[PATCH 06/31] drm/xe: Use i915-display shutdown sequence directly

[Cavitt, Jonathan]

-----Original Message-----
From: Intel-xe <intel-xe-bounces at lists.freedesktop.org> On Behalf Of Rodrigo Vivi
Sent: Tuesday, September 24, 2024 1:35 PM
To: intel-gfx at lists.freedesktop.org; intel-xe at lists.freedesktop.org
Cc: Deak, Imre <imre.deak at intel.com>; Vivi, Rodrigo <rodrigo.vivi at intel.com>
Subject: [PATCH 06/31] drm/xe: Use i915-display shutdown sequence directly
> 
> Start the xe-i915-display reconciliation by using the same
> shutdown sequences.
> 
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

LGTM.
Reviewed-by: Jonathan Cavitt <jonathan.cavitt at intel.com>
-Jonathan Cavitt

> ---
>  drivers/gpu/drm/xe/display/xe_display.c | 46 +++++++------------------
>  drivers/gpu/drm/xe/display/xe_display.h |  5 +--
>  drivers/gpu/drm/xe/xe_device.c          |  4 ++-
>  3 files changed, 19 insertions(+), 36 deletions(-)
> 
> diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
> index 0237d458078b..b5a2a09e7a71 100644
> --- a/drivers/gpu/drm/xe/display/xe_display.c
> +++ b/drivers/gpu/drm/xe/display/xe_display.c
> @@ -10,7 +10,6 @@
>  
>  #include <drm/drm_drv.h>
>  #include <drm/drm_managed.h>
> -#include <drm/drm_atomic_helper.h>
>  #include <drm/drm_probe_helper.h>
>  #include <uapi/drm/xe_drm.h>
>  
> @@ -355,32 +354,26 @@ void xe_display_pm_suspend(struct xe_device *xe)
>  
>  void xe_display_pm_shutdown(struct xe_device *xe)
>  {
> -	struct intel_display *display = &xe->display;
> -
>  	if (!xe->info.probe_display)
>  		return;
>  
> -	intel_power_domains_disable(xe);
> -	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true);
> -	if (has_display(xe)) {
> -		drm_kms_helper_poll_disable(&xe->drm);
> -		intel_display_driver_disable_user_access(xe);
> -
> -		drm_atomic_helper_shutdown(&xe->drm);
> -	}
> -
> -	intel_dp_mst_suspend(xe);
> -	intel_hpd_cancel_work(xe);
> +	intel_display_driver_shutdown(xe);
> +}
>  
> -	if (has_display(xe))
> -		intel_display_driver_suspend_access(xe);
> +void xe_display_pm_shutdown_noirq(struct xe_device *xe)
> +{
> +	if (!xe->info.probe_display)
> +		return;
>  
> -	intel_encoder_suspend_all(display);
> -	intel_encoder_shutdown_all(display);
> +	intel_display_driver_shutdown_noirq(xe);
> +}
>  
> -	intel_opregion_suspend(display, PCI_D3cold);
> +void xe_display_pm_shutdown_noaccel(struct xe_device *xe)
> +{
> +	if (!xe->info.probe_display)
> +		return;
>  
> -	intel_dmc_suspend(display);
> +	intel_display_driver_shutdown_nogem(xe);
>  }
>  
>  void xe_display_pm_runtime_suspend(struct xe_device *xe)
> @@ -405,19 +398,6 @@ void xe_display_pm_suspend_late(struct xe_device *xe)
>  	intel_display_power_suspend_late(xe);
>  }
>  
> -void xe_display_pm_shutdown_late(struct xe_device *xe)
> -{
> -	if (!xe->info.probe_display)
> -		return;
> -
> -	/*
> -	 * The only requirement is to reboot with display DC states disabled,
> -	 * for now leaving all display power wells in the INIT power domain
> -	 * enabled.
> -	 */
> -	intel_power_domains_driver_remove(xe);
> -}
> -
>  void xe_display_pm_resume_early(struct xe_device *xe)
>  {
>  	if (!xe->info.probe_display)
> diff --git a/drivers/gpu/drm/xe/display/xe_display.h b/drivers/gpu/drm/xe/display/xe_display.h
> index 17afa537aee5..a801db19b64f 100644
> --- a/drivers/gpu/drm/xe/display/xe_display.h
> +++ b/drivers/gpu/drm/xe/display/xe_display.h
> @@ -35,9 +35,10 @@ void xe_display_irq_reset(struct xe_device *xe);
>  void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt);
>  
>  void xe_display_pm_suspend(struct xe_device *xe);
> -void xe_display_pm_shutdown(struct xe_device *xe);
>  void xe_display_pm_suspend_late(struct xe_device *xe);
> -void xe_display_pm_shutdown_late(struct xe_device *xe);
> +void xe_display_pm_shutdown(struct xe_device *xe);
> +void xe_display_pm_shutdown_noirq(struct xe_device *xe);
> +void xe_display_pm_shutdown_noaccel(struct xe_device *xe);
>  void xe_display_pm_resume_early(struct xe_device *xe);
>  void xe_display_pm_resume(struct xe_device *xe);
>  void xe_display_pm_runtime_suspend(struct xe_device *xe);
> diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
> index cb5a9fd820cf..7c698b4b265b 100644
> --- a/drivers/gpu/drm/xe/xe_device.c
> +++ b/drivers/gpu/drm/xe/xe_device.c
> @@ -822,10 +822,12 @@ void xe_device_shutdown(struct xe_device *xe)
>  
>  		xe_irq_suspend(xe);
>  
> +		xe_display_pm_shutdown_noirq(xe);
> +
>  		for_each_gt(gt, xe, id)
>  			xe_gt_shutdown(gt);
>  
> -		xe_display_pm_shutdown_late(xe);
> +		xe_display_pm_shutdown_noaccel(xe);
>  	} else {
>  		/* BOOM! */
>  		__xe_driver_flr(xe);
> -- 
> 2.46.0
> 
>