drivers/gpu/drm/nouveau/dispnv50/wndw.c

   1 /*
   2  * Copyright 2018 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22 #include "wndw.h"
  23 #include "wimm.h"
  24 #include "handles.h"
  25
  26 #include <nvif/class.h>
  27 #include <nvif/cl0002.h>
  28
  29 #include <nvhw/class/cl507c.h>
  30 #include <nvhw/class/cl507e.h>
  31 #include <nvhw/class/clc37e.h>
  32
  33 #include <drm/drm_atomic_helper.h>
  34 #include <drm/drm_fourcc.h>
  35
  36 #include "nouveau_bo.h"
  37 #include "nouveau_gem.h"
  38
  39 static void
  40 nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
  41 {
  42         nvif_object_dtor(&ctxdma->object);
  43         list_del(&ctxdma->head);
  44         kfree(ctxdma);
  45 }
  46
  47 static struct nv50_wndw_ctxdma *
  48 nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct drm_framebuffer *fb)
  49 {
  50         struct nouveau_drm *drm = nouveau_drm(fb->dev);
  51         struct nv50_wndw_ctxdma *ctxdma;
  52         u32 handle;
  53         u32 unused;
  54         u8  kind;
  55         struct {
  56                 struct nv_dma_v0 base;
  57                 union {
  58                         struct nv50_dma_v0 nv50;
  59                         struct gf100_dma_v0 gf100;
  60                         struct gf119_dma_v0 gf119;
  61                 };
  62         } args = {};
  63         u32 argc = sizeof(args.base);
  64         int ret;
  65
  66         nouveau_framebuffer_get_layout(fb, &unused, &kind);
  67         handle = NV50_DISP_HANDLE_WNDW_CTX(kind);
  68
  69         list_for_each_entry(ctxdma, &wndw->ctxdma.list, head) {
  70                 if (ctxdma->object.handle == handle)
  71                         return ctxdma;
  72         }
  73
  74         if (!(ctxdma = kzalloc(sizeof(*ctxdma), GFP_KERNEL)))
  75                 return ERR_PTR(-ENOMEM);
  76         list_add(&ctxdma->head, &wndw->ctxdma.list);
  77
  78         args.base.target = NV_DMA_V0_TARGET_VRAM;
  79         args.base.access = NV_DMA_V0_ACCESS_RDWR;
  80         args.base.start  = 0;
  81         args.base.limit  = drm->client.device.info.ram_user - 1;
  82
  83         if (drm->client.device.info.chipset < 0x80) {
  84                 args.nv50.part = NV50_DMA_V0_PART_256;
  85                 argc += sizeof(args.nv50);
  86         } else
  87         if (drm->client.device.info.chipset < 0xc0) {
  88                 args.nv50.part = NV50_DMA_V0_PART_256;
  89                 args.nv50.kind = kind;
  90                 argc += sizeof(args.nv50);
  91         } else
  92         if (drm->client.device.info.chipset < 0xd0) {
  93                 args.gf100.kind = kind;
  94                 argc += sizeof(args.gf100);
  95         } else {
  96                 args.gf119.page = GF119_DMA_V0_PAGE_LP;
  97                 args.gf119.kind = kind;
  98                 argc += sizeof(args.gf119);
  99         }
 100
 101         ret = nvif_object_ctor(wndw->ctxdma.parent, "kmsFbCtxDma", handle,
 102                                NV_DMA_IN_MEMORY, &args, argc, &ctxdma->object);
 103         if (ret) {
 104                 nv50_wndw_ctxdma_del(ctxdma);
 105                 return ERR_PTR(ret);
 106         }
 107
 108         return ctxdma;
 109 }
 110
 111 int
 112 nv50_wndw_wait_armed(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 113 {
 114         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 115         if (asyw->set.ntfy) {
 116                 return wndw->func->ntfy_wait_begun(disp->sync,
 117                                                    asyw->ntfy.offset,
 118                                                    wndw->wndw.base.device);
 119         }
 120         return 0;
 121 }
 122
 123 void
 124 nv50_wndw_flush_clr(struct nv50_wndw *wndw, u32 *interlock, bool flush,
 125                     struct nv50_wndw_atom *asyw)
 126 {
 127         union nv50_wndw_atom_mask clr = {
 128                 .mask = asyw->clr.mask & ~(flush ? 0 : asyw->set.mask),
 129         };
 130         if (clr.sema ) wndw->func-> sema_clr(wndw);
 131         if (clr.ntfy ) wndw->func-> ntfy_clr(wndw);
 132         if (clr.xlut ) wndw->func-> xlut_clr(wndw);
 133         if (clr.csc  ) wndw->func->  csc_clr(wndw);
 134         if (clr.image) wndw->func->image_clr(wndw);
 135
 136         interlock[wndw->interlock.type] |= wndw->interlock.data;
 137 }
 138
 139 void
 140 nv50_wndw_flush_set(struct nv50_wndw *wndw, u32 *interlock,
 141                     struct nv50_wndw_atom *asyw)
 142 {
 143         if (interlock[NV50_DISP_INTERLOCK_CORE]) {
 144                 asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_NON_TEARING;
 145                 asyw->image.interval = 1;
 146         }
 147
 148         if (asyw->set.sema ) wndw->func->sema_set (wndw, asyw);
 149         if (asyw->set.ntfy ) wndw->func->ntfy_set (wndw, asyw);
 150         if (asyw->set.image) wndw->func->image_set(wndw, asyw);
 151
 152         if (asyw->set.xlut ) {
 153                 if (asyw->ilut) {
 154                         asyw->xlut.i.offset =
 155                                 nv50_lut_load(&wndw->ilut, asyw->xlut.i.buffer,
 156                                               asyw->ilut, asyw->xlut.i.load);
 157                 }
 158                 wndw->func->xlut_set(wndw, asyw);
 159         }
 160
 161         if (asyw->set.csc  ) wndw->func->csc_set  (wndw, asyw);
 162         if (asyw->set.scale) wndw->func->scale_set(wndw, asyw);
 163         if (asyw->set.blend) wndw->func->blend_set(wndw, asyw);
 164         if (asyw->set.point) {
 165                 if (asyw->set.point = false, asyw->set.mask)
 166                         interlock[wndw->interlock.type] |= wndw->interlock.data;
 167                 interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.wimm;
 168
 169                 wndw->immd->point(wndw, asyw);
 170                 wndw->immd->update(wndw, interlock);
 171         } else {
 172                 interlock[wndw->interlock.type] |= wndw->interlock.data;
 173         }
 174 }
 175
 176 void
 177 nv50_wndw_ntfy_enable(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 178 {
 179         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 180
 181         asyw->ntfy.handle = wndw->wndw.sync.handle;
 182         asyw->ntfy.offset = wndw->ntfy;
 183         asyw->ntfy.awaken = false;
 184         asyw->set.ntfy = true;
 185
 186         wndw->func->ntfy_reset(disp->sync, wndw->ntfy);
 187         wndw->ntfy ^= 0x10;
 188 }
 189
 190 static void
 191 nv50_wndw_atomic_check_release(struct nv50_wndw *wndw,
 192                                struct nv50_wndw_atom *asyw,
 193                                struct nv50_head_atom *asyh)
 194 {
 195         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 196         NV_ATOMIC(drm, "%s release\n", wndw->plane.name);
 197         wndw->func->release(wndw, asyw, asyh);
 198         asyw->ntfy.handle = 0;
 199         asyw->sema.handle = 0;
 200         asyw->xlut.handle = 0;
 201         memset(asyw->image.handle, 0x00, sizeof(asyw->image.handle));
 202 }
 203
 204 static int
 205 nv50_wndw_atomic_check_acquire_yuv(struct nv50_wndw_atom *asyw)
 206 {
 207         switch (asyw->state.fb->format->format) {
 208         case DRM_FORMAT_YUYV:
 209                 asyw->image.format = NV507E_SURFACE_SET_PARAMS_FORMAT_VE8YO8UE8YE8;
 210                 break;
 211         case DRM_FORMAT_UYVY:
 212                 asyw->image.format = NV507E_SURFACE_SET_PARAMS_FORMAT_YO8VE8YE8UE8;
 213                 break;
 214         default:
 215                 WARN_ON(1);
 216                 return -EINVAL;
 217         }
 218
 219         asyw->image.colorspace = NV507E_SURFACE_SET_PARAMS_COLOR_SPACE_YUV_601;
 220         return 0;
 221 }
 222
 223 static int
 224 nv50_wndw_atomic_check_acquire_rgb(struct nv50_wndw_atom *asyw)
 225 {
 226         switch (asyw->state.fb->format->format) {
 227         case DRM_FORMAT_C8:
 228                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_I8;
 229                 break;
 230         case DRM_FORMAT_XRGB8888:
 231         case DRM_FORMAT_ARGB8888:
 232                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A8R8G8B8;
 233                 break;
 234         case DRM_FORMAT_RGB565:
 235                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_R5G6B5;
 236                 break;
 237         case DRM_FORMAT_XRGB1555:
 238         case DRM_FORMAT_ARGB1555:
 239                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A1R5G5B5;
 240                 break;
 241         case DRM_FORMAT_XBGR2101010:
 242         case DRM_FORMAT_ABGR2101010:
 243                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A2B10G10R10;
 244                 break;
 245         case DRM_FORMAT_XBGR8888:
 246         case DRM_FORMAT_ABGR8888:
 247                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A8B8G8R8;
 248                 break;
 249         case DRM_FORMAT_XRGB2101010:
 250         case DRM_FORMAT_ARGB2101010:
 251                 asyw->image.format = NVC37E_SET_PARAMS_FORMAT_A2R10G10B10;
 252                 break;
 253         case DRM_FORMAT_XBGR16161616F:
 254         case DRM_FORMAT_ABGR16161616F:
 255                 asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_RF16_GF16_BF16_AF16;
 256                 break;
 257         default:
 258                 return -EINVAL;
 259         }
 260
 261         asyw->image.colorspace = NV507E_SURFACE_SET_PARAMS_COLOR_SPACE_RGB;
 262         return 0;
 263 }
 264
 265 static int
 266 nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool modeset,
 267                                struct nv50_wndw_atom *armw,
 268                                struct nv50_wndw_atom *asyw,
 269                                struct nv50_head_atom *asyh)
 270 {
 271         struct drm_framebuffer *fb = asyw->state.fb;
 272         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 273         uint8_t kind;
 274         uint32_t tile_mode;
 275         int ret;
 276
 277         NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
 278
 279         if (fb != armw->state.fb || !armw->visible || modeset) {
 280                 nouveau_framebuffer_get_layout(fb, &tile_mode, &kind);
 281
 282                 asyw->image.w = fb->width;
 283                 asyw->image.h = fb->height;
 284                 asyw->image.kind = kind;
 285
 286                 ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
 287                 if (ret) {
 288                         ret = nv50_wndw_atomic_check_acquire_yuv(asyw);
 289                         if (ret)
 290                                 return ret;
 291                 }
 292
 293                 if (asyw->image.kind) {
 294                         asyw->image.layout = NV507C_SURFACE_SET_STORAGE_MEMORY_LAYOUT_BLOCKLINEAR;
 295                         if (drm->client.device.info.chipset >= 0xc0)
 296                                 asyw->image.blockh = tile_mode >> 4;
 297                         else
 298                                 asyw->image.blockh = tile_mode;
 299                         asyw->image.blocks[0] = fb->pitches[0] / 64;
 300                         asyw->image.pitch[0] = 0;
 301                 } else {
 302                         asyw->image.layout = NV507C_SURFACE_SET_STORAGE_MEMORY_LAYOUT_PITCH;
 303                         asyw->image.blockh = NV507C_SURFACE_SET_STORAGE_BLOCK_HEIGHT_ONE_GOB;
 304                         asyw->image.blocks[0] = 0;
 305                         asyw->image.pitch[0] = fb->pitches[0];
 306                 }
 307
 308                 if (!asyh->state.async_flip)
 309                         asyw->image.interval = 1;
 310                 else
 311                         asyw->image.interval = 0;
 312
 313                 if (asyw->image.interval)
 314                         asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_NON_TEARING;
 315                 else
 316                         asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_IMMEDIATE;
 317
 318                 asyw->set.image = wndw->func->image_set != NULL;
 319         }
 320
 321         if (wndw->func->scale_set) {
 322                 asyw->scale.sx = asyw->state.src_x >> 16;
 323                 asyw->scale.sy = asyw->state.src_y >> 16;
 324                 asyw->scale.sw = asyw->state.src_w >> 16;
 325                 asyw->scale.sh = asyw->state.src_h >> 16;
 326                 asyw->scale.dw = asyw->state.crtc_w;
 327                 asyw->scale.dh = asyw->state.crtc_h;
 328                 if (memcmp(&armw->scale, &asyw->scale, sizeof(asyw->scale)))
 329                         asyw->set.scale = true;
 330         }
 331
 332         if (wndw->func->blend_set) {
 333                 asyw->blend.depth = 255 - asyw->state.normalized_zpos;
 334                 asyw->blend.k1 = asyw->state.alpha >> 8;
 335                 switch (asyw->state.pixel_blend_mode) {
 336                 case DRM_MODE_BLEND_PREMULTI:
 337                         asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1;
 338                         asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1_TIMES_SRC;
 339                         break;
 340                 case DRM_MODE_BLEND_COVERAGE:
 341                         asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1_TIMES_SRC;
 342                         asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1_TIMES_SRC;
 343                         break;
 344                 case DRM_MODE_BLEND_PIXEL_NONE:
 345                 default:
 346                         asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1;
 347                         asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1;
 348                         break;
 349                 }
 350                 if (memcmp(&armw->blend, &asyw->blend, sizeof(asyw->blend)))
 351                         asyw->set.blend = true;
 352         }
 353
 354         if (wndw->immd) {
 355                 asyw->point.x = asyw->state.crtc_x;
 356                 asyw->point.y = asyw->state.crtc_y;
 357                 if (memcmp(&armw->point, &asyw->point, sizeof(asyw->point)))
 358                         asyw->set.point = true;
 359         }
 360
 361         return wndw->func->acquire(wndw, asyw, asyh);
 362 }
 363
 364 static int
 365 nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
 366                            struct nv50_wndw_atom *armw,
 367                            struct nv50_wndw_atom *asyw,
 368                            struct nv50_head_atom *asyh)
 369 {
 370         struct drm_property_blob *ilut = asyh->state.degamma_lut;
 371
 372         /* I8 format without an input LUT makes no sense, and the
 373          * HW error-checks for this.
 374          *
 375          * In order to handle legacy gamma, when there's no input
 376          * LUT we need to steal the output LUT and use it instead.
 377          */
 378         if (!ilut && asyw->state.fb->format->format == DRM_FORMAT_C8) {
 379                 /* This should be an error, but there's legacy clients
 380                  * that do a modeset before providing a gamma table.
 381                  *
 382                  * We keep the window disabled to avoid angering HW.
 383                  */
 384                 if (!(ilut = asyh->state.gamma_lut)) {
 385                         asyw->visible = false;
 386                         return 0;
 387                 }
 388
 389                 if (wndw->func->ilut)
 390                         asyh->wndw.olut |= BIT(wndw->id);
 391         } else {
 392                 asyh->wndw.olut &= ~BIT(wndw->id);
 393         }
 394
 395         if (!ilut && wndw->func->ilut_identity &&
 396             asyw->state.fb->format->format != DRM_FORMAT_XBGR16161616F &&
 397             asyw->state.fb->format->format != DRM_FORMAT_ABGR16161616F) {
 398                 static struct drm_property_blob dummy = {};
 399                 ilut = &dummy;
 400         }
 401
 402         /* Recalculate LUT state. */
 403         memset(&asyw->xlut, 0x00, sizeof(asyw->xlut));
 404         if ((asyw->ilut = wndw->func->ilut ? ilut : NULL)) {
 405                 if (!wndw->func->ilut(wndw, asyw, drm_color_lut_size(ilut))) {
 406                         DRM_DEBUG_KMS("Invalid ilut\n");
 407                         return -EINVAL;
 408                 }
 409                 asyw->xlut.handle = wndw->wndw.vram.handle;
 410                 asyw->xlut.i.buffer = !asyw->xlut.i.buffer;
 411                 asyw->set.xlut = true;
 412         } else {
 413                 asyw->clr.xlut = armw->xlut.handle != 0;
 414         }
 415
 416         /* Handle setting base SET_OUTPUT_LUT_LO_ENABLE_USE_CORE_LUT. */
 417         if (wndw->func->olut_core &&
 418             (!armw->visible || (armw->xlut.handle && !asyw->xlut.handle)))
 419                 asyw->set.xlut = true;
 420
 421         if (wndw->func->csc && asyh->state.ctm) {
 422                 const struct drm_color_ctm *ctm = asyh->state.ctm->data;
 423                 wndw->func->csc(wndw, asyw, ctm);
 424                 asyw->csc.valid = true;
 425                 asyw->set.csc = true;
 426         } else {
 427                 asyw->csc.valid = false;
 428                 asyw->clr.csc = armw->csc.valid;
 429         }
 430
 431         /* Can't do an immediate flip while changing the LUT. */
 432         asyh->state.async_flip = false;
 433         return 0;
 434 }
 435
 436 static int
 437 nv50_wndw_atomic_check(struct drm_plane *plane, struct drm_plane_state *state)
 438 {
 439         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 440         struct nv50_wndw *wndw = nv50_wndw(plane);
 441         struct nv50_wndw_atom *armw = nv50_wndw_atom(wndw->plane.state);
 442         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 443         struct nv50_head_atom *harm = NULL, *asyh = NULL;
 444         bool modeset = false;
 445         int ret;
 446
 447         NV_ATOMIC(drm, "%s atomic_check\n", plane->name);
 448
 449         /* Fetch the assembly state for the head the window will belong to,
 450          * and determine whether the window will be visible.
 451          */
 452         if (asyw->state.crtc) {
 453                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 454                 if (IS_ERR(asyh))
 455                         return PTR_ERR(asyh);
 456                 modeset = drm_atomic_crtc_needs_modeset(&asyh->state);
 457                 asyw->visible = asyh->state.active;
 458         } else {
 459                 asyw->visible = false;
 460         }
 461
 462         /* Fetch assembly state for the head the window used to belong to. */
 463         if (armw->state.crtc) {
 464                 harm = nv50_head_atom_get(asyw->state.state, armw->state.crtc);
 465                 if (IS_ERR(harm))
 466                         return PTR_ERR(harm);
 467         }
 468
 469         /* LUT configuration can potentially cause the window to be disabled. */
 470         if (asyw->visible && wndw->func->xlut_set &&
 471             (!armw->visible ||
 472              asyh->state.color_mgmt_changed ||
 473              asyw->state.fb->format->format !=
 474              armw->state.fb->format->format)) {
 475                 ret = nv50_wndw_atomic_check_lut(wndw, armw, asyw, asyh);
 476                 if (ret)
 477                         return ret;
 478         }
 479
 480         /* Calculate new window state. */
 481         if (asyw->visible) {
 482                 ret = nv50_wndw_atomic_check_acquire(wndw, modeset,
 483                                                      armw, asyw, asyh);
 484                 if (ret)
 485                         return ret;
 486
 487                 asyh->wndw.mask |= BIT(wndw->id);
 488         } else
 489         if (armw->visible) {
 490                 nv50_wndw_atomic_check_release(wndw, asyw, harm);
 491                 harm->wndw.mask &= ~BIT(wndw->id);
 492         } else {
 493                 return 0;
 494         }
 495
 496         /* Aside from the obvious case where the window is actively being
 497          * disabled, we might also need to temporarily disable the window
 498          * when performing certain modeset operations.
 499          */
 500         if (!asyw->visible || modeset) {
 501                 asyw->clr.ntfy = armw->ntfy.handle != 0;
 502                 asyw->clr.sema = armw->sema.handle != 0;
 503                 asyw->clr.xlut = armw->xlut.handle != 0;
 504                 if (asyw->clr.xlut && asyw->visible)
 505                         asyw->set.xlut = asyw->xlut.handle != 0;
 506                 asyw->clr.csc  = armw->csc.valid;
 507                 if (wndw->func->image_clr)
 508                         asyw->clr.image = armw->image.handle[0] != 0;
 509         }
 510
 511         return 0;
 512 }
 513
 514 static void
 515 nv50_wndw_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state)
 516 {
 517         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 518         struct nouveau_bo *nvbo;
 519
 520         NV_ATOMIC(drm, "%s cleanup: %p\n", plane->name, old_state->fb);
 521         if (!old_state->fb)
 522                 return;
 523
 524         nvbo = nouveau_gem_object(old_state->fb->obj[0]);
 525         nouveau_bo_unpin(nvbo);
 526 }
 527
 528 static int
 529 nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 530 {
 531         struct drm_framebuffer *fb = state->fb;
 532         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 533         struct nv50_wndw *wndw = nv50_wndw(plane);
 534         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 535         struct nouveau_bo *nvbo;
 536         struct nv50_head_atom *asyh;
 537         struct nv50_wndw_ctxdma *ctxdma;
 538         int ret;
 539
 540         NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, fb);
 541         if (!asyw->state.fb)
 542                 return 0;
 543
 544         nvbo = nouveau_gem_object(fb->obj[0]);
 545         ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true);
 546         if (ret)
 547                 return ret;
 548
 549         if (wndw->ctxdma.parent) {
 550                 ctxdma = nv50_wndw_ctxdma_new(wndw, fb);
 551                 if (IS_ERR(ctxdma)) {
 552                         nouveau_bo_unpin(nvbo);
 553                         return PTR_ERR(ctxdma);
 554                 }
 555
 556                 if (asyw->visible)
 557                         asyw->image.handle[0] = ctxdma->object.handle;
 558         }
 559
 560         asyw->state.fence = dma_resv_get_excl_rcu(nvbo->bo.base.resv);
 561         asyw->image.offset[0] = nvbo->offset;
 562
 563         if (wndw->func->prepare) {
 564                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 565                 if (IS_ERR(asyh))
 566                         return PTR_ERR(asyh);
 567
 568                 wndw->func->prepare(wndw, asyh, asyw);
 569         }
 570
 571         return 0;
 572 }
 573
 574 static const struct drm_plane_helper_funcs
 575 nv50_wndw_helper = {
 576         .prepare_fb = nv50_wndw_prepare_fb,
 577         .cleanup_fb = nv50_wndw_cleanup_fb,
 578         .atomic_check = nv50_wndw_atomic_check,
 579 };
 580
 581 static void
 582 nv50_wndw_atomic_destroy_state(struct drm_plane *plane,
 583                                struct drm_plane_state *state)
 584 {
 585         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 586         __drm_atomic_helper_plane_destroy_state(&asyw->state);
 587         kfree(asyw);
 588 }
 589
 590 static struct drm_plane_state *
 591 nv50_wndw_atomic_duplicate_state(struct drm_plane *plane)
 592 {
 593         struct nv50_wndw_atom *armw = nv50_wndw_atom(plane->state);
 594         struct nv50_wndw_atom *asyw;
 595         if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL)))
 596                 return NULL;
 597         __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state);
 598         asyw->sema = armw->sema;
 599         asyw->ntfy = armw->ntfy;
 600         asyw->ilut = NULL;
 601         asyw->xlut = armw->xlut;
 602         asyw->csc  = armw->csc;
 603         asyw->image = armw->image;
 604         asyw->point = armw->point;
 605         asyw->clr.mask = 0;
 606         asyw->set.mask = 0;
 607         return &asyw->state;
 608 }
 609
 610 static int
 611 nv50_wndw_zpos_default(struct drm_plane *plane)
 612 {
 613         return (plane->type == DRM_PLANE_TYPE_PRIMARY) ? 0 :
 614                (plane->type == DRM_PLANE_TYPE_OVERLAY) ? 1 : 255;
 615 }
 616
 617 static void
 618 nv50_wndw_reset(struct drm_plane *plane)
 619 {
 620         struct nv50_wndw_atom *asyw;
 621
 622         if (WARN_ON(!(asyw = kzalloc(sizeof(*asyw), GFP_KERNEL))))
 623                 return;
 624
 625         if (plane->state)
 626                 plane->funcs->atomic_destroy_state(plane, plane->state);
 627
 628         __drm_atomic_helper_plane_reset(plane, &asyw->state);
 629         plane->state->zpos = nv50_wndw_zpos_default(plane);
 630         plane->state->normalized_zpos = nv50_wndw_zpos_default(plane);
 631 }
 632
 633 static void
 634 nv50_wndw_destroy(struct drm_plane *plane)
 635 {
 636         struct nv50_wndw *wndw = nv50_wndw(plane);
 637         struct nv50_wndw_ctxdma *ctxdma, *ctxtmp;
 638
 639         list_for_each_entry_safe(ctxdma, ctxtmp, &wndw->ctxdma.list, head) {
 640                 nv50_wndw_ctxdma_del(ctxdma);
 641         }
 642
 643         nvif_notify_dtor(&wndw->notify);
 644         nv50_dmac_destroy(&wndw->wimm);
 645         nv50_dmac_destroy(&wndw->wndw);
 646
 647         nv50_lut_fini(&wndw->ilut);
 648
 649         drm_plane_cleanup(&wndw->plane);
 650         kfree(wndw);
 651 }
 652
 653 /* This function assumes the format has already been validated against the plane
 654  * and the modifier was validated against the device-wides modifier list at FB
 655  * creation time.
 656  */
 657 static bool nv50_plane_format_mod_supported(struct drm_plane *plane,
 658                                             u32 format, u64 modifier)
 659 {
 660         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 661         uint8_t i;
 662
 663         if (drm->client.device.info.chipset < 0xc0) {
 664                 const struct drm_format_info *info = drm_format_info(format);
 665                 const uint8_t kind = (modifier >> 12) & 0xff;
 666
 667                 if (!format) return false;
 668
 669                 for (i = 0; i < info->num_planes; i++)
 670                         if ((info->cpp[i] != 4) && kind != 0x70) return false;
 671         }
 672
 673         return true;
 674 }
 675
 676 const struct drm_plane_funcs
 677 nv50_wndw = {
 678         .update_plane = drm_atomic_helper_update_plane,
 679         .disable_plane = drm_atomic_helper_disable_plane,
 680         .destroy = nv50_wndw_destroy,
 681         .reset = nv50_wndw_reset,
 682         .atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
 683         .atomic_destroy_state = nv50_wndw_atomic_destroy_state,
 684         .format_mod_supported = nv50_plane_format_mod_supported,
 685 };
 686
 687 static int
 688 nv50_wndw_notify(struct nvif_notify *notify)
 689 {
 690         return NVIF_NOTIFY_KEEP;
 691 }
 692
 693 void
 694 nv50_wndw_fini(struct nv50_wndw *wndw)
 695 {
 696         nvif_notify_put(&wndw->notify);
 697 }
 698
 699 void
 700 nv50_wndw_init(struct nv50_wndw *wndw)
 701 {
 702         nvif_notify_get(&wndw->notify);
 703 }
 704
 705 int
 706 nv50_wndw_new_(const struct nv50_wndw_func *func, struct drm_device *dev,
 707                enum drm_plane_type type, const char *name, int index,
 708                const u32 *format, u32 heads,
 709                enum nv50_disp_interlock_type interlock_type, u32 interlock_data,
 710                struct nv50_wndw **pwndw)
 711 {
 712         struct nouveau_drm *drm = nouveau_drm(dev);
 713         struct nvif_mmu *mmu = &drm->client.mmu;
 714         struct nv50_disp *disp = nv50_disp(dev);
 715         struct nv50_wndw *wndw;
 716         int nformat;
 717         int ret;
 718
 719         if (!(wndw = *pwndw = kzalloc(sizeof(*wndw), GFP_KERNEL)))
 720                 return -ENOMEM;
 721         wndw->func = func;
 722         wndw->id = index;
 723         wndw->interlock.type = interlock_type;
 724         wndw->interlock.data = interlock_data;
 725
 726         wndw->ctxdma.parent = &wndw->wndw.base.user;
 727         INIT_LIST_HEAD(&wndw->ctxdma.list);
 728
 729         for (nformat = 0; format[nformat]; nformat++);
 730
 731         ret = drm_universal_plane_init(dev, &wndw->plane, heads, &nv50_wndw,
 732                                        format, nformat,
 733                                        nouveau_display(dev)->format_modifiers,
 734                                        type, "%s-%d", name, index);
 735         if (ret) {
 736                 kfree(*pwndw);
 737                 *pwndw = NULL;
 738                 return ret;
 739         }
 740
 741         drm_plane_helper_add(&wndw->plane, &nv50_wndw_helper);
 742
 743         if (wndw->func->ilut) {
 744                 ret = nv50_lut_init(disp, mmu, &wndw->ilut);
 745                 if (ret)
 746                         return ret;
 747         }
 748
 749         wndw->notify.func = nv50_wndw_notify;
 750
 751         if (wndw->func->blend_set) {
 752                 ret = drm_plane_create_zpos_property(&wndw->plane,
 753                                 nv50_wndw_zpos_default(&wndw->plane), 0, 254);
 754                 if (ret)
 755                         return ret;
 756
 757                 ret = drm_plane_create_alpha_property(&wndw->plane);
 758                 if (ret)
 759                         return ret;
 760
 761                 ret = drm_plane_create_blend_mode_property(&wndw->plane,
 762                                 BIT(DRM_MODE_BLEND_PIXEL_NONE) |
 763                                 BIT(DRM_MODE_BLEND_PREMULTI) |
 764                                 BIT(DRM_MODE_BLEND_COVERAGE));
 765                 if (ret)
 766                         return ret;
 767         } else {
 768                 ret = drm_plane_create_zpos_immutable_property(&wndw->plane,
 769                                 nv50_wndw_zpos_default(&wndw->plane));
 770                 if (ret)
 771                         return ret;
 772         }
 773
 774         return 0;
 775 }
 776
 777 int
 778 nv50_wndw_new(struct nouveau_drm *drm, enum drm_plane_type type, int index,
 779               struct nv50_wndw **pwndw)
 780 {
 781         struct {
 782                 s32 oclass;
 783                 int version;
 784                 int (*new)(struct nouveau_drm *, enum drm_plane_type,
 785                            int, s32, struct nv50_wndw **);
 786         } wndws[] = {
 787                 { TU102_DISP_WINDOW_CHANNEL_DMA, 0, wndwc57e_new },
 788                 { GV100_DISP_WINDOW_CHANNEL_DMA, 0, wndwc37e_new },
 789                 {}
 790         };
 791         struct nv50_disp *disp = nv50_disp(drm->dev);
 792         int cid, ret;
 793
 794         cid = nvif_mclass(&disp->disp->object, wndws);
 795         if (cid < 0) {
 796                 NV_ERROR(drm, "No supported window class\n");
 797                 return cid;
 798         }
 799
 800         ret = wndws[cid].new(drm, type, index, wndws[cid].oclass, pwndw);
 801         if (ret)
 802                 return ret;
 803
 804         return nv50_wimm_init(drm, *pwndw);
 805 }