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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 #include <drm/drm_dp_helper.h>
30 
31 #include <nvif/class.h>
32 
33 #include "nouveau_drm.h"
34 #include "nouveau_dma.h"
35 #include "nouveau_gem.h"
36 #include "nouveau_connector.h"
37 #include "nouveau_encoder.h"
38 #include "nouveau_crtc.h"
39 #include "nouveau_fence.h"
40 #include "nv50_display.h"
41 
42 #define EVO_DMA_NR 9
43 
44 #define EVO_MASTER  (0x00)
45 #define EVO_FLIP(c) (0x01 + (c))
46 #define EVO_OVLY(c) (0x05 + (c))
47 #define EVO_OIMM(c) (0x09 + (c))
48 #define EVO_CURS(c) (0x0d + (c))
49 
50 /* offsets in shared sync bo of various structures */
51 #define EVO_SYNC(c, o) ((c) * 0x0100 + (o))
52 #define EVO_MAST_NTFY     EVO_SYNC(      0, 0x00)
53 #define EVO_FLIP_SEM0(c)  EVO_SYNC((c) + 1, 0x00)
54 #define EVO_FLIP_SEM1(c)  EVO_SYNC((c) + 1, 0x10)
55 
56 /******************************************************************************
57  * EVO channel
58  *****************************************************************************/
59 
60 struct nv50_chan {
61 	struct nvif_object user;
62 };
63 
64 static int
nv50_chan_create(struct nvif_object * disp,const u32 * oclass,u8 head,void * data,u32 size,struct nv50_chan * chan)65 nv50_chan_create(struct nvif_object *disp, const u32 *oclass, u8 head,
66 		 void *data, u32 size, struct nv50_chan *chan)
67 {
68 	while (oclass[0]) {
69 		int ret = nvif_object_init(disp, NULL, (oclass[0] << 16) | head,
70 					   oclass[0], data, size,
71 					  &chan->user);
72 		if (oclass++, ret == 0) {
73 			nvif_object_map(&chan->user);
74 			return ret;
75 		}
76 	}
77 	return -ENOSYS;
78 }
79 
80 static void
nv50_chan_destroy(struct nv50_chan * chan)81 nv50_chan_destroy(struct nv50_chan *chan)
82 {
83 	nvif_object_fini(&chan->user);
84 }
85 
86 /******************************************************************************
87  * PIO EVO channel
88  *****************************************************************************/
89 
90 struct nv50_pioc {
91 	struct nv50_chan base;
92 };
93 
94 static void
nv50_pioc_destroy(struct nv50_pioc * pioc)95 nv50_pioc_destroy(struct nv50_pioc *pioc)
96 {
97 	nv50_chan_destroy(&pioc->base);
98 }
99 
100 static int
nv50_pioc_create(struct nvif_object * disp,const u32 * oclass,u8 head,void * data,u32 size,struct nv50_pioc * pioc)101 nv50_pioc_create(struct nvif_object *disp, const u32 *oclass, u8 head,
102 		 void *data, u32 size, struct nv50_pioc *pioc)
103 {
104 	return nv50_chan_create(disp, oclass, head, data, size, &pioc->base);
105 }
106 
107 /******************************************************************************
108  * Cursor Immediate
109  *****************************************************************************/
110 
111 struct nv50_curs {
112 	struct nv50_pioc base;
113 };
114 
115 static int
nv50_curs_create(struct nvif_object * disp,int head,struct nv50_curs * curs)116 nv50_curs_create(struct nvif_object *disp, int head, struct nv50_curs *curs)
117 {
118 	struct nv50_disp_cursor_v0 args = {
119 		.head = head,
120 	};
121 	static const u32 oclass[] = {
122 		GK104_DISP_CURSOR,
123 		GF110_DISP_CURSOR,
124 		GT214_DISP_CURSOR,
125 		G82_DISP_CURSOR,
126 		NV50_DISP_CURSOR,
127 		0
128 	};
129 
130 	return nv50_pioc_create(disp, oclass, head, &args, sizeof(args),
131 			       &curs->base);
132 }
133 
134 /******************************************************************************
135  * Overlay Immediate
136  *****************************************************************************/
137 
138 struct nv50_oimm {
139 	struct nv50_pioc base;
140 };
141 
142 static int
nv50_oimm_create(struct nvif_object * disp,int head,struct nv50_oimm * oimm)143 nv50_oimm_create(struct nvif_object *disp, int head, struct nv50_oimm *oimm)
144 {
145 	struct nv50_disp_cursor_v0 args = {
146 		.head = head,
147 	};
148 	static const u32 oclass[] = {
149 		GK104_DISP_OVERLAY,
150 		GF110_DISP_OVERLAY,
151 		GT214_DISP_OVERLAY,
152 		G82_DISP_OVERLAY,
153 		NV50_DISP_OVERLAY,
154 		0
155 	};
156 
157 	return nv50_pioc_create(disp, oclass, head, &args, sizeof(args),
158 			       &oimm->base);
159 }
160 
161 /******************************************************************************
162  * DMA EVO channel
163  *****************************************************************************/
164 
165 struct nv50_dmac {
166 	struct nv50_chan base;
167 	dma_addr_t handle;
168 	u32 *ptr;
169 
170 	struct nvif_object sync;
171 	struct nvif_object vram;
172 
173 	/* Protects against concurrent pushbuf access to this channel, lock is
174 	 * grabbed by evo_wait (if the pushbuf reservation is successful) and
175 	 * dropped again by evo_kick. */
176 	struct mutex lock;
177 };
178 
179 static void
nv50_dmac_destroy(struct nv50_dmac * dmac,struct nvif_object * disp)180 nv50_dmac_destroy(struct nv50_dmac *dmac, struct nvif_object *disp)
181 {
182 	nvif_object_fini(&dmac->vram);
183 	nvif_object_fini(&dmac->sync);
184 
185 	nv50_chan_destroy(&dmac->base);
186 
187 	if (dmac->ptr) {
188 		struct pci_dev *pdev = nvkm_device(nvif_device(disp))->pdev;
189 		pci_free_consistent(pdev, PAGE_SIZE, dmac->ptr, dmac->handle);
190 	}
191 }
192 
193 static int
nv50_dmac_create(struct nvif_object * disp,const u32 * oclass,u8 head,void * data,u32 size,u64 syncbuf,struct nv50_dmac * dmac)194 nv50_dmac_create(struct nvif_object *disp, const u32 *oclass, u8 head,
195 		 void *data, u32 size, u64 syncbuf,
196 		 struct nv50_dmac *dmac)
197 {
198 	struct nvif_device *device = nvif_device(disp);
199 	struct nv50_disp_core_channel_dma_v0 *args = data;
200 	struct nvif_object pushbuf;
201 	int ret;
202 
203 	mutex_init(&dmac->lock);
204 
205 	dmac->ptr = pci_alloc_consistent(nvkm_device(device)->pdev,
206 					 PAGE_SIZE, &dmac->handle);
207 	if (!dmac->ptr)
208 		return -ENOMEM;
209 
210 	ret = nvif_object_init(nvif_object(device), NULL,
211 			       args->pushbuf, NV_DMA_FROM_MEMORY,
212 			       &(struct nv_dma_v0) {
213 					.target = NV_DMA_V0_TARGET_PCI_US,
214 					.access = NV_DMA_V0_ACCESS_RD,
215 					.start = dmac->handle + 0x0000,
216 					.limit = dmac->handle + 0x0fff,
217 			       }, sizeof(struct nv_dma_v0), &pushbuf);
218 	if (ret)
219 		return ret;
220 
221 	ret = nv50_chan_create(disp, oclass, head, data, size, &dmac->base);
222 	nvif_object_fini(&pushbuf);
223 	if (ret)
224 		return ret;
225 
226 	ret = nvif_object_init(&dmac->base.user, NULL, 0xf0000000,
227 			       NV_DMA_IN_MEMORY,
228 			       &(struct nv_dma_v0) {
229 					.target = NV_DMA_V0_TARGET_VRAM,
230 					.access = NV_DMA_V0_ACCESS_RDWR,
231 					.start = syncbuf + 0x0000,
232 					.limit = syncbuf + 0x0fff,
233 			       }, sizeof(struct nv_dma_v0),
234 			       &dmac->sync);
235 	if (ret)
236 		return ret;
237 
238 	ret = nvif_object_init(&dmac->base.user, NULL, 0xf0000001,
239 			       NV_DMA_IN_MEMORY,
240 			       &(struct nv_dma_v0) {
241 					.target = NV_DMA_V0_TARGET_VRAM,
242 					.access = NV_DMA_V0_ACCESS_RDWR,
243 					.start = 0,
244 					.limit = device->info.ram_user - 1,
245 			       }, sizeof(struct nv_dma_v0),
246 			       &dmac->vram);
247 	if (ret)
248 		return ret;
249 
250 	return ret;
251 }
252 
253 /******************************************************************************
254  * Core
255  *****************************************************************************/
256 
257 struct nv50_mast {
258 	struct nv50_dmac base;
259 };
260 
261 static int
nv50_core_create(struct nvif_object * disp,u64 syncbuf,struct nv50_mast * core)262 nv50_core_create(struct nvif_object *disp, u64 syncbuf, struct nv50_mast *core)
263 {
264 	struct nv50_disp_core_channel_dma_v0 args = {
265 		.pushbuf = 0xb0007d00,
266 	};
267 	static const u32 oclass[] = {
268 		GM107_DISP_CORE_CHANNEL_DMA,
269 		GK110_DISP_CORE_CHANNEL_DMA,
270 		GK104_DISP_CORE_CHANNEL_DMA,
271 		GF110_DISP_CORE_CHANNEL_DMA,
272 		GT214_DISP_CORE_CHANNEL_DMA,
273 		GT206_DISP_CORE_CHANNEL_DMA,
274 		GT200_DISP_CORE_CHANNEL_DMA,
275 		G82_DISP_CORE_CHANNEL_DMA,
276 		NV50_DISP_CORE_CHANNEL_DMA,
277 		0
278 	};
279 
280 	return nv50_dmac_create(disp, oclass, 0, &args, sizeof(args), syncbuf,
281 			       &core->base);
282 }
283 
284 /******************************************************************************
285  * Base
286  *****************************************************************************/
287 
288 struct nv50_sync {
289 	struct nv50_dmac base;
290 	u32 addr;
291 	u32 data;
292 };
293 
294 static int
nv50_base_create(struct nvif_object * disp,int head,u64 syncbuf,struct nv50_sync * base)295 nv50_base_create(struct nvif_object *disp, int head, u64 syncbuf,
296 		 struct nv50_sync *base)
297 {
298 	struct nv50_disp_base_channel_dma_v0 args = {
299 		.pushbuf = 0xb0007c00 | head,
300 		.head = head,
301 	};
302 	static const u32 oclass[] = {
303 		GK110_DISP_BASE_CHANNEL_DMA,
304 		GK104_DISP_BASE_CHANNEL_DMA,
305 		GF110_DISP_BASE_CHANNEL_DMA,
306 		GT214_DISP_BASE_CHANNEL_DMA,
307 		GT200_DISP_BASE_CHANNEL_DMA,
308 		G82_DISP_BASE_CHANNEL_DMA,
309 		NV50_DISP_BASE_CHANNEL_DMA,
310 		0
311 	};
312 
313 	return nv50_dmac_create(disp, oclass, head, &args, sizeof(args),
314 				syncbuf, &base->base);
315 }
316 
317 /******************************************************************************
318  * Overlay
319  *****************************************************************************/
320 
321 struct nv50_ovly {
322 	struct nv50_dmac base;
323 };
324 
325 static int
nv50_ovly_create(struct nvif_object * disp,int head,u64 syncbuf,struct nv50_ovly * ovly)326 nv50_ovly_create(struct nvif_object *disp, int head, u64 syncbuf,
327 		 struct nv50_ovly *ovly)
328 {
329 	struct nv50_disp_overlay_channel_dma_v0 args = {
330 		.pushbuf = 0xb0007e00 | head,
331 		.head = head,
332 	};
333 	static const u32 oclass[] = {
334 		GK104_DISP_OVERLAY_CONTROL_DMA,
335 		GF110_DISP_OVERLAY_CONTROL_DMA,
336 		GT214_DISP_OVERLAY_CHANNEL_DMA,
337 		GT200_DISP_OVERLAY_CHANNEL_DMA,
338 		G82_DISP_OVERLAY_CHANNEL_DMA,
339 		NV50_DISP_OVERLAY_CHANNEL_DMA,
340 		0
341 	};
342 
343 	return nv50_dmac_create(disp, oclass, head, &args, sizeof(args),
344 				syncbuf, &ovly->base);
345 }
346 
347 struct nv50_head {
348 	struct nouveau_crtc base;
349 	struct nouveau_bo *image;
350 	struct nv50_curs curs;
351 	struct nv50_sync sync;
352 	struct nv50_ovly ovly;
353 	struct nv50_oimm oimm;
354 };
355 
356 #define nv50_head(c) ((struct nv50_head *)nouveau_crtc(c))
357 #define nv50_curs(c) (&nv50_head(c)->curs)
358 #define nv50_sync(c) (&nv50_head(c)->sync)
359 #define nv50_ovly(c) (&nv50_head(c)->ovly)
360 #define nv50_oimm(c) (&nv50_head(c)->oimm)
361 #define nv50_chan(c) (&(c)->base.base)
362 #define nv50_vers(c) nv50_chan(c)->user.oclass
363 
364 struct nv50_fbdma {
365 	struct list_head head;
366 	struct nvif_object core;
367 	struct nvif_object base[4];
368 };
369 
370 struct nv50_disp {
371 	struct nvif_object *disp;
372 	struct nv50_mast mast;
373 
374 	struct list_head fbdma;
375 
376 	struct nouveau_bo *sync;
377 };
378 
379 static struct nv50_disp *
nv50_disp(struct drm_device * dev)380 nv50_disp(struct drm_device *dev)
381 {
382 	return nouveau_display(dev)->priv;
383 }
384 
385 #define nv50_mast(d) (&nv50_disp(d)->mast)
386 
387 static struct drm_crtc *
nv50_display_crtc_get(struct drm_encoder * encoder)388 nv50_display_crtc_get(struct drm_encoder *encoder)
389 {
390 	return nouveau_encoder(encoder)->crtc;
391 }
392 
393 /******************************************************************************
394  * EVO channel helpers
395  *****************************************************************************/
396 static u32 *
evo_wait(void * evoc,int nr)397 evo_wait(void *evoc, int nr)
398 {
399 	struct nv50_dmac *dmac = evoc;
400 	u32 put = nvif_rd32(&dmac->base.user, 0x0000) / 4;
401 
402 	mutex_lock(&dmac->lock);
403 	if (put + nr >= (PAGE_SIZE / 4) - 8) {
404 		dmac->ptr[put] = 0x20000000;
405 
406 		nvif_wr32(&dmac->base.user, 0x0000, 0x00000000);
407 		if (!nvkm_wait(&dmac->base.user, 0x0004, ~0, 0x00000000)) {
408 			mutex_unlock(&dmac->lock);
409 			nv_error(nvkm_object(&dmac->base.user), "channel stalled\n");
410 			return NULL;
411 		}
412 
413 		put = 0;
414 	}
415 
416 	return dmac->ptr + put;
417 }
418 
419 static void
evo_kick(u32 * push,void * evoc)420 evo_kick(u32 *push, void *evoc)
421 {
422 	struct nv50_dmac *dmac = evoc;
423 	nvif_wr32(&dmac->base.user, 0x0000, (push - dmac->ptr) << 2);
424 	mutex_unlock(&dmac->lock);
425 }
426 
427 #define evo_mthd(p,m,s) *((p)++) = (((s) << 18) | (m))
428 #define evo_data(p,d)   *((p)++) = (d)
429 
430 static bool
evo_sync_wait(void * data)431 evo_sync_wait(void *data)
432 {
433 	if (nouveau_bo_rd32(data, EVO_MAST_NTFY) != 0x00000000)
434 		return true;
435 	usleep_range(1, 2);
436 	return false;
437 }
438 
439 static int
evo_sync(struct drm_device * dev)440 evo_sync(struct drm_device *dev)
441 {
442 	struct nvif_device *device = &nouveau_drm(dev)->device;
443 	struct nv50_disp *disp = nv50_disp(dev);
444 	struct nv50_mast *mast = nv50_mast(dev);
445 	u32 *push = evo_wait(mast, 8);
446 	if (push) {
447 		nouveau_bo_wr32(disp->sync, EVO_MAST_NTFY, 0x00000000);
448 		evo_mthd(push, 0x0084, 1);
449 		evo_data(push, 0x80000000 | EVO_MAST_NTFY);
450 		evo_mthd(push, 0x0080, 2);
451 		evo_data(push, 0x00000000);
452 		evo_data(push, 0x00000000);
453 		evo_kick(push, mast);
454 		if (nv_wait_cb(nvkm_device(device), evo_sync_wait, disp->sync))
455 			return 0;
456 	}
457 
458 	return -EBUSY;
459 }
460 
461 /******************************************************************************
462  * Page flipping channel
463  *****************************************************************************/
464 struct nouveau_bo *
nv50_display_crtc_sema(struct drm_device * dev,int crtc)465 nv50_display_crtc_sema(struct drm_device *dev, int crtc)
466 {
467 	return nv50_disp(dev)->sync;
468 }
469 
470 struct nv50_display_flip {
471 	struct nv50_disp *disp;
472 	struct nv50_sync *chan;
473 };
474 
475 static bool
nv50_display_flip_wait(void * data)476 nv50_display_flip_wait(void *data)
477 {
478 	struct nv50_display_flip *flip = data;
479 	if (nouveau_bo_rd32(flip->disp->sync, flip->chan->addr / 4) ==
480 					      flip->chan->data)
481 		return true;
482 	usleep_range(1, 2);
483 	return false;
484 }
485 
486 void
nv50_display_flip_stop(struct drm_crtc * crtc)487 nv50_display_flip_stop(struct drm_crtc *crtc)
488 {
489 	struct nvif_device *device = &nouveau_drm(crtc->dev)->device;
490 	struct nv50_display_flip flip = {
491 		.disp = nv50_disp(crtc->dev),
492 		.chan = nv50_sync(crtc),
493 	};
494 	u32 *push;
495 
496 	push = evo_wait(flip.chan, 8);
497 	if (push) {
498 		evo_mthd(push, 0x0084, 1);
499 		evo_data(push, 0x00000000);
500 		evo_mthd(push, 0x0094, 1);
501 		evo_data(push, 0x00000000);
502 		evo_mthd(push, 0x00c0, 1);
503 		evo_data(push, 0x00000000);
504 		evo_mthd(push, 0x0080, 1);
505 		evo_data(push, 0x00000000);
506 		evo_kick(push, flip.chan);
507 	}
508 
509 	nv_wait_cb(nvkm_device(device), nv50_display_flip_wait, &flip);
510 }
511 
512 int
nv50_display_flip_next(struct drm_crtc * crtc,struct drm_framebuffer * fb,struct nouveau_channel * chan,u32 swap_interval)513 nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
514 		       struct nouveau_channel *chan, u32 swap_interval)
515 {
516 	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
517 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
518 	struct nv50_head *head = nv50_head(crtc);
519 	struct nv50_sync *sync = nv50_sync(crtc);
520 	u32 *push;
521 	int ret;
522 
523 	swap_interval <<= 4;
524 	if (swap_interval == 0)
525 		swap_interval |= 0x100;
526 	if (chan == NULL)
527 		evo_sync(crtc->dev);
528 
529 	push = evo_wait(sync, 128);
530 	if (unlikely(push == NULL))
531 		return -EBUSY;
532 
533 	if (chan && chan->object->oclass < G82_CHANNEL_GPFIFO) {
534 		ret = RING_SPACE(chan, 8);
535 		if (ret)
536 			return ret;
537 
538 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 2);
539 		OUT_RING  (chan, NvEvoSema0 + nv_crtc->index);
540 		OUT_RING  (chan, sync->addr ^ 0x10);
541 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_SEMAPHORE_RELEASE, 1);
542 		OUT_RING  (chan, sync->data + 1);
543 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_SEMAPHORE_OFFSET, 2);
544 		OUT_RING  (chan, sync->addr);
545 		OUT_RING  (chan, sync->data);
546 	} else
547 	if (chan && chan->object->oclass < FERMI_CHANNEL_GPFIFO) {
548 		u64 addr = nv84_fence_crtc(chan, nv_crtc->index) + sync->addr;
549 		ret = RING_SPACE(chan, 12);
550 		if (ret)
551 			return ret;
552 
553 		BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1);
554 		OUT_RING  (chan, chan->vram.handle);
555 		BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
556 		OUT_RING  (chan, upper_32_bits(addr ^ 0x10));
557 		OUT_RING  (chan, lower_32_bits(addr ^ 0x10));
558 		OUT_RING  (chan, sync->data + 1);
559 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
560 		BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
561 		OUT_RING  (chan, upper_32_bits(addr));
562 		OUT_RING  (chan, lower_32_bits(addr));
563 		OUT_RING  (chan, sync->data);
564 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL);
565 	} else
566 	if (chan) {
567 		u64 addr = nv84_fence_crtc(chan, nv_crtc->index) + sync->addr;
568 		ret = RING_SPACE(chan, 10);
569 		if (ret)
570 			return ret;
571 
572 		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
573 		OUT_RING  (chan, upper_32_bits(addr ^ 0x10));
574 		OUT_RING  (chan, lower_32_bits(addr ^ 0x10));
575 		OUT_RING  (chan, sync->data + 1);
576 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG |
577 				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
578 		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
579 		OUT_RING  (chan, upper_32_bits(addr));
580 		OUT_RING  (chan, lower_32_bits(addr));
581 		OUT_RING  (chan, sync->data);
582 		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL |
583 				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
584 	}
585 
586 	if (chan) {
587 		sync->addr ^= 0x10;
588 		sync->data++;
589 		FIRE_RING (chan);
590 	}
591 
592 	/* queue the flip */
593 	evo_mthd(push, 0x0100, 1);
594 	evo_data(push, 0xfffe0000);
595 	evo_mthd(push, 0x0084, 1);
596 	evo_data(push, swap_interval);
597 	if (!(swap_interval & 0x00000100)) {
598 		evo_mthd(push, 0x00e0, 1);
599 		evo_data(push, 0x40000000);
600 	}
601 	evo_mthd(push, 0x0088, 4);
602 	evo_data(push, sync->addr);
603 	evo_data(push, sync->data++);
604 	evo_data(push, sync->data);
605 	evo_data(push, sync->base.sync.handle);
606 	evo_mthd(push, 0x00a0, 2);
607 	evo_data(push, 0x00000000);
608 	evo_data(push, 0x00000000);
609 	evo_mthd(push, 0x00c0, 1);
610 	evo_data(push, nv_fb->r_handle);
611 	evo_mthd(push, 0x0110, 2);
612 	evo_data(push, 0x00000000);
613 	evo_data(push, 0x00000000);
614 	if (nv50_vers(sync) < GF110_DISP_BASE_CHANNEL_DMA) {
615 		evo_mthd(push, 0x0800, 5);
616 		evo_data(push, nv_fb->nvbo->bo.offset >> 8);
617 		evo_data(push, 0);
618 		evo_data(push, (fb->height << 16) | fb->width);
619 		evo_data(push, nv_fb->r_pitch);
620 		evo_data(push, nv_fb->r_format);
621 	} else {
622 		evo_mthd(push, 0x0400, 5);
623 		evo_data(push, nv_fb->nvbo->bo.offset >> 8);
624 		evo_data(push, 0);
625 		evo_data(push, (fb->height << 16) | fb->width);
626 		evo_data(push, nv_fb->r_pitch);
627 		evo_data(push, nv_fb->r_format);
628 	}
629 	evo_mthd(push, 0x0080, 1);
630 	evo_data(push, 0x00000000);
631 	evo_kick(push, sync);
632 
633 	nouveau_bo_ref(nv_fb->nvbo, &head->image);
634 	return 0;
635 }
636 
637 /******************************************************************************
638  * CRTC
639  *****************************************************************************/
640 static int
nv50_crtc_set_dither(struct nouveau_crtc * nv_crtc,bool update)641 nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool update)
642 {
643 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
644 	struct nouveau_connector *nv_connector;
645 	struct drm_connector *connector;
646 	u32 *push, mode = 0x00;
647 
648 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
649 	connector = &nv_connector->base;
650 	if (nv_connector->dithering_mode == DITHERING_MODE_AUTO) {
651 		if (nv_crtc->base.primary->fb->depth > connector->display_info.bpc * 3)
652 			mode = DITHERING_MODE_DYNAMIC2X2;
653 	} else {
654 		mode = nv_connector->dithering_mode;
655 	}
656 
657 	if (nv_connector->dithering_depth == DITHERING_DEPTH_AUTO) {
658 		if (connector->display_info.bpc >= 8)
659 			mode |= DITHERING_DEPTH_8BPC;
660 	} else {
661 		mode |= nv_connector->dithering_depth;
662 	}
663 
664 	push = evo_wait(mast, 4);
665 	if (push) {
666 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
667 			evo_mthd(push, 0x08a0 + (nv_crtc->index * 0x0400), 1);
668 			evo_data(push, mode);
669 		} else
670 		if (nv50_vers(mast) < GK104_DISP_CORE_CHANNEL_DMA) {
671 			evo_mthd(push, 0x0490 + (nv_crtc->index * 0x0300), 1);
672 			evo_data(push, mode);
673 		} else {
674 			evo_mthd(push, 0x04a0 + (nv_crtc->index * 0x0300), 1);
675 			evo_data(push, mode);
676 		}
677 
678 		if (update) {
679 			evo_mthd(push, 0x0080, 1);
680 			evo_data(push, 0x00000000);
681 		}
682 		evo_kick(push, mast);
683 	}
684 
685 	return 0;
686 }
687 
688 static int
nv50_crtc_set_scale(struct nouveau_crtc * nv_crtc,bool update)689 nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update)
690 {
691 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
692 	struct drm_display_mode *omode, *umode = &nv_crtc->base.mode;
693 	struct drm_crtc *crtc = &nv_crtc->base;
694 	struct nouveau_connector *nv_connector;
695 	int mode = DRM_MODE_SCALE_NONE;
696 	u32 oX, oY, *push;
697 
698 	/* start off at the resolution we programmed the crtc for, this
699 	 * effectively handles NONE/FULL scaling
700 	 */
701 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
702 	if (nv_connector && nv_connector->native_mode)
703 		mode = nv_connector->scaling_mode;
704 
705 	if (mode != DRM_MODE_SCALE_NONE)
706 		omode = nv_connector->native_mode;
707 	else
708 		omode = umode;
709 
710 	oX = omode->hdisplay;
711 	oY = omode->vdisplay;
712 	if (omode->flags & DRM_MODE_FLAG_DBLSCAN)
713 		oY *= 2;
714 
715 	/* add overscan compensation if necessary, will keep the aspect
716 	 * ratio the same as the backend mode unless overridden by the
717 	 * user setting both hborder and vborder properties.
718 	 */
719 	if (nv_connector && ( nv_connector->underscan == UNDERSCAN_ON ||
720 			     (nv_connector->underscan == UNDERSCAN_AUTO &&
721 			      nv_connector->edid &&
722 			      drm_detect_hdmi_monitor(nv_connector->edid)))) {
723 		u32 bX = nv_connector->underscan_hborder;
724 		u32 bY = nv_connector->underscan_vborder;
725 		u32 aspect = (oY << 19) / oX;
726 
727 		if (bX) {
728 			oX -= (bX * 2);
729 			if (bY) oY -= (bY * 2);
730 			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
731 		} else {
732 			oX -= (oX >> 4) + 32;
733 			if (bY) oY -= (bY * 2);
734 			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
735 		}
736 	}
737 
738 	/* handle CENTER/ASPECT scaling, taking into account the areas
739 	 * removed already for overscan compensation
740 	 */
741 	switch (mode) {
742 	case DRM_MODE_SCALE_CENTER:
743 		oX = min((u32)umode->hdisplay, oX);
744 		oY = min((u32)umode->vdisplay, oY);
745 		/* fall-through */
746 	case DRM_MODE_SCALE_ASPECT:
747 		if (oY < oX) {
748 			u32 aspect = (umode->hdisplay << 19) / umode->vdisplay;
749 			oX = ((oY * aspect) + (aspect / 2)) >> 19;
750 		} else {
751 			u32 aspect = (umode->vdisplay << 19) / umode->hdisplay;
752 			oY = ((oX * aspect) + (aspect / 2)) >> 19;
753 		}
754 		break;
755 	default:
756 		break;
757 	}
758 
759 	push = evo_wait(mast, 8);
760 	if (push) {
761 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
762 			/*XXX: SCALE_CTRL_ACTIVE??? */
763 			evo_mthd(push, 0x08d8 + (nv_crtc->index * 0x400), 2);
764 			evo_data(push, (oY << 16) | oX);
765 			evo_data(push, (oY << 16) | oX);
766 			evo_mthd(push, 0x08a4 + (nv_crtc->index * 0x400), 1);
767 			evo_data(push, 0x00000000);
768 			evo_mthd(push, 0x08c8 + (nv_crtc->index * 0x400), 1);
769 			evo_data(push, umode->vdisplay << 16 | umode->hdisplay);
770 		} else {
771 			evo_mthd(push, 0x04c0 + (nv_crtc->index * 0x300), 3);
772 			evo_data(push, (oY << 16) | oX);
773 			evo_data(push, (oY << 16) | oX);
774 			evo_data(push, (oY << 16) | oX);
775 			evo_mthd(push, 0x0494 + (nv_crtc->index * 0x300), 1);
776 			evo_data(push, 0x00000000);
777 			evo_mthd(push, 0x04b8 + (nv_crtc->index * 0x300), 1);
778 			evo_data(push, umode->vdisplay << 16 | umode->hdisplay);
779 		}
780 
781 		evo_kick(push, mast);
782 
783 		if (update) {
784 			nv50_display_flip_stop(crtc);
785 			nv50_display_flip_next(crtc, crtc->primary->fb,
786 					       NULL, 1);
787 		}
788 	}
789 
790 	return 0;
791 }
792 
793 static int
nv50_crtc_set_raster_vblank_dmi(struct nouveau_crtc * nv_crtc,u32 usec)794 nv50_crtc_set_raster_vblank_dmi(struct nouveau_crtc *nv_crtc, u32 usec)
795 {
796 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
797 	u32 *push;
798 
799 	push = evo_wait(mast, 8);
800 	if (!push)
801 		return -ENOMEM;
802 
803 	evo_mthd(push, 0x0828 + (nv_crtc->index * 0x400), 1);
804 	evo_data(push, usec);
805 	evo_kick(push, mast);
806 	return 0;
807 }
808 
809 static int
nv50_crtc_set_color_vibrance(struct nouveau_crtc * nv_crtc,bool update)810 nv50_crtc_set_color_vibrance(struct nouveau_crtc *nv_crtc, bool update)
811 {
812 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
813 	u32 *push, hue, vib;
814 	int adj;
815 
816 	adj = (nv_crtc->color_vibrance > 0) ? 50 : 0;
817 	vib = ((nv_crtc->color_vibrance * 2047 + adj) / 100) & 0xfff;
818 	hue = ((nv_crtc->vibrant_hue * 2047) / 100) & 0xfff;
819 
820 	push = evo_wait(mast, 16);
821 	if (push) {
822 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
823 			evo_mthd(push, 0x08a8 + (nv_crtc->index * 0x400), 1);
824 			evo_data(push, (hue << 20) | (vib << 8));
825 		} else {
826 			evo_mthd(push, 0x0498 + (nv_crtc->index * 0x300), 1);
827 			evo_data(push, (hue << 20) | (vib << 8));
828 		}
829 
830 		if (update) {
831 			evo_mthd(push, 0x0080, 1);
832 			evo_data(push, 0x00000000);
833 		}
834 		evo_kick(push, mast);
835 	}
836 
837 	return 0;
838 }
839 
840 static int
nv50_crtc_set_image(struct nouveau_crtc * nv_crtc,struct drm_framebuffer * fb,int x,int y,bool update)841 nv50_crtc_set_image(struct nouveau_crtc *nv_crtc, struct drm_framebuffer *fb,
842 		    int x, int y, bool update)
843 {
844 	struct nouveau_framebuffer *nvfb = nouveau_framebuffer(fb);
845 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
846 	u32 *push;
847 
848 	push = evo_wait(mast, 16);
849 	if (push) {
850 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
851 			evo_mthd(push, 0x0860 + (nv_crtc->index * 0x400), 1);
852 			evo_data(push, nvfb->nvbo->bo.offset >> 8);
853 			evo_mthd(push, 0x0868 + (nv_crtc->index * 0x400), 3);
854 			evo_data(push, (fb->height << 16) | fb->width);
855 			evo_data(push, nvfb->r_pitch);
856 			evo_data(push, nvfb->r_format);
857 			evo_mthd(push, 0x08c0 + (nv_crtc->index * 0x400), 1);
858 			evo_data(push, (y << 16) | x);
859 			if (nv50_vers(mast) > NV50_DISP_CORE_CHANNEL_DMA) {
860 				evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
861 				evo_data(push, nvfb->r_handle);
862 			}
863 		} else {
864 			evo_mthd(push, 0x0460 + (nv_crtc->index * 0x300), 1);
865 			evo_data(push, nvfb->nvbo->bo.offset >> 8);
866 			evo_mthd(push, 0x0468 + (nv_crtc->index * 0x300), 4);
867 			evo_data(push, (fb->height << 16) | fb->width);
868 			evo_data(push, nvfb->r_pitch);
869 			evo_data(push, nvfb->r_format);
870 			evo_data(push, nvfb->r_handle);
871 			evo_mthd(push, 0x04b0 + (nv_crtc->index * 0x300), 1);
872 			evo_data(push, (y << 16) | x);
873 		}
874 
875 		if (update) {
876 			evo_mthd(push, 0x0080, 1);
877 			evo_data(push, 0x00000000);
878 		}
879 		evo_kick(push, mast);
880 	}
881 
882 	nv_crtc->fb.handle = nvfb->r_handle;
883 	return 0;
884 }
885 
886 static void
nv50_crtc_cursor_show(struct nouveau_crtc * nv_crtc)887 nv50_crtc_cursor_show(struct nouveau_crtc *nv_crtc)
888 {
889 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
890 	u32 *push = evo_wait(mast, 16);
891 	if (push) {
892 		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
893 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 2);
894 			evo_data(push, 0x85000000);
895 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
896 		} else
897 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
898 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 2);
899 			evo_data(push, 0x85000000);
900 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
901 			evo_mthd(push, 0x089c + (nv_crtc->index * 0x400), 1);
902 			evo_data(push, mast->base.vram.handle);
903 		} else {
904 			evo_mthd(push, 0x0480 + (nv_crtc->index * 0x300), 2);
905 			evo_data(push, 0x85000000);
906 			evo_data(push, nv_crtc->cursor.nvbo->bo.offset >> 8);
907 			evo_mthd(push, 0x048c + (nv_crtc->index * 0x300), 1);
908 			evo_data(push, mast->base.vram.handle);
909 		}
910 		evo_kick(push, mast);
911 	}
912 }
913 
914 static void
nv50_crtc_cursor_hide(struct nouveau_crtc * nv_crtc)915 nv50_crtc_cursor_hide(struct nouveau_crtc *nv_crtc)
916 {
917 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
918 	u32 *push = evo_wait(mast, 16);
919 	if (push) {
920 		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
921 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 1);
922 			evo_data(push, 0x05000000);
923 		} else
924 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
925 			evo_mthd(push, 0x0880 + (nv_crtc->index * 0x400), 1);
926 			evo_data(push, 0x05000000);
927 			evo_mthd(push, 0x089c + (nv_crtc->index * 0x400), 1);
928 			evo_data(push, 0x00000000);
929 		} else {
930 			evo_mthd(push, 0x0480 + (nv_crtc->index * 0x300), 1);
931 			evo_data(push, 0x05000000);
932 			evo_mthd(push, 0x048c + (nv_crtc->index * 0x300), 1);
933 			evo_data(push, 0x00000000);
934 		}
935 		evo_kick(push, mast);
936 	}
937 }
938 
939 static void
nv50_crtc_cursor_show_hide(struct nouveau_crtc * nv_crtc,bool show,bool update)940 nv50_crtc_cursor_show_hide(struct nouveau_crtc *nv_crtc, bool show, bool update)
941 {
942 	struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
943 
944 	if (show)
945 		nv50_crtc_cursor_show(nv_crtc);
946 	else
947 		nv50_crtc_cursor_hide(nv_crtc);
948 
949 	if (update) {
950 		u32 *push = evo_wait(mast, 2);
951 		if (push) {
952 			evo_mthd(push, 0x0080, 1);
953 			evo_data(push, 0x00000000);
954 			evo_kick(push, mast);
955 		}
956 	}
957 }
958 
959 static void
nv50_crtc_dpms(struct drm_crtc * crtc,int mode)960 nv50_crtc_dpms(struct drm_crtc *crtc, int mode)
961 {
962 }
963 
964 static void
nv50_crtc_prepare(struct drm_crtc * crtc)965 nv50_crtc_prepare(struct drm_crtc *crtc)
966 {
967 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
968 	struct nv50_mast *mast = nv50_mast(crtc->dev);
969 	u32 *push;
970 
971 	nv50_display_flip_stop(crtc);
972 
973 	push = evo_wait(mast, 6);
974 	if (push) {
975 		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
976 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
977 			evo_data(push, 0x00000000);
978 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
979 			evo_data(push, 0x40000000);
980 		} else
981 		if (nv50_vers(mast) <  GF110_DISP_CORE_CHANNEL_DMA) {
982 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
983 			evo_data(push, 0x00000000);
984 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
985 			evo_data(push, 0x40000000);
986 			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
987 			evo_data(push, 0x00000000);
988 		} else {
989 			evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
990 			evo_data(push, 0x00000000);
991 			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 1);
992 			evo_data(push, 0x03000000);
993 			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
994 			evo_data(push, 0x00000000);
995 		}
996 
997 		evo_kick(push, mast);
998 	}
999 
1000 	nv50_crtc_cursor_show_hide(nv_crtc, false, false);
1001 }
1002 
1003 static void
nv50_crtc_commit(struct drm_crtc * crtc)1004 nv50_crtc_commit(struct drm_crtc *crtc)
1005 {
1006 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1007 	struct nv50_mast *mast = nv50_mast(crtc->dev);
1008 	u32 *push;
1009 
1010 	push = evo_wait(mast, 32);
1011 	if (push) {
1012 		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
1013 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
1014 			evo_data(push, nv_crtc->fb.handle);
1015 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
1016 			evo_data(push, 0xc0000000);
1017 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1018 		} else
1019 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
1020 			evo_mthd(push, 0x0874 + (nv_crtc->index * 0x400), 1);
1021 			evo_data(push, nv_crtc->fb.handle);
1022 			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
1023 			evo_data(push, 0xc0000000);
1024 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1025 			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
1026 			evo_data(push, mast->base.vram.handle);
1027 		} else {
1028 			evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
1029 			evo_data(push, nv_crtc->fb.handle);
1030 			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 4);
1031 			evo_data(push, 0x83000000);
1032 			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
1033 			evo_data(push, 0x00000000);
1034 			evo_data(push, 0x00000000);
1035 			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
1036 			evo_data(push, mast->base.vram.handle);
1037 			evo_mthd(push, 0x0430 + (nv_crtc->index * 0x300), 1);
1038 			evo_data(push, 0xffffff00);
1039 		}
1040 
1041 		evo_kick(push, mast);
1042 	}
1043 
1044 	nv50_crtc_cursor_show_hide(nv_crtc, nv_crtc->cursor.visible, true);
1045 	nv50_display_flip_next(crtc, crtc->primary->fb, NULL, 1);
1046 }
1047 
1048 static bool
nv50_crtc_mode_fixup(struct drm_crtc * crtc,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1049 nv50_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode,
1050 		     struct drm_display_mode *adjusted_mode)
1051 {
1052 	drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
1053 	return true;
1054 }
1055 
1056 static int
nv50_crtc_swap_fbs(struct drm_crtc * crtc,struct drm_framebuffer * old_fb)1057 nv50_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb)
1058 {
1059 	struct nouveau_framebuffer *nvfb = nouveau_framebuffer(crtc->primary->fb);
1060 	struct nv50_head *head = nv50_head(crtc);
1061 	int ret;
1062 
1063 	ret = nouveau_bo_pin(nvfb->nvbo, TTM_PL_FLAG_VRAM);
1064 	if (ret == 0) {
1065 		if (head->image)
1066 			nouveau_bo_unpin(head->image);
1067 		nouveau_bo_ref(nvfb->nvbo, &head->image);
1068 	}
1069 
1070 	return ret;
1071 }
1072 
1073 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)1074 nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
1075 		   struct drm_display_mode *mode, int x, int y,
1076 		   struct drm_framebuffer *old_fb)
1077 {
1078 	struct nv50_mast *mast = nv50_mast(crtc->dev);
1079 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1080 	struct nouveau_connector *nv_connector;
1081 	u32 ilace = (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 1;
1082 	u32 vscan = (mode->flags & DRM_MODE_FLAG_DBLSCAN) ? 2 : 1;
1083 	u32 hactive, hsynce, hbackp, hfrontp, hblanke, hblanks;
1084 	u32 vactive, vsynce, vbackp, vfrontp, vblanke, vblanks;
1085 	u32 vblan2e = 0, vblan2s = 1, vblankus = 0;
1086 	u32 *push;
1087 	int ret;
1088 
1089 	hactive = mode->htotal;
1090 	hsynce  = mode->hsync_end - mode->hsync_start - 1;
1091 	hbackp  = mode->htotal - mode->hsync_end;
1092 	hblanke = hsynce + hbackp;
1093 	hfrontp = mode->hsync_start - mode->hdisplay;
1094 	hblanks = mode->htotal - hfrontp - 1;
1095 
1096 	vactive = mode->vtotal * vscan / ilace;
1097 	vsynce  = ((mode->vsync_end - mode->vsync_start) * vscan / ilace) - 1;
1098 	vbackp  = (mode->vtotal - mode->vsync_end) * vscan / ilace;
1099 	vblanke = vsynce + vbackp;
1100 	vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace;
1101 	vblanks = vactive - vfrontp - 1;
1102 	/* XXX: Safe underestimate, even "0" works */
1103 	vblankus = (vactive - mode->vdisplay - 2) * hactive;
1104 	vblankus *= 1000;
1105 	vblankus /= mode->clock;
1106 
1107 	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
1108 		vblan2e = vactive + vsynce + vbackp;
1109 		vblan2s = vblan2e + (mode->vdisplay * vscan / ilace);
1110 		vactive = (vactive * 2) + 1;
1111 	}
1112 
1113 	ret = nv50_crtc_swap_fbs(crtc, old_fb);
1114 	if (ret)
1115 		return ret;
1116 
1117 	push = evo_wait(mast, 64);
1118 	if (push) {
1119 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
1120 			evo_mthd(push, 0x0804 + (nv_crtc->index * 0x400), 2);
1121 			evo_data(push, 0x00800000 | mode->clock);
1122 			evo_data(push, (ilace == 2) ? 2 : 0);
1123 			evo_mthd(push, 0x0810 + (nv_crtc->index * 0x400), 6);
1124 			evo_data(push, 0x00000000);
1125 			evo_data(push, (vactive << 16) | hactive);
1126 			evo_data(push, ( vsynce << 16) | hsynce);
1127 			evo_data(push, (vblanke << 16) | hblanke);
1128 			evo_data(push, (vblanks << 16) | hblanks);
1129 			evo_data(push, (vblan2e << 16) | vblan2s);
1130 			evo_mthd(push, 0x082c + (nv_crtc->index * 0x400), 1);
1131 			evo_data(push, 0x00000000);
1132 			evo_mthd(push, 0x0900 + (nv_crtc->index * 0x400), 2);
1133 			evo_data(push, 0x00000311);
1134 			evo_data(push, 0x00000100);
1135 		} else {
1136 			evo_mthd(push, 0x0410 + (nv_crtc->index * 0x300), 6);
1137 			evo_data(push, 0x00000000);
1138 			evo_data(push, (vactive << 16) | hactive);
1139 			evo_data(push, ( vsynce << 16) | hsynce);
1140 			evo_data(push, (vblanke << 16) | hblanke);
1141 			evo_data(push, (vblanks << 16) | hblanks);
1142 			evo_data(push, (vblan2e << 16) | vblan2s);
1143 			evo_mthd(push, 0x042c + (nv_crtc->index * 0x300), 1);
1144 			evo_data(push, 0x00000000); /* ??? */
1145 			evo_mthd(push, 0x0450 + (nv_crtc->index * 0x300), 3);
1146 			evo_data(push, mode->clock * 1000);
1147 			evo_data(push, 0x00200000); /* ??? */
1148 			evo_data(push, mode->clock * 1000);
1149 			evo_mthd(push, 0x04d0 + (nv_crtc->index * 0x300), 2);
1150 			evo_data(push, 0x00000311);
1151 			evo_data(push, 0x00000100);
1152 		}
1153 
1154 		evo_kick(push, mast);
1155 	}
1156 
1157 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
1158 	nv50_crtc_set_dither(nv_crtc, false);
1159 	nv50_crtc_set_scale(nv_crtc, false);
1160 
1161 	/* G94 only accepts this after setting scale */
1162 	if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA)
1163 		nv50_crtc_set_raster_vblank_dmi(nv_crtc, vblankus);
1164 
1165 	nv50_crtc_set_color_vibrance(nv_crtc, false);
1166 	nv50_crtc_set_image(nv_crtc, crtc->primary->fb, x, y, false);
1167 	return 0;
1168 }
1169 
1170 static int
nv50_crtc_mode_set_base(struct drm_crtc * crtc,int x,int y,struct drm_framebuffer * old_fb)1171 nv50_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
1172 			struct drm_framebuffer *old_fb)
1173 {
1174 	struct nouveau_drm *drm = nouveau_drm(crtc->dev);
1175 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1176 	int ret;
1177 
1178 	if (!crtc->primary->fb) {
1179 		NV_DEBUG(drm, "No FB bound\n");
1180 		return 0;
1181 	}
1182 
1183 	ret = nv50_crtc_swap_fbs(crtc, old_fb);
1184 	if (ret)
1185 		return ret;
1186 
1187 	nv50_display_flip_stop(crtc);
1188 	nv50_crtc_set_image(nv_crtc, crtc->primary->fb, x, y, true);
1189 	nv50_display_flip_next(crtc, crtc->primary->fb, NULL, 1);
1190 	return 0;
1191 }
1192 
1193 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)1194 nv50_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
1195 			       struct drm_framebuffer *fb, int x, int y,
1196 			       enum mode_set_atomic state)
1197 {
1198 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1199 	nv50_display_flip_stop(crtc);
1200 	nv50_crtc_set_image(nv_crtc, fb, x, y, true);
1201 	return 0;
1202 }
1203 
1204 static void
nv50_crtc_lut_load(struct drm_crtc * crtc)1205 nv50_crtc_lut_load(struct drm_crtc *crtc)
1206 {
1207 	struct nv50_disp *disp = nv50_disp(crtc->dev);
1208 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1209 	void __iomem *lut = nvbo_kmap_obj_iovirtual(nv_crtc->lut.nvbo);
1210 	int i;
1211 
1212 	for (i = 0; i < 256; i++) {
1213 		u16 r = nv_crtc->lut.r[i] >> 2;
1214 		u16 g = nv_crtc->lut.g[i] >> 2;
1215 		u16 b = nv_crtc->lut.b[i] >> 2;
1216 
1217 		if (disp->disp->oclass < GF110_DISP) {
1218 			writew(r + 0x0000, lut + (i * 0x08) + 0);
1219 			writew(g + 0x0000, lut + (i * 0x08) + 2);
1220 			writew(b + 0x0000, lut + (i * 0x08) + 4);
1221 		} else {
1222 			writew(r + 0x6000, lut + (i * 0x20) + 0);
1223 			writew(g + 0x6000, lut + (i * 0x20) + 2);
1224 			writew(b + 0x6000, lut + (i * 0x20) + 4);
1225 		}
1226 	}
1227 }
1228 
1229 static void
nv50_crtc_disable(struct drm_crtc * crtc)1230 nv50_crtc_disable(struct drm_crtc *crtc)
1231 {
1232 	struct nv50_head *head = nv50_head(crtc);
1233 	evo_sync(crtc->dev);
1234 	if (head->image)
1235 		nouveau_bo_unpin(head->image);
1236 	nouveau_bo_ref(NULL, &head->image);
1237 }
1238 
1239 static int
nv50_crtc_cursor_set(struct drm_crtc * crtc,struct drm_file * file_priv,uint32_t handle,uint32_t width,uint32_t height)1240 nv50_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
1241 		     uint32_t handle, uint32_t width, uint32_t height)
1242 {
1243 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1244 	struct drm_device *dev = crtc->dev;
1245 	struct drm_gem_object *gem;
1246 	struct nouveau_bo *nvbo;
1247 	bool visible = (handle != 0);
1248 	int i, ret = 0;
1249 
1250 	if (visible) {
1251 		if (width != 64 || height != 64)
1252 			return -EINVAL;
1253 
1254 		gem = drm_gem_object_lookup(dev, file_priv, handle);
1255 		if (unlikely(!gem))
1256 			return -ENOENT;
1257 		nvbo = nouveau_gem_object(gem);
1258 
1259 		ret = nouveau_bo_map(nvbo);
1260 		if (ret == 0) {
1261 			for (i = 0; i < 64 * 64; i++) {
1262 				u32 v = nouveau_bo_rd32(nvbo, i);
1263 				nouveau_bo_wr32(nv_crtc->cursor.nvbo, i, v);
1264 			}
1265 			nouveau_bo_unmap(nvbo);
1266 		}
1267 
1268 		drm_gem_object_unreference_unlocked(gem);
1269 	}
1270 
1271 	if (visible != nv_crtc->cursor.visible) {
1272 		nv50_crtc_cursor_show_hide(nv_crtc, visible, true);
1273 		nv_crtc->cursor.visible = visible;
1274 	}
1275 
1276 	return ret;
1277 }
1278 
1279 static int
nv50_crtc_cursor_move(struct drm_crtc * crtc,int x,int y)1280 nv50_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
1281 {
1282 	struct nv50_curs *curs = nv50_curs(crtc);
1283 	struct nv50_chan *chan = nv50_chan(curs);
1284 	nvif_wr32(&chan->user, 0x0084, (y << 16) | (x & 0xffff));
1285 	nvif_wr32(&chan->user, 0x0080, 0x00000000);
1286 	return 0;
1287 }
1288 
1289 static void
nv50_crtc_gamma_set(struct drm_crtc * crtc,u16 * r,u16 * g,u16 * b,uint32_t start,uint32_t size)1290 nv50_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
1291 		    uint32_t start, uint32_t size)
1292 {
1293 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1294 	u32 end = min_t(u32, start + size, 256);
1295 	u32 i;
1296 
1297 	for (i = start; i < end; i++) {
1298 		nv_crtc->lut.r[i] = r[i];
1299 		nv_crtc->lut.g[i] = g[i];
1300 		nv_crtc->lut.b[i] = b[i];
1301 	}
1302 
1303 	nv50_crtc_lut_load(crtc);
1304 }
1305 
1306 static void
nv50_crtc_destroy(struct drm_crtc * crtc)1307 nv50_crtc_destroy(struct drm_crtc *crtc)
1308 {
1309 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1310 	struct nv50_disp *disp = nv50_disp(crtc->dev);
1311 	struct nv50_head *head = nv50_head(crtc);
1312 	struct nv50_fbdma *fbdma;
1313 
1314 	list_for_each_entry(fbdma, &disp->fbdma, head) {
1315 		nvif_object_fini(&fbdma->base[nv_crtc->index]);
1316 	}
1317 
1318 	nv50_dmac_destroy(&head->ovly.base, disp->disp);
1319 	nv50_pioc_destroy(&head->oimm.base);
1320 	nv50_dmac_destroy(&head->sync.base, disp->disp);
1321 	nv50_pioc_destroy(&head->curs.base);
1322 
1323 	/*XXX: this shouldn't be necessary, but the core doesn't call
1324 	 *     disconnect() during the cleanup paths
1325 	 */
1326 	if (head->image)
1327 		nouveau_bo_unpin(head->image);
1328 	nouveau_bo_ref(NULL, &head->image);
1329 
1330 	nouveau_bo_unmap(nv_crtc->cursor.nvbo);
1331 	if (nv_crtc->cursor.nvbo)
1332 		nouveau_bo_unpin(nv_crtc->cursor.nvbo);
1333 	nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
1334 
1335 	nouveau_bo_unmap(nv_crtc->lut.nvbo);
1336 	if (nv_crtc->lut.nvbo)
1337 		nouveau_bo_unpin(nv_crtc->lut.nvbo);
1338 	nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
1339 
1340 	drm_crtc_cleanup(crtc);
1341 	kfree(crtc);
1342 }
1343 
1344 static const struct drm_crtc_helper_funcs nv50_crtc_hfunc = {
1345 	.dpms = nv50_crtc_dpms,
1346 	.prepare = nv50_crtc_prepare,
1347 	.commit = nv50_crtc_commit,
1348 	.mode_fixup = nv50_crtc_mode_fixup,
1349 	.mode_set = nv50_crtc_mode_set,
1350 	.mode_set_base = nv50_crtc_mode_set_base,
1351 	.mode_set_base_atomic = nv50_crtc_mode_set_base_atomic,
1352 	.load_lut = nv50_crtc_lut_load,
1353 	.disable = nv50_crtc_disable,
1354 };
1355 
1356 static const struct drm_crtc_funcs nv50_crtc_func = {
1357 	.cursor_set = nv50_crtc_cursor_set,
1358 	.cursor_move = nv50_crtc_cursor_move,
1359 	.gamma_set = nv50_crtc_gamma_set,
1360 	.set_config = nouveau_crtc_set_config,
1361 	.destroy = nv50_crtc_destroy,
1362 	.page_flip = nouveau_crtc_page_flip,
1363 };
1364 
1365 static void
nv50_cursor_set_pos(struct nouveau_crtc * nv_crtc,int x,int y)1366 nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
1367 {
1368 }
1369 
1370 static void
nv50_cursor_set_offset(struct nouveau_crtc * nv_crtc,uint32_t offset)1371 nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
1372 {
1373 }
1374 
1375 static int
nv50_crtc_create(struct drm_device * dev,int index)1376 nv50_crtc_create(struct drm_device *dev, int index)
1377 {
1378 	struct nv50_disp *disp = nv50_disp(dev);
1379 	struct nv50_head *head;
1380 	struct drm_crtc *crtc;
1381 	int ret, i;
1382 
1383 	head = kzalloc(sizeof(*head), GFP_KERNEL);
1384 	if (!head)
1385 		return -ENOMEM;
1386 
1387 	head->base.index = index;
1388 	head->base.set_dither = nv50_crtc_set_dither;
1389 	head->base.set_scale = nv50_crtc_set_scale;
1390 	head->base.set_color_vibrance = nv50_crtc_set_color_vibrance;
1391 	head->base.color_vibrance = 50;
1392 	head->base.vibrant_hue = 0;
1393 	head->base.cursor.set_offset = nv50_cursor_set_offset;
1394 	head->base.cursor.set_pos = nv50_cursor_set_pos;
1395 	for (i = 0; i < 256; i++) {
1396 		head->base.lut.r[i] = i << 8;
1397 		head->base.lut.g[i] = i << 8;
1398 		head->base.lut.b[i] = i << 8;
1399 	}
1400 
1401 	crtc = &head->base.base;
1402 	drm_crtc_init(dev, crtc, &nv50_crtc_func);
1403 	drm_crtc_helper_add(crtc, &nv50_crtc_hfunc);
1404 	drm_mode_crtc_set_gamma_size(crtc, 256);
1405 
1406 	ret = nouveau_bo_new(dev, 8192, 0x100, TTM_PL_FLAG_VRAM,
1407 			     0, 0x0000, NULL, NULL, &head->base.lut.nvbo);
1408 	if (!ret) {
1409 		ret = nouveau_bo_pin(head->base.lut.nvbo, TTM_PL_FLAG_VRAM);
1410 		if (!ret) {
1411 			ret = nouveau_bo_map(head->base.lut.nvbo);
1412 			if (ret)
1413 				nouveau_bo_unpin(head->base.lut.nvbo);
1414 		}
1415 		if (ret)
1416 			nouveau_bo_ref(NULL, &head->base.lut.nvbo);
1417 	}
1418 
1419 	if (ret)
1420 		goto out;
1421 
1422 	nv50_crtc_lut_load(crtc);
1423 
1424 	/* allocate cursor resources */
1425 	ret = nv50_curs_create(disp->disp, index, &head->curs);
1426 	if (ret)
1427 		goto out;
1428 
1429 	ret = nouveau_bo_new(dev, 64 * 64 * 4, 0x100, TTM_PL_FLAG_VRAM,
1430 			     0, 0x0000, NULL, NULL, &head->base.cursor.nvbo);
1431 	if (!ret) {
1432 		ret = nouveau_bo_pin(head->base.cursor.nvbo, TTM_PL_FLAG_VRAM);
1433 		if (!ret) {
1434 			ret = nouveau_bo_map(head->base.cursor.nvbo);
1435 			if (ret)
1436 				nouveau_bo_unpin(head->base.lut.nvbo);
1437 		}
1438 		if (ret)
1439 			nouveau_bo_ref(NULL, &head->base.cursor.nvbo);
1440 	}
1441 
1442 	if (ret)
1443 		goto out;
1444 
1445 	/* allocate page flip / sync resources */
1446 	ret = nv50_base_create(disp->disp, index, disp->sync->bo.offset,
1447 			      &head->sync);
1448 	if (ret)
1449 		goto out;
1450 
1451 	head->sync.addr = EVO_FLIP_SEM0(index);
1452 	head->sync.data = 0x00000000;
1453 
1454 	/* allocate overlay resources */
1455 	ret = nv50_oimm_create(disp->disp, index, &head->oimm);
1456 	if (ret)
1457 		goto out;
1458 
1459 	ret = nv50_ovly_create(disp->disp, index, disp->sync->bo.offset,
1460 			      &head->ovly);
1461 	if (ret)
1462 		goto out;
1463 
1464 out:
1465 	if (ret)
1466 		nv50_crtc_destroy(crtc);
1467 	return ret;
1468 }
1469 
1470 /******************************************************************************
1471  * DAC
1472  *****************************************************************************/
1473 static void
nv50_dac_dpms(struct drm_encoder * encoder,int mode)1474 nv50_dac_dpms(struct drm_encoder *encoder, int mode)
1475 {
1476 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1477 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1478 	struct {
1479 		struct nv50_disp_mthd_v1 base;
1480 		struct nv50_disp_dac_pwr_v0 pwr;
1481 	} args = {
1482 		.base.version = 1,
1483 		.base.method = NV50_DISP_MTHD_V1_DAC_PWR,
1484 		.base.hasht  = nv_encoder->dcb->hasht,
1485 		.base.hashm  = nv_encoder->dcb->hashm,
1486 		.pwr.state = 1,
1487 		.pwr.data  = 1,
1488 		.pwr.vsync = (mode != DRM_MODE_DPMS_SUSPEND &&
1489 			      mode != DRM_MODE_DPMS_OFF),
1490 		.pwr.hsync = (mode != DRM_MODE_DPMS_STANDBY &&
1491 			      mode != DRM_MODE_DPMS_OFF),
1492 	};
1493 
1494 	nvif_mthd(disp->disp, 0, &args, sizeof(args));
1495 }
1496 
1497 static bool
nv50_dac_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1498 nv50_dac_mode_fixup(struct drm_encoder *encoder,
1499 		    const struct drm_display_mode *mode,
1500 		    struct drm_display_mode *adjusted_mode)
1501 {
1502 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1503 	struct nouveau_connector *nv_connector;
1504 
1505 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1506 	if (nv_connector && nv_connector->native_mode) {
1507 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
1508 			int id = adjusted_mode->base.id;
1509 			*adjusted_mode = *nv_connector->native_mode;
1510 			adjusted_mode->base.id = id;
1511 		}
1512 	}
1513 
1514 	return true;
1515 }
1516 
1517 static void
nv50_dac_commit(struct drm_encoder * encoder)1518 nv50_dac_commit(struct drm_encoder *encoder)
1519 {
1520 }
1521 
1522 static void
nv50_dac_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1523 nv50_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
1524 		  struct drm_display_mode *adjusted_mode)
1525 {
1526 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1527 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1528 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1529 	u32 *push;
1530 
1531 	nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON);
1532 
1533 	push = evo_wait(mast, 8);
1534 	if (push) {
1535 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
1536 			u32 syncs = 0x00000000;
1537 
1538 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1539 				syncs |= 0x00000001;
1540 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1541 				syncs |= 0x00000002;
1542 
1543 			evo_mthd(push, 0x0400 + (nv_encoder->or * 0x080), 2);
1544 			evo_data(push, 1 << nv_crtc->index);
1545 			evo_data(push, syncs);
1546 		} else {
1547 			u32 magic = 0x31ec6000 | (nv_crtc->index << 25);
1548 			u32 syncs = 0x00000001;
1549 
1550 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
1551 				syncs |= 0x00000008;
1552 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
1553 				syncs |= 0x00000010;
1554 
1555 			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
1556 				magic |= 0x00000001;
1557 
1558 			evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
1559 			evo_data(push, syncs);
1560 			evo_data(push, magic);
1561 			evo_mthd(push, 0x0180 + (nv_encoder->or * 0x020), 1);
1562 			evo_data(push, 1 << nv_crtc->index);
1563 		}
1564 
1565 		evo_kick(push, mast);
1566 	}
1567 
1568 	nv_encoder->crtc = encoder->crtc;
1569 }
1570 
1571 static void
nv50_dac_disconnect(struct drm_encoder * encoder)1572 nv50_dac_disconnect(struct drm_encoder *encoder)
1573 {
1574 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1575 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1576 	const int or = nv_encoder->or;
1577 	u32 *push;
1578 
1579 	if (nv_encoder->crtc) {
1580 		nv50_crtc_prepare(nv_encoder->crtc);
1581 
1582 		push = evo_wait(mast, 4);
1583 		if (push) {
1584 			if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
1585 				evo_mthd(push, 0x0400 + (or * 0x080), 1);
1586 				evo_data(push, 0x00000000);
1587 			} else {
1588 				evo_mthd(push, 0x0180 + (or * 0x020), 1);
1589 				evo_data(push, 0x00000000);
1590 			}
1591 			evo_kick(push, mast);
1592 		}
1593 	}
1594 
1595 	nv_encoder->crtc = NULL;
1596 }
1597 
1598 static enum drm_connector_status
nv50_dac_detect(struct drm_encoder * encoder,struct drm_connector * connector)1599 nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector)
1600 {
1601 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1602 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1603 	struct {
1604 		struct nv50_disp_mthd_v1 base;
1605 		struct nv50_disp_dac_load_v0 load;
1606 	} args = {
1607 		.base.version = 1,
1608 		.base.method = NV50_DISP_MTHD_V1_DAC_LOAD,
1609 		.base.hasht  = nv_encoder->dcb->hasht,
1610 		.base.hashm  = nv_encoder->dcb->hashm,
1611 	};
1612 	int ret;
1613 
1614 	args.load.data = nouveau_drm(encoder->dev)->vbios.dactestval;
1615 	if (args.load.data == 0)
1616 		args.load.data = 340;
1617 
1618 	ret = nvif_mthd(disp->disp, 0, &args, sizeof(args));
1619 	if (ret || !args.load.load)
1620 		return connector_status_disconnected;
1621 
1622 	return connector_status_connected;
1623 }
1624 
1625 static void
nv50_dac_destroy(struct drm_encoder * encoder)1626 nv50_dac_destroy(struct drm_encoder *encoder)
1627 {
1628 	drm_encoder_cleanup(encoder);
1629 	kfree(encoder);
1630 }
1631 
1632 static const struct drm_encoder_helper_funcs nv50_dac_hfunc = {
1633 	.dpms = nv50_dac_dpms,
1634 	.mode_fixup = nv50_dac_mode_fixup,
1635 	.prepare = nv50_dac_disconnect,
1636 	.commit = nv50_dac_commit,
1637 	.mode_set = nv50_dac_mode_set,
1638 	.disable = nv50_dac_disconnect,
1639 	.get_crtc = nv50_display_crtc_get,
1640 	.detect = nv50_dac_detect
1641 };
1642 
1643 static const struct drm_encoder_funcs nv50_dac_func = {
1644 	.destroy = nv50_dac_destroy,
1645 };
1646 
1647 static int
nv50_dac_create(struct drm_connector * connector,struct dcb_output * dcbe)1648 nv50_dac_create(struct drm_connector *connector, struct dcb_output *dcbe)
1649 {
1650 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
1651 	struct nouveau_i2c *i2c = nvkm_i2c(&drm->device);
1652 	struct nouveau_encoder *nv_encoder;
1653 	struct drm_encoder *encoder;
1654 	int type = DRM_MODE_ENCODER_DAC;
1655 
1656 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
1657 	if (!nv_encoder)
1658 		return -ENOMEM;
1659 	nv_encoder->dcb = dcbe;
1660 	nv_encoder->or = ffs(dcbe->or) - 1;
1661 	nv_encoder->i2c = i2c->find(i2c, dcbe->i2c_index);
1662 
1663 	encoder = to_drm_encoder(nv_encoder);
1664 	encoder->possible_crtcs = dcbe->heads;
1665 	encoder->possible_clones = 0;
1666 	drm_encoder_init(connector->dev, encoder, &nv50_dac_func, type);
1667 	drm_encoder_helper_add(encoder, &nv50_dac_hfunc);
1668 
1669 	drm_mode_connector_attach_encoder(connector, encoder);
1670 	return 0;
1671 }
1672 
1673 /******************************************************************************
1674  * Audio
1675  *****************************************************************************/
1676 static void
nv50_audio_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode)1677 nv50_audio_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
1678 {
1679 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1680 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1681 	struct nouveau_connector *nv_connector;
1682 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1683 	struct __packed {
1684 		struct {
1685 			struct nv50_disp_mthd_v1 mthd;
1686 			struct nv50_disp_sor_hda_eld_v0 eld;
1687 		} base;
1688 		u8 data[sizeof(nv_connector->base.eld)];
1689 	} args = {
1690 		.base.mthd.version = 1,
1691 		.base.mthd.method  = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
1692 		.base.mthd.hasht   = nv_encoder->dcb->hasht,
1693 		.base.mthd.hashm   = (0xf0ff & nv_encoder->dcb->hashm) |
1694 				     (0x0100 << nv_crtc->index),
1695 	};
1696 
1697 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1698 	if (!drm_detect_monitor_audio(nv_connector->edid))
1699 		return;
1700 
1701 	drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
1702 	memcpy(args.data, nv_connector->base.eld, sizeof(args.data));
1703 
1704 	nvif_mthd(disp->disp, 0, &args, sizeof(args.base) + args.data[2] * 4);
1705 }
1706 
1707 static void
nv50_audio_disconnect(struct drm_encoder * encoder,struct nouveau_crtc * nv_crtc)1708 nv50_audio_disconnect(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
1709 {
1710 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1711 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1712 	struct {
1713 		struct nv50_disp_mthd_v1 base;
1714 		struct nv50_disp_sor_hda_eld_v0 eld;
1715 	} args = {
1716 		.base.version = 1,
1717 		.base.method  = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
1718 		.base.hasht   = nv_encoder->dcb->hasht,
1719 		.base.hashm   = (0xf0ff & nv_encoder->dcb->hashm) |
1720 				(0x0100 << nv_crtc->index),
1721 	};
1722 
1723 	nvif_mthd(disp->disp, 0, &args, sizeof(args));
1724 }
1725 
1726 /******************************************************************************
1727  * HDMI
1728  *****************************************************************************/
1729 static void
nv50_hdmi_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode)1730 nv50_hdmi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
1731 {
1732 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1733 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1734 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1735 	struct {
1736 		struct nv50_disp_mthd_v1 base;
1737 		struct nv50_disp_sor_hdmi_pwr_v0 pwr;
1738 	} args = {
1739 		.base.version = 1,
1740 		.base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
1741 		.base.hasht  = nv_encoder->dcb->hasht,
1742 		.base.hashm  = (0xf0ff & nv_encoder->dcb->hashm) |
1743 			       (0x0100 << nv_crtc->index),
1744 		.pwr.state = 1,
1745 		.pwr.rekey = 56, /* binary driver, and tegra, constant */
1746 	};
1747 	struct nouveau_connector *nv_connector;
1748 	u32 max_ac_packet;
1749 
1750 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1751 	if (!drm_detect_hdmi_monitor(nv_connector->edid))
1752 		return;
1753 
1754 	max_ac_packet  = mode->htotal - mode->hdisplay;
1755 	max_ac_packet -= args.pwr.rekey;
1756 	max_ac_packet -= 18; /* constant from tegra */
1757 	args.pwr.max_ac_packet = max_ac_packet / 32;
1758 
1759 	nvif_mthd(disp->disp, 0, &args, sizeof(args));
1760 	nv50_audio_mode_set(encoder, mode);
1761 }
1762 
1763 static void
nv50_hdmi_disconnect(struct drm_encoder * encoder,struct nouveau_crtc * nv_crtc)1764 nv50_hdmi_disconnect(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
1765 {
1766 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1767 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1768 	struct {
1769 		struct nv50_disp_mthd_v1 base;
1770 		struct nv50_disp_sor_hdmi_pwr_v0 pwr;
1771 	} args = {
1772 		.base.version = 1,
1773 		.base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
1774 		.base.hasht  = nv_encoder->dcb->hasht,
1775 		.base.hashm  = (0xf0ff & nv_encoder->dcb->hashm) |
1776 			       (0x0100 << nv_crtc->index),
1777 	};
1778 
1779 	nvif_mthd(disp->disp, 0, &args, sizeof(args));
1780 }
1781 
1782 /******************************************************************************
1783  * SOR
1784  *****************************************************************************/
1785 static void
nv50_sor_dpms(struct drm_encoder * encoder,int mode)1786 nv50_sor_dpms(struct drm_encoder *encoder, int mode)
1787 {
1788 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1789 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1790 	struct {
1791 		struct nv50_disp_mthd_v1 base;
1792 		struct nv50_disp_sor_pwr_v0 pwr;
1793 	} args = {
1794 		.base.version = 1,
1795 		.base.method = NV50_DISP_MTHD_V1_SOR_PWR,
1796 		.base.hasht  = nv_encoder->dcb->hasht,
1797 		.base.hashm  = nv_encoder->dcb->hashm,
1798 		.pwr.state = mode == DRM_MODE_DPMS_ON,
1799 	};
1800 	struct {
1801 		struct nv50_disp_mthd_v1 base;
1802 		struct nv50_disp_sor_dp_pwr_v0 pwr;
1803 	} link = {
1804 		.base.version = 1,
1805 		.base.method = NV50_DISP_MTHD_V1_SOR_DP_PWR,
1806 		.base.hasht  = nv_encoder->dcb->hasht,
1807 		.base.hashm  = nv_encoder->dcb->hashm,
1808 		.pwr.state = mode == DRM_MODE_DPMS_ON,
1809 	};
1810 	struct drm_device *dev = encoder->dev;
1811 	struct drm_encoder *partner;
1812 
1813 	nv_encoder->last_dpms = mode;
1814 
1815 	list_for_each_entry(partner, &dev->mode_config.encoder_list, head) {
1816 		struct nouveau_encoder *nv_partner = nouveau_encoder(partner);
1817 
1818 		if (partner->encoder_type != DRM_MODE_ENCODER_TMDS)
1819 			continue;
1820 
1821 		if (nv_partner != nv_encoder &&
1822 		    nv_partner->dcb->or == nv_encoder->dcb->or) {
1823 			if (nv_partner->last_dpms == DRM_MODE_DPMS_ON)
1824 				return;
1825 			break;
1826 		}
1827 	}
1828 
1829 	if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
1830 		args.pwr.state = 1;
1831 		nvif_mthd(disp->disp, 0, &args, sizeof(args));
1832 		nvif_mthd(disp->disp, 0, &link, sizeof(link));
1833 	} else {
1834 		nvif_mthd(disp->disp, 0, &args, sizeof(args));
1835 	}
1836 }
1837 
1838 static bool
nv50_sor_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)1839 nv50_sor_mode_fixup(struct drm_encoder *encoder,
1840 		    const struct drm_display_mode *mode,
1841 		    struct drm_display_mode *adjusted_mode)
1842 {
1843 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1844 	struct nouveau_connector *nv_connector;
1845 
1846 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1847 	if (nv_connector && nv_connector->native_mode) {
1848 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
1849 			int id = adjusted_mode->base.id;
1850 			*adjusted_mode = *nv_connector->native_mode;
1851 			adjusted_mode->base.id = id;
1852 		}
1853 	}
1854 
1855 	return true;
1856 }
1857 
1858 static void
nv50_sor_ctrl(struct nouveau_encoder * nv_encoder,u32 mask,u32 data)1859 nv50_sor_ctrl(struct nouveau_encoder *nv_encoder, u32 mask, u32 data)
1860 {
1861 	struct nv50_mast *mast = nv50_mast(nv_encoder->base.base.dev);
1862 	u32 temp = (nv_encoder->ctrl & ~mask) | (data & mask), *push;
1863 	if (temp != nv_encoder->ctrl && (push = evo_wait(mast, 2))) {
1864 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
1865 			evo_mthd(push, 0x0600 + (nv_encoder->or * 0x40), 1);
1866 			evo_data(push, (nv_encoder->ctrl = temp));
1867 		} else {
1868 			evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 1);
1869 			evo_data(push, (nv_encoder->ctrl = temp));
1870 		}
1871 		evo_kick(push, mast);
1872 	}
1873 }
1874 
1875 static void
nv50_sor_disconnect(struct drm_encoder * encoder)1876 nv50_sor_disconnect(struct drm_encoder *encoder)
1877 {
1878 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1879 	struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
1880 
1881 	nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
1882 	nv_encoder->crtc = NULL;
1883 
1884 	if (nv_crtc) {
1885 		nv50_crtc_prepare(&nv_crtc->base);
1886 		nv50_sor_ctrl(nv_encoder, 1 << nv_crtc->index, 0);
1887 		nv50_audio_disconnect(encoder, nv_crtc);
1888 		nv50_hdmi_disconnect(&nv_encoder->base.base, nv_crtc);
1889 	}
1890 }
1891 
1892 static void
nv50_sor_commit(struct drm_encoder * encoder)1893 nv50_sor_commit(struct drm_encoder *encoder)
1894 {
1895 }
1896 
1897 static void
nv50_sor_mode_set(struct drm_encoder * encoder,struct drm_display_mode * umode,struct drm_display_mode * mode)1898 nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
1899 		  struct drm_display_mode *mode)
1900 {
1901 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
1902 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
1903 	struct {
1904 		struct nv50_disp_mthd_v1 base;
1905 		struct nv50_disp_sor_lvds_script_v0 lvds;
1906 	} lvds = {
1907 		.base.version = 1,
1908 		.base.method  = NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT,
1909 		.base.hasht   = nv_encoder->dcb->hasht,
1910 		.base.hashm   = nv_encoder->dcb->hashm,
1911 	};
1912 	struct nv50_disp *disp = nv50_disp(encoder->dev);
1913 	struct nv50_mast *mast = nv50_mast(encoder->dev);
1914 	struct drm_device *dev = encoder->dev;
1915 	struct nouveau_drm *drm = nouveau_drm(dev);
1916 	struct nouveau_connector *nv_connector;
1917 	struct nvbios *bios = &drm->vbios;
1918 	u32 mask, ctrl;
1919 	u8 owner = 1 << nv_crtc->index;
1920 	u8 proto = 0xf;
1921 	u8 depth = 0x0;
1922 
1923 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
1924 	nv_encoder->crtc = encoder->crtc;
1925 
1926 	switch (nv_encoder->dcb->type) {
1927 	case DCB_OUTPUT_TMDS:
1928 		if (nv_encoder->dcb->sorconf.link & 1) {
1929 			if (mode->clock < 165000)
1930 				proto = 0x1;
1931 			else
1932 				proto = 0x5;
1933 		} else {
1934 			proto = 0x2;
1935 		}
1936 
1937 		nv50_hdmi_mode_set(&nv_encoder->base.base, mode);
1938 		break;
1939 	case DCB_OUTPUT_LVDS:
1940 		proto = 0x0;
1941 
1942 		if (bios->fp_no_ddc) {
1943 			if (bios->fp.dual_link)
1944 				lvds.lvds.script |= 0x0100;
1945 			if (bios->fp.if_is_24bit)
1946 				lvds.lvds.script |= 0x0200;
1947 		} else {
1948 			if (nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
1949 				if (((u8 *)nv_connector->edid)[121] == 2)
1950 					lvds.lvds.script |= 0x0100;
1951 			} else
1952 			if (mode->clock >= bios->fp.duallink_transition_clk) {
1953 				lvds.lvds.script |= 0x0100;
1954 			}
1955 
1956 			if (lvds.lvds.script & 0x0100) {
1957 				if (bios->fp.strapless_is_24bit & 2)
1958 					lvds.lvds.script |= 0x0200;
1959 			} else {
1960 				if (bios->fp.strapless_is_24bit & 1)
1961 					lvds.lvds.script |= 0x0200;
1962 			}
1963 
1964 			if (nv_connector->base.display_info.bpc == 8)
1965 				lvds.lvds.script |= 0x0200;
1966 		}
1967 
1968 		nvif_mthd(disp->disp, 0, &lvds, sizeof(lvds));
1969 		break;
1970 	case DCB_OUTPUT_DP:
1971 		if (nv_connector->base.display_info.bpc == 6) {
1972 			nv_encoder->dp.datarate = mode->clock * 18 / 8;
1973 			depth = 0x2;
1974 		} else
1975 		if (nv_connector->base.display_info.bpc == 8) {
1976 			nv_encoder->dp.datarate = mode->clock * 24 / 8;
1977 			depth = 0x5;
1978 		} else {
1979 			nv_encoder->dp.datarate = mode->clock * 30 / 8;
1980 			depth = 0x6;
1981 		}
1982 
1983 		if (nv_encoder->dcb->sorconf.link & 1)
1984 			proto = 0x8;
1985 		else
1986 			proto = 0x9;
1987 		nv50_audio_mode_set(encoder, mode);
1988 		break;
1989 	default:
1990 		BUG_ON(1);
1991 		break;
1992 	}
1993 
1994 	nv50_sor_dpms(&nv_encoder->base.base, DRM_MODE_DPMS_ON);
1995 
1996 	if (nv50_vers(mast) >= GF110_DISP) {
1997 		u32 *push = evo_wait(mast, 3);
1998 		if (push) {
1999 			u32 magic = 0x31ec6000 | (nv_crtc->index << 25);
2000 			u32 syncs = 0x00000001;
2001 
2002 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2003 				syncs |= 0x00000008;
2004 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2005 				syncs |= 0x00000010;
2006 
2007 			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
2008 				magic |= 0x00000001;
2009 
2010 			evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
2011 			evo_data(push, syncs | (depth << 6));
2012 			evo_data(push, magic);
2013 			evo_kick(push, mast);
2014 		}
2015 
2016 		ctrl = proto << 8;
2017 		mask = 0x00000f00;
2018 	} else {
2019 		ctrl = (depth << 16) | (proto << 8);
2020 		if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2021 			ctrl |= 0x00001000;
2022 		if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2023 			ctrl |= 0x00002000;
2024 		mask = 0x000f3f00;
2025 	}
2026 
2027 	nv50_sor_ctrl(nv_encoder, mask | owner, ctrl | owner);
2028 }
2029 
2030 static void
nv50_sor_destroy(struct drm_encoder * encoder)2031 nv50_sor_destroy(struct drm_encoder *encoder)
2032 {
2033 	drm_encoder_cleanup(encoder);
2034 	kfree(encoder);
2035 }
2036 
2037 static const struct drm_encoder_helper_funcs nv50_sor_hfunc = {
2038 	.dpms = nv50_sor_dpms,
2039 	.mode_fixup = nv50_sor_mode_fixup,
2040 	.prepare = nv50_sor_disconnect,
2041 	.commit = nv50_sor_commit,
2042 	.mode_set = nv50_sor_mode_set,
2043 	.disable = nv50_sor_disconnect,
2044 	.get_crtc = nv50_display_crtc_get,
2045 };
2046 
2047 static const struct drm_encoder_funcs nv50_sor_func = {
2048 	.destroy = nv50_sor_destroy,
2049 };
2050 
2051 static int
nv50_sor_create(struct drm_connector * connector,struct dcb_output * dcbe)2052 nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
2053 {
2054 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
2055 	struct nouveau_i2c *i2c = nvkm_i2c(&drm->device);
2056 	struct nouveau_encoder *nv_encoder;
2057 	struct drm_encoder *encoder;
2058 	int type;
2059 
2060 	switch (dcbe->type) {
2061 	case DCB_OUTPUT_LVDS: type = DRM_MODE_ENCODER_LVDS; break;
2062 	case DCB_OUTPUT_TMDS:
2063 	case DCB_OUTPUT_DP:
2064 	default:
2065 		type = DRM_MODE_ENCODER_TMDS;
2066 		break;
2067 	}
2068 
2069 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
2070 	if (!nv_encoder)
2071 		return -ENOMEM;
2072 	nv_encoder->dcb = dcbe;
2073 	nv_encoder->or = ffs(dcbe->or) - 1;
2074 	nv_encoder->i2c = i2c->find(i2c, dcbe->i2c_index);
2075 	nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
2076 
2077 	encoder = to_drm_encoder(nv_encoder);
2078 	encoder->possible_crtcs = dcbe->heads;
2079 	encoder->possible_clones = 0;
2080 	drm_encoder_init(connector->dev, encoder, &nv50_sor_func, type);
2081 	drm_encoder_helper_add(encoder, &nv50_sor_hfunc);
2082 
2083 	drm_mode_connector_attach_encoder(connector, encoder);
2084 	return 0;
2085 }
2086 
2087 /******************************************************************************
2088  * PIOR
2089  *****************************************************************************/
2090 
2091 static void
nv50_pior_dpms(struct drm_encoder * encoder,int mode)2092 nv50_pior_dpms(struct drm_encoder *encoder, int mode)
2093 {
2094 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2095 	struct nv50_disp *disp = nv50_disp(encoder->dev);
2096 	struct {
2097 		struct nv50_disp_mthd_v1 base;
2098 		struct nv50_disp_pior_pwr_v0 pwr;
2099 	} args = {
2100 		.base.version = 1,
2101 		.base.method = NV50_DISP_MTHD_V1_PIOR_PWR,
2102 		.base.hasht  = nv_encoder->dcb->hasht,
2103 		.base.hashm  = nv_encoder->dcb->hashm,
2104 		.pwr.state = mode == DRM_MODE_DPMS_ON,
2105 		.pwr.type = nv_encoder->dcb->type,
2106 	};
2107 
2108 	nvif_mthd(disp->disp, 0, &args, sizeof(args));
2109 }
2110 
2111 static bool
nv50_pior_mode_fixup(struct drm_encoder * encoder,const struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)2112 nv50_pior_mode_fixup(struct drm_encoder *encoder,
2113 		     const struct drm_display_mode *mode,
2114 		     struct drm_display_mode *adjusted_mode)
2115 {
2116 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2117 	struct nouveau_connector *nv_connector;
2118 
2119 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
2120 	if (nv_connector && nv_connector->native_mode) {
2121 		if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
2122 			int id = adjusted_mode->base.id;
2123 			*adjusted_mode = *nv_connector->native_mode;
2124 			adjusted_mode->base.id = id;
2125 		}
2126 	}
2127 
2128 	adjusted_mode->clock *= 2;
2129 	return true;
2130 }
2131 
2132 static void
nv50_pior_commit(struct drm_encoder * encoder)2133 nv50_pior_commit(struct drm_encoder *encoder)
2134 {
2135 }
2136 
2137 static void
nv50_pior_mode_set(struct drm_encoder * encoder,struct drm_display_mode * mode,struct drm_display_mode * adjusted_mode)2138 nv50_pior_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
2139 		   struct drm_display_mode *adjusted_mode)
2140 {
2141 	struct nv50_mast *mast = nv50_mast(encoder->dev);
2142 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2143 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
2144 	struct nouveau_connector *nv_connector;
2145 	u8 owner = 1 << nv_crtc->index;
2146 	u8 proto, depth;
2147 	u32 *push;
2148 
2149 	nv_connector = nouveau_encoder_connector_get(nv_encoder);
2150 	switch (nv_connector->base.display_info.bpc) {
2151 	case 10: depth = 0x6; break;
2152 	case  8: depth = 0x5; break;
2153 	case  6: depth = 0x2; break;
2154 	default: depth = 0x0; break;
2155 	}
2156 
2157 	switch (nv_encoder->dcb->type) {
2158 	case DCB_OUTPUT_TMDS:
2159 	case DCB_OUTPUT_DP:
2160 		proto = 0x0;
2161 		break;
2162 	default:
2163 		BUG_ON(1);
2164 		break;
2165 	}
2166 
2167 	nv50_pior_dpms(encoder, DRM_MODE_DPMS_ON);
2168 
2169 	push = evo_wait(mast, 8);
2170 	if (push) {
2171 		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
2172 			u32 ctrl = (depth << 16) | (proto << 8) | owner;
2173 			if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2174 				ctrl |= 0x00001000;
2175 			if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2176 				ctrl |= 0x00002000;
2177 			evo_mthd(push, 0x0700 + (nv_encoder->or * 0x040), 1);
2178 			evo_data(push, ctrl);
2179 		}
2180 
2181 		evo_kick(push, mast);
2182 	}
2183 
2184 	nv_encoder->crtc = encoder->crtc;
2185 }
2186 
2187 static void
nv50_pior_disconnect(struct drm_encoder * encoder)2188 nv50_pior_disconnect(struct drm_encoder *encoder)
2189 {
2190 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2191 	struct nv50_mast *mast = nv50_mast(encoder->dev);
2192 	const int or = nv_encoder->or;
2193 	u32 *push;
2194 
2195 	if (nv_encoder->crtc) {
2196 		nv50_crtc_prepare(nv_encoder->crtc);
2197 
2198 		push = evo_wait(mast, 4);
2199 		if (push) {
2200 			if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
2201 				evo_mthd(push, 0x0700 + (or * 0x040), 1);
2202 				evo_data(push, 0x00000000);
2203 			}
2204 			evo_kick(push, mast);
2205 		}
2206 	}
2207 
2208 	nv_encoder->crtc = NULL;
2209 }
2210 
2211 static void
nv50_pior_destroy(struct drm_encoder * encoder)2212 nv50_pior_destroy(struct drm_encoder *encoder)
2213 {
2214 	drm_encoder_cleanup(encoder);
2215 	kfree(encoder);
2216 }
2217 
2218 static const struct drm_encoder_helper_funcs nv50_pior_hfunc = {
2219 	.dpms = nv50_pior_dpms,
2220 	.mode_fixup = nv50_pior_mode_fixup,
2221 	.prepare = nv50_pior_disconnect,
2222 	.commit = nv50_pior_commit,
2223 	.mode_set = nv50_pior_mode_set,
2224 	.disable = nv50_pior_disconnect,
2225 	.get_crtc = nv50_display_crtc_get,
2226 };
2227 
2228 static const struct drm_encoder_funcs nv50_pior_func = {
2229 	.destroy = nv50_pior_destroy,
2230 };
2231 
2232 static int
nv50_pior_create(struct drm_connector * connector,struct dcb_output * dcbe)2233 nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
2234 {
2235 	struct nouveau_drm *drm = nouveau_drm(connector->dev);
2236 	struct nouveau_i2c *i2c = nvkm_i2c(&drm->device);
2237 	struct nouveau_i2c_port *ddc = NULL;
2238 	struct nouveau_encoder *nv_encoder;
2239 	struct drm_encoder *encoder;
2240 	int type;
2241 
2242 	switch (dcbe->type) {
2243 	case DCB_OUTPUT_TMDS:
2244 		ddc  = i2c->find_type(i2c, NV_I2C_TYPE_EXTDDC(dcbe->extdev));
2245 		type = DRM_MODE_ENCODER_TMDS;
2246 		break;
2247 	case DCB_OUTPUT_DP:
2248 		ddc  = i2c->find_type(i2c, NV_I2C_TYPE_EXTAUX(dcbe->extdev));
2249 		type = DRM_MODE_ENCODER_TMDS;
2250 		break;
2251 	default:
2252 		return -ENODEV;
2253 	}
2254 
2255 	nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
2256 	if (!nv_encoder)
2257 		return -ENOMEM;
2258 	nv_encoder->dcb = dcbe;
2259 	nv_encoder->or = ffs(dcbe->or) - 1;
2260 	nv_encoder->i2c = ddc;
2261 
2262 	encoder = to_drm_encoder(nv_encoder);
2263 	encoder->possible_crtcs = dcbe->heads;
2264 	encoder->possible_clones = 0;
2265 	drm_encoder_init(connector->dev, encoder, &nv50_pior_func, type);
2266 	drm_encoder_helper_add(encoder, &nv50_pior_hfunc);
2267 
2268 	drm_mode_connector_attach_encoder(connector, encoder);
2269 	return 0;
2270 }
2271 
2272 /******************************************************************************
2273  * Framebuffer
2274  *****************************************************************************/
2275 
2276 static void
nv50_fbdma_fini(struct nv50_fbdma * fbdma)2277 nv50_fbdma_fini(struct nv50_fbdma *fbdma)
2278 {
2279 	int i;
2280 	for (i = 0; i < ARRAY_SIZE(fbdma->base); i++)
2281 		nvif_object_fini(&fbdma->base[i]);
2282 	nvif_object_fini(&fbdma->core);
2283 	list_del(&fbdma->head);
2284 	kfree(fbdma);
2285 }
2286 
2287 static int
nv50_fbdma_init(struct drm_device * dev,u32 name,u64 offset,u64 length,u8 kind)2288 nv50_fbdma_init(struct drm_device *dev, u32 name, u64 offset, u64 length, u8 kind)
2289 {
2290 	struct nouveau_drm *drm = nouveau_drm(dev);
2291 	struct nv50_disp *disp = nv50_disp(dev);
2292 	struct nv50_mast *mast = nv50_mast(dev);
2293 	struct __attribute__ ((packed)) {
2294 		struct nv_dma_v0 base;
2295 		union {
2296 			struct nv50_dma_v0 nv50;
2297 			struct gf100_dma_v0 gf100;
2298 			struct gf110_dma_v0 gf110;
2299 		};
2300 	} args = {};
2301 	struct nv50_fbdma *fbdma;
2302 	struct drm_crtc *crtc;
2303 	u32 size = sizeof(args.base);
2304 	int ret;
2305 
2306 	list_for_each_entry(fbdma, &disp->fbdma, head) {
2307 		if (fbdma->core.handle == name)
2308 			return 0;
2309 	}
2310 
2311 	fbdma = kzalloc(sizeof(*fbdma), GFP_KERNEL);
2312 	if (!fbdma)
2313 		return -ENOMEM;
2314 	list_add(&fbdma->head, &disp->fbdma);
2315 
2316 	args.base.target = NV_DMA_V0_TARGET_VRAM;
2317 	args.base.access = NV_DMA_V0_ACCESS_RDWR;
2318 	args.base.start = offset;
2319 	args.base.limit = offset + length - 1;
2320 
2321 	if (drm->device.info.chipset < 0x80) {
2322 		args.nv50.part = NV50_DMA_V0_PART_256;
2323 		size += sizeof(args.nv50);
2324 	} else
2325 	if (drm->device.info.chipset < 0xc0) {
2326 		args.nv50.part = NV50_DMA_V0_PART_256;
2327 		args.nv50.kind = kind;
2328 		size += sizeof(args.nv50);
2329 	} else
2330 	if (drm->device.info.chipset < 0xd0) {
2331 		args.gf100.kind = kind;
2332 		size += sizeof(args.gf100);
2333 	} else {
2334 		args.gf110.page = GF110_DMA_V0_PAGE_LP;
2335 		args.gf110.kind = kind;
2336 		size += sizeof(args.gf110);
2337 	}
2338 
2339 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2340 		struct nv50_head *head = nv50_head(crtc);
2341 		int ret = nvif_object_init(&head->sync.base.base.user, NULL,
2342 					    name, NV_DMA_IN_MEMORY, &args, size,
2343 					   &fbdma->base[head->base.index]);
2344 		if (ret) {
2345 			nv50_fbdma_fini(fbdma);
2346 			return ret;
2347 		}
2348 	}
2349 
2350 	ret = nvif_object_init(&mast->base.base.user, NULL, name,
2351 				NV_DMA_IN_MEMORY, &args, size,
2352 			       &fbdma->core);
2353 	if (ret) {
2354 		nv50_fbdma_fini(fbdma);
2355 		return ret;
2356 	}
2357 
2358 	return 0;
2359 }
2360 
2361 static void
nv50_fb_dtor(struct drm_framebuffer * fb)2362 nv50_fb_dtor(struct drm_framebuffer *fb)
2363 {
2364 }
2365 
2366 static int
nv50_fb_ctor(struct drm_framebuffer * fb)2367 nv50_fb_ctor(struct drm_framebuffer *fb)
2368 {
2369 	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
2370 	struct nouveau_drm *drm = nouveau_drm(fb->dev);
2371 	struct nouveau_bo *nvbo = nv_fb->nvbo;
2372 	struct nv50_disp *disp = nv50_disp(fb->dev);
2373 	u8 kind = nouveau_bo_tile_layout(nvbo) >> 8;
2374 	u8 tile = nvbo->tile_mode;
2375 
2376 	if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
2377 		NV_ERROR(drm, "framebuffer requires contiguous bo\n");
2378 		return -EINVAL;
2379 	}
2380 
2381 	if (drm->device.info.chipset >= 0xc0)
2382 		tile >>= 4; /* yep.. */
2383 
2384 	switch (fb->depth) {
2385 	case  8: nv_fb->r_format = 0x1e00; break;
2386 	case 15: nv_fb->r_format = 0xe900; break;
2387 	case 16: nv_fb->r_format = 0xe800; break;
2388 	case 24:
2389 	case 32: nv_fb->r_format = 0xcf00; break;
2390 	case 30: nv_fb->r_format = 0xd100; break;
2391 	default:
2392 		 NV_ERROR(drm, "unknown depth %d\n", fb->depth);
2393 		 return -EINVAL;
2394 	}
2395 
2396 	if (disp->disp->oclass < G82_DISP) {
2397 		nv_fb->r_pitch   = kind ? (((fb->pitches[0] / 4) << 4) | tile) :
2398 					    (fb->pitches[0] | 0x00100000);
2399 		nv_fb->r_format |= kind << 16;
2400 	} else
2401 	if (disp->disp->oclass < GF110_DISP) {
2402 		nv_fb->r_pitch  = kind ? (((fb->pitches[0] / 4) << 4) | tile) :
2403 					   (fb->pitches[0] | 0x00100000);
2404 	} else {
2405 		nv_fb->r_pitch  = kind ? (((fb->pitches[0] / 4) << 4) | tile) :
2406 					   (fb->pitches[0] | 0x01000000);
2407 	}
2408 	nv_fb->r_handle = 0xffff0000 | kind;
2409 
2410 	return nv50_fbdma_init(fb->dev, nv_fb->r_handle, 0,
2411 			       drm->device.info.ram_user, kind);
2412 }
2413 
2414 /******************************************************************************
2415  * Init
2416  *****************************************************************************/
2417 
2418 void
nv50_display_fini(struct drm_device * dev)2419 nv50_display_fini(struct drm_device *dev)
2420 {
2421 }
2422 
2423 int
nv50_display_init(struct drm_device * dev)2424 nv50_display_init(struct drm_device *dev)
2425 {
2426 	struct nv50_disp *disp = nv50_disp(dev);
2427 	struct drm_crtc *crtc;
2428 	u32 *push;
2429 
2430 	push = evo_wait(nv50_mast(dev), 32);
2431 	if (!push)
2432 		return -EBUSY;
2433 
2434 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2435 		struct nv50_sync *sync = nv50_sync(crtc);
2436 		nouveau_bo_wr32(disp->sync, sync->addr / 4, sync->data);
2437 	}
2438 
2439 	evo_mthd(push, 0x0088, 1);
2440 	evo_data(push, nv50_mast(dev)->base.sync.handle);
2441 	evo_kick(push, nv50_mast(dev));
2442 	return 0;
2443 }
2444 
2445 void
nv50_display_destroy(struct drm_device * dev)2446 nv50_display_destroy(struct drm_device *dev)
2447 {
2448 	struct nv50_disp *disp = nv50_disp(dev);
2449 	struct nv50_fbdma *fbdma, *fbtmp;
2450 
2451 	list_for_each_entry_safe(fbdma, fbtmp, &disp->fbdma, head) {
2452 		nv50_fbdma_fini(fbdma);
2453 	}
2454 
2455 	nv50_dmac_destroy(&disp->mast.base, disp->disp);
2456 
2457 	nouveau_bo_unmap(disp->sync);
2458 	if (disp->sync)
2459 		nouveau_bo_unpin(disp->sync);
2460 	nouveau_bo_ref(NULL, &disp->sync);
2461 
2462 	nouveau_display(dev)->priv = NULL;
2463 	kfree(disp);
2464 }
2465 
2466 int
nv50_display_create(struct drm_device * dev)2467 nv50_display_create(struct drm_device *dev)
2468 {
2469 	struct nvif_device *device = &nouveau_drm(dev)->device;
2470 	struct nouveau_drm *drm = nouveau_drm(dev);
2471 	struct dcb_table *dcb = &drm->vbios.dcb;
2472 	struct drm_connector *connector, *tmp;
2473 	struct nv50_disp *disp;
2474 	struct dcb_output *dcbe;
2475 	int crtcs, ret, i;
2476 
2477 	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
2478 	if (!disp)
2479 		return -ENOMEM;
2480 	INIT_LIST_HEAD(&disp->fbdma);
2481 
2482 	nouveau_display(dev)->priv = disp;
2483 	nouveau_display(dev)->dtor = nv50_display_destroy;
2484 	nouveau_display(dev)->init = nv50_display_init;
2485 	nouveau_display(dev)->fini = nv50_display_fini;
2486 	nouveau_display(dev)->fb_ctor = nv50_fb_ctor;
2487 	nouveau_display(dev)->fb_dtor = nv50_fb_dtor;
2488 	disp->disp = &nouveau_display(dev)->disp;
2489 
2490 	/* small shared memory area we use for notifiers and semaphores */
2491 	ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
2492 			     0, 0x0000, NULL, NULL, &disp->sync);
2493 	if (!ret) {
2494 		ret = nouveau_bo_pin(disp->sync, TTM_PL_FLAG_VRAM);
2495 		if (!ret) {
2496 			ret = nouveau_bo_map(disp->sync);
2497 			if (ret)
2498 				nouveau_bo_unpin(disp->sync);
2499 		}
2500 		if (ret)
2501 			nouveau_bo_ref(NULL, &disp->sync);
2502 	}
2503 
2504 	if (ret)
2505 		goto out;
2506 
2507 	/* allocate master evo channel */
2508 	ret = nv50_core_create(disp->disp, disp->sync->bo.offset,
2509 			      &disp->mast);
2510 	if (ret)
2511 		goto out;
2512 
2513 	/* create crtc objects to represent the hw heads */
2514 	if (disp->disp->oclass >= GF110_DISP)
2515 		crtcs = nvif_rd32(device, 0x022448);
2516 	else
2517 		crtcs = 2;
2518 
2519 	for (i = 0; i < crtcs; i++) {
2520 		ret = nv50_crtc_create(dev, i);
2521 		if (ret)
2522 			goto out;
2523 	}
2524 
2525 	/* create encoder/connector objects based on VBIOS DCB table */
2526 	for (i = 0, dcbe = &dcb->entry[0]; i < dcb->entries; i++, dcbe++) {
2527 		connector = nouveau_connector_create(dev, dcbe->connector);
2528 		if (IS_ERR(connector))
2529 			continue;
2530 
2531 		if (dcbe->location == DCB_LOC_ON_CHIP) {
2532 			switch (dcbe->type) {
2533 			case DCB_OUTPUT_TMDS:
2534 			case DCB_OUTPUT_LVDS:
2535 			case DCB_OUTPUT_DP:
2536 				ret = nv50_sor_create(connector, dcbe);
2537 				break;
2538 			case DCB_OUTPUT_ANALOG:
2539 				ret = nv50_dac_create(connector, dcbe);
2540 				break;
2541 			default:
2542 				ret = -ENODEV;
2543 				break;
2544 			}
2545 		} else {
2546 			ret = nv50_pior_create(connector, dcbe);
2547 		}
2548 
2549 		if (ret) {
2550 			NV_WARN(drm, "failed to create encoder %d/%d/%d: %d\n",
2551 				     dcbe->location, dcbe->type,
2552 				     ffs(dcbe->or) - 1, ret);
2553 			ret = 0;
2554 		}
2555 	}
2556 
2557 	/* cull any connectors we created that don't have an encoder */
2558 	list_for_each_entry_safe(connector, tmp, &dev->mode_config.connector_list, head) {
2559 		if (connector->encoder_ids[0])
2560 			continue;
2561 
2562 		NV_WARN(drm, "%s has no encoders, removing\n",
2563 			connector->name);
2564 		connector->funcs->destroy(connector);
2565 	}
2566 
2567 out:
2568 	if (ret)
2569 		nv50_display_destroy(dev);
2570 	return ret;
2571 }
2572