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
  24 #include <nvif/class.h>
  25 #include <nvif/cl0002.h>
  26
  27 #include <drm/drm_atomic_helper.h>
  28 #include "nouveau_bo.h"
  29
  30 static void
  31 nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
  32 {
  33         nvif_object_fini(&ctxdma->object);
  34         list_del(&ctxdma->head);
  35         kfree(ctxdma);
  36 }
  37
  38 static struct nv50_wndw_ctxdma *
  39 nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct nouveau_framebuffer *fb)
  40 {
  41         struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
  42         struct nv50_wndw_ctxdma *ctxdma;
  43         const u8    kind = fb->nvbo->kind;
  44         const u32 handle = 0xfb000000 | kind;
  45         struct {
  46                 struct nv_dma_v0 base;
  47                 union {
  48                         struct nv50_dma_v0 nv50;
  49                         struct gf100_dma_v0 gf100;
  50                         struct gf119_dma_v0 gf119;
  51                 };
  52         } args = {};
  53         u32 argc = sizeof(args.base);
  54         int ret;
  55
  56         list_for_each_entry(ctxdma, &wndw->ctxdma.list, head) {
  57                 if (ctxdma->object.handle == handle)
  58                         return ctxdma;
  59         }
  60
  61         if (!(ctxdma = kzalloc(sizeof(*ctxdma), GFP_KERNEL)))
  62                 return ERR_PTR(-ENOMEM);
  63         list_add(&ctxdma->head, &wndw->ctxdma.list);
  64
  65         args.base.target = NV_DMA_V0_TARGET_VRAM;
  66         args.base.access = NV_DMA_V0_ACCESS_RDWR;
  67         args.base.start  = 0;
  68         args.base.limit  = drm->client.device.info.ram_user - 1;
  69
  70         if (drm->client.device.info.chipset < 0x80) {
  71                 args.nv50.part = NV50_DMA_V0_PART_256;
  72                 argc += sizeof(args.nv50);
  73         } else
  74         if (drm->client.device.info.chipset < 0xc0) {
  75                 args.nv50.part = NV50_DMA_V0_PART_256;
  76                 args.nv50.kind = kind;
  77                 argc += sizeof(args.nv50);
  78         } else
  79         if (drm->client.device.info.chipset < 0xd0) {
  80                 args.gf100.kind = kind;
  81                 argc += sizeof(args.gf100);
  82         } else {
  83                 args.gf119.page = GF119_DMA_V0_PAGE_LP;
  84                 args.gf119.kind = kind;
  85                 argc += sizeof(args.gf119);
  86         }
  87
  88         ret = nvif_object_init(wndw->ctxdma.parent, handle, NV_DMA_IN_MEMORY,
  89                                &args, argc, &ctxdma->object);
  90         if (ret) {
  91                 nv50_wndw_ctxdma_del(ctxdma);
  92                 return ERR_PTR(ret);
  93         }
  94
  95         return ctxdma;
  96 }
  97
  98 int
  99 nv50_wndw_wait_armed(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 100 {
 101         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 102         if (asyw->set.ntfy) {
 103                 return wndw->func->ntfy_wait_begun(disp->sync,
 104                                                    asyw->ntfy.offset,
 105                                                    wndw->wndw.base.device);
 106         }
 107         return 0;
 108 }
 109
 110 void
 111 nv50_wndw_flush_clr(struct nv50_wndw *wndw, u32 *interlock, bool flush,
 112                     struct nv50_wndw_atom *asyw)
 113 {
 114         union nv50_wndw_atom_mask clr = {
 115                 .mask = asyw->clr.mask & ~(flush ? 0 : asyw->set.mask),
 116         };
 117         if (clr.sema ) wndw->func-> sema_clr(wndw);
 118         if (clr.ntfy ) wndw->func-> ntfy_clr(wndw);
 119         if (clr.image) wndw->func->image_clr(wndw);
 120
 121         interlock[wndw->interlock.type] |= wndw->interlock.data;
 122 }
 123
 124 void
 125 nv50_wndw_flush_set(struct nv50_wndw *wndw, u32 *interlock,
 126                     struct nv50_wndw_atom *asyw)
 127 {
 128         if (interlock) {
 129                 asyw->image.mode = 0;
 130                 asyw->image.interval = 1;
 131         }
 132
 133         if (asyw->set.sema ) wndw->func->sema_set (wndw, asyw);
 134         if (asyw->set.ntfy ) wndw->func->ntfy_set (wndw, asyw);
 135         if (asyw->set.image) wndw->func->image_set(wndw, asyw);
 136         if (asyw->set.lut  ) wndw->func->lut      (wndw, asyw);
 137         if (asyw->set.point) {
 138                 wndw->immd->point(wndw, asyw);
 139                 wndw->immd->update(wndw, interlock);
 140         }
 141
 142         interlock[wndw->interlock.type] |= wndw->interlock.data;
 143 }
 144
 145 void
 146 nv50_wndw_ntfy_enable(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 147 {
 148         struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 149
 150         asyw->ntfy.handle = wndw->wndw.sync.handle;
 151         asyw->ntfy.offset = wndw->ntfy;
 152         asyw->ntfy.awaken = false;
 153         asyw->set.ntfy = true;
 154
 155         wndw->func->ntfy_reset(disp->sync, wndw->ntfy);
 156         wndw->ntfy ^= 0x10;
 157 }
 158
 159 static void
 160 nv50_wndw_atomic_check_release(struct nv50_wndw *wndw,
 161                                struct nv50_wndw_atom *asyw,
 162                                struct nv50_head_atom *asyh)
 163 {
 164         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 165         NV_ATOMIC(drm, "%s release\n", wndw->plane.name);
 166         wndw->func->release(wndw, asyw, asyh);
 167         asyw->ntfy.handle = 0;
 168         asyw->sema.handle = 0;
 169 }
 170
 171 static int
 172 nv50_wndw_atomic_check_acquire_rgb(struct nv50_wndw_atom *asyw)
 173 {
 174         switch (asyw->state.fb->format->format) {
 175         case DRM_FORMAT_C8         : asyw->image.format = 0x1e; break;
 176         case DRM_FORMAT_XRGB8888   :
 177         case DRM_FORMAT_ARGB8888   : asyw->image.format = 0xcf; break;
 178         case DRM_FORMAT_RGB565     : asyw->image.format = 0xe8; break;
 179         case DRM_FORMAT_XRGB1555   :
 180         case DRM_FORMAT_ARGB1555   : asyw->image.format = 0xe9; break;
 181         case DRM_FORMAT_XBGR2101010:
 182         case DRM_FORMAT_ABGR2101010: asyw->image.format = 0xd1; break;
 183         case DRM_FORMAT_XBGR8888   :
 184         case DRM_FORMAT_ABGR8888   : asyw->image.format = 0xd5; break;
 185         default:
 186                 WARN_ON(1);
 187                 return -EINVAL;
 188         }
 189         return 0;
 190 }
 191
 192 static int
 193 nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw,
 194                                struct nv50_wndw_atom *asyw,
 195                                struct nv50_head_atom *asyh)
 196 {
 197         struct nouveau_framebuffer *fb = nouveau_framebuffer(asyw->state.fb);
 198         struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 199         int ret;
 200
 201         NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
 202
 203         asyw->image.w = fb->base.width;
 204         asyw->image.h = fb->base.height;
 205         asyw->image.kind = fb->nvbo->kind;
 206
 207         ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
 208         if (ret)
 209                 return ret;
 210
 211         if (asyw->image.kind) {
 212                 asyw->image.layout = 0;
 213                 if (drm->client.device.info.chipset >= 0xc0)
 214                         asyw->image.block = fb->nvbo->mode >> 4;
 215                 else
 216                         asyw->image.block = fb->nvbo->mode;
 217                 asyw->image.pitch[0] = (fb->base.pitches[0] / 4) << 4;
 218         } else {
 219                 asyw->image.layout = 1;
 220                 asyw->image.block  = 0;
 221                 asyw->image.pitch[0] = fb->base.pitches[0];
 222         }
 223
 224         ret = wndw->func->acquire(wndw, asyw, asyh);
 225         if (ret)
 226                 return ret;
 227
 228         if (asyw->set.image) {
 229                 if (!(asyh->state.pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC))
 230                         asyw->image.interval = 1;
 231                 else
 232                         asyw->image.interval = 0;
 233                 asyw->image.mode = asyw->image.interval ? 0 : 1;
 234         }
 235
 236         return 0;
 237 }
 238
 239 int
 240 nv50_wndw_atomic_check(struct drm_plane *plane, struct drm_plane_state *state)
 241 {
 242         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 243         struct nv50_wndw *wndw = nv50_wndw(plane);
 244         struct nv50_wndw_atom *armw = nv50_wndw_atom(wndw->plane.state);
 245         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 246         struct nv50_head_atom *harm = NULL, *asyh = NULL;
 247         bool modeset = false;
 248         int ret;
 249
 250         NV_ATOMIC(drm, "%s atomic_check\n", plane->name);
 251
 252         /* Fetch the assembly state for the head the window will belong to,
 253          * and determine whether the window will be visible.
 254          */
 255         if (asyw->state.crtc) {
 256                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 257                 if (IS_ERR(asyh))
 258                         return PTR_ERR(asyh);
 259                 modeset = drm_atomic_crtc_needs_modeset(&asyh->state);
 260                 asyw->visible = asyh->state.active;
 261         } else {
 262                 asyw->visible = false;
 263         }
 264
 265         /* Fetch assembly state for the head the window used to belong to. */
 266         if (armw->state.crtc) {
 267                 harm = nv50_head_atom_get(asyw->state.state, armw->state.crtc);
 268                 if (IS_ERR(harm))
 269                         return PTR_ERR(harm);
 270         }
 271
 272         /* Calculate new window state. */
 273         if (asyw->visible) {
 274                 asyw->point.x = asyw->state.crtc_x;
 275                 asyw->point.y = asyw->state.crtc_y;
 276                 if (memcmp(&armw->point, &asyw->point, sizeof(asyw->point)))
 277                         asyw->set.point = true;
 278
 279                 ret = nv50_wndw_atomic_check_acquire(wndw, asyw, asyh);
 280                 if (ret)
 281                         return ret;
 282         } else
 283         if (armw->visible) {
 284                 nv50_wndw_atomic_check_release(wndw, asyw, harm);
 285         } else {
 286                 return 0;
 287         }
 288
 289         /* Aside from the obvious case where the window is actively being
 290          * disabled, we might also need to temporarily disable the window
 291          * when performing certain modeset operations.
 292          */
 293         if (!asyw->visible || modeset) {
 294                 asyw->clr.ntfy = armw->ntfy.handle != 0;
 295                 asyw->clr.sema = armw->sema.handle != 0;
 296                 if (wndw->func->image_clr)
 297                         asyw->clr.image = armw->image.handle[0] != 0;
 298                 asyw->set.lut = wndw->func->lut && asyw->visible;
 299         }
 300
 301         return 0;
 302 }
 303
 304 static void
 305 nv50_wndw_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state)
 306 {
 307         struct nouveau_framebuffer *fb = nouveau_framebuffer(old_state->fb);
 308         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 309
 310         NV_ATOMIC(drm, "%s cleanup: %p\n", plane->name, old_state->fb);
 311         if (!old_state->fb)
 312                 return;
 313
 314         nouveau_bo_unpin(fb->nvbo);
 315 }
 316
 317 static int
 318 nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 319 {
 320         struct nouveau_framebuffer *fb = nouveau_framebuffer(state->fb);
 321         struct nouveau_drm *drm = nouveau_drm(plane->dev);
 322         struct nv50_wndw *wndw = nv50_wndw(plane);
 323         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 324         struct nv50_head_atom *asyh;
 325         struct nv50_wndw_ctxdma *ctxdma;
 326         int ret;
 327
 328         NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, state->fb);
 329         if (!asyw->state.fb)
 330                 return 0;
 331
 332         ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM, true);
 333         if (ret)
 334                 return ret;
 335
 336         ctxdma = nv50_wndw_ctxdma_new(wndw, fb);
 337         if (IS_ERR(ctxdma)) {
 338                 nouveau_bo_unpin(fb->nvbo);
 339                 return PTR_ERR(ctxdma);
 340         }
 341
 342         asyw->state.fence = reservation_object_get_excl_rcu(fb->nvbo->bo.resv);
 343         asyw->image.handle[0] = ctxdma->object.handle;
 344         asyw->image.offset[0] = fb->nvbo->bo.offset;
 345
 346         if (wndw->func->prepare) {
 347                 asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 348                 if (IS_ERR(asyh))
 349                         return PTR_ERR(asyh);
 350
 351                 wndw->func->prepare(wndw, asyh, asyw);
 352         }
 353
 354         return 0;
 355 }
 356
 357 static const struct drm_plane_helper_funcs
 358 nv50_wndw_helper = {
 359         .prepare_fb = nv50_wndw_prepare_fb,
 360         .cleanup_fb = nv50_wndw_cleanup_fb,
 361         .atomic_check = nv50_wndw_atomic_check,
 362 };
 363
 364 static void
 365 nv50_wndw_atomic_destroy_state(struct drm_plane *plane,
 366                                struct drm_plane_state *state)
 367 {
 368         struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 369         __drm_atomic_helper_plane_destroy_state(&asyw->state);
 370         kfree(asyw);
 371 }
 372
 373 static struct drm_plane_state *
 374 nv50_wndw_atomic_duplicate_state(struct drm_plane *plane)
 375 {
 376         struct nv50_wndw_atom *armw = nv50_wndw_atom(plane->state);
 377         struct nv50_wndw_atom *asyw;
 378         if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL)))
 379                 return NULL;
 380         __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state);
 381         asyw->sema = armw->sema;
 382         asyw->ntfy = armw->ntfy;
 383         asyw->image = armw->image;
 384         asyw->point = armw->point;
 385         asyw->lut = armw->lut;
 386         asyw->clr.mask = 0;
 387         asyw->set.mask = 0;
 388         return &asyw->state;
 389 }
 390
 391 static void
 392 nv50_wndw_reset(struct drm_plane *plane)
 393 {
 394         struct nv50_wndw_atom *asyw;
 395
 396         if (WARN_ON(!(asyw = kzalloc(sizeof(*asyw), GFP_KERNEL))))
 397                 return;
 398
 399         if (plane->state)
 400                 plane->funcs->atomic_destroy_state(plane, plane->state);
 401         plane->state = &asyw->state;
 402         plane->state->plane = plane;
 403         plane->state->rotation = DRM_MODE_ROTATE_0;
 404 }
 405
 406 static void
 407 nv50_wndw_destroy(struct drm_plane *plane)
 408 {
 409         struct nv50_wndw *wndw = nv50_wndw(plane);
 410         struct nv50_wndw_ctxdma *ctxdma, *ctxtmp;
 411
 412         list_for_each_entry_safe(ctxdma, ctxtmp, &wndw->ctxdma.list, head) {
 413                 nv50_wndw_ctxdma_del(ctxdma);
 414         }
 415
 416         nvif_notify_fini(&wndw->notify);
 417         nv50_dmac_destroy(&wndw->wimm);
 418         nv50_dmac_destroy(&wndw->wndw);
 419         drm_plane_cleanup(&wndw->plane);
 420         kfree(wndw);
 421 }
 422
 423 const struct drm_plane_funcs
 424 nv50_wndw = {
 425         .update_plane = drm_atomic_helper_update_plane,
 426         .disable_plane = drm_atomic_helper_disable_plane,
 427         .destroy = nv50_wndw_destroy,
 428         .reset = nv50_wndw_reset,
 429         .atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
 430         .atomic_destroy_state = nv50_wndw_atomic_destroy_state,
 431 };
 432
 433 static int
 434 nv50_wndw_notify(struct nvif_notify *notify)
 435 {
 436         return NVIF_NOTIFY_KEEP;
 437 }
 438
 439 void
 440 nv50_wndw_fini(struct nv50_wndw *wndw)
 441 {
 442         nvif_notify_put(&wndw->notify);
 443 }
 444
 445 void
 446 nv50_wndw_init(struct nv50_wndw *wndw)
 447 {
 448         nvif_notify_get(&wndw->notify);
 449 }
 450
 451 int
 452 nv50_wndw_new_(const struct nv50_wndw_func *func, struct drm_device *dev,
 453                enum drm_plane_type type, const char *name, int index,
 454                const u32 *format, u32 heads,
 455                enum nv50_disp_interlock_type interlock_type, u32 interlock_data,
 456                struct nv50_wndw **pwndw)
 457 {
 458         struct nv50_wndw *wndw;
 459         int nformat;
 460         int ret;
 461
 462         if (!(wndw = *pwndw = kzalloc(sizeof(*wndw), GFP_KERNEL)))
 463                 return -ENOMEM;
 464         wndw->func = func;
 465         wndw->id = index;
 466         wndw->interlock.type = interlock_type;
 467         wndw->interlock.data = interlock_data;
 468         wndw->ctxdma.parent = &wndw->wndw.base.user;
 469
 470         wndw->ctxdma.parent = &wndw->wndw.base.user;
 471         INIT_LIST_HEAD(&wndw->ctxdma.list);
 472
 473         for (nformat = 0; format[nformat]; nformat++);
 474
 475         ret = drm_universal_plane_init(dev, &wndw->plane, heads, &nv50_wndw,
 476                                        format, nformat, NULL,
 477                                        type, "%s-%d", name, index);
 478         if (ret) {
 479                 kfree(*pwndw);
 480                 *pwndw = NULL;
 481                 return ret;
 482         }
 483
 484         drm_plane_helper_add(&wndw->plane, &nv50_wndw_helper);
 485
 486         wndw->notify.func = nv50_wndw_notify;
 487         return 0;
 488 }