1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
30  * struct dpu_rm_requirements - Reservation requirements parameter bundle
47 		return -EINVAL;  in dpu_rm_init()
54 	for (i = 0; i < cat->mixer_count; i++) {  in dpu_rm_init()
56 		const struct dpu_lm_cfg *lm = &cat->mixer[i];  in dpu_rm_init()
64 		rm->mixer_blks[lm->id - LM_0] = &hw->base;  in dpu_rm_init()
67 	for (i = 0; i < cat->merge_3d_count; i++) {  in dpu_rm_init()
69 		const struct dpu_merge_3d_cfg *merge_3d = &cat->merge_3d[i];  in dpu_rm_init()
78 		rm->merge_3d_blks[merge_3d->id - MERGE_3D_0] = &hw->base;  in dpu_rm_init()
81 	for (i = 0; i < cat->pingpong_count; i++) {  in dpu_rm_init()
83 		const struct dpu_pingpong_cfg *pp = &cat->pingpong[i];  in dpu_rm_init()
85 		hw = dpu_hw_pingpong_init(dev, pp, mmio, cat->mdss_ver);  in dpu_rm_init()
92 		if (pp->merge_3d && pp->merge_3d < MERGE_3D_MAX)  in dpu_rm_init()
93 			hw->merge_3d = to_dpu_hw_merge_3d(rm->merge_3d_blks[pp->merge_3d - MERGE_3D_0]);  in dpu_rm_init()
94 		rm->pingpong_blks[pp->id - PINGPONG_0] = &hw->base;  in dpu_rm_init()
97 	for (i = 0; i < cat->intf_count; i++) {  in dpu_rm_init()
99 		const struct dpu_intf_cfg *intf = &cat->intf[i];  in dpu_rm_init()
101 		hw = dpu_hw_intf_init(dev, intf, mmio, cat->mdss_ver);  in dpu_rm_init()
107 		rm->hw_intf[intf->id - INTF_0] = hw;  in dpu_rm_init()
110 	for (i = 0; i < cat->wb_count; i++) {  in dpu_rm_init()
112 		const struct dpu_wb_cfg *wb = &cat->wb[i];  in dpu_rm_init()
114 		hw = dpu_hw_wb_init(dev, wb, mmio, cat->mdss_ver);  in dpu_rm_init()
120 		rm->hw_wb[wb->id - WB_0] = hw;  in dpu_rm_init()
123 	for (i = 0; i < cat->ctl_count; i++) {  in dpu_rm_init()
125 		const struct dpu_ctl_cfg *ctl = &cat->ctl[i];  in dpu_rm_init()
127 		hw = dpu_hw_ctl_init(dev, ctl, mmio, cat->mixer_count, cat->mixer);  in dpu_rm_init()
133 		rm->ctl_blks[ctl->id - CTL_0] = &hw->base;  in dpu_rm_init()
136 	for (i = 0; i < cat->dspp_count; i++) {  in dpu_rm_init()
138 		const struct dpu_dspp_cfg *dspp = &cat->dspp[i];  in dpu_rm_init()
146 		rm->dspp_blks[dspp->id - DSPP_0] = &hw->base;  in dpu_rm_init()
149 	for (i = 0; i < cat->dsc_count; i++) {  in dpu_rm_init()
151 		const struct dpu_dsc_cfg *dsc = &cat->dsc[i];  in dpu_rm_init()
153 		if (test_bit(DPU_DSC_HW_REV_1_2, &dsc->features))  in dpu_rm_init()
163 		rm->dsc_blks[dsc->id - DSC_0] = &hw->base;  in dpu_rm_init()
166 	for (i = 0; i < cat->sspp_count; i++) {  in dpu_rm_init()
168 		const struct dpu_sspp_cfg *sspp = &cat->sspp[i];  in dpu_rm_init()
170 		hw = dpu_hw_sspp_init(dev, sspp, mmio, mdss_data, cat->mdss_ver);  in dpu_rm_init()
176 		rm->hw_sspp[sspp->id - SSPP_NONE] = hw;  in dpu_rm_init()
179 	if (cat->cdm) {  in dpu_rm_init()
182 		hw = dpu_hw_cdm_init(dev, cat->cdm, mmio, cat->mdss_ver);  in dpu_rm_init()
188 		rm->cdm_blk = &hw->base;  in dpu_rm_init()
194 	return rc ? rc : -EFAULT;  in dpu_rm_init()
199 	return top->num_intf > 1;  in _dpu_rm_needs_split_display()
203  * _dpu_rm_get_lm_peer - get the id of a mixer which is a peer of the primary
205  * @primary_idx: index of primary mixer in rm->mixer_blks[]
207  * Returns: lm peer mixed id on success or %-EINVAL on error
213 	prim_lm_cfg = to_dpu_hw_mixer(rm->mixer_blks[primary_idx])->cap;  in _dpu_rm_get_lm_peer()
215 	if (prim_lm_cfg->lm_pair >= LM_0 && prim_lm_cfg->lm_pair < LM_MAX)  in _dpu_rm_get_lm_peer()
216 		return prim_lm_cfg->lm_pair - LM_0;  in _dpu_rm_get_lm_peer()
217 	return -EINVAL;  in _dpu_rm_get_lm_peer()
221  * _dpu_rm_check_lm_and_get_connected_blks - check if proposed layer mixer meets
227  * @lm_idx: index of proposed layer mixer in rm->mixer_blks[], function checks
230  * @pp_idx: output parameter, index of pingpong block attached to the layer
231  *      mixer in rm->pingpong_blks[].
232  * @dspp_idx: output parameter, index of dspp block attached to the layer
233  *      mixer in rm->dspp_blks[].
247 	if (reserved_by_other(global_state->mixer_to_enc_id, lm_idx, enc_id)) {  in _dpu_rm_check_lm_and_get_connected_blks()
252 	lm_cfg = to_dpu_hw_mixer(rm->mixer_blks[lm_idx])->cap;  in _dpu_rm_check_lm_and_get_connected_blks()
253 	idx = lm_cfg->pingpong - PINGPONG_0;  in _dpu_rm_check_lm_and_get_connected_blks()
254 	if (idx < 0 || idx >= ARRAY_SIZE(rm->pingpong_blks)) {  in _dpu_rm_check_lm_and_get_connected_blks()
255 		DPU_ERROR("failed to get pp on lm %d\n", lm_cfg->pingpong);  in _dpu_rm_check_lm_and_get_connected_blks()
259 	if (reserved_by_other(global_state->pingpong_to_enc_id, idx, enc_id)) {  in _dpu_rm_check_lm_and_get_connected_blks()
260 		DPU_DEBUG("lm %d pp %d already reserved\n", lm_cfg->id,  in _dpu_rm_check_lm_and_get_connected_blks()
261 				lm_cfg->pingpong);  in _dpu_rm_check_lm_and_get_connected_blks()
266 	if (!reqs->topology.num_dspp)  in _dpu_rm_check_lm_and_get_connected_blks()
269 	idx = lm_cfg->dspp - DSPP_0;  in _dpu_rm_check_lm_and_get_connected_blks()
270 	if (idx < 0 || idx >= ARRAY_SIZE(rm->dspp_blks)) {  in _dpu_rm_check_lm_and_get_connected_blks()
271 		DPU_ERROR("failed to get dspp on lm %d\n", lm_cfg->dspp);  in _dpu_rm_check_lm_and_get_connected_blks()
275 	if (reserved_by_other(global_state->dspp_to_enc_id, idx, enc_id)) {  in _dpu_rm_check_lm_and_get_connected_blks()
276 		DPU_DEBUG("lm %d dspp %d already reserved\n", lm_cfg->id,  in _dpu_rm_check_lm_and_get_connected_blks()
277 				lm_cfg->dspp);  in _dpu_rm_check_lm_and_get_connected_blks()
296 	if (!reqs->topology.num_lm) {  in _dpu_rm_reserve_lms()
297 		DPU_ERROR("invalid number of lm: %d\n", reqs->topology.num_lm);  in _dpu_rm_reserve_lms()
298 		return -EINVAL;  in _dpu_rm_reserve_lms()
301 	/* Find a primary mixer */  in _dpu_rm_reserve_lms()
302 	for (i = 0; i < ARRAY_SIZE(rm->mixer_blks) &&  in _dpu_rm_reserve_lms()
303 			lm_count < reqs->topology.num_lm; i++) {  in _dpu_rm_reserve_lms()
304 		if (!rm->mixer_blks[i])  in _dpu_rm_reserve_lms()
318 		/* Valid primary mixer found, find matching peers */  in _dpu_rm_reserve_lms()
319 		if (lm_count < reqs->topology.num_lm) {  in _dpu_rm_reserve_lms()
326 			if (!rm->mixer_blks[j])  in _dpu_rm_reserve_lms()
341 	if (lm_count != reqs->topology.num_lm) {  in _dpu_rm_reserve_lms()
343 		return -ENAVAIL;  in _dpu_rm_reserve_lms()
347 		global_state->mixer_to_enc_id[lm_idx[i]] = enc_id;  in _dpu_rm_reserve_lms()
348 		global_state->pingpong_to_enc_id[pp_idx[i]] = enc_id;  in _dpu_rm_reserve_lms()
349 		global_state->dspp_to_enc_id[dspp_idx[i]] =  in _dpu_rm_reserve_lms()
350 			reqs->topology.num_dspp ? enc_id : 0;  in _dpu_rm_reserve_lms()
370 	num_ctls = top->num_intf;  in _dpu_rm_reserve_ctls()
374 	for (j = 0; j < ARRAY_SIZE(rm->ctl_blks); j++) {  in _dpu_rm_reserve_ctls()
379 		if (!rm->ctl_blks[j])  in _dpu_rm_reserve_ctls()
381 		if (reserved_by_other(global_state->ctl_to_enc_id, j, enc_id))  in _dpu_rm_reserve_ctls()
384 		ctl = to_dpu_hw_ctl(rm->ctl_blks[j]);  in _dpu_rm_reserve_ctls()
385 		features = ctl->caps->features;  in _dpu_rm_reserve_ctls()
402 		return -ENAVAIL;  in _dpu_rm_reserve_ctls()
405 		global_state->ctl_to_enc_id[ctl_idx[i]] = enc_id;  in _dpu_rm_reserve_ctls()
417 	int num_dsc = top->num_dsc;  in _dpu_rm_reserve_dsc()
422 		if (!rm->dsc_blks[i]) {  in _dpu_rm_reserve_dsc()
424 			return -EIO;  in _dpu_rm_reserve_dsc()
427 		if (global_state->dsc_to_enc_id[i]) {  in _dpu_rm_reserve_dsc()
429 			return -EIO;  in _dpu_rm_reserve_dsc()
434 		global_state->dsc_to_enc_id[i] = enc->base.id;  in _dpu_rm_reserve_dsc()
444 	if (!rm->cdm_blk) {  in _dpu_rm_reserve_cdm()
446 		return -EIO;  in _dpu_rm_reserve_cdm()
449 	if (global_state->cdm_to_enc_id) {  in _dpu_rm_reserve_cdm()
451 		return -EIO;  in _dpu_rm_reserve_cdm()
454 	global_state->cdm_to_enc_id = enc->base.id;  in _dpu_rm_reserve_cdm()
467 	ret = _dpu_rm_reserve_lms(rm, global_state, enc->base.id, reqs);  in _dpu_rm_make_reservation()
473 	ret = _dpu_rm_reserve_ctls(rm, global_state, enc->base.id,  in _dpu_rm_make_reservation()
474 				&reqs->topology);  in _dpu_rm_make_reservation()
480 	ret  = _dpu_rm_reserve_dsc(rm, global_state, enc, &reqs->topology);  in _dpu_rm_make_reservation()
484 	if (reqs->topology.needs_cdm) {  in _dpu_rm_make_reservation()
500 	reqs->topology = req_topology;  in _dpu_rm_populate_requirements()
503 		      reqs->topology.num_lm, reqs->topology.num_dsc,  in _dpu_rm_populate_requirements()
504 		      reqs->topology.num_intf, reqs->topology.needs_cdm);  in _dpu_rm_populate_requirements()
523 	_dpu_rm_clear_mapping(global_state->pingpong_to_enc_id,  in dpu_rm_release()
524 		ARRAY_SIZE(global_state->pingpong_to_enc_id), enc->base.id);  in dpu_rm_release()
525 	_dpu_rm_clear_mapping(global_state->mixer_to_enc_id,  in dpu_rm_release()
526 		ARRAY_SIZE(global_state->mixer_to_enc_id), enc->base.id);  in dpu_rm_release()
527 	_dpu_rm_clear_mapping(global_state->ctl_to_enc_id,  in dpu_rm_release()
528 		ARRAY_SIZE(global_state->ctl_to_enc_id), enc->base.id);  in dpu_rm_release()
529 	_dpu_rm_clear_mapping(global_state->dsc_to_enc_id,  in dpu_rm_release()
530 		ARRAY_SIZE(global_state->dsc_to_enc_id), enc->base.id);  in dpu_rm_release()
531 	_dpu_rm_clear_mapping(global_state->dspp_to_enc_id,  in dpu_rm_release()
532 		ARRAY_SIZE(global_state->dspp_to_enc_id), enc->base.id);  in dpu_rm_release()
533 	_dpu_rm_clear_mapping(&global_state->cdm_to_enc_id, 1, enc->base.id);  in dpu_rm_release()
546 	/* Check if this is just a page-flip */  in dpu_rm_reserve()
556 		      enc->base.id, crtc_state->crtc->base.id);  in dpu_rm_reserve()
583 		hw_blks = rm->pingpong_blks;  in dpu_rm_get_assigned_resources()
584 		hw_to_enc_id = global_state->pingpong_to_enc_id;  in dpu_rm_get_assigned_resources()
585 		max_blks = ARRAY_SIZE(rm->pingpong_blks);  in dpu_rm_get_assigned_resources()
588 		hw_blks = rm->mixer_blks;  in dpu_rm_get_assigned_resources()
589 		hw_to_enc_id = global_state->mixer_to_enc_id;  in dpu_rm_get_assigned_resources()
590 		max_blks = ARRAY_SIZE(rm->mixer_blks);  in dpu_rm_get_assigned_resources()
593 		hw_blks = rm->ctl_blks;  in dpu_rm_get_assigned_resources()
594 		hw_to_enc_id = global_state->ctl_to_enc_id;  in dpu_rm_get_assigned_resources()
595 		max_blks = ARRAY_SIZE(rm->ctl_blks);  in dpu_rm_get_assigned_resources()
598 		hw_blks = rm->dspp_blks;  in dpu_rm_get_assigned_resources()
599 		hw_to_enc_id = global_state->dspp_to_enc_id;  in dpu_rm_get_assigned_resources()
600 		max_blks = ARRAY_SIZE(rm->dspp_blks);  in dpu_rm_get_assigned_resources()
603 		hw_blks = rm->dsc_blks;  in dpu_rm_get_assigned_resources()
604 		hw_to_enc_id = global_state->dsc_to_enc_id;  in dpu_rm_get_assigned_resources()
605 		max_blks = ARRAY_SIZE(rm->dsc_blks);  in dpu_rm_get_assigned_resources()
608 		hw_blks = &rm->cdm_blk;  in dpu_rm_get_assigned_resources()
609 		hw_to_enc_id = &global_state->cdm_to_enc_id;  in dpu_rm_get_assigned_resources()