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x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE
[linux-btrfs-devel.git] / drivers / gpu / drm / nouveau / nv50_display.c
blobdb1a5f4b711d9aa9b3120219a0df1d865ccbfc07
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 #define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
28 #include "nv50_display.h"
29 #include "nouveau_crtc.h"
30 #include "nouveau_encoder.h"
31 #include "nouveau_connector.h"
32 #include "nouveau_fb.h"
33 #include "nouveau_fbcon.h"
34 #include "nouveau_ramht.h"
35 #include "drm_crtc_helper.h"
36
37 static void nv50_display_isr(struct drm_device *);
38 static void nv50_display_bh(unsigned long);
39
40 static inline int
41 nv50_sor_nr(struct drm_device *dev)
42 {
43 struct drm_nouveau_private *dev_priv = dev->dev_private;
44
45 if (dev_priv->chipset < 0x90 ||
46 dev_priv->chipset == 0x92 ||
47 dev_priv->chipset == 0xa0)
48 return 2;
49
50 return 4;
51 }
52
53 int
54 nv50_display_early_init(struct drm_device *dev)
55 {
56 return 0;
57 }
58
59 void
60 nv50_display_late_takedown(struct drm_device *dev)
61 {
62 }
63
64 int
65 nv50_display_init(struct drm_device *dev)
66 {
67 struct drm_nouveau_private *dev_priv = dev->dev_private;
68 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
69 struct drm_connector *connector;
70 struct nouveau_channel *evo;
71 int ret, i;
72 u32 val;
73
74 NV_DEBUG_KMS(dev, "\n");
75
76 nv_wr32(dev, 0x00610184, nv_rd32(dev, 0x00614004));
77
78 /*
79 * I think the 0x006101XX range is some kind of main control area
80 * that enables things.
81 */
82 /* CRTC? */
83 for (i = 0; i < 2; i++) {
84 val = nv_rd32(dev, 0x00616100 + (i * 0x800));
85 nv_wr32(dev, 0x00610190 + (i * 0x10), val);
86 val = nv_rd32(dev, 0x00616104 + (i * 0x800));
87 nv_wr32(dev, 0x00610194 + (i * 0x10), val);
88 val = nv_rd32(dev, 0x00616108 + (i * 0x800));
89 nv_wr32(dev, 0x00610198 + (i * 0x10), val);
90 val = nv_rd32(dev, 0x0061610c + (i * 0x800));
91 nv_wr32(dev, 0x0061019c + (i * 0x10), val);
92 }
93
94 /* DAC */
95 for (i = 0; i < 3; i++) {
96 val = nv_rd32(dev, 0x0061a000 + (i * 0x800));
97 nv_wr32(dev, 0x006101d0 + (i * 0x04), val);
98 }
99
100 /* SOR */
101 for (i = 0; i < nv50_sor_nr(dev); i++) {
102 val = nv_rd32(dev, 0x0061c000 + (i * 0x800));
103 nv_wr32(dev, 0x006101e0 + (i * 0x04), val);
104 }
105
106 /* EXT */
107 for (i = 0; i < 3; i++) {
108 val = nv_rd32(dev, 0x0061e000 + (i * 0x800));
109 nv_wr32(dev, 0x006101f0 + (i * 0x04), val);
110 }
111
112 for (i = 0; i < 3; i++) {
113 nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(i), 0x00550000 |
114 NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
115 nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(i), 0x00000001);
116 }
117
118 /* The precise purpose is unknown, i suspect it has something to do
119 * with text mode.
120 */
121 if (nv_rd32(dev, NV50_PDISPLAY_INTR_1) & 0x100) {
122 nv_wr32(dev, NV50_PDISPLAY_INTR_1, 0x100);
123 nv_wr32(dev, 0x006194e8, nv_rd32(dev, 0x006194e8) & ~1);
124 if (!nv_wait(dev, 0x006194e8, 2, 0)) {
125 NV_ERROR(dev, "timeout: (0x6194e8 & 2) != 0\n");
126 NV_ERROR(dev, "0x6194e8 = 0x%08x\n",
127 nv_rd32(dev, 0x6194e8));
128 return -EBUSY;
129 }
130 }
131
132 for (i = 0; i < 2; i++) {
133 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i), 0x2000);
134 if (!nv_wait(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
135 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
136 NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
137 NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
138 nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
139 return -EBUSY;
140 }
141
142 nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
143 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
144 if (!nv_wait(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
145 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS,
146 NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE)) {
147 NV_ERROR(dev, "timeout: "
148 "CURSOR_CTRL2_STATUS_ACTIVE(%d)\n", i);
149 NV_ERROR(dev, "CURSOR_CTRL2(%d) = 0x%08x\n", i,
150 nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
151 return -EBUSY;
152 }
153 }
154
155 nv_wr32(dev, NV50_PDISPLAY_PIO_CTRL, 0x00000000);
156 nv_mask(dev, NV50_PDISPLAY_INTR_0, 0x00000000, 0x00000000);
157 nv_wr32(dev, NV50_PDISPLAY_INTR_EN_0, 0x00000000);
158 nv_mask(dev, NV50_PDISPLAY_INTR_1, 0x00000000, 0x00000000);
159 nv_wr32(dev, NV50_PDISPLAY_INTR_EN_1,
160 NV50_PDISPLAY_INTR_EN_1_CLK_UNK10 |
161 NV50_PDISPLAY_INTR_EN_1_CLK_UNK20 |
162 NV50_PDISPLAY_INTR_EN_1_CLK_UNK40);
163
164 /* enable hotplug interrupts */
165 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
166 struct nouveau_connector *conn = nouveau_connector(connector);
167
168 if (conn->dcb->gpio_tag == 0xff)
169 continue;
170
171 pgpio->irq_enable(dev, conn->dcb->gpio_tag, true);
172 }
173
174 ret = nv50_evo_init(dev);
175 if (ret)
176 return ret;
177 evo = nv50_display(dev)->master;
178
179 nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9);
180
181 ret = RING_SPACE(evo, 15);
182 if (ret)
183 return ret;
184 BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2);
185 OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
186 OUT_RING(evo, NvEvoSync);
187 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1);
188 OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
189 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1);
190 OUT_RING(evo, 0);
191 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1);
192 OUT_RING(evo, 0);
193 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1);
194 OUT_RING(evo, 0);
195 /* required to make display sync channels not hate life */
196 BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK900), 1);
197 OUT_RING (evo, 0x00000311);
198 BEGIN_RING(evo, 0, NV50_EVO_CRTC(1, UNK900), 1);
199 OUT_RING (evo, 0x00000311);
200 FIRE_RING(evo);
201 if (!nv_wait(dev, 0x640004, 0xffffffff, evo->dma.put << 2))
202 NV_ERROR(dev, "evo pushbuf stalled\n");
203
204
205 return 0;
206 }
207
208 static int nv50_display_disable(struct drm_device *dev)
209 {
210 struct drm_nouveau_private *dev_priv = dev->dev_private;
211 struct nv50_display *disp = nv50_display(dev);
212 struct nouveau_channel *evo = disp->master;
213 struct drm_crtc *drm_crtc;
214 int ret, i;
215
216 NV_DEBUG_KMS(dev, "\n");
217
218 list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
219 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
220
221 nv50_crtc_blank(crtc, true);
222 }
223
224 ret = RING_SPACE(evo, 2);
225 if (ret == 0) {
226 BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
227 OUT_RING(evo, 0);
228 }
229 FIRE_RING(evo);
230
231 /* Almost like ack'ing a vblank interrupt, maybe in the spirit of
232 * cleaning up?
233 */
234 list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
235 struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
236 uint32_t mask = NV50_PDISPLAY_INTR_1_VBLANK_CRTC_(crtc->index);
237
238 if (!crtc->base.enabled)
239 continue;
240
241 nv_wr32(dev, NV50_PDISPLAY_INTR_1, mask);
242 if (!nv_wait(dev, NV50_PDISPLAY_INTR_1, mask, mask)) {
243 NV_ERROR(dev, "timeout: (0x610024 & 0x%08x) == "
244 "0x%08x\n", mask, mask);
245 NV_ERROR(dev, "0x610024 = 0x%08x\n",
246 nv_rd32(dev, NV50_PDISPLAY_INTR_1));
247 }
248 }
249
250 nv50_evo_fini(dev);
251
252 for (i = 0; i < 3; i++) {
253 if (!nv_wait(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i),
254 NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
255 NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", i);
256 NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", i,
257 nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i)));
258 }
259 }
260
261 /* disable interrupts. */
262 nv_wr32(dev, NV50_PDISPLAY_INTR_EN_1, 0x00000000);
263
264 /* disable hotplug interrupts */
265 nv_wr32(dev, 0xe054, 0xffffffff);
266 nv_wr32(dev, 0xe050, 0x00000000);
267 if (dev_priv->chipset >= 0x90) {
268 nv_wr32(dev, 0xe074, 0xffffffff);
269 nv_wr32(dev, 0xe070, 0x00000000);
270 }
271 return 0;
272 }
273
274 int nv50_display_create(struct drm_device *dev)
275 {
276 struct drm_nouveau_private *dev_priv = dev->dev_private;
277 struct dcb_table *dcb = &dev_priv->vbios.dcb;
278 struct drm_connector *connector, *ct;
279 struct nv50_display *priv;
280 int ret, i;
281
282 NV_DEBUG_KMS(dev, "\n");
283
284 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
285 if (!priv)
286 return -ENOMEM;
287 dev_priv->engine.display.priv = priv;
288
289 /* init basic kernel modesetting */
290 drm_mode_config_init(dev);
291
292 /* Initialise some optional connector properties. */
293 drm_mode_create_scaling_mode_property(dev);
294 drm_mode_create_dithering_property(dev);
295
296 dev->mode_config.min_width = 0;
297 dev->mode_config.min_height = 0;
298
299 dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
300
301 dev->mode_config.max_width = 8192;
302 dev->mode_config.max_height = 8192;
303
304 dev->mode_config.fb_base = dev_priv->fb_phys;
305
306 /* Create CRTC objects */
307 for (i = 0; i < 2; i++)
308 nv50_crtc_create(dev, i);
309
310 /* We setup the encoders from the BIOS table */
311 for (i = 0 ; i < dcb->entries; i++) {
312 struct dcb_entry *entry = &dcb->entry[i];
313
314 if (entry->location != DCB_LOC_ON_CHIP) {
315 NV_WARN(dev, "Off-chip encoder %d/%d unsupported\n",
316 entry->type, ffs(entry->or) - 1);
317 continue;
318 }
319
320 connector = nouveau_connector_create(dev, entry->connector);
321 if (IS_ERR(connector))
322 continue;
323
324 switch (entry->type) {
325 case OUTPUT_TMDS:
326 case OUTPUT_LVDS:
327 case OUTPUT_DP:
328 nv50_sor_create(connector, entry);
329 break;
330 case OUTPUT_ANALOG:
331 nv50_dac_create(connector, entry);
332 break;
333 default:
334 NV_WARN(dev, "DCB encoder %d unknown\n", entry->type);
335 continue;
336 }
337 }
338
339 list_for_each_entry_safe(connector, ct,
340 &dev->mode_config.connector_list, head) {
341 if (!connector->encoder_ids[0]) {
342 NV_WARN(dev, "%s has no encoders, removing\n",
343 drm_get_connector_name(connector));
344 connector->funcs->destroy(connector);
345 }
346 }
347
348 tasklet_init(&priv->tasklet, nv50_display_bh, (unsigned long)dev);
349 nouveau_irq_register(dev, 26, nv50_display_isr);
350
351 ret = nv50_display_init(dev);
352 if (ret) {
353 nv50_display_destroy(dev);
354 return ret;
355 }
356
357 return 0;
358 }
359
360 void
361 nv50_display_destroy(struct drm_device *dev)
362 {
363 struct nv50_display *disp = nv50_display(dev);
364
365 NV_DEBUG_KMS(dev, "\n");
366
367 drm_mode_config_cleanup(dev);
368
369 nv50_display_disable(dev);
370 nouveau_irq_unregister(dev, 26);
371 kfree(disp);
372 }
373
374 void
375 nv50_display_flip_stop(struct drm_crtc *crtc)
376 {
377 struct nv50_display *disp = nv50_display(crtc->dev);
378 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
379 struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index];
380 struct nouveau_channel *evo = dispc->sync;
381 int ret;
382
383 ret = RING_SPACE(evo, 8);
384 if (ret) {
385 WARN_ON(1);
386 return;
387 }
388
389 BEGIN_RING(evo, 0, 0x0084, 1);
390 OUT_RING (evo, 0x00000000);
391 BEGIN_RING(evo, 0, 0x0094, 1);
392 OUT_RING (evo, 0x00000000);
393 BEGIN_RING(evo, 0, 0x00c0, 1);
394 OUT_RING (evo, 0x00000000);
395 BEGIN_RING(evo, 0, 0x0080, 1);
396 OUT_RING (evo, 0x00000000);
397 FIRE_RING (evo);
398 }
399
400 int
401 nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
402 struct nouveau_channel *chan)
403 {
404 struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
405 struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
406 struct nv50_display *disp = nv50_display(crtc->dev);
407 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
408 struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index];
409 struct nouveau_channel *evo = dispc->sync;
410 int ret;
411
412 ret = RING_SPACE(evo, chan ? 25 : 27);
413 if (unlikely(ret))
414 return ret;
415
416 /* synchronise with the rendering channel, if necessary */
417 if (likely(chan)) {
418 ret = RING_SPACE(chan, 10);
419 if (ret) {
420 WIND_RING(evo);
421 return ret;
422 }
423
424 if (dev_priv->chipset < 0xc0) {
425 BEGIN_RING(chan, NvSubSw, 0x0060, 2);
426 OUT_RING (chan, NvEvoSema0 + nv_crtc->index);
427 OUT_RING (chan, dispc->sem.offset);
428 BEGIN_RING(chan, NvSubSw, 0x006c, 1);
429 OUT_RING (chan, 0xf00d0000 | dispc->sem.value);
430 BEGIN_RING(chan, NvSubSw, 0x0064, 2);
431 OUT_RING (chan, dispc->sem.offset ^ 0x10);
432 OUT_RING (chan, 0x74b1e000);
433 BEGIN_RING(chan, NvSubSw, 0x0060, 1);
434 if (dev_priv->chipset < 0x84)
435 OUT_RING (chan, NvSema);
436 else
437 OUT_RING (chan, chan->vram_handle);
438 } else {
439 u64 offset = chan->dispc_vma[nv_crtc->index].offset;
440 offset += dispc->sem.offset;
441 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
442 OUT_RING (chan, upper_32_bits(offset));
443 OUT_RING (chan, lower_32_bits(offset));
444 OUT_RING (chan, 0xf00d0000 | dispc->sem.value);
445 OUT_RING (chan, 0x1002);
446 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
447 OUT_RING (chan, upper_32_bits(offset));
448 OUT_RING (chan, lower_32_bits(offset ^ 0x10));
449 OUT_RING (chan, 0x74b1e000);
450 OUT_RING (chan, 0x1001);
451 }
452 FIRE_RING (chan);
453 } else {
454 nouveau_bo_wr32(dispc->sem.bo, dispc->sem.offset / 4,
455 0xf00d0000 | dispc->sem.value);
456 }
457
458 /* queue the flip on the crtc's "display sync" channel */
459 BEGIN_RING(evo, 0, 0x0100, 1);
460 OUT_RING (evo, 0xfffe0000);
461 if (chan) {
462 BEGIN_RING(evo, 0, 0x0084, 1);
463 OUT_RING (evo, 0x00000100);
464 } else {
465 BEGIN_RING(evo, 0, 0x0084, 1);
466 OUT_RING (evo, 0x00000010);
467 /* allows gamma somehow, PDISP will bitch at you if
468 * you don't wait for vblank before changing this..
469 */
470 BEGIN_RING(evo, 0, 0x00e0, 1);
471 OUT_RING (evo, 0x40000000);
472 }
473 BEGIN_RING(evo, 0, 0x0088, 4);
474 OUT_RING (evo, dispc->sem.offset);
475 OUT_RING (evo, 0xf00d0000 | dispc->sem.value);
476 OUT_RING (evo, 0x74b1e000);
477 OUT_RING (evo, NvEvoSync);
478 BEGIN_RING(evo, 0, 0x00a0, 2);
479 OUT_RING (evo, 0x00000000);
480 OUT_RING (evo, 0x00000000);
481 BEGIN_RING(evo, 0, 0x00c0, 1);
482 OUT_RING (evo, nv_fb->r_dma);
483 BEGIN_RING(evo, 0, 0x0110, 2);
484 OUT_RING (evo, 0x00000000);
485 OUT_RING (evo, 0x00000000);
486 BEGIN_RING(evo, 0, 0x0800, 5);
487 OUT_RING (evo, nv_fb->nvbo->bo.offset >> 8);
488 OUT_RING (evo, 0);
489 OUT_RING (evo, (fb->height << 16) | fb->width);
490 OUT_RING (evo, nv_fb->r_pitch);
491 OUT_RING (evo, nv_fb->r_format);
492 BEGIN_RING(evo, 0, 0x0080, 1);
493 OUT_RING (evo, 0x00000000);
494 FIRE_RING (evo);
495
496 dispc->sem.offset ^= 0x10;
497 dispc->sem.value++;
498 return 0;
499 }
500
501 static u16
502 nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcb,
503 u32 mc, int pxclk)
504 {
505 struct drm_nouveau_private *dev_priv = dev->dev_private;
506 struct nouveau_connector *nv_connector = NULL;
507 struct drm_encoder *encoder;
508 struct nvbios *bios = &dev_priv->vbios;
509 u32 script = 0, or;
510
511 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
512 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
513
514 if (nv_encoder->dcb != dcb)
515 continue;
516
517 nv_connector = nouveau_encoder_connector_get(nv_encoder);
518 break;
519 }
520
521 or = ffs(dcb->or) - 1;
522 switch (dcb->type) {
523 case OUTPUT_LVDS:
524 script = (mc >> 8) & 0xf;
525 if (bios->fp_no_ddc) {
526 if (bios->fp.dual_link)
527 script |= 0x0100;
528 if (bios->fp.if_is_24bit)
529 script |= 0x0200;
530 } else {
531 /* determine number of lvds links */
532 if (nv_connector && nv_connector->edid &&
533 nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG) {
534 /* http://www.spwg.org */
535 if (((u8 *)nv_connector->edid)[121] == 2)
536 script |= 0x0100;
537 } else
538 if (pxclk >= bios->fp.duallink_transition_clk) {
539 script |= 0x0100;
540 }
541
542 /* determine panel depth */
543 if (script & 0x0100) {
544 if (bios->fp.strapless_is_24bit & 2)
545 script |= 0x0200;
546 } else {
547 if (bios->fp.strapless_is_24bit & 1)
548 script |= 0x0200;
549 }
550
551 if (nv_connector && nv_connector->edid &&
552 (nv_connector->edid->revision >= 4) &&
553 (nv_connector->edid->input & 0x70) >= 0x20)
554 script |= 0x0200;
555 }
556
557 if (nouveau_uscript_lvds >= 0) {
558 NV_INFO(dev, "override script 0x%04x with 0x%04x "
559 "for output LVDS-%d\n", script,
560 nouveau_uscript_lvds, or);
561 script = nouveau_uscript_lvds;
562 }
563 break;
564 case OUTPUT_TMDS:
565 script = (mc >> 8) & 0xf;
566 if (pxclk >= 165000)
567 script |= 0x0100;
568
569 if (nouveau_uscript_tmds >= 0) {
570 NV_INFO(dev, "override script 0x%04x with 0x%04x "
571 "for output TMDS-%d\n", script,
572 nouveau_uscript_tmds, or);
573 script = nouveau_uscript_tmds;
574 }
575 break;
576 case OUTPUT_DP:
577 script = (mc >> 8) & 0xf;
578 break;
579 case OUTPUT_ANALOG:
580 script = 0xff;
581 break;
582 default:
583 NV_ERROR(dev, "modeset on unsupported output type!\n");
584 break;
585 }
586
587 return script;
588 }
589
590 static void
591 nv50_display_vblank_crtc_handler(struct drm_device *dev, int crtc)
592 {
593 struct drm_nouveau_private *dev_priv = dev->dev_private;
594 struct nouveau_channel *chan, *tmp;
595
596 list_for_each_entry_safe(chan, tmp, &dev_priv->vbl_waiting,
597 nvsw.vbl_wait) {
598 if (chan->nvsw.vblsem_head != crtc)
599 continue;
600
601 nouveau_bo_wr32(chan->notifier_bo, chan->nvsw.vblsem_offset,
602 chan->nvsw.vblsem_rval);
603 list_del(&chan->nvsw.vbl_wait);
604 drm_vblank_put(dev, crtc);
605 }
606
607 drm_handle_vblank(dev, crtc);
608 }
609
610 static void
611 nv50_display_vblank_handler(struct drm_device *dev, uint32_t intr)
612 {
613 if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_0)
614 nv50_display_vblank_crtc_handler(dev, 0);
615
616 if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_1)
617 nv50_display_vblank_crtc_handler(dev, 1);
618
619 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_VBLANK_CRTC);
620 }
621
622 static void
623 nv50_display_unk10_handler(struct drm_device *dev)
624 {
625 struct drm_nouveau_private *dev_priv = dev->dev_private;
626 struct nv50_display *disp = nv50_display(dev);
627 u32 unk30 = nv_rd32(dev, 0x610030), mc;
628 int i, crtc, or, type = OUTPUT_ANY;
629
630 NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
631 disp->irq.dcb = NULL;
632
633 nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) & ~8);
634
635 /* Determine which CRTC we're dealing with, only 1 ever will be
636 * signalled at the same time with the current nouveau code.
637 */
638 crtc = ffs((unk30 & 0x00000060) >> 5) - 1;
639 if (crtc < 0)
640 goto ack;
641
642 /* Nothing needs to be done for the encoder */
643 crtc = ffs((unk30 & 0x00000180) >> 7) - 1;
644 if (crtc < 0)
645 goto ack;
646
647 /* Find which encoder was connected to the CRTC */
648 for (i = 0; type == OUTPUT_ANY && i < 3; i++) {
649 mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_C(i));
650 NV_DEBUG_KMS(dev, "DAC-%d mc: 0x%08x\n", i, mc);
651 if (!(mc & (1 << crtc)))
652 continue;
653
654 switch ((mc & 0x00000f00) >> 8) {
655 case 0: type = OUTPUT_ANALOG; break;
656 case 1: type = OUTPUT_TV; break;
657 default:
658 NV_ERROR(dev, "invalid mc, DAC-%d: 0x%08x\n", i, mc);
659 goto ack;
660 }
661
662 or = i;
663 }
664
665 for (i = 0; type == OUTPUT_ANY && i < nv50_sor_nr(dev); i++) {
666 if (dev_priv->chipset < 0x90 ||
667 dev_priv->chipset == 0x92 ||
668 dev_priv->chipset == 0xa0)
669 mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_C(i));
670 else
671 mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_C(i));
672
673 NV_DEBUG_KMS(dev, "SOR-%d mc: 0x%08x\n", i, mc);
674 if (!(mc & (1 << crtc)))
675 continue;
676
677 switch ((mc & 0x00000f00) >> 8) {
678 case 0: type = OUTPUT_LVDS; break;
679 case 1: type = OUTPUT_TMDS; break;
680 case 2: type = OUTPUT_TMDS; break;
681 case 5: type = OUTPUT_TMDS; break;
682 case 8: type = OUTPUT_DP; break;
683 case 9: type = OUTPUT_DP; break;
684 default:
685 NV_ERROR(dev, "invalid mc, SOR-%d: 0x%08x\n", i, mc);
686 goto ack;
687 }
688
689 or = i;
690 }
691
692 /* There was no encoder to disable */
693 if (type == OUTPUT_ANY)
694 goto ack;
695
696 /* Disable the encoder */
697 for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
698 struct dcb_entry *dcb = &dev_priv->vbios.dcb.entry[i];
699
700 if (dcb->type == type && (dcb->or & (1 << or))) {
701 nouveau_bios_run_display_table(dev, dcb, 0, -1);
702 disp->irq.dcb = dcb;
703 goto ack;
704 }
705 }
706
707 NV_ERROR(dev, "no dcb for %d %d 0x%08x\n", or, type, mc);
708 ack:
709 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK10);
710 nv_wr32(dev, 0x610030, 0x80000000);
711 }
712
713 static void
714 nv50_display_unk20_dp_hack(struct drm_device *dev, struct dcb_entry *dcb)
715 {
716 int or = ffs(dcb->or) - 1, link = !(dcb->dpconf.sor.link & 1);
717 struct drm_encoder *encoder;
718 uint32_t tmp, unk0 = 0, unk1 = 0;
719
720 if (dcb->type != OUTPUT_DP)
721 return;
722
723 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
724 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
725
726 if (nv_encoder->dcb == dcb) {
727 unk0 = nv_encoder->dp.unk0;
728 unk1 = nv_encoder->dp.unk1;
729 break;
730 }
731 }
732
733 if (unk0 || unk1) {
734 tmp = nv_rd32(dev, NV50_SOR_DP_CTRL(or, link));
735 tmp &= 0xfffffe03;
736 nv_wr32(dev, NV50_SOR_DP_CTRL(or, link), tmp | unk0);
737
738 tmp = nv_rd32(dev, NV50_SOR_DP_UNK128(or, link));
739 tmp &= 0xfef080c0;
740 nv_wr32(dev, NV50_SOR_DP_UNK128(or, link), tmp | unk1);
741 }
742 }
743
744 static void
745 nv50_display_unk20_handler(struct drm_device *dev)
746 {
747 struct drm_nouveau_private *dev_priv = dev->dev_private;
748 struct nv50_display *disp = nv50_display(dev);
749 u32 unk30 = nv_rd32(dev, 0x610030), tmp, pclk, script, mc = 0;
750 struct dcb_entry *dcb;
751 int i, crtc, or, type = OUTPUT_ANY;
752
753 NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
754 dcb = disp->irq.dcb;
755 if (dcb) {
756 nouveau_bios_run_display_table(dev, dcb, 0, -2);
757 disp->irq.dcb = NULL;
758 }
759
760 /* CRTC clock change requested? */
761 crtc = ffs((unk30 & 0x00000600) >> 9) - 1;
762 if (crtc >= 0) {
763 pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK));
764 pclk &= 0x003fffff;
765
766 nv50_crtc_set_clock(dev, crtc, pclk);
767
768 tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc));
769 tmp &= ~0x000000f;
770 nv_wr32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc), tmp);
771 }
772
773 /* Nothing needs to be done for the encoder */
774 crtc = ffs((unk30 & 0x00000180) >> 7) - 1;
775 if (crtc < 0)
776 goto ack;
777 pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK)) & 0x003fffff;
778
779 /* Find which encoder is connected to the CRTC */
780 for (i = 0; type == OUTPUT_ANY && i < 3; i++) {
781 mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_P(i));
782 NV_DEBUG_KMS(dev, "DAC-%d mc: 0x%08x\n", i, mc);
783 if (!(mc & (1 << crtc)))
784 continue;
785
786 switch ((mc & 0x00000f00) >> 8) {
787 case 0: type = OUTPUT_ANALOG; break;
788 case 1: type = OUTPUT_TV; break;
789 default:
790 NV_ERROR(dev, "invalid mc, DAC-%d: 0x%08x\n", i, mc);
791 goto ack;
792 }
793
794 or = i;
795 }
796
797 for (i = 0; type == OUTPUT_ANY && i < nv50_sor_nr(dev); i++) {
798 if (dev_priv->chipset < 0x90 ||
799 dev_priv->chipset == 0x92 ||
800 dev_priv->chipset == 0xa0)
801 mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_P(i));
802 else
803 mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_P(i));
804
805 NV_DEBUG_KMS(dev, "SOR-%d mc: 0x%08x\n", i, mc);
806 if (!(mc & (1 << crtc)))
807 continue;
808
809 switch ((mc & 0x00000f00) >> 8) {
810 case 0: type = OUTPUT_LVDS; break;
811 case 1: type = OUTPUT_TMDS; break;
812 case 2: type = OUTPUT_TMDS; break;
813 case 5: type = OUTPUT_TMDS; break;
814 case 8: type = OUTPUT_DP; break;
815 case 9: type = OUTPUT_DP; break;
816 default:
817 NV_ERROR(dev, "invalid mc, SOR-%d: 0x%08x\n", i, mc);
818 goto ack;
819 }
820
821 or = i;
822 }
823
824 if (type == OUTPUT_ANY)
825 goto ack;
826
827 /* Enable the encoder */
828 for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
829 dcb = &dev_priv->vbios.dcb.entry[i];
830 if (dcb->type == type && (dcb->or & (1 << or)))
831 break;
832 }
833
834 if (i == dev_priv->vbios.dcb.entries) {
835 NV_ERROR(dev, "no dcb for %d %d 0x%08x\n", or, type, mc);
836 goto ack;
837 }
838
839 script = nv50_display_script_select(dev, dcb, mc, pclk);
840 nouveau_bios_run_display_table(dev, dcb, script, pclk);
841
842 nv50_display_unk20_dp_hack(dev, dcb);
843
844 if (dcb->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 disp->irq.dcb = dcb;
855 disp->irq.pclk = pclk;
856 disp->irq.script = script;
857
858 ack:
859 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK20);
860 nv_wr32(dev, 0x610030, 0x80000000);
861 }
862
863 /* If programming a TMDS output on a SOR that can also be configured for
864 * DisplayPort, make sure NV50_SOR_DP_CTRL_ENABLE is forced off.
865 *
866 * It looks like the VBIOS TMDS scripts make an attempt at this, however,
867 * the VBIOS scripts on at least one board I have only switch it off on
868 * link 0, causing a blank display if the output has previously been
869 * programmed for DisplayPort.
870 */
871 static void
872 nv50_display_unk40_dp_set_tmds(struct drm_device *dev, struct dcb_entry *dcb)
873 {
874 int or = ffs(dcb->or) - 1, link = !(dcb->dpconf.sor.link & 1);
875 struct drm_encoder *encoder;
876 u32 tmp;
877
878 if (dcb->type != OUTPUT_TMDS)
879 return;
880
881 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
882 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
883
884 if (nv_encoder->dcb->type == OUTPUT_DP &&
885 nv_encoder->dcb->or & (1 << or)) {
886 tmp = nv_rd32(dev, NV50_SOR_DP_CTRL(or, link));
887 tmp &= ~NV50_SOR_DP_CTRL_ENABLED;
888 nv_wr32(dev, NV50_SOR_DP_CTRL(or, link), tmp);
889 break;
890 }
891 }
892 }
893
894 static void
895 nv50_display_unk40_handler(struct drm_device *dev)
896 {
897 struct nv50_display *disp = nv50_display(dev);
898 struct dcb_entry *dcb = disp->irq.dcb;
899 u16 script = disp->irq.script;
900 u32 unk30 = nv_rd32(dev, 0x610030), pclk = disp->irq.pclk;
901
902 NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
903 disp->irq.dcb = NULL;
904 if (!dcb)
905 goto ack;
906
907 nouveau_bios_run_display_table(dev, dcb, script, -pclk);
908 nv50_display_unk40_dp_set_tmds(dev, dcb);
909
910 ack:
911 nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK40);
912 nv_wr32(dev, 0x610030, 0x80000000);
913 nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) | 8);
914 }
915
916 static void
917 nv50_display_bh(unsigned long data)
918 {
919 struct drm_device *dev = (struct drm_device *)data;
920
921 for (;;) {
922 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
923 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
924
925 NV_DEBUG_KMS(dev, "PDISPLAY_INTR_BH 0x%08x 0x%08x\n", intr0, intr1);
926
927 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK10)
928 nv50_display_unk10_handler(dev);
929 else
930 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK20)
931 nv50_display_unk20_handler(dev);
932 else
933 if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK40)
934 nv50_display_unk40_handler(dev);
935 else
936 break;
937 }
938
939 nv_wr32(dev, NV03_PMC_INTR_EN_0, 1);
940 }
941
942 static void
943 nv50_display_error_handler(struct drm_device *dev)
944 {
945 u32 channels = (nv_rd32(dev, NV50_PDISPLAY_INTR_0) & 0x001f0000) >> 16;
946 u32 addr, data;
947 int chid;
948
949 for (chid = 0; chid < 5; chid++) {
950 if (!(channels & (1 << chid)))
951 continue;
952
953 nv_wr32(dev, NV50_PDISPLAY_INTR_0, 0x00010000 << chid);
954 addr = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_ADDR(chid));
955 data = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_DATA(chid));
956 NV_ERROR(dev, "EvoCh %d Mthd 0x%04x Data 0x%08x "
957 "(0x%04x 0x%02x)\n", chid,
958 addr & 0xffc, data, addr >> 16, (addr >> 12) & 0xf);
959
960 nv_wr32(dev, NV50_PDISPLAY_TRAPPED_ADDR(chid), 0x90000000);
961 }
962 }
963
964 static void
965 nv50_display_isr(struct drm_device *dev)
966 {
967 struct nv50_display *disp = nv50_display(dev);
968 uint32_t delayed = 0;
969
970 while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) {
971 uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
972 uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
973 uint32_t clock;
974
975 NV_DEBUG_KMS(dev, "PDISPLAY_INTR 0x%08x 0x%08x\n", intr0, intr1);
976
977 if (!intr0 && !(intr1 & ~delayed))
978 break;
979
980 if (intr0 & 0x001f0000) {
981 nv50_display_error_handler(dev);
982 intr0 &= ~0x001f0000;
983 }
984
985 if (intr1 & NV50_PDISPLAY_INTR_1_VBLANK_CRTC) {
986 nv50_display_vblank_handler(dev, intr1);
987 intr1 &= ~NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
988 }
989
990 clock = (intr1 & (NV50_PDISPLAY_INTR_1_CLK_UNK10 |
991 NV50_PDISPLAY_INTR_1_CLK_UNK20 |
992 NV50_PDISPLAY_INTR_1_CLK_UNK40));
993 if (clock) {
994 nv_wr32(dev, NV03_PMC_INTR_EN_0, 0);
995 tasklet_schedule(&disp->tasklet);
996 delayed |= clock;
997 intr1 &= ~clock;
998 }
999
1000 if (intr0) {
1001 NV_ERROR(dev, "unknown PDISPLAY_INTR_0: 0x%08x\n", intr0);
1002 nv_wr32(dev, NV50_PDISPLAY_INTR_0, intr0);
1003 }
1004
1005 if (intr1) {
1006 NV_ERROR(dev,
1007 "unknown PDISPLAY_INTR_1: 0x%08x\n", intr1);
1008 nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr1);
1009 }
1010 }
1011 }
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