From: Andrey Grodzovsky <andrey.grodzov...@amd.com>
CRTC in DPMS state off calls for low power state entry.
Support both atomic mode setting and pre-atomic mode setting.
v2: move comment
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 45 +++++++++++++++++++++----
1 file changed, 38 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 61dc26515c7e..e7f7463a0cbe 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1296,24 +1296,55 @@ static int amdgpu_pmops_runtime_idle(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
struct amdgpu_device *adev = drm_dev->dev_private;
- struct drm_crtc *crtc;
+ /* we don't want the main rpm_idle to call suspend - we want to
autosuspend */
+ int ret = 1;
if (!adev->runpm) {
pm_runtime_forbid(dev);
return -EBUSY;
}
- list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
- if (crtc->enabled) {
- DRM_DEBUG_DRIVER("failing to power off - crtc
active\n");
- return -EBUSY;
+ if (amdgpu_device_has_dc_support(adev)) {
+ struct drm_crtc *crtc;
+
+ drm_modeset_lock_all(drm_dev);
+
+ drm_for_each_crtc(crtc, drm_dev) {
+ if (crtc->state->active) {
+ ret = -EBUSY;
+ break;
+ }
}
+
+ drm_modeset_unlock_all(drm_dev);
+
+ } else {
+ struct drm_connector *list_connector;
+ struct drm_connector_list_iter iter;
+
+ mutex_lock(&drm_dev->mode_config.mutex);
+ drm_modeset_lock(&drm_dev->mode_config.connection_mutex, NULL);
+
+ drm_connector_list_iter_begin(drm_dev, &iter);
+ drm_for_each_connector_iter(list_connector, &iter) {
+ if (list_connector->dpms == DRM_MODE_DPMS_ON) {
+ ret = -EBUSY;
+ break;
+ }
+ }
+
+ drm_connector_list_iter_end(&iter);
+
+ drm_modeset_unlock(&drm_dev->mode_config.connection_mutex);
+ mutex_unlock(&drm_dev->mode_config.mutex);
}
+ if (ret == -EBUSY)
+ DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
+
pm_runtime_mark_last_busy(dev);
pm_runtime_autosuspend(dev);
- /* we don't want the main rpm_idle to call suspend - we want to
autosuspend */
- return 1;
+ return ret;
}
long amdgpu_drm_ioctl(struct file *filp,
--
2.23.0
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