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Linux 2.6.33-rc6
[cris-mirror.git] / drivers / gpu / drm / nouveau / nv50_display.c
blob90f0bf59fbcd191dabcb5803f50537938a481405
1 /*
2 * Copyright (C) 2008 Maarten Maathuis.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include "nv50_display.h"
28 #include "nouveau_crtc.h"
29 #include "nouveau_encoder.h"
30 #include "nouveau_connector.h"
31 #include "nouveau_fb.h"
32 #include "drm_crtc_helper.h"
33
34 static void
35 nv50_evo_channel_del(struct nouveau_channel **pchan)
36 {
37 struct nouveau_channel *chan = *pchan;
38
39 if (!chan)
40 return;
41 *pchan = NULL;
42
43 nouveau_gpuobj_channel_takedown(chan);
44 nouveau_bo_ref(NULL, &chan->pushbuf_bo);
45
46 if (chan->user)
47 iounmap(chan->user);
48
49 kfree(chan);
50 }
51
52 static int
53 nv50_evo_dmaobj_new(struct nouveau_channel *evo, uint32_t class, uint32_t name,
54 uint32_t tile_flags, uint32_t magic_flags,
55 uint32_t offset, uint32_t limit)
56 {
57 struct drm_nouveau_private *dev_priv = evo->dev->dev_private;
58 struct drm_device *dev = evo->dev;
59 struct nouveau_gpuobj *obj = NULL;
60 int ret;
61
62 ret = nouveau_gpuobj_new(dev, evo, 6*4, 32, 0, &obj);
63 if (ret)
64 return ret;
65 obj->engine = NVOBJ_ENGINE_DISPLAY;
66
67 ret = nouveau_gpuobj_ref_add(dev, evo, name, obj, NULL);
68 if (ret) {
69 nouveau_gpuobj_del(dev, &obj);
70 return ret;
71 }
72
73 dev_priv->engine.instmem.prepare_access(dev, true);
74 nv_wo32(dev, obj, 0, (tile_flags << 22) | (magic_flags << 16) | class);
75 nv_wo32(dev, obj, 1, limit);
76 nv_wo32(dev, obj, 2, offset);
77 nv_wo32(dev, obj, 3, 0x00000000);
78 nv_wo32(dev, obj, 4, 0x00000000);
79 nv_wo32(dev, obj, 5, 0x00010000);
80 dev_priv->engine.instmem.finish_access(dev);
81
82 return 0;
83 }
84
85 static int
86 nv50_evo_channel_new(struct drm_device *dev, struct nouveau_channel **pchan)
87 {
88 struct drm_nouveau_private *dev_priv = dev->dev_private;
89 struct nouveau_channel *chan;
90 int ret;
91
92 chan = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
93 if (!chan)
94 return -ENOMEM;
95 *pchan = chan;
96
97 chan->id = -1;
98 chan->dev = dev;
99 chan->user_get = 4;
100 chan->user_put = 0;
101
102 INIT_LIST_HEAD(&chan->ramht_refs);
103
104 ret = nouveau_gpuobj_new_ref(dev, NULL, NULL, 0, 32768, 0x1000,
105 NVOBJ_FLAG_ZERO_ALLOC, &chan->ramin);
106 if (ret) {
107 NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret);
108 nv50_evo_channel_del(pchan);
109 return ret;
110 }
111
112 ret = nouveau_mem_init_heap(&chan->ramin_heap, chan->ramin->gpuobj->
113 im_pramin->start, 32768);
114 if (ret) {
115 NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret);
116 nv50_evo_channel_del(pchan);
117 return ret;
118 }
119
120 ret = nouveau_gpuobj_new_ref(dev, chan, chan, 0, 4096, 16,
121 0, &chan->ramht);
122 if (ret) {
123 NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret);
124 nv50_evo_channel_del(pchan);
125 return ret;
126 }
127
128 if (dev_priv->chipset != 0x50) {
129 ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB16, 0x70, 0x19,
130 0, 0xffffffff);
131 if (ret) {
132 nv50_evo_channel_del(pchan);
133 return ret;
134 }
135
136
137 ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoFB32, 0x7a, 0x19,
138 0, 0xffffffff);
139 if (ret) {
140 nv50_evo_channel_del(pchan);
141 return ret;
142 }
143 }
144
145 ret = nv50_evo_dmaobj_new(chan, 0x3d, NvEvoVRAM, 0, 0x19,
146 0, nouveau_mem_fb_amount(dev));
147 if (ret) {
148 nv50_evo_channel_del(pchan);
149 return ret;
150 }
151
152 ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0,
153 false, true, &chan->pushbuf_bo);
154 if (ret == 0)
155 ret = nouveau_bo_pin(chan->pushbuf_bo, TTM_PL_FLAG_VRAM);
156 if (ret) {
157 NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret);
158 nv50_evo_channel_del(pchan);
159 return ret;
160 }
161
162 ret = nouveau_bo_map(chan->pushbuf_bo);
163 if (ret) {
164 NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret);
165 nv50_evo_channel_del(pchan);
166 return ret;
167 }
168
169 chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
170 NV50_PDISPLAY_USER(0), PAGE_SIZE);
171 if (!chan->user) {
172 NV_ERROR(dev, "Error mapping EVO control regs.\n");
173 nv50_evo_channel_del(pchan);
174 return -ENOMEM;
175 }
176
177 return 0;
178 }
179
180 int
181 nv50_display_init(struct drm_device *dev)
182 {
183 struct drm_nouveau_private *dev_priv = dev->dev_private;
184 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
185 struct nouveau_channel *evo = dev_priv->evo;
186 struct drm_connector *connector;
187 uint32_t val, ram_amount, hpd_en[2];
188 uint64_t start;
189 int ret, i;
190
191 NV_DEBUG_KMS(dev, "\n");
192
193 nv_wr32(dev, 0x00610184, nv_rd32(dev, 0x00614004));
194 /*
195 * I think the 0x006101XX range is some kind of main control area
196 * that enables things.
197 */
198 /* CRTC? */
199 for (i = 0; i < 2; i++) {
200 val = nv_rd32(dev, 0x00616100 + (i * 0x800));
201 nv_wr32(dev, 0x00610190 + (i * 0x10), val);
202 val = nv_rd32(dev, 0x00616104 + (i * 0x800));
203 nv_wr32(dev, 0x00610194 + (i * 0x10), val);
204 val = nv_rd32(dev, 0x00616108 + (i * 0x800));
205 nv_wr32(dev, 0x00610198 + (i * 0x10), val);
206 val = nv_rd32(dev, 0x0061610c + (i * 0x800));
207 nv_wr32(dev, 0x0061019c + (i * 0x10), val);
208 }
209 /* DAC */
210 for (i = 0; i < 3; i++) {
211 val = nv_rd32(dev, 0x0061a000 + (i * 0x800));
212 nv_wr32(dev, 0x006101d0 + (i * 0x04), val);
213 }
214 /* SOR */
215 for (i = 0; i < 4; i++) {
216 val = nv_rd32(dev, 0x0061c000 + (i * 0x800));
217 nv_wr32(dev, 0x006101e0 + (i * 0x04), val);
218 }
219 /* Something not yet in use, tv-out maybe. */
220 for (i = 0; i < 3; i++) {
221 val = nv_rd32(dev, 0x0061e000 + (i * 0x800));
222 nv_wr32(dev, 0x006101f0 + (i * 0x04), val);
223 }
224
225 for (i = 0; i < 3; i++) {
226 nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(i), 0x00550000 |
227 NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
228 nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(i), 0x00000001);
229 }
230
231 /* This used to be in crtc unblank, but seems out of place there. */
232 nv_wr32(dev, NV50_PDISPLAY_UNK_380, 0);
233 /* RAM is clamped to 256 MiB. */
234 ram_amount = nouveau_mem_fb_amount(dev);
235 NV_DEBUG_KMS(dev, "ram_amount %d\n", ram_amount);
236 if (ram_amount > 256*1024*1024)
237 ram_amount = 256*1024*1024;
238 nv_wr32(dev, NV50_PDISPLAY_RAM_AMOUNT, ram_amount - 1);
239 nv_wr32(dev, NV50_PDISPLAY_UNK_388, 0x150000);
240 nv_wr32(dev, NV50_PDISPLAY_UNK_38C, 0);
241
242 /* The precise purpose is unknown, i suspect it has something to do
243 * with text mode.
244 */
245 if (nv_rd32(dev, NV50_PDISPLAY_INTR_1) & 0x100) {
246 nv_wr32(dev, NV50_PDISPLAY_INTR_1, 0x100);
247 nv_wr32(dev, 0x006194e8, nv_rd32(dev, 0x006194e8) & ~1);
248 if (!nv_wait(0x006194e8, 2, 0)) {
249 NV_ERROR(dev, "timeout: (0x6194e8 & 2) != 0\n");
250 NV_ERROR(dev, "0x6194e8 = 0x%08x\n",
251 nv_rd32(dev, 0x6194e8));
252 return -EBUSY;
253 }
254 }
255
256 /* taken from nv bug #12637, attempts to un-wedge the hw if it's
257 * stuck in some unspecified state
258 */
259 start = ptimer->read(dev);
260 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x2b00);
261 while ((val = nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0))) & 0x1e0000) {
262 if ((val & 0x9f0000) == 0x20000)
263 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
264 val | 0x800000);
265
266 if ((val & 0x3f0000) == 0x30000)
267 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
268 val | 0x200000);
269
270 if (ptimer->read(dev) - start > 1000000000ULL) {
271 NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) != 0\n");
272 NV_ERROR(dev, "0x610200 = 0x%08x\n", val);
273 return -EBUSY;
274 }
275 }
276
277 nv_wr32(dev, NV50_PDISPLAY_CTRL_STATE, NV50_PDISPLAY_CTRL_STATE_ENABLE);
278 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x1000b03);
279 if (!nv_wait(NV50_PDISPLAY_CHANNEL_STAT(0), 0x40000000, 0x40000000)) {
280 NV_ERROR(dev, "timeout: (0x610200 & 0x40000000) == 0x40000000\n");
281 NV_ERROR(dev, "0x610200 = 0x%08x\n",
282 nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
283 return -EBUSY;
284 }
285
286 for (i = 0; i < 2; i++) {
287 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i), 0x2000);
288 if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
289 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
290 NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
291 NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
292 nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
293 return -EBUSY;
294 }
295
296 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
297 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
298 if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
299 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS,
300 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE)) {
301 NV_ERROR(dev, "timeout: "
302 "CURSOR_CTRL2_STATUS_ACTIVE(%d)\n", i);
303 NV_ERROR(dev, "CURSOR_CTRL2(%d) = 0x%08x\n", i,
304 nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
305 return -EBUSY;
306 }
307 }
308
309 nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->instance >> 8) | 9);
310
311 /* initialise fifo */
312 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_DMA_CB(0),
313 ((evo->pushbuf_bo->bo.mem.mm_node->start << PAGE_SHIFT) >> 8) |
314 NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_VRAM |
315 NV50_PDISPLAY_CHANNEL_DMA_CB_VALID);
316 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK2(0), 0x00010000);
317 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK3(0), 0x00000002);
318 if (!nv_wait(0x610200, 0x80000000, 0x00000000)) {
319 NV_ERROR(dev, "timeout: (0x610200 & 0x80000000) == 0\n");
320 NV_ERROR(dev, "0x610200 = 0x%08x\n", nv_rd32(dev, 0x610200));
321 return -EBUSY;
322 }
323 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0),
324 (nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)) & ~0x00000003) |
325 NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
326 nv_wr32(dev, NV50_PDISPLAY_USER_PUT(0), 0);
327 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0x01000003 |
328 NV50_PDISPLAY_CHANNEL_STAT_DMA_ENABLED);
329 nv_wr32(dev, 0x610300, nv_rd32(dev, 0x610300) & ~1);
330
331 evo->dma.max = (4096/4) - 2;
332 evo->dma.put = 0;
333 evo->dma.cur = evo->dma.put;
334 evo->dma.free = evo->dma.max - evo->dma.cur;
335
336 ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
337 if (ret)
338 return ret;
339
340 for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
341 OUT_RING(evo, 0);
342
343 ret = RING_SPACE(evo, 11);
344 if (ret)
345 return ret;
346 BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2);
347 OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
348 OUT_RING(evo, NV50_EVO_DMA_NOTIFY_HANDLE_NONE);
349 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1);
350 OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
351 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1);
352 OUT_RING(evo, 0);
353 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1);
354 OUT_RING(evo, 0);
355 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1);
356 OUT_RING(evo, 0);
357 FIRE_RING(evo);
358 if (!nv_wait(0x640004, 0xffffffff, evo->dma.put << 2))
359 NV_ERROR(dev, "evo pushbuf stalled\n");
360
361 /* enable clock change interrupts. */
362 nv_wr32(dev, 0x610028, 0x00010001);
363 nv_wr32(dev, NV50_PDISPLAY_INTR_EN, (NV50_PDISPLAY_INTR_EN_CLK_UNK10 |
364 NV50_PDISPLAY_INTR_EN_CLK_UNK20 |
365 NV50_PDISPLAY_INTR_EN_CLK_UNK40));
366
367 /* enable hotplug interrupts */
368 hpd_en[0] = hpd_en[1] = 0;
369 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
370 struct nouveau_connector *conn = nouveau_connector(connector);
371 struct dcb_gpio_entry *gpio;
372
373 if (connector->connector_type != DRM_MODE_CONNECTOR_DVII &&
374 connector->connector_type != DRM_MODE_CONNECTOR_DVID &&
375 connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
376 continue;
377
378 gpio = nouveau_bios_gpio_entry(dev, conn->dcb->gpio_tag);
379 if (!gpio)
380 continue;
381
382 hpd_en[gpio->line >> 4] |= (0x00010001 << (gpio->line & 0xf));
383 }
384
385 nv_wr32(dev, 0xe054, 0xffffffff);
386 nv_wr32(dev, 0xe050, hpd_en[0]);
387 if (dev_priv->chipset >= 0x90) {
388 nv_wr32(dev, 0xe074, 0xffffffff);
389 nv_wr32(dev, 0xe070, hpd_en[1]);
390 }
391
392 return 0;
393 }
394
395 static int nv50_display_disable(struct drm_device *dev)
396 {
397 struct drm_nouveau_private *dev_priv = dev->dev_private;
398 struct drm_crtc *drm_crtc;
399 int ret, i;
400
401 NV_DEBUG_KMS(dev, "\n");
402
403 list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
404 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
405
406 nv50_crtc_blank(crtc, true);
407 }
408
409 ret = RING_SPACE(dev_priv->evo, 2);
410 if (ret == 0) {
411 BEGIN_RING(dev_priv->evo, 0, NV50_EVO_UPDATE, 1);
412 OUT_RING(dev_priv->evo, 0);
413 }
414 FIRE_RING(dev_priv->evo);
415
416 /* Almost like ack'ing a vblank interrupt, maybe in the spirit of
417 * cleaning up?
418 */
419 list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
420 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
421 uint32_t mask = NV50_PDISPLAY_INTR_1_VBLANK_CRTC_(crtc->index);
422
423 if (!crtc->base.enabled)
424 continue;
425
426 nv_wr32(dev, NV50_PDISPLAY_INTR_1, mask);
427 if (!nv_wait(NV50_PDISPLAY_INTR_1, mask, mask)) {
428 NV_ERROR(dev, "timeout: (0x610024 & 0x%08x) == "
429 "0x%08x\n", mask, mask);
430 NV_ERROR(dev, "0x610024 = 0x%08x\n",
431 nv_rd32(dev, NV50_PDISPLAY_INTR_1));
432 }
433 }
434
435 nv_wr32(dev, NV50_PDISPLAY_CHANNEL_STAT(0), 0);
436 nv_wr32(dev, NV50_PDISPLAY_CTRL_STATE, 0);
437 if (!nv_wait(NV50_PDISPLAY_CHANNEL_STAT(0), 0x1e0000, 0)) {
438 NV_ERROR(dev, "timeout: (0x610200 & 0x1e0000) == 0\n");
439 NV_ERROR(dev, "0x610200 = 0x%08x\n",
440 nv_rd32(dev, NV50_PDISPLAY_CHANNEL_STAT(0)));
441 }
442
443 for (i = 0; i < 3; i++) {
444 if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_STATE(i),
445 NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
446 NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", i);
447 NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", i,
448 nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i)));
449 }
450 }
451
452 /* disable interrupts. */
453 nv_wr32(dev, NV50_PDISPLAY_INTR_EN, 0x00000000);
454
455 /* disable hotplug interrupts */
456 nv_wr32(dev, 0xe054, 0xffffffff);
457 nv_wr32(dev, 0xe050, 0x00000000);
458 if (dev_priv->chipset >= 0x90) {
459 nv_wr32(dev, 0xe074, 0xffffffff);
460 nv_wr32(dev, 0xe070, 0x00000000);
461 }
462 return 0;
463 }
464
465 int nv50_display_create(struct drm_device *dev)
466 {
467 struct drm_nouveau_private *dev_priv = dev->dev_private;
468 struct parsed_dcb *dcb = dev_priv->vbios->dcb;
469 uint32_t connector[16] = {};
470 int ret, i;
471
472 NV_DEBUG_KMS(dev, "\n");
473
474 /* init basic kernel modesetting */
475 drm_mode_config_init(dev);
476
477 /* Initialise some optional connector properties. */
478 drm_mode_create_scaling_mode_property(dev);
479 drm_mode_create_dithering_property(dev);
480
481 dev->mode_config.min_width = 0;
482 dev->mode_config.min_height = 0;
483
484 dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
485
486 dev->mode_config.max_width = 8192;
487 dev->mode_config.max_height = 8192;
488
489 dev->mode_config.fb_base = dev_priv->fb_phys;
490
491 /* Create EVO channel */
492 ret = nv50_evo_channel_new(dev, &dev_priv->evo);
493 if (ret) {
494 NV_ERROR(dev, "Error creating EVO channel: %d\n", ret);
495 return ret;
496 }
497
498 /* Create CRTC objects */
499 for (i = 0; i < 2; i++)
500 nv50_crtc_create(dev, i);
501
502 /* We setup the encoders from the BIOS table */
503 for (i = 0 ; i < dcb->entries; i++) {
504 struct dcb_entry *entry = &dcb->entry[i];
505
506 if (entry->location != DCB_LOC_ON_CHIP) {
507 NV_WARN(dev, "Off-chip encoder %d/%d unsupported\n",
508 entry->type, ffs(entry->or) - 1);
509 continue;
510 }
511
512 switch (entry->type) {
513 case OUTPUT_TMDS:
514 case OUTPUT_LVDS:
515 case OUTPUT_DP:
516 nv50_sor_create(dev, entry);
517 break;
518 case OUTPUT_ANALOG:
519 nv50_dac_create(dev, entry);
520 break;
521 default:
522 NV_WARN(dev, "DCB encoder %d unknown\n", entry->type);
523 continue;
524 }
525
526 connector[entry->connector] |= (1 << entry->type);
527 }
528
529 /* It appears that DCB 3.0+ VBIOS has a connector table, however,
530 * I'm not 100% certain how to decode it correctly yet so just
531 * look at what encoders are present on each connector index and
532 * attempt to derive the connector type from that.
533 */
534 for (i = 0 ; i < dcb->entries; i++) {
535 struct dcb_entry *entry = &dcb->entry[i];
536 uint16_t encoders;
537 int type;
538
539 encoders = connector[entry->connector];
540 if (!(encoders & (1 << entry->type)))
541 continue;
542 connector[entry->connector] = 0;
543
544 if (encoders & (1 << OUTPUT_DP)) {
545 type = DRM_MODE_CONNECTOR_DisplayPort;
546 } else if (encoders & (1 << OUTPUT_TMDS)) {
547 if (encoders & (1 << OUTPUT_ANALOG))
548 type = DRM_MODE_CONNECTOR_DVII;
549 else
550 type = DRM_MODE_CONNECTOR_DVID;
551 } else if (encoders & (1 << OUTPUT_ANALOG)) {
552 type = DRM_MODE_CONNECTOR_VGA;
553 } else if (encoders & (1 << OUTPUT_LVDS)) {
554 type = DRM_MODE_CONNECTOR_LVDS;
555 } else {
556 type = DRM_MODE_CONNECTOR_Unknown;
557 }
558
559 if (type == DRM_MODE_CONNECTOR_Unknown)
560 continue;
561
562 nouveau_connector_create(dev, entry->connector, type);
563 }
564
565 ret = nv50_display_init(dev);
566 if (ret)
567 return ret;
568
569 return 0;
570 }
571
572 int nv50_display_destroy(struct drm_device *dev)
573 {
574 struct drm_nouveau_private *dev_priv = dev->dev_private;
575
576 NV_DEBUG_KMS(dev, "\n");
577
578 drm_mode_config_cleanup(dev);
579
580 nv50_display_disable(dev);
581 nv50_evo_channel_del(&dev_priv->evo);
582
583 return 0;
584 }
585
586 static inline uint32_t
587 nv50_display_mode_ctrl(struct drm_device *dev, bool sor, int or)
588 {
589 struct drm_nouveau_private *dev_priv = dev->dev_private;
590 uint32_t mc;
591
592 if (sor) {
593 if (dev_priv->chipset < 0x90 ||
594 dev_priv->chipset == 0x92 || dev_priv->chipset == 0xa0)
595 mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_P(or));
596 else
597 mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_P(or));
598 } else {
599 mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_P(or));
600 }
601
602 return mc;
603 }
604
605 static int
606 nv50_display_irq_head(struct drm_device *dev, int *phead,
607 struct dcb_entry **pdcbent)
608 {
609 struct drm_nouveau_private *dev_priv = dev->dev_private;
610 uint32_t unk30 = nv_rd32(dev, NV50_PDISPLAY_UNK30_CTRL);
611 uint32_t dac = 0, sor = 0;
612 int head, i, or = 0, type = OUTPUT_ANY;
613
614 /* We're assuming that head 0 *or* head 1 will be active here,
615 * and not both. I'm not sure if the hw will even signal both
616 * ever, but it definitely shouldn't for us as we commit each
617 * CRTC separately, and submission will be blocked by the GPU
618 * until we handle each in turn.
619 */
620 NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
621 head = ffs((unk30 >> 9) & 3) - 1;
622 if (head < 0)
623 return -EINVAL;
624
625 /* This assumes CRTCs are never bound to multiple encoders, which
626 * should be the case.
627 */
628 for (i = 0; i < 3 && type == OUTPUT_ANY; i++) {
629 uint32_t mc = nv50_display_mode_ctrl(dev, false, i);
630 if (!(mc & (1 << head)))
631 continue;
632
633 switch ((mc >> 8) & 0xf) {
634 case 0: type = OUTPUT_ANALOG; break;
635 case 1: type = OUTPUT_TV; break;
636 default:
637 NV_ERROR(dev, "unknown dac mode_ctrl: 0x%08x\n", dac);
638 return -1;
639 }
640
641 or = i;
642 }
643
644 for (i = 0; i < 4 && type == OUTPUT_ANY; i++) {
645 uint32_t mc = nv50_display_mode_ctrl(dev, true, i);
646 if (!(mc & (1 << head)))
647 continue;
648
649 switch ((mc >> 8) & 0xf) {
650 case 0: type = OUTPUT_LVDS; break;
651 case 1: type = OUTPUT_TMDS; break;
652 case 2: type = OUTPUT_TMDS; break;
653 case 5: type = OUTPUT_TMDS; break;
654 case 8: type = OUTPUT_DP; break;
655 case 9: type = OUTPUT_DP; break;
656 default:
657 NV_ERROR(dev, "unknown sor mode_ctrl: 0x%08x\n", sor);
658 return -1;
659 }
660
661 or = i;
662 }
663
664 NV_DEBUG_KMS(dev, "type %d, or %d\n", type, or);
665 if (type == OUTPUT_ANY) {
666 NV_ERROR(dev, "unknown encoder!!\n");
667 return -1;
668 }
669
670 for (i = 0; i < dev_priv->vbios->dcb->entries; i++) {
671 struct dcb_entry *dcbent = &dev_priv->vbios->dcb->entry[i];
672
673 if (dcbent->type != type)
674 continue;
675
676 if (!(dcbent->or & (1 << or)))
677 continue;
678
679 *phead = head;
680 *pdcbent = dcbent;
681 return 0;
682 }
683
684 NV_ERROR(dev, "no DCB entry for %d %d\n", dac != 0, or);
685 return 0;
686 }
687
688 static uint32_t
689 nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcbent,
690 int pxclk)
691 {
692 struct drm_nouveau_private *dev_priv = dev->dev_private;
693 struct nouveau_connector *nv_connector = NULL;
694 struct drm_encoder *encoder;
695 struct nvbios *bios = &dev_priv->VBIOS;
696 uint32_t mc, script = 0, or;
697
698 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
699 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
700
701 if (nv_encoder->dcb != dcbent)
702 continue;
703
704 nv_connector = nouveau_encoder_connector_get(nv_encoder);
705 break;
706 }
707
708 or = ffs(dcbent->or) - 1;
709 mc = nv50_display_mode_ctrl(dev, dcbent->type != OUTPUT_ANALOG, or);
710 switch (dcbent->type) {
711 case OUTPUT_LVDS:
712 script = (mc >> 8) & 0xf;
713 if (bios->pub.fp_no_ddc) {
714 if (bios->fp.dual_link)
715 script |= 0x0100;
716 if (bios->fp.if_is_24bit)
717 script |= 0x0200;
718 } else {
719 if (pxclk >= bios->fp.duallink_transition_clk) {
720 script |= 0x0100;
721 if (bios->fp.strapless_is_24bit & 2)
722 script |= 0x0200;
723 } else
724 if (bios->fp.strapless_is_24bit & 1)
725 script |= 0x0200;
726
727 if (nv_connector && nv_connector->edid &&
728 (nv_connector->edid->revision >= 4) &&
729 (nv_connector->edid->input & 0x70) >= 0x20)
730 script |= 0x0200;
731 }
732
733 if (nouveau_uscript_lvds >= 0) {
734 NV_INFO(dev, "override script 0x%04x with 0x%04x "
735 "for output LVDS-%d\n", script,
736 nouveau_uscript_lvds, or);
737 script = nouveau_uscript_lvds;
738 }
739 break;
740 case OUTPUT_TMDS:
741 script = (mc >> 8) & 0xf;
742 if (pxclk >= 165000)
743 script |= 0x0100;
744
745 if (nouveau_uscript_tmds >= 0) {
746 NV_INFO(dev, "override script 0x%04x with 0x%04x "
747 "for output TMDS-%d\n", script,
748 nouveau_uscript_tmds, or);
749 script = nouveau_uscript_tmds;
750 }
751 break;
752 case OUTPUT_DP:
753 script = (mc >> 8) & 0xf;
754 break;
755 case OUTPUT_ANALOG:
756 script = 0xff;
757 break;
758 default:
759 NV_ERROR(dev, "modeset on unsupported output type!\n");
760 break;
761 }
762
763 return script;
764 }
765
766 static void
767 nv50_display_vblank_crtc_handler(struct drm_device *dev, int crtc)
768 {
769 struct drm_nouveau_private *dev_priv = dev->dev_private;
770 struct nouveau_channel *chan;
771 struct list_head *entry, *tmp;
772
773 list_for_each_safe(entry, tmp, &dev_priv->vbl_waiting) {
774 chan = list_entry(entry, struct nouveau_channel, nvsw.vbl_wait);
775
776 nouveau_bo_wr32(chan->notifier_bo, chan->nvsw.vblsem_offset,
777 chan->nvsw.vblsem_rval);
778 list_del(&chan->nvsw.vbl_wait);
779 }
780 }
781
782 static void
783 nv50_display_vblank_handler(struct drm_device *dev, uint32_t intr)
784 {
785 intr &= NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
786
787 if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_0)
788 nv50_display_vblank_crtc_handler(dev, 0);
789
790 if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_1)
791 nv50_display_vblank_crtc_handler(dev, 1);
792
793 nv_wr32(dev, NV50_PDISPLAY_INTR_EN, nv_rd32(dev,
794 NV50_PDISPLAY_INTR_EN) & ~intr);
795 nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr);
796 }
797
798 static void
799 nv50_display_unk10_handler(struct drm_device *dev)
800 {
801 struct dcb_entry *dcbent;
802 int head, ret;
803
804 ret = nv50_display_irq_head(dev, &head, &dcbent);
805 if (ret)
806 goto ack;
807
808 nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) & ~8);
809
810 nouveau_bios_run_display_table(dev, dcbent, 0, -1);
811
812 ack:
813 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK10);
814 nv_wr32(dev, 0x610030, 0x80000000);
815 }
816
817 static void
818 nv50_display_unk20_handler(struct drm_device *dev)
819 {
820 struct dcb_entry *dcbent;
821 uint32_t tmp, pclk, script;
822 int head, or, ret;
823
824 ret = nv50_display_irq_head(dev, &head, &dcbent);
825 if (ret)
826 goto ack;
827 or = ffs(dcbent->or) - 1;
828 pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(head, CLOCK)) & 0x3fffff;
829 script = nv50_display_script_select(dev, dcbent, pclk);
830
831 NV_DEBUG_KMS(dev, "head %d pxclk: %dKHz\n", head, pclk);
832
833 if (dcbent->type != OUTPUT_DP)
834 nouveau_bios_run_display_table(dev, dcbent, 0, -2);
835
836 nv50_crtc_set_clock(dev, head, pclk);
837
838 nouveau_bios_run_display_table(dev, dcbent, script, pclk);
839
840 tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(head));
841 tmp &= ~0x000000f;
842 nv_wr32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(head), tmp);
843
844 if (dcbent->type != OUTPUT_ANALOG) {
845 tmp = nv_rd32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or));
846 tmp &= ~0x00000f0f;
847 if (script & 0x0100)
848 tmp |= 0x00000101;
849 nv_wr32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or), tmp);
850 } else {
851 nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL2(or), 0);
852 }
853
854 ack:
855 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK20);
856 nv_wr32(dev, 0x610030, 0x80000000);
857 }
858
859 static void
860 nv50_display_unk40_handler(struct drm_device *dev)
861 {
862 struct dcb_entry *dcbent;
863 int head, pclk, script, ret;
864
865 ret = nv50_display_irq_head(dev, &head, &dcbent);
866 if (ret)
867 goto ack;
868 pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(head, CLOCK)) & 0x3fffff;
869 script = nv50_display_script_select(dev, dcbent, pclk);
870
871 nouveau_bios_run_display_table(dev, dcbent, script, -pclk);
872
873 ack:
874 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK40);
875 nv_wr32(dev, 0x610030, 0x80000000);
876 nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) | 8);
877 }
878
879 void
880 nv50_display_irq_handler_bh(struct work_struct *work)
881 {
882 struct drm_nouveau_private *dev_priv =
883 container_of(work, struct drm_nouveau_private, irq_work);
884 struct drm_device *dev = dev_priv->dev;
885
886 for (;;) {
887 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
888 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
889
890 NV_DEBUG_KMS(dev, "PDISPLAY_INTR_BH 0x%08x 0x%08x\n", intr0, intr1);
891
892 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK10)
893 nv50_display_unk10_handler(dev);
894 else
895 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK20)
896 nv50_display_unk20_handler(dev);
897 else
898 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK40)
899 nv50_display_unk40_handler(dev);
900 else
901 break;
902 }
903
904 nv_wr32(dev, NV03_PMC_INTR_EN_0, 1);
905 }
906
907 static void
908 nv50_display_error_handler(struct drm_device *dev)
909 {
910 uint32_t addr, data;
911
912 nv_wr32(dev, NV50_PDISPLAY_INTR_0, 0x00010000);
913 addr = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_ADDR);
914 data = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_DATA);
915
916 NV_ERROR(dev, "EvoCh %d Mthd 0x%04x Data 0x%08x (0x%04x 0x%02x)\n",
917 0, addr & 0xffc, data, addr >> 16, (addr >> 12) & 0xf);
918
919 nv_wr32(dev, NV50_PDISPLAY_TRAPPED_ADDR, 0x90000000);
920 }
921
922 static void
923 nv50_display_irq_hotplug(struct drm_device *dev)
924 {
925 struct drm_nouveau_private *dev_priv = dev->dev_private;
926 struct drm_connector *connector;
927 const uint32_t gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 };
928 uint32_t unplug_mask, plug_mask, change_mask;
929 uint32_t hpd0, hpd1 = 0;
930
931 hpd0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
932 if (dev_priv->chipset >= 0x90)
933 hpd1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
934
935 plug_mask = (hpd0 & 0x0000ffff) | (hpd1 << 16);
936 unplug_mask = (hpd0 >> 16) | (hpd1 & 0xffff0000);
937 change_mask = plug_mask | unplug_mask;
938
939 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
940 struct drm_encoder_helper_funcs *helper;
941 struct nouveau_connector *nv_connector =
942 nouveau_connector(connector);
943 struct nouveau_encoder *nv_encoder;
944 struct dcb_gpio_entry *gpio;
945 uint32_t reg;
946 bool plugged;
947
948 if (!nv_connector->dcb)
949 continue;
950
951 gpio = nouveau_bios_gpio_entry(dev, nv_connector->dcb->gpio_tag);
952 if (!gpio || !(change_mask & (1 << gpio->line)))
953 continue;
954
955 reg = nv_rd32(dev, gpio_reg[gpio->line >> 3]);
956 plugged = !!(reg & (4 << ((gpio->line & 7) << 2)));
957 NV_INFO(dev, "%splugged %s\n", plugged ? "" : "un",
958 drm_get_connector_name(connector)) ;
959
960 if (!connector->encoder || !connector->encoder->crtc ||
961 !connector->encoder->crtc->enabled)
962 continue;
963 nv_encoder = nouveau_encoder(connector->encoder);
964 helper = connector->encoder->helper_private;
965
966 if (nv_encoder->dcb->type != OUTPUT_DP)
967 continue;
968
969 if (plugged)
970 helper->dpms(connector->encoder, DRM_MODE_DPMS_ON);
971 else
972 helper->dpms(connector->encoder, DRM_MODE_DPMS_OFF);
973 }
974
975 nv_wr32(dev, 0xe054, nv_rd32(dev, 0xe054));
976 if (dev_priv->chipset >= 0x90)
977 nv_wr32(dev, 0xe074, nv_rd32(dev, 0xe074));
978 }
979
980 void
981 nv50_display_irq_handler(struct drm_device *dev)
982 {
983 struct drm_nouveau_private *dev_priv = dev->dev_private;
984 uint32_t delayed = 0;
985
986 while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_HOTPLUG)
987 nv50_display_irq_hotplug(dev);
988
989 while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) {
990 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
991 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
992 uint32_t clock;
993
994 NV_DEBUG_KMS(dev, "PDISPLAY_INTR 0x%08x 0x%08x\n", intr0, intr1);
995
996 if (!intr0 && !(intr1 & ~delayed))
997 break;
998
999 if (intr0 & 0x00010000) {
1000 nv50_display_error_handler(dev);
1001 intr0 &= ~0x00010000;
1002 }
1003
1004 if (intr1 & NV50_PDISPLAY_INTR_1_VBLANK_CRTC) {
1005 nv50_display_vblank_handler(dev, intr1);
1006 intr1 &= ~NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
1007 }
1008
1009 clock = (intr1 & (NV50_PDISPLAY_INTR_1_CLK_UNK10 |
1010 NV50_PDISPLAY_INTR_1_CLK_UNK20 |
1011 NV50_PDISPLAY_INTR_1_CLK_UNK40));
1012 if (clock) {
1013 nv_wr32(dev, NV03_PMC_INTR_EN_0, 0);
1014 if (!work_pending(&dev_priv->irq_work))
1015 queue_work(dev_priv->wq, &dev_priv->irq_work);
1016 delayed |= clock;
1017 intr1 &= ~clock;
1018 }
1019
1020 if (intr0) {
1021 NV_ERROR(dev, "unknown PDISPLAY_INTR_0: 0x%08x\n", intr0);
1022 nv_wr32(dev, NV50_PDISPLAY_INTR_0, intr0);
1023 }
1024
1025 if (intr1) {
1026 NV_ERROR(dev,
1027 "unknown PDISPLAY_INTR_1: 0x%08x\n", intr1);
1028 nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr1);
1029 }
1030 }
1031 }
1032
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