drivers/gpu/drm/nouveau/nv50_display.c

   1 /*
   2  * Copyright 2011 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <linux/dma-mapping.h>
  26 #include <linux/hdmi.h>
  27
  28 #include <drm/drmP.h>
  29 #include <drm/drm_atomic.h>
  30 #include <drm/drm_atomic_helper.h>
  31 #include <drm/drm_crtc_helper.h>
  32 #include <drm/drm_dp_helper.h>
  33 #include <drm/drm_fb_helper.h>
  34 #include <drm/drm_plane_helper.h>
  35 #include <drm/drm_edid.h>
  36
  37 #include <nvif/class.h>
  38 #include <nvif/cl0002.h>
  39 #include <nvif/cl5070.h>
  40 #include <nvif/cl507a.h>
  41 #include <nvif/cl507b.h>
  42 #include <nvif/cl507c.h>
  43 #include <nvif/cl507d.h>
  44 #include <nvif/cl507e.h>
  45 #include <nvif/event.h>
  46
  47 #include "nouveau_drv.h"
  48 #include "nouveau_dma.h"
  49 #include "nouveau_gem.h"
  50 #include "nouveau_connector.h"
  51 #include "nouveau_encoder.h"
  52 #include "nouveau_crtc.h"
  53 #include "nouveau_fence.h"
  54 #include "nouveau_fbcon.h"
  55 #include "nv50_display.h"
  56
  57 #define EVO_DMA_NR 9
  58
  59 #define EVO_MASTER  (0x00)
  60 #define EVO_FLIP(c) (0x01 + (c))
  61 #define EVO_OVLY(c) (0x05 + (c))
  62 #define EVO_OIMM(c) (0x09 + (c))
  63 #define EVO_CURS(c) (0x0d + (c))
  64
  65 /* offsets in shared sync bo of various structures */
  66 #define EVO_SYNC(c, o) ((c) * 0x0100 + (o))
  67 #define EVO_MAST_NTFY     EVO_SYNC(      0, 0x00)
  68 #define EVO_FLIP_SEM0(c)  EVO_SYNC((c) + 1, 0x00)
  69 #define EVO_FLIP_SEM1(c)  EVO_SYNC((c) + 1, 0x10)
  70 #define EVO_FLIP_NTFY0(c) EVO_SYNC((c) + 1, 0x20)
  71 #define EVO_FLIP_NTFY1(c) EVO_SYNC((c) + 1, 0x30)
  72
  73 /******************************************************************************
  74  * Atomic state
  75  *****************************************************************************/
  76 #define nv50_atom(p) container_of((p), struct nv50_atom, state)
  77
  78 struct nv50_atom {
  79         struct drm_atomic_state state;
  80
  81         struct list_head outp;
  82         bool lock_core;
  83         bool flush_disable;
  84 };
  85
  86 struct nv50_outp_atom {
  87         struct list_head head;
  88
  89         struct drm_encoder *encoder;
  90         bool flush_disable;
  91
  92         union {
  93                 struct {
  94                         bool ctrl:1;
  95                 };
  96                 u8 mask;
  97         } clr;
  98
  99         union {
 100                 struct {
 101                         bool ctrl:1;
 102                 };
 103                 u8 mask;
 104         } set;
 105 };
 106
 107 #define nv50_head_atom(p) container_of((p), struct nv50_head_atom, state)
 108
 109 struct nv50_head_atom {
 110         struct drm_crtc_state state;
 111
 112         struct {
 113                 u16 iW;
 114                 u16 iH;
 115                 u16 oW;
 116                 u16 oH;
 117         } view;
 118
 119         struct nv50_head_mode {
 120                 bool interlace;
 121                 u32 clock;
 122                 struct {
 123                         u16 active;
 124                         u16 synce;
 125                         u16 blanke;
 126                         u16 blanks;
 127                 } h;
 128                 struct {
 129                         u32 active;
 130                         u16 synce;
 131                         u16 blanke;
 132                         u16 blanks;
 133                         u16 blank2s;
 134                         u16 blank2e;
 135                         u16 blankus;
 136                 } v;
 137         } mode;
 138
 139         struct {
 140                 u32 handle;
 141                 u64 offset:40;
 142         } lut;
 143
 144         struct {
 145                 bool visible;
 146                 u32 handle;
 147                 u64 offset:40;
 148                 u8  format;
 149                 u8  kind:7;
 150                 u8  layout:1;
 151                 u8  block:4;
 152                 u32 pitch:20;
 153                 u16 x;
 154                 u16 y;
 155                 u16 w;
 156                 u16 h;
 157         } core;
 158
 159         struct {
 160                 bool visible;
 161                 u32 handle;
 162                 u64 offset:40;
 163                 u8  layout:1;
 164                 u8  format:1;
 165         } curs;
 166
 167         struct {
 168                 u8  depth;
 169                 u8  cpp;
 170                 u16 x;
 171                 u16 y;
 172                 u16 w;
 173                 u16 h;
 174         } base;
 175
 176         struct {
 177                 u8 cpp;
 178         } ovly;
 179
 180         struct {
 181                 bool enable:1;
 182                 u8 bits:2;
 183                 u8 mode:4;
 184         } dither;
 185
 186         struct {
 187                 struct {
 188                         u16 cos:12;
 189                         u16 sin:12;
 190                 } sat;
 191         } procamp;
 192
 193         union {
 194                 struct {
 195                         bool core:1;
 196                         bool curs:1;
 197                 };
 198                 u8 mask;
 199         } clr;
 200
 201         union {
 202                 struct {
 203                         bool core:1;
 204                         bool curs:1;
 205                         bool view:1;
 206                         bool mode:1;
 207                         bool base:1;
 208                         bool ovly:1;
 209                         bool dither:1;
 210                         bool procamp:1;
 211                 };
 212                 u16 mask;
 213         } set;
 214 };
 215
 216 static inline struct nv50_head_atom *
 217 nv50_head_atom_get(struct drm_atomic_state *state, struct drm_crtc *crtc)
 218 {
 219         struct drm_crtc_state *statec = drm_atomic_get_crtc_state(state, crtc);
 220         if (IS_ERR(statec))
 221                 return (void *)statec;
 222         return nv50_head_atom(statec);
 223 }
 224
 225 #define nv50_wndw_atom(p) container_of((p), struct nv50_wndw_atom, state)
 226
 227 struct nv50_wndw_atom {
 228         struct drm_plane_state state;
 229         u8 interval;
 230
 231         struct drm_rect clip;
 232
 233         struct {
 234                 u32  handle;
 235                 u16  offset:12;
 236                 bool awaken:1;
 237         } ntfy;
 238
 239         struct {
 240                 u32 handle;
 241                 u16 offset:12;
 242                 u32 acquire;
 243                 u32 release;
 244         } sema;
 245
 246         struct {
 247                 u8 enable:2;
 248         } lut;
 249
 250         struct {
 251                 u8  mode:2;
 252                 u8  interval:4;
 253
 254                 u8  format;
 255                 u8  kind:7;
 256                 u8  layout:1;
 257                 u8  block:4;
 258                 u32 pitch:20;
 259                 u16 w;
 260                 u16 h;
 261
 262                 u32 handle;
 263                 u64 offset;
 264         } image;
 265
 266         struct {
 267                 u16 x;
 268                 u16 y;
 269         } point;
 270
 271         union {
 272                 struct {
 273                         bool ntfy:1;
 274                         bool sema:1;
 275                         bool image:1;
 276                 };
 277                 u8 mask;
 278         } clr;
 279
 280         union {
 281                 struct {
 282                         bool ntfy:1;
 283                         bool sema:1;
 284                         bool image:1;
 285                         bool lut:1;
 286                         bool point:1;
 287                 };
 288                 u8 mask;
 289         } set;
 290 };
 291
 292 /******************************************************************************
 293  * EVO channel
 294  *****************************************************************************/
 295
 296 struct nv50_chan {
 297         struct nvif_object user;
 298         struct nvif_device *device;
 299 };
 300
 301 static int
 302 nv50_chan_create(struct nvif_device *device, struct nvif_object *disp,
 303                  const s32 *oclass, u8 head, void *data, u32 size,
 304                  struct nv50_chan *chan)
 305 {
 306         struct nvif_sclass *sclass;
 307         int ret, i, n;
 308
 309         chan->device = device;
 310
 311         ret = n = nvif_object_sclass_get(disp, &sclass);
 312         if (ret < 0)
 313                 return ret;
 314
 315         while (oclass[0]) {
 316                 for (i = 0; i < n; i++) {
 317                         if (sclass[i].oclass == oclass[0]) {
 318                                 ret = nvif_object_init(disp, 0, oclass[0],
 319                                                        data, size, &chan->user);
 320                                 if (ret == 0)
 321                                         nvif_object_map(&chan->user);
 322                                 nvif_object_sclass_put(&sclass);
 323                                 return ret;
 324                         }
 325                 }
 326                 oclass++;
 327         }
 328
 329         nvif_object_sclass_put(&sclass);
 330         return -ENOSYS;
 331 }
 332
 333 static void
 334 nv50_chan_destroy(struct nv50_chan *chan)
 335 {
 336         nvif_object_fini(&chan->user);
 337 }
 338
 339 /******************************************************************************
 340  * PIO EVO channel
 341  *****************************************************************************/
 342
 343 struct nv50_pioc {
 344         struct nv50_chan base;
 345 };
 346
 347 static void
 348 nv50_pioc_destroy(struct nv50_pioc *pioc)
 349 {
 350         nv50_chan_destroy(&pioc->base);
 351 }
 352
 353 static int
 354 nv50_pioc_create(struct nvif_device *device, struct nvif_object *disp,
 355                  const s32 *oclass, u8 head, void *data, u32 size,
 356                  struct nv50_pioc *pioc)
 357 {
 358         return nv50_chan_create(device, disp, oclass, head, data, size,
 359                                 &pioc->base);
 360 }
 361
 362 /******************************************************************************
 363  * Overlay Immediate
 364  *****************************************************************************/
 365
 366 struct nv50_oimm {
 367         struct nv50_pioc base;
 368 };
 369
 370 static int
 371 nv50_oimm_create(struct nvif_device *device, struct nvif_object *disp,
 372                  int head, struct nv50_oimm *oimm)
 373 {
 374         struct nv50_disp_cursor_v0 args = {
 375                 .head = head,
 376         };
 377         static const s32 oclass[] = {
 378                 GK104_DISP_OVERLAY,
 379                 GF110_DISP_OVERLAY,
 380                 GT214_DISP_OVERLAY,
 381                 G82_DISP_OVERLAY,
 382                 NV50_DISP_OVERLAY,
 383                 0
 384         };
 385
 386         return nv50_pioc_create(device, disp, oclass, head, &args, sizeof(args),
 387                                 &oimm->base);
 388 }
 389
 390 /******************************************************************************
 391  * DMA EVO channel
 392  *****************************************************************************/
 393
 394 struct nv50_dmac_ctxdma {
 395         struct list_head head;
 396         struct nvif_object object;
 397 };
 398
 399 struct nv50_dmac {
 400         struct nv50_chan base;
 401         dma_addr_t handle;
 402         u32 *ptr;
 403
 404         struct nvif_object sync;
 405         struct nvif_object vram;
 406         struct list_head ctxdma;
 407
 408         /* Protects against concurrent pushbuf access to this channel, lock is
 409          * grabbed by evo_wait (if the pushbuf reservation is successful) and
 410          * dropped again by evo_kick. */
 411         struct mutex lock;
 412 };
 413
 414 static void
 415 nv50_dmac_ctxdma_del(struct nv50_dmac_ctxdma *ctxdma)
 416 {
 417         nvif_object_fini(&ctxdma->object);
 418         list_del(&ctxdma->head);
 419         kfree(ctxdma);
 420 }
 421
 422 static struct nv50_dmac_ctxdma *
 423 nv50_dmac_ctxdma_new(struct nv50_dmac *dmac, struct nouveau_framebuffer *fb)
 424 {
 425         struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
 426         struct nv50_dmac_ctxdma *ctxdma;
 427         const u8    kind = (fb->nvbo->tile_flags & 0x0000ff00) >> 8;
 428         const u32 handle = 0xfb000000 | kind;
 429         struct {
 430                 struct nv_dma_v0 base;
 431                 union {
 432                         struct nv50_dma_v0 nv50;
 433                         struct gf100_dma_v0 gf100;
 434                         struct gf119_dma_v0 gf119;
 435                 };
 436         } args = {};
 437         u32 argc = sizeof(args.base);
 438         int ret;
 439
 440         list_for_each_entry(ctxdma, &dmac->ctxdma, head) {
 441                 if (ctxdma->object.handle == handle)
 442                         return ctxdma;
 443         }
 444
 445         if (!(ctxdma = kzalloc(sizeof(*ctxdma), GFP_KERNEL)))
 446                 return ERR_PTR(-ENOMEM);
 447         list_add(&ctxdma->head, &dmac->ctxdma);
 448
 449         args.base.target = NV_DMA_V0_TARGET_VRAM;
 450         args.base.access = NV_DMA_V0_ACCESS_RDWR;
 451         args.base.start  = 0;
 452         args.base.limit  = drm->client.device.info.ram_user - 1;
 453
 454         if (drm->client.device.info.chipset < 0x80) {
 455                 args.nv50.part = NV50_DMA_V0_PART_256;
 456                 argc += sizeof(args.nv50);
 457         } else
 458         if (drm->client.device.info.chipset < 0xc0) {
 459                 args.nv50.part = NV50_DMA_V0_PART_256;
 460                 args.nv50.kind = kind;
 461                 argc += sizeof(args.nv50);
 462         } else
 463         if (drm->client.device.info.chipset < 0xd0) {
 464                 args.gf100.kind = kind;
 465                 argc += sizeof(args.gf100);
 466         } else {
 467                 args.gf119.page = GF119_DMA_V0_PAGE_LP;
 468                 args.gf119.kind = kind;
 469                 argc += sizeof(args.gf119);
 470         }
 471
 472         ret = nvif_object_init(&dmac->base.user, handle, NV_DMA_IN_MEMORY,
 473                                &args, argc, &ctxdma->object);
 474         if (ret) {
 475                 nv50_dmac_ctxdma_del(ctxdma);
 476                 return ERR_PTR(ret);
 477         }
 478
 479         return ctxdma;
 480 }
 481
 482 static void
 483 nv50_dmac_destroy(struct nv50_dmac *dmac, struct nvif_object *disp)
 484 {
 485         struct nvif_device *device = dmac->base.device;
 486         struct nv50_dmac_ctxdma *ctxdma, *ctxtmp;
 487
 488         list_for_each_entry_safe(ctxdma, ctxtmp, &dmac->ctxdma, head) {
 489                 nv50_dmac_ctxdma_del(ctxdma);
 490         }
 491
 492         nvif_object_fini(&dmac->vram);
 493         nvif_object_fini(&dmac->sync);
 494
 495         nv50_chan_destroy(&dmac->base);
 496
 497         if (dmac->ptr) {
 498                 struct device *dev = nvxx_device(device)->dev;
 499                 dma_free_coherent(dev, PAGE_SIZE, dmac->ptr, dmac->handle);
 500         }
 501 }
 502
 503 static int
 504 nv50_dmac_create(struct nvif_device *device, struct nvif_object *disp,
 505                  const s32 *oclass, u8 head, void *data, u32 size, u64 syncbuf,
 506                  struct nv50_dmac *dmac)
 507 {
 508         struct nv50_disp_core_channel_dma_v0 *args = data;
 509         struct nvif_object pushbuf;
 510         int ret;
 511
 512         mutex_init(&dmac->lock);
 513
 514         dmac->ptr = dma_alloc_coherent(nvxx_device(device)->dev, PAGE_SIZE,
 515                                        &dmac->handle, GFP_KERNEL);
 516         if (!dmac->ptr)
 517                 return -ENOMEM;
 518
 519         ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
 520                                &(struct nv_dma_v0) {
 521                                         .target = NV_DMA_V0_TARGET_PCI_US,
 522                                         .access = NV_DMA_V0_ACCESS_RD,
 523                                         .start = dmac->handle + 0x0000,
 524                                         .limit = dmac->handle + 0x0fff,
 525                                }, sizeof(struct nv_dma_v0), &pushbuf);
 526         if (ret)
 527                 return ret;
 528
 529         args->pushbuf = nvif_handle(&pushbuf);
 530
 531         ret = nv50_chan_create(device, disp, oclass, head, data, size,
 532                                &dmac->base);
 533         nvif_object_fini(&pushbuf);
 534         if (ret)
 535                 return ret;
 536
 537         ret = nvif_object_init(&dmac->base.user, 0xf0000000, NV_DMA_IN_MEMORY,
 538                                &(struct nv_dma_v0) {
 539                                         .target = NV_DMA_V0_TARGET_VRAM,
 540                                         .access = NV_DMA_V0_ACCESS_RDWR,
 541                                         .start = syncbuf + 0x0000,
 542                                         .limit = syncbuf + 0x0fff,
 543                                }, sizeof(struct nv_dma_v0),
 544                                &dmac->sync);
 545         if (ret)
 546                 return ret;
 547
 548         ret = nvif_object_init(&dmac->base.user, 0xf0000001, NV_DMA_IN_MEMORY,
 549                                &(struct nv_dma_v0) {
 550                                         .target = NV_DMA_V0_TARGET_VRAM,
 551                                         .access = NV_DMA_V0_ACCESS_RDWR,
 552                                         .start = 0,
 553                                         .limit = device->info.ram_user - 1,
 554                                }, sizeof(struct nv_dma_v0),
 555                                &dmac->vram);
 556         if (ret)
 557                 return ret;
 558
 559         INIT_LIST_HEAD(&dmac->ctxdma);
 560         return ret;
 561 }
 562
 563 /******************************************************************************
 564  * Core
 565  *****************************************************************************/
 566
 567 struct nv50_mast {
 568         struct nv50_dmac base;
 569 };
 570
 571 static int
 572 nv50_core_create(struct nvif_device *device, struct nvif_object *disp,
 573                  u64 syncbuf, struct nv50_mast *core)
 574 {
 575         struct nv50_disp_core_channel_dma_v0 args = {
 576                 .pushbuf = 0xb0007d00,
 577         };
 578         static const s32 oclass[] = {
 579                 GP102_DISP_CORE_CHANNEL_DMA,
 580                 GP100_DISP_CORE_CHANNEL_DMA,
 581                 GM200_DISP_CORE_CHANNEL_DMA,
 582                 GM107_DISP_CORE_CHANNEL_DMA,
 583                 GK110_DISP_CORE_CHANNEL_DMA,
 584                 GK104_DISP_CORE_CHANNEL_DMA,
 585                 GF110_DISP_CORE_CHANNEL_DMA,
 586                 GT214_DISP_CORE_CHANNEL_DMA,
 587                 GT206_DISP_CORE_CHANNEL_DMA,
 588                 GT200_DISP_CORE_CHANNEL_DMA,
 589                 G82_DISP_CORE_CHANNEL_DMA,
 590                 NV50_DISP_CORE_CHANNEL_DMA,
 591                 0
 592         };
 593
 594         return nv50_dmac_create(device, disp, oclass, 0, &args, sizeof(args),
 595                                 syncbuf, &core->base);
 596 }
 597
 598 /******************************************************************************
 599  * Base
 600  *****************************************************************************/
 601
 602 struct nv50_sync {
 603         struct nv50_dmac base;
 604         u32 addr;
 605         u32 data;
 606 };
 607
 608 static int
 609 nv50_base_create(struct nvif_device *device, struct nvif_object *disp,
 610                  int head, u64 syncbuf, struct nv50_sync *base)
 611 {
 612         struct nv50_disp_base_channel_dma_v0 args = {
 613                 .pushbuf = 0xb0007c00 | head,
 614                 .head = head,
 615         };
 616         static const s32 oclass[] = {
 617                 GK110_DISP_BASE_CHANNEL_DMA,
 618                 GK104_DISP_BASE_CHANNEL_DMA,
 619                 GF110_DISP_BASE_CHANNEL_DMA,
 620                 GT214_DISP_BASE_CHANNEL_DMA,
 621                 GT200_DISP_BASE_CHANNEL_DMA,
 622                 G82_DISP_BASE_CHANNEL_DMA,
 623                 NV50_DISP_BASE_CHANNEL_DMA,
 624                 0
 625         };
 626
 627         return nv50_dmac_create(device, disp, oclass, head, &args, sizeof(args),
 628                                 syncbuf, &base->base);
 629 }
 630
 631 /******************************************************************************
 632  * Overlay
 633  *****************************************************************************/
 634
 635 struct nv50_ovly {
 636         struct nv50_dmac base;
 637 };
 638
 639 static int
 640 nv50_ovly_create(struct nvif_device *device, struct nvif_object *disp,
 641                  int head, u64 syncbuf, struct nv50_ovly *ovly)
 642 {
 643         struct nv50_disp_overlay_channel_dma_v0 args = {
 644                 .pushbuf = 0xb0007e00 | head,
 645                 .head = head,
 646         };
 647         static const s32 oclass[] = {
 648                 GK104_DISP_OVERLAY_CONTROL_DMA,
 649                 GF110_DISP_OVERLAY_CONTROL_DMA,
 650                 GT214_DISP_OVERLAY_CHANNEL_DMA,
 651                 GT200_DISP_OVERLAY_CHANNEL_DMA,
 652                 G82_DISP_OVERLAY_CHANNEL_DMA,
 653                 NV50_DISP_OVERLAY_CHANNEL_DMA,
 654                 0
 655         };
 656
 657         return nv50_dmac_create(device, disp, oclass, head, &args, sizeof(args),
 658                                 syncbuf, &ovly->base);
 659 }
 660
 661 struct nv50_head {
 662         struct nouveau_crtc base;
 663         struct nv50_ovly ovly;
 664         struct nv50_oimm oimm;
 665 };
 666
 667 #define nv50_head(c) ((struct nv50_head *)nouveau_crtc(c))
 668 #define nv50_ovly(c) (&nv50_head(c)->ovly)
 669 #define nv50_oimm(c) (&nv50_head(c)->oimm)
 670 #define nv50_chan(c) (&(c)->base.base)
 671 #define nv50_vers(c) nv50_chan(c)->user.oclass
 672
 673 struct nv50_disp {
 674         struct nvif_object *disp;
 675         struct nv50_mast mast;
 676
 677         struct nouveau_bo *sync;
 678
 679         struct mutex mutex;
 680 };
 681
 682 static struct nv50_disp *
 683 nv50_disp(struct drm_device *dev)
 684 {
 685         return nouveau_display(dev)->priv;
 686 }
 687
 688 #define nv50_mast(d) (&nv50_disp(d)->mast)
 689
 690 /******************************************************************************
 691  * EVO channel helpers
 692  *****************************************************************************/
 693 static u32 *
 694 evo_wait(void *evoc, int nr)
 695 {
 696         struct nv50_dmac *dmac = evoc;
 697         struct nvif_device *device = dmac->base.device;
 698         u32 put = nvif_rd32(&dmac->base.user, 0x0000) / 4;
 699
 700         mutex_lock(&dmac->lock);
 701         if (put + nr >= (PAGE_SIZE / 4) - 8) {
 702                 dmac->ptr[put] = 0x20000000;
 703
 704                 nvif_wr32(&dmac->base.user, 0x0000, 0x00000000);
 705                 if (nvif_msec(device, 2000,
 706                         if (!nvif_rd32(&dmac->base.user, 0x0004))
 707                                 break;
 708                 ) < 0) {
 709                         mutex_unlock(&dmac->lock);
 710                         pr_err("nouveau: evo channel stalled\n");
 711                         return NULL;
 712                 }
 713
 714                 put = 0;
 715         }
 716
 717         return dmac->ptr + put;
 718 }
 719
 720 static void
 721 evo_kick(u32 *push, void *evoc)
 722 {
 723         struct nv50_dmac *dmac = evoc;
 724         nvif_wr32(&dmac->base.user, 0x0000, (push - dmac->ptr) << 2);
 725         mutex_unlock(&dmac->lock);
 726 }
 727
 728 #define evo_mthd(p, m, s) do {                                          \
 729         const u32 _m = (m), _s = (s);                                   \
 730         if (drm_debug & DRM_UT_KMS)                                     \
 731                 pr_err("%04x %d %s\n", _m, _s, __func__);               \
 732         *((p)++) = ((_s << 18) | _m);                                   \
 733 } while(0)
 734
 735 #define evo_data(p, d) do {                                             \
 736         const u32 _d = (d);                                             \
 737         if (drm_debug & DRM_UT_KMS)                                     \
 738                 pr_err("\t%08x\n", _d);                                 \
 739         *((p)++) = _d;                                                  \
 740 } while(0)
 741
 742 /******************************************************************************
 743  * Plane
 744  *****************************************************************************/
 745 #define nv50_wndw(p) container_of((p), struct nv50_wndw, plane)
 746
 747 struct nv50_wndw {
 748         const struct nv50_wndw_func *func;
 749         struct nv50_dmac *dmac;
 750
 751         struct drm_plane plane;
 752
 753         struct nvif_notify notify;
 754         u16 ntfy;
 755         u16 sema;
 756         u32 data;
 757 };
 758
 759 struct nv50_wndw_func {
 760         void *(*dtor)(struct nv50_wndw *);
 761         int (*acquire)(struct nv50_wndw *, struct nv50_wndw_atom *asyw,
 762                        struct nv50_head_atom *asyh);
 763         void (*release)(struct nv50_wndw *, struct nv50_wndw_atom *asyw,
 764                         struct nv50_head_atom *asyh);
 765         void (*prepare)(struct nv50_wndw *, struct nv50_head_atom *asyh,
 766                         struct nv50_wndw_atom *asyw);
 767
 768         void (*sema_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
 769         void (*sema_clr)(struct nv50_wndw *);
 770         void (*ntfy_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
 771         void (*ntfy_clr)(struct nv50_wndw *);
 772         int (*ntfy_wait_begun)(struct nv50_wndw *, struct nv50_wndw_atom *);
 773         void (*image_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
 774         void (*image_clr)(struct nv50_wndw *);
 775         void (*lut)(struct nv50_wndw *, struct nv50_wndw_atom *);
 776         void (*point)(struct nv50_wndw *, struct nv50_wndw_atom *);
 777
 778         u32 (*update)(struct nv50_wndw *, u32 interlock);
 779 };
 780
 781 static int
 782 nv50_wndw_wait_armed(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 783 {
 784         if (asyw->set.ntfy)
 785                 return wndw->func->ntfy_wait_begun(wndw, asyw);
 786         return 0;
 787 }
 788
 789 static u32
 790 nv50_wndw_flush_clr(struct nv50_wndw *wndw, u32 interlock, bool flush,
 791                     struct nv50_wndw_atom *asyw)
 792 {
 793         if (asyw->clr.sema && (!asyw->set.sema || flush))
 794                 wndw->func->sema_clr(wndw);
 795         if (asyw->clr.ntfy && (!asyw->set.ntfy || flush))
 796                 wndw->func->ntfy_clr(wndw);
 797         if (asyw->clr.image && (!asyw->set.image || flush))
 798                 wndw->func->image_clr(wndw);
 799
 800         return flush ? wndw->func->update(wndw, interlock) : 0;
 801 }
 802
 803 static u32
 804 nv50_wndw_flush_set(struct nv50_wndw *wndw, u32 interlock,
 805                     struct nv50_wndw_atom *asyw)
 806 {
 807         if (interlock) {
 808                 asyw->image.mode = 0;
 809                 asyw->image.interval = 1;
 810         }
 811
 812         if (asyw->set.sema ) wndw->func->sema_set (wndw, asyw);
 813         if (asyw->set.ntfy ) wndw->func->ntfy_set (wndw, asyw);
 814         if (asyw->set.image) wndw->func->image_set(wndw, asyw);
 815         if (asyw->set.lut  ) wndw->func->lut      (wndw, asyw);
 816         if (asyw->set.point) wndw->func->point    (wndw, asyw);
 817
 818         return wndw->func->update(wndw, interlock);
 819 }
 820
 821 static void
 822 nv50_wndw_atomic_check_release(struct nv50_wndw *wndw,
 823                                struct nv50_wndw_atom *asyw,
 824                                struct nv50_head_atom *asyh)
 825 {
 826         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 827         NV_ATOMIC(drm, "%s release\n", wndw->plane.name);
 828         wndw->func->release(wndw, asyw, asyh);
 829         asyw->ntfy.handle = 0;
 830         asyw->sema.handle = 0;
 831 }
 832
 833 static int
 834 nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw,
 835                                struct nv50_wndw_atom *asyw,
 836                                struct nv50_head_atom *asyh)
 837 {
 838         struct nouveau_framebuffer *fb = nouveau_framebuffer(asyw->state.fb);
 839         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 840         int ret;
 841
 842         NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
 843         asyw->clip.x1 = 0;
 844         asyw->clip.y1 = 0;
 845         asyw->clip.x2 = asyh->state.mode.hdisplay;
 846         asyw->clip.y2 = asyh->state.mode.vdisplay;
 847
 848         asyw->image.w = fb->base.width;
 849         asyw->image.h = fb->base.height;
 850         asyw->image.kind = (fb->nvbo->tile_flags & 0x0000ff00) >> 8;
 851
 852         if (asyh->state.pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC)
 853                 asyw->interval = 0;
 854         else
 855                 asyw->interval = 1;
 856
 857         if (asyw->image.kind) {
 858                 asyw->image.layout = 0;
 859                 if (drm->client.device.info.chipset >= 0xc0)
 860                         asyw->image.block = fb->nvbo->tile_mode >> 4;
 861                 else
 862                         asyw->image.block = fb->nvbo->tile_mode;
 863                 asyw->image.pitch = (fb->base.pitches[0] / 4) << 4;
 864         } else {
 865                 asyw->image.layout = 1;
 866                 asyw->image.block  = 0;
 867                 asyw->image.pitch  = fb->base.pitches[0];
 868         }
 869
 870         ret = wndw->func->acquire(wndw, asyw, asyh);
 871         if (ret)
 872                 return ret;
 873
 874         if (asyw->set.image) {
 875                 if (!(asyw->image.mode = asyw->interval ? 0 : 1))
 876                         asyw->image.interval = asyw->interval;
 877                 else
 878                         asyw->image.interval = 0;
 879         }
 880
 881         return 0;
 882 }
 883
 884 static int
 885 nv50_wndw_atomic_check(struct drm_plane *plane, struct drm_plane_state *state)
 886 {
 887         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 888         struct nv50_wndw *wndw = nv50_wndw(plane);
 889         struct nv50_wndw_atom *armw = nv50_wndw_atom(wndw->plane.state);
 890         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 891         struct nv50_head_atom *harm = NULL, *asyh = NULL;
 892         bool varm = false, asyv = false, asym = false;
 893         int ret;
 894
 895         NV_ATOMIC(drm, "%s atomic_check\n", plane->name);
 896         if (asyw->state.crtc) {
 897                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 898                 if (IS_ERR(asyh))
 899                         return PTR_ERR(asyh);
 900                 asym = drm_atomic_crtc_needs_modeset(&asyh->state);
 901                 asyv = asyh->state.active;
 902         }
 903
 904         if (armw->state.crtc) {
 905                 harm = nv50_head_atom_get(asyw->state.state, armw->state.crtc);
 906                 if (IS_ERR(harm))
 907                         return PTR_ERR(harm);
 908                 varm = harm->state.crtc->state->active;
 909         }
 910
 911         if (asyv) {
 912                 asyw->point.x = asyw->state.crtc_x;
 913                 asyw->point.y = asyw->state.crtc_y;
 914                 if (memcmp(&armw->point, &asyw->point, sizeof(asyw->point)))
 915                         asyw->set.point = true;
 916
 917                 ret = nv50_wndw_atomic_check_acquire(wndw, asyw, asyh);
 918                 if (ret)
 919                         return ret;
 920         } else
 921         if (varm) {
 922                 nv50_wndw_atomic_check_release(wndw, asyw, harm);
 923         } else {
 924                 return 0;
 925         }
 926
 927         if (!asyv || asym) {
 928                 asyw->clr.ntfy = armw->ntfy.handle != 0;
 929                 asyw->clr.sema = armw->sema.handle != 0;
 930                 if (wndw->func->image_clr)
 931                         asyw->clr.image = armw->image.handle != 0;
 932                 asyw->set.lut = wndw->func->lut && asyv;
 933         }
 934
 935         return 0;
 936 }
 937
 938 static void
 939 nv50_wndw_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state)
 940 {
 941         struct nouveau_framebuffer *fb = nouveau_framebuffer(old_state->fb);
 942         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 943
 944         NV_ATOMIC(drm, "%s cleanup: %p\n", plane->name, old_state->fb);
 945         if (!old_state->fb)
 946                 return;
 947
 948         nouveau_bo_unpin(fb->nvbo);
 949 }
 950
 951 static int
 952 nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 953 {
 954         struct nouveau_framebuffer *fb = nouveau_framebuffer(state->fb);
 955         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 956         struct nv50_wndw *wndw = nv50_wndw(plane);
 957         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 958         struct nv50_head_atom *asyh;
 959         struct nv50_dmac_ctxdma *ctxdma;
 960         int ret;
 961
 962         NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, state->fb);
 963         if (!asyw->state.fb)
 964                 return 0;
 965
 966         ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM, true);
 967         if (ret)
 968                 return ret;
 969
 970         ctxdma = nv50_dmac_ctxdma_new(wndw->dmac, fb);
 971         if (IS_ERR(ctxdma)) {
 972                 nouveau_bo_unpin(fb->nvbo);
 973                 return PTR_ERR(ctxdma);
 974         }
 975
 976         asyw->state.fence = reservation_object_get_excl_rcu(fb->nvbo->bo.resv);
 977         asyw->image.handle = ctxdma->object.handle;
 978         asyw->image.offset = fb->nvbo->bo.offset;
 979
 980         if (wndw->func->prepare) {
 981                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 982                 if (IS_ERR(asyh))
 983                         return PTR_ERR(asyh);
 984
 985                 wndw->func->prepare(wndw, asyh, asyw);
 986         }
 987
 988         return 0;
 989 }
 990
 991 static const struct drm_plane_helper_funcs
 992 nv50_wndw_helper = {
 993         .prepare_fb = nv50_wndw_prepare_fb,
 994         .cleanup_fb = nv50_wndw_cleanup_fb,
 995         .atomic_check = nv50_wndw_atomic_check,
 996 };
 997
 998 static void
 999 nv50_wndw_atomic_destroy_state(struct drm_plane *plane,
1000                                struct drm_plane_state *state)
1001 {
1002         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
1003         __drm_atomic_helper_plane_destroy_state(&asyw->state);
1004         kfree(asyw);
1005 }
1006
1007 static struct drm_plane_state *
1008 nv50_wndw_atomic_duplicate_state(struct drm_plane *plane)
1009 {
1010         struct nv50_wndw_atom *armw = nv50_wndw_atom(plane->state);
1011         struct nv50_wndw_atom *asyw;
1012         if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL)))
1013                 return NULL;
1014         __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state);
1015         asyw->interval = 1;
1016         asyw->sema = armw->sema;
1017         asyw->ntfy = armw->ntfy;
1018         asyw->image = armw->image;
1019         asyw->point = armw->point;
1020         asyw->lut = armw->lut;
1021         asyw->clr.mask = 0;
1022         asyw->set.mask = 0;
1023         return &asyw->state;
1024 }
1025
1026 static void
1027 nv50_wndw_reset(struct drm_plane *plane)
1028 {
1029         struct nv50_wndw_atom *asyw;
1030
1031         if (WARN_ON(!(asyw = kzalloc(sizeof(*asyw), GFP_KERNEL))))
1032                 return;
1033
1034         if (plane->state)
1035                 plane->funcs->atomic_destroy_state(plane, plane->state);
1036         plane->state = &asyw->state;
1037         plane->state->plane = plane;
1038         plane->state->rotation = DRM_MODE_ROTATE_0;
1039 }
1040
1041 static void
1042 nv50_wndw_destroy(struct drm_plane *plane)
1043 {
1044         struct nv50_wndw *wndw = nv50_wndw(plane);
1045         void *data;
1046         nvif_notify_fini(&wndw->notify);
1047         data = wndw->func->dtor(wndw);
1048         drm_plane_cleanup(&wndw->plane);
1049         kfree(data);
1050 }
1051
1052 static const struct drm_plane_funcs
1053 nv50_wndw = {
1054         .update_plane = drm_atomic_helper_update_plane,
1055         .disable_plane = drm_atomic_helper_disable_plane,
1056         .destroy = nv50_wndw_destroy,
1057         .reset = nv50_wndw_reset,
1058         .atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
1059         .atomic_destroy_state = nv50_wndw_atomic_destroy_state,
1060 };
1061
1062 static void
1063 nv50_wndw_fini(struct nv50_wndw *wndw)
1064 {
1065         nvif_notify_put(&wndw->notify);
1066 }
1067
1068 static void
1069 nv50_wndw_init(struct nv50_wndw *wndw)
1070 {
1071         nvif_notify_get(&wndw->notify);
1072 }
1073
1074 static int
1075 nv50_wndw_ctor(const struct nv50_wndw_func *func, struct drm_device *dev,
1076                enum drm_plane_type type, const char *name, int index,
1077                struct nv50_dmac *dmac, const u32 *format, int nformat,
1078                struct nv50_wndw *wndw)
1079 {
1080         int ret;
1081
1082         wndw->func = func;
1083         wndw->dmac = dmac;
1084
1085         ret = drm_universal_plane_init(dev, &wndw->plane, 0, &nv50_wndw,
1086                                        format, nformat, NULL,
1087                                        type, "%s-%d", name, index);
1088         if (ret)
1089                 return ret;
1090
1091         drm_plane_helper_add(&wndw->plane, &nv50_wndw_helper);
1092         return 0;
1093 }
1094
1095 /******************************************************************************
1096  * Cursor plane
1097  *****************************************************************************/
1098 #define nv50_curs(p) container_of((p), struct nv50_curs, wndw)
1099
1100 struct nv50_curs {
1101         struct nv50_wndw wndw;
1102         struct nvif_object chan;
1103 };
1104
1105 static u32
1106 nv50_curs_update(struct nv50_wndw *wndw, u32 interlock)
1107 {
1108         struct nv50_curs *curs = nv50_curs(wndw);
1109         nvif_wr32(&curs->chan, 0x0080, 0x00000000);
1110         return 0;
1111 }
1112
1113 static void
1114 nv50_curs_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1115 {
1116         struct nv50_curs *curs = nv50_curs(wndw);
1117         nvif_wr32(&curs->chan, 0x0084, (asyw->point.y << 16) | asyw->point.x);
1118 }
1119
1120 static void
1121 nv50_curs_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
1122                   struct nv50_wndw_atom *asyw)
1123 {
1124         u32 handle = nv50_disp(wndw->plane.dev)->mast.base.vram.handle;
1125         u32 offset = asyw->image.offset;
1126         if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
1127                 asyh->curs.handle = handle;
1128                 asyh->curs.offset = offset;
1129                 asyh->set.curs = asyh->curs.visible;
1130         }
1131 }
1132
1133 static void
1134 nv50_curs_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
1135                   struct nv50_head_atom *asyh)
1136 {
1137         asyh->curs.visible = false;
1138 }
1139
1140 static int
1141 nv50_curs_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
1142                   struct nv50_head_atom *asyh)
1143 {
1144         int ret;
1145
1146         ret = drm_plane_helper_check_state(&asyw->state, &asyw->clip,
1147                                            DRM_PLANE_HELPER_NO_SCALING,
1148                                            DRM_PLANE_HELPER_NO_SCALING,
1149                                            true, true);
1150         asyh->curs.visible = asyw->state.visible;
1151         if (ret || !asyh->curs.visible)
1152                 return ret;
1153
1154         switch (asyw->state.fb->width) {
1155         case 32: asyh->curs.layout = 0; break;
1156         case 64: asyh->curs.layout = 1; break;
1157         default:
1158                 return -EINVAL;
1159         }
1160
1161         if (asyw->state.fb->width != asyw->state.fb->height)
1162                 return -EINVAL;
1163
1164         switch (asyw->state.fb->format->format) {
1165         case DRM_FORMAT_ARGB8888: asyh->curs.format = 1; break;
1166         default:
1167                 WARN_ON(1);
1168                 return -EINVAL;
1169         }
1170
1171         return 0;
1172 }
1173
1174 static void *
1175 nv50_curs_dtor(struct nv50_wndw *wndw)
1176 {
1177         struct nv50_curs *curs = nv50_curs(wndw);
1178         nvif_object_fini(&curs->chan);
1179         return curs;
1180 }
1181
1182 static const u32
1183 nv50_curs_format[] = {
1184         DRM_FORMAT_ARGB8888,
1185 };
1186
1187 static const struct nv50_wndw_func
1188 nv50_curs = {
1189         .dtor = nv50_curs_dtor,
1190         .acquire = nv50_curs_acquire,
1191         .release = nv50_curs_release,
1192         .prepare = nv50_curs_prepare,
1193         .point = nv50_curs_point,
1194         .update = nv50_curs_update,
1195 };
1196
1197 static int
1198 nv50_curs_new(struct nouveau_drm *drm, struct nv50_head *head,
1199               struct nv50_curs **pcurs)
1200 {
1201         static const struct nvif_mclass curses[] = {
1202                 { GK104_DISP_CURSOR, 0 },
1203                 { GF110_DISP_CURSOR, 0 },
1204                 { GT214_DISP_CURSOR, 0 },
1205                 {   G82_DISP_CURSOR, 0 },
1206                 {  NV50_DISP_CURSOR, 0 },
1207                 {}
1208         };
1209         struct nv50_disp_cursor_v0 args = {
1210                 .head = head->base.index,
1211         };
1212         struct nv50_disp *disp = nv50_disp(drm->dev);
1213         struct nv50_curs *curs;
1214         int cid, ret;
1215
1216         cid = nvif_mclass(disp->disp, curses);
1217         if (cid < 0) {
1218                 NV_ERROR(drm, "No supported cursor immediate class\n");
1219                 return cid;
1220         }
1221
1222         if (!(curs = *pcurs = kzalloc(sizeof(*curs), GFP_KERNEL)))
1223                 return -ENOMEM;
1224
1225         ret = nv50_wndw_ctor(&nv50_curs, drm->dev, DRM_PLANE_TYPE_CURSOR,
1226                              "curs", head->base.index, &disp->mast.base,
1227                              nv50_curs_format, ARRAY_SIZE(nv50_curs_format),
1228                              &curs->wndw);
1229         if (ret) {
1230                 kfree(curs);
1231                 return ret;
1232         }
1233
1234         ret = nvif_object_init(disp->disp, 0, curses[cid].oclass, &args,
1235                                sizeof(args), &curs->chan);
1236         if (ret) {
1237                 NV_ERROR(drm, "curs%04x allocation failed: %d\n",
1238                          curses[cid].oclass, ret);
1239                 return ret;
1240         }
1241
1242         return 0;
1243 }
1244
1245 /******************************************************************************
1246  * Primary plane
1247  *****************************************************************************/
1248 #define nv50_base(p) container_of((p), struct nv50_base, wndw)
1249
1250 struct nv50_base {
1251         struct nv50_wndw wndw;
1252         struct nv50_sync chan;
1253         int id;
1254 };
1255
1256 static int
1257 nv50_base_notify(struct nvif_notify *notify)
1258 {
1259         return NVIF_NOTIFY_KEEP;
1260 }
1261
1262 static void
1263 nv50_base_lut(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1264 {
1265         struct nv50_base *base = nv50_base(wndw);
1266         u32 *push;
1267         if ((push = evo_wait(&base->chan, 2))) {
1268                 evo_mthd(push, 0x00e0, 1);
1269                 evo_data(push, asyw->lut.enable << 30);
1270                 evo_kick(push, &base->chan);
1271         }
1272 }
1273
1274 static void
1275 nv50_base_image_clr(struct nv50_wndw *wndw)
1276 {
1277         struct nv50_base *base = nv50_base(wndw);
1278         u32 *push;
1279         if ((push = evo_wait(&base->chan, 4))) {
1280                 evo_mthd(push, 0x0084, 1);
1281                 evo_data(push, 0x00000000);
1282                 evo_mthd(push, 0x00c0, 1);
1283                 evo_data(push, 0x00000000);
1284                 evo_kick(push, &base->chan);
1285         }
1286 }
1287
1288 static void
1289 nv50_base_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1290 {
1291         struct nv50_base *base = nv50_base(wndw);
1292         const s32 oclass = base->chan.base.base.user.oclass;
1293         u32 *push;
1294         if ((push = evo_wait(&base->chan, 10))) {
1295                 evo_mthd(push, 0x0084, 1);
1296                 evo_data(push, (asyw->image.mode << 8) |
1297                                (asyw->image.interval << 4));
1298                 evo_mthd(push, 0x00c0, 1);
1299                 evo_data(push, asyw->image.handle);
1300                 if (oclass < G82_DISP_BASE_CHANNEL_DMA) {
1301                         evo_mthd(push, 0x0800, 5);
1302                         evo_data(push, asyw->image.offset >> 8);
1303                         evo_data(push, 0x00000000);
1304                         evo_data(push, (asyw->image.h << 16) | asyw->image.w);
1305                         evo_data(push, (asyw->image.layout << 20) |
1306                                         asyw->image.pitch |
1307                                         asyw->image.block);
1308                         evo_data(push, (asyw->image.kind << 16) |
1309                                        (asyw->image.format << 8));
1310                 } else
1311                 if (oclass < GF110_DISP_BASE_CHANNEL_DMA) {
1312                         evo_mthd(push, 0x0800, 5);
1313                         evo_data(push, asyw->image.offset >> 8);
1314                         evo_data(push, 0x00000000);
1315                         evo_data(push, (asyw->image.h << 16) | asyw->image.w);
1316                         evo_data(push, (asyw->image.layout << 20) |
1317                                         asyw->image.pitch |
1318                                         asyw->image.block);
1319                         evo_data(push, asyw->image.format << 8);
1320                 } else {
1321                         evo_mthd(push, 0x0400, 5);
1322                         evo_data(push, asyw->image.offset >> 8);
1323                         evo_data(push, 0x00000000);
1324                         evo_data(push, (asyw->image.h << 16) | asyw->image.w);
1325                         evo_data(push, (asyw->image.layout << 24) |
1326                                         asyw->image.pitch |
1327                                         asyw->image.block);
1328                         evo_data(push, asyw->image.format << 8);
1329                 }
1330                 evo_kick(push, &base->chan);
1331         }
1332 }
1333
1334 static void
1335 nv50_base_ntfy_clr(struct nv50_wndw *wndw)
1336 {
1337         struct nv50_base *base = nv50_base(wndw);
1338         u32 *push;
1339         if ((push = evo_wait(&base->chan, 2))) {
1340                 evo_mthd(push, 0x00a4, 1);
1341                 evo_data(push, 0x00000000);
1342                 evo_kick(push, &base->chan);
1343         }
1344 }
1345
1346 static void
1347 nv50_base_ntfy_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1348 {
1349         struct nv50_base *base = nv50_base(wndw);
1350         u32 *push;
1351         if ((push = evo_wait(&base->chan, 3))) {
1352                 evo_mthd(push, 0x00a0, 2);
1353                 evo_data(push, (asyw->ntfy.awaken << 30) | asyw->ntfy.offset);
1354                 evo_data(push, asyw->ntfy.handle);
1355                 evo_kick(push, &base->chan);
1356         }
1357 }
1358
1359 static void
1360 nv50_base_sema_clr(struct nv50_wndw *wndw)
1361 {
1362         struct nv50_base *base = nv50_base(wndw);
1363         u32 *push;
1364         if ((push = evo_wait(&base->chan, 2))) {
1365                 evo_mthd(push, 0x0094, 1);
1366                 evo_data(push, 0x00000000);
1367                 evo_kick(push, &base->chan);
1368         }
1369 }
1370
1371 static void
1372 nv50_base_sema_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1373 {
1374         struct nv50_base *base = nv50_base(wndw);
1375         u32 *push;
1376         if ((push = evo_wait(&base->chan, 5))) {
1377                 evo_mthd(push, 0x0088, 4);
1378                 evo_data(push, asyw->sema.offset);
1379                 evo_data(push, asyw->sema.acquire);
1380                 evo_data(push, asyw->sema.release);
1381                 evo_data(push, asyw->sema.handle);
1382                 evo_kick(push, &base->chan);
1383         }
1384 }
1385
1386 static u32
1387 nv50_base_update(struct nv50_wndw *wndw, u32 interlock)
1388 {
1389         struct nv50_base *base = nv50_base(wndw);
1390         u32 *push;
1391
1392         if (!(push = evo_wait(&base->chan, 2)))
1393                 return 0;
1394         evo_mthd(push, 0x0080, 1);
1395         evo_data(push, interlock);
1396         evo_kick(push, &base->chan);
1397
1398         if (base->chan.base.base.user.oclass < GF110_DISP_BASE_CHANNEL_DMA)
1399                 return interlock ? 2 << (base->id * 8) : 0;
1400         return interlock ? 2 << (base->id * 4) : 0;
1401 }
1402
1403 static int
1404 nv50_base_ntfy_wait_begun(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
1405 {
1406         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
1407         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
1408         if (nvif_msec(&drm->client.device, 2000ULL,
1409                 u32 data = nouveau_bo_rd32(disp->sync, asyw->ntfy.offset / 4);
1410                 if ((data & 0xc0000000) == 0x40000000)
1411                         break;
1412                 usleep_range(1, 2);
1413         ) < 0)
1414                 return -ETIMEDOUT;
1415         return 0;
1416 }
1417
1418 static void
1419 nv50_base_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
1420                   struct nv50_head_atom *asyh)
1421 {
1422         asyh->base.cpp = 0;
1423 }
1424
1425 static int
1426 nv50_base_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
1427                   struct nv50_head_atom *asyh)
1428 {
1429         const struct drm_framebuffer *fb = asyw->state.fb;
1430         int ret;
1431
1432         if (!fb->format->depth)
1433                 return -EINVAL;
1434
1435         ret = drm_plane_helper_check_state(&asyw->state, &asyw->clip,
1436                                            DRM_PLANE_HELPER_NO_SCALING,
1437                                            DRM_PLANE_HELPER_NO_SCALING,
1438                                            false, true);
1439         if (ret)
1440                 return ret;
1441
1442         asyh->base.depth = fb->format->depth;
1443         asyh->base.cpp = fb->format->cpp[0];
1444         asyh->base.x = asyw->state.src.x1 >> 16;
1445         asyh->base.y = asyw->state.src.y1 >> 16;
1446         asyh->base.w = asyw->state.fb->width;
1447         asyh->base.h = asyw->state.fb->height;
1448
1449         switch (fb->format->format) {
1450         case DRM_FORMAT_C8         : asyw->image.format = 0x1e; break;
1451         case DRM_FORMAT_RGB565     : asyw->image.format = 0xe8; break;
1452         case DRM_FORMAT_XRGB1555   :
1453         case DRM_FORMAT_ARGB1555   : asyw->image.format = 0xe9; break;
1454         case DRM_FORMAT_XRGB8888   :
1455         case DRM_FORMAT_ARGB8888   : asyw->image.format = 0xcf; break;
1456         case DRM_FORMAT_XBGR2101010:
1457         case DRM_FORMAT_ABGR2101010: asyw->image.format = 0xd1; break;
1458         case DRM_FORMAT_XBGR8888   :
1459         case DRM_FORMAT_ABGR8888   : asyw->image.format = 0xd5; break;
1460         default:
1461                 WARN_ON(1);
1462                 return -EINVAL;
1463         }
1464
1465         asyw->lut.enable = 1;
1466         asyw->set.image = true;
1467         return 0;
1468 }
1469
1470 static void *
1471 nv50_base_dtor(struct nv50_wndw *wndw)
1472 {
1473         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
1474         struct nv50_base *base = nv50_base(wndw);
1475         nv50_dmac_destroy(&base->chan.base, disp->disp);
1476         return base;
1477 }
1478
1479 static const u32
1480 nv50_base_format[] = {
1481         DRM_FORMAT_C8,
1482         DRM_FORMAT_RGB565,
1483         DRM_FORMAT_XRGB1555,
1484         DRM_FORMAT_ARGB1555,
1485         DRM_FORMAT_XRGB8888,
1486         DRM_FORMAT_ARGB8888,
1487         DRM_FORMAT_XBGR2101010,
1488         DRM_FORMAT_ABGR2101010,
1489         DRM_FORMAT_XBGR8888,
1490         DRM_FORMAT_ABGR8888,
1491 };
1492
1493 static const struct nv50_wndw_func
1494 nv50_base = {
1495         .dtor = nv50_base_dtor,
1496         .acquire = nv50_base_acquire,
1497         .release = nv50_base_release,
1498         .sema_set = nv50_base_sema_set,
1499         .sema_clr = nv50_base_sema_clr,
1500         .ntfy_set = nv50_base_ntfy_set,
1501         .ntfy_clr = nv50_base_ntfy_clr,
1502         .ntfy_wait_begun = nv50_base_ntfy_wait_begun,
1503         .image_set = nv50_base_image_set,
1504         .image_clr = nv50_base_image_clr,
1505         .lut = nv50_base_lut,
1506         .update = nv50_base_update,
1507 };
1508
1509 static int
1510 nv50_base_new(struct nouveau_drm *drm, struct nv50_head *head,
1511               struct nv50_base **pbase)
1512 {
1513         struct nv50_disp *disp = nv50_disp(drm->dev);
1514         struct nv50_base *base;
1515         int ret;
1516
1517         if (!(base = *pbase = kzalloc(sizeof(*base), GFP_KERNEL)))
1518                 return -ENOMEM;
1519         base->id = head->base.index;
1520         base->wndw.ntfy = EVO_FLIP_NTFY0(base->id);
1521         base->wndw.sema = EVO_FLIP_SEM0(base->id);
1522         base->wndw.data = 0x00000000;
1523
1524         ret = nv50_wndw_ctor(&nv50_base, drm->dev, DRM_PLANE_TYPE_PRIMARY,
1525                              "base", base->id, &base->chan.base,
1526                              nv50_base_format, ARRAY_SIZE(nv50_base_format),
1527                              &base->wndw);
1528         if (ret) {
1529                 kfree(base);
1530                 return ret;
1531         }
1532
1533         ret = nv50_base_create(&drm->client.device, disp->disp, base->id,
1534                                disp->sync->bo.offset, &base->chan);
1535         if (ret)
1536                 return ret;
1537
1538         return nvif_notify_init(&base->chan.base.base.user, nv50_base_notify,
1539                                 false,
1540                                 NV50_DISP_BASE_CHANNEL_DMA_V0_NTFY_UEVENT,
1541                                 &(struct nvif_notify_uevent_req) {},
1542                                 sizeof(struct nvif_notify_uevent_req),
1543                                 sizeof(struct nvif_notify_uevent_rep),
1544                                 &base->wndw.notify);
1545 }
1546
1547 /******************************************************************************
1548  * Head
1549  *****************************************************************************/
1550 static void
1551 nv50_head_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
1552 {
1553         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1554         u32 *push;
1555         if ((push = evo_wait(core, 2))) {
1556                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
1557                         evo_mthd(push, 0x08a8 + (head->base.index * 0x400), 1);
1558                 else
1559                         evo_mthd(push, 0x0498 + (head->base.index * 0x300), 1);
1560                 evo_data(push, (asyh->procamp.sat.sin << 20) |
1561                                (asyh->procamp.sat.cos << 8));
1562                 evo_kick(push, core);
1563         }
1564 }
1565
1566 static void
1567 nv50_head_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
1568 {
1569         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1570         u32 *push;
1571         if ((push = evo_wait(core, 2))) {
1572                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
1573                         evo_mthd(push, 0x08a0 + (head->base.index * 0x0400), 1);
1574                 else
1575                 if (core->base.user.oclass < GK104_DISP_CORE_CHANNEL_DMA)
1576                         evo_mthd(push, 0x0490 + (head->base.index * 0x0300), 1);
1577                 else
1578                         evo_mthd(push, 0x04a0 + (head->base.index * 0x0300), 1);
1579                 evo_data(push, (asyh->dither.mode << 3) |
1580                                (asyh->dither.bits << 1) |
1581                                 asyh->dither.enable);
1582                 evo_kick(push, core);
1583         }
1584 }
1585
1586 static void
1587 nv50_head_ovly(struct nv50_head *head, struct nv50_head_atom *asyh)
1588 {
1589         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1590         u32 bounds = 0;
1591         u32 *push;
1592
1593         if (asyh->base.cpp) {
1594                 switch (asyh->base.cpp) {
1595                 case 8: bounds |= 0x00000500; break;
1596                 case 4: bounds |= 0x00000300; break;
1597                 case 2: bounds |= 0x00000100; break;
1598                 default:
1599                         WARN_ON(1);
1600                         break;
1601                 }
1602                 bounds |= 0x00000001;
1603         }
1604
1605         if ((push = evo_wait(core, 2))) {
1606                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
1607                         evo_mthd(push, 0x0904 + head->base.index * 0x400, 1);
1608                 else
1609                         evo_mthd(push, 0x04d4 + head->base.index * 0x300, 1);
1610                 evo_data(push, bounds);
1611                 evo_kick(push, core);
1612         }
1613 }
1614
1615 static void
1616 nv50_head_base(struct nv50_head *head, struct nv50_head_atom *asyh)
1617 {
1618         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1619         u32 bounds = 0;
1620         u32 *push;
1621
1622         if (asyh->base.cpp) {
1623                 switch (asyh->base.cpp) {
1624                 case 8: bounds |= 0x00000500; break;
1625                 case 4: bounds |= 0x00000300; break;
1626                 case 2: bounds |= 0x00000100; break;
1627                 case 1: bounds |= 0x00000000; break;
1628                 default:
1629                         WARN_ON(1);
1630                         break;
1631                 }
1632                 bounds |= 0x00000001;
1633         }
1634
1635         if ((push = evo_wait(core, 2))) {
1636                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
1637                         evo_mthd(push, 0x0900 + head->base.index * 0x400, 1);
1638                 else
1639                         evo_mthd(push, 0x04d0 + head->base.index * 0x300, 1);
1640                 evo_data(push, bounds);
1641                 evo_kick(push, core);
1642         }
1643 }
1644
1645 static void
1646 nv50_head_curs_clr(struct nv50_head *head)
1647 {
1648         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1649         u32 *push;
1650         if ((push = evo_wait(core, 4))) {
1651                 if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
1652                         evo_mthd(push, 0x0880 + head->base.index * 0x400, 1);
1653                         evo_data(push, 0x05000000);
1654                 } else
1655                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1656                         evo_mthd(push, 0x0880 + head->base.index * 0x400, 1);
1657                         evo_data(push, 0x05000000);
1658                         evo_mthd(push, 0x089c + head->base.index * 0x400, 1);
1659                         evo_data(push, 0x00000000);
1660                 } else {
1661                         evo_mthd(push, 0x0480 + head->base.index * 0x300, 1);
1662                         evo_data(push, 0x05000000);
1663                         evo_mthd(push, 0x048c + head->base.index * 0x300, 1);
1664                         evo_data(push, 0x00000000);
1665                 }
1666                 evo_kick(push, core);
1667         }
1668 }
1669
1670 static void
1671 nv50_head_curs_set(struct nv50_head *head, struct nv50_head_atom *asyh)
1672 {
1673         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1674         u32 *push;
1675         if ((push = evo_wait(core, 5))) {
1676                 if (core->base.user.oclass < G82_DISP_BASE_CHANNEL_DMA) {
1677                         evo_mthd(push, 0x0880 + head->base.index * 0x400, 2);
1678                         evo_data(push, 0x80000000 | (asyh->curs.layout << 26) |
1679                                                     (asyh->curs.format << 24));
1680                         evo_data(push, asyh->curs.offset >> 8);
1681                 } else
1682                 if (core->base.user.oclass < GF110_DISP_BASE_CHANNEL_DMA) {
1683                         evo_mthd(push, 0x0880 + head->base.index * 0x400, 2);
1684                         evo_data(push, 0x80000000 | (asyh->curs.layout << 26) |
1685                                                     (asyh->curs.format << 24));
1686                         evo_data(push, asyh->curs.offset >> 8);
1687                         evo_mthd(push, 0x089c + head->base.index * 0x400, 1);
1688                         evo_data(push, asyh->curs.handle);
1689                 } else {
1690                         evo_mthd(push, 0x0480 + head->base.index * 0x300, 2);
1691                         evo_data(push, 0x80000000 | (asyh->curs.layout << 26) |
1692                                                     (asyh->curs.format << 24));
1693                         evo_data(push, asyh->curs.offset >> 8);
1694                         evo_mthd(push, 0x048c + head->base.index * 0x300, 1);
1695                         evo_data(push, asyh->curs.handle);
1696                 }
1697                 evo_kick(push, core);
1698         }
1699 }
1700
1701 static void
1702 nv50_head_core_clr(struct nv50_head *head)
1703 {
1704         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1705         u32 *push;
1706         if ((push = evo_wait(core, 2))) {
1707                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
1708                         evo_mthd(push, 0x0874 + head->base.index * 0x400, 1);
1709                 else
1710                         evo_mthd(push, 0x0474 + head->base.index * 0x300, 1);
1711                 evo_data(push, 0x00000000);
1712                 evo_kick(push, core);
1713         }
1714 }
1715
1716 static void
1717 nv50_head_core_set(struct nv50_head *head, struct nv50_head_atom *asyh)
1718 {
1719         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1720         u32 *push;
1721         if ((push = evo_wait(core, 9))) {
1722                 if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
1723                         evo_mthd(push, 0x0860 + head->base.index * 0x400, 1);
1724                         evo_data(push, asyh->core.offset >> 8);
1725                         evo_mthd(push, 0x0868 + head->base.index * 0x400, 4);
1726                         evo_data(push, (asyh->core.h << 16) | asyh->core.w);
1727                         evo_data(push, asyh->core.layout << 20 |
1728                                        (asyh->core.pitch >> 8) << 8 |
1729                                        asyh->core.block);
1730                         evo_data(push, asyh->core.kind << 16 |
1731                                        asyh->core.format << 8);
1732                         evo_data(push, asyh->core.handle);
1733                         evo_mthd(push, 0x08c0 + head->base.index * 0x400, 1);
1734                         evo_data(push, (asyh->core.y << 16) | asyh->core.x);
1735                         /* EVO will complain with INVALID_STATE if we have an
1736                          * active cursor and (re)specify HeadSetContextDmaIso
1737                          * without also updating HeadSetOffsetCursor.
1738                          */
1739                         asyh->set.curs = asyh->curs.visible;
1740                 } else
1741                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1742                         evo_mthd(push, 0x0860 + head->base.index * 0x400, 1);
1743                         evo_data(push, asyh->core.offset >> 8);
1744                         evo_mthd(push, 0x0868 + head->base.index * 0x400, 4);
1745                         evo_data(push, (asyh->core.h << 16) | asyh->core.w);
1746                         evo_data(push, asyh->core.layout << 20 |
1747                                        (asyh->core.pitch >> 8) << 8 |
1748                                        asyh->core.block);
1749                         evo_data(push, asyh->core.format << 8);
1750                         evo_data(push, asyh->core.handle);
1751                         evo_mthd(push, 0x08c0 + head->base.index * 0x400, 1);
1752                         evo_data(push, (asyh->core.y << 16) | asyh->core.x);
1753                 } else {
1754                         evo_mthd(push, 0x0460 + head->base.index * 0x300, 1);
1755                         evo_data(push, asyh->core.offset >> 8);
1756                         evo_mthd(push, 0x0468 + head->base.index * 0x300, 4);
1757                         evo_data(push, (asyh->core.h << 16) | asyh->core.w);
1758                         evo_data(push, asyh->core.layout << 24 |
1759                                        (asyh->core.pitch >> 8) << 8 |
1760                                        asyh->core.block);
1761                         evo_data(push, asyh->core.format << 8);
1762                         evo_data(push, asyh->core.handle);
1763                         evo_mthd(push, 0x04b0 + head->base.index * 0x300, 1);
1764                         evo_data(push, (asyh->core.y << 16) | asyh->core.x);
1765                 }
1766                 evo_kick(push, core);
1767         }
1768 }
1769
1770 static void
1771 nv50_head_lut_clr(struct nv50_head *head)
1772 {
1773         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1774         u32 *push;
1775         if ((push = evo_wait(core, 4))) {
1776                 if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
1777                         evo_mthd(push, 0x0840 + (head->base.index * 0x400), 1);
1778                         evo_data(push, 0x40000000);
1779                 } else
1780                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1781                         evo_mthd(push, 0x0840 + (head->base.index * 0x400), 1);
1782                         evo_data(push, 0x40000000);
1783                         evo_mthd(push, 0x085c + (head->base.index * 0x400), 1);
1784                         evo_data(push, 0x00000000);
1785                 } else {
1786                         evo_mthd(push, 0x0440 + (head->base.index * 0x300), 1);
1787                         evo_data(push, 0x03000000);
1788                         evo_mthd(push, 0x045c + (head->base.index * 0x300), 1);
1789                         evo_data(push, 0x00000000);
1790                 }
1791                 evo_kick(push, core);
1792         }
1793 }
1794
1795 static void
1796 nv50_head_lut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
1797 {
1798         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1799         u32 *push;
1800         if ((push = evo_wait(core, 7))) {
1801                 if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
1802                         evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2);
1803                         evo_data(push, 0xc0000000);
1804                         evo_data(push, asyh->lut.offset >> 8);
1805                 } else
1806                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1807                         evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2);
1808                         evo_data(push, 0xc0000000);
1809                         evo_data(push, asyh->lut.offset >> 8);
1810                         evo_mthd(push, 0x085c + (head->base.index * 0x400), 1);
1811                         evo_data(push, asyh->lut.handle);
1812                 } else {
1813                         evo_mthd(push, 0x0440 + (head->base.index * 0x300), 4);
1814                         evo_data(push, 0x83000000);
1815                         evo_data(push, asyh->lut.offset >> 8);
1816                         evo_data(push, 0x00000000);
1817                         evo_data(push, 0x00000000);
1818                         evo_mthd(push, 0x045c + (head->base.index * 0x300), 1);
1819                         evo_data(push, asyh->lut.handle);
1820                 }
1821                 evo_kick(push, core);
1822         }
1823 }
1824
1825 static void
1826 nv50_head_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
1827 {
1828         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1829         struct nv50_head_mode *m = &asyh->mode;
1830         u32 *push;
1831         if ((push = evo_wait(core, 14))) {
1832                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1833                         evo_mthd(push, 0x0804 + (head->base.index * 0x400), 2);
1834                         evo_data(push, 0x00800000 | m->clock);
1835                         evo_data(push, m->interlace ? 0x00000002 : 0x00000000);
1836                         evo_mthd(push, 0x0810 + (head->base.index * 0x400), 7);
1837                         evo_data(push, 0x00000000);
1838                         evo_data(push, (m->v.active  << 16) | m->h.active );
1839                         evo_data(push, (m->v.synce   << 16) | m->h.synce  );
1840                         evo_data(push, (m->v.blanke  << 16) | m->h.blanke );
1841                         evo_data(push, (m->v.blanks  << 16) | m->h.blanks );
1842                         evo_data(push, (m->v.blank2e << 16) | m->v.blank2s);
1843                         evo_data(push, asyh->mode.v.blankus);
1844                         evo_mthd(push, 0x082c + (head->base.index * 0x400), 1);
1845                         evo_data(push, 0x00000000);
1846                 } else {
1847                         evo_mthd(push, 0x0410 + (head->base.index * 0x300), 6);
1848                         evo_data(push, 0x00000000);
1849                         evo_data(push, (m->v.active  << 16) | m->h.active );
1850                         evo_data(push, (m->v.synce   << 16) | m->h.synce  );
1851                         evo_data(push, (m->v.blanke  << 16) | m->h.blanke );
1852                         evo_data(push, (m->v.blanks  << 16) | m->h.blanks );
1853                         evo_data(push, (m->v.blank2e << 16) | m->v.blank2s);
1854                         evo_mthd(push, 0x042c + (head->base.index * 0x300), 2);
1855                         evo_data(push, 0x00000000); /* ??? */
1856                         evo_data(push, 0xffffff00);
1857                         evo_mthd(push, 0x0450 + (head->base.index * 0x300), 3);
1858                         evo_data(push, m->clock * 1000);
1859                         evo_data(push, 0x00200000); /* ??? */
1860                         evo_data(push, m->clock * 1000);
1861                 }
1862                 evo_kick(push, core);
1863         }
1864 }
1865
1866 static void
1867 nv50_head_view(struct nv50_head *head, struct nv50_head_atom *asyh)
1868 {
1869         struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
1870         u32 *push;
1871         if ((push = evo_wait(core, 10))) {
1872                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
1873                         evo_mthd(push, 0x08a4 + (head->base.index * 0x400), 1);
1874                         evo_data(push, 0x00000000);
1875                         evo_mthd(push, 0x08c8 + (head->base.index * 0x400), 1);
1876                         evo_data(push, (asyh->view.iH << 16) | asyh->view.iW);
1877                         evo_mthd(push, 0x08d8 + (head->base.index * 0x400), 2);
1878                         evo_data(push, (asyh->view.oH << 16) | asyh->view.oW);
1879                         evo_data(push, (asyh->view.oH << 16) | asyh->view.oW);
1880                 } else {
1881                         evo_mthd(push, 0x0494 + (head->base.index * 0x300), 1);
1882                         evo_data(push, 0x00000000);
1883                         evo_mthd(push, 0x04b8 + (head->base.index * 0x300), 1);
1884                         evo_data(push, (asyh->view.iH << 16) | asyh->view.iW);
1885                         evo_mthd(push, 0x04c0 + (head->base.index * 0x300), 3);
1886                         evo_data(push, (asyh->view.oH << 16) | asyh->view.oW);
1887                         evo_data(push, (asyh->view.oH << 16) | asyh->view.oW);
1888                         evo_data(push, (asyh->view.oH << 16) | asyh->view.oW);
1889                 }
1890                 evo_kick(push, core);
1891         }
1892 }
1893
1894 static void
1895 nv50_head_flush_clr(struct nv50_head *head, struct nv50_head_atom *asyh, bool y)
1896 {
1897         if (asyh->clr.core && (!asyh->set.core || y))
1898                 nv50_head_lut_clr(head);
1899         if (asyh->clr.core && (!asyh->set.core || y))
1900                 nv50_head_core_clr(head);
1901         if (asyh->clr.curs && (!asyh->set.curs || y))
1902                 nv50_head_curs_clr(head);
1903 }
1904
1905 static void
1906 nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
1907 {
1908         if (asyh->set.view   ) nv50_head_view    (head, asyh);
1909         if (asyh->set.mode   ) nv50_head_mode    (head, asyh);
1910         if (asyh->set.core   ) nv50_head_lut_set (head, asyh);
1911         if (asyh->set.core   ) nv50_head_core_set(head, asyh);
1912         if (asyh->set.curs   ) nv50_head_curs_set(head, asyh);
1913         if (asyh->set.base   ) nv50_head_base    (head, asyh);
1914         if (asyh->set.ovly   ) nv50_head_ovly    (head, asyh);
1915         if (asyh->set.dither ) nv50_head_dither  (head, asyh);
1916         if (asyh->set.procamp) nv50_head_procamp (head, asyh);
1917 }
1918
1919 static void
1920 nv50_head_atomic_check_procamp(struct nv50_head_atom *armh,
1921                                struct nv50_head_atom *asyh,
1922                                struct nouveau_conn_atom *asyc)
1923 {
1924         const int vib = asyc->procamp.color_vibrance - 100;
1925         const int hue = asyc->procamp.vibrant_hue - 90;
1926         const int adj = (vib > 0) ? 50 : 0;
1927         asyh->procamp.sat.cos = ((vib * 2047 + adj) / 100) & 0xfff;
1928         asyh->procamp.sat.sin = ((hue * 2047) / 100) & 0xfff;
1929         asyh->set.procamp = true;
1930 }
1931
1932 static void
1933 nv50_head_atomic_check_dither(struct nv50_head_atom *armh,
1934                               struct nv50_head_atom *asyh,
1935                               struct nouveau_conn_atom *asyc)
1936 {
1937         struct drm_connector *connector = asyc->state.connector;
1938         u32 mode = 0x00;
1939
1940         if (asyc->dither.mode == DITHERING_MODE_AUTO) {
1941                 if (asyh->base.depth > connector->display_info.bpc * 3)
1942                         mode = DITHERING_MODE_DYNAMIC2X2;
1943         } else {
1944                 mode = asyc->dither.mode;
1945         }
1946
1947         if (asyc->dither.depth == DITHERING_DEPTH_AUTO) {
1948                 if (connector->display_info.bpc >= 8)
1949                         mode |= DITHERING_DEPTH_8BPC;
1950         } else {
1951                 mode |= asyc->dither.depth;
1952         }
1953
1954         asyh->dither.enable = mode;
1955         asyh->dither.bits = mode >> 1;
1956         asyh->dither.mode = mode >> 3;
1957         asyh->set.dither = true;
1958 }
1959
1960 static void
1961 nv50_head_atomic_check_view(struct nv50_head_atom *armh,
1962                             struct nv50_head_atom *asyh,
1963                             struct nouveau_conn_atom *asyc)
1964 {
1965         struct drm_connector *connector = asyc->state.connector;
1966         struct drm_display_mode *omode = &asyh->state.adjusted_mode;
1967         struct drm_display_mode *umode = &asyh->state.mode;
1968         int mode = asyc->scaler.mode;
1969         struct edid *edid;
1970         int umode_vdisplay, omode_hdisplay, omode_vdisplay;
1971
1972         if (connector->edid_blob_ptr)
1973                 edid = (struct edid *)connector->edid_blob_ptr->data;
1974         else
1975                 edid = NULL;
1976
1977         if (!asyc->scaler.full) {
1978                 if (mode == DRM_MODE_SCALE_NONE)
1979                         omode = umode;
1980         } else {
1981                 /* Non-EDID LVDS/eDP mode. */
1982                 mode = DRM_MODE_SCALE_FULLSCREEN;
1983         }
1984
1985         /* For the user-specified mode, we must ignore doublescan and
1986          * the like, but honor frame packing.
1987          */
1988         umode_vdisplay = umode->vdisplay;
1989         if ((umode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1990                 umode_vdisplay += umode->vtotal;
1991         asyh->view.iW = umode->hdisplay;
1992         asyh->view.iH = umode_vdisplay;
1993         /* For the output mode, we can just use the stock helper. */
1994         drm_mode_get_hv_timing(omode, &omode_hdisplay, &omode_vdisplay);
1995         asyh->view.oW = omode_hdisplay;
1996         asyh->view.oH = omode_vdisplay;
1997
1998         /* Add overscan compensation if necessary, will keep the aspect
1999          * ratio the same as the backend mode unless overridden by the
2000          * user setting both hborder and vborder properties.
2001          */
2002         if ((asyc->scaler.underscan.mode == UNDERSCAN_ON ||
2003             (asyc->scaler.underscan.mode == UNDERSCAN_AUTO &&
2004              drm_detect_hdmi_monitor(edid)))) {
2005                 u32 bX = asyc->scaler.underscan.hborder;
2006                 u32 bY = asyc->scaler.underscan.vborder;
2007                 u32 r = (asyh->view.oH << 19) / asyh->view.oW;
2008
2009                 if (bX) {
2010                         asyh->view.oW -= (bX * 2);
2011                         if (bY) asyh->view.oH -= (bY * 2);
2012                         else    asyh->view.oH  = ((asyh->view.oW * r) + (r / 2)) >> 19;
2013                 } else {
2014                         asyh->view.oW -= (asyh->view.oW >> 4) + 32;
2015                         if (bY) asyh->view.oH -= (bY * 2);
2016                         else    asyh->view.oH  = ((asyh->view.oW * r) + (r / 2)) >> 19;
2017                 }
2018         }
2019
2020         /* Handle CENTER/ASPECT scaling, taking into account the areas
2021          * removed already for overscan compensation.
2022          */
2023         switch (mode) {
2024         case DRM_MODE_SCALE_CENTER:
2025                 asyh->view.oW = min((u16)umode->hdisplay, asyh->view.oW);
2026                 asyh->view.oH = min((u16)umode_vdisplay, asyh->view.oH);
2027                 /* fall-through */
2028         case DRM_MODE_SCALE_ASPECT:
2029                 if (asyh->view.oH < asyh->view.oW) {
2030                         u32 r = (asyh->view.iW << 19) / asyh->view.iH;
2031                         asyh->view.oW = ((asyh->view.oH * r) + (r / 2)) >> 19;
2032                 } else {
2033                         u32 r = (asyh->view.iH << 19) / asyh->view.iW;
2034                         asyh->view.oH = ((asyh->view.oW * r) + (r / 2)) >> 19;
2035                 }
2036                 break;
2037         default:
2038                 break;
2039         }
2040
2041         asyh->set.view = true;
2042 }
2043
2044 static void
2045 nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
2046 {
2047         struct drm_display_mode *mode = &asyh->state.adjusted_mode;
2048         struct nv50_head_mode *m = &asyh->mode;
2049         u32 blankus;
2050
2051         drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V | CRTC_STEREO_DOUBLE);
2052
2053         /*
2054          * DRM modes are defined in terms of a repeating interval
2055          * starting with the active display area.  The hardware modes
2056          * are defined in terms of a repeating interval starting one
2057          * unit (pixel or line) into the sync pulse.  So, add bias.
2058          */
2059
2060         m->h.active = mode->crtc_htotal;
2061         m->h.synce  = mode->crtc_hsync_end - mode->crtc_hsync_start - 1;
2062         m->h.blanke = mode->crtc_hblank_end - mode->crtc_hsync_start - 1;
2063         m->h.blanks = m->h.blanke + mode->crtc_hdisplay;
2064
2065         m->v.active = mode->crtc_vtotal;
2066         m->v.synce  = mode->crtc_vsync_end - mode->crtc_vsync_start - 1;
2067         m->v.blanke = mode->crtc_vblank_end - mode->crtc_vsync_start - 1;
2068         m->v.blanks = m->v.blanke + mode->crtc_vdisplay;
2069
2070         /*XXX: Safe underestimate, even "0" works */
2071         blankus = (m->v.active - mode->crtc_vdisplay - 2) * m->h.active;
2072         blankus *= 1000;
2073         blankus /= mode->crtc_clock;
2074         m->v.blankus = blankus;
2075
2076         if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
2077                 m->v.blank2e =  m->v.active + m->v.blanke;
2078                 m->v.blank2s =  m->v.blank2e + mode->crtc_vdisplay;
2079                 m->v.active  = (m->v.active * 2) + 1;
2080                 m->interlace = true;
2081         } else {
2082                 m->v.blank2e = 0;
2083                 m->v.blank2s = 1;
2084                 m->interlace = false;
2085         }
2086         m->clock = mode->crtc_clock;
2087
2088         asyh->set.mode = true;
2089 }
2090
2091 static int
2092 nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
2093 {
2094         struct nouveau_drm *drm = nouveau_drm(crtc->dev);
2095         struct nv50_disp *disp = nv50_disp(crtc->dev);
2096         struct nv50_head *head = nv50_head(crtc);
2097         struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
2098         struct nv50_head_atom *asyh = nv50_head_atom(state);
2099         struct nouveau_conn_atom *asyc = NULL;
2100         struct drm_connector_state *conns;
2101         struct drm_connector *conn;
2102         int i;
2103
2104         NV_ATOMIC(drm, "%s atomic_check %d\n", crtc->name, asyh->state.active);
2105         if (asyh->state.active) {
2106                 for_each_new_connector_in_state(asyh->state.state, conn, conns, i) {
2107                         if (conns->crtc == crtc) {
2108                                 asyc = nouveau_conn_atom(conns);
2109                                 break;
2110                         }
2111                 }
2112
2113                 if (armh->state.active) {
2114                         if (asyc) {
2115                                 if (asyh->state.mode_changed)
2116                                         asyc->set.scaler = true;
2117                                 if (armh->base.depth != asyh->base.depth)
2118                                         asyc->set.dither = true;
2119                         }
2120                 } else {
2121                         if (asyc)
2122                                 asyc->set.mask = ~0;
2123                         asyh->set.mask = ~0;
2124                 }
2125
2126                 if (asyh->state.mode_changed)
2127                         nv50_head_atomic_check_mode(head, asyh);
2128
2129                 if (asyc) {
2130                         if (asyc->set.scaler)
2131                                 nv50_head_atomic_check_view(armh, asyh, asyc);
2132                         if (asyc->set.dither)
2133                                 nv50_head_atomic_check_dither(armh, asyh, asyc);
2134                         if (asyc->set.procamp)
2135                                 nv50_head_atomic_check_procamp(armh, asyh, asyc);
2136                 }
2137
2138                 if ((asyh->core.visible = (asyh->base.cpp != 0))) {
2139                         asyh->core.x = asyh->base.x;
2140                         asyh->core.y = asyh->base.y;
2141                         asyh->core.w = asyh->base.w;
2142                         asyh->core.h = asyh->base.h;
2143                 } else
2144                 if ((asyh->core.visible = asyh->curs.visible)) {
2145                         /*XXX: We need to either find some way of having the
2146                          *     primary base layer appear black, while still
2147                          *     being able to display the other layers, or we
2148                          *     need to allocate a dummy black surface here.
2149                          */
2150                         asyh->core.x = 0;
2151                         asyh->core.y = 0;
2152                         asyh->core.w = asyh->state.mode.hdisplay;
2153                         asyh->core.h = asyh->state.mode.vdisplay;
2154                 }
2155                 asyh->core.handle = disp->mast.base.vram.handle;
2156                 asyh->core.offset = 0;
2157                 asyh->core.format = 0xcf;
2158                 asyh->core.kind = 0;
2159                 asyh->core.layout = 1;
2160                 asyh->core.block = 0;
2161                 asyh->core.pitch = ALIGN(asyh->core.w, 64) * 4;
2162                 asyh->lut.handle = disp->mast.base.vram.handle;
2163                 asyh->lut.offset = head->base.lut.nvbo->bo.offset;
2164                 asyh->set.base = armh->base.cpp != asyh->base.cpp;
2165                 asyh->set.ovly = armh->ovly.cpp != asyh->ovly.cpp;
2166         } else {
2167                 asyh->core.visible = false;
2168                 asyh->curs.visible = false;
2169                 asyh->base.cpp = 0;
2170                 asyh->ovly.cpp = 0;
2171         }
2172
2173         if (!drm_atomic_crtc_needs_modeset(&asyh->state)) {
2174                 if (asyh->core.visible) {
2175                         if (memcmp(&armh->core, &asyh->core, sizeof(asyh->core)))
2176                                 asyh->set.core = true;
2177                 } else
2178                 if (armh->core.visible) {
2179                         asyh->clr.core = true;
2180                 }
2181
2182                 if (asyh->curs.visible) {
2183                         if (memcmp(&armh->curs, &asyh->curs, sizeof(asyh->curs)))
2184                                 asyh->set.curs = true;
2185                 } else
2186                 if (armh->curs.visible) {
2187                         asyh->clr.curs = true;
2188                 }
2189         } else {
2190                 asyh->clr.core = armh->core.visible;
2191                 asyh->clr.curs = armh->curs.visible;
2192                 asyh->set.core = asyh->core.visible;
2193                 asyh->set.curs = asyh->curs.visible;
2194         }
2195
2196         if (asyh->clr.mask || asyh->set.mask)
2197                 nv50_atom(asyh->state.state)->lock_core = true;
2198         return 0;
2199 }
2200
2201 static void
2202 nv50_head_lut_load(struct drm_crtc *crtc)
2203 {
2204         struct nv50_disp *disp = nv50_disp(crtc->dev);
2205         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
2206         void __iomem *lut = nvbo_kmap_obj_iovirtual(nv_crtc->lut.nvbo);
2207         u16 *r, *g, *b;
2208         int i;
2209
2210         r = crtc->gamma_store;
2211         g = r + crtc->gamma_size;
2212         b = g + crtc->gamma_size;
2213
2214         for (i = 0; i < 256; i++) {
2215                 if (disp->disp->oclass < GF110_DISP) {
2216                         writew((*r++ >> 2) + 0x0000, lut + (i * 0x08) + 0);
2217                         writew((*g++ >> 2) + 0x0000, lut + (i * 0x08) + 2);
2218                         writew((*b++ >> 2) + 0x0000, lut + (i * 0x08) + 4);
2219                 } else {
2220                         /* 0x6000 interferes with the 14-bit color??? */
2221                         writew((*r++ >> 2) + 0x6000, lut + (i * 0x20) + 0);
2222                         writew((*g++ >> 2) + 0x6000, lut + (i * 0x20) + 2);
2223                         writew((*b++ >> 2) + 0x6000, lut + (i * 0x20) + 4);
2224                 }
2225         }
2226 }
2227
2228 static const struct drm_crtc_helper_funcs
2229 nv50_head_help = {
2230         .atomic_check = nv50_head_atomic_check,
2231 };
2232
2233 static int
2234 nv50_head_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
2235                     uint32_t size,
2236                     struct drm_modeset_acquire_ctx *ctx)
2237 {
2238         nv50_head_lut_load(crtc);
2239         return 0;
2240 }
2241
2242 static void
2243 nv50_head_atomic_destroy_state(struct drm_crtc *crtc,
2244                                struct drm_crtc_state *state)
2245 {
2246         struct nv50_head_atom *asyh = nv50_head_atom(state);
2247         __drm_atomic_helper_crtc_destroy_state(&asyh->state);
2248         kfree(asyh);
2249 }
2250
2251 static struct drm_crtc_state *
2252 nv50_head_atomic_duplicate_state(struct drm_crtc *crtc)
2253 {
2254         struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
2255         struct nv50_head_atom *asyh;
2256         if (!(asyh = kmalloc(sizeof(*asyh), GFP_KERNEL)))
2257                 return NULL;
2258         __drm_atomic_helper_crtc_duplicate_state(crtc, &asyh->state);
2259         asyh->view = armh->view;
2260         asyh->mode = armh->mode;
2261         asyh->lut  = armh->lut;
2262         asyh->core = armh->core;
2263         asyh->curs = armh->curs;
2264         asyh->base = armh->base;
2265         asyh->ovly = armh->ovly;
2266         asyh->dither = armh->dither;
2267         asyh->procamp = armh->procamp;
2268         asyh->clr.mask = 0;
2269         asyh->set.mask = 0;
2270         return &asyh->state;
2271 }
2272
2273 static void
2274 __drm_atomic_helper_crtc_reset(struct drm_crtc *crtc,
2275                                struct drm_crtc_state *state)
2276 {
2277         if (crtc->state)
2278                 crtc->funcs->atomic_destroy_state(crtc, crtc->state);
2279         crtc->state = state;
2280         crtc->state->crtc = crtc;
2281 }
2282
2283 static void
2284 nv50_head_reset(struct drm_crtc *crtc)
2285 {
2286         struct nv50_head_atom *asyh;
2287
2288         if (WARN_ON(!(asyh = kzalloc(sizeof(*asyh), GFP_KERNEL))))
2289                 return;
2290
2291         __drm_atomic_helper_crtc_reset(crtc, &asyh->state);
2292 }
2293
2294 static void
2295 nv50_head_destroy(struct drm_crtc *crtc)
2296 {
2297         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
2298         struct nv50_disp *disp = nv50_disp(crtc->dev);
2299         struct nv50_head *head = nv50_head(crtc);
2300
2301         nv50_dmac_destroy(&head->ovly.base, disp->disp);
2302         nv50_pioc_destroy(&head->oimm.base);
2303
2304         nouveau_bo_unmap(nv_crtc->lut.nvbo);
2305         if (nv_crtc->lut.nvbo)
2306                 nouveau_bo_unpin(nv_crtc->lut.nvbo);
2307         nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
2308
2309         drm_crtc_cleanup(crtc);
2310         kfree(crtc);
2311 }
2312
2313 static const struct drm_crtc_funcs
2314 nv50_head_func = {
2315         .reset = nv50_head_reset,
2316         .gamma_set = nv50_head_gamma_set,
2317         .destroy = nv50_head_destroy,
2318         .set_config = drm_atomic_helper_set_config,
2319         .page_flip = drm_atomic_helper_page_flip,
2320         .atomic_duplicate_state = nv50_head_atomic_duplicate_state,
2321         .atomic_destroy_state = nv50_head_atomic_destroy_state,
2322 };
2323
2324 static int
2325 nv50_head_create(struct drm_device *dev, int index)
2326 {
2327         struct nouveau_drm *drm = nouveau_drm(dev);
2328         struct nvif_device *device = &drm->client.device;
2329         struct nv50_disp *disp = nv50_disp(dev);
2330         struct nv50_head *head;
2331         struct nv50_base *base;
2332         struct nv50_curs *curs;
2333         struct drm_crtc *crtc;
2334         int ret;
2335
2336         head = kzalloc(sizeof(*head), GFP_KERNEL);
2337         if (!head)
2338                 return -ENOMEM;
2339
2340         head->base.index = index;
2341         ret = nv50_base_new(drm, head, &base);
2342         if (ret == 0)
2343                 ret = nv50_curs_new(drm, head, &curs);
2344         if (ret) {
2345                 kfree(head);
2346                 return ret;
2347         }
2348
2349         crtc = &head->base.base;
2350         drm_crtc_init_with_planes(dev, crtc, &base->wndw.plane,
2351                                   &curs->wndw.plane, &nv50_head_func,
2352                                   "head-%d", head->base.index);
2353         drm_crtc_helper_add(crtc, &nv50_head_help);
2354         drm_mode_crtc_set_gamma_size(crtc, 256);
2355
2356         ret = nouveau_bo_new(&drm->client, 8192, 0x100, TTM_PL_FLAG_VRAM,
2357                              0, 0x0000, NULL, NULL, &head->base.lut.nvbo);
2358         if (!ret) {
2359                 ret = nouveau_bo_pin(head->base.lut.nvbo, TTM_PL_FLAG_VRAM, true);
2360                 if (!ret) {
2361                         ret = nouveau_bo_map(head->base.lut.nvbo);
2362                         if (ret)
2363                                 nouveau_bo_unpin(head->base.lut.nvbo);
2364                 }
2365                 if (ret)
2366                         nouveau_bo_ref(NULL, &head->base.lut.nvbo);
2367         }
2368
2369         if (ret)
2370                 goto out;
2371
2372         /* allocate overlay resources */
2373         ret = nv50_oimm_create(device, disp->disp, index, &head->oimm);
2374         if (ret)
2375                 goto out;
2376
2377         ret = nv50_ovly_create(device, disp->disp, index, disp->sync->bo.offset,
2378                                &head->ovly);
2379         if (ret)
2380                 goto out;
2381
2382 out:
2383         if (ret)
2384                 nv50_head_destroy(crtc);
2385         return ret;
2386 }
2387
2388 /******************************************************************************
2389  * Output path helpers
2390  *****************************************************************************/
2391 static void
2392 nv50_outp_release(struct nouveau_encoder *nv_encoder)
2393 {
2394         struct nv50_disp *disp = nv50_disp(nv_encoder->base.base.dev);
2395         struct {
2396                 struct nv50_disp_mthd_v1 base;
2397         } args = {
2398                 .base.version = 1,
2399                 .base.method = NV50_DISP_MTHD_V1_RELEASE,
2400                 .base.hasht  = nv_encoder->dcb->hasht,
2401                 .base.hashm  = nv_encoder->dcb->hashm,
2402         };
2403
2404         nvif_mthd(disp->disp, 0, &args, sizeof(args));
2405         nv_encoder->or = -1;
2406         nv_encoder->link = 0;
2407 }
2408
2409 static int
2410 nv50_outp_acquire(struct nouveau_encoder *nv_encoder)
2411 {
2412         struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
2413         struct nv50_disp *disp = nv50_disp(drm->dev);
2414         struct {
2415                 struct nv50_disp_mthd_v1 base;
2416                 struct nv50_disp_acquire_v0 info;
2417         } args = {
2418                 .base.version = 1,
2419                 .base.method = NV50_DISP_MTHD_V1_ACQUIRE,
2420                 .base.hasht  = nv_encoder->dcb->hasht,
2421                 .base.hashm  = nv_encoder->dcb->hashm,
2422         };
2423         int ret;
2424
2425         ret = nvif_mthd(disp->disp, 0, &args, sizeof(args));
2426         if (ret) {
2427                 NV_ERROR(drm, "error acquiring output path: %d\n", ret);
2428                 return ret;
2429         }
2430
2431         nv_encoder->or = args.info.or;
2432         nv_encoder->link = args.info.link;
2433         return 0;
2434 }
2435
2436 static int
2437 nv50_outp_atomic_check_view(struct drm_encoder *encoder,
2438                             struct drm_crtc_state *crtc_state,
2439                             struct drm_connector_state *conn_state,
2440                             struct drm_display_mode *native_mode)
2441 {
2442         struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
2443         struct drm_display_mode *mode = &crtc_state->mode;
2444         struct drm_connector *connector = conn_state->connector;
2445         struct nouveau_conn_atom *asyc = nouveau_conn_atom(conn_state);
2446         struct nouveau_drm *drm = nouveau_drm(encoder->dev);
2447
2448         NV_ATOMIC(drm, "%s atomic_check\n", encoder->name);
2449         asyc->scaler.full = false;
2450         if (!native_mode)
2451                 return 0;
2452
2453         if (asyc->scaler.mode == DRM_MODE_SCALE_NONE) {
2454                 switch (connector->connector_type) {
2455                 case DRM_MODE_CONNECTOR_LVDS:
2456                 case DRM_MODE_CONNECTOR_eDP:
2457                         /* Force use of scaler for non-EDID modes. */
2458                         if (adjusted_mode->type & DRM_MODE_TYPE_DRIVER)
2459                                 break;
2460                         mode = native_mode;
2461                         asyc->scaler.full = true;
2462                         break;
2463                 default:
2464                         break;
2465                 }
2466         } else {
2467                 mode = native_mode;
2468         }
2469
2470         if (!drm_mode_equal(adjusted_mode, mode)) {
2471                 drm_mode_copy(adjusted_mode, mode);
2472                 crtc_state->mode_changed = true;
2473         }
2474
2475         return 0;
2476 }
2477
2478 static int
2479 nv50_outp_atomic_check(struct drm_encoder *encoder,
2480                        struct drm_crtc_state *crtc_state,
2481                        struct drm_connector_state *conn_state)
2482 {
2483         struct nouveau_connector *nv_connector =
2484                 nouveau_connector(conn_state->connector);
2485         return nv50_outp_atomic_check_view(encoder, crtc_state, conn_state,
2486                                            nv_connector->native_mode);
2487 }
2488
2489 /******************************************************************************
2490  * DAC
2491  *****************************************************************************/
2492 static void
2493 nv50_dac_disable(struct drm_encoder *encoder)
2494 {
2495         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2496         struct nv50_mast *mast = nv50_mast(encoder->dev);
2497         const int or = nv_encoder->or;
2498         u32 *push;
2499
2500         if (nv_encoder->crtc) {
2501                 push = evo_wait(mast, 4);
2502                 if (push) {
2503                         if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
2504                                 evo_mthd(push, 0x0400 + (or * 0x080), 1);
2505                                 evo_data(push, 0x00000000);
2506                         } else {
2507                                 evo_mthd(push, 0x0180 + (or * 0x020), 1);
2508                                 evo_data(push, 0x00000000);
2509                         }
2510                         evo_kick(push, mast);
2511                 }
2512         }
2513
2514         nv_encoder->crtc = NULL;
2515         nv50_outp_release(nv_encoder);
2516 }
2517
2518 static void
2519 nv50_dac_enable(struct drm_encoder *encoder)
2520 {
2521         struct nv50_mast *mast = nv50_mast(encoder->dev);
2522         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2523         struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
2524         struct drm_display_mode *mode = &nv_crtc->base.state->adjusted_mode;
2525         u32 *push;
2526
2527         nv50_outp_acquire(nv_encoder);
2528
2529         push = evo_wait(mast, 8);
2530         if (push) {
2531                 if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
2532                         u32 syncs = 0x00000000;
2533
2534                         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2535                                 syncs |= 0x00000001;
2536                         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2537                                 syncs |= 0x00000002;
2538
2539                         evo_mthd(push, 0x0400 + (nv_encoder->or * 0x080), 2);
2540                         evo_data(push, 1 << nv_crtc->index);
2541                         evo_data(push, syncs);
2542                 } else {
2543                         u32 magic = 0x31ec6000 | (nv_crtc->index << 25);
2544                         u32 syncs = 0x00000001;
2545
2546                         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
2547                                 syncs |= 0x00000008;
2548                         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
2549                                 syncs |= 0x00000010;
2550
2551                         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
2552                                 magic |= 0x00000001;
2553
2554                         evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
2555                         evo_data(push, syncs);
2556                         evo_data(push, magic);
2557                         evo_mthd(push, 0x0180 + (nv_encoder->or * 0x020), 1);
2558                         evo_data(push, 1 << nv_crtc->index);
2559                 }
2560
2561                 evo_kick(push, mast);
2562         }
2563
2564         nv_encoder->crtc = encoder->crtc;
2565 }
2566
2567 static enum drm_connector_status
2568 nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector)
2569 {
2570         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2571         struct nv50_disp *disp = nv50_disp(encoder->dev);
2572         struct {
2573                 struct nv50_disp_mthd_v1 base;
2574                 struct nv50_disp_dac_load_v0 load;
2575         } args = {
2576                 .base.version = 1,
2577                 .base.method = NV50_DISP_MTHD_V1_DAC_LOAD,
2578                 .base.hasht  = nv_encoder->dcb->hasht,
2579                 .base.hashm  = nv_encoder->dcb->hashm,
2580         };
2581         int ret;
2582
2583         args.load.data = nouveau_drm(encoder->dev)->vbios.dactestval;
2584         if (args.load.data == 0)
2585                 args.load.data = 340;
2586
2587         ret = nvif_mthd(disp->disp, 0, &args, sizeof(args));
2588         if (ret || !args.load.load)
2589                 return connector_status_disconnected;
2590
2591         return connector_status_connected;
2592 }
2593
2594 static const struct drm_encoder_helper_funcs
2595 nv50_dac_help = {
2596         .atomic_check = nv50_outp_atomic_check,
2597         .enable = nv50_dac_enable,
2598         .disable = nv50_dac_disable,
2599         .detect = nv50_dac_detect
2600 };
2601
2602 static void
2603 nv50_dac_destroy(struct drm_encoder *encoder)
2604 {
2605         drm_encoder_cleanup(encoder);
2606         kfree(encoder);
2607 }
2608
2609 static const struct drm_encoder_funcs
2610 nv50_dac_func = {
2611         .destroy = nv50_dac_destroy,
2612 };
2613
2614 static int
2615 nv50_dac_create(struct drm_connector *connector, struct dcb_output *dcbe)
2616 {
2617         struct nouveau_drm *drm = nouveau_drm(connector->dev);
2618         struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device);
2619         struct nvkm_i2c_bus *bus;
2620         struct nouveau_encoder *nv_encoder;
2621         struct drm_encoder *encoder;
2622         int type = DRM_MODE_ENCODER_DAC;
2623
2624         nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
2625         if (!nv_encoder)
2626                 return -ENOMEM;
2627         nv_encoder->dcb = dcbe;
2628
2629         bus = nvkm_i2c_bus_find(i2c, dcbe->i2c_index);
2630         if (bus)
2631                 nv_encoder->i2c = &bus->i2c;
2632
2633         encoder = to_drm_encoder(nv_encoder);
2634         encoder->possible_crtcs = dcbe->heads;
2635         encoder->possible_clones = 0;
2636         drm_encoder_init(connector->dev, encoder, &nv50_dac_func, type,
2637                          "dac-%04x-%04x", dcbe->hasht, dcbe->hashm);
2638         drm_encoder_helper_add(encoder, &nv50_dac_help);
2639
2640         drm_mode_connector_attach_encoder(connector, encoder);
2641         return 0;
2642 }
2643
2644 /******************************************************************************
2645  * Audio
2646  *****************************************************************************/
2647 static void
2648 nv50_audio_disable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
2649 {
2650         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2651         struct nv50_disp *disp = nv50_disp(encoder->dev);
2652         struct {
2653                 struct nv50_disp_mthd_v1 base;
2654                 struct nv50_disp_sor_hda_eld_v0 eld;
2655         } args = {
2656                 .base.version = 1,
2657                 .base.method  = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
2658                 .base.hasht   = nv_encoder->dcb->hasht,
2659                 .base.hashm   = (0xf0ff & nv_encoder->dcb->hashm) |
2660                                 (0x0100 << nv_crtc->index),
2661         };
2662
2663         nvif_mthd(disp->disp, 0, &args, sizeof(args));
2664 }
2665
2666 static void
2667 nv50_audio_enable(struct drm_encoder *encoder, struct drm_display_mode *mode)
2668 {
2669         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2670         struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
2671         struct nouveau_connector *nv_connector;
2672         struct nv50_disp *disp = nv50_disp(encoder->dev);
2673         struct __packed {
2674                 struct {
2675                         struct nv50_disp_mthd_v1 mthd;
2676                         struct nv50_disp_sor_hda_eld_v0 eld;
2677                 } base;
2678                 u8 data[sizeof(nv_connector->base.eld)];
2679         } args = {
2680                 .base.mthd.version = 1,
2681                 .base.mthd.method  = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
2682                 .base.mthd.hasht   = nv_encoder->dcb->hasht,
2683                 .base.mthd.hashm   = (0xf0ff & nv_encoder->dcb->hashm) |
2684                                      (0x0100 << nv_crtc->index),
2685         };
2686
2687         nv_connector = nouveau_encoder_connector_get(nv_encoder);
2688         if (!drm_detect_monitor_audio(nv_connector->edid))
2689                 return;
2690
2691         drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
2692         memcpy(args.data, nv_connector->base.eld, sizeof(args.data));
2693
2694         nvif_mthd(disp->disp, 0, &args,
2695                   sizeof(args.base) + drm_eld_size(args.data));
2696 }
2697
2698 /******************************************************************************
2699  * HDMI
2700  *****************************************************************************/
2701 static void
2702 nv50_hdmi_disable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
2703 {
2704         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2705         struct nv50_disp *disp = nv50_disp(encoder->dev);
2706         struct {
2707                 struct nv50_disp_mthd_v1 base;
2708                 struct nv50_disp_sor_hdmi_pwr_v0 pwr;
2709         } args = {
2710                 .base.version = 1,
2711                 .base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
2712                 .base.hasht  = nv_encoder->dcb->hasht,
2713                 .base.hashm  = (0xf0ff & nv_encoder->dcb->hashm) |
2714                                (0x0100 << nv_crtc->index),
2715         };
2716
2717         nvif_mthd(disp->disp, 0, &args, sizeof(args));
2718 }
2719
2720 static void
2721 nv50_hdmi_enable(struct drm_encoder *encoder, struct drm_display_mode *mode)
2722 {
2723         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
2724         struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
2725         struct nv50_disp *disp = nv50_disp(encoder->dev);
2726         struct {
2727                 struct nv50_disp_mthd_v1 base;
2728                 struct nv50_disp_sor_hdmi_pwr_v0 pwr;
2729                 u8 infoframes[2 * 17]; /* two frames, up to 17 bytes each */
2730         } args = {
2731                 .base.version = 1,
2732                 .base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
2733                 .base.hasht  = nv_encoder->dcb->hasht,
2734                 .base.hashm  = (0xf0ff & nv_encoder->dcb->hashm) |
2735                                (0x0100 << nv_crtc->index),
2736                 .pwr.state = 1,
2737                 .pwr.rekey = 56, /* binary driver, and tegra, constant */
2738         };
2739         struct nouveau_connector *nv_connector;
2740         u32 max_ac_packet;
2741         union hdmi_infoframe avi_frame;
2742         union hdmi_infoframe vendor_frame;
2743         int ret;
2744         int size;
2745
2746         nv_connector = nouveau_encoder_connector_get(nv_encoder);
2747         if (!drm_detect_hdmi_monitor(nv_connector->edid))
2748                 return;
2749
2750         ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame.avi, mode,
2751                                                        false);
2752         if (!ret) {
2753                 /* We have an AVI InfoFrame, populate it to the display */
2754                 args.pwr.avi_infoframe_length
2755                         = hdmi_infoframe_pack(&avi_frame, args.infoframes, 17);
2756         }
2757
2758         ret = drm_hdmi_vendor_infoframe_from_display_mode(&vendor_frame.vendor.hdmi, mode);
2759         if (!ret) {
2760                 /* We have a Vendor InfoFrame, populate it to the display */
2761                 args.pwr.vendor_infoframe_length
2762                         = hdmi_infoframe_pack(&vendor_frame,
2763                                               args.infoframes
2764                                               + args.pwr.avi_infoframe_length,
2765                                               17);
2766         }
2767
2768         max_ac_packet  = mode->htotal - mode->hdisplay;
2769         max_ac_packet -= args.pwr.rekey;
2770         max_ac_packet -= 18; /* constant from tegra */
2771         args.pwr.max_ac_packet = max_ac_packet / 32;
2772
2773         size = sizeof(args.base)
2774                 + sizeof(args.pwr)
2775                 + args.pwr.avi_infoframe_length
2776                 + args.pwr.vendor_infoframe_length;
2777         nvif_mthd(disp->disp, 0, &args, size);
2778         nv50_audio_enable(encoder, mode);
2779 }
2780
2781 /******************************************************************************
2782  * MST
2783  *****************************************************************************/
2784 #define nv50_mstm(p) container_of((p), struct nv50_mstm, mgr)
2785 #define nv50_mstc(p) container_of((p), struct nv50_mstc, connector)
2786 #define nv50_msto(p) container_of((p), struct nv50_msto, encoder)
2787
2788 struct nv50_mstm {
2789         struct nouveau_encoder *outp;
2790
2791         struct drm_dp_mst_topology_mgr mgr;
2792         struct nv50_msto *msto[4];
2793
2794         bool modified;
2795         bool disabled;
2796         int links;
2797 };
2798
2799 struct nv50_mstc {
2800         struct nv50_mstm *mstm;
2801         struct drm_dp_mst_port *port;
2802         struct drm_connector connector;
2803
2804         struct drm_display_mode *native;
2805         struct edid *edid;
2806
2807         int pbn;
2808 };
2809
2810 struct nv50_msto {
2811         struct drm_encoder encoder;
2812
2813         struct nv50_head *head;
2814         struct nv50_mstc *mstc;
2815         bool disabled;
2816 };
2817
2818 static struct drm_dp_payload *
2819 nv50_msto_payload(struct nv50_msto *msto)
2820 {
2821         struct nouveau_drm *drm = nouveau_drm(msto->encoder.dev);
2822         struct nv50_mstc *mstc = msto->mstc;
2823         struct nv50_mstm *mstm = mstc->mstm;
2824         int vcpi = mstc->port->vcpi.vcpi, i;
2825
2826         NV_ATOMIC(drm, "%s: vcpi %d\n", msto->encoder.name, vcpi);
2827         for (i = 0; i < mstm->mgr.max_payloads; i++) {
2828                 struct drm_dp_payload *payload = &mstm->mgr.payloads[i];
2829                 NV_ATOMIC(drm, "%s: %d: vcpi %d start 0x%02x slots 0x%02x\n",
2830                           mstm->outp->base.base.name, i, payload->vcpi,
2831                           payload->start_slot, payload->num_slots);
2832         }
2833
2834         for (i = 0; i < mstm->mgr.max_payloads; i++) {
2835                 struct drm_dp_payload *payload = &mstm->mgr.payloads[i];
2836                 if (payload->vcpi == vcpi)
2837                         return payload;
2838         }
2839
2840         return NULL;
2841 }
2842
2843 static void
2844 nv50_msto_cleanup(struct nv50_msto *msto)
2845 {
2846         struct nouveau_drm *drm = nouveau_drm(msto->encoder.dev);
2847         struct nv50_mstc *mstc = msto->mstc;
2848         struct nv50_mstm *mstm = mstc->mstm;
2849
2850         NV_ATOMIC(drm, "%s: msto cleanup\n", msto->encoder.name);
2851         if (mstc->port && mstc->port->vcpi.vcpi > 0 && !nv50_msto_payload(msto))
2852                 drm_dp_mst_deallocate_vcpi(&mstm->mgr, mstc->port);
2853         if (msto->disabled) {
2854                 msto->mstc = NULL;
2855                 msto->head = NULL;
2856                 msto->disabled = false;
2857         }
2858 }
2859
2860 static void
2861 nv50_msto_prepare(struct nv50_msto *msto)
2862 {
2863         struct nouveau_drm *drm = nouveau_drm(msto->encoder.dev);
2864         struct nv50_mstc *mstc = msto->mstc;
2865         struct nv50_mstm *mstm = mstc->mstm;
2866         struct {
2867                 struct nv50_disp_mthd_v1 base;
2868                 struct nv50_disp_sor_dp_mst_vcpi_v0 vcpi;
2869         } args = {
2870                 .base.version = 1,
2871                 .base.method = NV50_DISP_MTHD_V1_SOR_DP_MST_VCPI,
2872                 .base.hasht  = mstm->outp->dcb->hasht,
2873                 .base.hashm  = (0xf0ff & mstm->outp->dcb->hashm) |
2874                                (0x0100 << msto->head->base.index),
2875         };
2876
2877         NV_ATOMIC(drm, "%s: msto prepare\n", msto->encoder.name);
2878         if (mstc->port && mstc->port->vcpi.vcpi > 0) {
2879                 struct drm_dp_payload *payload = nv50_msto_payload(msto);
2880                 if (payload) {
2881                         args.vcpi.start_slot = payload->start_slot;
2882                         args.vcpi.num_slots = payload->num_slots;
2883                         args.vcpi.pbn = mstc->port->vcpi.pbn;
2884                         args.vcpi.aligned_pbn = mstc->port->vcpi.aligned_pbn;
2885                 }
2886         }
2887
2888         NV_ATOMIC(drm, "%s: %s: %02x %02x %04x %04x\n",
2889                   msto->encoder.name, msto->head->base.base.name,
2890                   args.vcpi.start_slot, args.vcpi.num_slots,
2891                   args.vcpi.pbn, args.vcpi.aligned_pbn);
2892         nvif_mthd(&drm->display->disp, 0, &args, sizeof(args));
2893 }
2894
2895 static int
2896 nv50_msto_atomic_check(struct drm_encoder *encoder,
2897                        struct drm_crtc_state *crtc_state,
2898                        struct drm_connector_state *conn_state)
2899 {
2900         struct nv50_mstc *mstc = nv50_mstc(conn_state->connector);
2901         struct nv50_mstm *mstm = mstc->mstm;
2902         int bpp = conn_state->connector->display_info.bpc * 3;
2903         int slots;
2904
2905         mstc->pbn = drm_dp_calc_pbn_mode(crtc_state->adjusted_mode.clock, bpp);
2906
2907         slots = drm_dp_find_vcpi_slots(&mstm->mgr, mstc->pbn);
2908         if (slots < 0)
2909                 return slots;
2910
2911         return nv50_outp_atomic_check_view(encoder, crtc_state, conn_state,
2912                                            mstc->native);
2913 }
2914
2915 static void
2916 nv50_msto_enable(struct drm_encoder *encoder)
2917 {
2918         struct nv50_head *head = nv50_head(encoder->crtc);
2919         struct nv50_msto *msto = nv50_msto(encoder);
2920         struct nv50_mstc *mstc = NULL;
2921         struct nv50_mstm *mstm = NULL;
2922         struct drm_connector *connector;
2923         struct drm_connector_list_iter conn_iter;
2924         u8 proto, depth;
2925         int slots;
2926         bool r;
2927
2928         drm_connector_list_iter_begin(encoder->dev, &conn_iter);
2929         drm_for_each_connector_iter(connector, &conn_iter) {
2930                 if (connector->state->best_encoder == &msto->encoder) {
2931                         mstc = nv50_mstc(connector);
2932                         mstm = mstc->mstm;
2933                         break;
2934                 }
2935         }
2936         drm_connector_list_iter_end(&conn_iter);
2937
2938         if (WARN_ON(!mstc))
2939                 return;
2940
2941         slots = drm_dp_find_vcpi_slots(&mstm->mgr, mstc->pbn);
2942         r = drm_dp_mst_allocate_vcpi(&mstm->mgr, mstc->port, mstc->pbn, slots);
2943         WARN_ON(!r);
2944
2945         if (!mstm->links++)
2946                 nv50_outp_acquire(mstm->outp);
2947
2948         if (mstm->outp->link & 1)
2949                 proto = 0x8;
2950         else
2951                 proto = 0x9;
2952
2953         switch (mstc->connector.display_info.bpc) {
2954         case  6: depth = 0x2; break;
2955         case  8: depth = 0x5; break;
2956         case 10:
2957         default: depth = 0x6; break;
2958         }
2959
2960         mstm->outp->update(mstm->outp, head->base.index,
2961                            &head->base.base.state->adjusted_mode, proto, depth);
2962
2963         msto->head = head;
2964         msto->mstc = mstc;
2965         mstm->modified = true;
2966 }
2967
2968 static void
2969 nv50_msto_disable(struct drm_encoder *encoder)
2970 {
2971         struct nv50_msto *msto = nv50_msto(encoder);
2972         struct nv50_mstc *mstc = msto->mstc;
2973         struct nv50_mstm *mstm = mstc->mstm;
2974
2975         if (mstc->port)
2976                 drm_dp_mst_reset_vcpi_slots(&mstm->mgr, mstc->port);
2977
2978         mstm->outp->update(mstm->outp, msto->head->base.index, NULL, 0, 0);
2979         mstm->modified = true;
2980         if (!--mstm->links)
2981                 mstm->disabled = true;
2982         msto->disabled = true;
2983 }
2984
2985 static const struct drm_encoder_helper_funcs
2986 nv50_msto_help = {
2987         .disable = nv50_msto_disable,
2988         .enable = nv50_msto_enable,
2989         .atomic_check = nv50_msto_atomic_check,
2990 };
2991
2992 static void
2993 nv50_msto_destroy(struct drm_encoder *encoder)
2994 {
2995         struct nv50_msto *msto = nv50_msto(encoder);
2996         drm_encoder_cleanup(&msto->encoder);
2997         kfree(msto);
2998 }
2999
3000 static const struct drm_encoder_funcs
3001 nv50_msto = {
3002         .destroy = nv50_msto_destroy,
3003 };
3004
3005 static int
3006 nv50_msto_new(struct drm_device *dev, u32 heads, const char *name, int id,
3007               struct nv50_msto **pmsto)
3008 {
3009         struct nv50_msto *msto;
3010         int ret;
3011
3012         if (!(msto = *pmsto = kzalloc(sizeof(*msto), GFP_KERNEL)))
3013                 return -ENOMEM;
3014
3015         ret = drm_encoder_init(dev, &msto->encoder, &nv50_msto,
3016                                DRM_MODE_ENCODER_DPMST, "%s-mst-%d", name, id);
3017         if (ret) {
3018                 kfree(*pmsto);
3019                 *pmsto = NULL;
3020                 return ret;
3021         }
3022
3023         drm_encoder_helper_add(&msto->encoder, &nv50_msto_help);
3024         msto->encoder.possible_crtcs = heads;
3025         return 0;
3026 }
3027
3028 static struct drm_encoder *
3029 nv50_mstc_atomic_best_encoder(struct drm_connector *connector,
3030                               struct drm_connector_state *connector_state)
3031 {
3032         struct nv50_head *head = nv50_head(connector_state->crtc);
3033         struct nv50_mstc *mstc = nv50_mstc(connector);
3034         if (mstc->port) {
3035                 struct nv50_mstm *mstm = mstc->mstm;
3036                 return &mstm->msto[head->base.index]->encoder;
3037         }
3038         return NULL;
3039 }
3040
3041 static struct drm_encoder *
3042 nv50_mstc_best_encoder(struct drm_connector *connector)
3043 {
3044         struct nv50_mstc *mstc = nv50_mstc(connector);
3045         if (mstc->port) {
3046                 struct nv50_mstm *mstm = mstc->mstm;
3047                 return &mstm->msto[0]->encoder;
3048         }
3049         return NULL;
3050 }
3051
3052 static enum drm_mode_status
3053 nv50_mstc_mode_valid(struct drm_connector *connector,
3054                      struct drm_display_mode *mode)
3055 {
3056         return MODE_OK;
3057 }
3058
3059 static int
3060 nv50_mstc_get_modes(struct drm_connector *connector)
3061 {
3062         struct nv50_mstc *mstc = nv50_mstc(connector);
3063         int ret = 0;
3064
3065         mstc->edid = drm_dp_mst_get_edid(&mstc->connector, mstc->port->mgr, mstc->port);
3066         drm_mode_connector_update_edid_property(&mstc->connector, mstc->edid);
3067         if (mstc->edid) {
3068                 ret = drm_add_edid_modes(&mstc->connector, mstc->edid);
3069                 drm_edid_to_eld(&mstc->connector, mstc->edid);
3070         }
3071
3072         if (!mstc->connector.display_info.bpc)
3073                 mstc->connector.display_info.bpc = 8;
3074
3075         if (mstc->native)
3076                 drm_mode_destroy(mstc->connector.dev, mstc->native);
3077         mstc->native = nouveau_conn_native_mode(&mstc->connector);
3078         return ret;
3079 }
3080
3081 static const struct drm_connector_helper_funcs
3082 nv50_mstc_help = {
3083         .get_modes = nv50_mstc_get_modes,
3084         .mode_valid = nv50_mstc_mode_valid,
3085         .best_encoder = nv50_mstc_best_encoder,
3086         .atomic_best_encoder = nv50_mstc_atomic_best_encoder,
3087 };
3088
3089 static enum drm_connector_status
3090 nv50_mstc_detect(struct drm_connector *connector, bool force)
3091 {
3092         struct nv50_mstc *mstc = nv50_mstc(connector);
3093         if (!mstc->port)
3094                 return connector_status_disconnected;
3095         return drm_dp_mst_detect_port(connector, mstc->port->mgr, mstc->port);
3096 }
3097
3098 static void
3099 nv50_mstc_destroy(struct drm_connector *connector)
3100 {
3101         struct nv50_mstc *mstc = nv50_mstc(connector);
3102         drm_connector_cleanup(&mstc->connector);
3103         kfree(mstc);
3104 }
3105
3106 static const struct drm_connector_funcs
3107 nv50_mstc = {
3108         .reset = nouveau_conn_reset,
3109         .detect = nv50_mstc_detect,
3110         .fill_modes = drm_helper_probe_single_connector_modes,
3111         .destroy = nv50_mstc_destroy,
3112         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
3113         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
3114         .atomic_set_property = nouveau_conn_atomic_set_property,
3115         .atomic_get_property = nouveau_conn_atomic_get_property,
3116 };
3117
3118 static int
3119 nv50_mstc_new(struct nv50_mstm *mstm, struct drm_dp_mst_port *port,
3120               const char *path, struct nv50_mstc **pmstc)
3121 {
3122         struct drm_device *dev = mstm->outp->base.base.dev;
3123         struct nv50_mstc *mstc;
3124         int ret, i;
3125
3126         if (!(mstc = *pmstc = kzalloc(sizeof(*mstc), GFP_KERNEL)))
3127                 return -ENOMEM;
3128         mstc->mstm = mstm;
3129         mstc->port = port;
3130
3131         ret = drm_connector_init(dev, &mstc->connector, &nv50_mstc,
3132                                  DRM_MODE_CONNECTOR_DisplayPort);
3133         if (ret) {
3134                 kfree(*pmstc);
3135                 *pmstc = NULL;
3136                 return ret;
3137         }
3138
3139         drm_connector_helper_add(&mstc->connector, &nv50_mstc_help);
3140
3141         mstc->connector.funcs->reset(&mstc->connector);
3142         nouveau_conn_attach_properties(&mstc->connector);
3143
3144         for (i = 0; i < ARRAY_SIZE(mstm->msto) && mstm->msto[i]; i++)
3145                 drm_mode_connector_attach_encoder(&mstc->connector, &mstm->msto[i]->encoder);
3146
3147         drm_object_attach_property(&mstc->connector.base, dev->mode_config.path_property, 0);
3148         drm_object_attach_property(&mstc->connector.base, dev->mode_config.tile_property, 0);
3149         drm_mode_connector_set_path_property(&mstc->connector, path);
3150         return 0;
3151 }
3152
3153 static void
3154 nv50_mstm_cleanup(struct nv50_mstm *mstm)
3155 {
3156         struct nouveau_drm *drm = nouveau_drm(mstm->outp->base.base.dev);
3157         struct drm_encoder *encoder;
3158         int ret;
3159
3160         NV_ATOMIC(drm, "%s: mstm cleanup\n", mstm->outp->base.base.name);
3161         ret = drm_dp_check_act_status(&mstm->mgr);
3162
3163         ret = drm_dp_update_payload_part2(&mstm->mgr);
3164
3165         drm_for_each_encoder(encoder, mstm->outp->base.base.dev) {
3166                 if (encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
3167                         struct nv50_msto *msto = nv50_msto(encoder);
3168                         struct nv50_mstc *mstc = msto->mstc;
3169                         if (mstc && mstc->mstm == mstm)
3170                                 nv50_msto_cleanup(msto);
3171                 }
3172         }
3173
3174         mstm->modified = false;
3175 }
3176
3177 static void
3178 nv50_mstm_prepare(struct nv50_mstm *mstm)
3179 {
3180         struct nouveau_drm *drm = nouveau_drm(mstm->outp->base.base.dev);
3181         struct drm_encoder *encoder;
3182         int ret;
3183
3184         NV_ATOMIC(drm, "%s: mstm prepare\n", mstm->outp->base.base.name);
3185         ret = drm_dp_update_payload_part1(&mstm->mgr);
3186
3187         drm_for_each_encoder(encoder, mstm->outp->base.base.dev) {
3188                 if (encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
3189                         struct nv50_msto *msto = nv50_msto(encoder);
3190                         struct nv50_mstc *mstc = msto->mstc;
3191                         if (mstc && mstc->mstm == mstm)
3192                                 nv50_msto_prepare(msto);
3193                 }
3194         }
3195
3196         if (mstm->disabled) {
3197                 if (!mstm->links)
3198                         nv50_outp_release(mstm->outp);
3199                 mstm->disabled = false;
3200         }
3201 }
3202
3203 static void
3204 nv50_mstm_hotplug(struct drm_dp_mst_topology_mgr *mgr)
3205 {
3206         struct nv50_mstm *mstm = nv50_mstm(mgr);
3207         drm_kms_helper_hotplug_event(mstm->outp->base.base.dev);
3208 }
3209
3210 static void
3211 nv50_mstm_destroy_connector(struct drm_dp_mst_topology_mgr *mgr,
3212                             struct drm_connector *connector)
3213 {
3214         struct nouveau_drm *drm = nouveau_drm(connector->dev);
3215         struct nv50_mstc *mstc = nv50_mstc(connector);
3216
3217         drm_connector_unregister(&mstc->connector);
3218
3219         drm_modeset_lock_all(drm->dev);
3220         drm_fb_helper_remove_one_connector(&drm->fbcon->helper, &mstc->connector);
3221         mstc->port = NULL;
3222         drm_modeset_unlock_all(drm->dev);
3223
3224         drm_connector_unreference(&mstc->connector);
3225 }
3226
3227 static void
3228 nv50_mstm_register_connector(struct drm_connector *connector)
3229 {
3230         struct nouveau_drm *drm = nouveau_drm(connector->dev);
3231
3232         drm_modeset_lock_all(drm->dev);
3233         drm_fb_helper_add_one_connector(&drm->fbcon->helper, connector);
3234         drm_modeset_unlock_all(drm->dev);
3235
3236         drm_connector_register(connector);
3237 }
3238
3239 static struct drm_connector *
3240 nv50_mstm_add_connector(struct drm_dp_mst_topology_mgr *mgr,
3241                         struct drm_dp_mst_port *port, const char *path)
3242 {
3243         struct nv50_mstm *mstm = nv50_mstm(mgr);
3244         struct nv50_mstc *mstc;
3245         int ret;
3246
3247         ret = nv50_mstc_new(mstm, port, path, &mstc);
3248         if (ret) {
3249                 if (mstc)
3250                         mstc->connector.funcs->destroy(&mstc->connector);
3251                 return NULL;
3252         }
3253
3254         return &mstc->connector;
3255 }
3256
3257 static const struct drm_dp_mst_topology_cbs
3258 nv50_mstm = {
3259         .add_connector = nv50_mstm_add_connector,
3260         .register_connector = nv50_mstm_register_connector,
3261         .destroy_connector = nv50_mstm_destroy_connector,
3262         .hotplug = nv50_mstm_hotplug,
3263 };
3264
3265 void
3266 nv50_mstm_service(struct nv50_mstm *mstm)
3267 {
3268         struct drm_dp_aux *aux = mstm ? mstm->mgr.aux : NULL;
3269         bool handled = true;
3270         int ret;
3271         u8 esi[8] = {};
3272
3273         if (!aux)
3274                 return;
3275
3276         while (handled) {
3277                 ret = drm_dp_dpcd_read(aux, DP_SINK_COUNT_ESI, esi, 8);
3278                 if (ret != 8) {
3279                         drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
3280                         return;
3281                 }
3282
3283                 drm_dp_mst_hpd_irq(&mstm->mgr, esi, &handled);
3284                 if (!handled)
3285                         break;
3286
3287                 drm_dp_dpcd_write(aux, DP_SINK_COUNT_ESI + 1, &esi[1], 3);
3288         }
3289 }
3290
3291 void
3292 nv50_mstm_remove(struct nv50_mstm *mstm)
3293 {
3294         if (mstm)
3295                 drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, false);
3296 }
3297
3298 static int
3299 nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state)
3300 {
3301         struct nouveau_encoder *outp = mstm->outp;
3302         struct {
3303                 struct nv50_disp_mthd_v1 base;
3304                 struct nv50_disp_sor_dp_mst_link_v0 mst;
3305         } args = {
3306                 .base.version = 1,
3307                 .base.method = NV50_DISP_MTHD_V1_SOR_DP_MST_LINK,
3308                 .base.hasht = outp->dcb->hasht,
3309                 .base.hashm = outp->dcb->hashm,
3310                 .mst.state = state,
3311         };
3312         struct nouveau_drm *drm = nouveau_drm(outp->base.base.dev);
3313         struct nvif_object *disp = &drm->display->disp;
3314         int ret;
3315
3316         if (dpcd >= 0x12) {
3317                 ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CTRL, &dpcd);
3318                 if (ret < 0)
3319                         return ret;
3320
3321                 dpcd &= ~DP_MST_EN;
3322                 if (state)
3323                         dpcd |= DP_MST_EN;
3324
3325                 ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, dpcd);
3326                 if (ret < 0)
3327                         return ret;
3328         }
3329
3330         return nvif_mthd(disp, 0, &args, sizeof(args));
3331 }
3332
3333 int
3334 nv50_mstm_detect(struct nv50_mstm *mstm, u8 dpcd[8], int allow)
3335 {
3336         int ret, state = 0;
3337
3338         if (!mstm)
3339                 return 0;
3340
3341         if (dpcd[0] >= 0x12) {
3342                 ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CAP, &dpcd[1]);
3343                 if (ret < 0)
3344                         return ret;
3345
3346                 if (!(dpcd[1] & DP_MST_CAP))
3347                         dpcd[0] = 0x11;
3348                 else
3349                         state = allow;
3350         }
3351
3352         ret = nv50_mstm_enable(mstm, dpcd[0], state);
3353         if (ret)
3354                 return ret;
3355
3356         ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, state);
3357         if (ret)
3358                 return nv50_mstm_enable(mstm, dpcd[0], 0);
3359
3360         return mstm->mgr.mst_state;
3361 }
3362
3363 static void
3364 nv50_mstm_fini(struct nv50_mstm *mstm)
3365 {
3366         if (mstm && mstm->mgr.mst_state)
3367                 drm_dp_mst_topology_mgr_suspend(&mstm->mgr);
3368 }
3369
3370 static void
3371 nv50_mstm_init(struct nv50_mstm *mstm)
3372 {
3373         if (mstm && mstm->mgr.mst_state)
3374                 drm_dp_mst_topology_mgr_resume(&mstm->mgr);
3375 }
3376
3377 static void
3378 nv50_mstm_del(struct nv50_mstm **pmstm)
3379 {
3380         struct nv50_mstm *mstm = *pmstm;
3381         if (mstm) {
3382                 kfree(*pmstm);
3383                 *pmstm = NULL;
3384         }
3385 }
3386
3387 static int
3388 nv50_mstm_new(struct nouveau_encoder *outp, struct drm_dp_aux *aux, int aux_max,
3389               int conn_base_id, struct nv50_mstm **pmstm)
3390 {
3391         const int max_payloads = hweight8(outp->dcb->heads);
3392         struct drm_device *dev = outp->base.base.dev;
3393         struct nv50_mstm *mstm;
3394         int ret, i;
3395         u8 dpcd;
3396
3397         /* This is a workaround for some monitors not functioning
3398          * correctly in MST mode on initial module load.  I think
3399          * some bad interaction with the VBIOS may be responsible.
3400          *
3401          * A good ol' off and on again seems to work here ;)
3402          */
3403         ret = drm_dp_dpcd_readb(aux, DP_DPCD_REV, &dpcd);
3404         if (ret >= 0 && dpcd >= 0x12)
3405                 drm_dp_dpcd_writeb(aux, DP_MSTM_CTRL, 0);
3406
3407         if (!(mstm = *pmstm = kzalloc(sizeof(*mstm), GFP_KERNEL)))
3408                 return -ENOMEM;
3409         mstm->outp = outp;
3410         mstm->mgr.cbs = &nv50_mstm;
3411
3412         ret = drm_dp_mst_topology_mgr_init(&mstm->mgr, dev, aux, aux_max,
3413                                            max_payloads, conn_base_id);
3414         if (ret)
3415                 return ret;
3416
3417         for (i = 0; i < max_payloads; i++) {
3418                 ret = nv50_msto_new(dev, outp->dcb->heads, outp->base.base.name,
3419                                     i, &mstm->msto[i]);
3420                 if (ret)
3421                         return ret;
3422         }
3423
3424         return 0;
3425 }
3426
3427 /******************************************************************************
3428  * SOR
3429  *****************************************************************************/
3430 static void
3431 nv50_sor_update(struct nouveau_encoder *nv_encoder, u8 head,
3432                 struct drm_display_mode *mode, u8 proto, u8 depth)
3433 {
3434         struct nv50_dmac *core = &nv50_mast(nv_encoder->base.base.dev)->base;
3435         u32 *push;
3436
3437         if (!mode) {
3438                 nv_encoder->ctrl &= ~BIT(head);
3439                 if (!(nv_encoder->ctrl & 0x0000000f))
3440                         nv_encoder->ctrl = 0;
3441         } else {
3442                 nv_encoder->ctrl |= proto << 8;
3443                 nv_encoder->ctrl |= BIT(head);
3444         }
3445
3446         if ((push = evo_wait(core, 6))) {
3447                 if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
3448                         if (mode) {
3449                                 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
3450                                         nv_encoder->ctrl |= 0x00001000;
3451                                 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
3452                                         nv_encoder->ctrl |= 0x00002000;
3453                                 nv_encoder->ctrl |= depth << 16;
3454                         }
3455                         evo_mthd(push, 0x0600 + (nv_encoder->or * 0x40), 1);
3456                 } else {
3457                         if (mode) {
3458                                 u32 magic = 0x31ec6000 | (head << 25);
3459                                 u32 syncs = 0x00000001;
3460                                 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
3461                                         syncs |= 0x00000008;
3462                                 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
3463                                         syncs |= 0x00000010;
3464                                 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
3465                                         magic |= 0x00000001;
3466
3467                                 evo_mthd(push, 0x0404 + (head * 0x300), 2);
3468                                 evo_data(push, syncs | (depth << 6));
3469                                 evo_data(push, magic);
3470                         }
3471                         evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 1);
3472                 }
3473                 evo_data(push, nv_encoder->ctrl);
3474                 evo_kick(push, core);
3475         }
3476 }
3477
3478 static void
3479 nv50_sor_disable(struct drm_encoder *encoder)
3480 {
3481         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
3482         struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
3483
3484         nv_encoder->crtc = NULL;
3485
3486         if (nv_crtc) {
3487                 struct nvkm_i2c_aux *aux = nv_encoder->aux;
3488                 u8 pwr;
3489
3490                 if (aux) {
3491                         int ret = nvkm_rdaux(aux, DP_SET_POWER, &pwr, 1);
3492                         if (ret == 0) {
3493                                 pwr &= ~DP_SET_POWER_MASK;
3494                                 pwr |=  DP_SET_POWER_D3;
3495                                 nvkm_wraux(aux, DP_SET_POWER, &pwr, 1);
3496                         }
3497                 }
3498
3499                 nv_encoder->update(nv_encoder, nv_crtc->index, NULL, 0, 0);
3500                 nv50_audio_disable(encoder, nv_crtc);
3501                 nv50_hdmi_disable(&nv_encoder->base.base, nv_crtc);
3502                 nv50_outp_release(nv_encoder);
3503         }
3504 }
3505
3506 static void
3507 nv50_sor_enable(struct drm_encoder *encoder)
3508 {
3509         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
3510         struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
3511         struct drm_display_mode *mode = &nv_crtc->base.state->adjusted_mode;
3512         struct {
3513                 struct nv50_disp_mthd_v1 base;
3514                 struct nv50_disp_sor_lvds_script_v0 lvds;
3515         } lvds = {
3516                 .base.version = 1,
3517                 .base.method  = NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT,
3518                 .base.hasht   = nv_encoder->dcb->hasht,
3519                 .base.hashm   = nv_encoder->dcb->hashm,
3520         };
3521         struct nv50_disp *disp = nv50_disp(encoder->dev);
3522         struct drm_device *dev = encoder->dev;
3523         struct nouveau_drm *drm = nouveau_drm(dev);
3524         struct nouveau_connector *nv_connector;
3525         struct nvbios *bios = &drm->vbios;
3526         u8 proto = 0xf;
3527         u8 depth = 0x0;
3528
3529         nv_connector = nouveau_encoder_connector_get(nv_encoder);
3530         nv_encoder->crtc = encoder->crtc;
3531         nv50_outp_acquire(nv_encoder);
3532
3533         switch (nv_encoder->dcb->type) {
3534         case DCB_OUTPUT_TMDS:
3535                 if (nv_encoder->link & 1) {
3536                         proto = 0x1;
3537                         /* Only enable dual-link if:
3538                          *  - Need to (i.e. rate > 165MHz)
3539                          *  - DCB says we can
3540                          *  - Not an HDMI monitor, since there's no dual-link
3541                          *    on HDMI.
3542                          */
3543                         if (mode->clock >= 165000 &&
3544                             nv_encoder->dcb->duallink_possible &&
3545                             !drm_detect_hdmi_monitor(nv_connector->edid))
3546                                 proto |= 0x4;
3547                 } else {
3548                         proto = 0x2;
3549                 }
3550
3551                 nv50_hdmi_enable(&nv_encoder->base.base, mode);
3552                 break;
3553         case DCB_OUTPUT_LVDS:
3554                 proto = 0x0;
3555
3556                 if (bios->fp_no_ddc) {
3557                         if (bios->fp.dual_link)
3558                                 lvds.lvds.script |= 0x0100;
3559                         if (bios->fp.if_is_24bit)
3560                                 lvds.lvds.script |= 0x0200;
3561                 } else {
3562                         if (nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
3563                                 if (((u8 *)nv_connector->edid)[121] == 2)
3564                                         lvds.lvds.script |= 0x0100;
3565                         } else
3566                         if (mode->clock >= bios->fp.duallink_transition_clk) {
3567                                 lvds.lvds.script |= 0x0100;
3568                         }
3569
3570                         if (lvds.lvds.script & 0x0100) {
3571                                 if (bios->fp.strapless_is_24bit & 2)
3572                                         lvds.lvds.script |= 0x0200;
3573                         } else {
3574                                 if (bios->fp.strapless_is_24bit & 1)
3575                                         lvds.lvds.script |= 0x0200;
3576                         }
3577
3578                         if (nv_connector->base.display_info.bpc == 8)
3579                                 lvds.lvds.script |= 0x0200;
3580                 }
3581
3582                 nvif_mthd(disp->disp, 0, &lvds, sizeof(lvds));
3583                 break;
3584         case DCB_OUTPUT_DP:
3585                 if (nv_connector->base.display_info.bpc == 6)
3586                         depth = 0x2;
3587                 else
3588                 if (nv_connector->base.display_info.bpc == 8)
3589                         depth = 0x5;
3590                 else
3591                         depth = 0x6;
3592
3593                 if (nv_encoder->link & 1)
3594                         proto = 0x8;
3595                 else
3596                         proto = 0x9;
3597
3598                 nv50_audio_enable(encoder, mode);
3599                 break;
3600         default:
3601                 BUG();
3602                 break;
3603         }
3604
3605         nv_encoder->update(nv_encoder, nv_crtc->index, mode, proto, depth);
3606 }
3607
3608 static const struct drm_encoder_helper_funcs
3609 nv50_sor_help = {
3610         .atomic_check = nv50_outp_atomic_check,
3611         .enable = nv50_sor_enable,
3612         .disable = nv50_sor_disable,
3613 };
3614
3615 static void
3616 nv50_sor_destroy(struct drm_encoder *encoder)
3617 {
3618         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
3619         nv50_mstm_del(&nv_encoder->dp.mstm);
3620         drm_encoder_cleanup(encoder);
3621         kfree(encoder);
3622 }
3623
3624 static const struct drm_encoder_funcs
3625 nv50_sor_func = {
3626         .destroy = nv50_sor_destroy,
3627 };
3628
3629 static int
3630 nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
3631 {
3632         struct nouveau_connector *nv_connector = nouveau_connector(connector);
3633         struct nouveau_drm *drm = nouveau_drm(connector->dev);
3634         struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device);
3635         struct nouveau_encoder *nv_encoder;
3636         struct drm_encoder *encoder;
3637         int type, ret;
3638
3639         switch (dcbe->type) {
3640         case DCB_OUTPUT_LVDS: type = DRM_MODE_ENCODER_LVDS; break;
3641         case DCB_OUTPUT_TMDS:
3642         case DCB_OUTPUT_DP:
3643         default:
3644                 type = DRM_MODE_ENCODER_TMDS;
3645                 break;
3646         }
3647
3648         nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
3649         if (!nv_encoder)
3650                 return -ENOMEM;
3651         nv_encoder->dcb = dcbe;
3652         nv_encoder->update = nv50_sor_update;
3653
3654         encoder = to_drm_encoder(nv_encoder);
3655         encoder->possible_crtcs = dcbe->heads;
3656         encoder->possible_clones = 0;
3657         drm_encoder_init(connector->dev, encoder, &nv50_sor_func, type,
3658                          "sor-%04x-%04x", dcbe->hasht, dcbe->hashm);
3659         drm_encoder_helper_add(encoder, &nv50_sor_help);
3660
3661         drm_mode_connector_attach_encoder(connector, encoder);
3662
3663         if (dcbe->type == DCB_OUTPUT_DP) {
3664                 struct nv50_disp *disp = nv50_disp(encoder->dev);
3665                 struct nvkm_i2c_aux *aux =
3666                         nvkm_i2c_aux_find(i2c, dcbe->i2c_index);
3667                 if (aux) {
3668                         if (disp->disp->oclass < GF110_DISP) {
3669                                 /* HW has no support for address-only
3670                                  * transactions, so we're required to
3671                                  * use custom I2C-over-AUX code.
3672                                  */
3673                                 nv_encoder->i2c = &aux->i2c;
3674                         } else {
3675                                 nv_encoder->i2c = &nv_connector->aux.ddc;
3676                         }
3677                         nv_encoder->aux = aux;
3678                 }
3679
3680                 /*TODO: Use DP Info Table to check for support. */
3681                 if (disp->disp->oclass >= GF110_DISP) {
3682                         ret = nv50_mstm_new(nv_encoder, &nv_connector->aux, 16,
3683                                             nv_connector->base.base.id,
3684                                             &nv_encoder->dp.mstm);
3685                         if (ret)
3686                                 return ret;
3687                 }
3688         } else {
3689                 struct nvkm_i2c_bus *bus =
3690                         nvkm_i2c_bus_find(i2c, dcbe->i2c_index);
3691                 if (bus)
3692                         nv_encoder->i2c = &bus->i2c;
3693         }
3694
3695         return 0;
3696 }
3697
3698 /******************************************************************************
3699  * PIOR
3700  *****************************************************************************/
3701 static int
3702 nv50_pior_atomic_check(struct drm_encoder *encoder,
3703                        struct drm_crtc_state *crtc_state,
3704                        struct drm_connector_state *conn_state)
3705 {
3706         int ret = nv50_outp_atomic_check(encoder, crtc_state, conn_state);
3707         if (ret)
3708                 return ret;
3709         crtc_state->adjusted_mode.clock *= 2;
3710         return 0;
3711 }
3712
3713 static void
3714 nv50_pior_disable(struct drm_encoder *encoder)
3715 {
3716         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
3717         struct nv50_mast *mast = nv50_mast(encoder->dev);
3718         const int or = nv_encoder->or;
3719         u32 *push;
3720
3721         if (nv_encoder->crtc) {
3722                 push = evo_wait(mast, 4);
3723                 if (push) {
3724                         if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
3725                                 evo_mthd(push, 0x0700 + (or * 0x040), 1);
3726                                 evo_data(push, 0x00000000);
3727                         }
3728                         evo_kick(push, mast);
3729                 }
3730         }
3731
3732         nv_encoder->crtc = NULL;
3733         nv50_outp_release(nv_encoder);
3734 }
3735
3736 static void
3737 nv50_pior_enable(struct drm_encoder *encoder)
3738 {
3739         struct nv50_mast *mast = nv50_mast(encoder->dev);
3740         struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
3741         struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
3742         struct nouveau_connector *nv_connector;
3743         struct drm_display_mode *mode = &nv_crtc->base.state->adjusted_mode;
3744         u8 owner = 1 << nv_crtc->index;
3745         u8 proto, depth;
3746         u32 *push;
3747
3748         nv50_outp_acquire(nv_encoder);
3749
3750         nv_connector = nouveau_encoder_connector_get(nv_encoder);
3751         switch (nv_connector->base.display_info.bpc) {
3752         case 10: depth = 0x6; break;
3753         case  8: depth = 0x5; break;
3754         case  6: depth = 0x2; break;
3755         default: depth = 0x0; break;
3756         }
3757
3758         switch (nv_encoder->dcb->type) {
3759         case DCB_OUTPUT_TMDS:
3760         case DCB_OUTPUT_DP:
3761                 proto = 0x0;
3762                 break;
3763         default:
3764                 BUG();
3765                 break;
3766         }
3767
3768         push = evo_wait(mast, 8);
3769         if (push) {
3770                 if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
3771                         u32 ctrl = (depth << 16) | (proto << 8) | owner;
3772                         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
3773                                 ctrl |= 0x00001000;
3774                         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
3775                                 ctrl |= 0x00002000;
3776                         evo_mthd(push, 0x0700 + (nv_encoder->or * 0x040), 1);
3777                         evo_data(push, ctrl);
3778                 }
3779
3780                 evo_kick(push, mast);
3781         }
3782
3783         nv_encoder->crtc = encoder->crtc;
3784 }
3785
3786 static const struct drm_encoder_helper_funcs
3787 nv50_pior_help = {
3788         .atomic_check = nv50_pior_atomic_check,
3789         .enable = nv50_pior_enable,
3790         .disable = nv50_pior_disable,
3791 };
3792
3793 static void
3794 nv50_pior_destroy(struct drm_encoder *encoder)
3795 {
3796         drm_encoder_cleanup(encoder);
3797         kfree(encoder);
3798 }
3799
3800 static const struct drm_encoder_funcs
3801 nv50_pior_func = {
3802         .destroy = nv50_pior_destroy,
3803 };
3804
3805 static int
3806 nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
3807 {
3808         struct nouveau_connector *nv_connector = nouveau_connector(connector);
3809         struct nouveau_drm *drm = nouveau_drm(connector->dev);
3810         struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device);
3811         struct nvkm_i2c_bus *bus = NULL;
3812         struct nvkm_i2c_aux *aux = NULL;
3813         struct i2c_adapter *ddc;
3814         struct nouveau_encoder *nv_encoder;
3815         struct drm_encoder *encoder;
3816         int type;
3817
3818         switch (dcbe->type) {
3819         case DCB_OUTPUT_TMDS:
3820                 bus  = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_EXT(dcbe->extdev));
3821                 ddc  = bus ? &bus->i2c : NULL;
3822                 type = DRM_MODE_ENCODER_TMDS;
3823                 break;
3824         case DCB_OUTPUT_DP:
3825                 aux  = nvkm_i2c_aux_find(i2c, NVKM_I2C_AUX_EXT(dcbe->extdev));
3826                 ddc  = aux ? &nv_connector->aux.ddc : NULL;
3827                 type = DRM_MODE_ENCODER_TMDS;
3828                 break;
3829         default:
3830                 return -ENODEV;
3831         }
3832
3833         nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
3834         if (!nv_encoder)
3835                 return -ENOMEM;
3836         nv_encoder->dcb = dcbe;
3837         nv_encoder->i2c = ddc;
3838         nv_encoder->aux = aux;
3839
3840         encoder = to_drm_encoder(nv_encoder);
3841         encoder->possible_crtcs = dcbe->heads;
3842         encoder->possible_clones = 0;
3843         drm_encoder_init(connector->dev, encoder, &nv50_pior_func, type,
3844                          "pior-%04x-%04x", dcbe->hasht, dcbe->hashm);
3845         drm_encoder_helper_add(encoder, &nv50_pior_help);
3846
3847         drm_mode_connector_attach_encoder(connector, encoder);
3848         return 0;
3849 }
3850
3851 /******************************************************************************
3852  * Atomic
3853  *****************************************************************************/
3854
3855 static void
3856 nv50_disp_atomic_commit_core(struct nouveau_drm *drm, u32 interlock)
3857 {
3858         struct nv50_disp *disp = nv50_disp(drm->dev);
3859         struct nv50_dmac *core = &disp->mast.base;
3860         struct nv50_mstm *mstm;
3861         struct drm_encoder *encoder;
3862         u32 *push;
3863
3864         NV_ATOMIC(drm, "commit core %08x\n", interlock);
3865
3866         drm_for_each_encoder(encoder, drm->dev) {
3867                 if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
3868                         mstm = nouveau_encoder(encoder)->dp.mstm;
3869                         if (mstm && mstm->modified)
3870                                 nv50_mstm_prepare(mstm);
3871                 }
3872         }
3873
3874         if ((push = evo_wait(core, 5))) {
3875                 evo_mthd(push, 0x0084, 1);
3876                 evo_data(push, 0x80000000);
3877                 evo_mthd(push, 0x0080, 2);
3878                 evo_data(push, interlock);
3879                 evo_data(push, 0x00000000);
3880                 nouveau_bo_wr32(disp->sync, 0, 0x00000000);
3881                 evo_kick(push, core);
3882                 if (nvif_msec(&drm->client.device, 2000ULL,
3883                         if (nouveau_bo_rd32(disp->sync, 0))
3884                                 break;
3885                         usleep_range(1, 2);
3886                 ) < 0)
3887                         NV_ERROR(drm, "EVO timeout\n");
3888         }
3889
3890         drm_for_each_encoder(encoder, drm->dev) {
3891                 if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
3892                         mstm = nouveau_encoder(encoder)->dp.mstm;
3893                         if (mstm && mstm->modified)
3894                                 nv50_mstm_cleanup(mstm);
3895                 }
3896         }
3897 }
3898
3899 static void
3900 nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
3901 {
3902         struct drm_device *dev = state->dev;
3903         struct drm_crtc_state *new_crtc_state, *old_crtc_state;
3904         struct drm_crtc *crtc;
3905         struct drm_plane_state *new_plane_state;
3906         struct drm_plane *plane;
3907         struct nouveau_drm *drm = nouveau_drm(dev);
3908         struct nv50_disp *disp = nv50_disp(dev);
3909         struct nv50_atom *atom = nv50_atom(state);
3910         struct nv50_outp_atom *outp, *outt;
3911         u32 interlock_core = 0;
3912         u32 interlock_chan = 0;
3913         int i;
3914
3915         NV_ATOMIC(drm, "commit %d %d\n", atom->lock_core, atom->flush_disable);
3916         drm_atomic_helper_wait_for_fences(dev, state, false);
3917         drm_atomic_helper_wait_for_dependencies(state);
3918         drm_atomic_helper_update_legacy_modeset_state(dev, state);
3919
3920         if (atom->lock_core)
3921                 mutex_lock(&disp->mutex);
3922
3923         /* Disable head(s). */
3924         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
3925                 struct nv50_head_atom *asyh = nv50_head_atom(new_crtc_state);
3926                 struct nv50_head *head = nv50_head(crtc);
3927
3928                 NV_ATOMIC(drm, "%s: clr %04x (set %04x)\n", crtc->name,
3929                           asyh->clr.mask, asyh->set.mask);
3930                 if (old_crtc_state->active && !new_crtc_state->active)
3931                         drm_crtc_vblank_off(crtc);
3932
3933                 if (asyh->clr.mask) {
3934                         nv50_head_flush_clr(head, asyh, atom->flush_disable);
3935                         interlock_core |= 1;
3936                 }
3937         }
3938
3939         /* Disable plane(s). */
3940         for_each_new_plane_in_state(state, plane, new_plane_state, i) {
3941                 struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
3942                 struct nv50_wndw *wndw = nv50_wndw(plane);
3943
3944                 NV_ATOMIC(drm, "%s: clr %02x (set %02x)\n", plane->name,
3945                           asyw->clr.mask, asyw->set.mask);
3946                 if (!asyw->clr.mask)
3947                         continue;
3948
3949                 interlock_chan |= nv50_wndw_flush_clr(wndw, interlock_core,
3950                                                       atom->flush_disable,
3951                                                       asyw);
3952         }
3953
3954         /* Disable output path(s). */
3955         list_for_each_entry(outp, &atom->outp, head) {
3956                 const struct drm_encoder_helper_funcs *help;
3957                 struct drm_encoder *encoder;
3958
3959                 encoder = outp->encoder;
3960                 help = encoder->helper_private;
3961
3962                 NV_ATOMIC(drm, "%s: clr %02x (set %02x)\n", encoder->name,
3963                           outp->clr.mask, outp->set.mask);
3964
3965                 if (outp->clr.mask) {
3966                         help->disable(encoder);
3967                         interlock_core |= 1;
3968                         if (outp->flush_disable) {
3969                                 nv50_disp_atomic_commit_core(drm, interlock_chan);
3970                                 interlock_core = 0;
3971                                 interlock_chan = 0;
3972                         }
3973                 }
3974         }
3975
3976         /* Flush disable. */
3977         if (interlock_core) {
3978                 if (atom->flush_disable) {
3979                         nv50_disp_atomic_commit_core(drm, interlock_chan);
3980                         interlock_core = 0;
3981                         interlock_chan = 0;
3982                 }
3983         }
3984
3985         /* Update output path(s). */
3986         list_for_each_entry_safe(outp, outt, &atom->outp, head) {
3987                 const struct drm_encoder_helper_funcs *help;
3988                 struct drm_encoder *encoder;
3989
3990                 encoder = outp->encoder;
3991                 help = encoder->helper_private;
3992
3993                 NV_ATOMIC(drm, "%s: set %02x (clr %02x)\n", encoder->name,
3994                           outp->set.mask, outp->clr.mask);
3995
3996                 if (outp->set.mask) {
3997                         help->enable(encoder);
3998                         interlock_core = 1;
3999                 }
4000
4001                 list_del(&outp->head);
4002                 kfree(outp);
4003         }
4004
4005         /* Update head(s). */
4006         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
4007                 struct nv50_head_atom *asyh = nv50_head_atom(new_crtc_state);
4008                 struct nv50_head *head = nv50_head(crtc);
4009
4010                 NV_ATOMIC(drm, "%s: set %04x (clr %04x)\n", crtc->name,
4011                           asyh->set.mask, asyh->clr.mask);
4012
4013                 if (asyh->set.mask) {
4014                         nv50_head_flush_set(head, asyh);
4015                         interlock_core = 1;
4016                 }
4017
4018                 if (new_crtc_state->active) {
4019                         if (!old_crtc_state->active)
4020                                 drm_crtc_vblank_on(crtc);
4021                         if (new_crtc_state->event)
4022                                 drm_crtc_vblank_get(crtc);
4023                 }
4024         }
4025
4026         /* Update plane(s). */
4027         for_each_new_plane_in_state(state, plane, new_plane_state, i) {
4028                 struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
4029                 struct nv50_wndw *wndw = nv50_wndw(plane);
4030
4031                 NV_ATOMIC(drm, "%s: set %02x (clr %02x)\n", plane->name,
4032                           asyw->set.mask, asyw->clr.mask);
4033                 if ( !asyw->set.mask &&
4034                     (!asyw->clr.mask || atom->flush_disable))
4035                         continue;
4036
4037                 interlock_chan |= nv50_wndw_flush_set(wndw, interlock_core, asyw);
4038         }
4039
4040         /* Flush update. */
4041         if (interlock_core) {
4042                 if (!interlock_chan && atom->state.legacy_cursor_update) {
4043                         u32 *push = evo_wait(&disp->mast, 2);
4044                         if (push) {
4045                                 evo_mthd(push, 0x0080, 1);
4046                                 evo_data(push, 0x00000000);
4047                                 evo_kick(push, &disp->mast);
4048                         }
4049                 } else {
4050                         nv50_disp_atomic_commit_core(drm, interlock_chan);
4051                 }
4052         }
4053
4054         if (atom->lock_core)
4055                 mutex_unlock(&disp->mutex);
4056
4057         /* Wait for HW to signal completion. */
4058         for_each_new_plane_in_state(state, plane, new_plane_state, i) {
4059                 struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
4060                 struct nv50_wndw *wndw = nv50_wndw(plane);
4061                 int ret = nv50_wndw_wait_armed(wndw, asyw);
4062                 if (ret)
4063                         NV_ERROR(drm, "%s: timeout\n", plane->name);
4064         }
4065
4066         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
4067                 if (new_crtc_state->event) {
4068                         unsigned long flags;
4069                         /* Get correct count/ts if racing with vblank irq */
4070                         if (new_crtc_state->active)
4071                                 drm_crtc_accurate_vblank_count(crtc);
4072                         spin_lock_irqsave(&crtc->dev->event_lock, flags);
4073                         drm_crtc_send_vblank_event(crtc, new_crtc_state->event);
4074                         spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
4075
4076                         new_crtc_state->event = NULL;
4077                         if (new_crtc_state->active)
4078                                 drm_crtc_vblank_put(crtc);
4079                 }
4080         }
4081
4082         drm_atomic_helper_commit_hw_done(state);
4083         drm_atomic_helper_cleanup_planes(dev, state);
4084         drm_atomic_helper_commit_cleanup_done(state);
4085         drm_atomic_state_put(state);
4086 }
4087
4088 static void
4089 nv50_disp_atomic_commit_work(struct work_struct *work)
4090 {
4091         struct drm_atomic_state *state =
4092                 container_of(work, typeof(*state), commit_work);
4093         nv50_disp_atomic_commit_tail(state);
4094 }
4095
4096 static int
4097 nv50_disp_atomic_commit(struct drm_device *dev,
4098                         struct drm_atomic_state *state, bool nonblock)
4099 {
4100         struct nouveau_drm *drm = nouveau_drm(dev);
4101         struct nv50_disp *disp = nv50_disp(dev);
4102         struct drm_plane_state *old_plane_state;
4103         struct drm_plane *plane;
4104         struct drm_crtc *crtc;
4105         bool active = false;
4106         int ret, i;
4107
4108         ret = pm_runtime_get_sync(dev->dev);
4109         if (ret < 0 && ret != -EACCES)
4110                 return ret;
4111
4112         ret = drm_atomic_helper_setup_commit(state, nonblock);
4113         if (ret)
4114                 goto done;
4115
4116         INIT_WORK(&state->commit_work, nv50_disp_atomic_commit_work);
4117
4118         ret = drm_atomic_helper_prepare_planes(dev, state);
4119         if (ret)
4120                 goto done;
4121
4122         if (!nonblock) {
4123                 ret = drm_atomic_helper_wait_for_fences(dev, state, true);
4124                 if (ret)
4125                         goto err_cleanup;
4126         }
4127
4128         ret = drm_atomic_helper_swap_state(state, true);
4129         if (ret)
4130                 goto err_cleanup;
4131
4132         for_each_old_plane_in_state(state, plane, old_plane_state, i) {
4133                 struct nv50_wndw_atom *asyw = nv50_wndw_atom(old_plane_state);
4134                 struct nv50_wndw *wndw = nv50_wndw(plane);
4135
4136                 if (asyw->set.image) {
4137                         asyw->ntfy.handle = wndw->dmac->sync.handle;
4138                         asyw->ntfy.offset = wndw->ntfy;
4139                         asyw->ntfy.awaken = false;
4140                         asyw->set.ntfy = true;
4141                         nouveau_bo_wr32(disp->sync, wndw->ntfy / 4, 0x00000000);
4142                         wndw->ntfy ^= 0x10;
4143                 }
4144         }
4145
4146         drm_atomic_state_get(state);
4147
4148         if (nonblock)
4149                 queue_work(system_unbound_wq, &state->commit_work);
4150         else
4151                 nv50_disp_atomic_commit_tail(state);
4152
4153         drm_for_each_crtc(crtc, dev) {
4154                 if (crtc->state->enable) {
4155                         if (!drm->have_disp_power_ref) {
4156                                 drm->have_disp_power_ref = true;
4157                                 return 0;
4158                         }
4159                         active = true;
4160                         break;
4161                 }
4162         }
4163
4164         if (!active && drm->have_disp_power_ref) {
4165                 pm_runtime_put_autosuspend(dev->dev);
4166                 drm->have_disp_power_ref = false;
4167         }
4168
4169 err_cleanup:
4170         if (ret)
4171                 drm_atomic_helper_cleanup_planes(dev, state);
4172 done:
4173         pm_runtime_put_autosuspend(dev->dev);
4174         return ret;
4175 }
4176
4177 static struct nv50_outp_atom *
4178 nv50_disp_outp_atomic_add(struct nv50_atom *atom, struct drm_encoder *encoder)
4179 {
4180         struct nv50_outp_atom *outp;
4181
4182         list_for_each_entry(outp, &atom->outp, head) {
4183                 if (outp->encoder == encoder)
4184                         return outp;
4185         }
4186
4187         outp = kzalloc(sizeof(*outp), GFP_KERNEL);
4188         if (!outp)
4189                 return ERR_PTR(-ENOMEM);
4190
4191         list_add(&outp->head, &atom->outp);
4192         outp->encoder = encoder;
4193         return outp;
4194 }
4195
4196 static int
4197 nv50_disp_outp_atomic_check_clr(struct nv50_atom *atom,
4198                                 struct drm_connector_state *old_connector_state)
4199 {
4200         struct drm_encoder *encoder = old_connector_state->best_encoder;
4201         struct drm_crtc_state *old_crtc_state, *new_crtc_state;
4202         struct drm_crtc *crtc;
4203         struct nv50_outp_atom *outp;
4204
4205         if (!(crtc = old_connector_state->crtc))
4206                 return 0;
4207
4208         old_crtc_state = drm_atomic_get_old_crtc_state(&atom->state, crtc);
4209         new_crtc_state = drm_atomic_get_new_crtc_state(&atom->state, crtc);
4210         if (old_crtc_state->active && drm_atomic_crtc_needs_modeset(new_crtc_state)) {
4211                 outp = nv50_disp_outp_atomic_add(atom, encoder);
4212                 if (IS_ERR(outp))
4213                         return PTR_ERR(outp);
4214
4215                 if (outp->encoder->encoder_type == DRM_MODE_ENCODER_DPMST) {
4216                         outp->flush_disable = true;
4217                         atom->flush_disable = true;
4218                 }
4219                 outp->clr.ctrl = true;
4220                 atom->lock_core = true;
4221         }
4222
4223         return 0;
4224 }
4225
4226 static int
4227 nv50_disp_outp_atomic_check_set(struct nv50_atom *atom,
4228                                 struct drm_connector_state *connector_state)
4229 {
4230         struct drm_encoder *encoder = connector_state->best_encoder;
4231         struct drm_crtc_state *new_crtc_state;
4232         struct drm_crtc *crtc;
4233         struct nv50_outp_atom *outp;
4234
4235         if (!(crtc = connector_state->crtc))
4236                 return 0;
4237
4238         new_crtc_state = drm_atomic_get_new_crtc_state(&atom->state, crtc);
4239         if (new_crtc_state->active && drm_atomic_crtc_needs_modeset(new_crtc_state)) {
4240                 outp = nv50_disp_outp_atomic_add(atom, encoder);
4241                 if (IS_ERR(outp))
4242                         return PTR_ERR(outp);
4243
4244                 outp->set.ctrl = true;
4245                 atom->lock_core = true;
4246         }
4247
4248         return 0;
4249 }
4250
4251 static int
4252 nv50_disp_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
4253 {
4254         struct nv50_atom *atom = nv50_atom(state);
4255         struct drm_connector_state *old_connector_state, *new_connector_state;
4256         struct drm_connector *connector;
4257         int ret, i;
4258
4259         ret = drm_atomic_helper_check(dev, state);
4260         if (ret)
4261                 return ret;
4262
4263         for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i) {
4264                 ret = nv50_disp_outp_atomic_check_clr(atom, old_connector_state);
4265                 if (ret)
4266                         return ret;
4267
4268                 ret = nv50_disp_outp_atomic_check_set(atom, new_connector_state);
4269                 if (ret)
4270                         return ret;
4271         }
4272
4273         return 0;
4274 }
4275
4276 static void
4277 nv50_disp_atomic_state_clear(struct drm_atomic_state *state)
4278 {
4279         struct nv50_atom *atom = nv50_atom(state);
4280         struct nv50_outp_atom *outp, *outt;
4281
4282         list_for_each_entry_safe(outp, outt, &atom->outp, head) {
4283                 list_del(&outp->head);
4284                 kfree(outp);
4285         }
4286
4287         drm_atomic_state_default_clear(state);
4288 }
4289
4290 static void
4291 nv50_disp_atomic_state_free(struct drm_atomic_state *state)
4292 {
4293         struct nv50_atom *atom = nv50_atom(state);
4294         drm_atomic_state_default_release(&atom->state);
4295         kfree(atom);
4296 }
4297
4298 static struct drm_atomic_state *
4299 nv50_disp_atomic_state_alloc(struct drm_device *dev)
4300 {
4301         struct nv50_atom *atom;
4302         if (!(atom = kzalloc(sizeof(*atom), GFP_KERNEL)) ||
4303             drm_atomic_state_init(dev, &atom->state) < 0) {
4304                 kfree(atom);
4305                 return NULL;
4306         }
4307         INIT_LIST_HEAD(&atom->outp);
4308         return &atom->state;
4309 }
4310
4311 static const struct drm_mode_config_funcs
4312 nv50_disp_func = {
4313         .fb_create = nouveau_user_framebuffer_create,
4314         .output_poll_changed = nouveau_fbcon_output_poll_changed,
4315         .atomic_check = nv50_disp_atomic_check,
4316         .atomic_commit = nv50_disp_atomic_commit,
4317         .atomic_state_alloc = nv50_disp_atomic_state_alloc,
4318         .atomic_state_clear = nv50_disp_atomic_state_clear,
4319         .atomic_state_free = nv50_disp_atomic_state_free,
4320 };
4321
4322 /******************************************************************************
4323  * Init
4324  *****************************************************************************/
4325
4326 void
4327 nv50_display_fini(struct drm_device *dev)
4328 {
4329         struct nouveau_encoder *nv_encoder;
4330         struct drm_encoder *encoder;
4331         struct drm_plane *plane;
4332
4333         drm_for_each_plane(plane, dev) {
4334                 struct nv50_wndw *wndw = nv50_wndw(plane);
4335                 if (plane->funcs != &nv50_wndw)
4336                         continue;
4337                 nv50_wndw_fini(wndw);
4338         }
4339
4340         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
4341                 if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
4342                         nv_encoder = nouveau_encoder(encoder);
4343                         nv50_mstm_fini(nv_encoder->dp.mstm);
4344                 }
4345         }
4346 }
4347
4348 int
4349 nv50_display_init(struct drm_device *dev)
4350 {
4351         struct drm_encoder *encoder;
4352         struct drm_plane *plane;
4353         struct drm_crtc *crtc;
4354         u32 *push;
4355
4356         push = evo_wait(nv50_mast(dev), 32);
4357         if (!push)
4358                 return -EBUSY;
4359
4360         evo_mthd(push, 0x0088, 1);
4361         evo_data(push, nv50_mast(dev)->base.sync.handle);
4362         evo_kick(push, nv50_mast(dev));
4363
4364         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
4365                 if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
4366                         struct nouveau_encoder *nv_encoder =
4367                                 nouveau_encoder(encoder);
4368                         nv50_mstm_init(nv_encoder->dp.mstm);
4369                 }
4370         }
4371
4372         drm_for_each_crtc(crtc, dev) {
4373                 nv50_head_lut_load(crtc);
4374         }
4375
4376         drm_for_each_plane(plane, dev) {
4377                 struct nv50_wndw *wndw = nv50_wndw(plane);
4378                 if (plane->funcs != &nv50_wndw)
4379                         continue;
4380                 nv50_wndw_init(wndw);
4381         }
4382
4383         return 0;
4384 }
4385
4386 void
4387 nv50_display_destroy(struct drm_device *dev)
4388 {
4389         struct nv50_disp *disp = nv50_disp(dev);
4390
4391         nv50_dmac_destroy(&disp->mast.base, disp->disp);
4392
4393         nouveau_bo_unmap(disp->sync);
4394         if (disp->sync)
4395                 nouveau_bo_unpin(disp->sync);
4396         nouveau_bo_ref(NULL, &disp->sync);
4397
4398         nouveau_display(dev)->priv = NULL;
4399         kfree(disp);
4400 }
4401
4402 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
4403 static int nouveau_atomic = 0;
4404 module_param_named(atomic, nouveau_atomic, int, 0400);
4405
4406 int
4407 nv50_display_create(struct drm_device *dev)
4408 {
4409         struct nvif_device *device = &nouveau_drm(dev)->client.device;
4410         struct nouveau_drm *drm = nouveau_drm(dev);
4411         struct dcb_table *dcb = &drm->vbios.dcb;
4412         struct drm_connector *connector, *tmp;
4413         struct nv50_disp *disp;
4414         struct dcb_output *dcbe;
4415         int crtcs, ret, i;
4416
4417         disp = kzalloc(sizeof(*disp), GFP_KERNEL);
4418         if (!disp)
4419                 return -ENOMEM;
4420
4421         mutex_init(&disp->mutex);
4422
4423         nouveau_display(dev)->priv = disp;
4424         nouveau_display(dev)->dtor = nv50_display_destroy;
4425         nouveau_display(dev)->init = nv50_display_init;
4426         nouveau_display(dev)->fini = nv50_display_fini;
4427         disp->disp = &nouveau_display(dev)->disp;
4428         dev->mode_config.funcs = &nv50_disp_func;
4429         if (nouveau_atomic)
4430                 dev->driver->driver_features |= DRIVER_ATOMIC;
4431
4432         /* small shared memory area we use for notifiers and semaphores */
4433         ret = nouveau_bo_new(&drm->client, 4096, 0x1000, TTM_PL_FLAG_VRAM,
4434                              0, 0x0000, NULL, NULL, &disp->sync);
4435         if (!ret) {
4436                 ret = nouveau_bo_pin(disp->sync, TTM_PL_FLAG_VRAM, true);
4437                 if (!ret) {
4438                         ret = nouveau_bo_map(disp->sync);
4439                         if (ret)
4440                                 nouveau_bo_unpin(disp->sync);
4441                 }
4442                 if (ret)
4443                         nouveau_bo_ref(NULL, &disp->sync);
4444         }
4445
4446         if (ret)
4447                 goto out;
4448
4449         /* allocate master evo channel */
4450         ret = nv50_core_create(device, disp->disp, disp->sync->bo.offset,
4451                               &disp->mast);
4452         if (ret)
4453                 goto out;
4454
4455         /* create crtc objects to represent the hw heads */
4456         if (disp->disp->oclass >= GF110_DISP)
4457                 crtcs = nvif_rd32(&device->object, 0x612004) & 0xf;
4458         else
4459                 crtcs = 0x3;
4460
4461         for (i = 0; i < fls(crtcs); i++) {
4462                 if (!(crtcs & (1 << i)))
4463                         continue;
4464                 ret = nv50_head_create(dev, i);
4465                 if (ret)
4466                         goto out;
4467         }
4468
4469         /* create encoder/connector objects based on VBIOS DCB table */
4470         for (i = 0, dcbe = &dcb->entry[0]; i < dcb->entries; i++, dcbe++) {
4471                 connector = nouveau_connector_create(dev, dcbe->connector);
4472                 if (IS_ERR(connector))
4473                         continue;
4474
4475                 if (dcbe->location == DCB_LOC_ON_CHIP) {
4476                         switch (dcbe->type) {
4477                         case DCB_OUTPUT_TMDS:
4478                         case DCB_OUTPUT_LVDS:
4479                         case DCB_OUTPUT_DP:
4480                                 ret = nv50_sor_create(connector, dcbe);
4481                                 break;
4482                         case DCB_OUTPUT_ANALOG:
4483                                 ret = nv50_dac_create(connector, dcbe);
4484                                 break;
4485                         default:
4486                                 ret = -ENODEV;
4487                                 break;
4488                         }
4489                 } else {
4490                         ret = nv50_pior_create(connector, dcbe);
4491                 }
4492
4493                 if (ret) {
4494                         NV_WARN(drm, "failed to create encoder %d/%d/%d: %d\n",
4495                                      dcbe->location, dcbe->type,
4496                                      ffs(dcbe->or) - 1, ret);
4497                         ret = 0;
4498                 }
4499         }
4500
4501         /* cull any connectors we created that don't have an encoder */
4502         list_for_each_entry_safe(connector, tmp, &dev->mode_config.connector_list, head) {
4503                 if (connector->encoder_ids[0])
4504                         continue;
4505
4506                 NV_WARN(drm, "%s has no encoders, removing\n",
4507                         connector->name);
4508                 connector->funcs->destroy(connector);
4509         }
4510
4511 out:
4512         if (ret)
4513                 nv50_display_destroy(dev);
4514         return ret;
4515 }