diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c new file mode 100644 index 000000000000..42efe838fa85 --- /dev/null +++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c @@ -0,0 +1,95 @@ +/* + * 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 = 0xffffffff; /* 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; + 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; +} |