linux/drivers/gpu/drm/nouveau/dispnv50/wndw.c
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   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.h>
  34#include <drm/drm_atomic_helper.h>
  35#include <drm/drm_fourcc.h>
  36
  37#include "nouveau_bo.h"
  38#include "nouveau_gem.h"
  39
  40static void
  41nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma *ctxdma)
  42{
  43        nvif_object_dtor(&ctxdma->object);
  44        list_del(&ctxdma->head);
  45        kfree(ctxdma);
  46}
  47
  48static struct nv50_wndw_ctxdma *
  49nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct drm_framebuffer *fb)
  50{
  51        struct nouveau_drm *drm = nouveau_drm(fb->dev);
  52        struct nv50_wndw_ctxdma *ctxdma;
  53        u32 handle;
  54        u32 unused;
  55        u8  kind;
  56        struct {
  57                struct nv_dma_v0 base;
  58                union {
  59                        struct nv50_dma_v0 nv50;
  60                        struct gf100_dma_v0 gf100;
  61                        struct gf119_dma_v0 gf119;
  62                };
  63        } args = {};
  64        u32 argc = sizeof(args.base);
  65        int ret;
  66
  67        nouveau_framebuffer_get_layout(fb, &unused, &kind);
  68        handle = NV50_DISP_HANDLE_WNDW_CTX(kind);
  69
  70        list_for_each_entry(ctxdma, &wndw->ctxdma.list, head) {
  71                if (ctxdma->object.handle == handle)
  72                        return ctxdma;
  73        }
  74
  75        if (!(ctxdma = kzalloc(sizeof(*ctxdma), GFP_KERNEL)))
  76                return ERR_PTR(-ENOMEM);
  77        list_add(&ctxdma->head, &wndw->ctxdma.list);
  78
  79        args.base.target = NV_DMA_V0_TARGET_VRAM;
  80        args.base.access = NV_DMA_V0_ACCESS_RDWR;
  81        args.base.start  = 0;
  82        args.base.limit  = drm->client.device.info.ram_user - 1;
  83
  84        if (drm->client.device.info.chipset < 0x80) {
  85                args.nv50.part = NV50_DMA_V0_PART_256;
  86                argc += sizeof(args.nv50);
  87        } else
  88        if (drm->client.device.info.chipset < 0xc0) {
  89                args.nv50.part = NV50_DMA_V0_PART_256;
  90                args.nv50.kind = kind;
  91                argc += sizeof(args.nv50);
  92        } else
  93        if (drm->client.device.info.chipset < 0xd0) {
  94                args.gf100.kind = kind;
  95                argc += sizeof(args.gf100);
  96        } else {
  97                args.gf119.page = GF119_DMA_V0_PAGE_LP;
  98                args.gf119.kind = kind;
  99                argc += sizeof(args.gf119);
 100        }
 101
 102        ret = nvif_object_ctor(wndw->ctxdma.parent, "kmsFbCtxDma", handle,
 103                               NV_DMA_IN_MEMORY, &args, argc, &ctxdma->object);
 104        if (ret) {
 105                nv50_wndw_ctxdma_del(ctxdma);
 106                return ERR_PTR(ret);
 107        }
 108
 109        return ctxdma;
 110}
 111
 112int
 113nv50_wndw_wait_armed(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 114{
 115        struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 116        if (asyw->set.ntfy) {
 117                return wndw->func->ntfy_wait_begun(disp->sync,
 118                                                   asyw->ntfy.offset,
 119                                                   wndw->wndw.base.device);
 120        }
 121        return 0;
 122}
 123
 124void
 125nv50_wndw_flush_clr(struct nv50_wndw *wndw, u32 *interlock, bool flush,
 126                    struct nv50_wndw_atom *asyw)
 127{
 128        union nv50_wndw_atom_mask clr = {
 129                .mask = asyw->clr.mask & ~(flush ? 0 : asyw->set.mask),
 130        };
 131        if (clr.sema ) wndw->func-> sema_clr(wndw);
 132        if (clr.ntfy ) wndw->func-> ntfy_clr(wndw);
 133        if (clr.xlut ) wndw->func-> xlut_clr(wndw);
 134        if (clr.csc  ) wndw->func->  csc_clr(wndw);
 135        if (clr.image) wndw->func->image_clr(wndw);
 136
 137        interlock[wndw->interlock.type] |= wndw->interlock.data;
 138}
 139
 140void
 141nv50_wndw_flush_set(struct nv50_wndw *wndw, u32 *interlock,
 142                    struct nv50_wndw_atom *asyw)
 143{
 144        if (interlock[NV50_DISP_INTERLOCK_CORE]) {
 145                asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_NON_TEARING;
 146                asyw->image.interval = 1;
 147        }
 148
 149        if (asyw->set.sema ) wndw->func->sema_set (wndw, asyw);
 150        if (asyw->set.ntfy ) wndw->func->ntfy_set (wndw, asyw);
 151        if (asyw->set.image) wndw->func->image_set(wndw, asyw);
 152
 153        if (asyw->set.xlut ) {
 154                if (asyw->ilut) {
 155                        asyw->xlut.i.offset =
 156                                nv50_lut_load(&wndw->ilut, asyw->xlut.i.buffer,
 157                                              asyw->ilut, asyw->xlut.i.load);
 158                }
 159                wndw->func->xlut_set(wndw, asyw);
 160        }
 161
 162        if (asyw->set.csc  ) wndw->func->csc_set  (wndw, asyw);
 163        if (asyw->set.scale) wndw->func->scale_set(wndw, asyw);
 164        if (asyw->set.blend) wndw->func->blend_set(wndw, asyw);
 165        if (asyw->set.point) {
 166                if (asyw->set.point = false, asyw->set.mask)
 167                        interlock[wndw->interlock.type] |= wndw->interlock.data;
 168                interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.wimm;
 169
 170                wndw->immd->point(wndw, asyw);
 171                wndw->immd->update(wndw, interlock);
 172        } else {
 173                interlock[wndw->interlock.type] |= wndw->interlock.data;
 174        }
 175}
 176
 177void
 178nv50_wndw_ntfy_enable(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 179{
 180        struct nv50_disp *disp = nv50_disp(wndw->plane.dev);
 181
 182        asyw->ntfy.handle = wndw->wndw.sync.handle;
 183        asyw->ntfy.offset = wndw->ntfy;
 184        asyw->ntfy.awaken = false;
 185        asyw->set.ntfy = true;
 186
 187        wndw->func->ntfy_reset(disp->sync, wndw->ntfy);
 188        wndw->ntfy ^= 0x10;
 189}
 190
 191static void
 192nv50_wndw_atomic_check_release(struct nv50_wndw *wndw,
 193                               struct nv50_wndw_atom *asyw,
 194                               struct nv50_head_atom *asyh)
 195{
 196        struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 197        NV_ATOMIC(drm, "%s release\n", wndw->plane.name);
 198        wndw->func->release(wndw, asyw, asyh);
 199        asyw->ntfy.handle = 0;
 200        asyw->sema.handle = 0;
 201        asyw->xlut.handle = 0;
 202        memset(asyw->image.handle, 0x00, sizeof(asyw->image.handle));
 203}
 204
 205static int
 206nv50_wndw_atomic_check_acquire_yuv(struct nv50_wndw_atom *asyw)
 207{
 208        switch (asyw->state.fb->format->format) {
 209        case DRM_FORMAT_YUYV:
 210                asyw->image.format = NV507E_SURFACE_SET_PARAMS_FORMAT_VE8YO8UE8YE8;
 211                break;
 212        case DRM_FORMAT_UYVY:
 213                asyw->image.format = NV507E_SURFACE_SET_PARAMS_FORMAT_YO8VE8YE8UE8;
 214                break;
 215        default:
 216                WARN_ON(1);
 217                return -EINVAL;
 218        }
 219
 220        asyw->image.colorspace = NV507E_SURFACE_SET_PARAMS_COLOR_SPACE_YUV_601;
 221        return 0;
 222}
 223
 224static int
 225nv50_wndw_atomic_check_acquire_rgb(struct nv50_wndw_atom *asyw)
 226{
 227        switch (asyw->state.fb->format->format) {
 228        case DRM_FORMAT_C8:
 229                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_I8;
 230                break;
 231        case DRM_FORMAT_XRGB8888:
 232        case DRM_FORMAT_ARGB8888:
 233                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A8R8G8B8;
 234                break;
 235        case DRM_FORMAT_RGB565:
 236                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_R5G6B5;
 237                break;
 238        case DRM_FORMAT_XRGB1555:
 239        case DRM_FORMAT_ARGB1555:
 240                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A1R5G5B5;
 241                break;
 242        case DRM_FORMAT_XBGR2101010:
 243        case DRM_FORMAT_ABGR2101010:
 244                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A2B10G10R10;
 245                break;
 246        case DRM_FORMAT_XBGR8888:
 247        case DRM_FORMAT_ABGR8888:
 248                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_A8B8G8R8;
 249                break;
 250        case DRM_FORMAT_XRGB2101010:
 251        case DRM_FORMAT_ARGB2101010:
 252                asyw->image.format = NVC37E_SET_PARAMS_FORMAT_A2R10G10B10;
 253                break;
 254        case DRM_FORMAT_XBGR16161616F:
 255        case DRM_FORMAT_ABGR16161616F:
 256                asyw->image.format = NV507C_SURFACE_SET_PARAMS_FORMAT_RF16_GF16_BF16_AF16;
 257                break;
 258        default:
 259                return -EINVAL;
 260        }
 261
 262        asyw->image.colorspace = NV507E_SURFACE_SET_PARAMS_COLOR_SPACE_RGB;
 263        return 0;
 264}
 265
 266static int
 267nv50_wndw_atomic_check_acquire(struct nv50_wndw *wndw, bool modeset,
 268                               struct nv50_wndw_atom *armw,
 269                               struct nv50_wndw_atom *asyw,
 270                               struct nv50_head_atom *asyh)
 271{
 272        struct drm_framebuffer *fb = asyw->state.fb;
 273        struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
 274        uint8_t kind;
 275        uint32_t tile_mode;
 276        int ret;
 277
 278        NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
 279
 280        if (fb != armw->state.fb || !armw->visible || modeset) {
 281                nouveau_framebuffer_get_layout(fb, &tile_mode, &kind);
 282
 283                asyw->image.w = fb->width;
 284                asyw->image.h = fb->height;
 285                asyw->image.kind = kind;
 286
 287                ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
 288                if (ret) {
 289                        ret = nv50_wndw_atomic_check_acquire_yuv(asyw);
 290                        if (ret)
 291                                return ret;
 292                }
 293
 294                if (asyw->image.kind) {
 295                        asyw->image.layout = NV507C_SURFACE_SET_STORAGE_MEMORY_LAYOUT_BLOCKLINEAR;
 296                        if (drm->client.device.info.chipset >= 0xc0)
 297                                asyw->image.blockh = tile_mode >> 4;
 298                        else
 299                                asyw->image.blockh = tile_mode;
 300                        asyw->image.blocks[0] = fb->pitches[0] / 64;
 301                        asyw->image.pitch[0] = 0;
 302                } else {
 303                        asyw->image.layout = NV507C_SURFACE_SET_STORAGE_MEMORY_LAYOUT_PITCH;
 304                        asyw->image.blockh = NV507C_SURFACE_SET_STORAGE_BLOCK_HEIGHT_ONE_GOB;
 305                        asyw->image.blocks[0] = 0;
 306                        asyw->image.pitch[0] = fb->pitches[0];
 307                }
 308
 309                if (!asyh->state.async_flip)
 310                        asyw->image.interval = 1;
 311                else
 312                        asyw->image.interval = 0;
 313
 314                if (asyw->image.interval)
 315                        asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_NON_TEARING;
 316                else
 317                        asyw->image.mode = NV507C_SET_PRESENT_CONTROL_BEGIN_MODE_IMMEDIATE;
 318
 319                asyw->set.image = wndw->func->image_set != NULL;
 320        }
 321
 322        if (wndw->func->scale_set) {
 323                asyw->scale.sx = asyw->state.src_x >> 16;
 324                asyw->scale.sy = asyw->state.src_y >> 16;
 325                asyw->scale.sw = asyw->state.src_w >> 16;
 326                asyw->scale.sh = asyw->state.src_h >> 16;
 327                asyw->scale.dw = asyw->state.crtc_w;
 328                asyw->scale.dh = asyw->state.crtc_h;
 329                if (memcmp(&armw->scale, &asyw->scale, sizeof(asyw->scale)))
 330                        asyw->set.scale = true;
 331        }
 332
 333        if (wndw->func->blend_set) {
 334                asyw->blend.depth = 255 - asyw->state.normalized_zpos;
 335                asyw->blend.k1 = asyw->state.alpha >> 8;
 336                switch (asyw->state.pixel_blend_mode) {
 337                case DRM_MODE_BLEND_PREMULTI:
 338                        asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1;
 339                        asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1_TIMES_SRC;
 340                        break;
 341                case DRM_MODE_BLEND_COVERAGE:
 342                        asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1_TIMES_SRC;
 343                        asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1_TIMES_SRC;
 344                        break;
 345                case DRM_MODE_BLEND_PIXEL_NONE:
 346                default:
 347                        asyw->blend.src_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_SRC_COLOR_FACTOR_MATCH_SELECT_K1;
 348                        asyw->blend.dst_color = NVC37E_SET_COMPOSITION_FACTOR_SELECT_DST_COLOR_FACTOR_MATCH_SELECT_NEG_K1;
 349                        break;
 350                }
 351                if (memcmp(&armw->blend, &asyw->blend, sizeof(asyw->blend)))
 352                        asyw->set.blend = true;
 353        }
 354
 355        if (wndw->immd) {
 356                asyw->point.x = asyw->state.crtc_x;
 357                asyw->point.y = asyw->state.crtc_y;
 358                if (memcmp(&armw->point, &asyw->point, sizeof(asyw->point)))
 359                        asyw->set.point = true;
 360        }
 361
 362        return wndw->func->acquire(wndw, asyw, asyh);
 363}
 364
 365static int
 366nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw,
 367                           struct nv50_wndw_atom *armw,
 368                           struct nv50_wndw_atom *asyw,
 369                           struct nv50_head_atom *asyh)
 370{
 371        struct drm_property_blob *ilut = asyh->state.degamma_lut;
 372
 373        /* I8 format without an input LUT makes no sense, and the
 374         * HW error-checks for this.
 375         *
 376         * In order to handle legacy gamma, when there's no input
 377         * LUT we need to steal the output LUT and use it instead.
 378         */
 379        if (!ilut && asyw->state.fb->format->format == DRM_FORMAT_C8) {
 380                /* This should be an error, but there's legacy clients
 381                 * that do a modeset before providing a gamma table.
 382                 *
 383                 * We keep the window disabled to avoid angering HW.
 384                 */
 385                if (!(ilut = asyh->state.gamma_lut)) {
 386                        asyw->visible = false;
 387                        return 0;
 388                }
 389
 390                if (wndw->func->ilut)
 391                        asyh->wndw.olut |= BIT(wndw->id);
 392        } else {
 393                asyh->wndw.olut &= ~BIT(wndw->id);
 394        }
 395
 396        if (!ilut && wndw->func->ilut_identity &&
 397            asyw->state.fb->format->format != DRM_FORMAT_XBGR16161616F &&
 398            asyw->state.fb->format->format != DRM_FORMAT_ABGR16161616F) {
 399                static struct drm_property_blob dummy = {};
 400                ilut = &dummy;
 401        }
 402
 403        /* Recalculate LUT state. */
 404        memset(&asyw->xlut, 0x00, sizeof(asyw->xlut));
 405        if ((asyw->ilut = wndw->func->ilut ? ilut : NULL)) {
 406                if (!wndw->func->ilut(wndw, asyw, drm_color_lut_size(ilut))) {
 407                        DRM_DEBUG_KMS("Invalid ilut\n");
 408                        return -EINVAL;
 409                }
 410                asyw->xlut.handle = wndw->wndw.vram.handle;
 411                asyw->xlut.i.buffer = !asyw->xlut.i.buffer;
 412                asyw->set.xlut = true;
 413        } else {
 414                asyw->clr.xlut = armw->xlut.handle != 0;
 415        }
 416
 417        /* Handle setting base SET_OUTPUT_LUT_LO_ENABLE_USE_CORE_LUT. */
 418        if (wndw->func->olut_core &&
 419            (!armw->visible || (armw->xlut.handle && !asyw->xlut.handle)))
 420                asyw->set.xlut = true;
 421
 422        if (wndw->func->csc && asyh->state.ctm) {
 423                const struct drm_color_ctm *ctm = asyh->state.ctm->data;
 424                wndw->func->csc(wndw, asyw, ctm);
 425                asyw->csc.valid = true;
 426                asyw->set.csc = true;
 427        } else {
 428                asyw->csc.valid = false;
 429                asyw->clr.csc = armw->csc.valid;
 430        }
 431
 432        /* Can't do an immediate flip while changing the LUT. */
 433        asyh->state.async_flip = false;
 434        return 0;
 435}
 436
 437static int
 438nv50_wndw_atomic_check(struct drm_plane *plane,
 439                       struct drm_atomic_state *state)
 440{
 441        struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 442                                                                                 plane);
 443        struct nouveau_drm *drm = nouveau_drm(plane->dev);
 444        struct nv50_wndw *wndw = nv50_wndw(plane);
 445        struct nv50_wndw_atom *armw = nv50_wndw_atom(wndw->plane.state);
 446        struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 447        struct nv50_head_atom *harm = NULL, *asyh = NULL;
 448        bool modeset = false;
 449        int ret;
 450
 451        NV_ATOMIC(drm, "%s atomic_check\n", plane->name);
 452
 453        /* Fetch the assembly state for the head the window will belong to,
 454         * and determine whether the window will be visible.
 455         */
 456        if (asyw->state.crtc) {
 457                asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 458                if (IS_ERR(asyh))
 459                        return PTR_ERR(asyh);
 460                modeset = drm_atomic_crtc_needs_modeset(&asyh->state);
 461                asyw->visible = asyh->state.active;
 462        } else {
 463                asyw->visible = false;
 464        }
 465
 466        /* Fetch assembly state for the head the window used to belong to. */
 467        if (armw->state.crtc) {
 468                harm = nv50_head_atom_get(asyw->state.state, armw->state.crtc);
 469                if (IS_ERR(harm))
 470                        return PTR_ERR(harm);
 471        }
 472
 473        /* LUT configuration can potentially cause the window to be disabled. */
 474        if (asyw->visible && wndw->func->xlut_set &&
 475            (!armw->visible ||
 476             asyh->state.color_mgmt_changed ||
 477             asyw->state.fb->format->format !=
 478             armw->state.fb->format->format)) {
 479                ret = nv50_wndw_atomic_check_lut(wndw, armw, asyw, asyh);
 480                if (ret)
 481                        return ret;
 482        }
 483
 484        /* Calculate new window state. */
 485        if (asyw->visible) {
 486                ret = nv50_wndw_atomic_check_acquire(wndw, modeset,
 487                                                     armw, asyw, asyh);
 488                if (ret)
 489                        return ret;
 490
 491                asyh->wndw.mask |= BIT(wndw->id);
 492        } else
 493        if (armw->visible) {
 494                nv50_wndw_atomic_check_release(wndw, asyw, harm);
 495                harm->wndw.mask &= ~BIT(wndw->id);
 496        } else {
 497                return 0;
 498        }
 499
 500        /* Aside from the obvious case where the window is actively being
 501         * disabled, we might also need to temporarily disable the window
 502         * when performing certain modeset operations.
 503         */
 504        if (!asyw->visible || modeset) {
 505                asyw->clr.ntfy = armw->ntfy.handle != 0;
 506                asyw->clr.sema = armw->sema.handle != 0;
 507                asyw->clr.xlut = armw->xlut.handle != 0;
 508                if (asyw->clr.xlut && asyw->visible)
 509                        asyw->set.xlut = asyw->xlut.handle != 0;
 510                asyw->clr.csc  = armw->csc.valid;
 511                if (wndw->func->image_clr)
 512                        asyw->clr.image = armw->image.handle[0] != 0;
 513        }
 514
 515        return 0;
 516}
 517
 518static void
 519nv50_wndw_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state)
 520{
 521        struct nouveau_drm *drm = nouveau_drm(plane->dev);
 522        struct nouveau_bo *nvbo;
 523
 524        NV_ATOMIC(drm, "%s cleanup: %p\n", plane->name, old_state->fb);
 525        if (!old_state->fb)
 526                return;
 527
 528        nvbo = nouveau_gem_object(old_state->fb->obj[0]);
 529        nouveau_bo_unpin(nvbo);
 530}
 531
 532static int
 533nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 534{
 535        struct drm_framebuffer *fb = state->fb;
 536        struct nouveau_drm *drm = nouveau_drm(plane->dev);
 537        struct nv50_wndw *wndw = nv50_wndw(plane);
 538        struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 539        struct nouveau_bo *nvbo;
 540        struct nv50_head_atom *asyh;
 541        struct nv50_wndw_ctxdma *ctxdma;
 542        int ret;
 543
 544        NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, fb);
 545        if (!asyw->state.fb)
 546                return 0;
 547
 548        nvbo = nouveau_gem_object(fb->obj[0]);
 549        ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true);
 550        if (ret)
 551                return ret;
 552
 553        if (wndw->ctxdma.parent) {
 554                ctxdma = nv50_wndw_ctxdma_new(wndw, fb);
 555                if (IS_ERR(ctxdma)) {
 556                        nouveau_bo_unpin(nvbo);
 557                        return PTR_ERR(ctxdma);
 558                }
 559
 560                if (asyw->visible)
 561                        asyw->image.handle[0] = ctxdma->object.handle;
 562        }
 563
 564        asyw->state.fence = dma_resv_get_excl_unlocked(nvbo->bo.base.resv);
 565        asyw->image.offset[0] = nvbo->offset;
 566
 567        if (wndw->func->prepare) {
 568                asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc);
 569                if (IS_ERR(asyh))
 570                        return PTR_ERR(asyh);
 571
 572                wndw->func->prepare(wndw, asyh, asyw);
 573        }
 574
 575        return 0;
 576}
 577
 578static const struct drm_plane_helper_funcs
 579nv50_wndw_helper = {
 580        .prepare_fb = nv50_wndw_prepare_fb,
 581        .cleanup_fb = nv50_wndw_cleanup_fb,
 582        .atomic_check = nv50_wndw_atomic_check,
 583};
 584
 585static void
 586nv50_wndw_atomic_destroy_state(struct drm_plane *plane,
 587                               struct drm_plane_state *state)
 588{
 589        struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
 590        __drm_atomic_helper_plane_destroy_state(&asyw->state);
 591        kfree(asyw);
 592}
 593
 594static struct drm_plane_state *
 595nv50_wndw_atomic_duplicate_state(struct drm_plane *plane)
 596{
 597        struct nv50_wndw_atom *armw = nv50_wndw_atom(plane->state);
 598        struct nv50_wndw_atom *asyw;
 599        if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL)))
 600                return NULL;
 601        __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state);
 602        asyw->sema = armw->sema;
 603        asyw->ntfy = armw->ntfy;
 604        asyw->ilut = NULL;
 605        asyw->xlut = armw->xlut;
 606        asyw->csc  = armw->csc;
 607        asyw->image = armw->image;
 608        asyw->point = armw->point;
 609        asyw->clr.mask = 0;
 610        asyw->set.mask = 0;
 611        return &asyw->state;
 612}
 613
 614static int
 615nv50_wndw_zpos_default(struct drm_plane *plane)
 616{
 617        return (plane->type == DRM_PLANE_TYPE_PRIMARY) ? 0 :
 618               (plane->type == DRM_PLANE_TYPE_OVERLAY) ? 1 : 255;
 619}
 620
 621static void
 622nv50_wndw_reset(struct drm_plane *plane)
 623{
 624        struct nv50_wndw_atom *asyw;
 625
 626        if (WARN_ON(!(asyw = kzalloc(sizeof(*asyw), GFP_KERNEL))))
 627                return;
 628
 629        if (plane->state)
 630                plane->funcs->atomic_destroy_state(plane, plane->state);
 631
 632        __drm_atomic_helper_plane_reset(plane, &asyw->state);
 633        plane->state->zpos = nv50_wndw_zpos_default(plane);
 634        plane->state->normalized_zpos = nv50_wndw_zpos_default(plane);
 635}
 636
 637static void
 638nv50_wndw_destroy(struct drm_plane *plane)
 639{
 640        struct nv50_wndw *wndw = nv50_wndw(plane);
 641        struct nv50_wndw_ctxdma *ctxdma, *ctxtmp;
 642
 643        list_for_each_entry_safe(ctxdma, ctxtmp, &wndw->ctxdma.list, head) {
 644                nv50_wndw_ctxdma_del(ctxdma);
 645        }
 646
 647        nvif_notify_dtor(&wndw->notify);
 648        nv50_dmac_destroy(&wndw->wimm);
 649        nv50_dmac_destroy(&wndw->wndw);
 650
 651        nv50_lut_fini(&wndw->ilut);
 652
 653        drm_plane_cleanup(&wndw->plane);
 654        kfree(wndw);
 655}
 656
 657/* This function assumes the format has already been validated against the plane
 658 * and the modifier was validated against the device-wides modifier list at FB
 659 * creation time.
 660 */
 661static bool nv50_plane_format_mod_supported(struct drm_plane *plane,
 662                                            u32 format, u64 modifier)
 663{
 664        struct nouveau_drm *drm = nouveau_drm(plane->dev);
 665        uint8_t i;
 666
 667        if (drm->client.device.info.chipset < 0xc0) {
 668                const struct drm_format_info *info = drm_format_info(format);
 669                const uint8_t kind = (modifier >> 12) & 0xff;
 670
 671                if (!format) return false;
 672
 673                for (i = 0; i < info->num_planes; i++)
 674                        if ((info->cpp[i] != 4) && kind != 0x70) return false;
 675        }
 676
 677        return true;
 678}
 679
 680const struct drm_plane_funcs
 681nv50_wndw = {
 682        .update_plane = drm_atomic_helper_update_plane,
 683        .disable_plane = drm_atomic_helper_disable_plane,
 684        .destroy = nv50_wndw_destroy,
 685        .reset = nv50_wndw_reset,
 686        .atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
 687        .atomic_destroy_state = nv50_wndw_atomic_destroy_state,
 688        .format_mod_supported = nv50_plane_format_mod_supported,
 689};
 690
 691static int
 692nv50_wndw_notify(struct nvif_notify *notify)
 693{
 694        return NVIF_NOTIFY_KEEP;
 695}
 696
 697void
 698nv50_wndw_fini(struct nv50_wndw *wndw)
 699{
 700        nvif_notify_put(&wndw->notify);
 701}
 702
 703void
 704nv50_wndw_init(struct nv50_wndw *wndw)
 705{
 706        nvif_notify_get(&wndw->notify);
 707}
 708
 709static const u64 nv50_cursor_format_modifiers[] = {
 710        DRM_FORMAT_MOD_LINEAR,
 711        DRM_FORMAT_MOD_INVALID,
 712};
 713
 714int
 715nv50_wndw_new_(const struct nv50_wndw_func *func, struct drm_device *dev,
 716               enum drm_plane_type type, const char *name, int index,
 717               const u32 *format, u32 heads,
 718               enum nv50_disp_interlock_type interlock_type, u32 interlock_data,
 719               struct nv50_wndw **pwndw)
 720{
 721        struct nouveau_drm *drm = nouveau_drm(dev);
 722        struct nvif_mmu *mmu = &drm->client.mmu;
 723        struct nv50_disp *disp = nv50_disp(dev);
 724        struct nv50_wndw *wndw;
 725        const u64 *format_modifiers;
 726        int nformat;
 727        int ret;
 728
 729        if (!(wndw = *pwndw = kzalloc(sizeof(*wndw), GFP_KERNEL)))
 730                return -ENOMEM;
 731        wndw->func = func;
 732        wndw->id = index;
 733        wndw->interlock.type = interlock_type;
 734        wndw->interlock.data = interlock_data;
 735
 736        wndw->ctxdma.parent = &wndw->wndw.base.user;
 737        INIT_LIST_HEAD(&wndw->ctxdma.list);
 738
 739        for (nformat = 0; format[nformat]; nformat++);
 740
 741        if (type == DRM_PLANE_TYPE_CURSOR)
 742                format_modifiers = nv50_cursor_format_modifiers;
 743        else
 744                format_modifiers = nouveau_display(dev)->format_modifiers;
 745
 746        ret = drm_universal_plane_init(dev, &wndw->plane, heads, &nv50_wndw, format, nformat,
 747                                       format_modifiers, type, "%s-%d", name, index);
 748        if (ret) {
 749                kfree(*pwndw);
 750                *pwndw = NULL;
 751                return ret;
 752        }
 753
 754        drm_plane_helper_add(&wndw->plane, &nv50_wndw_helper);
 755
 756        if (wndw->func->ilut) {
 757                ret = nv50_lut_init(disp, mmu, &wndw->ilut);
 758                if (ret)
 759                        return ret;
 760        }
 761
 762        wndw->notify.func = nv50_wndw_notify;
 763
 764        if (wndw->func->blend_set) {
 765                ret = drm_plane_create_zpos_property(&wndw->plane,
 766                                nv50_wndw_zpos_default(&wndw->plane), 0, 254);
 767                if (ret)
 768                        return ret;
 769
 770                ret = drm_plane_create_alpha_property(&wndw->plane);
 771                if (ret)
 772                        return ret;
 773
 774                ret = drm_plane_create_blend_mode_property(&wndw->plane,
 775                                BIT(DRM_MODE_BLEND_PIXEL_NONE) |
 776                                BIT(DRM_MODE_BLEND_PREMULTI) |
 777                                BIT(DRM_MODE_BLEND_COVERAGE));
 778                if (ret)
 779                        return ret;
 780        } else {
 781                ret = drm_plane_create_zpos_immutable_property(&wndw->plane,
 782                                nv50_wndw_zpos_default(&wndw->plane));
 783                if (ret)
 784                        return ret;
 785        }
 786
 787        return 0;
 788}
 789
 790int
 791nv50_wndw_new(struct nouveau_drm *drm, enum drm_plane_type type, int index,
 792              struct nv50_wndw **pwndw)
 793{
 794        struct {
 795                s32 oclass;
 796                int version;
 797                int (*new)(struct nouveau_drm *, enum drm_plane_type,
 798                           int, s32, struct nv50_wndw **);
 799        } wndws[] = {
 800                { GA102_DISP_WINDOW_CHANNEL_DMA, 0, wndwc67e_new },
 801                { TU102_DISP_WINDOW_CHANNEL_DMA, 0, wndwc57e_new },
 802                { GV100_DISP_WINDOW_CHANNEL_DMA, 0, wndwc37e_new },
 803                {}
 804        };
 805        struct nv50_disp *disp = nv50_disp(drm->dev);
 806        int cid, ret;
 807
 808        cid = nvif_mclass(&disp->disp->object, wndws);
 809        if (cid < 0) {
 810                NV_ERROR(drm, "No supported window class\n");
 811                return cid;
 812        }
 813
 814        ret = wndws[cid].new(drm, type, index, wndws[cid].oclass, pwndw);
 815        if (ret)
 816                return ret;
 817
 818        return nv50_wimm_init(drm, *pwndw);
 819}
 820