drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

   1 /*
   2  * Copyright (c) 2014 The Linux Foundation. All rights reserved.
   3  * Copyright (C) 2013 Red Hat
   4  * Author: Rob Clark <robdclark@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published by
   8  * the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "mdp5_kms.h"
  20
  21 #include <linux/sort.h>
  22 #include <drm/drm_mode.h>
  23 #include "drm_crtc.h"
  24 #include "drm_crtc_helper.h"
  25 #include "drm_flip_work.h"
  26
  27 #define CURSOR_WIDTH    64
  28 #define CURSOR_HEIGHT   64
  29
  30 #define SSPP_MAX        (SSPP_RGB3 + 1) /* TODO: Add SSPP_MAX in mdp5.xml.h */
  31
  32 struct mdp5_crtc {
  33         struct drm_crtc base;
  34         char name[8];
  35         int id;
  36         bool enabled;
  37
  38         /* layer mixer used for this CRTC (+ its lock): */
  39 #define GET_LM_ID(crtc_id)      ((crtc_id == 3) ? 5 : crtc_id)
  40         int lm;
  41         spinlock_t lm_lock;     /* protect REG_MDP5_LM_* registers */
  42
  43         /* CTL used for this CRTC: */
  44         struct mdp5_ctl *ctl;
  45
  46         /* if there is a pending flip, these will be non-null: */
  47         struct drm_pending_vblank_event *event;
  48
  49 #define PENDING_CURSOR 0x1
  50 #define PENDING_FLIP   0x2
  51         atomic_t pending;
  52
  53         /* for unref'ing cursor bo's after scanout completes: */
  54         struct drm_flip_work unref_cursor_work;
  55
  56         struct mdp_irq vblank;
  57         struct mdp_irq err;
  58
  59         struct {
  60                 /* protect REG_MDP5_LM_CURSOR* registers and cursor scanout_bo*/
  61                 spinlock_t lock;
  62
  63                 /* current cursor being scanned out: */
  64                 struct drm_gem_object *scanout_bo;
  65                 uint32_t width;
  66                 uint32_t height;
  67         } cursor;
  68 };
  69 #define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
  70
  71 static struct mdp5_kms *get_kms(struct drm_crtc *crtc)
  72 {
  73         struct msm_drm_private *priv = crtc->dev->dev_private;
  74         return to_mdp5_kms(to_mdp_kms(priv->kms));
  75 }
  76
  77 static void request_pending(struct drm_crtc *crtc, uint32_t pending)
  78 {
  79         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
  80
  81         atomic_or(pending, &mdp5_crtc->pending);
  82         mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank);
  83 }
  84
  85 #define mdp5_lm_get_flush(lm)   mdp_ctl_flush_mask_lm(lm)
  86
  87 static void crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
  88 {
  89         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
  90
  91         DBG("%s: flush=%08x", mdp5_crtc->name, flush_mask);
  92         mdp5_ctl_commit(mdp5_crtc->ctl, flush_mask);
  93 }
  94
  95 /*
  96  * flush updates, to make sure hw is updated to new scanout fb,
  97  * so that we can safely queue unref to current fb (ie. next
  98  * vblank we know hw is done w/ previous scanout_fb).
  99  */
 100 static void crtc_flush_all(struct drm_crtc *crtc)
 101 {
 102         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 103         struct drm_plane *plane;
 104         uint32_t flush_mask = 0;
 105
 106         /* we could have already released CTL in the disable path: */
 107         if (!mdp5_crtc->ctl)
 108                 return;
 109
 110         drm_atomic_crtc_for_each_plane(plane, crtc) {
 111                 flush_mask |= mdp5_plane_get_flush(plane);
 112         }
 113         flush_mask |= mdp5_ctl_get_flush(mdp5_crtc->ctl);
 114         flush_mask |= mdp5_lm_get_flush(mdp5_crtc->lm);
 115
 116         crtc_flush(crtc, flush_mask);
 117 }
 118
 119 /* if file!=NULL, this is preclose potential cancel-flip path */
 120 static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 121 {
 122         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 123         struct drm_device *dev = crtc->dev;
 124         struct drm_pending_vblank_event *event;
 125         struct drm_plane *plane;
 126         unsigned long flags;
 127
 128         spin_lock_irqsave(&dev->event_lock, flags);
 129         event = mdp5_crtc->event;
 130         if (event) {
 131                 /* if regular vblank case (!file) or if cancel-flip from
 132                  * preclose on file that requested flip, then send the
 133                  * event:
 134                  */
 135                 if (!file || (event->base.file_priv == file)) {
 136                         mdp5_crtc->event = NULL;
 137                         DBG("%s: send event: %p", mdp5_crtc->name, event);
 138                         drm_send_vblank_event(dev, mdp5_crtc->id, event);
 139                 }
 140         }
 141         spin_unlock_irqrestore(&dev->event_lock, flags);
 142
 143         drm_atomic_crtc_for_each_plane(plane, crtc) {
 144                 mdp5_plane_complete_flip(plane);
 145         }
 146 }
 147
 148 static void unref_cursor_worker(struct drm_flip_work *work, void *val)
 149 {
 150         struct mdp5_crtc *mdp5_crtc =
 151                 container_of(work, struct mdp5_crtc, unref_cursor_work);
 152         struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base);
 153
 154         msm_gem_put_iova(val, mdp5_kms->id);
 155         drm_gem_object_unreference_unlocked(val);
 156 }
 157
 158 static void mdp5_crtc_destroy(struct drm_crtc *crtc)
 159 {
 160         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 161
 162         drm_crtc_cleanup(crtc);
 163         drm_flip_work_cleanup(&mdp5_crtc->unref_cursor_work);
 164
 165         kfree(mdp5_crtc);
 166 }
 167
 168 static bool mdp5_crtc_mode_fixup(struct drm_crtc *crtc,
 169                 const struct drm_display_mode *mode,
 170                 struct drm_display_mode *adjusted_mode)
 171 {
 172         return true;
 173 }
 174
 175 /*
 176  * blend_setup() - blend all the planes of a CRTC
 177  *
 178  * When border is enabled, the border color will ALWAYS be the base layer.
 179  * Therefore, the first plane (private RGB pipe) will start at STAGE0.
 180  * If disabled, the first plane starts at STAGE_BASE.
 181  *
 182  * Note:
 183  * Border is not enabled here because the private plane is exactly
 184  * the CRTC resolution.
 185  */
 186 static void blend_setup(struct drm_crtc *crtc)
 187 {
 188         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 189         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 190         struct drm_plane *plane;
 191         const struct mdp5_cfg_hw *hw_cfg;
 192         uint32_t lm = mdp5_crtc->lm, blend_cfg = 0;
 193         unsigned long flags;
 194 #define blender(stage)  ((stage) - STAGE_BASE)
 195
 196         hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
 197
 198         spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
 199
 200         /* ctl could be released already when we are shutting down: */
 201         if (!mdp5_crtc->ctl)
 202                 goto out;
 203
 204         drm_atomic_crtc_for_each_plane(plane, crtc) {
 205                 enum mdp_mixer_stage_id stage =
 206                         to_mdp5_plane_state(plane->state)->stage;
 207
 208                 /*
 209                  * Note: This cannot happen with current implementation but
 210                  * we need to check this condition once z property is added
 211                  */
 212                 BUG_ON(stage > hw_cfg->lm.nb_stages);
 213
 214                 /* LM */
 215                 mdp5_write(mdp5_kms,
 216                                 REG_MDP5_LM_BLEND_OP_MODE(lm, blender(stage)),
 217                                 MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
 218                                 MDP5_LM_BLEND_OP_MODE_BG_ALPHA(BG_CONST));
 219                 mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(lm,
 220                                 blender(stage)), 0xff);
 221                 mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(lm,
 222                                 blender(stage)), 0x00);
 223                 /* CTL */
 224                 blend_cfg |= mdp_ctl_blend_mask(mdp5_plane_pipe(plane), stage);
 225                 DBG("%s: blending pipe %s on stage=%d", mdp5_crtc->name,
 226                                 pipe2name(mdp5_plane_pipe(plane)), stage);
 227         }
 228
 229         DBG("%s: lm%d: blend config = 0x%08x", mdp5_crtc->name, lm, blend_cfg);
 230         mdp5_ctl_blend(mdp5_crtc->ctl, lm, blend_cfg);
 231
 232 out:
 233         spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
 234 }
 235
 236 static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc)
 237 {
 238         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 239         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 240         unsigned long flags;
 241         struct drm_display_mode *mode;
 242
 243         if (WARN_ON(!crtc->state))
 244                 return;
 245
 246         mode = &crtc->state->adjusted_mode;
 247
 248         DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
 249                         mdp5_crtc->name, mode->base.id, mode->name,
 250                         mode->vrefresh, mode->clock,
 251                         mode->hdisplay, mode->hsync_start,
 252                         mode->hsync_end, mode->htotal,
 253                         mode->vdisplay, mode->vsync_start,
 254                         mode->vsync_end, mode->vtotal,
 255                         mode->type, mode->flags);
 256
 257         spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
 258         mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(mdp5_crtc->lm),
 259                         MDP5_LM_OUT_SIZE_WIDTH(mode->hdisplay) |
 260                         MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
 261         spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
 262 }
 263
 264 static void mdp5_crtc_disable(struct drm_crtc *crtc)
 265 {
 266         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 267         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 268
 269         DBG("%s", mdp5_crtc->name);
 270
 271         if (WARN_ON(!mdp5_crtc->enabled))
 272                 return;
 273
 274         /* set STAGE_UNUSED for all layers */
 275         mdp5_ctl_blend(mdp5_crtc->ctl, mdp5_crtc->lm, 0x00000000);
 276
 277         mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
 278         mdp5_disable(mdp5_kms);
 279
 280         mdp5_crtc->enabled = false;
 281 }
 282
 283 static void mdp5_crtc_enable(struct drm_crtc *crtc)
 284 {
 285         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 286         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 287
 288         DBG("%s", mdp5_crtc->name);
 289
 290         if (WARN_ON(mdp5_crtc->enabled))
 291                 return;
 292
 293         mdp5_enable(mdp5_kms);
 294         mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
 295
 296         crtc_flush_all(crtc);
 297
 298         mdp5_crtc->enabled = true;
 299 }
 300
 301 struct plane_state {
 302         struct drm_plane *plane;
 303         struct mdp5_plane_state *state;
 304 };
 305
 306 static int pstate_cmp(const void *a, const void *b)
 307 {
 308         struct plane_state *pa = (struct plane_state *)a;
 309         struct plane_state *pb = (struct plane_state *)b;
 310         return pa->state->zpos - pb->state->zpos;
 311 }
 312
 313 static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
 314                 struct drm_crtc_state *state)
 315 {
 316         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 317         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 318         struct drm_plane *plane;
 319         struct drm_device *dev = crtc->dev;
 320         struct plane_state pstates[STAGE3 + 1];
 321         int cnt = 0, i;
 322
 323         DBG("%s: check", mdp5_crtc->name);
 324
 325         /* request a free CTL, if none is already allocated for this CRTC */
 326         if (state->enable && !mdp5_crtc->ctl) {
 327                 mdp5_crtc->ctl = mdp5_ctlm_request(mdp5_kms->ctlm, crtc);
 328                 if (WARN_ON(!mdp5_crtc->ctl))
 329                         return -EINVAL;
 330         }
 331
 332         /* verify that there are not too many planes attached to crtc
 333          * and that we don't have conflicting mixer stages:
 334          */
 335         drm_atomic_crtc_state_for_each_plane(plane, state) {
 336                 struct drm_plane_state *pstate;
 337
 338                 if (cnt >= ARRAY_SIZE(pstates)) {
 339                         dev_err(dev->dev, "too many planes!\n");
 340                         return -EINVAL;
 341                 }
 342
 343                 pstate = state->state->plane_states[drm_plane_index(plane)];
 344
 345                 /* plane might not have changed, in which case take
 346                  * current state:
 347                  */
 348                 if (!pstate)
 349                         pstate = plane->state;
 350
 351                 pstates[cnt].plane = plane;
 352                 pstates[cnt].state = to_mdp5_plane_state(pstate);
 353
 354                 cnt++;
 355         }
 356
 357         sort(pstates, cnt, sizeof(pstates[0]), pstate_cmp, NULL);
 358
 359         for (i = 0; i < cnt; i++) {
 360                 pstates[i].state->stage = STAGE_BASE + i;
 361                 DBG("%s: assign pipe %s on stage=%d", mdp5_crtc->name,
 362                                 pipe2name(mdp5_plane_pipe(pstates[i].plane)),
 363                                 pstates[i].state->stage);
 364         }
 365
 366         return 0;
 367 }
 368
 369 static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc)
 370 {
 371         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 372         DBG("%s: begin", mdp5_crtc->name);
 373 }
 374
 375 static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc)
 376 {
 377         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 378         struct drm_device *dev = crtc->dev;
 379         unsigned long flags;
 380
 381         DBG("%s: event: %p", mdp5_crtc->name, crtc->state->event);
 382
 383         WARN_ON(mdp5_crtc->event);
 384
 385         spin_lock_irqsave(&dev->event_lock, flags);
 386         mdp5_crtc->event = crtc->state->event;
 387         spin_unlock_irqrestore(&dev->event_lock, flags);
 388
 389         blend_setup(crtc);
 390         crtc_flush_all(crtc);
 391         request_pending(crtc, PENDING_FLIP);
 392
 393         if (mdp5_crtc->ctl && !crtc->state->enable) {
 394                 mdp5_ctl_release(mdp5_crtc->ctl);
 395                 mdp5_crtc->ctl = NULL;
 396         }
 397 }
 398
 399 static int mdp5_crtc_set_property(struct drm_crtc *crtc,
 400                 struct drm_property *property, uint64_t val)
 401 {
 402         // XXX
 403         return -EINVAL;
 404 }
 405
 406 static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 407                 struct drm_file *file, uint32_t handle,
 408                 uint32_t width, uint32_t height)
 409 {
 410         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 411         struct drm_device *dev = crtc->dev;
 412         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 413         struct drm_gem_object *cursor_bo, *old_bo;
 414         uint32_t blendcfg, cursor_addr, stride;
 415         int ret, bpp, lm;
 416         unsigned int depth;
 417         enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
 418         uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
 419         unsigned long flags;
 420
 421         if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
 422                 dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height);
 423                 return -EINVAL;
 424         }
 425
 426         if (NULL == mdp5_crtc->ctl)
 427                 return -EINVAL;
 428
 429         if (!handle) {
 430                 DBG("Cursor off");
 431                 return mdp5_ctl_set_cursor(mdp5_crtc->ctl, false);
 432         }
 433
 434         cursor_bo = drm_gem_object_lookup(dev, file, handle);
 435         if (!cursor_bo)
 436                 return -ENOENT;
 437
 438         ret = msm_gem_get_iova(cursor_bo, mdp5_kms->id, &cursor_addr);
 439         if (ret)
 440                 return -EINVAL;
 441
 442         lm = mdp5_crtc->lm;
 443         drm_fb_get_bpp_depth(DRM_FORMAT_ARGB8888, &depth, &bpp);
 444         stride = width * (bpp >> 3);
 445
 446         spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 447         old_bo = mdp5_crtc->cursor.scanout_bo;
 448
 449         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
 450         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
 451                         MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
 452         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_IMG_SIZE(lm),
 453                         MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) |
 454                         MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width));
 455         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
 456                         MDP5_LM_CURSOR_SIZE_ROI_H(height) |
 457                         MDP5_LM_CURSOR_SIZE_ROI_W(width));
 458         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm), cursor_addr);
 459
 460
 461         blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN;
 462         blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_TRANSP_EN;
 463         blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha);
 464         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg);
 465
 466         mdp5_crtc->cursor.scanout_bo = cursor_bo;
 467         mdp5_crtc->cursor.width = width;
 468         mdp5_crtc->cursor.height = height;
 469         spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 470
 471         ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, true);
 472         if (ret)
 473                 goto end;
 474
 475         flush_mask |= mdp5_ctl_get_flush(mdp5_crtc->ctl);
 476         crtc_flush(crtc, flush_mask);
 477
 478 end:
 479         if (old_bo) {
 480                 drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
 481                 /* enable vblank to complete cursor work: */
 482                 request_pending(crtc, PENDING_CURSOR);
 483         }
 484         return ret;
 485 }
 486
 487 static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 488 {
 489         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 490         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 491         uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
 492         uint32_t xres = crtc->mode.hdisplay;
 493         uint32_t yres = crtc->mode.vdisplay;
 494         uint32_t roi_w;
 495         uint32_t roi_h;
 496         unsigned long flags;
 497
 498         x = (x > 0) ? x : 0;
 499         y = (y > 0) ? y : 0;
 500
 501         /*
 502          * Cursor Region Of Interest (ROI) is a plane read from cursor
 503          * buffer to render. The ROI region is determined by the visiblity of
 504          * the cursor point. In the default Cursor image the cursor point will
 505          * be at the top left of the cursor image, unless it is specified
 506          * otherwise using hotspot feature.
 507          *
 508          * If the cursor point reaches the right (xres - x < cursor.width) or
 509          * bottom (yres - y < cursor.height) boundary of the screen, then ROI
 510          * width and ROI height need to be evaluated to crop the cursor image
 511          * accordingly.
 512          * (xres-x) will be new cursor width when x > (xres - cursor.width)
 513          * (yres-y) will be new cursor height when y > (yres - cursor.height)
 514          */
 515         roi_w = min(mdp5_crtc->cursor.width, xres - x);
 516         roi_h = min(mdp5_crtc->cursor.height, yres - y);
 517
 518         spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 519         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(mdp5_crtc->lm),
 520                         MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
 521                         MDP5_LM_CURSOR_SIZE_ROI_W(roi_w));
 522         mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_START_XY(mdp5_crtc->lm),
 523                         MDP5_LM_CURSOR_START_XY_Y_START(y) |
 524                         MDP5_LM_CURSOR_START_XY_X_START(x));
 525         spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 526
 527         crtc_flush(crtc, flush_mask);
 528
 529         return 0;
 530 }
 531
 532 static const struct drm_crtc_funcs mdp5_crtc_funcs = {
 533         .set_config = drm_atomic_helper_set_config,
 534         .destroy = mdp5_crtc_destroy,
 535         .page_flip = drm_atomic_helper_page_flip,
 536         .set_property = mdp5_crtc_set_property,
 537         .reset = drm_atomic_helper_crtc_reset,
 538         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 539         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 540         .cursor_set = mdp5_crtc_cursor_set,
 541         .cursor_move = mdp5_crtc_cursor_move,
 542 };
 543
 544 static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
 545         .mode_fixup = mdp5_crtc_mode_fixup,
 546         .mode_set_nofb = mdp5_crtc_mode_set_nofb,
 547         .prepare = mdp5_crtc_disable,
 548         .commit = mdp5_crtc_enable,
 549         .atomic_check = mdp5_crtc_atomic_check,
 550         .atomic_begin = mdp5_crtc_atomic_begin,
 551         .atomic_flush = mdp5_crtc_atomic_flush,
 552 };
 553
 554 static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus)
 555 {
 556         struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank);
 557         struct drm_crtc *crtc = &mdp5_crtc->base;
 558         struct msm_drm_private *priv = crtc->dev->dev_private;
 559         unsigned pending;
 560
 561         mdp_irq_unregister(&get_kms(crtc)->base, &mdp5_crtc->vblank);
 562
 563         pending = atomic_xchg(&mdp5_crtc->pending, 0);
 564
 565         if (pending & PENDING_FLIP) {
 566                 complete_flip(crtc, NULL);
 567         }
 568
 569         if (pending & PENDING_CURSOR)
 570                 drm_flip_work_commit(&mdp5_crtc->unref_cursor_work, priv->wq);
 571 }
 572
 573 static void mdp5_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus)
 574 {
 575         struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, err);
 576
 577         DBG("%s: error: %08x", mdp5_crtc->name, irqstatus);
 578 }
 579
 580 uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc)
 581 {
 582         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 583         return mdp5_crtc->vblank.irqmask;
 584 }
 585
 586 void mdp5_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file)
 587 {
 588         DBG("cancel: %p", file);
 589         complete_flip(crtc, file);
 590 }
 591
 592 /* set interface for routing crtc->encoder: */
 593 void mdp5_crtc_set_intf(struct drm_crtc *crtc, int intf,
 594                 enum mdp5_intf intf_id)
 595 {
 596         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 597         struct mdp5_kms *mdp5_kms = get_kms(crtc);
 598         uint32_t flush_mask = 0;
 599         uint32_t intf_sel;
 600         unsigned long flags;
 601
 602         /* now that we know what irq's we want: */
 603         mdp5_crtc->err.irqmask = intf2err(intf);
 604         mdp5_crtc->vblank.irqmask = intf2vblank(intf);
 605         mdp_irq_update(&mdp5_kms->base);
 606
 607         spin_lock_irqsave(&mdp5_kms->resource_lock, flags);
 608         intf_sel = mdp5_read(mdp5_kms, REG_MDP5_DISP_INTF_SEL);
 609
 610         switch (intf) {
 611         case 0:
 612                 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF0__MASK;
 613                 intf_sel |= MDP5_DISP_INTF_SEL_INTF0(intf_id);
 614                 break;
 615         case 1:
 616                 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF1__MASK;
 617                 intf_sel |= MDP5_DISP_INTF_SEL_INTF1(intf_id);
 618                 break;
 619         case 2:
 620                 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF2__MASK;
 621                 intf_sel |= MDP5_DISP_INTF_SEL_INTF2(intf_id);
 622                 break;
 623         case 3:
 624                 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF3__MASK;
 625                 intf_sel |= MDP5_DISP_INTF_SEL_INTF3(intf_id);
 626                 break;
 627         default:
 628                 BUG();
 629                 break;
 630         }
 631
 632         mdp5_write(mdp5_kms, REG_MDP5_DISP_INTF_SEL, intf_sel);
 633         spin_unlock_irqrestore(&mdp5_kms->resource_lock, flags);
 634
 635         DBG("%s: intf_sel=%08x", mdp5_crtc->name, intf_sel);
 636         mdp5_ctl_set_intf(mdp5_crtc->ctl, intf);
 637         flush_mask |= mdp5_ctl_get_flush(mdp5_crtc->ctl);
 638         flush_mask |= mdp5_lm_get_flush(mdp5_crtc->lm);
 639
 640         crtc_flush(crtc, flush_mask);
 641 }
 642
 643 int mdp5_crtc_get_lm(struct drm_crtc *crtc)
 644 {
 645         struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 646
 647         if (WARN_ON(!crtc))
 648                 return -EINVAL;
 649
 650         return mdp5_crtc->lm;
 651 }
 652
 653 /* initialize crtc */
 654 struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
 655                 struct drm_plane *plane, int id)
 656 {
 657         struct drm_crtc *crtc = NULL;
 658         struct mdp5_crtc *mdp5_crtc;
 659
 660         mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL);
 661         if (!mdp5_crtc)
 662                 return ERR_PTR(-ENOMEM);
 663
 664         crtc = &mdp5_crtc->base;
 665
 666         mdp5_crtc->id = id;
 667         mdp5_crtc->lm = GET_LM_ID(id);
 668
 669         spin_lock_init(&mdp5_crtc->lm_lock);
 670         spin_lock_init(&mdp5_crtc->cursor.lock);
 671
 672         mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq;
 673         mdp5_crtc->err.irq = mdp5_crtc_err_irq;
 674
 675         snprintf(mdp5_crtc->name, sizeof(mdp5_crtc->name), "%s:%d",
 676                         pipe2name(mdp5_plane_pipe(plane)), id);
 677
 678         drm_crtc_init_with_planes(dev, crtc, plane, NULL, &mdp5_crtc_funcs);
 679
 680         drm_flip_work_init(&mdp5_crtc->unref_cursor_work,
 681                         "unref cursor", unref_cursor_worker);
 682
 683         drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs);
 684         plane->crtc = crtc;
 685
 686         mdp5_plane_install_properties(plane, &crtc->base);
 687
 688         return crtc;
 689 }