On Wed, 2014-06-18 at 09:52 -0700, Jesse Barnes wrote: > We don't need to uninstall the full handler, simply disabling interrupts > ought to be enough. > > Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
Reviewed-by: Imre Deak <imre.d...@intel.com>
For follow-up:
I agree with Daniel that we should add a new helper and use it instead
of the current dev->irq_enabled checks elsewhere.
Also we should add this check to the irq handlers themselves.
--Imre
> ---
> drivers/gpu/drm/i915/i915_drv.c | 5 ++---
> drivers/gpu/drm/i915/intel_pm.c | 4 ++--
> 2 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 7ae4e2a..be97741 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -522,7 +522,7 @@ static int i915_drm_freeze(struct drm_device *dev)
> return error;
> }
>
> - drm_irq_uninstall(dev);
> + intel_runtime_pm_disable_interrupts(dev);
> dev_priv->enable_hotplug_processing = false;
>
> intel_suspend_gt_powersave(dev);
> @@ -646,8 +646,7 @@ static int __i915_drm_thaw(struct drm_device *dev, bool
> restore_gtt_mappings)
> }
> mutex_unlock(&dev->struct_mutex);
>
> - /* We need working interrupts for modeset enabling ... */
> - drm_irq_install(dev, dev->pdev->irq);
> + intel_runtime_pm_restore_interrupts(dev);
>
> intel_modeset_init_hw(dev);
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 2043c4b..0bf9b0c 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -4879,7 +4879,7 @@ void intel_suspend_gt_powersave(struct drm_device *dev)
> struct drm_i915_private *dev_priv = dev->dev_private;
>
> /* Interrupts should be disabled already to avoid re-arming. */
> - WARN_ON(dev->irq_enabled);
> + WARN_ON(dev->irq_enabled && !dev_priv->pm.irqs_disabled);
>
> flush_delayed_work(&dev_priv->rps.delayed_resume_work);
>
> @@ -4891,7 +4891,7 @@ void intel_disable_gt_powersave(struct drm_device *dev)
> struct drm_i915_private *dev_priv = dev->dev_private;
>
> /* Interrupts should be disabled already to avoid re-arming. */
> - WARN_ON(dev->irq_enabled);
> + WARN_ON(dev->irq_enabled && !dev_priv->pm.irqs_disabled);
>
> if (IS_IRONLAKE_M(dev)) {
> ironlake_disable_drps(dev);
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