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1 	/*
2  * Copyright 2011 Red Hat 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  * Authors: Ben Skeggs
23  */
24 
25 #include <linux/dma-mapping.h>
26 
27 #include <drm/drmP.h>
28 #include <drm/drm_crtc_helper.h>
29 
30 #include "nouveau_drm.h"
31 #include "nouveau_dma.h"
32 #include "nouveau_gem.h"
33 #include "nouveau_connector.h"
34 #include "nouveau_encoder.h"
35 #include "nouveau_crtc.h"
36 #include "nouveau_fence.h"
37 #include "nv50_display.h"
38 
39 #include <core/client.h>
40 #include <core/gpuobj.h>
41 #include <core/class.h>
42 
43 #include <subdev/timer.h>
44 #include <subdev/bar.h>
45 #include <subdev/fb.h>
46 #include <subdev/i2c.h>
47 
48 #define EVO_DMA_NR 9
49 
50 #define EVO_MASTER  (0x00)
51 #define EVO_FLIP(c) (0x01 + (c))
52 #define EVO_OVLY(c) (0x05 + (c))
53 #define EVO_OIMM(c) (0x09 + (c))
54 #define EVO_CURS(c) (0x0d + (c))
55 
56 /* offsets in shared sync bo of various structures */
57 #define EVO_SYNC(c, o) ((c) * 0x0100 + (o))
58 #define EVO_MAST_NTFY     EVO_SYNC(      0, 0x00)
59 #define EVO_FLIP_SEM0(c)  EVO_SYNC((c) + 1, 0x00)
60 #define EVO_FLIP_SEM1(c)  EVO_SYNC((c) + 1, 0x10)
61 
62 #define EVO_CORE_HANDLE      (0xd1500000)
63 #define EVO_CHAN_HANDLE(t,i) (0xd15c0000 | (((t) & 0x00ff) << 8) | (i))
64 #define EVO_CHAN_OCLASS(t,c) ((nv_hclass(c) & 0xff00) | ((t) & 0x00ff))
65 #define EVO_PUSH_HANDLE(t,i) (0xd15b0000 | (i) |                               \
66 			      (((NV50_DISP_##t##_CLASS) & 0x00ff) << 8))
67 
68 /******************************************************************************
69  * EVO channel
70  *****************************************************************************/
71 
72 struct nv50_chan {
73 	struct nouveau_object *user;
74 	u32 handle;
75 };
76 
77 static int
nv50_chan_create(struct nouveau_object * core,u32 bclass,u8 head,void * data,u32 size,struct nv50_chan * chan)78 nv50_chan_create(struct nouveau_object *core, u32 bclass, u8 head,
79 		 void *data, u32 size, struct nv50_chan *chan)
80 {
81 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
82 	const u32 oclass = EVO_CHAN_OCLASS(bclass, core);
83 	const u32 handle = EVO_CHAN_HANDLE(bclass, head);
84 	int ret;
85 
86 	ret = nouveau_object_new(client, EVO_CORE_HANDLE, handle,
87 				 oclass, data, size, &chan->user);
88 	if (ret)
89 		return ret;
90 
91 	chan->handle = handle;
92 	return 0;
93 }
94 
95 static void
nv50_chan_destroy(struct nouveau_object * core,struct nv50_chan * chan)96 nv50_chan_destroy(struct nouveau_object *core, struct nv50_chan *chan)
97 {
98 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
99 	if (chan->handle)
100 		nouveau_object_del(client, EVO_CORE_HANDLE, chan->handle);
101 }
102 
103 /******************************************************************************
104  * PIO EVO channel
105  *****************************************************************************/
106 
107 struct nv50_pioc {
108 	struct nv50_chan base;
109 };
110 
111 static void
nv50_pioc_destroy(struct nouveau_object * core,struct nv50_pioc * pioc)112 nv50_pioc_destroy(struct nouveau_object *core, struct nv50_pioc *pioc)
113 {
114 	nv50_chan_destroy(core, &pioc->base);
115 }
116 
117 static int
nv50_pioc_create(struct nouveau_object * core,u32 bclass,u8 head,void * data,u32 size,struct nv50_pioc * pioc)118 nv50_pioc_create(struct nouveau_object *core, u32 bclass, u8 head,
119 		 void *data, u32 size, struct nv50_pioc *pioc)
120 {
121 	return nv50_chan_create(core, bclass, head, data, size, &pioc->base);
122 }
123 
124 /******************************************************************************
125  * DMA EVO channel
126  *****************************************************************************/
127 
128 struct nv50_dmac {
129 	struct nv50_chan base;
130 	dma_addr_t handle;
131 	u32 *ptr;
132 
133 	/* Protects against concurrent pushbuf access to this channel, lock is
134 	 * grabbed by evo_wait (if the pushbuf reservation is successful) and
135 	 * dropped again by evo_kick. */
136 	struct mutex lock;
137 };
138 
139 static void
nv50_dmac_destroy(struct nouveau_object * core,struct nv50_dmac * dmac)140 nv50_dmac_destroy(struct nouveau_object *core, struct nv50_dmac *dmac)
141 {
142 	if (dmac->ptr) {
143 		struct pci_dev *pdev = nv_device(core)->pdev;
144 		pci_free_consistent(pdev, PAGE_SIZE, dmac->ptr, dmac->handle);
145 	}
146 
147 	nv50_chan_destroy(core, &dmac->base);
148 }
149 
150 static int
nv50_dmac_create_fbdma(struct nouveau_object * core,u32 parent)151 nv50_dmac_create_fbdma(struct nouveau_object *core, u32 parent)
152 {
153 	struct nouveau_fb *pfb = nouveau_fb(core);
154 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
155 	struct nouveau_object *object;
156 	int ret = nouveau_object_new(client, parent, NvEvoVRAM_LP,
157 				     NV_DMA_IN_MEMORY_CLASS,
158 				     &(struct nv_dma_class) {
159 					.flags = NV_DMA_TARGET_VRAM |
160 						 NV_DMA_ACCESS_RDWR,
161 					.start = 0,
162 					.limit = pfb->ram.size - 1,
163 					.conf0 = NV50_DMA_CONF0_ENABLE |
164 					         NV50_DMA_CONF0_PART_256,
165 				     }, sizeof(struct nv_dma_class), &object);
166 	if (ret)
167 		return ret;
168 
169 	ret = nouveau_object_new(client, parent, NvEvoFB16,
170 				 NV_DMA_IN_MEMORY_CLASS,
171 				 &(struct nv_dma_class) {
172 					.flags = NV_DMA_TARGET_VRAM |
173 						 NV_DMA_ACCESS_RDWR,
174 					.start = 0,
175 					.limit = pfb->ram.size - 1,
176 					.conf0 = NV50_DMA_CONF0_ENABLE | 0x70 |
177 					         NV50_DMA_CONF0_PART_256,
178 				 }, sizeof(struct nv_dma_class), &object);
179 	if (ret)
180 		return ret;
181 
182 	ret = nouveau_object_new(client, parent, NvEvoFB32,
183 				 NV_DMA_IN_MEMORY_CLASS,
184 				 &(struct nv_dma_class) {
185 					.flags = NV_DMA_TARGET_VRAM |
186 						 NV_DMA_ACCESS_RDWR,
187 					.start = 0,
188 					.limit = pfb->ram.size - 1,
189 					.conf0 = NV50_DMA_CONF0_ENABLE | 0x7a |
190 					         NV50_DMA_CONF0_PART_256,
191 				 }, sizeof(struct nv_dma_class), &object);
192 	return ret;
193 }
194 
195 static int
nvc0_dmac_create_fbdma(struct nouveau_object * core,u32 parent)196 nvc0_dmac_create_fbdma(struct nouveau_object *core, u32 parent)
197 {
198 	struct nouveau_fb *pfb = nouveau_fb(core);
199 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
200 	struct nouveau_object *object;
201 	int ret = nouveau_object_new(client, parent, NvEvoVRAM_LP,
202 				     NV_DMA_IN_MEMORY_CLASS,
203 				     &(struct nv_dma_class) {
204 					.flags = NV_DMA_TARGET_VRAM |
205 						 NV_DMA_ACCESS_RDWR,
206 					.start = 0,
207 					.limit = pfb->ram.size - 1,
208 					.conf0 = NVC0_DMA_CONF0_ENABLE,
209 				     }, sizeof(struct nv_dma_class), &object);
210 	if (ret)
211 		return ret;
212 
213 	ret = nouveau_object_new(client, parent, NvEvoFB16,
214 				 NV_DMA_IN_MEMORY_CLASS,
215 				 &(struct nv_dma_class) {
216 					.flags = NV_DMA_TARGET_VRAM |
217 						 NV_DMA_ACCESS_RDWR,
218 					.start = 0,
219 					.limit = pfb->ram.size - 1,
220 					.conf0 = NVC0_DMA_CONF0_ENABLE | 0xfe,
221 				 }, sizeof(struct nv_dma_class), &object);
222 	if (ret)
223 		return ret;
224 
225 	ret = nouveau_object_new(client, parent, NvEvoFB32,
226 				 NV_DMA_IN_MEMORY_CLASS,
227 				 &(struct nv_dma_class) {
228 					.flags = NV_DMA_TARGET_VRAM |
229 						 NV_DMA_ACCESS_RDWR,
230 					.start = 0,
231 					.limit = pfb->ram.size - 1,
232 					.conf0 = NVC0_DMA_CONF0_ENABLE | 0xfe,
233 				 }, sizeof(struct nv_dma_class), &object);
234 	return ret;
235 }
236 
237 static int
nvd0_dmac_create_fbdma(struct nouveau_object * core,u32 parent)238 nvd0_dmac_create_fbdma(struct nouveau_object *core, u32 parent)
239 {
240 	struct nouveau_fb *pfb = nouveau_fb(core);
241 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
242 	struct nouveau_object *object;
243 	int ret = nouveau_object_new(client, parent, NvEvoVRAM_LP,
244 				     NV_DMA_IN_MEMORY_CLASS,
245 				     &(struct nv_dma_class) {
246 					.flags = NV_DMA_TARGET_VRAM |
247 						 NV_DMA_ACCESS_RDWR,
248 					.start = 0,
249 					.limit = pfb->ram.size - 1,
250 					.conf0 = NVD0_DMA_CONF0_ENABLE |
251 						 NVD0_DMA_CONF0_PAGE_LP,
252 				     }, sizeof(struct nv_dma_class), &object);
253 	if (ret)
254 		return ret;
255 
256 	ret = nouveau_object_new(client, parent, NvEvoFB32,
257 				 NV_DMA_IN_MEMORY_CLASS,
258 				 &(struct nv_dma_class) {
259 					.flags = NV_DMA_TARGET_VRAM |
260 						 NV_DMA_ACCESS_RDWR,
261 					.start = 0,
262 					.limit = pfb->ram.size - 1,
263 					.conf0 = NVD0_DMA_CONF0_ENABLE | 0xfe |
264 						 NVD0_DMA_CONF0_PAGE_LP,
265 				 }, sizeof(struct nv_dma_class), &object);
266 	return ret;
267 }
268 
269 static int
nv50_dmac_create(struct nouveau_object * core,u32 bclass,u8 head,void * data,u32 size,u64 syncbuf,struct nv50_dmac * dmac)270 nv50_dmac_create(struct nouveau_object *core, u32 bclass, u8 head,
271 		 void *data, u32 size, u64 syncbuf,
272 		 struct nv50_dmac *dmac)
273 {
274 	struct nouveau_fb *pfb = nouveau_fb(core);
275 	struct nouveau_object *client = nv_pclass(core, NV_CLIENT_CLASS);
276 	struct nouveau_object *object;
277 	u32 pushbuf = *(u32 *)data;
278 	int ret;
279 
280 	mutex_init(&dmac->lock);
281 
282 	dmac->ptr = pci_alloc_consistent(nv_device(core)->pdev, PAGE_SIZE,
283 					&dmac->handle);
284 	if (!dmac->ptr)
285 		return -ENOMEM;
286 
287 	ret = nouveau_object_new(client, NVDRM_DEVICE, pushbuf,
288 				 NV_DMA_FROM_MEMORY_CLASS,
289 				 &(struct nv_dma_class) {
290 					.flags = NV_DMA_TARGET_PCI_US |
291 						 NV_DMA_ACCESS_RD,
292 					.start = dmac->handle + 0x0000,
293 					.limit = dmac->handle + 0x0fff,
294 				 }, sizeof(struct nv_dma_class), &object);
295 	if (ret)
296 		return ret;
297 
298 	ret = nv50_chan_create(core, bclass, head, data, size, &dmac->base);
299 	if (ret)
300 		return ret;
301 
302 	ret = nouveau_object_new(client, dmac->base.handle, NvEvoSync,
303 				 NV_DMA_IN_MEMORY_CLASS,
304 				 &(struct nv_dma_class) {
305 					.flags = NV_DMA_TARGET_VRAM |
306 						 NV_DMA_ACCESS_RDWR,
307 					.start = syncbuf + 0x0000,
308 					.limit = syncbuf + 0x0fff,
309 				 }, sizeof(struct nv_dma_class), &object);
310 	if (ret)
311 		return ret;
312 
313 	ret = nouveau_object_new(client, dmac->base.handle, NvEvoVRAM,
314 				 NV_DMA_IN_MEMORY_CLASS,
315 				 &(struct nv_dma_class) {
316 					.flags = NV_DMA_TARGET_VRAM |
317 						 NV_DMA_ACCESS_RDWR,
318 					.start = 0,
319 					.limit = pfb->ram.size - 1,
320 				 }, sizeof(struct nv_dma_class), &object);
321 	if (ret)
322 		return ret;
323 
324 	if (nv_device(core)->card_type < NV_C0)
325 		ret = nv50_dmac_create_fbdma(core, dmac->base.handle);
326 	else
327 	if (nv_device(core)->card_type < NV_D0)
328 		ret = nvc0_dmac_create_fbdma(core, dmac->base.handle);
329 	else
330 		ret = nvd0_dmac_create_fbdma(core, dmac->base.handle);
331 	return ret;
332 }
333 
334 struct nv50_mast {
335 	struct nv50_dmac base;
336 };
337 
338 struct nv50_curs {
339 	struct nv50_pioc base;
340 };
341 
342 struct nv50_sync {
343 	struct nv50_dmac base;
344 	u32 addr;
345 	u32 data;
346 };
347 
348 struct nv50_ovly {
349 	struct nv50_dmac base;
350 };
351 
352 struct nv50_oimm {
353 	struct nv50_pioc base;
354 };
355 
356 struct nv50_head {
357 	struct nouveau_crtc base;
358 	struct nv50_curs curs;
359 	struct nv50_sync sync;
360 	struct nv50_ovly ovly;
361 	struct nv50_oimm oimm;
362 };
363 
364 #define nv50_head(c) ((struct nv50_head *)nouveau_crtc(c))
365 #define nv50_curs(c) (&nv50_head(c)->curs)
366 #define nv50_sync(c) (&nv50_head(c)->sync)
367 #define nv50_ovly(c) (&nv50_head(c)->ovly)
368 #define nv50_oimm(c) (&nv50_head(c)->oimm)
369 #define nv50_chan(c) (&(c)->base.base)
370 #define nv50_vers(c) nv_mclass(nv50_chan(c)->user)
371 
372 struct nv50_disp {
373 	struct nouveau_object *core;
374 	struct nv50_mast mast;
375 
376 	u32 modeset;
377 
378 	struct nouveau_bo *sync;
379 };
380 
381 static struct nv50_disp *
nv50_disp(struct drm_device * dev)382 nv50_disp(struct drm_device *dev)
383 {
384 	return nouveau_display(dev)->priv;
385 }
386 
387 #define nv50_mast(d) (&nv50_disp(d)->mast)
388 
389 static struct drm_crtc *
nv50_display_crtc_get(struct drm_encoder * encoder)390 nv50_display_crtc_get(struct drm_encoder *encoder)
391 {
392 	return nouveau_encoder(encoder)->crtc;
393 }
394 
395 /******************************************************************************
396  * EVO channel helpers
397  *****************************************************************************/
398 static u32 *
evo_wait(void * evoc,int nr)399 evo_wait(void *evoc, int nr)
400 {
401 	struct nv50_dmac *dmac = evoc;
402 	u32 put = nv_ro32(dmac->base.user, 0x0000) / 4;
403 
404 	mutex_lock(&dmac->lock);
405 	if (put + nr >= (PAGE_SIZE / 4) - 8) {
406 		dmac->ptr[put] = 0x20000000;
407 
408 		nv_wo32(dmac->base.user, 0x0000, 0x00000000);
409 		if (!nv_wait(dmac->base.user, 0x0004, ~0, 0x00000000)) {
410 			mutex_unlock(&dmac->lock);
411 			NV_ERROR(dmac->base.user, "channel stalled\n");
412 			return NULL;
413 		}
414 
415 		put = 0;
416 	}
417 
418 	return dmac->ptr + put;
419 }
420 
421 static void
evo_kick(u32 * push,void * evoc)422 evo_kick(u32 *push, void *evoc)
423 {
424 	struct nv50_dmac *dmac = evoc;
425 	nv_wo32(dmac->base.user, 0x0000, (push - dmac->ptr) << 2);
426 	mutex_unlock(&dmac->lock);
427 }
428 
429 #define evo_mthd(p,m,s) *((p)++) = (((s) << 18) | (m))
430 #define evo_data(p,d)   *((p)++) = (d)
431 
432 static bool
evo_sync_wait(void * data)433 evo_sync_wait(void *data)
434 {
435 	if (nouveau_bo_rd32(data, EVO_MAST_NTFY) != 0x00000000)
436 		return true;
437 	usleep_range(1, 2);
438 	return false;
439 }
440 
441 static int
evo_sync(struct drm_device * dev)442 evo_sync(struct drm_device *dev)
443 {
444 	struct nouveau_device *device = nouveau_dev(dev);
445 	struct nv50_disp *disp = nv50_disp(dev);
446 	struct nv50_mast *mast = nv50_mast(dev);
447 	u32 *push = evo_wait(mast, 8);
448 	if (push) {
449 		nouveau_bo_wr32(disp->sync, EVO_MAST_NTFY, 0x00000000);
450 		evo_mthd(push, 0x0084, 1);
451 		evo_data(push, 0x80000000 | EVO_MAST_NTFY);
452 		evo_mthd(push, 0x0080, 2);
453 		evo_data(push, 0x00000000);
454 		evo_data(push, 0x00000000);
455 		evo_kick(push, mast);
456 		if (nv_wait_cb(device, evo_sync_wait, disp->sync))
457 			return 0;
458 	}
459 
460 	return -EBUSY;
461 }
462 
463 /******************************************************************************
464  * Page flipping channel
465  *****************************************************************************/
466 struct nouveau_bo *
nv50_display_crtc_sema(struct drm_device * dev,int crtc)467 nv50_display_crtc_sema(struct drm_device *dev, int crtc)
468 {
469 	return nv50_disp(dev)->sync;
470 }
471 
472 struct nv50_display_flip {
473 	struct nv50_disp *disp;
474 	struct nv50_sync *chan;
475 };
476 
477 static bool
nv50_display_flip_wait(void * data)478 nv50_display_flip_wait(void *data)
479 {
480 	struct nv50_display_flip *flip = data;
481 	if (nouveau_bo_rd32(flip->disp->sync, flip->chan->addr / 4) ==
482 					      flip->chan->data)
483 		return true;
484 	usleep_range(1, 2);
485 	return false;
486 }
487 
488 void
nv50_display_flip_stop(struct drm_crtc * crtc)489 nv50_display_flip_stop(struct drm_crtc *crtc)
490 {
491 	struct nouveau_device *device = nouveau_dev(crtc->dev);
492 	struct nv50_display_flip flip = {
493 		.disp = nv50_disp(crtc->dev),
494 		.chan = nv50_sync(crtc),
495 	};
496 	u32 *push;
497 
498 	push = evo_wait(flip.chan, 8);
499 	if (push) {
500 		evo_mthd(push, 0x0084, 1);
501 		evo_data(push, 0x00000000);
502 		evo_mthd(push, 0x0094, 1);
503 		evo_data(push, 0x00000000);
504 		evo_mthd(push, 0x00c0, 1);
505 		evo_data(push, 0x00000000);
506 		evo_mthd(push, 0x0080, 1);
507 		evo_data(push, 0x00000000);
508 		evo_kick(push, flip.chan);
509 	}
510 
511 	nv_wait_cb(device, nv50_display_flip_wait, &flip);
512 }
513 
514 int
nv50_display_flip_next(struct drm_crtc * crtc,struct drm_framebuffer * fb,struct nouveau_channel * chan,u32 swap_interval)515 nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
516 		       struct nouveau_channel *chan, u32 swap_interval)
517 {
518 	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
519 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
520 	struct nv50_sync *sync = nv50_sync(crtc);
521 	int head = nv_crtc->index, ret;
522 	u32 *push;
523 
524 	swap_interval <<= 4;
525 	if (swap_interval == 0)
526 		swap_interval |= 0x100;
527 	if (chan == NULL)
528 		evo_sync(crtc->dev);
529 
530 	push = evo_wait(sync, 128);
531 	if (unlikely(push == NULL))
532 		return -EBUSY;
533 
534 	if (chan && nv_mclass(chan->object) < NV84_CHANNEL_IND_CLASS) {
535 		ret = RING_SPACE(chan, 8);
536 		if (ret)
537 			return ret;
538 
539 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 2);
540 		OUT_RING  (chan, NvEvoSema0 + head);
541 		OUT_RING  (chan, sync->addr ^ 0x10);
542 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_SEMAPHORE_RELEASE, 1);
543 		OUT_RING  (chan, sync->data + 1);
544 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_SEMAPHORE_OFFSET, 2);
545 		OUT_RING  (chan, sync->addr);
546 		OUT_RING  (chan, sync->data);
547 	} else
548 	if (chan && nv_mclass(chan->object) < NVC0_CHANNEL_IND_CLASS) {
549 		u64 addr = nv84_fence_crtc(chan, head) + sync->addr;
550 		ret = RING_SPACE(chan, 12);
551 		if (ret)
552 			return ret;
553 
554 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1);
555 		OUT_RING  (chan, chan->vram);
556 		BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
557 		OUT_RING  (chan, upper_32_bits(addr ^ 0x10));
558 		OUT_RING  (chan, lower_32_bits(addr ^ 0x10));
559 		OUT_RING  (chan, sync->data + 1);
560 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
561 		BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
562 		OUT_RING  (chan, upper_32_bits(addr));
563 		OUT_RING  (chan, lower_32_bits(addr));
564 		OUT_RING  (chan, sync->data);
565 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL);
566 	} else
567 	if (chan) {
568 		u64 addr = nv84_fence_crtc(chan, head) + sync->addr;
569 		ret = RING_SPACE(chan, 10);
570 		if (ret)
571 			return ret;
572 
573 		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
574 		OUT_RING  (chan, upper_32_bits(addr ^ 0x10));
575 		OUT_RING  (chan, lower_32_bits(addr ^ 0x10));
576 		OUT_RING  (chan, sync->data + 1);
577 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG |
578 				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
579 		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
580 		OUT_RING  (chan, upper_32_bits(addr));
581 		OUT_RING  (chan, lower_32_bits(addr));
582 		OUT_RING  (chan, sync->data);
583 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL |
584 				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
585 	}
586 
587 	if (chan) {
588 		sync->addr ^= 0x10;
589 		sync->data++;
590 		FIRE_RING (chan);
591 	}
592 
593 	/* queue the flip */
594 	evo_mthd(push, 0x0100, 1);
595 	evo_data(push, 0xfffe0000);
596 	evo_mthd(push, 0x0084, 1);
597 	evo_data(push, swap_interval);
598 	if (!(swap_interval & 0x00000100)) {
599 		evo_mthd(push, 0x00e0, 1);
600 		evo_data(push, 0x40000000);
601 	}
602 	evo_mthd(push, 0x0088, 4);
603 	evo_data(push, sync->addr);
604 	evo_data(push, sync->data++);
605 	evo_data(push, sync->data);
606 	evo_data(push, NvEvoSync);
607 	evo_mthd(push, 0x00a0, 2);
608 	evo_data(push, 0x00000000);
609 	evo_data(push, 0x00000000);
610 	evo_mthd(push, 0x00c0, 1);
611 	evo_data(push, nv_fb->r_dma);
612 	evo_mthd(push, 0x0110, 2);
613 	evo_data(push, 0x00000000);
614 	evo_data(push, 0x00000000);
615 	if (nv50_vers(sync) < NVD0_DISP_SYNC_CLASS) {
616 		evo_mthd(push, 0x0800, 5);
617 		evo_data(push, nv_fb->nvbo->bo.offset >> 8);
618 		evo_data(push, 0);
619 		evo_data(push, (fb->height << 16) | fb->width);
620 		evo_data(push, nv_fb->r_pitch);
621 		evo_data(push, nv_fb->r_format);
622 	} else {
623 		evo_mthd(push, 0x0400, 5);
624 		evo_data(push, nv_fb->nvbo->bo.offset >> 8);
625 		evo_data(push, 0);
626 		evo_data(push, (fb->height << 16) | fb->width);
627 		evo_data(push, nv_fb->r_pitch);
628 		evo_data(push, nv_fb->r_format);
629 	}
630 	evo_mthd(push, 0x0080, 1);
631 	evo_data(push, 0x00000000);
632 	evo_kick(push, sync);
633 	return 0;
634 }
635 
636 /******************************************************************************
637  * CRTC
638  *****************************************************************************/
639 static int
nv50_crtc_set_dither(struct nouveau_crtc * nv_crtc,bool update)640 nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool update)
641 {
642 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
643 	struct nouveau_connector *nv_connector;
644 	struct drm_connector *connector;
645 	u32 *push, mode = 0x00;
646 
647 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
648 	connector = &nv_connector->base;
649 	if (nv_connector->dithering_mode == DITHERING_MODE_AUTO) {
650 		if (nv_crtc->base.fb->depth > connector->display_info.bpc * 3)
651 			mode = DITHERING_MODE_DYNAMIC2X2;
652 	} else {
653 		mode = nv_connector->dithering_mode;
654 	}
655 
656 	if (nv_connector->dithering_depth == DITHERING_DEPTH_AUTO) {
657 		if (connector->display_info.bpc >= 8)
658 			mode |= DITHERING_DEPTH_8BPC;
659 	} else {
660 		mode |= nv_connector->dithering_depth;
661 	}
662 
663 	push = evo_wait(mast, 4);
664 	if (push) {
665 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
666 			evo_mthd(push, 0x08a0 + (nv_crtc->index * 0x0400), 1);
667 			evo_data(push, mode);
668 		} else
669 		if (nv50_vers(mast) < NVE0_DISP_MAST_CLASS) {
670 			evo_mthd(push, 0x0490 + (nv_crtc->index * 0x0300), 1);
671 			evo_data(push, mode);
672 		} else {
673 			evo_mthd(push, 0x04a0 + (nv_crtc->index * 0x0300), 1);
674 			evo_data(push, mode);
675 		}
676 
677 		if (update) {
678 			evo_mthd(push, 0x0080, 1);
679 			evo_data(push, 0x00000000);
680 		}
681 		evo_kick(push, mast);
682 	}
683 
684 	return 0;
685 }
686 
687 static int
nv50_crtc_set_scale(struct nouveau_crtc * nv_crtc,bool update)688 nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update)
689 {
690 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
691 	struct drm_display_mode *omode, *umode = &nv_crtc->base.mode;
692 	struct drm_crtc *crtc = &nv_crtc->base;
693 	struct nouveau_connector *nv_connector;
694 	int mode = DRM_MODE_SCALE_NONE;
695 	u32 oX, oY, *push;
696 
697 	/* start off at the resolution we programmed the crtc for, this
698 	 * effectively handles NONE/FULL scaling
699 	 */
700 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
701 	if (nv_connector && nv_connector->native_mode)
702 		mode = nv_connector->scaling_mode;
703 
704 	if (mode != DRM_MODE_SCALE_NONE)
705 		omode = nv_connector->native_mode;
706 	else
707 		omode = umode;
708 
709 	oX = omode->hdisplay;
710 	oY = omode->vdisplay;
711 	if (omode->flags & DRM_MODE_FLAG_DBLSCAN)
712 		oY *= 2;
713 
714 	/* add overscan compensation if necessary, will keep the aspect
715 	 * ratio the same as the backend mode unless overridden by the
716 	 * user setting both hborder and vborder properties.
717 	 */
718 	if (nv_connector && ( nv_connector->underscan == UNDERSCAN_ON ||
719 			     (nv_connector->underscan == UNDERSCAN_AUTO &&
720 			      nv_connector->edid &&
721 			      drm_detect_hdmi_monitor(nv_connector->edid)))) {
722 		u32 bX = nv_connector->underscan_hborder;
723 		u32 bY = nv_connector->underscan_vborder;
724 		u32 aspect = (oY << 19) / oX;
725 
726 		if (bX) {
727 			oX -= (bX * 2);
728 			if (bY) oY -= (bY * 2);
729 			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
730 		} else {
731 			oX -= (oX >> 4) + 32;
732 			if (bY) oY -= (bY * 2);
733 			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
734 		}
735 	}
736 
737 	/* handle CENTER/ASPECT scaling, taking into account the areas
738 	 * removed already for overscan compensation
739 	 */
740 	switch (mode) {
741 	case DRM_MODE_SCALE_CENTER:
742 		oX = min((u32)umode->hdisplay, oX);
743 		oY = min((u32)umode->vdisplay, oY);
744 		/* fall-through */
745 	case DRM_MODE_SCALE_ASPECT:
746 		if (oY < oX) {
747 			u32 aspect = (umode->hdisplay << 19) / umode->vdisplay;
748 			oX = ((oY * aspect) + (aspect / 2)) >> 19;
749 		} else {
750 			u32 aspect = (umode->vdisplay << 19) / umode->hdisplay;
751 			oY = ((oX * aspect) + (aspect / 2)) >> 19;
752 		}
753 		break;
754 	default:
755 		break;
756 	}
757 
758 	push = evo_wait(mast, 8);
759 	if (push) {
760 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
761 			/*XXX: SCALE_CTRL_ACTIVE??? */
762 			evo_mthd(push, 0x08d8 + (nv_crtc->index * 0x400), 2);
763 			evo_data(push, (oY << 16) | oX);
764 			evo_data(push, (oY << 16) | oX);
765 			evo_mthd(push, 0x08a4 + (nv_crtc->index * 0x400), 1);
766 			evo_data(push, 0x00000000);
767 			evo_mthd(push, 0x08c8 + (nv_crtc->index * 0x400), 1);
768 			evo_data(push, umode->vdisplay << 16 | umode->hdisplay);
769 		} else {
770 			evo_mthd(push, 0x04c0 + (nv_crtc->index * 0x300), 3);
771 			evo_data(push, (oY << 16) | oX);
772 			evo_data(push, (oY << 16) | oX);
773 			evo_data(push, (oY << 16) | oX);
774 			evo_mthd(push, 0x0494 + (nv_crtc->index * 0x300), 1);
775 			evo_data(push, 0x00000000);
776 			evo_mthd(push, 0x04b8 + (nv_crtc->index * 0x300), 1);
777 			evo_data(push, umode->vdisplay << 16 | umode->hdisplay);
778 		}
779 
780 		evo_kick(push, mast);
781 
782 		if (update) {
783 			nv50_display_flip_stop(crtc);
784 			nv50_display_flip_next(crtc, crtc->fb, NULL, 1);
785 		}
786 	}
787 
788 	return 0;
789 }
790 
791 static int
nv50_crtc_set_color_vibrance(struct nouveau_crtc * nv_crtc,bool update)792 nv50_crtc_set_color_vibrance(struct nouveau_crtc *nv_crtc, bool update)
793 {
794 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
795 	u32 *push, hue, vib;
796 	int adj;
797 
798 	adj = (nv_crtc->color_vibrance > 0) ? 50 : 0;
799 	vib = ((nv_crtc->color_vibrance * 2047 + adj) / 100) & 0xfff;
800 	hue = ((nv_crtc->vibrant_hue * 2047) / 100) & 0xfff;
801 
802 	push = evo_wait(mast, 16);
803 	if (push) {
804 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
805 			evo_mthd(push, 0x08a8 + (nv_crtc->index * 0x400), 1);
806 			evo_data(push, (hue << 20) | (vib << 8));
807 		} else {
808 			evo_mthd(push, 0x0498 + (nv_crtc->index * 0x300), 1);
809 			evo_data(push, (hue << 20) | (vib << 8));
810 		}
811 
812 		if (update) {
813 			evo_mthd(push, 0x0080, 1);
814 			evo_data(push, 0x00000000);
815 		}
816 		evo_kick(push, mast);
817 	}
818 
819 	return 0;
820 }
821 
822 static int
nv50_crtc_set_image(struct nouveau_crtc * nv_crtc,struct drm_framebuffer * fb,int x,int y,bool update)823 nv50_crtc_set_image(struct nouveau_crtc *nv_crtc, struct drm_framebuffer *fb,
824 		    int x, int y, bool update)
825 {
826 	struct nouveau_framebuffer *nvfb = nouveau_framebuffer(fb);
827 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
828 	u32 *push;
829 
830 	push = evo_wait(mast, 16);
831 	if (push) {
832 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
833 			evo_mthd(push, 0x0860 + (nv_crtc->index * 0x400), 1);
834 			evo_data(push, nvfb->nvbo->bo.offset >> 8);
835 			evo_mthd(push, 0x0868 + (nv_crtc->index * 0x400), 3);
836 			evo_data(push, (fb->height << 16) | fb->width);
837 			evo_data(push, nvfb->r_pitch);
838 			evo_data(push, nvfb->r_format);
839 			evo_mthd(push, 0x08c0 + (nv_crtc->index * 0x400), 1);
840 			evo_data(push, (y << 16) | x);
841 			if (nv50_vers(mast) > NV50_DISP_MAST_CLASS) {
842 				evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
843 				evo_data(push, nvfb->r_dma);
844 			}
845 		} else {
846 			evo_mthd(push, 0x0460 + (nv_crtc->index * 0x300), 1);
847 			evo_data(push, nvfb->nvbo->bo.offset >> 8);
848 			evo_mthd(push, 0x0468 + (nv_crtc->index * 0x300), 4);
849 			evo_data(push, (fb->height << 16) | fb->width);
850 			evo_data(push, nvfb->r_pitch);
851 			evo_data(push, nvfb->r_format);
852 			evo_data(push, nvfb->r_dma);
853 			evo_mthd(push, 0x04b0 + (nv_crtc->index * 0x300), 1);
854 			evo_data(push, (y << 16) | x);
855 		}
856 
857 		if (update) {
858 			evo_mthd(push, 0x0080, 1);
859 			evo_data(push, 0x00000000);
860 		}
861 		evo_kick(push, mast);
862 	}
863 
864 	nv_crtc->fb.tile_flags = nvfb->r_dma;
865 	return 0;
866 }
867 
868 static void
nv50_crtc_cursor_show(struct nouveau_crtc * nv_crtc)869 nv50_crtc_cursor_show(struct nouveau_crtc *nv_crtc)
870 {
871 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
872 	u32 *push = evo_wait(mast, 16);
873 	if (push) {
874 		if (nv50_vers(mast) < NV84_DISP_MAST_CLASS) {
875 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 2);
876 			evo_data(push, 0x85000000);
877 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
878 		} else
879 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
880 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 2);
881 			evo_data(push, 0x85000000);
882 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
883 			evo_mthd(push, 0x089c + (nv_crtc->index * 0x400), 1);
884 			evo_data(push, NvEvoVRAM);
885 		} else {
886 			evo_mthd(push, 0x0480 + (nv_crtc->index * 0x300), 2);
887 			evo_data(push, 0x85000000);
888 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
889 			evo_mthd(push, 0x048c + (nv_crtc->index * 0x300), 1);
890 			evo_data(push, NvEvoVRAM);
891 		}
892 		evo_kick(push, mast);
893 	}
894 }
895 
896 static void
nv50_crtc_cursor_hide(struct nouveau_crtc * nv_crtc)897 nv50_crtc_cursor_hide(struct nouveau_crtc *nv_crtc)
898 {
899 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
900 	u32 *push = evo_wait(mast, 16);
901 	if (push) {
902 		if (nv50_vers(mast) < NV84_DISP_MAST_CLASS) {
903 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 1);
904 			evo_data(push, 0x05000000);
905 		} else
906 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
907 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 1);
908 			evo_data(push, 0x05000000);
909 			evo_mthd(push, 0x089c + (nv_crtc->index * 0x400), 1);
910 			evo_data(push, 0x00000000);
911 		} else {
912 			evo_mthd(push, 0x0480 + (nv_crtc->index * 0x300), 1);
913 			evo_data(push, 0x05000000);
914 			evo_mthd(push, 0x048c + (nv_crtc->index * 0x300), 1);
915 			evo_data(push, 0x00000000);
916 		}
917 		evo_kick(push, mast);
918 	}
919 }
920 
921 static void
nv50_crtc_cursor_show_hide(struct nouveau_crtc * nv_crtc,bool show,bool update)922 nv50_crtc_cursor_show_hide(struct nouveau_crtc *nv_crtc, bool show, bool update)
923 {
924 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
925 
926 	if (show)
927 		nv50_crtc_cursor_show(nv_crtc);
928 	else
929 		nv50_crtc_cursor_hide(nv_crtc);
930 
931 	if (update) {
932 		u32 *push = evo_wait(mast, 2);
933 		if (push) {
934 			evo_mthd(push, 0x0080, 1);
935 			evo_data(push, 0x00000000);
936 			evo_kick(push, mast);
937 		}
938 	}
939 }
940 
941 static void
nv50_crtc_dpms(struct drm_crtc * crtc,int mode)942 nv50_crtc_dpms(struct drm_crtc *crtc, int mode)
943 {
944 }
945 
946 static void
nv50_crtc_prepare(struct drm_crtc * crtc)947 nv50_crtc_prepare(struct drm_crtc *crtc)
948 {
949 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
950 	struct nv50_mast *mast = nv50_mast(crtc->dev);
951 	u32 *push;
952 
953 	nv50_display_flip_stop(crtc);
954 
955 	push = evo_wait(mast, 2);
956 	if (push) {
957 		if (nv50_vers(mast) < NV84_DISP_MAST_CLASS) {
958 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
959 			evo_data(push, 0x00000000);
960 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
961 			evo_data(push, 0x40000000);
962 		} else
963 		if (nv50_vers(mast) <  NVD0_DISP_MAST_CLASS) {
964 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
965 			evo_data(push, 0x00000000);
966 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
967 			evo_data(push, 0x40000000);
968 			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
969 			evo_data(push, 0x00000000);
970 		} else {
971 			evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
972 			evo_data(push, 0x00000000);
973 			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 1);
974 			evo_data(push, 0x03000000);
975 			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
976 			evo_data(push, 0x00000000);
977 		}
978 
979 		evo_kick(push, mast);
980 	}
981 
982 	nv50_crtc_cursor_show_hide(nv_crtc, false, false);
983 }
984 
985 static void
nv50_crtc_commit(struct drm_crtc * crtc)986 nv50_crtc_commit(struct drm_crtc *crtc)
987 {
988 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
989 	struct nv50_mast *mast = nv50_mast(crtc->dev);
990 	u32 *push;
991 
992 	push = evo_wait(mast, 32);
993 	if (push) {
994 		if (nv50_vers(mast) < NV84_DISP_MAST_CLASS) {
995 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
996 			evo_data(push, NvEvoVRAM_LP);
997 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
998 			evo_data(push, 0xc0000000);
999 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1000 		} else
1001 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
1002 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
1003 			evo_data(push, nv_crtc->fb.tile_flags);
1004 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
1005 			evo_data(push, 0xc0000000);
1006 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1007 			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
1008 			evo_data(push, NvEvoVRAM);
1009 		} else {
1010 			evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
1011 			evo_data(push, nv_crtc->fb.tile_flags);
1012 			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 4);
1013 			evo_data(push, 0x83000000);
1014 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1015 			evo_data(push, 0x00000000);
1016 			evo_data(push, 0x00000000);
1017 			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
1018 			evo_data(push, NvEvoVRAM);
1019 			evo_mthd(push, 0x0430 + (nv_crtc->index * 0x300), 1);
1020 			evo_data(push, 0xffffff00);
1021 		}
1022 
1023 		evo_kick(push, mast);
1024 	}
1025 
1026 	nv50_crtc_cursor_show_hide(nv_crtc, nv_crtc->cursor.visible, true);
1027 	nv50_display_flip_next(crtc, crtc->fb, NULL, 1);
1028 }
1029 
1030 static bool
nv50_crtc_mode_fixup(struct drm_crtc * crtc,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1031 nv50_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode,
1032 		     struct drm_display_mode *adjusted_mode)
1033 {
1034 	return true;
1035 }
1036 
1037 static int
nv50_crtc_swap_fbs(struct drm_crtc * crtc,struct drm_framebuffer * old_fb)1038 nv50_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb)
1039 {
1040 	struct nouveau_framebuffer *nvfb = nouveau_framebuffer(crtc->fb);
1041 	int ret;
1042 
1043 	ret = nouveau_bo_pin(nvfb->nvbo, TTM_PL_FLAG_VRAM);
1044 	if (ret)
1045 		return ret;
1046 
1047 	if (old_fb) {
1048 		nvfb = nouveau_framebuffer(old_fb);
1049 		nouveau_bo_unpin(nvfb->nvbo);
1050 	}
1051 
1052 	return 0;
1053 }
1054 
1055 static int
nv50_crtc_mode_set(struct drm_crtc * crtc,struct drm_display_mode * umode,struct drm_display_mode * mode,int x,int y,struct drm_framebuffer * old_fb)1056 nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
1057 		   struct drm_display_mode *mode, int x, int y,
1058 		   struct drm_framebuffer *old_fb)
1059 {
1060 	struct nv50_mast *mast = nv50_mast(crtc->dev);
1061 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1062 	struct nouveau_connector *nv_connector;
1063 	u32 ilace = (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 1;
1064 	u32 vscan = (mode->flags & DRM_MODE_FLAG_DBLSCAN) ? 2 : 1;
1065 	u32 hactive, hsynce, hbackp, hfrontp, hblanke, hblanks;
1066 	u32 vactive, vsynce, vbackp, vfrontp, vblanke, vblanks;
1067 	u32 vblan2e = 0, vblan2s = 1;
1068 	u32 *push;
1069 	int ret;
1070 
1071 	hactive = mode->htotal;
1072 	hsynce  = mode->hsync_end - mode->hsync_start - 1;
1073 	hbackp  = mode->htotal - mode->hsync_end;
1074 	hblanke = hsynce + hbackp;
1075 	hfrontp = mode->hsync_start - mode->hdisplay;
1076 	hblanks = mode->htotal - hfrontp - 1;
1077 
1078 	vactive = mode->vtotal * vscan / ilace;
1079 	vsynce  = ((mode->vsync_end - mode->vsync_start) * vscan / ilace) - 1;
1080 	vbackp  = (mode->vtotal - mode->vsync_end) * vscan / ilace;
1081 	vblanke = vsynce + vbackp;
1082 	vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace;
1083 	vblanks = vactive - vfrontp - 1;
1084 	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
1085 		vblan2e = vactive + vsynce + vbackp;
1086 		vblan2s = vblan2e + (mode->vdisplay * vscan / ilace);
1087 		vactive = (vactive * 2) + 1;
1088 	}
1089 
1090 	ret = nv50_crtc_swap_fbs(crtc, old_fb);
1091 	if (ret)
1092 		return ret;
1093 
1094 	push = evo_wait(mast, 64);
1095 	if (push) {
1096 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
1097 			evo_mthd(push, 0x0804 + (nv_crtc->index * 0x400), 2);
1098 			evo_data(push, 0x00800000 | mode->clock);
1099 			evo_data(push, (ilace == 2) ? 2 : 0);
1100 			evo_mthd(push, 0x0810 + (nv_crtc->index * 0x400), 6);
1101 			evo_data(push, 0x00000000);
1102 			evo_data(push, (vactive << 16) | hactive);
1103 			evo_data(push, ( vsynce << 16) | hsynce);
1104 			evo_data(push, (vblanke << 16) | hblanke);
1105 			evo_data(push, (vblanks << 16) | hblanks);
1106 			evo_data(push, (vblan2e << 16) | vblan2s);
1107 			evo_mthd(push, 0x082c + (nv_crtc->index * 0x400), 1);
1108 			evo_data(push, 0x00000000);
1109 			evo_mthd(push, 0x0900 + (nv_crtc->index * 0x400), 2);
1110 			evo_data(push, 0x00000311);
1111 			evo_data(push, 0x00000100);
1112 		} else {
1113 			evo_mthd(push, 0x0410 + (nv_crtc->index * 0x300), 6);
1114 			evo_data(push, 0x00000000);
1115 			evo_data(push, (vactive << 16) | hactive);
1116 			evo_data(push, ( vsynce << 16) | hsynce);
1117 			evo_data(push, (vblanke << 16) | hblanke);
1118 			evo_data(push, (vblanks << 16) | hblanks);
1119 			evo_data(push, (vblan2e << 16) | vblan2s);
1120 			evo_mthd(push, 0x042c + (nv_crtc->index * 0x300), 1);
1121 			evo_data(push, 0x00000000); /* ??? */
1122 			evo_mthd(push, 0x0450 + (nv_crtc->index * 0x300), 3);
1123 			evo_data(push, mode->clock * 1000);
1124 			evo_data(push, 0x00200000); /* ??? */
1125 			evo_data(push, mode->clock * 1000);
1126 			evo_mthd(push, 0x04d0 + (nv_crtc->index * 0x300), 2);
1127 			evo_data(push, 0x00000311);
1128 			evo_data(push, 0x00000100);
1129 		}
1130 
1131 		evo_kick(push, mast);
1132 	}
1133 
1134 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
1135 	nv50_crtc_set_dither(nv_crtc, false);
1136 	nv50_crtc_set_scale(nv_crtc, false);
1137 	nv50_crtc_set_color_vibrance(nv_crtc, false);
1138 	nv50_crtc_set_image(nv_crtc, crtc->fb, x, y, false);
1139 	return 0;
1140 }
1141 
1142 static int
nv50_crtc_mode_set_base(struct drm_crtc * crtc,int x,int y,struct drm_framebuffer * old_fb)1143 nv50_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
1144 			struct drm_framebuffer *old_fb)
1145 {
1146 	struct nouveau_drm *drm = nouveau_drm(crtc->dev);
1147 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1148 	int ret;
1149 
1150 	if (!crtc->fb) {
1151 		NV_DEBUG(drm, "No FB bound\n");
1152 		return 0;
1153 	}
1154 
1155 	ret = nv50_crtc_swap_fbs(crtc, old_fb);
1156 	if (ret)
1157 		return ret;
1158 
1159 	nv50_display_flip_stop(crtc);
1160 	nv50_crtc_set_image(nv_crtc, crtc->fb, x, y, true);
1161 	nv50_display_flip_next(crtc, crtc->fb, NULL, 1);
1162 	return 0;
1163 }
1164 
1165 static int
nv50_crtc_mode_set_base_atomic(struct drm_crtc * crtc,struct drm_framebuffer * fb,int x,int y,enum mode_set_atomic state)1166 nv50_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
1167 			       struct drm_framebuffer *fb, int x, int y,
1168 			       enum mode_set_atomic state)
1169 {
1170 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1171 	nv50_display_flip_stop(crtc);
1172 	nv50_crtc_set_image(nv_crtc, fb, x, y, true);
1173 	return 0;
1174 }
1175 
1176 static void
nv50_crtc_lut_load(struct drm_crtc * crtc)1177 nv50_crtc_lut_load(struct drm_crtc *crtc)
1178 {
1179 	struct nv50_disp *disp = nv50_disp(crtc->dev);
1180 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1181 	void __iomem *lut = nvbo_kmap_obj_iovirtual(nv_crtc->lut.nvbo);
1182 	int i;
1183 
1184 	for (i = 0; i < 256; i++) {
1185 		u16 r = nv_crtc->lut.r[i] >> 2;
1186 		u16 g = nv_crtc->lut.g[i] >> 2;
1187 		u16 b = nv_crtc->lut.b[i] >> 2;
1188 
1189 		if (nv_mclass(disp->core) < NVD0_DISP_CLASS) {
1190 			writew(r + 0x0000, lut + (i * 0x08) + 0);
1191 			writew(g + 0x0000, lut + (i * 0x08) + 2);
1192 			writew(b + 0x0000, lut + (i * 0x08) + 4);
1193 		} else {
1194 			writew(r + 0x6000, lut + (i * 0x20) + 0);
1195 			writew(g + 0x6000, lut + (i * 0x20) + 2);
1196 			writew(b + 0x6000, lut + (i * 0x20) + 4);
1197 		}
1198 	}
1199 }
1200 
1201 static int
nv50_crtc_cursor_set(struct drm_crtc * crtc,struct drm_file * file_priv,uint32_t handle,uint32_t width,uint32_t height)1202 nv50_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
1203 		     uint32_t handle, uint32_t width, uint32_t height)
1204 {
1205 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1206 	struct drm_device *dev = crtc->dev;
1207 	struct drm_gem_object *gem;
1208 	struct nouveau_bo *nvbo;
1209 	bool visible = (handle != 0);
1210 	int i, ret = 0;
1211 
1212 	if (visible) {
1213 		if (width != 64 || height != 64)
1214 			return -EINVAL;
1215 
1216 		gem = drm_gem_object_lookup(dev, file_priv, handle);
1217 		if (unlikely(!gem))
1218 			return -ENOENT;
1219 		nvbo = nouveau_gem_object(gem);
1220 
1221 		ret = nouveau_bo_map(nvbo);
1222 		if (ret == 0) {
1223 			for (i = 0; i < 64 * 64; i++) {
1224 				u32 v = nouveau_bo_rd32(nvbo, i);
1225 				nouveau_bo_wr32(nv_crtc->cursor.nvbo, i, v);
1226 			}
1227 			nouveau_bo_unmap(nvbo);
1228 		}
1229 
1230 		drm_gem_object_unreference_unlocked(gem);
1231 	}
1232 
1233 	if (visible != nv_crtc->cursor.visible) {
1234 		nv50_crtc_cursor_show_hide(nv_crtc, visible, true);
1235 		nv_crtc->cursor.visible = visible;
1236 	}
1237 
1238 	return ret;
1239 }
1240 
1241 static int
nv50_crtc_cursor_move(struct drm_crtc * crtc,int x,int y)1242 nv50_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
1243 {
1244 	struct nv50_curs *curs = nv50_curs(crtc);
1245 	struct nv50_chan *chan = nv50_chan(curs);
1246 	nv_wo32(chan->user, 0x0084, (y << 16) | (x & 0xffff));
1247 	nv_wo32(chan->user, 0x0080, 0x00000000);
1248 	return 0;
1249 }
1250 
1251 static void
nv50_crtc_gamma_set(struct drm_crtc * crtc,u16 * r,u16 * g,u16 * b,uint32_t start,uint32_t size)1252 nv50_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
1253 		    uint32_t start, uint32_t size)
1254 {
1255 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1256 	u32 end = max(start + size, (u32)256);
1257 	u32 i;
1258 
1259 	for (i = start; i < end; i++) {
1260 		nv_crtc->lut.r[i] = r[i];
1261 		nv_crtc->lut.g[i] = g[i];
1262 		nv_crtc->lut.b[i] = b[i];
1263 	}
1264 
1265 	nv50_crtc_lut_load(crtc);
1266 }
1267 
1268 static void
nv50_crtc_destroy(struct drm_crtc * crtc)1269 nv50_crtc_destroy(struct drm_crtc *crtc)
1270 {
1271 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1272 	struct nv50_disp *disp = nv50_disp(crtc->dev);
1273 	struct nv50_head *head = nv50_head(crtc);
1274 	nv50_dmac_destroy(disp->core, &head->ovly.base);
1275 	nv50_pioc_destroy(disp->core, &head->oimm.base);
1276 	nv50_dmac_destroy(disp->core, &head->sync.base);
1277 	nv50_pioc_destroy(disp->core, &head->curs.base);
1278 	nouveau_bo_unmap(nv_crtc->cursor.nvbo);
1279 	if (nv_crtc->cursor.nvbo)
1280 		nouveau_bo_unpin(nv_crtc->cursor.nvbo);
1281 	nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
1282 	nouveau_bo_unmap(nv_crtc->lut.nvbo);
1283 	if (nv_crtc->lut.nvbo)
1284 		nouveau_bo_unpin(nv_crtc->lut.nvbo);
1285 	nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
1286 	drm_crtc_cleanup(crtc);
1287 	kfree(crtc);
1288 }
1289 
1290 static const struct drm_crtc_helper_funcs nv50_crtc_hfunc = {
1291 	.dpms = nv50_crtc_dpms,
1292 	.prepare = nv50_crtc_prepare,
1293 	.commit = nv50_crtc_commit,
1294 	.mode_fixup = nv50_crtc_mode_fixup,
1295 	.mode_set = nv50_crtc_mode_set,
1296 	.mode_set_base = nv50_crtc_mode_set_base,
1297 	.mode_set_base_atomic = nv50_crtc_mode_set_base_atomic,
1298 	.load_lut = nv50_crtc_lut_load,
1299 };
1300 
1301 static const struct drm_crtc_funcs nv50_crtc_func = {
1302 	.cursor_set = nv50_crtc_cursor_set,
1303 	.cursor_move = nv50_crtc_cursor_move,
1304 	.gamma_set = nv50_crtc_gamma_set,
1305 	.set_config = drm_crtc_helper_set_config,
1306 	.destroy = nv50_crtc_destroy,
1307 	.page_flip = nouveau_crtc_page_flip,
1308 };
1309 
1310 static void
nv50_cursor_set_pos(struct nouveau_crtc * nv_crtc,int x,int y)1311 nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
1312 {
1313 }
1314 
1315 static void
nv50_cursor_set_offset(struct nouveau_crtc * nv_crtc,uint32_t offset)1316 nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
1317 {
1318 }
1319 
1320 static int
nv50_crtc_create(struct drm_device * dev,struct nouveau_object * core,int index)1321 nv50_crtc_create(struct drm_device *dev, struct nouveau_object *core, int index)
1322 {
1323 	struct nv50_disp *disp = nv50_disp(dev);
1324 	struct nv50_head *head;
1325 	struct drm_crtc *crtc;
1326 	int ret, i;
1327 
1328 	head = kzalloc(sizeof(*head), GFP_KERNEL);
1329 	if (!head)
1330 		return -ENOMEM;
1331 
1332 	head->base.index = index;
1333 	head->base.set_dither = nv50_crtc_set_dither;
1334 	head->base.set_scale = nv50_crtc_set_scale;
1335 	head->base.set_color_vibrance = nv50_crtc_set_color_vibrance;
1336 	head->base.color_vibrance = 50;
1337 	head->base.vibrant_hue = 0;
1338 	head->base.cursor.set_offset = nv50_cursor_set_offset;
1339 	head->base.cursor.set_pos = nv50_cursor_set_pos;
1340 	for (i = 0; i < 256; i++) {
1341 		head->base.lut.r[i] = i << 8;
1342 		head->base.lut.g[i] = i << 8;
1343 		head->base.lut.b[i] = i << 8;
1344 	}
1345 
1346 	crtc = &head->base.base;
1347 	drm_crtc_init(dev, crtc, &nv50_crtc_func);
1348 	drm_crtc_helper_add(crtc, &nv50_crtc_hfunc);
1349 	drm_mode_crtc_set_gamma_size(crtc, 256);
1350 
1351 	ret = nouveau_bo_new(dev, 8192, 0x100, TTM_PL_FLAG_VRAM,
1352 			     0, 0x0000, NULL, &head->base.lut.nvbo);
1353 	if (!ret) {
1354 		ret = nouveau_bo_pin(head->base.lut.nvbo, TTM_PL_FLAG_VRAM);
1355 		if (!ret) {
1356 			ret = nouveau_bo_map(head->base.lut.nvbo);
1357 			if (ret)
1358 				nouveau_bo_unpin(head->base.lut.nvbo);
1359 		}
1360 		if (ret)
1361 			nouveau_bo_ref(NULL, &head->base.lut.nvbo);
1362 	}
1363 
1364 	if (ret)
1365 		goto out;
1366 
1367 	nv50_crtc_lut_load(crtc);
1368 
1369 	/* allocate cursor resources */
1370 	ret = nv50_pioc_create(disp->core, NV50_DISP_CURS_CLASS, index,
1371 			      &(struct nv50_display_curs_class) {
1372 					.head = index,
1373 			      }, sizeof(struct nv50_display_curs_class),
1374 			      &head->curs.base);
1375 	if (ret)
1376 		goto out;
1377 
1378 	ret = nouveau_bo_new(dev, 64 * 64 * 4, 0x100, TTM_PL_FLAG_VRAM,
1379 			     0, 0x0000, NULL, &head->base.cursor.nvbo);
1380 	if (!ret) {
1381 		ret = nouveau_bo_pin(head->base.cursor.nvbo, TTM_PL_FLAG_VRAM);
1382 		if (!ret) {
1383 			ret = nouveau_bo_map(head->base.cursor.nvbo);
1384 			if (ret)
1385 				nouveau_bo_unpin(head->base.lut.nvbo);
1386 		}
1387 		if (ret)
1388 			nouveau_bo_ref(NULL, &head->base.cursor.nvbo);
1389 	}
1390 
1391 	if (ret)
1392 		goto out;
1393 
1394 	/* allocate page flip / sync resources */
1395 	ret = nv50_dmac_create(disp->core, NV50_DISP_SYNC_CLASS, index,
1396 			      &(struct nv50_display_sync_class) {
1397 					.pushbuf = EVO_PUSH_HANDLE(SYNC, index),
1398 					.head = index,
1399 			      }, sizeof(struct nv50_display_sync_class),
1400 			      disp->sync->bo.offset, &head->sync.base);
1401 	if (ret)
1402 		goto out;
1403 
1404 	head->sync.addr = EVO_FLIP_SEM0(index);
1405 	head->sync.data = 0x00000000;
1406 
1407 	/* allocate overlay resources */
1408 	ret = nv50_pioc_create(disp->core, NV50_DISP_OIMM_CLASS, index,
1409 			      &(struct nv50_display_oimm_class) {
1410 					.head = index,
1411 			      }, sizeof(struct nv50_display_oimm_class),
1412 			      &head->oimm.base);
1413 	if (ret)
1414 		goto out;
1415 
1416 	ret = nv50_dmac_create(disp->core, NV50_DISP_OVLY_CLASS, index,
1417 			      &(struct nv50_display_ovly_class) {
1418 					.pushbuf = EVO_PUSH_HANDLE(OVLY, index),
1419 					.head = index,
1420 			      }, sizeof(struct nv50_display_ovly_class),
1421 			      disp->sync->bo.offset, &head->ovly.base);
1422 	if (ret)
1423 		goto out;
1424 
1425 out:
1426 	if (ret)
1427 		nv50_crtc_destroy(crtc);
1428 	return ret;
1429 }
1430 
1431 /******************************************************************************
1432  * DAC
1433  *****************************************************************************/
1434 static void
nv50_dac_dpms(struct drm_encoder * encoder,int mode)1435 nv50_dac_dpms(struct drm_encoder *encoder, int mode)
1436 {
1437 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1438 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1439 	int or = nv_encoder->or;
1440 	u32 dpms_ctrl;
1441 
1442 	dpms_ctrl = 0x00000000;
1443 	if (mode == DRM_MODE_DPMS_STANDBY || mode == DRM_MODE_DPMS_OFF)
1444 		dpms_ctrl |= 0x00000001;
1445 	if (mode == DRM_MODE_DPMS_SUSPEND || mode == DRM_MODE_DPMS_OFF)
1446 		dpms_ctrl |= 0x00000004;
1447 
1448 	nv_call(disp->core, NV50_DISP_DAC_PWR + or, dpms_ctrl);
1449 }
1450 
1451 static bool
nv50_dac_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1452 nv50_dac_mode_fixup(struct drm_encoder *encoder,
1453 		    const struct drm_display_mode *mode,
1454 		    struct drm_display_mode *adjusted_mode)
1455 {
1456 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1457 	struct nouveau_connector *nv_connector;
1458 
1459 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1460 	if (nv_connector && nv_connector->native_mode) {
1461 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
1462 			int id = adjusted_mode->base.id;
1463 			*adjusted_mode = *nv_connector->native_mode;
1464 			adjusted_mode->base.id = id;
1465 		}
1466 	}
1467 
1468 	return true;
1469 }
1470 
1471 static void
nv50_dac_commit(struct drm_encoder * encoder)1472 nv50_dac_commit(struct drm_encoder *encoder)
1473 {
1474 }
1475 
1476 static void
nv50_dac_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1477 nv50_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
1478 		  struct drm_display_mode *adjusted_mode)
1479 {
1480 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1481 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1482 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1483 	u32 *push;
1484 
1485 	nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON);
1486 
1487 	push = evo_wait(mast, 8);
1488 	if (push) {
1489 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
1490 			u32 syncs = 0x00000000;
1491 
1492 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1493 				syncs |= 0x00000001;
1494 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1495 				syncs |= 0x00000002;
1496 
1497 			evo_mthd(push, 0x0400 + (nv_encoder->or * 0x080), 2);
1498 			evo_data(push, 1 << nv_crtc->index);
1499 			evo_data(push, syncs);
1500 		} else {
1501 			u32 magic = 0x31ec6000 | (nv_crtc->index << 25);
1502 			u32 syncs = 0x00000001;
1503 
1504 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1505 				syncs |= 0x00000008;
1506 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1507 				syncs |= 0x00000010;
1508 
1509 			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
1510 				magic |= 0x00000001;
1511 
1512 			evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
1513 			evo_data(push, syncs);
1514 			evo_data(push, magic);
1515 			evo_mthd(push, 0x0180 + (nv_encoder->or * 0x020), 1);
1516 			evo_data(push, 1 << nv_crtc->index);
1517 		}
1518 
1519 		evo_kick(push, mast);
1520 	}
1521 
1522 	nv_encoder->crtc = encoder->crtc;
1523 }
1524 
1525 static void
nv50_dac_disconnect(struct drm_encoder * encoder)1526 nv50_dac_disconnect(struct drm_encoder *encoder)
1527 {
1528 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1529 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1530 	const int or = nv_encoder->or;
1531 	u32 *push;
1532 
1533 	if (nv_encoder->crtc) {
1534 		nv50_crtc_prepare(nv_encoder->crtc);
1535 
1536 		push = evo_wait(mast, 4);
1537 		if (push) {
1538 			if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
1539 				evo_mthd(push, 0x0400 + (or * 0x080), 1);
1540 				evo_data(push, 0x00000000);
1541 			} else {
1542 				evo_mthd(push, 0x0180 + (or * 0x020), 1);
1543 				evo_data(push, 0x00000000);
1544 			}
1545 			evo_kick(push, mast);
1546 		}
1547 	}
1548 
1549 	nv_encoder->crtc = NULL;
1550 }
1551 
1552 static enum drm_connector_status
nv50_dac_detect(struct drm_encoder * encoder,struct drm_connector * connector)1553 nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector)
1554 {
1555 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1556 	int ret, or = nouveau_encoder(encoder)->or;
1557 	u32 load = nouveau_drm(encoder->dev)->vbios.dactestval;
1558 	if (load == 0)
1559 		load = 340;
1560 
1561 	ret = nv_exec(disp->core, NV50_DISP_DAC_LOAD + or, &load, sizeof(load));
1562 	if (ret || load != 7)
1563 		return connector_status_disconnected;
1564 
1565 	return connector_status_connected;
1566 }
1567 
1568 static void
nv50_dac_destroy(struct drm_encoder * encoder)1569 nv50_dac_destroy(struct drm_encoder *encoder)
1570 {
1571 	drm_encoder_cleanup(encoder);
1572 	kfree(encoder);
1573 }
1574 
1575 static const struct drm_encoder_helper_funcs nv50_dac_hfunc = {
1576 	.dpms = nv50_dac_dpms,
1577 	.mode_fixup = nv50_dac_mode_fixup,
1578 	.prepare = nv50_dac_disconnect,
1579 	.commit = nv50_dac_commit,
1580 	.mode_set = nv50_dac_mode_set,
1581 	.disable = nv50_dac_disconnect,
1582 	.get_crtc = nv50_display_crtc_get,
1583 	.detect = nv50_dac_detect
1584 };
1585 
1586 static const struct drm_encoder_funcs nv50_dac_func = {
1587 	.destroy = nv50_dac_destroy,
1588 };
1589 
1590 static int
nv50_dac_create(struct drm_connector * connector,struct dcb_output * dcbe)1591 nv50_dac_create(struct drm_connector *connector, struct dcb_output *dcbe)
1592 {
1593 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
1594 	struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
1595 	struct nouveau_encoder *nv_encoder;
1596 	struct drm_encoder *encoder;
1597 	int type = DRM_MODE_ENCODER_DAC;
1598 
1599 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
1600 	if (!nv_encoder)
1601 		return -ENOMEM;
1602 	nv_encoder->dcb = dcbe;
1603 	nv_encoder->or = ffs(dcbe->or) - 1;
1604 	nv_encoder->i2c = i2c->find(i2c, dcbe->i2c_index);
1605 
1606 	encoder = to_drm_encoder(nv_encoder);
1607 	encoder->possible_crtcs = dcbe->heads;
1608 	encoder->possible_clones = 0;
1609 	drm_encoder_init(connector->dev, encoder, &nv50_dac_func, type);
1610 	drm_encoder_helper_add(encoder, &nv50_dac_hfunc);
1611 
1612 	drm_mode_connector_attach_encoder(connector, encoder);
1613 	return 0;
1614 }
1615 
1616 /******************************************************************************
1617  * Audio
1618  *****************************************************************************/
1619 static void
nv50_audio_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode)1620 nv50_audio_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
1621 {
1622 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1623 	struct nouveau_connector *nv_connector;
1624 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1625 
1626 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1627 	if (!drm_detect_monitor_audio(nv_connector->edid))
1628 		return;
1629 
1630 	drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
1631 
1632 	nv_exec(disp->core, NVA3_DISP_SOR_HDA_ELD + nv_encoder->or,
1633 			    nv_connector->base.eld,
1634 			    nv_connector->base.eld[2] * 4);
1635 }
1636 
1637 static void
nv50_audio_disconnect(struct drm_encoder * encoder)1638 nv50_audio_disconnect(struct drm_encoder *encoder)
1639 {
1640 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1641 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1642 
1643 	nv_exec(disp->core, NVA3_DISP_SOR_HDA_ELD + nv_encoder->or, NULL, 0);
1644 }
1645 
1646 /******************************************************************************
1647  * HDMI
1648  *****************************************************************************/
1649 static void
nv50_hdmi_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode)1650 nv50_hdmi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
1651 {
1652 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1653 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1654 	struct nouveau_connector *nv_connector;
1655 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1656 	const u32 moff = (nv_crtc->index << 3) | nv_encoder->or;
1657 	u32 rekey = 56; /* binary driver, and tegra constant */
1658 	u32 max_ac_packet;
1659 
1660 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1661 	if (!drm_detect_hdmi_monitor(nv_connector->edid))
1662 		return;
1663 
1664 	max_ac_packet  = mode->htotal - mode->hdisplay;
1665 	max_ac_packet -= rekey;
1666 	max_ac_packet -= 18; /* constant from tegra */
1667 	max_ac_packet /= 32;
1668 
1669 	nv_call(disp->core, NV84_DISP_SOR_HDMI_PWR + moff,
1670 			    NV84_DISP_SOR_HDMI_PWR_STATE_ON |
1671 			    (max_ac_packet << 16) | rekey);
1672 
1673 	nv50_audio_mode_set(encoder, mode);
1674 }
1675 
1676 static void
nv50_hdmi_disconnect(struct drm_encoder * encoder)1677 nv50_hdmi_disconnect(struct drm_encoder *encoder)
1678 {
1679 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1680 	struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
1681 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1682 	const u32 moff = (nv_crtc->index << 3) | nv_encoder->or;
1683 
1684 	nv50_audio_disconnect(encoder);
1685 
1686 	nv_call(disp->core, NV84_DISP_SOR_HDMI_PWR + moff, 0x00000000);
1687 }
1688 
1689 /******************************************************************************
1690  * SOR
1691  *****************************************************************************/
1692 static void
nv50_sor_dpms(struct drm_encoder * encoder,int mode)1693 nv50_sor_dpms(struct drm_encoder *encoder, int mode)
1694 {
1695 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1696 	struct drm_device *dev = encoder->dev;
1697 	struct nv50_disp *disp = nv50_disp(dev);
1698 	struct drm_encoder *partner;
1699 	int or = nv_encoder->or;
1700 
1701 	nv_encoder->last_dpms = mode;
1702 
1703 	list_for_each_entry(partner, &dev->mode_config.encoder_list, head) {
1704 		struct nouveau_encoder *nv_partner = nouveau_encoder(partner);
1705 
1706 		if (partner->encoder_type != DRM_MODE_ENCODER_TMDS)
1707 			continue;
1708 
1709 		if (nv_partner != nv_encoder &&
1710 		    nv_partner->dcb->or == nv_encoder->dcb->or) {
1711 			if (nv_partner->last_dpms == DRM_MODE_DPMS_ON)
1712 				return;
1713 			break;
1714 		}
1715 	}
1716 
1717 	nv_call(disp->core, NV50_DISP_SOR_PWR + or, (mode == DRM_MODE_DPMS_ON));
1718 }
1719 
1720 static bool
nv50_sor_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1721 nv50_sor_mode_fixup(struct drm_encoder *encoder,
1722 		    const struct drm_display_mode *mode,
1723 		    struct drm_display_mode *adjusted_mode)
1724 {
1725 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1726 	struct nouveau_connector *nv_connector;
1727 
1728 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1729 	if (nv_connector && nv_connector->native_mode) {
1730 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
1731 			int id = adjusted_mode->base.id;
1732 			*adjusted_mode = *nv_connector->native_mode;
1733 			adjusted_mode->base.id = id;
1734 		}
1735 	}
1736 
1737 	return true;
1738 }
1739 
1740 static void
nv50_sor_disconnect(struct drm_encoder * encoder)1741 nv50_sor_disconnect(struct drm_encoder *encoder)
1742 {
1743 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1744 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1745 	const int or = nv_encoder->or;
1746 	u32 *push;
1747 
1748 	if (nv_encoder->crtc) {
1749 		nv50_crtc_prepare(nv_encoder->crtc);
1750 
1751 		push = evo_wait(mast, 4);
1752 		if (push) {
1753 			if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
1754 				evo_mthd(push, 0x0600 + (or * 0x40), 1);
1755 				evo_data(push, 0x00000000);
1756 			} else {
1757 				evo_mthd(push, 0x0200 + (or * 0x20), 1);
1758 				evo_data(push, 0x00000000);
1759 			}
1760 			evo_kick(push, mast);
1761 		}
1762 
1763 		nv50_hdmi_disconnect(encoder);
1764 	}
1765 
1766 	nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
1767 	nv_encoder->crtc = NULL;
1768 }
1769 
1770 static void
nv50_sor_commit(struct drm_encoder * encoder)1771 nv50_sor_commit(struct drm_encoder *encoder)
1772 {
1773 }
1774 
1775 static void
nv50_sor_mode_set(struct drm_encoder * encoder,struct drm_display_mode * umode,struct drm_display_mode * mode)1776 nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
1777 		  struct drm_display_mode *mode)
1778 {
1779 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1780 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1781 	struct drm_device *dev = encoder->dev;
1782 	struct nouveau_drm *drm = nouveau_drm(dev);
1783 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1784 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1785 	struct nouveau_connector *nv_connector;
1786 	struct nvbios *bios = &drm->vbios;
1787 	u32 *push, lvds = 0;
1788 	u8 owner = 1 << nv_crtc->index;
1789 	u8 proto = 0xf;
1790 	u8 depth = 0x0;
1791 
1792 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1793 	switch (nv_encoder->dcb->type) {
1794 	case DCB_OUTPUT_TMDS:
1795 		if (nv_encoder->dcb->sorconf.link & 1) {
1796 			if (mode->clock < 165000)
1797 				proto = 0x1;
1798 			else
1799 				proto = 0x5;
1800 		} else {
1801 			proto = 0x2;
1802 		}
1803 
1804 		nv50_hdmi_mode_set(encoder, mode);
1805 		break;
1806 	case DCB_OUTPUT_LVDS:
1807 		proto = 0x0;
1808 
1809 		if (bios->fp_no_ddc) {
1810 			if (bios->fp.dual_link)
1811 				lvds |= 0x0100;
1812 			if (bios->fp.if_is_24bit)
1813 				lvds |= 0x0200;
1814 		} else {
1815 			if (nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
1816 				if (((u8 *)nv_connector->edid)[121] == 2)
1817 					lvds |= 0x0100;
1818 			} else
1819 			if (mode->clock >= bios->fp.duallink_transition_clk) {
1820 				lvds |= 0x0100;
1821 			}
1822 
1823 			if (lvds & 0x0100) {
1824 				if (bios->fp.strapless_is_24bit & 2)
1825 					lvds |= 0x0200;
1826 			} else {
1827 				if (bios->fp.strapless_is_24bit & 1)
1828 					lvds |= 0x0200;
1829 			}
1830 
1831 			if (nv_connector->base.display_info.bpc == 8)
1832 				lvds |= 0x0200;
1833 		}
1834 
1835 		nv_call(disp->core, NV50_DISP_SOR_LVDS_SCRIPT + nv_encoder->or, lvds);
1836 		break;
1837 	case DCB_OUTPUT_DP:
1838 		if (nv_connector->base.display_info.bpc == 6) {
1839 			nv_encoder->dp.datarate = mode->clock * 18 / 8;
1840 			depth = 0x2;
1841 		} else
1842 		if (nv_connector->base.display_info.bpc == 8) {
1843 			nv_encoder->dp.datarate = mode->clock * 24 / 8;
1844 			depth = 0x5;
1845 		} else {
1846 			nv_encoder->dp.datarate = mode->clock * 30 / 8;
1847 			depth = 0x6;
1848 		}
1849 
1850 		if (nv_encoder->dcb->sorconf.link & 1)
1851 			proto = 0x8;
1852 		else
1853 			proto = 0x9;
1854 		break;
1855 	default:
1856 		BUG_ON(1);
1857 		break;
1858 	}
1859 
1860 	nv50_sor_dpms(encoder, DRM_MODE_DPMS_ON);
1861 
1862 	push = evo_wait(nv50_mast(dev), 8);
1863 	if (push) {
1864 		if (nv50_vers(mast) < NVD0_DISP_CLASS) {
1865 			u32 ctrl = (depth << 16) | (proto << 8) | owner;
1866 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1867 				ctrl |= 0x00001000;
1868 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1869 				ctrl |= 0x00002000;
1870 			evo_mthd(push, 0x0600 + (nv_encoder->or * 0x040), 1);
1871 			evo_data(push, ctrl);
1872 		} else {
1873 			u32 magic = 0x31ec6000 | (nv_crtc->index << 25);
1874 			u32 syncs = 0x00000001;
1875 
1876 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1877 				syncs |= 0x00000008;
1878 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1879 				syncs |= 0x00000010;
1880 
1881 			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
1882 				magic |= 0x00000001;
1883 
1884 			evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
1885 			evo_data(push, syncs | (depth << 6));
1886 			evo_data(push, magic);
1887 			evo_mthd(push, 0x0200 + (nv_encoder->or * 0x020), 1);
1888 			evo_data(push, owner | (proto << 8));
1889 		}
1890 
1891 		evo_kick(push, mast);
1892 	}
1893 
1894 	nv_encoder->crtc = encoder->crtc;
1895 }
1896 
1897 static void
nv50_sor_destroy(struct drm_encoder * encoder)1898 nv50_sor_destroy(struct drm_encoder *encoder)
1899 {
1900 	drm_encoder_cleanup(encoder);
1901 	kfree(encoder);
1902 }
1903 
1904 static const struct drm_encoder_helper_funcs nv50_sor_hfunc = {
1905 	.dpms = nv50_sor_dpms,
1906 	.mode_fixup = nv50_sor_mode_fixup,
1907 	.prepare = nv50_sor_disconnect,
1908 	.commit = nv50_sor_commit,
1909 	.mode_set = nv50_sor_mode_set,
1910 	.disable = nv50_sor_disconnect,
1911 	.get_crtc = nv50_display_crtc_get,
1912 };
1913 
1914 static const struct drm_encoder_funcs nv50_sor_func = {
1915 	.destroy = nv50_sor_destroy,
1916 };
1917 
1918 static int
nv50_sor_create(struct drm_connector * connector,struct dcb_output * dcbe)1919 nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
1920 {
1921 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
1922 	struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
1923 	struct nouveau_encoder *nv_encoder;
1924 	struct drm_encoder *encoder;
1925 	int type;
1926 
1927 	switch (dcbe->type) {
1928 	case DCB_OUTPUT_LVDS: type = DRM_MODE_ENCODER_LVDS; break;
1929 	case DCB_OUTPUT_TMDS:
1930 	case DCB_OUTPUT_DP:
1931 	default:
1932 		type = DRM_MODE_ENCODER_TMDS;
1933 		break;
1934 	}
1935 
1936 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
1937 	if (!nv_encoder)
1938 		return -ENOMEM;
1939 	nv_encoder->dcb = dcbe;
1940 	nv_encoder->or = ffs(dcbe->or) - 1;
1941 	nv_encoder->i2c = i2c->find(i2c, dcbe->i2c_index);
1942 	nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
1943 
1944 	encoder = to_drm_encoder(nv_encoder);
1945 	encoder->possible_crtcs = dcbe->heads;
1946 	encoder->possible_clones = 0;
1947 	drm_encoder_init(connector->dev, encoder, &nv50_sor_func, type);
1948 	drm_encoder_helper_add(encoder, &nv50_sor_hfunc);
1949 
1950 	drm_mode_connector_attach_encoder(connector, encoder);
1951 	return 0;
1952 }
1953 
1954 /******************************************************************************
1955  * PIOR
1956  *****************************************************************************/
1957 
1958 static void
nv50_pior_dpms(struct drm_encoder * encoder,int mode)1959 nv50_pior_dpms(struct drm_encoder *encoder, int mode)
1960 {
1961 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1962 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1963 	u32 mthd = (nv_encoder->dcb->type << 12) | nv_encoder->or;
1964 	u32 ctrl = (mode == DRM_MODE_DPMS_ON);
1965 	nv_call(disp->core, NV50_DISP_PIOR_PWR + mthd, ctrl);
1966 }
1967 
1968 static bool
nv50_pior_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1969 nv50_pior_mode_fixup(struct drm_encoder *encoder,
1970 		     const struct drm_display_mode *mode,
1971 		     struct drm_display_mode *adjusted_mode)
1972 {
1973 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1974 	struct nouveau_connector *nv_connector;
1975 
1976 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1977 	if (nv_connector && nv_connector->native_mode) {
1978 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
1979 			int id = adjusted_mode->base.id;
1980 			*adjusted_mode = *nv_connector->native_mode;
1981 			adjusted_mode->base.id = id;
1982 		}
1983 	}
1984 
1985 	adjusted_mode->clock *= 2;
1986 	return true;
1987 }
1988 
1989 static void
nv50_pior_commit(struct drm_encoder * encoder)1990 nv50_pior_commit(struct drm_encoder *encoder)
1991 {
1992 }
1993 
1994 static void
nv50_pior_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1995 nv50_pior_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
1996 		   struct drm_display_mode *adjusted_mode)
1997 {
1998 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1999 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2000 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
2001 	struct nouveau_connector *nv_connector;
2002 	u8 owner = 1 << nv_crtc->index;
2003 	u8 proto, depth;
2004 	u32 *push;
2005 
2006 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
2007 	switch (nv_connector->base.display_info.bpc) {
2008 	case 10: depth = 0x6; break;
2009 	case  8: depth = 0x5; break;
2010 	case  6: depth = 0x2; break;
2011 	default: depth = 0x0; break;
2012 	}
2013 
2014 	switch (nv_encoder->dcb->type) {
2015 	case DCB_OUTPUT_TMDS:
2016 	case DCB_OUTPUT_DP:
2017 		proto = 0x0;
2018 		break;
2019 	default:
2020 		BUG_ON(1);
2021 		break;
2022 	}
2023 
2024 	nv50_pior_dpms(encoder, DRM_MODE_DPMS_ON);
2025 
2026 	push = evo_wait(mast, 8);
2027 	if (push) {
2028 		if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
2029 			u32 ctrl = (depth << 16) | (proto << 8) | owner;
2030 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2031 				ctrl |= 0x00001000;
2032 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2033 				ctrl |= 0x00002000;
2034 			evo_mthd(push, 0x0700 + (nv_encoder->or * 0x040), 1);
2035 			evo_data(push, ctrl);
2036 		}
2037 
2038 		evo_kick(push, mast);
2039 	}
2040 
2041 	nv_encoder->crtc = encoder->crtc;
2042 }
2043 
2044 static void
nv50_pior_disconnect(struct drm_encoder * encoder)2045 nv50_pior_disconnect(struct drm_encoder *encoder)
2046 {
2047 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2048 	struct nv50_mast *mast = nv50_mast(encoder->dev);
2049 	const int or = nv_encoder->or;
2050 	u32 *push;
2051 
2052 	if (nv_encoder->crtc) {
2053 		nv50_crtc_prepare(nv_encoder->crtc);
2054 
2055 		push = evo_wait(mast, 4);
2056 		if (push) {
2057 			if (nv50_vers(mast) < NVD0_DISP_MAST_CLASS) {
2058 				evo_mthd(push, 0x0700 + (or * 0x040), 1);
2059 				evo_data(push, 0x00000000);
2060 			}
2061 			evo_kick(push, mast);
2062 		}
2063 	}
2064 
2065 	nv_encoder->crtc = NULL;
2066 }
2067 
2068 static void
nv50_pior_destroy(struct drm_encoder * encoder)2069 nv50_pior_destroy(struct drm_encoder *encoder)
2070 {
2071 	drm_encoder_cleanup(encoder);
2072 	kfree(encoder);
2073 }
2074 
2075 static const struct drm_encoder_helper_funcs nv50_pior_hfunc = {
2076 	.dpms = nv50_pior_dpms,
2077 	.mode_fixup = nv50_pior_mode_fixup,
2078 	.prepare = nv50_pior_disconnect,
2079 	.commit = nv50_pior_commit,
2080 	.mode_set = nv50_pior_mode_set,
2081 	.disable = nv50_pior_disconnect,
2082 	.get_crtc = nv50_display_crtc_get,
2083 };
2084 
2085 static const struct drm_encoder_funcs nv50_pior_func = {
2086 	.destroy = nv50_pior_destroy,
2087 };
2088 
2089 static int
nv50_pior_create(struct drm_connector * connector,struct dcb_output * dcbe)2090 nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
2091 {
2092 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
2093 	struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
2094 	struct nouveau_i2c_port *ddc = NULL;
2095 	struct nouveau_encoder *nv_encoder;
2096 	struct drm_encoder *encoder;
2097 	int type;
2098 
2099 	switch (dcbe->type) {
2100 	case DCB_OUTPUT_TMDS:
2101 		ddc  = i2c->find_type(i2c, NV_I2C_TYPE_EXTDDC(dcbe->extdev));
2102 		type = DRM_MODE_ENCODER_TMDS;
2103 		break;
2104 	case DCB_OUTPUT_DP:
2105 		ddc  = i2c->find_type(i2c, NV_I2C_TYPE_EXTAUX(dcbe->extdev));
2106 		type = DRM_MODE_ENCODER_TMDS;
2107 		break;
2108 	default:
2109 		return -ENODEV;
2110 	}
2111 
2112 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
2113 	if (!nv_encoder)
2114 		return -ENOMEM;
2115 	nv_encoder->dcb = dcbe;
2116 	nv_encoder->or = ffs(dcbe->or) - 1;
2117 	nv_encoder->i2c = ddc;
2118 
2119 	encoder = to_drm_encoder(nv_encoder);
2120 	encoder->possible_crtcs = dcbe->heads;
2121 	encoder->possible_clones = 0;
2122 	drm_encoder_init(connector->dev, encoder, &nv50_pior_func, type);
2123 	drm_encoder_helper_add(encoder, &nv50_pior_hfunc);
2124 
2125 	drm_mode_connector_attach_encoder(connector, encoder);
2126 	return 0;
2127 }
2128 
2129 /******************************************************************************
2130  * Init
2131  *****************************************************************************/
2132 void
nv50_display_fini(struct drm_device * dev)2133 nv50_display_fini(struct drm_device *dev)
2134 {
2135 }
2136 
2137 int
nv50_display_init(struct drm_device * dev)2138 nv50_display_init(struct drm_device *dev)
2139 {
2140 	struct nv50_disp *disp = nv50_disp(dev);
2141 	struct drm_crtc *crtc;
2142 	u32 *push;
2143 
2144 	push = evo_wait(nv50_mast(dev), 32);
2145 	if (!push)
2146 		return -EBUSY;
2147 
2148 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2149 		struct nv50_sync *sync = nv50_sync(crtc);
2150 		nouveau_bo_wr32(disp->sync, sync->addr / 4, sync->data);
2151 	}
2152 
2153 	evo_mthd(push, 0x0088, 1);
2154 	evo_data(push, NvEvoSync);
2155 	evo_kick(push, nv50_mast(dev));
2156 	return 0;
2157 }
2158 
2159 void
nv50_display_destroy(struct drm_device * dev)2160 nv50_display_destroy(struct drm_device *dev)
2161 {
2162 	struct nv50_disp *disp = nv50_disp(dev);
2163 
2164 	nv50_dmac_destroy(disp->core, &disp->mast.base);
2165 
2166 	nouveau_bo_unmap(disp->sync);
2167 	if (disp->sync)
2168 		nouveau_bo_unpin(disp->sync);
2169 	nouveau_bo_ref(NULL, &disp->sync);
2170 
2171 	nouveau_display(dev)->priv = NULL;
2172 	kfree(disp);
2173 }
2174 
2175 int
nv50_display_create(struct drm_device * dev)2176 nv50_display_create(struct drm_device *dev)
2177 {
2178 	static const u16 oclass[] = {
2179 		NVF0_DISP_CLASS,
2180 		NVE0_DISP_CLASS,
2181 		NVD0_DISP_CLASS,
2182 		NVA3_DISP_CLASS,
2183 		NV94_DISP_CLASS,
2184 		NVA0_DISP_CLASS,
2185 		NV84_DISP_CLASS,
2186 		NV50_DISP_CLASS,
2187 	};
2188 	struct nouveau_device *device = nouveau_dev(dev);
2189 	struct nouveau_drm *drm = nouveau_drm(dev);
2190 	struct dcb_table *dcb = &drm->vbios.dcb;
2191 	struct drm_connector *connector, *tmp;
2192 	struct nv50_disp *disp;
2193 	struct dcb_output *dcbe;
2194 	int crtcs, ret, i;
2195 
2196 	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
2197 	if (!disp)
2198 		return -ENOMEM;
2199 
2200 	nouveau_display(dev)->priv = disp;
2201 	nouveau_display(dev)->dtor = nv50_display_destroy;
2202 	nouveau_display(dev)->init = nv50_display_init;
2203 	nouveau_display(dev)->fini = nv50_display_fini;
2204 
2205 	/* small shared memory area we use for notifiers and semaphores */
2206 	ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
2207 			     0, 0x0000, NULL, &disp->sync);
2208 	if (!ret) {
2209 		ret = nouveau_bo_pin(disp->sync, TTM_PL_FLAG_VRAM);
2210 		if (!ret) {
2211 			ret = nouveau_bo_map(disp->sync);
2212 			if (ret)
2213 				nouveau_bo_unpin(disp->sync);
2214 		}
2215 		if (ret)
2216 			nouveau_bo_ref(NULL, &disp->sync);
2217 	}
2218 
2219 	if (ret)
2220 		goto out;
2221 
2222 	/* attempt to allocate a supported evo display class */
2223 	ret = -ENODEV;
2224 	for (i = 0; ret && i < ARRAY_SIZE(oclass); i++) {
2225 		ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE,
2226 					 0xd1500000, oclass[i], NULL, 0,
2227 					 &disp->core);
2228 	}
2229 
2230 	if (ret)
2231 		goto out;
2232 
2233 	/* allocate master evo channel */
2234 	ret = nv50_dmac_create(disp->core, NV50_DISP_MAST_CLASS, 0,
2235 			      &(struct nv50_display_mast_class) {
2236 					.pushbuf = EVO_PUSH_HANDLE(MAST, 0),
2237 			      }, sizeof(struct nv50_display_mast_class),
2238 			      disp->sync->bo.offset, &disp->mast.base);
2239 	if (ret)
2240 		goto out;
2241 
2242 	/* create crtc objects to represent the hw heads */
2243 	if (nv_mclass(disp->core) >= NVD0_DISP_CLASS)
2244 		crtcs = nv_rd32(device, 0x022448);
2245 	else
2246 		crtcs = 2;
2247 
2248 	for (i = 0; i < crtcs; i++) {
2249 		ret = nv50_crtc_create(dev, disp->core, i);
2250 		if (ret)
2251 			goto out;
2252 	}
2253 
2254 	/* create encoder/connector objects based on VBIOS DCB table */
2255 	for (i = 0, dcbe = &dcb->entry[0]; i < dcb->entries; i++, dcbe++) {
2256 		connector = nouveau_connector_create(dev, dcbe->connector);
2257 		if (IS_ERR(connector))
2258 			continue;
2259 
2260 		if (dcbe->location == DCB_LOC_ON_CHIP) {
2261 			switch (dcbe->type) {
2262 			case DCB_OUTPUT_TMDS:
2263 			case DCB_OUTPUT_LVDS:
2264 			case DCB_OUTPUT_DP:
2265 				ret = nv50_sor_create(connector, dcbe);
2266 				break;
2267 			case DCB_OUTPUT_ANALOG:
2268 				ret = nv50_dac_create(connector, dcbe);
2269 				break;
2270 			default:
2271 				ret = -ENODEV;
2272 				break;
2273 			}
2274 		} else {
2275 			ret = nv50_pior_create(connector, dcbe);
2276 		}
2277 
2278 		if (ret) {
2279 			NV_WARN(drm, "failed to create encoder %d/%d/%d: %d\n",
2280 				     dcbe->location, dcbe->type,
2281 				     ffs(dcbe->or) - 1, ret);
2282 			ret = 0;
2283 		}
2284 	}
2285 
2286 	/* cull any connectors we created that don't have an encoder */
2287 	list_for_each_entry_safe(connector, tmp, &dev->mode_config.connector_list, head) {
2288 		if (connector->encoder_ids[0])
2289 			continue;
2290 
2291 		NV_WARN(drm, "%s has no encoders, removing\n",
2292 			drm_get_connector_name(connector));
2293 		connector->funcs->destroy(connector);
2294 	}
2295 
2296 out:
2297 	if (ret)
2298 		nv50_display_destroy(dev);
2299 	return ret;
2300 }
2301