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Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / drivers / gpu / drm / nouveau / nv50_crtc.c
blob46ad59ea2185a720cfb3a07db0c82b3ac2ad22e8
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 "drmP.h"
28 #include "drm_mode.h"
29 #include "drm_crtc_helper.h"
30
31 #define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
32 #include "nouveau_reg.h"
33 #include "nouveau_drv.h"
34 #include "nouveau_hw.h"
35 #include "nouveau_encoder.h"
36 #include "nouveau_crtc.h"
37 #include "nouveau_fb.h"
38 #include "nouveau_connector.h"
39 #include "nv50_display.h"
40
41 static void
42 nv50_crtc_lut_load(struct drm_crtc *crtc)
43 {
44 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
45 void __iomem *lut = nvbo_kmap_obj_iovirtual(nv_crtc->lut.nvbo);
46 int i;
47
48 NV_DEBUG_KMS(crtc->dev, "\n");
49
50 for (i = 0; i < 256; i++) {
51 writew(nv_crtc->lut.r[i] >> 2, lut + 8*i + 0);
52 writew(nv_crtc->lut.g[i] >> 2, lut + 8*i + 2);
53 writew(nv_crtc->lut.b[i] >> 2, lut + 8*i + 4);
54 }
55
56 if (nv_crtc->lut.depth == 30) {
57 writew(nv_crtc->lut.r[i - 1] >> 2, lut + 8*i + 0);
58 writew(nv_crtc->lut.g[i - 1] >> 2, lut + 8*i + 2);
59 writew(nv_crtc->lut.b[i - 1] >> 2, lut + 8*i + 4);
60 }
61 }
62
63 int
64 nv50_crtc_blank(struct nouveau_crtc *nv_crtc, bool blanked)
65 {
66 struct drm_device *dev = nv_crtc->base.dev;
67 struct drm_nouveau_private *dev_priv = dev->dev_private;
68 struct nouveau_channel *evo = nv50_display(dev)->master;
69 int index = nv_crtc->index, ret;
70
71 NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
72 NV_DEBUG_KMS(dev, "%s\n", blanked ? "blanked" : "unblanked");
73
74 if (blanked) {
75 nv_crtc->cursor.hide(nv_crtc, false);
76
77 ret = RING_SPACE(evo, dev_priv->chipset != 0x50 ? 7 : 5);
78 if (ret) {
79 NV_ERROR(dev, "no space while blanking crtc\n");
80 return ret;
81 }
82 BEGIN_RING(evo, 0, NV50_EVO_CRTC(index, CLUT_MODE), 2);
83 OUT_RING(evo, NV50_EVO_CRTC_CLUT_MODE_BLANK);
84 OUT_RING(evo, 0);
85 if (dev_priv->chipset != 0x50) {
86 BEGIN_RING(evo, 0, NV84_EVO_CRTC(index, CLUT_DMA), 1);
87 OUT_RING(evo, NV84_EVO_CRTC_CLUT_DMA_HANDLE_NONE);
88 }
89
90 BEGIN_RING(evo, 0, NV50_EVO_CRTC(index, FB_DMA), 1);
91 OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
92 } else {
93 if (nv_crtc->cursor.visible)
94 nv_crtc->cursor.show(nv_crtc, false);
95 else
96 nv_crtc->cursor.hide(nv_crtc, false);
97
98 ret = RING_SPACE(evo, dev_priv->chipset != 0x50 ? 10 : 8);
99 if (ret) {
100 NV_ERROR(dev, "no space while unblanking crtc\n");
101 return ret;
102 }
103 BEGIN_RING(evo, 0, NV50_EVO_CRTC(index, CLUT_MODE), 2);
104 OUT_RING(evo, nv_crtc->lut.depth == 8 ?
105 NV50_EVO_CRTC_CLUT_MODE_OFF :
106 NV50_EVO_CRTC_CLUT_MODE_ON);
107 OUT_RING(evo, nv_crtc->lut.nvbo->bo.offset >> 8);
108 if (dev_priv->chipset != 0x50) {
109 BEGIN_RING(evo, 0, NV84_EVO_CRTC(index, CLUT_DMA), 1);
110 OUT_RING(evo, NvEvoVRAM);
111 }
112
113 BEGIN_RING(evo, 0, NV50_EVO_CRTC(index, FB_OFFSET), 2);
114 OUT_RING(evo, nv_crtc->fb.offset >> 8);
115 OUT_RING(evo, 0);
116 BEGIN_RING(evo, 0, NV50_EVO_CRTC(index, FB_DMA), 1);
117 if (dev_priv->chipset != 0x50)
118 if (nv_crtc->fb.tile_flags == 0x7a00 ||
119 nv_crtc->fb.tile_flags == 0xfe00)
120 OUT_RING(evo, NvEvoFB32);
121 else
122 if (nv_crtc->fb.tile_flags == 0x7000)
123 OUT_RING(evo, NvEvoFB16);
124 else
125 OUT_RING(evo, NvEvoVRAM_LP);
126 else
127 OUT_RING(evo, NvEvoVRAM_LP);
128 }
129
130 nv_crtc->fb.blanked = blanked;
131 return 0;
132 }
133
134 static int
135 nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool on, bool update)
136 {
137 struct drm_device *dev = nv_crtc->base.dev;
138 struct nouveau_channel *evo = nv50_display(dev)->master;
139 int ret;
140
141 NV_DEBUG_KMS(dev, "\n");
142
143 ret = RING_SPACE(evo, 2 + (update ? 2 : 0));
144 if (ret) {
145 NV_ERROR(dev, "no space while setting dither\n");
146 return ret;
147 }
148
149 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, DITHER_CTRL), 1);
150 if (on)
151 OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_ON);
152 else
153 OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_OFF);
154
155 if (update) {
156 BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
157 OUT_RING(evo, 0);
158 FIRE_RING(evo);
159 }
160
161 return 0;
162 }
163
164 struct nouveau_connector *
165 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
166 {
167 struct drm_device *dev = nv_crtc->base.dev;
168 struct drm_connector *connector;
169 struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
170
171 /* The safest approach is to find an encoder with the right crtc, that
172 * is also linked to a connector. */
173 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
174 if (connector->encoder)
175 if (connector->encoder->crtc == crtc)
176 return nouveau_connector(connector);
177 }
178
179 return NULL;
180 }
181
182 static int
183 nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, int scaling_mode, bool update)
184 {
185 struct nouveau_connector *nv_connector =
186 nouveau_crtc_connector_get(nv_crtc);
187 struct drm_device *dev = nv_crtc->base.dev;
188 struct nouveau_channel *evo = nv50_display(dev)->master;
189 struct drm_display_mode *native_mode = NULL;
190 struct drm_display_mode *mode = &nv_crtc->base.mode;
191 uint32_t outX, outY, horiz, vert;
192 int ret;
193
194 NV_DEBUG_KMS(dev, "\n");
195
196 switch (scaling_mode) {
197 case DRM_MODE_SCALE_NONE:
198 break;
199 default:
200 if (!nv_connector || !nv_connector->native_mode) {
201 NV_ERROR(dev, "No native mode, forcing panel scaling\n");
202 scaling_mode = DRM_MODE_SCALE_NONE;
203 } else {
204 native_mode = nv_connector->native_mode;
205 }
206 break;
207 }
208
209 switch (scaling_mode) {
210 case DRM_MODE_SCALE_ASPECT:
211 horiz = (native_mode->hdisplay << 19) / mode->hdisplay;
212 vert = (native_mode->vdisplay << 19) / mode->vdisplay;
213
214 if (vert > horiz) {
215 outX = (mode->hdisplay * horiz) >> 19;
216 outY = (mode->vdisplay * horiz) >> 19;
217 } else {
218 outX = (mode->hdisplay * vert) >> 19;
219 outY = (mode->vdisplay * vert) >> 19;
220 }
221 break;
222 case DRM_MODE_SCALE_FULLSCREEN:
223 outX = native_mode->hdisplay;
224 outY = native_mode->vdisplay;
225 break;
226 case DRM_MODE_SCALE_CENTER:
227 case DRM_MODE_SCALE_NONE:
228 default:
229 outX = mode->hdisplay;
230 outY = mode->vdisplay;
231 break;
232 }
233
234 ret = RING_SPACE(evo, update ? 7 : 5);
235 if (ret)
236 return ret;
237
238 /* Got a better name for SCALER_ACTIVE? */
239 /* One day i've got to really figure out why this is needed. */
240 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_CTRL), 1);
241 if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) ||
242 (mode->flags & DRM_MODE_FLAG_INTERLACE) ||
243 mode->hdisplay != outX || mode->vdisplay != outY) {
244 OUT_RING(evo, NV50_EVO_CRTC_SCALE_CTRL_ACTIVE);
245 } else {
246 OUT_RING(evo, NV50_EVO_CRTC_SCALE_CTRL_INACTIVE);
247 }
248
249 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_RES1), 2);
250 OUT_RING(evo, outY << 16 | outX);
251 OUT_RING(evo, outY << 16 | outX);
252
253 if (update) {
254 BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
255 OUT_RING(evo, 0);
256 FIRE_RING(evo);
257 }
258
259 return 0;
260 }
261
262 int
263 nv50_crtc_set_clock(struct drm_device *dev, int head, int pclk)
264 {
265 struct drm_nouveau_private *dev_priv = dev->dev_private;
266 struct pll_lims pll;
267 uint32_t reg1, reg2;
268 int ret, N1, M1, N2, M2, P;
269
270 ret = get_pll_limits(dev, PLL_VPLL0 + head, &pll);
271 if (ret)
272 return ret;
273
274 if (pll.vco2.maxfreq) {
275 ret = nv50_calc_pll(dev, &pll, pclk, &N1, &M1, &N2, &M2, &P);
276 if (ret <= 0)
277 return 0;
278
279 NV_DEBUG(dev, "pclk %d out %d NM1 %d %d NM2 %d %d P %d\n",
280 pclk, ret, N1, M1, N2, M2, P);
281
282 reg1 = nv_rd32(dev, pll.reg + 4) & 0xff00ff00;
283 reg2 = nv_rd32(dev, pll.reg + 8) & 0x8000ff00;
284 nv_wr32(dev, pll.reg + 0, 0x10000611);
285 nv_wr32(dev, pll.reg + 4, reg1 | (M1 << 16) | N1);
286 nv_wr32(dev, pll.reg + 8, reg2 | (P << 28) | (M2 << 16) | N2);
287 } else
288 if (dev_priv->chipset < NV_C0) {
289 ret = nva3_calc_pll(dev, &pll, pclk, &N1, &N2, &M1, &P);
290 if (ret <= 0)
291 return 0;
292
293 NV_DEBUG(dev, "pclk %d out %d N %d fN 0x%04x M %d P %d\n",
294 pclk, ret, N1, N2, M1, P);
295
296 reg1 = nv_rd32(dev, pll.reg + 4) & 0xffc00000;
297 nv_wr32(dev, pll.reg + 0, 0x50000610);
298 nv_wr32(dev, pll.reg + 4, reg1 | (P << 16) | (M1 << 8) | N1);
299 nv_wr32(dev, pll.reg + 8, N2);
300 } else {
301 ret = nva3_calc_pll(dev, &pll, pclk, &N1, &N2, &M1, &P);
302 if (ret <= 0)
303 return 0;
304
305 NV_DEBUG(dev, "pclk %d out %d N %d fN 0x%04x M %d P %d\n",
306 pclk, ret, N1, N2, M1, P);
307
308 nv_mask(dev, pll.reg + 0x0c, 0x00000000, 0x00000100);
309 nv_wr32(dev, pll.reg + 0x04, (P << 16) | (N1 << 8) | M1);
310 nv_wr32(dev, pll.reg + 0x10, N2 << 16);
311 }
312
313 return 0;
314 }
315
316 static void
317 nv50_crtc_destroy(struct drm_crtc *crtc)
318 {
319 struct drm_device *dev;
320 struct nouveau_crtc *nv_crtc;
321
322 if (!crtc)
323 return;
324
325 dev = crtc->dev;
326 nv_crtc = nouveau_crtc(crtc);
327
328 NV_DEBUG_KMS(dev, "\n");
329
330 drm_crtc_cleanup(&nv_crtc->base);
331
332 nv50_cursor_fini(nv_crtc);
333
334 nouveau_bo_unmap(nv_crtc->lut.nvbo);
335 nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
336 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
337 nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
338 kfree(nv_crtc->mode);
339 kfree(nv_crtc);
340 }
341
342 int
343 nv50_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
344 uint32_t buffer_handle, uint32_t width, uint32_t height)
345 {
346 struct drm_device *dev = crtc->dev;
347 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
348 struct nouveau_bo *cursor = NULL;
349 struct drm_gem_object *gem;
350 int ret = 0, i;
351
352 if (!buffer_handle) {
353 nv_crtc->cursor.hide(nv_crtc, true);
354 return 0;
355 }
356
357 if (width != 64 || height != 64)
358 return -EINVAL;
359
360 gem = drm_gem_object_lookup(dev, file_priv, buffer_handle);
361 if (!gem)
362 return -ENOENT;
363 cursor = nouveau_gem_object(gem);
364
365 ret = nouveau_bo_map(cursor);
366 if (ret)
367 goto out;
368
369 /* The simple will do for now. */
370 for (i = 0; i < 64 * 64; i++)
371 nouveau_bo_wr32(nv_crtc->cursor.nvbo, i, nouveau_bo_rd32(cursor, i));
372
373 nouveau_bo_unmap(cursor);
374
375 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
376 nv_crtc->cursor.show(nv_crtc, true);
377
378 out:
379 drm_gem_object_unreference_unlocked(gem);
380 return ret;
381 }
382
383 int
384 nv50_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
385 {
386 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
387
388 nv_crtc->cursor.set_pos(nv_crtc, x, y);
389 return 0;
390 }
391
392 static void
393 nv50_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
394 uint32_t start, uint32_t size)
395 {
396 int end = (start + size > 256) ? 256 : start + size, i;
397 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
398
399 for (i = start; i < end; i++) {
400 nv_crtc->lut.r[i] = r[i];
401 nv_crtc->lut.g[i] = g[i];
402 nv_crtc->lut.b[i] = b[i];
403 }
404
405 /* We need to know the depth before we upload, but it's possible to
406 * get called before a framebuffer is bound. If this is the case,
407 * mark the lut values as dirty by setting depth==0, and it'll be
408 * uploaded on the first mode_set_base()
409 */
410 if (!nv_crtc->base.fb) {
411 nv_crtc->lut.depth = 0;
412 return;
413 }
414
415 nv50_crtc_lut_load(crtc);
416 }
417
418 static void
419 nv50_crtc_save(struct drm_crtc *crtc)
420 {
421 NV_ERROR(crtc->dev, "!!\n");
422 }
423
424 static void
425 nv50_crtc_restore(struct drm_crtc *crtc)
426 {
427 NV_ERROR(crtc->dev, "!!\n");
428 }
429
430 static const struct drm_crtc_funcs nv50_crtc_funcs = {
431 .save = nv50_crtc_save,
432 .restore = nv50_crtc_restore,
433 .cursor_set = nv50_crtc_cursor_set,
434 .cursor_move = nv50_crtc_cursor_move,
435 .gamma_set = nv50_crtc_gamma_set,
436 .set_config = drm_crtc_helper_set_config,
437 .page_flip = nouveau_crtc_page_flip,
438 .destroy = nv50_crtc_destroy,
439 };
440
441 static void
442 nv50_crtc_dpms(struct drm_crtc *crtc, int mode)
443 {
444 }
445
446 static int
447 nv50_crtc_wait_complete(struct drm_crtc *crtc)
448 {
449 struct drm_device *dev = crtc->dev;
450 struct drm_nouveau_private *dev_priv = dev->dev_private;
451 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
452 struct nv50_display *disp = nv50_display(dev);
453 struct nouveau_channel *evo = disp->master;
454 u64 start;
455 int ret;
456
457 ret = RING_SPACE(evo, 6);
458 if (ret)
459 return ret;
460 BEGIN_RING(evo, 0, 0x0084, 1);
461 OUT_RING (evo, 0x80000000);
462 BEGIN_RING(evo, 0, 0x0080, 1);
463 OUT_RING (evo, 0);
464 BEGIN_RING(evo, 0, 0x0084, 1);
465 OUT_RING (evo, 0x00000000);
466
467 nv_wo32(disp->ntfy, 0x000, 0x00000000);
468 FIRE_RING (evo);
469
470 start = ptimer->read(dev);
471 do {
472 if (nv_ro32(disp->ntfy, 0x000))
473 return 0;
474 } while (ptimer->read(dev) - start < 2000000000ULL);
475
476 return -EBUSY;
477 }
478
479 static void
480 nv50_crtc_prepare(struct drm_crtc *crtc)
481 {
482 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
483 struct drm_device *dev = crtc->dev;
484
485 NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
486
487 nv50_display_flip_stop(crtc);
488 drm_vblank_pre_modeset(dev, nv_crtc->index);
489 nv50_crtc_blank(nv_crtc, true);
490 }
491
492 static void
493 nv50_crtc_commit(struct drm_crtc *crtc)
494 {
495 struct drm_device *dev = crtc->dev;
496 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
497
498 NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
499
500 nv50_crtc_blank(nv_crtc, false);
501 drm_vblank_post_modeset(dev, nv_crtc->index);
502 nv50_crtc_wait_complete(crtc);
503 nv50_display_flip_next(crtc, crtc->fb, NULL);
504 }
505
506 static bool
507 nv50_crtc_mode_fixup(struct drm_crtc *crtc, struct drm_display_mode *mode,
508 struct drm_display_mode *adjusted_mode)
509 {
510 return true;
511 }
512
513 static int
514 nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
515 struct drm_framebuffer *passed_fb,
516 int x, int y, bool atomic)
517 {
518 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
519 struct drm_device *dev = nv_crtc->base.dev;
520 struct drm_nouveau_private *dev_priv = dev->dev_private;
521 struct nouveau_channel *evo = nv50_display(dev)->master;
522 struct drm_framebuffer *drm_fb = nv_crtc->base.fb;
523 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
524 int ret;
525
526 NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
527
528 /* If atomic, we want to switch to the fb we were passed, so
529 * now we update pointers to do that. (We don't pin; just
530 * assume we're already pinned and update the base address.)
531 */
532 if (atomic) {
533 drm_fb = passed_fb;
534 fb = nouveau_framebuffer(passed_fb);
535 } else {
536 /* If not atomic, we can go ahead and pin, and unpin the
537 * old fb we were passed.
538 */
539 ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM);
540 if (ret)
541 return ret;
542
543 if (passed_fb) {
544 struct nouveau_framebuffer *ofb = nouveau_framebuffer(passed_fb);
545 nouveau_bo_unpin(ofb->nvbo);
546 }
547 }
548
549 nv_crtc->fb.offset = fb->nvbo->bo.offset;
550 nv_crtc->fb.tile_flags = nouveau_bo_tile_layout(fb->nvbo);
551 nv_crtc->fb.cpp = drm_fb->bits_per_pixel / 8;
552 if (!nv_crtc->fb.blanked && dev_priv->chipset != 0x50) {
553 ret = RING_SPACE(evo, 2);
554 if (ret)
555 return ret;
556
557 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, FB_DMA), 1);
558 OUT_RING (evo, fb->r_dma);
559 }
560
561 ret = RING_SPACE(evo, 12);
562 if (ret)
563 return ret;
564
565 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, FB_OFFSET), 5);
566 OUT_RING (evo, nv_crtc->fb.offset >> 8);
567 OUT_RING (evo, 0);
568 OUT_RING (evo, (drm_fb->height << 16) | drm_fb->width);
569 OUT_RING (evo, fb->r_pitch);
570 OUT_RING (evo, fb->r_format);
571
572 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CLUT_MODE), 1);
573 OUT_RING (evo, fb->base.depth == 8 ?
574 NV50_EVO_CRTC_CLUT_MODE_OFF : NV50_EVO_CRTC_CLUT_MODE_ON);
575
576 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, COLOR_CTRL), 1);
577 OUT_RING (evo, NV50_EVO_CRTC_COLOR_CTRL_COLOR);
578 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, FB_POS), 1);
579 OUT_RING (evo, (y << 16) | x);
580
581 if (nv_crtc->lut.depth != fb->base.depth) {
582 nv_crtc->lut.depth = fb->base.depth;
583 nv50_crtc_lut_load(crtc);
584 }
585
586 return 0;
587 }
588
589 static int
590 nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
591 struct drm_display_mode *adjusted_mode, int x, int y,
592 struct drm_framebuffer *old_fb)
593 {
594 struct drm_device *dev = crtc->dev;
595 struct nouveau_channel *evo = nv50_display(dev)->master;
596 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
597 struct nouveau_connector *nv_connector = NULL;
598 uint32_t hsync_dur, vsync_dur, hsync_start_to_end, vsync_start_to_end;
599 uint32_t hunk1, vunk1, vunk2a, vunk2b;
600 int ret;
601
602 /* Find the connector attached to this CRTC */
603 nv_connector = nouveau_crtc_connector_get(nv_crtc);
604
605 *nv_crtc->mode = *adjusted_mode;
606
607 NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
608
609 hsync_dur = adjusted_mode->hsync_end - adjusted_mode->hsync_start;
610 vsync_dur = adjusted_mode->vsync_end - adjusted_mode->vsync_start;
611 hsync_start_to_end = adjusted_mode->htotal - adjusted_mode->hsync_start;
612 vsync_start_to_end = adjusted_mode->vtotal - adjusted_mode->vsync_start;
613 /* I can't give this a proper name, anyone else can? */
614 hunk1 = adjusted_mode->htotal -
615 adjusted_mode->hsync_start + adjusted_mode->hdisplay;
616 vunk1 = adjusted_mode->vtotal -
617 adjusted_mode->vsync_start + adjusted_mode->vdisplay;
618 /* Another strange value, this time only for interlaced adjusted_modes. */
619 vunk2a = 2 * adjusted_mode->vtotal -
620 adjusted_mode->vsync_start + adjusted_mode->vdisplay;
621 vunk2b = adjusted_mode->vtotal -
622 adjusted_mode->vsync_start + adjusted_mode->vtotal;
623
624 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
625 vsync_dur /= 2;
626 vsync_start_to_end /= 2;
627 vunk1 /= 2;
628 vunk2a /= 2;
629 vunk2b /= 2;
630 /* magic */
631 if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) {
632 vsync_start_to_end -= 1;
633 vunk1 -= 1;
634 vunk2a -= 1;
635 vunk2b -= 1;
636 }
637 }
638
639 ret = RING_SPACE(evo, 17);
640 if (ret)
641 return ret;
642
643 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CLOCK), 2);
644 OUT_RING(evo, adjusted_mode->clock | 0x800000);
645 OUT_RING(evo, (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 0);
646
647 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, DISPLAY_START), 5);
648 OUT_RING(evo, 0);
649 OUT_RING(evo, (adjusted_mode->vtotal << 16) | adjusted_mode->htotal);
650 OUT_RING(evo, (vsync_dur - 1) << 16 | (hsync_dur - 1));
651 OUT_RING(evo, (vsync_start_to_end - 1) << 16 |
652 (hsync_start_to_end - 1));
653 OUT_RING(evo, (vunk1 - 1) << 16 | (hunk1 - 1));
654
655 if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
656 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK0824), 1);
657 OUT_RING(evo, (vunk2b - 1) << 16 | (vunk2a - 1));
658 } else {
659 OUT_RING(evo, 0);
660 OUT_RING(evo, 0);
661 }
662
663 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK082C), 1);
664 OUT_RING(evo, 0);
665
666 /* This is the actual resolution of the mode. */
667 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, REAL_RES), 1);
668 OUT_RING(evo, (mode->vdisplay << 16) | mode->hdisplay);
669 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_CENTER_OFFSET), 1);
670 OUT_RING(evo, NV50_EVO_CRTC_SCALE_CENTER_OFFSET_VAL(0, 0));
671
672 nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering, false);
673 nv_crtc->set_scale(nv_crtc, nv_connector->scaling_mode, false);
674
675 return nv50_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
676 }
677
678 static int
679 nv50_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
680 struct drm_framebuffer *old_fb)
681 {
682 int ret;
683
684 nv50_display_flip_stop(crtc);
685 ret = nv50_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
686 if (ret)
687 return ret;
688
689 ret = nv50_crtc_wait_complete(crtc);
690 if (ret)
691 return ret;
692
693 return nv50_display_flip_next(crtc, crtc->fb, NULL);
694 }
695
696 static int
697 nv50_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
698 struct drm_framebuffer *fb,
699 int x, int y, enum mode_set_atomic state)
700 {
701 int ret;
702
703 nv50_display_flip_stop(crtc);
704 ret = nv50_crtc_do_mode_set_base(crtc, fb, x, y, true);
705 if (ret)
706 return ret;
707
708 return nv50_crtc_wait_complete(crtc);
709 }
710
711 static const struct drm_crtc_helper_funcs nv50_crtc_helper_funcs = {
712 .dpms = nv50_crtc_dpms,
713 .prepare = nv50_crtc_prepare,
714 .commit = nv50_crtc_commit,
715 .mode_fixup = nv50_crtc_mode_fixup,
716 .mode_set = nv50_crtc_mode_set,
717 .mode_set_base = nv50_crtc_mode_set_base,
718 .mode_set_base_atomic = nv50_crtc_mode_set_base_atomic,
719 .load_lut = nv50_crtc_lut_load,
720 };
721
722 int
723 nv50_crtc_create(struct drm_device *dev, int index)
724 {
725 struct nouveau_crtc *nv_crtc = NULL;
726 int ret, i;
727
728 NV_DEBUG_KMS(dev, "\n");
729
730 nv_crtc = kzalloc(sizeof(*nv_crtc), GFP_KERNEL);
731 if (!nv_crtc)
732 return -ENOMEM;
733
734 nv_crtc->mode = kzalloc(sizeof(*nv_crtc->mode), GFP_KERNEL);
735 if (!nv_crtc->mode) {
736 kfree(nv_crtc);
737 return -ENOMEM;
738 }
739
740 /* Default CLUT parameters, will be activated on the hw upon
741 * first mode set.
742 */
743 for (i = 0; i < 256; i++) {
744 nv_crtc->lut.r[i] = i << 8;
745 nv_crtc->lut.g[i] = i << 8;
746 nv_crtc->lut.b[i] = i << 8;
747 }
748 nv_crtc->lut.depth = 0;
749
750 ret = nouveau_bo_new(dev, 4096, 0x100, TTM_PL_FLAG_VRAM,
751 0, 0x0000, &nv_crtc->lut.nvbo);
752 if (!ret) {
753 ret = nouveau_bo_pin(nv_crtc->lut.nvbo, TTM_PL_FLAG_VRAM);
754 if (!ret)
755 ret = nouveau_bo_map(nv_crtc->lut.nvbo);
756 if (ret)
757 nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
758 }
759
760 if (ret) {
761 kfree(nv_crtc->mode);
762 kfree(nv_crtc);
763 return ret;
764 }
765
766 nv_crtc->index = index;
767
768 /* set function pointers */
769 nv_crtc->set_dither = nv50_crtc_set_dither;
770 nv_crtc->set_scale = nv50_crtc_set_scale;
771
772 drm_crtc_init(dev, &nv_crtc->base, &nv50_crtc_funcs);
773 drm_crtc_helper_add(&nv_crtc->base, &nv50_crtc_helper_funcs);
774 drm_mode_crtc_set_gamma_size(&nv_crtc->base, 256);
775
776 ret = nouveau_bo_new(dev, 64*64*4, 0x100, TTM_PL_FLAG_VRAM,
777 0, 0x0000, &nv_crtc->cursor.nvbo);
778 if (!ret) {
779 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
780 if (!ret)
781 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
782 if (ret)
783 nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
784 }
785
786 nv50_cursor_init(nv_crtc);
787 return 0;
788 }
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