xref: /linux/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c (revision 7204df5e7e681238d457da03502f4b653403d7e7)
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 	int ret;
321 
322 	ret = drm_modeset_lock(&dpu_kms->global_state_lock, s->acquire_ctx);
323 	if (ret)
324 		return ERR_PTR(ret);
325 
326 	priv_state = drm_atomic_get_private_obj_state(s,
327 						&dpu_kms->global_state);
328 	if (IS_ERR(priv_state))
329 		return ERR_CAST(priv_state);
330 
331 	return to_dpu_global_state(priv_state);
332 }
333 
334 static struct drm_private_state *
335 dpu_kms_global_duplicate_state(struct drm_private_obj *obj)
336 {
337 	struct dpu_global_state *state;
338 
339 	state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
340 	if (!state)
341 		return NULL;
342 
343 	__drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
344 
345 	return &state->base;
346 }
347 
348 static void dpu_kms_global_destroy_state(struct drm_private_obj *obj,
349 				      struct drm_private_state *state)
350 {
351 	struct dpu_global_state *dpu_state = to_dpu_global_state(state);
352 
353 	kfree(dpu_state);
354 }
355 
356 static const struct drm_private_state_funcs dpu_kms_global_state_funcs = {
357 	.atomic_duplicate_state = dpu_kms_global_duplicate_state,
358 	.atomic_destroy_state = dpu_kms_global_destroy_state,
359 };
360 
361 static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
362 {
363 	struct dpu_global_state *state;
364 
365 	drm_modeset_lock_init(&dpu_kms->global_state_lock);
366 
367 	state = kzalloc(sizeof(*state), GFP_KERNEL);
368 	if (!state)
369 		return -ENOMEM;
370 
371 	drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state,
372 				    &state->base,
373 				    &dpu_kms_global_state_funcs);
374 	return 0;
375 }
376 
377 static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms)
378 {
379 	struct icc_path *path0;
380 	struct icc_path *path1;
381 	struct device *dpu_dev = &dpu_kms->pdev->dev;
382 
383 	path0 = msm_icc_get(dpu_dev, "mdp0-mem");
384 	path1 = msm_icc_get(dpu_dev, "mdp1-mem");
385 
386 	if (IS_ERR_OR_NULL(path0))
387 		return PTR_ERR_OR_ZERO(path0);
388 
389 	dpu_kms->path[0] = path0;
390 	dpu_kms->num_paths = 1;
391 
392 	if (!IS_ERR_OR_NULL(path1)) {
393 		dpu_kms->path[1] = path1;
394 		dpu_kms->num_paths++;
395 	}
396 	return 0;
397 }
398 
399 static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
400 {
401 	return dpu_crtc_vblank(crtc, true);
402 }
403 
404 static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
405 {
406 	dpu_crtc_vblank(crtc, false);
407 }
408 
409 static void dpu_kms_enable_commit(struct msm_kms *kms)
410 {
411 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
412 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
413 }
414 
415 static void dpu_kms_disable_commit(struct msm_kms *kms)
416 {
417 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
418 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
419 }
420 
421 static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
422 {
423 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
424 	struct drm_crtc *crtc;
425 
426 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) {
427 		if (!crtc->state->active)
428 			continue;
429 
430 		trace_dpu_kms_commit(DRMID(crtc));
431 		dpu_crtc_commit_kickoff(crtc);
432 	}
433 }
434 
435 static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
436 {
437 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
438 	struct drm_crtc *crtc;
439 
440 	DPU_ATRACE_BEGIN("kms_complete_commit");
441 
442 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
443 		dpu_crtc_complete_commit(crtc);
444 
445 	DPU_ATRACE_END("kms_complete_commit");
446 }
447 
448 static void dpu_kms_wait_for_commit_done(struct msm_kms *kms,
449 		struct drm_crtc *crtc)
450 {
451 	struct drm_encoder *encoder;
452 	struct drm_device *dev;
453 	int ret;
454 
455 	if (!kms || !crtc || !crtc->state) {
456 		DPU_ERROR("invalid params\n");
457 		return;
458 	}
459 
460 	dev = crtc->dev;
461 
462 	if (!crtc->state->enable) {
463 		DPU_DEBUG("[crtc:%d] not enable\n", crtc->base.id);
464 		return;
465 	}
466 
467 	if (!drm_atomic_crtc_effectively_active(crtc->state)) {
468 		DPU_DEBUG("[crtc:%d] not active\n", crtc->base.id);
469 		return;
470 	}
471 
472 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
473 		if (encoder->crtc != crtc)
474 			continue;
475 		/*
476 		 * Wait for post-flush if necessary to delay before
477 		 * plane_cleanup. For example, wait for vsync in case of video
478 		 * mode panels. This may be a no-op for command mode panels.
479 		 */
480 		trace_dpu_kms_wait_for_commit_done(DRMID(crtc));
481 		ret = dpu_encoder_wait_for_event(encoder, MSM_ENC_COMMIT_DONE);
482 		if (ret && ret != -EWOULDBLOCK) {
483 			DPU_ERROR("wait for commit done returned %d\n", ret);
484 			break;
485 		}
486 	}
487 }
488 
489 static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
490 {
491 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
492 	struct drm_crtc *crtc;
493 
494 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
495 		dpu_kms_wait_for_commit_done(kms, crtc);
496 }
497 
498 static int _dpu_kms_initialize_dsi(struct drm_device *dev,
499 				    struct msm_drm_private *priv,
500 				    struct dpu_kms *dpu_kms)
501 {
502 	struct drm_encoder *encoder = NULL;
503 	struct msm_display_info info;
504 	int i, rc = 0;
505 
506 	if (!(priv->dsi[0] || priv->dsi[1]))
507 		return rc;
508 
509 	/*
510 	 * We support following confiurations:
511 	 * - Single DSI host (dsi0 or dsi1)
512 	 * - Two independent DSI hosts
513 	 * - Bonded DSI0 and DSI1 hosts
514 	 *
515 	 * TODO: Support swapping DSI0 and DSI1 in the bonded setup.
516 	 */
517 	for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
518 		int other = (i + 1) % 2;
519 
520 		if (!priv->dsi[i])
521 			continue;
522 
523 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]) &&
524 		    !msm_dsi_is_master_dsi(priv->dsi[i]))
525 			continue;
526 
527 		memset(&info, 0, sizeof(info));
528 		info.intf_type = INTF_DSI;
529 
530 		info.h_tile_instance[info.num_of_h_tiles++] = i;
531 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]))
532 			info.h_tile_instance[info.num_of_h_tiles++] = other;
533 
534 		info.is_cmd_mode = msm_dsi_is_cmd_mode(priv->dsi[i]);
535 
536 		encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI, &info);
537 		if (IS_ERR(encoder)) {
538 			DPU_ERROR("encoder init failed for dsi display\n");
539 			return PTR_ERR(encoder);
540 		}
541 
542 		rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
543 		if (rc) {
544 			DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
545 				i, rc);
546 			break;
547 		}
548 
549 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) {
550 			rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder);
551 			if (rc) {
552 				DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
553 					other, rc);
554 				break;
555 			}
556 		}
557 	}
558 
559 	return rc;
560 }
561 
562 static int _dpu_kms_initialize_displayport(struct drm_device *dev,
563 					    struct msm_drm_private *priv,
564 					    struct dpu_kms *dpu_kms)
565 {
566 	struct drm_encoder *encoder = NULL;
567 	struct msm_display_info info;
568 	int rc;
569 	int i;
570 
571 	for (i = 0; i < ARRAY_SIZE(priv->dp); i++) {
572 		if (!priv->dp[i])
573 			continue;
574 
575 		memset(&info, 0, sizeof(info));
576 		info.num_of_h_tiles = 1;
577 		info.h_tile_instance[0] = i;
578 		info.intf_type = INTF_DP;
579 
580 		encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info);
581 		if (IS_ERR(encoder)) {
582 			DPU_ERROR("encoder init failed for dsi display\n");
583 			return PTR_ERR(encoder);
584 		}
585 
586 		rc = msm_dp_modeset_init(priv->dp[i], dev, encoder);
587 		if (rc) {
588 			DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
589 			return rc;
590 		}
591 	}
592 
593 	return 0;
594 }
595 
596 static int _dpu_kms_initialize_hdmi(struct drm_device *dev,
597 				    struct msm_drm_private *priv,
598 				    struct dpu_kms *dpu_kms)
599 {
600 	struct drm_encoder *encoder = NULL;
601 	struct msm_display_info info;
602 	int rc;
603 
604 	if (!priv->hdmi)
605 		return 0;
606 
607 	memset(&info, 0, sizeof(info));
608 	info.num_of_h_tiles = 1;
609 	info.h_tile_instance[0] = 0;
610 	info.intf_type = INTF_HDMI;
611 
612 	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info);
613 	if (IS_ERR(encoder)) {
614 		DPU_ERROR("encoder init failed for HDMI display\n");
615 		return PTR_ERR(encoder);
616 	}
617 
618 	rc = msm_hdmi_modeset_init(priv->hdmi, dev, encoder);
619 	if (rc) {
620 		DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
621 		return rc;
622 	}
623 
624 	return 0;
625 }
626 
627 static int _dpu_kms_initialize_writeback(struct drm_device *dev,
628 		struct msm_drm_private *priv, struct dpu_kms *dpu_kms,
629 		const u32 *wb_formats, int n_formats)
630 {
631 	struct drm_encoder *encoder = NULL;
632 	struct msm_display_info info;
633 	const enum dpu_wb wb_idx = WB_2;
634 	u32 maxlinewidth;
635 	int rc;
636 
637 	memset(&info, 0, sizeof(info));
638 
639 	info.num_of_h_tiles = 1;
640 	/* use only WB idx 2 instance for DPU */
641 	info.h_tile_instance[0] = wb_idx;
642 	info.intf_type = INTF_WB;
643 
644 	maxlinewidth = dpu_rm_get_wb(&dpu_kms->rm, info.h_tile_instance[0])->caps->maxlinewidth;
645 
646 	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL, &info);
647 	if (IS_ERR(encoder)) {
648 		DPU_ERROR("encoder init failed for dsi display\n");
649 		return PTR_ERR(encoder);
650 	}
651 
652 	rc = dpu_writeback_init(dev, encoder, wb_formats, n_formats, maxlinewidth);
653 	if (rc) {
654 		DPU_ERROR("dpu_writeback_init, rc = %d\n", rc);
655 		return rc;
656 	}
657 
658 	return 0;
659 }
660 
661 /**
662  * _dpu_kms_setup_displays - create encoders, bridges and connectors
663  *                           for underlying displays
664  * @dev:        Pointer to drm device structure
665  * @priv:       Pointer to private drm device data
666  * @dpu_kms:    Pointer to dpu kms structure
667  * Returns:     Zero on success
668  */
669 static int _dpu_kms_setup_displays(struct drm_device *dev,
670 				    struct msm_drm_private *priv,
671 				    struct dpu_kms *dpu_kms)
672 {
673 	int rc = 0;
674 	int i;
675 
676 	rc = _dpu_kms_initialize_dsi(dev, priv, dpu_kms);
677 	if (rc) {
678 		DPU_ERROR("initialize_dsi failed, rc = %d\n", rc);
679 		return rc;
680 	}
681 
682 	rc = _dpu_kms_initialize_displayport(dev, priv, dpu_kms);
683 	if (rc) {
684 		DPU_ERROR("initialize_DP failed, rc = %d\n", rc);
685 		return rc;
686 	}
687 
688 	rc = _dpu_kms_initialize_hdmi(dev, priv, dpu_kms);
689 	if (rc) {
690 		DPU_ERROR("initialize HDMI failed, rc = %d\n", rc);
691 		return rc;
692 	}
693 
694 	/* Since WB isn't a driver check the catalog before initializing */
695 	if (dpu_kms->catalog->wb_count) {
696 		for (i = 0; i < dpu_kms->catalog->wb_count; i++) {
697 			if (dpu_kms->catalog->wb[i].id == WB_2) {
698 				rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms,
699 						dpu_kms->catalog->wb[i].format_list,
700 						dpu_kms->catalog->wb[i].num_formats);
701 				if (rc) {
702 					DPU_ERROR("initialize_WB failed, rc = %d\n", rc);
703 					return rc;
704 				}
705 			}
706 		}
707 	}
708 
709 	return rc;
710 }
711 
712 #define MAX_PLANES 20
713 static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
714 {
715 	struct drm_device *dev;
716 	struct drm_plane *primary_planes[MAX_PLANES], *plane;
717 	struct drm_plane *cursor_planes[MAX_PLANES] = { NULL };
718 	struct drm_crtc *crtc;
719 	struct drm_encoder *encoder;
720 	unsigned int num_encoders;
721 
722 	struct msm_drm_private *priv;
723 	const struct dpu_mdss_cfg *catalog;
724 
725 	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
726 	int max_crtc_count;
727 	dev = dpu_kms->dev;
728 	priv = dev->dev_private;
729 	catalog = dpu_kms->catalog;
730 
731 	/*
732 	 * Create encoder and query display drivers to create
733 	 * bridges and connectors
734 	 */
735 	ret = _dpu_kms_setup_displays(dev, priv, dpu_kms);
736 	if (ret)
737 		return ret;
738 
739 	num_encoders = 0;
740 	drm_for_each_encoder(encoder, dev)
741 		num_encoders++;
742 
743 	max_crtc_count = min(catalog->mixer_count, num_encoders);
744 
745 	/* Create the planes, keeping track of one primary/cursor per crtc */
746 	for (i = 0; i < catalog->sspp_count; i++) {
747 		enum drm_plane_type type;
748 
749 		if ((catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR))
750 			&& cursor_planes_idx < max_crtc_count)
751 			type = DRM_PLANE_TYPE_CURSOR;
752 		else if (primary_planes_idx < max_crtc_count)
753 			type = DRM_PLANE_TYPE_PRIMARY;
754 		else
755 			type = DRM_PLANE_TYPE_OVERLAY;
756 
757 		DPU_DEBUG("Create plane type %d with features %lx (cur %lx)\n",
758 			  type, catalog->sspp[i].features,
759 			  catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR));
760 
761 		plane = dpu_plane_init(dev, catalog->sspp[i].id, type,
762 				       (1UL << max_crtc_count) - 1);
763 		if (IS_ERR(plane)) {
764 			DPU_ERROR("dpu_plane_init failed\n");
765 			ret = PTR_ERR(plane);
766 			return ret;
767 		}
768 
769 		if (type == DRM_PLANE_TYPE_CURSOR)
770 			cursor_planes[cursor_planes_idx++] = plane;
771 		else if (type == DRM_PLANE_TYPE_PRIMARY)
772 			primary_planes[primary_planes_idx++] = plane;
773 	}
774 
775 	max_crtc_count = min(max_crtc_count, primary_planes_idx);
776 
777 	/* Create one CRTC per encoder */
778 	for (i = 0; i < max_crtc_count; i++) {
779 		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]);
780 		if (IS_ERR(crtc)) {
781 			ret = PTR_ERR(crtc);
782 			return ret;
783 		}
784 		priv->num_crtcs++;
785 	}
786 
787 	/* All CRTCs are compatible with all encoders */
788 	drm_for_each_encoder(encoder, dev)
789 		encoder->possible_crtcs = (1 << priv->num_crtcs) - 1;
790 
791 	return 0;
792 }
793 
794 static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
795 {
796 	int i;
797 
798 	dpu_kms->hw_intr = NULL;
799 
800 	/* safe to call these more than once during shutdown */
801 	_dpu_kms_mmu_destroy(dpu_kms);
802 
803 	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
804 		dpu_kms->hw_vbif[i] = NULL;
805 	}
806 
807 	dpu_kms->catalog = NULL;
808 
809 	dpu_kms->hw_mdp = NULL;
810 }
811 
812 static void dpu_kms_destroy(struct msm_kms *kms)
813 {
814 	struct dpu_kms *dpu_kms;
815 
816 	if (!kms) {
817 		DPU_ERROR("invalid kms\n");
818 		return;
819 	}
820 
821 	dpu_kms = to_dpu_kms(kms);
822 
823 	_dpu_kms_hw_destroy(dpu_kms);
824 
825 	msm_kms_destroy(&dpu_kms->base);
826 
827 	if (dpu_kms->rpm_enabled)
828 		pm_runtime_disable(&dpu_kms->pdev->dev);
829 }
830 
831 static int dpu_irq_postinstall(struct msm_kms *kms)
832 {
833 	struct msm_drm_private *priv;
834 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
835 
836 	if (!dpu_kms || !dpu_kms->dev)
837 		return -EINVAL;
838 
839 	priv = dpu_kms->dev->dev_private;
840 	if (!priv)
841 		return -EINVAL;
842 
843 	return 0;
844 }
845 
846 static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_kms *kms)
847 {
848 	int i;
849 	struct dpu_kms *dpu_kms;
850 	const struct dpu_mdss_cfg *cat;
851 	void __iomem *base;
852 
853 	dpu_kms = to_dpu_kms(kms);
854 
855 	cat = dpu_kms->catalog;
856 
857 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
858 
859 	/* dump CTL sub-blocks HW regs info */
860 	for (i = 0; i < cat->ctl_count; i++)
861 		msm_disp_snapshot_add_block(disp_state, cat->ctl[i].len,
862 				dpu_kms->mmio + cat->ctl[i].base, cat->ctl[i].name);
863 
864 	/* dump DSPP sub-blocks HW regs info */
865 	for (i = 0; i < cat->dspp_count; i++) {
866 		base = dpu_kms->mmio + cat->dspp[i].base;
867 		msm_disp_snapshot_add_block(disp_state, cat->dspp[i].len, base, cat->dspp[i].name);
868 
869 		if (cat->dspp[i].sblk && cat->dspp[i].sblk->pcc.len > 0)
870 			msm_disp_snapshot_add_block(disp_state, cat->dspp[i].sblk->pcc.len,
871 						    base + cat->dspp[i].sblk->pcc.base, "%s_%s",
872 						    cat->dspp[i].name,
873 						    cat->dspp[i].sblk->pcc.name);
874 	}
875 
876 	/* dump INTF sub-blocks HW regs info */
877 	for (i = 0; i < cat->intf_count; i++)
878 		msm_disp_snapshot_add_block(disp_state, cat->intf[i].len,
879 				dpu_kms->mmio + cat->intf[i].base, cat->intf[i].name);
880 
881 	/* dump PP sub-blocks HW regs info */
882 	for (i = 0; i < cat->pingpong_count; i++) {
883 		base = dpu_kms->mmio + cat->pingpong[i].base;
884 		msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].len, base,
885 					    cat->pingpong[i].name);
886 
887 		/* TE2 sub-block has length of 0, so will not print it */
888 
889 		if (cat->pingpong[i].sblk && cat->pingpong[i].sblk->dither.len > 0)
890 			msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].sblk->dither.len,
891 						    base + cat->pingpong[i].sblk->dither.base,
892 						    "%s_%s", cat->pingpong[i].name,
893 						    cat->pingpong[i].sblk->dither.name);
894 	}
895 
896 	/* dump SSPP sub-blocks HW regs info */
897 	for (i = 0; i < cat->sspp_count; i++) {
898 		base = dpu_kms->mmio + cat->sspp[i].base;
899 		msm_disp_snapshot_add_block(disp_state, cat->sspp[i].len, base, cat->sspp[i].name);
900 
901 		if (cat->sspp[i].sblk && cat->sspp[i].sblk->scaler_blk.len > 0)
902 			msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->scaler_blk.len,
903 						    base + cat->sspp[i].sblk->scaler_blk.base,
904 						    "%s_%s", cat->sspp[i].name,
905 						    cat->sspp[i].sblk->scaler_blk.name);
906 
907 		if (cat->sspp[i].sblk && cat->sspp[i].sblk->csc_blk.len > 0)
908 			msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->csc_blk.len,
909 						    base + cat->sspp[i].sblk->csc_blk.base,
910 						    "%s_%s", cat->sspp[i].name,
911 						    cat->sspp[i].sblk->csc_blk.name);
912 	}
913 
914 	/* dump LM sub-blocks HW regs info */
915 	for (i = 0; i < cat->mixer_count; i++)
916 		msm_disp_snapshot_add_block(disp_state, cat->mixer[i].len,
917 				dpu_kms->mmio + cat->mixer[i].base, cat->mixer[i].name);
918 
919 	/* dump WB sub-blocks HW regs info */
920 	for (i = 0; i < cat->wb_count; i++)
921 		msm_disp_snapshot_add_block(disp_state, cat->wb[i].len,
922 				dpu_kms->mmio + cat->wb[i].base, cat->wb[i].name);
923 
924 	if (cat->mdp[0].features & BIT(DPU_MDP_PERIPH_0_REMOVED)) {
925 		msm_disp_snapshot_add_block(disp_state, MDP_PERIPH_TOP0,
926 				dpu_kms->mmio + cat->mdp[0].base, "top");
927 		msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len - MDP_PERIPH_TOP0_END,
928 				dpu_kms->mmio + cat->mdp[0].base + MDP_PERIPH_TOP0_END, "top_2");
929 	} else {
930 		msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len,
931 				dpu_kms->mmio + cat->mdp[0].base, "top");
932 	}
933 
934 	/* dump DSC sub-blocks HW regs info */
935 	for (i = 0; i < cat->dsc_count; i++) {
936 		base = dpu_kms->mmio + cat->dsc[i].base;
937 		msm_disp_snapshot_add_block(disp_state, cat->dsc[i].len, base, cat->dsc[i].name);
938 
939 		if (cat->dsc[i].features & BIT(DPU_DSC_HW_REV_1_2)) {
940 			struct dpu_dsc_blk enc = cat->dsc[i].sblk->enc;
941 			struct dpu_dsc_blk ctl = cat->dsc[i].sblk->ctl;
942 
943 			msm_disp_snapshot_add_block(disp_state, enc.len, base + enc.base, "%s_%s",
944 						    cat->dsc[i].name, enc.name);
945 			msm_disp_snapshot_add_block(disp_state, ctl.len, base + ctl.base, "%s_%s",
946 						    cat->dsc[i].name, ctl.name);
947 		}
948 	}
949 
950 	if (cat->cdm)
951 		msm_disp_snapshot_add_block(disp_state, cat->cdm->len,
952 					    dpu_kms->mmio + cat->cdm->base, cat->cdm->name);
953 
954 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
955 }
956 
957 static const struct msm_kms_funcs kms_funcs = {
958 	.hw_init         = dpu_kms_hw_init,
959 	.irq_preinstall  = dpu_core_irq_preinstall,
960 	.irq_postinstall = dpu_irq_postinstall,
961 	.irq_uninstall   = dpu_core_irq_uninstall,
962 	.irq             = dpu_core_irq,
963 	.enable_commit   = dpu_kms_enable_commit,
964 	.disable_commit  = dpu_kms_disable_commit,
965 	.flush_commit    = dpu_kms_flush_commit,
966 	.wait_flush      = dpu_kms_wait_flush,
967 	.complete_commit = dpu_kms_complete_commit,
968 	.enable_vblank   = dpu_kms_enable_vblank,
969 	.disable_vblank  = dpu_kms_disable_vblank,
970 	.check_modified_format = dpu_format_check_modified_format,
971 	.get_format      = dpu_get_msm_format,
972 	.destroy         = dpu_kms_destroy,
973 	.snapshot        = dpu_kms_mdp_snapshot,
974 #ifdef CONFIG_DEBUG_FS
975 	.debugfs_init    = dpu_kms_debugfs_init,
976 #endif
977 };
978 
979 static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms)
980 {
981 	struct msm_mmu *mmu;
982 
983 	if (!dpu_kms->base.aspace)
984 		return;
985 
986 	mmu = dpu_kms->base.aspace->mmu;
987 
988 	mmu->funcs->detach(mmu);
989 	msm_gem_address_space_put(dpu_kms->base.aspace);
990 
991 	dpu_kms->base.aspace = NULL;
992 }
993 
994 static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms)
995 {
996 	struct msm_gem_address_space *aspace;
997 
998 	aspace = msm_kms_init_aspace(dpu_kms->dev);
999 	if (IS_ERR(aspace))
1000 		return PTR_ERR(aspace);
1001 
1002 	dpu_kms->base.aspace = aspace;
1003 
1004 	return 0;
1005 }
1006 
1007 unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name)
1008 {
1009 	struct clk *clk;
1010 
1011 	clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name);
1012 	if (!clk)
1013 		return 0;
1014 
1015 	return clk_get_rate(clk);
1016 }
1017 
1018 #define	DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE	412500000
1019 
1020 static int dpu_kms_hw_init(struct msm_kms *kms)
1021 {
1022 	struct dpu_kms *dpu_kms;
1023 	struct drm_device *dev;
1024 	int i, rc = -EINVAL;
1025 	unsigned long max_core_clk_rate;
1026 	u32 core_rev;
1027 
1028 	if (!kms) {
1029 		DPU_ERROR("invalid kms\n");
1030 		return rc;
1031 	}
1032 
1033 	dpu_kms = to_dpu_kms(kms);
1034 	dev = dpu_kms->dev;
1035 
1036 	dev->mode_config.cursor_width = 512;
1037 	dev->mode_config.cursor_height = 512;
1038 
1039 	rc = dpu_kms_global_obj_init(dpu_kms);
1040 	if (rc)
1041 		return rc;
1042 
1043 	atomic_set(&dpu_kms->bandwidth_ref, 0);
1044 
1045 	rc = pm_runtime_resume_and_get(&dpu_kms->pdev->dev);
1046 	if (rc < 0)
1047 		goto error;
1048 
1049 	core_rev = readl_relaxed(dpu_kms->mmio + 0x0);
1050 
1051 	pr_info("dpu hardware revision:0x%x\n", core_rev);
1052 
1053 	dpu_kms->catalog = of_device_get_match_data(dev->dev);
1054 	if (!dpu_kms->catalog) {
1055 		DPU_ERROR("device config not known!\n");
1056 		rc = -EINVAL;
1057 		goto err_pm_put;
1058 	}
1059 
1060 	/*
1061 	 * Now we need to read the HW catalog and initialize resources such as
1062 	 * clocks, regulators, GDSC/MMAGIC, ioremap the register ranges etc
1063 	 */
1064 	rc = _dpu_kms_mmu_init(dpu_kms);
1065 	if (rc) {
1066 		DPU_ERROR("dpu_kms_mmu_init failed: %d\n", rc);
1067 		goto err_pm_put;
1068 	}
1069 
1070 	dpu_kms->mdss = msm_mdss_get_mdss_data(dpu_kms->pdev->dev.parent);
1071 	if (IS_ERR(dpu_kms->mdss)) {
1072 		rc = PTR_ERR(dpu_kms->mdss);
1073 		DPU_ERROR("failed to get MDSS data: %d\n", rc);
1074 		goto err_pm_put;
1075 	}
1076 
1077 	if (!dpu_kms->mdss) {
1078 		rc = -EINVAL;
1079 		DPU_ERROR("NULL MDSS data\n");
1080 		goto err_pm_put;
1081 	}
1082 
1083 	rc = dpu_rm_init(dev, &dpu_kms->rm, dpu_kms->catalog, dpu_kms->mdss, dpu_kms->mmio);
1084 	if (rc) {
1085 		DPU_ERROR("rm init failed: %d\n", rc);
1086 		goto err_pm_put;
1087 	}
1088 
1089 	dpu_kms->hw_mdp = dpu_hw_mdptop_init(dev,
1090 					     dpu_kms->catalog->mdp,
1091 					     dpu_kms->mmio,
1092 					     dpu_kms->catalog);
1093 	if (IS_ERR(dpu_kms->hw_mdp)) {
1094 		rc = PTR_ERR(dpu_kms->hw_mdp);
1095 		DPU_ERROR("failed to get hw_mdp: %d\n", rc);
1096 		dpu_kms->hw_mdp = NULL;
1097 		goto err_pm_put;
1098 	}
1099 
1100 	for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
1101 		struct dpu_hw_vbif *hw;
1102 		const struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i];
1103 
1104 		hw = dpu_hw_vbif_init(dev, vbif, dpu_kms->vbif[vbif->id]);
1105 		if (IS_ERR(hw)) {
1106 			rc = PTR_ERR(hw);
1107 			DPU_ERROR("failed to init vbif %d: %d\n", vbif->id, rc);
1108 			goto err_pm_put;
1109 		}
1110 
1111 		dpu_kms->hw_vbif[vbif->id] = hw;
1112 	}
1113 
1114 	/* TODO: use the same max_freq as in dpu_kms_hw_init */
1115 	max_core_clk_rate = dpu_kms_get_clk_rate(dpu_kms, "core");
1116 	if (!max_core_clk_rate) {
1117 		DPU_DEBUG("max core clk rate not determined, using default\n");
1118 		max_core_clk_rate = DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE;
1119 	}
1120 
1121 	rc = dpu_core_perf_init(&dpu_kms->perf, dpu_kms->catalog->perf, max_core_clk_rate);
1122 	if (rc) {
1123 		DPU_ERROR("failed to init perf %d\n", rc);
1124 		goto err_pm_put;
1125 	}
1126 
1127 	dpu_kms->hw_intr = dpu_hw_intr_init(dev, dpu_kms->mmio, dpu_kms->catalog);
1128 	if (IS_ERR(dpu_kms->hw_intr)) {
1129 		rc = PTR_ERR(dpu_kms->hw_intr);
1130 		DPU_ERROR("hw_intr init failed: %d\n", rc);
1131 		dpu_kms->hw_intr = NULL;
1132 		goto err_pm_put;
1133 	}
1134 
1135 	dev->mode_config.min_width = 0;
1136 	dev->mode_config.min_height = 0;
1137 
1138 	/*
1139 	 * max crtc width is equal to the max mixer width * 2 and max height is
1140 	 * is 4K
1141 	 */
1142 	dev->mode_config.max_width =
1143 			dpu_kms->catalog->caps->max_mixer_width * 2;
1144 	dev->mode_config.max_height = 4096;
1145 
1146 	dev->max_vblank_count = 0xffffffff;
1147 	/* Disable vblank irqs aggressively for power-saving */
1148 	dev->vblank_disable_immediate = true;
1149 
1150 	/*
1151 	 * _dpu_kms_drm_obj_init should create the DRM related objects
1152 	 * i.e. CRTCs, planes, encoders, connectors and so forth
1153 	 */
1154 	rc = _dpu_kms_drm_obj_init(dpu_kms);
1155 	if (rc) {
1156 		DPU_ERROR("modeset init failed: %d\n", rc);
1157 		goto err_pm_put;
1158 	}
1159 
1160 	dpu_vbif_init_memtypes(dpu_kms);
1161 
1162 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
1163 
1164 	return 0;
1165 
1166 err_pm_put:
1167 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
1168 error:
1169 	_dpu_kms_hw_destroy(dpu_kms);
1170 
1171 	return rc;
1172 }
1173 
1174 static int dpu_kms_init(struct drm_device *ddev)
1175 {
1176 	struct msm_drm_private *priv = ddev->dev_private;
1177 	struct device *dev = ddev->dev;
1178 	struct platform_device *pdev = to_platform_device(dev);
1179 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1180 	struct dev_pm_opp *opp;
1181 	int ret = 0;
1182 	unsigned long max_freq = ULONG_MAX;
1183 
1184 	opp = dev_pm_opp_find_freq_floor(dev, &max_freq);
1185 	if (!IS_ERR(opp))
1186 		dev_pm_opp_put(opp);
1187 
1188 	dev_pm_opp_set_rate(dev, max_freq);
1189 
1190 	ret = msm_kms_init(&dpu_kms->base, &kms_funcs);
1191 	if (ret) {
1192 		DPU_ERROR("failed to init kms, ret=%d\n", ret);
1193 		return ret;
1194 	}
1195 	dpu_kms->dev = ddev;
1196 
1197 	pm_runtime_enable(&pdev->dev);
1198 	dpu_kms->rpm_enabled = true;
1199 
1200 	return 0;
1201 }
1202 
1203 static int dpu_kms_mmap_mdp5(struct dpu_kms *dpu_kms)
1204 {
1205 	struct platform_device *pdev = dpu_kms->pdev;
1206 	struct platform_device *mdss_dev;
1207 	int ret;
1208 
1209 	if (!dev_is_platform(dpu_kms->pdev->dev.parent))
1210 		return -EINVAL;
1211 
1212 	mdss_dev = to_platform_device(dpu_kms->pdev->dev.parent);
1213 
1214 	dpu_kms->mmio = msm_ioremap(pdev, "mdp_phys");
1215 	if (IS_ERR(dpu_kms->mmio)) {
1216 		ret = PTR_ERR(dpu_kms->mmio);
1217 		DPU_ERROR("mdp register memory map failed: %d\n", ret);
1218 		dpu_kms->mmio = NULL;
1219 		return ret;
1220 	}
1221 	DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);
1222 
1223 	dpu_kms->vbif[VBIF_RT] = msm_ioremap_mdss(mdss_dev,
1224 						  dpu_kms->pdev,
1225 						  "vbif_phys");
1226 	if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
1227 		ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]);
1228 		DPU_ERROR("vbif register memory map failed: %d\n", ret);
1229 		dpu_kms->vbif[VBIF_RT] = NULL;
1230 		return ret;
1231 	}
1232 
1233 	dpu_kms->vbif[VBIF_NRT] = msm_ioremap_mdss(mdss_dev,
1234 						   dpu_kms->pdev,
1235 						   "vbif_nrt_phys");
1236 	if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
1237 		dpu_kms->vbif[VBIF_NRT] = NULL;
1238 		DPU_DEBUG("VBIF NRT is not defined");
1239 	}
1240 
1241 	return 0;
1242 }
1243 
1244 static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms)
1245 {
1246 	struct platform_device *pdev = dpu_kms->pdev;
1247 	int ret;
1248 
1249 	dpu_kms->mmio = msm_ioremap(pdev, "mdp");
1250 	if (IS_ERR(dpu_kms->mmio)) {
1251 		ret = PTR_ERR(dpu_kms->mmio);
1252 		DPU_ERROR("mdp register memory map failed: %d\n", ret);
1253 		dpu_kms->mmio = NULL;
1254 		return ret;
1255 	}
1256 	DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);
1257 
1258 	dpu_kms->vbif[VBIF_RT] = msm_ioremap(pdev, "vbif");
1259 	if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
1260 		ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]);
1261 		DPU_ERROR("vbif register memory map failed: %d\n", ret);
1262 		dpu_kms->vbif[VBIF_RT] = NULL;
1263 		return ret;
1264 	}
1265 
1266 	dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(pdev, "vbif_nrt");
1267 	if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
1268 		dpu_kms->vbif[VBIF_NRT] = NULL;
1269 		DPU_DEBUG("VBIF NRT is not defined");
1270 	}
1271 
1272 	return 0;
1273 }
1274 
1275 static int dpu_dev_probe(struct platform_device *pdev)
1276 {
1277 	struct device *dev = &pdev->dev;
1278 	struct dpu_kms *dpu_kms;
1279 	int irq;
1280 	int ret = 0;
1281 
1282 	if (!msm_disp_drv_should_bind(&pdev->dev, true))
1283 		return -ENODEV;
1284 
1285 	dpu_kms = devm_kzalloc(dev, sizeof(*dpu_kms), GFP_KERNEL);
1286 	if (!dpu_kms)
1287 		return -ENOMEM;
1288 
1289 	dpu_kms->pdev = pdev;
1290 
1291 	ret = devm_pm_opp_set_clkname(dev, "core");
1292 	if (ret)
1293 		return ret;
1294 	/* OPP table is optional */
1295 	ret = devm_pm_opp_of_add_table(dev);
1296 	if (ret && ret != -ENODEV)
1297 		return dev_err_probe(dev, ret, "invalid OPP table in device tree\n");
1298 
1299 	ret = devm_clk_bulk_get_all(&pdev->dev, &dpu_kms->clocks);
1300 	if (ret < 0)
1301 		return dev_err_probe(dev, ret, "failed to parse clocks\n");
1302 
1303 	dpu_kms->num_clocks = ret;
1304 
1305 	irq = platform_get_irq(pdev, 0);
1306 	if (irq < 0)
1307 		return dev_err_probe(dev, irq, "failed to get irq\n");
1308 
1309 	dpu_kms->base.irq = irq;
1310 
1311 	if (of_device_is_compatible(dpu_kms->pdev->dev.of_node, "qcom,mdp5"))
1312 		ret = dpu_kms_mmap_mdp5(dpu_kms);
1313 	else
1314 		ret = dpu_kms_mmap_dpu(dpu_kms);
1315 	if (ret)
1316 		return ret;
1317 
1318 	ret = dpu_kms_parse_data_bus_icc_path(dpu_kms);
1319 	if (ret)
1320 		return ret;
1321 
1322 	return msm_drv_probe(&pdev->dev, dpu_kms_init, &dpu_kms->base);
1323 }
1324 
1325 static void dpu_dev_remove(struct platform_device *pdev)
1326 {
1327 	component_master_del(&pdev->dev, &msm_drm_ops);
1328 }
1329 
1330 static int __maybe_unused dpu_runtime_suspend(struct device *dev)
1331 {
1332 	int i;
1333 	struct platform_device *pdev = to_platform_device(dev);
1334 	struct msm_drm_private *priv = platform_get_drvdata(pdev);
1335 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1336 
1337 	/* Drop the performance state vote */
1338 	dev_pm_opp_set_rate(dev, 0);
1339 	clk_bulk_disable_unprepare(dpu_kms->num_clocks, dpu_kms->clocks);
1340 
1341 	for (i = 0; i < dpu_kms->num_paths; i++)
1342 		icc_set_bw(dpu_kms->path[i], 0, 0);
1343 
1344 	return 0;
1345 }
1346 
1347 static int __maybe_unused dpu_runtime_resume(struct device *dev)
1348 {
1349 	int rc = -1;
1350 	struct platform_device *pdev = to_platform_device(dev);
1351 	struct msm_drm_private *priv = platform_get_drvdata(pdev);
1352 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1353 	struct drm_encoder *encoder;
1354 	struct drm_device *ddev;
1355 
1356 	ddev = dpu_kms->dev;
1357 
1358 	rc = clk_bulk_prepare_enable(dpu_kms->num_clocks, dpu_kms->clocks);
1359 	if (rc) {
1360 		DPU_ERROR("clock enable failed rc:%d\n", rc);
1361 		return rc;
1362 	}
1363 
1364 	dpu_vbif_init_memtypes(dpu_kms);
1365 
1366 	drm_for_each_encoder(encoder, ddev)
1367 		dpu_encoder_virt_runtime_resume(encoder);
1368 
1369 	return rc;
1370 }
1371 
1372 static const struct dev_pm_ops dpu_pm_ops = {
1373 	SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
1374 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1375 				pm_runtime_force_resume)
1376 	.prepare = msm_kms_pm_prepare,
1377 	.complete = msm_kms_pm_complete,
1378 };
1379 
1380 static const struct of_device_id dpu_dt_match[] = {
1381 	{ .compatible = "qcom,msm8998-dpu", .data = &dpu_msm8998_cfg, },
1382 	{ .compatible = "qcom,qcm2290-dpu", .data = &dpu_qcm2290_cfg, },
1383 	{ .compatible = "qcom,sdm630-mdp5", .data = &dpu_sdm630_cfg, },
1384 	{ .compatible = "qcom,sdm660-mdp5", .data = &dpu_sdm660_cfg, },
1385 	{ .compatible = "qcom,sdm670-dpu", .data = &dpu_sdm670_cfg, },
1386 	{ .compatible = "qcom,sdm845-dpu", .data = &dpu_sdm845_cfg, },
1387 	{ .compatible = "qcom,sc7180-dpu", .data = &dpu_sc7180_cfg, },
1388 	{ .compatible = "qcom,sc7280-dpu", .data = &dpu_sc7280_cfg, },
1389 	{ .compatible = "qcom,sc8180x-dpu", .data = &dpu_sc8180x_cfg, },
1390 	{ .compatible = "qcom,sc8280xp-dpu", .data = &dpu_sc8280xp_cfg, },
1391 	{ .compatible = "qcom,sm6115-dpu", .data = &dpu_sm6115_cfg, },
1392 	{ .compatible = "qcom,sm6125-dpu", .data = &dpu_sm6125_cfg, },
1393 	{ .compatible = "qcom,sm6350-dpu", .data = &dpu_sm6350_cfg, },
1394 	{ .compatible = "qcom,sm6375-dpu", .data = &dpu_sm6375_cfg, },
1395 	{ .compatible = "qcom,sm8150-dpu", .data = &dpu_sm8150_cfg, },
1396 	{ .compatible = "qcom,sm8250-dpu", .data = &dpu_sm8250_cfg, },
1397 	{ .compatible = "qcom,sm8350-dpu", .data = &dpu_sm8350_cfg, },
1398 	{ .compatible = "qcom,sm8450-dpu", .data = &dpu_sm8450_cfg, },
1399 	{ .compatible = "qcom,sm8550-dpu", .data = &dpu_sm8550_cfg, },
1400 	{ .compatible = "qcom,sm8650-dpu", .data = &dpu_sm8650_cfg, },
1401 	{}
1402 };
1403 MODULE_DEVICE_TABLE(of, dpu_dt_match);
1404 
1405 static struct platform_driver dpu_driver = {
1406 	.probe = dpu_dev_probe,
1407 	.remove_new = dpu_dev_remove,
1408 	.shutdown = msm_kms_shutdown,
1409 	.driver = {
1410 		.name = "msm_dpu",
1411 		.of_match_table = dpu_dt_match,
1412 		.pm = &dpu_pm_ops,
1413 	},
1414 };
1415 
1416 void __init msm_dpu_register(void)
1417 {
1418 	platform_driver_register(&dpu_driver);
1419 }
1420 
1421 void __exit msm_dpu_unregister(void)
1422 {
1423 	platform_driver_unregister(&dpu_driver);
1424 }
1425