations
594  * Returns the data return bandwidth in MBytes/s
595  */
596 static u32 dce_v6_0_data_return_bandwidth(struct dce6_wm_params *wm)
597 {
598 	/* Calculate the display Data return Bandwidth */
599 	fixed20_12 return_efficiency; /* 0.8 */
600 	fixed20_12 sclk, bandwidth;
601 	fixed20_12 a;
602 
603 	a.full = dfixed_const(1000);
604 	sclk.full = dfixed_const(wm->sclk);
605 	sclk.full = dfixed_div(sclk, a);
606 	a.full = dfixed_const(10);
607 	return_efficiency.full = dfixed_const(8);
608 	return_efficiency.full = dfixed_div(return_efficiency, a);
609 	a.full = dfixed_const(32);
610 	bandwidth.full = dfixed_mul(a, sclk);
611 	bandwidth.full = dfixed_mul(bandwidth, return_efficiency);
612 
613 	return dfixed_trunc(bandwidth);
614 }
615 
616 /**
617  * dce_v6_0_dmif_request_bandwidth - get the dmif bandwidth
618  *
619  * @wm: watermark calculation data
620  *
621  * Calculate the dmif bandwidth used for display (CIK).
622  * Used for display watermark bandwidth calculations
623  * Returns the dmif bandwidth in MBytes/s
624  */
625 static u32 dce_v6_0_dmif_request_bandwidth(struct dce6_wm_params *wm)
626 {
627 	/* Calculate the DMIF Request Bandwidth */
628 	fixed20_12 disp_clk_request_efficiency; /* 0.8 */
629 	fixed20_12 disp_clk, bandwidth;
630 	fixed20_12 a, b;
631 
632 	a.full = dfixed_const(1000);
633 	disp_clk.full = dfixed_const(wm->disp_clk);
634 	disp_clk.full = dfixed_div(disp_clk, a);
635 	a.full = dfixed_const(32);
636 	b.full = dfixed_mul(a, disp_clk);
637 
638 	a.full = dfixed_const(10);
639 	disp_clk_request_efficiency.full = dfixed_const(8);
640 	disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a);
641 
642 	bandwidth.full = dfixed_mul(b, disp_clk_request_efficiency);
643 
644 	return dfixed_trunc(bandwidth);
645 }
646 
647 /**
648  * dce_v6_0_available_bandwidth - get the min available bandwidth
649  *
650  * @wm: watermark calculation data
651  *
652  * Calculate the min available bandwidth used for display (CIK).
653  * Used for display watermark bandwidth calculations
654  * Returns the min available bandwidth in MBytes/s
655  */
656 static u32 dce_v6_0_available_bandwidth(struct dce6_wm_params *wm)
657 {
658 	/* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
659 	u32 dram_bandwidth = dce_v6_0_dram_bandwidth(wm);
660 	u32 data_return_bandwidth = dce_v6_0_data_return_bandwidth(wm);
661 	u32 dmif_req_bandwidth = dce_v6_0_dmif_request_bandwidth(wm);
662 
663 	return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
664 }
665 
666 /**
667  * dce_v6_0_average_bandwidth - get the average available bandwidth
668  *
669  * @wm: watermark calculation data
670  *
671  * Calculate the average available bandwidth used for display (CIK).
672  * Used for display watermark bandwidth calculations
673  * Returns the average available bandwidth in MBytes/s
674  */
675 static u32 dce_v6_0_average_bandwidth(struct dce6_wm_params *wm)
676 {
677 	/* Calculate the display mode Average Bandwidth
678 	 * DisplayMode should contain the source and destination dimensions,
679 	 * timing, etc.
680 	 */
681 	fixed20_12 bpp;
682 	fixed20_12 line_time;
683 	fixed20_12 src_width;
684 	fixed20_12 bandwidth;
685 	fixed20_12 a;
686 
687 	a.full = dfixed_const(1000);
688 	line_time.full = dfixed_const(wm->active_time + wm->blank_time);
689 	line_time.full = dfixed_div(line_time, a);
690 	bpp.full = dfixed_const(wm->bytes_per_pixel);
691 	src_width.full = dfixed_const(wm->src_width);
692 	bandwidth.full = dfixed_mul(src_width, bpp);
693 	bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
694 	bandwidth.full = dfixed_div(bandwidth, line_time);
695 
696 	return dfixed_trunc(bandwidth);
697 }
698 
699 /**
700  * dce_v6_0_latency_watermark - get the latency watermark
701  *
702  * @wm: watermark calculation data
703  *
704  * Calculate the latency watermark (CIK).
705  * Used for display watermark bandwidth calculations
706  * Returns the latency watermark in ns
707  */
708 static u32 dce_v6_0_latency_watermark(struct dce6_wm_params *wm)
709 {
710 	/* First calculate the latency in ns */
711 	u32 mc_latency = 2000; /* 2000 ns. */
712 	u32 available_bandwidth = dce_v6_0_available_bandwidth(wm);
713 	u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth;
714 	u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth;
715 	u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */
716 	u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) +
717 		(wm->num_heads * cursor_line_pair_return_time);
718 	u32 latency = mc_latency + other_heads_data_return_time + dc_latency;
719 	u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time;
720 	u32 tmp, dmif_size = 12288;
721 	fixed20_12 a, b, c;
722 
723 	if (wm->num_heads == 0)
724 		return 0;
725 
726 	a.full = dfixed_const(2);
727 	b.full = dfixed_const(1);
728 	if ((wm->vsc.full > a.full) ||
729 	    ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) ||
730 	    (wm->vtaps >= 5) ||
731 	    ((wm->vsc.full >= a.full) && wm->interlaced))
732 		max_src_lines_per_dst_line = 4;
733 	else
734 		max_src_lines_per_dst_line = 2;
735 
736 	a.full = dfixed_const(available_bandwidth);
737 	b.full = dfixed_const(wm->num_heads);
738 	a.full = dfixed_div(a, b);
739 	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
740 	tmp = min(dfixed_trunc(a), tmp);
741 
742 	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
743 
744 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
745 	b.full = dfixed_const(1000);
746 	c.full = dfixed_const(lb_fill_bw);
747 	b.full = dfixed_div(c, b);
748 	a.full = dfixed_div(a, b);
749 	line_fill_time = dfixed_trunc(a);
750 
751 	if (line_fill_time < wm->active_time)
752 		return latency;
753 	else
754 		return latency + (line_fill_time - wm->active_time);
755 
756 }
757 
758 /**
759  * dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display - check
760  * average and available dram bandwidth
761  *
762  * @wm: watermark calculation data
763  *
764  * Check if the display average bandwidth fits in the display
765  * dram bandwidth (CIK).
766  * Used for display watermark bandwidth calculations
767  * Returns true if the display fits, false if not.
768  */
769 static bool dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display(struct dce6_wm_params *wm)
770 {
771 	if (dce_v6_0_average_bandwidth(wm) <=
772 	    (dce_v6_0_dram_bandwidth_for_display(wm) / wm->num_heads))
773 		return true;
774 	else
775 		return false;
776 }
777 
778 /**
779  * dce_v6_0_average_bandwidth_vs_available_bandwidth - check
780  * average and available bandwidth
781  *
782  * @wm: watermark calculation data
783  *
784  * Check if the display average bandwidth fits in the display
785  * available bandwidth (CIK).
786  * Used for display watermark bandwidth calculations
787  * Returns true if the display fits, false if not.
788  */
789 static bool dce_v6_0_average_bandwidth_vs_available_bandwidth(struct dce6_wm_params *wm)
790 {
791 	if (dce_v6_0_average_bandwidth(wm) <=
792 	    (dce_v6_0_available_bandwidth(wm) / wm->num_heads))
793 		return true;
794 	else
795 		return false;
796 }
797 
798 /**
799  * dce_v6_0_check_latency_hiding - check latency hiding
800  *
801  * @wm: watermark calculation data
802  *
803  * Check latency hiding (CIK).
804  * Used for display watermark bandwidth calculations
805  * Returns true if the display fits, false if not.
806  */
807 static bool dce_v6_0_check_latency_hiding(struct dce6_wm_params *wm)
808 {
809 	u32 lb_partitions = wm->lb_size / wm->src_width;
810 	u32 line_time = wm->active_time + wm->blank_time;
811 	u32 latency_tolerant_lines;
812 	u32 latency_hiding;
813 	fixed20_12 a;
814 
815 	a.full = dfixed_const(1);
816 	if (wm->vsc.full > a.full)
817 		latency_tolerant_lines = 1;
818 	else {
819 		if (lb_partitions <= (wm->vtaps + 1))
820 			latency_tolerant_lines = 1;
821 		else
822 			latency_tolerant_lines = 2;
823 	}
824 
825 	latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time);
826 
827 	if (dce_v6_0_latency_watermark(wm) <= latency_hiding)
828 		return true;
829 	else
830 		return false;
831 }
832 
833 /**
834  * dce_v6_0_program_watermarks - program display watermarks
835  *
836  * @adev: amdgpu_device pointer
837  * @amdgpu_crtc: the selected display controller
838  * @lb_size: line buffer size
839  * @num_heads: number of display controllers in use
840  *
841  * Calculate and program the display watermarks for the
842  * selected display controller (CIK).
843  */
844 static void dce_v6_0_program_watermarks(struct amdgpu_device *adev,
845 					struct amdgpu_crtc *amdgpu_crtc,
846 					u32 lb_size, u32 num_heads)
847 {
848 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
849 	struct dce6_wm_params wm_low, wm_high;
850 	u32 dram_channels;
851 	u32 active_time;
852 	u32 line_time = 0;
853 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
854 	u32 priority_a_mark = 0, priority_b_mark = 0;
855 	u32 priority_a_cnt = PRIORITY_OFF;
856 	u32 priority_b_cnt = PRIORITY_OFF;
857 	u32 tmp, arb_control3, lb_vblank_lead_lines = 0;
858 	fixed20_12 a, b, c;
859 
860 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
861 		active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
862 					    (u32)mode->clock);
863 		line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
864 					  (u32)mode->clock);
865 		line_time = min_t(u32, line_time, 65535);
866 		priority_a_cnt = 0;
867 		priority_b_cnt = 0;
868 
869 		dram_channels = si_get_number_of_dram_channels(adev);
870 
871 		/* watermark for high clocks */
872 		if (adev->pm.dpm_enabled) {
873 			wm_high.yclk =
874 				amdgpu_dpm_get_mclk(adev, false) * 10;
875 			wm_high.sclk =
876 				amdgpu_dpm_get_sclk(adev, false) * 10;
877 		} else {
878 			wm_high.yclk = adev->pm.current_mclk * 10;
879 			wm_high.sclk = adev->pm.current_sclk * 10;
880 		}
881 
882 		wm_high.disp_clk = mode->clock;
883 		wm_high.src_width = mode->crtc_hdisplay;
884 		wm_high.active_time = active_time;
885 		wm_high.blank_time = line_time - wm_high.active_time;
886 		wm_high.interlaced = false;
887 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
888 			wm_high.interlaced = true;
889 		wm_high.vsc = amdgpu_crtc->vsc;
890 		wm_high.vtaps = 1;
891 		if (amdgpu_crtc->rmx_type != RMX_OFF)
892 			wm_high.vtaps = 2;
893 		wm_high.bytes_per_pixel = 4; /* XXX: get this from fb config */
894 		wm_high.lb_size = lb_size;
895 		wm_high.dram_channels = dram_channels;
896 		wm_high.num_heads = num_heads;
897 
898 		if (adev->pm.dpm_enabled) {
899 		/* watermark for low clocks */
900 			wm_low.yclk =
901 				amdgpu_dpm_get_mclk(adev, true) * 10;
902 			wm_low.sclk =
903 				amdgpu_dpm_get_sclk(adev, true) * 10;
904 		} else {
905 			wm_low.yclk = adev->pm.current_mclk * 10;
906 			wm_low.sclk = adev->pm.current_sclk * 10;
907 		}
908 
909 		wm_low.disp_clk = mode->clock;
910 		wm_low.src_width = mode->crtc_hdisplay;
911 		wm_low.active_time = active_time;
912 		wm_low.blank_time = line_time - wm_low.active_time;
913 		wm_low.interlaced = false;
914 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
915 			wm_low.interlaced = true;
916 		wm_low.vsc = amdgpu_crtc->vsc;
917 		wm_low.vtaps = 1;
918 		if (amdgpu_crtc->rmx_type != RMX_OFF)
919 			wm_low.vtaps = 2;
920 		wm_low.bytes_per_pixel = 4; /* XXX: get this from fb config */
921 		wm_low.lb_size = lb_size;
922 		wm_low.dram_channels = dram_channels;
923 		wm_low.num_heads = num_heads;
924 
925 		/* set for high clocks */
926 		latency_watermark_a = min_t(u32, dce_v6_0_latency_watermark(&wm_high), 65535);
927 		/* set for low clocks */
928 		latency_watermark_b = min_t(u32, dce_v6_0_latency_watermark(&wm_low), 65535);
929 
930 		/* possibly force display priority to high */
931 		/* should really do this at mode validation time... */
932 		if (!dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display(&wm_high) ||
933 		    !dce_v6_0_average_bandwidth_vs_available_bandwidth(&wm_high) ||
934 		    !dce_v6_0_check_latency_hiding(&wm_high) ||
935 		    (adev->mode_info.disp_priority == 2)) {
936 			DRM_DEBUG_KMS("force priority to high\n");
937 			priority_a_cnt |= PRIORITY_ALWAYS_ON;
938 			priority_b_cnt |= PRIORITY_ALWAYS_ON;
939 		}
940 		if (!dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display(&wm_low) ||
941 		    !dce_v6_0_average_bandwidth_vs_available_bandwidth(&wm_low) ||
942 		    !dce_v6_0_check_latency_hiding(&wm_low) ||
943 		    (adev->mode_info.disp_priority == 2)) {
944 			DRM_DEBUG_KMS("force priority to high\n");
945 			priority_a_cnt |= PRIORITY_ALWAYS_ON;
946 			priority_b_cnt |= PRIORITY_ALWAYS_ON;
947 		}
948 
949 		a.full = dfixed_const(1000);
950 		b.full = dfixed_const(mode->clock);
951 		b.full = dfixed_div(b, a);
952 		c.full = dfixed_const(latency_watermark_a);
953 		c.full = dfixed_mul(c, b);
954 		c.full = dfixed_mul(c, amdgpu_crtc->hsc);
955 		c.full = dfixed_div(c, a);
956 		a.full = dfixed_const(16);
957 		c.full = dfixed_div(c, a);
958 		priority_a_mark = dfixed_trunc(c);
959 		priority_a_cnt |= priority_a_mark & PRIORITY_MARK_MASK;
960 
961 		a.full = dfixed_const(1000);
962 		b.full = dfixed_const(mode->clock);
963 		b.full = dfixed_div(b, a);
964 		c.full = dfixed_const(latency_watermark_b);
965 		c.full = dfixed_mul(c, b);
966 		c.full = dfixed_mul(c, amdgpu_crtc->hsc);
967 		c.full = dfixed_div(c, a);
968 		a.full = dfixed_const(16);
969 		c.full = dfixed_div(c, a);
970 		priority_b_mark = dfixed_trunc(c);
971 		priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;
972 
973 		lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode->crtc_hdisplay);
974 	}
975 
976 	/* select wm A */
977 	arb_control3 = RREG32(mmDPG_PIPE_ARBITRATION_CONTROL3 + amdgpu_crtc->crtc_offset);
978 	tmp = arb_control3;
979 	tmp &= ~LATENCY_WATERMARK_MASK(3);
980 	tmp |= LATENCY_WATERMARK_MASK(1);
981 	WREG32(mmDPG_PIPE_ARBITRATION_CONTROL3 + amdgpu_crtc->crtc_offset, tmp);
982 	WREG32(mmDPG_PIPE_URGENCY_CONTROL + amdgpu_crtc->crtc_offset,
983 	       ((latency_watermark_a << DPG_PIPE_URGENCY_CONTROL__URGENCY_LOW_WATERMARK__SHIFT)  |
984 		(line_time << DPG_PIPE_URGENCY_CONTROL__URGENCY_HIGH_WATERMARK__SHIFT)));
985 	/* select wm B */
986 	tmp = RREG32(mmDPG_PIPE_ARBITRATION_CONTROL3 + amdgpu_crtc->crtc_offset);
987 	tmp &= ~LATENCY_WATERMARK_MASK(3);
988 	tmp |= LATENCY_WATERMARK_MASK(2);
989 	WREG32(mmDPG_PIPE_ARBITRATION_CONTROL3 + amdgpu_crtc->crtc_offset, tmp);
990 	WREG32(mmDPG_PIPE_URGENCY_CONTROL + amdgpu_crtc->crtc_offset,
991 	       ((latency_watermark_b << DPG_PIPE_URGENCY_CONTROL__URGENCY_LOW_WATERMARK__SHIFT) |
992 		(line_time << DPG_PIPE_URGENCY_CONTROL__URGENCY_HIGH_WATERMARK__SHIFT)));
993 	/* restore original selection */
994 	WREG32(mmDPG_PIPE_ARBITRATION_CONTROL3 + amdgpu_crtc->crtc_offset, arb_control3);
995 
996 	/* write the priority marks */
997 	WREG32(mmPRIORITY_A_CNT + amdgpu_crtc->crtc_offset, priority_a_cnt);
998 	WREG32(mmPRIORITY_B_CNT + amdgpu_crtc->crtc_offset, priority_b_cnt);
999 
1000 	/* save values for DPM */
1001 	amdgpu_crtc->line_time = line_time;
1002 	amdgpu_crtc->wm_high = latency_watermark_a;
1003 
1004 	/* Save number of lines the linebuffer leads before the scanout */
1005 	amdgpu_crtc->lb_vblank_lead_lines = lb_vblank_lead_lines;
1006 }
1007 
1008 /* watermark setup */
1009 static u32 dce_v6_0_line_buffer_adjust(struct amdgpu_device *adev,
1010 				   struct amdgpu_crtc *amdgpu_crtc,
1011 				   struct drm_display_mode *mode,
1012 				   struct drm_display_mode *other_mode)
1013 {
1014 	u32 tmp, buffer_alloc, i;
1015 	u32 pipe_offset = amdgpu_crtc->crtc_id * 0x8;
1016 	/*
1017 	 * Line Buffer Setup
1018 	 * There are 3 line buffers, each one shared by 2 display controllers.
1019 	 * mmDC_LB_MEMORY_SPLIT controls how that line buffer is shared between
1020 	 * the display controllers.  The paritioning is done via one of four
1021 	 * preset allocations specified in bits 21:20:
1022 	 *  0 - half lb
1023 	 *  2 - whole lb, other crtc must be disabled
1024 	 */
1025 	/* this can get tricky if we have two large displays on a paired group
1026 	 * of crtcs.  Ideally for multiple large displays we'd assign them to
1027 	 * non-linked crtcs for maximum line buffer allocation.
1028 	 */
1029 	if (amdgpu_crtc->base.enabled && mode) {
1030 		if (other_mode) {
1031 			tmp = 0; /* 1/2 */
1032 			buffer_alloc = 1;
1033 		} else {
1034 			tmp = 2; /* whole */
1035 			buffer_alloc = 2;
1036 		}
1037 	} else {
1038 		tmp = 0;
1039 		buffer_alloc = 0;
1040 	}
1041 
1042 	WREG32(mmDC_LB_MEMORY_SPLIT + amdgpu_crtc->crtc_offset,
1043 	       DC_LB_MEMORY_CONFIG(tmp));
1044 
1045 	WREG32(mmPIPE0_DMIF_BUFFER_CONTROL + pipe_offset,
1046 	       (buffer_alloc << PIPE0_DMIF_BUFFER_CONTROL__DMIF_BUFFERS_ALLOCATED__SHIFT));
1047 	for (i = 0; i < adev->usec_timeout; i++) {
1048 		if (RREG32(mmPIPE0_DMIF_BUFFER_CONTROL + pipe_offset) &
1049 		    PIPE0_DMIF_BUFFER_CONTROL__DMIF_BUFFERS_ALLOCATION_COMPLETED_MASK)
1050 			break;
1051 		udelay(1);
1052 	}
1053 
1054 	if (amdgpu_crtc->base.enabled && mode) {
1055 		switch (tmp) {
1056 		case 0:
1057 		default:
1058 			return 4096 * 2;
1059 		case 2:
1060 			return 8192 * 2;
1061 		}
1062 	}
1063 
1064 	/* controller not enabled, so no lb used */
1065 	return 0;
1066 }
1067 
1068 
1069 /**
1070  * dce_v6_0_bandwidth_update - program display watermarks
1071  *
1072  * @adev: amdgpu_device pointer
1073  *
1074  * Calculate and program the display watermarks and line
1075  * buffer allocation (CIK).
1076  */
1077 static void dce_v6_0_bandwidth_update(struct amdgpu_device *adev)
1078 {
1079 	struct drm_display_mode *mode0 = NULL;
1080 	struct drm_display_mode *mode1 = NULL;
1081 	u32 num_heads = 0, lb_size;
1082 	int i;
1083 
1084 	if (!adev->mode_info.mode_config_initialized)
1085 		return;
1086 
1087 	amdgpu_display_update_priority(adev);
1088 
1089 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
1090 		if (adev->mode_info.crtcs[i]->base.enabled)
1091 			num_heads++;
1092 	}
1093 	for (i = 0; i < adev->mode_info.num_crtc; i += 2) {
1094 		mode0 = &adev->mode_info.crtcs[i]->base.mode;
1095 		mode1 = &adev->mode_info.crtcs[i+1]->base.mode;
1096 		lb_size = dce_v6_0_line_buffer_adjust(adev, adev->mode_info.crtcs[i], mode0, mode1);
1097 		dce_v6_0_program_watermarks(adev, adev->mode_info.crtcs[i], lb_size, num_heads);
1098 		lb_size = dce_v6_0_line_buffer_adjust(adev, adev->mode_info.crtcs[i+1], mode1, mode0);
1099 		dce_v6_0_program_watermarks(adev, adev->mode_info.crtcs[i+1], lb_size, num_heads);
1100 	}
1101 }
1102 
1103 static void dce_v6_0_audio_get_connected_pins(struct amdgpu_device *adev)
1104 {
1105 	int i;
1106 	u32 tmp;
1107 
1108 	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
1109 		tmp = RREG32_AUDIO_ENDPT(adev->mode_info.audio.pin[i].offset,
1110 				ixAZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
1111 		if (REG_GET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT,
1112 					PORT_CONNECTIVITY))
1113 			adev->mode_info.audio.pin[i].connected = false;
1114 		else
1115 			adev->mode_info.audio.pin[i].connected = true;
1116 	}
1117 
1118 }
1119 
1120 static struct amdgpu_audio_pin *dce_v6_0_audio_get_pin(struct amdgpu_device *adev)
1121 {
1122 	int i;
1123 
1124 	dce_v6_0_audio_get_connected_pins(adev);
1125 
1126 	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
1127 		if (adev->mode_info.audio.pin[i].connected)
1128 			return &adev->mode_info.audio.pin[i];
1129 	}
1130 	DRM_ERROR("No connected audio pins found!\n");
1131 	return NULL;
1132 }
1133 
1134 static void dce_v6_0_audio_select_pin(struct drm_encoder *encoder)
1135 {
1136 	struct amdgpu_device *adev = drm_to_adev(encoder->dev);
1137 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1138 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1139 
1140 	if (!dig || !dig->afmt || !dig->afmt->pin)
1141 		return;
1142 
1143 	WREG32(mmAFMT_AUDIO_SRC_CONTROL + dig->afmt->offset,
1144 	       REG_SET_FIELD(0, AFMT_AUDIO_SRC_CONTROL, AFMT_AUDIO_SRC_SELECT,
1145 		             dig->afmt->pin->id));
1146 }
1147 
1148 static void dce_v6_0_audio_write_latency_fields(struct drm_encoder *encoder,
1149 						struct drm_display_mode *mode)
1150 {
1151 	struct drm_device *dev = encoder->dev;
1152 	struct amdgpu_device *adev = drm_to_adev(dev);
1153 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1154 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1155 	struct drm_connector *connector;
1156 	struct drm_connector_list_iter iter;
1157 	struct amdgpu_connector *amdgpu_connector = NULL;
1158 	int interlace = 0;
1159 	u32 tmp;
1160 
1161 	drm_connector_list_iter_begin(dev, &iter);
1162 	drm_for_each_connector_iter(connector, &iter) {
1163 		if (connector->encoder == encoder) {
1164 			amdgpu_connector = to_amdgpu_connector(connector);
1165 			break;
1166 		}
1167 	}
1168 	drm_connector_list_iter_end(&iter);
1169 
1170 	if (!amdgpu_connector) {
1171 		DRM_ERROR("Couldn't find encoder's connector\n");
1172 		return;
1173 	}
1174 
1175 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
1176 		interlace = 1;
1177 
1178 	if (connector->latency_present[interlace]) {
1179 		tmp = REG_SET_FIELD(0, AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
1180 				VIDEO_LIPSYNC, connector->video_latency[interlace]);
1181 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
1182 				AUDIO_LIPSYNC, connector->audio_latency[interlace]);
1183 	} else {
1184 		tmp = REG_SET_FIELD(0, AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
1185 				VIDEO_LIPSYNC, 0);
1186 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
1187 				AUDIO_LIPSYNC, 0);
1188 	}
1189 	WREG32_AUDIO_ENDPT(dig->afmt->pin->offset,
1190 			   ixAZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
1191 }
1192 
1193 static void dce_v6_0_audio_write_speaker_allocation(struct drm_encoder *encoder)
1194 {
1195 	struct drm_device *dev = encoder->dev;
1196 	struct amdgpu_device *adev = drm_to_adev(dev);
1197 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1198 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1199 	struct drm_connector *connector;
1200 	struct drm_connector_list_iter iter;
1201 	struct amdgpu_connector *amdgpu_connector = NULL;
1202 	u8 *sadb = NULL;
1203 	int sad_count;
1204 	u32 tmp;
1205 
1206 	drm_connector_list_iter_begin(dev, &iter);
1207 	drm_for_each_connector_iter(connector, &iter) {
1208 		if (connector->encoder == encoder) {
1209 			amdgpu_connector = to_amdgpu_connector(connector);
1210 			break;
1211 		}
1212 	}
1213 	drm_connector_list_iter_end(&iter);
1214 
1215 	if (!amdgpu_connector) {
1216 		DRM_ERROR("Couldn't find encoder's connector\n");
1217 		return;
1218 	}
1219 
1220 	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, &sadb);
1221 	if (sad_count < 0) {
1222 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
1223 		sad_count = 0;
1224 	}
1225 
1226 	/* program the speaker allocation */
1227 	tmp = RREG32_AUDIO_ENDPT(dig->afmt->pin->offset,
1228 			ixAZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
1229 	tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1230 			HDMI_CONNECTION, 0);
1231 	tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1232 			DP_CONNECTION, 0);
1233 
1234 	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
1235 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1236 				DP_CONNECTION, 1);
1237 	else
1238 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1239 				HDMI_CONNECTION, 1);
1240 
1241 	if (sad_count)
1242 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1243 				SPEAKER_ALLOCATION, sadb[0]);
1244 	else
1245 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
1246 				SPEAKER_ALLOCATION, 5); /* stereo */
1247 
1248 	WREG32_AUDIO_ENDPT(dig->afmt->pin->offset,
1249 			ixAZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
1250 
1251 	kfree(sadb);
1252 }
1253 
1254 static void dce_v6_0_audio_write_sad_regs(struct drm_encoder *encoder)
1255 {
1256 	struct drm_device *dev = encoder->dev;
1257 	struct amdgpu_device *adev = drm_to_adev(dev);
1258 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1259 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1260 	struct drm_connector *connector;
1261 	struct drm_connector_list_iter iter;
1262 	struct amdgpu_connector *amdgpu_connector = NULL;
1263 	struct cea_sad *sads;
1264 	int i, sad_count;
1265 
1266 	static const u16 eld_reg_to_type[][2] = {
1267 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
1268 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
1269 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
1270 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
1271 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
1272 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
1273 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
1274 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
1275 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
1276 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
1277 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
1278 		{ ixAZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
1279 	};
1280 
1281 	drm_connector_list_iter_begin(dev, &iter);
1282 	drm_for_each_connector_iter(connector, &iter) {
1283 		if (connector->encoder == encoder) {
1284 			amdgpu_connector = to_amdgpu_connector(connector);
1285 			break;
1286 		}
1287 	}
1288 	drm_connector_list_iter_end(&iter);
1289 
1290 	if (!amdgpu_connector) {
1291 		DRM_ERROR("Couldn't find encoder's connector\n");
1292 		return;
1293 	}
1294 
1295 	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
1296 	if (sad_count < 0)
1297 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
1298 	if (sad_count <= 0)
1299 		return;
1300 
1301 	for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
1302 		u32 tmp = 0;
1303 		u8 stereo_freqs = 0;
1304 		int max_channels = -1;
1305 		int j;
1306 
1307 		for (j = 0; j < sad_count; j++) {
1308 			struct cea_sad *sad = &sads[j];
1309 
1310 			if (sad->format == eld_reg_to_type[i][1]) {
1311 				if (sad->channels > max_channels) {
1312 					tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
1313 							MAX_CHANNELS, sad->channels);
1314 					tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
1315 							DESCRIPTOR_BYTE_2, sad->byte2);
1316 					tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
1317 							SUPPORTED_FREQUENCIES, sad->freq);
1318 					max_channels = sad->channels;
1319 				}
1320 
1321 				if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
1322 					stereo_freqs |= sad->freq;
1323 				else
1324 					break;
1325 			}
1326 		}
1327 
1328 		tmp = REG_SET_FIELD(tmp, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
1329 				SUPPORTED_FREQUENCIES_STEREO, stereo_freqs);
1330 		WREG32_AUDIO_ENDPT(dig->afmt->pin->offset, eld_reg_to_type[i][0], tmp);
1331 	}
1332 
1333 	kfree(sads);
1334 
1335 }
1336 
1337 static void dce_v6_0_audio_enable(struct amdgpu_device *adev,
1338 				  struct amdgpu_audio_pin *pin,
1339 				  bool enable)
1340 {
1341 	if (!pin)
1342 		return;
1343 
1344 	WREG32_AUDIO_ENDPT(pin->offset, ixAZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
1345 			enable ? AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL__AUDIO_ENABLED_MASK : 0);
1346 }
1347 
1348 static const u32 pin_offsets[7] =
1349 {
1350 	(0x1780 - 0x1780),
1351 	(0x1786 - 0x1780),
1352 	(0x178c - 0x1780),
1353 	(0x1792 - 0x1780),
1354 	(0x1798 - 0x1780),
1355 	(0x179d - 0x1780),
1356 	(0x17a4 - 0x1780),
1357 };
1358 
1359 static int dce_v6_0_audio_init(struct amdgpu_device *adev)
1360 {
1361 	int i;
1362 
1363 	if (!amdgpu_audio)
1364 		return 0;
1365 
1366 	adev->mode_info.audio.enabled = true;
1367 
1368 	switch (adev->asic_type) {
1369 	case CHIP_TAHITI:
1370 	case CHIP_PITCAIRN:
1371 	case CHIP_VERDE:
1372 	default:
1373 		adev->mode_info.audio.num_pins = 6;
1374 		break;
1375 	case CHIP_OLAND:
1376 		adev->mode_info.audio.num_pins = 2;
1377 		break;
1378 	}
1379 
1380 	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
1381 		adev->mode_info.audio.pin[i].channels = -1;
1382 		adev->mode_info.audio.pin[i].rate = -1;
1383 		adev->mode_info.audio.pin[i].bits_per_sample = -1;
1384 		adev->mode_info.audio.pin[i].status_bits = 0;
1385 		adev->mode_info.audio.pin[i].category_code = 0;
1386 		adev->mode_info.audio.pin[i].connected = false;
1387 		adev->mode_info.audio.pin[i].offset = pin_offsets[i];
1388 		adev->mode_info.audio.pin[i].id = i;
1389 		dce_v6_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
1390 	}
1391 
1392 	return 0;
1393 }
1394 
1395 static void dce_v6_0_audio_fini(struct amdgpu_device *adev)
1396 {
1397 	int i;
1398 
1399 	if (!amdgpu_audio)
1400 		return;
1401 
1402 	if (!adev->mode_info.audio.enabled)
1403 		return;
1404 
1405 	for (i = 0; i < adev->mode_info.audio.num_pins; i++)
1406 		dce_v6_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
1407 
1408 	adev->mode_info.audio.enabled = false;
1409 }
1410 
1411 static void dce_v6_0_audio_set_vbi_packet(struct drm_encoder *encoder)
1412 {
1413 	struct drm_device *dev = encoder->dev;
1414 	struct amdgpu_device *adev = drm_to_adev(dev);
1415 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1416 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1417 	u32 tmp;
1418 
1419 	tmp = RREG32(mmHDMI_VBI_PACKET_CONTROL + dig->afmt->offset);
1420 	tmp = REG_SET_FIELD(tmp, HDMI_VBI_PACKET_CONTROL, HDMI_NULL_SEND, 1);
1421 	tmp = REG_SET_FIELD(tmp, HDMI_VBI_PACKET_CONTROL, HDMI_GC_SEND, 1);
1422 	tmp = REG_SET_FIELD(tmp, HDMI_VBI_PACKET_CONTROL, HDMI_GC_CONT, 1);
1423 	WREG32(mmHDMI_VBI_PACKET_CONTROL + dig->afmt->offset, tmp);
1424 }
1425 
1426 static void dce_v6_0_audio_set_acr(struct drm_encoder *encoder,
1427 				   uint32_t clock, int bpc)
1428 {
1429 	struct drm_device *dev = encoder->dev;
1430 	struct amdgpu_device *adev = drm_to_adev(dev);
1431 	struct amdgpu_afmt_acr acr = amdgpu_afmt_acr(clock);
1432 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1433 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1434 	u32 tmp;
1435 
1436 	tmp = RREG32(mmHDMI_ACR_PACKET_CONTROL + dig->afmt->offset);
1437 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_PACKET_CONTROL, HDMI_ACR_AUTO_SEND, 1);
1438 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_PACKET_CONTROL, HDMI_ACR_SOURCE,
1439 			bpc > 8 ? 0 : 1);
1440 	WREG32(mmHDMI_ACR_PACKET_CONTROL + dig->afmt->offset, tmp);
1441 
1442 	tmp = RREG32(mmHDMI_ACR_32_0 + dig->afmt->offset);
1443 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_32_0, HDMI_ACR_CTS_32, acr.cts_32khz);
1444 	WREG32(mmHDMI_ACR_32_0 + dig->afmt->offset, tmp);
1445 	tmp = RREG32(mmHDMI_ACR_32_1 + dig->afmt->offset);
1446 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_32_1, HDMI_ACR_N_32, acr.n_32khz);
1447 	WREG32(mmHDMI_ACR_32_1 + dig->afmt->offset, tmp);
1448 
1449 	tmp = RREG32(mmHDMI_ACR_44_0 + dig->afmt->offset);
1450 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_44_0, HDMI_ACR_CTS_44, acr.cts_44_1khz);
1451 	WREG32(mmHDMI_ACR_44_0 + dig->afmt->offset, tmp);
1452 	tmp = RREG32(mmHDMI_ACR_44_1 + dig->afmt->offset);
1453 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_44_1, HDMI_ACR_N_44, acr.n_44_1khz);
1454 	WREG32(mmHDMI_ACR_44_1 + dig->afmt->offset, tmp);
1455 
1456 	tmp = RREG32(mmHDMI_ACR_48_0 + dig->afmt->offset);
1457 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_48_0, HDMI_ACR_CTS_48, acr.cts_48khz);
1458 	WREG32(mmHDMI_ACR_48_0 + dig->afmt->offset, tmp);
1459 	tmp = RREG32(mmHDMI_ACR_48_1 + dig->afmt->offset);
1460 	tmp = REG_SET_FIELD(tmp, HDMI_ACR_48_1, HDMI_ACR_N_48, acr.n_48khz);
1461 	WREG32(mmHDMI_ACR_48_1 + dig->afmt->offset, tmp);
1462 }
1463 
1464 static void dce_v6_0_audio_set_avi_infoframe(struct drm_encoder *encoder,
1465 					       struct drm_display_mode *mode)
1466 {
1467 	struct drm_device *dev = encoder->dev;
1468 	struct amdgpu_device *adev = drm_to_adev(dev);
1469 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1470 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1471 	struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder);
1472 	struct hdmi_avi_infoframe frame;
1473 	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
1474 	uint8_t *payload = buffer + 3;
1475 	uint8_t *header = buffer;
1476 	ssize_t err;
1477 	u32 tmp;
1478 
1479 	err = drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode);
1480 	if (err < 0) {
1481 		DRM_ERROR("failed to setup AVI infoframe: %zd\n", err);
1482 		return;
1483 	}
1484 
1485 	err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
1486 	if (err < 0) {
1487 		DRM_ERROR("failed to pack AVI infoframe: %zd\n", err);
1488 		return;
1489 	}
1490 
1491 	WREG32(mmAFMT_AVI_INFO0 + dig->afmt->offset,
1492 	       payload[0x0] | (payload[0x1] << 8) | (payload[0x2] << 16) | (payload[0x3] << 24));
1493 	WREG32(mmAFMT_AVI_INFO1 + dig->afmt->offset,
1494 	       payload[0x4] | (payload[0x5] << 8) | (payload[0x6] << 16) | (payload[0x7] << 24));
1495 	WREG32(mmAFMT_AVI_INFO2 + dig->afmt->offset,
1496 	       payload[0x8] | (payload[0x9] << 8) | (payload[0xA] << 16) | (payload[0xB] << 24));
1497 	WREG32(mmAFMT_AVI_INFO3 + dig->afmt->offset,
1498 	       payload[0xC] | (payload[0xD] << 8) | (header[1] << 24));
1499 
1500 	tmp = RREG32(mmHDMI_INFOFRAME_CONTROL1 + dig->afmt->offset);
1501 	/* anything other than 0 */
1502 	tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL1,
1503 			HDMI_AUDIO_INFO_LINE, 2);
1504 	WREG32(mmHDMI_INFOFRAME_CONTROL1 + dig->afmt->offset, tmp);
1505 }
1506 
1507 static void dce_v6_0_audio_set_dto(struct drm_encoder *encoder, u32 clock)
1508 {
1509 	struct drm_device *dev = encoder->dev;
1510 	struct amdgpu_device *adev = drm_to_adev(dev);
1511 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(encoder->crtc);
1512 	int em = amdgpu_atombios_encoder_get_encoder_mode(encoder);
1513 	u32 tmp;
1514 
1515 	/*
1516 	 * Two dtos: generally use dto0 for hdmi, dto1 for dp.
1517 	 * Express [24MHz / target pixel clock] as an exact rational
1518 	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
1519 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
1520 	 */
1521 	tmp = RREG32(mmDCCG_AUDIO_DTO_SOURCE);
1522 	tmp = REG_SET_FIELD(tmp, DCCG_AUDIO_DTO_SOURCE,
1523 			DCCG_AUDIO_DTO0_SOURCE_SEL, amdgpu_crtc->crtc_id);
1524 	if (em == ATOM_ENCODER_MODE_HDMI) {
1525 		tmp = REG_SET_FIELD(tmp, DCCG_AUDIO_DTO_SOURCE,
1526 				DCCG_AUDIO_DTO_SEL, 0);
1527 	} else if (ENCODER_MODE_IS_DP(em)) {
1528 		tmp = REG_SET_FIELD(tmp, DCCG_AUDIO_DTO_SOURCE,
1529 				DCCG_AUDIO_DTO_SEL, 1);
1530 	}
1531 	WREG32(mmDCCG_AUDIO_DTO_SOURCE, tmp);
1532 	if (em == ATOM_ENCODER_MODE_HDMI) {
1533 		WREG32(mmDCCG_AUDIO_DTO0_PHASE, 24000);
1534 		WREG32(mmDCCG_AUDIO_DTO0_MODULE, clock);
1535 	} else if (ENCODER_MODE_IS_DP(em)) {
1536 		WREG32(mmDCCG_AUDIO_DTO1_PHASE, 24000);
1537 		WREG32(mmDCCG_AUDIO_DTO1_MODULE, clock);
1538 	}
1539 }
1540 
1541 static void dce_v6_0_audio_set_packet(struct drm_encoder *encoder)
1542 {
1543 	struct drm_device *dev = encoder->dev;
1544 	struct amdgpu_device *adev = drm_to_adev(dev);
1545 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1546 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1547 	u32 tmp;
1548 
1549 	tmp = RREG32(mmAFMT_INFOFRAME_CONTROL0 + dig->afmt->offset);
1550 	tmp = REG_SET_FIELD(tmp, AFMT_INFOFRAME_CONTROL0, AFMT_AUDIO_INFO_UPDATE, 1);
1551 	WREG32(mmAFMT_INFOFRAME_CONTROL0 + dig->afmt->offset, tmp);
1552 
1553 	tmp = RREG32(mmAFMT_60958_0 + dig->afmt->offset);
1554 	tmp = REG_SET_FIELD(tmp, AFMT_60958_0, AFMT_60958_CS_CHANNEL_NUMBER_L, 1);
1555 	WREG32(mmAFMT_60958_0 + dig->afmt->offset, tmp);
1556 
1557 	tmp = RREG32(mmAFMT_60958_1 + dig->afmt->offset);
1558 	tmp = REG_SET_FIELD(tmp, AFMT_60958_1, AFMT_60958_CS_CHANNEL_NUMBER_R, 2);
1559 	WREG32(mmAFMT_60958_1 + dig->afmt->offset, tmp);
1560 
1561 	tmp = RREG32(mmAFMT_60958_2 + dig->afmt->offset);
1562 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_2, 3);
1563 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_3, 4);
1564 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_4, 5);
1565 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_5, 6);
1566 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_6, 7);
1567 	tmp = REG_SET_FIELD(tmp, AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_7, 8);
1568 	WREG32(mmAFMT_60958_2 + dig->afmt->offset, tmp);
1569 
1570 	tmp = RREG32(mmAFMT_AUDIO_PACKET_CONTROL2 + dig->afmt->offset);
1571 	tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL2, AFMT_AUDIO_CHANNEL_ENABLE, 0xff);
1572 	WREG32(mmAFMT_AUDIO_PACKET_CONTROL2 + dig->afmt->offset, tmp);
1573 
1574 	tmp = RREG32(mmHDMI_AUDIO_PACKET_CONTROL + dig->afmt->offset);
1575 	tmp = REG_SET_FIELD(tmp, HDMI_AUDIO_PACKET_CONTROL, HDMI_AUDIO_DELAY_EN, 1);
1576 	tmp = REG_SET_FIELD(tmp, HDMI_AUDIO_PACKET_CONTROL, HDMI_AUDIO_PACKETS_PER_LINE, 3);
1577 	WREG32(mmHDMI_AUDIO_PACKET_CONTROL + dig->afmt->offset, tmp);
1578 
1579 	tmp = RREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset);
1580 	tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL, AFMT_RESET_FIFO_WHEN_AUDIO_DIS, 1);
1581 	tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL, AFMT_60958_CS_UPDATE, 1);
1582 	WREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, tmp);
1583 }
1584 
1585 static void dce_v6_0_audio_set_mute(struct drm_encoder *encoder, bool mute)
1586 {
1587 	struct drm_device *dev = encoder->dev;
1588 	struct amdgpu_device *adev = drm_to_adev(dev);
1589 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1590 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1591 	u32 tmp;
1592 
1593 	tmp = RREG32(mmHDMI_GC + dig->afmt->offset);
1594 	tmp = REG_SET_FIELD(tmp, HDMI_GC, HDMI_GC_AVMUTE, mute ? 1 : 0);
1595 	WREG32(mmHDMI_GC + dig->afmt->offset, tmp);
1596 }
1597 
1598 static void dce_v6_0_audio_hdmi_enable(struct drm_encoder *encoder, bool enable)
1599 {
1600 	struct drm_device *dev = encoder->dev;
1601 	struct amdgpu_device *adev = drm_to_adev(dev);
1602 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1603 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1604 	u32 tmp;
1605 
1606 	if (enable) {
1607 		tmp = RREG32(mmHDMI_INFOFRAME_CONTROL0 + dig->afmt->offset);
1608 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AVI_INFO_SEND, 1);
1609 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AVI_INFO_CONT, 1);
1610 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AUDIO_INFO_SEND, 1);
1611 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AUDIO_INFO_CONT, 1);
1612 		WREG32(mmHDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, tmp);
1613 
1614 		tmp = RREG32(mmHDMI_INFOFRAME_CONTROL1 + dig->afmt->offset);
1615 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL1, HDMI_AVI_INFO_LINE, 2);
1616 		WREG32(mmHDMI_INFOFRAME_CONTROL1 + dig->afmt->offset, tmp);
1617 
1618 		tmp = RREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset);
1619 		tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL, AFMT_AUDIO_SAMPLE_SEND, 1);
1620 		WREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, tmp);
1621 	} else {
1622 		tmp = RREG32(mmHDMI_INFOFRAME_CONTROL0 + dig->afmt->offset);
1623 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AVI_INFO_SEND, 0);
1624 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AVI_INFO_CONT, 0);
1625 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AUDIO_INFO_SEND, 0);
1626 		tmp = REG_SET_FIELD(tmp, HDMI_INFOFRAME_CONTROL0, HDMI_AUDIO_INFO_CONT, 0);
1627 		WREG32(mmHDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, tmp);
1628 
1629 		tmp = RREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset);
1630 		tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL, AFMT_AUDIO_SAMPLE_SEND, 0);
1631 		WREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, tmp);
1632 	}
1633 }
1634 
1635 static void dce_v6_0_audio_dp_enable(struct drm_encoder *encoder, bool enable)
1636 {
1637 	struct drm_device *dev = encoder->dev;
1638 	struct amdgpu_device *adev = drm_to_adev(dev);
1639 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1640 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1641 	u32 tmp;
1642 
1643 	if (enable) {
1644 		tmp = RREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset);
1645 		tmp = REG_SET_FIELD(tmp, AFMT_AUDIO_PACKET_CONTROL, AFMT_AUDIO_SAMPLE_SEND, 1);
1646 		WREG32(mmAFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, tmp);
1647 
1648 		tmp = RREG32(mmDP_SEC_TIMESTAMP + dig->afmt->offset);
1649 		tmp = REG_SET_FIELD(tmp, DP_SEC_TIMESTAMP, DP_SEC_TIMESTAMP_MODE, 1);
1650 		WREG32(mmDP_SEC_TIMESTAMP + dig->afmt->offset, tmp);
1651 
1652 		tmp = RREG32(mmDP_SEC_CNTL + dig->afmt->offset);
1653 		tmp = REG_SET_FIELD(tmp, DP_SEC_CNTL, DP_SEC_ASP_ENABLE, 1);
1654 		tmp = REG_SET_FIELD(tmp, DP_SEC_CNTL, DP_SEC_ATP_ENABLE, 1);
1655 		tmp = REG_SET_FIELD(tmp, DP_SEC_CNTL, DP_SEC_AIP_ENABLE, 1);
1656 		tmp = REG_SET_FIELD(tmp, DP_SEC_CNTL, DP_SEC_STREAM_ENABLE, 1);
1657 		WREG32(mmDP_SEC_CNTL + dig->afmt->offset, tmp);
1658 	} else {
1659 		WREG32(mmDP_SEC_CNTL + dig->afmt->offset, 0);
1660 	}
1661 }
1662 
1663 static void dce_v6_0_afmt_setmode(struct drm_encoder *encoder,
1664 				  struct drm_display_mode *mode)
1665 {
1666 	struct drm_device *dev = encoder->dev;
1667 	struct amdgpu_device *adev = drm_to_adev(dev);
1668 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1669 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1670 	struct drm_connector *connector;
1671 	struct drm_connector_list_iter iter;
1672 	struct amdgpu_connector *amdgpu_connector = NULL;
1673 	int em = amdgpu_atombios_encoder_get_encoder_mode(encoder);
1674 	int bpc = 8;
1675 
1676 	if (!dig || !dig->afmt)
1677 		return;
1678 
1679 	drm_connector_list_iter_begin(dev, &iter);
1680 	drm_for_each_connector_iter(connector, &iter) {
1681 		if (connector->encoder == encoder) {
1682 			amdgpu_connector = to_amdgpu_connector(connector);
1683 			break;
1684 		}
1685 	}
1686 	drm_connector_list_iter_end(&iter);
1687 
1688 	if (!amdgpu_connector) {
1689 		DRM_ERROR("Couldn't find encoder's connector\n");
1690 		return;
1691 	}
1692 
1693 	if (!dig->afmt->enabled)
1694 		return;
1695 
1696 	dig->afmt->pin = dce_v6_0_audio_get_pin(adev);
1697 	if (!dig->afmt->pin)
1698 		return;
1699 
1700 	if (encoder->crtc) {
1701 		struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(encoder->crtc);
1702 		bpc = amdgpu_crtc->bpc;
1703 	}
1704 
1705 	/* disable audio before setting up hw */
1706 	dce_v6_0_audio_enable(adev, dig->afmt->pin, false);
1707 
1708 	dce_v6_0_audio_set_mute(encoder, true);
1709 	dce_v6_0_audio_write_speaker_allocation(encoder);
1710 	dce_v6_0_audio_write_sad_regs(encoder);
1711 	dce_v6_0_audio_write_latency_fields(encoder, mode);
1712 	if (em == ATOM_ENCODER_MODE_HDMI) {
1713 		dce_v6_0_audio_set_dto(encoder, mode->clock);
1714 		dce_v6_0_audio_set_vbi_packet(encoder);
1715 		dce_v6_0_audio_set_acr(encoder, mode->clock, bpc);
1716 	} else if (ENCODER_MODE_IS_DP(em)) {
1717 		dce_v6_0_audio_set_dto(encoder, adev->clock.default_dispclk * 10);
1718 	}
1719 	dce_v6_0_audio_set_packet(encoder);
1720 	dce_v6_0_audio_select_pin(encoder);
1721 	dce_v6_0_audio_set_avi_infoframe(encoder, mode);
1722 	dce_v6_0_audio_set_mute(encoder, false);
1723 	if (em == ATOM_ENCODER_MODE_HDMI) {
1724 		dce_v6_0_audio_hdmi_enable(encoder, 1);
1725 	} else if (ENCODER_MODE_IS_DP(em)) {
1726 		dce_v6_0_audio_dp_enable(encoder, 1);
1727 	}
1728 
1729 	/* enable audio after setting up hw */
1730 	dce_v6_0_audio_enable(adev, dig->afmt->pin, true);
1731 }
1732 
1733 static void dce_v6_0_afmt_enable(struct drm_encoder *encoder, bool enable)
1734 {
1735 	struct drm_device *dev = encoder->dev;
1736 	struct amdgpu_device *adev = drm_to_adev(dev);
1737 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1738 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
1739 
1740 	if (!dig || !dig->afmt)
1741 		return;
1742 
1743 	/* Silent, r600_hdmi_enable will raise WARN for us */
1744 	if (enable && dig->afmt->enabled)
1745 		return;
1746 
1747 	if (!enable && !dig->afmt->enabled)
1748 		return;
1749 
1750 	if (!enable && dig->afmt->pin) {
1751 		dce_v6_0_audio_enable(adev, dig->afmt->pin, false);
1752 		dig->afmt->pin = NULL;
1753 	}
1754 
1755 	dig->afmt->enabled = enable;
1756 
1757 	DRM_DEBUG("%sabling AFMT interface @ 0x%04X for encoder 0x%x\n",
1758 		  enable ? "En" : "Dis", dig->afmt->offset, amdgpu_encoder->encoder_id);
1759 }
1760 
1761 static int dce_v6_0_afmt_init(struct amdgpu_device *adev)
1762 {
1763 	int i, j;
1764 
1765 	for (i = 0; i < adev->mode_info.num_dig; i++)
1766 		adev->mode_info.afmt[i] = NULL;
1767 
1768 	/* DCE6 has audio blocks tied to DIG encoders */
1769 	for (i = 0; i < adev->mode_info.num_dig; i++) {
1770 		adev->mode_info.afmt[i] = kzalloc(sizeof(struct amdgpu_afmt), GFP_KERNEL);
1771 		if (adev->mode_info.afmt[i]) {
1772 			adev->mode_info.afmt[i]->offset = dig_offsets[i];
1773 			adev->mode_info.afmt[i]->id = i;
1774 		} else {
1775 			for (j = 0; j < i; j++) {
1776 				kfree(adev->mode_info.afmt[j]);
1777 				adev->mode_info.afmt[j] = NULL;
1778 			}
1779 			DRM_ERROR("Out of memory allocating afmt table\n");
1780 			return -ENOMEM;
1781 		}
1782 	}
1783 	return 0;
1784 }
1785 
1786 static void dce_v6_0_afmt_fini(struct amdgpu_device *adev)
1787 {
1788 	int i;
1789 
1790 	for (i = 0; i < adev->mode_info.num_dig; i++) {
1791 		kfree(adev->mode_info.afmt[i]);
1792 		adev->mode_info.afmt[i] = NULL;
1793 	}
1794 }
1795 
1796 static const u32 vga_control_regs[6] =
1797 {
1798 	mmD1VGA_CONTROL,
1799 	mmD2VGA_CONTROL,
1800 	mmD3VGA_CONTROL,
1801 	mmD4VGA_CONTROL,
1802 	mmD5VGA_CONTROL,
1803 	mmD6VGA_CONTROL,
1804 };
1805 
1806 static void dce_v6_0_vga_enable(struct drm_crtc *crtc, bool enable)
1807 {
1808 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
1809 	struct drm_device *dev = crtc->dev;
1810 	struct amdgpu_device *adev = drm_to_adev(dev);
1811 	u32 vga_control;
1812 
1813 	vga_control = RREG32(vga_control_regs[amdgpu_crtc->crtc_id]) & ~1;
1814 	WREG32(vga_control_regs[amdgpu_crtc->crtc_id], vga_control | (enable ? 1 : 0));
1815 }
1816 
1817 static void dce_v6_0_grph_enable(struct drm_crtc *crtc, bool enable)
1818 {
1819 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
1820 	struct drm_device *dev = crtc->dev;
1821 	struct amdgpu_device *adev = drm_to_adev(dev);
1822 
1823 	WREG32(mmGRPH_ENABLE + amdgpu_crtc->crtc_offset, enable ? 1 : 0);
1824 }
1825 
1826 static int dce_v6_0_crtc_do_set_base(struct drm_crtc *crtc,
1827 				     struct drm_framebuffer *fb,
1828 				     int x, int y, int atomic)
1829 {
1830 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
1831 	struct drm_device *dev = crtc->dev;
1832 	struct amdgpu_device *adev = drm_to_adev(dev);
1833 	struct drm_framebuffer *target_fb;
1834 	struct drm_gem_object *obj;
1835 	struct amdgpu_bo *abo;
1836 	uint64_t fb_location, tiling_flags;
1837 	uint32_t fb_format, fb_pitch_pixels, pipe_config;
1838 	u32 fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_NONE);
1839 	u32 viewport_w, viewport_h;
1840 	int r;
1841 	bool bypass_lut = false;
1842 
1843 	/* no fb bound */
1844 	if (!atomic && !crtc->primary->fb) {
1845 		DRM_DEBUG_KMS("No FB bound\n");
1846 		return 0;
1847 	}
1848 
1849 	if (atomic)
1850 		target_fb = fb;
1851 	else
1852 		target_fb = crtc->primary->fb;
1853 
1854 	/* If atomic, assume fb object is pinned & idle & fenced and
1855 	 * just update base pointers
1856 	 */
1857 	obj = target_fb->obj[0];
1858 	abo = gem_to_amdgpu_bo(obj);
1859 	r = amdgpu_bo_reserve(abo, false);
1860 	if (unlikely(r != 0))
1861 		return r;
1862 
1863 	if (!atomic) {
1864 		r = amdgpu_bo_pin(abo, AMDGPU_GEM_DOMAIN_VRAM);
1865 		if (unlikely(r != 0)) {
1866 			amdgpu_bo_unreserve(abo);
1867 			return -EINVAL;
1868 		}
1869 	}
1870 	fb_location = amdgpu_bo_gpu_offset(abo);
1871 
1872 	amdgpu_bo_get_tiling_flags(abo, &tiling_flags);
1873 	amdgpu_bo_unreserve(abo);
1874 
1875 	switch (target_fb->format->format) {
1876 	case DRM_FORMAT_C8:
1877 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_8BPP) |
1878 			     GRPH_FORMAT(GRPH_FORMAT_INDEXED));
1879 		break;
1880 	case DRM_FORMAT_XRGB4444:
1881 	case DRM_FORMAT_ARGB4444:
1882 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_16BPP) |
1883 			     GRPH_FORMAT(GRPH_FORMAT_ARGB4444));
1884 #ifdef __BIG_ENDIAN
1885 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN16);
1886 #endif
1887 		break;
1888 	case DRM_FORMAT_XRGB1555:
1889 	case DRM_FORMAT_ARGB1555:
1890 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_16BPP) |
1891 			     GRPH_FORMAT(GRPH_FORMAT_ARGB1555));
1892 #ifdef __BIG_ENDIAN
1893 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN16);
1894 #endif
1895 		break;
1896 	case DRM_FORMAT_BGRX5551:
1897 	case DRM_FORMAT_BGRA5551:
1898 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_16BPP) |
1899 			     GRPH_FORMAT(GRPH_FORMAT_BGRA5551));
1900 #ifdef __BIG_ENDIAN
1901 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN16);
1902 #endif
1903 		break;
1904 	case DRM_FORMAT_RGB565:
1905 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_16BPP) |
1906 			     GRPH_FORMAT(GRPH_FORMAT_ARGB565));
1907 #ifdef __BIG_ENDIAN
1908 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN16);
1909 #endif
1910 		break;
1911 	case DRM_FORMAT_XRGB8888:
1912 	case DRM_FORMAT_ARGB8888:
1913 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_32BPP) |
1914 			     GRPH_FORMAT(GRPH_FORMAT_ARGB8888));
1915 #ifdef __BIG_ENDIAN
1916 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN32);
1917 #endif
1918 		break;
1919 	case DRM_FORMAT_XRGB2101010:
1920 	case DRM_FORMAT_ARGB2101010:
1921 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_32BPP) |
1922 			     GRPH_FORMAT(GRPH_FORMAT_ARGB2101010));
1923 #ifdef __BIG_ENDIAN
1924 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN32);
1925 #endif
1926 		/* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1927 		bypass_lut = true;
1928 		break;
1929 	case DRM_FORMAT_BGRX1010102:
1930 	case DRM_FORMAT_BGRA1010102:
1931 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_32BPP) |
1932 			     GRPH_FORMAT(GRPH_FORMAT_BGRA1010102));
1933 #ifdef __BIG_ENDIAN
1934 		fb_swap = GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN32);
1935 #endif
1936 		/* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1937 		bypass_lut = true;
1938 		break;
1939 	case DRM_FORMAT_XBGR8888:
1940 	case DRM_FORMAT_ABGR8888:
1941 		fb_format = (GRPH_DEPTH(GRPH_DEPTH_32BPP) |
1942 			     GRPH_FORMAT(GRPH_FORMAT_ARGB8888));
1943 		fb_swap = (GRPH_RED_CROSSBAR(GRPH_RED_SEL_B) |
1944 			   GRPH_BLUE_CROSSBAR(GRPH_BLUE_SEL_R));
1945 #ifdef __BIG_ENDIAN
1946 		fb_swap |= GRPH_ENDIAN_SWAP(GRPH_ENDIAN_8IN32);
1947 #endif
1948 		break;
1949 	default:
1950 		DRM_ERROR("Unsupported screen format %p4cc\n",
1951 			  &target_fb->format->format);
1952 		return -EINVAL;
1953 	}
1954 
1955 	if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == ARRAY_2D_TILED_THIN1) {
1956 		unsigned bankw, bankh, mtaspect, tile_split, num_banks;
1957 
1958 		bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH);
1959 		bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT);
1960 		mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT);
1961 		tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT);
1962 		num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS);
1963 
1964 		fb_format |= GRPH_NUM_BANKS(num_banks);
1965 		fb_format |= GRPH_ARRAY_MODE(GRPH_ARRAY_2D_TILED_THIN1);
1966 		fb_format |= GRPH_TILE_SPLIT(tile_split);
1967 		fb_format |= GRPH_BANK_WIDTH(bankw);
1968 		fb_format |= GRPH_BANK_HEIGHT(bankh);
1969 		fb_format |= GRPH_MACRO_TILE_ASPECT(mtaspect);
1970 	} else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == ARRAY_1D_TILED_THIN1) {
1971 		fb_format |= GRPH_ARRAY_MODE(GRPH_ARRAY_1D_TILED_THIN1);
1972 	}
1973 
1974 	pipe_config = AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG);
1975 	fb_format |= GRPH_PIPE_CONFIG(pipe_config);
1976 
1977 	dce_v6_0_vga_enable(crtc, false);
1978 
1979 	/* Make sure surface address is updated at vertical blank rather than
1980 	 * horizontal blank
1981 	 */
1982 	WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, 0);
1983 
1984 	WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,
1985 	       upper_32_bits(fb_location));
1986 	WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,
1987 	       upper_32_bits(fb_location));
1988 	WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset,
1989 	       (u32)fb_location & GRPH_PRIMARY_SURFACE_ADDRESS__GRPH_PRIMARY_SURFACE_ADDRESS_MASK);
1990 	WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset,
1991 	       (u32) fb_location & GRPH_PRIMARY_SURFACE_ADDRESS__GRPH_PRIMARY_SURFACE_ADDRESS_MASK);
1992 	WREG32(mmGRPH_CONTROL + amdgpu_crtc->crtc_offset, fb_format);
1993 	WREG32(mmGRPH_SWAP_CNTL + amdgpu_crtc->crtc_offset, fb_swap);
1994 
1995 	/*
1996 	 * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
1997 	 * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
1998 	 * retain the full precision throughout the pipeline.
1999 	 */
2000 	WREG32_P(mmGRPH_LUT_10BIT_BYPASS + amdgpu_crtc->crtc_offset,
2001 		 (bypass_lut ? GRPH_LUT_10BIT_BYPASS__GRPH_LUT_10BIT_BYPASS_EN_MASK : 0),
2002 		 ~GRPH_LUT_10BIT_BYPASS__GRPH_LUT_10BIT_BYPASS_EN_MASK);
2003 
2004 	if (bypass_lut)
2005 		DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
2006 
2007 	WREG32(mmGRPH_SURFACE_OFFSET_X + amdgpu_crtc->crtc_offset, 0);
2008 	WREG32(mmGRPH_SURFACE_OFFSET_Y + amdgpu_crtc->crtc_offset, 0);
2009 	WREG32(mmGRPH_X_START + amdgpu_crtc->crtc_offset, 0);
2010 	WREG32(mmGRPH_Y_START + amdgpu_crtc->crtc_offset, 0);
2011 	WREG32(mmGRPH_X_END + amdgpu_crtc->crtc_offset, target_fb->width);
2012 	WREG32(mmGRPH_Y_END + amdgpu_crtc->crtc_offset, target_fb->height);
2013 
2014 	fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
2015 	WREG32(mmGRPH_PITCH + amdgpu_crtc->crtc_offset, fb_pitch_pixels);
2016 
2017 	dce_v6_0_grph_enable(crtc, true);
2018 
2019 	WREG32(mmDESKTOP_HEIGHT + amdgpu_crtc->crtc_offset,
2020 		       target_fb->height);
2021 	x &= ~3;
2022 	y &= ~1;
2023 	WREG32(mmVIEWPORT_START + amdgpu_crtc->crtc_offset,
2024 	       (x << 16) | y);
2025 	viewport_w = crtc->mode.hdisplay;
2026 	viewport_h = (crtc->mode.vdisplay + 1) & ~1;
2027 
2028 	WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset,
2029 	       (viewport_w << 16) | viewport_h);
2030 
2031 	/* set pageflip to happen anywhere in vblank interval */
2032 	WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 0);
2033 
2034 	if (!atomic && fb && fb != crtc->primary->fb) {
2035 		abo = gem_to_amdgpu_bo(fb->obj[0]);
2036 		r = amdgpu_bo_reserve(abo, true);
2037 		if (unlikely(r != 0))
2038 			return r;
2039 		amdgpu_bo_unpin(abo);
2040 		amdgpu_bo_unreserve(abo);
2041 	}
2042 
2043 	/* Bytes per pixel may have changed */
2044 	dce_v6_0_bandwidth_update(adev);
2045 
2046 	return 0;
2047 
2048 }
2049 
2050 static void dce_v6_0_set_interleave(struct drm_crtc *crtc,
2051 				    struct drm_display_mode *mode)
2052 {
2053 	struct drm_device *dev = crtc->dev;
2054 	struct amdgpu_device *adev = drm_to_adev(dev);
2055 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2056 
2057 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
2058 		WREG32(mmDATA_FORMAT + amdgpu_crtc->crtc_offset,
2059 		       INTERLEAVE_EN);
2060 	else
2061 		WREG32(mmDATA_FORMAT + amdgpu_crtc->crtc_offset, 0);
2062 }
2063 
2064 static void dce_v6_0_crtc_load_lut(struct drm_crtc *crtc)
2065 {
2066 
2067 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2068 	struct drm_device *dev = crtc->dev;
2069 	struct amdgpu_device *adev = drm_to_adev(dev);
2070 	u16 *r, *g, *b;
2071 	int i;
2072 
2073 	DRM_DEBUG_KMS("%d\n", amdgpu_crtc->crtc_id);
2074 
2075 	WREG32(mmINPUT_CSC_CONTROL + amdgpu_crtc->crtc_offset,
2076 	       ((0 << INPUT_CSC_CONTROL__INPUT_CSC_GRPH_MODE__SHIFT) |
2077 		(0 << INPUT_CSC_CONTROL__INPUT_CSC_OVL_MODE__SHIFT)));
2078 	WREG32(mmPRESCALE_GRPH_CONTROL + amdgpu_crtc->crtc_offset,
2079 	       PRESCALE_GRPH_CONTROL__GRPH_PRESCALE_BYPASS_MASK);
2080 	WREG32(mmPRESCALE_OVL_CONTROL + amdgpu_crtc->crtc_offset,
2081 	       PRESCALE_OVL_CONTROL__OVL_PRESCALE_BYPASS_MASK);
2082 	WREG32(mmINPUT_GAMMA_CONTROL + amdgpu_crtc->crtc_offset,
2083 	       ((0 << INPUT_GAMMA_CONTROL__GRPH_INPUT_GAMMA_MODE__SHIFT) |
2084 		(0 << INPUT_GAMMA_CONTROL__OVL_INPUT_GAMMA_MODE__SHIFT)));
2085 
2086 	WREG32(mmDC_LUT_CONTROL + amdgpu_crtc->crtc_offset, 0);
2087 
2088 	WREG32(mmDC_LUT_BLACK_OFFSET_BLUE + amdgpu_crtc->crtc_offset, 0);
2089 	WREG32(mmDC_LUT_BLACK_OFFSET_GREEN + amdgpu_crtc->crtc_offset, 0);
2090 	WREG32(mmDC_LUT_BLACK_OFFSET_RED + amdgpu_crtc->crtc_offset, 0);
2091 
2092 	WREG32(mmDC_LUT_WHITE_OFFSET_BLUE + amdgpu_crtc->crtc_offset, 0xffff);
2093 	WREG32(mmDC_LUT_WHITE_OFFSET_GREEN + amdgpu_crtc->crtc_offset, 0xffff);
2094 	WREG32(mmDC_LUT_WHITE_OFFSET_RED + amdgpu_crtc->crtc_offset, 0xffff);
2095 
2096 	WREG32(mmDC_LUT_RW_MODE + amdgpu_crtc->crtc_offset, 0);
2097 	WREG32(mmDC_LUT_WRITE_EN_MASK + amdgpu_crtc->crtc_offset, 0x00000007);
2098 
2099 	WREG32(mmDC_LUT_RW_INDEX + amdgpu_crtc->crtc_offset, 0);
2100 	r = crtc->gamma_store;
2101 	g = r + crtc->gamma_size;
2102 	b = g + crtc->gamma_size;
2103 	for (i = 0; i < 256; i++) {
2104 		WREG32(mmDC_LUT_30_COLOR + amdgpu_crtc->crtc_offset,
2105 		       ((*r++ & 0xffc0) << 14) |
2106 		       ((*g++ & 0xffc0) << 4) |
2107 		       (*b++ >> 6));
2108 	}
2109 
2110 	WREG32(mmDEGAMMA_CONTROL + amdgpu_crtc->crtc_offset,
2111 	       ((0 << DEGAMMA_CONTROL__GRPH_DEGAMMA_MODE__SHIFT) |
2112 		(0 << DEGAMMA_CONTROL__OVL_DEGAMMA_MODE__SHIFT) |
2113 		ICON_DEGAMMA_MODE(0) |
2114 		(0 << DEGAMMA_CONTROL__CURSOR_DEGAMMA_MODE__SHIFT)));
2115 	WREG32(mmGAMUT_REMAP_CONTROL + amdgpu_crtc->crtc_offset,
2116 	       ((0 << GAMUT_REMAP_CONTROL__GRPH_GAMUT_REMAP_MODE__SHIFT) |
2117 		(0 << GAMUT_REMAP_CONTROL__OVL_GAMUT_REMAP_MODE__SHIFT)));
2118 	WREG32(mmREGAMMA_CONTROL + amdgpu_crtc->crtc_offset,
2119 	       ((0 << REGAMMA_CONTROL__GRPH_REGAMMA_MODE__SHIFT) |
2120 		(0 << REGAMMA_CONTROL__OVL_REGAMMA_MODE__SHIFT)));
2121 	WREG32(mmOUTPUT_CSC_CONTROL + amdgpu_crtc->crtc_offset,
2122 	       ((0 << OUTPUT_CSC_CONTROL__OUTPUT_CSC_GRPH_MODE__SHIFT) |
2123 		(0 << OUTPUT_CSC_CONTROL__OUTPUT_CSC_OVL_MODE__SHIFT)));
2124 	/* XXX match this to the depth of the crtc fmt block, move to modeset? */
2125 	WREG32(0x1a50 + amdgpu_crtc->crtc_offset, 0);
2126 
2127 
2128 }
2129 
2130 static int dce_v6_0_pick_dig_encoder(struct drm_encoder *encoder)
2131 {
2132 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
2133 	struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
2134 
2135 	switch (amdgpu_encoder->encoder_id) {
2136 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
2137 		return dig->linkb ? 1 : 0;
2138 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
2139 		return dig->linkb ? 3 : 2;
2140 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
2141 		return dig->linkb ? 5 : 4;
2142 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
2143 		return 6;
2144 	default:
2145 		DRM_ERROR("invalid encoder_id: 0x%x\n", amdgpu_encoder->encoder_id);
2146 		return 0;
2147 	}
2148 }
2149 
2150 /**
2151  * dce_v6_0_pick_pll - Allocate a PPLL for use by the crtc.
2152  *
2153  * @crtc: drm crtc
2154  *
2155  * Returns the PPLL (Pixel PLL) to be used by the crtc.  For DP monitors
2156  * a single PPLL can be used for all DP crtcs/encoders.  For non-DP
2157  * monitors a dedicated PPLL must be used.  If a particular board has
2158  * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
2159  * as there is no need to program the PLL itself.  If we are not able to
2160  * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
2161  * avoid messing up an existing monitor.
2162  *
2163  *
2164  */
2165 static u32 dce_v6_0_pick_pll(struct drm_crtc *crtc)
2166 {
2167 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2168 	struct drm_device *dev = crtc->dev;
2169 	struct amdgpu_device *adev = drm_to_adev(dev);
2170 	u32 pll_in_use;
2171 	int pll;
2172 
2173 	if (ENCODER_MODE_IS_DP(amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder))) {
2174 		if (adev->clock.dp_extclk)
2175 			/* skip PPLL programming if using ext clock */
2176 			return ATOM_PPLL_INVALID;
2177 		else
2178 			return ATOM_PPLL0;
2179 	} else {
2180 		/* use the same PPLL for all monitors with the same clock */
2181 		pll = amdgpu_pll_get_shared_nondp_ppll(crtc);
2182 		if (pll != ATOM_PPLL_INVALID)
2183 			return pll;
2184 	}
2185 
2186 	/*  PPLL1, and PPLL2 */
2187 	pll_in_use = amdgpu_pll_get_use_mask(crtc);
2188 	if (!(pll_in_use & (1 << ATOM_PPLL2)))
2189 		return ATOM_PPLL2;
2190 	if (!(pll_in_use & (1 << ATOM_PPLL1)))
2191 		return ATOM_PPLL1;
2192 	DRM_ERROR("unable to allocate a PPLL\n");
2193 	return ATOM_PPLL_INVALID;
2194 }
2195 
2196 static void dce_v6_0_lock_cursor(struct drm_crtc *crtc, bool lock)
2197 {
2198 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
2199 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2200 	uint32_t cur_lock;
2201 
2202 	cur_lock = RREG32(mmCUR_UPDATE + amdgpu_crtc->crtc_offset);
2203 	if (lock)
2204 		cur_lock |= CUR_UPDATE__CURSOR_UPDATE_LOCK_MASK;
2205 	else
2206 		cur_lock &= ~CUR_UPDATE__CURSOR_UPDATE_LOCK_MASK;
2207 	WREG32(mmCUR_UPDATE + amdgpu_crtc->crtc_offset, cur_lock);
2208 }
2209 
2210 static void dce_v6_0_hide_cursor(struct drm_crtc *crtc)
2211 {
2212 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2213 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
2214 
2215 	WREG32(mmCUR_CONTROL + amdgpu_crtc->crtc_offset,
2216 	       (CURSOR_24_8_PRE_MULT << CUR_CONTROL__CURSOR_MODE__SHIFT) |
2217 	       (CURSOR_URGENT_1_2 << CUR_CONTROL__CURSOR_URGENT_CONTROL__SHIFT));
2218 
2219 
2220 }
2221 
2222 static void dce_v6_0_show_cursor(struct drm_crtc *crtc)
2223 {
2224 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2225 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
2226 
2227 	WREG32(mmCUR_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset,
2228 	       upper_32_bits(amdgpu_crtc->cursor_addr));
2229 	WREG32(mmCUR_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset,
2230 	       lower_32_bits(amdgpu_crtc->cursor_addr));
2231 
2232 	WREG32(mmCUR_CONTROL + amdgpu_crtc->crtc_offset,
2233 	       CUR_CONTROL__CURSOR_EN_MASK |
2234 	       (CURSOR_24_8_PRE_MULT << CUR_CONTROL__CURSOR_MODE__SHIFT) |
2235 	       (CURSOR_URGENT_1_2 << CUR_CONTROL__CURSOR_URGENT_CONTROL__SHIFT));
2236 
2237 }
2238 
2239 static int dce_v6_0_cursor_move_locked(struct drm_crtc *crtc,
2240 				       int x, int y)
2241 {
2242 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2243 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
2244 	int xorigin = 0, yorigin = 0;
2245 
2246 	int w = amdgpu_crtc->cursor_width;
2247 
2248 	amdgpu_crtc->cursor_x = x;
2249 	amdgpu_crtc->cursor_y = y;
2250 
2251 	/* avivo cursor are offset into the total surface */
2252 	x += crtc->x;
2253 	y += crtc->y;
2254 	DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
2255 
2256 	if (x < 0) {
2257 		xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1);
2258 		x = 0;
2259 	}
2260 	if (y < 0) {
2261 		yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1);
2262 		y = 0;
2263 	}
2264 
2265 	WREG32(mmCUR_POSITION + amdgpu_crtc->crtc_offset, (x << 16) | y);
2266 	WREG32(mmCUR_HOT_SPOT + amdgpu_crtc->crtc_offset, (xorigin << 16) | yorigin);
2267 	WREG32(mmCUR_SIZE + amdgpu_crtc->crtc_offset,
2268 	       ((w - 1) << 16) | (amdgpu_crtc->cursor_height - 1));
2269 
2270 	return 0;
2271 }
2272 
2273 static int dce_v6_0_crtc_cursor_move(struct drm_crtc *crtc,
2274 				     int x, int y)
2275 {
2276 	int ret;
2277 
2278 	dce_v6_0_lock_cursor(crtc, true);
2279 	ret = dce_v6_0_cursor_move_locked(crtc, x, y);
2280 	dce_v6_0_lock_cursor(crtc, false);
2281 
2282 	return ret;
2283 }
2284 
2285 static int dce_v6_0_crtc_cursor_set2(struct drm_crtc *crtc,
2286 				     struct drm_file *file_priv,
2287 				     uint32_t handle,
2288 				     uint32_t width,
2289 				     uint32_t height,
2290 				     int32_t hot_x,
2291 				     int32_t hot_y)
2292 {
2293 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2294 	struct drm_gem_object *obj;
2295 	struct amdgpu_bo *aobj;
2296 	int ret;
2297 
2298 	if (!handle) {
2299 		/* turn off cursor */
2300 		dce_v6_0_hide_cursor(crtc);
2301 		obj = NULL;
2302 		goto unpin;
2303 	}
2304 
2305 	if ((width > amdgpu_crtc->max_cursor_width) ||
2306 	    (height > amdgpu_crtc->max_cursor_height)) {
2307 		DRM_ERROR("bad cursor width or height %d x %d\n", width, height);
2308 		return -EINVAL;
2309 	}
2310 
2311 	obj = drm_gem_object_lookup(file_priv, handle);
2312 	if (!obj) {
2313 		DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, amdgpu_crtc->crtc_id);
2314 		return -ENOENT;
2315 	}
2316 
2317 	aobj = gem_to_amdgpu_bo(obj);
2318 	ret = amdgpu_bo_reserve(aobj, false);
2319 	if (ret != 0) {
2320 		drm_gem_object_put(obj);
2321 		return ret;
2322 	}
2323 
2324 	ret = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM);
2325 	amdgpu_bo_unreserve(aobj);
2326 	if (ret) {
2327 		DRM_ERROR("Failed to pin new cursor BO (%d)\n", ret);
2328 		drm_gem_object_put(obj);
2329 		return ret;
2330 	}
2331 	amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj);
2332 
2333 	dce_v6_0_lock_cursor(crtc, true);
2334 
2335 	if (width != amdgpu_crtc->cursor_width ||
2336 	    height != amdgpu_crtc->cursor_height ||
2337 	    hot_x != amdgpu_crtc->cursor_hot_x ||
2338 	    hot_y != amdgpu_crtc->cursor_hot_y) {
2339 		int x, y;
2340 
2341 		x = amdgpu_crtc->cursor_x + amdgpu_crtc->cursor_hot_x - hot_x;
2342 		y = amdgpu_crtc->cursor_y + amdgpu_crtc->cursor_hot_y - hot_y;
2343 
2344 		dce_v6_0_cursor_move_locked(crtc, x, y);
2345 
2346 		amdgpu_crtc->cursor_width = width;
2347 		amdgpu_crtc->cursor_height = height;
2348 		amdgpu_crtc->cursor_hot_x = hot_x;
2349 		amdgpu_crtc->cursor_hot_y = hot_y;
2350 	}
2351 
2352 	dce_v6_0_show_cursor(crtc);
2353 	dce_v6_0_lock_cursor(crtc, false);
2354 
2355 unpin:
2356 	if (amdgpu_crtc->cursor_bo) {
2357 		struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
2358 		ret = amdgpu_bo_reserve(aobj, true);
2359 		if (likely(ret == 0)) {
2360 			amdgpu_bo_unpin(aobj);
2361 			amdgpu_bo_unreserve(aobj);
2362 		}
2363 		drm_gem_object_put(amdgpu_crtc->cursor_bo);
2364 	}
2365 
2366 	amdgpu_crtc->cursor_bo = obj;
2367 	return 0;
2368 }
2369 
2370 static void dce_v6_0_cursor_reset(struct drm_crtc *crtc)
2371 {
2372 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2373 
2374 	if (amdgpu_crtc->cursor_bo) {
2375 		dce_v6_0_lock_cursor(crtc, true);
2376 
2377 		dce_v6_0_cursor_move_locked(crtc, amdgpu_crtc->cursor_x,
2378 					    amdgpu_crtc->cursor_y);
2379 
2380 		dce_v6_0_show_cursor(crtc);
2381 		dce_v6_0_lock_cursor(crtc, false);
2382 	}
2383 }
2384 
2385 static int dce_v6_0_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
2386 				   u16 *blue, uint32_t size,
2387 				   struct drm_modeset_acquire_ctx *ctx)
2388 {
2389 	dce_v6_0_crtc_load_lut(crtc);
2390 
2391 	return 0;
2392 }
2393 
2394 static void dce_v6_0_crtc_destroy(struct drm_crtc *crtc)
2395 {
2396 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2397 
2398 	drm_crtc_cleanup(crtc);
2399 	kfree(amdgpu_crtc);
2400 }
2401 
2402 static const struct drm_crtc_funcs dce_v6_0_crtc_funcs = {
2403 	.cursor_set2 = dce_v6_0_crtc_cursor_set2,
2404 	.cursor_move = dce_v6_0_crtc_cursor_move,
2405 	.gamma_set = dce_v6_0_crtc_gamma_set,
2406 	.set_config = amdgpu_display_crtc_set_config,
2407 	.destroy = dce_v6_0_crtc_destroy,
2408 	.page_flip_target = amdgpu_display_crtc_page_flip_target,
2409 	.get_vblank_counter = amdgpu_get_vblank_counter_kms,
2410 	.enable_vblank = amdgpu_enable_vblank_kms,
2411 	.disable_vblank = amdgpu_disable_vblank_kms,
2412 	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
2413 };
2414 
2415 static void dce_v6_0_crtc_dpms(struct drm_crtc *crtc, int mode)
2416 {
2417 	struct drm_device *dev = crtc->dev;
2418 	struct amdgpu_device *adev = drm_to_adev(dev);
2419 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2420 	unsigned type;
2421 
2422 	switch (mode) {
2423 	case DRM_MODE_DPMS_ON:
2424 		amdgpu_crtc->enabled = true;
2425 		amdgpu_atombios_crtc_enable(crtc, ATOM_ENABLE);
2426 		amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE);
2427 		/* Make sure VBLANK and PFLIP interrupts are still enabled */
2428 		type = amdgpu_display_crtc_idx_to_irq_type(adev,
2429 						amdgpu_crtc->crtc_id);
2430 		amdgpu_irq_update(adev, &adev->crtc_irq, type);
2431 		amdgpu_irq_update(adev, &adev->pageflip_irq, type);
2432 		drm_crtc_vblank_on(crtc);
2433 		dce_v6_0_crtc_load_lut(crtc);
2434 		break;
2435 	case DRM_MODE_DPMS_STANDBY:
2436 	case DRM_MODE_DPMS_SUSPEND:
2437 	case DRM_MODE_DPMS_OFF:
2438 		drm_crtc_vblank_off(crtc);
2439 		if (amdgpu_crtc->enabled)
2440 			amdgpu_atombios_crtc_blank(crtc, ATOM_ENABLE);
2441 		amdgpu_atombios_crtc_enable(crtc, ATOM_DISABLE);
2442 		amdgpu_crtc->enabled = false;
2443 		break;
2444 	}
2445 	/* adjust pm to dpms */
2446 	amdgpu_dpm_compute_clocks(adev);
2447 }
2448 
2449 static void dce_v6_0_crtc_prepare(struct drm_crtc *crtc)
2450 {
2451 	/* disable crtc pair power gating before programming */
2452 	amdgpu_atombios_crtc_powergate(crtc, ATOM_DISABLE);
2453 	amdgpu_atombios_crtc_lock(crtc, ATOM_ENABLE);
2454 	dce_v6_0_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2455 }
2456 
2457 static void dce_v6_0_crtc_commit(struct drm_crtc *crtc)
2458 {
2459 	dce_v6_0_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
2460 	amdgpu_atombios_crtc_lock(crtc, ATOM_DISABLE);
2461 }
2462 
2463 static void dce_v6_0_crtc_disable(struct drm_crtc *crtc)
2464 {
2465 
2466 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2467 	struct drm_device *dev = crtc->dev;
2468 	struct amdgpu_device *adev = drm_to_adev(dev);
2469 	struct amdgpu_atom_ss ss;
2470 	int i;
2471 
2472 	dce_v6_0_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2473 	if (crtc->primary->fb) {
2474 		int r;
2475 		struct amdgpu_bo *abo;
2476 
2477 		abo = gem_to_amdgpu_bo(crtc->primary->fb->obj[0]);
2478 		r = amdgpu_bo_reserve(abo, true);
2479 		if (unlikely(r))
2480 			DRM_ERROR("failed to reserve abo before unpin\n");
2481 		else {
2482 			amdgpu_bo_unpin(abo);
2483 			amdgpu_bo_unreserve(abo);
2484 		}
2485 	}
2486 	/* disable the GRPH */
2487 	dce_v6_0_grph_enable(crtc, false);
2488 
2489 	amdgpu_atombios_crtc_powergate(crtc, ATOM_ENABLE);
2490 
2491 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
2492 		if (adev->mode_info.crtcs[i] &&
2493 		    adev->mode_info.crtcs[i]->enabled &&
2494 		    i != amdgpu_crtc->crtc_id &&
2495 		    amdgpu_crtc->pll_id == adev->mode_info.crtcs[i]->pll_id) {
2496 			/* one other crtc is using this pll don't turn
2497 			 * off the pll
2498 			 */
2499 			goto done;
2500 		}
2501 	}
2502 
2503 	switch (amdgpu_crtc->pll_id) {
2504 	case ATOM_PPLL1:
2505 	case ATOM_PPLL2:
2506 		/* disable the ppll */
2507 		amdgpu_atombios_crtc_program_pll(crtc, amdgpu_crtc->crtc_id, amdgpu_crtc->pll_id,
2508 						 0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2509 		break;
2510 	default:
2511 		break;
2512 	}
2513 done:
2514 	amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
2515 	amdgpu_crtc->adjusted_clock = 0;
2516 	amdgpu_crtc->encoder = NULL;
2517 	amdgpu_crtc->connector = NULL;
2518 }
2519 
2520 static int dce_v6_0_crtc_mode_set(struct drm_crtc *crtc,
2521 				  struct drm_display_mode *mode,
2522 				  struct drm_display_mode *adjusted_mode,
2523 				  int x, int y, struct drm_framebuffer *old_fb)
2524 {
2525 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2526 
2527 	if (!amdgpu_crtc->adjusted_clock)
2528 		return -EINVAL;
2529 
2530 	amdgpu_atombios_crtc_set_pll(crtc, adjusted_mode);
2531 	amdgpu_atombios_crtc_set_dtd_timing(crtc, adjusted_mode);
2532 	dce_v6_0_crtc_do_set_base(crtc, old_fb, x, y, 0);
2533 	amdgpu_atombios_crtc_overscan_setup(crtc, mode, adjusted_mode);
2534 	amdgpu_atombios_crtc_scaler_setup(crtc);
2535 	dce_v6_0_cursor_reset(crtc);
2536 	/* update the hw version fpr dpm */
2537 	amdgpu_crtc->hw_mode = *adjusted_mode;
2538 
2539 	return 0;
2540 }
2541 
2542 static bool dce_v6_0_crtc_mode_fixup(struct drm_crtc *crtc,
2543 				     const struct drm_display_mode *mode,
2544 				     struct drm_display_mode *adjusted_mode)
2545 {
2546 
2547 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2548 	struct drm_device *dev = crtc->dev;
2549 	struct drm_encoder *encoder;
2550 
2551 	/* assign the encoder to the amdgpu crtc to avoid repeated lookups later */
2552 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2553 		if (encoder->crtc == crtc) {
2554 			amdgpu_crtc->encoder = encoder;
2555 			amdgpu_crtc->connector = amdgpu_get_connector_for_encoder(encoder);
2556 			break;
2557 		}
2558 	}
2559 	if ((amdgpu_crtc->encoder == NULL) || (amdgpu_crtc->connector == NULL)) {
2560 		amdgpu_crtc->encoder = NULL;
2561 		amdgpu_crtc->connector = NULL;
2562 		return false;
2563 	}
2564 	if (!amdgpu_display_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
2565 		return false;
2566 	if (amdgpu_atombios_crtc_prepare_pll(crtc, adjusted_mode))
2567 		return false;
2568 	/* pick pll */
2569 	amdgpu_crtc->pll_id = dce_v6_0_pick_pll(crtc);
2570 	/* if we can't get a PPLL for a non-DP encoder, fail */
2571 	if ((amdgpu_crtc->pll_id == ATOM_PPLL_INVALID) &&
2572 	    !ENCODER_MODE_IS_DP(amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder)))
2573 		return false;
2574 
2575 	return true;
2576 }
2577 
2578 static int dce_v6_0_crtc_set_base(struct drm_crtc *crtc, int x, int y,
2579 				  struct drm_framebuffer *old_fb)
2580 {
2581 	return dce_v6_0_crtc_do_set_base(crtc, old_fb, x, y, 0);
2582 }
2583 
2584 static int dce_v6_0_crtc_set_base_atomic(struct drm_crtc *crtc,
2585 					 struct drm_framebuffer *fb,
2586 					 int x, int y, enum mode_set_atomic state)
2587 {
2588 	return dce_v6_0_crtc_do_set_base(crtc, fb, x, y, 1);
2589 }
2590 
2591 static const struct drm_crtc_helper_funcs dce_v6_0_crtc_helper_funcs = {
2592 	.dpms = dce_v6_0_crtc_dpms,
2593 	.mode_fixup = dce_v6_0_crtc_mode_fixup,
2594 	.mode_set = dce_v6_0_crtc_mode_set,
2595 	.mode_set_base = dce_v6_0_crtc_set_base,
2596 	.mode_set_base_atomic = dce_v6_0_crtc_set_base_atomic,
2597 	.prepare = dce_v6_0_crtc_prepare,
2598 	.commit = dce_v6_0_crtc_commit,
2599 	.disable = dce_v6_0_crtc_disable,
2600 	.get_scanout_position = amdgpu_crtc_get_scanout_position,
2601 };
2602 
2603 static int dce_v6_0_crtc_init(struct amdgpu_device *adev, int index)
2604 {
2605 	struct amdgpu_crtc *amdgpu_crtc;
2606 
2607 	amdgpu_crtc = kzalloc(sizeof(struct amdgpu_crtc) +
2608 			      (AMDGPUFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
2609 	if (amdgpu_crtc == NULL)
2610 		return -ENOMEM;
2611 
2612 	drm_crtc_init(adev_to_drm(adev), &amdgpu_crtc->base, &dce_v6_0_crtc_funcs);
2613 
2614 	drm_mode_crtc_set_gamma_size(&amdgpu_crtc->base, 256);
2615 	amdgpu_crtc->crtc_id = index;
2616 	adev->mode_info.crtcs[index] = amdgpu_crtc;
2617 
2618 	amdgpu_crtc->max_cursor_width = CURSOR_WIDTH;
2619 	amdgpu_crtc->max_cursor_height = CURSOR_HEIGHT;
2620 	adev_to_drm(adev)->mode_config.cursor_width = amdgpu_crtc->max_cursor_width;
2621 	adev_to_drm(adev)->mode_config.cursor_height = amdgpu_crtc->max_cursor_height;
2622 
2623 	amdgpu_crtc->crtc_offset = crtc_offsets[amdgpu_crtc->crtc_id];
2624 
2625 	amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
2626 	amdgpu_crtc->adjusted_clock = 0;
2627 	amdgpu_crtc->encoder = NULL;
2628 	amdgpu_crtc->connector = NULL;
2629 	drm_crtc_helper_add(&amdgpu_crtc->base, &dce_v6_0_crtc_helper_funcs);
2630 
2631 	return 0;
2632 }
2633 
2634 static int dce_v6_0_early_init(void *handle)
2635 {
2636 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2637 
2638 	adev->audio_endpt_rreg = &dce_v6_0_audio_endpt_rreg;
2639 	adev->audio_endpt_wreg = &dce_v6_0_audio_endpt_wreg;
2640 
2641 	dce_v6_0_set_display_funcs(adev);
2642 
2643 	adev->mode_info.num_crtc = dce_v6_0_get_num_crtc(adev);
2644 
2645 	switch (adev->asic_type) {
2646 	case CHIP_TAHITI:
2647 	case CHIP_PITCAIRN:
2648 	case CHIP_VERDE:
2649 		adev->mode_info.num_hpd = 6;
2650 		adev->mode_info.num_dig = 6;
2651 		break;
2652 	case CHIP_OLAND:
2653 		adev->mode_info.num_hpd = 2;
2654 		adev->mode_info.num_dig = 2;
2655 		break;
2656 	default:
2657 		return -EINVAL;
2658 	}
2659 
2660 	dce_v6_0_set_irq_funcs(adev);
2661 
2662 	return 0;
2663 }
2664 
2665 static int dce_v6_0_sw_init(void *handle)
2666 {
2667 	int r, i;
2668 	bool ret;
2669 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2670 
2671 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
2672 		r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, i + 1, &adev->crtc_irq);
2673 		if (r)
2674 			return r;
2675 	}
2676 
2677 	for (i = 8; i < 20; i += 2) {
2678 		r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, i, &adev->pageflip_irq);
2679 		if (r)
2680 			return r;
2681 	}
2682 
2683 	/* HPD hotplug */
2684 	r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 42, &adev->hpd_irq);
2685 	if (r)
2686 		return r;
2687 
2688 	adev->mode_info.mode_config_initialized = true;
2689 
2690 	adev_to_drm(adev)->mode_config.funcs = &amdgpu_mode_funcs;
2691 	adev_to_drm(adev)->mode_config.async_page_flip = true;
2692 	adev_to_drm(adev)->mode_config.max_width = 16384;
2693 	adev_to_drm(adev)->mode_config.max_height = 16384;
2694 	adev_to_drm(adev)->mode_config.preferred_depth = 24;
2695 	adev_to_drm(adev)->mode_config.prefer_shadow = 1;
2696 	adev_to_drm(adev)->mode_config.fb_modifiers_not_supported = true;
2697 
2698 	r = amdgpu_display_modeset_create_props(adev);
2699 	if (r)
2700 		return r;
2701 
2702 	adev_to_drm(adev)->mode_config.max_width = 16384;
2703 	adev_to_drm(adev)->mode_config.max_height = 16384;
2704 
2705 	/* allocate crtcs */
2706 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
2707 		r = dce_v6_0_crtc_init(adev, i);
2708 		if (r)
2709 			return r;
2710 	}
2711 
2712 	ret = amdgpu_atombios_get_connector_info_from_object_table(adev);
2713 	if (ret)
2714 		amdgpu_display_print_display_setup(adev_to_drm(adev));
2715 	else
2716 		return -EINVAL;
2717 
2718 	/* setup afmt */
2719 	r = dce_v6_0_afmt_init(adev);
2720 	if (r)
2721 		return r;
2722 
2723 	r = dce_v6_0_audio_init(adev);
2724 	if (r)
2725 		return r;
2726 
2727 	/* Disable vblank IRQs aggressively for power-saving */
2728 	/* XXX: can this be enabled for DC? */
2729 	adev_to_drm(adev)->vblank_disable_immediate = true;
2730 
2731 	r = drm_vblank_init(adev_to_drm(adev), adev->mode_info.num_crtc);
2732 	if (r)
2733 		return r;
2734 
2735 	/* Pre-DCE11 */
2736 	INIT_DELAYED_WORK(&adev->hotplug_work,
2737 		  amdgpu_display_hotplug_work_func);
2738 
2739 	drm_kms_helper_poll_init(adev_to_drm(adev));
2740 
2741 	return r;
2742 }
2743 
2744 static int dce_v6_0_sw_fini(void *handle)
2745 {
2746 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2747 
2748 	kfree(adev->mode_info.bios_hardcoded_edid);
2749 
2750 	drm_kms_helper_poll_fini(adev_to_drm(adev));
2751 
2752 	dce_v6_0_audio_fini(adev);
2753 	dce_v6_0_afmt_fini(adev);
2754 
2755 	drm_mode_config_cleanup(adev_to_drm(adev));
2756 	adev->mode_info.mode_config_initialized = false;
2757 
2758 	return 0;
2759 }
2760 
2761 static int dce_v6_0_hw_init(void *handle)
2762 {
2763 	int i;
2764 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2765 
2766 	/* disable vga render */
2767 	dce_v6_0_set_vga_render_state(adev, false);
2768 	/* init dig PHYs, disp eng pll */
2769 	amdgpu_atombios_encoder_init_dig(adev);
2770 	amdgpu_atombios_crtc_set_disp_eng_pll(adev, adev->clock.default_dispclk);
2771 
2772 	/* initialize hpd */
2773 	dce_v6_0_hpd_init(adev);
2774 
2775 	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
2776 		dce_v6_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
2777 	}
2778 
2779 	dce_v6_0_pageflip_interrupt_init(adev);
2780 
2781 	return 0;
2782 }
2783 
2784 static int dce_v6_0_hw_fini(void *handle)
2785 {
2786 	int i;
2787 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2788 
2789 	dce_v6_0_hpd_fini(adev);
2790 
2791 	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
2792 		dce_v6_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
2793 	}
2794 
2795 	dce_v6_0_pageflip_interrupt_fini(adev);
2796 
2797 	flush_delayed_work(&adev->hotplug_work);
2798 
2799 	return 0;
2800 }
2801 
2802 static int dce_v6_0_suspend(void *handle)
2803 {
2804 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2805 	int r;
2806 
2807 	r = amdgpu_display_suspend_helper(adev);
2808 	if (r)
2809 		return r;
2810 	adev->mode_info.bl_level =
2811 		amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
2812 
2813 	return dce_v6_0_hw_fini(handle);
2814 }
2815 
2816 static int dce_v6_0_resume(void *handle)
2817 {
2818 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2819 	int ret;
2820 
2821 	amdgpu_atombios_encoder_set_backlight_level_to_reg(adev,
2822 							   adev->mode_info.bl_level);
2823 
2824 	ret = dce_v6_0_hw_init(handle);
2825 
2826 	/* turn on the BL */
2827 	if (adev->mode_info.bl_encoder) {
2828 		u8 bl_level = amdgpu_display_backlight_get_level(adev,
2829 								  adev->mode_info.bl_encoder);
2830 		amdgpu_display_backlight_set_level(adev, adev->mode_info.bl_encoder,
2831 						    bl_level);
2832 	}
2833 	if (ret)
2834 		return ret;
2835 
2836 	return amdgpu_display_resume_helper(adev);
2837 }
2838 
2839 static bool dce_v6_0_is_idle(void *handle)
2840 {
2841 	return true;
2842 }
2843 
2844 static int dce_v6_0_wait_for_idle(void *handle)
2845 {
2846 	return 0;
2847 }
2848 
2849 static int dce_v6_0_soft_reset(void *handle)
2850 {
2851 	DRM_INFO("xxxx: dce_v6_0_soft_reset --- no impl!!\n");
2852 	return 0;
2853 }
2854 
2855 static void dce_v6_0_set_crtc_vblank_interrupt_state(struct amdgpu_device *adev,
2856 						     int crtc,
2857 						     enum amdgpu_interrupt_state state)
2858 {
2859 	u32 reg_block, interrupt_mask;
2860 
2861 	if (crtc >= adev->mode_info.num_crtc) {
2862 		DRM_DEBUG("invalid crtc %d\n", crtc);
2863 		return;
2864 	}
2865 
2866 	switch (crtc) {
2867 	case 0:
2868 		reg_block = SI_CRTC0_REGISTER_OFFSET;
2869 		break;
2870 	case 1:
2871 		reg_block = SI_CRTC1_REGISTER_OFFSET;
2872 		break;
2873 	case 2:
2874 		reg_block = SI_CRTC2_REGISTER_OFFSET;
2875 		break;
2876 	case 3:
2877 		reg_block = SI_CRTC3_REGISTER_OFFSET;
2878 		break;
2879 	case 4:
2880 		reg_block = SI_CRTC4_REGISTER_OFFSET;
2881 		break;
2882 	case 5:
2883 		reg_block = SI_CRTC5_REGISTER_OFFSET;
2884 		break;
2885 	default:
2886 		DRM_DEBUG("invalid crtc %d\n", crtc);
2887 		return;
2888 	}
2889 
2890 	switch (state) {
2891 	case AMDGPU_IRQ_STATE_DISABLE:
2892 		interrupt_mask = RREG32(mmINT_MASK + reg_block);
2893 		interrupt_mask &= ~VBLANK_INT_MASK;
2894 		WREG32(mmINT_MASK + reg_block, interrupt_mask);
2895 		break;
2896 	case AMDGPU_IRQ_STATE_ENABLE:
2897 		interrupt_mask = RREG32(mmINT_MASK + reg_block);
2898 		interrupt_mask |= VBLANK_INT_MASK;
2899 		WREG32(mmINT_MASK + reg_block, interrupt_mask);
2900 		break;
2901 	default:
2902 		break;
2903 	}
2904 }
2905 
2906 static void dce_v6_0_set_crtc_vline_interrupt_state(struct amdgpu_device *adev,
2907 						    int crtc,
2908 						    enum amdgpu_interrupt_state state)
2909 {
2910 
2911 }
2912 
2913 static int dce_v6_0_set_hpd_interrupt_state(struct amdgpu_device *adev,
2914 					    struct amdgpu_irq_src *src,
2915 					    unsigned type,
2916 					    enum amdgpu_interrupt_state state)
2917 {
2918 	u32 dc_hpd_int_cntl;
2919 
2920 	if (type >= adev->mode_info.num_hpd) {
2921 		DRM_DEBUG("invalid hdp %d\n", type);
2922 		return 0;
2923 	}
2924 
2925 	switch (state) {
2926 	case AMDGPU_IRQ_STATE_DISABLE:
2927 		dc_hpd_int_cntl = RREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[type]);
2928 		dc_hpd_int_cntl &= ~DC_HPDx_INT_EN;
2929 		WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[type], dc_hpd_int_cntl);
2930 		break;
2931 	case AMDGPU_IRQ_STATE_ENABLE:
2932 		dc_hpd_int_cntl = RREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[type]);
2933 		dc_hpd_int_cntl |= DC_HPDx_INT_EN;
2934 		WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[type], dc_hpd_int_cntl);
2935 		break;
2936 	default:
2937 		break;
2938 	}
2939 
2940 	return 0;
2941 }
2942 
2943 static int dce_v6_0_set_crtc_interrupt_state(struct amdgpu_device *adev,
2944 					     struct amdgpu_irq_src *src,
2945 					     unsigned type,
2946 					     enum amdgpu_interrupt_state state)
2947 {
2948 	switch (type) {
2949 	case AMDGPU_CRTC_IRQ_VBLANK1:
2950 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 0, state);
2951 		break;
2952 	case AMDGPU_CRTC_IRQ_VBLANK2:
2953 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 1, state);
2954 		break;
2955 	case AMDGPU_CRTC_IRQ_VBLANK3:
2956 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 2, state);
2957 		break;
2958 	case AMDGPU_CRTC_IRQ_VBLANK4:
2959 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 3, state);
2960 		break;
2961 	case AMDGPU_CRTC_IRQ_VBLANK5:
2962 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 4, state);
2963 		break;
2964 	case AMDGPU_CRTC_IRQ_VBLANK6:
2965 		dce_v6_0_set_crtc_vblank_interrupt_state(adev, 5, state);
2966 		break;
2967 	case AMDGPU_CRTC_IRQ_VLINE1:
2968 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 0, state);
2969 		break;
2970 	case AMDGPU_CRTC_IRQ_VLINE2:
2971 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 1, state);
2972 		break;
2973 	case AMDGPU_CRTC_IRQ_VLINE3:
2974 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 2, state);
2975 		break;
2976 	case AMDGPU_CRTC_IRQ_VLINE4:
2977 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 3, state);
2978 		break;
2979 	case AMDGPU_CRTC_IRQ_VLINE5:
2980 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 4, state);
2981 		break;
2982 	case AMDGPU_CRTC_IRQ_VLINE6:
2983 		dce_v6_0_set_crtc_vline_interrupt_state(adev, 5, state);
2984 		break;
2985 	default:
2986 		break;
2987 	}
2988 	return 0;
2989 }
2990 
2991 static int dce_v6_0_crtc_irq(struct amdgpu_device *adev,
2992 			     struct amdgpu_irq_src *source,
2993 			     struct amdgpu_iv_entry *entry)
2994 {
2995 	unsigned crtc = entry->src_id - 1;
2996 	uint32_t disp_int = RREG32(interrupt_status_offsets[crtc].reg);
2997 	unsigned int irq_type = amdgpu_display_crtc_idx_to_irq_type(adev,
2998 								    crtc);
2999 
3000 	switch (entry->src_data[0]) {
3001 	case 0: /* vblank */
3002 		if (disp_int & interrupt_status_offsets[crtc].vblank)
3003 			WREG32(mmVBLANK_STATUS + crtc_offsets[crtc], VBLANK_ACK);
3004 		else
3005 			DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
3006 
3007 		if (amdgpu_irq_enabled(adev, source, irq_type)) {
3008 			drm_handle_vblank(adev_to_drm(adev), crtc);
3009 		}
3010 		DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
3011 		break;
3012 	case 1: /* vline */
3013 		if (disp_int & interrupt_status_offsets[crtc].vline)
3014 			WREG32(mmVLINE_STATUS + crtc_offsets[crtc], VLINE_ACK);
3015 		else
3016 			DRM_DEBUG("IH: IH event w/o asserted irq bit?\n");
3017 
3018 		DRM_DEBUG("IH: D%d vline\n", crtc + 1);
3019 		break;
3020 	default:
3021 		DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data[0]);
3022 		break;
3023 	}
3024 
3025 	return 0;
3026 }
3027 
3028 static int dce_v6_0_set_pageflip_interrupt_state(struct amdgpu_device *adev,
3029 						 struct amdgpu_irq_src *src,
3030 						 unsigned type,
3031 						 enum amdgpu_interrupt_state state)
3032 {
3033 	u32 reg;
3034 
3035 	if (type >= adev->mode_info.num_crtc) {
3036 		DRM_ERROR("invalid pageflip crtc %d\n", type);
3037 		return -EINVAL;
3038 	}
3039 
3040 	reg = RREG32(mmGRPH_INTERRUPT_CONTROL + crtc_offsets[type]);
3041 	if (state == AMDGPU_IRQ_STATE_DISABLE)
3042 		WREG32(mmGRPH_INTERRUPT_CONTROL + crtc_offsets[type],
3043 		       reg & ~GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK);
3044 	else
3045 		WREG32(mmGRPH_INTERRUPT_CONTROL + crtc_offsets[type],
3046 		       reg | GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK);
3047 
3048 	return 0;
3049 }
3050 
3051 static int dce_v6_0_pageflip_irq(struct amdgpu_device *adev,
3052 				 struct amdgpu_irq_src *source,
3053 				 struct amdgpu_iv_entry *entry)
3054 {
3055 	unsigned long flags;
3056 	unsigned crtc_id;
3057 	struct amdgpu_crtc *amdgpu_crtc;
3058 	struct amdgpu_flip_work *works;
3059 
3060 	crtc_id = (entry->src_id - 8) >> 1;
3061 	amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
3062 
3063 	if (crtc_id >= adev->mode_info.num_crtc) {
3064 		DRM_ERROR("invalid pageflip crtc %d\n", crtc_id);
3065 		return -EINVAL;
3066 	}
3067 
3068 	if (RREG32(mmGRPH_INTERRUPT_STATUS + crtc_offsets[crtc_id]) &
3069 	    GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_OCCURRED_MASK)
3070 		WREG32(mmGRPH_INTERRUPT_STATUS + crtc_offsets[crtc_id],
3071 		       GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_CLEAR_MASK);
3072 
3073 	/* IRQ could occur when in initial stage */
3074 	if (amdgpu_crtc == NULL)
3075 		return 0;
3076 
3077 	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
3078 	works = amdgpu_crtc->pflip_works;
3079 	if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
3080 		DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d != "
3081 						"AMDGPU_FLIP_SUBMITTED(%d)\n",
3082 						amdgpu_crtc->pflip_status,
3083 						AMDGPU_FLIP_SUBMITTED);
3084 		spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
3085 		return 0;
3086 	}
3087 
3088 	/* page flip completed. clean up */
3089 	amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
3090 	amdgpu_crtc->pflip_works = NULL;
3091 
3092 	/* wakeup usersapce */
3093 	if (works->event)
3094 		drm_crtc_send_vblank_event(&amdgpu_crtc->base, works->event);
3095 
3096 	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
3097 
3098 	drm_crtc_vblank_put(&amdgpu_crtc->base);
3099 	schedule_work(&works->unpin_work);
3100 
3101 	return 0;
3102 }
3103 
3104 static int dce_v6_0_hpd_irq(struct amdgpu_device *adev,
3105 			    struct amdgpu_irq_src *source,
3106 			    struct amdgpu_iv_entry *entry)
3107 {
3108 	uint32_t disp_int, mask;
3109 	unsigned hpd;
3110 
3111 	if (entry->src_data[0] >= adev->mode_info.num_hpd) {
3112 		DRM_DEBUG("Unhandled interrupt: %d %d\n", entry->src_id, entry->src_data[0]);
3113 		return 0;
3114 	}
3115 
3116 	hpd = entry->src_data[0];
3117 	disp_int = RREG32(interrupt_status_offsets[hpd].reg);
3118 	mask = interrupt_status_offsets[hpd].hpd;
3119 
3120 	if (disp_int & mask) {
3121 		dce_v6_0_hpd_int_ack(adev, hpd);
3122 		schedule_delayed_work(&adev->hotplug_work, 0);
3123 		DRM_DEBUG("IH: HPD%d\n", hpd + 1);
3124 	}
3125 
3126 	return 0;
3127 
3128 }
3129 
3130 static int dce_v6_0_set_clockgating_state(void *handle,
3131 					  enum amd_clockgating_state state)
3132 {
3133 	return 0;
3134 }
3135 
3136 static int dce_v6_0_set_powergating_state(void *handle,
3137 					  enum amd_powergating_state state)
3138 {
3139 	return 0;
3140 }
3141 
3142 static const struct amd_ip_funcs dce_v6_0_ip_funcs = {
3143 	.name = "dce_v6_0",
3144 	.early_init = dce_v6_0_early_init,
3145 	.late_init = NULL,
3146 	.sw_init = dce_v6_0_sw_init,
3147 	.sw_fini = dce_v6_0_sw_fini,
3148 	.hw_init = dce_v6_0_hw_init,
3149 	.hw_fini = dce_v6_0_hw_fini,
3150 	.suspend = dce_v6_0_suspend,
3151 	.resume = dce_v6_0_resume,
3152 	.is_idle = dce_v6_0_is_idle,
3153 	.wait_for_idle = dce_v6_0_wait_for_idle,
3154 	.soft_reset = dce_v6_0_soft_reset,
3155 	.set_clockgating_state = dce_v6_0_set_clockgating_state,
3156 	.set_powergating_state = dce_v6_0_set_powergating_state,
3157 	.dump_ip_state = NULL,
3158 	.print_ip_state = NULL,
3159 };
3160 
3161 static void
3162 dce_v6_0_encoder_mode_set(struct drm_encoder *encoder,
3163 			  struct drm_display_mode *mode,
3164 			  struct drm_display_mode *adjusted_mode)
3165 {
3166 
3167 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3168 	int em = amdgpu_atombios_encoder_get_encoder_mode(encoder);
3169 
3170 	amdgpu_encoder->pixel_clock = adjusted_mode->clock;
3171 
3172 	/* need to call this here rather than in prepare() since we need some crtc info */
3173 	amdgpu_atombios_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
3174 
3175 	/* set scaler clears this on some chips */
3176 	dce_v6_0_set_interleave(encoder->crtc, mode);
3177 
3178 	if (em == ATOM_ENCODER_MODE_HDMI || ENCODER_MODE_IS_DP(em)) {
3179 		dce_v6_0_afmt_enable(encoder, true);
3180 		dce_v6_0_afmt_setmode(encoder, adjusted_mode);
3181 	}
3182 }
3183 
3184 static void dce_v6_0_encoder_prepare(struct drm_encoder *encoder)
3185 {
3186 
3187 	struct amdgpu_device *adev = drm_to_adev(encoder->dev);
3188 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3189 	struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder);
3190 
3191 	if ((amdgpu_encoder->active_device &
3192 	     (ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) ||
3193 	    (amdgpu_encoder_get_dp_bridge_encoder_id(encoder) !=
3194 	     ENCODER_OBJECT_ID_NONE)) {
3195 		struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
3196 		if (dig) {
3197 			dig->dig_encoder = dce_v6_0_pick_dig_encoder(encoder);
3198 			if (amdgpu_encoder->active_device & ATOM_DEVICE_DFP_SUPPORT)
3199 				dig->afmt = adev->mode_info.afmt[dig->dig_encoder];
3200 		}
3201 	}
3202 
3203 	amdgpu_atombios_scratch_regs_lock(adev, true);
3204 
3205 	if (connector) {
3206 		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
3207 
3208 		/* select the clock/data port if it uses a router */
3209 		if (amdgpu_connector->router.cd_valid)
3210 			amdgpu_i2c_router_select_cd_port(amdgpu_connector);
3211 
3212 		/* turn eDP panel on for mode set */
3213 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
3214 			amdgpu_atombios_encoder_set_edp_panel_power(connector,
3215 							     ATOM_TRANSMITTER_ACTION_POWER_ON);
3216 	}
3217 
3218 	/* this is needed for the pll/ss setup to work correctly in some cases */
3219 	amdgpu_atombios_encoder_set_crtc_source(encoder);
3220 	/* set up the FMT blocks */
3221 	dce_v6_0_program_fmt(encoder);
3222 }
3223 
3224 static void dce_v6_0_encoder_commit(struct drm_encoder *encoder)
3225 {
3226 
3227 	struct drm_device *dev = encoder->dev;
3228 	struct amdgpu_device *adev = drm_to_adev(dev);
3229 
3230 	/* need to call this here as we need the crtc set up */
3231 	amdgpu_atombios_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
3232 	amdgpu_atombios_scratch_regs_lock(adev, false);
3233 }
3234 
3235 static void dce_v6_0_encoder_disable(struct drm_encoder *encoder)
3236 {
3237 
3238 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3239 	struct amdgpu_encoder_atom_dig *dig;
3240 	int em = amdgpu_atombios_encoder_get_encoder_mode(encoder);
3241 
3242 	amdgpu_atombios_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
3243 
3244 	if (amdgpu_atombios_encoder_is_digital(encoder)) {
3245 		if (em == ATOM_ENCODER_MODE_HDMI || ENCODER_MODE_IS_DP(em))
3246 			dce_v6_0_afmt_enable(encoder, false);
3247 		dig = amdgpu_encoder->enc_priv;
3248 		dig->dig_encoder = -1;
3249 	}
3250 	amdgpu_encoder->active_device = 0;
3251 }
3252 
3253 /* these are handled by the primary encoders */
3254 static void dce_v6_0_ext_prepare(struct drm_encoder *encoder)
3255 {
3256 
3257 }
3258 
3259 static void dce_v6_0_ext_commit(struct drm_encoder *encoder)
3260 {
3261 
3262 }
3263 
3264 static void
3265 dce_v6_0_ext_mode_set(struct drm_encoder *encoder,
3266 		      struct drm_display_mode *mode,
3267 		      struct drm_display_mode *adjusted_mode)
3268 {
3269 
3270 }
3271 
3272 static void dce_v6_0_ext_disable(struct drm_encoder *encoder)
3273 {
3274 
3275 }
3276 
3277 static void
3278 dce_v6_0_ext_dpms(struct drm_encoder *encoder, int mode)
3279 {
3280 
3281 }
3282 
3283 static bool dce_v6_0_ext_mode_fixup(struct drm_encoder *encoder,
3284 				    const struct drm_display_mode *mode,
3285 				    struct drm_display_mode *adjusted_mode)
3286 {
3287 	return true;
3288 }
3289 
3290 static const struct drm_encoder_helper_funcs dce_v6_0_ext_helper_funcs = {
3291 	.dpms = dce_v6_0_ext_dpms,
3292 	.mode_fixup = dce_v6_0_ext_mode_fixup,
3293 	.prepare = dce_v6_0_ext_prepare,
3294 	.mode_set = dce_v6_0_ext_mode_set,
3295 	.commit = dce_v6_0_ext_commit,
3296 	.disable = dce_v6_0_ext_disable,
3297 	/* no detect for TMDS/LVDS yet */
3298 };
3299 
3300 static const struct drm_encoder_helper_funcs dce_v6_0_dig_helper_funcs = {
3301 	.dpms = amdgpu_atombios_encoder_dpms,
3302 	.mode_fixup = amdgpu_atombios_encoder_mode_fixup,
3303 	.prepare = dce_v6_0_encoder_prepare,
3304 	.mode_set = dce_v6_0_encoder_mode_set,
3305 	.commit = dce_v6_0_encoder_commit,
3306 	.disable = dce_v6_0_encoder_disable,
3307 	.detect = amdgpu_atombios_encoder_dig_detect,
3308 };
3309 
3310 static const struct drm_encoder_helper_funcs dce_v6_0_dac_helper_funcs = {
3311 	.dpms = amdgpu_atombios_encoder_dpms,
3312 	.mode_fixup = amdgpu_atombios_encoder_mode_fixup,
3313 	.prepare = dce_v6_0_encoder_prepare,
3314 	.mode_set = dce_v6_0_encoder_mode_set,
3315 	.commit = dce_v6_0_encoder_commit,
3316 	.detect = amdgpu_atombios_encoder_dac_detect,
3317 };
3318 
3319 static void dce_v6_0_encoder_destroy(struct drm_encoder *encoder)
3320 {
3321 	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3322 	if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
3323 		amdgpu_atombios_encoder_fini_backlight(amdgpu_encoder);
3324 	kfree(amdgpu_encoder->enc_priv);
3325 	drm_encoder_cleanup(encoder);
3326 	kfree(amdgpu_encoder);
3327 }
3328 
3329 static const struct drm_encoder_funcs dce_v6_0_encoder_funcs = {
3330 	.destroy = dce_v6_0_encoder_destroy,
3331 };
3332 
3333 static void dce_v6_0_encoder_add(struct amdgpu_device *adev,
3334 				 uint32_t encoder_enum,
3335 				 uint32_t supported_device,
3336 				 u16 caps)
3337 {
3338 	struct drm_device *dev = adev_to_drm(adev);
3339 	struct drm_encoder *encoder;
3340 	struct amdgpu_encoder *amdgpu_encoder;
3341 
3342 	/* see if we already added it */
3343 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
3344 		amdgpu_encoder = to_amdgpu_encoder(encoder);
3345 		if (amdgpu_encoder->encoder_enum == encoder_enum) {
3346 			amdgpu_encoder->devices |= supported_device;
3347 			return;
3348 		}
3349 
3350 	}
3351 
3352 	/* add a new one */
3353 	amdgpu_encoder = kzalloc(sizeof(struct amdgpu_encoder), GFP_KERNEL);
3354 	if (!amdgpu_encoder)
3355 		return;
3356 
3357 	encoder = &amdgpu_encoder->base;
3358 	switch (adev->mode_info.num_crtc) {
3359 	case 1:
3360 		encoder->possible_crtcs = 0x1;
3361 		break;
3362 	case 2:
3363 	default:
3364 		encoder->possible_crtcs = 0x3;
3365 		break;
3366 	case 4:
3367 		encoder->possible_crtcs = 0xf;
3368 		break;
3369 	case 6:
3370 		encoder->possible_crtcs = 0x3f;
3371 		break;
3372 	}
3373 
3374 	amdgpu_encoder->enc_priv = NULL;
3375 	amdgpu_encoder->encoder_enum = encoder_enum;
3376 	amdgpu_encoder->encoder_id = (encoder_enum & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
3377 	amdgpu_encoder->devices = supported_device;
3378 	amdgpu_encoder->rmx_type = RMX_OFF;
3379 	amdgpu_encoder->underscan_type = UNDERSCAN_OFF;
3380 	amdgpu_encoder->is_ext_encoder = false;
3381 	amdgpu_encoder->caps = caps;
3382 
3383 	switch (amdgpu_encoder->encoder_id) {
3384 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC1:
3385 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2:
3386 		drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3387 				 DRM_MODE_ENCODER_DAC, NULL);
3388 		drm_encoder_helper_add(encoder, &dce_v6_0_dac_helper_funcs);
3389 		break;
3390 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
3391 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
3392 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
3393 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
3394 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
3395 		if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
3396 			amdgpu_encoder->rmx_type = RMX_FULL;
3397 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3398 					 DRM_MODE_ENCODER_LVDS, NULL);
3399 			amdgpu_encoder->enc_priv = amdgpu_atombios_encoder_get_lcd_info(amdgpu_encoder);
3400 		} else if (amdgpu_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT)) {
3401 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3402 					 DRM_MODE_ENCODER_DAC, NULL);
3403 			amdgpu_encoder->enc_priv = amdgpu_atombios_encoder_get_dig_info(amdgpu_encoder);
3404 		} else {
3405 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3406 					 DRM_MODE_ENCODER_TMDS, NULL);
3407 			amdgpu_encoder->enc_priv = amdgpu_atombios_encoder_get_dig_info(amdgpu_encoder);
3408 		}
3409 		drm_encoder_helper_add(encoder, &dce_v6_0_dig_helper_funcs);
3410 		break;
3411 	case ENCODER_OBJECT_ID_SI170B:
3412 	case ENCODER_OBJECT_ID_CH7303:
3413 	case ENCODER_OBJECT_ID_EXTERNAL_SDVOA:
3414 	case ENCODER_OBJECT_ID_EXTERNAL_SDVOB:
3415 	case ENCODER_OBJECT_ID_TITFP513:
3416 	case ENCODER_OBJECT_ID_VT1623:
3417 	case ENCODER_OBJECT_ID_HDMI_SI1930:
3418 	case ENCODER_OBJECT_ID_TRAVIS:
3419 	case ENCODER_OBJECT_ID_NUTMEG:
3420 		/* these are handled by the primary encoders */
3421 		amdgpu_encoder->is_ext_encoder = true;
3422 		if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
3423 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3424 					 DRM_MODE_ENCODER_LVDS, NULL);
3425 		else if (amdgpu_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT))
3426 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3427 					 DRM_MODE_ENCODER_DAC, NULL);
3428 		else
3429 			drm_encoder_init(dev, encoder, &dce_v6_0_encoder_funcs,
3430 					 DRM_MODE_ENCODER_TMDS, NULL);
3431 		drm_encoder_helper_add(encoder, &dce_v6_0_ext_helper_funcs);
3432 		break;
3433 	}
3434 }
3435 
3436 static const struct amdgpu_display_funcs dce_v6_0_display_funcs = {
3437 	.bandwidth_update = &dce_v6_0_bandwidth_update,
3438 	.vblank_get_counter = &dce_v6_0_vblank_get_counter,
3439 	.backlight_set_level = &amdgpu_atombios_encoder_set_backlight_level,
3440 	.backlight_get_level = &amdgpu_atombios_encoder_get_backlight_level,
3441 	.hpd_sense = &dce_v6_0_hpd_sense,
3442 	.hpd_set_polarity = &dce_v6_0_hpd_set_polarity,
3443 	.hpd_get_gpio_reg = &dce_v6_0_hpd_get_gpio_reg,
3444 	.page_flip = &dce_v6_0_page_flip,
3445 	.page_flip_get_scanoutpos = &dce_v6_0_crtc_get_scanoutpos,
3446 	.add_encoder = &dce_v6_0_encoder_add,
3447 	.add_connector = &amdgpu_connector_add,
3448 };
3449 
3450 static void dce_v6_0_set_display_funcs(struct amdgpu_device *adev)
3451 {
3452 	adev->mode_info.funcs = &dce_v6_0_display_funcs;
3453 }
3454 
3455 static const struct amdgpu_irq_src_funcs dce_v6_0_crtc_irq_funcs = {
3456 	.set = dce_v6_0_set_crtc_interrupt_state,
3457 	.process = dce_v6_0_crtc_irq,
3458 };
3459 
3460 static const struct amdgpu_irq_src_funcs dce_v6_0_pageflip_irq_funcs = {
3461 	.set = dce_v6_0_set_pageflip_interrupt_state,
3462 	.process = dce_v6_0_pageflip_irq,
3463 };
3464 
3465 static const struct amdgpu_irq_src_funcs dce_v6_0_hpd_irq_funcs = {
3466 	.set = dce_v6_0_set_hpd_interrupt_state,
3467 	.process = dce_v6_0_hpd_irq,
3468 };
3469 
3470 static void dce_v6_0_set_irq_funcs(struct amdgpu_device *adev)
3471 {
3472 	if (adev->mode_info.num_crtc > 0)
3473 		adev->crtc_irq.num_types = AMDGPU_CRTC_IRQ_VLINE1 + adev->mode_info.num_crtc;
3474 	else
3475 		adev->crtc_irq.num_types = 0;
3476 	adev->crtc_irq.funcs = &dce_v6_0_crtc_irq_funcs;
3477 
3478 	adev->pageflip_irq.num_types = adev->mode_info.num_crtc;
3479 	adev->pageflip_irq.funcs = &dce_v6_0_pageflip_irq_funcs;
3480 
3481 	adev->hpd_irq.num_types = adev->mode_info.num_hpd;
3482 	adev->hpd_irq.funcs = &dce_v6_0_hpd_irq_funcs;
3483 }
3484 
3485 const struct amdgpu_ip_block_version dce_v6_0_ip_block =
3486 {
3487 	.type = AMD_IP_BLOCK_TYPE_DCE,
3488 	.major = 6,
3489 	.minor = 0,
3490 	.rev = 0,
3491 	.funcs = &dce_v6_0_ip_funcs,
3492 };
3493 
3494 const struct amdgpu_ip_block_version dce_v6_4_ip_block =
3495 {
3496 	.type = AMD_IP_BLOCK_TYPE_DCE,
3497 	.major = 6,
3498 	.minor = 4,
3499 	.rev = 0,
3500 	.funcs = &dce_v6_0_ip_funcs,
3501 };
3502