}
static int intel_suspend_complete(struct drm_i915_private *dev_priv);
-static int intel_resume_prepare(struct drm_i915_private *dev_priv,
- bool rpm_resume);
+static int vlv_resume_prepare(struct drm_i915_private *dev_priv,
+ bool rpm_resume);
-static int i915_drm_freeze(struct drm_device *dev)
+static int i915_drm_suspend(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc;
return 0;
}
-int i915_suspend(struct drm_device *dev, pm_message_t state)
+static int i915_drm_suspend_late(struct drm_device *drm_dev)
+{
+ struct drm_i915_private *dev_priv = drm_dev->dev_private;
+ int ret;
+
+ ret = intel_suspend_complete(dev_priv);
+
+ if (ret) {
+ DRM_ERROR("Suspend complete failed: %d\n", ret);
+
+ return ret;
+ }
+
+ pci_disable_device(drm_dev->pdev);
+ pci_set_power_state(drm_dev->pdev, PCI_D3hot);
+
+ return 0;
+}
+
+int i915_suspend_legacy(struct drm_device *dev, pm_message_t state)
{
int error;
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
- error = i915_drm_freeze(dev);
+ error = i915_drm_suspend(dev);
if (error)
return error;
- if (state.event == PM_EVENT_SUSPEND) {
- /* Shut down the device */
- pci_disable_device(dev->pdev);
- pci_set_power_state(dev->pdev, PCI_D3hot);
- }
-
- return 0;
-}
-
-static int i915_drm_thaw_early(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- int ret;
-
- ret = intel_resume_prepare(dev_priv, false);
- if (ret)
- DRM_ERROR("Resume prepare failed: %d,Continuing resume\n", ret);
-
- intel_uncore_early_sanitize(dev, true);
- intel_uncore_sanitize(dev);
- intel_power_domains_init_hw(dev_priv);
-
- return ret;
+ return i915_drm_suspend_late(dev);
}
-static int __i915_drm_thaw(struct drm_device *dev, bool restore_gtt_mappings)
+static int i915_drm_resume(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (drm_core_check_feature(dev, DRIVER_MODESET) &&
- restore_gtt_mappings) {
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
mutex_lock(&dev->struct_mutex);
i915_gem_restore_gtt_mappings(dev);
mutex_unlock(&dev->struct_mutex);
intel_opregion_notify_adapter(dev, PCI_D0);
- return 0;
-}
-
-static int i915_drm_thaw(struct drm_device *dev)
-{
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- i915_check_and_clear_faults(dev);
+ drm_kms_helper_poll_enable(dev);
- return __i915_drm_thaw(dev, true);
+ return 0;
}
-static int i915_resume_early(struct drm_device *dev)
+static int i915_drm_resume_early(struct drm_device *dev)
{
- if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
- return 0;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret = 0;
/*
* We have a resume ordering issue with the snd-hda driver also
pci_set_master(dev->pdev);
- return i915_drm_thaw_early(dev);
+ if (IS_VALLEYVIEW(dev_priv))
+ ret = vlv_resume_prepare(dev_priv, false);
+ if (ret)
+ DRM_ERROR("Resume prepare failed: %d,Continuing resume\n", ret);
+
+ intel_uncore_early_sanitize(dev, true);
+
+ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ hsw_disable_pc8(dev_priv);
+
+ intel_uncore_sanitize(dev);
+ intel_power_domains_init_hw(dev_priv);
+
+ return ret;
}
-int i915_resume(struct drm_device *dev)
+int i915_resume_legacy(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
- /*
- * Platforms with opregion should have sane BIOS, older ones (gen3 and
- * earlier) need to restore the GTT mappings since the BIOS might clear
- * all our scratch PTEs.
- */
- ret = __i915_drm_thaw(dev, !dev_priv->opregion.header);
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
+
+ ret = i915_drm_resume_early(dev);
if (ret)
return ret;
- drm_kms_helper_poll_enable(dev);
- return 0;
-}
-
-static int i915_resume_legacy(struct drm_device *dev)
-{
- i915_resume_early(dev);
- i915_resume(dev);
-
- return 0;
+ return i915_drm_resume(dev);
}
/**
if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
- return i915_drm_freeze(drm_dev);
+ return i915_drm_suspend(drm_dev);
}
static int i915_pm_suspend_late(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- struct drm_i915_private *dev_priv = drm_dev->dev_private;
- int ret;
/*
* We have a suspedn ordering issue with the snd-hda driver also
if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
- ret = intel_suspend_complete(dev_priv);
-
- if (ret)
- DRM_ERROR("Suspend complete failed: %d\n", ret);
- else {
- pci_disable_device(pdev);
- pci_set_power_state(pdev, PCI_D3hot);
- }
-
- return ret;
+ return i915_drm_suspend_late(drm_dev);
}
static int i915_pm_resume_early(struct device *dev)
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- return i915_resume_early(drm_dev);
-}
-
-static int i915_pm_resume(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct drm_device *drm_dev = pci_get_drvdata(pdev);
-
- return i915_resume(drm_dev);
-}
-
-static int i915_pm_freeze(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct drm_device *drm_dev = pci_get_drvdata(pdev);
-
- if (!drm_dev || !drm_dev->dev_private) {
- dev_err(dev, "DRM not initialized, aborting suspend.\n");
- return -ENODEV;
- }
-
- return i915_drm_freeze(drm_dev);
-}
-
-static int i915_pm_freeze_late(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct drm_device *drm_dev = pci_get_drvdata(pdev);
- struct drm_i915_private *dev_priv = drm_dev->dev_private;
-
- return intel_suspend_complete(dev_priv);
-}
-
-static int i915_pm_thaw_early(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
- return i915_drm_thaw_early(drm_dev);
+ return i915_drm_resume_early(drm_dev);
}
-static int i915_pm_thaw(struct device *dev)
+static int i915_pm_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- return i915_drm_thaw(drm_dev);
-}
-
-static int i915_pm_poweroff(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
- return i915_drm_freeze(drm_dev);
+ return i915_drm_resume(drm_dev);
}
static int hsw_suspend_complete(struct drm_i915_private *dev_priv)
return 0;
}
-static int snb_resume_prepare(struct drm_i915_private *dev_priv,
- bool rpm_resume)
-{
- struct drm_device *dev = dev_priv->dev;
-
- if (rpm_resume)
- intel_init_pch_refclk(dev);
-
- return 0;
-}
-
-static int hsw_resume_prepare(struct drm_i915_private *dev_priv,
- bool rpm_resume)
-{
- hsw_disable_pc8(dev_priv);
-
- return 0;
-}
-
/*
* Save all Gunit registers that may be lost after a D3 and a subsequent
* S0i[R123] transition. The list of registers needing a save/restore is
i915_gem_release_all_mmaps(dev_priv);
mutex_unlock(&dev->struct_mutex);
- /*
- * rps.work can't be rearmed here, since we get here only after making
- * sure the GPU is idle and the RPS freq is set to the minimum. See
- * intel_mark_idle().
- */
- cancel_work_sync(&dev_priv->rps.work);
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
intel_runtime_pm_disable_interrupts(dev_priv);
+ intel_suspend_gt_powersave(dev);
ret = intel_suspend_complete(dev_priv);
if (ret) {
struct pci_dev *pdev = to_pci_dev(device);
struct drm_device *dev = pci_get_drvdata(pdev);
struct drm_i915_private *dev_priv = dev->dev_private;
- int ret;
+ int ret = 0;
if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev)))
return -ENODEV;
intel_opregion_notify_adapter(dev, PCI_D0);
dev_priv->pm.suspended = false;
- ret = intel_resume_prepare(dev_priv, true);
+ if (IS_GEN6(dev_priv))
+ intel_init_pch_refclk(dev);
+ else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ hsw_disable_pc8(dev_priv);
+ else if (IS_VALLEYVIEW(dev_priv))
+ ret = vlv_resume_prepare(dev_priv, true);
+
/*
* No point of rolling back things in case of an error, as the best
* we can do is to hope that things will still work (and disable RPM).
gen6_update_ring_freq(dev);
intel_runtime_pm_enable_interrupts(dev_priv);
- intel_reset_gt_powersave(dev);
+ intel_enable_gt_powersave(dev);
if (ret)
DRM_ERROR("Runtime resume failed, disabling it (%d)\n", ret);
return ret;
}
-/*
- * This function implements common functionality of runtime and system
- * resume sequence. Variable rpm_resume used for implementing different
- * code paths.
- */
-static int intel_resume_prepare(struct drm_i915_private *dev_priv,
- bool rpm_resume)
-{
- struct drm_device *dev = dev_priv->dev;
- int ret;
-
- if (IS_GEN6(dev))
- ret = snb_resume_prepare(dev_priv, rpm_resume);
- else if (IS_HASWELL(dev) || IS_BROADWELL(dev))
- ret = hsw_resume_prepare(dev_priv, rpm_resume);
- else if (IS_VALLEYVIEW(dev))
- ret = vlv_resume_prepare(dev_priv, rpm_resume);
- else
- ret = 0;
-
- return ret;
-}
-
static const struct dev_pm_ops i915_pm_ops = {
+ /*
+ * S0ix (via system suspend) and S3 event handlers [PMSG_SUSPEND,
+ * PMSG_RESUME]
+ */
.suspend = i915_pm_suspend,
.suspend_late = i915_pm_suspend_late,
.resume_early = i915_pm_resume_early,
.resume = i915_pm_resume,
- .freeze = i915_pm_freeze,
- .freeze_late = i915_pm_freeze_late,
- .thaw_early = i915_pm_thaw_early,
- .thaw = i915_pm_thaw,
- .poweroff = i915_pm_poweroff,
+
+ /*
+ * S4 event handlers
+ * @freeze, @freeze_late : called (1) before creating the
+ * hibernation image [PMSG_FREEZE] and
+ * (2) after rebooting, before restoring
+ * the image [PMSG_QUIESCE]
+ * @thaw, @thaw_early : called (1) after creating the hibernation
+ * image, before writing it [PMSG_THAW]
+ * and (2) after failing to create or
+ * restore the image [PMSG_RECOVER]
+ * @poweroff, @poweroff_late: called after writing the hibernation
+ * image, before rebooting [PMSG_HIBERNATE]
+ * @restore, @restore_early : called after rebooting and restoring the
+ * hibernation image [PMSG_RESTORE]
+ */
+ .freeze = i915_pm_suspend,
+ .freeze_late = i915_pm_suspend_late,
+ .thaw_early = i915_pm_resume_early,
+ .thaw = i915_pm_resume,
+ .poweroff = i915_pm_suspend,
+ .poweroff_late = i915_pm_suspend_late,
.restore_early = i915_pm_resume_early,
.restore = i915_pm_resume,
+
+ /* S0ix (via runtime suspend) event handlers */
.runtime_suspend = intel_runtime_suspend,
.runtime_resume = intel_runtime_resume,
};
.set_busid = drm_pci_set_busid,
/* Used in place of i915_pm_ops for non-DRIVER_MODESET */
- .suspend = i915_suspend,
+ .suspend = i915_suspend_legacy,
.resume = i915_resume_legacy,
.device_is_agp = i915_driver_device_is_agp,
.gem_prime_import = i915_gem_prime_import,
.dumb_create = i915_gem_dumb_create,
- .dumb_map_offset = i915_gem_mmap_gtt,
+ .dumb_map_offset = i915_gem_dumb_map_offset,
.dumb_destroy = drm_gem_dumb_destroy,
.ioctls = i915_ioctls,
.fops = &i915_driver_fops,
projects / cascardo / linux.git / blobdiff