Re: [CI] drm/{i915, xe}: move intel_opregion_suspend() to intel_display_driver_pm_suspend_late()

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Thu, Oct 08, 2026 at 02:47:35PM +0300, Jani Nikula wrote:
> Try to unify the suspend paths and behaviour by moving the
> intel_opregion_suspend() calls to
> intel_display_driver_pm_suspend_late().
> 
> This is a change in the suspend sequences. The idea behind adding this
> to intel_display_driver_pm_suspend_late() is primarily based on not
> having to pass the s2idle parameter to more functions than that.
> 
> This also changes behaviour for i915 hibernation, going for PCI_D3cold
> instead of PCI_D1 on hibernate.

Pretty sure I pointed out before that this isn't true. PCI_D3cold is
what the current code also does.

I suppose it *might* be the case if one does something like 
'echo reboot > /sys/power/disk', but I've not actually checked
what that sort of thing does to acpi_target_system_state()...

> It's probably the correct thing to do
> anyway, I don't think it should matter all that much, but fingers
> crossed.
> 
> Reviewed-by: Imre Deak <imre.deak@intel.com>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display_driver.c | 2 ++
>  drivers/gpu/drm/i915/i915_driver.c                  | 4 ----
>  drivers/gpu/drm/xe/display/xe_display.c             | 3 ---
>  3 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
> index 77009dca7d0d..abab457bce3a 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_driver.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
> @@ -783,6 +783,8 @@ void intel_display_driver_pm_suspend_late(struct intel_display *display, bool s2
>  	if (!HAS_DISPLAY(display))
>  		return;
>  
> +	intel_opregion_suspend(display, s2idle ? PCI_D1 : PCI_D3cold);
> +
>  	intel_display_power_suspend_late(display, s2idle);
>  }
>  
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 9e047c27a153..293099fe6639 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -1075,7 +1075,6 @@ static int i915_drm_suspend(struct drm_device *dev)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(dev);
>  	struct intel_display *display = dev_priv->display;
> -	pci_power_t opregion_target_state;
>  
>  	disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
>  
> @@ -1089,9 +1088,6 @@ static int i915_drm_suspend(struct drm_device *dev)
>  
>  	i9xx_display_sr_save(display);
>  
> -	opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold;
> -	intel_opregion_suspend(display, opregion_target_state);
> -
>  	dev_priv->suspend_count++;
>  
>  	enable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
> diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
> index aab416485e3e..7d19f3c42e0e 100644
> --- a/drivers/gpu/drm/xe/display/xe_display.c
> +++ b/drivers/gpu/drm/xe/display/xe_display.c
> @@ -238,14 +238,11 @@ static bool suspend_to_idle(void)
>  void xe_display_pm_suspend(struct xe_device *xe)
>  {
>  	struct intel_display *display = xe->display;
> -	bool s2idle = suspend_to_idle();
>  
>  	if (!xe->info.probe_display)
>  		return;
>  
>  	intel_display_driver_pm_suspend(display);
> -
> -	intel_opregion_suspend(display, s2idle ? PCI_D1 : PCI_D3cold);
>  }
>  
>  void xe_display_pm_suspend_late(struct xe_device *xe)
> -- 
> 2.47.3

-- 
Ville Syrjälä
Intel