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                DRM_DEBUG_KMS("Unsuitable framebuffer: format: %p4cc; pitches: 0x%x\n 0x%x\n",
 326                              &mode_cmd->pixel_format,
 327                              mode_cmd->pitches[0], mode_cmd->pitches[1]);
 328                return -EINVAL;
 329        }
 330
 331        if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
 332                if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
 333                                                &tile_mode, &kind)) {
 334                        DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
 335                                      mode_cmd->modifier[0]);
 336                        return -EINVAL;
 337                }
 338        } else {
 339                tile_mode = nvbo->mode;
 340                kind = nvbo->kind;
 341        }
 342
 343        info = drm_get_format_info(dev, mode_cmd);
 344
 345        for (i = 0; i < info->num_planes; i++) {
 346                width = drm_format_info_plane_width(info,
 347                                                    mode_cmd->width,
 348                                                    i);
 349                height = drm_format_info_plane_height(info,
 350                                                      mode_cmd->height,
 351                                                      i);
 352
 353                if (kind) {
 354                        ret = nouveau_check_bl_size(drm, nvbo,
 355                                                    mode_cmd->offsets[i],
 356                                                    mode_cmd->pitches[i],
 357                                                    height, tile_mode);
 358                        if (ret)
 359                                return ret;
 360                } else {
 361                        uint32_t size = mode_cmd->pitches[i] * height;
 362
 363                        if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
 364                                return -ERANGE;
 365                }
 366        }
 367
 368        if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 369                return -ENOMEM;
 370
 371        drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 372        fb->obj[0] = gem;
 373
 374        ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 375        if (ret)
 376                kfree(fb);
 377        return ret;
 378}
 379
 380struct drm_framebuffer *
 381nouveau_user_framebuffer_create(struct drm_device *dev,
 382                                struct drm_file *file_priv,
 383                                const struct drm_mode_fb_cmd2 *mode_cmd)
 384{
 385        struct drm_framebuffer *fb;
 386        struct drm_gem_object *gem;
 387        int ret;
 388
 389        gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 390        if (!gem)
 391                return ERR_PTR(-ENOENT);
 392
 393        ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 394        if (ret == 0)
 395                return fb;
 396
 397        drm_gem_object_put(gem);
 398        return ERR_PTR(ret);
 399}
 400
 401static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 402        .fb_create = nouveau_user_framebuffer_create,
 403        .output_poll_changed = nouveau_fbcon_output_poll_changed,
 404};
 405
 406
 407struct nouveau_drm_prop_enum_list {
 408        u8 gen_mask;
 409        int type;
 410        char *name;
 411};
 412
 413static struct nouveau_drm_prop_enum_list underscan[] = {
 414        { 6, UNDERSCAN_AUTO, "auto" },
 415        { 6, UNDERSCAN_OFF, "off" },
 416        { 6, UNDERSCAN_ON, "on" },
 417        {}
 418};
 419
 420static struct nouveau_drm_prop_enum_list dither_mode[] = {
 421        { 7, DITHERING_MODE_AUTO, "auto" },
 422        { 7, DITHERING_MODE_OFF, "off" },
 423        { 1, DITHERING_MODE_ON, "on" },
 424        { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 425        { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 426        { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 427        {}
 428};
 429
 430static struct nouveau_drm_prop_enum_list dither_depth[] = {
 431        { 6, DITHERING_DEPTH_AUTO, "auto" },
 432        { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 433        { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 434        {}
 435};
 436
 437#define PROP_ENUM(p,gen,n,list) do {                                           \
 438        struct nouveau_drm_prop_enum_list *l = (list);                         \
 439        int c = 0;                                                             \
 440        while (l->gen_mask) {                                                  \
 441                if (l->gen_mask & (1 << (gen)))                                \
 442                        c++;                                                   \
 443                l++;                                                           \
 444        }                                                                      \
 445        if (c) {                                                               \
 446                p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 447                l = (list);                                                    \
 448                while (p && l->gen_mask) {                                     \
 449                        if (l->gen_mask & (1 << (gen))) {                      \
 450                                drm_property_add_enum(p, l->type, l->name);    \
 451                        }                                                      \
 452                        l++;                                                   \
 453                }                                                              \
 454        }                                                                      \
 455} while(0)
 456
 457void
 458nouveau_display_hpd_resume(struct drm_device *dev)
 459{
 460        struct nouveau_drm *drm = nouveau_drm(dev);
 461
 462        mutex_lock(&drm->hpd_lock);
 463        drm->hpd_pending = ~0;
 464        mutex_unlock(&drm->hpd_lock);
 465
 466        schedule_work(&drm->hpd_work);
 467}
 468
 469static void
 470nouveau_display_hpd_work(struct work_struct *work)
 471{
 472        struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 473        struct drm_device *dev = drm->dev;
 474        struct drm_connector *connector;
 475        struct drm_connector_list_iter conn_iter;
 476        u32 pending;
 477        bool changed = false;
 478
 479        pm_runtime_get_sync(dev->dev);
 480
 481        mutex_lock(&drm->hpd_lock);
 482        pending = drm->hpd_pending;
 483        drm->hpd_pending = 0;
 484        mutex_unlock(&drm->hpd_lock);
 485
 486        /* Nothing to do, exit early without updating the last busy counter */
 487        if (!pending)
 488                goto noop;
 489
 490        mutex_lock(&dev->mode_config.mutex);
 491        drm_connector_list_iter_begin(dev, &conn_iter);
 492
 493        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 494                enum drm_connector_status old_status = connector->status;
 495                u64 old_epoch_counter = connector->epoch_counter;
 496
 497                if (!(pending & drm_connector_mask(connector)))
 498                        continue;
 499
 500                connector->status = drm_helper_probe_detect(connector, NULL,
 501                                                            false);
 502                if (old_epoch_counter == connector->epoch_counter)
 503                        continue;
 504
 505                changed = true;
 506                drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
 507                            connector->base.id, connector->name,
 508                            drm_get_connector_status_name(old_status),
 509                            drm_get_connector_status_name(connector->status),
 510                            old_epoch_counter, connector->epoch_counter);
 511        }
 512
 513        drm_connector_list_iter_end(&conn_iter);
 514        mutex_unlock(&dev->mode_config.mutex);
 515
 516        if (changed)
 517                drm_kms_helper_hotplug_event(dev);
 518
 519        pm_runtime_mark_last_busy(drm->dev->dev);
 520noop:
 521        pm_runtime_put_sync(drm->dev->dev);
 522}
 523
 524#ifdef CONFIG_ACPI
 525
 526static int
 527nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 528                          void *data)
 529{
 530        struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 531        struct acpi_bus_event *info = data;
 532        int ret;
 533
 534        if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 535                if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 536                        ret = pm_runtime_get(drm->dev->dev);
 537                        if (ret == 1 || ret == -EACCES) {
 538                                /* If the GPU is already awake, or in a state
 539                                 * where we can't wake it up, it can handle
 540                                 * it's own hotplug events.
 541                                 */
 542                                pm_runtime_put_autosuspend(drm->dev->dev);
 543                        } else if (ret == 0) {
 544                                /* We've started resuming the GPU already, so
 545                                 * it will handle scheduling a full reprobe
 546                                 * itself
 547                                 */
 548                                NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 549                                pm_runtime_put_noidle(drm->dev->dev);
 550                        } else {
 551                                NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 552                                        ret);
 553                        }
 554
 555                        /* acpi-video should not generate keypresses for this */
 556                        return NOTIFY_BAD;
 557                }
 558        }
 559
 560        return NOTIFY_DONE;
 561}
 562#endif
 563
 564int
 565nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 566{
 567        struct nouveau_display *disp = nouveau_display(dev);
 568        struct drm_connector *connector;
 569        struct drm_connector_list_iter conn_iter;
 570        int ret;
 571
 572        /*
 573         * Enable hotplug interrupts (done as early as possible, since we need
 574         * them for MST)
 575         */
 576        drm_connector_list_iter_begin(dev, &conn_iter);
 577        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 578                struct nouveau_connector *conn = nouveau_connector(connector);
 579                nvif_notify_get(&conn->hpd);
 580        }
 581        drm_connector_list_iter_end(&conn_iter);
 582
 583        ret = disp->init(dev, resume, runtime);
 584        if (ret)
 585                return ret;
 586
 587        /* enable connector detection and polling for connectors without HPD
 588         * support
 589         */
 590        drm_kms_helper_poll_enable(dev);
 591
 592        return ret;
 593}
 594
 595void
 596nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 597{
 598        struct nouveau_display *disp = nouveau_display(dev);
 599        struct nouveau_drm *drm = nouveau_drm(dev);
 600        struct drm_connector *connector;
 601        struct drm_connector_list_iter conn_iter;
 602
 603        if (!suspend) {
 604                if (drm_drv_uses_atomic_modeset(dev))
 605                        drm_atomic_helper_shutdown(dev);
 606                else
 607                        drm_helper_force_disable_all(dev);
 608        }
 609
 610        /* disable hotplug interrupts */
 611        drm_connector_list_iter_begin(dev, &conn_iter);
 612        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 613                struct nouveau_connector *conn = nouveau_connector(connector);
 614                nvif_notify_put(&conn->hpd);
 615        }
 616        drm_connector_list_iter_end(&conn_iter);
 617
 618        if (!runtime)
 619                cancel_work_sync(&drm->hpd_work);
 620
 621        drm_kms_helper_poll_disable(dev);
 622        disp->fini(dev, runtime, suspend);
 623}
 624
 625static void
 626nouveau_display_create_properties(struct drm_device *dev)
 627{
 628        struct nouveau_display *disp = nouveau_display(dev);
 629        int gen;
 630
 631        if (disp->disp.object.oclass < NV50_DISP)
 632                gen = 0;
 633        else
 634        if (disp->disp.object.oclass < GF110_DISP)
 635                gen = 1;
 636        else
 637                gen = 2;
 638
 639        PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 640        PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 641        PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 642
 643        disp->underscan_hborder_property =
 644                drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 645
 646        disp->underscan_vborder_property =
 647                drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 648
 649        if (gen < 1)
 650                return;
 651
 652        /* -90..+90 */
 653        disp->vibrant_hue_property =
 654                drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 655
 656        /* -100..+100 */
 657        disp->color_vibrance_property =
 658                drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 659}
 660
 661int
 662nouveau_display_create(struct drm_device *dev)
 663{
 664        struct nouveau_drm *drm = nouveau_drm(dev);
 665        struct nvkm_device *device = nvxx_device(&drm->client.device);
 666        struct nouveau_display *disp;
 667        int ret;
 668
 669        disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 670        if (!disp)
 671                return -ENOMEM;
 672
 673        drm_mode_config_init(dev);
 674        drm_mode_create_scaling_mode_property(dev);
 675        drm_mode_create_dvi_i_properties(dev);
 676
 677        dev->mode_config.funcs = &nouveau_mode_config_funcs;
 678        dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 679
 680        dev->mode_config.min_width = 0;
 681        dev->mode_config.min_height = 0;
 682        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 683                dev->mode_config.max_width = 2048;
 684                dev->mode_config.max_height = 2048;
 685        } else
 686        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 687                dev->mode_config.max_width = 4096;
 688                dev->mode_config.max_height = 4096;
 689        } else
 690        if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 691                dev->mode_config.max_width = 8192;
 692                dev->mode_config.max_height = 8192;
 693        } else {
 694                dev->mode_config.max_width = 16384;
 695                dev->mode_config.max_height = 16384;
 696        }
 697
 698        dev->mode_config.preferred_depth = 24;
 699        dev->mode_config.prefer_shadow = 1;
 700
 701        if (drm->client.device.info.chipset < 0x11)
 702                dev->mode_config.async_page_flip = false;
 703        else
 704                dev->mode_config.async_page_flip = true;
 705
 706        drm_kms_helper_poll_init(dev);
 707        drm_kms_helper_poll_disable(dev);
 708
 709        if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 710                ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
 711                                     &disp->disp);
 712                if (ret == 0) {
 713                        nouveau_display_create_properties(dev);
 714                        if (disp->disp.object.oclass < NV50_DISP)
 715                                ret = nv04_display_create(dev);
 716                        else
 717                                ret = nv50_display_create(dev);
 718                }
 719        } else {
 720                ret = 0;
 721        }
 722
 723        if (ret)
 724                goto disp_create_err;
 725
 726        drm_mode_config_reset(dev);
 727
 728        if (dev->mode_config.num_crtc) {
 729                ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 730                if (ret)
 731                        goto vblank_err;
 732
 733                if (disp->disp.object.oclass >= NV50_DISP)
 734                        nv50_crc_init(dev);
 735        }
 736
 737        INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 738        mutex_init(&drm->hpd_lock);
 739#ifdef CONFIG_ACPI
 740        drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 741        register_acpi_notifier(&drm->acpi_nb);
 742#endif
 743
 744        return 0;
 745
 746vblank_err:
 747        disp->dtor(dev);
 748disp_create_err:
 749        drm_kms_helper_poll_fini(dev);
 750        drm_mode_config_cleanup(dev);
 751        return ret;
 752}
 753
 754void
 755nouveau_display_destroy(struct drm_device *dev)
 756{
 757        struct nouveau_display *disp = nouveau_display(dev);
 758        struct nouveau_drm *drm = nouveau_drm(dev);
 759
 760#ifdef CONFIG_ACPI
 761        unregister_acpi_notifier(&drm->acpi_nb);
 762#endif
 763
 764        drm_kms_helper_poll_fini(dev);
 765        drm_mode_config_cleanup(dev);
 766
 767        if (disp->dtor)
 768                disp->dtor(dev);
 769
 770        nvif_disp_dtor(&disp->disp);
 771
 772        nouveau_drm(dev)->display = NULL;
 773        mutex_destroy(&drm->hpd_lock);
 774        kfree(disp);
 775}
 776
 777int
 778nouveau_display_suspend(struct drm_device *dev, bool runtime)
 779{
 780        struct nouveau_display *disp = nouveau_display(dev);
 781
 782        if (drm_drv_uses_atomic_modeset(dev)) {
 783                if (!runtime) {
 784                        disp->suspend = drm_atomic_helper_suspend(dev);
 785                        if (IS_ERR(disp->suspend)) {
 786                                int ret = PTR_ERR(disp->suspend);
 787                                disp->suspend = NULL;
 788                                return ret;
 789                        }
 790                }
 791        }
 792
 793        nouveau_display_fini(dev, true, runtime);
 794        return 0;
 795}
 796
 797void
 798nouveau_display_resume(struct drm_device *dev, bool runtime)
 799{
 800        struct nouveau_display *disp = nouveau_display(dev);
 801
 802        nouveau_display_init(dev, true, runtime);
 803
 804        if (drm_drv_uses_atomic_modeset(dev)) {
 805                if (disp->suspend) {
 806                        drm_atomic_helper_resume(dev, disp->suspend);
 807                        disp->suspend = NULL;
 808                }
 809                return;
 810        }
 811}
 812
 813int
 814nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 815                            struct drm_mode_create_dumb *args)
 816{
 817        struct nouveau_cli *cli = nouveau_cli(file_priv);
 818        struct nouveau_bo *bo;
 819        uint32_t domain;
 820        int ret;
 821
 822        args->pitch = roundup(args->width * (args->bpp / 8), 256);
 823        args->size = args->pitch * args->height;
 824        args->size = roundup(args->size, PAGE_SIZE);
 825
 826        /* Use VRAM if there is any ; otherwise fallback to system memory */
 827        if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 828                domain = NOUVEAU_GEM_DOMAIN_VRAM;
 829        else
 830                domain = NOUVEAU_GEM_DOMAIN_GART;
 831
 832        ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 833        if (ret)
 834                return ret;
 835
 836        ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 837        drm_gem_object_put(&bo->bo.base);
 838        return ret;
 839}
 840