1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2013 Red Hat 4 * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. 5 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. 6 * 7 * Author: Rob Clark <robdclark@gmail.com> 8 */ 9 10 #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ 11 12 #include <linux/debugfs.h> 13 #include <linux/dma-buf.h> 14 #include <linux/of_irq.h> 15 #include <linux/pm_opp.h> 16 17 #include <drm/drm_crtc.h> 18 #include <drm/drm_file.h> 19 #include <drm/drm_framebuffer.h> 20 #include <drm/drm_vblank.h> 21 #include <drm/drm_writeback.h> 22 23 #include "msm_drv.h" 24 #include "msm_mmu.h" 25 #include "msm_mdss.h" 26 #include "msm_gem.h" 27 #include "disp/msm_disp_snapshot.h" 28 29 #include "dpu_core_irq.h" 30 #include "dpu_crtc.h" 31 #include "dpu_encoder.h" 32 #include "dpu_formats.h" 33 #include "dpu_hw_vbif.h" 34 #include "dpu_kms.h" 35 #include "dpu_plane.h" 36 #include "dpu_vbif.h" 37 #include "dpu_writeback.h" 38 39 #define CREATE_TRACE_POINTS 40 #include "dpu_trace.h" 41 42 /* 43 * To enable overall DRM driver logging 44 * # echo 0x2 > /sys/module/drm/parameters/debug 45 * 46 * To enable DRM driver h/w logging 47 * # echo <mask> > /sys/kernel/debug/dri/0/debug/hw_log_mask 48 * 49 * See dpu_hw_mdss.h for h/w logging mask definitions (search for DPU_DBG_MASK_) 50 */ 51 #define DPU_DEBUGFS_DIR "msm_dpu" 52 #define DPU_DEBUGFS_HWMASKNAME "hw_log_mask" 53 54 static int dpu_kms_hw_init(struct msm_kms *kms); 55 static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms); 56 57 #ifdef CONFIG_DEBUG_FS 58 static int _dpu_danger_signal_status(struct seq_file *s, 59 bool danger_status) 60 { 61 struct dpu_danger_safe_status status; 62 struct dpu_kms *kms = s->private; 63 int i; 64 65 if (!kms->hw_mdp) { 66 DPU_ERROR("invalid arg(s)\n"); 67 return 0; 68 } 69 70 memset(&status, 0, sizeof(struct dpu_danger_safe_status)); 71 72 pm_runtime_get_sync(&kms->pdev->dev); 73 if (danger_status) { 74 seq_puts(s, "\nDanger signal status:\n"); 75 if (kms->hw_mdp->ops.get_danger_status) 76 kms->hw_mdp->ops.get_danger_status(kms->hw_mdp, 77 &status); 78 } else { 79 seq_puts(s, "\nSafe signal status:\n"); 80 if (kms->hw_mdp->ops.get_safe_status) 81 kms->hw_mdp->ops.get_safe_status(kms->hw_mdp, 82 &status); 83 } 84 pm_runtime_put_sync(&kms->pdev->dev); 85 86 seq_printf(s, "MDP : 0x%x\n", status.mdp); 87 88 for (i = SSPP_VIG0; i < SSPP_MAX; i++) 89 seq_printf(s, "SSPP%d : 0x%x \n", i - SSPP_VIG0, 90 status.sspp[i]); 91 seq_puts(s, "\n"); 92 93 return 0; 94 } 95 96 static int dpu_debugfs_danger_stats_show(struct seq_file *s, void *v) 97 { 98 return _dpu_danger_signal_status(s, true); 99 } 100 DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_danger_stats); 101 102 static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v) 103 { 104 return _dpu_danger_signal_status(s, false); 105 } 106 DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_safe_stats); 107 108 static ssize_t _dpu_plane_danger_read(struct file *file, 109 char __user *buff, size_t count, loff_t *ppos) 110 { 111 struct dpu_kms *kms = file->private_data; 112 int len; 113 char buf[40]; 114 115 len = scnprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl); 116 117 return simple_read_from_buffer(buff, count, ppos, buf, len); 118 } 119 120 static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable) 121 { 122 struct drm_plane *plane; 123 124 drm_for_each_plane(plane, kms->dev) { 125 if (plane->fb && plane->state) { 126 dpu_plane_danger_signal_ctrl(plane, enable); 127 DPU_DEBUG("plane:%d img:%dx%d ", 128 plane->base.id, plane->fb->width, 129 plane->fb->height); 130 DPU_DEBUG("src[%d,%d,%d,%d] dst[%d,%d,%d,%d]\n", 131 plane->state->src_x >> 16, 132 plane->state->src_y >> 16, 133 plane->state->src_w >> 16, 134 plane->state->src_h >> 16, 135 plane->state->crtc_x, plane->state->crtc_y, 136 plane->state->crtc_w, plane->state->crtc_h); 137 } else { 138 DPU_DEBUG("Inactive plane:%d\n", plane->base.id); 139 } 140 } 141 } 142 143 static ssize_t _dpu_plane_danger_write(struct file *file, 144 const char __user *user_buf, size_t count, loff_t *ppos) 145 { 146 struct dpu_kms *kms = file->private_data; 147 int disable_panic; 148 int ret; 149 150 ret = kstrtouint_from_user(user_buf, count, 0, &disable_panic); 151 if (ret) 152 return ret; 153 154 if (disable_panic) { 155 /* Disable panic signal for all active pipes */ 156 DPU_DEBUG("Disabling danger:\n"); 157 _dpu_plane_set_danger_state(kms, false); 158 kms->has_danger_ctrl = false; 159 } else { 160 /* Enable panic signal for all active pipes */ 161 DPU_DEBUG("Enabling danger:\n"); 162 kms->has_danger_ctrl = true; 163 _dpu_plane_set_danger_state(kms, true); 164 } 165 166 return count; 167 } 168 169 static const struct file_operations dpu_plane_danger_enable = { 170 .open = simple_open, 171 .read = _dpu_plane_danger_read, 172 .write = _dpu_plane_danger_write, 173 }; 174 175 static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms, 176 struct dentry *parent) 177 { 178 struct dentry *entry = debugfs_create_dir("danger", parent); 179 180 debugfs_create_file("danger_status", 0600, entry, 181 dpu_kms, &dpu_debugfs_danger_stats_fops); 182 debugfs_create_file("safe_status", 0600, entry, 183 dpu_kms, &dpu_debugfs_safe_stats_fops); 184 debugfs_create_file("disable_danger", 0600, entry, 185 dpu_kms, &dpu_plane_danger_enable); 186 187 } 188 189 /* 190 * Companion structure for dpu_debugfs_create_regset32. 191 */ 192 struct dpu_debugfs_regset32 { 193 uint32_t offset; 194 uint32_t blk_len; 195 struct dpu_kms *dpu_kms; 196 }; 197 198 static int dpu_regset32_show(struct seq_file *s, void *data) 199 { 200 struct dpu_debugfs_regset32 *regset = s->private; 201 struct dpu_kms *dpu_kms = regset->dpu_kms; 202 void __iomem *base; 203 uint32_t i, addr; 204 205 if (!dpu_kms->mmio) 206 return 0; 207 208 base = dpu_kms->mmio + regset->offset; 209 210 /* insert padding spaces, if needed */ 211 if (regset->offset & 0xF) { 212 seq_printf(s, "[%x]", regset->offset & ~0xF); 213 for (i = 0; i < (regset->offset & 0xF); i += 4) 214 seq_puts(s, " "); 215 } 216 217 pm_runtime_get_sync(&dpu_kms->pdev->dev); 218 219 /* main register output */ 220 for (i = 0; i < regset->blk_len; i += 4) { 221 addr = regset->offset + i; 222 if ((addr & 0xF) == 0x0) 223 seq_printf(s, i ? "\n[%x]" : "[%x]", addr); 224 seq_printf(s, " %08x", readl_relaxed(base + i)); 225 } 226 seq_puts(s, "\n"); 227 pm_runtime_put_sync(&dpu_kms->pdev->dev); 228 229 return 0; 230 } 231 DEFINE_SHOW_ATTRIBUTE(dpu_regset32); 232 233 void dpu_debugfs_create_regset32(const char *name, umode_t mode, 234 void *parent, 235 uint32_t offset, uint32_t length, struct dpu_kms *dpu_kms) 236 { 237 struct dpu_debugfs_regset32 *regset; 238 239 if (WARN_ON(!name || !dpu_kms || !length)) 240 return; 241 242 regset = devm_kzalloc(&dpu_kms->pdev->dev, sizeof(*regset), GFP_KERNEL); 243 if (!regset) 244 return; 245 246 /* make sure offset is a multiple of 4 */ 247 regset->offset = round_down(offset, 4); 248 regset->blk_len = length; 249 regset->dpu_kms = dpu_kms; 250 251 debugfs_create_file(name, mode, parent, regset, &dpu_regset32_fops); 252 } 253 254 static void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root) 255 { 256 struct dentry *entry = debugfs_create_dir("sspp", debugfs_root); 257 int i; 258 259 if (IS_ERR(entry)) 260 return; 261 262 for (i = SSPP_NONE; i < SSPP_MAX; i++) { 263 struct dpu_hw_sspp *hw = dpu_rm_get_sspp(&dpu_kms->rm, i); 264 265 if (!hw) 266 continue; 267 268 _dpu_hw_sspp_init_debugfs(hw, dpu_kms, entry); 269 } 270 } 271 272 static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor) 273 { 274 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 275 void *p = dpu_hw_util_get_log_mask_ptr(); 276 struct dentry *entry; 277 278 if (!p) 279 return -EINVAL; 280 281 /* Only create a set of debugfs for the primary node, ignore render nodes */ 282 if (minor->type != DRM_MINOR_PRIMARY) 283 return 0; 284 285 entry = debugfs_create_dir("debug", minor->debugfs_root); 286 287 debugfs_create_x32(DPU_DEBUGFS_HWMASKNAME, 0600, entry, p); 288 289 dpu_debugfs_danger_init(dpu_kms, entry); 290 dpu_debugfs_vbif_init(dpu_kms, entry); 291 dpu_debugfs_core_irq_init(dpu_kms, entry); 292 dpu_debugfs_sspp_init(dpu_kms, entry); 293 294 return dpu_core_perf_debugfs_init(dpu_kms, entry); 295 } 296 #endif 297 298 /* Global/shared object state funcs */ 299 300 /* 301 * This is a helper that returns the private state currently in operation. 302 * Note that this would return the "old_state" if called in the atomic check 303 * path, and the "new_state" after the atomic swap has been done. 304 */ 305 struct dpu_global_state * 306 dpu_kms_get_existing_global_state(struct dpu_kms *dpu_kms) 307 { 308 return to_dpu_global_state(dpu_kms->global_state.state); 309 } 310 311 /* 312 * This acquires the modeset lock set aside for global state, creates 313 * a new duplicated private object state. 314 */ 315 struct dpu_global_state *dpu_kms_get_global_state(struct drm_atomic_state *s) 316 { 317 struct msm_drm_private *priv = s->dev->dev_private; 318 struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); 319 struct drm_private_state *priv_state; 320 321 priv_state = drm_atomic_get_private_obj_state(s, 322 &dpu_kms->global_state); 323 if (IS_ERR(priv_state)) 324 return ERR_CAST(priv_state); 325 326 return to_dpu_global_state(priv_state); 327 } 328 329 static struct drm_private_state * 330 dpu_kms_global_duplicate_state(struct drm_private_obj *obj) 331 { 332 struct dpu_global_state *state; 333 334 state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL); 335 if (!state) 336 return NULL; 337 338 __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base); 339 340 return &state->base; 341 } 342 343 static void dpu_kms_global_destroy_state(struct drm_private_obj *obj, 344 struct drm_private_state *state) 345 { 346 struct dpu_global_state *dpu_state = to_dpu_global_state(state); 347 348 kfree(dpu_state); 349 } 350 351 static void dpu_kms_global_print_state(struct drm_printer *p, 352 const struct drm_private_state *state) 353 { 354 const struct dpu_global_state *global_state = to_dpu_global_state(state); 355 356 dpu_rm_print_state(p, global_state); 357 } 358 359 static const struct drm_private_state_funcs dpu_kms_global_state_funcs = { 360 .atomic_duplicate_state = dpu_kms_global_duplicate_state, 361 .atomic_destroy_state = dpu_kms_global_destroy_state, 362 .atomic_print_state = dpu_kms_global_print_state, 363 }; 364 365 static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms) 366 { 367 struct dpu_global_state *state; 368 369 state = kzalloc(sizeof(*state), GFP_KERNEL); 370 if (!state) 371 return -ENOMEM; 372 373 drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state, 374 &state->base, 375 &dpu_kms_global_state_funcs); 376 377 state->rm = &dpu_kms->rm; 378 379 return 0; 380 } 381 382 static void dpu_kms_global_obj_fini(struct dpu_kms *dpu_kms) 383 { 384 drm_atomic_private_obj_fini(&dpu_kms->global_state); 385 } 386 387 static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms) 388 { 389 struct icc_path *path0; 390 struct icc_path *path1; 391 struct device *dpu_dev = &dpu_kms->pdev->dev; 392 393 path0 = msm_icc_get(dpu_dev, "mdp0-mem"); 394 path1 = msm_icc_get(dpu_dev, "mdp1-mem"); 395 396 if (IS_ERR_OR_NULL(path0)) 397 return PTR_ERR_OR_ZERO(path0); 398 399 dpu_kms->path[0] = path0; 400 dpu_kms->num_paths = 1; 401 402 if (!IS_ERR_OR_NULL(path1)) { 403 dpu_kms->path[1] = path1; 404 dpu_kms->num_paths++; 405 } 406 return 0; 407 } 408 409 static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) 410 { 411 return dpu_crtc_vblank(crtc, true); 412 } 413 414 static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) 415 { 416 dpu_crtc_vblank(crtc, false); 417 } 418 419 static void dpu_kms_enable_commit(struct msm_kms *kms) 420 { 421 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 422 pm_runtime_get_sync(&dpu_kms->pdev->dev); 423 } 424 425 static void dpu_kms_disable_commit(struct msm_kms *kms) 426 { 427 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 428 pm_runtime_put_sync(&dpu_kms->pdev->dev); 429 } 430 431 static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask) 432 { 433 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 434 struct drm_crtc *crtc; 435 436 for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) { 437 if (!crtc->state->active) 438 continue; 439 440 trace_dpu_kms_commit(DRMID(crtc)); 441 dpu_crtc_commit_kickoff(crtc); 442 } 443 } 444 445 static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask) 446 { 447 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 448 struct drm_crtc *crtc; 449 450 DPU_ATRACE_BEGIN("kms_complete_commit"); 451 452 for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) 453 dpu_crtc_complete_commit(crtc); 454 455 DPU_ATRACE_END("kms_complete_commit"); 456 } 457 458 static void dpu_kms_wait_for_commit_done(struct msm_kms *kms, 459 struct drm_crtc *crtc) 460 { 461 struct drm_encoder *encoder; 462 struct drm_device *dev; 463 int ret; 464 465 if (!kms || !crtc || !crtc->state) { 466 DPU_ERROR("invalid params\n"); 467 return; 468 } 469 470 dev = crtc->dev; 471 472 if (!crtc->state->enable) { 473 DPU_DEBUG("[crtc:%d] not enable\n", crtc->base.id); 474 return; 475 } 476 477 if (!drm_atomic_crtc_effectively_active(crtc->state)) { 478 DPU_DEBUG("[crtc:%d] not active\n", crtc->base.id); 479 return; 480 } 481 482 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 483 if (encoder->crtc != crtc) 484 continue; 485 /* 486 * Wait for post-flush if necessary to delay before 487 * plane_cleanup. For example, wait for vsync in case of video 488 * mode panels. This may be a no-op for command mode panels. 489 */ 490 trace_dpu_kms_wait_for_commit_done(DRMID(crtc)); 491 ret = dpu_encoder_wait_for_commit_done(encoder); 492 if (ret && ret != -EWOULDBLOCK) { 493 DPU_ERROR("wait for commit done returned %d\n", ret); 494 break; 495 } 496 } 497 } 498 499 static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask) 500 { 501 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 502 struct drm_crtc *crtc; 503 504 for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) 505 dpu_kms_wait_for_commit_done(kms, crtc); 506 } 507 508 static int _dpu_kms_initialize_dsi(struct drm_device *dev, 509 struct msm_drm_private *priv, 510 struct dpu_kms *dpu_kms) 511 { 512 struct drm_encoder *encoder = NULL; 513 struct msm_display_info info; 514 int i, rc = 0; 515 516 if (!(priv->dsi[0] || priv->dsi[1])) 517 return rc; 518 519 /* 520 * We support following confiurations: 521 * - Single DSI host (dsi0 or dsi1) 522 * - Two independent DSI hosts 523 * - Bonded DSI0 and DSI1 hosts 524 * 525 * TODO: Support swapping DSI0 and DSI1 in the bonded setup. 526 */ 527 for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) { 528 int other = (i + 1) % 2; 529 530 if (!priv->dsi[i]) 531 continue; 532 533 if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && 534 !msm_dsi_is_master_dsi(priv->dsi[i])) 535 continue; 536 537 memset(&info, 0, sizeof(info)); 538 info.intf_type = INTF_DSI; 539 540 info.h_tile_instance[info.num_of_h_tiles++] = i; 541 if (msm_dsi_is_bonded_dsi(priv->dsi[i])) 542 info.h_tile_instance[info.num_of_h_tiles++] = other; 543 544 info.is_cmd_mode = msm_dsi_is_cmd_mode(priv->dsi[i]); 545 546 encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI, &info); 547 if (IS_ERR(encoder)) { 548 DPU_ERROR("encoder init failed for dsi display\n"); 549 return PTR_ERR(encoder); 550 } 551 552 rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder); 553 if (rc) { 554 DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n", 555 i, rc); 556 break; 557 } 558 559 if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) { 560 rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder); 561 if (rc) { 562 DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n", 563 other, rc); 564 break; 565 } 566 } 567 } 568 569 return rc; 570 } 571 572 static int _dpu_kms_initialize_displayport(struct drm_device *dev, 573 struct msm_drm_private *priv, 574 struct dpu_kms *dpu_kms) 575 { 576 struct drm_encoder *encoder = NULL; 577 struct msm_display_info info; 578 bool yuv_supported; 579 int rc; 580 int i; 581 582 for (i = 0; i < ARRAY_SIZE(priv->dp); i++) { 583 if (!priv->dp[i]) 584 continue; 585 586 memset(&info, 0, sizeof(info)); 587 info.num_of_h_tiles = 1; 588 info.h_tile_instance[0] = i; 589 info.intf_type = INTF_DP; 590 591 encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info); 592 if (IS_ERR(encoder)) { 593 DPU_ERROR("encoder init failed for dsi display\n"); 594 return PTR_ERR(encoder); 595 } 596 597 yuv_supported = !!dpu_kms->catalog->cdm; 598 rc = msm_dp_modeset_init(priv->dp[i], dev, encoder, yuv_supported); 599 if (rc) { 600 DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc); 601 return rc; 602 } 603 } 604 605 return 0; 606 } 607 608 static int _dpu_kms_initialize_hdmi(struct drm_device *dev, 609 struct msm_drm_private *priv, 610 struct dpu_kms *dpu_kms) 611 { 612 struct drm_encoder *encoder = NULL; 613 struct msm_display_info info; 614 int rc; 615 616 if (!priv->hdmi) 617 return 0; 618 619 memset(&info, 0, sizeof(info)); 620 info.num_of_h_tiles = 1; 621 info.h_tile_instance[0] = 0; 622 info.intf_type = INTF_HDMI; 623 624 encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info); 625 if (IS_ERR(encoder)) { 626 DPU_ERROR("encoder init failed for HDMI display\n"); 627 return PTR_ERR(encoder); 628 } 629 630 rc = msm_hdmi_modeset_init(priv->hdmi, dev, encoder); 631 if (rc) { 632 DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc); 633 return rc; 634 } 635 636 return 0; 637 } 638 639 static int _dpu_kms_initialize_writeback(struct drm_device *dev, 640 struct msm_drm_private *priv, struct dpu_kms *dpu_kms, 641 const u32 *wb_formats, int n_formats) 642 { 643 struct drm_encoder *encoder = NULL; 644 struct msm_display_info info; 645 const enum dpu_wb wb_idx = WB_2; 646 u32 maxlinewidth; 647 int rc; 648 649 memset(&info, 0, sizeof(info)); 650 651 info.num_of_h_tiles = 1; 652 /* use only WB idx 2 instance for DPU */ 653 info.h_tile_instance[0] = wb_idx; 654 info.intf_type = INTF_WB; 655 656 maxlinewidth = dpu_rm_get_wb(&dpu_kms->rm, info.h_tile_instance[0])->caps->maxlinewidth; 657 658 encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL, &info); 659 if (IS_ERR(encoder)) { 660 DPU_ERROR("encoder init failed for dsi display\n"); 661 return PTR_ERR(encoder); 662 } 663 664 rc = dpu_writeback_init(dev, encoder, wb_formats, n_formats, maxlinewidth); 665 if (rc) { 666 DPU_ERROR("dpu_writeback_init, rc = %d\n", rc); 667 return rc; 668 } 669 670 return 0; 671 } 672 673 /** 674 * _dpu_kms_setup_displays - create encoders, bridges and connectors 675 * for underlying displays 676 * @dev: Pointer to drm device structure 677 * @priv: Pointer to private drm device data 678 * @dpu_kms: Pointer to dpu kms structure 679 * Returns: Zero on success 680 */ 681 static int _dpu_kms_setup_displays(struct drm_device *dev, 682 struct msm_drm_private *priv, 683 struct dpu_kms *dpu_kms) 684 { 685 int rc = 0; 686 int i; 687 688 rc = _dpu_kms_initialize_dsi(dev, priv, dpu_kms); 689 if (rc) { 690 DPU_ERROR("initialize_dsi failed, rc = %d\n", rc); 691 return rc; 692 } 693 694 rc = _dpu_kms_initialize_displayport(dev, priv, dpu_kms); 695 if (rc) { 696 DPU_ERROR("initialize_DP failed, rc = %d\n", rc); 697 return rc; 698 } 699 700 rc = _dpu_kms_initialize_hdmi(dev, priv, dpu_kms); 701 if (rc) { 702 DPU_ERROR("initialize HDMI failed, rc = %d\n", rc); 703 return rc; 704 } 705 706 /* Since WB isn't a driver check the catalog before initializing */ 707 if (dpu_kms->catalog->wb_count) { 708 for (i = 0; i < dpu_kms->catalog->wb_count; i++) { 709 if (dpu_kms->catalog->wb[i].id == WB_2) { 710 rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms, 711 dpu_kms->catalog->wb[i].format_list, 712 dpu_kms->catalog->wb[i].num_formats); 713 if (rc) { 714 DPU_ERROR("initialize_WB failed, rc = %d\n", rc); 715 return rc; 716 } 717 } 718 } 719 } 720 721 return rc; 722 } 723 724 #define MAX_PLANES 20 725 static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) 726 { 727 struct drm_device *dev; 728 struct drm_plane *primary_planes[MAX_PLANES], *plane; 729 struct drm_plane *cursor_planes[MAX_PLANES] = { NULL }; 730 struct drm_crtc *crtc; 731 struct drm_encoder *encoder; 732 unsigned int num_encoders; 733 734 struct msm_drm_private *priv; 735 const struct dpu_mdss_cfg *catalog; 736 737 int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret; 738 int max_crtc_count; 739 dev = dpu_kms->dev; 740 priv = dev->dev_private; 741 catalog = dpu_kms->catalog; 742 743 /* 744 * Create encoder and query display drivers to create 745 * bridges and connectors 746 */ 747 ret = _dpu_kms_setup_displays(dev, priv, dpu_kms); 748 if (ret) 749 return ret; 750 751 num_encoders = 0; 752 drm_for_each_encoder(encoder, dev) 753 num_encoders++; 754 755 max_crtc_count = min(catalog->mixer_count, num_encoders); 756 757 /* Create the planes, keeping track of one primary/cursor per crtc */ 758 for (i = 0; i < catalog->sspp_count; i++) { 759 enum drm_plane_type type; 760 761 if ((catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR)) 762 && cursor_planes_idx < max_crtc_count) 763 type = DRM_PLANE_TYPE_CURSOR; 764 else if (primary_planes_idx < max_crtc_count) 765 type = DRM_PLANE_TYPE_PRIMARY; 766 else 767 type = DRM_PLANE_TYPE_OVERLAY; 768 769 DPU_DEBUG("Create plane type %d with features %lx (cur %lx)\n", 770 type, catalog->sspp[i].features, 771 catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR)); 772 773 plane = dpu_plane_init(dev, catalog->sspp[i].id, type, 774 (1UL << max_crtc_count) - 1); 775 if (IS_ERR(plane)) { 776 DPU_ERROR("dpu_plane_init failed\n"); 777 ret = PTR_ERR(plane); 778 return ret; 779 } 780 781 if (type == DRM_PLANE_TYPE_CURSOR) 782 cursor_planes[cursor_planes_idx++] = plane; 783 else if (type == DRM_PLANE_TYPE_PRIMARY) 784 primary_planes[primary_planes_idx++] = plane; 785 } 786 787 max_crtc_count = min(max_crtc_count, primary_planes_idx); 788 789 /* Create one CRTC per encoder */ 790 for (i = 0; i < max_crtc_count; i++) { 791 crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]); 792 if (IS_ERR(crtc)) { 793 ret = PTR_ERR(crtc); 794 return ret; 795 } 796 priv->num_crtcs++; 797 } 798 799 /* All CRTCs are compatible with all encoders */ 800 drm_for_each_encoder(encoder, dev) 801 encoder->possible_crtcs = (1 << priv->num_crtcs) - 1; 802 803 return 0; 804 } 805 806 static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms) 807 { 808 int i; 809 810 dpu_kms->hw_intr = NULL; 811 812 /* safe to call these more than once during shutdown */ 813 _dpu_kms_mmu_destroy(dpu_kms); 814 815 for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) { 816 dpu_kms->hw_vbif[i] = NULL; 817 } 818 819 dpu_kms_global_obj_fini(dpu_kms); 820 821 dpu_kms->catalog = NULL; 822 823 dpu_kms->hw_mdp = NULL; 824 } 825 826 static void dpu_kms_destroy(struct msm_kms *kms) 827 { 828 struct dpu_kms *dpu_kms; 829 830 if (!kms) { 831 DPU_ERROR("invalid kms\n"); 832 return; 833 } 834 835 dpu_kms = to_dpu_kms(kms); 836 837 _dpu_kms_hw_destroy(dpu_kms); 838 839 msm_kms_destroy(&dpu_kms->base); 840 841 if (dpu_kms->rpm_enabled) 842 pm_runtime_disable(&dpu_kms->pdev->dev); 843 } 844 845 static int dpu_irq_postinstall(struct msm_kms *kms) 846 { 847 struct msm_drm_private *priv; 848 struct dpu_kms *dpu_kms = to_dpu_kms(kms); 849 850 if (!dpu_kms || !dpu_kms->dev) 851 return -EINVAL; 852 853 priv = dpu_kms->dev->dev_private; 854 if (!priv) 855 return -EINVAL; 856 857 return 0; 858 } 859 860 static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_kms *kms) 861 { 862 int i; 863 struct dpu_kms *dpu_kms; 864 const struct dpu_mdss_cfg *cat; 865 void __iomem *base; 866 867 dpu_kms = to_dpu_kms(kms); 868 869 cat = dpu_kms->catalog; 870 871 pm_runtime_get_sync(&dpu_kms->pdev->dev); 872 873 /* dump CTL sub-blocks HW regs info */ 874 for (i = 0; i < cat->ctl_count; i++) 875 msm_disp_snapshot_add_block(disp_state, cat->ctl[i].len, 876 dpu_kms->mmio + cat->ctl[i].base, cat->ctl[i].name); 877 878 /* dump DSPP sub-blocks HW regs info */ 879 for (i = 0; i < cat->dspp_count; i++) { 880 base = dpu_kms->mmio + cat->dspp[i].base; 881 msm_disp_snapshot_add_block(disp_state, cat->dspp[i].len, base, cat->dspp[i].name); 882 883 if (cat->dspp[i].sblk && cat->dspp[i].sblk->pcc.len > 0) 884 msm_disp_snapshot_add_block(disp_state, cat->dspp[i].sblk->pcc.len, 885 base + cat->dspp[i].sblk->pcc.base, "%s_%s", 886 cat->dspp[i].name, 887 cat->dspp[i].sblk->pcc.name); 888 } 889 890 /* dump INTF sub-blocks HW regs info */ 891 for (i = 0; i < cat->intf_count; i++) 892 msm_disp_snapshot_add_block(disp_state, cat->intf[i].len, 893 dpu_kms->mmio + cat->intf[i].base, cat->intf[i].name); 894 895 /* dump PP sub-blocks HW regs info */ 896 for (i = 0; i < cat->pingpong_count; i++) { 897 base = dpu_kms->mmio + cat->pingpong[i].base; 898 msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].len, base, 899 cat->pingpong[i].name); 900 901 /* TE2 sub-block has length of 0, so will not print it */ 902 903 if (cat->pingpong[i].sblk && cat->pingpong[i].sblk->dither.len > 0) 904 msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].sblk->dither.len, 905 base + cat->pingpong[i].sblk->dither.base, 906 "%s_%s", cat->pingpong[i].name, 907 cat->pingpong[i].sblk->dither.name); 908 } 909 910 /* dump SSPP sub-blocks HW regs info */ 911 for (i = 0; i < cat->sspp_count; i++) { 912 base = dpu_kms->mmio + cat->sspp[i].base; 913 msm_disp_snapshot_add_block(disp_state, cat->sspp[i].len, base, cat->sspp[i].name); 914 915 if (cat->sspp[i].sblk && cat->sspp[i].sblk->scaler_blk.len > 0) 916 msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->scaler_blk.len, 917 base + cat->sspp[i].sblk->scaler_blk.base, 918 "%s_%s", cat->sspp[i].name, 919 cat->sspp[i].sblk->scaler_blk.name); 920 921 if (cat->sspp[i].sblk && cat->sspp[i].sblk->csc_blk.len > 0) 922 msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->csc_blk.len, 923 base + cat->sspp[i].sblk->csc_blk.base, 924 "%s_%s", cat->sspp[i].name, 925 cat->sspp[i].sblk->csc_blk.name); 926 } 927 928 /* dump LM sub-blocks HW regs info */ 929 for (i = 0; i < cat->mixer_count; i++) 930 msm_disp_snapshot_add_block(disp_state, cat->mixer[i].len, 931 dpu_kms->mmio + cat->mixer[i].base, cat->mixer[i].name); 932 933 /* dump WB sub-blocks HW regs info */ 934 for (i = 0; i < cat->wb_count; i++) 935 msm_disp_snapshot_add_block(disp_state, cat->wb[i].len, 936 dpu_kms->mmio + cat->wb[i].base, cat->wb[i].name); 937 938 if (cat->mdp[0].features & BIT(DPU_MDP_PERIPH_0_REMOVED)) { 939 msm_disp_snapshot_add_block(disp_state, MDP_PERIPH_TOP0, 940 dpu_kms->mmio + cat->mdp[0].base, "top"); 941 msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len - MDP_PERIPH_TOP0_END, 942 dpu_kms->mmio + cat->mdp[0].base + MDP_PERIPH_TOP0_END, "top_2"); 943 } else { 944 msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len, 945 dpu_kms->mmio + cat->mdp[0].base, "top"); 946 } 947 948 /* dump DSC sub-blocks HW regs info */ 949 for (i = 0; i < cat->dsc_count; i++) { 950 base = dpu_kms->mmio + cat->dsc[i].base; 951 msm_disp_snapshot_add_block(disp_state, cat->dsc[i].len, base, cat->dsc[i].name); 952 953 if (cat->dsc[i].features & BIT(DPU_DSC_HW_REV_1_2)) { 954 struct dpu_dsc_blk enc = cat->dsc[i].sblk->enc; 955 struct dpu_dsc_blk ctl = cat->dsc[i].sblk->ctl; 956 957 msm_disp_snapshot_add_block(disp_state, enc.len, base + enc.base, "%s_%s", 958 cat->dsc[i].name, enc.name); 959 msm_disp_snapshot_add_block(disp_state, ctl.len, base + ctl.base, "%s_%s", 960 cat->dsc[i].name, ctl.name); 961 } 962 } 963 964 if (cat->cdm) 965 msm_disp_snapshot_add_block(disp_state, cat->cdm->len, 966 dpu_kms->mmio + cat->cdm->base, cat->cdm->name); 967 968 pm_runtime_put_sync(&dpu_kms->pdev->dev); 969 } 970 971 static const struct msm_kms_funcs kms_funcs = { 972 .hw_init = dpu_kms_hw_init, 973 .irq_preinstall = dpu_core_irq_preinstall, 974 .irq_postinstall = dpu_irq_postinstall, 975 .irq_uninstall = dpu_core_irq_uninstall, 976 .irq = dpu_core_irq, 977 .enable_commit = dpu_kms_enable_commit, 978 .disable_commit = dpu_kms_disable_commit, 979 .flush_commit = dpu_kms_flush_commit, 980 .wait_flush = dpu_kms_wait_flush, 981 .complete_commit = dpu_kms_complete_commit, 982 .enable_vblank = dpu_kms_enable_vblank, 983 .disable_vblank = dpu_kms_disable_vblank, 984 .check_modified_format = dpu_format_check_modified_format, 985 .destroy = dpu_kms_destroy, 986 .snapshot = dpu_kms_mdp_snapshot, 987 #ifdef CONFIG_DEBUG_FS 988 .debugfs_init = dpu_kms_debugfs_init, 989 #endif 990 }; 991 992 static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms) 993 { 994 struct msm_mmu *mmu; 995 996 if (!dpu_kms->base.aspace) 997 return; 998 999 mmu = dpu_kms->base.aspace->mmu; 1000 1001 mmu->funcs->detach(mmu); 1002 msm_gem_address_space_put(dpu_kms->base.aspace); 1003 1004 dpu_kms->base.aspace = NULL; 1005 } 1006 1007 static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) 1008 { 1009 struct msm_gem_address_space *aspace; 1010 1011 aspace = msm_kms_init_aspace(dpu_kms->dev); 1012 if (IS_ERR(aspace)) 1013 return PTR_ERR(aspace); 1014 1015 dpu_kms->base.aspace = aspace; 1016 1017 return 0; 1018 } 1019 1020 unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) 1021 { 1022 struct clk *clk; 1023 1024 clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name); 1025 if (!clk) 1026 return 0; 1027 1028 return clk_get_rate(clk); 1029 } 1030 1031 #define DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE 412500000 1032 1033 static int dpu_kms_hw_init(struct msm_kms *kms) 1034 { 1035 struct dpu_kms *dpu_kms; 1036 struct drm_device *dev; 1037 int i, rc = -EINVAL; 1038 unsigned long max_core_clk_rate; 1039 u32 core_rev; 1040 1041 if (!kms) { 1042 DPU_ERROR("invalid kms\n"); 1043 return rc; 1044 } 1045 1046 dpu_kms = to_dpu_kms(kms); 1047 dev = dpu_kms->dev; 1048 1049 dev->mode_config.cursor_width = 512; 1050 dev->mode_config.cursor_height = 512; 1051 1052 rc = dpu_kms_global_obj_init(dpu_kms); 1053 if (rc) 1054 return rc; 1055 1056 atomic_set(&dpu_kms->bandwidth_ref, 0); 1057 1058 rc = pm_runtime_resume_and_get(&dpu_kms->pdev->dev); 1059 if (rc < 0) 1060 goto error; 1061 1062 core_rev = readl_relaxed(dpu_kms->mmio + 0x0); 1063 1064 pr_info("dpu hardware revision:0x%x\n", core_rev); 1065 1066 dpu_kms->catalog = of_device_get_match_data(dev->dev); 1067 if (!dpu_kms->catalog) { 1068 DPU_ERROR("device config not known!\n"); 1069 rc = -EINVAL; 1070 goto err_pm_put; 1071 } 1072 1073 /* 1074 * Now we need to read the HW catalog and initialize resources such as 1075 * clocks, regulators, GDSC/MMAGIC, ioremap the register ranges etc 1076 */ 1077 rc = _dpu_kms_mmu_init(dpu_kms); 1078 if (rc) { 1079 DPU_ERROR("dpu_kms_mmu_init failed: %d\n", rc); 1080 goto err_pm_put; 1081 } 1082 1083 dpu_kms->mdss = msm_mdss_get_mdss_data(dpu_kms->pdev->dev.parent); 1084 if (IS_ERR(dpu_kms->mdss)) { 1085 rc = PTR_ERR(dpu_kms->mdss); 1086 DPU_ERROR("failed to get MDSS data: %d\n", rc); 1087 goto err_pm_put; 1088 } 1089 1090 if (!dpu_kms->mdss) { 1091 rc = -EINVAL; 1092 DPU_ERROR("NULL MDSS data\n"); 1093 goto err_pm_put; 1094 } 1095 1096 rc = dpu_rm_init(dev, &dpu_kms->rm, dpu_kms->catalog, dpu_kms->mdss, dpu_kms->mmio); 1097 if (rc) { 1098 DPU_ERROR("rm init failed: %d\n", rc); 1099 goto err_pm_put; 1100 } 1101 1102 dpu_kms->hw_mdp = dpu_hw_mdptop_init(dev, 1103 dpu_kms->catalog->mdp, 1104 dpu_kms->mmio, 1105 dpu_kms->catalog); 1106 if (IS_ERR(dpu_kms->hw_mdp)) { 1107 rc = PTR_ERR(dpu_kms->hw_mdp); 1108 DPU_ERROR("failed to get hw_mdp: %d\n", rc); 1109 dpu_kms->hw_mdp = NULL; 1110 goto err_pm_put; 1111 } 1112 1113 for (i = 0; i < dpu_kms->catalog->vbif_count; i++) { 1114 struct dpu_hw_vbif *hw; 1115 const struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i]; 1116 1117 hw = dpu_hw_vbif_init(dev, vbif, dpu_kms->vbif[vbif->id]); 1118 if (IS_ERR(hw)) { 1119 rc = PTR_ERR(hw); 1120 DPU_ERROR("failed to init vbif %d: %d\n", vbif->id, rc); 1121 goto err_pm_put; 1122 } 1123 1124 dpu_kms->hw_vbif[vbif->id] = hw; 1125 } 1126 1127 /* TODO: use the same max_freq as in dpu_kms_hw_init */ 1128 max_core_clk_rate = dpu_kms_get_clk_rate(dpu_kms, "core"); 1129 if (!max_core_clk_rate) { 1130 DPU_DEBUG("max core clk rate not determined, using default\n"); 1131 max_core_clk_rate = DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE; 1132 } 1133 1134 rc = dpu_core_perf_init(&dpu_kms->perf, dpu_kms->catalog->perf, max_core_clk_rate); 1135 if (rc) { 1136 DPU_ERROR("failed to init perf %d\n", rc); 1137 goto err_pm_put; 1138 } 1139 1140 dpu_kms->hw_intr = dpu_hw_intr_init(dev, dpu_kms->mmio, dpu_kms->catalog); 1141 if (IS_ERR(dpu_kms->hw_intr)) { 1142 rc = PTR_ERR(dpu_kms->hw_intr); 1143 DPU_ERROR("hw_intr init failed: %d\n", rc); 1144 dpu_kms->hw_intr = NULL; 1145 goto err_pm_put; 1146 } 1147 1148 dev->mode_config.min_width = 0; 1149 dev->mode_config.min_height = 0; 1150 1151 /* 1152 * max crtc width is equal to the max mixer width * 2 and max height is 1153 * is 4K 1154 */ 1155 dev->mode_config.max_width = 1156 dpu_kms->catalog->caps->max_mixer_width * 2; 1157 dev->mode_config.max_height = 4096; 1158 1159 dev->max_vblank_count = 0xffffffff; 1160 /* Disable vblank irqs aggressively for power-saving */ 1161 dev->vblank_disable_immediate = true; 1162 1163 /* 1164 * _dpu_kms_drm_obj_init should create the DRM related objects 1165 * i.e. CRTCs, planes, encoders, connectors and so forth 1166 */ 1167 rc = _dpu_kms_drm_obj_init(dpu_kms); 1168 if (rc) { 1169 DPU_ERROR("modeset init failed: %d\n", rc); 1170 goto err_pm_put; 1171 } 1172 1173 dpu_vbif_init_memtypes(dpu_kms); 1174 1175 pm_runtime_put_sync(&dpu_kms->pdev->dev); 1176 1177 return 0; 1178 1179 err_pm_put: 1180 pm_runtime_put_sync(&dpu_kms->pdev->dev); 1181 error: 1182 _dpu_kms_hw_destroy(dpu_kms); 1183 1184 return rc; 1185 } 1186 1187 static int dpu_kms_init(struct drm_device *ddev) 1188 { 1189 struct msm_drm_private *priv = ddev->dev_private; 1190 struct device *dev = ddev->dev; 1191 struct platform_device *pdev = to_platform_device(dev); 1192 struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); 1193 struct dev_pm_opp *opp; 1194 int ret = 0; 1195 unsigned long max_freq = ULONG_MAX; 1196 1197 opp = dev_pm_opp_find_freq_floor(dev, &max_freq); 1198 if (!IS_ERR(opp)) 1199 dev_pm_opp_put(opp); 1200 1201 dev_pm_opp_set_rate(dev, max_freq); 1202 1203 ret = msm_kms_init(&dpu_kms->base, &kms_funcs); 1204 if (ret) { 1205 DPU_ERROR("failed to init kms, ret=%d\n", ret); 1206 return ret; 1207 } 1208 dpu_kms->dev = ddev; 1209 1210 pm_runtime_enable(&pdev->dev); 1211 dpu_kms->rpm_enabled = true; 1212 1213 return 0; 1214 } 1215 1216 static int dpu_kms_mmap_mdp5(struct dpu_kms *dpu_kms) 1217 { 1218 struct platform_device *pdev = dpu_kms->pdev; 1219 struct platform_device *mdss_dev; 1220 int ret; 1221 1222 if (!dev_is_platform(dpu_kms->pdev->dev.parent)) 1223 return -EINVAL; 1224 1225 mdss_dev = to_platform_device(dpu_kms->pdev->dev.parent); 1226 1227 dpu_kms->mmio = msm_ioremap(pdev, "mdp_phys"); 1228 if (IS_ERR(dpu_kms->mmio)) { 1229 ret = PTR_ERR(dpu_kms->mmio); 1230 DPU_ERROR("mdp register memory map failed: %d\n", ret); 1231 dpu_kms->mmio = NULL; 1232 return ret; 1233 } 1234 DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio); 1235 1236 dpu_kms->vbif[VBIF_RT] = msm_ioremap_mdss(mdss_dev, 1237 dpu_kms->pdev, 1238 "vbif_phys"); 1239 if (IS_ERR(dpu_kms->vbif[VBIF_RT])) { 1240 ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]); 1241 DPU_ERROR("vbif register memory map failed: %d\n", ret); 1242 dpu_kms->vbif[VBIF_RT] = NULL; 1243 return ret; 1244 } 1245 1246 dpu_kms->vbif[VBIF_NRT] = msm_ioremap_mdss(mdss_dev, 1247 dpu_kms->pdev, 1248 "vbif_nrt_phys"); 1249 if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { 1250 dpu_kms->vbif[VBIF_NRT] = NULL; 1251 DPU_DEBUG("VBIF NRT is not defined"); 1252 } 1253 1254 return 0; 1255 } 1256 1257 static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms) 1258 { 1259 struct platform_device *pdev = dpu_kms->pdev; 1260 int ret; 1261 1262 dpu_kms->mmio = msm_ioremap(pdev, "mdp"); 1263 if (IS_ERR(dpu_kms->mmio)) { 1264 ret = PTR_ERR(dpu_kms->mmio); 1265 DPU_ERROR("mdp register memory map failed: %d\n", ret); 1266 dpu_kms->mmio = NULL; 1267 return ret; 1268 } 1269 DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio); 1270 1271 dpu_kms->vbif[VBIF_RT] = msm_ioremap(pdev, "vbif"); 1272 if (IS_ERR(dpu_kms->vbif[VBIF_RT])) { 1273 ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]); 1274 DPU_ERROR("vbif register memory map failed: %d\n", ret); 1275 dpu_kms->vbif[VBIF_RT] = NULL; 1276 return ret; 1277 } 1278 1279 dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(pdev, "vbif_nrt"); 1280 if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { 1281 dpu_kms->vbif[VBIF_NRT] = NULL; 1282 DPU_DEBUG("VBIF NRT is not defined"); 1283 } 1284 1285 return 0; 1286 } 1287 1288 static int dpu_dev_probe(struct platform_device *pdev) 1289 { 1290 struct device *dev = &pdev->dev; 1291 struct dpu_kms *dpu_kms; 1292 int irq; 1293 int ret = 0; 1294 1295 if (!msm_disp_drv_should_bind(&pdev->dev, true)) 1296 return -ENODEV; 1297 1298 dpu_kms = devm_kzalloc(dev, sizeof(*dpu_kms), GFP_KERNEL); 1299 if (!dpu_kms) 1300 return -ENOMEM; 1301 1302 dpu_kms->pdev = pdev; 1303 1304 ret = devm_pm_opp_set_clkname(dev, "core"); 1305 if (ret) 1306 return ret; 1307 /* OPP table is optional */ 1308 ret = devm_pm_opp_of_add_table(dev); 1309 if (ret && ret != -ENODEV) 1310 return dev_err_probe(dev, ret, "invalid OPP table in device tree\n"); 1311 1312 ret = devm_clk_bulk_get_all(&pdev->dev, &dpu_kms->clocks); 1313 if (ret < 0) 1314 return dev_err_probe(dev, ret, "failed to parse clocks\n"); 1315 1316 dpu_kms->num_clocks = ret; 1317 1318 irq = platform_get_irq(pdev, 0); 1319 if (irq < 0) 1320 return dev_err_probe(dev, irq, "failed to get irq\n"); 1321 1322 dpu_kms->base.irq = irq; 1323 1324 if (of_device_is_compatible(dpu_kms->pdev->dev.of_node, "qcom,mdp5")) 1325 ret = dpu_kms_mmap_mdp5(dpu_kms); 1326 else 1327 ret = dpu_kms_mmap_dpu(dpu_kms); 1328 if (ret) 1329 return ret; 1330 1331 ret = dpu_kms_parse_data_bus_icc_path(dpu_kms); 1332 if (ret) 1333 return ret; 1334 1335 return msm_drv_probe(&pdev->dev, dpu_kms_init, &dpu_kms->base); 1336 } 1337 1338 static void dpu_dev_remove(struct platform_device *pdev) 1339 { 1340 component_master_del(&pdev->dev, &msm_drm_ops); 1341 } 1342 1343 static int __maybe_unused dpu_runtime_suspend(struct device *dev) 1344 { 1345 int i; 1346 struct platform_device *pdev = to_platform_device(dev); 1347 struct msm_drm_private *priv = platform_get_drvdata(pdev); 1348 struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); 1349 1350 /* Drop the performance state vote */ 1351 dev_pm_opp_set_rate(dev, 0); 1352 clk_bulk_disable_unprepare(dpu_kms->num_clocks, dpu_kms->clocks); 1353 1354 for (i = 0; i < dpu_kms->num_paths; i++) 1355 icc_set_bw(dpu_kms->path[i], 0, 0); 1356 1357 return 0; 1358 } 1359 1360 static int __maybe_unused dpu_runtime_resume(struct device *dev) 1361 { 1362 int rc = -1; 1363 struct platform_device *pdev = to_platform_device(dev); 1364 struct msm_drm_private *priv = platform_get_drvdata(pdev); 1365 struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); 1366 struct drm_encoder *encoder; 1367 struct drm_device *ddev; 1368 1369 ddev = dpu_kms->dev; 1370 1371 rc = clk_bulk_prepare_enable(dpu_kms->num_clocks, dpu_kms->clocks); 1372 if (rc) { 1373 DPU_ERROR("clock enable failed rc:%d\n", rc); 1374 return rc; 1375 } 1376 1377 dpu_vbif_init_memtypes(dpu_kms); 1378 1379 drm_for_each_encoder(encoder, ddev) 1380 dpu_encoder_virt_runtime_resume(encoder); 1381 1382 return rc; 1383 } 1384 1385 static const struct dev_pm_ops dpu_pm_ops = { 1386 SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL) 1387 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, 1388 pm_runtime_force_resume) 1389 .prepare = msm_kms_pm_prepare, 1390 .complete = msm_kms_pm_complete, 1391 }; 1392 1393 static const struct of_device_id dpu_dt_match[] = { 1394 { .compatible = "qcom,msm8998-dpu", .data = &dpu_msm8998_cfg, }, 1395 { .compatible = "qcom,qcm2290-dpu", .data = &dpu_qcm2290_cfg, }, 1396 { .compatible = "qcom,sdm630-mdp5", .data = &dpu_sdm630_cfg, }, 1397 { .compatible = "qcom,sdm660-mdp5", .data = &dpu_sdm660_cfg, }, 1398 { .compatible = "qcom,sdm670-dpu", .data = &dpu_sdm670_cfg, }, 1399 { .compatible = "qcom,sdm845-dpu", .data = &dpu_sdm845_cfg, }, 1400 { .compatible = "qcom,sc7180-dpu", .data = &dpu_sc7180_cfg, }, 1401 { .compatible = "qcom,sc7280-dpu", .data = &dpu_sc7280_cfg, }, 1402 { .compatible = "qcom,sc8180x-dpu", .data = &dpu_sc8180x_cfg, }, 1403 { .compatible = "qcom,sc8280xp-dpu", .data = &dpu_sc8280xp_cfg, }, 1404 { .compatible = "qcom,sm6115-dpu", .data = &dpu_sm6115_cfg, }, 1405 { .compatible = "qcom,sm6125-dpu", .data = &dpu_sm6125_cfg, }, 1406 { .compatible = "qcom,sm6350-dpu", .data = &dpu_sm6350_cfg, }, 1407 { .compatible = "qcom,sm6375-dpu", .data = &dpu_sm6375_cfg, }, 1408 { .compatible = "qcom,sm8150-dpu", .data = &dpu_sm8150_cfg, }, 1409 { .compatible = "qcom,sm8250-dpu", .data = &dpu_sm8250_cfg, }, 1410 { .compatible = "qcom,sm8350-dpu", .data = &dpu_sm8350_cfg, }, 1411 { .compatible = "qcom,sm8450-dpu", .data = &dpu_sm8450_cfg, }, 1412 { .compatible = "qcom,sm8550-dpu", .data = &dpu_sm8550_cfg, }, 1413 { .compatible = "qcom,sm8650-dpu", .data = &dpu_sm8650_cfg, }, 1414 { .compatible = "qcom,x1e80100-dpu", .data = &dpu_x1e80100_cfg, }, 1415 {} 1416 }; 1417 MODULE_DEVICE_TABLE(of, dpu_dt_match); 1418 1419 static struct platform_driver dpu_driver = { 1420 .probe = dpu_dev_probe, 1421 .remove_new = dpu_dev_remove, 1422 .shutdown = msm_kms_shutdown, 1423 .driver = { 1424 .name = "msm_dpu", 1425 .of_match_table = dpu_dt_match, 1426 .pm = &dpu_pm_ops, 1427 }, 1428 }; 1429 1430 void __init msm_dpu_register(void) 1431 { 1432 platform_driver_register(&dpu_driver); 1433 } 1434 1435 void __exit msm_dpu_unregister(void) 1436 { 1437 platform_driver_unregister(&dpu_driver); 1438 } 1439