diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c index e23a0a276e33..83ea0afddda7 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c @@ -35,6 +35,9 @@ #include "amdgpu_dm_trace.h" #include "amdgpu_dm_debugfs.h" +#define HPD_DETECTION_PERIOD_uS 5000000 +#define HPD_DETECTION_TIME_uS 1000 + void amdgpu_dm_crtc_handle_vblank(struct amdgpu_crtc *acrtc) { struct drm_crtc *crtc = &acrtc->base; @@ -146,11 +149,65 @@ static void amdgpu_dm_crtc_set_panel_sr_feature( struct amdgpu_dm_connector *aconn = (struct amdgpu_dm_connector *) vblank_work->stream->dm_stream_context; - if (!aconn->disallow_edp_enter_psr) + if (!aconn->disallow_edp_enter_psr) { + struct amdgpu_display_manager *dm = vblank_work->dm; + amdgpu_dm_psr_enable(vblank_work->stream); + if (dm->idle_workqueue && + dm->dc->idle_optimizations_allowed && + dm->idle_workqueue->enable && + !dm->idle_workqueue->running) + schedule_work(&dm->idle_workqueue->work); + } } } +static void amdgpu_dm_idle_worker(struct work_struct *work) +{ + struct idle_workqueue *idle_work; + + idle_work = container_of(work, struct idle_workqueue, work); + idle_work->dm->idle_workqueue->running = true; + fsleep(HPD_DETECTION_PERIOD_uS); + mutex_lock(&idle_work->dm->dc_lock); + while (idle_work->enable) { + if (!idle_work->dm->dc->idle_optimizations_allowed) + break; + + dc_allow_idle_optimizations(idle_work->dm->dc, false); + + mutex_unlock(&idle_work->dm->dc_lock); + fsleep(HPD_DETECTION_TIME_uS); + mutex_lock(&idle_work->dm->dc_lock); + + if (!amdgpu_dm_psr_is_active_allowed(idle_work->dm)) + break; + + dc_allow_idle_optimizations(idle_work->dm->dc, true); + mutex_unlock(&idle_work->dm->dc_lock); + fsleep(HPD_DETECTION_PERIOD_uS); + mutex_lock(&idle_work->dm->dc_lock); + } + mutex_unlock(&idle_work->dm->dc_lock); + idle_work->dm->idle_workqueue->running = false; +} + +struct idle_workqueue *idle_create_workqueue(struct amdgpu_device *adev) +{ + struct idle_workqueue *idle_work; + + idle_work = kzalloc(sizeof(*idle_work), GFP_KERNEL); + if (ZERO_OR_NULL_PTR(idle_work)) + return NULL; + + idle_work->dm = &adev->dm; + idle_work->enable = false; + idle_work->running = false; + INIT_WORK(&idle_work->work, amdgpu_dm_idle_worker); + + return idle_work; +} + static void amdgpu_dm_crtc_vblank_control_worker(struct work_struct *work) { struct vblank_control_work *vblank_work = |