linux/drivers/gpu/drm/nouveau/nouveau_display.c
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   1/*
   2 * Copyright (C) 2008 Maarten Maathuis.
   3 * All Rights Reserved.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining
   6 * a copy of this software and associated documentation files (the
   7 * "Software"), to deal in the Software without restriction, including
   8 * without limitation the rights to use, copy, modify, merge, publish,
   9 * distribute, sublicense, and/or sell copies of the Software, and to
  10 * permit persons to whom the Software is furnished to do so, subject to
  11 * the following conditions:
  12 *
  13 * The above copyright notice and this permission notice (including the
  14 * next paragraph) shall be included in all copies or substantial
  15 * portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 *
  25 */
  26
  27#include <acpi/video.h>
  28
  29#include <drm/drm_atomic.h>
  30#include <drm/drm_atomic_helper.h>
  31#include <drm/drm_crtc_helper.h>
  32#include <drm/drm_fb_helper.h>
  33#include <drm/drm_fourcc.h>
  34#include <drm/drm_gem_framebuffer_helper.h>
  35#include <drm/drm_probe_helper.h>
  36#include <drm/drm_vblank.h>
  37
  38#include "nouveau_fbcon.h"
  39#include "nouveau_crtc.h"
  40#include "nouveau_gem.h"
  41#include "nouveau_connector.h"
  42#include "nv50_display.h"
  43
  44#include <nvif/class.h>
  45#include <nvif/cl0046.h>
  46#include <nvif/event.h>
  47#include <dispnv50/crc.h>
  48
  49int
  50nouveau_display_vblank_enable(struct drm_crtc *crtc)
  51{
  52        struct nouveau_crtc *nv_crtc;
  53
  54        nv_crtc = nouveau_crtc(crtc);
  55        nvif_notify_get(&nv_crtc->vblank);
  56
  57        return 0;
  58}
  59
  60void
  61nouveau_display_vblank_disable(struct drm_crtc *crtc)
  62{
  63        struct nouveau_crtc *nv_crtc;
  64
  65        nv_crtc = nouveau_crtc(crtc);
  66        nvif_notify_put(&nv_crtc->vblank);
  67}
  68
  69static inline int
  70calc(int blanks, int blanke, int total, int line)
  71{
  72        if (blanke >= blanks) {
  73                if (line >= blanks)
  74                        line -= total;
  75        } else {
  76                if (line >= blanks)
  77                        line -= total;
  78                line -= blanke + 1;
  79        }
  80        return line;
  81}
  82
  83static bool
  84nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  85                                ktime_t *stime, ktime_t *etime)
  86{
  87        struct {
  88                struct nv04_disp_mthd_v0 base;
  89                struct nv04_disp_scanoutpos_v0 scan;
  90        } args = {
  91                .base.method = NV04_DISP_SCANOUTPOS,
  92                .base.head = nouveau_crtc(crtc)->index,
  93        };
  94        struct nouveau_display *disp = nouveau_display(crtc->dev);
  95        struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
  96        int retry = 20;
  97        bool ret = false;
  98
  99        do {
 100                ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args));
 101                if (ret != 0)
 102                        return false;
 103
 104                if (args.scan.vline) {
 105                        ret = true;
 106                        break;
 107                }
 108
 109                if (retry) ndelay(vblank->linedur_ns);
 110        } while (retry--);
 111
 112        *hpos = args.scan.hline;
 113        *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 114                     args.scan.vtotal, args.scan.vline);
 115        if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 116        if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 117
 118        return ret;
 119}
 120
 121bool
 122nouveau_display_scanoutpos(struct drm_crtc *crtc,
 123                           bool in_vblank_irq, int *vpos, int *hpos,
 124                           ktime_t *stime, ktime_t *etime,
 125                           const struct drm_display_mode *mode)
 126{
 127        return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 128                                               stime, etime);
 129}
 130
 131static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 132        .destroy = drm_gem_fb_destroy,
 133        .create_handle = drm_gem_fb_create_handle,
 134};
 135
 136static void
 137nouveau_decode_mod(struct nouveau_drm *drm,
 138                   uint64_t modifier,
 139                   uint32_t *tile_mode,
 140                   uint8_t *kind)
 141{
 142        struct nouveau_display *disp = nouveau_display(drm->dev);
 143        BUG_ON(!tile_mode || !kind);
 144
 145        if (modifier == DRM_FORMAT_MOD_LINEAR) {
 146                /* tile_mode will not be used in this case */
 147                *tile_mode = 0;
 148                *kind = 0;
 149        } else {
 150                /*
 151                 * Extract the block height and kind from the corresponding
 152                 * modifier fields.  See drm_fourcc.h for details.
 153                 */
 154
 155                if ((modifier & (0xffull << 12)) == 0ull) {
 156                        /* Legacy modifier.  Translate to this dev's 'kind.' */
 157                        modifier |= disp->format_modifiers[0] & (0xffull << 12);
 158                }
 159
 160                *tile_mode = (uint32_t)(modifier & 0xF);
 161                *kind = (uint8_t)((modifier >> 12) & 0xFF);
 162
 163                if (drm->client.device.info.chipset >= 0xc0)
 164                        *tile_mode <<= 4;
 165        }
 166}
 167
 168void
 169nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
 170                               uint32_t *tile_mode,
 171                               uint8_t *kind)
 172{
 173        if (fb->flags & DRM_MODE_FB_MODIFIERS) {
 174                struct nouveau_drm *drm = nouveau_drm(fb->dev);
 175
 176                nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
 177        } else {
 178                const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 179
 180                *tile_mode = nvbo->mode;
 181                *kind = nvbo->kind;
 182        }
 183}
 184
 185static const u64 legacy_modifiers[] = {
 186        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0),
 187        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1),
 188        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2),
 189        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3),
 190        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4),
 191        DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5),
 192        DRM_FORMAT_MOD_INVALID
 193};
 194
 195static int
 196nouveau_validate_decode_mod(struct nouveau_drm *drm,
 197                            uint64_t modifier,
 198                            uint32_t *tile_mode,
 199                            uint8_t *kind)
 200{
 201        struct nouveau_display *disp = nouveau_display(drm->dev);
 202        int mod;
 203
 204        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 205                return -EINVAL;
 206        }
 207
 208        BUG_ON(!disp->format_modifiers);
 209
 210        for (mod = 0;
 211             (disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 212             (disp->format_modifiers[mod] != modifier);
 213             mod++);
 214
 215        if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID) {
 216                for (mod = 0;
 217                     (legacy_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 218                     (legacy_modifiers[mod] != modifier);
 219                     mod++);
 220                if (legacy_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
 221                        return -EINVAL;
 222        }
 223
 224        nouveau_decode_mod(drm, modifier, tile_mode, kind);
 225
 226        return 0;
 227}
 228
 229static inline uint32_t
 230nouveau_get_width_in_blocks(uint32_t stride)
 231{
 232        /* GOBs per block in the x direction is always one, and GOBs are
 233         * 64 bytes wide
 234         */
 235        static const uint32_t log_block_width = 6;
 236
 237        return (stride + (1 << log_block_width) - 1) >> log_block_width;
 238}
 239
 240static inline uint32_t
 241nouveau_get_height_in_blocks(struct nouveau_drm *drm,
 242                             uint32_t height,
 243                             uint32_t log_block_height_in_gobs)
 244{
 245        uint32_t log_gob_height;
 246        uint32_t log_block_height;
 247
 248        BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
 249
 250        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
 251                log_gob_height = 2;
 252        else
 253                log_gob_height = 3;
 254
 255        log_block_height = log_block_height_in_gobs + log_gob_height;
 256
 257        return (height + (1 << log_block_height) - 1) >> log_block_height;
 258}
 259
 260static int
 261nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
 262                      uint32_t offset, uint32_t stride, uint32_t h,
 263                      uint32_t tile_mode)
 264{
 265        uint32_t gob_size, bw, bh;
 266        uint64_t bl_size;
 267
 268        BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
 269
 270        if (drm->client.device.info.chipset >= 0xc0) {
 271                if (tile_mode & 0xF)
 272                        return -EINVAL;
 273                tile_mode >>= 4;
 274        }
 275
 276        if (tile_mode & 0xFFFFFFF0)
 277                return -EINVAL;
 278
 279        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
 280                gob_size = 256;
 281        else
 282                gob_size = 512;
 283
 284        bw = nouveau_get_width_in_blocks(stride);
 285        bh = nouveau_get_height_in_blocks(drm, h, tile_mode);
 286
 287        bl_size = bw * bh * (1 << tile_mode) * gob_size;
 288
 289        DRM_DEBUG_KMS("offset=%u stride=%u h=%u tile_mode=0x%02x bw=%u bh=%u gob_size=%u bl_size=%llu size=%zu\n",
 290                      offset, stride, h, tile_mode, bw, bh, gob_size, bl_size,
 291                      nvbo->bo.base.size);
 292
 293        if (bl_size + offset > nvbo->bo.base.size)
 294                return -ERANGE;
 295
 296        return 0;
 297}
 298
 299int
 300nouveau_framebuffer_new(struct drm_device *dev,
 301                        const struct drm_mode_fb_cmd2 *mode_cmd,
 302                        struct drm_gem_object *gem,
 303                        struct drm_framebuffer **pfb)
 304{
 305        struct nouveau_drm *drm = nouveau_drm(dev);
 306        struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 307        struct drm_framebuffer *fb;
 308        const struct drm_format_info *info;
 309        unsigned int width, height, i;
 310        uint32_t tile_mode;
 311        uint8_t kind;
 312        int ret;
 313
 314        /* YUV overlays have special requirements pre-NV50 */
 315        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
 316
 317            (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
 318             mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
 319             mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
 320             mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
 321            (mode_cmd->pitches[0] & 0x3f || /* align 64 */
 322             mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
 323             (mode_cmd->pitches[1] && /* pitches for planes must match */
 324              mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
 325                struct drm_format_name_buf format_name;
 326                DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
 327                              drm_get_format_name(mode_cmd->pixel_format,
 328                                                  &format_name),
 329                              mode_cmd->pitches[0],
 330                              mode_cmd->pitches[1]);
 331                return -EINVAL;
 332        }
 333
 334        if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
 335                if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
 336                                                &tile_mode, &kind)) {
 337                        DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
 338                                      mode_cmd->modifier[0]);
 339                        return -EINVAL;
 340                }
 341        } else {
 342                tile_mode = nvbo->mode;
 343                kind = nvbo->kind;
 344        }
 345
 346        info = drm_get_format_info(dev, mode_cmd);
 347
 348        for (i = 0; i < info->num_planes; i++) {
 349                width = drm_format_info_plane_width(info,
 350                                                    mode_cmd->width,
 351                                                    i);
 352                height = drm_format_info_plane_height(info,
 353                                                      mode_cmd->height,
 354                                                      i);
 355
 356                if (kind) {
 357                        ret = nouveau_check_bl_size(drm, nvbo,
 358                                                    mode_cmd->offsets[i],
 359                                                    mode_cmd->pitches[i],
 360                                                    height, tile_mode);
 361                        if (ret)
 362                                return ret;
 363                } else {
 364                        uint32_t size = mode_cmd->pitches[i] * height;
 365
 366                        if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
 367                                return -ERANGE;
 368                }
 369        }
 370
 371        if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 372                return -ENOMEM;
 373
 374        drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 375        fb->obj[0] = gem;
 376
 377        ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 378        if (ret)
 379                kfree(fb);
 380        return ret;
 381}
 382
 383struct drm_framebuffer *
 384nouveau_user_framebuffer_create(struct drm_device *dev,
 385                                struct drm_file *file_priv,
 386                                const struct drm_mode_fb_cmd2 *mode_cmd)
 387{
 388        struct drm_framebuffer *fb;
 389        struct drm_gem_object *gem;
 390        int ret;
 391
 392        gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 393        if (!gem)
 394                return ERR_PTR(-ENOENT);
 395
 396        ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 397        if (ret == 0)
 398                return fb;
 399
 400        drm_gem_object_put(gem);
 401        return ERR_PTR(ret);
 402}
 403
 404static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 405        .fb_create = nouveau_user_framebuffer_create,
 406        .output_poll_changed = nouveau_fbcon_output_poll_changed,
 407};
 408
 409
 410struct nouveau_drm_prop_enum_list {
 411        u8 gen_mask;
 412        int type;
 413        char *name;
 414};
 415
 416static struct nouveau_drm_prop_enum_list underscan[] = {
 417        { 6, UNDERSCAN_AUTO, "auto" },
 418        { 6, UNDERSCAN_OFF, "off" },
 419        { 6, UNDERSCAN_ON, "on" },
 420        {}
 421};
 422
 423static struct nouveau_drm_prop_enum_list dither_mode[] = {
 424        { 7, DITHERING_MODE_AUTO, "auto" },
 425        { 7, DITHERING_MODE_OFF, "off" },
 426        { 1, DITHERING_MODE_ON, "on" },
 427        { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 428        { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 429        { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 430        {}
 431};
 432
 433static struct nouveau_drm_prop_enum_list dither_depth[] = {
 434        { 6, DITHERING_DEPTH_AUTO, "auto" },
 435        { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 436        { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 437        {}
 438};
 439
 440#define PROP_ENUM(p,gen,n,list) do {                                           \
 441        struct nouveau_drm_prop_enum_list *l = (list);                         \
 442        int c = 0;                                                             \
 443        while (l->gen_mask) {                                                  \
 444                if (l->gen_mask & (1 << (gen)))                                \
 445                        c++;                                                   \
 446                l++;                                                           \
 447        }                                                                      \
 448        if (c) {                                                               \
 449                p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 450                l = (list);                                                    \
 451                while (p && l->gen_mask) {                                     \
 452                        if (l->gen_mask & (1 << (gen))) {                      \
 453                                drm_property_add_enum(p, l->type, l->name);    \
 454                        }                                                      \
 455                        l++;                                                   \
 456                }                                                              \
 457        }                                                                      \
 458} while(0)
 459
 460void
 461nouveau_display_hpd_resume(struct drm_device *dev)
 462{
 463        struct nouveau_drm *drm = nouveau_drm(dev);
 464
 465        mutex_lock(&drm->hpd_lock);
 466        drm->hpd_pending = ~0;
 467        mutex_unlock(&drm->hpd_lock);
 468
 469        schedule_work(&drm->hpd_work);
 470}
 471
 472static void
 473nouveau_display_hpd_work(struct work_struct *work)
 474{
 475        struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 476        struct drm_device *dev = drm->dev;
 477        struct drm_connector *connector;
 478        struct drm_connector_list_iter conn_iter;
 479        u32 pending;
 480        bool changed = false;
 481
 482        pm_runtime_get_sync(dev->dev);
 483
 484        mutex_lock(&drm->hpd_lock);
 485        pending = drm->hpd_pending;
 486        drm->hpd_pending = 0;
 487        mutex_unlock(&drm->hpd_lock);
 488
 489        /* Nothing to do, exit early without updating the last busy counter */
 490        if (!pending)
 491                goto noop;
 492
 493        mutex_lock(&dev->mode_config.mutex);
 494        drm_connector_list_iter_begin(dev, &conn_iter);
 495
 496        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 497                enum drm_connector_status old_status = connector->status;
 498                u64 old_epoch_counter = connector->epoch_counter;
 499
 500                if (!(pending & drm_connector_mask(connector)))
 501                        continue;
 502
 503                connector->status = drm_helper_probe_detect(connector, NULL,
 504                                                            false);
 505                if (old_epoch_counter == connector->epoch_counter)
 506                        continue;
 507
 508                changed = true;
 509                drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
 510                            connector->base.id, connector->name,
 511                            drm_get_connector_status_name(old_status),
 512                            drm_get_connector_status_name(connector->status),
 513                            old_epoch_counter, connector->epoch_counter);
 514        }
 515
 516        drm_connector_list_iter_end(&conn_iter);
 517        mutex_unlock(&dev->mode_config.mutex);
 518
 519        if (changed)
 520                drm_kms_helper_hotplug_event(dev);
 521
 522        pm_runtime_mark_last_busy(drm->dev->dev);
 523noop:
 524        pm_runtime_put_sync(drm->dev->dev);
 525}
 526
 527#ifdef CONFIG_ACPI
 528
 529static int
 530nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 531                          void *data)
 532{
 533        struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 534        struct acpi_bus_event *info = data;
 535        int ret;
 536
 537        if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 538                if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 539                        ret = pm_runtime_get(drm->dev->dev);
 540                        if (ret == 1 || ret == -EACCES) {
 541                                /* If the GPU is already awake, or in a state
 542                                 * where we can't wake it up, it can handle
 543                                 * it's own hotplug events.
 544                                 */
 545                                pm_runtime_put_autosuspend(drm->dev->dev);
 546                        } else if (ret == 0) {
 547                                /* We've started resuming the GPU already, so
 548                                 * it will handle scheduling a full reprobe
 549                                 * itself
 550                                 */
 551                                NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 552                                pm_runtime_put_noidle(drm->dev->dev);
 553                        } else {
 554                                NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 555                                        ret);
 556                        }
 557
 558                        /* acpi-video should not generate keypresses for this */
 559                        return NOTIFY_BAD;
 560                }
 561        }
 562
 563        return NOTIFY_DONE;
 564}
 565#endif
 566
 567int
 568nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 569{
 570        struct nouveau_display *disp = nouveau_display(dev);
 571        struct drm_connector *connector;
 572        struct drm_connector_list_iter conn_iter;
 573        int ret;
 574
 575        /*
 576         * Enable hotplug interrupts (done as early as possible, since we need
 577         * them for MST)
 578         */
 579        drm_connector_list_iter_begin(dev, &conn_iter);
 580        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 581                struct nouveau_connector *conn = nouveau_connector(connector);
 582                nvif_notify_get(&conn->hpd);
 583        }
 584        drm_connector_list_iter_end(&conn_iter);
 585
 586        ret = disp->init(dev, resume, runtime);
 587        if (ret)
 588                return ret;
 589
 590        /* enable connector detection and polling for connectors without HPD
 591         * support
 592         */
 593        drm_kms_helper_poll_enable(dev);
 594
 595        return ret;
 596}
 597
 598void
 599nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 600{
 601        struct nouveau_display *disp = nouveau_display(dev);
 602        struct nouveau_drm *drm = nouveau_drm(dev);
 603        struct drm_connector *connector;
 604        struct drm_connector_list_iter conn_iter;
 605
 606        if (!suspend) {
 607                if (drm_drv_uses_atomic_modeset(dev))
 608                        drm_atomic_helper_shutdown(dev);
 609                else
 610                        drm_helper_force_disable_all(dev);
 611        }
 612
 613        /* disable hotplug interrupts */
 614        drm_connector_list_iter_begin(dev, &conn_iter);
 615        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 616                struct nouveau_connector *conn = nouveau_connector(connector);
 617                nvif_notify_put(&conn->hpd);
 618        }
 619        drm_connector_list_iter_end(&conn_iter);
 620
 621        if (!runtime)
 622                cancel_work_sync(&drm->hpd_work);
 623
 624        drm_kms_helper_poll_disable(dev);
 625        disp->fini(dev, runtime, suspend);
 626}
 627
 628static void
 629nouveau_display_create_properties(struct drm_device *dev)
 630{
 631        struct nouveau_display *disp = nouveau_display(dev);
 632        int gen;
 633
 634        if (disp->disp.object.oclass < NV50_DISP)
 635                gen = 0;
 636        else
 637        if (disp->disp.object.oclass < GF110_DISP)
 638                gen = 1;
 639        else
 640                gen = 2;
 641
 642        PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 643        PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 644        PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 645
 646        disp->underscan_hborder_property =
 647                drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 648
 649        disp->underscan_vborder_property =
 650                drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 651
 652        if (gen < 1)
 653                return;
 654
 655        /* -90..+90 */
 656        disp->vibrant_hue_property =
 657                drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 658
 659        /* -100..+100 */
 660        disp->color_vibrance_property =
 661                drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 662}
 663
 664int
 665nouveau_display_create(struct drm_device *dev)
 666{
 667        struct nouveau_drm *drm = nouveau_drm(dev);
 668        struct nvkm_device *device = nvxx_device(&drm->client.device);
 669        struct nouveau_display *disp;
 670        int ret;
 671
 672        disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 673        if (!disp)
 674                return -ENOMEM;
 675
 676        drm_mode_config_init(dev);
 677        drm_mode_create_scaling_mode_property(dev);
 678        drm_mode_create_dvi_i_properties(dev);
 679
 680        dev->mode_config.funcs = &nouveau_mode_config_funcs;
 681        dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 682
 683        dev->mode_config.min_width = 0;
 684        dev->mode_config.min_height = 0;
 685        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 686                dev->mode_config.max_width = 2048;
 687                dev->mode_config.max_height = 2048;
 688        } else
 689        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 690                dev->mode_config.max_width = 4096;
 691                dev->mode_config.max_height = 4096;
 692        } else
 693        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 694                dev->mode_config.max_width = 8192;
 695                dev->mode_config.max_height = 8192;
 696        } else {
 697                dev->mode_config.max_width = 16384;
 698                dev->mode_config.max_height = 16384;
 699        }
 700
 701        dev->mode_config.preferred_depth = 24;
 702        dev->mode_config.prefer_shadow = 1;
 703        dev->mode_config.allow_fb_modifiers = true;
 704
 705        if (drm->client.device.info.chipset < 0x11)
 706                dev->mode_config.async_page_flip = false;
 707        else
 708                dev->mode_config.async_page_flip = true;
 709
 710        drm_kms_helper_poll_init(dev);
 711        drm_kms_helper_poll_disable(dev);
 712
 713        if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 714                ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
 715                                     &disp->disp);
 716                if (ret == 0) {
 717                        nouveau_display_create_properties(dev);
 718                        if (disp->disp.object.oclass < NV50_DISP)
 719                                ret = nv04_display_create(dev);
 720                        else
 721                                ret = nv50_display_create(dev);
 722                }
 723        } else {
 724                ret = 0;
 725        }
 726
 727        if (ret)
 728                goto disp_create_err;
 729
 730        drm_mode_config_reset(dev);
 731
 732        if (dev->mode_config.num_crtc) {
 733                ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 734                if (ret)
 735                        goto vblank_err;
 736
 737                if (disp->disp.object.oclass >= NV50_DISP)
 738                        nv50_crc_init(dev);
 739        }
 740
 741        INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 742        mutex_init(&drm->hpd_lock);
 743#ifdef CONFIG_ACPI
 744        drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 745        register_acpi_notifier(&drm->acpi_nb);
 746#endif
 747
 748        return 0;
 749
 750vblank_err:
 751        disp->dtor(dev);
 752disp_create_err:
 753        drm_kms_helper_poll_fini(dev);
 754        drm_mode_config_cleanup(dev);
 755        return ret;
 756}
 757
 758void
 759nouveau_display_destroy(struct drm_device *dev)
 760{
 761        struct nouveau_display *disp = nouveau_display(dev);
 762        struct nouveau_drm *drm = nouveau_drm(dev);
 763
 764#ifdef CONFIG_ACPI
 765        unregister_acpi_notifier(&drm->acpi_nb);
 766#endif
 767
 768        drm_kms_helper_poll_fini(dev);
 769        drm_mode_config_cleanup(dev);
 770
 771        if (disp->dtor)
 772                disp->dtor(dev);
 773
 774        nvif_disp_dtor(&disp->disp);
 775
 776        nouveau_drm(dev)->display = NULL;
 777        mutex_destroy(&drm->hpd_lock);
 778        kfree(disp);
 779}
 780
 781int
 782nouveau_display_suspend(struct drm_device *dev, bool runtime)
 783{
 784        struct nouveau_display *disp = nouveau_display(dev);
 785
 786        if (drm_drv_uses_atomic_modeset(dev)) {
 787                if (!runtime) {
 788                        disp->suspend = drm_atomic_helper_suspend(dev);
 789                        if (IS_ERR(disp->suspend)) {
 790                                int ret = PTR_ERR(disp->suspend);
 791                                disp->suspend = NULL;
 792                                return ret;
 793                        }
 794                }
 795        }
 796
 797        nouveau_display_fini(dev, true, runtime);
 798        return 0;
 799}
 800
 801void
 802nouveau_display_resume(struct drm_device *dev, bool runtime)
 803{
 804        struct nouveau_display *disp = nouveau_display(dev);
 805
 806        nouveau_display_init(dev, true, runtime);
 807
 808        if (drm_drv_uses_atomic_modeset(dev)) {
 809                if (disp->suspend) {
 810                        drm_atomic_helper_resume(dev, disp->suspend);
 811                        disp->suspend = NULL;
 812                }
 813                return;
 814        }
 815}
 816
 817int
 818nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 819                            struct drm_mode_create_dumb *args)
 820{
 821        struct nouveau_cli *cli = nouveau_cli(file_priv);
 822        struct nouveau_bo *bo;
 823        uint32_t domain;
 824        int ret;
 825
 826        args->pitch = roundup(args->width * (args->bpp / 8), 256);
 827        args->size = args->pitch * args->height;
 828        args->size = roundup(args->size, PAGE_SIZE);
 829
 830        /* Use VRAM if there is any ; otherwise fallback to system memory */
 831        if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 832                domain = NOUVEAU_GEM_DOMAIN_VRAM;
 833        else
 834                domain = NOUVEAU_GEM_DOMAIN_GART;
 835
 836        ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 837        if (ret)
 838                return ret;
 839
 840        ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 841        drm_gem_object_put(&bo->bo.base);
 842        return ret;
 843}
 844
 845int
 846nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 847                                struct drm_device *dev,
 848                                uint32_t handle, uint64_t *poffset)
 849{
 850        struct drm_gem_object *gem;
 851
 852        gem = drm_gem_object_lookup(file_priv, handle);
 853        if (gem) {
 854                struct nouveau_bo *bo = nouveau_gem_object(gem);
 855                *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node);
 856                drm_gem_object_put(gem);
 857                return 0;
 858        }
 859
 860        return -ENOENT;
 861}
 862