1/* 2 * Copyright 2018 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#include "head.h" 23#include "base.h" 24#include "core.h" 25#include "curs.h" 26#include "ovly.h" 27#include "crc.h" 28 29#include <nvif/class.h> 30#include <nvif/event.h> 31#include <nvif/cl0046.h> 32 33#include <drm/drm_atomic.h> 34#include <drm/drm_atomic_helper.h> 35#include <drm/drm_edid.h> 36#include <drm/drm_vblank.h> 37#include "nouveau_connector.h" 38 39void 40nv50_head_flush_clr(struct nv50_head *head, 41 struct nv50_head_atom *asyh, bool flush) 42{ 43 union nv50_head_atom_mask clr = { 44 .mask = asyh->clr.mask & ~(flush ? 0 : asyh->set.mask), 45 }; 46 if (clr.crc) nv50_crc_atomic_clr(head); 47 if (clr.olut) head->func->olut_clr(head); 48 if (clr.core) head->func->core_clr(head); 49 if (clr.curs) head->func->curs_clr(head); 50} 51 52void 53nv50_head_flush_set_wndw(struct nv50_head *head, struct nv50_head_atom *asyh) 54{ 55 if (asyh->set.curs ) head->func->curs_set(head, asyh); 56 if (asyh->set.olut ) { 57 asyh->olut.offset = nv50_lut_load(&head->olut, 58 asyh->olut.buffer, 59 asyh->state.gamma_lut, 60 asyh->olut.load); 61 head->func->olut_set(head, asyh); 62 } 63} 64 65void 66nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh) 67{ 68 if (asyh->set.view ) head->func->view (head, asyh); 69 if (asyh->set.mode ) head->func->mode (head, asyh); 70 if (asyh->set.core ) head->func->core_set(head, asyh); 71 if (asyh->set.base ) head->func->base (head, asyh); 72 if (asyh->set.ovly ) head->func->ovly (head, asyh); 73 if (asyh->set.dither ) head->func->dither (head, asyh); 74 if (asyh->set.procamp) head->func->procamp (head, asyh); 75 if (asyh->set.crc ) nv50_crc_atomic_set (head, asyh); 76 if (asyh->set.or ) head->func->or (head, asyh); 77} 78 79static void 80nv50_head_atomic_check_procamp(struct nv50_head_atom *armh, 81 struct nv50_head_atom *asyh, 82 struct nouveau_conn_atom *asyc) 83{ 84 const int vib = asyc->procamp.color_vibrance - 100; 85 const int hue = asyc->procamp.vibrant_hue - 90; 86 const int adj = (vib > 0) ? 50 : 0; 87 asyh->procamp.sat.cos = ((vib * 2047 + adj) / 100) & 0xfff; 88 asyh->procamp.sat.sin = ((hue * 2047) / 100) & 0xfff; 89 asyh->set.procamp = true; 90} 91 92static void 93nv50_head_atomic_check_dither(struct nv50_head_atom *armh, 94 struct nv50_head_atom *asyh, 95 struct nouveau_conn_atom *asyc) 96{ 97 u32 mode = 0x00; 98 99 if (asyc->dither.mode) { 100 if (asyc->dither.mode == DITHERING_MODE_AUTO) { 101 if (asyh->base.depth > asyh->or.bpc * 3) 102 mode = DITHERING_MODE_DYNAMIC2X2; 103 } else { 104 mode = asyc->dither.mode; 105 } 106 107 if (asyc->dither.depth == DITHERING_DEPTH_AUTO) { 108 if (asyh->or.bpc >= 8) 109 mode |= DITHERING_DEPTH_8BPC; 110 } else { 111 mode |= asyc->dither.depth; 112 } 113 } 114 115 asyh->dither.enable = NVVAL_GET(mode, NV507D, HEAD_SET_DITHER_CONTROL, ENABLE); 116 asyh->dither.bits = NVVAL_GET(mode, NV507D, HEAD_SET_DITHER_CONTROL, BITS); 117 asyh->dither.mode = NVVAL_GET(mode, NV507D, HEAD_SET_DITHER_CONTROL, MODE); 118 asyh->set.dither = true; 119} 120 121static void 122nv50_head_atomic_check_view(struct nv50_head_atom *armh, 123 struct nv50_head_atom *asyh, 124 struct nouveau_conn_atom *asyc) 125{ 126 struct drm_connector *connector = asyc->state.connector; 127 struct drm_display_mode *omode = &asyh->state.adjusted_mode; 128 struct drm_display_mode *umode = &asyh->state.mode; 129 int mode = asyc->scaler.mode; 130 struct edid *edid; 131 int umode_vdisplay, omode_hdisplay, omode_vdisplay; 132 133 if (connector->edid_blob_ptr) 134 edid = (struct edid *)connector->edid_blob_ptr->data; 135 else 136 edid = NULL; 137 138 if (!asyc->scaler.full) { 139 if (mode == DRM_MODE_SCALE_NONE) 140 omode = umode; 141 } else { 142 /* Non-EDID LVDS/eDP mode. */ 143 mode = DRM_MODE_SCALE_FULLSCREEN; 144 } 145 146 /* For the user-specified mode, we must ignore doublescan and 147 * the like, but honor frame packing. 148 */ 149 umode_vdisplay = umode->vdisplay; 150 if ((umode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) 151 umode_vdisplay += umode->vtotal; 152 asyh->view.iW = umode->hdisplay; 153 asyh->view.iH = umode_vdisplay; 154 /* For the output mode, we can just use the stock helper. */ 155 drm_mode_get_hv_timing(omode, &omode_hdisplay, &omode_vdisplay); 156 asyh->view.oW = omode_hdisplay; 157 asyh->view.oH = omode_vdisplay; 158 159 /* Add overscan compensation if necessary, will keep the aspect 160 * ratio the same as the backend mode unless overridden by the 161 * user setting both hborder and vborder properties. 162 */ 163 if ((asyc->scaler.underscan.mode == UNDERSCAN_ON || 164 (asyc->scaler.underscan.mode == UNDERSCAN_AUTO && 165 drm_detect_hdmi_monitor(edid)))) { 166 u32 bX = asyc->scaler.underscan.hborder; 167 u32 bY = asyc->scaler.underscan.vborder; 168 u32 r = (asyh->view.oH << 19) / asyh->view.oW; 169 170 if (bX) { 171 asyh->view.oW -= (bX * 2); 172 if (bY) asyh->view.oH -= (bY * 2); 173 else asyh->view.oH = ((asyh->view.oW * r) + (r / 2)) >> 19; 174 } else { 175 asyh->view.oW -= (asyh->view.oW >> 4) + 32; 176 if (bY) asyh->view.oH -= (bY * 2); 177 else asyh->view.oH = ((asyh->view.oW * r) + (r / 2)) >> 19; 178 } 179 } 180 181 /* Handle CENTER/ASPECT scaling, taking into account the areas 182 * removed already for overscan compensation. 183 */ 184 switch (mode) { 185 case DRM_MODE_SCALE_CENTER: 186 /* NOTE: This will cause scaling when the input is 187 * larger than the output. 188 */ 189 asyh->view.oW = min(asyh->view.iW, asyh->view.oW); 190 asyh->view.oH = min(asyh->view.iH, asyh->view.oH); 191 break; 192 case DRM_MODE_SCALE_ASPECT: 193 /* Determine whether the scaling should be on width or on 194 * height. This is done by comparing the aspect ratios of the 195 * sizes. If the output AR is larger than input AR, that means 196 * we want to change the width (letterboxed on the 197 * left/right), otherwise on the height (letterboxed on the 198 * top/bottom). 199 * 200 * E.g. 4:3 (1.333) AR image displayed on a 16:10 (1.6) AR 201 * screen will have letterboxes on the left/right. However a 202 * 16:9 (1.777) AR image on that same screen will have 203 * letterboxes on the top/bottom. 204 * 205 * inputAR = iW / iH; outputAR = oW / oH 206 * outputAR > inputAR is equivalent to oW * iH > iW * oH 207 */ 208 if (asyh->view.oW * asyh->view.iH > asyh->view.iW * asyh->view.oH) { 209 /* Recompute output width, i.e. left/right letterbox */ 210 u32 r = (asyh->view.iW << 19) / asyh->view.iH; 211 asyh->view.oW = ((asyh->view.oH * r) + (r / 2)) >> 19; 212 } else { 213 /* Recompute output height, i.e. top/bottom letterbox */ 214 u32 r = (asyh->view.iH << 19) / asyh->view.iW; 215 asyh->view.oH = ((asyh->view.oW * r) + (r / 2)) >> 19; 216 } 217 break; 218 default: 219 break; 220 } 221 222 asyh->set.view = true; 223} 224 225static int 226nv50_head_atomic_check_lut(struct nv50_head *head, 227 struct nv50_head_atom *asyh) 228{ 229 struct drm_device *dev = head->base.base.dev; 230 struct drm_crtc *crtc = &head->base.base; 231 struct nv50_disp *disp = nv50_disp(dev); 232 struct nouveau_drm *drm = nouveau_drm(dev); 233 struct drm_property_blob *olut = asyh->state.gamma_lut, 234 *ilut = asyh->state.degamma_lut; 235 int size; 236 237 /* Ensure that the ilut is valid */ 238 if (ilut) { 239 size = drm_color_lut_size(ilut); 240 if (!head->func->ilut_check(size)) { 241 NV_ATOMIC(drm, "Invalid size %d for degamma on [CRTC:%d:%s]\n", 242 size, crtc->base.id, crtc->name); 243 return -EINVAL; 244 } 245 } 246 247 /* Determine whether core output LUT should be enabled. */ 248 if (olut) { 249 /* Check if any window(s) have stolen the core output LUT 250 * to as an input LUT for legacy gamma + I8 colour format. 251 */ 252 if (asyh->wndw.olut) { 253 /* If any window has stolen the core output LUT, 254 * all of them must. 255 */ 256 if (asyh->wndw.olut != asyh->wndw.mask) 257 return -EINVAL; 258 olut = NULL; 259 } 260 } 261 262 if (!olut) { 263 if (!head->func->olut_identity) { 264 asyh->olut.handle = 0; 265 return 0; 266 } 267 size = 0; 268 } else { 269 size = drm_color_lut_size(olut); 270 } 271 272 if (!head->func->olut(head, asyh, size)) { 273 NV_ATOMIC(drm, "Invalid size %d for gamma on [CRTC:%d:%s]\n", 274 size, crtc->base.id, crtc->name); 275 return -EINVAL; 276 } 277 asyh->olut.handle = disp->core->chan.vram.handle; 278 asyh->olut.buffer = !asyh->olut.buffer; 279 280 return 0; 281} 282 283static void 284nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh) 285{ 286 struct drm_display_mode *mode = &asyh->state.adjusted_mode; 287 struct nv50_head_mode *m = &asyh->mode; 288 u32 blankus; 289 290 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V | CRTC_STEREO_DOUBLE); 291 292 /* 293 * DRM modes are defined in terms of a repeating interval 294 * starting with the active display area. The hardware modes 295 * are defined in terms of a repeating interval starting one 296 * unit (pixel or line) into the sync pulse. So, add bias. 297 */ 298 299 m->h.active = mode->crtc_htotal; 300 m->h.synce = mode->crtc_hsync_end - mode->crtc_hsync_start - 1; 301 m->h.blanke = mode->crtc_hblank_end - mode->crtc_hsync_start - 1; 302 m->h.blanks = m->h.blanke + mode->crtc_hdisplay; 303 304 m->v.active = mode->crtc_vtotal; 305 m->v.synce = mode->crtc_vsync_end - mode->crtc_vsync_start - 1; 306 m->v.blanke = mode->crtc_vblank_end - mode->crtc_vsync_start - 1; 307 m->v.blanks = m->v.blanke + mode->crtc_vdisplay; 308 309 /*XXX: Safe underestimate, even "0" works */ 310 blankus = (m->v.active - mode->crtc_vdisplay - 2) * m->h.active; 311 blankus *= 1000; 312 blankus /= mode->crtc_clock; 313 m->v.blankus = blankus; 314 315 if (mode->flags & DRM_MODE_FLAG_INTERLACE) { 316 m->v.blank2e = m->v.active + m->v.blanke; 317 m->v.blank2s = m->v.blank2e + mode->crtc_vdisplay; 318 m->v.active = (m->v.active * 2) + 1; 319 m->interlace = true; 320 } else { 321 m->v.blank2e = 0; 322 m->v.blank2s = 1; 323 m->interlace = false; 324 } 325 m->clock = mode->crtc_clock; 326 327 asyh->or.nhsync = !!(mode->flags & DRM_MODE_FLAG_NHSYNC); 328 asyh->or.nvsync = !!(mode->flags & DRM_MODE_FLAG_NVSYNC); 329 asyh->set.or = head->func->or != NULL; 330 asyh->set.mode = true; 331} 332 333static int 334nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state) 335{ 336 struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, 337 crtc); 338 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, 339 crtc); 340 struct nouveau_drm *drm = nouveau_drm(crtc->dev); 341 struct nv50_head *head = nv50_head(crtc); 342 struct nv50_head_atom *armh = nv50_head_atom(old_crtc_state); 343 struct nv50_head_atom *asyh = nv50_head_atom(crtc_state); 344 struct nouveau_conn_atom *asyc = NULL; 345 struct drm_connector_state *conns; 346 struct drm_connector *conn; 347 int i, ret; 348 bool check_lut = asyh->state.color_mgmt_changed || 349 memcmp(&armh->wndw, &asyh->wndw, sizeof(asyh->wndw)); 350 351 NV_ATOMIC(drm, "%s atomic_check %d\n", crtc->name, asyh->state.active); 352 353 if (check_lut) { 354 ret = nv50_head_atomic_check_lut(head, asyh); 355 if (ret) 356 return ret; 357 } 358 359 if (asyh->state.active) { 360 for_each_new_connector_in_state(asyh->state.state, conn, conns, i) { 361 if (conns->crtc == crtc) { 362 asyc = nouveau_conn_atom(conns); 363 break; 364 } 365 } 366 367 if (armh->state.active) { 368 if (asyc) { 369 if (asyh->state.mode_changed) 370 asyc->set.scaler = true; 371 if (armh->base.depth != asyh->base.depth) 372 asyc->set.dither = true; 373 } 374 } else { 375 if (asyc) 376 asyc->set.mask = ~0; 377 asyh->set.mask = ~0; 378 asyh->set.or = head->func->or != NULL; 379 } 380 381 if (asyh->state.mode_changed || asyh->state.connectors_changed) 382 nv50_head_atomic_check_mode(head, asyh); 383 384 if (check_lut) 385 asyh->olut.visible = asyh->olut.handle != 0; 386 387 if (asyc) { 388 if (asyc->set.scaler) 389 nv50_head_atomic_check_view(armh, asyh, asyc); 390 if (asyc->set.dither) 391 nv50_head_atomic_check_dither(armh, asyh, asyc); 392 if (asyc->set.procamp) 393 nv50_head_atomic_check_procamp(armh, asyh, asyc); 394 } 395 396 if (head->func->core_calc) { 397 head->func->core_calc(head, asyh); 398 if (!asyh->core.visible) 399 asyh->olut.visible = false; 400 } 401 402 asyh->set.base = armh->base.cpp != asyh->base.cpp; 403 asyh->set.ovly = armh->ovly.cpp != asyh->ovly.cpp; 404 } else { 405 asyh->olut.visible = false; 406 asyh->core.visible = false; 407 asyh->curs.visible = false; 408 asyh->base.cpp = 0; 409 asyh->ovly.cpp = 0; 410 } 411 412 if (!drm_atomic_crtc_needs_modeset(&asyh->state)) { 413 if (asyh->core.visible) { 414 if (memcmp(&armh->core, &asyh->core, sizeof(asyh->core))) 415 asyh->set.core = true; 416 } else 417 if (armh->core.visible) { 418 asyh->clr.core = true; 419 } 420 421 if (asyh->curs.visible) { 422 if (memcmp(&armh->curs, &asyh->curs, sizeof(asyh->curs))) 423 asyh->set.curs = true; 424 } else 425 if (armh->curs.visible) { 426 asyh->clr.curs = true; 427 } 428 429 if (asyh->olut.visible) { 430 if (memcmp(&armh->olut, &asyh->olut, sizeof(asyh->olut))) 431 asyh->set.olut = true; 432 } else 433 if (armh->olut.visible) { 434 asyh->clr.olut = true; 435 } 436 } else { 437 asyh->clr.olut = armh->olut.visible; 438 asyh->clr.core = armh->core.visible; 439 asyh->clr.curs = armh->curs.visible; 440 asyh->set.olut = asyh->olut.visible; 441 asyh->set.core = asyh->core.visible; 442 asyh->set.curs = asyh->curs.visible; 443 } 444 445 ret = nv50_crc_atomic_check_head(head, asyh, armh); 446 if (ret) 447 return ret; 448 449 if (asyh->clr.mask || asyh->set.mask) 450 nv50_atom(asyh->state.state)->lock_core = true; 451 return 0; 452} 453 454static const struct drm_crtc_helper_funcs 455nv50_head_help = { 456 .atomic_check = nv50_head_atomic_check, 457 .get_scanout_position = nouveau_display_scanoutpos, 458}; 459 460static void 461nv50_head_atomic_destroy_state(struct drm_crtc *crtc, 462 struct drm_crtc_state *state) 463{ 464 struct nv50_head_atom *asyh = nv50_head_atom(state); 465 __drm_atomic_helper_crtc_destroy_state(&asyh->state); 466 kfree(asyh); 467} 468 469static struct drm_crtc_state * 470nv50_head_atomic_duplicate_state(struct drm_crtc *crtc) 471{ 472 struct nv50_head_atom *armh = nv50_head_atom(crtc->state); 473 struct nv50_head_atom *asyh; 474 if (!(asyh = kmalloc(sizeof(*asyh), GFP_KERNEL))) 475 return NULL; 476 __drm_atomic_helper_crtc_duplicate_state(crtc, &asyh->state); 477 asyh->wndw = armh->wndw; 478 asyh->view = armh->view; 479 asyh->mode = armh->mode; 480 asyh->olut = armh->olut; 481 asyh->core = armh->core; 482 asyh->curs = armh->curs; 483 asyh->base = armh->base; 484 asyh->ovly = armh->ovly; 485 asyh->dither = armh->dither; 486 asyh->procamp = armh->procamp; 487 asyh->crc = armh->crc; 488 asyh->or = armh->or; 489 asyh->dp = armh->dp; 490 asyh->clr.mask = 0; 491 asyh->set.mask = 0; 492 return &asyh->state; 493} 494 495static void 496nv50_head_reset(struct drm_crtc *crtc) 497{ 498 struct nv50_head_atom *asyh; 499 500 if (WARN_ON(!(asyh = kzalloc(sizeof(*asyh), GFP_KERNEL)))) 501 return; 502 503 if (crtc->state) 504 nv50_head_atomic_destroy_state(crtc, crtc->state); 505 506 __drm_atomic_helper_crtc_reset(crtc, &asyh->state); 507} 508 509static int 510nv50_head_late_register(struct drm_crtc *crtc) 511{ 512 return nv50_head_crc_late_register(nv50_head(crtc)); 513} 514 515static void 516nv50_head_destroy(struct drm_crtc *crtc) 517{ 518 struct nv50_head *head = nv50_head(crtc); 519 520 nvif_event_dtor(&head->base.vblank); 521 nvif_head_dtor(&head->base.head); 522 nv50_lut_fini(&head->olut); 523 drm_crtc_cleanup(crtc); 524 kfree(head); 525} 526 527static const struct drm_crtc_funcs 528nv50_head_func = { 529 .reset = nv50_head_reset, 530 .destroy = nv50_head_destroy, 531 .set_config = drm_atomic_helper_set_config, 532 .page_flip = drm_atomic_helper_page_flip, 533 .atomic_duplicate_state = nv50_head_atomic_duplicate_state, 534 .atomic_destroy_state = nv50_head_atomic_destroy_state, 535 .enable_vblank = nouveau_display_vblank_enable, 536 .disable_vblank = nouveau_display_vblank_disable, 537 .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, 538 .late_register = nv50_head_late_register, 539}; 540 541static const struct drm_crtc_funcs 542nvd9_head_func = { 543 .reset = nv50_head_reset, 544 .destroy = nv50_head_destroy, 545 .set_config = drm_atomic_helper_set_config, 546 .page_flip = drm_atomic_helper_page_flip, 547 .atomic_duplicate_state = nv50_head_atomic_duplicate_state, 548 .atomic_destroy_state = nv50_head_atomic_destroy_state, 549 .enable_vblank = nouveau_display_vblank_enable, 550 .disable_vblank = nouveau_display_vblank_disable, 551 .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, 552 .verify_crc_source = nv50_crc_verify_source, 553 .get_crc_sources = nv50_crc_get_sources, 554 .set_crc_source = nv50_crc_set_source, 555 .late_register = nv50_head_late_register, 556}; 557 558static int 559nv50_head_vblank_handler(struct nvif_event *event, void *repv, u32 repc) 560{ 561 struct nouveau_crtc *nv_crtc = container_of(event, struct nouveau_crtc, vblank); 562 563 if (drm_crtc_handle_vblank(&nv_crtc->base)) 564 nv50_crc_handle_vblank(nv50_head(&nv_crtc->base)); 565 566 return NVIF_EVENT_KEEP; 567} 568 569struct nv50_head * 570nv50_head_create(struct drm_device *dev, int index) 571{ 572 struct nouveau_drm *drm = nouveau_drm(dev); 573 struct nv50_disp *disp = nv50_disp(dev); 574 struct nv50_head *head; 575 struct nv50_wndw *base, *ovly, *curs; 576 struct nouveau_crtc *nv_crtc; 577 struct drm_crtc *crtc; 578 const struct drm_crtc_funcs *funcs; 579 int ret; 580 581 head = kzalloc(sizeof(*head), GFP_KERNEL); 582 if (!head) 583 return ERR_PTR(-ENOMEM); 584 585 head->func = disp->core->func->head; 586 head->base.index = index; 587 588 if (disp->disp->object.oclass < GF110_DISP) 589 funcs = &nv50_head_func; 590 else 591 funcs = &nvd9_head_func; 592 593 if (disp->disp->object.oclass < GV100_DISP) { 594 ret = nv50_base_new(drm, head->base.index, &base); 595 ret = nv50_ovly_new(drm, head->base.index, &ovly); 596 } else { 597 ret = nv50_wndw_new(drm, DRM_PLANE_TYPE_PRIMARY, 598 head->base.index * 2 + 0, &base); 599 ret = nv50_wndw_new(drm, DRM_PLANE_TYPE_OVERLAY, 600 head->base.index * 2 + 1, &ovly); 601 } 602 if (ret == 0) 603 ret = nv50_curs_new(drm, head->base.index, &curs); 604 if (ret) { 605 kfree(head); 606 return ERR_PTR(ret); 607 } 608 609 nv_crtc = &head->base; 610 crtc = &nv_crtc->base; 611 drm_crtc_init_with_planes(dev, crtc, &base->plane, &curs->plane, 612 funcs, "head-%d", head->base.index); 613 drm_crtc_helper_add(crtc, &nv50_head_help); 614 /* Keep the legacy gamma size at 256 to avoid compatibility issues */ 615 drm_mode_crtc_set_gamma_size(crtc, 256); 616 drm_crtc_enable_color_mgmt(crtc, base->func->ilut_size, 617 disp->disp->object.oclass >= GF110_DISP, 618 head->func->olut_size); 619 620 if (head->func->olut_set) { 621 ret = nv50_lut_init(disp, &drm->client.mmu, &head->olut); 622 if (ret) { 623 nv50_head_destroy(crtc); 624 return ERR_PTR(ret); 625 } 626 } 627 628 ret = nvif_head_ctor(disp->disp, head->base.base.name, head->base.index, &head->base.head); 629 if (ret) 630 return ERR_PTR(ret); 631 632 ret = nvif_head_vblank_event_ctor(&head->base.head, "kmsVbl", nv50_head_vblank_handler, 633 false, &nv_crtc->vblank); 634 if (ret) 635 return ERR_PTR(ret); 636 637 return head; 638} 639