[Intel-gfx] [PATCH 3/3] drm/i915: Enable runtime pm autosuspend by default

[Gupta, Anshuman]

> -----Original Message-----
> From: Vivi, Rodrigo <rodrigo.vivi at intel.com>
> Sent: Friday, September 10, 2021 11:15 PM
> To: intel-gfx at lists.freedesktop.org
> Cc: Vivi, Rodrigo <rodrigo.vivi at intel.com>; Daniel Vetter
> <daniel.vetter at ffwll.ch>; David Weinehall <david.weinehall at linux.intel.com>;
> Tangudu, Tilak <tilak.tangudu at intel.com>; Deak, Imre <imre.deak at intel.com>;
> Gupta, Anshuman <anshuman.gupta at intel.com>
> Subject: [PATCH 3/3] drm/i915: Enable runtime pm autosuspend by default
> 
> Let's enable runtime pm autosuspend by default everywhere.
> 
> But at this time let's not touch the autosuspend_delay time, what caused some
> regression on our previous attempt.
> 
> v2: CI on some gen9 platforms was not clean. But it came
>     pretty clean on newer generations. For now, let's
>     pick gen12 and newer. We will return later to extend
>     that to older platforms.
> 
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: David Weinehall <david.weinehall at linux.intel.com>
> Cc: Tilak Tangudu <tilak.tangudu at intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Reviewed-by: Anshuman Gupta <anshuman.gupta at intel.com> #v1
> ---
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index f28b5bab61b4..f91a04c3ef14 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -605,6 +605,10 @@ void intel_runtime_pm_enable(struct
> intel_runtime_pm *rpm)
>  		pm_runtime_use_autosuspend(kdev);
>  	}
> 
> +	/* XXX: Enable by default only for newer platforms for now */
> +	if (GRAPHICS_VER(i915) >= 12)
> +		pm_runtime_allow(kdev);
	Reviewed-by: Anshuman Gupta <anshuman.gupta at intel.com>
	Looks good to me.
	Br,
	Anshuman Gupta.
> +
>  	/*
>  	 * The core calls the driver load handler with an RPM reference held.
>  	 * We drop that here and will reacquire it during unloading in
> --
> 2.31.1