1 /*
2 * Copyright 2021 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 */
23
24 #include "amdgpu.h"
25 #include "amdgpu_display.h"
26 #include "hwmgr.h"
27 #include "amdgpu_smu.h"
28 #include "amdgpu_dpm_internal.h"
29
amdgpu_dpm_get_active_displays(struct amdgpu_device * adev)30 void amdgpu_dpm_get_active_displays(struct amdgpu_device *adev)
31 {
32 struct drm_device *ddev = adev_to_drm(adev);
33 struct drm_crtc *crtc;
34 struct amdgpu_crtc *amdgpu_crtc;
35
36 adev->pm.dpm.new_active_crtcs = 0;
37 adev->pm.dpm.new_active_crtc_count = 0;
38 if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
39 list_for_each_entry(crtc,
40 &ddev->mode_config.crtc_list, head) {
41 amdgpu_crtc = to_amdgpu_crtc(crtc);
42 if (amdgpu_crtc->enabled) {
43 adev->pm.dpm.new_active_crtcs |= (1 << amdgpu_crtc->crtc_id);
44 adev->pm.dpm.new_active_crtc_count++;
45 }
46 }
47 }
48 }
49
amdgpu_dpm_get_vblank_time(struct amdgpu_device * adev)50 u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev)
51 {
52 struct drm_device *dev = adev_to_drm(adev);
53 struct drm_crtc *crtc;
54 struct amdgpu_crtc *amdgpu_crtc;
55 u32 vblank_in_pixels;
56 u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */
57
58 if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
59 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
60 amdgpu_crtc = to_amdgpu_crtc(crtc);
61 if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
62 vblank_in_pixels =
63 amdgpu_crtc->hw_mode.crtc_htotal *
64 (amdgpu_crtc->hw_mode.crtc_vblank_end -
65 amdgpu_crtc->hw_mode.crtc_vdisplay +
66 (amdgpu_crtc->v_border * 2));
67
68 vblank_time_us = vblank_in_pixels * 1000 / amdgpu_crtc->hw_mode.clock;
69 break;
70 }
71 }
72 }
73
74 return vblank_time_us;
75 }
76
amdgpu_dpm_get_vrefresh(struct amdgpu_device * adev)77 u32 amdgpu_dpm_get_vrefresh(struct amdgpu_device *adev)
78 {
79 struct drm_device *dev = adev_to_drm(adev);
80 struct drm_crtc *crtc;
81 struct amdgpu_crtc *amdgpu_crtc;
82 u32 vrefresh = 0;
83
84 if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
85 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
86 amdgpu_crtc = to_amdgpu_crtc(crtc);
87 if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
88 vrefresh = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
89 break;
90 }
91 }
92 }
93
94 return vrefresh;
95 }
96