2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
27 #include <drm/amdgpu_drm.h>
29 #include "amdgpu_i2c.h"
31 #include "amdgpu_connectors.h"
32 #include <asm/div64.h>
34 #include <linux/pm_runtime.h>
35 #include <drm/drm_crtc_helper.h>
36 #include <drm/drm_edid.h>
38 static void amdgpu_flip_wait_fence(struct amdgpu_device
*adev
,
41 struct amdgpu_fence
*fence
;
47 fence
= to_amdgpu_fence(*f
);
49 r
= fence_wait(&fence
->base
, false);
51 up_read(&adev
->exclusive_lock
);
52 r
= amdgpu_gpu_reset(adev
);
53 down_read(&adev
->exclusive_lock
);
56 r
= fence_wait(*f
, false);
59 DRM_ERROR("failed to wait on page flip fence (%ld)!\n", r
);
61 /* We continue with the page flip even if we failed to wait on
62 * the fence, otherwise the DRM core and userspace will be
63 * confused about which BO the CRTC is scanning out
69 static void amdgpu_flip_work_func(struct work_struct
*__work
)
71 struct amdgpu_flip_work
*work
=
72 container_of(__work
, struct amdgpu_flip_work
, flip_work
);
73 struct amdgpu_device
*adev
= work
->adev
;
74 struct amdgpu_crtc
*amdgpuCrtc
= adev
->mode_info
.crtcs
[work
->crtc_id
];
76 struct drm_crtc
*crtc
= &amdgpuCrtc
->base
;
80 down_read(&adev
->exclusive_lock
);
81 amdgpu_flip_wait_fence(adev
, &work
->excl
);
82 for (i
= 0; i
< work
->shared_count
; ++i
)
83 amdgpu_flip_wait_fence(adev
, &work
->shared
[i
]);
85 /* We borrow the event spin lock for protecting flip_status */
86 spin_lock_irqsave(&crtc
->dev
->event_lock
, flags
);
88 /* do the flip (mmio) */
89 adev
->mode_info
.funcs
->page_flip(adev
, work
->crtc_id
, work
->base
);
90 /* set the flip status */
91 amdgpuCrtc
->pflip_status
= AMDGPU_FLIP_SUBMITTED
;
93 spin_unlock_irqrestore(&crtc
->dev
->event_lock
, flags
);
94 up_read(&adev
->exclusive_lock
);
98 * Handle unpin events outside the interrupt handler proper.
100 static void amdgpu_unpin_work_func(struct work_struct
*__work
)
102 struct amdgpu_flip_work
*work
=
103 container_of(__work
, struct amdgpu_flip_work
, unpin_work
);
106 /* unpin of the old buffer */
107 r
= amdgpu_bo_reserve(work
->old_rbo
, false);
108 if (likely(r
== 0)) {
109 r
= amdgpu_bo_unpin(work
->old_rbo
);
110 if (unlikely(r
!= 0)) {
111 DRM_ERROR("failed to unpin buffer after flip\n");
113 amdgpu_bo_unreserve(work
->old_rbo
);
115 DRM_ERROR("failed to reserve buffer after flip\n");
117 drm_gem_object_unreference_unlocked(&work
->old_rbo
->gem_base
);
122 int amdgpu_crtc_page_flip(struct drm_crtc
*crtc
,
123 struct drm_framebuffer
*fb
,
124 struct drm_pending_vblank_event
*event
,
125 uint32_t page_flip_flags
)
127 struct drm_device
*dev
= crtc
->dev
;
128 struct amdgpu_device
*adev
= dev
->dev_private
;
129 struct amdgpu_crtc
*amdgpu_crtc
= to_amdgpu_crtc(crtc
);
130 struct amdgpu_framebuffer
*old_amdgpu_fb
;
131 struct amdgpu_framebuffer
*new_amdgpu_fb
;
132 struct drm_gem_object
*obj
;
133 struct amdgpu_flip_work
*work
;
134 struct amdgpu_bo
*new_rbo
;
140 work
= kzalloc(sizeof *work
, GFP_KERNEL
);
144 INIT_WORK(&work
->flip_work
, amdgpu_flip_work_func
);
145 INIT_WORK(&work
->unpin_work
, amdgpu_unpin_work_func
);
149 work
->crtc_id
= amdgpu_crtc
->crtc_id
;
151 /* schedule unpin of the old buffer */
152 old_amdgpu_fb
= to_amdgpu_framebuffer(crtc
->primary
->fb
);
153 obj
= old_amdgpu_fb
->obj
;
155 /* take a reference to the old object */
156 drm_gem_object_reference(obj
);
157 work
->old_rbo
= gem_to_amdgpu_bo(obj
);
159 new_amdgpu_fb
= to_amdgpu_framebuffer(fb
);
160 obj
= new_amdgpu_fb
->obj
;
161 new_rbo
= gem_to_amdgpu_bo(obj
);
163 /* pin the new buffer */
164 r
= amdgpu_bo_reserve(new_rbo
, false);
165 if (unlikely(r
!= 0)) {
166 DRM_ERROR("failed to reserve new rbo buffer before flip\n");
170 r
= amdgpu_bo_pin_restricted(new_rbo
, AMDGPU_GEM_DOMAIN_VRAM
, 0, 0, &base
);
171 if (unlikely(r
!= 0)) {
172 amdgpu_bo_unreserve(new_rbo
);
174 DRM_ERROR("failed to pin new rbo buffer before flip\n");
178 r
= reservation_object_get_fences_rcu(new_rbo
->tbo
.resv
, &work
->excl
,
181 if (unlikely(r
!= 0)) {
182 amdgpu_bo_unreserve(new_rbo
);
183 DRM_ERROR("failed to get fences for buffer\n");
187 fence_get(work
->excl
);
188 for (i
= 0; i
< work
->shared_count
; ++i
)
189 fence_get(work
->shared
[i
]);
191 amdgpu_bo_get_tiling_flags(new_rbo
, &tiling_flags
);
192 amdgpu_bo_unreserve(new_rbo
);
196 r
= drm_vblank_get(crtc
->dev
, amdgpu_crtc
->crtc_id
);
198 DRM_ERROR("failed to get vblank before flip\n");
202 /* we borrow the event spin lock for protecting flip_wrok */
203 spin_lock_irqsave(&crtc
->dev
->event_lock
, flags
);
204 if (amdgpu_crtc
->pflip_status
!= AMDGPU_FLIP_NONE
) {
205 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
206 spin_unlock_irqrestore(&crtc
->dev
->event_lock
, flags
);
211 amdgpu_crtc
->pflip_status
= AMDGPU_FLIP_PENDING
;
212 amdgpu_crtc
->pflip_works
= work
;
215 crtc
->primary
->fb
= fb
;
216 spin_unlock_irqrestore(&crtc
->dev
->event_lock
, flags
);
217 queue_work(amdgpu_crtc
->pflip_queue
, &work
->flip_work
);
221 drm_vblank_put(crtc
->dev
, amdgpu_crtc
->crtc_id
);
224 if (unlikely(amdgpu_bo_reserve(new_rbo
, false) != 0)) {
225 DRM_ERROR("failed to reserve new rbo in error path\n");
228 if (unlikely(amdgpu_bo_unpin(new_rbo
) != 0)) {
229 DRM_ERROR("failed to unpin new rbo in error path\n");
231 amdgpu_bo_unreserve(new_rbo
);
234 drm_gem_object_unreference_unlocked(&work
->old_rbo
->gem_base
);
235 fence_put(work
->excl
);
236 for (i
= 0; i
< work
->shared_count
; ++i
)
237 fence_put(work
->shared
[i
]);
244 int amdgpu_crtc_set_config(struct drm_mode_set
*set
)
246 struct drm_device
*dev
;
247 struct amdgpu_device
*adev
;
248 struct drm_crtc
*crtc
;
252 if (!set
|| !set
->crtc
)
255 dev
= set
->crtc
->dev
;
257 ret
= pm_runtime_get_sync(dev
->dev
);
261 ret
= drm_crtc_helper_set_config(set
);
263 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
267 pm_runtime_mark_last_busy(dev
->dev
);
269 adev
= dev
->dev_private
;
270 /* if we have active crtcs and we don't have a power ref,
271 take the current one */
272 if (active
&& !adev
->have_disp_power_ref
) {
273 adev
->have_disp_power_ref
= true;
276 /* if we have no active crtcs, then drop the power ref
278 if (!active
&& adev
->have_disp_power_ref
) {
279 pm_runtime_put_autosuspend(dev
->dev
);
280 adev
->have_disp_power_ref
= false;
283 /* drop the power reference we got coming in here */
284 pm_runtime_put_autosuspend(dev
->dev
);
288 static const char *encoder_names
[38] = {
308 "INTERNAL_KLDSCP_TMDS1",
309 "INTERNAL_KLDSCP_DVO1",
310 "INTERNAL_KLDSCP_DAC1",
311 "INTERNAL_KLDSCP_DAC2",
320 "INTERNAL_KLDSCP_LVTMA",
329 static const char *hpd_names
[6] = {
338 void amdgpu_print_display_setup(struct drm_device
*dev
)
340 struct drm_connector
*connector
;
341 struct amdgpu_connector
*amdgpu_connector
;
342 struct drm_encoder
*encoder
;
343 struct amdgpu_encoder
*amdgpu_encoder
;
347 DRM_INFO("AMDGPU Display Connectors\n");
348 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
349 amdgpu_connector
= to_amdgpu_connector(connector
);
350 DRM_INFO("Connector %d:\n", i
);
351 DRM_INFO(" %s\n", connector
->name
);
352 if (amdgpu_connector
->hpd
.hpd
!= AMDGPU_HPD_NONE
)
353 DRM_INFO(" %s\n", hpd_names
[amdgpu_connector
->hpd
.hpd
]);
354 if (amdgpu_connector
->ddc_bus
) {
355 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
356 amdgpu_connector
->ddc_bus
->rec
.mask_clk_reg
,
357 amdgpu_connector
->ddc_bus
->rec
.mask_data_reg
,
358 amdgpu_connector
->ddc_bus
->rec
.a_clk_reg
,
359 amdgpu_connector
->ddc_bus
->rec
.a_data_reg
,
360 amdgpu_connector
->ddc_bus
->rec
.en_clk_reg
,
361 amdgpu_connector
->ddc_bus
->rec
.en_data_reg
,
362 amdgpu_connector
->ddc_bus
->rec
.y_clk_reg
,
363 amdgpu_connector
->ddc_bus
->rec
.y_data_reg
);
364 if (amdgpu_connector
->router
.ddc_valid
)
365 DRM_INFO(" DDC Router 0x%x/0x%x\n",
366 amdgpu_connector
->router
.ddc_mux_control_pin
,
367 amdgpu_connector
->router
.ddc_mux_state
);
368 if (amdgpu_connector
->router
.cd_valid
)
369 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n",
370 amdgpu_connector
->router
.cd_mux_control_pin
,
371 amdgpu_connector
->router
.cd_mux_state
);
373 if (connector
->connector_type
== DRM_MODE_CONNECTOR_VGA
||
374 connector
->connector_type
== DRM_MODE_CONNECTOR_DVII
||
375 connector
->connector_type
== DRM_MODE_CONNECTOR_DVID
||
376 connector
->connector_type
== DRM_MODE_CONNECTOR_DVIA
||
377 connector
->connector_type
== DRM_MODE_CONNECTOR_HDMIA
||
378 connector
->connector_type
== DRM_MODE_CONNECTOR_HDMIB
)
379 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
381 DRM_INFO(" Encoders:\n");
382 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
383 amdgpu_encoder
= to_amdgpu_encoder(encoder
);
384 devices
= amdgpu_encoder
->devices
& amdgpu_connector
->devices
;
386 if (devices
& ATOM_DEVICE_CRT1_SUPPORT
)
387 DRM_INFO(" CRT1: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
388 if (devices
& ATOM_DEVICE_CRT2_SUPPORT
)
389 DRM_INFO(" CRT2: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
390 if (devices
& ATOM_DEVICE_LCD1_SUPPORT
)
391 DRM_INFO(" LCD1: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
392 if (devices
& ATOM_DEVICE_DFP1_SUPPORT
)
393 DRM_INFO(" DFP1: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
394 if (devices
& ATOM_DEVICE_DFP2_SUPPORT
)
395 DRM_INFO(" DFP2: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
396 if (devices
& ATOM_DEVICE_DFP3_SUPPORT
)
397 DRM_INFO(" DFP3: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
398 if (devices
& ATOM_DEVICE_DFP4_SUPPORT
)
399 DRM_INFO(" DFP4: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
400 if (devices
& ATOM_DEVICE_DFP5_SUPPORT
)
401 DRM_INFO(" DFP5: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
402 if (devices
& ATOM_DEVICE_DFP6_SUPPORT
)
403 DRM_INFO(" DFP6: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
404 if (devices
& ATOM_DEVICE_TV1_SUPPORT
)
405 DRM_INFO(" TV1: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
406 if (devices
& ATOM_DEVICE_CV_SUPPORT
)
407 DRM_INFO(" CV: %s\n", encoder_names
[amdgpu_encoder
->encoder_id
]);
418 bool amdgpu_ddc_probe(struct amdgpu_connector
*amdgpu_connector
,
424 struct i2c_msg msgs
[] = {
439 /* on hw with routers, select right port */
440 if (amdgpu_connector
->router
.ddc_valid
)
441 amdgpu_i2c_router_select_ddc_port(amdgpu_connector
);
444 ret
= i2c_transfer(&amdgpu_connector
->ddc_bus
->aux
.ddc
, msgs
, 2);
446 ret
= i2c_transfer(&amdgpu_connector
->ddc_bus
->adapter
, msgs
, 2);
450 /* Couldn't find an accessible DDC on this connector */
452 /* Probe also for valid EDID header
453 * EDID header starts with:
454 * 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00.
455 * Only the first 6 bytes must be valid as
456 * drm_edid_block_valid() can fix the last 2 bytes */
457 if (drm_edid_header_is_valid(buf
) < 6) {
458 /* Couldn't find an accessible EDID on this
465 static void amdgpu_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
467 struct amdgpu_framebuffer
*amdgpu_fb
= to_amdgpu_framebuffer(fb
);
469 if (amdgpu_fb
->obj
) {
470 drm_gem_object_unreference_unlocked(amdgpu_fb
->obj
);
472 drm_framebuffer_cleanup(fb
);
476 static int amdgpu_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
477 struct drm_file
*file_priv
,
478 unsigned int *handle
)
480 struct amdgpu_framebuffer
*amdgpu_fb
= to_amdgpu_framebuffer(fb
);
482 return drm_gem_handle_create(file_priv
, amdgpu_fb
->obj
, handle
);
485 static const struct drm_framebuffer_funcs amdgpu_fb_funcs
= {
486 .destroy
= amdgpu_user_framebuffer_destroy
,
487 .create_handle
= amdgpu_user_framebuffer_create_handle
,
491 amdgpu_framebuffer_init(struct drm_device
*dev
,
492 struct amdgpu_framebuffer
*rfb
,
493 struct drm_mode_fb_cmd2
*mode_cmd
,
494 struct drm_gem_object
*obj
)
498 drm_helper_mode_fill_fb_struct(&rfb
->base
, mode_cmd
);
499 ret
= drm_framebuffer_init(dev
, &rfb
->base
, &amdgpu_fb_funcs
);
507 static struct drm_framebuffer
*
508 amdgpu_user_framebuffer_create(struct drm_device
*dev
,
509 struct drm_file
*file_priv
,
510 struct drm_mode_fb_cmd2
*mode_cmd
)
512 struct drm_gem_object
*obj
;
513 struct amdgpu_framebuffer
*amdgpu_fb
;
516 obj
= drm_gem_object_lookup(dev
, file_priv
, mode_cmd
->handles
[0]);
518 dev_err(&dev
->pdev
->dev
, "No GEM object associated to handle 0x%08X, "
519 "can't create framebuffer\n", mode_cmd
->handles
[0]);
520 return ERR_PTR(-ENOENT
);
523 amdgpu_fb
= kzalloc(sizeof(*amdgpu_fb
), GFP_KERNEL
);
524 if (amdgpu_fb
== NULL
) {
525 drm_gem_object_unreference_unlocked(obj
);
526 return ERR_PTR(-ENOMEM
);
529 ret
= amdgpu_framebuffer_init(dev
, amdgpu_fb
, mode_cmd
, obj
);
532 drm_gem_object_unreference_unlocked(obj
);
536 return &amdgpu_fb
->base
;
539 static void amdgpu_output_poll_changed(struct drm_device
*dev
)
541 struct amdgpu_device
*adev
= dev
->dev_private
;
542 amdgpu_fb_output_poll_changed(adev
);
545 const struct drm_mode_config_funcs amdgpu_mode_funcs
= {
546 .fb_create
= amdgpu_user_framebuffer_create
,
547 .output_poll_changed
= amdgpu_output_poll_changed
550 static struct drm_prop_enum_list amdgpu_underscan_enum_list
[] =
551 { { UNDERSCAN_OFF
, "off" },
552 { UNDERSCAN_ON
, "on" },
553 { UNDERSCAN_AUTO
, "auto" },
556 static struct drm_prop_enum_list amdgpu_audio_enum_list
[] =
557 { { AMDGPU_AUDIO_DISABLE
, "off" },
558 { AMDGPU_AUDIO_ENABLE
, "on" },
559 { AMDGPU_AUDIO_AUTO
, "auto" },
562 /* XXX support different dither options? spatial, temporal, both, etc. */
563 static struct drm_prop_enum_list amdgpu_dither_enum_list
[] =
564 { { AMDGPU_FMT_DITHER_DISABLE
, "off" },
565 { AMDGPU_FMT_DITHER_ENABLE
, "on" },
568 int amdgpu_modeset_create_props(struct amdgpu_device
*adev
)
572 if (adev
->is_atom_bios
) {
573 adev
->mode_info
.coherent_mode_property
=
574 drm_property_create_range(adev
->ddev
, 0 , "coherent", 0, 1);
575 if (!adev
->mode_info
.coherent_mode_property
)
579 adev
->mode_info
.load_detect_property
=
580 drm_property_create_range(adev
->ddev
, 0, "load detection", 0, 1);
581 if (!adev
->mode_info
.load_detect_property
)
584 drm_mode_create_scaling_mode_property(adev
->ddev
);
586 sz
= ARRAY_SIZE(amdgpu_underscan_enum_list
);
587 adev
->mode_info
.underscan_property
=
588 drm_property_create_enum(adev
->ddev
, 0,
590 amdgpu_underscan_enum_list
, sz
);
592 adev
->mode_info
.underscan_hborder_property
=
593 drm_property_create_range(adev
->ddev
, 0,
594 "underscan hborder", 0, 128);
595 if (!adev
->mode_info
.underscan_hborder_property
)
598 adev
->mode_info
.underscan_vborder_property
=
599 drm_property_create_range(adev
->ddev
, 0,
600 "underscan vborder", 0, 128);
601 if (!adev
->mode_info
.underscan_vborder_property
)
604 sz
= ARRAY_SIZE(amdgpu_audio_enum_list
);
605 adev
->mode_info
.audio_property
=
606 drm_property_create_enum(adev
->ddev
, 0,
608 amdgpu_audio_enum_list
, sz
);
610 sz
= ARRAY_SIZE(amdgpu_dither_enum_list
);
611 adev
->mode_info
.dither_property
=
612 drm_property_create_enum(adev
->ddev
, 0,
614 amdgpu_dither_enum_list
, sz
);
619 void amdgpu_update_display_priority(struct amdgpu_device
*adev
)
621 /* adjustment options for the display watermarks */
622 if ((amdgpu_disp_priority
== 0) || (amdgpu_disp_priority
> 2))
623 adev
->mode_info
.disp_priority
= 0;
625 adev
->mode_info
.disp_priority
= amdgpu_disp_priority
;
629 static bool is_hdtv_mode(const struct drm_display_mode
*mode
)
631 /* try and guess if this is a tv or a monitor */
632 if ((mode
->vdisplay
== 480 && mode
->hdisplay
== 720) || /* 480p */
633 (mode
->vdisplay
== 576) || /* 576p */
634 (mode
->vdisplay
== 720) || /* 720p */
635 (mode
->vdisplay
== 1080)) /* 1080p */
641 bool amdgpu_crtc_scaling_mode_fixup(struct drm_crtc
*crtc
,
642 const struct drm_display_mode
*mode
,
643 struct drm_display_mode
*adjusted_mode
)
645 struct drm_device
*dev
= crtc
->dev
;
646 struct drm_encoder
*encoder
;
647 struct amdgpu_crtc
*amdgpu_crtc
= to_amdgpu_crtc(crtc
);
648 struct amdgpu_encoder
*amdgpu_encoder
;
649 struct drm_connector
*connector
;
650 struct amdgpu_connector
*amdgpu_connector
;
651 u32 src_v
= 1, dst_v
= 1;
652 u32 src_h
= 1, dst_h
= 1;
654 amdgpu_crtc
->h_border
= 0;
655 amdgpu_crtc
->v_border
= 0;
657 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
658 if (encoder
->crtc
!= crtc
)
660 amdgpu_encoder
= to_amdgpu_encoder(encoder
);
661 connector
= amdgpu_get_connector_for_encoder(encoder
);
662 amdgpu_connector
= to_amdgpu_connector(connector
);
665 if (amdgpu_encoder
->rmx_type
== RMX_OFF
)
666 amdgpu_crtc
->rmx_type
= RMX_OFF
;
667 else if (mode
->hdisplay
< amdgpu_encoder
->native_mode
.hdisplay
||
668 mode
->vdisplay
< amdgpu_encoder
->native_mode
.vdisplay
)
669 amdgpu_crtc
->rmx_type
= amdgpu_encoder
->rmx_type
;
671 amdgpu_crtc
->rmx_type
= RMX_OFF
;
672 /* copy native mode */
673 memcpy(&amdgpu_crtc
->native_mode
,
674 &amdgpu_encoder
->native_mode
,
675 sizeof(struct drm_display_mode
));
676 src_v
= crtc
->mode
.vdisplay
;
677 dst_v
= amdgpu_crtc
->native_mode
.vdisplay
;
678 src_h
= crtc
->mode
.hdisplay
;
679 dst_h
= amdgpu_crtc
->native_mode
.hdisplay
;
681 /* fix up for overscan on hdmi */
682 if ((!(mode
->flags
& DRM_MODE_FLAG_INTERLACE
)) &&
683 ((amdgpu_encoder
->underscan_type
== UNDERSCAN_ON
) ||
684 ((amdgpu_encoder
->underscan_type
== UNDERSCAN_AUTO
) &&
685 drm_detect_hdmi_monitor(amdgpu_connector_edid(connector
)) &&
686 is_hdtv_mode(mode
)))) {
687 if (amdgpu_encoder
->underscan_hborder
!= 0)
688 amdgpu_crtc
->h_border
= amdgpu_encoder
->underscan_hborder
;
690 amdgpu_crtc
->h_border
= (mode
->hdisplay
>> 5) + 16;
691 if (amdgpu_encoder
->underscan_vborder
!= 0)
692 amdgpu_crtc
->v_border
= amdgpu_encoder
->underscan_vborder
;
694 amdgpu_crtc
->v_border
= (mode
->vdisplay
>> 5) + 16;
695 amdgpu_crtc
->rmx_type
= RMX_FULL
;
696 src_v
= crtc
->mode
.vdisplay
;
697 dst_v
= crtc
->mode
.vdisplay
- (amdgpu_crtc
->v_border
* 2);
698 src_h
= crtc
->mode
.hdisplay
;
699 dst_h
= crtc
->mode
.hdisplay
- (amdgpu_crtc
->h_border
* 2);
702 if (amdgpu_crtc
->rmx_type
!= RMX_OFF
) {
704 a
.full
= dfixed_const(src_v
);
705 b
.full
= dfixed_const(dst_v
);
706 amdgpu_crtc
->vsc
.full
= dfixed_div(a
, b
);
707 a
.full
= dfixed_const(src_h
);
708 b
.full
= dfixed_const(dst_h
);
709 amdgpu_crtc
->hsc
.full
= dfixed_div(a
, b
);
711 amdgpu_crtc
->vsc
.full
= dfixed_const(1);
712 amdgpu_crtc
->hsc
.full
= dfixed_const(1);
718 * Retrieve current video scanout position of crtc on a given gpu, and
719 * an optional accurate timestamp of when query happened.
721 * \param dev Device to query.
722 * \param crtc Crtc to query.
723 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
724 * \param *vpos Location where vertical scanout position should be stored.
725 * \param *hpos Location where horizontal scanout position should go.
726 * \param *stime Target location for timestamp taken immediately before
727 * scanout position query. Can be NULL to skip timestamp.
728 * \param *etime Target location for timestamp taken immediately after
729 * scanout position query. Can be NULL to skip timestamp.
731 * Returns vpos as a positive number while in active scanout area.
732 * Returns vpos as a negative number inside vblank, counting the number
733 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
734 * until start of active scanout / end of vblank."
736 * \return Flags, or'ed together as follows:
738 * DRM_SCANOUTPOS_VALID = Query successful.
739 * DRM_SCANOUTPOS_INVBL = Inside vblank.
740 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
741 * this flag means that returned position may be offset by a constant but
742 * unknown small number of scanlines wrt. real scanout position.
745 int amdgpu_get_crtc_scanoutpos(struct drm_device
*dev
, int crtc
, unsigned int flags
,
746 int *vpos
, int *hpos
, ktime_t
*stime
, ktime_t
*etime
)
748 u32 vbl
= 0, position
= 0;
749 int vbl_start
, vbl_end
, vtotal
, ret
= 0;
752 struct amdgpu_device
*adev
= dev
->dev_private
;
754 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */
756 /* Get optional system timestamp before query. */
758 *stime
= ktime_get();
760 if (amdgpu_display_page_flip_get_scanoutpos(adev
, crtc
, &vbl
, &position
) == 0)
761 ret
|= DRM_SCANOUTPOS_VALID
;
763 /* Get optional system timestamp after query. */
765 *etime
= ktime_get();
767 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */
769 /* Decode into vertical and horizontal scanout position. */
770 *vpos
= position
& 0x1fff;
771 *hpos
= (position
>> 16) & 0x1fff;
773 /* Valid vblank area boundaries from gpu retrieved? */
776 ret
|= DRM_SCANOUTPOS_ACCURATE
;
777 vbl_start
= vbl
& 0x1fff;
778 vbl_end
= (vbl
>> 16) & 0x1fff;
781 /* No: Fake something reasonable which gives at least ok results. */
782 vbl_start
= adev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vdisplay
;
786 /* Test scanout position against vblank region. */
787 if ((*vpos
< vbl_start
) && (*vpos
>= vbl_end
))
790 /* Check if inside vblank area and apply corrective offsets:
791 * vpos will then be >=0 in video scanout area, but negative
792 * within vblank area, counting down the number of lines until
796 /* Inside "upper part" of vblank area? Apply corrective offset if so: */
797 if (in_vbl
&& (*vpos
>= vbl_start
)) {
798 vtotal
= adev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vtotal
;
799 *vpos
= *vpos
- vtotal
;
802 /* Correct for shifted end of vbl at vbl_end. */
803 *vpos
= *vpos
- vbl_end
;
807 ret
|= DRM_SCANOUTPOS_IN_VBLANK
;
809 /* Is vpos outside nominal vblank area, but less than
810 * 1/100 of a frame height away from start of vblank?
811 * If so, assume this isn't a massively delayed vblank
812 * interrupt, but a vblank interrupt that fired a few
813 * microseconds before true start of vblank. Compensate
814 * by adding a full frame duration to the final timestamp.
815 * Happens, e.g., on ATI R500, R600.
817 * We only do this if DRM_CALLED_FROM_VBLIRQ.
819 if ((flags
& DRM_CALLED_FROM_VBLIRQ
) && !in_vbl
) {
820 vbl_start
= adev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vdisplay
;
821 vtotal
= adev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vtotal
;
823 if (vbl_start
- *vpos
< vtotal
/ 100) {
826 /* Signal this correction as "applied". */
834 int amdgpu_crtc_idx_to_irq_type(struct amdgpu_device
*adev
, int crtc
)
836 if (crtc
< 0 || crtc
>= adev
->mode_info
.num_crtc
)
837 return AMDGPU_CRTC_IRQ_NONE
;
841 return AMDGPU_CRTC_IRQ_VBLANK1
;
843 return AMDGPU_CRTC_IRQ_VBLANK2
;
845 return AMDGPU_CRTC_IRQ_VBLANK3
;
847 return AMDGPU_CRTC_IRQ_VBLANK4
;
849 return AMDGPU_CRTC_IRQ_VBLANK5
;
851 return AMDGPU_CRTC_IRQ_VBLANK6
;
853 return AMDGPU_CRTC_IRQ_NONE
;