/*
* Copyright 2021 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
*/
#include "amdgpu.h"
#include "amdgpu_display.h"
#include "hwmgr.h"
#include "amdgpu_smu.h"
#include "amdgpu_dpm_internal.h"
void amdgpu_dpm_get_active_displays(struct amdgpu_device *adev)
{
struct drm_device *ddev = adev_to_drm(adev);
struct drm_crtc *crtc;
struct amdgpu_crtc *amdgpu_crtc;
adev->pm.dpm.new_active_crtcs = 0 ;
adev->pm.dpm.new_active_crtc_count = 0 ;
if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
list_for_each_entry(crtc,
&ddev->mode_config.crtc_list, head) {
amdgpu_crtc = to_amdgpu_crtc(crtc);
if (amdgpu_crtc->enabled) {
adev->pm.dpm.new_active_crtcs |= (1 << amdgpu_crtc->crtc_id);
adev->pm.dpm.new_active_crtc_count++;
}
}
}
}
u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_crtc *crtc;
struct amdgpu_crtc *amdgpu_crtc;
u32 vblank_in_pixels;
u32 vblank_time_us = 0 xffffffff; /* if the displays are off, vblank time is max */
if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
amdgpu_crtc = to_amdgpu_crtc(crtc);
if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
vblank_in_pixels =
amdgpu_crtc->hw_mode.crtc_htotal *
(amdgpu_crtc->hw_mode.crtc_vblank_end -
amdgpu_crtc->hw_mode.crtc_vdisplay +
(amdgpu_crtc->v_border * 2 ));
vblank_time_us = vblank_in_pixels * 1000 / amdgpu_crtc->hw_mode.clock;
/* we have issues with mclk switching with
* refresh rates over 120 hz on the non - DC code .
*/
if (drm_mode_vrefresh(&amdgpu_crtc->hw_mode) > 120 )
vblank_time_us = 0 ;
break ;
}
}
}
return vblank_time_us;
}
u32 amdgpu_dpm_get_vrefresh(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_crtc *crtc;
struct amdgpu_crtc *amdgpu_crtc;
u32 vrefresh = 0 ;
if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
amdgpu_crtc = to_amdgpu_crtc(crtc);
if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) {
vrefresh = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
break ;
}
}
}
return vrefresh;
}
void amdgpu_dpm_get_display_cfg(struct amdgpu_device *adev)
{
struct drm_device *ddev = adev_to_drm(adev);
struct amd_pp_display_configuration *cfg = &adev->pm.pm_display_cfg;
struct single_display_configuration *display_cfg;
struct drm_crtc *crtc;
struct amdgpu_crtc *amdgpu_crtc;
struct amdgpu_connector *conn;
int num_crtcs = 0 ;
int vrefresh;
u32 vblank_in_pixels, vblank_time_us;
cfg->min_vblank_time = 0 xffffffff; /* if the displays are off, vblank time is max */
if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
amdgpu_crtc = to_amdgpu_crtc(crtc);
/* The array should only contain active displays. */
if (!amdgpu_crtc->enabled)
continue ;
conn = to_amdgpu_connector(amdgpu_crtc->connector);
display_cfg = &adev->pm.pm_display_cfg.displays[num_crtcs++];
if (amdgpu_crtc->hw_mode.clock) {
vrefresh = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
vblank_in_pixels =
amdgpu_crtc->hw_mode.crtc_htotal *
(amdgpu_crtc->hw_mode.crtc_vblank_end -
amdgpu_crtc->hw_mode.crtc_vdisplay +
(amdgpu_crtc->v_border * 2 ));
vblank_time_us =
vblank_in_pixels * 1000 / amdgpu_crtc->hw_mode.clock;
/* The legacy (non-DC) code has issues with mclk switching
* with refresh rates over 120 Hz . Disable mclk switching .
*/
if (vrefresh > 120 )
vblank_time_us = 0 ;
/* Find minimum vblank time. */
if (vblank_time_us < cfg->min_vblank_time)
cfg->min_vblank_time = vblank_time_us;
/* Find vertical refresh rate of first active display. */
if (!cfg->vrefresh)
cfg->vrefresh = vrefresh;
}
if (amdgpu_crtc->crtc_id < cfg->crtc_index) {
/* Find first active CRTC and its line time. */
cfg->crtc_index = amdgpu_crtc->crtc_id;
cfg->line_time_in_us = amdgpu_crtc->line_time;
}
display_cfg->controller_id = amdgpu_crtc->crtc_id;
display_cfg->pixel_clock = conn->pixelclock_for_modeset;
}
}
cfg->display_clk = adev->clock.default_dispclk;
cfg->num_display = num_crtcs;
}
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-10-11)
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