+static bool radeon_pm_in_vbl(struct radeon_device *rdev);
+static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish);
+static void radeon_pm_update_profile(struct radeon_device *rdev);
+static void radeon_pm_set_clocks(struct radeon_device *rdev);
+
+#define ACPI_AC_CLASS "ac_adapter"
+
+#ifdef CONFIG_ACPI
+static int radeon_acpi_event(struct notifier_block *nb,
+ unsigned long val,
+ void *data)
+{
+ struct radeon_device *rdev = container_of(nb, struct radeon_device, acpi_nb);
+ struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
+
+ if (strcmp(entry->device_class, ACPI_AC_CLASS) == 0) {
+ if (power_supply_is_system_supplied() > 0)
+ DRM_DEBUG("pm: AC\n");
+ else
+ DRM_DEBUG("pm: DC\n");
+
+ if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
+ if (rdev->pm.profile == PM_PROFILE_AUTO) {
+ mutex_lock(&rdev->pm.mutex);
+ radeon_pm_update_profile(rdev);
+ radeon_pm_set_clocks(rdev);
+ mutex_unlock(&rdev->pm.mutex);
+ }
+ }
+ }
+
+ return NOTIFY_OK;
+}
+#endif
+
+static void radeon_pm_update_profile(struct radeon_device *rdev)
+{
+ switch (rdev->pm.profile) {
+ case PM_PROFILE_DEFAULT:
+ rdev->pm.profile_index = PM_PROFILE_DEFAULT_IDX;
+ break;
+ case PM_PROFILE_AUTO:
+ if (power_supply_is_system_supplied() > 0) {
+ if (rdev->pm.active_crtc_count > 1)
+ rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
+ else
+ rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
+ } else {
+ if (rdev->pm.active_crtc_count > 1)
+ rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX;
+ else
+ rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
+ }
+ break;
+ case PM_PROFILE_LOW:
+ if (rdev->pm.active_crtc_count > 1)
+ rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX;
+ else
+ rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
+ break;
+ case PM_PROFILE_HIGH:
+ if (rdev->pm.active_crtc_count > 1)
+ rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
+ else
+ rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
+ break;
+ }
+
+ if (rdev->pm.active_crtc_count == 0) {
+ rdev->pm.requested_power_state_index =
+ rdev->pm.profiles[rdev->pm.profile_index].dpms_off_ps_idx;
+ rdev->pm.requested_clock_mode_index =
+ rdev->pm.profiles[rdev->pm.profile_index].dpms_off_cm_idx;
+ } else {
+ rdev->pm.requested_power_state_index =
+ rdev->pm.profiles[rdev->pm.profile_index].dpms_on_ps_idx;
+ rdev->pm.requested_clock_mode_index =
+ rdev->pm.profiles[rdev->pm.profile_index].dpms_on_cm_idx;
+ }
+}