2 * Copyright (c) 2014-2018 The Linux Foundation. All rights reserved.
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
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.
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
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/>.
19 #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__
20 #include <linux/sort.h>
21 #include <linux/debugfs.h>
22 #include <linux/ktime.h>
23 #include <drm/drm_mode.h>
24 #include <drm/drm_crtc.h>
25 #include <drm/drm_crtc_helper.h>
26 #include <drm/drm_flip_work.h>
27 #include <drm/drm_rect.h>
30 #include "dpu_hw_lm.h"
31 #include "dpu_hw_ctl.h"
33 #include "dpu_plane.h"
34 #include "dpu_encoder.h"
36 #include "dpu_power_handle.h"
37 #include "dpu_core_perf.h"
38 #include "dpu_trace.h"
40 #define DPU_DRM_BLEND_OP_NOT_DEFINED 0
41 #define DPU_DRM_BLEND_OP_OPAQUE 1
42 #define DPU_DRM_BLEND_OP_PREMULTIPLIED 2
43 #define DPU_DRM_BLEND_OP_COVERAGE 3
44 #define DPU_DRM_BLEND_OP_MAX 4
46 /* layer mixer index on dpu_crtc */
50 #define MISR_BUFF_SIZE 256
52 static inline struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc)
54 struct msm_drm_private *priv;
56 if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
57 DPU_ERROR("invalid crtc\n");
60 priv = crtc->dev->dev_private;
61 if (!priv || !priv->kms) {
62 DPU_ERROR("invalid kms\n");
66 return to_dpu_kms(priv->kms);
69 static inline int _dpu_crtc_power_enable(struct dpu_crtc *dpu_crtc, bool enable)
71 struct drm_crtc *crtc;
72 struct msm_drm_private *priv;
73 struct dpu_kms *dpu_kms;
76 DPU_ERROR("invalid dpu crtc\n");
80 crtc = &dpu_crtc->base;
81 if (!crtc->dev || !crtc->dev->dev_private) {
82 DPU_ERROR("invalid drm device\n");
86 priv = crtc->dev->dev_private;
88 DPU_ERROR("invalid kms\n");
92 dpu_kms = to_dpu_kms(priv->kms);
95 pm_runtime_get_sync(&dpu_kms->pdev->dev);
97 pm_runtime_put_sync(&dpu_kms->pdev->dev);
103 * _dpu_crtc_rp_to_crtc - get crtc from resource pool object
104 * @rp: Pointer to resource pool
105 * return: Pointer to drm crtc if success; null otherwise
107 static struct drm_crtc *_dpu_crtc_rp_to_crtc(struct dpu_crtc_respool *rp)
112 return container_of(rp, struct dpu_crtc_state, rp)->base.crtc;
116 * _dpu_crtc_rp_reclaim - reclaim unused, or all if forced, resources in pool
117 * @rp: Pointer to resource pool
118 * @force: True to reclaim all resources; otherwise, reclaim only unused ones
121 static void _dpu_crtc_rp_reclaim(struct dpu_crtc_respool *rp, bool force)
123 struct dpu_crtc_res *res, *next;
124 struct drm_crtc *crtc;
126 crtc = _dpu_crtc_rp_to_crtc(rp);
128 DPU_ERROR("invalid crtc\n");
132 DPU_DEBUG("crtc%d.%u %s\n", crtc->base.id, rp->sequence_id,
133 force ? "destroy" : "free_unused");
135 list_for_each_entry_safe(res, next, &rp->res_list, list) {
136 if (!force && !(res->flags & DPU_CRTC_RES_FLAG_FREE))
138 DPU_DEBUG("crtc%d.%u reclaim res:0x%x/0x%llx/%pK/%d\n",
139 crtc->base.id, rp->sequence_id,
140 res->type, res->tag, res->val,
141 atomic_read(&res->refcount));
142 list_del(&res->list);
144 res->ops.put(res->val);
150 * _dpu_crtc_rp_free_unused - free unused resource in pool
151 * @rp: Pointer to resource pool
154 static void _dpu_crtc_rp_free_unused(struct dpu_crtc_respool *rp)
156 mutex_lock(rp->rp_lock);
157 _dpu_crtc_rp_reclaim(rp, false);
158 mutex_unlock(rp->rp_lock);
162 * _dpu_crtc_rp_destroy - destroy resource pool
163 * @rp: Pointer to resource pool
166 static void _dpu_crtc_rp_destroy(struct dpu_crtc_respool *rp)
168 mutex_lock(rp->rp_lock);
169 list_del_init(&rp->rp_list);
170 _dpu_crtc_rp_reclaim(rp, true);
171 mutex_unlock(rp->rp_lock);
175 * _dpu_crtc_hw_blk_get - get callback for hardware block
176 * @val: Resource handle
177 * @type: Resource type
178 * @tag: Search tag for given resource
179 * return: Resource handle
181 static void *_dpu_crtc_hw_blk_get(void *val, u32 type, u64 tag)
183 DPU_DEBUG("res:%d/0x%llx/%pK\n", type, tag, val);
184 return dpu_hw_blk_get(val, type, tag);
188 * _dpu_crtc_hw_blk_put - put callback for hardware block
189 * @val: Resource handle
192 static void _dpu_crtc_hw_blk_put(void *val)
194 DPU_DEBUG("res://%pK\n", val);
199 * _dpu_crtc_rp_duplicate - duplicate resource pool and reset reference count
200 * @rp: Pointer to original resource pool
201 * @dup_rp: Pointer to duplicated resource pool
204 static void _dpu_crtc_rp_duplicate(struct dpu_crtc_respool *rp,
205 struct dpu_crtc_respool *dup_rp)
207 struct dpu_crtc_res *res, *dup_res;
208 struct drm_crtc *crtc;
210 if (!rp || !dup_rp || !rp->rp_head) {
211 DPU_ERROR("invalid resource pool\n");
215 crtc = _dpu_crtc_rp_to_crtc(rp);
217 DPU_ERROR("invalid crtc\n");
221 DPU_DEBUG("crtc%d.%u duplicate\n", crtc->base.id, rp->sequence_id);
223 mutex_lock(rp->rp_lock);
224 dup_rp->sequence_id = rp->sequence_id + 1;
225 INIT_LIST_HEAD(&dup_rp->res_list);
226 dup_rp->ops = rp->ops;
227 list_for_each_entry(res, &rp->res_list, list) {
228 dup_res = kzalloc(sizeof(struct dpu_crtc_res), GFP_KERNEL);
230 mutex_unlock(rp->rp_lock);
233 INIT_LIST_HEAD(&dup_res->list);
234 atomic_set(&dup_res->refcount, 0);
235 dup_res->type = res->type;
236 dup_res->tag = res->tag;
237 dup_res->val = res->val;
238 dup_res->ops = res->ops;
239 dup_res->flags = DPU_CRTC_RES_FLAG_FREE;
240 DPU_DEBUG("crtc%d.%u dup res:0x%x/0x%llx/%pK/%d\n",
241 crtc->base.id, dup_rp->sequence_id,
242 dup_res->type, dup_res->tag, dup_res->val,
243 atomic_read(&dup_res->refcount));
244 list_add_tail(&dup_res->list, &dup_rp->res_list);
245 if (dup_res->ops.get)
246 dup_res->ops.get(dup_res->val, 0, -1);
249 dup_rp->rp_lock = rp->rp_lock;
250 dup_rp->rp_head = rp->rp_head;
251 INIT_LIST_HEAD(&dup_rp->rp_list);
252 list_add_tail(&dup_rp->rp_list, rp->rp_head);
253 mutex_unlock(rp->rp_lock);
257 * _dpu_crtc_rp_reset - reset resource pool after allocation
258 * @rp: Pointer to original resource pool
259 * @rp_lock: Pointer to serialization resource pool lock
260 * @rp_head: Pointer to crtc resource pool head
263 static void _dpu_crtc_rp_reset(struct dpu_crtc_respool *rp,
264 struct mutex *rp_lock, struct list_head *rp_head)
266 if (!rp || !rp_lock || !rp_head) {
267 DPU_ERROR("invalid resource pool\n");
272 rp->rp_lock = rp_lock;
273 rp->rp_head = rp_head;
274 INIT_LIST_HEAD(&rp->rp_list);
276 INIT_LIST_HEAD(&rp->res_list);
277 rp->ops.get = _dpu_crtc_hw_blk_get;
278 rp->ops.put = _dpu_crtc_hw_blk_put;
279 list_add_tail(&rp->rp_list, rp->rp_head);
280 mutex_unlock(rp_lock);
283 static void dpu_crtc_destroy(struct drm_crtc *crtc)
285 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
292 dpu_crtc->phandle = NULL;
294 drm_crtc_cleanup(crtc);
295 mutex_destroy(&dpu_crtc->crtc_lock);
299 static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer,
300 struct dpu_plane_state *pstate)
302 struct dpu_hw_mixer *lm = mixer->hw_lm;
304 /* default to opaque blending */
305 lm->ops.setup_blend_config(lm, pstate->stage, 0XFF, 0,
306 DPU_BLEND_FG_ALPHA_FG_CONST |
307 DPU_BLEND_BG_ALPHA_BG_CONST);
310 static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc)
312 struct dpu_crtc *dpu_crtc;
313 struct dpu_crtc_state *crtc_state;
314 int lm_idx, lm_horiz_position;
316 dpu_crtc = to_dpu_crtc(crtc);
317 crtc_state = to_dpu_crtc_state(crtc->state);
319 lm_horiz_position = 0;
320 for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
321 const struct drm_rect *lm_roi = &crtc_state->lm_bounds[lm_idx];
322 struct dpu_hw_mixer *hw_lm = dpu_crtc->mixers[lm_idx].hw_lm;
323 struct dpu_hw_mixer_cfg cfg;
325 if (!lm_roi || !drm_rect_visible(lm_roi))
328 cfg.out_width = drm_rect_width(lm_roi);
329 cfg.out_height = drm_rect_height(lm_roi);
330 cfg.right_mixer = lm_horiz_position++;
332 hw_lm->ops.setup_mixer_out(hw_lm, &cfg);
336 static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
337 struct dpu_crtc *dpu_crtc, struct dpu_crtc_mixer *mixer)
339 struct drm_plane *plane;
340 struct drm_framebuffer *fb;
341 struct drm_plane_state *state;
342 struct dpu_crtc_state *cstate;
343 struct dpu_plane_state *pstate = NULL;
344 struct dpu_format *format;
345 struct dpu_hw_ctl *ctl;
346 struct dpu_hw_mixer *lm;
347 struct dpu_hw_stage_cfg *stage_cfg;
350 uint32_t stage_idx, lm_idx;
351 int zpos_cnt[DPU_STAGE_MAX + 1] = { 0 };
352 bool bg_alpha_enable = false;
354 if (!dpu_crtc || !mixer) {
355 DPU_ERROR("invalid dpu_crtc or mixer\n");
361 stage_cfg = &dpu_crtc->stage_cfg;
362 cstate = to_dpu_crtc_state(crtc->state);
364 drm_atomic_crtc_for_each_plane(plane, crtc) {
365 state = plane->state;
369 pstate = to_dpu_plane_state(state);
372 dpu_plane_get_ctl_flush(plane, ctl, &flush_mask);
374 DPU_DEBUG("crtc %d stage:%d - plane %d sspp %d fb %d\n",
378 dpu_plane_pipe(plane) - SSPP_VIG0,
379 state->fb ? state->fb->base.id : -1);
381 format = to_dpu_format(msm_framebuffer_format(pstate->base.fb));
383 DPU_ERROR("invalid format\n");
387 if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable)
388 bg_alpha_enable = true;
390 stage_idx = zpos_cnt[pstate->stage]++;
391 stage_cfg->stage[pstate->stage][stage_idx] =
392 dpu_plane_pipe(plane);
393 stage_cfg->multirect_index[pstate->stage][stage_idx] =
394 pstate->multirect_index;
396 trace_dpu_crtc_setup_mixer(DRMID(crtc), DRMID(plane),
397 state, pstate, stage_idx,
398 dpu_plane_pipe(plane) - SSPP_VIG0,
399 format->base.pixel_format,
400 fb ? fb->modifier : 0);
402 /* blend config update */
403 for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
404 _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate);
406 mixer[lm_idx].flush_mask |= flush_mask;
408 if (bg_alpha_enable && !format->alpha_enable)
409 mixer[lm_idx].mixer_op_mode = 0;
411 mixer[lm_idx].mixer_op_mode |=
416 _dpu_crtc_program_lm_output_roi(crtc);
420 * _dpu_crtc_blend_setup - configure crtc mixers
421 * @crtc: Pointer to drm crtc structure
423 static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
425 struct dpu_crtc *dpu_crtc;
426 struct dpu_crtc_state *dpu_crtc_state;
427 struct dpu_crtc_mixer *mixer;
428 struct dpu_hw_ctl *ctl;
429 struct dpu_hw_mixer *lm;
436 dpu_crtc = to_dpu_crtc(crtc);
437 dpu_crtc_state = to_dpu_crtc_state(crtc->state);
438 mixer = dpu_crtc->mixers;
440 DPU_DEBUG("%s\n", dpu_crtc->name);
442 if (dpu_crtc->num_mixers > CRTC_DUAL_MIXERS) {
443 DPU_ERROR("invalid number mixers: %d\n", dpu_crtc->num_mixers);
447 for (i = 0; i < dpu_crtc->num_mixers; i++) {
448 if (!mixer[i].hw_lm || !mixer[i].hw_ctl) {
449 DPU_ERROR("invalid lm or ctl assigned to mixer\n");
452 mixer[i].mixer_op_mode = 0;
453 mixer[i].flush_mask = 0;
454 if (mixer[i].hw_ctl->ops.clear_all_blendstages)
455 mixer[i].hw_ctl->ops.clear_all_blendstages(
459 /* initialize stage cfg */
460 memset(&dpu_crtc->stage_cfg, 0, sizeof(struct dpu_hw_stage_cfg));
462 _dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer);
464 for (i = 0; i < dpu_crtc->num_mixers; i++) {
465 ctl = mixer[i].hw_ctl;
468 lm->ops.setup_alpha_out(lm, mixer[i].mixer_op_mode);
470 mixer[i].flush_mask |= ctl->ops.get_bitmask_mixer(ctl,
471 mixer[i].hw_lm->idx);
473 /* stage config flush mask */
474 ctl->ops.update_pending_flush(ctl, mixer[i].flush_mask);
476 DPU_DEBUG("lm %d, op_mode 0x%X, ctl %d, flush mask 0x%x\n",
477 mixer[i].hw_lm->idx - LM_0,
478 mixer[i].mixer_op_mode,
480 mixer[i].flush_mask);
482 ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx,
483 &dpu_crtc->stage_cfg);
488 * _dpu_crtc_complete_flip - signal pending page_flip events
489 * Any pending vblank events are added to the vblank_event_list
490 * so that the next vblank interrupt shall signal them.
491 * However PAGE_FLIP events are not handled through the vblank_event_list.
492 * This API signals any pending PAGE_FLIP events requested through
493 * DRM_IOCTL_MODE_PAGE_FLIP and are cached in the dpu_crtc->event.
494 * @crtc: Pointer to drm crtc structure
496 static void _dpu_crtc_complete_flip(struct drm_crtc *crtc)
498 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
499 struct drm_device *dev = crtc->dev;
502 spin_lock_irqsave(&dev->event_lock, flags);
503 if (dpu_crtc->event) {
504 DRM_DEBUG_VBL("%s: send event: %pK\n", dpu_crtc->name,
506 trace_dpu_crtc_complete_flip(DRMID(crtc));
507 drm_crtc_send_vblank_event(crtc, dpu_crtc->event);
508 dpu_crtc->event = NULL;
510 spin_unlock_irqrestore(&dev->event_lock, flags);
513 enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc)
515 struct drm_encoder *encoder;
517 if (!crtc || !crtc->dev) {
518 DPU_ERROR("invalid crtc\n");
519 return INTF_MODE_NONE;
522 drm_for_each_encoder(encoder, crtc->dev)
523 if (encoder->crtc == crtc)
524 return dpu_encoder_get_intf_mode(encoder);
526 return INTF_MODE_NONE;
529 static void dpu_crtc_vblank_cb(void *data)
531 struct drm_crtc *crtc = (struct drm_crtc *)data;
532 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
534 /* keep statistics on vblank callback - with auto reset via debugfs */
535 if (ktime_compare(dpu_crtc->vblank_cb_time, ktime_set(0, 0)) == 0)
536 dpu_crtc->vblank_cb_time = ktime_get();
538 dpu_crtc->vblank_cb_count++;
539 _dpu_crtc_complete_flip(crtc);
540 drm_crtc_handle_vblank(crtc);
541 trace_dpu_crtc_vblank_cb(DRMID(crtc));
544 static void dpu_crtc_frame_event_work(struct kthread_work *work)
546 struct msm_drm_private *priv;
547 struct dpu_crtc_frame_event *fevent;
548 struct drm_crtc *crtc;
549 struct dpu_crtc *dpu_crtc;
550 struct dpu_kms *dpu_kms;
552 bool frame_done = false;
555 DPU_ERROR("invalid work handle\n");
559 fevent = container_of(work, struct dpu_crtc_frame_event, work);
560 if (!fevent->crtc || !fevent->crtc->state) {
561 DPU_ERROR("invalid crtc\n");
566 dpu_crtc = to_dpu_crtc(crtc);
568 dpu_kms = _dpu_crtc_get_kms(crtc);
570 DPU_ERROR("invalid kms handle\n");
573 priv = dpu_kms->dev->dev_private;
574 DPU_ATRACE_BEGIN("crtc_frame_event");
576 DRM_DEBUG_KMS("crtc%d event:%u ts:%lld\n", crtc->base.id, fevent->event,
577 ktime_to_ns(fevent->ts));
579 if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE
580 | DPU_ENCODER_FRAME_EVENT_ERROR
581 | DPU_ENCODER_FRAME_EVENT_PANEL_DEAD)) {
583 if (atomic_read(&dpu_crtc->frame_pending) < 1) {
584 /* this should not happen */
585 DRM_ERROR("crtc%d ev:%u ts:%lld frame_pending:%d\n",
588 ktime_to_ns(fevent->ts),
589 atomic_read(&dpu_crtc->frame_pending));
590 } else if (atomic_dec_return(&dpu_crtc->frame_pending) == 0) {
591 /* release bandwidth and other resources */
592 trace_dpu_crtc_frame_event_done(DRMID(crtc),
594 dpu_core_perf_crtc_release_bw(crtc);
596 trace_dpu_crtc_frame_event_more_pending(DRMID(crtc),
600 if (fevent->event & DPU_ENCODER_FRAME_EVENT_DONE)
601 dpu_core_perf_crtc_update(crtc, 0, false);
603 if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE
604 | DPU_ENCODER_FRAME_EVENT_ERROR))
608 if (fevent->event & DPU_ENCODER_FRAME_EVENT_PANEL_DEAD)
609 DPU_ERROR("crtc%d ts:%lld received panel dead event\n",
610 crtc->base.id, ktime_to_ns(fevent->ts));
613 complete_all(&dpu_crtc->frame_done_comp);
615 spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
616 list_add_tail(&fevent->list, &dpu_crtc->frame_event_list);
617 spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
618 DPU_ATRACE_END("crtc_frame_event");
622 * dpu_crtc_frame_event_cb - crtc frame event callback API. CRTC module
623 * registers this API to encoder for all frame event callbacks like
624 * frame_error, frame_done, idle_timeout, etc. Encoder may call different events
625 * from different context - IRQ, user thread, commit_thread, etc. Each event
626 * should be carefully reviewed and should be processed in proper task context
627 * to avoid schedulin delay or properly manage the irq context's bottom half
630 static void dpu_crtc_frame_event_cb(void *data, u32 event)
632 struct drm_crtc *crtc = (struct drm_crtc *)data;
633 struct dpu_crtc *dpu_crtc;
634 struct msm_drm_private *priv;
635 struct dpu_crtc_frame_event *fevent;
639 if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
640 DPU_ERROR("invalid parameters\n");
644 /* Nothing to do on idle event */
645 if (event & DPU_ENCODER_FRAME_EVENT_IDLE)
648 dpu_crtc = to_dpu_crtc(crtc);
649 priv = crtc->dev->dev_private;
650 crtc_id = drm_crtc_index(crtc);
652 trace_dpu_crtc_frame_event_cb(DRMID(crtc), event);
654 spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
655 fevent = list_first_entry_or_null(&dpu_crtc->frame_event_list,
656 struct dpu_crtc_frame_event, list);
658 list_del_init(&fevent->list);
659 spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
662 DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event);
666 fevent->event = event;
668 fevent->ts = ktime_get();
669 kthread_queue_work(&priv->event_thread[crtc_id].worker, &fevent->work);
672 void dpu_crtc_complete_commit(struct drm_crtc *crtc,
673 struct drm_crtc_state *old_state)
675 if (!crtc || !crtc->state) {
676 DPU_ERROR("invalid crtc\n");
679 trace_dpu_crtc_complete_commit(DRMID(crtc));
682 static void _dpu_crtc_setup_mixer_for_encoder(
683 struct drm_crtc *crtc,
684 struct drm_encoder *enc)
686 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
687 struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
688 struct dpu_rm *rm = &dpu_kms->rm;
689 struct dpu_crtc_mixer *mixer;
690 struct dpu_hw_ctl *last_valid_ctl = NULL;
692 struct dpu_rm_hw_iter lm_iter, ctl_iter;
694 dpu_rm_init_hw_iter(&lm_iter, enc->base.id, DPU_HW_BLK_LM);
695 dpu_rm_init_hw_iter(&ctl_iter, enc->base.id, DPU_HW_BLK_CTL);
697 /* Set up all the mixers and ctls reserved by this encoder */
698 for (i = dpu_crtc->num_mixers; i < ARRAY_SIZE(dpu_crtc->mixers); i++) {
699 mixer = &dpu_crtc->mixers[i];
701 if (!dpu_rm_get_hw(rm, &lm_iter))
703 mixer->hw_lm = (struct dpu_hw_mixer *)lm_iter.hw;
705 /* CTL may be <= LMs, if <, multiple LMs controlled by 1 CTL */
706 if (!dpu_rm_get_hw(rm, &ctl_iter)) {
707 DPU_DEBUG("no ctl assigned to lm %d, using previous\n",
708 mixer->hw_lm->idx - LM_0);
709 mixer->hw_ctl = last_valid_ctl;
711 mixer->hw_ctl = (struct dpu_hw_ctl *)ctl_iter.hw;
712 last_valid_ctl = mixer->hw_ctl;
715 /* Shouldn't happen, mixers are always >= ctls */
716 if (!mixer->hw_ctl) {
717 DPU_ERROR("no valid ctls found for lm %d\n",
718 mixer->hw_lm->idx - LM_0);
722 mixer->encoder = enc;
724 dpu_crtc->num_mixers++;
725 DPU_DEBUG("setup mixer %d: lm %d\n",
726 i, mixer->hw_lm->idx - LM_0);
727 DPU_DEBUG("setup mixer %d: ctl %d\n",
728 i, mixer->hw_ctl->idx - CTL_0);
732 static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc)
734 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
735 struct drm_encoder *enc;
737 dpu_crtc->num_mixers = 0;
738 dpu_crtc->mixers_swapped = false;
739 memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
741 mutex_lock(&dpu_crtc->crtc_lock);
742 /* Check for mixers on all encoders attached to this crtc */
743 list_for_each_entry(enc, &crtc->dev->mode_config.encoder_list, head) {
744 if (enc->crtc != crtc)
747 _dpu_crtc_setup_mixer_for_encoder(crtc, enc);
750 mutex_unlock(&dpu_crtc->crtc_lock);
753 static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
754 struct drm_crtc_state *state)
756 struct dpu_crtc *dpu_crtc;
757 struct dpu_crtc_state *cstate;
758 struct drm_display_mode *adj_mode;
759 u32 crtc_split_width;
762 if (!crtc || !state) {
763 DPU_ERROR("invalid args\n");
767 dpu_crtc = to_dpu_crtc(crtc);
768 cstate = to_dpu_crtc_state(state);
770 adj_mode = &state->adjusted_mode;
771 crtc_split_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, adj_mode);
773 for (i = 0; i < dpu_crtc->num_mixers; i++) {
774 struct drm_rect *r = &cstate->lm_bounds[i];
775 r->x1 = crtc_split_width * i;
777 r->x2 = r->x1 + crtc_split_width;
778 r->y2 = dpu_crtc_get_mixer_height(dpu_crtc, cstate, adj_mode);
780 trace_dpu_crtc_setup_lm_bounds(DRMID(crtc), i, r);
783 drm_mode_debug_printmodeline(adj_mode);
786 static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
787 struct drm_crtc_state *old_state)
789 struct dpu_crtc *dpu_crtc;
790 struct drm_encoder *encoder;
791 struct drm_device *dev;
793 struct dpu_crtc_smmu_state_data *smmu_state;
796 DPU_ERROR("invalid crtc\n");
800 if (!crtc->state->enable) {
801 DPU_DEBUG("crtc%d -> enable %d, skip atomic_begin\n",
802 crtc->base.id, crtc->state->enable);
806 DPU_DEBUG("crtc%d\n", crtc->base.id);
808 dpu_crtc = to_dpu_crtc(crtc);
810 smmu_state = &dpu_crtc->smmu_state;
812 if (!dpu_crtc->num_mixers) {
813 _dpu_crtc_setup_mixers(crtc);
814 _dpu_crtc_setup_lm_bounds(crtc, crtc->state);
817 if (dpu_crtc->event) {
818 WARN_ON(dpu_crtc->event);
820 spin_lock_irqsave(&dev->event_lock, flags);
821 dpu_crtc->event = crtc->state->event;
822 crtc->state->event = NULL;
823 spin_unlock_irqrestore(&dev->event_lock, flags);
826 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
827 if (encoder->crtc != crtc)
830 /* encoder will trigger pending mask now */
831 dpu_encoder_trigger_kickoff_pending(encoder);
835 * If no mixers have been allocated in dpu_crtc_atomic_check(),
836 * it means we are trying to flush a CRTC whose state is disabled:
837 * nothing else needs to be done.
839 if (unlikely(!dpu_crtc->num_mixers))
842 _dpu_crtc_blend_setup(crtc);
845 * PP_DONE irq is only used by command mode for now.
846 * It is better to request pending before FLUSH and START trigger
847 * to make sure no pp_done irq missed.
848 * This is safe because no pp_done will happen before SW trigger
853 static void dpu_crtc_atomic_flush(struct drm_crtc *crtc,
854 struct drm_crtc_state *old_crtc_state)
856 struct dpu_crtc *dpu_crtc;
857 struct drm_device *dev;
858 struct drm_plane *plane;
859 struct msm_drm_private *priv;
860 struct msm_drm_thread *event_thread;
862 struct dpu_crtc_state *cstate;
864 if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
865 DPU_ERROR("invalid crtc\n");
869 if (!crtc->state->enable) {
870 DPU_DEBUG("crtc%d -> enable %d, skip atomic_flush\n",
871 crtc->base.id, crtc->state->enable);
875 DPU_DEBUG("crtc%d\n", crtc->base.id);
877 dpu_crtc = to_dpu_crtc(crtc);
878 cstate = to_dpu_crtc_state(crtc->state);
880 priv = dev->dev_private;
882 if (crtc->index >= ARRAY_SIZE(priv->event_thread)) {
883 DPU_ERROR("invalid crtc index[%d]\n", crtc->index);
887 event_thread = &priv->event_thread[crtc->index];
889 if (dpu_crtc->event) {
890 DPU_DEBUG("already received dpu_crtc->event\n");
892 spin_lock_irqsave(&dev->event_lock, flags);
893 dpu_crtc->event = crtc->state->event;
894 crtc->state->event = NULL;
895 spin_unlock_irqrestore(&dev->event_lock, flags);
899 * If no mixers has been allocated in dpu_crtc_atomic_check(),
900 * it means we are trying to flush a CRTC whose state is disabled:
901 * nothing else needs to be done.
903 if (unlikely(!dpu_crtc->num_mixers))
907 * For planes without commit update, drm framework will not add
908 * those planes to current state since hardware update is not
909 * required. However, if those planes were power collapsed since
910 * last commit cycle, driver has to restore the hardware state
911 * of those planes explicitly here prior to plane flush.
913 drm_atomic_crtc_for_each_plane(plane, crtc)
914 dpu_plane_restore(plane);
916 /* update performance setting before crtc kickoff */
917 dpu_core_perf_crtc_update(crtc, 1, false);
920 * Final plane updates: Give each plane a chance to complete all
921 * required writes/flushing before crtc's "flush
922 * everything" call below.
924 drm_atomic_crtc_for_each_plane(plane, crtc) {
925 if (dpu_crtc->smmu_state.transition_error)
926 dpu_plane_set_error(plane, true);
927 dpu_plane_flush(plane);
930 /* Kickoff will be scheduled by outer layer */
934 * dpu_crtc_destroy_state - state destroy hook
936 * @state: CRTC state object to release
938 static void dpu_crtc_destroy_state(struct drm_crtc *crtc,
939 struct drm_crtc_state *state)
941 struct dpu_crtc *dpu_crtc;
942 struct dpu_crtc_state *cstate;
944 if (!crtc || !state) {
945 DPU_ERROR("invalid argument(s)\n");
949 dpu_crtc = to_dpu_crtc(crtc);
950 cstate = to_dpu_crtc_state(state);
952 DPU_DEBUG("crtc%d\n", crtc->base.id);
954 _dpu_crtc_rp_destroy(&cstate->rp);
956 __drm_atomic_helper_crtc_destroy_state(state);
961 static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc)
963 struct dpu_crtc *dpu_crtc;
967 DPU_ERROR("invalid argument\n");
970 dpu_crtc = to_dpu_crtc(crtc);
972 if (!atomic_read(&dpu_crtc->frame_pending)) {
973 DPU_DEBUG("no frames pending\n");
977 DPU_ATRACE_BEGIN("frame done completion wait");
978 ret = wait_for_completion_timeout(&dpu_crtc->frame_done_comp,
979 msecs_to_jiffies(DPU_FRAME_DONE_TIMEOUT));
981 DRM_ERROR("frame done wait timed out, ret:%d\n", ret);
984 DPU_ATRACE_END("frame done completion wait");
989 void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)
991 struct drm_encoder *encoder;
992 struct drm_device *dev;
993 struct dpu_crtc *dpu_crtc;
994 struct msm_drm_private *priv;
995 struct dpu_kms *dpu_kms;
996 struct dpu_crtc_state *cstate;
1000 DPU_ERROR("invalid argument\n");
1004 dpu_crtc = to_dpu_crtc(crtc);
1005 dpu_kms = _dpu_crtc_get_kms(crtc);
1007 if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev_private) {
1008 DPU_ERROR("invalid argument\n");
1012 priv = dpu_kms->dev->dev_private;
1013 cstate = to_dpu_crtc_state(crtc->state);
1016 * If no mixers has been allocated in dpu_crtc_atomic_check(),
1017 * it means we are trying to start a CRTC whose state is disabled:
1018 * nothing else needs to be done.
1020 if (unlikely(!dpu_crtc->num_mixers))
1023 DPU_ATRACE_BEGIN("crtc_commit");
1025 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1026 struct dpu_encoder_kickoff_params params = { 0 };
1028 if (encoder->crtc != crtc)
1032 * Encoder will flush/start now, unless it has a tx pending.
1033 * If so, it may delay and flush at an irq event (e.g. ppdone)
1035 dpu_encoder_prepare_for_kickoff(encoder, ¶ms);
1038 /* wait for frame_event_done completion */
1039 DPU_ATRACE_BEGIN("wait_for_frame_done_event");
1040 ret = _dpu_crtc_wait_for_frame_done(crtc);
1041 DPU_ATRACE_END("wait_for_frame_done_event");
1043 DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n",
1045 atomic_read(&dpu_crtc->frame_pending));
1049 if (atomic_inc_return(&dpu_crtc->frame_pending) == 1) {
1050 /* acquire bandwidth and other resources */
1051 DPU_DEBUG("crtc%d first commit\n", crtc->base.id);
1053 DPU_DEBUG("crtc%d commit\n", crtc->base.id);
1055 dpu_crtc->play_count++;
1057 dpu_vbif_clear_errors(dpu_kms);
1059 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1060 if (encoder->crtc != crtc)
1063 dpu_encoder_kickoff(encoder);
1067 reinit_completion(&dpu_crtc->frame_done_comp);
1068 DPU_ATRACE_END("crtc_commit");
1072 * _dpu_crtc_vblank_enable_no_lock - update power resource and vblank request
1073 * @dpu_crtc: Pointer to dpu crtc structure
1074 * @enable: Whether to enable/disable vblanks
1076 * @Return: error code
1078 static int _dpu_crtc_vblank_enable_no_lock(
1079 struct dpu_crtc *dpu_crtc, bool enable)
1081 struct drm_device *dev;
1082 struct drm_crtc *crtc;
1083 struct drm_encoder *enc;
1086 DPU_ERROR("invalid crtc\n");
1090 crtc = &dpu_crtc->base;
1096 /* drop lock since power crtc cb may try to re-acquire lock */
1097 mutex_unlock(&dpu_crtc->crtc_lock);
1098 ret = _dpu_crtc_power_enable(dpu_crtc, true);
1099 mutex_lock(&dpu_crtc->crtc_lock);
1103 list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
1104 if (enc->crtc != crtc)
1107 trace_dpu_crtc_vblank_enable(DRMID(&dpu_crtc->base),
1111 dpu_encoder_register_vblank_callback(enc,
1112 dpu_crtc_vblank_cb, (void *)crtc);
1115 list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
1116 if (enc->crtc != crtc)
1119 trace_dpu_crtc_vblank_enable(DRMID(&dpu_crtc->base),
1123 dpu_encoder_register_vblank_callback(enc, NULL, NULL);
1126 /* drop lock since power crtc cb may try to re-acquire lock */
1127 mutex_unlock(&dpu_crtc->crtc_lock);
1128 _dpu_crtc_power_enable(dpu_crtc, false);
1129 mutex_lock(&dpu_crtc->crtc_lock);
1136 * _dpu_crtc_set_suspend - notify crtc of suspend enable/disable
1137 * @crtc: Pointer to drm crtc object
1138 * @enable: true to enable suspend, false to indicate resume
1140 static void _dpu_crtc_set_suspend(struct drm_crtc *crtc, bool enable)
1142 struct dpu_crtc *dpu_crtc;
1143 struct msm_drm_private *priv;
1144 struct dpu_kms *dpu_kms;
1147 if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
1148 DPU_ERROR("invalid crtc\n");
1151 dpu_crtc = to_dpu_crtc(crtc);
1152 priv = crtc->dev->dev_private;
1155 DPU_ERROR("invalid crtc kms\n");
1158 dpu_kms = to_dpu_kms(priv->kms);
1160 DRM_DEBUG_KMS("crtc%d suspend = %d\n", crtc->base.id, enable);
1162 mutex_lock(&dpu_crtc->crtc_lock);
1165 * If the vblank is enabled, release a power reference on suspend
1166 * and take it back during resume (if it is still enabled).
1168 trace_dpu_crtc_set_suspend(DRMID(&dpu_crtc->base), enable, dpu_crtc);
1169 if (dpu_crtc->suspend == enable)
1170 DPU_DEBUG("crtc%d suspend already set to %d, ignoring update\n",
1171 crtc->base.id, enable);
1172 else if (dpu_crtc->enabled && dpu_crtc->vblank_requested) {
1173 ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, !enable);
1175 DPU_ERROR("%s vblank enable failed: %d\n",
1176 dpu_crtc->name, ret);
1179 dpu_crtc->suspend = enable;
1180 mutex_unlock(&dpu_crtc->crtc_lock);
1184 * dpu_crtc_duplicate_state - state duplicate hook
1185 * @crtc: Pointer to drm crtc structure
1186 * @Returns: Pointer to new drm_crtc_state structure
1188 static struct drm_crtc_state *dpu_crtc_duplicate_state(struct drm_crtc *crtc)
1190 struct dpu_crtc *dpu_crtc;
1191 struct dpu_crtc_state *cstate, *old_cstate;
1193 if (!crtc || !crtc->state) {
1194 DPU_ERROR("invalid argument(s)\n");
1198 dpu_crtc = to_dpu_crtc(crtc);
1199 old_cstate = to_dpu_crtc_state(crtc->state);
1200 cstate = kmemdup(old_cstate, sizeof(*old_cstate), GFP_KERNEL);
1202 DPU_ERROR("failed to allocate state\n");
1206 /* duplicate base helper */
1207 __drm_atomic_helper_crtc_duplicate_state(crtc, &cstate->base);
1209 _dpu_crtc_rp_duplicate(&old_cstate->rp, &cstate->rp);
1211 return &cstate->base;
1215 * dpu_crtc_reset - reset hook for CRTCs
1216 * Resets the atomic state for @crtc by freeing the state pointer (which might
1217 * be NULL, e.g. at driver load time) and allocating a new empty state object.
1218 * @crtc: Pointer to drm crtc structure
1220 static void dpu_crtc_reset(struct drm_crtc *crtc)
1222 struct dpu_crtc *dpu_crtc;
1223 struct dpu_crtc_state *cstate;
1226 DPU_ERROR("invalid crtc\n");
1230 /* revert suspend actions, if necessary */
1231 if (dpu_kms_is_suspend_state(crtc->dev))
1232 _dpu_crtc_set_suspend(crtc, false);
1234 /* remove previous state, if present */
1236 dpu_crtc_destroy_state(crtc, crtc->state);
1240 dpu_crtc = to_dpu_crtc(crtc);
1241 cstate = kzalloc(sizeof(*cstate), GFP_KERNEL);
1243 DPU_ERROR("failed to allocate state\n");
1247 _dpu_crtc_rp_reset(&cstate->rp, &dpu_crtc->rp_lock,
1248 &dpu_crtc->rp_head);
1250 cstate->base.crtc = crtc;
1251 crtc->state = &cstate->base;
1254 static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
1256 struct drm_crtc *crtc = arg;
1257 struct dpu_crtc *dpu_crtc;
1258 struct drm_encoder *encoder;
1259 struct dpu_crtc_mixer *m;
1263 DPU_ERROR("invalid crtc\n");
1266 dpu_crtc = to_dpu_crtc(crtc);
1268 mutex_lock(&dpu_crtc->crtc_lock);
1270 trace_dpu_crtc_handle_power_event(DRMID(crtc), event_type);
1272 switch (event_type) {
1273 case DPU_POWER_EVENT_POST_ENABLE:
1274 /* restore encoder; crtc will be programmed during commit */
1275 drm_for_each_encoder(encoder, crtc->dev) {
1276 if (encoder->crtc != crtc)
1279 dpu_encoder_virt_restore(encoder);
1282 for (i = 0; i < dpu_crtc->num_mixers; ++i) {
1283 m = &dpu_crtc->mixers[i];
1284 if (!m->hw_lm || !m->hw_lm->ops.setup_misr ||
1285 !dpu_crtc->misr_enable)
1288 m->hw_lm->ops.setup_misr(m->hw_lm, true,
1289 dpu_crtc->misr_frame_count);
1292 case DPU_POWER_EVENT_PRE_DISABLE:
1293 for (i = 0; i < dpu_crtc->num_mixers; ++i) {
1294 m = &dpu_crtc->mixers[i];
1295 if (!m->hw_lm || !m->hw_lm->ops.collect_misr ||
1296 !dpu_crtc->misr_enable)
1299 misr_status = m->hw_lm->ops.collect_misr(m->hw_lm);
1300 dpu_crtc->misr_data[i] = misr_status ? misr_status :
1301 dpu_crtc->misr_data[i];
1304 case DPU_POWER_EVENT_POST_DISABLE:
1306 * Nothing to do. All the planes on the CRTC will be
1307 * programmed for every frame
1311 DPU_DEBUG("event:%d not handled\n", event_type);
1315 mutex_unlock(&dpu_crtc->crtc_lock);
1318 static void dpu_crtc_disable(struct drm_crtc *crtc)
1320 struct dpu_crtc *dpu_crtc;
1321 struct dpu_crtc_state *cstate;
1322 struct drm_display_mode *mode;
1323 struct drm_encoder *encoder;
1324 struct msm_drm_private *priv;
1326 unsigned long flags;
1328 if (!crtc || !crtc->dev || !crtc->dev->dev_private || !crtc->state) {
1329 DPU_ERROR("invalid crtc\n");
1332 dpu_crtc = to_dpu_crtc(crtc);
1333 cstate = to_dpu_crtc_state(crtc->state);
1334 mode = &cstate->base.adjusted_mode;
1335 priv = crtc->dev->dev_private;
1337 DRM_DEBUG_KMS("crtc%d\n", crtc->base.id);
1339 if (dpu_kms_is_suspend_state(crtc->dev))
1340 _dpu_crtc_set_suspend(crtc, true);
1342 /* Disable/save vblank irq handling */
1343 drm_crtc_vblank_off(crtc);
1345 mutex_lock(&dpu_crtc->crtc_lock);
1347 /* wait for frame_event_done completion */
1348 if (_dpu_crtc_wait_for_frame_done(crtc))
1349 DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n",
1351 atomic_read(&dpu_crtc->frame_pending));
1353 trace_dpu_crtc_disable(DRMID(crtc), false, dpu_crtc);
1354 if (dpu_crtc->enabled && !dpu_crtc->suspend &&
1355 dpu_crtc->vblank_requested) {
1356 ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, false);
1358 DPU_ERROR("%s vblank enable failed: %d\n",
1359 dpu_crtc->name, ret);
1361 dpu_crtc->enabled = false;
1363 if (atomic_read(&dpu_crtc->frame_pending)) {
1364 trace_dpu_crtc_disable_frame_pending(DRMID(crtc),
1365 atomic_read(&dpu_crtc->frame_pending));
1366 dpu_core_perf_crtc_release_bw(crtc);
1367 atomic_set(&dpu_crtc->frame_pending, 0);
1370 dpu_core_perf_crtc_update(crtc, 0, true);
1372 drm_for_each_encoder(encoder, crtc->dev) {
1373 if (encoder->crtc != crtc)
1375 dpu_encoder_register_frame_event_callback(encoder, NULL, NULL);
1378 if (dpu_crtc->power_event)
1379 dpu_power_handle_unregister_event(dpu_crtc->phandle,
1380 dpu_crtc->power_event);
1382 memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
1383 dpu_crtc->num_mixers = 0;
1384 dpu_crtc->mixers_swapped = false;
1386 /* disable clk & bw control until clk & bw properties are set */
1387 cstate->bw_control = false;
1388 cstate->bw_split_vote = false;
1390 mutex_unlock(&dpu_crtc->crtc_lock);
1392 if (crtc->state->event && !crtc->state->active) {
1393 spin_lock_irqsave(&crtc->dev->event_lock, flags);
1394 drm_crtc_send_vblank_event(crtc, crtc->state->event);
1395 crtc->state->event = NULL;
1396 spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
1400 static void dpu_crtc_enable(struct drm_crtc *crtc,
1401 struct drm_crtc_state *old_crtc_state)
1403 struct dpu_crtc *dpu_crtc;
1404 struct drm_encoder *encoder;
1405 struct msm_drm_private *priv;
1408 if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
1409 DPU_ERROR("invalid crtc\n");
1412 priv = crtc->dev->dev_private;
1414 DRM_DEBUG_KMS("crtc%d\n", crtc->base.id);
1415 dpu_crtc = to_dpu_crtc(crtc);
1417 drm_for_each_encoder(encoder, crtc->dev) {
1418 if (encoder->crtc != crtc)
1420 dpu_encoder_register_frame_event_callback(encoder,
1421 dpu_crtc_frame_event_cb, (void *)crtc);
1424 mutex_lock(&dpu_crtc->crtc_lock);
1425 trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc);
1426 if (!dpu_crtc->enabled && !dpu_crtc->suspend &&
1427 dpu_crtc->vblank_requested) {
1428 ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, true);
1430 DPU_ERROR("%s vblank enable failed: %d\n",
1431 dpu_crtc->name, ret);
1433 dpu_crtc->enabled = true;
1435 mutex_unlock(&dpu_crtc->crtc_lock);
1437 /* Enable/restore vblank irq handling */
1438 drm_crtc_vblank_on(crtc);
1440 dpu_crtc->power_event = dpu_power_handle_register_event(
1442 DPU_POWER_EVENT_POST_ENABLE | DPU_POWER_EVENT_POST_DISABLE |
1443 DPU_POWER_EVENT_PRE_DISABLE,
1444 dpu_crtc_handle_power_event, crtc, dpu_crtc->name);
1448 struct plane_state {
1449 struct dpu_plane_state *dpu_pstate;
1450 const struct drm_plane_state *drm_pstate;
1455 static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
1456 struct drm_crtc_state *state)
1458 struct dpu_crtc *dpu_crtc;
1459 struct plane_state *pstates;
1460 struct dpu_crtc_state *cstate;
1462 const struct drm_plane_state *pstate;
1463 struct drm_plane *plane;
1464 struct drm_display_mode *mode;
1466 int cnt = 0, rc = 0, mixer_width, i, z_pos;
1468 struct dpu_multirect_plane_states multirect_plane[DPU_STAGE_MAX * 2];
1469 int multirect_count = 0;
1470 const struct drm_plane_state *pipe_staged[SSPP_MAX];
1471 int left_zpos_cnt = 0, right_zpos_cnt = 0;
1472 struct drm_rect crtc_rect = { 0 };
1475 DPU_ERROR("invalid crtc\n");
1479 pstates = kzalloc(sizeof(*pstates) * DPU_STAGE_MAX * 4, GFP_KERNEL);
1481 dpu_crtc = to_dpu_crtc(crtc);
1482 cstate = to_dpu_crtc_state(state);
1484 if (!state->enable || !state->active) {
1485 DPU_DEBUG("crtc%d -> enable %d, active %d, skip atomic_check\n",
1486 crtc->base.id, state->enable, state->active);
1490 mode = &state->adjusted_mode;
1491 DPU_DEBUG("%s: check", dpu_crtc->name);
1493 /* force a full mode set if active state changed */
1494 if (state->active_changed)
1495 state->mode_changed = true;
1497 memset(pipe_staged, 0, sizeof(pipe_staged));
1499 mixer_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, mode);
1501 _dpu_crtc_setup_lm_bounds(crtc, state);
1503 crtc_rect.x2 = mode->hdisplay;
1504 crtc_rect.y2 = mode->vdisplay;
1506 /* get plane state for all drm planes associated with crtc state */
1507 drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
1508 struct drm_rect dst, clip = crtc_rect;
1510 if (IS_ERR_OR_NULL(pstate)) {
1511 rc = PTR_ERR(pstate);
1512 DPU_ERROR("%s: failed to get plane%d state, %d\n",
1513 dpu_crtc->name, plane->base.id, rc);
1516 if (cnt >= DPU_STAGE_MAX * 4)
1519 pstates[cnt].dpu_pstate = to_dpu_plane_state(pstate);
1520 pstates[cnt].drm_pstate = pstate;
1521 pstates[cnt].stage = pstate->normalized_zpos;
1522 pstates[cnt].pipe_id = dpu_plane_pipe(plane);
1524 if (pipe_staged[pstates[cnt].pipe_id]) {
1525 multirect_plane[multirect_count].r0 =
1526 pipe_staged[pstates[cnt].pipe_id];
1527 multirect_plane[multirect_count].r1 = pstate;
1530 pipe_staged[pstates[cnt].pipe_id] = NULL;
1532 pipe_staged[pstates[cnt].pipe_id] = pstate;
1537 dst = drm_plane_state_dest(pstate);
1538 if (!drm_rect_intersect(&clip, &dst)) {
1539 DPU_ERROR("invalid vertical/horizontal destination\n");
1540 DPU_ERROR("display: " DRM_RECT_FMT " plane: "
1541 DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect),
1542 DRM_RECT_ARG(&dst));
1548 for (i = 1; i < SSPP_MAX; i++) {
1549 if (pipe_staged[i]) {
1550 dpu_plane_clear_multirect(pipe_staged[i]);
1552 if (is_dpu_plane_virtual(pipe_staged[i]->plane)) {
1554 "r1 only virt plane:%d not supported\n",
1555 pipe_staged[i]->plane->base.id);
1563 for (i = 0; i < cnt; i++) {
1564 /* reset counts at every new blend stage */
1565 if (pstates[i].stage != z_pos) {
1568 z_pos = pstates[i].stage;
1571 /* verify z_pos setting before using it */
1572 if (z_pos >= DPU_STAGE_MAX - DPU_STAGE_0) {
1573 DPU_ERROR("> %d plane stages assigned\n",
1574 DPU_STAGE_MAX - DPU_STAGE_0);
1577 } else if (pstates[i].drm_pstate->crtc_x < mixer_width) {
1578 if (left_zpos_cnt == 2) {
1579 DPU_ERROR("> 2 planes @ stage %d on left\n",
1587 if (right_zpos_cnt == 2) {
1588 DPU_ERROR("> 2 planes @ stage %d on right\n",
1596 pstates[i].dpu_pstate->stage = z_pos + DPU_STAGE_0;
1597 DPU_DEBUG("%s: zpos %d", dpu_crtc->name, z_pos);
1600 for (i = 0; i < multirect_count; i++) {
1601 if (dpu_plane_validate_multirect_v2(&multirect_plane[i])) {
1603 "multirect validation failed for planes (%d - %d)\n",
1604 multirect_plane[i].r0->plane->base.id,
1605 multirect_plane[i].r1->plane->base.id);
1611 rc = dpu_core_perf_crtc_check(crtc, state);
1613 DPU_ERROR("crtc%d failed performance check %d\n",
1618 /* validate source split:
1619 * use pstates sorted by stage to check planes on same stage
1620 * we assume that all pipes are in source split so its valid to compare
1621 * without taking into account left/right mixer placement
1623 for (i = 1; i < cnt; i++) {
1624 struct plane_state *prv_pstate, *cur_pstate;
1625 struct drm_rect left_rect, right_rect;
1626 int32_t left_pid, right_pid;
1629 prv_pstate = &pstates[i - 1];
1630 cur_pstate = &pstates[i];
1631 if (prv_pstate->stage != cur_pstate->stage)
1634 stage = cur_pstate->stage;
1636 left_pid = prv_pstate->dpu_pstate->base.plane->base.id;
1637 left_rect = drm_plane_state_dest(prv_pstate->drm_pstate);
1639 right_pid = cur_pstate->dpu_pstate->base.plane->base.id;
1640 right_rect = drm_plane_state_dest(cur_pstate->drm_pstate);
1642 if (right_rect.x1 < left_rect.x1) {
1643 swap(left_pid, right_pid);
1644 swap(left_rect, right_rect);
1648 * - planes are enumerated in pipe-priority order such that
1649 * planes with lower drm_id must be left-most in a shared
1650 * blend-stage when using source split.
1651 * - planes in source split must be contiguous in width
1652 * - planes in source split must have same dest yoff and height
1654 if (right_pid < left_pid) {
1656 "invalid src split cfg. priority mismatch. stage: %d left: %d right: %d\n",
1657 stage, left_pid, right_pid);
1660 } else if (right_rect.x1 != drm_rect_width(&left_rect)) {
1661 DPU_ERROR("non-contiguous coordinates for src split. "
1662 "stage: %d left: " DRM_RECT_FMT " right: "
1663 DRM_RECT_FMT "\n", stage,
1664 DRM_RECT_ARG(&left_rect),
1665 DRM_RECT_ARG(&right_rect));
1668 } else if (left_rect.y1 != right_rect.y1 ||
1669 drm_rect_height(&left_rect) != drm_rect_height(&right_rect)) {
1670 DPU_ERROR("source split at stage: %d. invalid "
1671 "yoff/height: left: " DRM_RECT_FMT " right: "
1672 DRM_RECT_FMT "\n", stage,
1673 DRM_RECT_ARG(&left_rect),
1674 DRM_RECT_ARG(&right_rect));
1681 _dpu_crtc_rp_free_unused(&cstate->rp);
1686 int dpu_crtc_vblank(struct drm_crtc *crtc, bool en)
1688 struct dpu_crtc *dpu_crtc;
1692 DPU_ERROR("invalid crtc\n");
1695 dpu_crtc = to_dpu_crtc(crtc);
1697 mutex_lock(&dpu_crtc->crtc_lock);
1698 trace_dpu_crtc_vblank(DRMID(&dpu_crtc->base), en, dpu_crtc);
1699 if (dpu_crtc->enabled && !dpu_crtc->suspend) {
1700 ret = _dpu_crtc_vblank_enable_no_lock(dpu_crtc, en);
1702 DPU_ERROR("%s vblank enable failed: %d\n",
1703 dpu_crtc->name, ret);
1705 dpu_crtc->vblank_requested = en;
1706 mutex_unlock(&dpu_crtc->crtc_lock);
1711 #ifdef CONFIG_DEBUG_FS
1712 static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
1714 struct dpu_crtc *dpu_crtc;
1715 struct dpu_plane_state *pstate = NULL;
1716 struct dpu_crtc_mixer *m;
1718 struct drm_crtc *crtc;
1719 struct drm_plane *plane;
1720 struct drm_display_mode *mode;
1721 struct drm_framebuffer *fb;
1722 struct drm_plane_state *state;
1723 struct dpu_crtc_state *cstate;
1727 if (!s || !s->private)
1730 dpu_crtc = s->private;
1731 crtc = &dpu_crtc->base;
1732 cstate = to_dpu_crtc_state(crtc->state);
1734 mutex_lock(&dpu_crtc->crtc_lock);
1735 mode = &crtc->state->adjusted_mode;
1736 out_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, mode);
1738 seq_printf(s, "crtc:%d width:%d height:%d\n", crtc->base.id,
1739 mode->hdisplay, mode->vdisplay);
1743 for (i = 0; i < dpu_crtc->num_mixers; ++i) {
1744 m = &dpu_crtc->mixers[i];
1746 seq_printf(s, "\tmixer[%d] has no lm\n", i);
1747 else if (!m->hw_ctl)
1748 seq_printf(s, "\tmixer[%d] has no ctl\n", i);
1750 seq_printf(s, "\tmixer:%d ctl:%d width:%d height:%d\n",
1751 m->hw_lm->idx - LM_0, m->hw_ctl->idx - CTL_0,
1752 out_width, mode->vdisplay);
1757 drm_atomic_crtc_for_each_plane(plane, crtc) {
1758 pstate = to_dpu_plane_state(plane->state);
1759 state = plane->state;
1761 if (!pstate || !state)
1764 seq_printf(s, "\tplane:%u stage:%d\n", plane->base.id,
1767 if (plane->state->fb) {
1768 fb = plane->state->fb;
1770 seq_printf(s, "\tfb:%d image format:%4.4s wxh:%ux%u ",
1771 fb->base.id, (char *) &fb->format->format,
1772 fb->width, fb->height);
1773 for (i = 0; i < ARRAY_SIZE(fb->format->cpp); ++i)
1774 seq_printf(s, "cpp[%d]:%u ",
1775 i, fb->format->cpp[i]);
1776 seq_puts(s, "\n\t");
1778 seq_printf(s, "modifier:%8llu ", fb->modifier);
1782 for (i = 0; i < ARRAY_SIZE(fb->pitches); i++)
1783 seq_printf(s, "pitches[%d]:%8u ", i,
1788 for (i = 0; i < ARRAY_SIZE(fb->offsets); i++)
1789 seq_printf(s, "offsets[%d]:%8u ", i,
1794 seq_printf(s, "\tsrc_x:%4d src_y:%4d src_w:%4d src_h:%4d\n",
1795 state->src_x, state->src_y, state->src_w, state->src_h);
1797 seq_printf(s, "\tdst x:%4d dst_y:%4d dst_w:%4d dst_h:%4d\n",
1798 state->crtc_x, state->crtc_y, state->crtc_w,
1800 seq_printf(s, "\tmultirect: mode: %d index: %d\n",
1801 pstate->multirect_mode, pstate->multirect_index);
1805 if (dpu_crtc->vblank_cb_count) {
1806 ktime_t diff = ktime_sub(ktime_get(), dpu_crtc->vblank_cb_time);
1807 s64 diff_ms = ktime_to_ms(diff);
1808 s64 fps = diff_ms ? div_s64(
1809 dpu_crtc->vblank_cb_count * 1000, diff_ms) : 0;
1812 "vblank fps:%lld count:%u total:%llums total_framecount:%llu\n",
1813 fps, dpu_crtc->vblank_cb_count,
1814 ktime_to_ms(diff), dpu_crtc->play_count);
1816 /* reset time & count for next measurement */
1817 dpu_crtc->vblank_cb_count = 0;
1818 dpu_crtc->vblank_cb_time = ktime_set(0, 0);
1821 seq_printf(s, "vblank_enable:%d\n", dpu_crtc->vblank_requested);
1823 mutex_unlock(&dpu_crtc->crtc_lock);
1828 static int _dpu_debugfs_status_open(struct inode *inode, struct file *file)
1830 return single_open(file, _dpu_debugfs_status_show, inode->i_private);
1833 static ssize_t _dpu_crtc_misr_setup(struct file *file,
1834 const char __user *user_buf, size_t count, loff_t *ppos)
1836 struct dpu_crtc *dpu_crtc;
1837 struct dpu_crtc_mixer *m;
1839 char buf[MISR_BUFF_SIZE + 1];
1840 u32 frame_count, enable;
1843 if (!file || !file->private_data)
1846 dpu_crtc = file->private_data;
1847 buff_copy = min_t(size_t, count, MISR_BUFF_SIZE);
1848 if (copy_from_user(buf, user_buf, buff_copy)) {
1849 DPU_ERROR("buffer copy failed\n");
1853 buf[buff_copy] = 0; /* end of string */
1855 if (sscanf(buf, "%u %u", &enable, &frame_count) != 2)
1858 rc = _dpu_crtc_power_enable(dpu_crtc, true);
1862 mutex_lock(&dpu_crtc->crtc_lock);
1863 dpu_crtc->misr_enable = enable;
1864 dpu_crtc->misr_frame_count = frame_count;
1865 for (i = 0; i < dpu_crtc->num_mixers; ++i) {
1866 dpu_crtc->misr_data[i] = 0;
1867 m = &dpu_crtc->mixers[i];
1868 if (!m->hw_lm || !m->hw_lm->ops.setup_misr)
1871 m->hw_lm->ops.setup_misr(m->hw_lm, enable, frame_count);
1873 mutex_unlock(&dpu_crtc->crtc_lock);
1874 _dpu_crtc_power_enable(dpu_crtc, false);
1879 static ssize_t _dpu_crtc_misr_read(struct file *file,
1880 char __user *user_buff, size_t count, loff_t *ppos)
1882 struct dpu_crtc *dpu_crtc;
1883 struct dpu_crtc_mixer *m;
1887 char buf[MISR_BUFF_SIZE + 1] = {'\0'};
1892 if (!file || !file->private_data)
1895 dpu_crtc = file->private_data;
1896 rc = _dpu_crtc_power_enable(dpu_crtc, true);
1900 mutex_lock(&dpu_crtc->crtc_lock);
1901 if (!dpu_crtc->misr_enable) {
1902 len += snprintf(buf + len, MISR_BUFF_SIZE - len,
1907 for (i = 0; i < dpu_crtc->num_mixers; ++i) {
1908 m = &dpu_crtc->mixers[i];
1909 if (!m->hw_lm || !m->hw_lm->ops.collect_misr)
1912 misr_status = m->hw_lm->ops.collect_misr(m->hw_lm);
1913 dpu_crtc->misr_data[i] = misr_status ? misr_status :
1914 dpu_crtc->misr_data[i];
1915 len += snprintf(buf + len, MISR_BUFF_SIZE - len, "lm idx:%d\n",
1916 m->hw_lm->idx - LM_0);
1917 len += snprintf(buf + len, MISR_BUFF_SIZE - len, "0x%x\n",
1918 dpu_crtc->misr_data[i]);
1927 if (copy_to_user(user_buff, buf, len)) {
1932 *ppos += len; /* increase offset */
1935 mutex_unlock(&dpu_crtc->crtc_lock);
1936 _dpu_crtc_power_enable(dpu_crtc, false);
1940 #define DEFINE_DPU_DEBUGFS_SEQ_FOPS(__prefix) \
1941 static int __prefix ## _open(struct inode *inode, struct file *file) \
1943 return single_open(file, __prefix ## _show, inode->i_private); \
1945 static const struct file_operations __prefix ## _fops = { \
1946 .owner = THIS_MODULE, \
1947 .open = __prefix ## _open, \
1948 .release = single_release, \
1950 .llseek = seq_lseek, \
1953 static int dpu_crtc_debugfs_state_show(struct seq_file *s, void *v)
1955 struct drm_crtc *crtc = (struct drm_crtc *) s->private;
1956 struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
1957 struct dpu_crtc_res *res;
1958 struct dpu_crtc_respool *rp;
1961 seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc));
1962 seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc));
1963 seq_printf(s, "core_clk_rate: %llu\n",
1964 dpu_crtc->cur_perf.core_clk_rate);
1965 for (i = DPU_POWER_HANDLE_DBUS_ID_MNOC;
1966 i < DPU_POWER_HANDLE_DBUS_ID_MAX; i++) {
1967 seq_printf(s, "bw_ctl[%s]: %llu\n",
1968 dpu_power_handle_get_dbus_name(i),
1969 dpu_crtc->cur_perf.bw_ctl[i]);
1970 seq_printf(s, "max_per_pipe_ib[%s]: %llu\n",
1971 dpu_power_handle_get_dbus_name(i),
1972 dpu_crtc->cur_perf.max_per_pipe_ib[i]);
1975 mutex_lock(&dpu_crtc->rp_lock);
1976 list_for_each_entry(rp, &dpu_crtc->rp_head, rp_list) {
1977 seq_printf(s, "rp.%d: ", rp->sequence_id);
1978 list_for_each_entry(res, &rp->res_list, list)
1979 seq_printf(s, "0x%x/0x%llx/%pK/%d ",
1980 res->type, res->tag, res->val,
1981 atomic_read(&res->refcount));
1984 mutex_unlock(&dpu_crtc->rp_lock);
1988 DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_crtc_debugfs_state);
1990 static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
1992 struct dpu_crtc *dpu_crtc;
1993 struct dpu_kms *dpu_kms;
1995 static const struct file_operations debugfs_status_fops = {
1996 .open = _dpu_debugfs_status_open,
1998 .llseek = seq_lseek,
1999 .release = single_release,
2001 static const struct file_operations debugfs_misr_fops = {
2002 .open = simple_open,
2003 .read = _dpu_crtc_misr_read,
2004 .write = _dpu_crtc_misr_setup,
2009 dpu_crtc = to_dpu_crtc(crtc);
2011 dpu_kms = _dpu_crtc_get_kms(crtc);
2015 dpu_crtc->debugfs_root = debugfs_create_dir(dpu_crtc->name,
2016 crtc->dev->primary->debugfs_root);
2017 if (!dpu_crtc->debugfs_root)
2020 /* don't error check these */
2021 debugfs_create_file("status", 0400,
2022 dpu_crtc->debugfs_root,
2023 dpu_crtc, &debugfs_status_fops);
2024 debugfs_create_file("state", 0600,
2025 dpu_crtc->debugfs_root,
2027 &dpu_crtc_debugfs_state_fops);
2028 debugfs_create_file("misr_data", 0600, dpu_crtc->debugfs_root,
2029 dpu_crtc, &debugfs_misr_fops);
2034 static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc)
2036 struct dpu_crtc *dpu_crtc;
2040 dpu_crtc = to_dpu_crtc(crtc);
2041 debugfs_remove_recursive(dpu_crtc->debugfs_root);
2044 static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
2049 static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc)
2052 #endif /* CONFIG_DEBUG_FS */
2054 static int dpu_crtc_late_register(struct drm_crtc *crtc)
2056 return _dpu_crtc_init_debugfs(crtc);
2059 static void dpu_crtc_early_unregister(struct drm_crtc *crtc)
2061 _dpu_crtc_destroy_debugfs(crtc);
2064 static const struct drm_crtc_funcs dpu_crtc_funcs = {
2065 .set_config = drm_atomic_helper_set_config,
2066 .destroy = dpu_crtc_destroy,
2067 .page_flip = drm_atomic_helper_page_flip,
2068 .reset = dpu_crtc_reset,
2069 .atomic_duplicate_state = dpu_crtc_duplicate_state,
2070 .atomic_destroy_state = dpu_crtc_destroy_state,
2071 .late_register = dpu_crtc_late_register,
2072 .early_unregister = dpu_crtc_early_unregister,
2075 static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = {
2076 .disable = dpu_crtc_disable,
2077 .atomic_enable = dpu_crtc_enable,
2078 .atomic_check = dpu_crtc_atomic_check,
2079 .atomic_begin = dpu_crtc_atomic_begin,
2080 .atomic_flush = dpu_crtc_atomic_flush,
2083 /* initialize crtc */
2084 struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane)
2086 struct drm_crtc *crtc = NULL;
2087 struct dpu_crtc *dpu_crtc = NULL;
2088 struct msm_drm_private *priv = NULL;
2089 struct dpu_kms *kms = NULL;
2092 priv = dev->dev_private;
2093 kms = to_dpu_kms(priv->kms);
2095 dpu_crtc = kzalloc(sizeof(*dpu_crtc), GFP_KERNEL);
2097 return ERR_PTR(-ENOMEM);
2099 crtc = &dpu_crtc->base;
2102 mutex_init(&dpu_crtc->crtc_lock);
2103 spin_lock_init(&dpu_crtc->spin_lock);
2104 atomic_set(&dpu_crtc->frame_pending, 0);
2106 mutex_init(&dpu_crtc->rp_lock);
2107 INIT_LIST_HEAD(&dpu_crtc->rp_head);
2109 init_completion(&dpu_crtc->frame_done_comp);
2111 INIT_LIST_HEAD(&dpu_crtc->frame_event_list);
2113 for (i = 0; i < ARRAY_SIZE(dpu_crtc->frame_events); i++) {
2114 INIT_LIST_HEAD(&dpu_crtc->frame_events[i].list);
2115 list_add(&dpu_crtc->frame_events[i].list,
2116 &dpu_crtc->frame_event_list);
2117 kthread_init_work(&dpu_crtc->frame_events[i].work,
2118 dpu_crtc_frame_event_work);
2121 drm_crtc_init_with_planes(dev, crtc, plane, NULL, &dpu_crtc_funcs,
2124 drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs);
2126 /* save user friendly CRTC name for later */
2127 snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id);
2129 /* initialize event handling */
2130 spin_lock_init(&dpu_crtc->event_lock);
2132 dpu_crtc->phandle = &kms->phandle;
2134 DPU_DEBUG("%s: successfully initialized crtc\n", dpu_crtc->name);