diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index cd3f511847ec..2590a5c90725 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -31,6 +31,7 @@ #include "../../../platform/x86/intel_ips.h" #include <linux/module.h> #include <drm/i915_powerwell.h> +#include <linux/pm_runtime.h> /** * RC6 is a special power stage which allows the GPU to enter an very @@ -5961,6 +5962,60 @@ void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv) hsw_enable_package_c8(dev_priv); } +void intel_runtime_pm_get(struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = dev_priv->dev; + struct device *device = &dev->pdev->dev; + + if (!HAS_RUNTIME_PM(dev)) + return; + + pm_runtime_get_sync(device); + WARN(dev_priv->pm.suspended, "Device still suspended.\n"); +} + +void intel_runtime_pm_put(struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = dev_priv->dev; + struct device *device = &dev->pdev->dev; + + if (!HAS_RUNTIME_PM(dev)) + return; + + pm_runtime_mark_last_busy(device); + pm_runtime_put_autosuspend(device); +} + +void intel_init_runtime_pm(struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = dev_priv->dev; + struct device *device = &dev->pdev->dev; + + dev_priv->pm.suspended = false; + + if (!HAS_RUNTIME_PM(dev)) + return; + + pm_runtime_set_active(device); + + pm_runtime_set_autosuspend_delay(device, 10000); /* 10s */ + pm_runtime_mark_last_busy(device); + pm_runtime_use_autosuspend(device); +} + +void intel_fini_runtime_pm(struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = dev_priv->dev; + struct device *device = &dev->pdev->dev; + + if (!HAS_RUNTIME_PM(dev)) + return; + + /* Make sure we're not suspended first. */ + pm_runtime_get_sync(device); + pm_runtime_disable(device); +} + /* Set up chip specific power management-related functions */ void intel_init_pm(struct drm_device *dev) { |