diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c index 19f46d0b6ca7..8f758eaeef9f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c @@ -758,6 +758,45 @@ static int amdgpu_cgs_query_system_info(void *cgs_device, return 0; } +static int amdgpu_cgs_get_active_displays_info(void *cgs_device, + struct cgs_display_info *info) +{ + CGS_FUNC_ADEV; + struct amdgpu_crtc *amdgpu_crtc; + struct drm_device *ddev = adev->ddev; + struct drm_crtc *crtc; + uint32_t line_time_us, vblank_lines; + + if (info == NULL) + return -EINVAL; + + 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 (crtc->enabled) { + info->active_display_mask |= (1 << amdgpu_crtc->crtc_id); + info->display_count++; + } + if (info->mode_info != NULL && + crtc->enabled && amdgpu_crtc->enabled && + amdgpu_crtc->hw_mode.clock) { + line_time_us = (amdgpu_crtc->hw_mode.crtc_htotal * 1000) / + amdgpu_crtc->hw_mode.clock; + vblank_lines = amdgpu_crtc->hw_mode.crtc_vblank_end - + amdgpu_crtc->hw_mode.crtc_vdisplay + + (amdgpu_crtc->v_border * 2); + info->mode_info->vblank_time_us = vblank_lines * line_time_us; + info->mode_info->refresh_rate = drm_mode_vrefresh(&amdgpu_crtc->hw_mode); + info->mode_info->ref_clock = adev->clock.spll.reference_freq; + info->mode_info++; + } + } + } + + return 0; +} + /** \brief evaluate acpi namespace object, handle or pathname must be valid * \param cgs_device * \param info input/output arguments for the control method @@ -1006,6 +1045,7 @@ static const struct cgs_ops amdgpu_cgs_ops = { amdgpu_cgs_get_firmware_info, amdgpu_cgs_set_powergating_state, amdgpu_cgs_set_clockgating_state, + amdgpu_cgs_get_active_displays_info, amdgpu_cgs_call_acpi_method, amdgpu_cgs_query_system_info, }; |