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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / drm / amd / display / amdgpu_dm / amdgpu_dm.c
blob9402374d2466d345bbca41a908cf5ec7bd28e341
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 /* The caprices of the preprocessor require that this be declared right here */
27 #define CREATE_TRACE_POINTS
28
29 #include "dm_services_types.h"
30 #include "dc.h"
31 #include "dc/inc/core_types.h"
32 #include "dal_asic_id.h"
33 #include "dmub/inc/dmub_srv.h"
34 #include "dc/inc/hw/dmcu.h"
35 #include "dc/inc/hw/abm.h"
36 #include "dc/dc_dmub_srv.h"
37
38 #include "vid.h"
39 #include "amdgpu.h"
40 #include "amdgpu_display.h"
41 #include "amdgpu_ucode.h"
42 #include "atom.h"
43 #include "amdgpu_dm.h"
44 #ifdef CONFIG_DRM_AMD_DC_HDCP
45 #include "amdgpu_dm_hdcp.h"
46 #include <drm/drm_hdcp.h>
47 #endif
48 #include "amdgpu_pm.h"
49
50 #include "amd_shared.h"
51 #include "amdgpu_dm_irq.h"
52 #include "dm_helpers.h"
53 #include "amdgpu_dm_mst_types.h"
54 #if defined(CONFIG_DEBUG_FS)
55 #include "amdgpu_dm_debugfs.h"
56 #endif
57
58 #include "ivsrcid/ivsrcid_vislands30.h"
59
60 #include <linux/module.h>
61 #include <linux/moduleparam.h>
62 #include <linux/version.h>
63 #include <linux/types.h>
64 #include <linux/pm_runtime.h>
65 #include <linux/pci.h>
66 #include <linux/firmware.h>
67 #include <linux/component.h>
68
69 #include <drm/drm_atomic.h>
70 #include <drm/drm_atomic_uapi.h>
71 #include <drm/drm_atomic_helper.h>
72 #include <drm/drm_dp_mst_helper.h>
73 #include <drm/drm_fb_helper.h>
74 #include <drm/drm_fourcc.h>
75 #include <drm/drm_edid.h>
76 #include <drm/drm_vblank.h>
77 #include <drm/drm_audio_component.h>
78 #include <drm/drm_hdcp.h>
79
80 #if defined(CONFIG_DRM_AMD_DC_DCN)
81 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
82
83 #include "dcn/dcn_1_0_offset.h"
84 #include "dcn/dcn_1_0_sh_mask.h"
85 #include "soc15_hw_ip.h"
86 #include "vega10_ip_offset.h"
87
88 #include "soc15_common.h"
89 #endif
90
91 #include "modules/inc/mod_freesync.h"
92 #include "modules/power/power_helpers.h"
93 #include "modules/inc/mod_info_packet.h"
94
95 #define FIRMWARE_RENOIR_DMUB "amdgpu/renoir_dmcub.bin"
96 MODULE_FIRMWARE(FIRMWARE_RENOIR_DMUB);
97
98 #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin"
99 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU);
100
101 /* Number of bytes in PSP header for firmware. */
102 #define PSP_HEADER_BYTES 0x100
103
104 /* Number of bytes in PSP footer for firmware. */
105 #define PSP_FOOTER_BYTES 0x100
106
107 /**
108 * DOC: overview
109 *
110 * The AMDgpu display manager, **amdgpu_dm** (or even simpler,
111 * **dm**) sits between DRM and DC. It acts as a liason, converting DRM
112 * requests into DC requests, and DC responses into DRM responses.
113 *
114 * The root control structure is &struct amdgpu_display_manager.
115 */
116
117 /* basic init/fini API */
118 static int amdgpu_dm_init(struct amdgpu_device *adev);
119 static void amdgpu_dm_fini(struct amdgpu_device *adev);
120
121 /*
122 * initializes drm_device display related structures, based on the information
123 * provided by DAL. The drm strcutures are: drm_crtc, drm_connector,
124 * drm_encoder, drm_mode_config
125 *
126 * Returns 0 on success
127 */
128 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
129 /* removes and deallocates the drm structures, created by the above function */
130 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
131
132 static void
133 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector);
134
135 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
136 struct drm_plane *plane,
137 unsigned long possible_crtcs,
138 const struct dc_plane_cap *plane_cap);
139 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
140 struct drm_plane *plane,
141 uint32_t link_index);
142 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
143 struct amdgpu_dm_connector *amdgpu_dm_connector,
144 uint32_t link_index,
145 struct amdgpu_encoder *amdgpu_encoder);
146 static int amdgpu_dm_encoder_init(struct drm_device *dev,
147 struct amdgpu_encoder *aencoder,
148 uint32_t link_index);
149
150 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector);
151
152 static int amdgpu_dm_atomic_commit(struct drm_device *dev,
153 struct drm_atomic_state *state,
154 bool nonblock);
155
156 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state);
157
158 static int amdgpu_dm_atomic_check(struct drm_device *dev,
159 struct drm_atomic_state *state);
160
161 static void handle_cursor_update(struct drm_plane *plane,
162 struct drm_plane_state *old_plane_state);
163
164 static void amdgpu_dm_set_psr_caps(struct dc_link *link);
165 static bool amdgpu_dm_psr_enable(struct dc_stream_state *stream);
166 static bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream);
167 static bool amdgpu_dm_psr_disable(struct dc_stream_state *stream);
168
169
170 /*
171 * dm_vblank_get_counter
172 *
173 * @brief
174 * Get counter for number of vertical blanks
175 *
176 * @param
177 * struct amdgpu_device *adev - [in] desired amdgpu device
178 * int disp_idx - [in] which CRTC to get the counter from
179 *
180 * @return
181 * Counter for vertical blanks
182 */
183 static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc)
184 {
185 if (crtc >= adev->mode_info.num_crtc)
186 return 0;
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
193 if (acrtc_state->stream == NULL) {
194 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
195 crtc);
196 return 0;
197 }
198
199 return dc_stream_get_vblank_counter(acrtc_state->stream);
200 }
201 }
202
203 static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
204 u32 *vbl, u32 *position)
205 {
206 uint32_t v_blank_start, v_blank_end, h_position, v_position;
207
208 if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
209 return -EINVAL;
210 else {
211 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
212 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(
213 acrtc->base.state);
214
215 if (acrtc_state->stream == NULL) {
216 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
217 crtc);
218 return 0;
219 }
220
221 /*
222 * TODO rework base driver to use values directly.
223 * for now parse it back into reg-format
224 */
225 dc_stream_get_scanoutpos(acrtc_state->stream,
226 &v_blank_start,
227 &v_blank_end,
228 &h_position,
229 &v_position);
230
231 *position = v_position | (h_position << 16);
232 *vbl = v_blank_start | (v_blank_end << 16);
233 }
234
235 return 0;
236 }
237
238 static bool dm_is_idle(void *handle)
239 {
240 /* XXX todo */
241 return true;
242 }
243
244 static int dm_wait_for_idle(void *handle)
245 {
246 /* XXX todo */
247 return 0;
248 }
249
250 static bool dm_check_soft_reset(void *handle)
251 {
252 return false;
253 }
254
255 static int dm_soft_reset(void *handle)
256 {
257 /* XXX todo */
258 return 0;
259 }
260
261 static struct amdgpu_crtc *
262 get_crtc_by_otg_inst(struct amdgpu_device *adev,
263 int otg_inst)
264 {
265 struct drm_device *dev = adev->ddev;
266 struct drm_crtc *crtc;
267 struct amdgpu_crtc *amdgpu_crtc;
268
269 if (otg_inst == -1) {
270 WARN_ON(1);
271 return adev->mode_info.crtcs[0];
272 }
273
274 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
275 amdgpu_crtc = to_amdgpu_crtc(crtc);
276
277 if (amdgpu_crtc->otg_inst == otg_inst)
278 return amdgpu_crtc;
279 }
280
281 return NULL;
282 }
283
284 static inline bool amdgpu_dm_vrr_active(struct dm_crtc_state *dm_state)
285 {
286 return dm_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE ||
287 dm_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED;
288 }
289
290 /**
291 * dm_pflip_high_irq() - Handle pageflip interrupt
292 * @interrupt_params: ignored
293 *
294 * Handles the pageflip interrupt by notifying all interested parties
295 * that the pageflip has been completed.
296 */
297 static void dm_pflip_high_irq(void *interrupt_params)
298 {
299 struct amdgpu_crtc *amdgpu_crtc;
300 struct common_irq_params *irq_params = interrupt_params;
301 struct amdgpu_device *adev = irq_params->adev;
302 unsigned long flags;
303 struct drm_pending_vblank_event *e;
304 struct dm_crtc_state *acrtc_state;
305 uint32_t vpos, hpos, v_blank_start, v_blank_end;
306 bool vrr_active;
307
308 amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP);
309
310 /* IRQ could occur when in initial stage */
311 /* TODO work and BO cleanup */
312 if (amdgpu_crtc == NULL) {
313 DRM_DEBUG_DRIVER("CRTC is null, returning.\n");
314 return;
315 }
316
317 spin_lock_irqsave(&adev->ddev->event_lock, flags);
318
319 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
320 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n",
321 amdgpu_crtc->pflip_status,
322 AMDGPU_FLIP_SUBMITTED,
323 amdgpu_crtc->crtc_id,
324 amdgpu_crtc);
325 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
326 return;
327 }
328
329 /* page flip completed. */
330 e = amdgpu_crtc->event;
331 amdgpu_crtc->event = NULL;
332
333 if (!e)
334 WARN_ON(1);
335
336 acrtc_state = to_dm_crtc_state(amdgpu_crtc->base.state);
337 vrr_active = amdgpu_dm_vrr_active(acrtc_state);
338
339 /* Fixed refresh rate, or VRR scanout position outside front-porch? */
340 if (!vrr_active ||
341 !dc_stream_get_scanoutpos(acrtc_state->stream, &v_blank_start,
342 &v_blank_end, &hpos, &vpos) ||
343 (vpos < v_blank_start)) {
344 /* Update to correct count and vblank timestamp if racing with
345 * vblank irq. This also updates to the correct vblank timestamp
346 * even in VRR mode, as scanout is past the front-porch atm.
347 */
348 drm_crtc_accurate_vblank_count(&amdgpu_crtc->base);
349
350 /* Wake up userspace by sending the pageflip event with proper
351 * count and timestamp of vblank of flip completion.
352 */
353 if (e) {
354 drm_crtc_send_vblank_event(&amdgpu_crtc->base, e);
355
356 /* Event sent, so done with vblank for this flip */
357 drm_crtc_vblank_put(&amdgpu_crtc->base);
358 }
359 } else if (e) {
360 /* VRR active and inside front-porch: vblank count and
361 * timestamp for pageflip event will only be up to date after
362 * drm_crtc_handle_vblank() has been executed from late vblank
363 * irq handler after start of back-porch (vline 0). We queue the
364 * pageflip event for send-out by drm_crtc_handle_vblank() with
365 * updated timestamp and count, once it runs after us.
366 *
367 * We need to open-code this instead of using the helper
368 * drm_crtc_arm_vblank_event(), as that helper would
369 * call drm_crtc_accurate_vblank_count(), which we must
370 * not call in VRR mode while we are in front-porch!
371 */
372
373 /* sequence will be replaced by real count during send-out. */
374 e->sequence = drm_crtc_vblank_count(&amdgpu_crtc->base);
375 e->pipe = amdgpu_crtc->crtc_id;
376
377 list_add_tail(&e->base.link, &adev->ddev->vblank_event_list);
378 e = NULL;
379 }
380
381 /* Keep track of vblank of this flip for flip throttling. We use the
382 * cooked hw counter, as that one incremented at start of this vblank
383 * of pageflip completion, so last_flip_vblank is the forbidden count
384 * for queueing new pageflips if vsync + VRR is enabled.
385 */
386 amdgpu_crtc->last_flip_vblank = amdgpu_get_vblank_counter_kms(adev->ddev,
387 amdgpu_crtc->crtc_id);
388
389 amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
390 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
391
392 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n",
393 amdgpu_crtc->crtc_id, amdgpu_crtc,
394 vrr_active, (int) !e);
395 }
396
397 static void dm_vupdate_high_irq(void *interrupt_params)
398 {
399 struct common_irq_params *irq_params = interrupt_params;
400 struct amdgpu_device *adev = irq_params->adev;
401 struct amdgpu_crtc *acrtc;
402 struct dm_crtc_state *acrtc_state;
403 unsigned long flags;
404
405 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VUPDATE);
406
407 if (acrtc) {
408 acrtc_state = to_dm_crtc_state(acrtc->base.state);
409
410 DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
411 amdgpu_dm_vrr_active(acrtc_state));
412
413 /* Core vblank handling is done here after end of front-porch in
414 * vrr mode, as vblank timestamping will give valid results
415 * while now done after front-porch. This will also deliver
416 * page-flip completion events that have been queued to us
417 * if a pageflip happened inside front-porch.
418 */
419 if (amdgpu_dm_vrr_active(acrtc_state)) {
420 drm_crtc_handle_vblank(&acrtc->base);
421
422 /* BTR processing for pre-DCE12 ASICs */
423 if (acrtc_state->stream &&
424 adev->family < AMDGPU_FAMILY_AI) {
425 spin_lock_irqsave(&adev->ddev->event_lock, flags);
426 mod_freesync_handle_v_update(
427 adev->dm.freesync_module,
428 acrtc_state->stream,
429 &acrtc_state->vrr_params);
430
431 dc_stream_adjust_vmin_vmax(
432 adev->dm.dc,
433 acrtc_state->stream,
434 &acrtc_state->vrr_params.adjust);
435 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
436 }
437 }
438 }
439 }
440
441 /**
442 * dm_crtc_high_irq() - Handles CRTC interrupt
443 * @interrupt_params: ignored
444 *
445 * Handles the CRTC/VSYNC interrupt by notfying DRM's VBLANK
446 * event handler.
447 */
448 static void dm_crtc_high_irq(void *interrupt_params)
449 {
450 struct common_irq_params *irq_params = interrupt_params;
451 struct amdgpu_device *adev = irq_params->adev;
452 struct amdgpu_crtc *acrtc;
453 struct dm_crtc_state *acrtc_state;
454 unsigned long flags;
455
456 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
457
458 if (acrtc) {
459 acrtc_state = to_dm_crtc_state(acrtc->base.state);
460
461 DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
462 amdgpu_dm_vrr_active(acrtc_state));
463
464 /* Core vblank handling at start of front-porch is only possible
465 * in non-vrr mode, as only there vblank timestamping will give
466 * valid results while done in front-porch. Otherwise defer it
467 * to dm_vupdate_high_irq after end of front-porch.
468 */
469 if (!amdgpu_dm_vrr_active(acrtc_state))
470 drm_crtc_handle_vblank(&acrtc->base);
471
472 /* Following stuff must happen at start of vblank, for crc
473 * computation and below-the-range btr support in vrr mode.
474 */
475 amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
476
477 if (acrtc_state->stream && adev->family >= AMDGPU_FAMILY_AI &&
478 acrtc_state->vrr_params.supported &&
479 acrtc_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE) {
480 spin_lock_irqsave(&adev->ddev->event_lock, flags);
481 mod_freesync_handle_v_update(
482 adev->dm.freesync_module,
483 acrtc_state->stream,
484 &acrtc_state->vrr_params);
485
486 dc_stream_adjust_vmin_vmax(
487 adev->dm.dc,
488 acrtc_state->stream,
489 &acrtc_state->vrr_params.adjust);
490 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
491 }
492 }
493 }
494
495 #if defined(CONFIG_DRM_AMD_DC_DCN)
496 /**
497 * dm_dcn_crtc_high_irq() - Handles VStartup interrupt for DCN generation ASICs
498 * @interrupt params - interrupt parameters
499 *
500 * Notify DRM's vblank event handler at VSTARTUP
501 *
502 * Unlike DCE hardware, we trigger the handler at VSTARTUP. at which:
503 * * We are close enough to VUPDATE - the point of no return for hw
504 * * We are in the fixed portion of variable front porch when vrr is enabled
505 * * We are before VUPDATE, where double-buffered vrr registers are swapped
506 *
507 * It is therefore the correct place to signal vblank, send user flip events,
508 * and update VRR.
509 */
510 static void dm_dcn_crtc_high_irq(void *interrupt_params)
511 {
512 struct common_irq_params *irq_params = interrupt_params;
513 struct amdgpu_device *adev = irq_params->adev;
514 struct amdgpu_crtc *acrtc;
515 struct dm_crtc_state *acrtc_state;
516 unsigned long flags;
517
518 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
519
520 if (!acrtc)
521 return;
522
523 acrtc_state = to_dm_crtc_state(acrtc->base.state);
524
525 DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
526 amdgpu_dm_vrr_active(acrtc_state));
527
528 amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
529 drm_crtc_handle_vblank(&acrtc->base);
530
531 spin_lock_irqsave(&adev->ddev->event_lock, flags);
532
533 if (acrtc_state->vrr_params.supported &&
534 acrtc_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE) {
535 mod_freesync_handle_v_update(
536 adev->dm.freesync_module,
537 acrtc_state->stream,
538 &acrtc_state->vrr_params);
539
540 dc_stream_adjust_vmin_vmax(
541 adev->dm.dc,
542 acrtc_state->stream,
543 &acrtc_state->vrr_params.adjust);
544 }
545
546 if (acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED) {
547 if (acrtc->event) {
548 drm_crtc_send_vblank_event(&acrtc->base, acrtc->event);
549 acrtc->event = NULL;
550 drm_crtc_vblank_put(&acrtc->base);
551 }
552 acrtc->pflip_status = AMDGPU_FLIP_NONE;
553 }
554
555 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
556 }
557 #endif
558
559 static int dm_set_clockgating_state(void *handle,
560 enum amd_clockgating_state state)
561 {
562 return 0;
563 }
564
565 static int dm_set_powergating_state(void *handle,
566 enum amd_powergating_state state)
567 {
568 return 0;
569 }
570
571 /* Prototypes of private functions */
572 static int dm_early_init(void* handle);
573
574 /* Allocate memory for FBC compressed data */
575 static void amdgpu_dm_fbc_init(struct drm_connector *connector)
576 {
577 struct drm_device *dev = connector->dev;
578 struct amdgpu_device *adev = dev->dev_private;
579 struct dm_comressor_info *compressor = &adev->dm.compressor;
580 struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector);
581 struct drm_display_mode *mode;
582 unsigned long max_size = 0;
583
584 if (adev->dm.dc->fbc_compressor == NULL)
585 return;
586
587 if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP)
588 return;
589
590 if (compressor->bo_ptr)
591 return;
592
593
594 list_for_each_entry(mode, &connector->modes, head) {
595 if (max_size < mode->htotal * mode->vtotal)
596 max_size = mode->htotal * mode->vtotal;
597 }
598
599 if (max_size) {
600 int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE,
601 AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr,
602 &compressor->gpu_addr, &compressor->cpu_addr);
603
604 if (r)
605 DRM_ERROR("DM: Failed to initialize FBC\n");
606 else {
607 adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr;
608 DRM_INFO("DM: FBC alloc %lu\n", max_size*4);
609 }
610
611 }
612
613 }
614
615 static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port,
616 int pipe, bool *enabled,
617 unsigned char *buf, int max_bytes)
618 {
619 struct drm_device *dev = dev_get_drvdata(kdev);
620 struct amdgpu_device *adev = dev->dev_private;
621 struct drm_connector *connector;
622 struct drm_connector_list_iter conn_iter;
623 struct amdgpu_dm_connector *aconnector;
624 int ret = 0;
625
626 *enabled = false;
627
628 mutex_lock(&adev->dm.audio_lock);
629
630 drm_connector_list_iter_begin(dev, &conn_iter);
631 drm_for_each_connector_iter(connector, &conn_iter) {
632 aconnector = to_amdgpu_dm_connector(connector);
633 if (aconnector->audio_inst != port)
634 continue;
635
636 *enabled = true;
637 ret = drm_eld_size(connector->eld);
638 memcpy(buf, connector->eld, min(max_bytes, ret));
639
640 break;
641 }
642 drm_connector_list_iter_end(&conn_iter);
643
644 mutex_unlock(&adev->dm.audio_lock);
645
646 DRM_DEBUG_KMS("Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled);
647
648 return ret;
649 }
650
651 static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = {
652 .get_eld = amdgpu_dm_audio_component_get_eld,
653 };
654
655 static int amdgpu_dm_audio_component_bind(struct device *kdev,
656 struct device *hda_kdev, void *data)
657 {
658 struct drm_device *dev = dev_get_drvdata(kdev);
659 struct amdgpu_device *adev = dev->dev_private;
660 struct drm_audio_component *acomp = data;
661
662 acomp->ops = &amdgpu_dm_audio_component_ops;
663 acomp->dev = kdev;
664 adev->dm.audio_component = acomp;
665
666 return 0;
667 }
668
669 static void amdgpu_dm_audio_component_unbind(struct device *kdev,
670 struct device *hda_kdev, void *data)
671 {
672 struct drm_device *dev = dev_get_drvdata(kdev);
673 struct amdgpu_device *adev = dev->dev_private;
674 struct drm_audio_component *acomp = data;
675
676 acomp->ops = NULL;
677 acomp->dev = NULL;
678 adev->dm.audio_component = NULL;
679 }
680
681 static const struct component_ops amdgpu_dm_audio_component_bind_ops = {
682 .bind = amdgpu_dm_audio_component_bind,
683 .unbind = amdgpu_dm_audio_component_unbind,
684 };
685
686 static int amdgpu_dm_audio_init(struct amdgpu_device *adev)
687 {
688 int i, ret;
689
690 if (!amdgpu_audio)
691 return 0;
692
693 adev->mode_info.audio.enabled = true;
694
695 adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count;
696
697 for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
698 adev->mode_info.audio.pin[i].channels = -1;
699 adev->mode_info.audio.pin[i].rate = -1;
700 adev->mode_info.audio.pin[i].bits_per_sample = -1;
701 adev->mode_info.audio.pin[i].status_bits = 0;
702 adev->mode_info.audio.pin[i].category_code = 0;
703 adev->mode_info.audio.pin[i].connected = false;
704 adev->mode_info.audio.pin[i].id =
705 adev->dm.dc->res_pool->audios[i]->inst;
706 adev->mode_info.audio.pin[i].offset = 0;
707 }
708
709 ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops);
710 if (ret < 0)
711 return ret;
712
713 adev->dm.audio_registered = true;
714
715 return 0;
716 }
717
718 static void amdgpu_dm_audio_fini(struct amdgpu_device *adev)
719 {
720 if (!amdgpu_audio)
721 return;
722
723 if (!adev->mode_info.audio.enabled)
724 return;
725
726 if (adev->dm.audio_registered) {
727 component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops);
728 adev->dm.audio_registered = false;
729 }
730
731 /* TODO: Disable audio? */
732
733 adev->mode_info.audio.enabled = false;
734 }
735
736 void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin)
737 {
738 struct drm_audio_component *acomp = adev->dm.audio_component;
739
740 if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) {
741 DRM_DEBUG_KMS("Notify ELD: %d\n", pin);
742
743 acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
744 pin, -1);
745 }
746 }
747
748 static int dm_dmub_hw_init(struct amdgpu_device *adev)
749 {
750 const struct dmcub_firmware_header_v1_0 *hdr;
751 struct dmub_srv *dmub_srv = adev->dm.dmub_srv;
752 struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info;
753 const struct firmware *dmub_fw = adev->dm.dmub_fw;
754 struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;
755 struct abm *abm = adev->dm.dc->res_pool->abm;
756 struct dmub_srv_hw_params hw_params;
757 enum dmub_status status;
758 const unsigned char *fw_inst_const, *fw_bss_data;
759 uint32_t i, fw_inst_const_size, fw_bss_data_size;
760 bool has_hw_support;
761
762 if (!dmub_srv)
763 /* DMUB isn't supported on the ASIC. */
764 return 0;
765
766 if (!fb_info) {
767 DRM_ERROR("No framebuffer info for DMUB service.\n");
768 return -EINVAL;
769 }
770
771 if (!dmub_fw) {
772 /* Firmware required for DMUB support. */
773 DRM_ERROR("No firmware provided for DMUB.\n");
774 return -EINVAL;
775 }
776
777 status = dmub_srv_has_hw_support(dmub_srv, &has_hw_support);
778 if (status != DMUB_STATUS_OK) {
779 DRM_ERROR("Error checking HW support for DMUB: %d\n", status);
780 return -EINVAL;
781 }
782
783 if (!has_hw_support) {
784 DRM_INFO("DMUB unsupported on ASIC\n");
785 return 0;
786 }
787
788 hdr = (const struct dmcub_firmware_header_v1_0 *)dmub_fw->data;
789
790 fw_inst_const = dmub_fw->data +
791 le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
792 PSP_HEADER_BYTES;
793
794 fw_bss_data = dmub_fw->data +
795 le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
796 le32_to_cpu(hdr->inst_const_bytes);
797
798 /* Copy firmware and bios info into FB memory. */
799 fw_inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
800 PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
801
802 fw_bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
803
804 memcpy(fb_info->fb[DMUB_WINDOW_0_INST_CONST].cpu_addr, fw_inst_const,
805 fw_inst_const_size);
806 memcpy(fb_info->fb[DMUB_WINDOW_2_BSS_DATA].cpu_addr, fw_bss_data,
807 fw_bss_data_size);
808 memcpy(fb_info->fb[DMUB_WINDOW_3_VBIOS].cpu_addr, adev->bios,
809 adev->bios_size);
810
811 /* Reset regions that need to be reset. */
812 memset(fb_info->fb[DMUB_WINDOW_4_MAILBOX].cpu_addr, 0,
813 fb_info->fb[DMUB_WINDOW_4_MAILBOX].size);
814
815 memset(fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr, 0,
816 fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size);
817
818 memset(fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr, 0,
819 fb_info->fb[DMUB_WINDOW_6_FW_STATE].size);
820
821 /* Initialize hardware. */
822 memset(&hw_params, 0, sizeof(hw_params));
823 hw_params.fb_base = adev->gmc.fb_start;
824 hw_params.fb_offset = adev->gmc.aper_base;
825
826 if (dmcu)
827 hw_params.psp_version = dmcu->psp_version;
828
829 for (i = 0; i < fb_info->num_fb; ++i)
830 hw_params.fb[i] = &fb_info->fb[i];
831
832 status = dmub_srv_hw_init(dmub_srv, &hw_params);
833 if (status != DMUB_STATUS_OK) {
834 DRM_ERROR("Error initializing DMUB HW: %d\n", status);
835 return -EINVAL;
836 }
837
838 /* Wait for firmware load to finish. */
839 status = dmub_srv_wait_for_auto_load(dmub_srv, 100000);
840 if (status != DMUB_STATUS_OK)
841 DRM_WARN("Wait for DMUB auto-load failed: %d\n", status);
842
843 /* Init DMCU and ABM if available. */
844 if (dmcu && abm) {
845 dmcu->funcs->dmcu_init(dmcu);
846 abm->dmcu_is_running = dmcu->funcs->is_dmcu_initialized(dmcu);
847 }
848
849 adev->dm.dc->ctx->dmub_srv = dc_dmub_srv_create(adev->dm.dc, dmub_srv);
850 if (!adev->dm.dc->ctx->dmub_srv) {
851 DRM_ERROR("Couldn't allocate DC DMUB server!\n");
852 return -ENOMEM;
853 }
854
855 DRM_INFO("DMUB hardware initialized: version=0x%08X\n",
856 adev->dm.dmcub_fw_version);
857
858 return 0;
859 }
860
861 static int amdgpu_dm_init(struct amdgpu_device *adev)
862 {
863 struct dc_init_data init_data;
864 #ifdef CONFIG_DRM_AMD_DC_HDCP
865 struct dc_callback_init init_params;
866 #endif
867 int r;
868
869 adev->dm.ddev = adev->ddev;
870 adev->dm.adev = adev;
871
872 /* Zero all the fields */
873 memset(&init_data, 0, sizeof(init_data));
874 #ifdef CONFIG_DRM_AMD_DC_HDCP
875 memset(&init_params, 0, sizeof(init_params));
876 #endif
877
878 mutex_init(&adev->dm.dc_lock);
879 mutex_init(&adev->dm.audio_lock);
880
881 if(amdgpu_dm_irq_init(adev)) {
882 DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
883 goto error;
884 }
885
886 init_data.asic_id.chip_family = adev->family;
887
888 init_data.asic_id.pci_revision_id = adev->rev_id;
889 init_data.asic_id.hw_internal_rev = adev->external_rev_id;
890
891 init_data.asic_id.vram_width = adev->gmc.vram_width;
892 /* TODO: initialize init_data.asic_id.vram_type here!!!! */
893 init_data.asic_id.atombios_base_address =
894 adev->mode_info.atom_context->bios;
895
896 init_data.driver = adev;
897
898 adev->dm.cgs_device = amdgpu_cgs_create_device(adev);
899
900 if (!adev->dm.cgs_device) {
901 DRM_ERROR("amdgpu: failed to create cgs device.\n");
902 goto error;
903 }
904
905 init_data.cgs_device = adev->dm.cgs_device;
906
907 init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
908
909 switch (adev->asic_type) {
910 case CHIP_CARRIZO:
911 case CHIP_STONEY:
912 case CHIP_RAVEN:
913 case CHIP_RENOIR:
914 init_data.flags.gpu_vm_support = true;
915 break;
916 default:
917 break;
918 }
919
920 if (amdgpu_dc_feature_mask & DC_FBC_MASK)
921 init_data.flags.fbc_support = true;
922
923 if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK)
924 init_data.flags.multi_mon_pp_mclk_switch = true;
925
926 if (amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK)
927 init_data.flags.disable_fractional_pwm = true;
928
929 init_data.flags.power_down_display_on_boot = true;
930
931 init_data.soc_bounding_box = adev->dm.soc_bounding_box;
932
933 /* Display Core create. */
934 adev->dm.dc = dc_create(&init_data);
935
936 if (adev->dm.dc) {
937 DRM_INFO("Display Core initialized with v%s!\n", DC_VER);
938 } else {
939 DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER);
940 goto error;
941 }
942
943 dc_hardware_init(adev->dm.dc);
944
945 r = dm_dmub_hw_init(adev);
946 if (r) {
947 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
948 goto error;
949 }
950
951 adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
952 if (!adev->dm.freesync_module) {
953 DRM_ERROR(
954 "amdgpu: failed to initialize freesync_module.\n");
955 } else
956 DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n",
957 adev->dm.freesync_module);
958
959 amdgpu_dm_init_color_mod();
960
961 #ifdef CONFIG_DRM_AMD_DC_HDCP
962 if (adev->asic_type >= CHIP_RAVEN) {
963 adev->dm.hdcp_workqueue = hdcp_create_workqueue(&adev->psp, &init_params.cp_psp, adev->dm.dc);
964
965 if (!adev->dm.hdcp_workqueue)
966 DRM_ERROR("amdgpu: failed to initialize hdcp_workqueue.\n");
967 else
968 DRM_DEBUG_DRIVER("amdgpu: hdcp_workqueue init done %p.\n", adev->dm.hdcp_workqueue);
969
970 dc_init_callbacks(adev->dm.dc, &init_params);
971 }
972 #endif
973 if (amdgpu_dm_initialize_drm_device(adev)) {
974 DRM_ERROR(
975 "amdgpu: failed to initialize sw for display support.\n");
976 goto error;
977 }
978
979 /* Update the actual used number of crtc */
980 adev->mode_info.num_crtc = adev->dm.display_indexes_num;
981
982 /* TODO: Add_display_info? */
983
984 /* TODO use dynamic cursor width */
985 adev->ddev->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
986 adev->ddev->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
987
988 if (drm_vblank_init(adev->ddev, adev->dm.display_indexes_num)) {
989 DRM_ERROR(
990 "amdgpu: failed to initialize sw for display support.\n");
991 goto error;
992 }
993
994 #if defined(CONFIG_DEBUG_FS)
995 if (dtn_debugfs_init(adev))
996 DRM_ERROR("amdgpu: failed initialize dtn debugfs support.\n");
997 #endif
998
999 DRM_DEBUG_DRIVER("KMS initialized.\n");
1000
1001 return 0;
1002 error:
1003 amdgpu_dm_fini(adev);
1004
1005 return -EINVAL;
1006 }
1007
1008 static void amdgpu_dm_fini(struct amdgpu_device *adev)
1009 {
1010 amdgpu_dm_audio_fini(adev);
1011
1012 amdgpu_dm_destroy_drm_device(&adev->dm);
1013
1014 #ifdef CONFIG_DRM_AMD_DC_HDCP
1015 if (adev->dm.hdcp_workqueue) {
1016 hdcp_destroy(adev->dm.hdcp_workqueue);
1017 adev->dm.hdcp_workqueue = NULL;
1018 }
1019
1020 if (adev->dm.dc)
1021 dc_deinit_callbacks(adev->dm.dc);
1022 #endif
1023 if (adev->dm.dc->ctx->dmub_srv) {
1024 dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv);
1025 adev->dm.dc->ctx->dmub_srv = NULL;
1026 }
1027
1028 if (adev->dm.dmub_bo)
1029 amdgpu_bo_free_kernel(&adev->dm.dmub_bo,
1030 &adev->dm.dmub_bo_gpu_addr,
1031 &adev->dm.dmub_bo_cpu_addr);
1032
1033 /* DC Destroy TODO: Replace destroy DAL */
1034 if (adev->dm.dc)
1035 dc_destroy(&adev->dm.dc);
1036 /*
1037 * TODO: pageflip, vlank interrupt
1038 *
1039 * amdgpu_dm_irq_fini(adev);
1040 */
1041
1042 if (adev->dm.cgs_device) {
1043 amdgpu_cgs_destroy_device(adev->dm.cgs_device);
1044 adev->dm.cgs_device = NULL;
1045 }
1046 if (adev->dm.freesync_module) {
1047 mod_freesync_destroy(adev->dm.freesync_module);
1048 adev->dm.freesync_module = NULL;
1049 }
1050
1051 mutex_destroy(&adev->dm.audio_lock);
1052 mutex_destroy(&adev->dm.dc_lock);
1053
1054 return;
1055 }
1056
1057 static int load_dmcu_fw(struct amdgpu_device *adev)
1058 {
1059 const char *fw_name_dmcu = NULL;
1060 int r;
1061 const struct dmcu_firmware_header_v1_0 *hdr;
1062
1063 switch(adev->asic_type) {
1064 case CHIP_BONAIRE:
1065 case CHIP_HAWAII:
1066 case CHIP_KAVERI:
1067 case CHIP_KABINI:
1068 case CHIP_MULLINS:
1069 case CHIP_TONGA:
1070 case CHIP_FIJI:
1071 case CHIP_CARRIZO:
1072 case CHIP_STONEY:
1073 case CHIP_POLARIS11:
1074 case CHIP_POLARIS10:
1075 case CHIP_POLARIS12:
1076 case CHIP_VEGAM:
1077 case CHIP_VEGA10:
1078 case CHIP_VEGA12:
1079 case CHIP_VEGA20:
1080 case CHIP_NAVI10:
1081 case CHIP_NAVI14:
1082 case CHIP_NAVI12:
1083 case CHIP_RENOIR:
1084 return 0;
1085 case CHIP_RAVEN:
1086 if (ASICREV_IS_PICASSO(adev->external_rev_id))
1087 fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
1088 else if (ASICREV_IS_RAVEN2(adev->external_rev_id))
1089 fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
1090 else
1091 return 0;
1092 break;
1093 default:
1094 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
1095 return -EINVAL;
1096 }
1097
1098 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
1099 DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n");
1100 return 0;
1101 }
1102
1103 r = request_firmware_direct(&adev->dm.fw_dmcu, fw_name_dmcu, adev->dev);
1104 if (r == -ENOENT) {
1105 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */
1106 DRM_DEBUG_KMS("dm: DMCU firmware not found\n");
1107 adev->dm.fw_dmcu = NULL;
1108 return 0;
1109 }
1110 if (r) {
1111 dev_err(adev->dev, "amdgpu_dm: Can't load firmware \"%s\"\n",
1112 fw_name_dmcu);
1113 return r;
1114 }
1115
1116 r = amdgpu_ucode_validate(adev->dm.fw_dmcu);
1117 if (r) {
1118 dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n",
1119 fw_name_dmcu);
1120 release_firmware(adev->dm.fw_dmcu);
1121 adev->dm.fw_dmcu = NULL;
1122 return r;
1123 }
1124
1125 hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data;
1126 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM;
1127 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu;
1128 adev->firmware.fw_size +=
1129 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
1130
1131 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV;
1132 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu;
1133 adev->firmware.fw_size +=
1134 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
1135
1136 adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version);
1137
1138 DRM_DEBUG_KMS("PSP loading DMCU firmware\n");
1139
1140 return 0;
1141 }
1142
1143 static uint32_t amdgpu_dm_dmub_reg_read(void *ctx, uint32_t address)
1144 {
1145 struct amdgpu_device *adev = ctx;
1146
1147 return dm_read_reg(adev->dm.dc->ctx, address);
1148 }
1149
1150 static void amdgpu_dm_dmub_reg_write(void *ctx, uint32_t address,
1151 uint32_t value)
1152 {
1153 struct amdgpu_device *adev = ctx;
1154
1155 return dm_write_reg(adev->dm.dc->ctx, address, value);
1156 }
1157
1158 static int dm_dmub_sw_init(struct amdgpu_device *adev)
1159 {
1160 struct dmub_srv_create_params create_params;
1161 struct dmub_srv_region_params region_params;
1162 struct dmub_srv_region_info region_info;
1163 struct dmub_srv_fb_params fb_params;
1164 struct dmub_srv_fb_info *fb_info;
1165 struct dmub_srv *dmub_srv;
1166 const struct dmcub_firmware_header_v1_0 *hdr;
1167 const char *fw_name_dmub;
1168 enum dmub_asic dmub_asic;
1169 enum dmub_status status;
1170 int r;
1171
1172 switch (adev->asic_type) {
1173 case CHIP_RENOIR:
1174 dmub_asic = DMUB_ASIC_DCN21;
1175 fw_name_dmub = FIRMWARE_RENOIR_DMUB;
1176 break;
1177
1178 default:
1179 /* ASIC doesn't support DMUB. */
1180 return 0;
1181 }
1182
1183 r = request_firmware_direct(&adev->dm.dmub_fw, fw_name_dmub, adev->dev);
1184 if (r) {
1185 DRM_ERROR("DMUB firmware loading failed: %d\n", r);
1186 return 0;
1187 }
1188
1189 r = amdgpu_ucode_validate(adev->dm.dmub_fw);
1190 if (r) {
1191 DRM_ERROR("Couldn't validate DMUB firmware: %d\n", r);
1192 return 0;
1193 }
1194
1195 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
1196 DRM_WARN("Only PSP firmware loading is supported for DMUB\n");
1197 return 0;
1198 }
1199
1200 hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data;
1201 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].ucode_id =
1202 AMDGPU_UCODE_ID_DMCUB;
1203 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].fw = adev->dm.dmub_fw;
1204 adev->firmware.fw_size +=
1205 ALIGN(le32_to_cpu(hdr->inst_const_bytes), PAGE_SIZE);
1206
1207 adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version);
1208
1209 DRM_INFO("Loading DMUB firmware via PSP: version=0x%08X\n",
1210 adev->dm.dmcub_fw_version);
1211
1212 adev->dm.dmub_srv = kzalloc(sizeof(*adev->dm.dmub_srv), GFP_KERNEL);
1213 dmub_srv = adev->dm.dmub_srv;
1214
1215 if (!dmub_srv) {
1216 DRM_ERROR("Failed to allocate DMUB service!\n");
1217 return -ENOMEM;
1218 }
1219
1220 memset(&create_params, 0, sizeof(create_params));
1221 create_params.user_ctx = adev;
1222 create_params.funcs.reg_read = amdgpu_dm_dmub_reg_read;
1223 create_params.funcs.reg_write = amdgpu_dm_dmub_reg_write;
1224 create_params.asic = dmub_asic;
1225
1226 /* Create the DMUB service. */
1227 status = dmub_srv_create(dmub_srv, &create_params);
1228 if (status != DMUB_STATUS_OK) {
1229 DRM_ERROR("Error creating DMUB service: %d\n", status);
1230 return -EINVAL;
1231 }
1232
1233 /* Calculate the size of all the regions for the DMUB service. */
1234 memset(&region_params, 0, sizeof(region_params));
1235
1236 region_params.inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
1237 PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
1238 region_params.bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
1239 region_params.vbios_size = adev->bios_size;
1240 region_params.fw_bss_data =
1241 adev->dm.dmub_fw->data +
1242 le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
1243 le32_to_cpu(hdr->inst_const_bytes);
1244
1245 status = dmub_srv_calc_region_info(dmub_srv, &region_params,
1246 &region_info);
1247
1248 if (status != DMUB_STATUS_OK) {
1249 DRM_ERROR("Error calculating DMUB region info: %d\n", status);
1250 return -EINVAL;
1251 }
1252
1253 /*
1254 * Allocate a framebuffer based on the total size of all the regions.
1255 * TODO: Move this into GART.
1256 */
1257 r = amdgpu_bo_create_kernel(adev, region_info.fb_size, PAGE_SIZE,
1258 AMDGPU_GEM_DOMAIN_VRAM, &adev->dm.dmub_bo,
1259 &adev->dm.dmub_bo_gpu_addr,
1260 &adev->dm.dmub_bo_cpu_addr);
1261 if (r)
1262 return r;
1263
1264 /* Rebase the regions on the framebuffer address. */
1265 memset(&fb_params, 0, sizeof(fb_params));
1266 fb_params.cpu_addr = adev->dm.dmub_bo_cpu_addr;
1267 fb_params.gpu_addr = adev->dm.dmub_bo_gpu_addr;
1268 fb_params.region_info = &region_info;
1269
1270 adev->dm.dmub_fb_info =
1271 kzalloc(sizeof(*adev->dm.dmub_fb_info), GFP_KERNEL);
1272 fb_info = adev->dm.dmub_fb_info;
1273
1274 if (!fb_info) {
1275 DRM_ERROR(
1276 "Failed to allocate framebuffer info for DMUB service!\n");
1277 return -ENOMEM;
1278 }
1279
1280 status = dmub_srv_calc_fb_info(dmub_srv, &fb_params, fb_info);
1281 if (status != DMUB_STATUS_OK) {
1282 DRM_ERROR("Error calculating DMUB FB info: %d\n", status);
1283 return -EINVAL;
1284 }
1285
1286 return 0;
1287 }
1288
1289 static int dm_sw_init(void *handle)
1290 {
1291 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1292 int r;
1293
1294 r = dm_dmub_sw_init(adev);
1295 if (r)
1296 return r;
1297
1298 return load_dmcu_fw(adev);
1299 }
1300
1301 static int dm_sw_fini(void *handle)
1302 {
1303 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1304
1305 kfree(adev->dm.dmub_fb_info);
1306 adev->dm.dmub_fb_info = NULL;
1307
1308 if (adev->dm.dmub_srv) {
1309 dmub_srv_destroy(adev->dm.dmub_srv);
1310 adev->dm.dmub_srv = NULL;
1311 }
1312
1313 if (adev->dm.dmub_fw) {
1314 release_firmware(adev->dm.dmub_fw);
1315 adev->dm.dmub_fw = NULL;
1316 }
1317
1318 if(adev->dm.fw_dmcu) {
1319 release_firmware(adev->dm.fw_dmcu);
1320 adev->dm.fw_dmcu = NULL;
1321 }
1322
1323 return 0;
1324 }
1325
1326 static int detect_mst_link_for_all_connectors(struct drm_device *dev)
1327 {
1328 struct amdgpu_dm_connector *aconnector;
1329 struct drm_connector *connector;
1330 struct drm_connector_list_iter iter;
1331 int ret = 0;
1332
1333 drm_connector_list_iter_begin(dev, &iter);
1334 drm_for_each_connector_iter(connector, &iter) {
1335 aconnector = to_amdgpu_dm_connector(connector);
1336 if (aconnector->dc_link->type == dc_connection_mst_branch &&
1337 aconnector->mst_mgr.aux) {
1338 DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n",
1339 aconnector,
1340 aconnector->base.base.id);
1341
1342 ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
1343 if (ret < 0) {
1344 DRM_ERROR("DM_MST: Failed to start MST\n");
1345 aconnector->dc_link->type =
1346 dc_connection_single;
1347 break;
1348 }
1349 }
1350 }
1351 drm_connector_list_iter_end(&iter);
1352
1353 return ret;
1354 }
1355
1356 static int dm_late_init(void *handle)
1357 {
1358 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1359
1360 struct dmcu_iram_parameters params;
1361 unsigned int linear_lut[16];
1362 int i;
1363 struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;
1364 bool ret = false;
1365
1366 for (i = 0; i < 16; i++)
1367 linear_lut[i] = 0xFFFF * i / 15;
1368
1369 params.set = 0;
1370 params.backlight_ramping_start = 0xCCCC;
1371 params.backlight_ramping_reduction = 0xCCCCCCCC;
1372 params.backlight_lut_array_size = 16;
1373 params.backlight_lut_array = linear_lut;
1374
1375 /* Min backlight level after ABM reduction, Don't allow below 1%
1376 * 0xFFFF x 0.01 = 0x28F
1377 */
1378 params.min_abm_backlight = 0x28F;
1379
1380 /* todo will enable for navi10 */
1381 if (adev->asic_type <= CHIP_RAVEN) {
1382 ret = dmcu_load_iram(dmcu, params);
1383
1384 if (!ret)
1385 return -EINVAL;
1386 }
1387
1388 return detect_mst_link_for_all_connectors(adev->ddev);
1389 }
1390
1391 static void s3_handle_mst(struct drm_device *dev, bool suspend)
1392 {
1393 struct amdgpu_dm_connector *aconnector;
1394 struct drm_connector *connector;
1395 struct drm_connector_list_iter iter;
1396 struct drm_dp_mst_topology_mgr *mgr;
1397 int ret;
1398 bool need_hotplug = false;
1399
1400 drm_connector_list_iter_begin(dev, &iter);
1401 drm_for_each_connector_iter(connector, &iter) {
1402 aconnector = to_amdgpu_dm_connector(connector);
1403 if (aconnector->dc_link->type != dc_connection_mst_branch ||
1404 aconnector->mst_port)
1405 continue;
1406
1407 mgr = &aconnector->mst_mgr;
1408
1409 if (suspend) {
1410 drm_dp_mst_topology_mgr_suspend(mgr);
1411 } else {
1412 ret = drm_dp_mst_topology_mgr_resume(mgr, true);
1413 if (ret < 0) {
1414 drm_dp_mst_topology_mgr_set_mst(mgr, false);
1415 need_hotplug = true;
1416 }
1417 }
1418 }
1419 drm_connector_list_iter_end(&iter);
1420
1421 if (need_hotplug)
1422 drm_kms_helper_hotplug_event(dev);
1423 }
1424
1425 /**
1426 * dm_hw_init() - Initialize DC device
1427 * @handle: The base driver device containing the amdgpu_dm device.
1428 *
1429 * Initialize the &struct amdgpu_display_manager device. This involves calling
1430 * the initializers of each DM component, then populating the struct with them.
1431 *
1432 * Although the function implies hardware initialization, both hardware and
1433 * software are initialized here. Splitting them out to their relevant init
1434 * hooks is a future TODO item.
1435 *
1436 * Some notable things that are initialized here:
1437 *
1438 * - Display Core, both software and hardware
1439 * - DC modules that we need (freesync and color management)
1440 * - DRM software states
1441 * - Interrupt sources and handlers
1442 * - Vblank support
1443 * - Debug FS entries, if enabled
1444 */
1445 static int dm_hw_init(void *handle)
1446 {
1447 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1448 /* Create DAL display manager */
1449 amdgpu_dm_init(adev);
1450 amdgpu_dm_hpd_init(adev);
1451
1452 return 0;
1453 }
1454
1455 /**
1456 * dm_hw_fini() - Teardown DC device
1457 * @handle: The base driver device containing the amdgpu_dm device.
1458 *
1459 * Teardown components within &struct amdgpu_display_manager that require
1460 * cleanup. This involves cleaning up the DRM device, DC, and any modules that
1461 * were loaded. Also flush IRQ workqueues and disable them.
1462 */
1463 static int dm_hw_fini(void *handle)
1464 {
1465 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1466
1467 amdgpu_dm_hpd_fini(adev);
1468
1469 amdgpu_dm_irq_fini(adev);
1470 amdgpu_dm_fini(adev);
1471 return 0;
1472 }
1473
1474 static int dm_suspend(void *handle)
1475 {
1476 struct amdgpu_device *adev = handle;
1477 struct amdgpu_display_manager *dm = &adev->dm;
1478 int ret = 0;
1479
1480 WARN_ON(adev->dm.cached_state);
1481 adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev);
1482
1483 s3_handle_mst(adev->ddev, true);
1484
1485 amdgpu_dm_irq_suspend(adev);
1486
1487
1488 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
1489
1490 return ret;
1491 }
1492
1493 static struct amdgpu_dm_connector *
1494 amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
1495 struct drm_crtc *crtc)
1496 {
1497 uint32_t i;
1498 struct drm_connector_state *new_con_state;
1499 struct drm_connector *connector;
1500 struct drm_crtc *crtc_from_state;
1501
1502 for_each_new_connector_in_state(state, connector, new_con_state, i) {
1503 crtc_from_state = new_con_state->crtc;
1504
1505 if (crtc_from_state == crtc)
1506 return to_amdgpu_dm_connector(connector);
1507 }
1508
1509 return NULL;
1510 }
1511
1512 static void emulated_link_detect(struct dc_link *link)
1513 {
1514 struct dc_sink_init_data sink_init_data = { 0 };
1515 struct display_sink_capability sink_caps = { 0 };
1516 enum dc_edid_status edid_status;
1517 struct dc_context *dc_ctx = link->ctx;
1518 struct dc_sink *sink = NULL;
1519 struct dc_sink *prev_sink = NULL;
1520
1521 link->type = dc_connection_none;
1522 prev_sink = link->local_sink;
1523
1524 if (prev_sink != NULL)
1525 dc_sink_retain(prev_sink);
1526
1527 switch (link->connector_signal) {
1528 case SIGNAL_TYPE_HDMI_TYPE_A: {
1529 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
1530 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A;
1531 break;
1532 }
1533
1534 case SIGNAL_TYPE_DVI_SINGLE_LINK: {
1535 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
1536 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
1537 break;
1538 }
1539
1540 case SIGNAL_TYPE_DVI_DUAL_LINK: {
1541 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
1542 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK;
1543 break;
1544 }
1545
1546 case SIGNAL_TYPE_LVDS: {
1547 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
1548 sink_caps.signal = SIGNAL_TYPE_LVDS;
1549 break;
1550 }
1551
1552 case SIGNAL_TYPE_EDP: {
1553 sink_caps.transaction_type =
1554 DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
1555 sink_caps.signal = SIGNAL_TYPE_EDP;
1556 break;
1557 }
1558
1559 case SIGNAL_TYPE_DISPLAY_PORT: {
1560 sink_caps.transaction_type =
1561 DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
1562 sink_caps.signal = SIGNAL_TYPE_VIRTUAL;
1563 break;
1564 }
1565
1566 default:
1567 DC_ERROR("Invalid connector type! signal:%d\n",
1568 link->connector_signal);
1569 return;
1570 }
1571
1572 sink_init_data.link = link;
1573 sink_init_data.sink_signal = sink_caps.signal;
1574
1575 sink = dc_sink_create(&sink_init_data);
1576 if (!sink) {
1577 DC_ERROR("Failed to create sink!\n");
1578 return;
1579 }
1580
1581 /* dc_sink_create returns a new reference */
1582 link->local_sink = sink;
1583
1584 edid_status = dm_helpers_read_local_edid(
1585 link->ctx,
1586 link,
1587 sink);
1588
1589 if (edid_status != EDID_OK)
1590 DC_ERROR("Failed to read EDID");
1591
1592 }
1593
1594 static int dm_resume(void *handle)
1595 {
1596 struct amdgpu_device *adev = handle;
1597 struct drm_device *ddev = adev->ddev;
1598 struct amdgpu_display_manager *dm = &adev->dm;
1599 struct amdgpu_dm_connector *aconnector;
1600 struct drm_connector *connector;
1601 struct drm_connector_list_iter iter;
1602 struct drm_crtc *crtc;
1603 struct drm_crtc_state *new_crtc_state;
1604 struct dm_crtc_state *dm_new_crtc_state;
1605 struct drm_plane *plane;
1606 struct drm_plane_state *new_plane_state;
1607 struct dm_plane_state *dm_new_plane_state;
1608 struct dm_atomic_state *dm_state = to_dm_atomic_state(dm->atomic_obj.state);
1609 enum dc_connection_type new_connection_type = dc_connection_none;
1610 int i, r;
1611
1612 /* Recreate dc_state - DC invalidates it when setting power state to S3. */
1613 dc_release_state(dm_state->context);
1614 dm_state->context = dc_create_state(dm->dc);
1615 /* TODO: Remove dc_state->dccg, use dc->dccg directly. */
1616 dc_resource_state_construct(dm->dc, dm_state->context);
1617
1618 /* Before powering on DC we need to re-initialize DMUB. */
1619 r = dm_dmub_hw_init(adev);
1620 if (r)
1621 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
1622
1623 /* power on hardware */
1624 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
1625
1626 /* program HPD filter */
1627 dc_resume(dm->dc);
1628
1629 /*
1630 * early enable HPD Rx IRQ, should be done before set mode as short
1631 * pulse interrupts are used for MST
1632 */
1633 amdgpu_dm_irq_resume_early(adev);
1634
1635 /* On resume we need to rewrite the MSTM control bits to enable MST*/
1636 s3_handle_mst(ddev, false);
1637
1638 /* Do detection*/
1639 drm_connector_list_iter_begin(ddev, &iter);
1640 drm_for_each_connector_iter(connector, &iter) {
1641 aconnector = to_amdgpu_dm_connector(connector);
1642
1643 /*
1644 * this is the case when traversing through already created
1645 * MST connectors, should be skipped
1646 */
1647 if (aconnector->mst_port)
1648 continue;
1649
1650 mutex_lock(&aconnector->hpd_lock);
1651 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
1652 DRM_ERROR("KMS: Failed to detect connector\n");
1653
1654 if (aconnector->base.force && new_connection_type == dc_connection_none)
1655 emulated_link_detect(aconnector->dc_link);
1656 else
1657 dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
1658
1659 if (aconnector->fake_enable && aconnector->dc_link->local_sink)
1660 aconnector->fake_enable = false;
1661
1662 if (aconnector->dc_sink)
1663 dc_sink_release(aconnector->dc_sink);
1664 aconnector->dc_sink = NULL;
1665 amdgpu_dm_update_connector_after_detect(aconnector);
1666 mutex_unlock(&aconnector->hpd_lock);
1667 }
1668 drm_connector_list_iter_end(&iter);
1669
1670 /* Force mode set in atomic commit */
1671 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i)
1672 new_crtc_state->active_changed = true;
1673
1674 /*
1675 * atomic_check is expected to create the dc states. We need to release
1676 * them here, since they were duplicated as part of the suspend
1677 * procedure.
1678 */
1679 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) {
1680 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
1681 if (dm_new_crtc_state->stream) {
1682 WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1);
1683 dc_stream_release(dm_new_crtc_state->stream);
1684 dm_new_crtc_state->stream = NULL;
1685 }
1686 }
1687
1688 for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) {
1689 dm_new_plane_state = to_dm_plane_state(new_plane_state);
1690 if (dm_new_plane_state->dc_state) {
1691 WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1);
1692 dc_plane_state_release(dm_new_plane_state->dc_state);
1693 dm_new_plane_state->dc_state = NULL;
1694 }
1695 }
1696
1697 drm_atomic_helper_resume(ddev, dm->cached_state);
1698
1699 dm->cached_state = NULL;
1700
1701 amdgpu_dm_irq_resume_late(adev);
1702
1703 return 0;
1704 }
1705
1706 /**
1707 * DOC: DM Lifecycle
1708 *
1709 * DM (and consequently DC) is registered in the amdgpu base driver as a IP
1710 * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to
1711 * the base driver's device list to be initialized and torn down accordingly.
1712 *
1713 * The functions to do so are provided as hooks in &struct amd_ip_funcs.
1714 */
1715
1716 static const struct amd_ip_funcs amdgpu_dm_funcs = {
1717 .name = "dm",
1718 .early_init = dm_early_init,
1719 .late_init = dm_late_init,
1720 .sw_init = dm_sw_init,
1721 .sw_fini = dm_sw_fini,
1722 .hw_init = dm_hw_init,
1723 .hw_fini = dm_hw_fini,
1724 .suspend = dm_suspend,
1725 .resume = dm_resume,
1726 .is_idle = dm_is_idle,
1727 .wait_for_idle = dm_wait_for_idle,
1728 .check_soft_reset = dm_check_soft_reset,
1729 .soft_reset = dm_soft_reset,
1730 .set_clockgating_state = dm_set_clockgating_state,
1731 .set_powergating_state = dm_set_powergating_state,
1732 };
1733
1734 const struct amdgpu_ip_block_version dm_ip_block =
1735 {
1736 .type = AMD_IP_BLOCK_TYPE_DCE,
1737 .major = 1,
1738 .minor = 0,
1739 .rev = 0,
1740 .funcs = &amdgpu_dm_funcs,
1741 };
1742
1743
1744 /**
1745 * DOC: atomic
1746 *
1747 * *WIP*
1748 */
1749
1750 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = {
1751 .fb_create = amdgpu_display_user_framebuffer_create,
1752 .output_poll_changed = drm_fb_helper_output_poll_changed,
1753 .atomic_check = amdgpu_dm_atomic_check,
1754 .atomic_commit = amdgpu_dm_atomic_commit,
1755 };
1756
1757 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
1758 .atomic_commit_tail = amdgpu_dm_atomic_commit_tail
1759 };
1760
1761 static void
1762 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector)
1763 {
1764 struct drm_connector *connector = &aconnector->base;
1765 struct drm_device *dev = connector->dev;
1766 struct dc_sink *sink;
1767
1768 /* MST handled by drm_mst framework */
1769 if (aconnector->mst_mgr.mst_state == true)
1770 return;
1771
1772
1773 sink = aconnector->dc_link->local_sink;
1774 if (sink)
1775 dc_sink_retain(sink);
1776
1777 /*
1778 * Edid mgmt connector gets first update only in mode_valid hook and then
1779 * the connector sink is set to either fake or physical sink depends on link status.
1780 * Skip if already done during boot.
1781 */
1782 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED
1783 && aconnector->dc_em_sink) {
1784
1785 /*
1786 * For S3 resume with headless use eml_sink to fake stream
1787 * because on resume connector->sink is set to NULL
1788 */
1789 mutex_lock(&dev->mode_config.mutex);
1790
1791 if (sink) {
1792 if (aconnector->dc_sink) {
1793 amdgpu_dm_update_freesync_caps(connector, NULL);
1794 /*
1795 * retain and release below are used to
1796 * bump up refcount for sink because the link doesn't point
1797 * to it anymore after disconnect, so on next crtc to connector
1798 * reshuffle by UMD we will get into unwanted dc_sink release
1799 */
1800 dc_sink_release(aconnector->dc_sink);
1801 }
1802 aconnector->dc_sink = sink;
1803 dc_sink_retain(aconnector->dc_sink);
1804 amdgpu_dm_update_freesync_caps(connector,
1805 aconnector->edid);
1806 } else {
1807 amdgpu_dm_update_freesync_caps(connector, NULL);
1808 if (!aconnector->dc_sink) {
1809 aconnector->dc_sink = aconnector->dc_em_sink;
1810 dc_sink_retain(aconnector->dc_sink);
1811 }
1812 }
1813
1814 mutex_unlock(&dev->mode_config.mutex);
1815
1816 if (sink)
1817 dc_sink_release(sink);
1818 return;
1819 }
1820
1821 /*
1822 * TODO: temporary guard to look for proper fix
1823 * if this sink is MST sink, we should not do anything
1824 */
1825 if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
1826 dc_sink_release(sink);
1827 return;
1828 }
1829
1830 if (aconnector->dc_sink == sink) {
1831 /*
1832 * We got a DP short pulse (Link Loss, DP CTS, etc...).
1833 * Do nothing!!
1834 */
1835 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n",
1836 aconnector->connector_id);
1837 if (sink)
1838 dc_sink_release(sink);
1839 return;
1840 }
1841
1842 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n",
1843 aconnector->connector_id, aconnector->dc_sink, sink);
1844
1845 mutex_lock(&dev->mode_config.mutex);
1846
1847 /*
1848 * 1. Update status of the drm connector
1849 * 2. Send an event and let userspace tell us what to do
1850 */
1851 if (sink) {
1852 /*
1853 * TODO: check if we still need the S3 mode update workaround.
1854 * If yes, put it here.
1855 */
1856 if (aconnector->dc_sink)
1857 amdgpu_dm_update_freesync_caps(connector, NULL);
1858
1859 aconnector->dc_sink = sink;
1860 dc_sink_retain(aconnector->dc_sink);
1861 if (sink->dc_edid.length == 0) {
1862 aconnector->edid = NULL;
1863 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
1864 } else {
1865 aconnector->edid =
1866 (struct edid *) sink->dc_edid.raw_edid;
1867
1868
1869 drm_connector_update_edid_property(connector,
1870 aconnector->edid);
1871 drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
1872 aconnector->edid);
1873 }
1874 amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
1875
1876 } else {
1877 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
1878 amdgpu_dm_update_freesync_caps(connector, NULL);
1879 drm_connector_update_edid_property(connector, NULL);
1880 aconnector->num_modes = 0;
1881 dc_sink_release(aconnector->dc_sink);
1882 aconnector->dc_sink = NULL;
1883 aconnector->edid = NULL;
1884 #ifdef CONFIG_DRM_AMD_DC_HDCP
1885 /* Set CP to DESIRED if it was ENABLED, so we can re-enable it again on hotplug */
1886 if (connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
1887 connector->state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
1888 #endif
1889 }
1890
1891 mutex_unlock(&dev->mode_config.mutex);
1892
1893 if (sink)
1894 dc_sink_release(sink);
1895 }
1896
1897 static void handle_hpd_irq(void *param)
1898 {
1899 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
1900 struct drm_connector *connector = &aconnector->base;
1901 struct drm_device *dev = connector->dev;
1902 enum dc_connection_type new_connection_type = dc_connection_none;
1903 #ifdef CONFIG_DRM_AMD_DC_HDCP
1904 struct amdgpu_device *adev = dev->dev_private;
1905 #endif
1906
1907 /*
1908 * In case of failure or MST no need to update connector status or notify the OS
1909 * since (for MST case) MST does this in its own context.
1910 */
1911 mutex_lock(&aconnector->hpd_lock);
1912
1913 #ifdef CONFIG_DRM_AMD_DC_HDCP
1914 if (adev->asic_type >= CHIP_RAVEN)
1915 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
1916 #endif
1917 if (aconnector->fake_enable)
1918 aconnector->fake_enable = false;
1919
1920 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
1921 DRM_ERROR("KMS: Failed to detect connector\n");
1922
1923 if (aconnector->base.force && new_connection_type == dc_connection_none) {
1924 emulated_link_detect(aconnector->dc_link);
1925
1926
1927 drm_modeset_lock_all(dev);
1928 dm_restore_drm_connector_state(dev, connector);
1929 drm_modeset_unlock_all(dev);
1930
1931 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
1932 drm_kms_helper_hotplug_event(dev);
1933
1934 } else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
1935 amdgpu_dm_update_connector_after_detect(aconnector);
1936
1937
1938 drm_modeset_lock_all(dev);
1939 dm_restore_drm_connector_state(dev, connector);
1940 drm_modeset_unlock_all(dev);
1941
1942 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
1943 drm_kms_helper_hotplug_event(dev);
1944 }
1945 mutex_unlock(&aconnector->hpd_lock);
1946
1947 }
1948
1949 static void dm_handle_hpd_rx_irq(struct amdgpu_dm_connector *aconnector)
1950 {
1951 uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
1952 uint8_t dret;
1953 bool new_irq_handled = false;
1954 int dpcd_addr;
1955 int dpcd_bytes_to_read;
1956
1957 const int max_process_count = 30;
1958 int process_count = 0;
1959
1960 const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
1961
1962 if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
1963 dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
1964 /* DPCD 0x200 - 0x201 for downstream IRQ */
1965 dpcd_addr = DP_SINK_COUNT;
1966 } else {
1967 dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
1968 /* DPCD 0x2002 - 0x2005 for downstream IRQ */
1969 dpcd_addr = DP_SINK_COUNT_ESI;
1970 }
1971
1972 dret = drm_dp_dpcd_read(
1973 &aconnector->dm_dp_aux.aux,
1974 dpcd_addr,
1975 esi,
1976 dpcd_bytes_to_read);
1977
1978 while (dret == dpcd_bytes_to_read &&
1979 process_count < max_process_count) {
1980 uint8_t retry;
1981 dret = 0;
1982
1983 process_count++;
1984
1985 DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
1986 /* handle HPD short pulse irq */
1987 if (aconnector->mst_mgr.mst_state)
1988 drm_dp_mst_hpd_irq(
1989 &aconnector->mst_mgr,
1990 esi,
1991 &new_irq_handled);
1992
1993 if (new_irq_handled) {
1994 /* ACK at DPCD to notify down stream */
1995 const int ack_dpcd_bytes_to_write =
1996 dpcd_bytes_to_read - 1;
1997
1998 for (retry = 0; retry < 3; retry++) {
1999 uint8_t wret;
2000
2001 wret = drm_dp_dpcd_write(
2002 &aconnector->dm_dp_aux.aux,
2003 dpcd_addr + 1,
2004 &esi[1],
2005 ack_dpcd_bytes_to_write);
2006 if (wret == ack_dpcd_bytes_to_write)
2007 break;
2008 }
2009
2010 /* check if there is new irq to be handled */
2011 dret = drm_dp_dpcd_read(
2012 &aconnector->dm_dp_aux.aux,
2013 dpcd_addr,
2014 esi,
2015 dpcd_bytes_to_read);
2016
2017 new_irq_handled = false;
2018 } else {
2019 break;
2020 }
2021 }
2022
2023 if (process_count == max_process_count)
2024 DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
2025 }
2026
2027 static void handle_hpd_rx_irq(void *param)
2028 {
2029 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
2030 struct drm_connector *connector = &aconnector->base;
2031 struct drm_device *dev = connector->dev;
2032 struct dc_link *dc_link = aconnector->dc_link;
2033 bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
2034 enum dc_connection_type new_connection_type = dc_connection_none;
2035 #ifdef CONFIG_DRM_AMD_DC_HDCP
2036 union hpd_irq_data hpd_irq_data;
2037 struct amdgpu_device *adev = dev->dev_private;
2038
2039 memset(&hpd_irq_data, 0, sizeof(hpd_irq_data));
2040 #endif
2041
2042 /*
2043 * TODO:Temporary add mutex to protect hpd interrupt not have a gpio
2044 * conflict, after implement i2c helper, this mutex should be
2045 * retired.
2046 */
2047 if (dc_link->type != dc_connection_mst_branch)
2048 mutex_lock(&aconnector->hpd_lock);
2049
2050
2051 #ifdef CONFIG_DRM_AMD_DC_HDCP
2052 if (dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL) &&
2053 #else
2054 if (dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL) &&
2055 #endif
2056 !is_mst_root_connector) {
2057 /* Downstream Port status changed. */
2058 if (!dc_link_detect_sink(dc_link, &new_connection_type))
2059 DRM_ERROR("KMS: Failed to detect connector\n");
2060
2061 if (aconnector->base.force && new_connection_type == dc_connection_none) {
2062 emulated_link_detect(dc_link);
2063
2064 if (aconnector->fake_enable)
2065 aconnector->fake_enable = false;
2066
2067 amdgpu_dm_update_connector_after_detect(aconnector);
2068
2069
2070 drm_modeset_lock_all(dev);
2071 dm_restore_drm_connector_state(dev, connector);
2072 drm_modeset_unlock_all(dev);
2073
2074 drm_kms_helper_hotplug_event(dev);
2075 } else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) {
2076
2077 if (aconnector->fake_enable)
2078 aconnector->fake_enable = false;
2079
2080 amdgpu_dm_update_connector_after_detect(aconnector);
2081
2082
2083 drm_modeset_lock_all(dev);
2084 dm_restore_drm_connector_state(dev, connector);
2085 drm_modeset_unlock_all(dev);
2086
2087 drm_kms_helper_hotplug_event(dev);
2088 }
2089 }
2090 #ifdef CONFIG_DRM_AMD_DC_HDCP
2091 if (hpd_irq_data.bytes.device_service_irq.bits.CP_IRQ)
2092 hdcp_handle_cpirq(adev->dm.hdcp_workqueue, aconnector->base.index);
2093 #endif
2094 if ((dc_link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) ||
2095 (dc_link->type == dc_connection_mst_branch))
2096 dm_handle_hpd_rx_irq(aconnector);
2097
2098 if (dc_link->type != dc_connection_mst_branch) {
2099 drm_dp_cec_irq(&aconnector->dm_dp_aux.aux);
2100 mutex_unlock(&aconnector->hpd_lock);
2101 }
2102 }
2103
2104 static void register_hpd_handlers(struct amdgpu_device *adev)
2105 {
2106 struct drm_device *dev = adev->ddev;
2107 struct drm_connector *connector;
2108 struct amdgpu_dm_connector *aconnector;
2109 const struct dc_link *dc_link;
2110 struct dc_interrupt_params int_params = {0};
2111
2112 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
2113 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
2114
2115 list_for_each_entry(connector,
2116 &dev->mode_config.connector_list, head) {
2117
2118 aconnector = to_amdgpu_dm_connector(connector);
2119 dc_link = aconnector->dc_link;
2120
2121 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) {
2122 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
2123 int_params.irq_source = dc_link->irq_source_hpd;
2124
2125 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2126 handle_hpd_irq,
2127 (void *) aconnector);
2128 }
2129
2130 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) {
2131
2132 /* Also register for DP short pulse (hpd_rx). */
2133 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
2134 int_params.irq_source = dc_link->irq_source_hpd_rx;
2135
2136 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2137 handle_hpd_rx_irq,
2138 (void *) aconnector);
2139 }
2140 }
2141 }
2142
2143 /* Register IRQ sources and initialize IRQ callbacks */
2144 static int dce110_register_irq_handlers(struct amdgpu_device *adev)
2145 {
2146 struct dc *dc = adev->dm.dc;
2147 struct common_irq_params *c_irq_params;
2148 struct dc_interrupt_params int_params = {0};
2149 int r;
2150 int i;
2151 unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
2152
2153 if (adev->asic_type >= CHIP_VEGA10)
2154 client_id = SOC15_IH_CLIENTID_DCE;
2155
2156 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
2157 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
2158
2159 /*
2160 * Actions of amdgpu_irq_add_id():
2161 * 1. Register a set() function with base driver.
2162 * Base driver will call set() function to enable/disable an
2163 * interrupt in DC hardware.
2164 * 2. Register amdgpu_dm_irq_handler().
2165 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
2166 * coming from DC hardware.
2167 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
2168 * for acknowledging and handling. */
2169
2170 /* Use VBLANK interrupt */
2171 for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
2172 r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq);
2173 if (r) {
2174 DRM_ERROR("Failed to add crtc irq id!\n");
2175 return r;
2176 }
2177
2178 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
2179 int_params.irq_source =
2180 dc_interrupt_to_irq_source(dc, i, 0);
2181
2182 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
2183
2184 c_irq_params->adev = adev;
2185 c_irq_params->irq_src = int_params.irq_source;
2186
2187 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2188 dm_crtc_high_irq, c_irq_params);
2189 }
2190
2191 /* Use VUPDATE interrupt */
2192 for (i = VISLANDS30_IV_SRCID_D1_V_UPDATE_INT; i <= VISLANDS30_IV_SRCID_D6_V_UPDATE_INT; i += 2) {
2193 r = amdgpu_irq_add_id(adev, client_id, i, &adev->vupdate_irq);
2194 if (r) {
2195 DRM_ERROR("Failed to add vupdate irq id!\n");
2196 return r;
2197 }
2198
2199 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
2200 int_params.irq_source =
2201 dc_interrupt_to_irq_source(dc, i, 0);
2202
2203 c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
2204
2205 c_irq_params->adev = adev;
2206 c_irq_params->irq_src = int_params.irq_source;
2207
2208 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2209 dm_vupdate_high_irq, c_irq_params);
2210 }
2211
2212 /* Use GRPH_PFLIP interrupt */
2213 for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
2214 i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
2215 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
2216 if (r) {
2217 DRM_ERROR("Failed to add page flip irq id!\n");
2218 return r;
2219 }
2220
2221 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
2222 int_params.irq_source =
2223 dc_interrupt_to_irq_source(dc, i, 0);
2224
2225 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
2226
2227 c_irq_params->adev = adev;
2228 c_irq_params->irq_src = int_params.irq_source;
2229
2230 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2231 dm_pflip_high_irq, c_irq_params);
2232
2233 }
2234
2235 /* HPD */
2236 r = amdgpu_irq_add_id(adev, client_id,
2237 VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
2238 if (r) {
2239 DRM_ERROR("Failed to add hpd irq id!\n");
2240 return r;
2241 }
2242
2243 register_hpd_handlers(adev);
2244
2245 return 0;
2246 }
2247
2248 #if defined(CONFIG_DRM_AMD_DC_DCN)
2249 /* Register IRQ sources and initialize IRQ callbacks */
2250 static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
2251 {
2252 struct dc *dc = adev->dm.dc;
2253 struct common_irq_params *c_irq_params;
2254 struct dc_interrupt_params int_params = {0};
2255 int r;
2256 int i;
2257
2258 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
2259 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
2260
2261 /*
2262 * Actions of amdgpu_irq_add_id():
2263 * 1. Register a set() function with base driver.
2264 * Base driver will call set() function to enable/disable an
2265 * interrupt in DC hardware.
2266 * 2. Register amdgpu_dm_irq_handler().
2267 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
2268 * coming from DC hardware.
2269 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
2270 * for acknowledging and handling.
2271 */
2272
2273 /* Use VSTARTUP interrupt */
2274 for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP;
2275 i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1;
2276 i++) {
2277 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq);
2278
2279 if (r) {
2280 DRM_ERROR("Failed to add crtc irq id!\n");
2281 return r;
2282 }
2283
2284 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
2285 int_params.irq_source =
2286 dc_interrupt_to_irq_source(dc, i, 0);
2287
2288 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
2289
2290 c_irq_params->adev = adev;
2291 c_irq_params->irq_src = int_params.irq_source;
2292
2293 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2294 dm_dcn_crtc_high_irq, c_irq_params);
2295 }
2296
2297 /* Use GRPH_PFLIP interrupt */
2298 for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
2299 i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1;
2300 i++) {
2301 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
2302 if (r) {
2303 DRM_ERROR("Failed to add page flip irq id!\n");
2304 return r;
2305 }
2306
2307 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
2308 int_params.irq_source =
2309 dc_interrupt_to_irq_source(dc, i, 0);
2310
2311 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
2312
2313 c_irq_params->adev = adev;
2314 c_irq_params->irq_src = int_params.irq_source;
2315
2316 amdgpu_dm_irq_register_interrupt(adev, &int_params,
2317 dm_pflip_high_irq, c_irq_params);
2318
2319 }
2320
2321 /* HPD */
2322 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT,
2323 &adev->hpd_irq);
2324 if (r) {
2325 DRM_ERROR("Failed to add hpd irq id!\n");
2326 return r;
2327 }
2328
2329 register_hpd_handlers(adev);
2330
2331 return 0;
2332 }
2333 #endif
2334
2335 /*
2336 * Acquires the lock for the atomic state object and returns
2337 * the new atomic state.
2338 *
2339 * This should only be called during atomic check.
2340 */
2341 static int dm_atomic_get_state(struct drm_atomic_state *state,
2342 struct dm_atomic_state **dm_state)
2343 {
2344 struct drm_device *dev = state->dev;
2345 struct amdgpu_device *adev = dev->dev_private;
2346 struct amdgpu_display_manager *dm = &adev->dm;
2347 struct drm_private_state *priv_state;
2348
2349 if (*dm_state)
2350 return 0;
2351
2352 priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj);
2353 if (IS_ERR(priv_state))
2354 return PTR_ERR(priv_state);
2355
2356 *dm_state = to_dm_atomic_state(priv_state);
2357
2358 return 0;
2359 }
2360
2361 struct dm_atomic_state *
2362 dm_atomic_get_new_state(struct drm_atomic_state *state)
2363 {
2364 struct drm_device *dev = state->dev;
2365 struct amdgpu_device *adev = dev->dev_private;
2366 struct amdgpu_display_manager *dm = &adev->dm;
2367 struct drm_private_obj *obj;
2368 struct drm_private_state *new_obj_state;
2369 int i;
2370
2371 for_each_new_private_obj_in_state(state, obj, new_obj_state, i) {
2372 if (obj->funcs == dm->atomic_obj.funcs)
2373 return to_dm_atomic_state(new_obj_state);
2374 }
2375
2376 return NULL;
2377 }
2378
2379 struct dm_atomic_state *
2380 dm_atomic_get_old_state(struct drm_atomic_state *state)
2381 {
2382 struct drm_device *dev = state->dev;
2383 struct amdgpu_device *adev = dev->dev_private;
2384 struct amdgpu_display_manager *dm = &adev->dm;
2385 struct drm_private_obj *obj;
2386 struct drm_private_state *old_obj_state;
2387 int i;
2388
2389 for_each_old_private_obj_in_state(state, obj, old_obj_state, i) {
2390 if (obj->funcs == dm->atomic_obj.funcs)
2391 return to_dm_atomic_state(old_obj_state);
2392 }
2393
2394 return NULL;
2395 }
2396
2397 static struct drm_private_state *
2398 dm_atomic_duplicate_state(struct drm_private_obj *obj)
2399 {
2400 struct dm_atomic_state *old_state, *new_state;
2401
2402 new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);
2403 if (!new_state)
2404 return NULL;
2405
2406 __drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base);
2407
2408 old_state = to_dm_atomic_state(obj->state);
2409
2410 if (old_state && old_state->context)
2411 new_state->context = dc_copy_state(old_state->context);
2412
2413 if (!new_state->context) {
2414 kfree(new_state);
2415 return NULL;
2416 }
2417
2418 return &new_state->base;
2419 }
2420
2421 static void dm_atomic_destroy_state(struct drm_private_obj *obj,
2422 struct drm_private_state *state)
2423 {
2424 struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
2425
2426 if (dm_state && dm_state->context)
2427 dc_release_state(dm_state->context);
2428
2429 kfree(dm_state);
2430 }
2431
2432 static struct drm_private_state_funcs dm_atomic_state_funcs = {
2433 .atomic_duplicate_state = dm_atomic_duplicate_state,
2434 .atomic_destroy_state = dm_atomic_destroy_state,
2435 };
2436
2437 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
2438 {
2439 struct dm_atomic_state *state;
2440 int r;
2441
2442 adev->mode_info.mode_config_initialized = true;
2443
2444 adev->ddev->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs;
2445 adev->ddev->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs;
2446
2447 adev->ddev->mode_config.max_width = 16384;
2448 adev->ddev->mode_config.max_height = 16384;
2449
2450 adev->ddev->mode_config.preferred_depth = 24;
2451 adev->ddev->mode_config.prefer_shadow = 1;
2452 /* indicates support for immediate flip */
2453 adev->ddev->mode_config.async_page_flip = true;
2454
2455 adev->ddev->mode_config.fb_base = adev->gmc.aper_base;
2456
2457 state = kzalloc(sizeof(*state), GFP_KERNEL);
2458 if (!state)
2459 return -ENOMEM;
2460
2461 state->context = dc_create_state(adev->dm.dc);
2462 if (!state->context) {
2463 kfree(state);
2464 return -ENOMEM;
2465 }
2466
2467 dc_resource_state_copy_construct_current(adev->dm.dc, state->context);
2468
2469 drm_atomic_private_obj_init(adev->ddev,
2470 &adev->dm.atomic_obj,
2471 &state->base,
2472 &dm_atomic_state_funcs);
2473
2474 r = amdgpu_display_modeset_create_props(adev);
2475 if (r)
2476 return r;
2477
2478 r = amdgpu_dm_audio_init(adev);
2479 if (r)
2480 return r;
2481
2482 return 0;
2483 }
2484
2485 #define AMDGPU_DM_DEFAULT_MIN_BACKLIGHT 12
2486 #define AMDGPU_DM_DEFAULT_MAX_BACKLIGHT 255
2487
2488 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
2489 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
2490
2491 static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm)
2492 {
2493 #if defined(CONFIG_ACPI)
2494 struct amdgpu_dm_backlight_caps caps;
2495
2496 if (dm->backlight_caps.caps_valid)
2497 return;
2498
2499 amdgpu_acpi_get_backlight_caps(dm->adev, &caps);
2500 if (caps.caps_valid) {
2501 dm->backlight_caps.min_input_signal = caps.min_input_signal;
2502 dm->backlight_caps.max_input_signal = caps.max_input_signal;
2503 dm->backlight_caps.caps_valid = true;
2504 } else {
2505 dm->backlight_caps.min_input_signal =
2506 AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
2507 dm->backlight_caps.max_input_signal =
2508 AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
2509 }
2510 #else
2511 dm->backlight_caps.min_input_signal = AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
2512 dm->backlight_caps.max_input_signal = AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
2513 #endif
2514 }
2515
2516 static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
2517 {
2518 struct amdgpu_display_manager *dm = bl_get_data(bd);
2519 struct amdgpu_dm_backlight_caps caps;
2520 uint32_t brightness = bd->props.brightness;
2521
2522 amdgpu_dm_update_backlight_caps(dm);
2523 caps = dm->backlight_caps;
2524 /*
2525 * The brightness input is in the range 0-255
2526 * It needs to be rescaled to be between the
2527 * requested min and max input signal
2528 *
2529 * It also needs to be scaled up by 0x101 to
2530 * match the DC interface which has a range of
2531 * 0 to 0xffff
2532 */
2533 brightness =
2534 brightness
2535 * 0x101
2536 * (caps.max_input_signal - caps.min_input_signal)
2537 / AMDGPU_MAX_BL_LEVEL
2538 + caps.min_input_signal * 0x101;
2539
2540 if (dc_link_set_backlight_level(dm->backlight_link,
2541 brightness, 0))
2542 return 0;
2543 else
2544 return 1;
2545 }
2546
2547 static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
2548 {
2549 struct amdgpu_display_manager *dm = bl_get_data(bd);
2550 int ret = dc_link_get_backlight_level(dm->backlight_link);
2551
2552 if (ret == DC_ERROR_UNEXPECTED)
2553 return bd->props.brightness;
2554 return ret;
2555 }
2556
2557 static const struct backlight_ops amdgpu_dm_backlight_ops = {
2558 .options = BL_CORE_SUSPENDRESUME,
2559 .get_brightness = amdgpu_dm_backlight_get_brightness,
2560 .update_status = amdgpu_dm_backlight_update_status,
2561 };
2562
2563 static void
2564 amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
2565 {
2566 char bl_name[16];
2567 struct backlight_properties props = { 0 };
2568
2569 amdgpu_dm_update_backlight_caps(dm);
2570
2571 props.max_brightness = AMDGPU_MAX_BL_LEVEL;
2572 props.brightness = AMDGPU_MAX_BL_LEVEL;
2573 props.type = BACKLIGHT_RAW;
2574
2575 snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d",
2576 dm->adev->ddev->primary->index);
2577
2578 dm->backlight_dev = backlight_device_register(bl_name,
2579 dm->adev->ddev->dev,
2580 dm,
2581 &amdgpu_dm_backlight_ops,
2582 &props);
2583
2584 if (IS_ERR(dm->backlight_dev))
2585 DRM_ERROR("DM: Backlight registration failed!\n");
2586 else
2587 DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
2588 }
2589
2590 #endif
2591
2592 static int initialize_plane(struct amdgpu_display_manager *dm,
2593 struct amdgpu_mode_info *mode_info, int plane_id,
2594 enum drm_plane_type plane_type,
2595 const struct dc_plane_cap *plane_cap)
2596 {
2597 struct drm_plane *plane;
2598 unsigned long possible_crtcs;
2599 int ret = 0;
2600
2601 plane = kzalloc(sizeof(struct drm_plane), GFP_KERNEL);
2602 if (!plane) {
2603 DRM_ERROR("KMS: Failed to allocate plane\n");
2604 return -ENOMEM;
2605 }
2606 plane->type = plane_type;
2607
2608 /*
2609 * HACK: IGT tests expect that the primary plane for a CRTC
2610 * can only have one possible CRTC. Only expose support for
2611 * any CRTC if they're not going to be used as a primary plane
2612 * for a CRTC - like overlay or underlay planes.
2613 */
2614 possible_crtcs = 1 << plane_id;
2615 if (plane_id >= dm->dc->caps.max_streams)
2616 possible_crtcs = 0xff;
2617
2618 ret = amdgpu_dm_plane_init(dm, plane, possible_crtcs, plane_cap);
2619
2620 if (ret) {
2621 DRM_ERROR("KMS: Failed to initialize plane\n");
2622 kfree(plane);
2623 return ret;
2624 }
2625
2626 if (mode_info)
2627 mode_info->planes[plane_id] = plane;
2628
2629 return ret;
2630 }
2631
2632
2633 static void register_backlight_device(struct amdgpu_display_manager *dm,
2634 struct dc_link *link)
2635 {
2636 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
2637 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
2638
2639 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
2640 link->type != dc_connection_none) {
2641 /*
2642 * Event if registration failed, we should continue with
2643 * DM initialization because not having a backlight control
2644 * is better then a black screen.
2645 */
2646 amdgpu_dm_register_backlight_device(dm);
2647
2648 if (dm->backlight_dev)
2649 dm->backlight_link = link;
2650 }
2651 #endif
2652 }
2653
2654
2655 /*
2656 * In this architecture, the association
2657 * connector -> encoder -> crtc
2658 * id not really requried. The crtc and connector will hold the
2659 * display_index as an abstraction to use with DAL component
2660 *
2661 * Returns 0 on success
2662 */
2663 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
2664 {
2665 struct amdgpu_display_manager *dm = &adev->dm;
2666 int32_t i;
2667 struct amdgpu_dm_connector *aconnector = NULL;
2668 struct amdgpu_encoder *aencoder = NULL;
2669 struct amdgpu_mode_info *mode_info = &adev->mode_info;
2670 uint32_t link_cnt;
2671 int32_t primary_planes;
2672 enum dc_connection_type new_connection_type = dc_connection_none;
2673 const struct dc_plane_cap *plane;
2674
2675 link_cnt = dm->dc->caps.max_links;
2676 if (amdgpu_dm_mode_config_init(dm->adev)) {
2677 DRM_ERROR("DM: Failed to initialize mode config\n");
2678 return -EINVAL;
2679 }
2680
2681 /* There is one primary plane per CRTC */
2682 primary_planes = dm->dc->caps.max_streams;
2683 ASSERT(primary_planes <= AMDGPU_MAX_PLANES);
2684
2685 /*
2686 * Initialize primary planes, implicit planes for legacy IOCTLS.
2687 * Order is reversed to match iteration order in atomic check.
2688 */
2689 for (i = (primary_planes - 1); i >= 0; i--) {
2690 plane = &dm->dc->caps.planes[i];
2691
2692 if (initialize_plane(dm, mode_info, i,
2693 DRM_PLANE_TYPE_PRIMARY, plane)) {
2694 DRM_ERROR("KMS: Failed to initialize primary plane\n");
2695 goto fail;
2696 }
2697 }
2698
2699 /*
2700 * Initialize overlay planes, index starting after primary planes.
2701 * These planes have a higher DRM index than the primary planes since
2702 * they should be considered as having a higher z-order.
2703 * Order is reversed to match iteration order in atomic check.
2704 *
2705 * Only support DCN for now, and only expose one so we don't encourage
2706 * userspace to use up all the pipes.
2707 */
2708 for (i = 0; i < dm->dc->caps.max_planes; ++i) {
2709 struct dc_plane_cap *plane = &dm->dc->caps.planes[i];
2710
2711 if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL)
2712 continue;
2713
2714 if (!plane->blends_with_above || !plane->blends_with_below)
2715 continue;
2716
2717 if (!plane->pixel_format_support.argb8888)
2718 continue;
2719
2720 if (initialize_plane(dm, NULL, primary_planes + i,
2721 DRM_PLANE_TYPE_OVERLAY, plane)) {
2722 DRM_ERROR("KMS: Failed to initialize overlay plane\n");
2723 goto fail;
2724 }
2725
2726 /* Only create one overlay plane. */
2727 break;
2728 }
2729
2730 for (i = 0; i < dm->dc->caps.max_streams; i++)
2731 if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) {
2732 DRM_ERROR("KMS: Failed to initialize crtc\n");
2733 goto fail;
2734 }
2735
2736 dm->display_indexes_num = dm->dc->caps.max_streams;
2737
2738 /* loops over all connectors on the board */
2739 for (i = 0; i < link_cnt; i++) {
2740 struct dc_link *link = NULL;
2741
2742 if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
2743 DRM_ERROR(
2744 "KMS: Cannot support more than %d display indexes\n",
2745 AMDGPU_DM_MAX_DISPLAY_INDEX);
2746 continue;
2747 }
2748
2749 aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
2750 if (!aconnector)
2751 goto fail;
2752
2753 aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL);
2754 if (!aencoder)
2755 goto fail;
2756
2757 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) {
2758 DRM_ERROR("KMS: Failed to initialize encoder\n");
2759 goto fail;
2760 }
2761
2762 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) {
2763 DRM_ERROR("KMS: Failed to initialize connector\n");
2764 goto fail;
2765 }
2766
2767 link = dc_get_link_at_index(dm->dc, i);
2768
2769 if (!dc_link_detect_sink(link, &new_connection_type))
2770 DRM_ERROR("KMS: Failed to detect connector\n");
2771
2772 if (aconnector->base.force && new_connection_type == dc_connection_none) {
2773 emulated_link_detect(link);
2774 amdgpu_dm_update_connector_after_detect(aconnector);
2775
2776 } else if (dc_link_detect(link, DETECT_REASON_BOOT)) {
2777 amdgpu_dm_update_connector_after_detect(aconnector);
2778 register_backlight_device(dm, link);
2779 if (amdgpu_dc_feature_mask & DC_PSR_MASK)
2780 amdgpu_dm_set_psr_caps(link);
2781 }
2782
2783
2784 }
2785
2786 /* Software is initialized. Now we can register interrupt handlers. */
2787 switch (adev->asic_type) {
2788 case CHIP_BONAIRE:
2789 case CHIP_HAWAII:
2790 case CHIP_KAVERI:
2791 case CHIP_KABINI:
2792 case CHIP_MULLINS:
2793 case CHIP_TONGA:
2794 case CHIP_FIJI:
2795 case CHIP_CARRIZO:
2796 case CHIP_STONEY:
2797 case CHIP_POLARIS11:
2798 case CHIP_POLARIS10:
2799 case CHIP_POLARIS12:
2800 case CHIP_VEGAM:
2801 case CHIP_VEGA10:
2802 case CHIP_VEGA12:
2803 case CHIP_VEGA20:
2804 if (dce110_register_irq_handlers(dm->adev)) {
2805 DRM_ERROR("DM: Failed to initialize IRQ\n");
2806 goto fail;
2807 }
2808 break;
2809 #if defined(CONFIG_DRM_AMD_DC_DCN)
2810 case CHIP_RAVEN:
2811 case CHIP_NAVI12:
2812 case CHIP_NAVI10:
2813 case CHIP_NAVI14:
2814 case CHIP_RENOIR:
2815 if (dcn10_register_irq_handlers(dm->adev)) {
2816 DRM_ERROR("DM: Failed to initialize IRQ\n");
2817 goto fail;
2818 }
2819 break;
2820 #endif
2821 default:
2822 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
2823 goto fail;
2824 }
2825
2826 if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY)
2827 dm->dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true;
2828
2829 return 0;
2830 fail:
2831 kfree(aencoder);
2832 kfree(aconnector);
2833
2834 return -EINVAL;
2835 }
2836
2837 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
2838 {
2839 drm_mode_config_cleanup(dm->ddev);
2840 drm_atomic_private_obj_fini(&dm->atomic_obj);
2841 return;
2842 }
2843
2844 /******************************************************************************
2845 * amdgpu_display_funcs functions
2846 *****************************************************************************/
2847
2848 /*
2849 * dm_bandwidth_update - program display watermarks
2850 *
2851 * @adev: amdgpu_device pointer
2852 *
2853 * Calculate and program the display watermarks and line buffer allocation.
2854 */
2855 static void dm_bandwidth_update(struct amdgpu_device *adev)
2856 {
2857 /* TODO: implement later */
2858 }
2859
2860 static const struct amdgpu_display_funcs dm_display_funcs = {
2861 .bandwidth_update = dm_bandwidth_update, /* called unconditionally */
2862 .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */
2863 .backlight_set_level = NULL, /* never called for DC */
2864 .backlight_get_level = NULL, /* never called for DC */
2865 .hpd_sense = NULL,/* called unconditionally */
2866 .hpd_set_polarity = NULL, /* called unconditionally */
2867 .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */
2868 .page_flip_get_scanoutpos =
2869 dm_crtc_get_scanoutpos,/* called unconditionally */
2870 .add_encoder = NULL, /* VBIOS parsing. DAL does it. */
2871 .add_connector = NULL, /* VBIOS parsing. DAL does it. */
2872 };
2873
2874 #if defined(CONFIG_DEBUG_KERNEL_DC)
2875
2876 static ssize_t s3_debug_store(struct device *device,
2877 struct device_attribute *attr,
2878 const char *buf,
2879 size_t count)
2880 {
2881 int ret;
2882 int s3_state;
2883 struct drm_device *drm_dev = dev_get_drvdata(device);
2884 struct amdgpu_device *adev = drm_dev->dev_private;
2885
2886 ret = kstrtoint(buf, 0, &s3_state);
2887
2888 if (ret == 0) {
2889 if (s3_state) {
2890 dm_resume(adev);
2891 drm_kms_helper_hotplug_event(adev->ddev);
2892 } else
2893 dm_suspend(adev);
2894 }
2895
2896 return ret == 0 ? count : 0;
2897 }
2898
2899 DEVICE_ATTR_WO(s3_debug);
2900
2901 #endif
2902
2903 static int dm_early_init(void *handle)
2904 {
2905 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2906
2907 switch (adev->asic_type) {
2908 case CHIP_BONAIRE:
2909 case CHIP_HAWAII:
2910 adev->mode_info.num_crtc = 6;
2911 adev->mode_info.num_hpd = 6;
2912 adev->mode_info.num_dig = 6;
2913 break;
2914 case CHIP_KAVERI:
2915 adev->mode_info.num_crtc = 4;
2916 adev->mode_info.num_hpd = 6;
2917 adev->mode_info.num_dig = 7;
2918 break;
2919 case CHIP_KABINI:
2920 case CHIP_MULLINS:
2921 adev->mode_info.num_crtc = 2;
2922 adev->mode_info.num_hpd = 6;
2923 adev->mode_info.num_dig = 6;
2924 break;
2925 case CHIP_FIJI:
2926 case CHIP_TONGA:
2927 adev->mode_info.num_crtc = 6;
2928 adev->mode_info.num_hpd = 6;
2929 adev->mode_info.num_dig = 7;
2930 break;
2931 case CHIP_CARRIZO:
2932 adev->mode_info.num_crtc = 3;
2933 adev->mode_info.num_hpd = 6;
2934 adev->mode_info.num_dig = 9;
2935 break;
2936 case CHIP_STONEY:
2937 adev->mode_info.num_crtc = 2;
2938 adev->mode_info.num_hpd = 6;
2939 adev->mode_info.num_dig = 9;
2940 break;
2941 case CHIP_POLARIS11:
2942 case CHIP_POLARIS12:
2943 adev->mode_info.num_crtc = 5;
2944 adev->mode_info.num_hpd = 5;
2945 adev->mode_info.num_dig = 5;
2946 break;
2947 case CHIP_POLARIS10:
2948 case CHIP_VEGAM:
2949 adev->mode_info.num_crtc = 6;
2950 adev->mode_info.num_hpd = 6;
2951 adev->mode_info.num_dig = 6;
2952 break;
2953 case CHIP_VEGA10:
2954 case CHIP_VEGA12:
2955 case CHIP_VEGA20:
2956 adev->mode_info.num_crtc = 6;
2957 adev->mode_info.num_hpd = 6;
2958 adev->mode_info.num_dig = 6;
2959 break;
2960 #if defined(CONFIG_DRM_AMD_DC_DCN)
2961 case CHIP_RAVEN:
2962 adev->mode_info.num_crtc = 4;
2963 adev->mode_info.num_hpd = 4;
2964 adev->mode_info.num_dig = 4;
2965 break;
2966 #endif
2967 case CHIP_NAVI10:
2968 case CHIP_NAVI12:
2969 adev->mode_info.num_crtc = 6;
2970 adev->mode_info.num_hpd = 6;
2971 adev->mode_info.num_dig = 6;
2972 break;
2973 case CHIP_NAVI14:
2974 adev->mode_info.num_crtc = 5;
2975 adev->mode_info.num_hpd = 5;
2976 adev->mode_info.num_dig = 5;
2977 break;
2978 case CHIP_RENOIR:
2979 adev->mode_info.num_crtc = 4;
2980 adev->mode_info.num_hpd = 4;
2981 adev->mode_info.num_dig = 4;
2982 break;
2983 default:
2984 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
2985 return -EINVAL;
2986 }
2987
2988 amdgpu_dm_set_irq_funcs(adev);
2989
2990 if (adev->mode_info.funcs == NULL)
2991 adev->mode_info.funcs = &dm_display_funcs;
2992
2993 /*
2994 * Note: Do NOT change adev->audio_endpt_rreg and
2995 * adev->audio_endpt_wreg because they are initialised in
2996 * amdgpu_device_init()
2997 */
2998 #if defined(CONFIG_DEBUG_KERNEL_DC)
2999 device_create_file(
3000 adev->ddev->dev,
3001 &dev_attr_s3_debug);
3002 #endif
3003
3004 return 0;
3005 }
3006
3007 static bool modeset_required(struct drm_crtc_state *crtc_state,
3008 struct dc_stream_state *new_stream,
3009 struct dc_stream_state *old_stream)
3010 {
3011 if (!drm_atomic_crtc_needs_modeset(crtc_state))
3012 return false;
3013
3014 if (!crtc_state->enable)
3015 return false;
3016
3017 return crtc_state->active;
3018 }
3019
3020 static bool modereset_required(struct drm_crtc_state *crtc_state)
3021 {
3022 if (!drm_atomic_crtc_needs_modeset(crtc_state))
3023 return false;
3024
3025 return !crtc_state->enable || !crtc_state->active;
3026 }
3027
3028 static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
3029 {
3030 drm_encoder_cleanup(encoder);
3031 kfree(encoder);
3032 }
3033
3034 static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
3035 .destroy = amdgpu_dm_encoder_destroy,
3036 };
3037
3038
3039 static int fill_dc_scaling_info(const struct drm_plane_state *state,
3040 struct dc_scaling_info *scaling_info)
3041 {
3042 int scale_w, scale_h;
3043
3044 memset(scaling_info, 0, sizeof(*scaling_info));
3045
3046 /* Source is fixed 16.16 but we ignore mantissa for now... */
3047 scaling_info->src_rect.x = state->src_x >> 16;
3048 scaling_info->src_rect.y = state->src_y >> 16;
3049
3050 scaling_info->src_rect.width = state->src_w >> 16;
3051 if (scaling_info->src_rect.width == 0)
3052 return -EINVAL;
3053
3054 scaling_info->src_rect.height = state->src_h >> 16;
3055 if (scaling_info->src_rect.height == 0)
3056 return -EINVAL;
3057
3058 scaling_info->dst_rect.x = state->crtc_x;
3059 scaling_info->dst_rect.y = state->crtc_y;
3060
3061 if (state->crtc_w == 0)
3062 return -EINVAL;
3063
3064 scaling_info->dst_rect.width = state->crtc_w;
3065
3066 if (state->crtc_h == 0)
3067 return -EINVAL;
3068
3069 scaling_info->dst_rect.height = state->crtc_h;
3070
3071 /* DRM doesn't specify clipping on destination output. */
3072 scaling_info->clip_rect = scaling_info->dst_rect;
3073
3074 /* TODO: Validate scaling per-format with DC plane caps */
3075 scale_w = scaling_info->dst_rect.width * 1000 /
3076 scaling_info->src_rect.width;
3077
3078 if (scale_w < 250 || scale_w > 16000)
3079 return -EINVAL;
3080
3081 scale_h = scaling_info->dst_rect.height * 1000 /
3082 scaling_info->src_rect.height;
3083
3084 if (scale_h < 250 || scale_h > 16000)
3085 return -EINVAL;
3086
3087 /*
3088 * The "scaling_quality" can be ignored for now, quality = 0 has DC
3089 * assume reasonable defaults based on the format.
3090 */
3091
3092 return 0;
3093 }
3094
3095 static int get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb,
3096 uint64_t *tiling_flags)
3097 {
3098 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]);
3099 int r = amdgpu_bo_reserve(rbo, false);
3100
3101 if (unlikely(r)) {
3102 /* Don't show error message when returning -ERESTARTSYS */
3103 if (r != -ERESTARTSYS)
3104 DRM_ERROR("Unable to reserve buffer: %d\n", r);
3105 return r;
3106 }
3107
3108 if (tiling_flags)
3109 amdgpu_bo_get_tiling_flags(rbo, tiling_flags);
3110
3111 amdgpu_bo_unreserve(rbo);
3112
3113 return r;
3114 }
3115
3116 static inline uint64_t get_dcc_address(uint64_t address, uint64_t tiling_flags)
3117 {
3118 uint32_t offset = AMDGPU_TILING_GET(tiling_flags, DCC_OFFSET_256B);
3119
3120 return offset ? (address + offset * 256) : 0;
3121 }
3122
3123 static int
3124 fill_plane_dcc_attributes(struct amdgpu_device *adev,
3125 const struct amdgpu_framebuffer *afb,
3126 const enum surface_pixel_format format,
3127 const enum dc_rotation_angle rotation,
3128 const struct plane_size *plane_size,
3129 const union dc_tiling_info *tiling_info,
3130 const uint64_t info,
3131 struct dc_plane_dcc_param *dcc,
3132 struct dc_plane_address *address)
3133 {
3134 struct dc *dc = adev->dm.dc;
3135 struct dc_dcc_surface_param input;
3136 struct dc_surface_dcc_cap output;
3137 uint32_t offset = AMDGPU_TILING_GET(info, DCC_OFFSET_256B);
3138 uint32_t i64b = AMDGPU_TILING_GET(info, DCC_INDEPENDENT_64B) != 0;
3139 uint64_t dcc_address;
3140
3141 memset(&input, 0, sizeof(input));
3142 memset(&output, 0, sizeof(output));
3143
3144 if (!offset)
3145 return 0;
3146
3147 if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
3148 return 0;
3149
3150 if (!dc->cap_funcs.get_dcc_compression_cap)
3151 return -EINVAL;
3152
3153 input.format = format;
3154 input.surface_size.width = plane_size->surface_size.width;
3155 input.surface_size.height = plane_size->surface_size.height;
3156 input.swizzle_mode = tiling_info->gfx9.swizzle;
3157
3158 if (rotation == ROTATION_ANGLE_0 || rotation == ROTATION_ANGLE_180)
3159 input.scan = SCAN_DIRECTION_HORIZONTAL;
3160 else if (rotation == ROTATION_ANGLE_90 || rotation == ROTATION_ANGLE_270)
3161 input.scan = SCAN_DIRECTION_VERTICAL;
3162
3163 if (!dc->cap_funcs.get_dcc_compression_cap(dc, &input, &output))
3164 return -EINVAL;
3165
3166 if (!output.capable)
3167 return -EINVAL;
3168
3169 if (i64b == 0 && output.grph.rgb.independent_64b_blks != 0)
3170 return -EINVAL;
3171
3172 dcc->enable = 1;
3173 dcc->meta_pitch =
3174 AMDGPU_TILING_GET(info, DCC_PITCH_MAX) + 1;
3175 dcc->independent_64b_blks = i64b;
3176
3177 dcc_address = get_dcc_address(afb->address, info);
3178 address->grph.meta_addr.low_part = lower_32_bits(dcc_address);
3179 address->grph.meta_addr.high_part = upper_32_bits(dcc_address);
3180
3181 return 0;
3182 }
3183
3184 static int
3185 fill_plane_buffer_attributes(struct amdgpu_device *adev,
3186 const struct amdgpu_framebuffer *afb,
3187 const enum surface_pixel_format format,
3188 const enum dc_rotation_angle rotation,
3189 const uint64_t tiling_flags,
3190 union dc_tiling_info *tiling_info,
3191 struct plane_size *plane_size,
3192 struct dc_plane_dcc_param *dcc,
3193 struct dc_plane_address *address)
3194 {
3195 const struct drm_framebuffer *fb = &afb->base;
3196 int ret;
3197
3198 memset(tiling_info, 0, sizeof(*tiling_info));
3199 memset(plane_size, 0, sizeof(*plane_size));
3200 memset(dcc, 0, sizeof(*dcc));
3201 memset(address, 0, sizeof(*address));
3202
3203 if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
3204 plane_size->surface_size.x = 0;
3205 plane_size->surface_size.y = 0;
3206 plane_size->surface_size.width = fb->width;
3207 plane_size->surface_size.height = fb->height;
3208 plane_size->surface_pitch =
3209 fb->pitches[0] / fb->format->cpp[0];
3210
3211 address->type = PLN_ADDR_TYPE_GRAPHICS;
3212 address->grph.addr.low_part = lower_32_bits(afb->address);
3213 address->grph.addr.high_part = upper_32_bits(afb->address);
3214 } else if (format < SURFACE_PIXEL_FORMAT_INVALID) {
3215 uint64_t chroma_addr = afb->address + fb->offsets[1];
3216
3217 plane_size->surface_size.x = 0;
3218 plane_size->surface_size.y = 0;
3219 plane_size->surface_size.width = fb->width;
3220 plane_size->surface_size.height = fb->height;
3221 plane_size->surface_pitch =
3222 fb->pitches[0] / fb->format->cpp[0];
3223
3224 plane_size->chroma_size.x = 0;
3225 plane_size->chroma_size.y = 0;
3226 /* TODO: set these based on surface format */
3227 plane_size->chroma_size.width = fb->width / 2;
3228 plane_size->chroma_size.height = fb->height / 2;
3229
3230 plane_size->chroma_pitch =
3231 fb->pitches[1] / fb->format->cpp[1];
3232
3233 address->type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
3234 address->video_progressive.luma_addr.low_part =
3235 lower_32_bits(afb->address);
3236 address->video_progressive.luma_addr.high_part =
3237 upper_32_bits(afb->address);
3238 address->video_progressive.chroma_addr.low_part =
3239 lower_32_bits(chroma_addr);
3240 address->video_progressive.chroma_addr.high_part =
3241 upper_32_bits(chroma_addr);
3242 }
3243
3244 /* Fill GFX8 params */
3245 if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) {
3246 unsigned int bankw, bankh, mtaspect, tile_split, num_banks;
3247
3248 bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH);
3249 bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT);
3250 mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT);
3251 tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT);
3252 num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS);
3253
3254 /* XXX fix me for VI */
3255 tiling_info->gfx8.num_banks = num_banks;
3256 tiling_info->gfx8.array_mode =
3257 DC_ARRAY_2D_TILED_THIN1;
3258 tiling_info->gfx8.tile_split = tile_split;
3259 tiling_info->gfx8.bank_width = bankw;
3260 tiling_info->gfx8.bank_height = bankh;
3261 tiling_info->gfx8.tile_aspect = mtaspect;
3262 tiling_info->gfx8.tile_mode =
3263 DC_ADDR_SURF_MICRO_TILING_DISPLAY;
3264 } else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE)
3265 == DC_ARRAY_1D_TILED_THIN1) {
3266 tiling_info->gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1;
3267 }
3268
3269 tiling_info->gfx8.pipe_config =
3270 AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG);
3271
3272 if (adev->asic_type == CHIP_VEGA10 ||
3273 adev->asic_type == CHIP_VEGA12 ||
3274 adev->asic_type == CHIP_VEGA20 ||
3275 adev->asic_type == CHIP_NAVI10 ||
3276 adev->asic_type == CHIP_NAVI14 ||
3277 adev->asic_type == CHIP_NAVI12 ||
3278 adev->asic_type == CHIP_RENOIR ||
3279 adev->asic_type == CHIP_RAVEN) {
3280 /* Fill GFX9 params */
3281 tiling_info->gfx9.num_pipes =
3282 adev->gfx.config.gb_addr_config_fields.num_pipes;
3283 tiling_info->gfx9.num_banks =
3284 adev->gfx.config.gb_addr_config_fields.num_banks;
3285 tiling_info->gfx9.pipe_interleave =
3286 adev->gfx.config.gb_addr_config_fields.pipe_interleave_size;
3287 tiling_info->gfx9.num_shader_engines =
3288 adev->gfx.config.gb_addr_config_fields.num_se;
3289 tiling_info->gfx9.max_compressed_frags =
3290 adev->gfx.config.gb_addr_config_fields.max_compress_frags;
3291 tiling_info->gfx9.num_rb_per_se =
3292 adev->gfx.config.gb_addr_config_fields.num_rb_per_se;
3293 tiling_info->gfx9.swizzle =
3294 AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE);
3295 tiling_info->gfx9.shaderEnable = 1;
3296
3297 ret = fill_plane_dcc_attributes(adev, afb, format, rotation,
3298 plane_size, tiling_info,
3299 tiling_flags, dcc, address);
3300 if (ret)
3301 return ret;
3302 }
3303
3304 return 0;
3305 }
3306
3307 static void
3308 fill_blending_from_plane_state(const struct drm_plane_state *plane_state,
3309 bool *per_pixel_alpha, bool *global_alpha,
3310 int *global_alpha_value)
3311 {
3312 *per_pixel_alpha = false;
3313 *global_alpha = false;
3314 *global_alpha_value = 0xff;
3315
3316 if (plane_state->plane->type != DRM_PLANE_TYPE_OVERLAY)
3317 return;
3318
3319 if (plane_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI) {
3320 static const uint32_t alpha_formats[] = {
3321 DRM_FORMAT_ARGB8888,
3322 DRM_FORMAT_RGBA8888,
3323 DRM_FORMAT_ABGR8888,
3324 };
3325 uint32_t format = plane_state->fb->format->format;
3326 unsigned int i;
3327
3328 for (i = 0; i < ARRAY_SIZE(alpha_formats); ++i) {
3329 if (format == alpha_formats[i]) {
3330 *per_pixel_alpha = true;
3331 break;
3332 }
3333 }
3334 }
3335
3336 if (plane_state->alpha < 0xffff) {
3337 *global_alpha = true;
3338 *global_alpha_value = plane_state->alpha >> 8;
3339 }
3340 }
3341
3342 static int
3343 fill_plane_color_attributes(const struct drm_plane_state *plane_state,
3344 const enum surface_pixel_format format,
3345 enum dc_color_space *color_space)
3346 {
3347 bool full_range;
3348
3349 *color_space = COLOR_SPACE_SRGB;
3350
3351 /* DRM color properties only affect non-RGB formats. */
3352 if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
3353 return 0;
3354
3355 full_range = (plane_state->color_range == DRM_COLOR_YCBCR_FULL_RANGE);
3356
3357 switch (plane_state->color_encoding) {
3358 case DRM_COLOR_YCBCR_BT601:
3359 if (full_range)
3360 *color_space = COLOR_SPACE_YCBCR601;
3361 else
3362 *color_space = COLOR_SPACE_YCBCR601_LIMITED;
3363 break;
3364
3365 case DRM_COLOR_YCBCR_BT709:
3366 if (full_range)
3367 *color_space = COLOR_SPACE_YCBCR709;
3368 else
3369 *color_space = COLOR_SPACE_YCBCR709_LIMITED;
3370 break;
3371
3372 case DRM_COLOR_YCBCR_BT2020:
3373 if (full_range)
3374 *color_space = COLOR_SPACE_2020_YCBCR;
3375 else
3376 return -EINVAL;
3377 break;
3378
3379 default:
3380 return -EINVAL;
3381 }
3382
3383 return 0;
3384 }
3385
3386 static int
3387 fill_dc_plane_info_and_addr(struct amdgpu_device *adev,
3388 const struct drm_plane_state *plane_state,
3389 const uint64_t tiling_flags,
3390 struct dc_plane_info *plane_info,
3391 struct dc_plane_address *address)
3392 {
3393 const struct drm_framebuffer *fb = plane_state->fb;
3394 const struct amdgpu_framebuffer *afb =
3395 to_amdgpu_framebuffer(plane_state->fb);
3396 struct drm_format_name_buf format_name;
3397 int ret;
3398
3399 memset(plane_info, 0, sizeof(*plane_info));
3400
3401 switch (fb->format->format) {
3402 case DRM_FORMAT_C8:
3403 plane_info->format =
3404 SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS;
3405 break;
3406 case DRM_FORMAT_RGB565:
3407 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565;
3408 break;
3409 case DRM_FORMAT_XRGB8888:
3410 case DRM_FORMAT_ARGB8888:
3411 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
3412 break;
3413 case DRM_FORMAT_XRGB2101010:
3414 case DRM_FORMAT_ARGB2101010:
3415 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010;
3416 break;
3417 case DRM_FORMAT_XBGR2101010:
3418 case DRM_FORMAT_ABGR2101010:
3419 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010;
3420 break;
3421 case DRM_FORMAT_XBGR8888:
3422 case DRM_FORMAT_ABGR8888:
3423 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888;
3424 break;
3425 case DRM_FORMAT_NV21:
3426 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr;
3427 break;
3428 case DRM_FORMAT_NV12:
3429 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb;
3430 break;
3431 default:
3432 DRM_ERROR(
3433 "Unsupported screen format %s\n",
3434 drm_get_format_name(fb->format->format, &format_name));
3435 return -EINVAL;
3436 }
3437
3438 switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) {
3439 case DRM_MODE_ROTATE_0:
3440 plane_info->rotation = ROTATION_ANGLE_0;
3441 break;
3442 case DRM_MODE_ROTATE_90:
3443 plane_info->rotation = ROTATION_ANGLE_90;
3444 break;
3445 case DRM_MODE_ROTATE_180:
3446 plane_info->rotation = ROTATION_ANGLE_180;
3447 break;
3448 case DRM_MODE_ROTATE_270:
3449 plane_info->rotation = ROTATION_ANGLE_270;
3450 break;
3451 default:
3452 plane_info->rotation = ROTATION_ANGLE_0;
3453 break;
3454 }
3455
3456 plane_info->visible = true;
3457 plane_info->stereo_format = PLANE_STEREO_FORMAT_NONE;
3458
3459 plane_info->layer_index = 0;
3460
3461 ret = fill_plane_color_attributes(plane_state, plane_info->format,
3462 &plane_info->color_space);
3463 if (ret)
3464 return ret;
3465
3466 ret = fill_plane_buffer_attributes(adev, afb, plane_info->format,
3467 plane_info->rotation, tiling_flags,
3468 &plane_info->tiling_info,
3469 &plane_info->plane_size,
3470 &plane_info->dcc, address);
3471 if (ret)
3472 return ret;
3473
3474 fill_blending_from_plane_state(
3475 plane_state, &plane_info->per_pixel_alpha,
3476 &plane_info->global_alpha, &plane_info->global_alpha_value);
3477
3478 return 0;
3479 }
3480
3481 static int fill_dc_plane_attributes(struct amdgpu_device *adev,
3482 struct dc_plane_state *dc_plane_state,
3483 struct drm_plane_state *plane_state,
3484 struct drm_crtc_state *crtc_state)
3485 {
3486 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
3487 const struct amdgpu_framebuffer *amdgpu_fb =
3488 to_amdgpu_framebuffer(plane_state->fb);
3489 struct dc_scaling_info scaling_info;
3490 struct dc_plane_info plane_info;
3491 uint64_t tiling_flags;
3492 int ret;
3493
3494 ret = fill_dc_scaling_info(plane_state, &scaling_info);
3495 if (ret)
3496 return ret;
3497
3498 dc_plane_state->src_rect = scaling_info.src_rect;
3499 dc_plane_state->dst_rect = scaling_info.dst_rect;
3500 dc_plane_state->clip_rect = scaling_info.clip_rect;
3501 dc_plane_state->scaling_quality = scaling_info.scaling_quality;
3502
3503 ret = get_fb_info(amdgpu_fb, &tiling_flags);
3504 if (ret)
3505 return ret;
3506
3507 ret = fill_dc_plane_info_and_addr(adev, plane_state, tiling_flags,
3508 &plane_info,
3509 &dc_plane_state->address);
3510 if (ret)
3511 return ret;
3512
3513 dc_plane_state->format = plane_info.format;
3514 dc_plane_state->color_space = plane_info.color_space;
3515 dc_plane_state->format = plane_info.format;
3516 dc_plane_state->plane_size = plane_info.plane_size;
3517 dc_plane_state->rotation = plane_info.rotation;
3518 dc_plane_state->horizontal_mirror = plane_info.horizontal_mirror;
3519 dc_plane_state->stereo_format = plane_info.stereo_format;
3520 dc_plane_state->tiling_info = plane_info.tiling_info;
3521 dc_plane_state->visible = plane_info.visible;
3522 dc_plane_state->per_pixel_alpha = plane_info.per_pixel_alpha;
3523 dc_plane_state->global_alpha = plane_info.global_alpha;
3524 dc_plane_state->global_alpha_value = plane_info.global_alpha_value;
3525 dc_plane_state->dcc = plane_info.dcc;
3526 dc_plane_state->layer_index = plane_info.layer_index; // Always returns 0
3527
3528 /*
3529 * Always set input transfer function, since plane state is refreshed
3530 * every time.
3531 */
3532 ret = amdgpu_dm_update_plane_color_mgmt(dm_crtc_state, dc_plane_state);
3533 if (ret)
3534 return ret;
3535
3536 return 0;
3537 }
3538
3539 static void update_stream_scaling_settings(const struct drm_display_mode *mode,
3540 const struct dm_connector_state *dm_state,
3541 struct dc_stream_state *stream)
3542 {
3543 enum amdgpu_rmx_type rmx_type;
3544
3545 struct rect src = { 0 }; /* viewport in composition space*/
3546 struct rect dst = { 0 }; /* stream addressable area */
3547
3548 /* no mode. nothing to be done */
3549 if (!mode)
3550 return;
3551
3552 /* Full screen scaling by default */
3553 src.width = mode->hdisplay;
3554 src.height = mode->vdisplay;
3555 dst.width = stream->timing.h_addressable;
3556 dst.height = stream->timing.v_addressable;
3557
3558 if (dm_state) {
3559 rmx_type = dm_state->scaling;
3560 if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
3561 if (src.width * dst.height <
3562 src.height * dst.width) {
3563 /* height needs less upscaling/more downscaling */
3564 dst.width = src.width *
3565 dst.height / src.height;
3566 } else {
3567 /* width needs less upscaling/more downscaling */
3568 dst.height = src.height *
3569 dst.width / src.width;
3570 }
3571 } else if (rmx_type == RMX_CENTER) {
3572 dst = src;
3573 }
3574
3575 dst.x = (stream->timing.h_addressable - dst.width) / 2;
3576 dst.y = (stream->timing.v_addressable - dst.height) / 2;
3577
3578 if (dm_state->underscan_enable) {
3579 dst.x += dm_state->underscan_hborder / 2;
3580 dst.y += dm_state->underscan_vborder / 2;
3581 dst.width -= dm_state->underscan_hborder;
3582 dst.height -= dm_state->underscan_vborder;
3583 }
3584 }
3585
3586 stream->src = src;
3587 stream->dst = dst;
3588
3589 DRM_DEBUG_DRIVER("Destination Rectangle x:%d y:%d width:%d height:%d\n",
3590 dst.x, dst.y, dst.width, dst.height);
3591
3592 }
3593
3594 static enum dc_color_depth
3595 convert_color_depth_from_display_info(const struct drm_connector *connector,
3596 const struct drm_connector_state *state,
3597 bool is_y420)
3598 {
3599 uint8_t bpc;
3600
3601 if (is_y420) {
3602 bpc = 8;
3603
3604 /* Cap display bpc based on HDMI 2.0 HF-VSDB */
3605 if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48)
3606 bpc = 16;
3607 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36)
3608 bpc = 12;
3609 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30)
3610 bpc = 10;
3611 } else {
3612 bpc = (uint8_t)connector->display_info.bpc;
3613 /* Assume 8 bpc by default if no bpc is specified. */
3614 bpc = bpc ? bpc : 8;
3615 }
3616
3617 if (!state)
3618 state = connector->state;
3619
3620 if (state) {
3621 /*
3622 * Cap display bpc based on the user requested value.
3623 *
3624 * The value for state->max_bpc may not correctly updated
3625 * depending on when the connector gets added to the state
3626 * or if this was called outside of atomic check, so it
3627 * can't be used directly.
3628 */
3629 bpc = min(bpc, state->max_requested_bpc);
3630
3631 /* Round down to the nearest even number. */
3632 bpc = bpc - (bpc & 1);
3633 }
3634
3635 switch (bpc) {
3636 case 0:
3637 /*
3638 * Temporary Work around, DRM doesn't parse color depth for
3639 * EDID revision before 1.4
3640 * TODO: Fix edid parsing
3641 */
3642 return COLOR_DEPTH_888;
3643 case 6:
3644 return COLOR_DEPTH_666;
3645 case 8:
3646 return COLOR_DEPTH_888;
3647 case 10:
3648 return COLOR_DEPTH_101010;
3649 case 12:
3650 return COLOR_DEPTH_121212;
3651 case 14:
3652 return COLOR_DEPTH_141414;
3653 case 16:
3654 return COLOR_DEPTH_161616;
3655 default:
3656 return COLOR_DEPTH_UNDEFINED;
3657 }
3658 }
3659
3660 static enum dc_aspect_ratio
3661 get_aspect_ratio(const struct drm_display_mode *mode_in)
3662 {
3663 /* 1-1 mapping, since both enums follow the HDMI spec. */
3664 return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio;
3665 }
3666
3667 static enum dc_color_space
3668 get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
3669 {
3670 enum dc_color_space color_space = COLOR_SPACE_SRGB;
3671
3672 switch (dc_crtc_timing->pixel_encoding) {
3673 case PIXEL_ENCODING_YCBCR422:
3674 case PIXEL_ENCODING_YCBCR444:
3675 case PIXEL_ENCODING_YCBCR420:
3676 {
3677 /*
3678 * 27030khz is the separation point between HDTV and SDTV
3679 * according to HDMI spec, we use YCbCr709 and YCbCr601
3680 * respectively
3681 */
3682 if (dc_crtc_timing->pix_clk_100hz > 270300) {
3683 if (dc_crtc_timing->flags.Y_ONLY)
3684 color_space =
3685 COLOR_SPACE_YCBCR709_LIMITED;
3686 else
3687 color_space = COLOR_SPACE_YCBCR709;
3688 } else {
3689 if (dc_crtc_timing->flags.Y_ONLY)
3690 color_space =
3691 COLOR_SPACE_YCBCR601_LIMITED;
3692 else
3693 color_space = COLOR_SPACE_YCBCR601;
3694 }
3695
3696 }
3697 break;
3698 case PIXEL_ENCODING_RGB:
3699 color_space = COLOR_SPACE_SRGB;
3700 break;
3701
3702 default:
3703 WARN_ON(1);
3704 break;
3705 }
3706
3707 return color_space;
3708 }
3709
3710 static bool adjust_colour_depth_from_display_info(
3711 struct dc_crtc_timing *timing_out,
3712 const struct drm_display_info *info)
3713 {
3714 enum dc_color_depth depth = timing_out->display_color_depth;
3715 int normalized_clk;
3716 do {
3717 normalized_clk = timing_out->pix_clk_100hz / 10;
3718 /* YCbCr 4:2:0 requires additional adjustment of 1/2 */
3719 if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420)
3720 normalized_clk /= 2;
3721 /* Adjusting pix clock following on HDMI spec based on colour depth */
3722 switch (depth) {
3723 case COLOR_DEPTH_888:
3724 break;
3725 case COLOR_DEPTH_101010:
3726 normalized_clk = (normalized_clk * 30) / 24;
3727 break;
3728 case COLOR_DEPTH_121212:
3729 normalized_clk = (normalized_clk * 36) / 24;
3730 break;
3731 case COLOR_DEPTH_161616:
3732 normalized_clk = (normalized_clk * 48) / 24;
3733 break;
3734 default:
3735 /* The above depths are the only ones valid for HDMI. */
3736 return false;
3737 }
3738 if (normalized_clk <= info->max_tmds_clock) {
3739 timing_out->display_color_depth = depth;
3740 return true;
3741 }
3742 } while (--depth > COLOR_DEPTH_666);
3743 return false;
3744 }
3745
3746 static void fill_stream_properties_from_drm_display_mode(
3747 struct dc_stream_state *stream,
3748 const struct drm_display_mode *mode_in,
3749 const struct drm_connector *connector,
3750 const struct drm_connector_state *connector_state,
3751 const struct dc_stream_state *old_stream)
3752 {
3753 struct dc_crtc_timing *timing_out = &stream->timing;
3754 const struct drm_display_info *info = &connector->display_info;
3755 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
3756 struct hdmi_vendor_infoframe hv_frame;
3757 struct hdmi_avi_infoframe avi_frame;
3758
3759 memset(&hv_frame, 0, sizeof(hv_frame));
3760 memset(&avi_frame, 0, sizeof(avi_frame));
3761
3762 timing_out->h_border_left = 0;
3763 timing_out->h_border_right = 0;
3764 timing_out->v_border_top = 0;
3765 timing_out->v_border_bottom = 0;
3766 /* TODO: un-hardcode */
3767 if (drm_mode_is_420_only(info, mode_in)
3768 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
3769 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
3770 else if (drm_mode_is_420_also(info, mode_in)
3771 && aconnector->force_yuv420_output)
3772 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
3773 else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444)
3774 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
3775 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
3776 else
3777 timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
3778
3779 timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
3780 timing_out->display_color_depth = convert_color_depth_from_display_info(
3781 connector, connector_state,
3782 (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420));
3783 timing_out->scan_type = SCANNING_TYPE_NODATA;
3784 timing_out->hdmi_vic = 0;
3785
3786 if(old_stream) {
3787 timing_out->vic = old_stream->timing.vic;
3788 timing_out->flags.HSYNC_POSITIVE_POLARITY = old_stream->timing.flags.HSYNC_POSITIVE_POLARITY;
3789 timing_out->flags.VSYNC_POSITIVE_POLARITY = old_stream->timing.flags.VSYNC_POSITIVE_POLARITY;
3790 } else {
3791 timing_out->vic = drm_match_cea_mode(mode_in);
3792 if (mode_in->flags & DRM_MODE_FLAG_PHSYNC)
3793 timing_out->flags.HSYNC_POSITIVE_POLARITY = 1;
3794 if (mode_in->flags & DRM_MODE_FLAG_PVSYNC)
3795 timing_out->flags.VSYNC_POSITIVE_POLARITY = 1;
3796 }
3797
3798 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
3799 drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, (struct drm_connector *)connector, mode_in);
3800 timing_out->vic = avi_frame.video_code;
3801 drm_hdmi_vendor_infoframe_from_display_mode(&hv_frame, (struct drm_connector *)connector, mode_in);
3802 timing_out->hdmi_vic = hv_frame.vic;
3803 }
3804
3805 timing_out->h_addressable = mode_in->crtc_hdisplay;
3806 timing_out->h_total = mode_in->crtc_htotal;
3807 timing_out->h_sync_width =
3808 mode_in->crtc_hsync_end - mode_in->crtc_hsync_start;
3809 timing_out->h_front_porch =
3810 mode_in->crtc_hsync_start - mode_in->crtc_hdisplay;
3811 timing_out->v_total = mode_in->crtc_vtotal;
3812 timing_out->v_addressable = mode_in->crtc_vdisplay;
3813 timing_out->v_front_porch =
3814 mode_in->crtc_vsync_start - mode_in->crtc_vdisplay;
3815 timing_out->v_sync_width =
3816 mode_in->crtc_vsync_end - mode_in->crtc_vsync_start;
3817 timing_out->pix_clk_100hz = mode_in->crtc_clock * 10;
3818 timing_out->aspect_ratio = get_aspect_ratio(mode_in);
3819
3820 stream->output_color_space = get_output_color_space(timing_out);
3821
3822 stream->out_transfer_func->type = TF_TYPE_PREDEFINED;
3823 stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB;
3824 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
3825 if (!adjust_colour_depth_from_display_info(timing_out, info) &&
3826 drm_mode_is_420_also(info, mode_in) &&
3827 timing_out->pixel_encoding != PIXEL_ENCODING_YCBCR420) {
3828 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
3829 adjust_colour_depth_from_display_info(timing_out, info);
3830 }
3831 }
3832 }
3833
3834 static void fill_audio_info(struct audio_info *audio_info,
3835 const struct drm_connector *drm_connector,
3836 const struct dc_sink *dc_sink)
3837 {
3838 int i = 0;
3839 int cea_revision = 0;
3840 const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
3841
3842 audio_info->manufacture_id = edid_caps->manufacturer_id;
3843 audio_info->product_id = edid_caps->product_id;
3844
3845 cea_revision = drm_connector->display_info.cea_rev;
3846
3847 strscpy(audio_info->display_name,
3848 edid_caps->display_name,
3849 AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
3850
3851 if (cea_revision >= 3) {
3852 audio_info->mode_count = edid_caps->audio_mode_count;
3853
3854 for (i = 0; i < audio_info->mode_count; ++i) {
3855 audio_info->modes[i].format_code =
3856 (enum audio_format_code)
3857 (edid_caps->audio_modes[i].format_code);
3858 audio_info->modes[i].channel_count =
3859 edid_caps->audio_modes[i].channel_count;
3860 audio_info->modes[i].sample_rates.all =
3861 edid_caps->audio_modes[i].sample_rate;
3862 audio_info->modes[i].sample_size =
3863 edid_caps->audio_modes[i].sample_size;
3864 }
3865 }
3866
3867 audio_info->flags.all = edid_caps->speaker_flags;
3868
3869 /* TODO: We only check for the progressive mode, check for interlace mode too */
3870 if (drm_connector->latency_present[0]) {
3871 audio_info->video_latency = drm_connector->video_latency[0];
3872 audio_info->audio_latency = drm_connector->audio_latency[0];
3873 }
3874
3875 /* TODO: For DP, video and audio latency should be calculated from DPCD caps */
3876
3877 }
3878
3879 static void
3880 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
3881 struct drm_display_mode *dst_mode)
3882 {
3883 dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay;
3884 dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay;
3885 dst_mode->crtc_clock = src_mode->crtc_clock;
3886 dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start;
3887 dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end;
3888 dst_mode->crtc_hsync_start = src_mode->crtc_hsync_start;
3889 dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end;
3890 dst_mode->crtc_htotal = src_mode->crtc_htotal;
3891 dst_mode->crtc_hskew = src_mode->crtc_hskew;
3892 dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start;
3893 dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end;
3894 dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start;
3895 dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end;
3896 dst_mode->crtc_vtotal = src_mode->crtc_vtotal;
3897 }
3898
3899 static void
3900 decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode,
3901 const struct drm_display_mode *native_mode,
3902 bool scale_enabled)
3903 {
3904 if (scale_enabled) {
3905 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
3906 } else if (native_mode->clock == drm_mode->clock &&
3907 native_mode->htotal == drm_mode->htotal &&
3908 native_mode->vtotal == drm_mode->vtotal) {
3909 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
3910 } else {
3911 /* no scaling nor amdgpu inserted, no need to patch */
3912 }
3913 }
3914
3915 static struct dc_sink *
3916 create_fake_sink(struct amdgpu_dm_connector *aconnector)
3917 {
3918 struct dc_sink_init_data sink_init_data = { 0 };
3919 struct dc_sink *sink = NULL;
3920 sink_init_data.link = aconnector->dc_link;
3921 sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
3922
3923 sink = dc_sink_create(&sink_init_data);
3924 if (!sink) {
3925 DRM_ERROR("Failed to create sink!\n");
3926 return NULL;
3927 }
3928 sink->sink_signal = SIGNAL_TYPE_VIRTUAL;
3929
3930 return sink;
3931 }
3932
3933 static void set_multisync_trigger_params(
3934 struct dc_stream_state *stream)
3935 {
3936 if (stream->triggered_crtc_reset.enabled) {
3937 stream->triggered_crtc_reset.event = CRTC_EVENT_VSYNC_RISING;
3938 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_LINE;
3939 }
3940 }
3941
3942 static void set_master_stream(struct dc_stream_state *stream_set[],
3943 int stream_count)
3944 {
3945 int j, highest_rfr = 0, master_stream = 0;
3946
3947 for (j = 0; j < stream_count; j++) {
3948 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) {
3949 int refresh_rate = 0;
3950
3951 refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/
3952 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total);
3953 if (refresh_rate > highest_rfr) {
3954 highest_rfr = refresh_rate;
3955 master_stream = j;
3956 }
3957 }
3958 }
3959 for (j = 0; j < stream_count; j++) {
3960 if (stream_set[j])
3961 stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream];
3962 }
3963 }
3964
3965 static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context)
3966 {
3967 int i = 0;
3968
3969 if (context->stream_count < 2)
3970 return;
3971 for (i = 0; i < context->stream_count ; i++) {
3972 if (!context->streams[i])
3973 continue;
3974 /*
3975 * TODO: add a function to read AMD VSDB bits and set
3976 * crtc_sync_master.multi_sync_enabled flag
3977 * For now it's set to false
3978 */
3979 set_multisync_trigger_params(context->streams[i]);
3980 }
3981 set_master_stream(context->streams, context->stream_count);
3982 }
3983
3984 static struct dc_stream_state *
3985 create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
3986 const struct drm_display_mode *drm_mode,
3987 const struct dm_connector_state *dm_state,
3988 const struct dc_stream_state *old_stream)
3989 {
3990 struct drm_display_mode *preferred_mode = NULL;
3991 struct drm_connector *drm_connector;
3992 const struct drm_connector_state *con_state =
3993 dm_state ? &dm_state->base : NULL;
3994 struct dc_stream_state *stream = NULL;
3995 struct drm_display_mode mode = *drm_mode;
3996 bool native_mode_found = false;
3997 bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
3998 int mode_refresh;
3999 int preferred_refresh = 0;
4000 #if defined(CONFIG_DRM_AMD_DC_DCN)
4001 struct dsc_dec_dpcd_caps dsc_caps;
4002 #endif
4003 uint32_t link_bandwidth_kbps;
4004
4005 struct dc_sink *sink = NULL;
4006 if (aconnector == NULL) {
4007 DRM_ERROR("aconnector is NULL!\n");
4008 return stream;
4009 }
4010
4011 drm_connector = &aconnector->base;
4012
4013 if (!aconnector->dc_sink) {
4014 sink = create_fake_sink(aconnector);
4015 if (!sink)
4016 return stream;
4017 } else {
4018 sink = aconnector->dc_sink;
4019 dc_sink_retain(sink);
4020 }
4021
4022 stream = dc_create_stream_for_sink(sink);
4023
4024 if (stream == NULL) {
4025 DRM_ERROR("Failed to create stream for sink!\n");
4026 goto finish;
4027 }
4028
4029 stream->dm_stream_context = aconnector;
4030
4031 stream->timing.flags.LTE_340MCSC_SCRAMBLE =
4032 drm_connector->display_info.hdmi.scdc.scrambling.low_rates;
4033
4034 list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
4035 /* Search for preferred mode */
4036 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) {
4037 native_mode_found = true;
4038 break;
4039 }
4040 }
4041 if (!native_mode_found)
4042 preferred_mode = list_first_entry_or_null(
4043 &aconnector->base.modes,
4044 struct drm_display_mode,
4045 head);
4046
4047 mode_refresh = drm_mode_vrefresh(&mode);
4048
4049 if (preferred_mode == NULL) {
4050 /*
4051 * This may not be an error, the use case is when we have no
4052 * usermode calls to reset and set mode upon hotplug. In this
4053 * case, we call set mode ourselves to restore the previous mode
4054 * and the modelist may not be filled in in time.
4055 */
4056 DRM_DEBUG_DRIVER("No preferred mode found\n");
4057 } else {
4058 decide_crtc_timing_for_drm_display_mode(
4059 &mode, preferred_mode,
4060 dm_state ? (dm_state->scaling != RMX_OFF) : false);
4061 preferred_refresh = drm_mode_vrefresh(preferred_mode);
4062 }
4063
4064 if (!dm_state)
4065 drm_mode_set_crtcinfo(&mode, 0);
4066
4067 /*
4068 * If scaling is enabled and refresh rate didn't change
4069 * we copy the vic and polarities of the old timings
4070 */
4071 if (!scale || mode_refresh != preferred_refresh)
4072 fill_stream_properties_from_drm_display_mode(stream,
4073 &mode, &aconnector->base, con_state, NULL);
4074 else
4075 fill_stream_properties_from_drm_display_mode(stream,
4076 &mode, &aconnector->base, con_state, old_stream);
4077
4078 stream->timing.flags.DSC = 0;
4079
4080 if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
4081 #if defined(CONFIG_DRM_AMD_DC_DCN)
4082 dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
4083 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw,
4084 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_ext_caps.raw,
4085 &dsc_caps);
4086 #endif
4087 link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
4088 dc_link_get_link_cap(aconnector->dc_link));
4089
4090 #if defined(CONFIG_DRM_AMD_DC_DCN)
4091 if (dsc_caps.is_dsc_supported)
4092 if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
4093 &dsc_caps,
4094 aconnector->dc_link->ctx->dc->debug.dsc_min_slice_height_override,
4095 link_bandwidth_kbps,
4096 &stream->timing,
4097 &stream->timing.dsc_cfg))
4098 stream->timing.flags.DSC = 1;
4099 #endif
4100 }
4101
4102 update_stream_scaling_settings(&mode, dm_state, stream);
4103
4104 fill_audio_info(
4105 &stream->audio_info,
4106 drm_connector,
4107 sink);
4108
4109 update_stream_signal(stream, sink);
4110
4111 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
4112 mod_build_hf_vsif_infopacket(stream, &stream->vsp_infopacket, false, false);
4113 if (stream->link->psr_feature_enabled) {
4114 struct dc *core_dc = stream->link->ctx->dc;
4115
4116 if (dc_is_dmcu_initialized(core_dc)) {
4117 struct dmcu *dmcu = core_dc->res_pool->dmcu;
4118
4119 stream->psr_version = dmcu->dmcu_version.psr_version;
4120 mod_build_vsc_infopacket(stream,
4121 &stream->vsc_infopacket,
4122 &stream->use_vsc_sdp_for_colorimetry);
4123 }
4124 }
4125 finish:
4126 dc_sink_release(sink);
4127
4128 return stream;
4129 }
4130
4131 static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc)
4132 {
4133 drm_crtc_cleanup(crtc);
4134 kfree(crtc);
4135 }
4136
4137 static void dm_crtc_destroy_state(struct drm_crtc *crtc,
4138 struct drm_crtc_state *state)
4139 {
4140 struct dm_crtc_state *cur = to_dm_crtc_state(state);
4141
4142 /* TODO Destroy dc_stream objects are stream object is flattened */
4143 if (cur->stream)
4144 dc_stream_release(cur->stream);
4145
4146
4147 __drm_atomic_helper_crtc_destroy_state(state);
4148
4149
4150 kfree(state);
4151 }
4152
4153 static void dm_crtc_reset_state(struct drm_crtc *crtc)
4154 {
4155 struct dm_crtc_state *state;
4156
4157 if (crtc->state)
4158 dm_crtc_destroy_state(crtc, crtc->state);
4159
4160 state = kzalloc(sizeof(*state), GFP_KERNEL);
4161 if (WARN_ON(!state))
4162 return;
4163
4164 crtc->state = &state->base;
4165 crtc->state->crtc = crtc;
4166
4167 }
4168
4169 static struct drm_crtc_state *
4170 dm_crtc_duplicate_state(struct drm_crtc *crtc)
4171 {
4172 struct dm_crtc_state *state, *cur;
4173
4174 cur = to_dm_crtc_state(crtc->state);
4175
4176 if (WARN_ON(!crtc->state))
4177 return NULL;
4178
4179 state = kzalloc(sizeof(*state), GFP_KERNEL);
4180 if (!state)
4181 return NULL;
4182
4183 __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
4184
4185 if (cur->stream) {
4186 state->stream = cur->stream;
4187 dc_stream_retain(state->stream);
4188 }
4189
4190 state->active_planes = cur->active_planes;
4191 state->interrupts_enabled = cur->interrupts_enabled;
4192 state->vrr_params = cur->vrr_params;
4193 state->vrr_infopacket = cur->vrr_infopacket;
4194 state->abm_level = cur->abm_level;
4195 state->vrr_supported = cur->vrr_supported;
4196 state->freesync_config = cur->freesync_config;
4197 state->crc_src = cur->crc_src;
4198 state->cm_has_degamma = cur->cm_has_degamma;
4199 state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb;
4200
4201 /* TODO Duplicate dc_stream after objects are stream object is flattened */
4202
4203 return &state->base;
4204 }
4205
4206 static inline int dm_set_vupdate_irq(struct drm_crtc *crtc, bool enable)
4207 {
4208 enum dc_irq_source irq_source;
4209 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4210 struct amdgpu_device *adev = crtc->dev->dev_private;
4211 int rc;
4212
4213 /* Do not set vupdate for DCN hardware */
4214 if (adev->family > AMDGPU_FAMILY_AI)
4215 return 0;
4216
4217 irq_source = IRQ_TYPE_VUPDATE + acrtc->otg_inst;
4218
4219 rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
4220
4221 DRM_DEBUG_DRIVER("crtc %d - vupdate irq %sabling: r=%d\n",
4222 acrtc->crtc_id, enable ? "en" : "dis", rc);
4223 return rc;
4224 }
4225
4226 static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
4227 {
4228 enum dc_irq_source irq_source;
4229 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
4230 struct amdgpu_device *adev = crtc->dev->dev_private;
4231 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
4232 int rc = 0;
4233
4234 if (enable) {
4235 /* vblank irq on -> Only need vupdate irq in vrr mode */
4236 if (amdgpu_dm_vrr_active(acrtc_state))
4237 rc = dm_set_vupdate_irq(crtc, true);
4238 } else {
4239 /* vblank irq off -> vupdate irq off */
4240 rc = dm_set_vupdate_irq(crtc, false);
4241 }
4242
4243 if (rc)
4244 return rc;
4245
4246 irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
4247 return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
4248 }
4249
4250 static int dm_enable_vblank(struct drm_crtc *crtc)
4251 {
4252 return dm_set_vblank(crtc, true);
4253 }
4254
4255 static void dm_disable_vblank(struct drm_crtc *crtc)
4256 {
4257 dm_set_vblank(crtc, false);
4258 }
4259
4260 /* Implemented only the options currently availible for the driver */
4261 static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
4262 .reset = dm_crtc_reset_state,
4263 .destroy = amdgpu_dm_crtc_destroy,
4264 .gamma_set = drm_atomic_helper_legacy_gamma_set,
4265 .set_config = drm_atomic_helper_set_config,
4266 .page_flip = drm_atomic_helper_page_flip,
4267 .atomic_duplicate_state = dm_crtc_duplicate_state,
4268 .atomic_destroy_state = dm_crtc_destroy_state,
4269 .set_crc_source = amdgpu_dm_crtc_set_crc_source,
4270 .verify_crc_source = amdgpu_dm_crtc_verify_crc_source,
4271 .get_crc_sources = amdgpu_dm_crtc_get_crc_sources,
4272 .enable_vblank = dm_enable_vblank,
4273 .disable_vblank = dm_disable_vblank,
4274 };
4275
4276 static enum drm_connector_status
4277 amdgpu_dm_connector_detect(struct drm_connector *connector, bool force)
4278 {
4279 bool connected;
4280 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
4281
4282 /*
4283 * Notes:
4284 * 1. This interface is NOT called in context of HPD irq.
4285 * 2. This interface *is called* in context of user-mode ioctl. Which
4286 * makes it a bad place for *any* MST-related activity.
4287 */
4288
4289 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED &&
4290 !aconnector->fake_enable)
4291 connected = (aconnector->dc_sink != NULL);
4292 else
4293 connected = (aconnector->base.force == DRM_FORCE_ON);
4294
4295 return (connected ? connector_status_connected :
4296 connector_status_disconnected);
4297 }
4298
4299 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
4300 struct drm_connector_state *connector_state,
4301 struct drm_property *property,
4302 uint64_t val)
4303 {
4304 struct drm_device *dev = connector->dev;
4305 struct amdgpu_device *adev = dev->dev_private;
4306 struct dm_connector_state *dm_old_state =
4307 to_dm_connector_state(connector->state);
4308 struct dm_connector_state *dm_new_state =
4309 to_dm_connector_state(connector_state);
4310
4311 int ret = -EINVAL;
4312
4313 if (property == dev->mode_config.scaling_mode_property) {
4314 enum amdgpu_rmx_type rmx_type;
4315
4316 switch (val) {
4317 case DRM_MODE_SCALE_CENTER:
4318 rmx_type = RMX_CENTER;
4319 break;
4320 case DRM_MODE_SCALE_ASPECT:
4321 rmx_type = RMX_ASPECT;
4322 break;
4323 case DRM_MODE_SCALE_FULLSCREEN:
4324 rmx_type = RMX_FULL;
4325 break;
4326 case DRM_MODE_SCALE_NONE:
4327 default:
4328 rmx_type = RMX_OFF;
4329 break;
4330 }
4331
4332 if (dm_old_state->scaling == rmx_type)
4333 return 0;
4334
4335 dm_new_state->scaling = rmx_type;
4336 ret = 0;
4337 } else if (property == adev->mode_info.underscan_hborder_property) {
4338 dm_new_state->underscan_hborder = val;
4339 ret = 0;
4340 } else if (property == adev->mode_info.underscan_vborder_property) {
4341 dm_new_state->underscan_vborder = val;
4342 ret = 0;
4343 } else if (property == adev->mode_info.underscan_property) {
4344 dm_new_state->underscan_enable = val;
4345 ret = 0;
4346 } else if (property == adev->mode_info.abm_level_property) {
4347 dm_new_state->abm_level = val;
4348 ret = 0;
4349 }
4350
4351 return ret;
4352 }
4353
4354 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
4355 const struct drm_connector_state *state,
4356 struct drm_property *property,
4357 uint64_t *val)
4358 {
4359 struct drm_device *dev = connector->dev;
4360 struct amdgpu_device *adev = dev->dev_private;
4361 struct dm_connector_state *dm_state =
4362 to_dm_connector_state(state);
4363 int ret = -EINVAL;
4364
4365 if (property == dev->mode_config.scaling_mode_property) {
4366 switch (dm_state->scaling) {
4367 case RMX_CENTER:
4368 *val = DRM_MODE_SCALE_CENTER;
4369 break;
4370 case RMX_ASPECT:
4371 *val = DRM_MODE_SCALE_ASPECT;
4372 break;
4373 case RMX_FULL:
4374 *val = DRM_MODE_SCALE_FULLSCREEN;
4375 break;
4376 case RMX_OFF:
4377 default:
4378 *val = DRM_MODE_SCALE_NONE;
4379 break;
4380 }
4381 ret = 0;
4382 } else if (property == adev->mode_info.underscan_hborder_property) {
4383 *val = dm_state->underscan_hborder;
4384 ret = 0;
4385 } else if (property == adev->mode_info.underscan_vborder_property) {
4386 *val = dm_state->underscan_vborder;
4387 ret = 0;
4388 } else if (property == adev->mode_info.underscan_property) {
4389 *val = dm_state->underscan_enable;
4390 ret = 0;
4391 } else if (property == adev->mode_info.abm_level_property) {
4392 *val = dm_state->abm_level;
4393 ret = 0;
4394 }
4395
4396 return ret;
4397 }
4398
4399 static void amdgpu_dm_connector_unregister(struct drm_connector *connector)
4400 {
4401 struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector);
4402
4403 drm_dp_aux_unregister(&amdgpu_dm_connector->dm_dp_aux.aux);
4404 }
4405
4406 static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
4407 {
4408 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
4409 const struct dc_link *link = aconnector->dc_link;
4410 struct amdgpu_device *adev = connector->dev->dev_private;
4411 struct amdgpu_display_manager *dm = &adev->dm;
4412
4413 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
4414 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
4415
4416 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
4417 link->type != dc_connection_none &&
4418 dm->backlight_dev) {
4419 backlight_device_unregister(dm->backlight_dev);
4420 dm->backlight_dev = NULL;
4421 }
4422 #endif
4423
4424 if (aconnector->dc_em_sink)
4425 dc_sink_release(aconnector->dc_em_sink);
4426 aconnector->dc_em_sink = NULL;
4427 if (aconnector->dc_sink)
4428 dc_sink_release(aconnector->dc_sink);
4429 aconnector->dc_sink = NULL;
4430
4431 drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux);
4432 drm_connector_unregister(connector);
4433 drm_connector_cleanup(connector);
4434 if (aconnector->i2c) {
4435 i2c_del_adapter(&aconnector->i2c->base);
4436 kfree(aconnector->i2c);
4437 }
4438
4439 kfree(connector);
4440 }
4441
4442 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
4443 {
4444 struct dm_connector_state *state =
4445 to_dm_connector_state(connector->state);
4446
4447 if (connector->state)
4448 __drm_atomic_helper_connector_destroy_state(connector->state);
4449
4450 kfree(state);
4451
4452 state = kzalloc(sizeof(*state), GFP_KERNEL);
4453
4454 if (state) {
4455 state->scaling = RMX_OFF;
4456 state->underscan_enable = false;
4457 state->underscan_hborder = 0;
4458 state->underscan_vborder = 0;
4459 state->base.max_requested_bpc = 8;
4460 state->vcpi_slots = 0;
4461 state->pbn = 0;
4462 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
4463 state->abm_level = amdgpu_dm_abm_level;
4464
4465 __drm_atomic_helper_connector_reset(connector, &state->base);
4466 }
4467 }
4468
4469 struct drm_connector_state *
4470 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
4471 {
4472 struct dm_connector_state *state =
4473 to_dm_connector_state(connector->state);
4474
4475 struct dm_connector_state *new_state =
4476 kmemdup(state, sizeof(*state), GFP_KERNEL);
4477
4478 if (!new_state)
4479 return NULL;
4480
4481 __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
4482
4483 new_state->freesync_capable = state->freesync_capable;
4484 new_state->abm_level = state->abm_level;
4485 new_state->scaling = state->scaling;
4486 new_state->underscan_enable = state->underscan_enable;
4487 new_state->underscan_hborder = state->underscan_hborder;
4488 new_state->underscan_vborder = state->underscan_vborder;
4489 new_state->vcpi_slots = state->vcpi_slots;
4490 new_state->pbn = state->pbn;
4491 return &new_state->base;
4492 }
4493
4494 static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
4495 .reset = amdgpu_dm_connector_funcs_reset,
4496 .detect = amdgpu_dm_connector_detect,
4497 .fill_modes = drm_helper_probe_single_connector_modes,
4498 .destroy = amdgpu_dm_connector_destroy,
4499 .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
4500 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
4501 .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
4502 .atomic_get_property = amdgpu_dm_connector_atomic_get_property,
4503 .early_unregister = amdgpu_dm_connector_unregister
4504 };
4505
4506 static int get_modes(struct drm_connector *connector)
4507 {
4508 return amdgpu_dm_connector_get_modes(connector);
4509 }
4510
4511 static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
4512 {
4513 struct dc_sink_init_data init_params = {
4514 .link = aconnector->dc_link,
4515 .sink_signal = SIGNAL_TYPE_VIRTUAL
4516 };
4517 struct edid *edid;
4518
4519 if (!aconnector->base.edid_blob_ptr) {
4520 DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
4521 aconnector->base.name);
4522
4523 aconnector->base.force = DRM_FORCE_OFF;
4524 aconnector->base.override_edid = false;
4525 return;
4526 }
4527
4528 edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
4529
4530 aconnector->edid = edid;
4531
4532 aconnector->dc_em_sink = dc_link_add_remote_sink(
4533 aconnector->dc_link,
4534 (uint8_t *)edid,
4535 (edid->extensions + 1) * EDID_LENGTH,
4536 &init_params);
4537
4538 if (aconnector->base.force == DRM_FORCE_ON) {
4539 aconnector->dc_sink = aconnector->dc_link->local_sink ?
4540 aconnector->dc_link->local_sink :
4541 aconnector->dc_em_sink;
4542 dc_sink_retain(aconnector->dc_sink);
4543 }
4544 }
4545
4546 static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector)
4547 {
4548 struct dc_link *link = (struct dc_link *)aconnector->dc_link;
4549
4550 /*
4551 * In case of headless boot with force on for DP managed connector
4552 * Those settings have to be != 0 to get initial modeset
4553 */
4554 if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) {
4555 link->verified_link_cap.lane_count = LANE_COUNT_FOUR;
4556 link->verified_link_cap.link_rate = LINK_RATE_HIGH2;
4557 }
4558
4559
4560 aconnector->base.override_edid = true;
4561 create_eml_sink(aconnector);
4562 }
4563
4564 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
4565 struct drm_display_mode *mode)
4566 {
4567 int result = MODE_ERROR;
4568 struct dc_sink *dc_sink;
4569 struct amdgpu_device *adev = connector->dev->dev_private;
4570 /* TODO: Unhardcode stream count */
4571 struct dc_stream_state *stream;
4572 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
4573 enum dc_status dc_result = DC_OK;
4574
4575 if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
4576 (mode->flags & DRM_MODE_FLAG_DBLSCAN))
4577 return result;
4578
4579 /*
4580 * Only run this the first time mode_valid is called to initilialize
4581 * EDID mgmt
4582 */
4583 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED &&
4584 !aconnector->dc_em_sink)
4585 handle_edid_mgmt(aconnector);
4586
4587 dc_sink = to_amdgpu_dm_connector(connector)->dc_sink;
4588
4589 if (dc_sink == NULL) {
4590 DRM_ERROR("dc_sink is NULL!\n");
4591 goto fail;
4592 }
4593
4594 stream = create_stream_for_sink(aconnector, mode, NULL, NULL);
4595 if (stream == NULL) {
4596 DRM_ERROR("Failed to create stream for sink!\n");
4597 goto fail;
4598 }
4599
4600 dc_result = dc_validate_stream(adev->dm.dc, stream);
4601
4602 if (dc_result == DC_OK)
4603 result = MODE_OK;
4604 else
4605 DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d\n",
4606 mode->hdisplay,
4607 mode->vdisplay,
4608 mode->clock,
4609 dc_result);
4610
4611 dc_stream_release(stream);
4612
4613 fail:
4614 /* TODO: error handling*/
4615 return result;
4616 }
4617
4618 static int fill_hdr_info_packet(const struct drm_connector_state *state,
4619 struct dc_info_packet *out)
4620 {
4621 struct hdmi_drm_infoframe frame;
4622 unsigned char buf[30]; /* 26 + 4 */
4623 ssize_t len;
4624 int ret, i;
4625
4626 memset(out, 0, sizeof(*out));
4627
4628 if (!state->hdr_output_metadata)
4629 return 0;
4630
4631 ret = drm_hdmi_infoframe_set_hdr_metadata(&frame, state);
4632 if (ret)
4633 return ret;
4634
4635 len = hdmi_drm_infoframe_pack_only(&frame, buf, sizeof(buf));
4636 if (len < 0)
4637 return (int)len;
4638
4639 /* Static metadata is a fixed 26 bytes + 4 byte header. */
4640 if (len != 30)
4641 return -EINVAL;
4642
4643 /* Prepare the infopacket for DC. */
4644 switch (state->connector->connector_type) {
4645 case DRM_MODE_CONNECTOR_HDMIA:
4646 out->hb0 = 0x87; /* type */
4647 out->hb1 = 0x01; /* version */
4648 out->hb2 = 0x1A; /* length */
4649 out->sb[0] = buf[3]; /* checksum */
4650 i = 1;
4651 break;
4652
4653 case DRM_MODE_CONNECTOR_DisplayPort:
4654 case DRM_MODE_CONNECTOR_eDP:
4655 out->hb0 = 0x00; /* sdp id, zero */
4656 out->hb1 = 0x87; /* type */
4657 out->hb2 = 0x1D; /* payload len - 1 */
4658 out->hb3 = (0x13 << 2); /* sdp version */
4659 out->sb[0] = 0x01; /* version */
4660 out->sb[1] = 0x1A; /* length */
4661 i = 2;
4662 break;
4663
4664 default:
4665 return -EINVAL;
4666 }
4667
4668 memcpy(&out->sb[i], &buf[4], 26);
4669 out->valid = true;
4670
4671 print_hex_dump(KERN_DEBUG, "HDR SB:", DUMP_PREFIX_NONE, 16, 1, out->sb,
4672 sizeof(out->sb), false);
4673
4674 return 0;
4675 }
4676
4677 static bool
4678 is_hdr_metadata_different(const struct drm_connector_state *old_state,
4679 const struct drm_connector_state *new_state)
4680 {
4681 struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
4682 struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
4683
4684 if (old_blob != new_blob) {
4685 if (old_blob && new_blob &&
4686 old_blob->length == new_blob->length)
4687 return memcmp(old_blob->data, new_blob->data,
4688 old_blob->length);
4689
4690 return true;
4691 }
4692
4693 return false;
4694 }
4695
4696 static int
4697 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
4698 struct drm_atomic_state *state)
4699 {
4700 struct drm_connector_state *new_con_state =
4701 drm_atomic_get_new_connector_state(state, conn);
4702 struct drm_connector_state *old_con_state =
4703 drm_atomic_get_old_connector_state(state, conn);
4704 struct drm_crtc *crtc = new_con_state->crtc;
4705 struct drm_crtc_state *new_crtc_state;
4706 int ret;
4707
4708 if (!crtc)
4709 return 0;
4710
4711 if (is_hdr_metadata_different(old_con_state, new_con_state)) {
4712 struct dc_info_packet hdr_infopacket;
4713
4714 ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
4715 if (ret)
4716 return ret;
4717
4718 new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
4719 if (IS_ERR(new_crtc_state))
4720 return PTR_ERR(new_crtc_state);
4721
4722 /*
4723 * DC considers the stream backends changed if the
4724 * static metadata changes. Forcing the modeset also
4725 * gives a simple way for userspace to switch from
4726 * 8bpc to 10bpc when setting the metadata to enter
4727 * or exit HDR.
4728 *
4729 * Changing the static metadata after it's been
4730 * set is permissible, however. So only force a
4731 * modeset if we're entering or exiting HDR.
4732 */
4733 new_crtc_state->mode_changed =
4734 !old_con_state->hdr_output_metadata ||
4735 !new_con_state->hdr_output_metadata;
4736 }
4737
4738 return 0;
4739 }
4740
4741 static const struct drm_connector_helper_funcs
4742 amdgpu_dm_connector_helper_funcs = {
4743 /*
4744 * If hotplugging a second bigger display in FB Con mode, bigger resolution
4745 * modes will be filtered by drm_mode_validate_size(), and those modes
4746 * are missing after user start lightdm. So we need to renew modes list.
4747 * in get_modes call back, not just return the modes count
4748 */
4749 .get_modes = get_modes,
4750 .mode_valid = amdgpu_dm_connector_mode_valid,
4751 .atomic_check = amdgpu_dm_connector_atomic_check,
4752 };
4753
4754 static void dm_crtc_helper_disable(struct drm_crtc *crtc)
4755 {
4756 }
4757
4758 static bool does_crtc_have_active_cursor(struct drm_crtc_state *new_crtc_state)
4759 {
4760 struct drm_device *dev = new_crtc_state->crtc->dev;
4761 struct drm_plane *plane;
4762
4763 drm_for_each_plane_mask(plane, dev, new_crtc_state->plane_mask) {
4764 if (plane->type == DRM_PLANE_TYPE_CURSOR)
4765 return true;
4766 }
4767
4768 return false;
4769 }
4770
4771 static int count_crtc_active_planes(struct drm_crtc_state *new_crtc_state)
4772 {
4773 struct drm_atomic_state *state = new_crtc_state->state;
4774 struct drm_plane *plane;
4775 int num_active = 0;
4776
4777 drm_for_each_plane_mask(plane, state->dev, new_crtc_state->plane_mask) {
4778 struct drm_plane_state *new_plane_state;
4779
4780 /* Cursor planes are "fake". */
4781 if (plane->type == DRM_PLANE_TYPE_CURSOR)
4782 continue;
4783
4784 new_plane_state = drm_atomic_get_new_plane_state(state, plane);
4785
4786 if (!new_plane_state) {
4787 /*
4788 * The plane is enable on the CRTC and hasn't changed
4789 * state. This means that it previously passed
4790 * validation and is therefore enabled.
4791 */
4792 num_active += 1;
4793 continue;
4794 }
4795
4796 /* We need a framebuffer to be considered enabled. */
4797 num_active += (new_plane_state->fb != NULL);
4798 }
4799
4800 return num_active;
4801 }
4802
4803 /*
4804 * Sets whether interrupts should be enabled on a specific CRTC.
4805 * We require that the stream be enabled and that there exist active
4806 * DC planes on the stream.
4807 */
4808 static void
4809 dm_update_crtc_interrupt_state(struct drm_crtc *crtc,
4810 struct drm_crtc_state *new_crtc_state)
4811 {
4812 struct dm_crtc_state *dm_new_crtc_state =
4813 to_dm_crtc_state(new_crtc_state);
4814
4815 dm_new_crtc_state->active_planes = 0;
4816 dm_new_crtc_state->interrupts_enabled = false;
4817
4818 if (!dm_new_crtc_state->stream)
4819 return;
4820
4821 dm_new_crtc_state->active_planes =
4822 count_crtc_active_planes(new_crtc_state);
4823
4824 dm_new_crtc_state->interrupts_enabled =
4825 dm_new_crtc_state->active_planes > 0;
4826 }
4827
4828 static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
4829 struct drm_crtc_state *state)
4830 {
4831 struct amdgpu_device *adev = crtc->dev->dev_private;
4832 struct dc *dc = adev->dm.dc;
4833 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
4834 int ret = -EINVAL;
4835
4836 /*
4837 * Update interrupt state for the CRTC. This needs to happen whenever
4838 * the CRTC has changed or whenever any of its planes have changed.
4839 * Atomic check satisfies both of these requirements since the CRTC
4840 * is added to the state by DRM during drm_atomic_helper_check_planes.
4841 */
4842 dm_update_crtc_interrupt_state(crtc, state);
4843
4844 if (unlikely(!dm_crtc_state->stream &&
4845 modeset_required(state, NULL, dm_crtc_state->stream))) {
4846 WARN_ON(1);
4847 return ret;
4848 }
4849
4850 /* In some use cases, like reset, no stream is attached */
4851 if (!dm_crtc_state->stream)
4852 return 0;
4853
4854 /*
4855 * We want at least one hardware plane enabled to use
4856 * the stream with a cursor enabled.
4857 */
4858 if (state->enable && state->active &&
4859 does_crtc_have_active_cursor(state) &&
4860 dm_crtc_state->active_planes == 0)
4861 return -EINVAL;
4862
4863 if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK)
4864 return 0;
4865
4866 return ret;
4867 }
4868
4869 static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc,
4870 const struct drm_display_mode *mode,
4871 struct drm_display_mode *adjusted_mode)
4872 {
4873 return true;
4874 }
4875
4876 static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = {
4877 .disable = dm_crtc_helper_disable,
4878 .atomic_check = dm_crtc_helper_atomic_check,
4879 .mode_fixup = dm_crtc_helper_mode_fixup
4880 };
4881
4882 static void dm_encoder_helper_disable(struct drm_encoder *encoder)
4883 {
4884
4885 }
4886
4887 static int convert_dc_color_depth_into_bpc (enum dc_color_depth display_color_depth)
4888 {
4889 switch (display_color_depth) {
4890 case COLOR_DEPTH_666:
4891 return 6;
4892 case COLOR_DEPTH_888:
4893 return 8;
4894 case COLOR_DEPTH_101010:
4895 return 10;
4896 case COLOR_DEPTH_121212:
4897 return 12;
4898 case COLOR_DEPTH_141414:
4899 return 14;
4900 case COLOR_DEPTH_161616:
4901 return 16;
4902 default:
4903 break;
4904 }
4905 return 0;
4906 }
4907
4908 static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
4909 struct drm_crtc_state *crtc_state,
4910 struct drm_connector_state *conn_state)
4911 {
4912 struct drm_atomic_state *state = crtc_state->state;
4913 struct drm_connector *connector = conn_state->connector;
4914 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
4915 struct dm_connector_state *dm_new_connector_state = to_dm_connector_state(conn_state);
4916 const struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
4917 struct drm_dp_mst_topology_mgr *mst_mgr;
4918 struct drm_dp_mst_port *mst_port;
4919 enum dc_color_depth color_depth;
4920 int clock, bpp = 0;
4921 bool is_y420 = false;
4922
4923 if (!aconnector->port || !aconnector->dc_sink)
4924 return 0;
4925
4926 mst_port = aconnector->port;
4927 mst_mgr = &aconnector->mst_port->mst_mgr;
4928
4929 if (!crtc_state->connectors_changed && !crtc_state->mode_changed)
4930 return 0;
4931
4932 if (!state->duplicated) {
4933 is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) &&
4934 aconnector->force_yuv420_output;
4935 color_depth = convert_color_depth_from_display_info(connector, conn_state,
4936 is_y420);
4937 bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
4938 clock = adjusted_mode->clock;
4939 dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
4940 }
4941 dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state,
4942 mst_mgr,
4943 mst_port,
4944 dm_new_connector_state->pbn,
4945 0);
4946 if (dm_new_connector_state->vcpi_slots < 0) {
4947 DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots);
4948 return dm_new_connector_state->vcpi_slots;
4949 }
4950 return 0;
4951 }
4952
4953 const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
4954 .disable = dm_encoder_helper_disable,
4955 .atomic_check = dm_encoder_helper_atomic_check
4956 };
4957
4958 #if defined(CONFIG_DRM_AMD_DC_DCN)
4959 static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
4960 struct dc_state *dc_state)
4961 {
4962 struct dc_stream_state *stream = NULL;
4963 struct drm_connector *connector;
4964 struct drm_connector_state *new_con_state, *old_con_state;
4965 struct amdgpu_dm_connector *aconnector;
4966 struct dm_connector_state *dm_conn_state;
4967 int i, j, clock, bpp;
4968 int vcpi, pbn_div, pbn = 0;
4969
4970 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
4971
4972 aconnector = to_amdgpu_dm_connector(connector);
4973
4974 if (!aconnector->port)
4975 continue;
4976
4977 if (!new_con_state || !new_con_state->crtc)
4978 continue;
4979
4980 dm_conn_state = to_dm_connector_state(new_con_state);
4981
4982 for (j = 0; j < dc_state->stream_count; j++) {
4983 stream = dc_state->streams[j];
4984 if (!stream)
4985 continue;
4986
4987 if ((struct amdgpu_dm_connector*)stream->dm_stream_context == aconnector)
4988 break;
4989
4990 stream = NULL;
4991 }
4992
4993 if (!stream)
4994 continue;
4995
4996 if (stream->timing.flags.DSC != 1) {
4997 drm_dp_mst_atomic_enable_dsc(state,
4998 aconnector->port,
4999 dm_conn_state->pbn,
5000 0,
5001 false);
5002 continue;
5003 }
5004
5005 pbn_div = dm_mst_get_pbn_divider(stream->link);
5006 bpp = stream->timing.dsc_cfg.bits_per_pixel;
5007 clock = stream->timing.pix_clk_100hz / 10;
5008 pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
5009 vcpi = drm_dp_mst_atomic_enable_dsc(state,
5010 aconnector->port,
5011 pbn, pbn_div,
5012 true);
5013 if (vcpi < 0)
5014 return vcpi;
5015
5016 dm_conn_state->pbn = pbn;
5017 dm_conn_state->vcpi_slots = vcpi;
5018 }
5019 return 0;
5020 }
5021 #endif
5022
5023 static void dm_drm_plane_reset(struct drm_plane *plane)
5024 {
5025 struct dm_plane_state *amdgpu_state = NULL;
5026
5027 if (plane->state)
5028 plane->funcs->atomic_destroy_state(plane, plane->state);
5029
5030 amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL);
5031 WARN_ON(amdgpu_state == NULL);
5032
5033 if (amdgpu_state)
5034 __drm_atomic_helper_plane_reset(plane, &amdgpu_state->base);
5035 }
5036
5037 static struct drm_plane_state *
5038 dm_drm_plane_duplicate_state(struct drm_plane *plane)
5039 {
5040 struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
5041
5042 old_dm_plane_state = to_dm_plane_state(plane->state);
5043 dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL);
5044 if (!dm_plane_state)
5045 return NULL;
5046
5047 __drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base);
5048
5049 if (old_dm_plane_state->dc_state) {
5050 dm_plane_state->dc_state = old_dm_plane_state->dc_state;
5051 dc_plane_state_retain(dm_plane_state->dc_state);
5052 }
5053
5054 return &dm_plane_state->base;
5055 }
5056
5057 void dm_drm_plane_destroy_state(struct drm_plane *plane,
5058 struct drm_plane_state *state)
5059 {
5060 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
5061
5062 if (dm_plane_state->dc_state)
5063 dc_plane_state_release(dm_plane_state->dc_state);
5064
5065 drm_atomic_helper_plane_destroy_state(plane, state);
5066 }
5067
5068 static const struct drm_plane_funcs dm_plane_funcs = {
5069 .update_plane = drm_atomic_helper_update_plane,
5070 .disable_plane = drm_atomic_helper_disable_plane,
5071 .destroy = drm_primary_helper_destroy,
5072 .reset = dm_drm_plane_reset,
5073 .atomic_duplicate_state = dm_drm_plane_duplicate_state,
5074 .atomic_destroy_state = dm_drm_plane_destroy_state,
5075 };
5076
5077 static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
5078 struct drm_plane_state *new_state)
5079 {
5080 struct amdgpu_framebuffer *afb;
5081 struct drm_gem_object *obj;
5082 struct amdgpu_device *adev;
5083 struct amdgpu_bo *rbo;
5084 struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old;
5085 struct list_head list;
5086 struct ttm_validate_buffer tv;
5087 struct ww_acquire_ctx ticket;
5088 uint64_t tiling_flags;
5089 uint32_t domain;
5090 int r;
5091
5092 dm_plane_state_old = to_dm_plane_state(plane->state);
5093 dm_plane_state_new = to_dm_plane_state(new_state);
5094
5095 if (!new_state->fb) {
5096 DRM_DEBUG_DRIVER("No FB bound\n");
5097 return 0;
5098 }
5099
5100 afb = to_amdgpu_framebuffer(new_state->fb);
5101 obj = new_state->fb->obj[0];
5102 rbo = gem_to_amdgpu_bo(obj);
5103 adev = amdgpu_ttm_adev(rbo->tbo.bdev);
5104 INIT_LIST_HEAD(&list);
5105
5106 tv.bo = &rbo->tbo;
5107 tv.num_shared = 1;
5108 list_add(&tv.head, &list);
5109
5110 r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL);
5111 if (r) {
5112 dev_err(adev->dev, "fail to reserve bo (%d)\n", r);
5113 return r;
5114 }
5115
5116 if (plane->type != DRM_PLANE_TYPE_CURSOR)
5117 domain = amdgpu_display_supported_domains(adev, rbo->flags);
5118 else
5119 domain = AMDGPU_GEM_DOMAIN_VRAM;
5120
5121 r = amdgpu_bo_pin(rbo, domain);
5122 if (unlikely(r != 0)) {
5123 if (r != -ERESTARTSYS)
5124 DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
5125 ttm_eu_backoff_reservation(&ticket, &list);
5126 return r;
5127 }
5128
5129 r = amdgpu_ttm_alloc_gart(&rbo->tbo);
5130 if (unlikely(r != 0)) {
5131 amdgpu_bo_unpin(rbo);
5132 ttm_eu_backoff_reservation(&ticket, &list);
5133 DRM_ERROR("%p bind failed\n", rbo);
5134 return r;
5135 }
5136
5137 amdgpu_bo_get_tiling_flags(rbo, &tiling_flags);
5138
5139 ttm_eu_backoff_reservation(&ticket, &list);
5140
5141 afb->address = amdgpu_bo_gpu_offset(rbo);
5142
5143 amdgpu_bo_ref(rbo);
5144
5145 if (dm_plane_state_new->dc_state &&
5146 dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) {
5147 struct dc_plane_state *plane_state = dm_plane_state_new->dc_state;
5148
5149 fill_plane_buffer_attributes(
5150 adev, afb, plane_state->format, plane_state->rotation,
5151 tiling_flags, &plane_state->tiling_info,
5152 &plane_state->plane_size, &plane_state->dcc,
5153 &plane_state->address);
5154 }
5155
5156 return 0;
5157 }
5158
5159 static void dm_plane_helper_cleanup_fb(struct drm_plane *plane,
5160 struct drm_plane_state *old_state)
5161 {
5162 struct amdgpu_bo *rbo;
5163 int r;
5164
5165 if (!old_state->fb)
5166 return;
5167
5168 rbo = gem_to_amdgpu_bo(old_state->fb->obj[0]);
5169 r = amdgpu_bo_reserve(rbo, false);
5170 if (unlikely(r)) {
5171 DRM_ERROR("failed to reserve rbo before unpin\n");
5172 return;
5173 }
5174
5175 amdgpu_bo_unpin(rbo);
5176 amdgpu_bo_unreserve(rbo);
5177 amdgpu_bo_unref(&rbo);
5178 }
5179
5180 static int dm_plane_atomic_check(struct drm_plane *plane,
5181 struct drm_plane_state *state)
5182 {
5183 struct amdgpu_device *adev = plane->dev->dev_private;
5184 struct dc *dc = adev->dm.dc;
5185 struct dm_plane_state *dm_plane_state;
5186 struct dc_scaling_info scaling_info;
5187 int ret;
5188
5189 dm_plane_state = to_dm_plane_state(state);
5190
5191 if (!dm_plane_state->dc_state)
5192 return 0;
5193
5194 ret = fill_dc_scaling_info(state, &scaling_info);
5195 if (ret)
5196 return ret;
5197
5198 if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK)
5199 return 0;
5200
5201 return -EINVAL;
5202 }
5203
5204 static int dm_plane_atomic_async_check(struct drm_plane *plane,
5205 struct drm_plane_state *new_plane_state)
5206 {
5207 /* Only support async updates on cursor planes. */
5208 if (plane->type != DRM_PLANE_TYPE_CURSOR)
5209 return -EINVAL;
5210
5211 return 0;
5212 }
5213
5214 static void dm_plane_atomic_async_update(struct drm_plane *plane,
5215 struct drm_plane_state *new_state)
5216 {
5217 struct drm_plane_state *old_state =
5218 drm_atomic_get_old_plane_state(new_state->state, plane);
5219
5220 swap(plane->state->fb, new_state->fb);
5221
5222 plane->state->src_x = new_state->src_x;
5223 plane->state->src_y = new_state->src_y;
5224 plane->state->src_w = new_state->src_w;
5225 plane->state->src_h = new_state->src_h;
5226 plane->state->crtc_x = new_state->crtc_x;
5227 plane->state->crtc_y = new_state->crtc_y;
5228 plane->state->crtc_w = new_state->crtc_w;
5229 plane->state->crtc_h = new_state->crtc_h;
5230
5231 handle_cursor_update(plane, old_state);
5232 }
5233
5234 static const struct drm_plane_helper_funcs dm_plane_helper_funcs = {
5235 .prepare_fb = dm_plane_helper_prepare_fb,
5236 .cleanup_fb = dm_plane_helper_cleanup_fb,
5237 .atomic_check = dm_plane_atomic_check,
5238 .atomic_async_check = dm_plane_atomic_async_check,
5239 .atomic_async_update = dm_plane_atomic_async_update
5240 };
5241
5242 /*
5243 * TODO: these are currently initialized to rgb formats only.
5244 * For future use cases we should either initialize them dynamically based on
5245 * plane capabilities, or initialize this array to all formats, so internal drm
5246 * check will succeed, and let DC implement proper check
5247 */
5248 static const uint32_t rgb_formats[] = {
5249 DRM_FORMAT_XRGB8888,
5250 DRM_FORMAT_ARGB8888,
5251 DRM_FORMAT_RGBA8888,
5252 DRM_FORMAT_XRGB2101010,
5253 DRM_FORMAT_XBGR2101010,
5254 DRM_FORMAT_ARGB2101010,
5255 DRM_FORMAT_ABGR2101010,
5256 DRM_FORMAT_XBGR8888,
5257 DRM_FORMAT_ABGR8888,
5258 DRM_FORMAT_RGB565,
5259 };
5260
5261 static const uint32_t overlay_formats[] = {
5262 DRM_FORMAT_XRGB8888,
5263 DRM_FORMAT_ARGB8888,
5264 DRM_FORMAT_RGBA8888,
5265 DRM_FORMAT_XBGR8888,
5266 DRM_FORMAT_ABGR8888,
5267 DRM_FORMAT_RGB565
5268 };
5269
5270 static const u32 cursor_formats[] = {
5271 DRM_FORMAT_ARGB8888
5272 };
5273
5274 static int get_plane_formats(const struct drm_plane *plane,
5275 const struct dc_plane_cap *plane_cap,
5276 uint32_t *formats, int max_formats)
5277 {
5278 int i, num_formats = 0;
5279
5280 /*
5281 * TODO: Query support for each group of formats directly from
5282 * DC plane caps. This will require adding more formats to the
5283 * caps list.
5284 */
5285
5286 switch (plane->type) {
5287 case DRM_PLANE_TYPE_PRIMARY:
5288 for (i = 0; i < ARRAY_SIZE(rgb_formats); ++i) {
5289 if (num_formats >= max_formats)
5290 break;
5291
5292 formats[num_formats++] = rgb_formats[i];
5293 }
5294
5295 if (plane_cap && plane_cap->pixel_format_support.nv12)
5296 formats[num_formats++] = DRM_FORMAT_NV12;
5297 break;
5298
5299 case DRM_PLANE_TYPE_OVERLAY:
5300 for (i = 0; i < ARRAY_SIZE(overlay_formats); ++i) {
5301 if (num_formats >= max_formats)
5302 break;
5303
5304 formats[num_formats++] = overlay_formats[i];
5305 }
5306 break;
5307
5308 case DRM_PLANE_TYPE_CURSOR:
5309 for (i = 0; i < ARRAY_SIZE(cursor_formats); ++i) {
5310 if (num_formats >= max_formats)
5311 break;
5312
5313 formats[num_formats++] = cursor_formats[i];
5314 }
5315 break;
5316 }
5317
5318 return num_formats;
5319 }
5320
5321 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
5322 struct drm_plane *plane,
5323 unsigned long possible_crtcs,
5324 const struct dc_plane_cap *plane_cap)
5325 {
5326 uint32_t formats[32];
5327 int num_formats;
5328 int res = -EPERM;
5329
5330 num_formats = get_plane_formats(plane, plane_cap, formats,
5331 ARRAY_SIZE(formats));
5332
5333 res = drm_universal_plane_init(dm->adev->ddev, plane, possible_crtcs,
5334 &dm_plane_funcs, formats, num_formats,
5335 NULL, plane->type, NULL);
5336 if (res)
5337 return res;
5338
5339 if (plane->type == DRM_PLANE_TYPE_OVERLAY &&
5340 plane_cap && plane_cap->per_pixel_alpha) {
5341 unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) |
5342 BIT(DRM_MODE_BLEND_PREMULTI);
5343
5344 drm_plane_create_alpha_property(plane);
5345 drm_plane_create_blend_mode_property(plane, blend_caps);
5346 }
5347
5348 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
5349 plane_cap && plane_cap->pixel_format_support.nv12) {
5350 /* This only affects YUV formats. */
5351 drm_plane_create_color_properties(
5352 plane,
5353 BIT(DRM_COLOR_YCBCR_BT601) |
5354 BIT(DRM_COLOR_YCBCR_BT709),
5355 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
5356 BIT(DRM_COLOR_YCBCR_FULL_RANGE),
5357 DRM_COLOR_YCBCR_BT709, DRM_COLOR_YCBCR_LIMITED_RANGE);
5358 }
5359
5360 drm_plane_helper_add(plane, &dm_plane_helper_funcs);
5361
5362 /* Create (reset) the plane state */
5363 if (plane->funcs->reset)
5364 plane->funcs->reset(plane);
5365
5366 return 0;
5367 }
5368
5369 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
5370 struct drm_plane *plane,
5371 uint32_t crtc_index)
5372 {
5373 struct amdgpu_crtc *acrtc = NULL;
5374 struct drm_plane *cursor_plane;
5375
5376 int res = -ENOMEM;
5377
5378 cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL);
5379 if (!cursor_plane)
5380 goto fail;
5381
5382 cursor_plane->type = DRM_PLANE_TYPE_CURSOR;
5383 res = amdgpu_dm_plane_init(dm, cursor_plane, 0, NULL);
5384
5385 acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL);
5386 if (!acrtc)
5387 goto fail;
5388
5389 res = drm_crtc_init_with_planes(
5390 dm->ddev,
5391 &acrtc->base,
5392 plane,
5393 cursor_plane,
5394 &amdgpu_dm_crtc_funcs, NULL);
5395
5396 if (res)
5397 goto fail;
5398
5399 drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs);
5400
5401 /* Create (reset) the plane state */
5402 if (acrtc->base.funcs->reset)
5403 acrtc->base.funcs->reset(&acrtc->base);
5404
5405 acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size;
5406 acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size;
5407
5408 acrtc->crtc_id = crtc_index;
5409 acrtc->base.enabled = false;
5410 acrtc->otg_inst = -1;
5411
5412 dm->adev->mode_info.crtcs[crtc_index] = acrtc;
5413 drm_crtc_enable_color_mgmt(&acrtc->base, MAX_COLOR_LUT_ENTRIES,
5414 true, MAX_COLOR_LUT_ENTRIES);
5415 drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES);
5416
5417 return 0;
5418
5419 fail:
5420 kfree(acrtc);
5421 kfree(cursor_plane);
5422 return res;
5423 }
5424
5425
5426 static int to_drm_connector_type(enum signal_type st)
5427 {
5428 switch (st) {
5429 case SIGNAL_TYPE_HDMI_TYPE_A:
5430 return DRM_MODE_CONNECTOR_HDMIA;
5431 case SIGNAL_TYPE_EDP:
5432 return DRM_MODE_CONNECTOR_eDP;
5433 case SIGNAL_TYPE_LVDS:
5434 return DRM_MODE_CONNECTOR_LVDS;
5435 case SIGNAL_TYPE_RGB:
5436 return DRM_MODE_CONNECTOR_VGA;
5437 case SIGNAL_TYPE_DISPLAY_PORT:
5438 case SIGNAL_TYPE_DISPLAY_PORT_MST:
5439 return DRM_MODE_CONNECTOR_DisplayPort;
5440 case SIGNAL_TYPE_DVI_DUAL_LINK:
5441 case SIGNAL_TYPE_DVI_SINGLE_LINK:
5442 return DRM_MODE_CONNECTOR_DVID;
5443 case SIGNAL_TYPE_VIRTUAL:
5444 return DRM_MODE_CONNECTOR_VIRTUAL;
5445
5446 default:
5447 return DRM_MODE_CONNECTOR_Unknown;
5448 }
5449 }
5450
5451 static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector)
5452 {
5453 struct drm_encoder *encoder;
5454
5455 /* There is only one encoder per connector */
5456 drm_connector_for_each_possible_encoder(connector, encoder)
5457 return encoder;
5458
5459 return NULL;
5460 }
5461
5462 static void amdgpu_dm_get_native_mode(struct drm_connector *connector)
5463 {
5464 struct drm_encoder *encoder;
5465 struct amdgpu_encoder *amdgpu_encoder;
5466
5467 encoder = amdgpu_dm_connector_to_encoder(connector);
5468
5469 if (encoder == NULL)
5470 return;
5471
5472 amdgpu_encoder = to_amdgpu_encoder(encoder);
5473
5474 amdgpu_encoder->native_mode.clock = 0;
5475
5476 if (!list_empty(&connector->probed_modes)) {
5477 struct drm_display_mode *preferred_mode = NULL;
5478
5479 list_for_each_entry(preferred_mode,
5480 &connector->probed_modes,
5481 head) {
5482 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED)
5483 amdgpu_encoder->native_mode = *preferred_mode;
5484
5485 break;
5486 }
5487
5488 }
5489 }
5490
5491 static struct drm_display_mode *
5492 amdgpu_dm_create_common_mode(struct drm_encoder *encoder,
5493 char *name,
5494 int hdisplay, int vdisplay)
5495 {
5496 struct drm_device *dev = encoder->dev;
5497 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
5498 struct drm_display_mode *mode = NULL;
5499 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
5500
5501 mode = drm_mode_duplicate(dev, native_mode);
5502
5503 if (mode == NULL)
5504 return NULL;
5505
5506 mode->hdisplay = hdisplay;
5507 mode->vdisplay = vdisplay;
5508 mode->type &= ~DRM_MODE_TYPE_PREFERRED;
5509 strscpy(mode->name, name, DRM_DISPLAY_MODE_LEN);
5510
5511 return mode;
5512
5513 }
5514
5515 static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
5516 struct drm_connector *connector)
5517 {
5518 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
5519 struct drm_display_mode *mode = NULL;
5520 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
5521 struct amdgpu_dm_connector *amdgpu_dm_connector =
5522 to_amdgpu_dm_connector(connector);
5523 int i;
5524 int n;
5525 struct mode_size {
5526 char name[DRM_DISPLAY_MODE_LEN];
5527 int w;
5528 int h;
5529 } common_modes[] = {
5530 { "640x480", 640, 480},
5531 { "800x600", 800, 600},
5532 { "1024x768", 1024, 768},
5533 { "1280x720", 1280, 720},
5534 { "1280x800", 1280, 800},
5535 {"1280x1024", 1280, 1024},
5536 { "1440x900", 1440, 900},
5537 {"1680x1050", 1680, 1050},
5538 {"1600x1200", 1600, 1200},
5539 {"1920x1080", 1920, 1080},
5540 {"1920x1200", 1920, 1200}
5541 };
5542
5543 n = ARRAY_SIZE(common_modes);
5544
5545 for (i = 0; i < n; i++) {
5546 struct drm_display_mode *curmode = NULL;
5547 bool mode_existed = false;
5548
5549 if (common_modes[i].w > native_mode->hdisplay ||
5550 common_modes[i].h > native_mode->vdisplay ||
5551 (common_modes[i].w == native_mode->hdisplay &&
5552 common_modes[i].h == native_mode->vdisplay))
5553 continue;
5554
5555 list_for_each_entry(curmode, &connector->probed_modes, head) {
5556 if (common_modes[i].w == curmode->hdisplay &&
5557 common_modes[i].h == curmode->vdisplay) {
5558 mode_existed = true;
5559 break;
5560 }
5561 }
5562
5563 if (mode_existed)
5564 continue;
5565
5566 mode = amdgpu_dm_create_common_mode(encoder,
5567 common_modes[i].name, common_modes[i].w,
5568 common_modes[i].h);
5569 drm_mode_probed_add(connector, mode);
5570 amdgpu_dm_connector->num_modes++;
5571 }
5572 }
5573
5574 static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
5575 struct edid *edid)
5576 {
5577 struct amdgpu_dm_connector *amdgpu_dm_connector =
5578 to_amdgpu_dm_connector(connector);
5579
5580 if (edid) {
5581 /* empty probed_modes */
5582 INIT_LIST_HEAD(&connector->probed_modes);
5583 amdgpu_dm_connector->num_modes =
5584 drm_add_edid_modes(connector, edid);
5585
5586 /* sorting the probed modes before calling function
5587 * amdgpu_dm_get_native_mode() since EDID can have
5588 * more than one preferred mode. The modes that are
5589 * later in the probed mode list could be of higher
5590 * and preferred resolution. For example, 3840x2160
5591 * resolution in base EDID preferred timing and 4096x2160
5592 * preferred resolution in DID extension block later.
5593 */
5594 drm_mode_sort(&connector->probed_modes);
5595 amdgpu_dm_get_native_mode(connector);
5596 } else {
5597 amdgpu_dm_connector->num_modes = 0;
5598 }
5599 }
5600
5601 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
5602 {
5603 struct amdgpu_dm_connector *amdgpu_dm_connector =
5604 to_amdgpu_dm_connector(connector);
5605 struct drm_encoder *encoder;
5606 struct edid *edid = amdgpu_dm_connector->edid;
5607
5608 encoder = amdgpu_dm_connector_to_encoder(connector);
5609
5610 if (!edid || !drm_edid_is_valid(edid)) {
5611 amdgpu_dm_connector->num_modes =
5612 drm_add_modes_noedid(connector, 640, 480);
5613 } else {
5614 amdgpu_dm_connector_ddc_get_modes(connector, edid);
5615 amdgpu_dm_connector_add_common_modes(encoder, connector);
5616 }
5617 amdgpu_dm_fbc_init(connector);
5618
5619 return amdgpu_dm_connector->num_modes;
5620 }
5621
5622 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
5623 struct amdgpu_dm_connector *aconnector,
5624 int connector_type,
5625 struct dc_link *link,
5626 int link_index)
5627 {
5628 struct amdgpu_device *adev = dm->ddev->dev_private;
5629
5630 /*
5631 * Some of the properties below require access to state, like bpc.
5632 * Allocate some default initial connector state with our reset helper.
5633 */
5634 if (aconnector->base.funcs->reset)
5635 aconnector->base.funcs->reset(&aconnector->base);
5636
5637 aconnector->connector_id = link_index;
5638 aconnector->dc_link = link;
5639 aconnector->base.interlace_allowed = false;
5640 aconnector->base.doublescan_allowed = false;
5641 aconnector->base.stereo_allowed = false;
5642 aconnector->base.dpms = DRM_MODE_DPMS_OFF;
5643 aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */
5644 aconnector->audio_inst = -1;
5645 mutex_init(&aconnector->hpd_lock);
5646
5647 /*
5648 * configure support HPD hot plug connector_>polled default value is 0
5649 * which means HPD hot plug not supported
5650 */
5651 switch (connector_type) {
5652 case DRM_MODE_CONNECTOR_HDMIA:
5653 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
5654 aconnector->base.ycbcr_420_allowed =
5655 link->link_enc->features.hdmi_ycbcr420_supported ? true : false;
5656 break;
5657 case DRM_MODE_CONNECTOR_DisplayPort:
5658 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
5659 aconnector->base.ycbcr_420_allowed =
5660 link->link_enc->features.dp_ycbcr420_supported ? true : false;
5661 break;
5662 case DRM_MODE_CONNECTOR_DVID:
5663 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
5664 break;
5665 default:
5666 break;
5667 }
5668
5669 drm_object_attach_property(&aconnector->base.base,
5670 dm->ddev->mode_config.scaling_mode_property,
5671 DRM_MODE_SCALE_NONE);
5672
5673 drm_object_attach_property(&aconnector->base.base,
5674 adev->mode_info.underscan_property,
5675 UNDERSCAN_OFF);
5676 drm_object_attach_property(&aconnector->base.base,
5677 adev->mode_info.underscan_hborder_property,
5678 0);
5679 drm_object_attach_property(&aconnector->base.base,
5680 adev->mode_info.underscan_vborder_property,
5681 0);
5682
5683 drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
5684
5685 /* This defaults to the max in the range, but we want 8bpc for non-edp. */
5686 aconnector->base.state->max_bpc = (connector_type == DRM_MODE_CONNECTOR_eDP) ? 16 : 8;
5687 aconnector->base.state->max_requested_bpc = aconnector->base.state->max_bpc;
5688
5689 if (connector_type == DRM_MODE_CONNECTOR_eDP &&
5690 dc_is_dmcu_initialized(adev->dm.dc)) {
5691 drm_object_attach_property(&aconnector->base.base,
5692 adev->mode_info.abm_level_property, 0);
5693 }
5694
5695 if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
5696 connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5697 connector_type == DRM_MODE_CONNECTOR_eDP) {
5698 drm_object_attach_property(
5699 &aconnector->base.base,
5700 dm->ddev->mode_config.hdr_output_metadata_property, 0);
5701
5702 drm_connector_attach_vrr_capable_property(
5703 &aconnector->base);
5704 #ifdef CONFIG_DRM_AMD_DC_HDCP
5705 if (adev->asic_type >= CHIP_RAVEN)
5706 drm_connector_attach_content_protection_property(&aconnector->base, true);
5707 #endif
5708 }
5709 }
5710
5711 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
5712 struct i2c_msg *msgs, int num)
5713 {
5714 struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap);
5715 struct ddc_service *ddc_service = i2c->ddc_service;
5716 struct i2c_command cmd;
5717 int i;
5718 int result = -EIO;
5719
5720 cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL);
5721
5722 if (!cmd.payloads)
5723 return result;
5724
5725 cmd.number_of_payloads = num;
5726 cmd.engine = I2C_COMMAND_ENGINE_DEFAULT;
5727 cmd.speed = 100;
5728
5729 for (i = 0; i < num; i++) {
5730 cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
5731 cmd.payloads[i].address = msgs[i].addr;
5732 cmd.payloads[i].length = msgs[i].len;
5733 cmd.payloads[i].data = msgs[i].buf;
5734 }
5735
5736 if (dc_submit_i2c(
5737 ddc_service->ctx->dc,
5738 ddc_service->ddc_pin->hw_info.ddc_channel,
5739 &cmd))
5740 result = num;
5741
5742 kfree(cmd.payloads);
5743 return result;
5744 }
5745
5746 static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap)
5747 {
5748 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
5749 }
5750
5751 static const struct i2c_algorithm amdgpu_dm_i2c_algo = {
5752 .master_xfer = amdgpu_dm_i2c_xfer,
5753 .functionality = amdgpu_dm_i2c_func,
5754 };
5755
5756 static struct amdgpu_i2c_adapter *
5757 create_i2c(struct ddc_service *ddc_service,
5758 int link_index,
5759 int *res)
5760 {
5761 struct amdgpu_device *adev = ddc_service->ctx->driver_context;
5762 struct amdgpu_i2c_adapter *i2c;
5763
5764 i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL);
5765 if (!i2c)
5766 return NULL;
5767 i2c->base.owner = THIS_MODULE;
5768 i2c->base.class = I2C_CLASS_DDC;
5769 i2c->base.dev.parent = &adev->pdev->dev;
5770 i2c->base.algo = &amdgpu_dm_i2c_algo;
5771 snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
5772 i2c_set_adapdata(&i2c->base, i2c);
5773 i2c->ddc_service = ddc_service;
5774 i2c->ddc_service->ddc_pin->hw_info.ddc_channel = link_index;
5775
5776 return i2c;
5777 }
5778
5779
5780 /*
5781 * Note: this function assumes that dc_link_detect() was called for the
5782 * dc_link which will be represented by this aconnector.
5783 */
5784 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
5785 struct amdgpu_dm_connector *aconnector,
5786 uint32_t link_index,
5787 struct amdgpu_encoder *aencoder)
5788 {
5789 int res = 0;
5790 int connector_type;
5791 struct dc *dc = dm->dc;
5792 struct dc_link *link = dc_get_link_at_index(dc, link_index);
5793 struct amdgpu_i2c_adapter *i2c;
5794
5795 link->priv = aconnector;
5796
5797 DRM_DEBUG_DRIVER("%s()\n", __func__);
5798
5799 i2c = create_i2c(link->ddc, link->link_index, &res);
5800 if (!i2c) {
5801 DRM_ERROR("Failed to create i2c adapter data\n");
5802 return -ENOMEM;
5803 }
5804
5805 aconnector->i2c = i2c;
5806 res = i2c_add_adapter(&i2c->base);
5807
5808 if (res) {
5809 DRM_ERROR("Failed to register hw i2c %d\n", link->link_index);
5810 goto out_free;
5811 }
5812
5813 connector_type = to_drm_connector_type(link->connector_signal);
5814
5815 res = drm_connector_init_with_ddc(
5816 dm->ddev,
5817 &aconnector->base,
5818 &amdgpu_dm_connector_funcs,
5819 connector_type,
5820 &i2c->base);
5821
5822 if (res) {
5823 DRM_ERROR("connector_init failed\n");
5824 aconnector->connector_id = -1;
5825 goto out_free;
5826 }
5827
5828 drm_connector_helper_add(
5829 &aconnector->base,
5830 &amdgpu_dm_connector_helper_funcs);
5831
5832 amdgpu_dm_connector_init_helper(
5833 dm,
5834 aconnector,
5835 connector_type,
5836 link,
5837 link_index);
5838
5839 drm_connector_attach_encoder(
5840 &aconnector->base, &aencoder->base);
5841
5842 drm_connector_register(&aconnector->base);
5843 #if defined(CONFIG_DEBUG_FS)
5844 connector_debugfs_init(aconnector);
5845 aconnector->debugfs_dpcd_address = 0;
5846 aconnector->debugfs_dpcd_size = 0;
5847 #endif
5848
5849 if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
5850 || connector_type == DRM_MODE_CONNECTOR_eDP)
5851 amdgpu_dm_initialize_dp_connector(dm, aconnector);
5852
5853 out_free:
5854 if (res) {
5855 kfree(i2c);
5856 aconnector->i2c = NULL;
5857 }
5858 return res;
5859 }
5860
5861 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev)
5862 {
5863 switch (adev->mode_info.num_crtc) {
5864 case 1:
5865 return 0x1;
5866 case 2:
5867 return 0x3;
5868 case 3:
5869 return 0x7;
5870 case 4:
5871 return 0xf;
5872 case 5:
5873 return 0x1f;
5874 case 6:
5875 default:
5876 return 0x3f;
5877 }
5878 }
5879
5880 static int amdgpu_dm_encoder_init(struct drm_device *dev,
5881 struct amdgpu_encoder *aencoder,
5882 uint32_t link_index)
5883 {
5884 struct amdgpu_device *adev = dev->dev_private;
5885
5886 int res = drm_encoder_init(dev,
5887 &aencoder->base,
5888 &amdgpu_dm_encoder_funcs,
5889 DRM_MODE_ENCODER_TMDS,
5890 NULL);
5891
5892 aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
5893
5894 if (!res)
5895 aencoder->encoder_id = link_index;
5896 else
5897 aencoder->encoder_id = -1;
5898
5899 drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs);
5900
5901 return res;
5902 }
5903
5904 static void manage_dm_interrupts(struct amdgpu_device *adev,
5905 struct amdgpu_crtc *acrtc,
5906 bool enable)
5907 {
5908 /*
5909 * this is not correct translation but will work as soon as VBLANK
5910 * constant is the same as PFLIP
5911 */
5912 int irq_type =
5913 amdgpu_display_crtc_idx_to_irq_type(
5914 adev,
5915 acrtc->crtc_id);
5916
5917 if (enable) {
5918 drm_crtc_vblank_on(&acrtc->base);
5919 amdgpu_irq_get(
5920 adev,
5921 &adev->pageflip_irq,
5922 irq_type);
5923 } else {
5924
5925 amdgpu_irq_put(
5926 adev,
5927 &adev->pageflip_irq,
5928 irq_type);
5929 drm_crtc_vblank_off(&acrtc->base);
5930 }
5931 }
5932
5933 static bool
5934 is_scaling_state_different(const struct dm_connector_state *dm_state,
5935 const struct dm_connector_state *old_dm_state)
5936 {
5937 if (dm_state->scaling != old_dm_state->scaling)
5938 return true;
5939 if (!dm_state->underscan_enable && old_dm_state->underscan_enable) {
5940 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0)
5941 return true;
5942 } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) {
5943 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0)
5944 return true;
5945 } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder ||
5946 dm_state->underscan_vborder != old_dm_state->underscan_vborder)
5947 return true;
5948 return false;
5949 }
5950
5951 #ifdef CONFIG_DRM_AMD_DC_HDCP
5952 static bool is_content_protection_different(struct drm_connector_state *state,
5953 const struct drm_connector_state *old_state,
5954 const struct drm_connector *connector, struct hdcp_workqueue *hdcp_w)
5955 {
5956 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
5957
5958 if (old_state->hdcp_content_type != state->hdcp_content_type &&
5959 state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
5960 state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
5961 return true;
5962 }
5963
5964 /* CP is being re enabled, ignore this */
5965 if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED &&
5966 state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
5967 state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED;
5968 return false;
5969 }
5970
5971 /* S3 resume case, since old state will always be 0 (UNDESIRED) and the restored state will be ENABLED */
5972 if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED &&
5973 state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
5974 state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
5975
5976 /* Check if something is connected/enabled, otherwise we start hdcp but nothing is connected/enabled
5977 * hot-plug, headless s3, dpms
5978 */
5979 if (state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED && connector->dpms == DRM_MODE_DPMS_ON &&
5980 aconnector->dc_sink != NULL)
5981 return true;
5982
5983 if (old_state->content_protection == state->content_protection)
5984 return false;
5985
5986 if (state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED)
5987 return true;
5988
5989 return false;
5990 }
5991
5992 #endif
5993 static void remove_stream(struct amdgpu_device *adev,
5994 struct amdgpu_crtc *acrtc,
5995 struct dc_stream_state *stream)
5996 {
5997 /* this is the update mode case */
5998
5999 acrtc->otg_inst = -1;
6000 acrtc->enabled = false;
6001 }
6002
6003 static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc,
6004 struct dc_cursor_position *position)
6005 {
6006 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
6007 int x, y;
6008 int xorigin = 0, yorigin = 0;
6009
6010 position->enable = false;
6011 position->x = 0;
6012 position->y = 0;
6013
6014 if (!crtc || !plane->state->fb)
6015 return 0;
6016
6017 if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) ||
6018 (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) {
6019 DRM_ERROR("%s: bad cursor width or height %d x %d\n",
6020 __func__,
6021 plane->state->crtc_w,
6022 plane->state->crtc_h);
6023 return -EINVAL;
6024 }
6025
6026 x = plane->state->crtc_x;
6027 y = plane->state->crtc_y;
6028
6029 if (x <= -amdgpu_crtc->max_cursor_width ||
6030 y <= -amdgpu_crtc->max_cursor_height)
6031 return 0;
6032
6033 if (crtc->primary->state) {
6034 /* avivo cursor are offset into the total surface */
6035 x += crtc->primary->state->src_x >> 16;
6036 y += crtc->primary->state->src_y >> 16;
6037 }
6038
6039 if (x < 0) {
6040 xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1);
6041 x = 0;
6042 }
6043 if (y < 0) {
6044 yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1);
6045 y = 0;
6046 }
6047 position->enable = true;
6048 position->x = x;
6049 position->y = y;
6050 position->x_hotspot = xorigin;
6051 position->y_hotspot = yorigin;
6052
6053 return 0;
6054 }
6055
6056 static void handle_cursor_update(struct drm_plane *plane,
6057 struct drm_plane_state *old_plane_state)
6058 {
6059 struct amdgpu_device *adev = plane->dev->dev_private;
6060 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb);
6061 struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc;
6062 struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL;
6063 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
6064 uint64_t address = afb ? afb->address : 0;
6065 struct dc_cursor_position position;
6066 struct dc_cursor_attributes attributes;
6067 int ret;
6068
6069 if (!plane->state->fb && !old_plane_state->fb)
6070 return;
6071
6072 DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n",
6073 __func__,
6074 amdgpu_crtc->crtc_id,
6075 plane->state->crtc_w,
6076 plane->state->crtc_h);
6077
6078 ret = get_cursor_position(plane, crtc, &position);
6079 if (ret)
6080 return;
6081
6082 if (!position.enable) {
6083 /* turn off cursor */
6084 if (crtc_state && crtc_state->stream) {
6085 mutex_lock(&adev->dm.dc_lock);
6086 dc_stream_set_cursor_position(crtc_state->stream,
6087 &position);
6088 mutex_unlock(&adev->dm.dc_lock);
6089 }
6090 return;
6091 }
6092
6093 amdgpu_crtc->cursor_width = plane->state->crtc_w;
6094 amdgpu_crtc->cursor_height = plane->state->crtc_h;
6095
6096 memset(&attributes, 0, sizeof(attributes));
6097 attributes.address.high_part = upper_32_bits(address);
6098 attributes.address.low_part = lower_32_bits(address);
6099 attributes.width = plane->state->crtc_w;
6100 attributes.height = plane->state->crtc_h;
6101 attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA;
6102 attributes.rotation_angle = 0;
6103 attributes.attribute_flags.value = 0;
6104
6105 attributes.pitch = attributes.width;
6106
6107 if (crtc_state->stream) {
6108 mutex_lock(&adev->dm.dc_lock);
6109 if (!dc_stream_set_cursor_attributes(crtc_state->stream,
6110 &attributes))
6111 DRM_ERROR("DC failed to set cursor attributes\n");
6112
6113 if (!dc_stream_set_cursor_position(crtc_state->stream,
6114 &position))
6115 DRM_ERROR("DC failed to set cursor position\n");
6116 mutex_unlock(&adev->dm.dc_lock);
6117 }
6118 }
6119
6120 static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
6121 {
6122
6123 assert_spin_locked(&acrtc->base.dev->event_lock);
6124 WARN_ON(acrtc->event);
6125
6126 acrtc->event = acrtc->base.state->event;
6127
6128 /* Set the flip status */
6129 acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
6130
6131 /* Mark this event as consumed */
6132 acrtc->base.state->event = NULL;
6133
6134 DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
6135 acrtc->crtc_id);
6136 }
6137
6138 static void update_freesync_state_on_stream(
6139 struct amdgpu_display_manager *dm,
6140 struct dm_crtc_state *new_crtc_state,
6141 struct dc_stream_state *new_stream,
6142 struct dc_plane_state *surface,
6143 u32 flip_timestamp_in_us)
6144 {
6145 struct mod_vrr_params vrr_params;
6146 struct dc_info_packet vrr_infopacket = {0};
6147 struct amdgpu_device *adev = dm->adev;
6148 unsigned long flags;
6149
6150 if (!new_stream)
6151 return;
6152
6153 /*
6154 * TODO: Determine why min/max totals and vrefresh can be 0 here.
6155 * For now it's sufficient to just guard against these conditions.
6156 */
6157
6158 if (!new_stream->timing.h_total || !new_stream->timing.v_total)
6159 return;
6160
6161 spin_lock_irqsave(&adev->ddev->event_lock, flags);
6162 vrr_params = new_crtc_state->vrr_params;
6163
6164 if (surface) {
6165 mod_freesync_handle_preflip(
6166 dm->freesync_module,
6167 surface,
6168 new_stream,
6169 flip_timestamp_in_us,
6170 &vrr_params);
6171
6172 if (adev->family < AMDGPU_FAMILY_AI &&
6173 amdgpu_dm_vrr_active(new_crtc_state)) {
6174 mod_freesync_handle_v_update(dm->freesync_module,
6175 new_stream, &vrr_params);
6176
6177 /* Need to call this before the frame ends. */
6178 dc_stream_adjust_vmin_vmax(dm->dc,
6179 new_crtc_state->stream,
6180 &vrr_params.adjust);
6181 }
6182 }
6183
6184 mod_freesync_build_vrr_infopacket(
6185 dm->freesync_module,
6186 new_stream,
6187 &vrr_params,
6188 PACKET_TYPE_VRR,
6189 TRANSFER_FUNC_UNKNOWN,
6190 &vrr_infopacket);
6191
6192 new_crtc_state->freesync_timing_changed |=
6193 (memcmp(&new_crtc_state->vrr_params.adjust,
6194 &vrr_params.adjust,
6195 sizeof(vrr_params.adjust)) != 0);
6196
6197 new_crtc_state->freesync_vrr_info_changed |=
6198 (memcmp(&new_crtc_state->vrr_infopacket,
6199 &vrr_infopacket,
6200 sizeof(vrr_infopacket)) != 0);
6201
6202 new_crtc_state->vrr_params = vrr_params;
6203 new_crtc_state->vrr_infopacket = vrr_infopacket;
6204
6205 new_stream->adjust = new_crtc_state->vrr_params.adjust;
6206 new_stream->vrr_infopacket = vrr_infopacket;
6207
6208 if (new_crtc_state->freesync_vrr_info_changed)
6209 DRM_DEBUG_KMS("VRR packet update: crtc=%u enabled=%d state=%d",
6210 new_crtc_state->base.crtc->base.id,
6211 (int)new_crtc_state->base.vrr_enabled,
6212 (int)vrr_params.state);
6213
6214 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
6215 }
6216
6217 static void pre_update_freesync_state_on_stream(
6218 struct amdgpu_display_manager *dm,
6219 struct dm_crtc_state *new_crtc_state)
6220 {
6221 struct dc_stream_state *new_stream = new_crtc_state->stream;
6222 struct mod_vrr_params vrr_params;
6223 struct mod_freesync_config config = new_crtc_state->freesync_config;
6224 struct amdgpu_device *adev = dm->adev;
6225 unsigned long flags;
6226
6227 if (!new_stream)
6228 return;
6229
6230 /*
6231 * TODO: Determine why min/max totals and vrefresh can be 0 here.
6232 * For now it's sufficient to just guard against these conditions.
6233 */
6234 if (!new_stream->timing.h_total || !new_stream->timing.v_total)
6235 return;
6236
6237 spin_lock_irqsave(&adev->ddev->event_lock, flags);
6238 vrr_params = new_crtc_state->vrr_params;
6239
6240 if (new_crtc_state->vrr_supported &&
6241 config.min_refresh_in_uhz &&
6242 config.max_refresh_in_uhz) {
6243 config.state = new_crtc_state->base.vrr_enabled ?
6244 VRR_STATE_ACTIVE_VARIABLE :
6245 VRR_STATE_INACTIVE;
6246 } else {
6247 config.state = VRR_STATE_UNSUPPORTED;
6248 }
6249
6250 mod_freesync_build_vrr_params(dm->freesync_module,
6251 new_stream,
6252 &config, &vrr_params);
6253
6254 new_crtc_state->freesync_timing_changed |=
6255 (memcmp(&new_crtc_state->vrr_params.adjust,
6256 &vrr_params.adjust,
6257 sizeof(vrr_params.adjust)) != 0);
6258
6259 new_crtc_state->vrr_params = vrr_params;
6260 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
6261 }
6262
6263 static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
6264 struct dm_crtc_state *new_state)
6265 {
6266 bool old_vrr_active = amdgpu_dm_vrr_active(old_state);
6267 bool new_vrr_active = amdgpu_dm_vrr_active(new_state);
6268
6269 if (!old_vrr_active && new_vrr_active) {
6270 /* Transition VRR inactive -> active:
6271 * While VRR is active, we must not disable vblank irq, as a
6272 * reenable after disable would compute bogus vblank/pflip
6273 * timestamps if it likely happened inside display front-porch.
6274 *
6275 * We also need vupdate irq for the actual core vblank handling
6276 * at end of vblank.
6277 */
6278 dm_set_vupdate_irq(new_state->base.crtc, true);
6279 drm_crtc_vblank_get(new_state->base.crtc);
6280 DRM_DEBUG_DRIVER("%s: crtc=%u VRR off->on: Get vblank ref\n",
6281 __func__, new_state->base.crtc->base.id);
6282 } else if (old_vrr_active && !new_vrr_active) {
6283 /* Transition VRR active -> inactive:
6284 * Allow vblank irq disable again for fixed refresh rate.
6285 */
6286 dm_set_vupdate_irq(new_state->base.crtc, false);
6287 drm_crtc_vblank_put(new_state->base.crtc);
6288 DRM_DEBUG_DRIVER("%s: crtc=%u VRR on->off: Drop vblank ref\n",
6289 __func__, new_state->base.crtc->base.id);
6290 }
6291 }
6292
6293 static void amdgpu_dm_commit_cursors(struct drm_atomic_state *state)
6294 {
6295 struct drm_plane *plane;
6296 struct drm_plane_state *old_plane_state, *new_plane_state;
6297 int i;
6298
6299 /*
6300 * TODO: Make this per-stream so we don't issue redundant updates for
6301 * commits with multiple streams.
6302 */
6303 for_each_oldnew_plane_in_state(state, plane, old_plane_state,
6304 new_plane_state, i)
6305 if (plane->type == DRM_PLANE_TYPE_CURSOR)
6306 handle_cursor_update(plane, old_plane_state);
6307 }
6308
6309 static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
6310 struct dc_state *dc_state,
6311 struct drm_device *dev,
6312 struct amdgpu_display_manager *dm,
6313 struct drm_crtc *pcrtc,
6314 bool wait_for_vblank)
6315 {
6316 uint32_t i;
6317 uint64_t timestamp_ns;
6318 struct drm_plane *plane;
6319 struct drm_plane_state *old_plane_state, *new_plane_state;
6320 struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
6321 struct drm_crtc_state *new_pcrtc_state =
6322 drm_atomic_get_new_crtc_state(state, pcrtc);
6323 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
6324 struct dm_crtc_state *dm_old_crtc_state =
6325 to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
6326 int planes_count = 0, vpos, hpos;
6327 long r;
6328 unsigned long flags;
6329 struct amdgpu_bo *abo;
6330 uint64_t tiling_flags;
6331 uint32_t target_vblank, last_flip_vblank;
6332 bool vrr_active = amdgpu_dm_vrr_active(acrtc_state);
6333 bool pflip_present = false;
6334 bool swizzle = true;
6335 struct {
6336 struct dc_surface_update surface_updates[MAX_SURFACES];
6337 struct dc_plane_info plane_infos[MAX_SURFACES];
6338 struct dc_scaling_info scaling_infos[MAX_SURFACES];
6339 struct dc_flip_addrs flip_addrs[MAX_SURFACES];
6340 struct dc_stream_update stream_update;
6341 } *bundle;
6342
6343 bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
6344
6345 if (!bundle) {
6346 dm_error("Failed to allocate update bundle\n");
6347 goto cleanup;
6348 }
6349
6350 /*
6351 * Disable the cursor first if we're disabling all the planes.
6352 * It'll remain on the screen after the planes are re-enabled
6353 * if we don't.
6354 */
6355 if (acrtc_state->active_planes == 0)
6356 amdgpu_dm_commit_cursors(state);
6357
6358 /* update planes when needed */
6359 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
6360 struct drm_crtc *crtc = new_plane_state->crtc;
6361 struct drm_crtc_state *new_crtc_state;
6362 struct drm_framebuffer *fb = new_plane_state->fb;
6363 bool plane_needs_flip;
6364 struct dc_plane_state *dc_plane;
6365 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
6366
6367 /* Cursor plane is handled after stream updates */
6368 if (plane->type == DRM_PLANE_TYPE_CURSOR)
6369 continue;
6370
6371 if (!fb || !crtc || pcrtc != crtc)
6372 continue;
6373
6374 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
6375 if (!new_crtc_state->active)
6376 continue;
6377
6378 dc_plane = dm_new_plane_state->dc_state;
6379
6380 if (dc_plane && !dc_plane->tiling_info.gfx9.swizzle)
6381 swizzle = false;
6382
6383 bundle->surface_updates[planes_count].surface = dc_plane;
6384 if (new_pcrtc_state->color_mgmt_changed) {
6385 bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
6386 bundle->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func;
6387 }
6388
6389 fill_dc_scaling_info(new_plane_state,
6390 &bundle->scaling_infos[planes_count]);
6391
6392 bundle->surface_updates[planes_count].scaling_info =
6393 &bundle->scaling_infos[planes_count];
6394
6395 plane_needs_flip = old_plane_state->fb && new_plane_state->fb;
6396
6397 pflip_present = pflip_present || plane_needs_flip;
6398
6399 if (!plane_needs_flip) {
6400 planes_count += 1;
6401 continue;
6402 }
6403
6404 abo = gem_to_amdgpu_bo(fb->obj[0]);
6405
6406 /*
6407 * Wait for all fences on this FB. Do limited wait to avoid
6408 * deadlock during GPU reset when this fence will not signal
6409 * but we hold reservation lock for the BO.
6410 */
6411 r = dma_resv_wait_timeout_rcu(abo->tbo.base.resv, true,
6412 false,
6413 msecs_to_jiffies(5000));
6414 if (unlikely(r <= 0))
6415 DRM_ERROR("Waiting for fences timed out!");
6416
6417 /*
6418 * TODO This might fail and hence better not used, wait
6419 * explicitly on fences instead
6420 * and in general should be called for
6421 * blocking commit to as per framework helpers
6422 */
6423 r = amdgpu_bo_reserve(abo, true);
6424 if (unlikely(r != 0))
6425 DRM_ERROR("failed to reserve buffer before flip\n");
6426
6427 amdgpu_bo_get_tiling_flags(abo, &tiling_flags);
6428
6429 amdgpu_bo_unreserve(abo);
6430
6431 fill_dc_plane_info_and_addr(
6432 dm->adev, new_plane_state, tiling_flags,
6433 &bundle->plane_infos[planes_count],
6434 &bundle->flip_addrs[planes_count].address);
6435
6436 bundle->surface_updates[planes_count].plane_info =
6437 &bundle->plane_infos[planes_count];
6438
6439 /*
6440 * Only allow immediate flips for fast updates that don't
6441 * change FB pitch, DCC state, rotation or mirroing.
6442 */
6443 bundle->flip_addrs[planes_count].flip_immediate =
6444 crtc->state->async_flip &&
6445 acrtc_state->update_type == UPDATE_TYPE_FAST;
6446
6447 timestamp_ns = ktime_get_ns();
6448 bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000);
6449 bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count];
6450 bundle->surface_updates[planes_count].surface = dc_plane;
6451
6452 if (!bundle->surface_updates[planes_count].surface) {
6453 DRM_ERROR("No surface for CRTC: id=%d\n",
6454 acrtc_attach->crtc_id);
6455 continue;
6456 }
6457
6458 if (plane == pcrtc->primary)
6459 update_freesync_state_on_stream(
6460 dm,
6461 acrtc_state,
6462 acrtc_state->stream,
6463 dc_plane,
6464 bundle->flip_addrs[planes_count].flip_timestamp_in_us);
6465
6466 DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n",
6467 __func__,
6468 bundle->flip_addrs[planes_count].address.grph.addr.high_part,
6469 bundle->flip_addrs[planes_count].address.grph.addr.low_part);
6470
6471 planes_count += 1;
6472
6473 }
6474
6475 if (pflip_present) {
6476 if (!vrr_active) {
6477 /* Use old throttling in non-vrr fixed refresh rate mode
6478 * to keep flip scheduling based on target vblank counts
6479 * working in a backwards compatible way, e.g., for
6480 * clients using the GLX_OML_sync_control extension or
6481 * DRI3/Present extension with defined target_msc.
6482 */
6483 last_flip_vblank = amdgpu_get_vblank_counter_kms(dm->ddev, acrtc_attach->crtc_id);
6484 }
6485 else {
6486 /* For variable refresh rate mode only:
6487 * Get vblank of last completed flip to avoid > 1 vrr
6488 * flips per video frame by use of throttling, but allow
6489 * flip programming anywhere in the possibly large
6490 * variable vrr vblank interval for fine-grained flip
6491 * timing control and more opportunity to avoid stutter
6492 * on late submission of flips.
6493 */
6494 spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
6495 last_flip_vblank = acrtc_attach->last_flip_vblank;
6496 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
6497 }
6498
6499 target_vblank = last_flip_vblank + wait_for_vblank;
6500
6501 /*
6502 * Wait until we're out of the vertical blank period before the one
6503 * targeted by the flip
6504 */
6505 while ((acrtc_attach->enabled &&
6506 (amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id,
6507 0, &vpos, &hpos, NULL,
6508 NULL, &pcrtc->hwmode)
6509 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
6510 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
6511 (int)(target_vblank -
6512 amdgpu_get_vblank_counter_kms(dm->ddev, acrtc_attach->crtc_id)) > 0)) {
6513 usleep_range(1000, 1100);
6514 }
6515
6516 if (acrtc_attach->base.state->event) {
6517 drm_crtc_vblank_get(pcrtc);
6518
6519 spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
6520
6521 WARN_ON(acrtc_attach->pflip_status != AMDGPU_FLIP_NONE);
6522 prepare_flip_isr(acrtc_attach);
6523
6524 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
6525 }
6526
6527 if (acrtc_state->stream) {
6528 if (acrtc_state->freesync_vrr_info_changed)
6529 bundle->stream_update.vrr_infopacket =
6530 &acrtc_state->stream->vrr_infopacket;
6531 }
6532 }
6533
6534 /* Update the planes if changed or disable if we don't have any. */
6535 if ((planes_count || acrtc_state->active_planes == 0) &&
6536 acrtc_state->stream) {
6537 bundle->stream_update.stream = acrtc_state->stream;
6538 if (new_pcrtc_state->mode_changed) {
6539 bundle->stream_update.src = acrtc_state->stream->src;
6540 bundle->stream_update.dst = acrtc_state->stream->dst;
6541 }
6542
6543 if (new_pcrtc_state->color_mgmt_changed) {
6544 /*
6545 * TODO: This isn't fully correct since we've actually
6546 * already modified the stream in place.
6547 */
6548 bundle->stream_update.gamut_remap =
6549 &acrtc_state->stream->gamut_remap_matrix;
6550 bundle->stream_update.output_csc_transform =
6551 &acrtc_state->stream->csc_color_matrix;
6552 bundle->stream_update.out_transfer_func =
6553 acrtc_state->stream->out_transfer_func;
6554 }
6555
6556 acrtc_state->stream->abm_level = acrtc_state->abm_level;
6557 if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
6558 bundle->stream_update.abm_level = &acrtc_state->abm_level;
6559
6560 /*
6561 * If FreeSync state on the stream has changed then we need to
6562 * re-adjust the min/max bounds now that DC doesn't handle this
6563 * as part of commit.
6564 */
6565 if (amdgpu_dm_vrr_active(dm_old_crtc_state) !=
6566 amdgpu_dm_vrr_active(acrtc_state)) {
6567 spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
6568 dc_stream_adjust_vmin_vmax(
6569 dm->dc, acrtc_state->stream,
6570 &acrtc_state->vrr_params.adjust);
6571 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
6572 }
6573 mutex_lock(&dm->dc_lock);
6574 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
6575 acrtc_state->stream->link->psr_allow_active)
6576 amdgpu_dm_psr_disable(acrtc_state->stream);
6577
6578 dc_commit_updates_for_stream(dm->dc,
6579 bundle->surface_updates,
6580 planes_count,
6581 acrtc_state->stream,
6582 &bundle->stream_update,
6583 dc_state);
6584
6585 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
6586 acrtc_state->stream->psr_version &&
6587 !acrtc_state->stream->link->psr_feature_enabled)
6588 amdgpu_dm_link_setup_psr(acrtc_state->stream);
6589 else if ((acrtc_state->update_type == UPDATE_TYPE_FAST) &&
6590 acrtc_state->stream->link->psr_feature_enabled &&
6591 !acrtc_state->stream->link->psr_allow_active &&
6592 swizzle) {
6593 amdgpu_dm_psr_enable(acrtc_state->stream);
6594 }
6595
6596 mutex_unlock(&dm->dc_lock);
6597 }
6598
6599 /*
6600 * Update cursor state *after* programming all the planes.
6601 * This avoids redundant programming in the case where we're going
6602 * to be disabling a single plane - those pipes are being disabled.
6603 */
6604 if (acrtc_state->active_planes)
6605 amdgpu_dm_commit_cursors(state);
6606
6607 cleanup:
6608 kfree(bundle);
6609 }
6610
6611 static void amdgpu_dm_commit_audio(struct drm_device *dev,
6612 struct drm_atomic_state *state)
6613 {
6614 struct amdgpu_device *adev = dev->dev_private;
6615 struct amdgpu_dm_connector *aconnector;
6616 struct drm_connector *connector;
6617 struct drm_connector_state *old_con_state, *new_con_state;
6618 struct drm_crtc_state *new_crtc_state;
6619 struct dm_crtc_state *new_dm_crtc_state;
6620 const struct dc_stream_status *status;
6621 int i, inst;
6622
6623 /* Notify device removals. */
6624 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
6625 if (old_con_state->crtc != new_con_state->crtc) {
6626 /* CRTC changes require notification. */
6627 goto notify;
6628 }
6629
6630 if (!new_con_state->crtc)
6631 continue;
6632
6633 new_crtc_state = drm_atomic_get_new_crtc_state(
6634 state, new_con_state->crtc);
6635
6636 if (!new_crtc_state)
6637 continue;
6638
6639 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
6640 continue;
6641
6642 notify:
6643 aconnector = to_amdgpu_dm_connector(connector);
6644
6645 mutex_lock(&adev->dm.audio_lock);
6646 inst = aconnector->audio_inst;
6647 aconnector->audio_inst = -1;
6648 mutex_unlock(&adev->dm.audio_lock);
6649
6650 amdgpu_dm_audio_eld_notify(adev, inst);
6651 }
6652
6653 /* Notify audio device additions. */
6654 for_each_new_connector_in_state(state, connector, new_con_state, i) {
6655 if (!new_con_state->crtc)
6656 continue;
6657
6658 new_crtc_state = drm_atomic_get_new_crtc_state(
6659 state, new_con_state->crtc);
6660
6661 if (!new_crtc_state)
6662 continue;
6663
6664 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
6665 continue;
6666
6667 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
6668 if (!new_dm_crtc_state->stream)
6669 continue;
6670
6671 status = dc_stream_get_status(new_dm_crtc_state->stream);
6672 if (!status)
6673 continue;
6674
6675 aconnector = to_amdgpu_dm_connector(connector);
6676
6677 mutex_lock(&adev->dm.audio_lock);
6678 inst = status->audio_inst;
6679 aconnector->audio_inst = inst;
6680 mutex_unlock(&adev->dm.audio_lock);
6681
6682 amdgpu_dm_audio_eld_notify(adev, inst);
6683 }
6684 }
6685
6686 /*
6687 * Enable interrupts on CRTCs that are newly active, undergone
6688 * a modeset, or have active planes again.
6689 *
6690 * Done in two passes, based on the for_modeset flag:
6691 * Pass 1: For CRTCs going through modeset
6692 * Pass 2: For CRTCs going from 0 to n active planes
6693 *
6694 * Interrupts can only be enabled after the planes are programmed,
6695 * so this requires a two-pass approach since we don't want to
6696 * just defer the interrupts until after commit planes every time.
6697 */
6698 static void amdgpu_dm_enable_crtc_interrupts(struct drm_device *dev,
6699 struct drm_atomic_state *state,
6700 bool for_modeset)
6701 {
6702 struct amdgpu_device *adev = dev->dev_private;
6703 struct drm_crtc *crtc;
6704 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
6705 int i;
6706 #ifdef CONFIG_DEBUG_FS
6707 enum amdgpu_dm_pipe_crc_source source;
6708 #endif
6709
6710 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
6711 new_crtc_state, i) {
6712 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
6713 struct dm_crtc_state *dm_new_crtc_state =
6714 to_dm_crtc_state(new_crtc_state);
6715 struct dm_crtc_state *dm_old_crtc_state =
6716 to_dm_crtc_state(old_crtc_state);
6717 bool modeset = drm_atomic_crtc_needs_modeset(new_crtc_state);
6718 bool run_pass;
6719
6720 run_pass = (for_modeset && modeset) ||
6721 (!for_modeset && !modeset &&
6722 !dm_old_crtc_state->interrupts_enabled);
6723
6724 if (!run_pass)
6725 continue;
6726
6727 if (!dm_new_crtc_state->interrupts_enabled)
6728 continue;
6729
6730 manage_dm_interrupts(adev, acrtc, true);
6731
6732 #ifdef CONFIG_DEBUG_FS
6733 /* The stream has changed so CRC capture needs to re-enabled. */
6734 source = dm_new_crtc_state->crc_src;
6735 if (amdgpu_dm_is_valid_crc_source(source)) {
6736 amdgpu_dm_crtc_configure_crc_source(
6737 crtc, dm_new_crtc_state,
6738 dm_new_crtc_state->crc_src);
6739 }
6740 #endif
6741 }
6742 }
6743
6744 /*
6745 * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC
6746 * @crtc_state: the DRM CRTC state
6747 * @stream_state: the DC stream state.
6748 *
6749 * Copy the mirrored transient state flags from DRM, to DC. It is used to bring
6750 * a dc_stream_state's flags in sync with a drm_crtc_state's flags.
6751 */
6752 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state,
6753 struct dc_stream_state *stream_state)
6754 {
6755 stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state);
6756 }
6757
6758 static int amdgpu_dm_atomic_commit(struct drm_device *dev,
6759 struct drm_atomic_state *state,
6760 bool nonblock)
6761 {
6762 struct drm_crtc *crtc;
6763 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
6764 struct amdgpu_device *adev = dev->dev_private;
6765 int i;
6766
6767 /*
6768 * We evade vblank and pflip interrupts on CRTCs that are undergoing
6769 * a modeset, being disabled, or have no active planes.
6770 *
6771 * It's done in atomic commit rather than commit tail for now since
6772 * some of these interrupt handlers access the current CRTC state and
6773 * potentially the stream pointer itself.
6774 *
6775 * Since the atomic state is swapped within atomic commit and not within
6776 * commit tail this would leave to new state (that hasn't been committed yet)
6777 * being accesssed from within the handlers.
6778 *
6779 * TODO: Fix this so we can do this in commit tail and not have to block
6780 * in atomic check.
6781 */
6782 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
6783 struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
6784 struct dm_crtc_state *dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
6785 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
6786
6787 if (dm_old_crtc_state->interrupts_enabled &&
6788 (!dm_new_crtc_state->interrupts_enabled ||
6789 drm_atomic_crtc_needs_modeset(new_crtc_state)))
6790 manage_dm_interrupts(adev, acrtc, false);
6791 }
6792 /*
6793 * Add check here for SoC's that support hardware cursor plane, to
6794 * unset legacy_cursor_update
6795 */
6796
6797 return drm_atomic_helper_commit(dev, state, nonblock);
6798
6799 /*TODO Handle EINTR, reenable IRQ*/
6800 }
6801
6802 /**
6803 * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation.
6804 * @state: The atomic state to commit
6805 *
6806 * This will tell DC to commit the constructed DC state from atomic_check,
6807 * programming the hardware. Any failures here implies a hardware failure, since
6808 * atomic check should have filtered anything non-kosher.
6809 */
6810 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
6811 {
6812 struct drm_device *dev = state->dev;
6813 struct amdgpu_device *adev = dev->dev_private;
6814 struct amdgpu_display_manager *dm = &adev->dm;
6815 struct dm_atomic_state *dm_state;
6816 struct dc_state *dc_state = NULL, *dc_state_temp = NULL;
6817 uint32_t i, j;
6818 struct drm_crtc *crtc;
6819 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
6820 unsigned long flags;
6821 bool wait_for_vblank = true;
6822 struct drm_connector *connector;
6823 struct drm_connector_state *old_con_state, *new_con_state;
6824 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
6825 int crtc_disable_count = 0;
6826
6827 drm_atomic_helper_update_legacy_modeset_state(dev, state);
6828
6829 dm_state = dm_atomic_get_new_state(state);
6830 if (dm_state && dm_state->context) {
6831 dc_state = dm_state->context;
6832 } else {
6833 /* No state changes, retain current state. */
6834 dc_state_temp = dc_create_state(dm->dc);
6835 ASSERT(dc_state_temp);
6836 dc_state = dc_state_temp;
6837 dc_resource_state_copy_construct_current(dm->dc, dc_state);
6838 }
6839
6840 /* update changed items */
6841 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
6842 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
6843
6844 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
6845 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
6846
6847 DRM_DEBUG_DRIVER(
6848 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
6849 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
6850 "connectors_changed:%d\n",
6851 acrtc->crtc_id,
6852 new_crtc_state->enable,
6853 new_crtc_state->active,
6854 new_crtc_state->planes_changed,
6855 new_crtc_state->mode_changed,
6856 new_crtc_state->active_changed,
6857 new_crtc_state->connectors_changed);
6858
6859 /* Copy all transient state flags into dc state */
6860 if (dm_new_crtc_state->stream) {
6861 amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base,
6862 dm_new_crtc_state->stream);
6863 }
6864
6865 /* handles headless hotplug case, updating new_state and
6866 * aconnector as needed
6867 */
6868
6869 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
6870
6871 DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
6872
6873 if (!dm_new_crtc_state->stream) {
6874 /*
6875 * this could happen because of issues with
6876 * userspace notifications delivery.
6877 * In this case userspace tries to set mode on
6878 * display which is disconnected in fact.
6879 * dc_sink is NULL in this case on aconnector.
6880 * We expect reset mode will come soon.
6881 *
6882 * This can also happen when unplug is done
6883 * during resume sequence ended
6884 *
6885 * In this case, we want to pretend we still
6886 * have a sink to keep the pipe running so that
6887 * hw state is consistent with the sw state
6888 */
6889 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
6890 __func__, acrtc->base.base.id);
6891 continue;
6892 }
6893
6894 if (dm_old_crtc_state->stream)
6895 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
6896
6897 pm_runtime_get_noresume(dev->dev);
6898
6899 acrtc->enabled = true;
6900 acrtc->hw_mode = new_crtc_state->mode;
6901 crtc->hwmode = new_crtc_state->mode;
6902 } else if (modereset_required(new_crtc_state)) {
6903 DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
6904 /* i.e. reset mode */
6905 if (dm_old_crtc_state->stream) {
6906 if (dm_old_crtc_state->stream->link->psr_allow_active)
6907 amdgpu_dm_psr_disable(dm_old_crtc_state->stream);
6908
6909 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
6910 }
6911 }
6912 } /* for_each_crtc_in_state() */
6913
6914 if (dc_state) {
6915 dm_enable_per_frame_crtc_master_sync(dc_state);
6916 mutex_lock(&dm->dc_lock);
6917 WARN_ON(!dc_commit_state(dm->dc, dc_state));
6918 mutex_unlock(&dm->dc_lock);
6919 }
6920
6921 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
6922 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
6923
6924 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
6925
6926 if (dm_new_crtc_state->stream != NULL) {
6927 const struct dc_stream_status *status =
6928 dc_stream_get_status(dm_new_crtc_state->stream);
6929
6930 if (!status)
6931 status = dc_stream_get_status_from_state(dc_state,
6932 dm_new_crtc_state->stream);
6933
6934 if (!status)
6935 DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc);
6936 else
6937 acrtc->otg_inst = status->primary_otg_inst;
6938 }
6939 }
6940 #ifdef CONFIG_DRM_AMD_DC_HDCP
6941 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
6942 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
6943 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
6944 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
6945
6946 new_crtc_state = NULL;
6947
6948 if (acrtc)
6949 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
6950
6951 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
6952
6953 if (dm_new_crtc_state && dm_new_crtc_state->stream == NULL &&
6954 connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
6955 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
6956 new_con_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
6957 continue;
6958 }
6959
6960 if (is_content_protection_different(new_con_state, old_con_state, connector, adev->dm.hdcp_workqueue))
6961 hdcp_update_display(
6962 adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector,
6963 new_con_state->hdcp_content_type,
6964 new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED ? true
6965 : false);
6966 }
6967 #endif
6968
6969 /* Handle connector state changes */
6970 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
6971 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
6972 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
6973 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
6974 struct dc_surface_update dummy_updates[MAX_SURFACES];
6975 struct dc_stream_update stream_update;
6976 struct dc_info_packet hdr_packet;
6977 struct dc_stream_status *status = NULL;
6978 bool abm_changed, hdr_changed, scaling_changed;
6979
6980 memset(&dummy_updates, 0, sizeof(dummy_updates));
6981 memset(&stream_update, 0, sizeof(stream_update));
6982
6983 if (acrtc) {
6984 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
6985 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
6986 }
6987
6988 /* Skip any modesets/resets */
6989 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
6990 continue;
6991
6992 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
6993 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
6994
6995 scaling_changed = is_scaling_state_different(dm_new_con_state,
6996 dm_old_con_state);
6997
6998 abm_changed = dm_new_crtc_state->abm_level !=
6999 dm_old_crtc_state->abm_level;
7000
7001 hdr_changed =
7002 is_hdr_metadata_different(old_con_state, new_con_state);
7003
7004 if (!scaling_changed && !abm_changed && !hdr_changed)
7005 continue;
7006
7007 stream_update.stream = dm_new_crtc_state->stream;
7008 if (scaling_changed) {
7009 update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
7010 dm_new_con_state, dm_new_crtc_state->stream);
7011
7012 stream_update.src = dm_new_crtc_state->stream->src;
7013 stream_update.dst = dm_new_crtc_state->stream->dst;
7014 }
7015
7016 if (abm_changed) {
7017 dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level;
7018
7019 stream_update.abm_level = &dm_new_crtc_state->abm_level;
7020 }
7021
7022 if (hdr_changed) {
7023 fill_hdr_info_packet(new_con_state, &hdr_packet);
7024 stream_update.hdr_static_metadata = &hdr_packet;
7025 }
7026
7027 status = dc_stream_get_status(dm_new_crtc_state->stream);
7028 WARN_ON(!status);
7029 WARN_ON(!status->plane_count);
7030
7031 /*
7032 * TODO: DC refuses to perform stream updates without a dc_surface_update.
7033 * Here we create an empty update on each plane.
7034 * To fix this, DC should permit updating only stream properties.
7035 */
7036 for (j = 0; j < status->plane_count; j++)
7037 dummy_updates[j].surface = status->plane_states[0];
7038
7039
7040 mutex_lock(&dm->dc_lock);
7041 dc_commit_updates_for_stream(dm->dc,
7042 dummy_updates,
7043 status->plane_count,
7044 dm_new_crtc_state->stream,
7045 &stream_update,
7046 dc_state);
7047 mutex_unlock(&dm->dc_lock);
7048 }
7049
7050 /* Count number of newly disabled CRTCs for dropping PM refs later. */
7051 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
7052 new_crtc_state, i) {
7053 if (old_crtc_state->active && !new_crtc_state->active)
7054 crtc_disable_count++;
7055
7056 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
7057 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
7058
7059 /* Update freesync active state. */
7060 pre_update_freesync_state_on_stream(dm, dm_new_crtc_state);
7061
7062 /* Handle vrr on->off / off->on transitions */
7063 amdgpu_dm_handle_vrr_transition(dm_old_crtc_state,
7064 dm_new_crtc_state);
7065 }
7066
7067 /* Enable interrupts for CRTCs going through a modeset. */
7068 amdgpu_dm_enable_crtc_interrupts(dev, state, true);
7069
7070 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j)
7071 if (new_crtc_state->async_flip)
7072 wait_for_vblank = false;
7073
7074 /* update planes when needed per crtc*/
7075 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) {
7076 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
7077
7078 if (dm_new_crtc_state->stream)
7079 amdgpu_dm_commit_planes(state, dc_state, dev,
7080 dm, crtc, wait_for_vblank);
7081 }
7082
7083 /* Enable interrupts for CRTCs going from 0 to n active planes. */
7084 amdgpu_dm_enable_crtc_interrupts(dev, state, false);
7085
7086 /* Update audio instances for each connector. */
7087 amdgpu_dm_commit_audio(dev, state);
7088
7089 /*
7090 * send vblank event on all events not handled in flip and
7091 * mark consumed event for drm_atomic_helper_commit_hw_done
7092 */
7093 spin_lock_irqsave(&adev->ddev->event_lock, flags);
7094 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
7095
7096 if (new_crtc_state->event)
7097 drm_send_event_locked(dev, &new_crtc_state->event->base);
7098
7099 new_crtc_state->event = NULL;
7100 }
7101 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
7102
7103 /* Signal HW programming completion */
7104 drm_atomic_helper_commit_hw_done(state);
7105
7106 if (wait_for_vblank)
7107 drm_atomic_helper_wait_for_flip_done(dev, state);
7108
7109 drm_atomic_helper_cleanup_planes(dev, state);
7110
7111 /*
7112 * Finally, drop a runtime PM reference for each newly disabled CRTC,
7113 * so we can put the GPU into runtime suspend if we're not driving any
7114 * displays anymore
7115 */
7116 for (i = 0; i < crtc_disable_count; i++)
7117 pm_runtime_put_autosuspend(dev->dev);
7118 pm_runtime_mark_last_busy(dev->dev);
7119
7120 if (dc_state_temp)
7121 dc_release_state(dc_state_temp);
7122 }
7123
7124
7125 static int dm_force_atomic_commit(struct drm_connector *connector)
7126 {
7127 int ret = 0;
7128 struct drm_device *ddev = connector->dev;
7129 struct drm_atomic_state *state = drm_atomic_state_alloc(ddev);
7130 struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
7131 struct drm_plane *plane = disconnected_acrtc->base.primary;
7132 struct drm_connector_state *conn_state;
7133 struct drm_crtc_state *crtc_state;
7134 struct drm_plane_state *plane_state;
7135
7136 if (!state)
7137 return -ENOMEM;
7138
7139 state->acquire_ctx = ddev->mode_config.acquire_ctx;
7140
7141 /* Construct an atomic state to restore previous display setting */
7142
7143 /*
7144 * Attach connectors to drm_atomic_state
7145 */
7146 conn_state = drm_atomic_get_connector_state(state, connector);
7147
7148 ret = PTR_ERR_OR_ZERO(conn_state);
7149 if (ret)
7150 goto err;
7151
7152 /* Attach crtc to drm_atomic_state*/
7153 crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base);
7154
7155 ret = PTR_ERR_OR_ZERO(crtc_state);
7156 if (ret)
7157 goto err;
7158
7159 /* force a restore */
7160 crtc_state->mode_changed = true;
7161
7162 /* Attach plane to drm_atomic_state */
7163 plane_state = drm_atomic_get_plane_state(state, plane);
7164
7165 ret = PTR_ERR_OR_ZERO(plane_state);
7166 if (ret)
7167 goto err;
7168
7169
7170 /* Call commit internally with the state we just constructed */
7171 ret = drm_atomic_commit(state);
7172 if (!ret)
7173 return 0;
7174
7175 err:
7176 DRM_ERROR("Restoring old state failed with %i\n", ret);
7177 drm_atomic_state_put(state);
7178
7179 return ret;
7180 }
7181
7182 /*
7183 * This function handles all cases when set mode does not come upon hotplug.
7184 * This includes when a display is unplugged then plugged back into the
7185 * same port and when running without usermode desktop manager supprot
7186 */
7187 void dm_restore_drm_connector_state(struct drm_device *dev,
7188 struct drm_connector *connector)
7189 {
7190 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
7191 struct amdgpu_crtc *disconnected_acrtc;
7192 struct dm_crtc_state *acrtc_state;
7193
7194 if (!aconnector->dc_sink || !connector->state || !connector->encoder)
7195 return;
7196
7197 disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
7198 if (!disconnected_acrtc)
7199 return;
7200
7201 acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state);
7202 if (!acrtc_state->stream)
7203 return;
7204
7205 /*
7206 * If the previous sink is not released and different from the current,
7207 * we deduce we are in a state where we can not rely on usermode call
7208 * to turn on the display, so we do it here
7209 */
7210 if (acrtc_state->stream->sink != aconnector->dc_sink)
7211 dm_force_atomic_commit(&aconnector->base);
7212 }
7213
7214 /*
7215 * Grabs all modesetting locks to serialize against any blocking commits,
7216 * Waits for completion of all non blocking commits.
7217 */
7218 static int do_aquire_global_lock(struct drm_device *dev,
7219 struct drm_atomic_state *state)
7220 {
7221 struct drm_crtc *crtc;
7222 struct drm_crtc_commit *commit;
7223 long ret;
7224
7225 /*
7226 * Adding all modeset locks to aquire_ctx will
7227 * ensure that when the framework release it the
7228 * extra locks we are locking here will get released to
7229 */
7230 ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
7231 if (ret)
7232 return ret;
7233
7234 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
7235 spin_lock(&crtc->commit_lock);
7236 commit = list_first_entry_or_null(&crtc->commit_list,
7237 struct drm_crtc_commit, commit_entry);
7238 if (commit)
7239 drm_crtc_commit_get(commit);
7240 spin_unlock(&crtc->commit_lock);
7241
7242 if (!commit)
7243 continue;
7244
7245 /*
7246 * Make sure all pending HW programming completed and
7247 * page flips done
7248 */
7249 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ);
7250
7251 if (ret > 0)
7252 ret = wait_for_completion_interruptible_timeout(
7253 &commit->flip_done, 10*HZ);
7254
7255 if (ret == 0)
7256 DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done "
7257 "timed out\n", crtc->base.id, crtc->name);
7258
7259 drm_crtc_commit_put(commit);
7260 }
7261
7262 return ret < 0 ? ret : 0;
7263 }
7264
7265 static void get_freesync_config_for_crtc(
7266 struct dm_crtc_state *new_crtc_state,
7267 struct dm_connector_state *new_con_state)
7268 {
7269 struct mod_freesync_config config = {0};
7270 struct amdgpu_dm_connector *aconnector =
7271 to_amdgpu_dm_connector(new_con_state->base.connector);
7272 struct drm_display_mode *mode = &new_crtc_state->base.mode;
7273 int vrefresh = drm_mode_vrefresh(mode);
7274
7275 new_crtc_state->vrr_supported = new_con_state->freesync_capable &&
7276 vrefresh >= aconnector->min_vfreq &&
7277 vrefresh <= aconnector->max_vfreq;
7278
7279 if (new_crtc_state->vrr_supported) {
7280 new_crtc_state->stream->ignore_msa_timing_param = true;
7281 config.state = new_crtc_state->base.vrr_enabled ?
7282 VRR_STATE_ACTIVE_VARIABLE :
7283 VRR_STATE_INACTIVE;
7284 config.min_refresh_in_uhz =
7285 aconnector->min_vfreq * 1000000;
7286 config.max_refresh_in_uhz =
7287 aconnector->max_vfreq * 1000000;
7288 config.vsif_supported = true;
7289 config.btr = true;
7290 }
7291
7292 new_crtc_state->freesync_config = config;
7293 }
7294
7295 static void reset_freesync_config_for_crtc(
7296 struct dm_crtc_state *new_crtc_state)
7297 {
7298 new_crtc_state->vrr_supported = false;
7299
7300 memset(&new_crtc_state->vrr_params, 0,
7301 sizeof(new_crtc_state->vrr_params));
7302 memset(&new_crtc_state->vrr_infopacket, 0,
7303 sizeof(new_crtc_state->vrr_infopacket));
7304 }
7305
7306 static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
7307 struct drm_atomic_state *state,
7308 struct drm_crtc *crtc,
7309 struct drm_crtc_state *old_crtc_state,
7310 struct drm_crtc_state *new_crtc_state,
7311 bool enable,
7312 bool *lock_and_validation_needed)
7313 {
7314 struct dm_atomic_state *dm_state = NULL;
7315 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
7316 struct dc_stream_state *new_stream;
7317 int ret = 0;
7318
7319 /*
7320 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set
7321 * update changed items
7322 */
7323 struct amdgpu_crtc *acrtc = NULL;
7324 struct amdgpu_dm_connector *aconnector = NULL;
7325 struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL;
7326 struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL;
7327
7328 new_stream = NULL;
7329
7330 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
7331 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
7332 acrtc = to_amdgpu_crtc(crtc);
7333 aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
7334
7335 /* TODO This hack should go away */
7336 if (aconnector && enable) {
7337 /* Make sure fake sink is created in plug-in scenario */
7338 drm_new_conn_state = drm_atomic_get_new_connector_state(state,
7339 &aconnector->base);
7340 drm_old_conn_state = drm_atomic_get_old_connector_state(state,
7341 &aconnector->base);
7342
7343 if (IS_ERR(drm_new_conn_state)) {
7344 ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
7345 goto fail;
7346 }
7347
7348 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
7349 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state);
7350
7351 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
7352 goto skip_modeset;
7353
7354 new_stream = create_stream_for_sink(aconnector,
7355 &new_crtc_state->mode,
7356 dm_new_conn_state,
7357 dm_old_crtc_state->stream);
7358
7359 /*
7360 * we can have no stream on ACTION_SET if a display
7361 * was disconnected during S3, in this case it is not an
7362 * error, the OS will be updated after detection, and
7363 * will do the right thing on next atomic commit
7364 */
7365
7366 if (!new_stream) {
7367 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
7368 __func__, acrtc->base.base.id);
7369 ret = -ENOMEM;
7370 goto fail;
7371 }
7372
7373 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
7374
7375 ret = fill_hdr_info_packet(drm_new_conn_state,
7376 &new_stream->hdr_static_metadata);
7377 if (ret)
7378 goto fail;
7379
7380 /*
7381 * If we already removed the old stream from the context
7382 * (and set the new stream to NULL) then we can't reuse
7383 * the old stream even if the stream and scaling are unchanged.
7384 * We'll hit the BUG_ON and black screen.
7385 *
7386 * TODO: Refactor this function to allow this check to work
7387 * in all conditions.
7388 */
7389 if (dm_new_crtc_state->stream &&
7390 dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
7391 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) {
7392 new_crtc_state->mode_changed = false;
7393 DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d",
7394 new_crtc_state->mode_changed);
7395 }
7396 }
7397
7398 /* mode_changed flag may get updated above, need to check again */
7399 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
7400 goto skip_modeset;
7401
7402 DRM_DEBUG_DRIVER(
7403 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
7404 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
7405 "connectors_changed:%d\n",
7406 acrtc->crtc_id,
7407 new_crtc_state->enable,
7408 new_crtc_state->active,
7409 new_crtc_state->planes_changed,
7410 new_crtc_state->mode_changed,
7411 new_crtc_state->active_changed,
7412 new_crtc_state->connectors_changed);
7413
7414 /* Remove stream for any changed/disabled CRTC */
7415 if (!enable) {
7416
7417 if (!dm_old_crtc_state->stream)
7418 goto skip_modeset;
7419
7420 ret = dm_atomic_get_state(state, &dm_state);
7421 if (ret)
7422 goto fail;
7423
7424 DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n",
7425 crtc->base.id);
7426
7427 /* i.e. reset mode */
7428 if (dc_remove_stream_from_ctx(
7429 dm->dc,
7430 dm_state->context,
7431 dm_old_crtc_state->stream) != DC_OK) {
7432 ret = -EINVAL;
7433 goto fail;
7434 }
7435
7436 dc_stream_release(dm_old_crtc_state->stream);
7437 dm_new_crtc_state->stream = NULL;
7438
7439 reset_freesync_config_for_crtc(dm_new_crtc_state);
7440
7441 *lock_and_validation_needed = true;
7442
7443 } else {/* Add stream for any updated/enabled CRTC */
7444 /*
7445 * Quick fix to prevent NULL pointer on new_stream when
7446 * added MST connectors not found in existing crtc_state in the chained mode
7447 * TODO: need to dig out the root cause of that
7448 */
7449 if (!aconnector || (!aconnector->dc_sink && aconnector->mst_port))
7450 goto skip_modeset;
7451
7452 if (modereset_required(new_crtc_state))
7453 goto skip_modeset;
7454
7455 if (modeset_required(new_crtc_state, new_stream,
7456 dm_old_crtc_state->stream)) {
7457
7458 WARN_ON(dm_new_crtc_state->stream);
7459
7460 ret = dm_atomic_get_state(state, &dm_state);
7461 if (ret)
7462 goto fail;
7463
7464 dm_new_crtc_state->stream = new_stream;
7465
7466 dc_stream_retain(new_stream);
7467
7468 DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n",
7469 crtc->base.id);
7470
7471 if (dc_add_stream_to_ctx(
7472 dm->dc,
7473 dm_state->context,
7474 dm_new_crtc_state->stream) != DC_OK) {
7475 ret = -EINVAL;
7476 goto fail;
7477 }
7478
7479 *lock_and_validation_needed = true;
7480 }
7481 }
7482
7483 skip_modeset:
7484 /* Release extra reference */
7485 if (new_stream)
7486 dc_stream_release(new_stream);
7487
7488 /*
7489 * We want to do dc stream updates that do not require a
7490 * full modeset below.
7491 */
7492 if (!(enable && aconnector && new_crtc_state->enable &&
7493 new_crtc_state->active))
7494 return 0;
7495 /*
7496 * Given above conditions, the dc state cannot be NULL because:
7497 * 1. We're in the process of enabling CRTCs (just been added
7498 * to the dc context, or already is on the context)
7499 * 2. Has a valid connector attached, and
7500 * 3. Is currently active and enabled.
7501 * => The dc stream state currently exists.
7502 */
7503 BUG_ON(dm_new_crtc_state->stream == NULL);
7504
7505 /* Scaling or underscan settings */
7506 if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state))
7507 update_stream_scaling_settings(
7508 &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);
7509
7510 /* ABM settings */
7511 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
7512
7513 /*
7514 * Color management settings. We also update color properties
7515 * when a modeset is needed, to ensure it gets reprogrammed.
7516 */
7517 if (dm_new_crtc_state->base.color_mgmt_changed ||
7518 drm_atomic_crtc_needs_modeset(new_crtc_state)) {
7519 ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state);
7520 if (ret)
7521 goto fail;
7522 }
7523
7524 /* Update Freesync settings. */
7525 get_freesync_config_for_crtc(dm_new_crtc_state,
7526 dm_new_conn_state);
7527
7528 return ret;
7529
7530 fail:
7531 if (new_stream)
7532 dc_stream_release(new_stream);
7533 return ret;
7534 }
7535
7536 static bool should_reset_plane(struct drm_atomic_state *state,
7537 struct drm_plane *plane,
7538 struct drm_plane_state *old_plane_state,
7539 struct drm_plane_state *new_plane_state)
7540 {
7541 struct drm_plane *other;
7542 struct drm_plane_state *old_other_state, *new_other_state;
7543 struct drm_crtc_state *new_crtc_state;
7544 int i;
7545
7546 /*
7547 * TODO: Remove this hack once the checks below are sufficient
7548 * enough to determine when we need to reset all the planes on
7549 * the stream.
7550 */
7551 if (state->allow_modeset)
7552 return true;
7553
7554 /* Exit early if we know that we're adding or removing the plane. */
7555 if (old_plane_state->crtc != new_plane_state->crtc)
7556 return true;
7557
7558 /* old crtc == new_crtc == NULL, plane not in context. */
7559 if (!new_plane_state->crtc)
7560 return false;
7561
7562 new_crtc_state =
7563 drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
7564
7565 if (!new_crtc_state)
7566 return true;
7567
7568 /* CRTC Degamma changes currently require us to recreate planes. */
7569 if (new_crtc_state->color_mgmt_changed)
7570 return true;
7571
7572 if (drm_atomic_crtc_needs_modeset(new_crtc_state))
7573 return true;
7574
7575 /*
7576 * If there are any new primary or overlay planes being added or
7577 * removed then the z-order can potentially change. To ensure
7578 * correct z-order and pipe acquisition the current DC architecture
7579 * requires us to remove and recreate all existing planes.
7580 *
7581 * TODO: Come up with a more elegant solution for this.
7582 */
7583 for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) {
7584 if (other->type == DRM_PLANE_TYPE_CURSOR)
7585 continue;
7586
7587 if (old_other_state->crtc != new_plane_state->crtc &&
7588 new_other_state->crtc != new_plane_state->crtc)
7589 continue;
7590
7591 if (old_other_state->crtc != new_other_state->crtc)
7592 return true;
7593
7594 /* TODO: Remove this once we can handle fast format changes. */
7595 if (old_other_state->fb && new_other_state->fb &&
7596 old_other_state->fb->format != new_other_state->fb->format)
7597 return true;
7598 }
7599
7600 return false;
7601 }
7602
7603 static int dm_update_plane_state(struct dc *dc,
7604 struct drm_atomic_state *state,
7605 struct drm_plane *plane,
7606 struct drm_plane_state *old_plane_state,
7607 struct drm_plane_state *new_plane_state,
7608 bool enable,
7609 bool *lock_and_validation_needed)
7610 {
7611
7612 struct dm_atomic_state *dm_state = NULL;
7613 struct drm_crtc *new_plane_crtc, *old_plane_crtc;
7614 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
7615 struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
7616 struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
7617 bool needs_reset;
7618 int ret = 0;
7619
7620
7621 new_plane_crtc = new_plane_state->crtc;
7622 old_plane_crtc = old_plane_state->crtc;
7623 dm_new_plane_state = to_dm_plane_state(new_plane_state);
7624 dm_old_plane_state = to_dm_plane_state(old_plane_state);
7625
7626 /*TODO Implement atomic check for cursor plane */
7627 if (plane->type == DRM_PLANE_TYPE_CURSOR)
7628 return 0;
7629
7630 needs_reset = should_reset_plane(state, plane, old_plane_state,
7631 new_plane_state);
7632
7633 /* Remove any changed/removed planes */
7634 if (!enable) {
7635 if (!needs_reset)
7636 return 0;
7637
7638 if (!old_plane_crtc)
7639 return 0;
7640
7641 old_crtc_state = drm_atomic_get_old_crtc_state(
7642 state, old_plane_crtc);
7643 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
7644
7645 if (!dm_old_crtc_state->stream)
7646 return 0;
7647
7648 DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n",
7649 plane->base.id, old_plane_crtc->base.id);
7650
7651 ret = dm_atomic_get_state(state, &dm_state);
7652 if (ret)
7653 return ret;
7654
7655 if (!dc_remove_plane_from_context(
7656 dc,
7657 dm_old_crtc_state->stream,
7658 dm_old_plane_state->dc_state,
7659 dm_state->context)) {
7660
7661 ret = EINVAL;
7662 return ret;
7663 }
7664
7665
7666 dc_plane_state_release(dm_old_plane_state->dc_state);
7667 dm_new_plane_state->dc_state = NULL;
7668
7669 *lock_and_validation_needed = true;
7670
7671 } else { /* Add new planes */
7672 struct dc_plane_state *dc_new_plane_state;
7673
7674 if (drm_atomic_plane_disabling(plane->state, new_plane_state))
7675 return 0;
7676
7677 if (!new_plane_crtc)
7678 return 0;
7679
7680 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc);
7681 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
7682
7683 if (!dm_new_crtc_state->stream)
7684 return 0;
7685
7686 if (!needs_reset)
7687 return 0;
7688
7689 WARN_ON(dm_new_plane_state->dc_state);
7690
7691 dc_new_plane_state = dc_create_plane_state(dc);
7692 if (!dc_new_plane_state)
7693 return -ENOMEM;
7694
7695 DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n",
7696 plane->base.id, new_plane_crtc->base.id);
7697
7698 ret = fill_dc_plane_attributes(
7699 new_plane_crtc->dev->dev_private,
7700 dc_new_plane_state,
7701 new_plane_state,
7702 new_crtc_state);
7703 if (ret) {
7704 dc_plane_state_release(dc_new_plane_state);
7705 return ret;
7706 }
7707
7708 ret = dm_atomic_get_state(state, &dm_state);
7709 if (ret) {
7710 dc_plane_state_release(dc_new_plane_state);
7711 return ret;
7712 }
7713
7714 /*
7715 * Any atomic check errors that occur after this will
7716 * not need a release. The plane state will be attached
7717 * to the stream, and therefore part of the atomic
7718 * state. It'll be released when the atomic state is
7719 * cleaned.
7720 */
7721 if (!dc_add_plane_to_context(
7722 dc,
7723 dm_new_crtc_state->stream,
7724 dc_new_plane_state,
7725 dm_state->context)) {
7726
7727 dc_plane_state_release(dc_new_plane_state);
7728 return -EINVAL;
7729 }
7730
7731 dm_new_plane_state->dc_state = dc_new_plane_state;
7732
7733 /* Tell DC to do a full surface update every time there
7734 * is a plane change. Inefficient, but works for now.
7735 */
7736 dm_new_plane_state->dc_state->update_flags.bits.full_update = 1;
7737
7738 *lock_and_validation_needed = true;
7739 }
7740
7741
7742 return ret;
7743 }
7744
7745 static int
7746 dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm,
7747 struct drm_atomic_state *state,
7748 enum surface_update_type *out_type)
7749 {
7750 struct dc *dc = dm->dc;
7751 struct dm_atomic_state *dm_state = NULL, *old_dm_state = NULL;
7752 int i, j, num_plane, ret = 0;
7753 struct drm_plane_state *old_plane_state, *new_plane_state;
7754 struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state;
7755 struct drm_crtc *new_plane_crtc;
7756 struct drm_plane *plane;
7757
7758 struct drm_crtc *crtc;
7759 struct drm_crtc_state *new_crtc_state, *old_crtc_state;
7760 struct dm_crtc_state *new_dm_crtc_state, *old_dm_crtc_state;
7761 struct dc_stream_status *status = NULL;
7762
7763 struct dc_surface_update *updates;
7764 enum surface_update_type update_type = UPDATE_TYPE_FAST;
7765
7766 updates = kcalloc(MAX_SURFACES, sizeof(*updates), GFP_KERNEL);
7767
7768 if (!updates) {
7769 DRM_ERROR("Failed to allocate plane updates\n");
7770 /* Set type to FULL to avoid crashing in DC*/
7771 update_type = UPDATE_TYPE_FULL;
7772 goto cleanup;
7773 }
7774
7775 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
7776 struct dc_scaling_info scaling_info;
7777 struct dc_stream_update stream_update;
7778
7779 memset(&stream_update, 0, sizeof(stream_update));
7780
7781 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
7782 old_dm_crtc_state = to_dm_crtc_state(old_crtc_state);
7783 num_plane = 0;
7784
7785 if (new_dm_crtc_state->stream != old_dm_crtc_state->stream) {
7786 update_type = UPDATE_TYPE_FULL;
7787 goto cleanup;
7788 }
7789
7790 if (!new_dm_crtc_state->stream)
7791 continue;
7792
7793 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, j) {
7794 const struct amdgpu_framebuffer *amdgpu_fb =
7795 to_amdgpu_framebuffer(new_plane_state->fb);
7796 struct dc_plane_info plane_info;
7797 struct dc_flip_addrs flip_addr;
7798 uint64_t tiling_flags;
7799
7800 new_plane_crtc = new_plane_state->crtc;
7801 new_dm_plane_state = to_dm_plane_state(new_plane_state);
7802 old_dm_plane_state = to_dm_plane_state(old_plane_state);
7803
7804 if (plane->type == DRM_PLANE_TYPE_CURSOR)
7805 continue;
7806
7807 if (new_dm_plane_state->dc_state != old_dm_plane_state->dc_state) {
7808 update_type = UPDATE_TYPE_FULL;
7809 goto cleanup;
7810 }
7811
7812 if (crtc != new_plane_crtc)
7813 continue;
7814
7815 updates[num_plane].surface = new_dm_plane_state->dc_state;
7816
7817 if (new_crtc_state->mode_changed) {
7818 stream_update.dst = new_dm_crtc_state->stream->dst;
7819 stream_update.src = new_dm_crtc_state->stream->src;
7820 }
7821
7822 if (new_crtc_state->color_mgmt_changed) {
7823 updates[num_plane].gamma =
7824 new_dm_plane_state->dc_state->gamma_correction;
7825 updates[num_plane].in_transfer_func =
7826 new_dm_plane_state->dc_state->in_transfer_func;
7827 stream_update.gamut_remap =
7828 &new_dm_crtc_state->stream->gamut_remap_matrix;
7829 stream_update.output_csc_transform =
7830 &new_dm_crtc_state->stream->csc_color_matrix;
7831 stream_update.out_transfer_func =
7832 new_dm_crtc_state->stream->out_transfer_func;
7833 }
7834
7835 ret = fill_dc_scaling_info(new_plane_state,
7836 &scaling_info);
7837 if (ret)
7838 goto cleanup;
7839
7840 updates[num_plane].scaling_info = &scaling_info;
7841
7842 if (amdgpu_fb) {
7843 ret = get_fb_info(amdgpu_fb, &tiling_flags);
7844 if (ret)
7845 goto cleanup;
7846
7847 memset(&flip_addr, 0, sizeof(flip_addr));
7848
7849 ret = fill_dc_plane_info_and_addr(
7850 dm->adev, new_plane_state, tiling_flags,
7851 &plane_info,
7852 &flip_addr.address);
7853 if (ret)
7854 goto cleanup;
7855
7856 updates[num_plane].plane_info = &plane_info;
7857 updates[num_plane].flip_addr = &flip_addr;
7858 }
7859
7860 num_plane++;
7861 }
7862
7863 if (num_plane == 0)
7864 continue;
7865
7866 ret = dm_atomic_get_state(state, &dm_state);
7867 if (ret)
7868 goto cleanup;
7869
7870 old_dm_state = dm_atomic_get_old_state(state);
7871 if (!old_dm_state) {
7872 ret = -EINVAL;
7873 goto cleanup;
7874 }
7875
7876 status = dc_stream_get_status_from_state(old_dm_state->context,
7877 new_dm_crtc_state->stream);
7878 stream_update.stream = new_dm_crtc_state->stream;
7879 /*
7880 * TODO: DC modifies the surface during this call so we need
7881 * to lock here - find a way to do this without locking.
7882 */
7883 mutex_lock(&dm->dc_lock);
7884 update_type = dc_check_update_surfaces_for_stream(dc, updates, num_plane,
7885 &stream_update, status);
7886 mutex_unlock(&dm->dc_lock);
7887
7888 if (update_type > UPDATE_TYPE_MED) {
7889 update_type = UPDATE_TYPE_FULL;
7890 goto cleanup;
7891 }
7892 }
7893
7894 cleanup:
7895 kfree(updates);
7896
7897 *out_type = update_type;
7898 return ret;
7899 }
7900
7901 static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
7902 {
7903 struct drm_connector *connector;
7904 struct drm_connector_state *conn_state;
7905 struct amdgpu_dm_connector *aconnector = NULL;
7906 int i;
7907 for_each_new_connector_in_state(state, connector, conn_state, i) {
7908 if (conn_state->crtc != crtc)
7909 continue;
7910
7911 aconnector = to_amdgpu_dm_connector(connector);
7912 if (!aconnector->port || !aconnector->mst_port)
7913 aconnector = NULL;
7914 else
7915 break;
7916 }
7917
7918 if (!aconnector)
7919 return 0;
7920
7921 return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_port->mst_mgr);
7922 }
7923
7924 /**
7925 * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
7926 * @dev: The DRM device
7927 * @state: The atomic state to commit
7928 *
7929 * Validate that the given atomic state is programmable by DC into hardware.
7930 * This involves constructing a &struct dc_state reflecting the new hardware
7931 * state we wish to commit, then querying DC to see if it is programmable. It's
7932 * important not to modify the existing DC state. Otherwise, atomic_check
7933 * may unexpectedly commit hardware changes.
7934 *
7935 * When validating the DC state, it's important that the right locks are
7936 * acquired. For full updates case which removes/adds/updates streams on one
7937 * CRTC while flipping on another CRTC, acquiring global lock will guarantee
7938 * that any such full update commit will wait for completion of any outstanding
7939 * flip using DRMs synchronization events. See
7940 * dm_determine_update_type_for_commit()
7941 *
7942 * Note that DM adds the affected connectors for all CRTCs in state, when that
7943 * might not seem necessary. This is because DC stream creation requires the
7944 * DC sink, which is tied to the DRM connector state. Cleaning this up should
7945 * be possible but non-trivial - a possible TODO item.
7946 *
7947 * Return: -Error code if validation failed.
7948 */
7949 static int amdgpu_dm_atomic_check(struct drm_device *dev,
7950 struct drm_atomic_state *state)
7951 {
7952 struct amdgpu_device *adev = dev->dev_private;
7953 struct dm_atomic_state *dm_state = NULL;
7954 struct dc *dc = adev->dm.dc;
7955 struct drm_connector *connector;
7956 struct drm_connector_state *old_con_state, *new_con_state;
7957 struct drm_crtc *crtc;
7958 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
7959 struct drm_plane *plane;
7960 struct drm_plane_state *old_plane_state, *new_plane_state;
7961 enum surface_update_type update_type = UPDATE_TYPE_FAST;
7962 enum surface_update_type overall_update_type = UPDATE_TYPE_FAST;
7963
7964 int ret, i;
7965
7966 /*
7967 * This bool will be set for true for any modeset/reset
7968 * or plane update which implies non fast surface update.
7969 */
7970 bool lock_and_validation_needed = false;
7971
7972 ret = drm_atomic_helper_check_modeset(dev, state);
7973 if (ret)
7974 goto fail;
7975
7976 if (adev->asic_type >= CHIP_NAVI10) {
7977 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
7978 if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
7979 ret = add_affected_mst_dsc_crtcs(state, crtc);
7980 if (ret)
7981 goto fail;
7982 }
7983 }
7984 }
7985
7986 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
7987 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
7988 !new_crtc_state->color_mgmt_changed &&
7989 old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled)
7990 continue;
7991
7992 if (!new_crtc_state->enable)
7993 continue;
7994
7995 ret = drm_atomic_add_affected_connectors(state, crtc);
7996 if (ret)
7997 return ret;
7998
7999 ret = drm_atomic_add_affected_planes(state, crtc);
8000 if (ret)
8001 goto fail;
8002 }
8003
8004 /*
8005 * Add all primary and overlay planes on the CRTC to the state
8006 * whenever a plane is enabled to maintain correct z-ordering
8007 * and to enable fast surface updates.
8008 */
8009 drm_for_each_crtc(crtc, dev) {
8010 bool modified = false;
8011
8012 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
8013 if (plane->type == DRM_PLANE_TYPE_CURSOR)
8014 continue;
8015
8016 if (new_plane_state->crtc == crtc ||
8017 old_plane_state->crtc == crtc) {
8018 modified = true;
8019 break;
8020 }
8021 }
8022
8023 if (!modified)
8024 continue;
8025
8026 drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
8027 if (plane->type == DRM_PLANE_TYPE_CURSOR)
8028 continue;
8029
8030 new_plane_state =
8031 drm_atomic_get_plane_state(state, plane);
8032
8033 if (IS_ERR(new_plane_state)) {
8034 ret = PTR_ERR(new_plane_state);
8035 goto fail;
8036 }
8037 }
8038 }
8039
8040 /* Remove exiting planes if they are modified */
8041 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
8042 ret = dm_update_plane_state(dc, state, plane,
8043 old_plane_state,
8044 new_plane_state,
8045 false,
8046 &lock_and_validation_needed);
8047 if (ret)
8048 goto fail;
8049 }
8050
8051 /* Disable all crtcs which require disable */
8052 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8053 ret = dm_update_crtc_state(&adev->dm, state, crtc,
8054 old_crtc_state,
8055 new_crtc_state,
8056 false,
8057 &lock_and_validation_needed);
8058 if (ret)
8059 goto fail;
8060 }
8061
8062 /* Enable all crtcs which require enable */
8063 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8064 ret = dm_update_crtc_state(&adev->dm, state, crtc,
8065 old_crtc_state,
8066 new_crtc_state,
8067 true,
8068 &lock_and_validation_needed);
8069 if (ret)
8070 goto fail;
8071 }
8072
8073 /* Add new/modified planes */
8074 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
8075 ret = dm_update_plane_state(dc, state, plane,
8076 old_plane_state,
8077 new_plane_state,
8078 true,
8079 &lock_and_validation_needed);
8080 if (ret)
8081 goto fail;
8082 }
8083
8084 /* Run this here since we want to validate the streams we created */
8085 ret = drm_atomic_helper_check_planes(dev, state);
8086 if (ret)
8087 goto fail;
8088
8089 if (state->legacy_cursor_update) {
8090 /*
8091 * This is a fast cursor update coming from the plane update
8092 * helper, check if it can be done asynchronously for better
8093 * performance.
8094 */
8095 state->async_update =
8096 !drm_atomic_helper_async_check(dev, state);
8097
8098 /*
8099 * Skip the remaining global validation if this is an async
8100 * update. Cursor updates can be done without affecting
8101 * state or bandwidth calcs and this avoids the performance
8102 * penalty of locking the private state object and
8103 * allocating a new dc_state.
8104 */
8105 if (state->async_update)
8106 return 0;
8107 }
8108
8109 /* Check scaling and underscan changes*/
8110 /* TODO Removed scaling changes validation due to inability to commit
8111 * new stream into context w\o causing full reset. Need to
8112 * decide how to handle.
8113 */
8114 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
8115 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
8116 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
8117 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
8118
8119 /* Skip any modesets/resets */
8120 if (!acrtc || drm_atomic_crtc_needs_modeset(
8121 drm_atomic_get_new_crtc_state(state, &acrtc->base)))
8122 continue;
8123
8124 /* Skip any thing not scale or underscan changes */
8125 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
8126 continue;
8127
8128 overall_update_type = UPDATE_TYPE_FULL;
8129 lock_and_validation_needed = true;
8130 }
8131
8132 ret = dm_determine_update_type_for_commit(&adev->dm, state, &update_type);
8133 if (ret)
8134 goto fail;
8135
8136 if (overall_update_type < update_type)
8137 overall_update_type = update_type;
8138
8139 /*
8140 * lock_and_validation_needed was an old way to determine if we need to set
8141 * the global lock. Leaving it in to check if we broke any corner cases
8142 * lock_and_validation_needed true = UPDATE_TYPE_FULL or UPDATE_TYPE_MED
8143 * lock_and_validation_needed false = UPDATE_TYPE_FAST
8144 */
8145 if (lock_and_validation_needed && overall_update_type <= UPDATE_TYPE_FAST)
8146 WARN(1, "Global lock should be Set, overall_update_type should be UPDATE_TYPE_MED or UPDATE_TYPE_FULL");
8147
8148 if (overall_update_type > UPDATE_TYPE_FAST) {
8149 ret = dm_atomic_get_state(state, &dm_state);
8150 if (ret)
8151 goto fail;
8152
8153 ret = do_aquire_global_lock(dev, state);
8154 if (ret)
8155 goto fail;
8156
8157 #if defined(CONFIG_DRM_AMD_DC_DCN)
8158 if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
8159 goto fail;
8160
8161 ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context);
8162 if (ret)
8163 goto fail;
8164 #endif
8165
8166 if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) {
8167 ret = -EINVAL;
8168 goto fail;
8169 }
8170 } else {
8171 /*
8172 * The commit is a fast update. Fast updates shouldn't change
8173 * the DC context, affect global validation, and can have their
8174 * commit work done in parallel with other commits not touching
8175 * the same resource. If we have a new DC context as part of
8176 * the DM atomic state from validation we need to free it and
8177 * retain the existing one instead.
8178 */
8179 struct dm_atomic_state *new_dm_state, *old_dm_state;
8180
8181 new_dm_state = dm_atomic_get_new_state(state);
8182 old_dm_state = dm_atomic_get_old_state(state);
8183
8184 if (new_dm_state && old_dm_state) {
8185 if (new_dm_state->context)
8186 dc_release_state(new_dm_state->context);
8187
8188 new_dm_state->context = old_dm_state->context;
8189
8190 if (old_dm_state->context)
8191 dc_retain_state(old_dm_state->context);
8192 }
8193 }
8194 /* Perform validation of MST topology in the state*/
8195 ret = drm_dp_mst_atomic_check(state);
8196 if (ret)
8197 goto fail;
8198
8199 /* Store the overall update type for use later in atomic check. */
8200 for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
8201 struct dm_crtc_state *dm_new_crtc_state =
8202 to_dm_crtc_state(new_crtc_state);
8203
8204 dm_new_crtc_state->update_type = (int)overall_update_type;
8205 }
8206
8207 /* Must be success */
8208 WARN_ON(ret);
8209 return ret;
8210
8211 fail:
8212 if (ret == -EDEADLK)
8213 DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n");
8214 else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
8215 DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
8216 else
8217 DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
8218
8219 return ret;
8220 }
8221
8222 static bool is_dp_capable_without_timing_msa(struct dc *dc,
8223 struct amdgpu_dm_connector *amdgpu_dm_connector)
8224 {
8225 uint8_t dpcd_data;
8226 bool capable = false;
8227
8228 if (amdgpu_dm_connector->dc_link &&
8229 dm_helpers_dp_read_dpcd(
8230 NULL,
8231 amdgpu_dm_connector->dc_link,
8232 DP_DOWN_STREAM_PORT_COUNT,
8233 &dpcd_data,
8234 sizeof(dpcd_data))) {
8235 capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false;
8236 }
8237
8238 return capable;
8239 }
8240 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
8241 struct edid *edid)
8242 {
8243 int i;
8244 bool edid_check_required;
8245 struct detailed_timing *timing;
8246 struct detailed_non_pixel *data;
8247 struct detailed_data_monitor_range *range;
8248 struct amdgpu_dm_connector *amdgpu_dm_connector =
8249 to_amdgpu_dm_connector(connector);
8250 struct dm_connector_state *dm_con_state = NULL;
8251
8252 struct drm_device *dev = connector->dev;
8253 struct amdgpu_device *adev = dev->dev_private;
8254 bool freesync_capable = false;
8255
8256 if (!connector->state) {
8257 DRM_ERROR("%s - Connector has no state", __func__);
8258 goto update;
8259 }
8260
8261 if (!edid) {
8262 dm_con_state = to_dm_connector_state(connector->state);
8263
8264 amdgpu_dm_connector->min_vfreq = 0;
8265 amdgpu_dm_connector->max_vfreq = 0;
8266 amdgpu_dm_connector->pixel_clock_mhz = 0;
8267
8268 goto update;
8269 }
8270
8271 dm_con_state = to_dm_connector_state(connector->state);
8272
8273 edid_check_required = false;
8274 if (!amdgpu_dm_connector->dc_sink) {
8275 DRM_ERROR("dc_sink NULL, could not add free_sync module.\n");
8276 goto update;
8277 }
8278 if (!adev->dm.freesync_module)
8279 goto update;
8280 /*
8281 * if edid non zero restrict freesync only for dp and edp
8282 */
8283 if (edid) {
8284 if (amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT
8285 || amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_EDP) {
8286 edid_check_required = is_dp_capable_without_timing_msa(
8287 adev->dm.dc,
8288 amdgpu_dm_connector);
8289 }
8290 }
8291 if (edid_check_required == true && (edid->version > 1 ||
8292 (edid->version == 1 && edid->revision > 1))) {
8293 for (i = 0; i < 4; i++) {
8294
8295 timing = &edid->detailed_timings[i];
8296 data = &timing->data.other_data;
8297 range = &data->data.range;
8298 /*
8299 * Check if monitor has continuous frequency mode
8300 */
8301 if (data->type != EDID_DETAIL_MONITOR_RANGE)
8302 continue;
8303 /*
8304 * Check for flag range limits only. If flag == 1 then
8305 * no additional timing information provided.
8306 * Default GTF, GTF Secondary curve and CVT are not
8307 * supported
8308 */
8309 if (range->flags != 1)
8310 continue;
8311
8312 amdgpu_dm_connector->min_vfreq = range->min_vfreq;
8313 amdgpu_dm_connector->max_vfreq = range->max_vfreq;
8314 amdgpu_dm_connector->pixel_clock_mhz =
8315 range->pixel_clock_mhz * 10;
8316 break;
8317 }
8318
8319 if (amdgpu_dm_connector->max_vfreq -
8320 amdgpu_dm_connector->min_vfreq > 10) {
8321
8322 freesync_capable = true;
8323 }
8324 }
8325
8326 update:
8327 if (dm_con_state)
8328 dm_con_state->freesync_capable = freesync_capable;
8329
8330 if (connector->vrr_capable_property)
8331 drm_connector_set_vrr_capable_property(connector,
8332 freesync_capable);
8333 }
8334
8335 static void amdgpu_dm_set_psr_caps(struct dc_link *link)
8336 {
8337 uint8_t dpcd_data[EDP_PSR_RECEIVER_CAP_SIZE];
8338
8339 if (!(link->connector_signal & SIGNAL_TYPE_EDP))
8340 return;
8341 if (link->type == dc_connection_none)
8342 return;
8343 if (dm_helpers_dp_read_dpcd(NULL, link, DP_PSR_SUPPORT,
8344 dpcd_data, sizeof(dpcd_data))) {
8345 link->psr_feature_enabled = dpcd_data[0] ? true:false;
8346 DRM_INFO("PSR support:%d\n", link->psr_feature_enabled);
8347 }
8348 }
8349
8350 /*
8351 * amdgpu_dm_link_setup_psr() - configure psr link
8352 * @stream: stream state
8353 *
8354 * Return: true if success
8355 */
8356 static bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream)
8357 {
8358 struct dc_link *link = NULL;
8359 struct psr_config psr_config = {0};
8360 struct psr_context psr_context = {0};
8361 struct dc *dc = NULL;
8362 bool ret = false;
8363
8364 if (stream == NULL)
8365 return false;
8366
8367 link = stream->link;
8368 dc = link->ctx->dc;
8369
8370 psr_config.psr_version = dc->res_pool->dmcu->dmcu_version.psr_version;
8371
8372 if (psr_config.psr_version > 0) {
8373 psr_config.psr_exit_link_training_required = 0x1;
8374 psr_config.psr_frame_capture_indication_req = 0;
8375 psr_config.psr_rfb_setup_time = 0x37;
8376 psr_config.psr_sdp_transmit_line_num_deadline = 0x20;
8377 psr_config.allow_smu_optimizations = 0x0;
8378
8379 ret = dc_link_setup_psr(link, stream, &psr_config, &psr_context);
8380
8381 }
8382 DRM_DEBUG_DRIVER("PSR link: %d\n", link->psr_feature_enabled);
8383
8384 return ret;
8385 }
8386
8387 /*
8388 * amdgpu_dm_psr_enable() - enable psr f/w
8389 * @stream: stream state
8390 *
8391 * Return: true if success
8392 */
8393 bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
8394 {
8395 struct dc_link *link = stream->link;
8396 unsigned int vsync_rate_hz = 0;
8397 struct dc_static_screen_params params = {0};
8398 /* Calculate number of static frames before generating interrupt to
8399 * enter PSR.
8400 */
8401 unsigned int frame_time_microsec = 1000000 / vsync_rate_hz;
8402 // Init fail safe of 2 frames static
8403 unsigned int num_frames_static = 2;
8404
8405 DRM_DEBUG_DRIVER("Enabling psr...\n");
8406
8407 vsync_rate_hz = div64_u64(div64_u64((
8408 stream->timing.pix_clk_100hz * 100),
8409 stream->timing.v_total),
8410 stream->timing.h_total);
8411
8412 /* Round up
8413 * Calculate number of frames such that at least 30 ms of time has
8414 * passed.
8415 */
8416 if (vsync_rate_hz != 0)
8417 num_frames_static = (30000 / frame_time_microsec) + 1;
8418
8419 params.triggers.cursor_update = true;
8420 params.triggers.overlay_update = true;
8421 params.triggers.surface_update = true;
8422 params.num_frames = num_frames_static;
8423
8424 dc_stream_set_static_screen_params(link->ctx->dc,
8425 &stream, 1,
8426 &params);
8427
8428 return dc_link_set_psr_allow_active(link, true, false);
8429 }
8430
8431 /*
8432 * amdgpu_dm_psr_disable() - disable psr f/w
8433 * @stream: stream state
8434 *
8435 * Return: true if success
8436 */
8437 static bool amdgpu_dm_psr_disable(struct dc_stream_state *stream)
8438 {
8439
8440 DRM_DEBUG_DRIVER("Disabling psr...\n");
8441
8442 return dc_link_set_psr_allow_active(stream->link, false, true);
8443 }
Linux with added FPC-III support