summaryrefslogtreecommitdiff
path: root/drivers/accel/ivpu/ivpu_pm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/accel/ivpu/ivpu_pm.c')
-rw-r--r--drivers/accel/ivpu/ivpu_pm.c36
1 files changed, 11 insertions, 25 deletions
diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index 7df72fa8100f..aa4d56dc52b3 100644
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -140,32 +140,28 @@ int ivpu_pm_suspend_cb(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
struct ivpu_device *vdev = to_ivpu_device(drm);
- int ret;
+ unsigned long timeout;
ivpu_dbg(vdev, PM, "Suspend..\n");
- ret = ivpu_suspend(vdev);
- if (ret && vdev->pm->suspend_reschedule_counter) {
- ivpu_dbg(vdev, PM, "Failed to enter idle, rescheduling suspend, retries left %d\n",
- vdev->pm->suspend_reschedule_counter);
- pm_schedule_suspend(dev, vdev->timeout.reschedule_suspend);
- vdev->pm->suspend_reschedule_counter--;
- return -EBUSY;
- } else if (!vdev->pm->suspend_reschedule_counter) {
- ivpu_warn(vdev, "Failed to enter idle, force suspend\n");
- ivpu_pm_prepare_cold_boot(vdev);
- } else {
- ivpu_pm_prepare_warm_boot(vdev);
+ timeout = jiffies + msecs_to_jiffies(vdev->timeout.tdr);
+ while (!ivpu_hw_is_idle(vdev)) {
+ cond_resched();
+ if (time_after_eq(jiffies, timeout)) {
+ ivpu_err(vdev, "Failed to enter idle on system suspend\n");
+ return -EBUSY;
+ }
}
- vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
+ ivpu_suspend(vdev);
+ ivpu_pm_prepare_warm_boot(vdev);
pci_save_state(to_pci_dev(dev));
pci_set_power_state(to_pci_dev(dev), PCI_D3hot);
ivpu_dbg(vdev, PM, "Suspend done.\n");
- return ret;
+ return 0;
}
int ivpu_pm_resume_cb(struct device *dev)
@@ -243,8 +239,6 @@ int ivpu_rpm_get(struct ivpu_device *vdev)
{
int ret;
- ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
-
ret = pm_runtime_resume_and_get(vdev->drm.dev);
if (!drm_WARN_ON(&vdev->drm, ret < 0))
vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
@@ -254,8 +248,6 @@ int ivpu_rpm_get(struct ivpu_device *vdev)
void ivpu_rpm_put(struct ivpu_device *vdev)
{
- ivpu_dbg(vdev, RPM, "rpm_put count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
-
pm_runtime_mark_last_busy(vdev->drm.dev);
pm_runtime_put_autosuspend(vdev->drm.dev);
}
@@ -325,16 +317,10 @@ void ivpu_pm_enable(struct ivpu_device *vdev)
pm_runtime_allow(dev);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
-
- ivpu_dbg(vdev, RPM, "Enable RPM count %d\n", atomic_read(&dev->power.usage_count));
}
void ivpu_pm_disable(struct ivpu_device *vdev)
{
- struct device *dev = vdev->drm.dev;
-
- ivpu_dbg(vdev, RPM, "Disable RPM count %d\n", atomic_read(&dev->power.usage_count));
-
pm_runtime_get_noresume(vdev->drm.dev);
pm_runtime_forbid(vdev->drm.dev);
}