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[thirdparty/linux.git] / drivers / gpu / drm / amd / display / amdgpu_dm / amdgpu_dm.c
1 /*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #include "dm_services_types.h"
27 #include "dc.h"
28 #include "dc/inc/core_types.h"
29
30 #include "vid.h"
31 #include "amdgpu.h"
32 #include "amdgpu_display.h"
33 #include "amdgpu_ucode.h"
34 #include "atom.h"
35 #include "amdgpu_dm.h"
36 #include "amdgpu_pm.h"
37
38 #include "amd_shared.h"
39 #include "amdgpu_dm_irq.h"
40 #include "dm_helpers.h"
41 #include "dm_services_types.h"
42 #include "amdgpu_dm_mst_types.h"
43 #if defined(CONFIG_DEBUG_FS)
44 #include "amdgpu_dm_debugfs.h"
45 #endif
46
47 #include "ivsrcid/ivsrcid_vislands30.h"
48
49 #include <linux/module.h>
50 #include <linux/moduleparam.h>
51 #include <linux/version.h>
52 #include <linux/types.h>
53 #include <linux/pm_runtime.h>
54 #include <linux/firmware.h>
55
56 #include <drm/drmP.h>
57 #include <drm/drm_atomic.h>
58 #include <drm/drm_atomic_helper.h>
59 #include <drm/drm_dp_mst_helper.h>
60 #include <drm/drm_fb_helper.h>
61 #include <drm/drm_edid.h>
62
63 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
64 #include "ivsrcid/irqsrcs_dcn_1_0.h"
65
66 #include "dcn/dcn_1_0_offset.h"
67 #include "dcn/dcn_1_0_sh_mask.h"
68 #include "soc15_hw_ip.h"
69 #include "vega10_ip_offset.h"
70
71 #include "soc15_common.h"
72 #endif
73
74 #include "modules/inc/mod_freesync.h"
75
76 #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin"
77 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU);
78
79 /* basic init/fini API */
80 static int amdgpu_dm_init(struct amdgpu_device *adev);
81 static void amdgpu_dm_fini(struct amdgpu_device *adev);
82
83 /*
84 * initializes drm_device display related structures, based on the information
85 * provided by DAL. The drm strcutures are: drm_crtc, drm_connector,
86 * drm_encoder, drm_mode_config
87 *
88 * Returns 0 on success
89 */
90 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
91 /* removes and deallocates the drm structures, created by the above function */
92 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
93
94 static void
95 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector);
96
97 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
98 struct amdgpu_plane *aplane,
99 unsigned long possible_crtcs);
100 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
101 struct drm_plane *plane,
102 uint32_t link_index);
103 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
104 struct amdgpu_dm_connector *amdgpu_dm_connector,
105 uint32_t link_index,
106 struct amdgpu_encoder *amdgpu_encoder);
107 static int amdgpu_dm_encoder_init(struct drm_device *dev,
108 struct amdgpu_encoder *aencoder,
109 uint32_t link_index);
110
111 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector);
112
113 static int amdgpu_dm_atomic_commit(struct drm_device *dev,
114 struct drm_atomic_state *state,
115 bool nonblock);
116
117 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state);
118
119 static int amdgpu_dm_atomic_check(struct drm_device *dev,
120 struct drm_atomic_state *state);
121
122
123
124
125 static const enum drm_plane_type dm_plane_type_default[AMDGPU_MAX_PLANES] = {
126 DRM_PLANE_TYPE_PRIMARY,
127 DRM_PLANE_TYPE_PRIMARY,
128 DRM_PLANE_TYPE_PRIMARY,
129 DRM_PLANE_TYPE_PRIMARY,
130 DRM_PLANE_TYPE_PRIMARY,
131 DRM_PLANE_TYPE_PRIMARY,
132 };
133
134 static const enum drm_plane_type dm_plane_type_carizzo[AMDGPU_MAX_PLANES] = {
135 DRM_PLANE_TYPE_PRIMARY,
136 DRM_PLANE_TYPE_PRIMARY,
137 DRM_PLANE_TYPE_PRIMARY,
138 DRM_PLANE_TYPE_OVERLAY,/* YUV Capable Underlay */
139 };
140
141 static const enum drm_plane_type dm_plane_type_stoney[AMDGPU_MAX_PLANES] = {
142 DRM_PLANE_TYPE_PRIMARY,
143 DRM_PLANE_TYPE_PRIMARY,
144 DRM_PLANE_TYPE_OVERLAY, /* YUV Capable Underlay */
145 };
146
147 /*
148 * dm_vblank_get_counter
149 *
150 * @brief
151 * Get counter for number of vertical blanks
152 *
153 * @param
154 * struct amdgpu_device *adev - [in] desired amdgpu device
155 * int disp_idx - [in] which CRTC to get the counter from
156 *
157 * @return
158 * Counter for vertical blanks
159 */
160 static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc)
161 {
162 if (crtc >= adev->mode_info.num_crtc)
163 return 0;
164 else {
165 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
166 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(
167 acrtc->base.state);
168
169
170 if (acrtc_state->stream == NULL) {
171 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
172 crtc);
173 return 0;
174 }
175
176 return dc_stream_get_vblank_counter(acrtc_state->stream);
177 }
178 }
179
180 static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
181 u32 *vbl, u32 *position)
182 {
183 uint32_t v_blank_start, v_blank_end, h_position, v_position;
184
185 if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
186 return -EINVAL;
187 else {
188 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
189 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(
190 acrtc->base.state);
191
192 if (acrtc_state->stream == NULL) {
193 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
194 crtc);
195 return 0;
196 }
197
198 /*
199 * TODO rework base driver to use values directly.
200 * for now parse it back into reg-format
201 */
202 dc_stream_get_scanoutpos(acrtc_state->stream,
203 &v_blank_start,
204 &v_blank_end,
205 &h_position,
206 &v_position);
207
208 *position = v_position | (h_position << 16);
209 *vbl = v_blank_start | (v_blank_end << 16);
210 }
211
212 return 0;
213 }
214
215 static bool dm_is_idle(void *handle)
216 {
217 /* XXX todo */
218 return true;
219 }
220
221 static int dm_wait_for_idle(void *handle)
222 {
223 /* XXX todo */
224 return 0;
225 }
226
227 static bool dm_check_soft_reset(void *handle)
228 {
229 return false;
230 }
231
232 static int dm_soft_reset(void *handle)
233 {
234 /* XXX todo */
235 return 0;
236 }
237
238 static struct amdgpu_crtc *
239 get_crtc_by_otg_inst(struct amdgpu_device *adev,
240 int otg_inst)
241 {
242 struct drm_device *dev = adev->ddev;
243 struct drm_crtc *crtc;
244 struct amdgpu_crtc *amdgpu_crtc;
245
246 if (otg_inst == -1) {
247 WARN_ON(1);
248 return adev->mode_info.crtcs[0];
249 }
250
251 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
252 amdgpu_crtc = to_amdgpu_crtc(crtc);
253
254 if (amdgpu_crtc->otg_inst == otg_inst)
255 return amdgpu_crtc;
256 }
257
258 return NULL;
259 }
260
261 static void dm_pflip_high_irq(void *interrupt_params)
262 {
263 struct amdgpu_crtc *amdgpu_crtc;
264 struct common_irq_params *irq_params = interrupt_params;
265 struct amdgpu_device *adev = irq_params->adev;
266 unsigned long flags;
267
268 amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP);
269
270 /* IRQ could occur when in initial stage */
271 /* TODO work and BO cleanup */
272 if (amdgpu_crtc == NULL) {
273 DRM_DEBUG_DRIVER("CRTC is null, returning.\n");
274 return;
275 }
276
277 spin_lock_irqsave(&adev->ddev->event_lock, flags);
278
279 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
280 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n",
281 amdgpu_crtc->pflip_status,
282 AMDGPU_FLIP_SUBMITTED,
283 amdgpu_crtc->crtc_id,
284 amdgpu_crtc);
285 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
286 return;
287 }
288
289
290 /* wake up userspace */
291 if (amdgpu_crtc->event) {
292 /* Update to correct count(s) if racing with vblank irq */
293 drm_crtc_accurate_vblank_count(&amdgpu_crtc->base);
294
295 drm_crtc_send_vblank_event(&amdgpu_crtc->base, amdgpu_crtc->event);
296
297 /* page flip completed. clean up */
298 amdgpu_crtc->event = NULL;
299
300 } else
301 WARN_ON(1);
302
303 amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
304 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
305
306 DRM_DEBUG_DRIVER("%s - crtc :%d[%p], pflip_stat:AMDGPU_FLIP_NONE\n",
307 __func__, amdgpu_crtc->crtc_id, amdgpu_crtc);
308
309 drm_crtc_vblank_put(&amdgpu_crtc->base);
310 }
311
312 static void dm_crtc_high_irq(void *interrupt_params)
313 {
314 struct common_irq_params *irq_params = interrupt_params;
315 struct amdgpu_device *adev = irq_params->adev;
316 struct amdgpu_crtc *acrtc;
317
318 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
319
320 if (acrtc) {
321 drm_crtc_handle_vblank(&acrtc->base);
322 amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
323 }
324 }
325
326 static int dm_set_clockgating_state(void *handle,
327 enum amd_clockgating_state state)
328 {
329 return 0;
330 }
331
332 static int dm_set_powergating_state(void *handle,
333 enum amd_powergating_state state)
334 {
335 return 0;
336 }
337
338 /* Prototypes of private functions */
339 static int dm_early_init(void* handle);
340
341 /* Allocate memory for FBC compressed data */
342 static void amdgpu_dm_fbc_init(struct drm_connector *connector)
343 {
344 struct drm_device *dev = connector->dev;
345 struct amdgpu_device *adev = dev->dev_private;
346 struct dm_comressor_info *compressor = &adev->dm.compressor;
347 struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector);
348 struct drm_display_mode *mode;
349 unsigned long max_size = 0;
350
351 if (adev->dm.dc->fbc_compressor == NULL)
352 return;
353
354 if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP)
355 return;
356
357 if (compressor->bo_ptr)
358 return;
359
360
361 list_for_each_entry(mode, &connector->modes, head) {
362 if (max_size < mode->htotal * mode->vtotal)
363 max_size = mode->htotal * mode->vtotal;
364 }
365
366 if (max_size) {
367 int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE,
368 AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr,
369 &compressor->gpu_addr, &compressor->cpu_addr);
370
371 if (r)
372 DRM_ERROR("DM: Failed to initialize FBC\n");
373 else {
374 adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr;
375 DRM_INFO("DM: FBC alloc %lu\n", max_size*4);
376 }
377
378 }
379
380 }
381
382 /*
383 * Init display KMS
384 *
385 * Returns 0 on success
386 */
387 static int amdgpu_dm_init(struct amdgpu_device *adev)
388 {
389 struct dc_init_data init_data;
390 adev->dm.ddev = adev->ddev;
391 adev->dm.adev = adev;
392
393 /* Zero all the fields */
394 memset(&init_data, 0, sizeof(init_data));
395
396 if(amdgpu_dm_irq_init(adev)) {
397 DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
398 goto error;
399 }
400
401 init_data.asic_id.chip_family = adev->family;
402
403 init_data.asic_id.pci_revision_id = adev->rev_id;
404 init_data.asic_id.hw_internal_rev = adev->external_rev_id;
405
406 init_data.asic_id.vram_width = adev->gmc.vram_width;
407 /* TODO: initialize init_data.asic_id.vram_type here!!!! */
408 init_data.asic_id.atombios_base_address =
409 adev->mode_info.atom_context->bios;
410
411 init_data.driver = adev;
412
413 adev->dm.cgs_device = amdgpu_cgs_create_device(adev);
414
415 if (!adev->dm.cgs_device) {
416 DRM_ERROR("amdgpu: failed to create cgs device.\n");
417 goto error;
418 }
419
420 init_data.cgs_device = adev->dm.cgs_device;
421
422 init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
423
424 /*
425 * TODO debug why this doesn't work on Raven
426 */
427 if (adev->flags & AMD_IS_APU &&
428 adev->asic_type >= CHIP_CARRIZO &&
429 adev->asic_type < CHIP_RAVEN)
430 init_data.flags.gpu_vm_support = true;
431
432 if (amdgpu_dc_feature_mask & DC_FBC_MASK)
433 init_data.flags.fbc_support = true;
434
435 /* Display Core create. */
436 adev->dm.dc = dc_create(&init_data);
437
438 if (adev->dm.dc) {
439 DRM_INFO("Display Core initialized with v%s!\n", DC_VER);
440 } else {
441 DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER);
442 goto error;
443 }
444
445 adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
446 if (!adev->dm.freesync_module) {
447 DRM_ERROR(
448 "amdgpu: failed to initialize freesync_module.\n");
449 } else
450 DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n",
451 adev->dm.freesync_module);
452
453 amdgpu_dm_init_color_mod();
454
455 if (amdgpu_dm_initialize_drm_device(adev)) {
456 DRM_ERROR(
457 "amdgpu: failed to initialize sw for display support.\n");
458 goto error;
459 }
460
461 /* Update the actual used number of crtc */
462 adev->mode_info.num_crtc = adev->dm.display_indexes_num;
463
464 /* TODO: Add_display_info? */
465
466 /* TODO use dynamic cursor width */
467 adev->ddev->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
468 adev->ddev->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
469
470 if (drm_vblank_init(adev->ddev, adev->dm.display_indexes_num)) {
471 DRM_ERROR(
472 "amdgpu: failed to initialize sw for display support.\n");
473 goto error;
474 }
475
476 #if defined(CONFIG_DEBUG_FS)
477 if (dtn_debugfs_init(adev))
478 DRM_ERROR("amdgpu: failed initialize dtn debugfs support.\n");
479 #endif
480
481 DRM_DEBUG_DRIVER("KMS initialized.\n");
482
483 return 0;
484 error:
485 amdgpu_dm_fini(adev);
486
487 return -EINVAL;
488 }
489
490 static void amdgpu_dm_fini(struct amdgpu_device *adev)
491 {
492 amdgpu_dm_destroy_drm_device(&adev->dm);
493 /*
494 * TODO: pageflip, vlank interrupt
495 *
496 * amdgpu_dm_irq_fini(adev);
497 */
498
499 if (adev->dm.cgs_device) {
500 amdgpu_cgs_destroy_device(adev->dm.cgs_device);
501 adev->dm.cgs_device = NULL;
502 }
503 if (adev->dm.freesync_module) {
504 mod_freesync_destroy(adev->dm.freesync_module);
505 adev->dm.freesync_module = NULL;
506 }
507 /* DC Destroy TODO: Replace destroy DAL */
508 if (adev->dm.dc)
509 dc_destroy(&adev->dm.dc);
510 return;
511 }
512
513 static int load_dmcu_fw(struct amdgpu_device *adev)
514 {
515 const char *fw_name_dmcu;
516 int r;
517 const struct dmcu_firmware_header_v1_0 *hdr;
518
519 switch(adev->asic_type) {
520 case CHIP_BONAIRE:
521 case CHIP_HAWAII:
522 case CHIP_KAVERI:
523 case CHIP_KABINI:
524 case CHIP_MULLINS:
525 case CHIP_TONGA:
526 case CHIP_FIJI:
527 case CHIP_CARRIZO:
528 case CHIP_STONEY:
529 case CHIP_POLARIS11:
530 case CHIP_POLARIS10:
531 case CHIP_POLARIS12:
532 case CHIP_VEGAM:
533 case CHIP_VEGA10:
534 case CHIP_VEGA12:
535 case CHIP_VEGA20:
536 return 0;
537 case CHIP_RAVEN:
538 fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
539 break;
540 default:
541 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
542 return -EINVAL;
543 }
544
545 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
546 DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n");
547 return 0;
548 }
549
550 r = request_firmware_direct(&adev->dm.fw_dmcu, fw_name_dmcu, adev->dev);
551 if (r == -ENOENT) {
552 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */
553 DRM_DEBUG_KMS("dm: DMCU firmware not found\n");
554 adev->dm.fw_dmcu = NULL;
555 return 0;
556 }
557 if (r) {
558 dev_err(adev->dev, "amdgpu_dm: Can't load firmware \"%s\"\n",
559 fw_name_dmcu);
560 return r;
561 }
562
563 r = amdgpu_ucode_validate(adev->dm.fw_dmcu);
564 if (r) {
565 dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n",
566 fw_name_dmcu);
567 release_firmware(adev->dm.fw_dmcu);
568 adev->dm.fw_dmcu = NULL;
569 return r;
570 }
571
572 hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data;
573 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM;
574 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu;
575 adev->firmware.fw_size +=
576 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
577
578 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV;
579 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu;
580 adev->firmware.fw_size +=
581 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
582
583 adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version);
584
585 DRM_DEBUG_KMS("PSP loading DMCU firmware\n");
586
587 return 0;
588 }
589
590 static int dm_sw_init(void *handle)
591 {
592 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
593
594 return load_dmcu_fw(adev);
595 }
596
597 static int dm_sw_fini(void *handle)
598 {
599 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
600
601 if(adev->dm.fw_dmcu) {
602 release_firmware(adev->dm.fw_dmcu);
603 adev->dm.fw_dmcu = NULL;
604 }
605
606 return 0;
607 }
608
609 static int detect_mst_link_for_all_connectors(struct drm_device *dev)
610 {
611 struct amdgpu_dm_connector *aconnector;
612 struct drm_connector *connector;
613 int ret = 0;
614
615 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
616
617 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
618 aconnector = to_amdgpu_dm_connector(connector);
619 if (aconnector->dc_link->type == dc_connection_mst_branch &&
620 aconnector->mst_mgr.aux) {
621 DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n",
622 aconnector, aconnector->base.base.id);
623
624 ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
625 if (ret < 0) {
626 DRM_ERROR("DM_MST: Failed to start MST\n");
627 ((struct dc_link *)aconnector->dc_link)->type = dc_connection_single;
628 return ret;
629 }
630 }
631 }
632
633 drm_modeset_unlock(&dev->mode_config.connection_mutex);
634 return ret;
635 }
636
637 static int dm_late_init(void *handle)
638 {
639 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
640
641 return detect_mst_link_for_all_connectors(adev->ddev);
642 }
643
644 static void s3_handle_mst(struct drm_device *dev, bool suspend)
645 {
646 struct amdgpu_dm_connector *aconnector;
647 struct drm_connector *connector;
648
649 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
650
651 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
652 aconnector = to_amdgpu_dm_connector(connector);
653 if (aconnector->dc_link->type == dc_connection_mst_branch &&
654 !aconnector->mst_port) {
655
656 if (suspend)
657 drm_dp_mst_topology_mgr_suspend(&aconnector->mst_mgr);
658 else
659 drm_dp_mst_topology_mgr_resume(&aconnector->mst_mgr);
660 }
661 }
662
663 drm_modeset_unlock(&dev->mode_config.connection_mutex);
664 }
665
666 static int dm_hw_init(void *handle)
667 {
668 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
669 /* Create DAL display manager */
670 amdgpu_dm_init(adev);
671 amdgpu_dm_hpd_init(adev);
672
673 return 0;
674 }
675
676 static int dm_hw_fini(void *handle)
677 {
678 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
679
680 amdgpu_dm_hpd_fini(adev);
681
682 amdgpu_dm_irq_fini(adev);
683 amdgpu_dm_fini(adev);
684 return 0;
685 }
686
687 static int dm_suspend(void *handle)
688 {
689 struct amdgpu_device *adev = handle;
690 struct amdgpu_display_manager *dm = &adev->dm;
691 int ret = 0;
692
693 s3_handle_mst(adev->ddev, true);
694
695 amdgpu_dm_irq_suspend(adev);
696
697 WARN_ON(adev->dm.cached_state);
698 adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev);
699
700 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
701
702 return ret;
703 }
704
705 static struct amdgpu_dm_connector *
706 amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
707 struct drm_crtc *crtc)
708 {
709 uint32_t i;
710 struct drm_connector_state *new_con_state;
711 struct drm_connector *connector;
712 struct drm_crtc *crtc_from_state;
713
714 for_each_new_connector_in_state(state, connector, new_con_state, i) {
715 crtc_from_state = new_con_state->crtc;
716
717 if (crtc_from_state == crtc)
718 return to_amdgpu_dm_connector(connector);
719 }
720
721 return NULL;
722 }
723
724 static void emulated_link_detect(struct dc_link *link)
725 {
726 struct dc_sink_init_data sink_init_data = { 0 };
727 struct display_sink_capability sink_caps = { 0 };
728 enum dc_edid_status edid_status;
729 struct dc_context *dc_ctx = link->ctx;
730 struct dc_sink *sink = NULL;
731 struct dc_sink *prev_sink = NULL;
732
733 link->type = dc_connection_none;
734 prev_sink = link->local_sink;
735
736 if (prev_sink != NULL)
737 dc_sink_retain(prev_sink);
738
739 switch (link->connector_signal) {
740 case SIGNAL_TYPE_HDMI_TYPE_A: {
741 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
742 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A;
743 break;
744 }
745
746 case SIGNAL_TYPE_DVI_SINGLE_LINK: {
747 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
748 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
749 break;
750 }
751
752 case SIGNAL_TYPE_DVI_DUAL_LINK: {
753 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
754 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK;
755 break;
756 }
757
758 case SIGNAL_TYPE_LVDS: {
759 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
760 sink_caps.signal = SIGNAL_TYPE_LVDS;
761 break;
762 }
763
764 case SIGNAL_TYPE_EDP: {
765 sink_caps.transaction_type =
766 DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
767 sink_caps.signal = SIGNAL_TYPE_EDP;
768 break;
769 }
770
771 case SIGNAL_TYPE_DISPLAY_PORT: {
772 sink_caps.transaction_type =
773 DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
774 sink_caps.signal = SIGNAL_TYPE_VIRTUAL;
775 break;
776 }
777
778 default:
779 DC_ERROR("Invalid connector type! signal:%d\n",
780 link->connector_signal);
781 return;
782 }
783
784 sink_init_data.link = link;
785 sink_init_data.sink_signal = sink_caps.signal;
786
787 sink = dc_sink_create(&sink_init_data);
788 if (!sink) {
789 DC_ERROR("Failed to create sink!\n");
790 return;
791 }
792
793 link->local_sink = sink;
794
795 edid_status = dm_helpers_read_local_edid(
796 link->ctx,
797 link,
798 sink);
799
800 if (edid_status != EDID_OK)
801 DC_ERROR("Failed to read EDID");
802
803 }
804
805 static int dm_resume(void *handle)
806 {
807 struct amdgpu_device *adev = handle;
808 struct drm_device *ddev = adev->ddev;
809 struct amdgpu_display_manager *dm = &adev->dm;
810 struct amdgpu_dm_connector *aconnector;
811 struct drm_connector *connector;
812 struct drm_crtc *crtc;
813 struct drm_crtc_state *new_crtc_state;
814 struct dm_crtc_state *dm_new_crtc_state;
815 struct drm_plane *plane;
816 struct drm_plane_state *new_plane_state;
817 struct dm_plane_state *dm_new_plane_state;
818 enum dc_connection_type new_connection_type = dc_connection_none;
819 int ret;
820 int i;
821
822 /* power on hardware */
823 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
824
825 /* program HPD filter */
826 dc_resume(dm->dc);
827
828 /* On resume we need to rewrite the MSTM control bits to enamble MST*/
829 s3_handle_mst(ddev, false);
830
831 /*
832 * early enable HPD Rx IRQ, should be done before set mode as short
833 * pulse interrupts are used for MST
834 */
835 amdgpu_dm_irq_resume_early(adev);
836
837 /* Do detection*/
838 list_for_each_entry(connector, &ddev->mode_config.connector_list, head) {
839 aconnector = to_amdgpu_dm_connector(connector);
840
841 /*
842 * this is the case when traversing through already created
843 * MST connectors, should be skipped
844 */
845 if (aconnector->mst_port)
846 continue;
847
848 mutex_lock(&aconnector->hpd_lock);
849 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
850 DRM_ERROR("KMS: Failed to detect connector\n");
851
852 if (aconnector->base.force && new_connection_type == dc_connection_none)
853 emulated_link_detect(aconnector->dc_link);
854 else
855 dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
856
857 if (aconnector->fake_enable && aconnector->dc_link->local_sink)
858 aconnector->fake_enable = false;
859
860 aconnector->dc_sink = NULL;
861 amdgpu_dm_update_connector_after_detect(aconnector);
862 mutex_unlock(&aconnector->hpd_lock);
863 }
864
865 /* Force mode set in atomic commit */
866 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i)
867 new_crtc_state->active_changed = true;
868
869 /*
870 * atomic_check is expected to create the dc states. We need to release
871 * them here, since they were duplicated as part of the suspend
872 * procedure.
873 */
874 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) {
875 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
876 if (dm_new_crtc_state->stream) {
877 WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1);
878 dc_stream_release(dm_new_crtc_state->stream);
879 dm_new_crtc_state->stream = NULL;
880 }
881 }
882
883 for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) {
884 dm_new_plane_state = to_dm_plane_state(new_plane_state);
885 if (dm_new_plane_state->dc_state) {
886 WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1);
887 dc_plane_state_release(dm_new_plane_state->dc_state);
888 dm_new_plane_state->dc_state = NULL;
889 }
890 }
891
892 ret = drm_atomic_helper_resume(ddev, dm->cached_state);
893
894 dm->cached_state = NULL;
895
896 amdgpu_dm_irq_resume_late(adev);
897
898 return ret;
899 }
900
901 static const struct amd_ip_funcs amdgpu_dm_funcs = {
902 .name = "dm",
903 .early_init = dm_early_init,
904 .late_init = dm_late_init,
905 .sw_init = dm_sw_init,
906 .sw_fini = dm_sw_fini,
907 .hw_init = dm_hw_init,
908 .hw_fini = dm_hw_fini,
909 .suspend = dm_suspend,
910 .resume = dm_resume,
911 .is_idle = dm_is_idle,
912 .wait_for_idle = dm_wait_for_idle,
913 .check_soft_reset = dm_check_soft_reset,
914 .soft_reset = dm_soft_reset,
915 .set_clockgating_state = dm_set_clockgating_state,
916 .set_powergating_state = dm_set_powergating_state,
917 };
918
919 const struct amdgpu_ip_block_version dm_ip_block =
920 {
921 .type = AMD_IP_BLOCK_TYPE_DCE,
922 .major = 1,
923 .minor = 0,
924 .rev = 0,
925 .funcs = &amdgpu_dm_funcs,
926 };
927
928
929 static struct drm_atomic_state *
930 dm_atomic_state_alloc(struct drm_device *dev)
931 {
932 struct dm_atomic_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
933
934 if (!state)
935 return NULL;
936
937 if (drm_atomic_state_init(dev, &state->base) < 0)
938 goto fail;
939
940 return &state->base;
941
942 fail:
943 kfree(state);
944 return NULL;
945 }
946
947 static void
948 dm_atomic_state_clear(struct drm_atomic_state *state)
949 {
950 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
951
952 if (dm_state->context) {
953 dc_release_state(dm_state->context);
954 dm_state->context = NULL;
955 }
956
957 drm_atomic_state_default_clear(state);
958 }
959
960 static void
961 dm_atomic_state_alloc_free(struct drm_atomic_state *state)
962 {
963 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
964 drm_atomic_state_default_release(state);
965 kfree(dm_state);
966 }
967
968 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = {
969 .fb_create = amdgpu_display_user_framebuffer_create,
970 .output_poll_changed = drm_fb_helper_output_poll_changed,
971 .atomic_check = amdgpu_dm_atomic_check,
972 .atomic_commit = amdgpu_dm_atomic_commit,
973 .atomic_state_alloc = dm_atomic_state_alloc,
974 .atomic_state_clear = dm_atomic_state_clear,
975 .atomic_state_free = dm_atomic_state_alloc_free
976 };
977
978 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
979 .atomic_commit_tail = amdgpu_dm_atomic_commit_tail
980 };
981
982 static void
983 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector)
984 {
985 struct drm_connector *connector = &aconnector->base;
986 struct drm_device *dev = connector->dev;
987 struct dc_sink *sink;
988
989 /* MST handled by drm_mst framework */
990 if (aconnector->mst_mgr.mst_state == true)
991 return;
992
993
994 sink = aconnector->dc_link->local_sink;
995
996 /*
997 * Edid mgmt connector gets first update only in mode_valid hook and then
998 * the connector sink is set to either fake or physical sink depends on link status.
999 * Skip if already done during boot.
1000 */
1001 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED
1002 && aconnector->dc_em_sink) {
1003
1004 /*
1005 * For S3 resume with headless use eml_sink to fake stream
1006 * because on resume connector->sink is set to NULL
1007 */
1008 mutex_lock(&dev->mode_config.mutex);
1009
1010 if (sink) {
1011 if (aconnector->dc_sink) {
1012 amdgpu_dm_update_freesync_caps(connector, NULL);
1013 /*
1014 * retain and release below are used to
1015 * bump up refcount for sink because the link doesn't point
1016 * to it anymore after disconnect, so on next crtc to connector
1017 * reshuffle by UMD we will get into unwanted dc_sink release
1018 */
1019 if (aconnector->dc_sink != aconnector->dc_em_sink)
1020 dc_sink_release(aconnector->dc_sink);
1021 }
1022 aconnector->dc_sink = sink;
1023 amdgpu_dm_update_freesync_caps(connector,
1024 aconnector->edid);
1025 } else {
1026 amdgpu_dm_update_freesync_caps(connector, NULL);
1027 if (!aconnector->dc_sink)
1028 aconnector->dc_sink = aconnector->dc_em_sink;
1029 else if (aconnector->dc_sink != aconnector->dc_em_sink)
1030 dc_sink_retain(aconnector->dc_sink);
1031 }
1032
1033 mutex_unlock(&dev->mode_config.mutex);
1034 return;
1035 }
1036
1037 /*
1038 * TODO: temporary guard to look for proper fix
1039 * if this sink is MST sink, we should not do anything
1040 */
1041 if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
1042 return;
1043
1044 if (aconnector->dc_sink == sink) {
1045 /*
1046 * We got a DP short pulse (Link Loss, DP CTS, etc...).
1047 * Do nothing!!
1048 */
1049 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n",
1050 aconnector->connector_id);
1051 return;
1052 }
1053
1054 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n",
1055 aconnector->connector_id, aconnector->dc_sink, sink);
1056
1057 mutex_lock(&dev->mode_config.mutex);
1058
1059 /*
1060 * 1. Update status of the drm connector
1061 * 2. Send an event and let userspace tell us what to do
1062 */
1063 if (sink) {
1064 /*
1065 * TODO: check if we still need the S3 mode update workaround.
1066 * If yes, put it here.
1067 */
1068 if (aconnector->dc_sink)
1069 amdgpu_dm_update_freesync_caps(connector, NULL);
1070
1071 aconnector->dc_sink = sink;
1072 if (sink->dc_edid.length == 0) {
1073 aconnector->edid = NULL;
1074 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
1075 } else {
1076 aconnector->edid =
1077 (struct edid *) sink->dc_edid.raw_edid;
1078
1079
1080 drm_connector_update_edid_property(connector,
1081 aconnector->edid);
1082 drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
1083 aconnector->edid);
1084 }
1085 amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
1086
1087 } else {
1088 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
1089 amdgpu_dm_update_freesync_caps(connector, NULL);
1090 drm_connector_update_edid_property(connector, NULL);
1091 aconnector->num_modes = 0;
1092 aconnector->dc_sink = NULL;
1093 aconnector->edid = NULL;
1094 }
1095
1096 mutex_unlock(&dev->mode_config.mutex);
1097 }
1098
1099 static void handle_hpd_irq(void *param)
1100 {
1101 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
1102 struct drm_connector *connector = &aconnector->base;
1103 struct drm_device *dev = connector->dev;
1104 enum dc_connection_type new_connection_type = dc_connection_none;
1105
1106 /*
1107 * In case of failure or MST no need to update connector status or notify the OS
1108 * since (for MST case) MST does this in its own context.
1109 */
1110 mutex_lock(&aconnector->hpd_lock);
1111
1112 if (aconnector->fake_enable)
1113 aconnector->fake_enable = false;
1114
1115 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
1116 DRM_ERROR("KMS: Failed to detect connector\n");
1117
1118 if (aconnector->base.force && new_connection_type == dc_connection_none) {
1119 emulated_link_detect(aconnector->dc_link);
1120
1121
1122 drm_modeset_lock_all(dev);
1123 dm_restore_drm_connector_state(dev, connector);
1124 drm_modeset_unlock_all(dev);
1125
1126 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
1127 drm_kms_helper_hotplug_event(dev);
1128
1129 } else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
1130 amdgpu_dm_update_connector_after_detect(aconnector);
1131
1132
1133 drm_modeset_lock_all(dev);
1134 dm_restore_drm_connector_state(dev, connector);
1135 drm_modeset_unlock_all(dev);
1136
1137 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
1138 drm_kms_helper_hotplug_event(dev);
1139 }
1140 mutex_unlock(&aconnector->hpd_lock);
1141
1142 }
1143
1144 static void dm_handle_hpd_rx_irq(struct amdgpu_dm_connector *aconnector)
1145 {
1146 uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
1147 uint8_t dret;
1148 bool new_irq_handled = false;
1149 int dpcd_addr;
1150 int dpcd_bytes_to_read;
1151
1152 const int max_process_count = 30;
1153 int process_count = 0;
1154
1155 const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
1156
1157 if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
1158 dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
1159 /* DPCD 0x200 - 0x201 for downstream IRQ */
1160 dpcd_addr = DP_SINK_COUNT;
1161 } else {
1162 dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
1163 /* DPCD 0x2002 - 0x2005 for downstream IRQ */
1164 dpcd_addr = DP_SINK_COUNT_ESI;
1165 }
1166
1167 dret = drm_dp_dpcd_read(
1168 &aconnector->dm_dp_aux.aux,
1169 dpcd_addr,
1170 esi,
1171 dpcd_bytes_to_read);
1172
1173 while (dret == dpcd_bytes_to_read &&
1174 process_count < max_process_count) {
1175 uint8_t retry;
1176 dret = 0;
1177
1178 process_count++;
1179
1180 DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
1181 /* handle HPD short pulse irq */
1182 if (aconnector->mst_mgr.mst_state)
1183 drm_dp_mst_hpd_irq(
1184 &aconnector->mst_mgr,
1185 esi,
1186 &new_irq_handled);
1187
1188 if (new_irq_handled) {
1189 /* ACK at DPCD to notify down stream */
1190 const int ack_dpcd_bytes_to_write =
1191 dpcd_bytes_to_read - 1;
1192
1193 for (retry = 0; retry < 3; retry++) {
1194 uint8_t wret;
1195
1196 wret = drm_dp_dpcd_write(
1197 &aconnector->dm_dp_aux.aux,
1198 dpcd_addr + 1,
1199 &esi[1],
1200 ack_dpcd_bytes_to_write);
1201 if (wret == ack_dpcd_bytes_to_write)
1202 break;
1203 }
1204
1205 /* check if there is new irq to be handled */
1206 dret = drm_dp_dpcd_read(
1207 &aconnector->dm_dp_aux.aux,
1208 dpcd_addr,
1209 esi,
1210 dpcd_bytes_to_read);
1211
1212 new_irq_handled = false;
1213 } else {
1214 break;
1215 }
1216 }
1217
1218 if (process_count == max_process_count)
1219 DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
1220 }
1221
1222 static void handle_hpd_rx_irq(void *param)
1223 {
1224 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
1225 struct drm_connector *connector = &aconnector->base;
1226 struct drm_device *dev = connector->dev;
1227 struct dc_link *dc_link = aconnector->dc_link;
1228 bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
1229 enum dc_connection_type new_connection_type = dc_connection_none;
1230
1231 /*
1232 * TODO:Temporary add mutex to protect hpd interrupt not have a gpio
1233 * conflict, after implement i2c helper, this mutex should be
1234 * retired.
1235 */
1236 if (dc_link->type != dc_connection_mst_branch)
1237 mutex_lock(&aconnector->hpd_lock);
1238
1239 if (dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL) &&
1240 !is_mst_root_connector) {
1241 /* Downstream Port status changed. */
1242 if (!dc_link_detect_sink(dc_link, &new_connection_type))
1243 DRM_ERROR("KMS: Failed to detect connector\n");
1244
1245 if (aconnector->base.force && new_connection_type == dc_connection_none) {
1246 emulated_link_detect(dc_link);
1247
1248 if (aconnector->fake_enable)
1249 aconnector->fake_enable = false;
1250
1251 amdgpu_dm_update_connector_after_detect(aconnector);
1252
1253
1254 drm_modeset_lock_all(dev);
1255 dm_restore_drm_connector_state(dev, connector);
1256 drm_modeset_unlock_all(dev);
1257
1258 drm_kms_helper_hotplug_event(dev);
1259 } else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) {
1260
1261 if (aconnector->fake_enable)
1262 aconnector->fake_enable = false;
1263
1264 amdgpu_dm_update_connector_after_detect(aconnector);
1265
1266
1267 drm_modeset_lock_all(dev);
1268 dm_restore_drm_connector_state(dev, connector);
1269 drm_modeset_unlock_all(dev);
1270
1271 drm_kms_helper_hotplug_event(dev);
1272 }
1273 }
1274 if ((dc_link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) ||
1275 (dc_link->type == dc_connection_mst_branch))
1276 dm_handle_hpd_rx_irq(aconnector);
1277
1278 if (dc_link->type != dc_connection_mst_branch) {
1279 drm_dp_cec_irq(&aconnector->dm_dp_aux.aux);
1280 mutex_unlock(&aconnector->hpd_lock);
1281 }
1282 }
1283
1284 static void register_hpd_handlers(struct amdgpu_device *adev)
1285 {
1286 struct drm_device *dev = adev->ddev;
1287 struct drm_connector *connector;
1288 struct amdgpu_dm_connector *aconnector;
1289 const struct dc_link *dc_link;
1290 struct dc_interrupt_params int_params = {0};
1291
1292 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
1293 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
1294
1295 list_for_each_entry(connector,
1296 &dev->mode_config.connector_list, head) {
1297
1298 aconnector = to_amdgpu_dm_connector(connector);
1299 dc_link = aconnector->dc_link;
1300
1301 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) {
1302 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
1303 int_params.irq_source = dc_link->irq_source_hpd;
1304
1305 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1306 handle_hpd_irq,
1307 (void *) aconnector);
1308 }
1309
1310 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) {
1311
1312 /* Also register for DP short pulse (hpd_rx). */
1313 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
1314 int_params.irq_source = dc_link->irq_source_hpd_rx;
1315
1316 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1317 handle_hpd_rx_irq,
1318 (void *) aconnector);
1319 }
1320 }
1321 }
1322
1323 /* Register IRQ sources and initialize IRQ callbacks */
1324 static int dce110_register_irq_handlers(struct amdgpu_device *adev)
1325 {
1326 struct dc *dc = adev->dm.dc;
1327 struct common_irq_params *c_irq_params;
1328 struct dc_interrupt_params int_params = {0};
1329 int r;
1330 int i;
1331 unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
1332
1333 if (adev->asic_type == CHIP_VEGA10 ||
1334 adev->asic_type == CHIP_VEGA12 ||
1335 adev->asic_type == CHIP_VEGA20 ||
1336 adev->asic_type == CHIP_RAVEN)
1337 client_id = SOC15_IH_CLIENTID_DCE;
1338
1339 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
1340 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
1341
1342 /*
1343 * Actions of amdgpu_irq_add_id():
1344 * 1. Register a set() function with base driver.
1345 * Base driver will call set() function to enable/disable an
1346 * interrupt in DC hardware.
1347 * 2. Register amdgpu_dm_irq_handler().
1348 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
1349 * coming from DC hardware.
1350 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
1351 * for acknowledging and handling. */
1352
1353 /* Use VBLANK interrupt */
1354 for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
1355 r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq);
1356 if (r) {
1357 DRM_ERROR("Failed to add crtc irq id!\n");
1358 return r;
1359 }
1360
1361 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
1362 int_params.irq_source =
1363 dc_interrupt_to_irq_source(dc, i, 0);
1364
1365 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
1366
1367 c_irq_params->adev = adev;
1368 c_irq_params->irq_src = int_params.irq_source;
1369
1370 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1371 dm_crtc_high_irq, c_irq_params);
1372 }
1373
1374 /* Use GRPH_PFLIP interrupt */
1375 for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
1376 i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
1377 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
1378 if (r) {
1379 DRM_ERROR("Failed to add page flip irq id!\n");
1380 return r;
1381 }
1382
1383 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
1384 int_params.irq_source =
1385 dc_interrupt_to_irq_source(dc, i, 0);
1386
1387 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
1388
1389 c_irq_params->adev = adev;
1390 c_irq_params->irq_src = int_params.irq_source;
1391
1392 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1393 dm_pflip_high_irq, c_irq_params);
1394
1395 }
1396
1397 /* HPD */
1398 r = amdgpu_irq_add_id(adev, client_id,
1399 VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
1400 if (r) {
1401 DRM_ERROR("Failed to add hpd irq id!\n");
1402 return r;
1403 }
1404
1405 register_hpd_handlers(adev);
1406
1407 return 0;
1408 }
1409
1410 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
1411 /* Register IRQ sources and initialize IRQ callbacks */
1412 static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
1413 {
1414 struct dc *dc = adev->dm.dc;
1415 struct common_irq_params *c_irq_params;
1416 struct dc_interrupt_params int_params = {0};
1417 int r;
1418 int i;
1419
1420 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
1421 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
1422
1423 /*
1424 * Actions of amdgpu_irq_add_id():
1425 * 1. Register a set() function with base driver.
1426 * Base driver will call set() function to enable/disable an
1427 * interrupt in DC hardware.
1428 * 2. Register amdgpu_dm_irq_handler().
1429 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
1430 * coming from DC hardware.
1431 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
1432 * for acknowledging and handling.
1433 */
1434
1435 /* Use VSTARTUP interrupt */
1436 for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP;
1437 i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1;
1438 i++) {
1439 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq);
1440
1441 if (r) {
1442 DRM_ERROR("Failed to add crtc irq id!\n");
1443 return r;
1444 }
1445
1446 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
1447 int_params.irq_source =
1448 dc_interrupt_to_irq_source(dc, i, 0);
1449
1450 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
1451
1452 c_irq_params->adev = adev;
1453 c_irq_params->irq_src = int_params.irq_source;
1454
1455 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1456 dm_crtc_high_irq, c_irq_params);
1457 }
1458
1459 /* Use GRPH_PFLIP interrupt */
1460 for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
1461 i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1;
1462 i++) {
1463 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
1464 if (r) {
1465 DRM_ERROR("Failed to add page flip irq id!\n");
1466 return r;
1467 }
1468
1469 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
1470 int_params.irq_source =
1471 dc_interrupt_to_irq_source(dc, i, 0);
1472
1473 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
1474
1475 c_irq_params->adev = adev;
1476 c_irq_params->irq_src = int_params.irq_source;
1477
1478 amdgpu_dm_irq_register_interrupt(adev, &int_params,
1479 dm_pflip_high_irq, c_irq_params);
1480
1481 }
1482
1483 /* HPD */
1484 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT,
1485 &adev->hpd_irq);
1486 if (r) {
1487 DRM_ERROR("Failed to add hpd irq id!\n");
1488 return r;
1489 }
1490
1491 register_hpd_handlers(adev);
1492
1493 return 0;
1494 }
1495 #endif
1496
1497 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
1498 {
1499 int r;
1500
1501 adev->mode_info.mode_config_initialized = true;
1502
1503 adev->ddev->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs;
1504 adev->ddev->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs;
1505
1506 adev->ddev->mode_config.max_width = 16384;
1507 adev->ddev->mode_config.max_height = 16384;
1508
1509 adev->ddev->mode_config.preferred_depth = 24;
1510 adev->ddev->mode_config.prefer_shadow = 1;
1511 /* indicates support for immediate flip */
1512 adev->ddev->mode_config.async_page_flip = true;
1513
1514 adev->ddev->mode_config.fb_base = adev->gmc.aper_base;
1515
1516 r = amdgpu_display_modeset_create_props(adev);
1517 if (r)
1518 return r;
1519
1520 return 0;
1521 }
1522
1523 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
1524 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
1525
1526 static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
1527 {
1528 struct amdgpu_display_manager *dm = bl_get_data(bd);
1529
1530 if (dc_link_set_backlight_level(dm->backlight_link,
1531 bd->props.brightness, 0, 0))
1532 return 0;
1533 else
1534 return 1;
1535 }
1536
1537 static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
1538 {
1539 struct amdgpu_display_manager *dm = bl_get_data(bd);
1540 int ret = dc_link_get_backlight_level(dm->backlight_link);
1541
1542 if (ret == DC_ERROR_UNEXPECTED)
1543 return bd->props.brightness;
1544 return ret;
1545 }
1546
1547 static const struct backlight_ops amdgpu_dm_backlight_ops = {
1548 .get_brightness = amdgpu_dm_backlight_get_brightness,
1549 .update_status = amdgpu_dm_backlight_update_status,
1550 };
1551
1552 static void
1553 amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
1554 {
1555 char bl_name[16];
1556 struct backlight_properties props = { 0 };
1557
1558 props.max_brightness = AMDGPU_MAX_BL_LEVEL;
1559 props.brightness = AMDGPU_MAX_BL_LEVEL;
1560 props.type = BACKLIGHT_RAW;
1561
1562 snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d",
1563 dm->adev->ddev->primary->index);
1564
1565 dm->backlight_dev = backlight_device_register(bl_name,
1566 dm->adev->ddev->dev,
1567 dm,
1568 &amdgpu_dm_backlight_ops,
1569 &props);
1570
1571 if (IS_ERR(dm->backlight_dev))
1572 DRM_ERROR("DM: Backlight registration failed!\n");
1573 else
1574 DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
1575 }
1576
1577 #endif
1578
1579 static int initialize_plane(struct amdgpu_display_manager *dm,
1580 struct amdgpu_mode_info *mode_info,
1581 int plane_id)
1582 {
1583 struct amdgpu_plane *plane;
1584 unsigned long possible_crtcs;
1585 int ret = 0;
1586
1587 plane = kzalloc(sizeof(struct amdgpu_plane), GFP_KERNEL);
1588 mode_info->planes[plane_id] = plane;
1589
1590 if (!plane) {
1591 DRM_ERROR("KMS: Failed to allocate plane\n");
1592 return -ENOMEM;
1593 }
1594 plane->base.type = mode_info->plane_type[plane_id];
1595
1596 /*
1597 * HACK: IGT tests expect that each plane can only have
1598 * one possible CRTC. For now, set one CRTC for each
1599 * plane that is not an underlay, but still allow multiple
1600 * CRTCs for underlay planes.
1601 */
1602 possible_crtcs = 1 << plane_id;
1603 if (plane_id >= dm->dc->caps.max_streams)
1604 possible_crtcs = 0xff;
1605
1606 ret = amdgpu_dm_plane_init(dm, mode_info->planes[plane_id], possible_crtcs);
1607
1608 if (ret) {
1609 DRM_ERROR("KMS: Failed to initialize plane\n");
1610 return ret;
1611 }
1612
1613 return ret;
1614 }
1615
1616
1617 static void register_backlight_device(struct amdgpu_display_manager *dm,
1618 struct dc_link *link)
1619 {
1620 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
1621 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
1622
1623 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
1624 link->type != dc_connection_none) {
1625 /*
1626 * Event if registration failed, we should continue with
1627 * DM initialization because not having a backlight control
1628 * is better then a black screen.
1629 */
1630 amdgpu_dm_register_backlight_device(dm);
1631
1632 if (dm->backlight_dev)
1633 dm->backlight_link = link;
1634 }
1635 #endif
1636 }
1637
1638
1639 /*
1640 * In this architecture, the association
1641 * connector -> encoder -> crtc
1642 * id not really requried. The crtc and connector will hold the
1643 * display_index as an abstraction to use with DAL component
1644 *
1645 * Returns 0 on success
1646 */
1647 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
1648 {
1649 struct amdgpu_display_manager *dm = &adev->dm;
1650 int32_t i;
1651 struct amdgpu_dm_connector *aconnector = NULL;
1652 struct amdgpu_encoder *aencoder = NULL;
1653 struct amdgpu_mode_info *mode_info = &adev->mode_info;
1654 uint32_t link_cnt;
1655 int32_t total_overlay_planes, total_primary_planes;
1656 enum dc_connection_type new_connection_type = dc_connection_none;
1657
1658 link_cnt = dm->dc->caps.max_links;
1659 if (amdgpu_dm_mode_config_init(dm->adev)) {
1660 DRM_ERROR("DM: Failed to initialize mode config\n");
1661 return -EINVAL;
1662 }
1663
1664 /* Identify the number of planes to be initialized */
1665 total_overlay_planes = dm->dc->caps.max_slave_planes;
1666 total_primary_planes = dm->dc->caps.max_planes - dm->dc->caps.max_slave_planes;
1667
1668 /* First initialize overlay planes, index starting after primary planes */
1669 for (i = (total_overlay_planes - 1); i >= 0; i--) {
1670 if (initialize_plane(dm, mode_info, (total_primary_planes + i))) {
1671 DRM_ERROR("KMS: Failed to initialize overlay plane\n");
1672 goto fail;
1673 }
1674 }
1675
1676 /* Initialize primary planes */
1677 for (i = (total_primary_planes - 1); i >= 0; i--) {
1678 if (initialize_plane(dm, mode_info, i)) {
1679 DRM_ERROR("KMS: Failed to initialize primary plane\n");
1680 goto fail;
1681 }
1682 }
1683
1684 for (i = 0; i < dm->dc->caps.max_streams; i++)
1685 if (amdgpu_dm_crtc_init(dm, &mode_info->planes[i]->base, i)) {
1686 DRM_ERROR("KMS: Failed to initialize crtc\n");
1687 goto fail;
1688 }
1689
1690 dm->display_indexes_num = dm->dc->caps.max_streams;
1691
1692 /* loops over all connectors on the board */
1693 for (i = 0; i < link_cnt; i++) {
1694 struct dc_link *link = NULL;
1695
1696 if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
1697 DRM_ERROR(
1698 "KMS: Cannot support more than %d display indexes\n",
1699 AMDGPU_DM_MAX_DISPLAY_INDEX);
1700 continue;
1701 }
1702
1703 aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
1704 if (!aconnector)
1705 goto fail;
1706
1707 aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL);
1708 if (!aencoder)
1709 goto fail;
1710
1711 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) {
1712 DRM_ERROR("KMS: Failed to initialize encoder\n");
1713 goto fail;
1714 }
1715
1716 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) {
1717 DRM_ERROR("KMS: Failed to initialize connector\n");
1718 goto fail;
1719 }
1720
1721 link = dc_get_link_at_index(dm->dc, i);
1722
1723 if (!dc_link_detect_sink(link, &new_connection_type))
1724 DRM_ERROR("KMS: Failed to detect connector\n");
1725
1726 if (aconnector->base.force && new_connection_type == dc_connection_none) {
1727 emulated_link_detect(link);
1728 amdgpu_dm_update_connector_after_detect(aconnector);
1729
1730 } else if (dc_link_detect(link, DETECT_REASON_BOOT)) {
1731 amdgpu_dm_update_connector_after_detect(aconnector);
1732 register_backlight_device(dm, link);
1733 }
1734
1735
1736 }
1737
1738 /* Software is initialized. Now we can register interrupt handlers. */
1739 switch (adev->asic_type) {
1740 case CHIP_BONAIRE:
1741 case CHIP_HAWAII:
1742 case CHIP_KAVERI:
1743 case CHIP_KABINI:
1744 case CHIP_MULLINS:
1745 case CHIP_TONGA:
1746 case CHIP_FIJI:
1747 case CHIP_CARRIZO:
1748 case CHIP_STONEY:
1749 case CHIP_POLARIS11:
1750 case CHIP_POLARIS10:
1751 case CHIP_POLARIS12:
1752 case CHIP_VEGAM:
1753 case CHIP_VEGA10:
1754 case CHIP_VEGA12:
1755 case CHIP_VEGA20:
1756 if (dce110_register_irq_handlers(dm->adev)) {
1757 DRM_ERROR("DM: Failed to initialize IRQ\n");
1758 goto fail;
1759 }
1760 break;
1761 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
1762 case CHIP_RAVEN:
1763 if (dcn10_register_irq_handlers(dm->adev)) {
1764 DRM_ERROR("DM: Failed to initialize IRQ\n");
1765 goto fail;
1766 }
1767 break;
1768 #endif
1769 default:
1770 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
1771 goto fail;
1772 }
1773
1774 if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY)
1775 dm->dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true;
1776
1777 return 0;
1778 fail:
1779 kfree(aencoder);
1780 kfree(aconnector);
1781 for (i = 0; i < dm->dc->caps.max_planes; i++)
1782 kfree(mode_info->planes[i]);
1783 return -EINVAL;
1784 }
1785
1786 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
1787 {
1788 drm_mode_config_cleanup(dm->ddev);
1789 return;
1790 }
1791
1792 /******************************************************************************
1793 * amdgpu_display_funcs functions
1794 *****************************************************************************/
1795
1796 /*
1797 * dm_bandwidth_update - program display watermarks
1798 *
1799 * @adev: amdgpu_device pointer
1800 *
1801 * Calculate and program the display watermarks and line buffer allocation.
1802 */
1803 static void dm_bandwidth_update(struct amdgpu_device *adev)
1804 {
1805 /* TODO: implement later */
1806 }
1807
1808 static int amdgpu_notify_freesync(struct drm_device *dev, void *data,
1809 struct drm_file *filp)
1810 {
1811 struct drm_atomic_state *state;
1812 struct drm_modeset_acquire_ctx ctx;
1813 struct drm_crtc *crtc;
1814 struct drm_connector *connector;
1815 struct drm_connector_state *old_con_state, *new_con_state;
1816 int ret = 0;
1817 uint8_t i;
1818 bool enable = false;
1819
1820 drm_modeset_acquire_init(&ctx, 0);
1821
1822 state = drm_atomic_state_alloc(dev);
1823 if (!state) {
1824 ret = -ENOMEM;
1825 goto out;
1826 }
1827 state->acquire_ctx = &ctx;
1828
1829 retry:
1830 drm_for_each_crtc(crtc, dev) {
1831 ret = drm_atomic_add_affected_connectors(state, crtc);
1832 if (ret)
1833 goto fail;
1834
1835 /* TODO rework amdgpu_dm_commit_planes so we don't need this */
1836 ret = drm_atomic_add_affected_planes(state, crtc);
1837 if (ret)
1838 goto fail;
1839 }
1840
1841 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
1842 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
1843 struct drm_crtc_state *new_crtc_state;
1844 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
1845 struct dm_crtc_state *dm_new_crtc_state;
1846
1847 if (!acrtc) {
1848 ASSERT(0);
1849 continue;
1850 }
1851
1852 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
1853 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
1854
1855 dm_new_crtc_state->freesync_enabled = enable;
1856 }
1857
1858 ret = drm_atomic_commit(state);
1859
1860 fail:
1861 if (ret == -EDEADLK) {
1862 drm_atomic_state_clear(state);
1863 drm_modeset_backoff(&ctx);
1864 goto retry;
1865 }
1866
1867 drm_atomic_state_put(state);
1868
1869 out:
1870 drm_modeset_drop_locks(&ctx);
1871 drm_modeset_acquire_fini(&ctx);
1872 return ret;
1873 }
1874
1875 static const struct amdgpu_display_funcs dm_display_funcs = {
1876 .bandwidth_update = dm_bandwidth_update, /* called unconditionally */
1877 .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */
1878 .backlight_set_level = NULL, /* never called for DC */
1879 .backlight_get_level = NULL, /* never called for DC */
1880 .hpd_sense = NULL,/* called unconditionally */
1881 .hpd_set_polarity = NULL, /* called unconditionally */
1882 .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */
1883 .page_flip_get_scanoutpos =
1884 dm_crtc_get_scanoutpos,/* called unconditionally */
1885 .add_encoder = NULL, /* VBIOS parsing. DAL does it. */
1886 .add_connector = NULL, /* VBIOS parsing. DAL does it. */
1887 .notify_freesync = amdgpu_notify_freesync,
1888
1889 };
1890
1891 #if defined(CONFIG_DEBUG_KERNEL_DC)
1892
1893 static ssize_t s3_debug_store(struct device *device,
1894 struct device_attribute *attr,
1895 const char *buf,
1896 size_t count)
1897 {
1898 int ret;
1899 int s3_state;
1900 struct pci_dev *pdev = to_pci_dev(device);
1901 struct drm_device *drm_dev = pci_get_drvdata(pdev);
1902 struct amdgpu_device *adev = drm_dev->dev_private;
1903
1904 ret = kstrtoint(buf, 0, &s3_state);
1905
1906 if (ret == 0) {
1907 if (s3_state) {
1908 dm_resume(adev);
1909 drm_kms_helper_hotplug_event(adev->ddev);
1910 } else
1911 dm_suspend(adev);
1912 }
1913
1914 return ret == 0 ? count : 0;
1915 }
1916
1917 DEVICE_ATTR_WO(s3_debug);
1918
1919 #endif
1920
1921 static int dm_early_init(void *handle)
1922 {
1923 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1924
1925 switch (adev->asic_type) {
1926 case CHIP_BONAIRE:
1927 case CHIP_HAWAII:
1928 adev->mode_info.num_crtc = 6;
1929 adev->mode_info.num_hpd = 6;
1930 adev->mode_info.num_dig = 6;
1931 adev->mode_info.plane_type = dm_plane_type_default;
1932 break;
1933 case CHIP_KAVERI:
1934 adev->mode_info.num_crtc = 4;
1935 adev->mode_info.num_hpd = 6;
1936 adev->mode_info.num_dig = 7;
1937 adev->mode_info.plane_type = dm_plane_type_default;
1938 break;
1939 case CHIP_KABINI:
1940 case CHIP_MULLINS:
1941 adev->mode_info.num_crtc = 2;
1942 adev->mode_info.num_hpd = 6;
1943 adev->mode_info.num_dig = 6;
1944 adev->mode_info.plane_type = dm_plane_type_default;
1945 break;
1946 case CHIP_FIJI:
1947 case CHIP_TONGA:
1948 adev->mode_info.num_crtc = 6;
1949 adev->mode_info.num_hpd = 6;
1950 adev->mode_info.num_dig = 7;
1951 adev->mode_info.plane_type = dm_plane_type_default;
1952 break;
1953 case CHIP_CARRIZO:
1954 adev->mode_info.num_crtc = 3;
1955 adev->mode_info.num_hpd = 6;
1956 adev->mode_info.num_dig = 9;
1957 adev->mode_info.plane_type = dm_plane_type_carizzo;
1958 break;
1959 case CHIP_STONEY:
1960 adev->mode_info.num_crtc = 2;
1961 adev->mode_info.num_hpd = 6;
1962 adev->mode_info.num_dig = 9;
1963 adev->mode_info.plane_type = dm_plane_type_stoney;
1964 break;
1965 case CHIP_POLARIS11:
1966 case CHIP_POLARIS12:
1967 adev->mode_info.num_crtc = 5;
1968 adev->mode_info.num_hpd = 5;
1969 adev->mode_info.num_dig = 5;
1970 adev->mode_info.plane_type = dm_plane_type_default;
1971 break;
1972 case CHIP_POLARIS10:
1973 case CHIP_VEGAM:
1974 adev->mode_info.num_crtc = 6;
1975 adev->mode_info.num_hpd = 6;
1976 adev->mode_info.num_dig = 6;
1977 adev->mode_info.plane_type = dm_plane_type_default;
1978 break;
1979 case CHIP_VEGA10:
1980 case CHIP_VEGA12:
1981 case CHIP_VEGA20:
1982 adev->mode_info.num_crtc = 6;
1983 adev->mode_info.num_hpd = 6;
1984 adev->mode_info.num_dig = 6;
1985 adev->mode_info.plane_type = dm_plane_type_default;
1986 break;
1987 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
1988 case CHIP_RAVEN:
1989 adev->mode_info.num_crtc = 4;
1990 adev->mode_info.num_hpd = 4;
1991 adev->mode_info.num_dig = 4;
1992 adev->mode_info.plane_type = dm_plane_type_default;
1993 break;
1994 #endif
1995 default:
1996 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
1997 return -EINVAL;
1998 }
1999
2000 amdgpu_dm_set_irq_funcs(adev);
2001
2002 if (adev->mode_info.funcs == NULL)
2003 adev->mode_info.funcs = &dm_display_funcs;
2004
2005 /*
2006 * Note: Do NOT change adev->audio_endpt_rreg and
2007 * adev->audio_endpt_wreg because they are initialised in
2008 * amdgpu_device_init()
2009 */
2010 #if defined(CONFIG_DEBUG_KERNEL_DC)
2011 device_create_file(
2012 adev->ddev->dev,
2013 &dev_attr_s3_debug);
2014 #endif
2015
2016 return 0;
2017 }
2018
2019 static bool modeset_required(struct drm_crtc_state *crtc_state,
2020 struct dc_stream_state *new_stream,
2021 struct dc_stream_state *old_stream)
2022 {
2023 if (!drm_atomic_crtc_needs_modeset(crtc_state))
2024 return false;
2025
2026 if (!crtc_state->enable)
2027 return false;
2028
2029 return crtc_state->active;
2030 }
2031
2032 static bool modereset_required(struct drm_crtc_state *crtc_state)
2033 {
2034 if (!drm_atomic_crtc_needs_modeset(crtc_state))
2035 return false;
2036
2037 return !crtc_state->enable || !crtc_state->active;
2038 }
2039
2040 static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
2041 {
2042 drm_encoder_cleanup(encoder);
2043 kfree(encoder);
2044 }
2045
2046 static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
2047 .destroy = amdgpu_dm_encoder_destroy,
2048 };
2049
2050 static bool fill_rects_from_plane_state(const struct drm_plane_state *state,
2051 struct dc_plane_state *plane_state)
2052 {
2053 plane_state->src_rect.x = state->src_x >> 16;
2054 plane_state->src_rect.y = state->src_y >> 16;
2055 /* we ignore the mantissa for now and do not deal with floating pixels :( */
2056 plane_state->src_rect.width = state->src_w >> 16;
2057
2058 if (plane_state->src_rect.width == 0)
2059 return false;
2060
2061 plane_state->src_rect.height = state->src_h >> 16;
2062 if (plane_state->src_rect.height == 0)
2063 return false;
2064
2065 plane_state->dst_rect.x = state->crtc_x;
2066 plane_state->dst_rect.y = state->crtc_y;
2067
2068 if (state->crtc_w == 0)
2069 return false;
2070
2071 plane_state->dst_rect.width = state->crtc_w;
2072
2073 if (state->crtc_h == 0)
2074 return false;
2075
2076 plane_state->dst_rect.height = state->crtc_h;
2077
2078 plane_state->clip_rect = plane_state->dst_rect;
2079
2080 switch (state->rotation & DRM_MODE_ROTATE_MASK) {
2081 case DRM_MODE_ROTATE_0:
2082 plane_state->rotation = ROTATION_ANGLE_0;
2083 break;
2084 case DRM_MODE_ROTATE_90:
2085 plane_state->rotation = ROTATION_ANGLE_90;
2086 break;
2087 case DRM_MODE_ROTATE_180:
2088 plane_state->rotation = ROTATION_ANGLE_180;
2089 break;
2090 case DRM_MODE_ROTATE_270:
2091 plane_state->rotation = ROTATION_ANGLE_270;
2092 break;
2093 default:
2094 plane_state->rotation = ROTATION_ANGLE_0;
2095 break;
2096 }
2097
2098 return true;
2099 }
2100 static int get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb,
2101 uint64_t *tiling_flags)
2102 {
2103 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]);
2104 int r = amdgpu_bo_reserve(rbo, false);
2105
2106 if (unlikely(r)) {
2107 /* Don't show error message when returning -ERESTARTSYS */
2108 if (r != -ERESTARTSYS)
2109 DRM_ERROR("Unable to reserve buffer: %d\n", r);
2110 return r;
2111 }
2112
2113 if (tiling_flags)
2114 amdgpu_bo_get_tiling_flags(rbo, tiling_flags);
2115
2116 amdgpu_bo_unreserve(rbo);
2117
2118 return r;
2119 }
2120
2121 static int fill_plane_attributes_from_fb(struct amdgpu_device *adev,
2122 struct dc_plane_state *plane_state,
2123 const struct amdgpu_framebuffer *amdgpu_fb)
2124 {
2125 uint64_t tiling_flags;
2126 unsigned int awidth;
2127 const struct drm_framebuffer *fb = &amdgpu_fb->base;
2128 int ret = 0;
2129 struct drm_format_name_buf format_name;
2130
2131 ret = get_fb_info(
2132 amdgpu_fb,
2133 &tiling_flags);
2134
2135 if (ret)
2136 return ret;
2137
2138 switch (fb->format->format) {
2139 case DRM_FORMAT_C8:
2140 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS;
2141 break;
2142 case DRM_FORMAT_RGB565:
2143 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565;
2144 break;
2145 case DRM_FORMAT_XRGB8888:
2146 case DRM_FORMAT_ARGB8888:
2147 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
2148 break;
2149 case DRM_FORMAT_XRGB2101010:
2150 case DRM_FORMAT_ARGB2101010:
2151 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010;
2152 break;
2153 case DRM_FORMAT_XBGR2101010:
2154 case DRM_FORMAT_ABGR2101010:
2155 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010;
2156 break;
2157 case DRM_FORMAT_XBGR8888:
2158 case DRM_FORMAT_ABGR8888:
2159 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888;
2160 break;
2161 case DRM_FORMAT_NV21:
2162 plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr;
2163 break;
2164 case DRM_FORMAT_NV12:
2165 plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb;
2166 break;
2167 default:
2168 DRM_ERROR("Unsupported screen format %s\n",
2169 drm_get_format_name(fb->format->format, &format_name));
2170 return -EINVAL;
2171 }
2172
2173 if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
2174 plane_state->address.type = PLN_ADDR_TYPE_GRAPHICS;
2175 plane_state->plane_size.grph.surface_size.x = 0;
2176 plane_state->plane_size.grph.surface_size.y = 0;
2177 plane_state->plane_size.grph.surface_size.width = fb->width;
2178 plane_state->plane_size.grph.surface_size.height = fb->height;
2179 plane_state->plane_size.grph.surface_pitch =
2180 fb->pitches[0] / fb->format->cpp[0];
2181 /* TODO: unhardcode */
2182 plane_state->color_space = COLOR_SPACE_SRGB;
2183
2184 } else {
2185 awidth = ALIGN(fb->width, 64);
2186 plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
2187 plane_state->plane_size.video.luma_size.x = 0;
2188 plane_state->plane_size.video.luma_size.y = 0;
2189 plane_state->plane_size.video.luma_size.width = awidth;
2190 plane_state->plane_size.video.luma_size.height = fb->height;
2191 /* TODO: unhardcode */
2192 plane_state->plane_size.video.luma_pitch = awidth;
2193
2194 plane_state->plane_size.video.chroma_size.x = 0;
2195 plane_state->plane_size.video.chroma_size.y = 0;
2196 plane_state->plane_size.video.chroma_size.width = awidth;
2197 plane_state->plane_size.video.chroma_size.height = fb->height;
2198 plane_state->plane_size.video.chroma_pitch = awidth / 2;
2199
2200 /* TODO: unhardcode */
2201 plane_state->color_space = COLOR_SPACE_YCBCR709;
2202 }
2203
2204 memset(&plane_state->tiling_info, 0, sizeof(plane_state->tiling_info));
2205
2206 /* Fill GFX8 params */
2207 if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) {
2208 unsigned int bankw, bankh, mtaspect, tile_split, num_banks;
2209
2210 bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH);
2211 bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT);
2212 mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT);
2213 tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT);
2214 num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS);
2215
2216 /* XXX fix me for VI */
2217 plane_state->tiling_info.gfx8.num_banks = num_banks;
2218 plane_state->tiling_info.gfx8.array_mode =
2219 DC_ARRAY_2D_TILED_THIN1;
2220 plane_state->tiling_info.gfx8.tile_split = tile_split;
2221 plane_state->tiling_info.gfx8.bank_width = bankw;
2222 plane_state->tiling_info.gfx8.bank_height = bankh;
2223 plane_state->tiling_info.gfx8.tile_aspect = mtaspect;
2224 plane_state->tiling_info.gfx8.tile_mode =
2225 DC_ADDR_SURF_MICRO_TILING_DISPLAY;
2226 } else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE)
2227 == DC_ARRAY_1D_TILED_THIN1) {
2228 plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1;
2229 }
2230
2231 plane_state->tiling_info.gfx8.pipe_config =
2232 AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG);
2233
2234 if (adev->asic_type == CHIP_VEGA10 ||
2235 adev->asic_type == CHIP_VEGA12 ||
2236 adev->asic_type == CHIP_VEGA20 ||
2237 adev->asic_type == CHIP_RAVEN) {
2238 /* Fill GFX9 params */
2239 plane_state->tiling_info.gfx9.num_pipes =
2240 adev->gfx.config.gb_addr_config_fields.num_pipes;
2241 plane_state->tiling_info.gfx9.num_banks =
2242 adev->gfx.config.gb_addr_config_fields.num_banks;
2243 plane_state->tiling_info.gfx9.pipe_interleave =
2244 adev->gfx.config.gb_addr_config_fields.pipe_interleave_size;
2245 plane_state->tiling_info.gfx9.num_shader_engines =
2246 adev->gfx.config.gb_addr_config_fields.num_se;
2247 plane_state->tiling_info.gfx9.max_compressed_frags =
2248 adev->gfx.config.gb_addr_config_fields.max_compress_frags;
2249 plane_state->tiling_info.gfx9.num_rb_per_se =
2250 adev->gfx.config.gb_addr_config_fields.num_rb_per_se;
2251 plane_state->tiling_info.gfx9.swizzle =
2252 AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE);
2253 plane_state->tiling_info.gfx9.shaderEnable = 1;
2254 }
2255
2256 plane_state->visible = true;
2257 plane_state->scaling_quality.h_taps_c = 0;
2258 plane_state->scaling_quality.v_taps_c = 0;
2259
2260 /* is this needed? is plane_state zeroed at allocation? */
2261 plane_state->scaling_quality.h_taps = 0;
2262 plane_state->scaling_quality.v_taps = 0;
2263 plane_state->stereo_format = PLANE_STEREO_FORMAT_NONE;
2264
2265 return ret;
2266
2267 }
2268
2269 static int fill_plane_attributes(struct amdgpu_device *adev,
2270 struct dc_plane_state *dc_plane_state,
2271 struct drm_plane_state *plane_state,
2272 struct drm_crtc_state *crtc_state)
2273 {
2274 const struct amdgpu_framebuffer *amdgpu_fb =
2275 to_amdgpu_framebuffer(plane_state->fb);
2276 const struct drm_crtc *crtc = plane_state->crtc;
2277 int ret = 0;
2278
2279 if (!fill_rects_from_plane_state(plane_state, dc_plane_state))
2280 return -EINVAL;
2281
2282 ret = fill_plane_attributes_from_fb(
2283 crtc->dev->dev_private,
2284 dc_plane_state,
2285 amdgpu_fb);
2286
2287 if (ret)
2288 return ret;
2289
2290 /*
2291 * Always set input transfer function, since plane state is refreshed
2292 * every time.
2293 */
2294 ret = amdgpu_dm_set_degamma_lut(crtc_state, dc_plane_state);
2295 if (ret) {
2296 dc_transfer_func_release(dc_plane_state->in_transfer_func);
2297 dc_plane_state->in_transfer_func = NULL;
2298 }
2299
2300 return ret;
2301 }
2302
2303 static void update_stream_scaling_settings(const struct drm_display_mode *mode,
2304 const struct dm_connector_state *dm_state,
2305 struct dc_stream_state *stream)
2306 {
2307 enum amdgpu_rmx_type rmx_type;
2308
2309 struct rect src = { 0 }; /* viewport in composition space*/
2310 struct rect dst = { 0 }; /* stream addressable area */
2311
2312 /* no mode. nothing to be done */
2313 if (!mode)
2314 return;
2315
2316 /* Full screen scaling by default */
2317 src.width = mode->hdisplay;
2318 src.height = mode->vdisplay;
2319 dst.width = stream->timing.h_addressable;
2320 dst.height = stream->timing.v_addressable;
2321
2322 if (dm_state) {
2323 rmx_type = dm_state->scaling;
2324 if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
2325 if (src.width * dst.height <
2326 src.height * dst.width) {
2327 /* height needs less upscaling/more downscaling */
2328 dst.width = src.width *
2329 dst.height / src.height;
2330 } else {
2331 /* width needs less upscaling/more downscaling */
2332 dst.height = src.height *
2333 dst.width / src.width;
2334 }
2335 } else if (rmx_type == RMX_CENTER) {
2336 dst = src;
2337 }
2338
2339 dst.x = (stream->timing.h_addressable - dst.width) / 2;
2340 dst.y = (stream->timing.v_addressable - dst.height) / 2;
2341
2342 if (dm_state->underscan_enable) {
2343 dst.x += dm_state->underscan_hborder / 2;
2344 dst.y += dm_state->underscan_vborder / 2;
2345 dst.width -= dm_state->underscan_hborder;
2346 dst.height -= dm_state->underscan_vborder;
2347 }
2348 }
2349
2350 stream->src = src;
2351 stream->dst = dst;
2352
2353 DRM_DEBUG_DRIVER("Destination Rectangle x:%d y:%d width:%d height:%d\n",
2354 dst.x, dst.y, dst.width, dst.height);
2355
2356 }
2357
2358 static enum dc_color_depth
2359 convert_color_depth_from_display_info(const struct drm_connector *connector)
2360 {
2361 struct dm_connector_state *dm_conn_state =
2362 to_dm_connector_state(connector->state);
2363 uint32_t bpc = connector->display_info.bpc;
2364
2365 /* TODO: Remove this when there's support for max_bpc in drm */
2366 if (dm_conn_state && bpc > dm_conn_state->max_bpc)
2367 /* Round down to nearest even number. */
2368 bpc = dm_conn_state->max_bpc - (dm_conn_state->max_bpc & 1);
2369
2370 switch (bpc) {
2371 case 0:
2372 /*
2373 * Temporary Work around, DRM doesn't parse color depth for
2374 * EDID revision before 1.4
2375 * TODO: Fix edid parsing
2376 */
2377 return COLOR_DEPTH_888;
2378 case 6:
2379 return COLOR_DEPTH_666;
2380 case 8:
2381 return COLOR_DEPTH_888;
2382 case 10:
2383 return COLOR_DEPTH_101010;
2384 case 12:
2385 return COLOR_DEPTH_121212;
2386 case 14:
2387 return COLOR_DEPTH_141414;
2388 case 16:
2389 return COLOR_DEPTH_161616;
2390 default:
2391 return COLOR_DEPTH_UNDEFINED;
2392 }
2393 }
2394
2395 static enum dc_aspect_ratio
2396 get_aspect_ratio(const struct drm_display_mode *mode_in)
2397 {
2398 /* 1-1 mapping, since both enums follow the HDMI spec. */
2399 return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio;
2400 }
2401
2402 static enum dc_color_space
2403 get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
2404 {
2405 enum dc_color_space color_space = COLOR_SPACE_SRGB;
2406
2407 switch (dc_crtc_timing->pixel_encoding) {
2408 case PIXEL_ENCODING_YCBCR422:
2409 case PIXEL_ENCODING_YCBCR444:
2410 case PIXEL_ENCODING_YCBCR420:
2411 {
2412 /*
2413 * 27030khz is the separation point between HDTV and SDTV
2414 * according to HDMI spec, we use YCbCr709 and YCbCr601
2415 * respectively
2416 */
2417 if (dc_crtc_timing->pix_clk_khz > 27030) {
2418 if (dc_crtc_timing->flags.Y_ONLY)
2419 color_space =
2420 COLOR_SPACE_YCBCR709_LIMITED;
2421 else
2422 color_space = COLOR_SPACE_YCBCR709;
2423 } else {
2424 if (dc_crtc_timing->flags.Y_ONLY)
2425 color_space =
2426 COLOR_SPACE_YCBCR601_LIMITED;
2427 else
2428 color_space = COLOR_SPACE_YCBCR601;
2429 }
2430
2431 }
2432 break;
2433 case PIXEL_ENCODING_RGB:
2434 color_space = COLOR_SPACE_SRGB;
2435 break;
2436
2437 default:
2438 WARN_ON(1);
2439 break;
2440 }
2441
2442 return color_space;
2443 }
2444
2445 static void reduce_mode_colour_depth(struct dc_crtc_timing *timing_out)
2446 {
2447 if (timing_out->display_color_depth <= COLOR_DEPTH_888)
2448 return;
2449
2450 timing_out->display_color_depth--;
2451 }
2452
2453 static void adjust_colour_depth_from_display_info(struct dc_crtc_timing *timing_out,
2454 const struct drm_display_info *info)
2455 {
2456 int normalized_clk;
2457 if (timing_out->display_color_depth <= COLOR_DEPTH_888)
2458 return;
2459 do {
2460 normalized_clk = timing_out->pix_clk_khz;
2461 /* YCbCr 4:2:0 requires additional adjustment of 1/2 */
2462 if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420)
2463 normalized_clk /= 2;
2464 /* Adjusting pix clock following on HDMI spec based on colour depth */
2465 switch (timing_out->display_color_depth) {
2466 case COLOR_DEPTH_101010:
2467 normalized_clk = (normalized_clk * 30) / 24;
2468 break;
2469 case COLOR_DEPTH_121212:
2470 normalized_clk = (normalized_clk * 36) / 24;
2471 break;
2472 case COLOR_DEPTH_161616:
2473 normalized_clk = (normalized_clk * 48) / 24;
2474 break;
2475 default:
2476 return;
2477 }
2478 if (normalized_clk <= info->max_tmds_clock)
2479 return;
2480 reduce_mode_colour_depth(timing_out);
2481
2482 } while (timing_out->display_color_depth > COLOR_DEPTH_888);
2483
2484 }
2485
2486 static void
2487 fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream,
2488 const struct drm_display_mode *mode_in,
2489 const struct drm_connector *connector)
2490 {
2491 struct dc_crtc_timing *timing_out = &stream->timing;
2492 const struct drm_display_info *info = &connector->display_info;
2493
2494 memset(timing_out, 0, sizeof(struct dc_crtc_timing));
2495
2496 timing_out->h_border_left = 0;
2497 timing_out->h_border_right = 0;
2498 timing_out->v_border_top = 0;
2499 timing_out->v_border_bottom = 0;
2500 /* TODO: un-hardcode */
2501 if (drm_mode_is_420_only(info, mode_in)
2502 && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A)
2503 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
2504 else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444)
2505 && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A)
2506 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
2507 else
2508 timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
2509
2510 timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
2511 timing_out->display_color_depth = convert_color_depth_from_display_info(
2512 connector);
2513 timing_out->scan_type = SCANNING_TYPE_NODATA;
2514 timing_out->hdmi_vic = 0;
2515 timing_out->vic = drm_match_cea_mode(mode_in);
2516
2517 timing_out->h_addressable = mode_in->crtc_hdisplay;
2518 timing_out->h_total = mode_in->crtc_htotal;
2519 timing_out->h_sync_width =
2520 mode_in->crtc_hsync_end - mode_in->crtc_hsync_start;
2521 timing_out->h_front_porch =
2522 mode_in->crtc_hsync_start - mode_in->crtc_hdisplay;
2523 timing_out->v_total = mode_in->crtc_vtotal;
2524 timing_out->v_addressable = mode_in->crtc_vdisplay;
2525 timing_out->v_front_porch =
2526 mode_in->crtc_vsync_start - mode_in->crtc_vdisplay;
2527 timing_out->v_sync_width =
2528 mode_in->crtc_vsync_end - mode_in->crtc_vsync_start;
2529 timing_out->pix_clk_khz = mode_in->crtc_clock;
2530 timing_out->aspect_ratio = get_aspect_ratio(mode_in);
2531 if (mode_in->flags & DRM_MODE_FLAG_PHSYNC)
2532 timing_out->flags.HSYNC_POSITIVE_POLARITY = 1;
2533 if (mode_in->flags & DRM_MODE_FLAG_PVSYNC)
2534 timing_out->flags.VSYNC_POSITIVE_POLARITY = 1;
2535
2536 stream->output_color_space = get_output_color_space(timing_out);
2537
2538 stream->out_transfer_func->type = TF_TYPE_PREDEFINED;
2539 stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB;
2540 if (stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A)
2541 adjust_colour_depth_from_display_info(timing_out, info);
2542 }
2543
2544 static void fill_audio_info(struct audio_info *audio_info,
2545 const struct drm_connector *drm_connector,
2546 const struct dc_sink *dc_sink)
2547 {
2548 int i = 0;
2549 int cea_revision = 0;
2550 const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
2551
2552 audio_info->manufacture_id = edid_caps->manufacturer_id;
2553 audio_info->product_id = edid_caps->product_id;
2554
2555 cea_revision = drm_connector->display_info.cea_rev;
2556
2557 strncpy(audio_info->display_name,
2558 edid_caps->display_name,
2559 AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS - 1);
2560
2561 if (cea_revision >= 3) {
2562 audio_info->mode_count = edid_caps->audio_mode_count;
2563
2564 for (i = 0; i < audio_info->mode_count; ++i) {
2565 audio_info->modes[i].format_code =
2566 (enum audio_format_code)
2567 (edid_caps->audio_modes[i].format_code);
2568 audio_info->modes[i].channel_count =
2569 edid_caps->audio_modes[i].channel_count;
2570 audio_info->modes[i].sample_rates.all =
2571 edid_caps->audio_modes[i].sample_rate;
2572 audio_info->modes[i].sample_size =
2573 edid_caps->audio_modes[i].sample_size;
2574 }
2575 }
2576
2577 audio_info->flags.all = edid_caps->speaker_flags;
2578
2579 /* TODO: We only check for the progressive mode, check for interlace mode too */
2580 if (drm_connector->latency_present[0]) {
2581 audio_info->video_latency = drm_connector->video_latency[0];
2582 audio_info->audio_latency = drm_connector->audio_latency[0];
2583 }
2584
2585 /* TODO: For DP, video and audio latency should be calculated from DPCD caps */
2586
2587 }
2588
2589 static void
2590 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
2591 struct drm_display_mode *dst_mode)
2592 {
2593 dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay;
2594 dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay;
2595 dst_mode->crtc_clock = src_mode->crtc_clock;
2596 dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start;
2597 dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end;
2598 dst_mode->crtc_hsync_start = src_mode->crtc_hsync_start;
2599 dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end;
2600 dst_mode->crtc_htotal = src_mode->crtc_htotal;
2601 dst_mode->crtc_hskew = src_mode->crtc_hskew;
2602 dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start;
2603 dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end;
2604 dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start;
2605 dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end;
2606 dst_mode->crtc_vtotal = src_mode->crtc_vtotal;
2607 }
2608
2609 static void
2610 decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode,
2611 const struct drm_display_mode *native_mode,
2612 bool scale_enabled)
2613 {
2614 if (scale_enabled) {
2615 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
2616 } else if (native_mode->clock == drm_mode->clock &&
2617 native_mode->htotal == drm_mode->htotal &&
2618 native_mode->vtotal == drm_mode->vtotal) {
2619 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
2620 } else {
2621 /* no scaling nor amdgpu inserted, no need to patch */
2622 }
2623 }
2624
2625 static struct dc_sink *
2626 create_fake_sink(struct amdgpu_dm_connector *aconnector)
2627 {
2628 struct dc_sink_init_data sink_init_data = { 0 };
2629 struct dc_sink *sink = NULL;
2630 sink_init_data.link = aconnector->dc_link;
2631 sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
2632
2633 sink = dc_sink_create(&sink_init_data);
2634 if (!sink) {
2635 DRM_ERROR("Failed to create sink!\n");
2636 return NULL;
2637 }
2638 sink->sink_signal = SIGNAL_TYPE_VIRTUAL;
2639
2640 return sink;
2641 }
2642
2643 static void set_multisync_trigger_params(
2644 struct dc_stream_state *stream)
2645 {
2646 if (stream->triggered_crtc_reset.enabled) {
2647 stream->triggered_crtc_reset.event = CRTC_EVENT_VSYNC_RISING;
2648 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_LINE;
2649 }
2650 }
2651
2652 static void set_master_stream(struct dc_stream_state *stream_set[],
2653 int stream_count)
2654 {
2655 int j, highest_rfr = 0, master_stream = 0;
2656
2657 for (j = 0; j < stream_count; j++) {
2658 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) {
2659 int refresh_rate = 0;
2660
2661 refresh_rate = (stream_set[j]->timing.pix_clk_khz*1000)/
2662 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total);
2663 if (refresh_rate > highest_rfr) {
2664 highest_rfr = refresh_rate;
2665 master_stream = j;
2666 }
2667 }
2668 }
2669 for (j = 0; j < stream_count; j++) {
2670 if (stream_set[j])
2671 stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream];
2672 }
2673 }
2674
2675 static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context)
2676 {
2677 int i = 0;
2678
2679 if (context->stream_count < 2)
2680 return;
2681 for (i = 0; i < context->stream_count ; i++) {
2682 if (!context->streams[i])
2683 continue;
2684 /*
2685 * TODO: add a function to read AMD VSDB bits and set
2686 * crtc_sync_master.multi_sync_enabled flag
2687 * For now it's set to false
2688 */
2689 set_multisync_trigger_params(context->streams[i]);
2690 }
2691 set_master_stream(context->streams, context->stream_count);
2692 }
2693
2694 static struct dc_stream_state *
2695 create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
2696 const struct drm_display_mode *drm_mode,
2697 const struct dm_connector_state *dm_state)
2698 {
2699 struct drm_display_mode *preferred_mode = NULL;
2700 struct drm_connector *drm_connector;
2701 struct dc_stream_state *stream = NULL;
2702 struct drm_display_mode mode = *drm_mode;
2703 bool native_mode_found = false;
2704 struct dc_sink *sink = NULL;
2705 if (aconnector == NULL) {
2706 DRM_ERROR("aconnector is NULL!\n");
2707 return stream;
2708 }
2709
2710 drm_connector = &aconnector->base;
2711
2712 if (!aconnector->dc_sink) {
2713 if (!aconnector->mst_port) {
2714 sink = create_fake_sink(aconnector);
2715 if (!sink)
2716 return stream;
2717 }
2718 } else {
2719 sink = aconnector->dc_sink;
2720 }
2721
2722 stream = dc_create_stream_for_sink(sink);
2723
2724 if (stream == NULL) {
2725 DRM_ERROR("Failed to create stream for sink!\n");
2726 goto finish;
2727 }
2728
2729 list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
2730 /* Search for preferred mode */
2731 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) {
2732 native_mode_found = true;
2733 break;
2734 }
2735 }
2736 if (!native_mode_found)
2737 preferred_mode = list_first_entry_or_null(
2738 &aconnector->base.modes,
2739 struct drm_display_mode,
2740 head);
2741
2742 if (preferred_mode == NULL) {
2743 /*
2744 * This may not be an error, the use case is when we have no
2745 * usermode calls to reset and set mode upon hotplug. In this
2746 * case, we call set mode ourselves to restore the previous mode
2747 * and the modelist may not be filled in in time.
2748 */
2749 DRM_DEBUG_DRIVER("No preferred mode found\n");
2750 } else {
2751 decide_crtc_timing_for_drm_display_mode(
2752 &mode, preferred_mode,
2753 dm_state ? (dm_state->scaling != RMX_OFF) : false);
2754 }
2755
2756 if (!dm_state)
2757 drm_mode_set_crtcinfo(&mode, 0);
2758
2759 fill_stream_properties_from_drm_display_mode(stream,
2760 &mode, &aconnector->base);
2761 update_stream_scaling_settings(&mode, dm_state, stream);
2762
2763 fill_audio_info(
2764 &stream->audio_info,
2765 drm_connector,
2766 sink);
2767
2768 update_stream_signal(stream);
2769
2770 if (dm_state && dm_state->freesync_capable)
2771 stream->ignore_msa_timing_param = true;
2772 finish:
2773 if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL && aconnector->base.force != DRM_FORCE_ON)
2774 dc_sink_release(sink);
2775
2776 return stream;
2777 }
2778
2779 static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc)
2780 {
2781 drm_crtc_cleanup(crtc);
2782 kfree(crtc);
2783 }
2784
2785 static void dm_crtc_destroy_state(struct drm_crtc *crtc,
2786 struct drm_crtc_state *state)
2787 {
2788 struct dm_crtc_state *cur = to_dm_crtc_state(state);
2789
2790 /* TODO Destroy dc_stream objects are stream object is flattened */
2791 if (cur->stream)
2792 dc_stream_release(cur->stream);
2793
2794
2795 __drm_atomic_helper_crtc_destroy_state(state);
2796
2797
2798 kfree(state);
2799 }
2800
2801 static void dm_crtc_reset_state(struct drm_crtc *crtc)
2802 {
2803 struct dm_crtc_state *state;
2804
2805 if (crtc->state)
2806 dm_crtc_destroy_state(crtc, crtc->state);
2807
2808 state = kzalloc(sizeof(*state), GFP_KERNEL);
2809 if (WARN_ON(!state))
2810 return;
2811
2812 crtc->state = &state->base;
2813 crtc->state->crtc = crtc;
2814
2815 }
2816
2817 static struct drm_crtc_state *
2818 dm_crtc_duplicate_state(struct drm_crtc *crtc)
2819 {
2820 struct dm_crtc_state *state, *cur;
2821
2822 cur = to_dm_crtc_state(crtc->state);
2823
2824 if (WARN_ON(!crtc->state))
2825 return NULL;
2826
2827 state = kzalloc(sizeof(*state), GFP_KERNEL);
2828 if (!state)
2829 return NULL;
2830
2831 __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
2832
2833 if (cur->stream) {
2834 state->stream = cur->stream;
2835 dc_stream_retain(state->stream);
2836 }
2837
2838 state->adjust = cur->adjust;
2839 state->vrr_infopacket = cur->vrr_infopacket;
2840 state->freesync_enabled = cur->freesync_enabled;
2841
2842 /* TODO Duplicate dc_stream after objects are stream object is flattened */
2843
2844 return &state->base;
2845 }
2846
2847
2848 static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
2849 {
2850 enum dc_irq_source irq_source;
2851 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
2852 struct amdgpu_device *adev = crtc->dev->dev_private;
2853
2854 irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
2855 return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
2856 }
2857
2858 static int dm_enable_vblank(struct drm_crtc *crtc)
2859 {
2860 return dm_set_vblank(crtc, true);
2861 }
2862
2863 static void dm_disable_vblank(struct drm_crtc *crtc)
2864 {
2865 dm_set_vblank(crtc, false);
2866 }
2867
2868 /* Implemented only the options currently availible for the driver */
2869 static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
2870 .reset = dm_crtc_reset_state,
2871 .destroy = amdgpu_dm_crtc_destroy,
2872 .gamma_set = drm_atomic_helper_legacy_gamma_set,
2873 .set_config = drm_atomic_helper_set_config,
2874 .page_flip = drm_atomic_helper_page_flip,
2875 .atomic_duplicate_state = dm_crtc_duplicate_state,
2876 .atomic_destroy_state = dm_crtc_destroy_state,
2877 .set_crc_source = amdgpu_dm_crtc_set_crc_source,
2878 .verify_crc_source = amdgpu_dm_crtc_verify_crc_source,
2879 .enable_vblank = dm_enable_vblank,
2880 .disable_vblank = dm_disable_vblank,
2881 };
2882
2883 static enum drm_connector_status
2884 amdgpu_dm_connector_detect(struct drm_connector *connector, bool force)
2885 {
2886 bool connected;
2887 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
2888
2889 /*
2890 * Notes:
2891 * 1. This interface is NOT called in context of HPD irq.
2892 * 2. This interface *is called* in context of user-mode ioctl. Which
2893 * makes it a bad place for *any* MST-related activity.
2894 */
2895
2896 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED &&
2897 !aconnector->fake_enable)
2898 connected = (aconnector->dc_sink != NULL);
2899 else
2900 connected = (aconnector->base.force == DRM_FORCE_ON);
2901
2902 return (connected ? connector_status_connected :
2903 connector_status_disconnected);
2904 }
2905
2906 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
2907 struct drm_connector_state *connector_state,
2908 struct drm_property *property,
2909 uint64_t val)
2910 {
2911 struct drm_device *dev = connector->dev;
2912 struct amdgpu_device *adev = dev->dev_private;
2913 struct dm_connector_state *dm_old_state =
2914 to_dm_connector_state(connector->state);
2915 struct dm_connector_state *dm_new_state =
2916 to_dm_connector_state(connector_state);
2917
2918 int ret = -EINVAL;
2919
2920 if (property == dev->mode_config.scaling_mode_property) {
2921 enum amdgpu_rmx_type rmx_type;
2922
2923 switch (val) {
2924 case DRM_MODE_SCALE_CENTER:
2925 rmx_type = RMX_CENTER;
2926 break;
2927 case DRM_MODE_SCALE_ASPECT:
2928 rmx_type = RMX_ASPECT;
2929 break;
2930 case DRM_MODE_SCALE_FULLSCREEN:
2931 rmx_type = RMX_FULL;
2932 break;
2933 case DRM_MODE_SCALE_NONE:
2934 default:
2935 rmx_type = RMX_OFF;
2936 break;
2937 }
2938
2939 if (dm_old_state->scaling == rmx_type)
2940 return 0;
2941
2942 dm_new_state->scaling = rmx_type;
2943 ret = 0;
2944 } else if (property == adev->mode_info.underscan_hborder_property) {
2945 dm_new_state->underscan_hborder = val;
2946 ret = 0;
2947 } else if (property == adev->mode_info.underscan_vborder_property) {
2948 dm_new_state->underscan_vborder = val;
2949 ret = 0;
2950 } else if (property == adev->mode_info.underscan_property) {
2951 dm_new_state->underscan_enable = val;
2952 ret = 0;
2953 } else if (property == adev->mode_info.max_bpc_property) {
2954 dm_new_state->max_bpc = val;
2955 ret = 0;
2956 }
2957
2958 return ret;
2959 }
2960
2961 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
2962 const struct drm_connector_state *state,
2963 struct drm_property *property,
2964 uint64_t *val)
2965 {
2966 struct drm_device *dev = connector->dev;
2967 struct amdgpu_device *adev = dev->dev_private;
2968 struct dm_connector_state *dm_state =
2969 to_dm_connector_state(state);
2970 int ret = -EINVAL;
2971
2972 if (property == dev->mode_config.scaling_mode_property) {
2973 switch (dm_state->scaling) {
2974 case RMX_CENTER:
2975 *val = DRM_MODE_SCALE_CENTER;
2976 break;
2977 case RMX_ASPECT:
2978 *val = DRM_MODE_SCALE_ASPECT;
2979 break;
2980 case RMX_FULL:
2981 *val = DRM_MODE_SCALE_FULLSCREEN;
2982 break;
2983 case RMX_OFF:
2984 default:
2985 *val = DRM_MODE_SCALE_NONE;
2986 break;
2987 }
2988 ret = 0;
2989 } else if (property == adev->mode_info.underscan_hborder_property) {
2990 *val = dm_state->underscan_hborder;
2991 ret = 0;
2992 } else if (property == adev->mode_info.underscan_vborder_property) {
2993 *val = dm_state->underscan_vborder;
2994 ret = 0;
2995 } else if (property == adev->mode_info.underscan_property) {
2996 *val = dm_state->underscan_enable;
2997 ret = 0;
2998 } else if (property == adev->mode_info.max_bpc_property) {
2999 *val = dm_state->max_bpc;
3000 ret = 0;
3001 }
3002 return ret;
3003 }
3004
3005 static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
3006 {
3007 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
3008 const struct dc_link *link = aconnector->dc_link;
3009 struct amdgpu_device *adev = connector->dev->dev_private;
3010 struct amdgpu_display_manager *dm = &adev->dm;
3011
3012 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
3013 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
3014
3015 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
3016 link->type != dc_connection_none &&
3017 dm->backlight_dev) {
3018 backlight_device_unregister(dm->backlight_dev);
3019 dm->backlight_dev = NULL;
3020 }
3021 #endif
3022 drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux);
3023 drm_connector_unregister(connector);
3024 drm_connector_cleanup(connector);
3025 kfree(connector);
3026 }
3027
3028 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
3029 {
3030 struct dm_connector_state *state =
3031 to_dm_connector_state(connector->state);
3032
3033 if (connector->state)
3034 __drm_atomic_helper_connector_destroy_state(connector->state);
3035
3036 kfree(state);
3037
3038 state = kzalloc(sizeof(*state), GFP_KERNEL);
3039
3040 if (state) {
3041 state->scaling = RMX_OFF;
3042 state->underscan_enable = false;
3043 state->underscan_hborder = 0;
3044 state->underscan_vborder = 0;
3045
3046 __drm_atomic_helper_connector_reset(connector, &state->base);
3047 }
3048 }
3049
3050 struct drm_connector_state *
3051 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
3052 {
3053 struct dm_connector_state *state =
3054 to_dm_connector_state(connector->state);
3055
3056 struct dm_connector_state *new_state =
3057 kmemdup(state, sizeof(*state), GFP_KERNEL);
3058
3059 if (!new_state)
3060 return NULL;
3061
3062 __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
3063
3064 new_state->freesync_capable = state->freesync_capable;
3065 new_state->freesync_enable = state->freesync_enable;
3066
3067 return &new_state->base;
3068 }
3069
3070 static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
3071 .reset = amdgpu_dm_connector_funcs_reset,
3072 .detect = amdgpu_dm_connector_detect,
3073 .fill_modes = drm_helper_probe_single_connector_modes,
3074 .destroy = amdgpu_dm_connector_destroy,
3075 .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
3076 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
3077 .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
3078 .atomic_get_property = amdgpu_dm_connector_atomic_get_property
3079 };
3080
3081 static int get_modes(struct drm_connector *connector)
3082 {
3083 return amdgpu_dm_connector_get_modes(connector);
3084 }
3085
3086 static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
3087 {
3088 struct dc_sink_init_data init_params = {
3089 .link = aconnector->dc_link,
3090 .sink_signal = SIGNAL_TYPE_VIRTUAL
3091 };
3092 struct edid *edid;
3093
3094 if (!aconnector->base.edid_blob_ptr) {
3095 DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
3096 aconnector->base.name);
3097
3098 aconnector->base.force = DRM_FORCE_OFF;
3099 aconnector->base.override_edid = false;
3100 return;
3101 }
3102
3103 edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
3104
3105 aconnector->edid = edid;
3106
3107 aconnector->dc_em_sink = dc_link_add_remote_sink(
3108 aconnector->dc_link,
3109 (uint8_t *)edid,
3110 (edid->extensions + 1) * EDID_LENGTH,
3111 &init_params);
3112
3113 if (aconnector->base.force == DRM_FORCE_ON)
3114 aconnector->dc_sink = aconnector->dc_link->local_sink ?
3115 aconnector->dc_link->local_sink :
3116 aconnector->dc_em_sink;
3117 }
3118
3119 static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector)
3120 {
3121 struct dc_link *link = (struct dc_link *)aconnector->dc_link;
3122
3123 /*
3124 * In case of headless boot with force on for DP managed connector
3125 * Those settings have to be != 0 to get initial modeset
3126 */
3127 if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) {
3128 link->verified_link_cap.lane_count = LANE_COUNT_FOUR;
3129 link->verified_link_cap.link_rate = LINK_RATE_HIGH2;
3130 }
3131
3132
3133 aconnector->base.override_edid = true;
3134 create_eml_sink(aconnector);
3135 }
3136
3137 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
3138 struct drm_display_mode *mode)
3139 {
3140 int result = MODE_ERROR;
3141 struct dc_sink *dc_sink;
3142 struct amdgpu_device *adev = connector->dev->dev_private;
3143 /* TODO: Unhardcode stream count */
3144 struct dc_stream_state *stream;
3145 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
3146 enum dc_status dc_result = DC_OK;
3147
3148 if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
3149 (mode->flags & DRM_MODE_FLAG_DBLSCAN))
3150 return result;
3151
3152 /*
3153 * Only run this the first time mode_valid is called to initilialize
3154 * EDID mgmt
3155 */
3156 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED &&
3157 !aconnector->dc_em_sink)
3158 handle_edid_mgmt(aconnector);
3159
3160 dc_sink = to_amdgpu_dm_connector(connector)->dc_sink;
3161
3162 if (dc_sink == NULL) {
3163 DRM_ERROR("dc_sink is NULL!\n");
3164 goto fail;
3165 }
3166
3167 stream = create_stream_for_sink(aconnector, mode, NULL);
3168 if (stream == NULL) {
3169 DRM_ERROR("Failed to create stream for sink!\n");
3170 goto fail;
3171 }
3172
3173 dc_result = dc_validate_stream(adev->dm.dc, stream);
3174
3175 if (dc_result == DC_OK)
3176 result = MODE_OK;
3177 else
3178 DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d\n",
3179 mode->vdisplay,
3180 mode->hdisplay,
3181 mode->clock,
3182 dc_result);
3183
3184 dc_stream_release(stream);
3185
3186 fail:
3187 /* TODO: error handling*/
3188 return result;
3189 }
3190
3191 static const struct drm_connector_helper_funcs
3192 amdgpu_dm_connector_helper_funcs = {
3193 /*
3194 * If hotplugging a second bigger display in FB Con mode, bigger resolution
3195 * modes will be filtered by drm_mode_validate_size(), and those modes
3196 * are missing after user start lightdm. So we need to renew modes list.
3197 * in get_modes call back, not just return the modes count
3198 */
3199 .get_modes = get_modes,
3200 .mode_valid = amdgpu_dm_connector_mode_valid,
3201 .best_encoder = drm_atomic_helper_best_encoder
3202 };
3203
3204 static void dm_crtc_helper_disable(struct drm_crtc *crtc)
3205 {
3206 }
3207
3208 static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
3209 struct drm_crtc_state *state)
3210 {
3211 struct amdgpu_device *adev = crtc->dev->dev_private;
3212 struct dc *dc = adev->dm.dc;
3213 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
3214 int ret = -EINVAL;
3215
3216 if (unlikely(!dm_crtc_state->stream &&
3217 modeset_required(state, NULL, dm_crtc_state->stream))) {
3218 WARN_ON(1);
3219 return ret;
3220 }
3221
3222 /* In some use cases, like reset, no stream is attached */
3223 if (!dm_crtc_state->stream)
3224 return 0;
3225
3226 if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK)
3227 return 0;
3228
3229 return ret;
3230 }
3231
3232 static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc,
3233 const struct drm_display_mode *mode,
3234 struct drm_display_mode *adjusted_mode)
3235 {
3236 return true;
3237 }
3238
3239 static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = {
3240 .disable = dm_crtc_helper_disable,
3241 .atomic_check = dm_crtc_helper_atomic_check,
3242 .mode_fixup = dm_crtc_helper_mode_fixup
3243 };
3244
3245 static void dm_encoder_helper_disable(struct drm_encoder *encoder)
3246 {
3247
3248 }
3249
3250 static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
3251 struct drm_crtc_state *crtc_state,
3252 struct drm_connector_state *conn_state)
3253 {
3254 return 0;
3255 }
3256
3257 const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
3258 .disable = dm_encoder_helper_disable,
3259 .atomic_check = dm_encoder_helper_atomic_check
3260 };
3261
3262 static void dm_drm_plane_reset(struct drm_plane *plane)
3263 {
3264 struct dm_plane_state *amdgpu_state = NULL;
3265
3266 if (plane->state)
3267 plane->funcs->atomic_destroy_state(plane, plane->state);
3268
3269 amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL);
3270 WARN_ON(amdgpu_state == NULL);
3271
3272 if (amdgpu_state) {
3273 plane->state = &amdgpu_state->base;
3274 plane->state->plane = plane;
3275 plane->state->rotation = DRM_MODE_ROTATE_0;
3276 }
3277 }
3278
3279 static struct drm_plane_state *
3280 dm_drm_plane_duplicate_state(struct drm_plane *plane)
3281 {
3282 struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
3283
3284 old_dm_plane_state = to_dm_plane_state(plane->state);
3285 dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL);
3286 if (!dm_plane_state)
3287 return NULL;
3288
3289 __drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base);
3290
3291 if (old_dm_plane_state->dc_state) {
3292 dm_plane_state->dc_state = old_dm_plane_state->dc_state;
3293 dc_plane_state_retain(dm_plane_state->dc_state);
3294 }
3295
3296 return &dm_plane_state->base;
3297 }
3298
3299 void dm_drm_plane_destroy_state(struct drm_plane *plane,
3300 struct drm_plane_state *state)
3301 {
3302 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
3303
3304 if (dm_plane_state->dc_state)
3305 dc_plane_state_release(dm_plane_state->dc_state);
3306
3307 drm_atomic_helper_plane_destroy_state(plane, state);
3308 }
3309
3310 static const struct drm_plane_funcs dm_plane_funcs = {
3311 .update_plane = drm_atomic_helper_update_plane,
3312 .disable_plane = drm_atomic_helper_disable_plane,
3313 .destroy = drm_primary_helper_destroy,
3314 .reset = dm_drm_plane_reset,
3315 .atomic_duplicate_state = dm_drm_plane_duplicate_state,
3316 .atomic_destroy_state = dm_drm_plane_destroy_state,
3317 };
3318
3319 static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
3320 struct drm_plane_state *new_state)
3321 {
3322 struct amdgpu_framebuffer *afb;
3323 struct drm_gem_object *obj;
3324 struct amdgpu_device *adev;
3325 struct amdgpu_bo *rbo;
3326 uint64_t chroma_addr = 0;
3327 struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old;
3328 unsigned int awidth;
3329 uint32_t domain;
3330 int r;
3331
3332 dm_plane_state_old = to_dm_plane_state(plane->state);
3333 dm_plane_state_new = to_dm_plane_state(new_state);
3334
3335 if (!new_state->fb) {
3336 DRM_DEBUG_DRIVER("No FB bound\n");
3337 return 0;
3338 }
3339
3340 afb = to_amdgpu_framebuffer(new_state->fb);
3341 obj = new_state->fb->obj[0];
3342 rbo = gem_to_amdgpu_bo(obj);
3343 adev = amdgpu_ttm_adev(rbo->tbo.bdev);
3344 r = amdgpu_bo_reserve(rbo, false);
3345 if (unlikely(r != 0))
3346 return r;
3347
3348 if (plane->type != DRM_PLANE_TYPE_CURSOR)
3349 domain = amdgpu_display_supported_domains(adev);
3350 else
3351 domain = AMDGPU_GEM_DOMAIN_VRAM;
3352
3353 r = amdgpu_bo_pin(rbo, domain);
3354 if (unlikely(r != 0)) {
3355 if (r != -ERESTARTSYS)
3356 DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
3357 amdgpu_bo_unreserve(rbo);
3358 return r;
3359 }
3360
3361 r = amdgpu_ttm_alloc_gart(&rbo->tbo);
3362 if (unlikely(r != 0)) {
3363 amdgpu_bo_unpin(rbo);
3364 amdgpu_bo_unreserve(rbo);
3365 DRM_ERROR("%p bind failed\n", rbo);
3366 return r;
3367 }
3368 amdgpu_bo_unreserve(rbo);
3369
3370 afb->address = amdgpu_bo_gpu_offset(rbo);
3371
3372 amdgpu_bo_ref(rbo);
3373
3374 if (dm_plane_state_new->dc_state &&
3375 dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) {
3376 struct dc_plane_state *plane_state = dm_plane_state_new->dc_state;
3377
3378 if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
3379 plane_state->address.grph.addr.low_part = lower_32_bits(afb->address);
3380 plane_state->address.grph.addr.high_part = upper_32_bits(afb->address);
3381 } else {
3382 awidth = ALIGN(new_state->fb->width, 64);
3383 plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
3384 plane_state->address.video_progressive.luma_addr.low_part
3385 = lower_32_bits(afb->address);
3386 plane_state->address.video_progressive.luma_addr.high_part
3387 = upper_32_bits(afb->address);
3388 chroma_addr = afb->address + (u64)awidth * new_state->fb->height;
3389 plane_state->address.video_progressive.chroma_addr.low_part
3390 = lower_32_bits(chroma_addr);
3391 plane_state->address.video_progressive.chroma_addr.high_part
3392 = upper_32_bits(chroma_addr);
3393 }
3394 }
3395
3396 return 0;
3397 }
3398
3399 static void dm_plane_helper_cleanup_fb(struct drm_plane *plane,
3400 struct drm_plane_state *old_state)
3401 {
3402 struct amdgpu_bo *rbo;
3403 int r;
3404
3405 if (!old_state->fb)
3406 return;
3407
3408 rbo = gem_to_amdgpu_bo(old_state->fb->obj[0]);
3409 r = amdgpu_bo_reserve(rbo, false);
3410 if (unlikely(r)) {
3411 DRM_ERROR("failed to reserve rbo before unpin\n");
3412 return;
3413 }
3414
3415 amdgpu_bo_unpin(rbo);
3416 amdgpu_bo_unreserve(rbo);
3417 amdgpu_bo_unref(&rbo);
3418 }
3419
3420 static int dm_plane_atomic_check(struct drm_plane *plane,
3421 struct drm_plane_state *state)
3422 {
3423 struct amdgpu_device *adev = plane->dev->dev_private;
3424 struct dc *dc = adev->dm.dc;
3425 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
3426
3427 if (!dm_plane_state->dc_state)
3428 return 0;
3429
3430 if (!fill_rects_from_plane_state(state, dm_plane_state->dc_state))
3431 return -EINVAL;
3432
3433 if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK)
3434 return 0;
3435
3436 return -EINVAL;
3437 }
3438
3439 static const struct drm_plane_helper_funcs dm_plane_helper_funcs = {
3440 .prepare_fb = dm_plane_helper_prepare_fb,
3441 .cleanup_fb = dm_plane_helper_cleanup_fb,
3442 .atomic_check = dm_plane_atomic_check,
3443 };
3444
3445 /*
3446 * TODO: these are currently initialized to rgb formats only.
3447 * For future use cases we should either initialize them dynamically based on
3448 * plane capabilities, or initialize this array to all formats, so internal drm
3449 * check will succeed, and let DC implement proper check
3450 */
3451 static const uint32_t rgb_formats[] = {
3452 DRM_FORMAT_RGB888,
3453 DRM_FORMAT_XRGB8888,
3454 DRM_FORMAT_ARGB8888,
3455 DRM_FORMAT_RGBA8888,
3456 DRM_FORMAT_XRGB2101010,
3457 DRM_FORMAT_XBGR2101010,
3458 DRM_FORMAT_ARGB2101010,
3459 DRM_FORMAT_ABGR2101010,
3460 DRM_FORMAT_XBGR8888,
3461 DRM_FORMAT_ABGR8888,
3462 };
3463
3464 static const uint32_t yuv_formats[] = {
3465 DRM_FORMAT_NV12,
3466 DRM_FORMAT_NV21,
3467 };
3468
3469 static const u32 cursor_formats[] = {
3470 DRM_FORMAT_ARGB8888
3471 };
3472
3473 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
3474 struct amdgpu_plane *aplane,
3475 unsigned long possible_crtcs)
3476 {
3477 int res = -EPERM;
3478
3479 switch (aplane->base.type) {
3480 case DRM_PLANE_TYPE_PRIMARY:
3481 res = drm_universal_plane_init(
3482 dm->adev->ddev,
3483 &aplane->base,
3484 possible_crtcs,
3485 &dm_plane_funcs,
3486 rgb_formats,
3487 ARRAY_SIZE(rgb_formats),
3488 NULL, aplane->base.type, NULL);
3489 break;
3490 case DRM_PLANE_TYPE_OVERLAY:
3491 res = drm_universal_plane_init(
3492 dm->adev->ddev,
3493 &aplane->base,
3494 possible_crtcs,
3495 &dm_plane_funcs,
3496 yuv_formats,
3497 ARRAY_SIZE(yuv_formats),
3498 NULL, aplane->base.type, NULL);
3499 break;
3500 case DRM_PLANE_TYPE_CURSOR:
3501 res = drm_universal_plane_init(
3502 dm->adev->ddev,
3503 &aplane->base,
3504 possible_crtcs,
3505 &dm_plane_funcs,
3506 cursor_formats,
3507 ARRAY_SIZE(cursor_formats),
3508 NULL, aplane->base.type, NULL);
3509 break;
3510 }
3511
3512 drm_plane_helper_add(&aplane->base, &dm_plane_helper_funcs);
3513
3514 /* Create (reset) the plane state */
3515 if (aplane->base.funcs->reset)
3516 aplane->base.funcs->reset(&aplane->base);
3517
3518
3519 return res;
3520 }
3521
3522 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
3523 struct drm_plane *plane,
3524 uint32_t crtc_index)
3525 {
3526 struct amdgpu_crtc *acrtc = NULL;
3527 struct amdgpu_plane *cursor_plane;
3528
3529 int res = -ENOMEM;
3530
3531 cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL);
3532 if (!cursor_plane)
3533 goto fail;
3534
3535 cursor_plane->base.type = DRM_PLANE_TYPE_CURSOR;
3536 res = amdgpu_dm_plane_init(dm, cursor_plane, 0);
3537
3538 acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL);
3539 if (!acrtc)
3540 goto fail;
3541
3542 res = drm_crtc_init_with_planes(
3543 dm->ddev,
3544 &acrtc->base,
3545 plane,
3546 &cursor_plane->base,
3547 &amdgpu_dm_crtc_funcs, NULL);
3548
3549 if (res)
3550 goto fail;
3551
3552 drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs);
3553
3554 /* Create (reset) the plane state */
3555 if (acrtc->base.funcs->reset)
3556 acrtc->base.funcs->reset(&acrtc->base);
3557
3558 acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size;
3559 acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size;
3560
3561 acrtc->crtc_id = crtc_index;
3562 acrtc->base.enabled = false;
3563 acrtc->otg_inst = -1;
3564
3565 dm->adev->mode_info.crtcs[crtc_index] = acrtc;
3566 drm_crtc_enable_color_mgmt(&acrtc->base, MAX_COLOR_LUT_ENTRIES,
3567 true, MAX_COLOR_LUT_ENTRIES);
3568 drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES);
3569
3570 return 0;
3571
3572 fail:
3573 kfree(acrtc);
3574 kfree(cursor_plane);
3575 return res;
3576 }
3577
3578
3579 static int to_drm_connector_type(enum signal_type st)
3580 {
3581 switch (st) {
3582 case SIGNAL_TYPE_HDMI_TYPE_A:
3583 return DRM_MODE_CONNECTOR_HDMIA;
3584 case SIGNAL_TYPE_EDP:
3585 return DRM_MODE_CONNECTOR_eDP;
3586 case SIGNAL_TYPE_LVDS:
3587 return DRM_MODE_CONNECTOR_LVDS;
3588 case SIGNAL_TYPE_RGB:
3589 return DRM_MODE_CONNECTOR_VGA;
3590 case SIGNAL_TYPE_DISPLAY_PORT:
3591 case SIGNAL_TYPE_DISPLAY_PORT_MST:
3592 return DRM_MODE_CONNECTOR_DisplayPort;
3593 case SIGNAL_TYPE_DVI_DUAL_LINK:
3594 case SIGNAL_TYPE_DVI_SINGLE_LINK:
3595 return DRM_MODE_CONNECTOR_DVID;
3596 case SIGNAL_TYPE_VIRTUAL:
3597 return DRM_MODE_CONNECTOR_VIRTUAL;
3598
3599 default:
3600 return DRM_MODE_CONNECTOR_Unknown;
3601 }
3602 }
3603
3604 static void amdgpu_dm_get_native_mode(struct drm_connector *connector)
3605 {
3606 const struct drm_connector_helper_funcs *helper =
3607 connector->helper_private;
3608 struct drm_encoder *encoder;
3609 struct amdgpu_encoder *amdgpu_encoder;
3610
3611 encoder = helper->best_encoder(connector);
3612
3613 if (encoder == NULL)
3614 return;
3615
3616 amdgpu_encoder = to_amdgpu_encoder(encoder);
3617
3618 amdgpu_encoder->native_mode.clock = 0;
3619
3620 if (!list_empty(&connector->probed_modes)) {
3621 struct drm_display_mode *preferred_mode = NULL;
3622
3623 list_for_each_entry(preferred_mode,
3624 &connector->probed_modes,
3625 head) {
3626 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED)
3627 amdgpu_encoder->native_mode = *preferred_mode;
3628
3629 break;
3630 }
3631
3632 }
3633 }
3634
3635 static struct drm_display_mode *
3636 amdgpu_dm_create_common_mode(struct drm_encoder *encoder,
3637 char *name,
3638 int hdisplay, int vdisplay)
3639 {
3640 struct drm_device *dev = encoder->dev;
3641 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3642 struct drm_display_mode *mode = NULL;
3643 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
3644
3645 mode = drm_mode_duplicate(dev, native_mode);
3646
3647 if (mode == NULL)
3648 return NULL;
3649
3650 mode->hdisplay = hdisplay;
3651 mode->vdisplay = vdisplay;
3652 mode->type &= ~DRM_MODE_TYPE_PREFERRED;
3653 strncpy(mode->name, name, DRM_DISPLAY_MODE_LEN);
3654
3655 return mode;
3656
3657 }
3658
3659 static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
3660 struct drm_connector *connector)
3661 {
3662 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
3663 struct drm_display_mode *mode = NULL;
3664 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
3665 struct amdgpu_dm_connector *amdgpu_dm_connector =
3666 to_amdgpu_dm_connector(connector);
3667 int i;
3668 int n;
3669 struct mode_size {
3670 char name[DRM_DISPLAY_MODE_LEN];
3671 int w;
3672 int h;
3673 } common_modes[] = {
3674 { "640x480", 640, 480},
3675 { "800x600", 800, 600},
3676 { "1024x768", 1024, 768},
3677 { "1280x720", 1280, 720},
3678 { "1280x800", 1280, 800},
3679 {"1280x1024", 1280, 1024},
3680 { "1440x900", 1440, 900},
3681 {"1680x1050", 1680, 1050},
3682 {"1600x1200", 1600, 1200},
3683 {"1920x1080", 1920, 1080},
3684 {"1920x1200", 1920, 1200}
3685 };
3686
3687 n = ARRAY_SIZE(common_modes);
3688
3689 for (i = 0; i < n; i++) {
3690 struct drm_display_mode *curmode = NULL;
3691 bool mode_existed = false;
3692
3693 if (common_modes[i].w > native_mode->hdisplay ||
3694 common_modes[i].h > native_mode->vdisplay ||
3695 (common_modes[i].w == native_mode->hdisplay &&
3696 common_modes[i].h == native_mode->vdisplay))
3697 continue;
3698
3699 list_for_each_entry(curmode, &connector->probed_modes, head) {
3700 if (common_modes[i].w == curmode->hdisplay &&
3701 common_modes[i].h == curmode->vdisplay) {
3702 mode_existed = true;
3703 break;
3704 }
3705 }
3706
3707 if (mode_existed)
3708 continue;
3709
3710 mode = amdgpu_dm_create_common_mode(encoder,
3711 common_modes[i].name, common_modes[i].w,
3712 common_modes[i].h);
3713 drm_mode_probed_add(connector, mode);
3714 amdgpu_dm_connector->num_modes++;
3715 }
3716 }
3717
3718 static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
3719 struct edid *edid)
3720 {
3721 struct amdgpu_dm_connector *amdgpu_dm_connector =
3722 to_amdgpu_dm_connector(connector);
3723
3724 if (edid) {
3725 /* empty probed_modes */
3726 INIT_LIST_HEAD(&connector->probed_modes);
3727 amdgpu_dm_connector->num_modes =
3728 drm_add_edid_modes(connector, edid);
3729
3730 amdgpu_dm_get_native_mode(connector);
3731 } else {
3732 amdgpu_dm_connector->num_modes = 0;
3733 }
3734 }
3735
3736 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
3737 {
3738 const struct drm_connector_helper_funcs *helper =
3739 connector->helper_private;
3740 struct amdgpu_dm_connector *amdgpu_dm_connector =
3741 to_amdgpu_dm_connector(connector);
3742 struct drm_encoder *encoder;
3743 struct edid *edid = amdgpu_dm_connector->edid;
3744
3745 encoder = helper->best_encoder(connector);
3746
3747 if (!edid || !drm_edid_is_valid(edid)) {
3748 amdgpu_dm_connector->num_modes =
3749 drm_add_modes_noedid(connector, 640, 480);
3750 } else {
3751 amdgpu_dm_connector_ddc_get_modes(connector, edid);
3752 amdgpu_dm_connector_add_common_modes(encoder, connector);
3753 }
3754 amdgpu_dm_fbc_init(connector);
3755
3756 return amdgpu_dm_connector->num_modes;
3757 }
3758
3759 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
3760 struct amdgpu_dm_connector *aconnector,
3761 int connector_type,
3762 struct dc_link *link,
3763 int link_index)
3764 {
3765 struct amdgpu_device *adev = dm->ddev->dev_private;
3766
3767 aconnector->connector_id = link_index;
3768 aconnector->dc_link = link;
3769 aconnector->base.interlace_allowed = false;
3770 aconnector->base.doublescan_allowed = false;
3771 aconnector->base.stereo_allowed = false;
3772 aconnector->base.dpms = DRM_MODE_DPMS_OFF;
3773 aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */
3774 mutex_init(&aconnector->hpd_lock);
3775
3776 /*
3777 * configure support HPD hot plug connector_>polled default value is 0
3778 * which means HPD hot plug not supported
3779 */
3780 switch (connector_type) {
3781 case DRM_MODE_CONNECTOR_HDMIA:
3782 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
3783 aconnector->base.ycbcr_420_allowed =
3784 link->link_enc->features.ycbcr420_supported ? true : false;
3785 break;
3786 case DRM_MODE_CONNECTOR_DisplayPort:
3787 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
3788 aconnector->base.ycbcr_420_allowed =
3789 link->link_enc->features.ycbcr420_supported ? true : false;
3790 break;
3791 case DRM_MODE_CONNECTOR_DVID:
3792 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
3793 break;
3794 default:
3795 break;
3796 }
3797
3798 drm_object_attach_property(&aconnector->base.base,
3799 dm->ddev->mode_config.scaling_mode_property,
3800 DRM_MODE_SCALE_NONE);
3801
3802 drm_object_attach_property(&aconnector->base.base,
3803 adev->mode_info.underscan_property,
3804 UNDERSCAN_OFF);
3805 drm_object_attach_property(&aconnector->base.base,
3806 adev->mode_info.underscan_hborder_property,
3807 0);
3808 drm_object_attach_property(&aconnector->base.base,
3809 adev->mode_info.underscan_vborder_property,
3810 0);
3811 drm_object_attach_property(&aconnector->base.base,
3812 adev->mode_info.max_bpc_property,
3813 0);
3814
3815 }
3816
3817 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
3818 struct i2c_msg *msgs, int num)
3819 {
3820 struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap);
3821 struct ddc_service *ddc_service = i2c->ddc_service;
3822 struct i2c_command cmd;
3823 int i;
3824 int result = -EIO;
3825
3826 cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL);
3827
3828 if (!cmd.payloads)
3829 return result;
3830
3831 cmd.number_of_payloads = num;
3832 cmd.engine = I2C_COMMAND_ENGINE_DEFAULT;
3833 cmd.speed = 100;
3834
3835 for (i = 0; i < num; i++) {
3836 cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
3837 cmd.payloads[i].address = msgs[i].addr;
3838 cmd.payloads[i].length = msgs[i].len;
3839 cmd.payloads[i].data = msgs[i].buf;
3840 }
3841
3842 if (dc_submit_i2c(
3843 ddc_service->ctx->dc,
3844 ddc_service->ddc_pin->hw_info.ddc_channel,
3845 &cmd))
3846 result = num;
3847
3848 kfree(cmd.payloads);
3849 return result;
3850 }
3851
3852 static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap)
3853 {
3854 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
3855 }
3856
3857 static const struct i2c_algorithm amdgpu_dm_i2c_algo = {
3858 .master_xfer = amdgpu_dm_i2c_xfer,
3859 .functionality = amdgpu_dm_i2c_func,
3860 };
3861
3862 static struct amdgpu_i2c_adapter *
3863 create_i2c(struct ddc_service *ddc_service,
3864 int link_index,
3865 int *res)
3866 {
3867 struct amdgpu_device *adev = ddc_service->ctx->driver_context;
3868 struct amdgpu_i2c_adapter *i2c;
3869
3870 i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL);
3871 if (!i2c)
3872 return NULL;
3873 i2c->base.owner = THIS_MODULE;
3874 i2c->base.class = I2C_CLASS_DDC;
3875 i2c->base.dev.parent = &adev->pdev->dev;
3876 i2c->base.algo = &amdgpu_dm_i2c_algo;
3877 snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
3878 i2c_set_adapdata(&i2c->base, i2c);
3879 i2c->ddc_service = ddc_service;
3880 i2c->ddc_service->ddc_pin->hw_info.ddc_channel = link_index;
3881
3882 return i2c;
3883 }
3884
3885
3886 /*
3887 * Note: this function assumes that dc_link_detect() was called for the
3888 * dc_link which will be represented by this aconnector.
3889 */
3890 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
3891 struct amdgpu_dm_connector *aconnector,
3892 uint32_t link_index,
3893 struct amdgpu_encoder *aencoder)
3894 {
3895 int res = 0;
3896 int connector_type;
3897 struct dc *dc = dm->dc;
3898 struct dc_link *link = dc_get_link_at_index(dc, link_index);
3899 struct amdgpu_i2c_adapter *i2c;
3900
3901 link->priv = aconnector;
3902
3903 DRM_DEBUG_DRIVER("%s()\n", __func__);
3904
3905 i2c = create_i2c(link->ddc, link->link_index, &res);
3906 if (!i2c) {
3907 DRM_ERROR("Failed to create i2c adapter data\n");
3908 return -ENOMEM;
3909 }
3910
3911 aconnector->i2c = i2c;
3912 res = i2c_add_adapter(&i2c->base);
3913
3914 if (res) {
3915 DRM_ERROR("Failed to register hw i2c %d\n", link->link_index);
3916 goto out_free;
3917 }
3918
3919 connector_type = to_drm_connector_type(link->connector_signal);
3920
3921 res = drm_connector_init(
3922 dm->ddev,
3923 &aconnector->base,
3924 &amdgpu_dm_connector_funcs,
3925 connector_type);
3926
3927 if (res) {
3928 DRM_ERROR("connector_init failed\n");
3929 aconnector->connector_id = -1;
3930 goto out_free;
3931 }
3932
3933 drm_connector_helper_add(
3934 &aconnector->base,
3935 &amdgpu_dm_connector_helper_funcs);
3936
3937 if (aconnector->base.funcs->reset)
3938 aconnector->base.funcs->reset(&aconnector->base);
3939
3940 amdgpu_dm_connector_init_helper(
3941 dm,
3942 aconnector,
3943 connector_type,
3944 link,
3945 link_index);
3946
3947 drm_connector_attach_encoder(
3948 &aconnector->base, &aencoder->base);
3949
3950 drm_connector_register(&aconnector->base);
3951 #if defined(CONFIG_DEBUG_FS)
3952 res = connector_debugfs_init(aconnector);
3953 if (res) {
3954 DRM_ERROR("Failed to create debugfs for connector");
3955 goto out_free;
3956 }
3957 #endif
3958
3959 if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
3960 || connector_type == DRM_MODE_CONNECTOR_eDP)
3961 amdgpu_dm_initialize_dp_connector(dm, aconnector);
3962
3963 out_free:
3964 if (res) {
3965 kfree(i2c);
3966 aconnector->i2c = NULL;
3967 }
3968 return res;
3969 }
3970
3971 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev)
3972 {
3973 switch (adev->mode_info.num_crtc) {
3974 case 1:
3975 return 0x1;
3976 case 2:
3977 return 0x3;
3978 case 3:
3979 return 0x7;
3980 case 4:
3981 return 0xf;
3982 case 5:
3983 return 0x1f;
3984 case 6:
3985 default:
3986 return 0x3f;
3987 }
3988 }
3989
3990 static int amdgpu_dm_encoder_init(struct drm_device *dev,
3991 struct amdgpu_encoder *aencoder,
3992 uint32_t link_index)
3993 {
3994 struct amdgpu_device *adev = dev->dev_private;
3995
3996 int res = drm_encoder_init(dev,
3997 &aencoder->base,
3998 &amdgpu_dm_encoder_funcs,
3999 DRM_MODE_ENCODER_TMDS,
4000 NULL);
4001
4002 aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
4003
4004 if (!res)
4005 aencoder->encoder_id = link_index;
4006 else
4007 aencoder->encoder_id = -1;
4008
4009 drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs);
4010
4011 return res;
4012 }
4013
4014 static void manage_dm_interrupts(struct amdgpu_device *adev,
4015 struct amdgpu_crtc *acrtc,
4016 bool enable)
4017 {
4018 /*
4019 * this is not correct translation but will work as soon as VBLANK
4020 * constant is the same as PFLIP
4021 */
4022 int irq_type =
4023 amdgpu_display_crtc_idx_to_irq_type(
4024 adev,
4025 acrtc->crtc_id);
4026
4027 if (enable) {
4028 drm_crtc_vblank_on(&acrtc->base);
4029 amdgpu_irq_get(
4030 adev,
4031 &adev->pageflip_irq,
4032 irq_type);
4033 } else {
4034
4035 amdgpu_irq_put(
4036 adev,
4037 &adev->pageflip_irq,
4038 irq_type);
4039 drm_crtc_vblank_off(&acrtc->base);
4040 }
4041 }
4042
4043 static bool
4044 is_scaling_state_different(const struct dm_connector_state *dm_state,
4045 const struct dm_connector_state *old_dm_state)
4046 {
4047 if (dm_state->scaling != old_dm_state->scaling)
4048 return true;
4049 if (!dm_state->underscan_enable && old_dm_state->underscan_enable) {
4050 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0)
4051 return true;
4052 } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) {
4053 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0)
4054 return true;
4055 } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder ||
4056 dm_state->underscan_vborder != old_dm_state->underscan_vborder)
4057 return true;
4058 return false;
4059 }
4060
4061 static void remove_stream(struct amdgpu_device *adev,
4062 struct amdgpu_crtc *acrtc,
4063 struct dc_stream_state *stream)
4064 {
4065 /* this is the update mode case */
4066
4067 acrtc->otg_inst = -1;
4068 acrtc->enabled = false;
4069 }
4070
4071 static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc,
4072 struct dc_cursor_position *position)
4073 {
4074 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
4075 int x, y;
4076 int xorigin = 0, yorigin = 0;
4077
4078 if (!crtc || !plane->state->fb) {
4079 position->enable = false;
4080 position->x = 0;
4081 position->y = 0;
4082 return 0;
4083 }
4084
4085 if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) ||
4086 (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) {
4087 DRM_ERROR("%s: bad cursor width or height %d x %d\n",
4088 __func__,
4089 plane->state->crtc_w,
4090 plane->state->crtc_h);
4091 return -EINVAL;
4092 }
4093
4094 x = plane->state->crtc_x;
4095 y = plane->state->crtc_y;
4096 /* avivo cursor are offset into the total surface */
4097 x += crtc->primary->state->src_x >> 16;
4098 y += crtc->primary->state->src_y >> 16;
4099 if (x < 0) {
4100 xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1);
4101 x = 0;
4102 }
4103 if (y < 0) {
4104 yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1);
4105 y = 0;
4106 }
4107 position->enable = true;
4108 position->x = x;
4109 position->y = y;
4110 position->x_hotspot = xorigin;
4111 position->y_hotspot = yorigin;
4112
4113 return 0;
4114 }
4115
4116 static void handle_cursor_update(struct drm_plane *plane,
4117 struct drm_plane_state *old_plane_state)
4118 {
4119 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb);
4120 struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc;
4121 struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL;
4122 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
4123 uint64_t address = afb ? afb->address : 0;
4124 struct dc_cursor_position position;
4125 struct dc_cursor_attributes attributes;
4126 int ret;
4127
4128 if (!plane->state->fb && !old_plane_state->fb)
4129 return;
4130
4131 DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n",
4132 __func__,
4133 amdgpu_crtc->crtc_id,
4134 plane->state->crtc_w,
4135 plane->state->crtc_h);
4136
4137 ret = get_cursor_position(plane, crtc, &position);
4138 if (ret)
4139 return;
4140
4141 if (!position.enable) {
4142 /* turn off cursor */
4143 if (crtc_state && crtc_state->stream)
4144 dc_stream_set_cursor_position(crtc_state->stream,
4145 &position);
4146 return;
4147 }
4148
4149 amdgpu_crtc->cursor_width = plane->state->crtc_w;
4150 amdgpu_crtc->cursor_height = plane->state->crtc_h;
4151
4152 attributes.address.high_part = upper_32_bits(address);
4153 attributes.address.low_part = lower_32_bits(address);
4154 attributes.width = plane->state->crtc_w;
4155 attributes.height = plane->state->crtc_h;
4156 attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA;
4157 attributes.rotation_angle = 0;
4158 attributes.attribute_flags.value = 0;
4159
4160 attributes.pitch = attributes.width;
4161
4162 if (crtc_state->stream) {
4163 if (!dc_stream_set_cursor_attributes(crtc_state->stream,
4164 &attributes))
4165 DRM_ERROR("DC failed to set cursor attributes\n");
4166
4167 if (!dc_stream_set_cursor_position(crtc_state->stream,
4168 &position))
4169 DRM_ERROR("DC failed to set cursor position\n");
4170 }
4171 }
4172
4173 static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
4174 {
4175
4176 assert_spin_locked(&acrtc->base.dev->event_lock);
4177 WARN_ON(acrtc->event);
4178
4179 acrtc->event = acrtc->base.state->event;
4180
4181 /* Set the flip status */
4182 acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
4183
4184 /* Mark this event as consumed */
4185 acrtc->base.state->event = NULL;
4186
4187 DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
4188 acrtc->crtc_id);
4189 }
4190
4191 /*
4192 * Executes flip
4193 *
4194 * Waits on all BO's fences and for proper vblank count
4195 */
4196 static void amdgpu_dm_do_flip(struct drm_crtc *crtc,
4197 struct drm_framebuffer *fb,
4198 uint32_t target,
4199 struct dc_state *state)
4200 {
4201 unsigned long flags;
4202 uint32_t target_vblank;
4203 int r, vpos, hpos;
4204 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4205 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb);
4206 struct amdgpu_bo *abo = gem_to_amdgpu_bo(fb->obj[0]);
4207 struct amdgpu_device *adev = crtc->dev->dev_private;
4208 bool async_flip = (crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
4209 struct dc_flip_addrs addr = { {0} };
4210 /* TODO eliminate or rename surface_update */
4211 struct dc_surface_update surface_updates[1] = { {0} };
4212 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
4213 struct dc_stream_status *stream_status;
4214
4215
4216 /* Prepare wait for target vblank early - before the fence-waits */
4217 target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) +
4218 amdgpu_get_vblank_counter_kms(crtc->dev, acrtc->crtc_id);
4219
4220 /*
4221 * TODO This might fail and hence better not used, wait
4222 * explicitly on fences instead
4223 * and in general should be called for
4224 * blocking commit to as per framework helpers
4225 */
4226 r = amdgpu_bo_reserve(abo, true);
4227 if (unlikely(r != 0)) {
4228 DRM_ERROR("failed to reserve buffer before flip\n");
4229 WARN_ON(1);
4230 }
4231
4232 /* Wait for all fences on this FB */
4233 WARN_ON(reservation_object_wait_timeout_rcu(abo->tbo.resv, true, false,
4234 MAX_SCHEDULE_TIMEOUT) < 0);
4235
4236 amdgpu_bo_unreserve(abo);
4237
4238 /*
4239 * Wait until we're out of the vertical blank period before the one
4240 * targeted by the flip
4241 */
4242 while ((acrtc->enabled &&
4243 (amdgpu_display_get_crtc_scanoutpos(adev->ddev, acrtc->crtc_id,
4244 0, &vpos, &hpos, NULL,
4245 NULL, &crtc->hwmode)
4246 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
4247 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
4248 (int)(target_vblank -
4249 amdgpu_get_vblank_counter_kms(adev->ddev, acrtc->crtc_id)) > 0)) {
4250 usleep_range(1000, 1100);
4251 }
4252
4253 /* Flip */
4254 spin_lock_irqsave(&crtc->dev->event_lock, flags);
4255
4256 WARN_ON(acrtc->pflip_status != AMDGPU_FLIP_NONE);
4257 WARN_ON(!acrtc_state->stream);
4258
4259 addr.address.grph.addr.low_part = lower_32_bits(afb->address);
4260 addr.address.grph.addr.high_part = upper_32_bits(afb->address);
4261 addr.flip_immediate = async_flip;
4262
4263
4264 if (acrtc->base.state->event)
4265 prepare_flip_isr(acrtc);
4266
4267 spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
4268
4269 stream_status = dc_stream_get_status(acrtc_state->stream);
4270 if (!stream_status) {
4271 DRM_ERROR("No stream status for CRTC: id=%d\n",
4272 acrtc->crtc_id);
4273 return;
4274 }
4275
4276 surface_updates->surface = stream_status->plane_states[0];
4277 if (!surface_updates->surface) {
4278 DRM_ERROR("No surface for CRTC: id=%d\n",
4279 acrtc->crtc_id);
4280 return;
4281 }
4282 surface_updates->flip_addr = &addr;
4283
4284 dc_commit_updates_for_stream(adev->dm.dc,
4285 surface_updates,
4286 1,
4287 acrtc_state->stream,
4288 NULL,
4289 &surface_updates->surface,
4290 state);
4291
4292 DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x \n",
4293 __func__,
4294 addr.address.grph.addr.high_part,
4295 addr.address.grph.addr.low_part);
4296 }
4297
4298 /*
4299 * TODO this whole function needs to go
4300 *
4301 * dc_surface_update is needlessly complex. See if we can just replace this
4302 * with a dc_plane_state and follow the atomic model a bit more closely here.
4303 */
4304 static bool commit_planes_to_stream(
4305 struct dc *dc,
4306 struct dc_plane_state **plane_states,
4307 uint8_t new_plane_count,
4308 struct dm_crtc_state *dm_new_crtc_state,
4309 struct dm_crtc_state *dm_old_crtc_state,
4310 struct dc_state *state)
4311 {
4312 /* no need to dynamically allocate this. it's pretty small */
4313 struct dc_surface_update updates[MAX_SURFACES];
4314 struct dc_flip_addrs *flip_addr;
4315 struct dc_plane_info *plane_info;
4316 struct dc_scaling_info *scaling_info;
4317 int i;
4318 struct dc_stream_state *dc_stream = dm_new_crtc_state->stream;
4319 struct dc_stream_update *stream_update =
4320 kzalloc(sizeof(struct dc_stream_update), GFP_KERNEL);
4321
4322 if (!stream_update) {
4323 BREAK_TO_DEBUGGER();
4324 return false;
4325 }
4326
4327 flip_addr = kcalloc(MAX_SURFACES, sizeof(struct dc_flip_addrs),
4328 GFP_KERNEL);
4329 plane_info = kcalloc(MAX_SURFACES, sizeof(struct dc_plane_info),
4330 GFP_KERNEL);
4331 scaling_info = kcalloc(MAX_SURFACES, sizeof(struct dc_scaling_info),
4332 GFP_KERNEL);
4333
4334 if (!flip_addr || !plane_info || !scaling_info) {
4335 kfree(flip_addr);
4336 kfree(plane_info);
4337 kfree(scaling_info);
4338 kfree(stream_update);
4339 return false;
4340 }
4341
4342 memset(updates, 0, sizeof(updates));
4343
4344 stream_update->src = dc_stream->src;
4345 stream_update->dst = dc_stream->dst;
4346 stream_update->out_transfer_func = dc_stream->out_transfer_func;
4347
4348 if (dm_new_crtc_state->freesync_enabled != dm_old_crtc_state->freesync_enabled) {
4349 stream_update->vrr_infopacket = &dc_stream->vrr_infopacket;
4350 stream_update->adjust = &dc_stream->adjust;
4351 }
4352
4353 for (i = 0; i < new_plane_count; i++) {
4354 updates[i].surface = plane_states[i];
4355 updates[i].gamma =
4356 (struct dc_gamma *)plane_states[i]->gamma_correction;
4357 updates[i].in_transfer_func = plane_states[i]->in_transfer_func;
4358 flip_addr[i].address = plane_states[i]->address;
4359 flip_addr[i].flip_immediate = plane_states[i]->flip_immediate;
4360 plane_info[i].color_space = plane_states[i]->color_space;
4361 plane_info[i].format = plane_states[i]->format;
4362 plane_info[i].plane_size = plane_states[i]->plane_size;
4363 plane_info[i].rotation = plane_states[i]->rotation;
4364 plane_info[i].horizontal_mirror = plane_states[i]->horizontal_mirror;
4365 plane_info[i].stereo_format = plane_states[i]->stereo_format;
4366 plane_info[i].tiling_info = plane_states[i]->tiling_info;
4367 plane_info[i].visible = plane_states[i]->visible;
4368 plane_info[i].per_pixel_alpha = plane_states[i]->per_pixel_alpha;
4369 plane_info[i].dcc = plane_states[i]->dcc;
4370 scaling_info[i].scaling_quality = plane_states[i]->scaling_quality;
4371 scaling_info[i].src_rect = plane_states[i]->src_rect;
4372 scaling_info[i].dst_rect = plane_states[i]->dst_rect;
4373 scaling_info[i].clip_rect = plane_states[i]->clip_rect;
4374
4375 updates[i].flip_addr = &flip_addr[i];
4376 updates[i].plane_info = &plane_info[i];
4377 updates[i].scaling_info = &scaling_info[i];
4378 }
4379
4380 dc_commit_updates_for_stream(
4381 dc,
4382 updates,
4383 new_plane_count,
4384 dc_stream, stream_update, plane_states, state);
4385
4386 kfree(flip_addr);
4387 kfree(plane_info);
4388 kfree(scaling_info);
4389 kfree(stream_update);
4390 return true;
4391 }
4392
4393 static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
4394 struct drm_device *dev,
4395 struct amdgpu_display_manager *dm,
4396 struct drm_crtc *pcrtc,
4397 bool *wait_for_vblank)
4398 {
4399 uint32_t i;
4400 struct drm_plane *plane;
4401 struct drm_plane_state *old_plane_state, *new_plane_state;
4402 struct dc_stream_state *dc_stream_attach;
4403 struct dc_plane_state *plane_states_constructed[MAX_SURFACES];
4404 struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
4405 struct drm_crtc_state *new_pcrtc_state =
4406 drm_atomic_get_new_crtc_state(state, pcrtc);
4407 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
4408 struct dm_crtc_state *dm_old_crtc_state =
4409 to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
4410 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
4411 int planes_count = 0;
4412 unsigned long flags;
4413
4414 /* update planes when needed */
4415 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
4416 struct drm_crtc *crtc = new_plane_state->crtc;
4417 struct drm_crtc_state *new_crtc_state;
4418 struct drm_framebuffer *fb = new_plane_state->fb;
4419 bool pflip_needed;
4420 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
4421
4422 if (plane->type == DRM_PLANE_TYPE_CURSOR) {
4423 handle_cursor_update(plane, old_plane_state);
4424 continue;
4425 }
4426
4427 if (!fb || !crtc || pcrtc != crtc)
4428 continue;
4429
4430 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
4431 if (!new_crtc_state->active)
4432 continue;
4433
4434 pflip_needed = !state->allow_modeset;
4435
4436 spin_lock_irqsave(&crtc->dev->event_lock, flags);
4437 if (acrtc_attach->pflip_status != AMDGPU_FLIP_NONE) {
4438 DRM_ERROR("%s: acrtc %d, already busy\n",
4439 __func__,
4440 acrtc_attach->crtc_id);
4441 /* In commit tail framework this cannot happen */
4442 WARN_ON(1);
4443 }
4444 spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
4445
4446 if (!pflip_needed || plane->type == DRM_PLANE_TYPE_OVERLAY) {
4447 WARN_ON(!dm_new_plane_state->dc_state);
4448
4449 plane_states_constructed[planes_count] = dm_new_plane_state->dc_state;
4450
4451 dc_stream_attach = acrtc_state->stream;
4452 planes_count++;
4453
4454 } else if (new_crtc_state->planes_changed) {
4455 /* Assume even ONE crtc with immediate flip means
4456 * entire can't wait for VBLANK
4457 * TODO Check if it's correct
4458 */
4459 *wait_for_vblank =
4460 new_pcrtc_state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC ?
4461 false : true;
4462
4463 /* TODO: Needs rework for multiplane flip */
4464 if (plane->type == DRM_PLANE_TYPE_PRIMARY)
4465 drm_crtc_vblank_get(crtc);
4466
4467 amdgpu_dm_do_flip(
4468 crtc,
4469 fb,
4470 (uint32_t)drm_crtc_vblank_count(crtc) + *wait_for_vblank,
4471 dm_state->context);
4472 }
4473
4474 }
4475
4476 if (planes_count) {
4477 unsigned long flags;
4478
4479 if (new_pcrtc_state->event) {
4480
4481 drm_crtc_vblank_get(pcrtc);
4482
4483 spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
4484 prepare_flip_isr(acrtc_attach);
4485 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
4486 }
4487
4488 dc_stream_attach->adjust = acrtc_state->adjust;
4489 dc_stream_attach->vrr_infopacket = acrtc_state->vrr_infopacket;
4490
4491 if (false == commit_planes_to_stream(dm->dc,
4492 plane_states_constructed,
4493 planes_count,
4494 acrtc_state,
4495 dm_old_crtc_state,
4496 dm_state->context))
4497 dm_error("%s: Failed to attach plane!\n", __func__);
4498 } else {
4499 /*TODO BUG Here should go disable planes on CRTC. */
4500 }
4501 }
4502
4503 /*
4504 * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC
4505 * @crtc_state: the DRM CRTC state
4506 * @stream_state: the DC stream state.
4507 *
4508 * Copy the mirrored transient state flags from DRM, to DC. It is used to bring
4509 * a dc_stream_state's flags in sync with a drm_crtc_state's flags.
4510 */
4511 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state,
4512 struct dc_stream_state *stream_state)
4513 {
4514 stream_state->mode_changed = crtc_state->mode_changed;
4515 }
4516
4517 static int amdgpu_dm_atomic_commit(struct drm_device *dev,
4518 struct drm_atomic_state *state,
4519 bool nonblock)
4520 {
4521 struct drm_crtc *crtc;
4522 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
4523 struct amdgpu_device *adev = dev->dev_private;
4524 int i;
4525
4526 /*
4527 * We evade vblanks and pflips on crtc that
4528 * should be changed. We do it here to flush & disable
4529 * interrupts before drm_swap_state is called in drm_atomic_helper_commit
4530 * it will update crtc->dm_crtc_state->stream pointer which is used in
4531 * the ISRs.
4532 */
4533 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
4534 struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
4535 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4536
4537 if (drm_atomic_crtc_needs_modeset(new_crtc_state) && dm_old_crtc_state->stream)
4538 manage_dm_interrupts(adev, acrtc, false);
4539 }
4540 /*
4541 * Add check here for SoC's that support hardware cursor plane, to
4542 * unset legacy_cursor_update
4543 */
4544
4545 return drm_atomic_helper_commit(dev, state, nonblock);
4546
4547 /*TODO Handle EINTR, reenable IRQ*/
4548 }
4549
4550 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
4551 {
4552 struct drm_device *dev = state->dev;
4553 struct amdgpu_device *adev = dev->dev_private;
4554 struct amdgpu_display_manager *dm = &adev->dm;
4555 struct dm_atomic_state *dm_state;
4556 uint32_t i, j;
4557 struct drm_crtc *crtc;
4558 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
4559 unsigned long flags;
4560 bool wait_for_vblank = true;
4561 struct drm_connector *connector;
4562 struct drm_connector_state *old_con_state, *new_con_state;
4563 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
4564 int crtc_disable_count = 0;
4565
4566 drm_atomic_helper_update_legacy_modeset_state(dev, state);
4567
4568 dm_state = to_dm_atomic_state(state);
4569
4570 /* update changed items */
4571 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
4572 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4573
4574 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4575 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
4576
4577 DRM_DEBUG_DRIVER(
4578 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
4579 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
4580 "connectors_changed:%d\n",
4581 acrtc->crtc_id,
4582 new_crtc_state->enable,
4583 new_crtc_state->active,
4584 new_crtc_state->planes_changed,
4585 new_crtc_state->mode_changed,
4586 new_crtc_state->active_changed,
4587 new_crtc_state->connectors_changed);
4588
4589 /* Copy all transient state flags into dc state */
4590 if (dm_new_crtc_state->stream) {
4591 amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base,
4592 dm_new_crtc_state->stream);
4593 }
4594
4595 /* handles headless hotplug case, updating new_state and
4596 * aconnector as needed
4597 */
4598
4599 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
4600
4601 DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
4602
4603 if (!dm_new_crtc_state->stream) {
4604 /*
4605 * this could happen because of issues with
4606 * userspace notifications delivery.
4607 * In this case userspace tries to set mode on
4608 * display which is disconnected in fact.
4609 * dc_sink is NULL in this case on aconnector.
4610 * We expect reset mode will come soon.
4611 *
4612 * This can also happen when unplug is done
4613 * during resume sequence ended
4614 *
4615 * In this case, we want to pretend we still
4616 * have a sink to keep the pipe running so that
4617 * hw state is consistent with the sw state
4618 */
4619 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
4620 __func__, acrtc->base.base.id);
4621 continue;
4622 }
4623
4624 if (dm_old_crtc_state->stream)
4625 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
4626
4627 pm_runtime_get_noresume(dev->dev);
4628
4629 acrtc->enabled = true;
4630 acrtc->hw_mode = new_crtc_state->mode;
4631 crtc->hwmode = new_crtc_state->mode;
4632 } else if (modereset_required(new_crtc_state)) {
4633 DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
4634
4635 /* i.e. reset mode */
4636 if (dm_old_crtc_state->stream)
4637 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
4638 }
4639 } /* for_each_crtc_in_state() */
4640
4641 if (dm_state->context) {
4642 dm_enable_per_frame_crtc_master_sync(dm_state->context);
4643 WARN_ON(!dc_commit_state(dm->dc, dm_state->context));
4644 }
4645
4646 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
4647 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4648
4649 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4650
4651 if (dm_new_crtc_state->stream != NULL) {
4652 const struct dc_stream_status *status =
4653 dc_stream_get_status(dm_new_crtc_state->stream);
4654
4655 if (!status)
4656 DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc);
4657 else
4658 acrtc->otg_inst = status->primary_otg_inst;
4659 }
4660 }
4661
4662 /* Handle scaling and underscan changes*/
4663 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
4664 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
4665 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
4666 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
4667 struct dc_stream_status *status = NULL;
4668
4669 if (acrtc) {
4670 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
4671 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
4672 }
4673
4674 /* Skip any modesets/resets */
4675 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
4676 continue;
4677
4678 /* Skip anything that is not scaling or underscan changes */
4679 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
4680 continue;
4681
4682 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4683
4684 update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
4685 dm_new_con_state, (struct dc_stream_state *)dm_new_crtc_state->stream);
4686
4687 if (!dm_new_crtc_state->stream)
4688 continue;
4689
4690 status = dc_stream_get_status(dm_new_crtc_state->stream);
4691 WARN_ON(!status);
4692 WARN_ON(!status->plane_count);
4693
4694 dm_new_crtc_state->stream->adjust = dm_new_crtc_state->adjust;
4695 dm_new_crtc_state->stream->vrr_infopacket = dm_new_crtc_state->vrr_infopacket;
4696
4697 /*TODO How it works with MPO ?*/
4698 if (!commit_planes_to_stream(
4699 dm->dc,
4700 status->plane_states,
4701 status->plane_count,
4702 dm_new_crtc_state,
4703 to_dm_crtc_state(old_crtc_state),
4704 dm_state->context))
4705 dm_error("%s: Failed to update stream scaling!\n", __func__);
4706 }
4707
4708 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
4709 new_crtc_state, i) {
4710 /*
4711 * loop to enable interrupts on newly arrived crtc
4712 */
4713 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4714 bool modeset_needed;
4715
4716 if (old_crtc_state->active && !new_crtc_state->active)
4717 crtc_disable_count++;
4718
4719 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4720 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
4721 modeset_needed = modeset_required(
4722 new_crtc_state,
4723 dm_new_crtc_state->stream,
4724 dm_old_crtc_state->stream);
4725
4726 if (dm_new_crtc_state->stream == NULL || !modeset_needed)
4727 continue;
4728
4729 manage_dm_interrupts(adev, acrtc, true);
4730 }
4731
4732 /* update planes when needed per crtc*/
4733 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) {
4734 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4735
4736 if (dm_new_crtc_state->stream)
4737 amdgpu_dm_commit_planes(state, dev, dm, crtc, &wait_for_vblank);
4738 }
4739
4740
4741 /*
4742 * send vblank event on all events not handled in flip and
4743 * mark consumed event for drm_atomic_helper_commit_hw_done
4744 */
4745 spin_lock_irqsave(&adev->ddev->event_lock, flags);
4746 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
4747
4748 if (new_crtc_state->event)
4749 drm_send_event_locked(dev, &new_crtc_state->event->base);
4750
4751 new_crtc_state->event = NULL;
4752 }
4753 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
4754
4755
4756 if (wait_for_vblank)
4757 drm_atomic_helper_wait_for_flip_done(dev, state);
4758
4759 /*
4760 * FIXME:
4761 * Delay hw_done() until flip_done() is signaled. This is to block
4762 * another commit from freeing the CRTC state while we're still
4763 * waiting on flip_done.
4764 */
4765 drm_atomic_helper_commit_hw_done(state);
4766
4767 drm_atomic_helper_cleanup_planes(dev, state);
4768
4769 /*
4770 * Finally, drop a runtime PM reference for each newly disabled CRTC,
4771 * so we can put the GPU into runtime suspend if we're not driving any
4772 * displays anymore
4773 */
4774 for (i = 0; i < crtc_disable_count; i++)
4775 pm_runtime_put_autosuspend(dev->dev);
4776 pm_runtime_mark_last_busy(dev->dev);
4777 }
4778
4779
4780 static int dm_force_atomic_commit(struct drm_connector *connector)
4781 {
4782 int ret = 0;
4783 struct drm_device *ddev = connector->dev;
4784 struct drm_atomic_state *state = drm_atomic_state_alloc(ddev);
4785 struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
4786 struct drm_plane *plane = disconnected_acrtc->base.primary;
4787 struct drm_connector_state *conn_state;
4788 struct drm_crtc_state *crtc_state;
4789 struct drm_plane_state *plane_state;
4790
4791 if (!state)
4792 return -ENOMEM;
4793
4794 state->acquire_ctx = ddev->mode_config.acquire_ctx;
4795
4796 /* Construct an atomic state to restore previous display setting */
4797
4798 /*
4799 * Attach connectors to drm_atomic_state
4800 */
4801 conn_state = drm_atomic_get_connector_state(state, connector);
4802
4803 ret = PTR_ERR_OR_ZERO(conn_state);
4804 if (ret)
4805 goto err;
4806
4807 /* Attach crtc to drm_atomic_state*/
4808 crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base);
4809
4810 ret = PTR_ERR_OR_ZERO(crtc_state);
4811 if (ret)
4812 goto err;
4813
4814 /* force a restore */
4815 crtc_state->mode_changed = true;
4816
4817 /* Attach plane to drm_atomic_state */
4818 plane_state = drm_atomic_get_plane_state(state, plane);
4819
4820 ret = PTR_ERR_OR_ZERO(plane_state);
4821 if (ret)
4822 goto err;
4823
4824
4825 /* Call commit internally with the state we just constructed */
4826 ret = drm_atomic_commit(state);
4827 if (!ret)
4828 return 0;
4829
4830 err:
4831 DRM_ERROR("Restoring old state failed with %i\n", ret);
4832 drm_atomic_state_put(state);
4833
4834 return ret;
4835 }
4836
4837 /*
4838 * This function handles all cases when set mode does not come upon hotplug.
4839 * This includes when a display is unplugged then plugged back into the
4840 * same port and when running without usermode desktop manager supprot
4841 */
4842 void dm_restore_drm_connector_state(struct drm_device *dev,
4843 struct drm_connector *connector)
4844 {
4845 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
4846 struct amdgpu_crtc *disconnected_acrtc;
4847 struct dm_crtc_state *acrtc_state;
4848
4849 if (!aconnector->dc_sink || !connector->state || !connector->encoder)
4850 return;
4851
4852 disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
4853 if (!disconnected_acrtc)
4854 return;
4855
4856 acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state);
4857 if (!acrtc_state->stream)
4858 return;
4859
4860 /*
4861 * If the previous sink is not released and different from the current,
4862 * we deduce we are in a state where we can not rely on usermode call
4863 * to turn on the display, so we do it here
4864 */
4865 if (acrtc_state->stream->sink != aconnector->dc_sink)
4866 dm_force_atomic_commit(&aconnector->base);
4867 }
4868
4869 /*
4870 * Grabs all modesetting locks to serialize against any blocking commits,
4871 * Waits for completion of all non blocking commits.
4872 */
4873 static int do_aquire_global_lock(struct drm_device *dev,
4874 struct drm_atomic_state *state)
4875 {
4876 struct drm_crtc *crtc;
4877 struct drm_crtc_commit *commit;
4878 long ret;
4879
4880 /*
4881 * Adding all modeset locks to aquire_ctx will
4882 * ensure that when the framework release it the
4883 * extra locks we are locking here will get released to
4884 */
4885 ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
4886 if (ret)
4887 return ret;
4888
4889 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
4890 spin_lock(&crtc->commit_lock);
4891 commit = list_first_entry_or_null(&crtc->commit_list,
4892 struct drm_crtc_commit, commit_entry);
4893 if (commit)
4894 drm_crtc_commit_get(commit);
4895 spin_unlock(&crtc->commit_lock);
4896
4897 if (!commit)
4898 continue;
4899
4900 /*
4901 * Make sure all pending HW programming completed and
4902 * page flips done
4903 */
4904 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ);
4905
4906 if (ret > 0)
4907 ret = wait_for_completion_interruptible_timeout(
4908 &commit->flip_done, 10*HZ);
4909
4910 if (ret == 0)
4911 DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done "
4912 "timed out\n", crtc->base.id, crtc->name);
4913
4914 drm_crtc_commit_put(commit);
4915 }
4916
4917 return ret < 0 ? ret : 0;
4918 }
4919
4920 void set_freesync_on_stream(struct amdgpu_display_manager *dm,
4921 struct dm_crtc_state *new_crtc_state,
4922 struct dm_connector_state *new_con_state,
4923 struct dc_stream_state *new_stream)
4924 {
4925 struct mod_freesync_config config = {0};
4926 struct mod_vrr_params vrr = {0};
4927 struct dc_info_packet vrr_infopacket = {0};
4928 struct amdgpu_dm_connector *aconnector =
4929 to_amdgpu_dm_connector(new_con_state->base.connector);
4930
4931 if (new_con_state->freesync_capable &&
4932 new_con_state->freesync_enable) {
4933 config.state = new_crtc_state->freesync_enabled ?
4934 VRR_STATE_ACTIVE_VARIABLE :
4935 VRR_STATE_INACTIVE;
4936 config.min_refresh_in_uhz =
4937 aconnector->min_vfreq * 1000000;
4938 config.max_refresh_in_uhz =
4939 aconnector->max_vfreq * 1000000;
4940 config.vsif_supported = true;
4941 }
4942
4943 mod_freesync_build_vrr_params(dm->freesync_module,
4944 new_stream,
4945 &config, &vrr);
4946
4947 mod_freesync_build_vrr_infopacket(dm->freesync_module,
4948 new_stream,
4949 &vrr,
4950 packet_type_fs1,
4951 NULL,
4952 &vrr_infopacket);
4953
4954 new_crtc_state->adjust = vrr.adjust;
4955 new_crtc_state->vrr_infopacket = vrr_infopacket;
4956 }
4957
4958 static int dm_update_crtcs_state(struct amdgpu_display_manager *dm,
4959 struct drm_atomic_state *state,
4960 bool enable,
4961 bool *lock_and_validation_needed)
4962 {
4963 struct drm_crtc *crtc;
4964 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
4965 int i;
4966 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
4967 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
4968 struct dc_stream_state *new_stream;
4969 int ret = 0;
4970
4971 /*
4972 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set
4973 * update changed items
4974 */
4975 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
4976 struct amdgpu_crtc *acrtc = NULL;
4977 struct amdgpu_dm_connector *aconnector = NULL;
4978 struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL;
4979 struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL;
4980 struct drm_plane_state *new_plane_state = NULL;
4981
4982 new_stream = NULL;
4983
4984 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
4985 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
4986 acrtc = to_amdgpu_crtc(crtc);
4987
4988 new_plane_state = drm_atomic_get_new_plane_state(state, new_crtc_state->crtc->primary);
4989
4990 if (new_crtc_state->enable && new_plane_state && !new_plane_state->fb) {
4991 ret = -EINVAL;
4992 goto fail;
4993 }
4994
4995 aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
4996
4997 /* TODO This hack should go away */
4998 if (aconnector && enable) {
4999 /* Make sure fake sink is created in plug-in scenario */
5000 drm_new_conn_state = drm_atomic_get_new_connector_state(state,
5001 &aconnector->base);
5002 drm_old_conn_state = drm_atomic_get_old_connector_state(state,
5003 &aconnector->base);
5004
5005 if (IS_ERR(drm_new_conn_state)) {
5006 ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
5007 break;
5008 }
5009
5010 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
5011 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state);
5012
5013 new_stream = create_stream_for_sink(aconnector,
5014 &new_crtc_state->mode,
5015 dm_new_conn_state);
5016
5017 /*
5018 * we can have no stream on ACTION_SET if a display
5019 * was disconnected during S3, in this case it is not an
5020 * error, the OS will be updated after detection, and
5021 * will do the right thing on next atomic commit
5022 */
5023
5024 if (!new_stream) {
5025 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
5026 __func__, acrtc->base.base.id);
5027 break;
5028 }
5029
5030 set_freesync_on_stream(dm, dm_new_crtc_state,
5031 dm_new_conn_state, new_stream);
5032
5033 if (dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
5034 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) {
5035 new_crtc_state->mode_changed = false;
5036 DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d",
5037 new_crtc_state->mode_changed);
5038 }
5039 }
5040
5041 if (dm_old_crtc_state->freesync_enabled != dm_new_crtc_state->freesync_enabled)
5042 new_crtc_state->mode_changed = true;
5043
5044 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
5045 goto next_crtc;
5046
5047 DRM_DEBUG_DRIVER(
5048 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
5049 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
5050 "connectors_changed:%d\n",
5051 acrtc->crtc_id,
5052 new_crtc_state->enable,
5053 new_crtc_state->active,
5054 new_crtc_state->planes_changed,
5055 new_crtc_state->mode_changed,
5056 new_crtc_state->active_changed,
5057 new_crtc_state->connectors_changed);
5058
5059 /* Remove stream for any changed/disabled CRTC */
5060 if (!enable) {
5061
5062 if (!dm_old_crtc_state->stream)
5063 goto next_crtc;
5064
5065 DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n",
5066 crtc->base.id);
5067
5068 /* i.e. reset mode */
5069 if (dc_remove_stream_from_ctx(
5070 dm->dc,
5071 dm_state->context,
5072 dm_old_crtc_state->stream) != DC_OK) {
5073 ret = -EINVAL;
5074 goto fail;
5075 }
5076
5077 dc_stream_release(dm_old_crtc_state->stream);
5078 dm_new_crtc_state->stream = NULL;
5079
5080 *lock_and_validation_needed = true;
5081
5082 } else {/* Add stream for any updated/enabled CRTC */
5083 /*
5084 * Quick fix to prevent NULL pointer on new_stream when
5085 * added MST connectors not found in existing crtc_state in the chained mode
5086 * TODO: need to dig out the root cause of that
5087 */
5088 if (!aconnector || (!aconnector->dc_sink && aconnector->mst_port))
5089 goto next_crtc;
5090
5091 if (modereset_required(new_crtc_state))
5092 goto next_crtc;
5093
5094 if (modeset_required(new_crtc_state, new_stream,
5095 dm_old_crtc_state->stream)) {
5096
5097 WARN_ON(dm_new_crtc_state->stream);
5098
5099 dm_new_crtc_state->stream = new_stream;
5100
5101 dc_stream_retain(new_stream);
5102
5103 DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n",
5104 crtc->base.id);
5105
5106 if (dc_add_stream_to_ctx(
5107 dm->dc,
5108 dm_state->context,
5109 dm_new_crtc_state->stream) != DC_OK) {
5110 ret = -EINVAL;
5111 goto fail;
5112 }
5113
5114 *lock_and_validation_needed = true;
5115 }
5116 }
5117
5118 next_crtc:
5119 /* Release extra reference */
5120 if (new_stream)
5121 dc_stream_release(new_stream);
5122
5123 /*
5124 * We want to do dc stream updates that do not require a
5125 * full modeset below.
5126 */
5127 if (!(enable && aconnector && new_crtc_state->enable &&
5128 new_crtc_state->active))
5129 continue;
5130 /*
5131 * Given above conditions, the dc state cannot be NULL because:
5132 * 1. We're in the process of enabling CRTCs (just been added
5133 * to the dc context, or already is on the context)
5134 * 2. Has a valid connector attached, and
5135 * 3. Is currently active and enabled.
5136 * => The dc stream state currently exists.
5137 */
5138 BUG_ON(dm_new_crtc_state->stream == NULL);
5139
5140 /* Scaling or underscan settings */
5141 if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state))
5142 update_stream_scaling_settings(
5143 &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);
5144
5145 /*
5146 * Color management settings. We also update color properties
5147 * when a modeset is needed, to ensure it gets reprogrammed.
5148 */
5149 if (dm_new_crtc_state->base.color_mgmt_changed ||
5150 drm_atomic_crtc_needs_modeset(new_crtc_state)) {
5151 ret = amdgpu_dm_set_regamma_lut(dm_new_crtc_state);
5152 if (ret)
5153 goto fail;
5154 amdgpu_dm_set_ctm(dm_new_crtc_state);
5155 }
5156
5157
5158 }
5159
5160 return ret;
5161
5162 fail:
5163 if (new_stream)
5164 dc_stream_release(new_stream);
5165 return ret;
5166 }
5167
5168 static int dm_update_planes_state(struct dc *dc,
5169 struct drm_atomic_state *state,
5170 bool enable,
5171 bool *lock_and_validation_needed)
5172 {
5173 struct drm_crtc *new_plane_crtc, *old_plane_crtc;
5174 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
5175 struct drm_plane *plane;
5176 struct drm_plane_state *old_plane_state, *new_plane_state;
5177 struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
5178 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
5179 struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
5180 int i ;
5181 /* TODO return page_flip_needed() function */
5182 bool pflip_needed = !state->allow_modeset;
5183 int ret = 0;
5184
5185
5186 /* Add new planes, in reverse order as DC expectation */
5187 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
5188 new_plane_crtc = new_plane_state->crtc;
5189 old_plane_crtc = old_plane_state->crtc;
5190 dm_new_plane_state = to_dm_plane_state(new_plane_state);
5191 dm_old_plane_state = to_dm_plane_state(old_plane_state);
5192
5193 /*TODO Implement atomic check for cursor plane */
5194 if (plane->type == DRM_PLANE_TYPE_CURSOR)
5195 continue;
5196
5197 /* Remove any changed/removed planes */
5198 if (!enable) {
5199 if (pflip_needed &&
5200 plane->type != DRM_PLANE_TYPE_OVERLAY)
5201 continue;
5202
5203 if (!old_plane_crtc)
5204 continue;
5205
5206 old_crtc_state = drm_atomic_get_old_crtc_state(
5207 state, old_plane_crtc);
5208 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
5209
5210 if (!dm_old_crtc_state->stream)
5211 continue;
5212
5213 DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n",
5214 plane->base.id, old_plane_crtc->base.id);
5215
5216 if (!dc_remove_plane_from_context(
5217 dc,
5218 dm_old_crtc_state->stream,
5219 dm_old_plane_state->dc_state,
5220 dm_state->context)) {
5221
5222 ret = EINVAL;
5223 return ret;
5224 }
5225
5226
5227 dc_plane_state_release(dm_old_plane_state->dc_state);
5228 dm_new_plane_state->dc_state = NULL;
5229
5230 *lock_and_validation_needed = true;
5231
5232 } else { /* Add new planes */
5233 struct dc_plane_state *dc_new_plane_state;
5234
5235 if (drm_atomic_plane_disabling(plane->state, new_plane_state))
5236 continue;
5237
5238 if (!new_plane_crtc)
5239 continue;
5240
5241 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc);
5242 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
5243
5244 if (!dm_new_crtc_state->stream)
5245 continue;
5246
5247 if (pflip_needed &&
5248 plane->type != DRM_PLANE_TYPE_OVERLAY)
5249 continue;
5250
5251 WARN_ON(dm_new_plane_state->dc_state);
5252
5253 dc_new_plane_state = dc_create_plane_state(dc);
5254 if (!dc_new_plane_state)
5255 return -ENOMEM;
5256
5257 DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n",
5258 plane->base.id, new_plane_crtc->base.id);
5259
5260 ret = fill_plane_attributes(
5261 new_plane_crtc->dev->dev_private,
5262 dc_new_plane_state,
5263 new_plane_state,
5264 new_crtc_state);
5265 if (ret) {
5266 dc_plane_state_release(dc_new_plane_state);
5267 return ret;
5268 }
5269
5270 /*
5271 * Any atomic check errors that occur after this will
5272 * not need a release. The plane state will be attached
5273 * to the stream, and therefore part of the atomic
5274 * state. It'll be released when the atomic state is
5275 * cleaned.
5276 */
5277 if (!dc_add_plane_to_context(
5278 dc,
5279 dm_new_crtc_state->stream,
5280 dc_new_plane_state,
5281 dm_state->context)) {
5282
5283 dc_plane_state_release(dc_new_plane_state);
5284 return -EINVAL;
5285 }
5286
5287 dm_new_plane_state->dc_state = dc_new_plane_state;
5288
5289 /* Tell DC to do a full surface update every time there
5290 * is a plane change. Inefficient, but works for now.
5291 */
5292 dm_new_plane_state->dc_state->update_flags.bits.full_update = 1;
5293
5294 *lock_and_validation_needed = true;
5295 }
5296 }
5297
5298
5299 return ret;
5300 }
5301 enum surface_update_type dm_determine_update_type_for_commit(struct dc *dc, struct drm_atomic_state *state)
5302 {
5303
5304
5305 int i, j, num_plane;
5306 struct drm_plane_state *old_plane_state, *new_plane_state;
5307 struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state;
5308 struct drm_crtc *new_plane_crtc, *old_plane_crtc;
5309 struct drm_plane *plane;
5310
5311 struct drm_crtc *crtc;
5312 struct drm_crtc_state *new_crtc_state, *old_crtc_state;
5313 struct dm_crtc_state *new_dm_crtc_state, *old_dm_crtc_state;
5314 struct dc_stream_status *status = NULL;
5315
5316 struct dc_surface_update *updates = kzalloc(MAX_SURFACES * sizeof(struct dc_surface_update), GFP_KERNEL);
5317 struct dc_plane_state *surface = kzalloc(MAX_SURFACES * sizeof(struct dc_plane_state), GFP_KERNEL);
5318 struct dc_stream_update stream_update;
5319 enum surface_update_type update_type = UPDATE_TYPE_FAST;
5320
5321
5322 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
5323 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
5324 old_dm_crtc_state = to_dm_crtc_state(old_crtc_state);
5325 num_plane = 0;
5326
5327 if (new_dm_crtc_state->stream) {
5328
5329 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, j) {
5330 new_plane_crtc = new_plane_state->crtc;
5331 old_plane_crtc = old_plane_state->crtc;
5332 new_dm_plane_state = to_dm_plane_state(new_plane_state);
5333 old_dm_plane_state = to_dm_plane_state(old_plane_state);
5334
5335 if (plane->type == DRM_PLANE_TYPE_CURSOR)
5336 continue;
5337
5338 if (!state->allow_modeset)
5339 continue;
5340
5341 if (crtc == new_plane_crtc) {
5342 updates[num_plane].surface = &surface[num_plane];
5343
5344 if (new_crtc_state->mode_changed) {
5345 updates[num_plane].surface->src_rect =
5346 new_dm_plane_state->dc_state->src_rect;
5347 updates[num_plane].surface->dst_rect =
5348 new_dm_plane_state->dc_state->dst_rect;
5349 updates[num_plane].surface->rotation =
5350 new_dm_plane_state->dc_state->rotation;
5351 updates[num_plane].surface->in_transfer_func =
5352 new_dm_plane_state->dc_state->in_transfer_func;
5353 stream_update.dst = new_dm_crtc_state->stream->dst;
5354 stream_update.src = new_dm_crtc_state->stream->src;
5355 }
5356
5357 if (new_crtc_state->color_mgmt_changed) {
5358 updates[num_plane].gamma =
5359 new_dm_plane_state->dc_state->gamma_correction;
5360 updates[num_plane].in_transfer_func =
5361 new_dm_plane_state->dc_state->in_transfer_func;
5362 stream_update.gamut_remap =
5363 &new_dm_crtc_state->stream->gamut_remap_matrix;
5364 stream_update.out_transfer_func =
5365 new_dm_crtc_state->stream->out_transfer_func;
5366 }
5367
5368 num_plane++;
5369 }
5370 }
5371
5372 if (num_plane > 0) {
5373 status = dc_stream_get_status(new_dm_crtc_state->stream);
5374 update_type = dc_check_update_surfaces_for_stream(dc, updates, num_plane,
5375 &stream_update, status);
5376
5377 if (update_type > UPDATE_TYPE_MED) {
5378 update_type = UPDATE_TYPE_FULL;
5379 goto ret;
5380 }
5381 }
5382
5383 } else if (!new_dm_crtc_state->stream && old_dm_crtc_state->stream) {
5384 update_type = UPDATE_TYPE_FULL;
5385 goto ret;
5386 }
5387 }
5388
5389 ret:
5390 kfree(updates);
5391 kfree(surface);
5392
5393 return update_type;
5394 }
5395
5396 static int amdgpu_dm_atomic_check(struct drm_device *dev,
5397 struct drm_atomic_state *state)
5398 {
5399 struct amdgpu_device *adev = dev->dev_private;
5400 struct dc *dc = adev->dm.dc;
5401 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
5402 struct drm_connector *connector;
5403 struct drm_connector_state *old_con_state, *new_con_state;
5404 struct drm_crtc *crtc;
5405 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
5406 enum surface_update_type update_type = UPDATE_TYPE_FAST;
5407 enum surface_update_type overall_update_type = UPDATE_TYPE_FAST;
5408
5409 int ret, i;
5410
5411 /*
5412 * This bool will be set for true for any modeset/reset
5413 * or plane update which implies non fast surface update.
5414 */
5415 bool lock_and_validation_needed = false;
5416
5417 ret = drm_atomic_helper_check_modeset(dev, state);
5418 if (ret)
5419 goto fail;
5420
5421 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
5422 struct dm_crtc_state *dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
5423 struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
5424
5425 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
5426 !new_crtc_state->color_mgmt_changed &&
5427 (dm_old_crtc_state->freesync_enabled == dm_new_crtc_state->freesync_enabled))
5428 continue;
5429
5430 if (!new_crtc_state->enable)
5431 continue;
5432
5433 ret = drm_atomic_add_affected_connectors(state, crtc);
5434 if (ret)
5435 return ret;
5436
5437 ret = drm_atomic_add_affected_planes(state, crtc);
5438 if (ret)
5439 goto fail;
5440 }
5441
5442 dm_state->context = dc_create_state();
5443 ASSERT(dm_state->context);
5444 dc_resource_state_copy_construct_current(dc, dm_state->context);
5445
5446 /* Remove exiting planes if they are modified */
5447 ret = dm_update_planes_state(dc, state, false, &lock_and_validation_needed);
5448 if (ret) {
5449 goto fail;
5450 }
5451
5452 /* Disable all crtcs which require disable */
5453 ret = dm_update_crtcs_state(&adev->dm, state, false, &lock_and_validation_needed);
5454 if (ret) {
5455 goto fail;
5456 }
5457
5458 /* Enable all crtcs which require enable */
5459 ret = dm_update_crtcs_state(&adev->dm, state, true, &lock_and_validation_needed);
5460 if (ret) {
5461 goto fail;
5462 }
5463
5464 /* Add new/modified planes */
5465 ret = dm_update_planes_state(dc, state, true, &lock_and_validation_needed);
5466 if (ret) {
5467 goto fail;
5468 }
5469
5470 /* Run this here since we want to validate the streams we created */
5471 ret = drm_atomic_helper_check_planes(dev, state);
5472 if (ret)
5473 goto fail;
5474
5475 /* Check scaling and underscan changes*/
5476 /* TODO Removed scaling changes validation due to inability to commit
5477 * new stream into context w\o causing full reset. Need to
5478 * decide how to handle.
5479 */
5480 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
5481 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
5482 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
5483 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
5484
5485 /* Skip any modesets/resets */
5486 if (!acrtc || drm_atomic_crtc_needs_modeset(
5487 drm_atomic_get_new_crtc_state(state, &acrtc->base)))
5488 continue;
5489
5490 /* Skip any thing not scale or underscan changes */
5491 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
5492 continue;
5493
5494 overall_update_type = UPDATE_TYPE_FULL;
5495 lock_and_validation_needed = true;
5496 }
5497
5498 /*
5499 * For full updates case when
5500 * removing/adding/updating streams on one CRTC while flipping
5501 * on another CRTC,
5502 * acquiring global lock will guarantee that any such full
5503 * update commit
5504 * will wait for completion of any outstanding flip using DRMs
5505 * synchronization events.
5506 */
5507 update_type = dm_determine_update_type_for_commit(dc, state);
5508
5509 if (overall_update_type < update_type)
5510 overall_update_type = update_type;
5511
5512 /*
5513 * lock_and_validation_needed was an old way to determine if we need to set
5514 * the global lock. Leaving it in to check if we broke any corner cases
5515 * lock_and_validation_needed true = UPDATE_TYPE_FULL or UPDATE_TYPE_MED
5516 * lock_and_validation_needed false = UPDATE_TYPE_FAST
5517 */
5518 if (lock_and_validation_needed && overall_update_type <= UPDATE_TYPE_FAST)
5519 WARN(1, "Global lock should be Set, overall_update_type should be UPDATE_TYPE_MED or UPDATE_TYPE_FULL");
5520 else if (!lock_and_validation_needed && overall_update_type > UPDATE_TYPE_FAST)
5521 WARN(1, "Global lock should NOT be set, overall_update_type should be UPDATE_TYPE_FAST");
5522
5523
5524 if (overall_update_type > UPDATE_TYPE_FAST) {
5525
5526 ret = do_aquire_global_lock(dev, state);
5527 if (ret)
5528 goto fail;
5529
5530 if (dc_validate_global_state(dc, dm_state->context) != DC_OK) {
5531 ret = -EINVAL;
5532 goto fail;
5533 }
5534 }
5535
5536 /* Must be success */
5537 WARN_ON(ret);
5538 return ret;
5539
5540 fail:
5541 if (ret == -EDEADLK)
5542 DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n");
5543 else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
5544 DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
5545 else
5546 DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
5547
5548 return ret;
5549 }
5550
5551 static bool is_dp_capable_without_timing_msa(struct dc *dc,
5552 struct amdgpu_dm_connector *amdgpu_dm_connector)
5553 {
5554 uint8_t dpcd_data;
5555 bool capable = false;
5556
5557 if (amdgpu_dm_connector->dc_link &&
5558 dm_helpers_dp_read_dpcd(
5559 NULL,
5560 amdgpu_dm_connector->dc_link,
5561 DP_DOWN_STREAM_PORT_COUNT,
5562 &dpcd_data,
5563 sizeof(dpcd_data))) {
5564 capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false;
5565 }
5566
5567 return capable;
5568 }
5569 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
5570 struct edid *edid)
5571 {
5572 int i;
5573 bool edid_check_required;
5574 struct detailed_timing *timing;
5575 struct detailed_non_pixel *data;
5576 struct detailed_data_monitor_range *range;
5577 struct amdgpu_dm_connector *amdgpu_dm_connector =
5578 to_amdgpu_dm_connector(connector);
5579 struct dm_connector_state *dm_con_state;
5580
5581 struct drm_device *dev = connector->dev;
5582 struct amdgpu_device *adev = dev->dev_private;
5583
5584 if (!connector->state) {
5585 DRM_ERROR("%s - Connector has no state", __func__);
5586 return;
5587 }
5588
5589 if (!edid) {
5590 dm_con_state = to_dm_connector_state(connector->state);
5591
5592 amdgpu_dm_connector->min_vfreq = 0;
5593 amdgpu_dm_connector->max_vfreq = 0;
5594 amdgpu_dm_connector->pixel_clock_mhz = 0;
5595
5596 dm_con_state->freesync_capable = false;
5597 dm_con_state->freesync_enable = false;
5598 return;
5599 }
5600
5601 dm_con_state = to_dm_connector_state(connector->state);
5602
5603 edid_check_required = false;
5604 if (!amdgpu_dm_connector->dc_sink) {
5605 DRM_ERROR("dc_sink NULL, could not add free_sync module.\n");
5606 return;
5607 }
5608 if (!adev->dm.freesync_module)
5609 return;
5610 /*
5611 * if edid non zero restrict freesync only for dp and edp
5612 */
5613 if (edid) {
5614 if (amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT
5615 || amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_EDP) {
5616 edid_check_required = is_dp_capable_without_timing_msa(
5617 adev->dm.dc,
5618 amdgpu_dm_connector);
5619 }
5620 }
5621 dm_con_state->freesync_capable = false;
5622 if (edid_check_required == true && (edid->version > 1 ||
5623 (edid->version == 1 && edid->revision > 1))) {
5624 for (i = 0; i < 4; i++) {
5625
5626 timing = &edid->detailed_timings[i];
5627 data = &timing->data.other_data;
5628 range = &data->data.range;
5629 /*
5630 * Check if monitor has continuous frequency mode
5631 */
5632 if (data->type != EDID_DETAIL_MONITOR_RANGE)
5633 continue;
5634 /*
5635 * Check for flag range limits only. If flag == 1 then
5636 * no additional timing information provided.
5637 * Default GTF, GTF Secondary curve and CVT are not
5638 * supported
5639 */
5640 if (range->flags != 1)
5641 continue;
5642
5643 amdgpu_dm_connector->min_vfreq = range->min_vfreq;
5644 amdgpu_dm_connector->max_vfreq = range->max_vfreq;
5645 amdgpu_dm_connector->pixel_clock_mhz =
5646 range->pixel_clock_mhz * 10;
5647 break;
5648 }
5649
5650 if (amdgpu_dm_connector->max_vfreq -
5651 amdgpu_dm_connector->min_vfreq > 10) {
5652
5653 dm_con_state->freesync_capable = true;
5654 }
5655 }
5656 }
5657
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