2 * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 and
6 * only version 2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
18 * CTL - MDP Control Pool Manager
20 * Controls are shared between all display interfaces.
22 * They are intended to be used for data path configuration.
23 * The top level register programming describes the complete data path for
24 * a specific data path ID - REG_MDP5_CTL_*(<id>, ...)
26 * Hardware capabilities determine the number of concurrent data paths
28 * In certain use cases (high-resolution dual pipe), one single CTL can be
29 * shared across multiple CRTCs.
32 #define CTL_STAT_BUSY 0x1
33 #define CTL_STAT_BOOKED 0x2
36 struct mdp5_ctl_manager *ctlm;
40 /* CTL status bitmask */
46 /* REG_MDP5_CTL_*(<id>) registers access info + lock: */
50 /* when do CTL registers need to be flushed? (mask of trigger bits) */
51 u32 pending_ctl_trigger;
55 /* True if the current CTL has FLUSH bits pending for single FLUSH. */
58 struct mdp5_ctl *pair; /* Paired CTL to be flushed together */
61 struct mdp5_ctl_manager {
62 struct drm_device *dev;
64 /* number of CTL / Layer Mixers in this hw config: */
68 /* to filter out non-present bits in the current hardware config */
71 /* status for single FLUSH */
72 bool single_flush_supported;
73 u32 single_flush_pending_mask;
75 /* pool of CTLs + lock to protect resource allocation (ctls[i].busy) */
77 struct mdp5_ctl ctls[MAX_CTL];
81 struct mdp5_kms *get_kms(struct mdp5_ctl_manager *ctl_mgr)
83 struct msm_drm_private *priv = ctl_mgr->dev->dev_private;
85 return to_mdp5_kms(to_mdp_kms(priv->kms));
89 void ctl_write(struct mdp5_ctl *ctl, u32 reg, u32 data)
91 struct mdp5_kms *mdp5_kms = get_kms(ctl->ctlm);
93 (void)ctl->reg_offset; /* TODO use this instead of mdp5_write */
94 mdp5_write(mdp5_kms, reg, data);
98 u32 ctl_read(struct mdp5_ctl *ctl, u32 reg)
100 struct mdp5_kms *mdp5_kms = get_kms(ctl->ctlm);
102 (void)ctl->reg_offset; /* TODO use this instead of mdp5_write */
103 return mdp5_read(mdp5_kms, reg);
106 static void set_display_intf(struct mdp5_kms *mdp5_kms,
107 struct mdp5_interface *intf)
112 spin_lock_irqsave(&mdp5_kms->resource_lock, flags);
113 intf_sel = mdp5_read(mdp5_kms, REG_MDP5_DISP_INTF_SEL);
117 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF0__MASK;
118 intf_sel |= MDP5_DISP_INTF_SEL_INTF0(intf->type);
121 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF1__MASK;
122 intf_sel |= MDP5_DISP_INTF_SEL_INTF1(intf->type);
125 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF2__MASK;
126 intf_sel |= MDP5_DISP_INTF_SEL_INTF2(intf->type);
129 intf_sel &= ~MDP5_DISP_INTF_SEL_INTF3__MASK;
130 intf_sel |= MDP5_DISP_INTF_SEL_INTF3(intf->type);
137 mdp5_write(mdp5_kms, REG_MDP5_DISP_INTF_SEL, intf_sel);
138 spin_unlock_irqrestore(&mdp5_kms->resource_lock, flags);
141 static void set_ctl_op(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline)
144 struct mdp5_interface *intf = pipeline->intf;
147 if (!mdp5_cfg_intf_is_virtual(intf->type))
148 ctl_op |= MDP5_CTL_OP_INTF_NUM(INTF0 + intf->num);
150 switch (intf->type) {
152 if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
153 ctl_op |= MDP5_CTL_OP_CMD_MODE;
157 if (intf->mode == MDP5_INTF_WB_MODE_LINE)
158 ctl_op |= MDP5_CTL_OP_MODE(MODE_WB_2_LINE);
165 if (pipeline->r_mixer)
166 ctl_op |= MDP5_CTL_OP_PACK_3D_ENABLE |
167 MDP5_CTL_OP_PACK_3D(1);
169 spin_lock_irqsave(&ctl->hw_lock, flags);
170 ctl_write(ctl, REG_MDP5_CTL_OP(ctl->id), ctl_op);
171 spin_unlock_irqrestore(&ctl->hw_lock, flags);
174 int mdp5_ctl_set_pipeline(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline)
176 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
177 struct mdp5_kms *mdp5_kms = get_kms(ctl_mgr);
178 struct mdp5_interface *intf = pipeline->intf;
179 struct mdp5_hw_mixer *mixer = pipeline->mixer;
180 struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer;
182 ctl->start_mask = mdp_ctl_flush_mask_lm(mixer->lm) |
183 mdp_ctl_flush_mask_encoder(intf);
185 ctl->start_mask |= mdp_ctl_flush_mask_lm(r_mixer->lm);
187 /* Virtual interfaces need not set a display intf (e.g.: Writeback) */
188 if (!mdp5_cfg_intf_is_virtual(intf->type))
189 set_display_intf(mdp5_kms, intf);
191 set_ctl_op(ctl, pipeline);
196 static bool start_signal_needed(struct mdp5_ctl *ctl,
197 struct mdp5_pipeline *pipeline)
199 struct mdp5_interface *intf = pipeline->intf;
201 if (!ctl->encoder_enabled || ctl->start_mask != 0)
204 switch (intf->type) {
208 return intf->mode == MDP5_INTF_DSI_MODE_COMMAND;
215 * send_start_signal() - Overlay Processor Start Signal
217 * For a given control operation (display pipeline), a START signal needs to be
218 * executed in order to kick off operation and activate all layers.
219 * e.g.: DSI command mode, Writeback
221 static void send_start_signal(struct mdp5_ctl *ctl)
225 spin_lock_irqsave(&ctl->hw_lock, flags);
226 ctl_write(ctl, REG_MDP5_CTL_START(ctl->id), 1);
227 spin_unlock_irqrestore(&ctl->hw_lock, flags);
230 static void refill_start_mask(struct mdp5_ctl *ctl,
231 struct mdp5_pipeline *pipeline)
233 struct mdp5_interface *intf = pipeline->intf;
234 struct mdp5_hw_mixer *mixer = pipeline->mixer;
235 struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer;
237 ctl->start_mask = mdp_ctl_flush_mask_lm(mixer->lm);
239 ctl->start_mask |= mdp_ctl_flush_mask_lm(r_mixer->lm);
242 * Writeback encoder needs to program & flush
243 * address registers for each page flip..
245 if (intf->type == INTF_WB)
246 ctl->start_mask |= mdp_ctl_flush_mask_encoder(intf);
250 * mdp5_ctl_set_encoder_state() - set the encoder state
252 * @enable: true, when encoder is ready for data streaming; false, otherwise.
255 * This encoder state is needed to trigger START signal (data path kickoff).
257 int mdp5_ctl_set_encoder_state(struct mdp5_ctl *ctl,
258 struct mdp5_pipeline *pipeline,
261 struct mdp5_interface *intf = pipeline->intf;
266 ctl->encoder_enabled = enabled;
267 DBG("intf_%d: %s", intf->num, enabled ? "on" : "off");
269 if (start_signal_needed(ctl, pipeline)) {
270 send_start_signal(ctl);
271 refill_start_mask(ctl, pipeline);
279 * CTL registers need to be flushed after calling this function
280 * (call mdp5_ctl_commit() with mdp_ctl_flush_mask_ctl() mask)
282 int mdp5_ctl_set_cursor(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline,
283 int cursor_id, bool enable)
285 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
288 struct mdp5_hw_mixer *mixer = pipeline->mixer;
290 if (unlikely(WARN_ON(!mixer))) {
291 dev_err(ctl_mgr->dev->dev, "CTL %d cannot find LM",
296 if (pipeline->r_mixer) {
297 dev_err(ctl_mgr->dev->dev, "unsupported configuration");
301 spin_lock_irqsave(&ctl->hw_lock, flags);
303 blend_cfg = ctl_read(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, mixer->lm));
306 blend_cfg |= MDP5_CTL_LAYER_REG_CURSOR_OUT;
308 blend_cfg &= ~MDP5_CTL_LAYER_REG_CURSOR_OUT;
310 ctl_write(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, mixer->lm), blend_cfg);
311 ctl->cursor_on = enable;
313 spin_unlock_irqrestore(&ctl->hw_lock, flags);
315 ctl->pending_ctl_trigger = mdp_ctl_flush_mask_cursor(cursor_id);
320 static u32 mdp_ctl_blend_mask(enum mdp5_pipe pipe,
321 enum mdp_mixer_stage_id stage)
324 case SSPP_VIG0: return MDP5_CTL_LAYER_REG_VIG0(stage);
325 case SSPP_VIG1: return MDP5_CTL_LAYER_REG_VIG1(stage);
326 case SSPP_VIG2: return MDP5_CTL_LAYER_REG_VIG2(stage);
327 case SSPP_RGB0: return MDP5_CTL_LAYER_REG_RGB0(stage);
328 case SSPP_RGB1: return MDP5_CTL_LAYER_REG_RGB1(stage);
329 case SSPP_RGB2: return MDP5_CTL_LAYER_REG_RGB2(stage);
330 case SSPP_DMA0: return MDP5_CTL_LAYER_REG_DMA0(stage);
331 case SSPP_DMA1: return MDP5_CTL_LAYER_REG_DMA1(stage);
332 case SSPP_VIG3: return MDP5_CTL_LAYER_REG_VIG3(stage);
333 case SSPP_RGB3: return MDP5_CTL_LAYER_REG_RGB3(stage);
340 static u32 mdp_ctl_blend_ext_mask(enum mdp5_pipe pipe,
341 enum mdp_mixer_stage_id stage)
343 if (stage < STAGE6 && (pipe != SSPP_CURSOR0 && pipe != SSPP_CURSOR1))
347 case SSPP_VIG0: return MDP5_CTL_LAYER_EXT_REG_VIG0_BIT3;
348 case SSPP_VIG1: return MDP5_CTL_LAYER_EXT_REG_VIG1_BIT3;
349 case SSPP_VIG2: return MDP5_CTL_LAYER_EXT_REG_VIG2_BIT3;
350 case SSPP_RGB0: return MDP5_CTL_LAYER_EXT_REG_RGB0_BIT3;
351 case SSPP_RGB1: return MDP5_CTL_LAYER_EXT_REG_RGB1_BIT3;
352 case SSPP_RGB2: return MDP5_CTL_LAYER_EXT_REG_RGB2_BIT3;
353 case SSPP_DMA0: return MDP5_CTL_LAYER_EXT_REG_DMA0_BIT3;
354 case SSPP_DMA1: return MDP5_CTL_LAYER_EXT_REG_DMA1_BIT3;
355 case SSPP_VIG3: return MDP5_CTL_LAYER_EXT_REG_VIG3_BIT3;
356 case SSPP_RGB3: return MDP5_CTL_LAYER_EXT_REG_RGB3_BIT3;
357 case SSPP_CURSOR0: return MDP5_CTL_LAYER_EXT_REG_CURSOR0(stage);
358 case SSPP_CURSOR1: return MDP5_CTL_LAYER_EXT_REG_CURSOR1(stage);
363 static void mdp5_ctl_reset_blend_regs(struct mdp5_ctl *ctl)
366 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
369 spin_lock_irqsave(&ctl->hw_lock, flags);
371 for (i = 0; i < ctl_mgr->nlm; i++) {
372 ctl_write(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, i), 0x0);
373 ctl_write(ctl, REG_MDP5_CTL_LAYER_EXT_REG(ctl->id, i), 0x0);
376 spin_unlock_irqrestore(&ctl->hw_lock, flags);
381 int mdp5_ctl_blend(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline,
382 enum mdp5_pipe stage[][MAX_PIPE_STAGE],
383 enum mdp5_pipe r_stage[][MAX_PIPE_STAGE],
384 u32 stage_cnt, u32 ctl_blend_op_flags)
386 struct mdp5_hw_mixer *mixer = pipeline->mixer;
387 struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer;
389 u32 blend_cfg = 0, blend_ext_cfg = 0;
390 u32 r_blend_cfg = 0, r_blend_ext_cfg = 0;
393 mdp5_ctl_reset_blend_regs(ctl);
395 if (ctl_blend_op_flags & MDP5_CTL_BLEND_OP_FLAG_BORDER_OUT) {
396 start_stage = STAGE0;
397 blend_cfg |= MDP5_CTL_LAYER_REG_BORDER_COLOR;
399 r_blend_cfg |= MDP5_CTL_LAYER_REG_BORDER_COLOR;
401 start_stage = STAGE_BASE;
404 for (i = start_stage; stage_cnt && i <= STAGE_MAX; i++) {
406 mdp_ctl_blend_mask(stage[i][PIPE_LEFT], i) |
407 mdp_ctl_blend_mask(stage[i][PIPE_RIGHT], i);
409 mdp_ctl_blend_ext_mask(stage[i][PIPE_LEFT], i) |
410 mdp_ctl_blend_ext_mask(stage[i][PIPE_RIGHT], i);
413 mdp_ctl_blend_mask(r_stage[i][PIPE_LEFT], i) |
414 mdp_ctl_blend_mask(r_stage[i][PIPE_RIGHT], i);
416 mdp_ctl_blend_ext_mask(r_stage[i][PIPE_LEFT], i) |
417 mdp_ctl_blend_ext_mask(r_stage[i][PIPE_RIGHT], i);
421 spin_lock_irqsave(&ctl->hw_lock, flags);
423 blend_cfg |= MDP5_CTL_LAYER_REG_CURSOR_OUT;
425 ctl_write(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, mixer->lm), blend_cfg);
426 ctl_write(ctl, REG_MDP5_CTL_LAYER_EXT_REG(ctl->id, mixer->lm),
429 ctl_write(ctl, REG_MDP5_CTL_LAYER_REG(ctl->id, r_mixer->lm),
431 ctl_write(ctl, REG_MDP5_CTL_LAYER_EXT_REG(ctl->id, r_mixer->lm),
434 spin_unlock_irqrestore(&ctl->hw_lock, flags);
436 ctl->pending_ctl_trigger = mdp_ctl_flush_mask_lm(mixer->lm);
438 ctl->pending_ctl_trigger |= mdp_ctl_flush_mask_lm(r_mixer->lm);
440 DBG("lm%d: blend config = 0x%08x. ext_cfg = 0x%08x", mixer->lm,
441 blend_cfg, blend_ext_cfg);
443 DBG("lm%d: blend config = 0x%08x. ext_cfg = 0x%08x",
444 r_mixer->lm, r_blend_cfg, r_blend_ext_cfg);
449 u32 mdp_ctl_flush_mask_encoder(struct mdp5_interface *intf)
451 if (intf->type == INTF_WB)
452 return MDP5_CTL_FLUSH_WB;
455 case 0: return MDP5_CTL_FLUSH_TIMING_0;
456 case 1: return MDP5_CTL_FLUSH_TIMING_1;
457 case 2: return MDP5_CTL_FLUSH_TIMING_2;
458 case 3: return MDP5_CTL_FLUSH_TIMING_3;
463 u32 mdp_ctl_flush_mask_cursor(int cursor_id)
466 case 0: return MDP5_CTL_FLUSH_CURSOR_0;
467 case 1: return MDP5_CTL_FLUSH_CURSOR_1;
472 u32 mdp_ctl_flush_mask_pipe(enum mdp5_pipe pipe)
475 case SSPP_VIG0: return MDP5_CTL_FLUSH_VIG0;
476 case SSPP_VIG1: return MDP5_CTL_FLUSH_VIG1;
477 case SSPP_VIG2: return MDP5_CTL_FLUSH_VIG2;
478 case SSPP_RGB0: return MDP5_CTL_FLUSH_RGB0;
479 case SSPP_RGB1: return MDP5_CTL_FLUSH_RGB1;
480 case SSPP_RGB2: return MDP5_CTL_FLUSH_RGB2;
481 case SSPP_DMA0: return MDP5_CTL_FLUSH_DMA0;
482 case SSPP_DMA1: return MDP5_CTL_FLUSH_DMA1;
483 case SSPP_VIG3: return MDP5_CTL_FLUSH_VIG3;
484 case SSPP_RGB3: return MDP5_CTL_FLUSH_RGB3;
485 case SSPP_CURSOR0: return MDP5_CTL_FLUSH_CURSOR_0;
486 case SSPP_CURSOR1: return MDP5_CTL_FLUSH_CURSOR_1;
491 u32 mdp_ctl_flush_mask_lm(int lm)
494 case 0: return MDP5_CTL_FLUSH_LM0;
495 case 1: return MDP5_CTL_FLUSH_LM1;
496 case 2: return MDP5_CTL_FLUSH_LM2;
497 case 5: return MDP5_CTL_FLUSH_LM5;
502 static u32 fix_sw_flush(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline,
505 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
507 #define BIT_NEEDS_SW_FIX(bit) \
508 (!(ctl_mgr->flush_hw_mask & bit) && (flush_mask & bit))
510 /* for some targets, cursor bit is the same as LM bit */
511 if (BIT_NEEDS_SW_FIX(MDP5_CTL_FLUSH_CURSOR_0))
512 sw_mask |= mdp_ctl_flush_mask_lm(pipeline->mixer->lm);
517 static void fix_for_single_flush(struct mdp5_ctl *ctl, u32 *flush_mask,
520 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
523 DBG("CTL %d FLUSH pending mask %x", ctl->id, *flush_mask);
524 ctl->flush_pending = true;
525 ctl_mgr->single_flush_pending_mask |= (*flush_mask);
528 if (ctl->pair->flush_pending) {
529 *flush_id = min_t(u32, ctl->id, ctl->pair->id);
530 *flush_mask = ctl_mgr->single_flush_pending_mask;
532 ctl->flush_pending = false;
533 ctl->pair->flush_pending = false;
534 ctl_mgr->single_flush_pending_mask = 0;
536 DBG("Single FLUSH mask %x,ID %d", *flush_mask,
543 * mdp5_ctl_commit() - Register Flush
545 * The flush register is used to indicate several registers are all
546 * programmed, and are safe to update to the back copy of the double
547 * buffered registers.
549 * Some registers FLUSH bits are shared when the hardware does not have
550 * dedicated bits for them; handling these is the job of fix_sw_flush().
552 * CTL registers need to be flushed in some circumstances; if that is the
553 * case, some trigger bits will be present in both flush mask and
554 * ctl->pending_ctl_trigger.
556 * Return H/W flushed bit mask.
558 u32 mdp5_ctl_commit(struct mdp5_ctl *ctl,
559 struct mdp5_pipeline *pipeline,
562 struct mdp5_ctl_manager *ctl_mgr = ctl->ctlm;
564 u32 flush_id = ctl->id;
565 u32 curr_ctl_flush_mask;
567 ctl->start_mask &= ~flush_mask;
569 VERB("flush_mask=%x, start_mask=%x, trigger=%x", flush_mask,
570 ctl->start_mask, ctl->pending_ctl_trigger);
572 if (ctl->pending_ctl_trigger & flush_mask) {
573 flush_mask |= MDP5_CTL_FLUSH_CTL;
574 ctl->pending_ctl_trigger = 0;
577 flush_mask |= fix_sw_flush(ctl, pipeline, flush_mask);
579 flush_mask &= ctl_mgr->flush_hw_mask;
581 curr_ctl_flush_mask = flush_mask;
583 fix_for_single_flush(ctl, &flush_mask, &flush_id);
586 spin_lock_irqsave(&ctl->hw_lock, flags);
587 ctl_write(ctl, REG_MDP5_CTL_FLUSH(flush_id), flush_mask);
588 spin_unlock_irqrestore(&ctl->hw_lock, flags);
591 if (start_signal_needed(ctl, pipeline)) {
592 send_start_signal(ctl);
593 refill_start_mask(ctl, pipeline);
596 return curr_ctl_flush_mask;
599 u32 mdp5_ctl_get_commit_status(struct mdp5_ctl *ctl)
601 return ctl_read(ctl, REG_MDP5_CTL_FLUSH(ctl->id));
604 int mdp5_ctl_get_ctl_id(struct mdp5_ctl *ctl)
606 return WARN_ON(!ctl) ? -EINVAL : ctl->id;
610 * mdp5_ctl_pair() - Associate 2 booked CTLs for single FLUSH
612 int mdp5_ctl_pair(struct mdp5_ctl *ctlx, struct mdp5_ctl *ctly, bool enable)
614 struct mdp5_ctl_manager *ctl_mgr = ctlx->ctlm;
615 struct mdp5_kms *mdp5_kms = get_kms(ctl_mgr);
617 /* do nothing silently if hw doesn't support */
618 if (!ctl_mgr->single_flush_supported)
624 mdp5_write(mdp5_kms, REG_MDP5_SPARE_0, 0);
626 } else if ((ctlx->pair != NULL) || (ctly->pair != NULL)) {
627 dev_err(ctl_mgr->dev->dev, "CTLs already paired\n");
629 } else if (!(ctlx->status & ctly->status & CTL_STAT_BOOKED)) {
630 dev_err(ctl_mgr->dev->dev, "Only pair booked CTLs\n");
637 mdp5_write(mdp5_kms, REG_MDP5_SPARE_0,
638 MDP5_SPARE_0_SPLIT_DPL_SINGLE_FLUSH_EN);
644 * mdp5_ctl_request() - CTL allocation
646 * Try to return booked CTL for @intf_num is 1 or 2, unbooked for other INTFs.
647 * If no CTL is available in preferred category, allocate from the other one.
649 * @return fail if no CTL is available.
651 struct mdp5_ctl *mdp5_ctlm_request(struct mdp5_ctl_manager *ctl_mgr,
654 struct mdp5_ctl *ctl = NULL;
655 const u32 checkm = CTL_STAT_BUSY | CTL_STAT_BOOKED;
656 u32 match = ((intf_num == 1) || (intf_num == 2)) ? CTL_STAT_BOOKED : 0;
660 spin_lock_irqsave(&ctl_mgr->pool_lock, flags);
662 /* search the preferred */
663 for (c = 0; c < ctl_mgr->nctl; c++)
664 if ((ctl_mgr->ctls[c].status & checkm) == match)
667 dev_warn(ctl_mgr->dev->dev,
668 "fall back to the other CTL category for INTF %d!\n", intf_num);
670 match ^= CTL_STAT_BOOKED;
671 for (c = 0; c < ctl_mgr->nctl; c++)
672 if ((ctl_mgr->ctls[c].status & checkm) == match)
675 dev_err(ctl_mgr->dev->dev, "No more CTL available!");
679 ctl = &ctl_mgr->ctls[c];
680 ctl->status |= CTL_STAT_BUSY;
681 ctl->pending_ctl_trigger = 0;
682 DBG("CTL %d allocated", ctl->id);
685 spin_unlock_irqrestore(&ctl_mgr->pool_lock, flags);
689 void mdp5_ctlm_hw_reset(struct mdp5_ctl_manager *ctl_mgr)
694 for (c = 0; c < ctl_mgr->nctl; c++) {
695 struct mdp5_ctl *ctl = &ctl_mgr->ctls[c];
697 spin_lock_irqsave(&ctl->hw_lock, flags);
698 ctl_write(ctl, REG_MDP5_CTL_OP(ctl->id), 0);
699 spin_unlock_irqrestore(&ctl->hw_lock, flags);
703 void mdp5_ctlm_destroy(struct mdp5_ctl_manager *ctl_mgr)
708 struct mdp5_ctl_manager *mdp5_ctlm_init(struct drm_device *dev,
709 void __iomem *mmio_base, struct mdp5_cfg_handler *cfg_hnd)
711 struct mdp5_ctl_manager *ctl_mgr;
712 const struct mdp5_cfg_hw *hw_cfg = mdp5_cfg_get_hw_config(cfg_hnd);
713 int rev = mdp5_cfg_get_hw_rev(cfg_hnd);
714 const struct mdp5_ctl_block *ctl_cfg = &hw_cfg->ctl;
718 ctl_mgr = kzalloc(sizeof(*ctl_mgr), GFP_KERNEL);
720 dev_err(dev->dev, "failed to allocate CTL manager\n");
725 if (unlikely(WARN_ON(ctl_cfg->count > MAX_CTL))) {
726 dev_err(dev->dev, "Increase static pool size to at least %d\n",
732 /* initialize the CTL manager: */
734 ctl_mgr->nlm = hw_cfg->lm.count;
735 ctl_mgr->nctl = ctl_cfg->count;
736 ctl_mgr->flush_hw_mask = ctl_cfg->flush_hw_mask;
737 spin_lock_init(&ctl_mgr->pool_lock);
739 /* initialize each CTL of the pool: */
740 spin_lock_irqsave(&ctl_mgr->pool_lock, flags);
741 for (c = 0; c < ctl_mgr->nctl; c++) {
742 struct mdp5_ctl *ctl = &ctl_mgr->ctls[c];
744 if (WARN_ON(!ctl_cfg->base[c])) {
745 dev_err(dev->dev, "CTL_%d: base is null!\n", c);
747 spin_unlock_irqrestore(&ctl_mgr->pool_lock, flags);
752 ctl->reg_offset = ctl_cfg->base[c];
754 spin_lock_init(&ctl->hw_lock);
758 * In Dual DSI case, CTL0 and CTL1 are always assigned to two DSI
759 * interfaces to support single FLUSH feature (Flush CTL0 and CTL1 when
760 * only write into CTL0's FLUSH register) to keep two DSI pipes in sync.
761 * Single FLUSH is supported from hw rev v3.0.
764 ctl_mgr->single_flush_supported = true;
765 /* Reserve CTL0/1 for INTF1/2 */
766 ctl_mgr->ctls[0].status |= CTL_STAT_BOOKED;
767 ctl_mgr->ctls[1].status |= CTL_STAT_BOOKED;
769 spin_unlock_irqrestore(&ctl_mgr->pool_lock, flags);
770 DBG("Pool of %d CTLs created.", ctl_mgr->nctl);
776 mdp5_ctlm_destroy(ctl_mgr);